* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  scroll-behavior: smooth;
}

html.theme-dark {
  --background: #08110c;
  --background-soft: #0b180f;
  --card: #0e1a12;
  --card-elevated: #13251a;
  --border: #223828;
  --foreground: #eff9f1;
  --muted: #91a090;
  --secondary: #17251b;
  --brand: #39c86a;
  --brand-text: #39c86a;
  --brand-foreground: #07100b;
  --signal: #43b8f5;
  --harvest: #f2a51a;
  --danger: #e1492d;
  --halo: rgba(57, 200, 106, 0.16);
}

html.theme-light {
  --background: #f4f1e6;
  --background-soft: #e8efe2;
  --card: #ffffff;
  --card-elevated: #f7fbf4;
  --border: #cfdccf;
  --foreground: #142016;
  --muted: #647163;
  --secondary: #e6eee3;
  --brand: #39c86a;
  --brand-text: #147a3b;
  --brand-foreground: #07100b;
  --signal: #126ba2;
  --harvest: #c46f00;
  --danger: #b63a24;
  --halo: rgba(57, 200, 106, 0.18);
}

body {
  min-height: 100%;
  margin: 0;
  background:
    radial-gradient(circle at 50% -10%, var(--halo) 0, transparent 32rem),
    linear-gradient(180deg, var(--background), var(--background-soft));
  color: var(--foreground);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

button {
  font: inherit;
}

:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--brand) 60%, transparent);
  outline-offset: 3px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 82%, transparent);
  background: color-mix(in srgb, var(--background) 88%, transparent);
  backdrop-filter: blur(18px);
}

.nav-inner {
  width: min(1152px, 100%);
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 0 auto;
  padding: 0 24px;
}

.brand-lockup,
.nav-actions,
.social-link,
.avatar-link,
.nav-pill,
.icon-button {
  display: inline-flex;
  align-items: center;
}

.brand-lockup {
  min-width: 0;
  gap: 10px;
  color: var(--brand-text);
  font-size: 16px;
  font-weight: 820;
}

.brand-mark {
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  justify-content: center;
  border: 1px solid color-mix(in srgb, var(--brand) 52%, transparent);
  border-radius: 50%;
  background: color-mix(in srgb, var(--brand) 14%, transparent);
  color: var(--brand-text);
  font-size: 13px;
}

.brand-sub {
  padding-left: 10px;
  border-left: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  color: var(--muted);
  font-size: 12px;
  font-weight: 760;
}

.nav-actions {
  position: relative;
  justify-content: flex-end;
  gap: 8px;
}

.nav-pill,
.social-link,
.icon-button {
  min-height: 34px;
  border: 1px solid color-mix(in srgb, var(--brand) 34%, var(--border));
  border-radius: 10px;
  background: color-mix(in srgb, var(--brand) 8%, transparent);
  color: color-mix(in srgb, var(--foreground) 82%, var(--brand-text));
  padding: 0 12px;
  font-size: 13px;
  font-weight: 760;
  transition: border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.nav-pill:hover,
.social-link:hover,
.icon-button:hover {
  border-color: color-mix(in srgb, var(--brand) 55%, var(--border));
  background: color-mix(in srgb, var(--brand) 12%, transparent);
  color: var(--brand-text);
}

.social-link {
  gap: 8px;
}

.social-dot {
  width: 18px;
  height: 18px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: var(--foreground);
  color: var(--background);
  font-size: 10px;
  font-weight: 900;
}

.wechat-wrap {
  position: relative;
}

.wechat-button {
  cursor: pointer;
}

.wechat-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 12px);
  width: 204px;
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--brand) 28%, var(--border));
  border-radius: 14px;
  background: color-mix(in srgb, var(--card) 98%, transparent);
  box-shadow: 0 22px 60px color-mix(in srgb, #000 28%, transparent);
  color: var(--foreground);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-4px);
  transition: opacity 160ms ease, transform 160ms ease;
}

.wechat-wrap:hover .wechat-panel,
body.wechat-open .wechat-panel {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.wechat-panel img {
  width: 100%;
  display: block;
  border-radius: 10px;
  background: #fff;
}

.wechat-panel strong,
.wechat-panel span {
  padding: 0 2px;
}

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

.icon-button {
  width: 34px;
  justify-content: center;
  padding: 0;
  cursor: pointer;
}

.theme-dark .sun-icon,
.theme-light .moon-icon {
  display: none;
}

.avatar-link {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  justify-content: center;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--brand) 48%, transparent);
  border-radius: 50%;
  background: color-mix(in srgb, var(--brand) 10%, transparent);
}

.avatar-link img,
.avatar-ring img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

main {
  width: min(1152px, 100%);
  margin: 0 auto;
  padding: 0 24px 56px;
}

.hero {
  min-height: min(720px, calc(100vh - 58px));
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
  gap: 56px;
  align-items: center;
  padding: 72px 0 54px;
}

.hero-copy {
  min-width: 0;
}

.avatar-ring {
  width: 88px;
  height: 88px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--brand) 58%, transparent);
  border-radius: 50%;
  background: color-mix(in srgb, var(--brand) 10%, transparent);
  box-shadow: 0 0 48px color-mix(in srgb, var(--brand) 24%, transparent);
}

.eyebrow {
  margin: 22px 0 10px;
  color: var(--brand-text);
  font-size: 13px;
  font-weight: 820;
}

h1 {
  margin: 0;
  color: var(--brand-text);
  font-size: clamp(56px, 8vw, 96px);
  line-height: 0.92;
  letter-spacing: 0;
  text-shadow: 0 0 80px color-mix(in srgb, var(--brand) 22%, transparent);
}

.hero-subtitle {
  margin: 24px 0 0;
  color: var(--foreground);
  font-size: 26px;
  line-height: 1.25;
  font-weight: 840;
}

.hero-note {
  max-width: 660px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9px;
  padding: 0 18px;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 14px;
  font-weight: 820;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  border-color: color-mix(in srgb, var(--brand) 70%, transparent);
  background: var(--brand);
  color: var(--brand-foreground);
}

.button-secondary {
  border-color: color-mix(in srgb, var(--brand) 45%, var(--border));
  background: transparent;
  color: var(--brand-text);
}

.button-secondary:hover {
  background: color-mix(in srgb, var(--brand) 10%, transparent);
}

.radar-board {
  position: relative;
  min-width: 0;
  min-height: 420px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 22px;
  background:
    linear-gradient(color-mix(in srgb, var(--signal) 10%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--signal) 10%, transparent) 1px, transparent 1px),
    radial-gradient(circle at 48% 46%, color-mix(in srgb, var(--brand) 18%, transparent), transparent 58%),
    radial-gradient(circle at 72% 66%, color-mix(in srgb, var(--signal) 13%, transparent), transparent 30%),
    color-mix(in srgb, var(--card) 94%, transparent);
  background-size: 32px 32px, 32px 32px, auto, auto, auto;
}

.radar-board::before,
.radar-board::after {
  content: "";
  position: absolute;
  inset: 54px;
  border: 1px solid color-mix(in srgb, var(--brand) 30%, transparent);
  border-radius: 50%;
}

.radar-board::after {
  inset: 110px;
  border-color: color-mix(in srgb, var(--signal) 25%, transparent);
}

.radar-sweep {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 180px;
  height: 2px;
  transform-origin: left center;
  background: linear-gradient(90deg, var(--brand), transparent);
  animation: sweep 5.8s linear infinite;
}

@keyframes sweep {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.radar-dot {
  position: absolute;
  z-index: 1;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 24px color-mix(in srgb, var(--brand) 60%, transparent);
}

.radar-dot.signal {
  background: var(--signal);
  box-shadow: 0 0 24px color-mix(in srgb, var(--signal) 60%, transparent);
}

.radar-dot.harvest {
  background: var(--harvest);
  box-shadow: 0 0 24px color-mix(in srgb, var(--harvest) 60%, transparent);
}

.radar-label {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 22px;
  z-index: 2;
  display: grid;
  gap: 6px;
}

.radar-label strong {
  color: var(--foreground);
  font-size: 15px;
}

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

.section {
  margin-top: 72px;
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--card) 94%, transparent);
}

.stat-item {
  min-height: 86px;
  display: grid;
  align-content: center;
  gap: 6px;
  padding: 18px;
  border-right: 1px solid var(--border);
}

.stat-item:last-child {
  border-right: 0;
}

.stat-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 720;
}

.stat-value {
  color: var(--foreground);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 16px;
  font-weight: 850;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(64px, 1fr) auto minmax(64px, 1fr);
  gap: 16px;
  align-items: center;
  margin-bottom: 26px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 760;
}

.section-heading::before,
.section-heading::after {
  content: "";
  height: 1px;
  background: color-mix(in srgb, var(--border) 86%, transparent);
}

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

.card {
  min-width: 0;
  min-height: 176px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--card) 95%, transparent);
  padding: 18px;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--brand) 40%, var(--border));
  background: color-mix(in srgb, var(--card-elevated) 96%, transparent);
  box-shadow: 0 18px 52px color-mix(in srgb, var(--brand) 8%, transparent);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.tag {
  min-height: 24px;
  display: inline-flex;
  align-items: center;
  border: 1px solid color-mix(in srgb, var(--brand) 24%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--brand) 10%, transparent);
  color: var(--brand-text);
  padding: 0 9px;
  font-size: 11px;
  font-weight: 780;
}

.tag-signal {
  border-color: color-mix(in srgb, var(--signal) 42%, transparent);
  background: color-mix(in srgb, var(--signal) 11%, transparent);
  color: var(--signal);
}

.tag-harvest {
  border-color: color-mix(in srgb, var(--harvest) 42%, transparent);
  background: color-mix(in srgb, var(--harvest) 14%, transparent);
  color: var(--harvest);
}

.card-icon {
  width: 36px;
  height: 36px;
  display: inline-grid;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--brand) 18%, transparent);
  border-radius: 10px;
  background: color-mix(in srgb, var(--brand) 8%, transparent);
  color: var(--brand-text);
  font-size: 12px;
  font-weight: 900;
}

.card h2 {
  margin: 0;
  color: var(--foreground);
  font-size: 16px;
  line-height: 1.35;
}

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

.card-link {
  display: inline-flex;
  margin-top: 18px;
  color: color-mix(in srgb, var(--brand-text) 78%, transparent);
  font-size: 13px;
  font-weight: 780;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: center;
  border: 1px solid color-mix(in srgb, var(--brand) 30%, var(--border));
  border-radius: 16px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--brand) 12%, transparent), transparent 58%),
    color-mix(in srgb, var(--card) 94%, transparent);
  padding: 28px;
}

.contact-section .section-heading {
  margin-bottom: 14px;
}

.contact-copy h2 {
  margin: 0;
  color: var(--foreground);
  font-size: 26px;
  line-height: 1.2;
}

.contact-copy p {
  max-width: 560px;
  margin: 10px 0 0;
  color: var(--muted);
}

.contact-actions {
  display: grid;
  gap: 14px;
  justify-items: end;
}

.qr-card {
  width: 220px;
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--card-elevated) 96%, transparent);
  padding: 10px;
}

.qr-card img {
  width: 76px;
  height: 76px;
  display: block;
  border-radius: 8px;
  object-fit: contain;
  object-position: center;
  background: #fff;
}

.qr-card strong,
.qr-card span {
  display: block;
}

.qr-card span {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.footer {
  width: min(1152px, 100%);
  display: grid;
  gap: 8px;
  margin: 0 auto;
  padding: 32px 24px 44px;
  color: var(--muted);
  text-align: center;
}

.footer-line {
  height: 1px;
  margin-bottom: 10px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--brand) 50%, transparent), transparent);
}

.footer strong {
  color: var(--foreground);
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .grid-3,
  .stat-strip {
    grid-template-columns: 1fr;
  }

  .stat-item {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .stat-item:last-child {
    border-bottom: 0;
  }

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

  .contact-actions {
    justify-items: start;
  }
}

@media (max-width: 760px) {
  .brand-sub,
  .nav-pill.optional,
  .social-link span:last-child {
    display: none;
  }

  .nav-inner,
  main,
  .footer {
    padding-left: 16px;
    padding-right: 16px;
  }

  .nav-actions {
    gap: 6px;
  }

  .hero {
    min-height: 0;
    padding-top: 46px;
  }

  h1 {
    font-size: 48px;
  }

  .hero-subtitle {
    font-size: 21px;
  }

  .actions {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  .radar-board {
    min-height: 360px;
  }

  .wechat-panel {
    right: -66px;
  }

  .contact-section {
    padding: 20px;
  }

  .qr-card {
    width: 100%;
  }
}

@media (max-width: 420px) {
  .brand-lockup span:nth-child(2) {
    max-width: 116px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .wechat-button {
    max-width: 78px;
    overflow: hidden;
    white-space: nowrap;
  }

  .avatar-link {
    display: none;
  }
}