:root {
  color-scheme: dark;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif;
  background: #101314;
  color: #f6efdf;
  font-size: 16px;
  --bg: #101314;
  --panel: rgba(20, 26, 28, 0.86);
  --panel-strong: rgba(28, 35, 36, 0.94);
  --line: rgba(222, 178, 98, 0.2);
  --gold: #e6b85a;
  --gold-soft: #f3d28d;
  --green: #64d0a0;
  --teal: #72d6cb;
  --muted: #c4c4b8;
  --dim: #8f9b9a;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(180deg, rgba(230, 184, 90, 0.08), transparent 28rem),
    linear-gradient(135deg, #111414 0%, #151d1d 42%, #0d1012 100%);
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  padding: 14px clamp(18px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background: rgba(16, 19, 20, 0.9);
  backdrop-filter: blur(18px);
}

.brand,
.site-nav,
.hero-actions,
.trust-strip,
.support-links,
.capability-row {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(246, 209, 135, 0.78);
  border-radius: 8px;
  background: linear-gradient(135deg, #d6aa54, #7b5a2f);
  box-shadow: 0 0 24px rgba(230, 184, 90, 0.22);
  color: #17120b;
  font-size: 14px;
}

.site-nav {
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}

.site-nav a,
.text-link,
.header-cta {
  text-decoration: none;
}

.site-nav a:hover,
.text-link:hover,
.header-cta:hover {
  color: var(--gold-soft);
}

.header-cta {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border: 1px solid rgba(100, 208, 160, 0.34);
  border-radius: 8px;
  color: #d8fff0;
  background: rgba(69, 151, 116, 0.18);
  font-weight: 800;
  white-space: nowrap;
}

.hero {
  width: min(1320px, calc(100% - 40px));
  min-height: min(760px, 86svh);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(460px, 1.18fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
  padding: 66px 0 54px;
}

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

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 740px;
  margin-bottom: 18px;
  font-size: clamp(3rem, 5.5vw, 5.35rem);
  line-height: 1.02;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(2rem, 3.2vw, 3.15rem);
  line-height: 1.12;
}

h3 {
  margin-bottom: 10px;
  color: var(--gold-soft);
  font-size: 1.18rem;
}

p {
  color: var(--muted);
  line-height: 1.8;
}

.hero-copy {
  max-width: 700px;
  color: #ded8c9;
  font-size: 18px;
}

.hero-actions {
  gap: 12px;
  flex-wrap: wrap;
  margin: 28px 0 18px;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid rgba(230, 184, 90, 0.54);
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.button.primary {
  background: linear-gradient(135deg, #e9bb5d, #b97937);
  color: #181109;
}

.button.secondary {
  background: rgba(21, 27, 29, 0.78);
  color: #f6efdf;
}

.trust-strip,
.capability-row {
  gap: 10px;
  flex-wrap: wrap;
}

.trust-strip span,
.privacy-list span,
.capability-row span {
  border: 1px solid rgba(114, 214, 203, 0.24);
  border-radius: 8px;
  padding: 8px 10px;
  color: #d2fff6;
  background: rgba(36, 91, 84, 0.26);
  font-size: 13px;
}

.product-shot {
  position: relative;
  margin: 0;
}

.launcher-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(230, 184, 90, 0.35);
  border-radius: 8px;
  background: #0f1415;
  box-shadow: var(--shadow);
}

.launcher-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.08), transparent 34%),
    radial-gradient(circle at 76% 18%, rgba(230, 184, 90, 0.2), transparent 16rem);
}

.launcher-frame::after {
  content: "";
  display: none;
  grid-template-columns: 90px 1fr 260px;
}

.launcher-frame img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.product-shot figcaption {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 2px 0;
  color: var(--dim);
  font-size: 13px;
}

.product-shot figcaption strong {
  color: var(--gold-soft);
}

.shot-badge {
  position: absolute;
  display: grid;
  gap: 4px;
  min-width: 154px;
  padding: 12px 14px;
  border: 1px solid rgba(100, 208, 160, 0.32);
  border-radius: 8px;
  background: rgba(19, 29, 29, 0.92);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.28);
}

.shot-badge span {
  color: var(--dim);
  font-size: 12px;
}

.shot-badge strong {
  color: #d8fff0;
}

.shot-badge-primary {
  top: 26px;
  right: -18px;
}

.shot-badge-secondary {
  left: -22px;
  bottom: 54px;
}

.section {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 76px 0;
  border-top: 1px solid var(--line);
}

.section-grid,
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 430px;
  gap: 38px;
  align-items: start;
}

.section-copy p,
.section-heading p {
  max-width: 760px;
}

.download-card,
.feature-grid article,
.feature-band article,
.update-panel,
.support-links a,
.account-status-card,
.account-action-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.download-card {
  display: grid;
  gap: 18px;
  padding: 24px;
  background:
    linear-gradient(150deg, rgba(29, 38, 38, 0.96), rgba(14, 18, 20, 0.9)),
    radial-gradient(circle at 100% 0%, rgba(100, 208, 160, 0.12), transparent 12rem);
}

.download-card-head {
  display: flex;
  gap: 12px;
  align-items: start;
}

.download-card-head p {
  margin-bottom: 0;
}

.status-dot {
  width: 12px;
  height: 12px;
  margin-top: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 22px rgba(100, 208, 160, 0.72);
}

dl {
  display: grid;
  gap: 10px;
  margin: 4px 0 0;
}

dl div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: #d8d0c0;
}

dt {
  color: var(--dim);
}

dd {
  margin: 0;
  text-align: right;
  word-break: break-word;
}

.launch-readiness {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid rgba(114, 214, 203, 0.18);
  border-radius: 8px;
  background: rgba(9, 13, 15, 0.48);
}

.launch-readiness[data-state="ready"],
.launch-readiness[data-state="candidate-ready"] {
  border-color: rgba(100, 208, 160, 0.44);
  background: rgba(53, 108, 85, 0.18);
}

.launch-readiness strong {
  color: var(--gold-soft);
  font-size: 13px;
}

.launch-readiness ul {
  display: grid;
  gap: 6px;
  margin: 0;
  padding-left: 18px;
  color: #cfc6b5;
  font-size: 12px;
  line-height: 1.6;
}

.feature-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-band article {
  padding: 22px;
}

.feature-band article > span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--teal);
  font-weight: 900;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 26px 0 20px;
}

.feature-grid article {
  padding: 22px;
}

.metadata-note {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  margin: 0 0 12px;
  padding: 0 12px;
  border: 1px solid rgba(114, 214, 203, 0.2);
  border-radius: 8px;
  color: #d2fff6;
  background: rgba(36, 91, 84, 0.22);
  font-size: 13px;
}

.text-link {
  display: inline-flex;
  margin-left: 10px;
  color: var(--gold-soft);
  font-weight: 800;
}

.privacy-list {
  display: grid;
  gap: 12px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.steps li {
  min-height: 112px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: #ede0c8;
  counter-increment: steps;
}

.steps li::before {
  content: counter(steps, decimal-leading-zero);
  display: block;
  margin-bottom: 14px;
  color: var(--teal);
  font-weight: 900;
}

.update-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 28px;
  padding: 28px;
}

.update-panel ul {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.update-panel li {
  display: grid;
  gap: 6px;
  padding: 14px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
}

.update-panel span {
  color: #cfc6b5;
}

.support-links {
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.support-links a {
  padding: 16px 18px;
  text-decoration: none;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px clamp(20px, 5vw, 72px);
  color: var(--dim);
  border-top: 1px solid var(--line);
}

.account-hero {
  width: min(1160px, calc(100% - 40px));
  min-height: 520px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 34px;
  align-items: center;
  padding: 96px 0 58px;
}

.account-status-card {
  display: grid;
  gap: 12px;
  padding: 26px;
  background:
    linear-gradient(150deg, rgba(28, 36, 37, 0.94), rgba(13, 18, 20, 0.84)),
    radial-gradient(circle at 22% 18%, rgba(114, 214, 203, 0.14), transparent 12rem);
}

.account-status-list {
  display: grid;
  gap: 10px;
  margin: 8px 0 0;
}

.account-status-list div {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}

.account-status-list dt {
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
}

.account-status-list dd {
  margin: 0;
  color: #f6efdf;
}

.account-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.account-action-card {
  display: grid;
  gap: 16px;
  align-content: start;
  padding: 22px;
}

.account-form {
  display: grid;
  gap: 14px;
}

.account-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.account-form input {
  width: 100%;
  min-height: 44px;
  border: 1px solid rgba(114, 214, 203, 0.24);
  border-radius: 8px;
  padding: 0 12px;
  color: #f6efdf;
  background: rgba(9, 13, 15, 0.64);
  font: inherit;
}

.account-form input:focus {
  outline: 2px solid rgba(230, 184, 90, 0.42);
  outline-offset: 2px;
}

.account-step-list,
.account-action-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.7;
}

.account-action-card .button {
  justify-self: start;
  margin-top: 4px;
}

.account-session-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 16px;
}

.recovery-code-list {
  min-height: 132px;
  margin: 0;
  border: 1px solid rgba(114, 214, 203, 0.2);
  border-radius: 8px;
  padding: 14px;
  color: #f6efdf;
  background: rgba(9, 13, 15, 0.68);
  font: 800 13px/1.7 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.account-boundary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 34px;
  align-items: start;
}

@media (max-width: 1100px) {
  .hero,
  .section-grid,
  .split,
  .update-panel,
  .account-hero,
  .account-boundary {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 48px;
  }

  .product-shot {
    width: min(880px, 100%);
  }

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

@media (max-width: 900px) {
  .feature-grid,
  .steps,
  .account-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  .site-header {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .header-cta {
    justify-self: start;
  }

  .hero,
  .section,
  .account-hero {
    width: min(100% - 32px, 1160px);
  }

  .feature-grid,
  .feature-band,
  .steps,
  .account-grid {
    grid-template-columns: 1fr;
  }

  .product-shot figcaption,
  .site-footer {
    flex-direction: column;
  }

  .shot-badge {
    position: static;
    margin-top: 10px;
  }
}

@media (max-width: 520px) {
  h1 {
    font-size: 2.35rem;
    line-height: 1.12;
  }

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

  dl div {
    display: grid;
    gap: 4px;
  }

  dd {
    text-align: left;
  }
}