:root {
  --ink: #071b2b;
  --ink-soft: #102d42;
  --blue: #0787ea;
  --blue-bright: #16a5ff;
  --cyan: #80e8ff;
  --mint: #baff71;
  --cream: #f7f8f3;
  --white: #ffffff;
  --text: #152d3d;
  --muted: #617381;
  --line: #dce5e9;
  --shadow: 0 24px 70px rgba(4, 25, 41, 0.14);
  --radius-lg: 34px;
  --radius-md: 22px;
  --page: min(1160px, calc(100% - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--cream);
  font-family:
    Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei",
    "Noto Sans CJK SC", sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

button {
  font: inherit;
}

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

svg {
  display: block;
}

.page-shell {
  width: var(--page);
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  min-height: 44px;
  display: flex;
  align-items: center;
  transform: translateY(-150%);
  background: var(--white);
  color: var(--ink);
  padding: 10px 14px;
  border-radius: 8px;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  z-index: 50;
  top: 0;
  width: 100%;
  color: var(--white);
  background: rgba(7, 27, 43, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(18px);
}

.nav-shell {
  width: var(--page);
  height: 76px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--white);
  font-size: 20px;
  font-weight: 790;
  letter-spacing: -0.7px;
}

.brand > span > span {
  color: #58c2ff;
  font-weight: 500;
}

.brand-mark {
  width: 34px;
  height: 34px;
  fill: currentColor;
  overflow: visible;
}

.brand-mark .brand-cut {
  fill: var(--ink);
}

.brand-mark .brand-wave {
  fill: none;
  stroke: #58c2ff;
  stroke-linecap: round;
  stroke-width: 2.4;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  font-size: 14px;
  font-weight: 650;
}

.desktop-nav a {
  opacity: 0.74;
  transition: opacity 180ms ease;
}

.desktop-nav a:hover {
  opacity: 1;
}

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

.language-toggle {
  display: flex;
  align-items: center;
  gap: 7px;
  border: 0;
  color: var(--white);
  background: transparent;
  cursor: pointer;
  padding: 8px 0;
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.05em;
}

.lang-option {
  opacity: 0.42;
  transition: opacity 180ms ease;
}

.lang-option.active {
  opacity: 1;
}

.toggle-track {
  position: relative;
  width: 32px;
  height: 18px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.1);
  border-radius: 20px;
}

.toggle-track span {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--mint);
  transition: transform 220ms ease;
}

html[lang="zh-CN"] .toggle-track span {
  transform: translateX(14px);
}

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0 23px;
  font-size: 14px;
  font-weight: 750;
  line-height: 1;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.button svg,
.text-link svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.button:hover {
  transform: translateY(-2px);
}

.button-small {
  min-height: 40px;
  padding-inline: 18px;
  font-size: 13px;
}

.button-light {
  background: var(--white);
  color: var(--ink);
}

.button-primary {
  color: var(--ink);
  background: var(--mint);
  box-shadow: 0 10px 28px rgba(186, 255, 113, 0.18);
}

.button-primary:hover {
  box-shadow: 0 14px 34px rgba(186, 255, 113, 0.28);
}

.button-ghost {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.05);
}

.button-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}

.menu-button,
.mobile-menu {
  display: none;
}

.hero {
  position: relative;
  min-height: 830px;
  padding-top: 76px;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 72% 35%, rgba(17, 153, 232, 0.23), transparent 30%),
    linear-gradient(120deg, #061725 0%, #09283c 60%, #061d2d 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
}

.hero-orbit {
  position: absolute;
  border: 1px solid rgba(90, 204, 255, 0.18);
  border-radius: 50%;
}

.orbit-one {
  width: 590px;
  height: 590px;
  right: -120px;
  top: 70px;
}

.orbit-two {
  width: 420px;
  height: 420px;
  right: -35px;
  top: 154px;
}

.hero-grid {
  position: relative;
  z-index: 2;
  min-height: 660px;
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  align-items: center;
  gap: 62px;
  padding-block: 64px 52px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #94dfff;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 5px rgba(186, 255, 113, 0.1);
}

.eyebrow-dark {
  color: #087fbe;
}

.eyebrow-light {
  color: #8fdcff;
}

.hero h1,
.section-heading h2,
.integration-copy h2,
.cta-inner h2 {
  margin: 22px 0 0;
  letter-spacing: -0.055em;
  line-height: 0.98;
  font-weight: 720;
}

.hero h1 {
  max-width: 650px;
  font-size: clamp(54px, 5.5vw, 80px);
}

h1 em,
h2 em {
  color: #70ccff;
  font-family: Georgia, "Songti SC", "SimSun", serif;
  font-weight: 400;
}

.hero-lede {
  max-width: 625px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.69);
  font-size: 17px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-note {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.52);
  font-size: 12px;
}

.hero-note svg {
  width: 17px;
  height: 17px;
  padding: 2px;
  border-radius: 50%;
  color: var(--mint);
  background: rgba(186, 255, 113, 0.12);
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.product-stage {
  position: relative;
  min-height: 550px;
  display: grid;
  place-items: center;
}

.stage-glow {
  position: absolute;
  width: 370px;
  height: 370px;
  border-radius: 50%;
  filter: blur(10px);
  background: radial-gradient(circle, rgba(68, 190, 255, 0.23), transparent 68%);
}

.phone-frame {
  position: relative;
  z-index: 2;
  width: 310px;
  height: 584px;
  padding: 9px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 49px;
  background: linear-gradient(150deg, #d9f2ff 0%, #42687c 22%, #05121c 55%, #304d5c 100%);
  box-shadow:
    0 50px 100px rgba(0, 0, 0, 0.4),
    inset 0 0 0 2px rgba(255, 255, 255, 0.1);
  transform: rotate(3deg);
}

.phone-screen {
  position: relative;
  height: 100%;
  overflow: hidden;
  color: var(--text);
  border-radius: 40px;
  background: #f3f7f8;
}

.phone-speaker {
  position: absolute;
  z-index: 5;
  top: 19px;
  left: 50%;
  width: 84px;
  height: 23px;
  border-radius: 20px;
  background: #050b10;
  transform: translateX(-50%);
}

.preview-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 54px 20px 14px;
  color: var(--white);
  background: linear-gradient(125deg, #087dd0, #13a4dd);
}

.preview-header > div:first-child {
  display: grid;
  gap: 3px;
}

.preview-header small {
  font-size: 7px;
  font-weight: 900;
  letter-spacing: 0.16em;
  opacity: 0.78;
}

.preview-header strong {
  font-size: 18px;
}

.coin-balance {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 8px;
  font-size: 10px;
  font-weight: 800;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 20px;
  background: rgba(5, 50, 84, 0.18);
}

.coin-balance svg {
  width: 15px;
  height: 15px;
  fill: rgba(186, 255, 113, 0.22);
  stroke: var(--mint);
  stroke-width: 1.4;
}

.preview-promo {
  height: 82px;
  margin: 12px 13px 0;
  padding: 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  overflow: hidden;
  color: var(--white);
  border-radius: 17px;
  background:
    radial-gradient(circle at 86% 20%, rgba(186, 255, 113, 0.35), transparent 26%),
    linear-gradient(130deg, #142d3d, #1c526c);
}

.preview-promo > div:first-child {
  display: grid;
  gap: 4px;
}

.preview-promo span {
  color: var(--mint);
  font-size: 7px;
  font-weight: 900;
  letter-spacing: 0.1em;
}

.preview-promo strong {
  font-size: 16px;
}

.promo-coins {
  position: relative;
  width: 70px;
  height: 60px;
}

.promo-coins i {
  position: absolute;
  width: 31px;
  height: 31px;
  border: 5px solid #d5ff99;
  border-radius: 50%;
  background: #9fe853;
  box-shadow: 0 5px 0 #5fab2e;
}

.promo-coins i:nth-child(1) {
  top: 2px;
  left: 25px;
}

.promo-coins i:nth-child(2) {
  left: 5px;
  bottom: 3px;
}

.promo-coins i:nth-child(3) {
  right: 1px;
  bottom: 0;
}

.category-row {
  display: flex;
  gap: 7px;
  padding: 13px 13px 8px;
  overflow: hidden;
}

.category-row button {
  white-space: nowrap;
  color: #69808e;
  border: 1px solid #d9e4e8;
  border-radius: 20px;
  background: var(--white);
  padding: 6px 10px;
  font-size: 8px;
  font-weight: 750;
  cursor: pointer;
}

.category-row button.active {
  color: var(--white);
  border-color: #0e87cd;
  background: #0e87cd;
}

.offer-list {
  display: grid;
  gap: 7px;
  padding: 0 13px;
}

.offer-card {
  width: 100%;
  display: grid;
  grid-template-columns: 42px 1fr auto;
  align-items: center;
  gap: 9px;
  color: var(--text);
  text-align: left;
  border: 1px solid #e2eaed;
  border-radius: 14px;
  background: var(--white);
  padding: 8px;
  box-shadow: 0 3px 12px rgba(26, 56, 74, 0.04);
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease;
}

.offer-card:hover,
.offer-card.selected {
  border-color: #29a4e8;
  transform: translateX(3px);
}

.offer-art {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: var(--white);
  border-radius: 11px;
  font-size: 18px;
  font-weight: 900;
}

.offer-art svg {
  width: 26px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
}

.art-violet {
  background: linear-gradient(145deg, #7d5bdf, #4c27ad);
}

.art-mint {
  background: linear-gradient(145deg, #26b9ac, #087f81);
}

.art-coral {
  background: linear-gradient(145deg, #ff7b76, #c94756);
}

.offer-copy {
  min-width: 0;
  display: grid;
  gap: 3px;
}

.offer-copy strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 10px;
}

.offer-copy small {
  color: #7b8d98;
  font-size: 8px;
}

.reward {
  color: #148948;
  border-radius: 12px;
  background: #e9faef;
  padding: 5px 6px;
  font-size: 8px;
  font-weight: 900;
}

.preview-homebar {
  position: absolute;
  bottom: 8px;
  left: 50%;
  width: 90px;
  height: 4px;
  border-radius: 5px;
  background: #173142;
  transform: translateX(-50%);
}

.floating-chip {
  position: absolute;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 15px;
  color: var(--white);
  background: rgba(10, 39, 58, 0.85);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(14px);
}

.revenue-chip {
  left: 3px;
  bottom: 112px;
  padding: 10px 14px 10px 10px;
  transform: rotate(-4deg);
}

.chip-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: var(--ink);
  border-radius: 10px;
  background: var(--mint);
}

.chip-icon svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.revenue-chip > span:last-child {
  display: grid;
  gap: 2px;
}

.revenue-chip small {
  color: rgba(255, 255, 255, 0.55);
  font-size: 8px;
}

.revenue-chip strong {
  color: var(--mint);
  font-size: 15px;
}

.live-chip {
  top: 58px;
  right: -1px;
  gap: 8px;
  padding: 8px 12px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.11em;
}

.pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 4px rgba(186, 255, 113, 0.12);
  animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {
  50% {
    box-shadow: 0 0 0 8px rgba(186, 255, 113, 0);
  }
}

.proof-bar {
  position: relative;
  z-index: 3;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.12);
}

.proof-grid {
  min-height: 132px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: center;
}

.proof-grid > div {
  display: grid;
  gap: 6px;
  padding-left: 30px;
  border-left: 1px solid rgba(255, 255, 255, 0.13);
}

.proof-grid > div:first-child {
  padding-left: 0;
  border: 0;
}

.proof-grid strong {
  font-family: Georgia, serif;
  color: var(--white);
  font-size: 31px;
  font-weight: 400;
}

.proof-grid span {
  color: rgba(255, 255, 255, 0.5);
  font-size: 11px;
}

.section {
  padding-block: 120px;
}

.solutions-section {
  background: var(--cream);
}

.experience-section {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(rgba(7, 27, 43, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 27, 43, 0.025) 1px, transparent 1px),
    #eaf6f9;
  background-size: 56px 56px;
}

.experience-signal {
  position: absolute;
  border: 1px solid rgba(8, 127, 190, 0.12);
  border-radius: 50%;
}

.signal-one {
  width: 480px;
  height: 480px;
  top: -250px;
  left: -190px;
  box-shadow:
    0 0 0 70px rgba(8, 127, 190, 0.035),
    0 0 0 140px rgba(8, 127, 190, 0.02);
}

.signal-two {
  width: 320px;
  height: 320px;
  right: -210px;
  bottom: 10px;
  box-shadow:
    0 0 0 60px rgba(8, 127, 190, 0.035),
    0 0 0 120px rgba(8, 127, 190, 0.02);
}

.experience-heading {
  position: relative;
  z-index: 2;
  max-width: 820px !important;
}

.experience-context {
  position: relative;
  z-index: 2;
  width: fit-content;
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 34px auto 0;
  padding: 11px 18px;
  border: 1px solid rgba(8, 127, 190, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 10px 30px rgba(7, 27, 43, 0.05);
  backdrop-filter: blur(10px);
}

.experience-context > span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #3e5a6a;
  font-size: 10px;
  font-weight: 750;
}

.experience-context svg {
  width: 16px;
  height: 16px;
  padding: 3px;
  color: #13773d;
  border-radius: 50%;
  background: #e1f6e8;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
}

.experience-gallery {
  position: relative;
  z-index: 2;
  min-height: 655px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 42px;
  margin-top: 34px;
  padding: 34px 0 0;
}

.experience-device {
  position: relative;
  width: 244px;
  display: grid;
  gap: 12px;
  color: var(--text);
  text-align: left;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: zoom-in;
  transition:
    transform 250ms ease,
    filter 250ms ease;
}

.experience-device:hover {
  z-index: 4;
  transform: translateY(-10px) rotate(0);
  filter: drop-shadow(0 28px 34px rgba(7, 27, 43, 0.17));
}

.device-web {
  transform: translateY(28px) rotate(-5deg);
}

.device-detail {
  transform: translateY(28px) rotate(5deg);
}

.featured-device {
  z-index: 3;
  width: 272px;
}

.device-label {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #4e6877;
  border: 1px solid rgba(7, 27, 43, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  padding: 7px 10px;
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.11em;
}

.device-label i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #0b91d0;
  box-shadow: 0 0 0 4px rgba(11, 145, 208, 0.1);
}

.device-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 0.45;
  padding: 7px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 36px;
  background: linear-gradient(145deg, #718593, #07141e 32%, #1a3445 77%, #9fb2bc);
  box-shadow:
    0 30px 65px rgba(7, 27, 43, 0.2),
    inset 0 0 0 1px rgba(255, 255, 255, 0.18);
}

.device-frame::before {
  content: "";
  position: absolute;
  z-index: 3;
  top: 14px;
  left: 50%;
  width: 70px;
  height: 20px;
  border-radius: 18px;
  background: #050b0e;
  transform: translateX(-50%);
  box-shadow: inset 0 -1px rgba(255, 255, 255, 0.08);
}

.device-frame img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  border-radius: 29px;
}

.device-shine {
  position: absolute;
  z-index: 2;
  inset: 7px;
  border-radius: 29px;
  pointer-events: none;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.12), transparent 22%, transparent 75%);
}

.device-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-inline: 8px;
}

.device-caption strong {
  color: var(--ink);
  font-size: 12px;
}

.device-caption small {
  color: #79909d;
  font-size: 8px;
}

.swipe-hint {
  display: none;
}

.asset-lightbox {
  width: min(96vw, 520px);
  max-height: 92vh;
  overflow: visible;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 28px;
  background: #07131c;
  padding: 10px;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.55);
}

.asset-lightbox::backdrop {
  background: rgba(2, 10, 15, 0.82);
  backdrop-filter: blur(12px);
}

.lightbox-content {
  max-height: calc(92vh - 20px);
  overflow-y: auto;
  border-radius: 20px;
  scrollbar-width: none;
}

.lightbox-content::-webkit-scrollbar {
  display: none;
}

.lightbox-content img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 20px;
}

.lightbox-content p {
  position: sticky;
  bottom: 8px;
  width: calc(100% - 16px);
  margin: -62px 8px 8px;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 14px;
  background: rgba(7, 27, 43, 0.86);
  padding: 13px 16px;
  font-size: 11px;
  line-height: 1.5;
  backdrop-filter: blur(14px);
}

.lightbox-close {
  position: absolute;
  z-index: 5;
  top: -16px;
  right: -16px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  background: var(--ink);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.28);
  cursor: pointer;
}

.lightbox-close svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
}

.section-heading.centered {
  max-width: 760px;
  margin-inline: auto;
  text-align: center;
}

.section-heading h2,
.integration-copy h2 {
  color: var(--ink);
  font-size: clamp(42px, 5vw, 64px);
}

.section-heading h2 em,
.integration-copy h2 em {
  color: #0987c8;
}

.section-heading > p {
  max-width: 570px;
  margin: 22px auto 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.surface-tabs {
  width: fit-content;
  margin: 52px auto 24px;
  display: flex;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--white);
}

.surface-tab {
  min-width: 255px;
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
  color: var(--text);
  border: 0;
  border-radius: 13px;
  background: transparent;
  padding: 12px 16px;
  cursor: pointer;
}

.surface-tab.active {
  color: var(--white);
  background: var(--ink);
  box-shadow: 0 12px 24px rgba(7, 27, 43, 0.18);
}

.tab-icon {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: #168bc6;
  border-radius: 10px;
  background: #eaf7fd;
}

.surface-tab.active .tab-icon {
  color: var(--mint);
  background: rgba(255, 255, 255, 0.1);
}

.tab-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
}

.surface-tab > span:last-child {
  display: grid;
  gap: 3px;
}

.surface-tab strong {
  font-size: 13px;
}

.surface-tab small {
  color: var(--muted);
  font-size: 10px;
}

.surface-tab.active small {
  color: rgba(255, 255, 255, 0.5);
}

.surface-panel {
  min-height: 520px;
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  align-items: center;
  gap: 70px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
  padding: 64px;
  box-shadow: var(--shadow);
}

.surface-panel.switching {
  animation: panel-switch 320ms ease;
}

@keyframes panel-switch {
  0% {
    opacity: 0.65;
    transform: translateY(5px);
  }
}

.surface-kicker {
  color: #0681bd;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.13em;
}

.surface-copy h3 {
  margin: 16px 0;
  color: var(--ink);
  font-size: 35px;
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.surface-copy > p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 24px 0 28px;
  padding: 0;
  list-style: none;
  color: #284456;
  font-size: 13px;
}

.check-list li {
  position: relative;
  padding-left: 28px;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: -2px;
  width: 19px;
  height: 19px;
  display: grid;
  place-items: center;
  color: #13773d;
  border-radius: 50%;
  background: #e7f8ec;
  font-size: 11px;
  font-weight: 900;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #087fbe;
  font-size: 13px;
  font-weight: 800;
}

.integration-visual {
  position: relative;
  min-height: 500px;
  overflow: visible;
  border: 1px solid #d7e2e7;
  border-radius: 20px;
  background: #0c1115;
  box-shadow: 0 25px 55px rgba(16, 49, 68, 0.16);
  transform: perspective(900px) rotateY(-4deg) rotateX(2deg);
  transition: background 280ms ease;
}

.visual-toolbar {
  height: 43px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 14px;
  color: rgba(255, 255, 255, 0.55);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: #111b22;
  border-radius: 19px 19px 0 0;
}

.visual-dots {
  display: flex;
  gap: 6px;
}

.visual-dots span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
}

.visual-toolbar small {
  margin-left: 0;
  color: rgba(255, 255, 255, 0.5);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 8px;
}

.visual-toolbar > strong {
  margin-left: auto;
  color: var(--mint);
  font-size: 7px;
  font-weight: 900;
  letter-spacing: 0.11em;
}

.real-example-stage {
  position: relative;
  height: 457px;
  overflow: hidden;
  border-radius: 0 0 19px 19px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 50% 42%, #23333e, #0b1115 68%);
  background-size: 38px 38px, 38px 38px, auto;
}

.example-glow {
  position: absolute;
  width: 320px;
  height: 320px;
  top: 65px;
  left: 50%;
  border-radius: 50%;
  background: rgba(22, 165, 255, 0.16);
  filter: blur(48px);
  transform: translateX(-50%);
}

.example-phone {
  position: absolute;
  overflow: hidden;
  padding: 6px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 31px;
  background: linear-gradient(145deg, #8da0aa, #0b1216 28%, #1f323d 80%, #718692);
  box-shadow:
    0 28px 55px rgba(0, 0, 0, 0.45),
    inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.example-phone-primary {
  z-index: 2;
  width: 220px;
  height: 488px;
  top: 30px;
  left: 18%;
  transform: rotate(-3deg);
}

.example-phone-secondary {
  z-index: 1;
  width: 157px;
  height: 348px;
  top: 82px;
  right: 7%;
  opacity: 0.88;
  transform: rotate(6deg);
}

.example-phone img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: top;
  border-radius: 25px;
}

.example-notch {
  position: absolute;
  z-index: 3;
  top: 12px;
  left: 50%;
  width: 62px;
  height: 18px;
  border-radius: 16px;
  background: #030607;
  transform: translateX(-50%);
}

.example-phone-secondary .example-notch {
  width: 46px;
  height: 14px;
  top: 10px;
}

.example-flow {
  position: absolute;
  z-index: 4;
  left: 22px;
  bottom: 18px;
  display: grid;
  gap: 3px;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 13px;
  background: rgba(7, 27, 43, 0.86);
  padding: 10px 13px;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(12px);
}

.example-flow small {
  color: #79d7ff;
  font-size: 7px;
  font-weight: 900;
  letter-spacing: 0.11em;
}

.example-flow strong {
  font-size: 11px;
}

.integration-visual[data-surface-preview="web"] {
  background: #e7faff;
}

.integration-visual[data-surface-preview="web"] .visual-toolbar {
  color: #5d7380;
  border-bottom-color: #cce4eb;
  background: #f8fcfd;
}

.integration-visual[data-surface-preview="web"] .visual-dots span {
  background: #b5c8d0;
}

.integration-visual[data-surface-preview="web"] .visual-toolbar small {
  color: #718995;
}

.integration-visual[data-surface-preview="web"] .visual-toolbar > strong {
  color: #087fbe;
}

.integration-visual[data-surface-preview="web"] .real-example-stage {
  background:
    linear-gradient(rgba(8, 127, 190, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 127, 190, 0.045) 1px, transparent 1px),
    radial-gradient(circle at 50% 45%, #d4f5fb, #eefbfc 72%);
  background-size: 38px 38px, 38px 38px, auto;
}

.integration-visual[data-surface-preview="web"] .example-glow {
  background: rgba(67, 216, 241, 0.22);
}

.integration-visual[data-surface-preview="web"] .example-phone-primary {
  width: 254px;
  height: 554px;
  top: 25px;
  left: 50%;
  transform: translateX(-50%) rotate(2deg);
}

.integration-visual[data-surface-preview="web"] .example-phone-secondary {
  display: none;
}

.integration-visual[data-surface-preview="web"] .example-flow {
  left: 20px;
  bottom: 18px;
}

.visual-body {
  height: 330px;
  display: grid;
  grid-template-columns: 60px 1fr;
}

.visual-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
  padding-top: 22px;
  border-right: 1px solid #dde6e9;
  background: var(--ink);
  border-radius: 0 0 0 18px;
}

.mini-logo {
  width: 25px;
  height: 25px;
  display: grid;
  place-items: center;
  color: var(--ink);
  border-radius: 7px;
  background: var(--mint);
  font-size: 11px;
  font-weight: 900;
}

.visual-side i {
  width: 19px;
  height: 5px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.15);
}

.visual-content {
  padding: 26px;
}

.visual-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 18px;
  border-radius: 14px;
  background: linear-gradient(130deg, #0b89d0, #30b6e4);
}

.visual-top > div {
  display: grid;
  gap: 7px;
}

.visual-top i {
  width: 90px;
  height: 8px;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.6);
}

.visual-top i:last-child {
  width: 62px;
  opacity: 0.55;
}

.visual-top span {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: var(--ink);
  border-radius: 50%;
  background: var(--mint);
  font-size: 13px;
  font-weight: 900;
}

.visual-cards {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.visual-cards > div {
  height: 58px;
  display: grid;
  grid-template-columns: 39px 1fr 56px;
  align-items: center;
  gap: 10px;
  padding: 9px;
  border: 1px solid #e1e9ec;
  border-radius: 12px;
  background: var(--white);
}

.visual-cards b {
  width: 39px;
  height: 39px;
  border-radius: 9px;
  background: linear-gradient(145deg, #8b64e2, #5f36c2);
}

.visual-cards > div:nth-child(2) b {
  background: linear-gradient(145deg, #4bd1bb, #118b88);
}

.visual-cards > div:nth-child(3) b {
  background: linear-gradient(145deg, #ff8d75, #d45657);
}

.visual-cards span {
  display: grid;
  gap: 6px;
}

.visual-cards i {
  width: 75%;
  height: 6px;
  border-radius: 5px;
  background: #c8d5da;
}

.visual-cards i:last-child {
  width: 50%;
  opacity: 0.6;
}

.visual-cards em {
  width: 56px;
  height: 23px;
  border-radius: 12px;
  background: #e7f9ed;
}

.integration-badge {
  position: absolute;
  right: -18px;
  bottom: -18px;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 190px;
  padding: 12px;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 14px;
  background: var(--ink);
  box-shadow: 0 15px 35px rgba(7, 27, 43, 0.22);
}

.integration-badge svg {
  width: 34px;
  height: 34px;
  padding: 8px;
  color: var(--ink);
  border-radius: 10px;
  background: var(--mint);
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.integration-badge > span {
  display: grid;
  gap: 2px;
}

.integration-badge small {
  color: var(--mint);
  font-size: 7px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.integration-badge strong {
  font-size: 11px;
}

.why-section {
  color: var(--white);
  background:
    radial-gradient(circle at 85% 15%, rgba(16, 136, 202, 0.2), transparent 26%),
    var(--ink);
}

.split-heading {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: end;
  gap: 90px;
}

.split-heading h2 {
  color: var(--white);
}

.split-heading > p {
  margin-bottom: 6px;
  color: rgba(255, 255, 255, 0.55);
  font-size: 14px;
  line-height: 1.75;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 62px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  border-left: 1px solid rgba(255, 255, 255, 0.14);
}

.benefit-card {
  position: relative;
  min-height: 365px;
  overflow: hidden;
  padding: 30px;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.benefit-card.featured {
  color: var(--ink);
  background: var(--mint);
}

.benefit-number {
  position: absolute;
  top: 22px;
  right: 24px;
  color: rgba(255, 255, 255, 0.3);
  font-family: Georgia, serif;
  font-size: 18px;
}

.benefit-card.featured .benefit-number {
  color: rgba(7, 27, 43, 0.35);
}

.benefit-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  color: var(--cyan);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.06);
}

.benefit-card.featured .benefit-icon {
  color: var(--ink);
  border-color: rgba(7, 27, 43, 0.15);
  background: rgba(255, 255, 255, 0.3);
}

.benefit-icon svg {
  width: 27px;
  height: 27px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linejoin: round;
}

.benefit-card h3 {
  margin: 95px 0 15px;
  font-size: 21px;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.benefit-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: 12px;
  line-height: 1.75;
}

.benefit-card.featured p {
  color: rgba(7, 27, 43, 0.68);
}

.integration-section {
  background: var(--white);
}

.integration-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  align-items: center;
  gap: 96px;
}

.integration-copy > p {
  margin: 24px 0 30px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.path-list {
  border-top: 1px solid var(--line);
}

.path-row {
  width: 100%;
  min-height: 72px;
  display: grid;
  grid-template-columns: 36px 1fr 22px;
  align-items: center;
  gap: 12px;
  text-align: left;
  color: var(--text);
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
}

.path-index {
  color: #8da0aa;
  font-family: Georgia, serif;
  font-size: 13px;
}

.path-row > span:nth-child(2) {
  display: grid;
  gap: 4px;
}

.path-row strong {
  font-size: 13px;
}

.path-row small {
  color: #83949d;
  font-size: 10px;
}

.path-row svg {
  width: 20px;
  fill: none;
  stroke: #92a2aa;
  stroke-width: 1.6;
  transition: transform 180ms ease;
}

.path-row.active {
  color: #087fbe;
}

.path-row.active svg {
  color: #087fbe;
  stroke: currentColor;
  transform: translateX(3px);
}

.code-window {
  overflow: hidden;
  border-radius: 24px;
  background: #082031;
  box-shadow: 0 32px 80px rgba(5, 28, 44, 0.25);
}

.code-topbar {
  height: 58px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.code-topbar > div {
  display: flex;
  gap: 6px;
}

.code-topbar > div span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
}

.code-topbar small {
  color: rgba(255, 255, 255, 0.45);
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.code-status {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--mint);
  font-size: 8px;
  font-weight: 900;
}

.code-status i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
}

.code-window pre {
  min-height: 345px;
  margin: 0;
  padding: 47px 42px;
  overflow-x: auto;
  color: #d8e8ee;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.9;
}

.code-comment {
  color: #6e8b9a;
}

.code-key {
  color: #71d7ff;
}

.code-fn {
  color: #c8ff87;
}

.code-string {
  color: #ffd28a;
}

.code-footer {
  padding: 14px 22px;
  color: rgba(255, 255, 255, 0.53);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.12);
  font-size: 10px;
}

.code-footer > span {
  display: flex;
  align-items: center;
  gap: 7px;
}

.code-footer svg {
  width: 17px;
  height: 17px;
  padding: 3px;
  color: var(--mint);
  border-radius: 50%;
  background: rgba(186, 255, 113, 0.1);
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.cta-section {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background: linear-gradient(120deg, #087fc4, #0c9cd8);
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.14;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.2) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.2) 1px, transparent 1px);
  background-size: 55px 55px;
}

.cta-orbit {
  position: absolute;
  width: 420px;
  height: 420px;
  top: -210px;
  right: 4%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  box-shadow:
    0 0 0 70px rgba(255, 255, 255, 0.04),
    0 0 0 140px rgba(255, 255, 255, 0.025);
}

.cta-inner {
  position: relative;
  min-height: 390px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 60px;
}

.cta-inner .eyebrow {
  color: rgba(255, 255, 255, 0.75);
}

.cta-inner h2 {
  max-width: 740px;
  color: var(--white);
  font-size: clamp(45px, 5.3vw, 70px);
}

.cta-inner h2 em {
  color: var(--mint);
}

.cta-actions {
  min-width: 215px;
  display: grid;
  gap: 10px;
}

.cta-actions .button-ghost {
  background: rgba(0, 0, 0, 0.08);
}

.site-footer {
  color: var(--white);
  background: #05141f;
  padding: 54px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  align-items: center;
  gap: 30px;
}

.brand-footer {
  width: fit-content;
}

.footer-grid p {
  margin: 0;
  color: rgba(255, 255, 255, 0.4);
  font-size: 12px;
}

.footer-links {
  display: flex;
  gap: 24px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 11px;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  margin-top: 42px;
  padding-top: 22px;
  color: rgba(255, 255, 255, 0.28);
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  font-size: 9px;
}

.mobile-sticky-cta {
  display: none;
}

.toast {
  position: fixed;
  z-index: 80;
  left: 50%;
  bottom: 24px;
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(7, 27, 43, 0.94);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.25);
  padding: 11px 17px;
  font-size: 11px;
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 14px);
  transition:
    opacity 220ms ease,
    transform 220ms ease;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.toast svg {
  width: 18px;
  height: 18px;
  padding: 3px;
  color: var(--ink);
  border-radius: 50%;
  background: var(--mint);
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

@media (max-width: 980px) {
  :root {
    --page: min(100% - 36px, 760px);
  }

  .desktop-nav,
  .desktop-cta {
    display: none;
  }

  .menu-button {
    width: 38px;
    height: 38px;
    display: grid;
    align-content: center;
    gap: 6px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    background: transparent;
    padding: 0 10px;
  }

  .menu-button span:not(.sr-only) {
    height: 1px;
    background: var(--white);
    transition: transform 180ms ease;
  }

  .menu-button[aria-expanded="true"] span:first-child {
    transform: translateY(3.5px) rotate(45deg);
  }

  .menu-button[aria-expanded="true"] span:nth-child(2) {
    transform: translateY(-3.5px) rotate(-45deg);
  }

  .mobile-menu {
    width: var(--page);
    margin: 0 auto;
    display: grid;
    gap: 3px;
    max-height: 0;
    overflow: hidden;
    transition:
      max-height 260ms ease,
      padding 260ms ease;
  }

  .mobile-menu.open {
    max-height: 290px;
    padding-bottom: 20px;
  }

  .mobile-menu > a:not(.button) {
    padding: 12px 4px;
    color: rgba(255, 255, 255, 0.8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 14px;
  }

  .mobile-menu .button {
    margin-top: 8px;
  }

  .hero-grid {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 25px;
    padding-top: 80px;
    text-align: center;
  }

  .hero h1,
  .hero-lede {
    margin-inline: auto;
  }

  .hero-actions,
  .hero-note {
    justify-content: center;
  }

  .product-stage {
    min-height: 610px;
  }

  .revenue-chip {
    left: 16%;
  }

  .live-chip {
    right: 15%;
  }

  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
    padding-block: 18px;
  }

  .proof-grid > div,
  .proof-grid > div:first-child {
    min-height: 72px;
    padding: 15px 24px;
    border-left: 1px solid rgba(255, 255, 255, 0.13);
  }

  .proof-grid > div:nth-child(odd) {
    border-left: 0;
  }

  .surface-panel {
    grid-template-columns: 1fr;
    gap: 55px;
    padding: 50px;
  }

  .experience-gallery {
    gap: 18px;
  }

  .experience-device {
    width: 205px;
  }

  .featured-device {
    width: 235px;
  }

  .integration-visual {
    min-height: 370px;
    transform: none;
  }

  .split-heading,
  .integration-grid,
  .cta-inner {
    grid-template-columns: 1fr;
  }

  .split-heading {
    gap: 25px;
  }

  .split-heading > p {
    max-width: 600px;
  }

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

  .integration-grid {
    gap: 65px;
  }

  .cta-inner {
    min-height: 460px;
    justify-items: start;
    align-content: center;
    gap: 35px;
  }

  .cta-actions {
    width: 100%;
    max-width: 420px;
    grid-template-columns: 1fr 1fr;
  }

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

  .footer-grid p {
    display: none;
  }
}

@media (max-width: 640px) {
  :root {
    --page: calc(100% - 30px);
    --radius-lg: 24px;
  }

  html {
    scroll-padding-top: calc(70px + env(safe-area-inset-top));
  }

  body {
    padding-bottom: calc(72px + env(safe-area-inset-bottom));
  }

  .nav-shell {
    height: 66px;
  }

  .site-header {
    padding-top: env(safe-area-inset-top);
  }

  .brand {
    min-height: 44px;
    font-size: 17px;
  }

  .brand-mark {
    width: 30px;
    height: 30px;
  }

  .nav-actions {
    gap: 12px;
  }

  .language-toggle {
    min-height: 44px;
    gap: 5px;
  }

  .menu-button {
    width: 44px;
    height: 44px;
  }

  .mobile-menu > a:not(.button) {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding-block: 10px;
  }

  .toggle-track {
    width: 29px;
  }

  html[lang="zh-CN"] .toggle-track span {
    transform: translateX(11px);
  }

  .hero {
    min-height: auto;
    padding-top: calc(66px + env(safe-area-inset-top));
  }

  .hero-grid {
    padding: 62px 0 18px;
    text-align: left;
  }

  .hero h1 {
    margin-top: 17px;
    font-size: clamp(46px, 14vw, 62px);
    line-height: 0.99;
  }

  html[lang="zh-CN"] .hero h1 {
    font-size: clamp(42px, 12.5vw, 56px);
    line-height: 1.08;
    letter-spacing: -0.06em;
  }

  .hero-lede {
    margin-top: 22px;
    font-size: 15px;
    line-height: 1.66;
  }

  .hero-actions {
    justify-content: stretch;
    display: grid;
    grid-template-columns: 1fr;
    margin-top: 27px;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-note {
    justify-content: flex-start;
    line-height: 1.5;
  }

  .product-stage {
    min-height: 510px;
    margin-inline: -15px;
    overflow: hidden;
  }

  .phone-frame {
    width: 270px;
    height: 510px;
    border-radius: 43px;
    transform: rotate(2deg);
  }

  .phone-screen {
    border-radius: 35px;
  }

  .phone-speaker {
    top: 17px;
  }

  .preview-header {
    padding-top: 48px;
  }

  .preview-promo {
    height: 72px;
  }

  .offer-card {
    grid-template-columns: 37px 1fr auto;
  }

  .offer-art {
    width: 37px;
    height: 37px;
  }

  .revenue-chip {
    left: 4px;
    bottom: 75px;
  }

  .live-chip {
    top: 33px;
    right: 3px;
  }

  .proof-grid {
    padding-block: 12px;
  }

  .proof-grid > div,
  .proof-grid > div:first-child {
    padding: 14px 13px;
  }

  .proof-grid strong {
    font-size: 25px;
  }

  .proof-grid span {
    max-width: 120px;
    font-size: 9px;
    line-height: 1.4;
  }

  .section {
    padding-block: 82px;
  }

  .section-heading.centered {
    text-align: left;
  }

  .section-heading h2,
  .integration-copy h2 {
    font-size: 43px;
  }

  html[lang="zh-CN"] .section-heading h2,
  html[lang="zh-CN"] .integration-copy h2 {
    font-size: 39px;
    line-height: 1.1;
  }

  .section-heading > p {
    font-size: 14px;
  }

  .surface-tabs {
    width: 100%;
    margin-top: 35px;
  }

  .surface-tab {
    min-width: 0;
    width: 50%;
    padding: 11px 10px;
  }

  .tab-icon {
    width: 34px;
    height: 34px;
  }

  .surface-tab strong {
    font-size: 11px;
  }

  .surface-tab small {
    display: none;
  }

  .surface-panel {
    padding: 30px 22px 38px;
    gap: 42px;
  }

  .experience-section {
    padding-bottom: 72px;
  }

  .experience-context {
    width: 100%;
    justify-content: center;
    gap: 8px 16px;
    flex-wrap: wrap;
    border-radius: 18px;
    padding: 12px 10px;
  }

  .experience-context > span {
    font-size: 9px;
  }

  .experience-gallery {
    width: calc(100% + 30px);
    min-height: 570px;
    justify-content: flex-start;
    gap: 16px;
    margin-left: -15px;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: 32px;
    padding: 24px 32px 20px;
    scrollbar-width: none;
  }

  .experience-gallery::-webkit-scrollbar {
    display: none;
  }

  .experience-device,
  .featured-device {
    width: 250px;
    min-width: 250px;
    scroll-snap-align: center;
    transform: none;
  }

  .experience-device:hover {
    transform: none;
    filter: none;
  }

  .device-frame {
    border-radius: 34px;
  }

  .swipe-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    color: #6b838f;
  }

  .swipe-hint > span {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #9db2bc;
  }

  .swipe-hint > span:first-child {
    width: 17px;
    border-radius: 8px;
    background: #0b91d0;
  }

  .swipe-hint small {
    margin-left: 7px;
    font-size: 8px;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }

  .asset-lightbox {
    width: calc(100vw - 24px);
    max-height: calc(100vh - 36px);
    max-height: calc(100dvh - 36px);
    padding: 7px;
  }

  .lightbox-content {
    max-height: calc(100vh - 50px);
    max-height: calc(100dvh - 50px);
  }

  .lightbox-close {
    top: 10px;
    right: 10px;
  }

  .surface-copy h3 {
    font-size: 29px;
  }

  .text-link {
    min-height: 44px;
  }

  .category-row button {
    min-height: 44px;
    padding-block: 0;
  }

  .integration-visual {
    min-height: 455px;
  }

  .visual-toolbar {
    gap: 9px;
    padding-inline: 11px;
  }

  .visual-toolbar > strong {
    max-width: 110px;
    text-align: right;
    line-height: 1.3;
  }

  .real-example-stage {
    height: 410px;
  }

  .example-phone-primary {
    width: 195px;
    height: 432px;
    left: 8%;
  }

  .example-phone-secondary {
    width: 128px;
    height: 284px;
    top: 80px;
    right: 2%;
  }

  .integration-visual[data-surface-preview="web"] .example-phone-primary {
    width: 218px;
    height: 482px;
  }

  .integration-badge {
    right: -8px;
  }

  .benefit-grid {
    grid-template-columns: 1fr;
    margin-top: 40px;
  }

  .benefit-card {
    min-height: 290px;
  }

  .benefit-card h3 {
    margin-top: 66px;
  }

  .integration-grid {
    gap: 48px;
  }

  .code-window pre {
    min-height: 300px;
    padding: 35px 24px;
    font-size: 10.5px;
  }

  .code-topbar {
    padding-inline: 14px;
  }

  .cta-inner {
    min-height: 480px;
  }

  .cta-inner h2 {
    font-size: 46px;
  }

  html[lang="zh-CN"] .cta-inner h2 {
    font-size: 42px;
    line-height: 1.1;
  }

  .cta-actions {
    grid-template-columns: 1fr;
  }

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

  .footer-links {
    flex-wrap: wrap;
    gap: 4px 20px;
  }

  .footer-links a {
    min-height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
  }

  .mobile-sticky-cta {
    position: fixed;
    z-index: 45;
    left: 0;
    right: 0;
    bottom: 0;
    display: block;
    padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
    background: rgba(7, 27, 43, 0.9);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(16px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(110%);
    transition:
      opacity 220ms ease,
      transform 220ms ease,
      visibility 220ms ease;
  }

  .mobile-sticky-cta.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .mobile-sticky-cta .button {
    width: 100%;
    min-height: 48px;
  }

  .toast {
    bottom: calc(80px + env(safe-area-inset-bottom));
    max-width: calc(100% - 30px);
    white-space: nowrap;
    font-size: 9px;
  }
}

@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;
  }
}