:root {
  --bg: #050608;
  --bg-soft: #0b0f16;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.13);
  --line: rgba(255, 178, 71, 0.22);
  --line-cool: rgba(79, 255, 214, 0.18);
  --text: #f7fbff;
  --muted: #b6c0c9;
  --dim: #7f8b96;
  --orange: #ff7a18;
  --orange-2: #ff9f2d;
  --gold: #ffd46b;
  --citrus: #ffef9f;
  --teal: #35ffd6;
  --danger: #ff4f4f;
  --shadow: 0 22px 80px rgba(0, 0, 0, 0.42);
  --radius: 8px;
  --max: 1180px;
  --header: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(5, 6, 8, 0.96), rgba(7, 10, 14, 0.98) 42%, #050608),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.028) 0 1px, transparent 1px 74px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.022) 0 1px, transparent 1px 74px),
    var(--bg);
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
  letter-spacing: 0;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
  background:
    linear-gradient(120deg, transparent 0 22%, rgba(255, 122, 24, 0.09) 22.4%, transparent 23.2% 56%, rgba(53, 255, 214, 0.06) 56.5%, transparent 57.2%),
    linear-gradient(70deg, rgba(255, 212, 107, 0.06), transparent 28%, transparent 74%, rgba(255, 122, 24, 0.07));
  opacity: 0.86;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.page {
  position: relative;
  min-height: 100vh;
}

#particle-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  opacity: 0.88;
}

.container {
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 24px;
  height: var(--header);
  padding: 0 max(20px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(5, 7, 10, 0.74);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 156px;
  font-weight: 800;
}

.brand-mark {
  width: 42px;
  height: 42px;
  filter: drop-shadow(0 0 16px rgba(255, 122, 24, 0.52));
}

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

.brand-text {
  font-size: 18px;
  color: #fff7e1;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex: 1;
}

.site-nav a {
  position: relative;
  padding: 9px 12px;
  color: var(--muted);
  font-size: 14px;
  border-radius: 8px;
  transition: color 180ms ease, background 180ms ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--citrus);
  background: rgba(255, 122, 24, 0.1);
}

.site-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), var(--gold));
  box-shadow: 0 0 12px rgba(255, 154, 42, 0.65);
}

.download-pill,
.primary-btn,
.secondary-btn,
.ghost-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid rgba(255, 200, 101, 0.42);
  border-radius: 8px;
  overflow: hidden;
  font-weight: 700;
  color: #221205;
  background: linear-gradient(135deg, var(--gold), var(--orange) 58%, #ff5b18);
  box-shadow: 0 0 20px rgba(255, 122, 24, 0.36), inset 0 1px 0 rgba(255, 255, 255, 0.38);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
  animation: neonBreath 3.2s ease-in-out infinite;
}

.download-pill::before,
.primary-btn::before {
  content: "";
  position: absolute;
  inset: -40% auto -40% -70%;
  width: 54%;
  transform: skewX(-24deg);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.65), transparent);
  animation: lightTrack 3.8s ease-in-out infinite;
}

.download-pill span,
.primary-btn span,
.secondary-btn span,
.ghost-btn span {
  position: relative;
  z-index: 1;
}

.download-pill:hover,
.primary-btn:hover,
.secondary-btn:hover,
.ghost-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 28px rgba(255, 122, 24, 0.58), 0 16px 42px rgba(0, 0, 0, 0.36);
}

.secondary-btn {
  color: #fff7e1;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 212, 107, 0.32);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15);
  animation: none;
}

.ghost-btn {
  min-height: 40px;
  color: var(--citrus);
  background: transparent;
  border-color: rgba(255, 212, 107, 0.24);
  box-shadow: none;
  animation: none;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--citrus);
  border-radius: 999px;
}

.hero {
  position: relative;
  min-height: calc(82vh - var(--header));
  display: grid;
  align-items: center;
  padding: 82px 0 76px;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(90deg, rgba(5, 6, 8, 0.92) 0%, rgba(5, 6, 8, 0.76) 42%, rgba(5, 6, 8, 0.2) 100%),
    linear-gradient(180deg, rgba(5, 6, 8, 0.25), rgba(5, 6, 8, 0.85)),
    var(--hero-image);
  background-size: cover;
  background-position: center;
}

.hero::after,
.page-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 153, 44, 0.75), rgba(53, 255, 214, 0.45), transparent);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  color: var(--gold);
  font-weight: 700;
  font-size: 14px;
}

.eyebrow::before,
.section-kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), var(--teal));
  box-shadow: 0 0 12px rgba(255, 122, 24, 0.7);
}

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

h1 {
  margin-bottom: 22px;
  font-size: 56px;
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: 36px;
  line-height: 1.2;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
  line-height: 1.35;
  letter-spacing: 0;
}

.hero-lead,
.page-lead,
.section-lead {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

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

.metric-chip {
  min-width: 132px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
}

.metric-chip strong {
  display: block;
  color: var(--citrus);
  font-size: 22px;
  line-height: 1.2;
}

.metric-chip span {
  color: var(--dim);
  font-size: 13px;
}

.section-band {
  padding: 86px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.section-band.alt {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.028), transparent),
    rgba(255, 255, 255, 0.02);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 34px;
}

.section-head .section-lead {
  margin-bottom: 0;
}

.feature-grid,
.scenario-grid,
.news-grid,
.faq-grid,
.contact-grid,
.value-grid,
.step-grid,
.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card,
.scenario-card,
.news-card,
.faq-card,
.contact-card,
.value-card,
.step-card,
.spec-card,
.timeline-item {
  position: relative;
  min-height: 100%;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel-strong), rgba(255, 255, 255, 0.055));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  overflow: hidden;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.feature-card::before,
.scenario-card::before,
.news-card::before,
.faq-card::before,
.contact-card::before,
.value-card::before,
.step-card::before,
.spec-card::before,
.timeline-item::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255, 212, 107, 0.5), transparent 36%, rgba(53, 255, 214, 0.18));
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 180ms ease;
}

.feature-card:hover,
.scenario-card:hover,
.news-card:hover,
.faq-card:hover,
.contact-card:hover,
.value-card:hover,
.step-card:hover,
.spec-card:hover,
.timeline-item:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 174, 55, 0.36);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.07));
  box-shadow: 0 0 34px rgba(255, 122, 24, 0.18), 0 28px 90px rgba(0, 0, 0, 0.46);
}

.feature-card:hover::before,
.scenario-card:hover::before,
.news-card:hover::before,
.faq-card:hover::before,
.contact-card:hover::before,
.value-card:hover::before,
.step-card:hover::before,
.spec-card:hover::before,
.timeline-item:hover::before {
  opacity: 1;
}

.icon-badge,
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  border: 1px solid rgba(255, 212, 107, 0.38);
  border-radius: 8px;
  color: #241102;
  font-weight: 800;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  box-shadow: 0 0 20px rgba(255, 122, 24, 0.36);
}

.feature-card p,
.scenario-card p,
.news-card p,
.faq-card p,
.contact-card p,
.value-card p,
.step-card p,
.spec-card p,
.timeline-item p {
  margin-bottom: 0;
  color: var(--muted);
}

.media-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  align-items: stretch;
}

.media-card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow);
}

.media-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.media-caption {
  padding: 20px;
}

.media-caption p {
  color: var(--muted);
  margin-bottom: 0;
}

.split-panel {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 36px;
  align-items: center;
}

.glass-panel {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  overflow: hidden;
}

.glass-panel img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.bullet-list,
.check-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.bullet-list li,
.check-list li {
  position: relative;
  padding-left: 24px;
  color: var(--muted);
}

.bullet-list li::before,
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  box-shadow: 0 0 12px rgba(255, 122, 24, 0.65);
}

.page-hero {
  position: relative;
  padding: 86px 0 70px;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(90deg, rgba(5, 6, 8, 0.94), rgba(5, 6, 8, 0.72), rgba(5, 6, 8, 0.36)),
    var(--page-image);
  background-size: cover;
  background-position: center;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  max-width: 820px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--dim);
  font-size: 14px;
}

.breadcrumb a {
  color: var(--gold);
}

.timeline {
  display: grid;
  gap: 18px;
  counter-reset: timeline;
}

.timeline-item {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 18px;
}

.timeline-year {
  color: var(--gold);
  font-size: 22px;
  font-weight: 800;
}

.article-list {
  display: grid;
  gap: 20px;
}

.article-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 22px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(18px);
}

.article-row img {
  width: 100%;
  height: 148px;
  object-fit: cover;
  border-radius: 8px;
}

.news-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 8px;
  color: var(--dim);
  font-size: 13px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 10px;
  border: 1px solid rgba(255, 212, 107, 0.26);
  border-radius: 999px;
  color: var(--citrus);
  background: rgba(255, 122, 24, 0.1);
  font-size: 13px;
}

.faq-card details {
  position: relative;
  z-index: 1;
}

.faq-card summary {
  cursor: pointer;
  color: var(--citrus);
  font-weight: 800;
}

.faq-card summary::marker {
  color: var(--orange);
}

.faq-card details p {
  margin-top: 14px;
}

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

.contact-form.glass-panel {
  padding: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field label {
  color: var(--citrus);
  font-size: 14px;
  font-weight: 700;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  padding: 13px 14px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  outline: none;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.field input:focus,
.field textarea:focus {
  border-color: rgba(255, 177, 60, 0.62);
  box-shadow: 0 0 0 3px rgba(255, 122, 24, 0.16);
}

.field textarea {
  min-height: 132px;
  resize: vertical;
}

.redirect-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 20px;
}

.redirect-box {
  width: min(100%, 520px);
  padding: 34px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.09);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
  text-align: center;
}

.redirect-box .brand {
  justify-content: center;
  margin: 0 auto 18px;
}

.countdown {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  margin: 10px auto 22px;
  border: 1px solid rgba(255, 212, 107, 0.32);
  border-radius: 50%;
  color: var(--gold);
  font-size: 24px;
  font-weight: 800;
  box-shadow: inset 0 0 20px rgba(255, 122, 24, 0.12), 0 0 20px rgba(255, 122, 24, 0.24);
}

.site-footer {
  padding: 42px 0;
  background: rgba(0, 0, 0, 0.28);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 28px;
  align-items: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: end;
  gap: 14px;
}

.footer-links a {
  color: var(--muted);
  font-size: 14px;
}

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

.copyright {
  margin: 10px 0 0;
  color: var(--dim);
  font-size: 14px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 500ms ease, transform 500ms ease;
}

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

@keyframes neonBreath {
  0%, 100% {
    box-shadow: 0 0 18px rgba(255, 122, 24, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.38);
  }
  50% {
    box-shadow: 0 0 30px rgba(255, 166, 48, 0.6), 0 0 58px rgba(255, 122, 24, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.45);
  }
}

@keyframes lightTrack {
  0%, 54% {
    left: -70%;
  }
  86%, 100% {
    left: 128%;
  }
}

@media (max-width: 980px) {
  :root {
    --header: 68px;
  }

  .site-header {
    padding: 0 20px;
  }

  .nav-toggle {
    display: block;
    margin-left: auto;
  }

  .site-nav {
    position: absolute;
    left: 20px;
    right: 20px;
    top: calc(var(--header) + 10px);
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    background: rgba(5, 7, 10, 0.94);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 12px 14px;
  }

  .download-pill {
    min-height: 40px;
    padding: 0 14px;
  }

  h1 {
    font-size: 42px;
  }

  h2 {
    font-size: 30px;
  }

  .section-head,
  .split-panel,
  .media-grid {
    grid-template-columns: 1fr;
  }

  .section-head {
    display: grid;
  }

  .feature-grid,
  .scenario-grid,
  .news-grid,
  .faq-grid,
  .contact-grid,
  .value-grid,
  .step-grid,
  .spec-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .footer-links {
    justify-content: start;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, var(--max));
  }

  .brand {
    min-width: auto;
  }

  .brand-text {
    font-size: 16px;
  }

  .site-header {
    gap: 10px;
  }

  .download-pill {
    min-width: 86px;
    padding: 0 10px;
    font-size: 13px;
  }

  .hero,
  .page-hero {
    padding: 58px 0 54px;
  }

  .hero {
    min-height: calc(78vh - var(--header));
  }

  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 26px;
  }

  .hero-lead,
  .page-lead,
  .section-lead {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .primary-btn,
  .secondary-btn,
  .ghost-btn {
    width: 100%;
  }

  .feature-grid,
  .scenario-grid,
  .news-grid,
  .faq-grid,
  .contact-grid,
  .value-grid,
  .step-grid,
  .spec-grid {
    grid-template-columns: 1fr;
  }

  .section-band {
    padding: 58px 0;
  }

  .article-row {
    grid-template-columns: 1fr;
  }

  .article-row img {
    height: auto;
    aspect-ratio: 3 / 2;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }

  #particle-canvas {
    display: none;
  }
}