:root {
  --bg: #03070d;
  --panel: rgba(9, 24, 34, 0.76);
  --panel-strong: rgba(13, 34, 45, 0.92);
  --line: rgba(167, 255, 26, 0.28);
  --line-blue: rgba(26, 221, 255, 0.34);
  --text: #f7fbff;
  --muted: #9db1bf;
  --lime: #b9ff18;
  --green: #4cff63;
  --cyan: #2be9ff;
  --yellow: #ffd73d;
  --orange: #ff9d2f;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.48);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 52% 86%, rgba(34, 177, 255, 0.36), transparent 22%),
    radial-gradient(circle at 74% 20%, rgba(185, 255, 24, 0.18), transparent 24%),
    linear-gradient(180deg, #020409 0%, #061421 54%, #03070d 100%);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  letter-spacing: 0;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    linear-gradient(120deg, transparent 0 16%, rgba(61, 255, 95, 0.2) 16.4%, transparent 18% 100%),
    linear-gradient(124deg, transparent 0 48%, rgba(43, 233, 255, 0.16) 48.4%, transparent 50% 100%),
    linear-gradient(118deg, transparent 0 70%, rgba(255, 215, 61, 0.18) 70.3%, transparent 72% 100%);
  opacity: 0.9;
}

body::after {
  content: "";
  position: fixed;
  inset: auto -10% -16% -10%;
  z-index: -1;
  height: 42vh;
  pointer-events: none;
  background:
    radial-gradient(ellipse at center, rgba(43, 233, 255, 0.42), transparent 56%),
    linear-gradient(180deg, transparent, rgba(43, 233, 255, 0.16));
  border-radius: 50% 50% 0 0;
  filter: blur(1px);
}

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

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

button {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  width: min(1320px, calc(100% - 32px));
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin: 0 auto;
  padding: 14px 0;
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: fit-content;
  font-weight: 950;
}

.brand img {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  box-shadow: 0 0 34px rgba(185, 255, 24, 0.36);
}

.brand span {
  font-size: 30px;
  line-height: 1;
  text-shadow: 0 0 24px rgba(255, 255, 255, 0.18);
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 3vw, 46px);
  color: rgba(247, 251, 255, 0.84);
  font-size: 15px;
  font-weight: 800;
}

.nav-links a {
  position: relative;
  padding: 12px 0;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 3px;
  background: linear-gradient(90deg, var(--lime), var(--cyan));
  border-radius: 999px;
  opacity: 0;
  transform: translateY(6px);
  transition: 180ms ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  opacity: 1;
  transform: translateY(0);
}

.header-cta {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  color: #051108;
  background: linear-gradient(135deg, var(--lime), var(--cyan));
  border-radius: 999px;
  font-size: 14px;
  font-weight: 950;
  box-shadow: 0 0 28px rgba(43, 233, 255, 0.28);
}

.hero {
  position: relative;
  width: min(1320px, calc(100% - 32px));
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(440px, 0.92fr) minmax(500px, 1.08fr);
  align-items: center;
  gap: 34px;
  margin: 0 auto;
  padding: 28px 0 40px;
}

.meteor-field {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.meteor {
  position: absolute;
  width: 210px;
  height: 3px;
  border-radius: 999px;
  transform: rotate(-22deg);
  background: linear-gradient(90deg, transparent, currentColor 18%, transparent);
  filter: drop-shadow(0 0 14px currentColor);
  animation: drift 7s linear infinite;
}

.meteor-a {
  top: 10%;
  left: 54%;
  color: var(--green);
}

.meteor-b {
  top: 23%;
  left: 72%;
  color: var(--cyan);
  animation-delay: -1.8s;
}

.meteor-c {
  top: 48%;
  left: 60%;
  color: var(--yellow);
  animation-delay: -3.1s;
}

.meteor-d {
  top: 62%;
  left: 4%;
  color: var(--green);
  animation-delay: -4.4s;
}

.meteor-e {
  top: 78%;
  left: 34%;
  color: var(--cyan);
  animation-delay: -5.6s;
}

@keyframes drift {
  0% {
    opacity: 0;
    transform: translate3d(180px, -80px, 0) rotate(-22deg);
  }
  18%,
  72% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate3d(-360px, 160px, 0) rotate(-22deg);
  }
}

.hero-copy {
  position: relative;
  z-index: 2;
  padding-top: 22px;
}

.pill {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  margin: 0 0 18px;
  padding: 0 18px;
  color: var(--lime);
  background: rgba(185, 255, 24, 0.1);
  border: 1px solid rgba(185, 255, 24, 0.62);
  border-radius: 999px;
  box-shadow: inset 0 0 18px rgba(185, 255, 24, 0.08), 0 0 22px rgba(185, 255, 24, 0.14);
  font-size: 15px;
  font-weight: 950;
}

.hero h1 {
  max-width: 650px;
  margin: 0;
  font-size: clamp(58px, 7vw, 100px);
  line-height: 0.98;
  font-weight: 950;
  color: #ffffff;
  text-shadow: 0 10px 36px rgba(0, 0, 0, 0.5);
}

.hero h1::first-letter {
  letter-spacing: 0;
}

.hero h1 span,
.hero h1 strong {
  color: var(--lime);
}

.hero-lede {
  max-width: 650px;
  margin: 24px 0 0;
  color: rgba(247, 251, 255, 0.82);
  font-size: 22px;
  line-height: 1.7;
  font-weight: 750;
}

.download-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  max-width: 610px;
  margin-top: 34px;
}

.download-card {
  position: relative;
  min-height: 92px;
  display: grid;
  grid-template-columns: 84px 1fr;
  column-gap: 16px;
  align-items: center;
  padding: 18px 22px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  box-shadow: var(--shadow);
  isolation: isolate;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

.download-card::before {
  content: "";
  position: absolute;
  inset: 2px;
  z-index: -1;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.44), transparent 42%);
  opacity: 0.38;
}

.download-card:hover,
.download-card:focus-visible {
  transform: translateY(-5px) scale(1.015);
  border-color: rgba(255, 255, 255, 0.36);
}

.download-card.ios {
  color: #051108;
  background: linear-gradient(135deg, var(--lime) 0%, #cfff31 48%, #7eff2d 100%);
  box-shadow: 0 22px 70px rgba(185, 255, 24, 0.32);
}

.download-card.android {
  color: #041216;
  background: linear-gradient(135deg, #23f0ff 0%, #31e8ff 42%, #64ffca 100%);
  box-shadow: 0 22px 70px rgba(43, 233, 255, 0.3);
}

.platform-mark {
  grid-row: span 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 54px;
  padding: 0 14px;
  color: #03070d;
  background: rgba(255, 255, 255, 0.75);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 950;
}

.download-card strong {
  align-self: end;
  font-size: 22px;
  line-height: 1.1;
  font-weight: 950;
}

.download-card small {
  align-self: start;
  margin-top: 4px;
  color: rgba(3, 7, 13, 0.72);
  font-size: 14px;
  font-weight: 800;
}

.trust-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 660px;
  margin-top: 30px;
}

.trust-row span {
  min-height: 74px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 14px 16px;
  color: var(--text);
  background: rgba(8, 28, 35, 0.62);
  border: 1px solid rgba(185, 255, 24, 0.18);
  border-radius: 8px;
  backdrop-filter: blur(18px);
}

.trust-row b {
  font-size: 16px;
}

.trust-row small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
}

.hero-stage {
  position: relative;
  z-index: 2;
  min-height: 620px;
}

.main-phone {
  position: absolute;
  top: 14px;
  left: 50%;
  width: min(335px, 46vw);
  margin: 0;
  transform: translateX(-45%) rotate(8deg);
  filter: drop-shadow(0 36px 58px rgba(0, 0, 0, 0.58));
}

.phone {
  position: relative;
  margin: 0;
  border-radius: 38px;
  padding: 10px;
  background: linear-gradient(145deg, #dce8ff, #263645 35%, #071019 68%, #e6f5ff);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.2),
    0 0 42px rgba(43, 233, 255, 0.18);
}

.phone img {
  width: 100%;
  aspect-ratio: 9 / 19.2;
  object-fit: cover;
  border-radius: 30px;
  background: #081019;
}

.chat-comet {
  position: absolute;
  z-index: 4;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px 7px 8px;
  color: #07100c;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  font-weight: 950;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.28), 0 0 28px currentColor;
  animation: floaty 4.8s ease-in-out infinite;
}

.chat-comet::before {
  content: "";
  position: absolute;
  right: 82%;
  width: 180px;
  height: 20px;
  z-index: -1;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, currentColor);
  filter: blur(4px);
  opacity: 0.72;
}

.chat-comet img {
  width: 34px;
  height: 34px;
  border-radius: 50%;
}

.comet-one {
  top: 118px;
  left: 14px;
  color: var(--lime);
  background: linear-gradient(135deg, #eaff67, #83ff32);
}

.comet-two {
  top: 180px;
  right: 22px;
  color: var(--cyan);
  background: linear-gradient(135deg, #57f1ff, #1bb4db);
  animation-delay: -1s;
}

.comet-three {
  right: 12px;
  bottom: 190px;
  color: #70c8ff;
  background: rgba(22, 62, 92, 0.92);
  color: #e8f8ff;
  border-color: rgba(112, 200, 255, 0.5);
  animation-delay: -2s;
}

.comet-four {
  left: 42px;
  bottom: 230px;
  color: var(--green);
  background: linear-gradient(135deg, #ccff3c, #48ff5a);
  animation-delay: -3s;
}

@keyframes floaty {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(10px, -12px, 0);
  }
}

.feature-band,
.energy-section {
  position: relative;
  width: min(1320px, calc(100% - 32px));
  margin: 0 auto;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
}

.section-heading h2,
.energy-copy h2,
.h5-preview h2 {
  margin: 0;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.15;
  font-weight: 950;
}

.screen-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.screen-item {
  position: relative;
  min-height: 330px;
  margin: 0;
  padding: 22px 22px 0;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(21, 43, 54, 0.92), rgba(8, 22, 31, 0.86));
  border: 1px solid rgba(185, 255, 24, 0.28);
  border-radius: 8px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
}

.screen-item:nth-child(2) {
  border-color: rgba(43, 233, 255, 0.34);
}

.screen-item:nth-child(3) {
  border-color: rgba(255, 215, 61, 0.34);
}

.screen-item:nth-child(4) {
  border-color: rgba(154, 115, 255, 0.34);
}

.screen-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  height: 34px;
  padding: 0 12px;
  color: #06120b;
  background: linear-gradient(135deg, var(--lime), var(--green));
  border-radius: 999px;
  font-size: 13px;
  font-weight: 950;
}

.screen-icon.blue {
  background: linear-gradient(135deg, #32f1ff, #168dff);
}

.screen-icon.yellow {
  background: linear-gradient(135deg, var(--yellow), #ffab2e);
}

.screen-icon.violet {
  color: #fff;
  background: linear-gradient(135deg, #9a73ff, #7445d8);
}

.screen-item figcaption {
  margin: 16px 0 18px;
}

.screen-item strong {
  display: block;
  font-size: 24px;
  line-height: 1.1;
}

.screen-item small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 750;
}

.screen-item img {
  width: min(220px, 100%);
  margin: 0 auto;
  border-radius: 28px 28px 0 0;
  box-shadow: 0 -10px 44px rgba(0, 0, 0, 0.25);
}

.energy-section {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  align-items: center;
  gap: 30px;
  margin-top: 44px;
  margin-bottom: 80px;
  padding: 34px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(10, 32, 43, 0.86), rgba(6, 16, 25, 0.76));
  border: 1px solid rgba(43, 233, 255, 0.22);
  border-radius: 8px;
}

.energy-section::after {
  content: "";
  position: absolute;
  inset: auto -4% -58% 38%;
  height: 260px;
  background: radial-gradient(ellipse at center, rgba(43, 233, 255, 0.45), transparent 68%);
  pointer-events: none;
}

.energy-copy p:last-child {
  max-width: 560px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
  font-weight: 750;
}

.signal-list {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.signal-list span,
.h5-trust span {
  min-height: 72px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #e8fbff;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(185, 255, 24, 0.2);
  border-radius: 8px;
  font-weight: 950;
}

.mobile-download-bar,
.h5-bottom-bar {
  display: none;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 80;
  max-width: calc(100% - 32px);
  padding: 14px 18px;
  color: #031108;
  background: linear-gradient(135deg, var(--lime), var(--cyan));
  border-radius: 999px;
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.4);
  font-weight: 950;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 16px);
  transition: 180ms ease;
}

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

.h5-page {
  min-height: 100vh;
  padding-bottom: 92px;
}

.h5-shell {
  width: min(430px, 100%);
  margin: 0 auto;
  padding: 10px 14px 26px;
}

.h5-topbar {
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.h5-brand img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
}

.h5-brand span {
  font-size: 24px;
}

.menu-button {
  width: 42px;
  height: 42px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  font-size: 24px;
  font-weight: 900;
}

.h5-hero {
  position: relative;
  padding: 28px 0 24px;
  overflow: hidden;
}

.h5-hero h1 {
  max-width: 330px;
  margin: 0;
  font-size: 48px;
  line-height: 1.05;
  font-weight: 950;
}

.h5-hero h1 span {
  color: var(--lime);
}

.h5-hero p:not(.pill) {
  max-width: 340px;
  color: rgba(247, 251, 255, 0.78);
  font-size: 15px;
  line-height: 1.7;
  font-weight: 750;
}

.h5-comets {
  position: absolute;
  inset: 120px 0 auto;
  min-height: 260px;
  pointer-events: none;
}

.h5-comets span {
  position: absolute;
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 13px;
  color: #061108;
  background: linear-gradient(135deg, var(--lime), var(--green));
  border-radius: 999px;
  font-size: 12px;
  font-weight: 950;
  box-shadow: 0 0 28px rgba(185, 255, 24, 0.32);
}

.h5-comets span:nth-child(1) {
  left: 2px;
  top: 18px;
}

.h5-comets span:nth-child(2) {
  right: 0;
  top: 88px;
  color: #eefbff;
  background: rgba(22, 65, 88, 0.94);
}

.h5-comets span:nth-child(3) {
  left: 20px;
  top: 160px;
  background: linear-gradient(135deg, var(--cyan), #45ffa7);
}

.h5-phone {
  width: min(248px, 70vw);
  margin: 28px auto 18px;
  transform: rotate(7deg);
}

.h5-actions {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.h5-actions .download-card {
  min-height: 72px;
  grid-template-columns: 88px 1fr;
}

.h5-preview {
  margin-top: 4px;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.tabs button {
  min-height: 62px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 950;
}

.tabs button.active {
  color: #061108;
  background: linear-gradient(135deg, var(--lime), var(--cyan));
}

.h5-trust {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 20px;
}

.h5-bottom-bar {
  position: fixed;
  left: 50%;
  bottom: 12px;
  z-index: 50;
  width: min(404px, calc(100% - 24px));
  min-height: 68px;
  display: grid;
  grid-template-columns: 36px 1fr auto auto;
  align-items: center;
  gap: 8px;
  padding: 10px;
  color: var(--text);
  background: rgba(5, 15, 23, 0.88);
  border: 1px solid rgba(185, 255, 24, 0.25);
  border-radius: 8px;
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.46);
  backdrop-filter: blur(18px);
  transform: translateX(-50%);
}

.h5-bottom-bar img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}

.h5-bottom-bar span {
  min-width: 0;
  font-size: 13px;
  font-weight: 950;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.h5-bottom-bar a {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  color: #061108;
  background: linear-gradient(135deg, var(--lime), var(--cyan));
  border-radius: 999px;
  font-size: 12px;
  font-weight: 950;
}

@media (max-width: 1060px) {
  .site-header {
    width: min(760px, calc(100% - 28px));
  }

  .nav-links {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    width: min(760px, calc(100% - 28px));
    padding-top: 18px;
  }

  .hero-stage {
    min-height: 520px;
  }

  .main-phone {
    left: 54%;
    width: min(320px, 72vw);
  }

  .feature-band,
  .energy-section {
    width: min(760px, calc(100% - 28px));
  }

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

  .energy-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .site-header,
  .feature-band,
  .energy-section {
    width: calc(100% - 24px);
  }

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

  .brand img {
    width: 42px;
    height: 42px;
  }

  .brand span {
    font-size: 24px;
  }

  .header-cta {
    min-height: 38px;
    padding: 0 14px;
  }

  .hero {
    width: calc(100% - 24px);
    min-height: auto;
  }

  .hero h1 {
    font-size: 48px;
  }

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

  .download-actions,
  .trust-row,
  .screen-grid,
  .signal-list {
    grid-template-columns: 1fr;
  }

  .download-card {
    min-height: 78px;
    grid-template-columns: 90px 1fr;
  }

  .hero-stage {
    min-height: 430px;
  }

  .main-phone {
    top: 32px;
    left: 50%;
    width: min(250px, 74vw);
  }

  .chat-comet {
    font-size: 12px;
  }

  .comet-one {
    left: 0;
    top: 20px;
  }

  .comet-two {
    right: 0;
    top: 82px;
  }

  .comet-three {
    right: 0;
    bottom: 66px;
  }

  .comet-four {
    left: 0;
    bottom: 128px;
  }

  .section-heading {
    display: block;
  }

  .screen-item {
    min-height: 360px;
  }

  .energy-section {
    padding: 24px;
    margin-bottom: 96px;
  }

  .mobile-download-bar {
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: 12px;
    z-index: 52;
    min-height: 66px;
    display: grid;
    grid-template-columns: 36px 1fr auto auto;
    align-items: center;
    gap: 8px;
    padding: 10px;
    background: rgba(5, 15, 23, 0.9);
    border: 1px solid rgba(185, 255, 24, 0.24);
    border-radius: 8px;
    box-shadow: 0 20px 70px rgba(0, 0, 0, 0.48);
    backdrop-filter: blur(18px);
  }

  .mobile-download-bar img {
    width: 36px;
    height: 36px;
    border-radius: 10px;
  }

  .mobile-download-bar span {
    font-weight: 950;
  }

  .mobile-download-bar a {
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 11px;
    color: #061108;
    background: linear-gradient(135deg, var(--lime), var(--cyan));
    border-radius: 999px;
    font-size: 12px;
    font-weight: 950;
  }

  .toast {
    bottom: 88px;
    border-radius: 8px;
  }
}