:root {
  --bg: #070a09;
  --panel: rgba(14, 19, 18, 0.78);
  --panel-strong: rgba(18, 25, 23, 0.94);
  --line: rgba(196, 255, 220, 0.16);
  --line-strong: rgba(196, 255, 220, 0.32);
  --text: #edf5f0;
  --muted: #89978f;
  --faint: #5a6960;
  --green: #a7ff5a;
  --green-2: #4ee88f;
  --amber: #ffbd59;
  --shadow: 0 34px 110px rgba(0, 0, 0, 0.46);
  font-family: "Microsoft YaHei UI", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 12%, rgba(167, 255, 90, 0.14), transparent 26%),
    radial-gradient(circle at 88% 6%, rgba(78, 232, 143, 0.12), transparent 30%),
    linear-gradient(180deg, #07100d 0%, #080b0a 42%, #050706 100%);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  left: 50%;
  top: -30vh;
  z-index: 0;
  width: 72vw;
  height: 72vw;
  pointer-events: none;
  background: radial-gradient(circle, rgba(167, 255, 90, 0.12), transparent 56%);
  transform: translateX(-50%);
  filter: blur(8px);
}

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

[hidden] {
  display: none !important;
}

.page-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.42;
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.018) 0 1px, transparent 1px 92px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.012) 0 1px, transparent 1px 88px);
  mask-image: linear-gradient(black, transparent 86%);
}

.launch-strip {
  position: relative;
  z-index: 11;
  width: min(1180px, calc(100vw - 36px));
  margin: 16px auto 0;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  border: 1px solid rgba(167, 255, 90, 0.22);
  background:
    linear-gradient(90deg, rgba(167, 255, 90, 0.1), rgba(78, 232, 143, 0.03)),
    rgba(7, 10, 9, 0.72);
  color: var(--muted);
  padding: 9px 12px;
  font-size: 12px;
  backdrop-filter: blur(18px);
}

.launch-strip span {
  color: #07100b;
  background: linear-gradient(135deg, var(--green), var(--green-2));
  padding: 6px 9px;
  font-weight: 950;
}

.launch-strip strong {
  color: var(--text);
  font-weight: 700;
}

.launch-strip a {
  color: var(--green);
  font-weight: 900;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  width: min(1180px, calc(100vw - 36px));
  margin: 10px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  border: 1px solid var(--line);
  background: rgba(7, 10, 9, 0.76);
  backdrop-filter: blur(20px);
  padding: 12px 14px;
  box-shadow: 0 16px 54px rgba(0, 0, 0, 0.28);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand img {
  width: 42px;
  height: 42px;
  filter: drop-shadow(0 0 18px rgba(167, 255, 90, 0.28));
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 20px;
  line-height: 1;
}

.brand small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 13px;
}

.nav-links a:hover {
  color: var(--green);
}

.header-cta,
.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 1px solid rgba(167, 255, 90, 0.34);
  padding: 0 18px;
  font-size: 13px;
  font-weight: 900;
  transition: transform 180ms ease, filter 180ms ease, border-color 180ms ease;
}

.header-cta,
.primary-button {
  color: #07100b;
  border: 0;
  background: linear-gradient(135deg, var(--green), var(--green-2));
  box-shadow: 0 14px 38px rgba(78, 232, 143, 0.2);
}

.secondary-button {
  color: var(--green);
  background: rgba(167, 255, 90, 0.07);
}

.purchase-button {
  border-color: rgba(167, 255, 90, 0.42);
  color: #d9ffc0;
  background: linear-gradient(135deg, rgba(167, 255, 90, 0.13), rgba(78, 232, 143, 0.09));
}

.support-button {
  border-color: rgba(255, 199, 89, 0.34);
  color: #ffd889;
  background: rgba(255, 199, 89, 0.07);
}

.header-cta:hover,
.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

main {
  position: relative;
  z-index: 1;
}

.hero-section {
  width: min(1180px, calc(100vw - 36px));
  margin: 72px auto 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 1fr);
  align-items: center;
  gap: 62px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--green);
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.18em;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1,
h2,
h3 {
  margin: 0;
}

h1 {
  max-width: 780px;
  font-size: clamp(48px, 6vw, 84px);
  line-height: 1.02;
  letter-spacing: -0.058em;
}

.hero-copy h1 span {
  display: block;
}

.hero-copy h1 span:last-child {
  color: #f4fff0;
  text-shadow: 0 0 36px rgba(167, 255, 90, 0.14);
}

h2 {
  font-size: clamp(34px, 4vw, 62px);
  line-height: 0.95;
  letter-spacing: -0.055em;
}

h3 {
  font-size: 22px;
  letter-spacing: -0.02em;
}

.hero-lede {
  max-width: 660px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.76;
}

.hero-actions,
.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

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

.hero-meta span {
  border: 1px solid var(--line);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.026);
  padding: 9px 11px;
  font-size: 12px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 690px;
  margin-top: 40px;
}

.hero-stats div {
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, rgba(167, 255, 90, 0.07), transparent 54%),
    rgba(255, 255, 255, 0.024);
  min-height: 126px;
  padding: 22px 20px;
}

.hero-stats strong {
  display: block;
  color: var(--green);
  font-size: 44px;
  line-height: 0.92;
  letter-spacing: -0.06em;
}

.hero-stats span {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.hero-product {
  min-height: 620px;
  display: grid;
  place-items: center;
}

.orbital-panel {
  position: relative;
  width: min(560px, 100%);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}

.orbital-rings {
  position: absolute;
  inset: 0;
  transform: rotate(45deg);
}

.orbital-rings span {
  position: absolute;
  inset: 8%;
  border: 1px solid rgba(167, 255, 90, 0.16);
  animation: breathe 4200ms ease-in-out infinite;
}

.orbital-rings span:nth-child(2) {
  inset: 20%;
  animation-delay: 300ms;
}

.orbital-rings span:nth-child(3) {
  inset: 32%;
  animation-delay: 600ms;
}

.product-window {
  position: relative;
  width: min(520px, 92vw);
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(145deg, rgba(167, 255, 90, 0.09), transparent 45%),
    rgba(9, 13, 12, 0.9);
  box-shadow: var(--shadow);
  padding: 20px;
  backdrop-filter: blur(24px);
  transform: perspective(900px) rotateY(-7deg) rotateX(2deg);
}

.window-top,
.window-brand,
.metrics-grid div,
.version-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.window-brand {
  justify-content: flex-start;
  gap: 10px;
}

.window-brand img {
  width: 34px;
  height: 34px;
}

.window-top span {
  color: var(--green);
  font-size: 11px;
  font-weight: 900;
}

.boost-card {
  margin-top: 22px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.24);
  padding: 34px 26px;
  text-align: center;
}

.boost-card small {
  color: var(--green);
  font-weight: 900;
}

.boost-card strong {
  display: block;
  margin-top: 10px;
  font-size: 34px;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.boost-card button {
  width: 100%;
  height: 58px;
  margin-top: 26px;
  border: 0;
  color: #06120a;
  background: linear-gradient(135deg, var(--green), var(--green-2));
  font: inherit;
  font-weight: 950;
}

.signal-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-top: 12px;
}

.signal-row span {
  height: 5px;
  background: linear-gradient(90deg, rgba(167, 255, 90, 0.12), var(--green), rgba(78, 232, 143, 0.22));
  transform-origin: left;
  animation: signalPulse 1600ms ease-in-out infinite;
}

.signal-row span:nth-child(2) {
  animation-delay: 120ms;
}

.signal-row span:nth-child(3) {
  animation-delay: 240ms;
}

.signal-row span:nth-child(4) {
  animation-delay: 360ms;
}

.signal-row span:nth-child(5) {
  animation-delay: 480ms;
}

.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
}

.metrics-grid div,
.diagnostic-board div {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.026);
  padding: 14px;
}

.metrics-grid span,
.diagnostic-board span {
  color: var(--muted);
  font-size: 12px;
}

.metrics-grid b,
.diagnostic-board b {
  color: var(--text);
  font-size: 13px;
}

.section-block,
.split-section,
.problem-section,
.audience-section,
.pricing-section,
.download-section,
.site-footer {
  width: min(1180px, calc(100vw - 36px));
  margin: 120px auto 0;
}

.problem-section {
  display: grid;
  grid-template-columns: 1fr 74px 1fr;
  gap: 18px;
  align-items: stretch;
}

.problem-card {
  min-height: 210px;
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, rgba(255, 189, 89, 0.09), transparent 58%),
    var(--panel);
  padding: 26px;
}

.problem-card.solution {
  background:
    linear-gradient(145deg, rgba(167, 255, 90, 0.12), transparent 58%),
    var(--panel-strong);
}

.problem-card span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
}

.problem-card strong {
  display: block;
  margin-top: 22px;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.04;
  letter-spacing: -0.05em;
}

.problem-arrow {
  position: relative;
  align-self: center;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
}

.problem-arrow::after {
  content: "";
  position: absolute;
  right: 2px;
  top: 50%;
  width: 13px;
  height: 13px;
  border-top: 2px solid var(--green);
  border-right: 2px solid var(--green);
  transform: translateY(-50%) rotate(45deg);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(260px, 0.42fr);
  gap: 34px;
  align-items: end;
}

.section-heading .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: -20px;
}

.section-heading span {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.feature-grid,
.protect-grid,
.audience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 36px;
}

.feature-grid article,
.audience-grid article,
.protect-grid div,
.pricing-card,
.download-panel,
details {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.24);
}

.feature-grid article {
  min-height: 248px;
  padding: 22px;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.feature-grid article:hover,
.audience-grid article:hover,
.protect-grid div:hover {
  transform: translateY(-4px);
  border-color: rgba(167, 255, 90, 0.34);
  background:
    linear-gradient(145deg, rgba(167, 255, 90, 0.08), transparent 54%),
    var(--panel);
}

.feature-grid small {
  color: var(--green);
  font-weight: 950;
}

.feature-grid h3,
.audience-grid h3,
.protect-grid h3 {
  margin-top: 34px;
}

.feature-grid p,
.audience-grid p,
.protect-grid p,
.pricing-section p,
.download-panel p,
details p,
.diagnostic-copy p {
  color: var(--muted);
  line-height: 1.75;
}

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

.audience-grid article {
  min-height: 260px;
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, rgba(167, 255, 90, 0.08), transparent 58%),
    var(--panel);
  padding: 24px;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.audience-grid b {
  color: #07100b;
  background: linear-gradient(135deg, var(--green), var(--green-2));
  padding: 7px 9px;
  font-size: 12px;
}

.split-section {
  display: grid;
  grid-template-columns: 0.82fr 1fr;
  gap: 28px;
  align-items: center;
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(115deg, rgba(167, 255, 90, 0.08), transparent 48%),
    rgba(255, 255, 255, 0.024);
  padding: 34px;
}

.diagnostic-board {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.diagnostic-board div {
  min-height: 96px;
  display: grid;
  align-content: space-between;
}

.diagnostic-board b {
  display: block;
  margin-top: 18px;
  color: var(--green);
  font-size: 18px;
}

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

.protect-grid div {
  padding: 24px;
}

.pricing-section {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 40px;
  align-items: center;
}

.pricing-card {
  padding: 26px;
  background:
    linear-gradient(160deg, rgba(167, 255, 90, 0.12), transparent 48%),
    var(--panel-strong);
}

.pricing-card span {
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
}

.pricing-card strong {
  display: block;
  margin-top: 14px;
  color: var(--green);
  font-size: 76px;
  line-height: 0.9;
  letter-spacing: -0.06em;
}

.pricing-card ul,
.update-notes {
  display: grid;
  gap: 12px;
  margin: 24px 0;
  padding: 0;
  list-style: none;
}

.pricing-card li,
.update-notes li {
  border-top: 1px solid var(--line);
  color: var(--text);
  padding-top: 12px;
}

.download-panel {
  position: relative;
  overflow: hidden;
  min-height: 360px;
  display: grid;
  align-content: center;
  padding: 42px;
  background:
    radial-gradient(circle at 76% 42%, rgba(167, 255, 90, 0.16), transparent 26%),
    linear-gradient(140deg, rgba(167, 255, 90, 0.08), transparent 46%),
    var(--panel-strong);
}

.download-panel::after {
  content: "";
  position: absolute;
  right: 8%;
  top: 50%;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(167, 255, 90, 0.16);
  transform: translateY(-50%) rotate(45deg);
}

.release-card {
  position: relative;
  z-index: 1;
  width: min(420px, 100%);
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.22);
  margin-top: 24px;
  padding: 16px;
}

.release-card span {
  color: var(--muted);
  font-size: 12px;
}

.release-card strong {
  display: block;
  margin-top: 8px;
  color: var(--green);
  font-size: 22px;
}

.release-card p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.release-checksum {
  display: block;
  margin-top: 12px;
  border: 1px solid rgba(167, 255, 90, 0.2);
  background: rgba(0, 0, 0, 0.24);
  color: var(--green);
  padding: 9px 10px;
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.checksum-copy-button {
  margin-top: 10px;
  border: 1px solid rgba(167, 255, 90, 0.24);
  background: rgba(167, 255, 90, 0.08);
  color: var(--green);
  padding: 9px 12px;
  font: inherit;
  font-size: 12px;
  font-weight: 900;
  cursor: pointer;
}

.checksum-copy-button:hover {
  border-color: rgba(167, 255, 90, 0.48);
  background: rgba(167, 255, 90, 0.12);
}

.release-notes {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.release-notes li {
  border-top: 1px solid rgba(196, 255, 220, 0.12);
  color: var(--text);
  padding-top: 8px;
  font-size: 13px;
  line-height: 1.55;
}

.faq-section {
  display: grid;
  gap: 12px;
}

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

details {
  padding: 20px 22px;
}

summary {
  cursor: pointer;
  color: var(--text);
  font-weight: 900;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 28px 0 44px;
  font-size: 13px;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 640ms ease, transform 640ms ease;
}

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

@keyframes breathe {
  0%,
  100% {
    opacity: 0.42;
    transform: scale(0.96);
  }
  50% {
    opacity: 0.9;
    transform: scale(1.04);
  }
}

@keyframes signalPulse {
  0%,
  100% {
    opacity: 0.36;
    transform: scaleX(0.58);
  }
  50% {
    opacity: 1;
    transform: scaleX(1);
  }
}

@media (max-width: 980px) {
  .launch-strip,
  .site-header,
  .hero-section,
  .section-block,
  .split-section,
  .pricing-section,
  .download-section,
  .site-footer {
    width: min(100vw - 24px, 720px);
  }

  .site-header,
  .launch-strip,
  .hero-section,
  .section-heading,
  .split-section,
  .problem-section,
  .pricing-section {
    grid-template-columns: 1fr;
  }

  .site-header {
    position: relative;
    align-items: flex-start;
  }

  .nav-links {
    display: none;
  }

  .hero-section {
    margin-top: 48px;
  }

  .hero-product {
    min-height: auto;
  }

  .product-window {
    transform: none;
  }

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

  .section-heading .eyebrow {
    margin-bottom: 0;
  }

  .pricing-card {
    max-width: 420px;
  }

  .problem-arrow {
    height: 54px;
    width: 1px;
    justify-self: center;
  }

  .problem-arrow::after {
    right: auto;
    left: 50%;
    top: auto;
    bottom: 4px;
    transform: translateX(-50%) rotate(135deg);
  }
}

@media (max-width: 620px) {
  .site-header {
    flex-direction: column;
  }

  h1 {
    font-size: 44px;
    line-height: 1.06;
    letter-spacing: -0.045em;
  }

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

  .metrics-grid,
  .hero-stats,
  .diagnostic-board {
    grid-template-columns: 1fr;
  }

  .split-section,
  .download-panel {
    padding: 24px;
  }

  .site-footer {
    display: grid;
    gap: 8px;
  }
}