@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;600;700&display=swap");
:root {
  --bg: #f4f7ff;
  --bg2: #e7f0ff;
  --ink: #0c1426;
  --muted: #4e5c77;
  --accent: #00d1b2;
  --accent2: #3f8cff;
  --accent3: #ff8fb1;
  --card: rgba(255, 255, 255, 0.92);
  --stroke: rgba(12, 20, 38, 0.08);
  --glow: rgba(0, 209, 178, 0.18);
  --shine: rgba(63, 140, 255, 0.18);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: radial-gradient(1200px 700px at 75% -10%, rgba(0,209,178,0.18), transparent 60%),
              radial-gradient(900px 600px at -10% 25%, rgba(63,140,255,0.16), transparent 55%),
              radial-gradient(900px 600px at 110% 70%, rgba(255,143,177,0.14), transparent 55%),
              linear-gradient(180deg, var(--bg), var(--bg2));
  min-height: 100vh;
  overflow-x: hidden;
}
.grid-noise {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(12,20,38,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(12,20,38,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mix-blend-mode: multiply;
  pointer-events: none;
  opacity: 0.25;
  z-index: 0;
}
.bg-glow {
  position: fixed;
  inset: -20% 0 0 0;
  background: radial-gradient(600px 320px at var(--mx, 70%) var(--my, 10%), rgba(0,209,178,0.18), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.wrap {
  position: relative;
  z-index: 2;
  padding: 0 20px 80px;
  max-width: 1280px;
  margin: 0 auto;
}
.hero {
  position: relative;
  min-height: 62vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid rgba(12,20,38,0.08);
}
.hero::after {
  content: "";
  position: absolute;
  inset: -40% -20% auto -20%;
  height: 240px;
  background: radial-gradient(60% 100% at 50% 50%, rgba(0,209,178,0.25), transparent 70%);
  opacity: 0.7;
  animation: heroSweep 8s ease-in-out infinite;
  pointer-events: none;
}
.hero-banner {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.28;
  filter: saturate(1.15) contrast(1.05);
}
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr);
  gap: 32px;
  align-items: center;
  padding: 32px 0 20px;
}
.hero-copy {
  max-width: 640px;
  display: grid;
  gap: 12px;
  align-self: center;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}
.brand-word {
  width: 220px;
  height: 44px;
  fill: var(--ink);
}
.brand-cn {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--ink);
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(0,209,178,0.12);
  border: 1px solid rgba(0,209,178,0.4);
}
.hero-sub {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.3px;
}
.hero-copy h1 {
  font-size: clamp(34px, 4.8vw, 60px);
  margin: 0;
  letter-spacing: 0.4px;
  font-weight: 700;
  white-space: nowrap;
}
.section h2 {
  font-weight: 700;
}
.lead {
  color: var(--muted);
  font-size: clamp(15px, 2vw, 18px);
  line-height: 1.75;
  max-width: 620px;
  margin: 0;
}
.hero-points {
  display: grid;
  gap: 6px;
  margin: 6px 0 6px;
  color: #2c3b52;
}
.hero-points strong {
  margin-right: 6px;
  color: var(--ink);
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(0,209,178,0.12);
  border: 1px solid rgba(0,209,178,0.4);
  font-size: 12px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
}
.badge.mini { font-size: 10px; padding: 6px 10px; }
.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 14px 0 8px;
  align-items: center;
}
.btn {
  white-space: nowrap;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid rgba(12,20,38,0.12);
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: 0.4px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #041319;
  box-shadow: 0 16px 30px rgba(0,209,178,0.2);
}
.btn.primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 20px 40px rgba(63,140,255,0.28);
}
.btn.ghost { background: rgba(255,255,255,0.7); }
.btn:hover { transform: translateY(-2px); }
.stats {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(150px, 1fr));
  gap: 12px;
}
.stat {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 16px;
  padding: 14px 16px;
  display: grid;
  gap: 6px;
  box-shadow: 0 12px 24px rgba(12,20,38,0.08);
}
.stat-num { font-size: 20px; font-weight: 700; }
.stat-text { color: var(--muted); font-size: 13px; }
.hero-meta {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  color: var(--muted);
  font-size: 12px;
}
.hero-meta span {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--stroke);
}
.hero-panel {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 22px;
  padding: 18px;
  box-shadow: 0 24px 50px rgba(12,20,38,0.12);
  backdrop-filter: blur(10px);
  display: grid;
  gap: 12px;
}
.panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.panel-tag {
  background: rgba(0,209,178,0.18);
  border: 1px solid rgba(0,209,178,0.4);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}
.panel-title {
  font-weight: 700;
  font-size: 18px;
}
.panel-desc {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}
.panel-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.panel-item {
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--stroke);
  border-radius: 14px;
  padding: 10px 12px;
  display: grid;
  gap: 4px;
}
.panel-item strong {
  font-size: 12px;
  color: var(--muted);
}
.panel-item span {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}
.section { margin: 28px 0 0; }
.section.compact { margin-top: 10px; }
.section h2 {
  font-size: clamp(22px, 3vw, 34px);
  margin: 0 0 12px;
}
.section p {
  color: var(--muted);
  margin: 0 0 14px;
  line-height: 1.75;
}
.section-head { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.feature-grid,
.product-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.reason-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.reason-card {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 14px 30px rgba(12,20,38,0.06);
}
.reason-card h3 { margin: 0 0 8px; }
.reason-card p { margin: 0; color: var(--muted); line-height: 1.7; }
.proof-strip {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.proof-strip span {
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--stroke);
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 12px;
}
.compare-table {
  display: grid;
  gap: 8px;
}
.compare-row {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr 1fr;
  gap: 8px;
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 14px;
  padding: 12px 14px;
}
.compare-row > div {
  font-size: 14px;
  color: var(--ink);
}
.compare-head {
  background: linear-gradient(135deg, rgba(0,209,178,0.12), rgba(63,140,255,0.12));
  font-weight: 700;
}
.steps-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.review-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.review-card {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 14px 30px rgba(12,20,38,0.06);
}
.review-card h3 { margin: 0 0 8px; }
.review-card p { margin: 0; color: var(--muted); line-height: 1.7; }
.step-card {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 18px;
  padding: 16px;
  display: grid;
  grid-template-columns: 50px 1fr;
  gap: 12px;
  align-items: center;
  box-shadow: 0 14px 30px rgba(12,20,38,0.06);
}
.step-num {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 700;
  background: linear-gradient(135deg, rgba(0,209,178,0.24), rgba(63,140,255,0.24));
}
.step-card p { margin: 6px 0 0; color: var(--muted); }
.feature-card,
.product-card,
.keyword-card,
.faq-group,
.partner-grid div,
.flow-item,
.coin-card,
.app-images img {
  position: relative;
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 18px;
  padding: 18px;
  overflow: hidden;
  box-shadow: 0 14px 30px rgba(12,20,38,0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.feature-card::after,
.product-card::after,
.keyword-card::after,
.faq-group::after,
.partner-grid div::after,
.flow-item::after,
.coin-card::after,
.app-images img::after {
  content: "";
  position: absolute;
  inset: -40% -20%;
  background: radial-gradient(circle at 20% 20%, var(--shine), transparent 60%);
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}
.feature-card:hover,
.product-card:hover,
.keyword-card:hover,
.faq-group:hover,
.partner-grid div:hover,
.flow-item:hover,
.coin-card:hover,
.app-images img:hover {
  transform: translateY(-6px) scale(1.01);
  border-color: rgba(63,140,255,0.4);
  box-shadow: 0 24px 46px rgba(63,140,255,0.18);
}
.feature-card:hover::after,
.product-card:hover::after,
.keyword-card:hover::after,
.faq-group:hover::after,
.partner-grid div:hover::after,
.flow-item:hover::after,
.coin-card:hover::after,
.app-images img:hover::after {
  opacity: 1;
}
.feature-card img {
  width: 100%;
  border-radius: 14px;
  margin-bottom: 12px;
}
.product-card img {
  width: 100%;
  border-radius: 16px;
  height: 240px;
  object-fit: cover;
}
.product-info { display: grid; gap: 8px; padding-top: 12px; }
.product-info h3 { margin: 0; }
.param-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.param-tags span {
  background: rgba(0,209,178,0.12);
  border: 1px solid rgba(0,209,178,0.32);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
}
.tag {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(63,140,255,0.12);
  border: 1px solid rgba(63,140,255,0.32);
  font-size: 12px;
}
.coin-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}
.coin-card {
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  animation: coinFloat 6s ease-in-out infinite;
}
.coin-card img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}
.coin-card:nth-child(3n) { animation-delay: 0.8s; }
.coin-card:nth-child(3n+1) { animation-delay: 1.4s; }
.coin-card:nth-child(3n+2) { animation-delay: 2s; }
.partner-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}
.app-showcase {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}
.app-copy { grid-column: span 5; }
.app-images {
  grid-column: span 7;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.app-images img {
  width: 100%;
  border-radius: 16px;
  object-fit: cover;
}
.bullet-list {
  list-style: none;
  padding: 0;
  margin: 0 0 12px;
  display: grid;
  gap: 8px;
}
.bullet-list li {
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--stroke);
  padding: 10px 14px;
  border-radius: 12px;
}
.scene-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.scene-grid img {
  width: 100%;
  border-radius: 16px;
  object-fit: cover;
}
.flow { display: grid; gap: 12px; }
.flow-item {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  align-items: center;
  padding: 14px;
}
.flow-num {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(0,209,178,0.25), rgba(63,140,255,0.25));
  font-weight: 700;
}
.faq-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.faq-group h3 { margin: 0 0 10px; }
.faq-group details {
  background: rgba(255,255,255,0.95);
  border: 1px solid var(--stroke);
  border-radius: 12px;
  padding: 10px 12px;
  margin-bottom: 8px;
}
.faq-group summary { cursor: pointer; font-weight: 700; }
.tag-cloud {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}
.tag-cloud span {
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--stroke);
  padding: 10px 12px;
  border-radius: 999px;
  text-align: center;
  font-size: 13px;
}
.keyword-columns {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.keyword-card h3 { margin-top: 0; }
.footer {
  margin: 50px 0 0;
  padding: 26px 0 0;
  border-top: 1px solid rgba(12,20,38,0.08);
  color: rgba(12,20,38,0.7);
  font-size: 13px;
}
.footer-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.footer-grid h4 { margin: 0 0 10px; font-size: 15px; }
.footer-grid a,
.footer-grid span {
  display: block;
  color: rgba(12,20,38,0.7);
  text-decoration: none;
  margin-bottom: 6px;
}
.footer-bottom {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed rgba(12,20,38,0.12);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
}
.kefu {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 9;
  display: none;
  gap: 10px;
  align-items: center;
  background: linear-gradient(135deg, var(--accent3), var(--accent2));
  color: #0b1426;
  padding: 12px 16px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 12px 24px rgba(63,140,255,0.25);
  animation: pulse 2s ease-in-out infinite;
}
.kefu::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #0b1426;
  box-shadow: 0 0 0 6px rgba(11,20,38,0.12);
}
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}
@keyframes pulse {
  0%, 100% { transform: translateY(0); box-shadow: 0 12px 24px rgba(63,140,255,0.25); }
  50% { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(255,143,177,0.3); }
}
@keyframes coinFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
@keyframes heroSweep {
  0%, 100% { transform: translateY(-30px); opacity: 0.45; }
  50% { transform: translateY(20px); opacity: 0.85; }
}
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-copy { max-width: none; }
  .hero-panel { order: 2; }
  .app-showcase { grid-template-columns: 1fr; }
  .app-copy, .app-images { grid-column: auto; }
}
@media (max-width: 768px) {
  .wrap { padding: 0 16px 100px; }
  .hero { min-height: 56vh; }
  .kefu { display: inline-flex; }
  .brand-word { width: 180px; height: 36px; }
  .hero-copy h1 { white-space: normal; }
  .stats { grid-template-columns: 1fr; }
  .panel-grid { grid-template-columns: 1fr; }
  .compare-row { grid-template-columns: 1fr; }
}