:root {
  --bg-0: #040816;
  --bg-1: #07142d;
  --bg-2: #22104b;
  --ink: #f4f8ff;
  --muted: #a8b6d8;
  --line: rgba(164, 196, 255, 0.18);
  --panel: rgba(9, 20, 44, 0.62);
  --panel-strong: rgba(12, 25, 54, 0.82);
  --green: #35f28f;
  --cyan: #4ddcff;
  --violet: #7d5cff;
  --warn: #ffd166;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.34);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", Arial, sans-serif;
  line-height: 1.7;
  background:
    radial-gradient(circle at 18% 12%, rgba(77, 220, 255, 0.20), transparent 30%),
    radial-gradient(circle at 82% 3%, rgba(125, 92, 255, 0.22), transparent 28%),
    radial-gradient(circle at 72% 72%, rgba(53, 242, 143, 0.12), transparent 32%),
    linear-gradient(135deg, var(--bg-0) 0%, var(--bg-1) 46%, var(--bg-2) 100%);
  overflow-x: hidden;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  z-index: -4;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.9), transparent 88%);
}

body::after {
  z-index: -2;
  background:
    linear-gradient(100deg, transparent 0%, rgba(53, 242, 143, 0.08) 38%, transparent 62%),
    repeating-linear-gradient(110deg, transparent 0 44px, rgba(53, 242, 143, 0.08) 45px, transparent 47px);
  animation: signal-flow 10s linear infinite;
  opacity: 0.62;
}

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

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

p {
  color: var(--muted);
}

.site-shell {
  position: relative;
  z-index: 1;
}

#particle-network {
  position: fixed;
  inset: 0;
  z-index: -3;
  width: 100%;
  height: 100%;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(5, 10, 25, 0.62);
  backdrop-filter: blur(18px);
  transition: background 0.25s ease, box-shadow 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(5, 10, 25, 0.86);
  box-shadow: 0 12px 42px rgba(0, 0, 0, 0.34);
}

.header-inner {
  width: min(var(--max), calc(100% - 36px));
  margin: 0 auto;
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 178px;
}

.brand-logo {
  width: 50px;
  height: 50px;
  flex: 0 0 50px;
  filter: drop-shadow(0 0 18px rgba(53, 242, 143, 0.26));
}

.brand-name {
  display: flex;
  flex-direction: column;
  gap: 0;
  font-weight: 800;
  color: #fff;
  line-height: 1.08;
}

.brand-name small {
  color: var(--green);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
}

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

.main-nav a {
  position: relative;
  padding: 9px 12px;
  color: #d7e3ff;
  font-size: 14px;
  border-radius: 8px;
  transition: color 0.2s ease, background 0.2s ease;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 6px;
  height: 2px;
  background: linear-gradient(90deg, var(--green), var(--cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: #fff;
  background: rgba(255, 255, 255, 0.07);
}

.main-nav a:hover::after,
.main-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
  color: #fff;
  place-items: center;
  cursor: pointer;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle span {
  position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle span::before {
  top: -6px;
}

.nav-toggle span::after {
  top: 6px;
}

.nav-toggle.is-open span {
  background: transparent;
}

.nav-toggle.is-open span::before {
  transform: translateY(6px) rotate(45deg);
  background: #fff;
}

.nav-toggle.is-open span::after {
  transform: translateY(-6px) rotate(-45deg);
  background: #fff;
}

.download-btn,
.btn,
.redirect-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 18px;
  border: 0;
  border-radius: 999px;
  color: #04101c;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  overflow: hidden;
  background: linear-gradient(110deg, var(--green), var(--cyan), #b8ff6a, var(--green));
  background-size: 260% 100%;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.14), 0 0 26px rgba(53, 242, 143, 0.30);
  animation: button-flow 4s ease-in-out infinite, button-breathe 2.8s ease-in-out infinite;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.download-btn:hover,
.btn:hover,
.redirect-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(255,255,255,0.18), 0 0 38px rgba(53, 242, 143, 0.48);
}

.btn-secondary {
  color: #eaf2ff;
  background: rgba(255, 255, 255, 0.09);
  background-size: auto;
  border: 1px solid var(--line);
  box-shadow: none;
  animation: none;
}

.btn-secondary:hover {
  box-shadow: 0 0 24px rgba(77, 220, 255, 0.20);
}

.btn-ripple {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.65);
  transform: translate(-50%, -50%) scale(1);
  animation: ripple 0.65s ease-out forwards;
  pointer-events: none;
}

.hero-section {
  padding: 92px 0 62px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.92fr);
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  color: #bfffe0;
  font-weight: 800;
  font-size: 13px;
}

.eyebrow::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 18px rgba(53, 242, 143, 0.9);
}

.hero-title,
.page-title {
  margin: 0;
  color: #fff;
  line-height: 1.12;
  font-size: clamp(38px, 6vw, 70px);
  font-weight: 900;
}

.hero-title strong,
.page-title strong,
.gradient-text {
  color: transparent;
  background: linear-gradient(92deg, #fff, #aefbd4 36%, #76dcff 68%, #d7c7ff);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-lead,
.page-lead {
  margin: 22px 0 0;
  max-width: 720px;
  font-size: 18px;
  color: #c7d3f3;
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero-media,
.image-frame {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-media img,
.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 9;
}

.hero-media::before,
.image-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(125deg, rgba(255,255,255,0.2), transparent 34%, rgba(53,242,143,0.16));
  mix-blend-mode: screen;
  pointer-events: none;
}

.orbit-badge {
  position: absolute;
  left: 18px;
  bottom: 18px;
  width: min(78%, 360px);
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(4, 10, 26, 0.72);
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 50px rgba(0,0,0,0.34);
}

.orbit-badge span {
  display: block;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
}

.orbit-badge b {
  display: block;
  color: #fff;
  margin-top: 3px;
  font-size: 19px;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 42px;
}

.metric-card,
.glass-card,
.feature-card,
.news-card,
.faq-card,
.step-card,
.contact-card,
.article-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.045));
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.20);
  backdrop-filter: blur(16px);
  transition: transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
}

.metric-card:hover,
.glass-card:hover,
.feature-card:hover,
.news-card:hover,
.faq-card:hover,
.step-card:hover,
.contact-card:hover,
.article-panel:hover {
  transform: translateY(-4px);
  border-color: rgba(53, 242, 143, 0.42);
  box-shadow: 0 22px 54px rgba(0, 0, 0, 0.26), 0 0 30px rgba(53, 242, 143, 0.12);
}

.metric-card {
  padding: 18px;
}

.metric-card b {
  display: block;
  color: #fff;
  font-size: 28px;
  line-height: 1.1;
}

.metric-card span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: 74px 0;
}

.section.compact {
  padding: 48px 0;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 28px;
}

.section-kicker {
  margin: 0 0 8px;
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
}

.section-title {
  margin: 0;
  color: #fff;
  font-size: clamp(26px, 3.3vw, 42px);
  line-height: 1.22;
}

.section-copy {
  max-width: 560px;
  margin: 0;
}

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

.feature-card {
  padding: 24px;
  min-height: 220px;
}

.icon-pill {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #051323;
  font-weight: 900;
  background: linear-gradient(135deg, var(--green), var(--cyan));
  box-shadow: 0 0 22px rgba(53, 242, 143, 0.28);
}

.feature-card h3,
.news-card h3,
.faq-card h3,
.step-card h3,
.contact-card h3,
.article-panel h2,
.article-panel h3 {
  margin: 18px 0 8px;
  color: #fff;
  line-height: 1.28;
}

.feature-card p,
.news-card p,
.faq-card p,
.step-card p,
.contact-card p,
.article-panel p {
  margin: 0;
}

.showcase-grid,
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
  align-items: center;
}

.glass-card {
  padding: 28px;
}

.check-list {
  display: grid;
  gap: 14px;
  padding: 0;
  margin: 22px 0 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: #dce8ff;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: radial-gradient(circle at center, #fff 0 22%, var(--green) 24% 100%);
  box-shadow: 0 0 18px rgba(53, 242, 143, 0.36);
}

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

.news-card {
  overflow: hidden;
}

.news-card img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.news-body {
  padding: 20px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid rgba(53, 242, 143, 0.28);
  border-radius: 999px;
  color: #c9ffdf;
  font-size: 12px;
  background: rgba(53, 242, 143, 0.08);
}

.cta-band {
  position: relative;
  padding: 44px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.16);
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(53, 242, 143, 0.14), transparent 42%),
    linear-gradient(110deg, rgba(125, 92, 255, 0.26), rgba(8, 18, 42, 0.86));
  box-shadow: var(--shadow);
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: conic-gradient(from 90deg, transparent, rgba(53, 242, 143, 0.22), transparent, rgba(77, 220, 255, 0.16), transparent);
  animation: rotate-glow 12s linear infinite;
}

.cta-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
}

.cta-content h2 {
  margin: 0;
  color: #fff;
  font-size: clamp(26px, 3vw, 40px);
}

.cta-content p {
  margin: 10px 0 0;
  max-width: 680px;
}

.page-hero {
  padding: 70px 0 44px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 20px;
  color: #a8b6d8;
  font-size: 14px;
}

.breadcrumb a {
  color: #dce8ff;
}

.breadcrumb span {
  color: var(--green);
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.timeline {
  display: grid;
  gap: 16px;
}

.step-card {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 18px;
  padding: 22px;
}

.step-index {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #06101f;
  font-weight: 900;
  background: linear-gradient(135deg, var(--green), var(--cyan));
}

.faq-stack {
  display: grid;
  gap: 14px;
}

.faq-card {
  padding: 22px;
}

.faq-card h2,
.faq-card h3 {
  margin: 0 0 8px;
  color: #fff;
  font-size: 20px;
}

.article-list {
  display: grid;
  gap: 18px;
}

.article-panel {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 22px;
  padding: 18px;
  align-items: center;
}

.article-panel img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius);
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 22px;
  align-items: start;
}

.contact-card {
  padding: 22px;
}

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

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

.field {
  display: grid;
  gap: 7px;
}

.field label {
  color: #eaf2ff;
  font-weight: 700;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 12px;
  color: #fff;
  background: rgba(255, 255, 255, 0.07);
  outline: none;
  font: inherit;
}

.field textarea {
  min-height: 142px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: rgba(53, 242, 143, 0.62);
  box-shadow: 0 0 0 3px rgba(53, 242, 143, 0.12);
}

.redirect-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 30px;
}

.redirect-card {
  width: min(560px, 100%);
  padding: 34px;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(8, 18, 42, 0.76);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.countdown-ring {
  width: 92px;
  height: 92px;
  margin: 0 auto 20px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--green);
  font-size: 34px;
  font-weight: 900;
  border: 1px solid rgba(53, 242, 143, 0.44);
  box-shadow: inset 0 0 22px rgba(53, 242, 143, 0.14), 0 0 30px rgba(53, 242, 143, 0.20);
}

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(4, 8, 22, 0.72);
  backdrop-filter: blur(14px);
}

.footer-grid {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 38px 0 24px;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 28px;
}

.footer-title {
  margin: 0 0 12px;
  color: #fff;
  font-weight: 900;
}

.footer-brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 12px;
  color: #fff;
  font-weight: 900;
  line-height: 1.2;
}

.footer-brand-link:hover {
  color: #dfffee;
}

.footer-logo {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  filter: drop-shadow(0 0 16px rgba(53, 242, 143, 0.28));
}

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

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

.footer-links a:hover {
  color: #fff;
}

.copyright {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 18px 0 24px;
  color: #93a3c8;
  font-size: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

@keyframes signal-flow {
  from { transform: translate3d(-4%, 0, 0); }
  to { transform: translate3d(4%, 0, 0); }
}

@keyframes button-flow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes button-breathe {
  0%, 100% { filter: saturate(1); }
  50% { filter: saturate(1.22) brightness(1.04); }
}

@keyframes ripple {
  to {
    transform: translate(-50%, -50%) scale(20);
    opacity: 0;
  }
}

@keyframes rotate-glow {
  to { transform: rotate(360deg); }
}

@media (max-width: 980px) {
  .header-inner {
    min-height: 68px;
  }

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

  .main-nav {
    position: absolute;
    left: 18px;
    right: 18px;
    top: 74px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(5, 12, 30, 0.96);
    box-shadow: var(--shadow);
  }

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

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

  .download-btn {
    min-width: 106px;
  }

  .hero-grid,
  .showcase-grid,
  .split-grid,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 32px;
  }

  .metric-strip,
  .feature-grid,
  .news-grid,
  .footer-grid,
  .panel-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .cta-content {
    grid-template-columns: 1fr;
  }
}

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

  .brand {
    min-width: 0;
  }

  .brand-logo {
    width: 44px;
    height: 44px;
    flex-basis: 44px;
  }

  .brand-name {
    font-size: 15px;
  }

  .brand-name small {
    font-size: 11px;
  }

  .download-btn {
    padding: 0 13px;
    min-height: 40px;
    font-size: 13px;
  }

  .hero-section {
    padding: 58px 0 36px;
  }

  .hero-title,
  .page-title {
    font-size: clamp(32px, 11vw, 44px);
  }

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

  .metric-strip,
  .feature-grid,
  .news-grid,
  .footer-grid,
  .panel-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 54px 0;
  }

  .section-head {
    display: block;
  }

  .section-copy {
    margin-top: 12px;
  }

  .step-card {
    grid-template-columns: 1fr;
  }

  .cta-band {
    padding: 28px;
  }

  .orbit-badge {
    position: static;
    width: auto;
    margin: -82px 14px 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}