:root {
  --bg: #f8fafc;
  --ink: #0f172a;
  --muted: #475569;
  --line: #dbe3ef;
  --brand: #0b6bcb;
  --brand-2: #14b8a6;
  --surface: #ffffff;
  --surface-2: #eef4ff;
  --danger: #be123c;
  --radius: 18px;
  --shadow: 0 20px 55px rgba(15, 23, 42, 0.12);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  color: var(--ink);
  background:
    radial-gradient(1200px 520px at 90% -5%, rgba(20,184,166,0.14), transparent 60%),
    radial-gradient(900px 420px at 5% 5%, rgba(11,107,203,0.12), transparent 58%),
    var(--bg);
  font-family: "Avenir Next", "Nunito Sans", "Segoe UI", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.45;
}

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

.nav {
  width: min(1160px, calc(100% - 32px));
  margin: 14px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 12px;
  z-index: 20;
}

.brand { display: flex; align-items: center; gap: 10px; }
.mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.07em;
  background: linear-gradient(125deg, var(--brand), var(--brand-2));
}
.word { font-weight: 780; font-size: 20px; }

.links { display: flex; gap: 22px; color: var(--muted); font-weight: 600; }
.links a:hover { color: var(--ink); }

.nav-actions { display: flex; gap: 10px; }

.btn {
  padding: 10px 15px;
  border-radius: 11px;
  border: 1px solid transparent;
  font-weight: 720;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn.solid {
  background: linear-gradient(120deg, var(--brand), #107cd9);
  color: #fff;
}
.btn.solid:hover { filter: brightness(1.05); }
.btn.ghost {
  border-color: #b8c9e0;
  color: #1d3d66;
  background: #fff;
}
.btn.ghost:hover { background: #f1f6fe; }
.btn.block { width: 100%; }

main {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
  padding-left: 14px;
  padding-right: 14px;
}

.hero {
  padding: 36px 0 24px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 26px;
  align-items: start;
}

.eyebrow {
  margin: 0;
  color: #0f4c88;
  font-weight: 760;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 12px;
}

h1 {
  margin: 10px 0 12px;
  line-height: 1.15;
  font-size: clamp(32px, 4vw, 56px);
  letter-spacing: -0.02em;
}
.sub {
  margin: 0;
  color: var(--muted);
  max-width: 620px;
  font-size: 18px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  margin: 22px 0 18px;
  flex-wrap: wrap;
}

.proof {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  color: #334155;
  font-size: 14px;
}
.proof b { color: #0f172a; }

.hero-panel {
  border-radius: var(--radius);
  background: linear-gradient(160deg, #0f172a, #13243f);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 12px;
  box-shadow: var(--shadow);
}

.terminal {
  color: #dbeafe;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.15);
}
.term-head {
  background: rgba(10, 18, 33, 0.7);
  border-bottom: 1px solid rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 11px;
}
.term-head span {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: #93c5fd;
}
.term-head span:nth-child(2) { background: #22d3ee; }
.term-head span:nth-child(3) { background: #2dd4bf; }
.term-head code { margin-left: 8px; opacity: 0.9; }
.terminal pre {
  margin: 0;
  padding: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Courier New", monospace;
  font-size: 12px;
  white-space: pre-wrap;
}

.logo-strip {
  padding: 16px 0 8px;
  color: #334155;
}
.logo-strip p { margin: 0 0 12px; font-weight: 700; }
.logos {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.logos span {
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: #334155;
  font-weight: 650;
  font-size: 13px;
}

.section {
  padding: 56px 0 10px;
}
.section h2 {
  margin: 0 0 14px;
  font-size: clamp(28px, 3vw, 38px);
  letter-spacing: -0.02em;
}
.section.alt {
  margin-top: 28px;
  padding: 30px 20px;
  border-radius: var(--radius);
  background: var(--surface-2);
  border: 1px solid #d8e6fb;
}
.cards {
  display: grid;
  gap: 14px;
}
.cards.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cards.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
}
.card h3 { margin: 0 0 8px; font-size: 20px; }
.card p { margin: 0; color: var(--muted); }

.chips {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 4px 0 14px;
}
.chips span {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 10px;
  font-weight: 650;
  color: #1e3a5f;
}
.center { text-align: center; color: #294468; }

.price .price-num {
  margin: 6px 0 12px;
  color: #0f172a;
  font-weight: 800;
  font-size: 34px;
  letter-spacing: -0.02em;
}
.price .price-num span {
  color: var(--muted);
  font-size: 16px;
  font-weight: 600;
}
.price ul {
  margin: 0 0 16px 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  color: #334155;
}
.price ul li::before {
  content: "✓";
  color: #0f766e;
  margin-right: 8px;
}
.price.featured {
  border-color: #8ac0ff;
  box-shadow: 0 18px 42px rgba(11, 107, 203, 0.17);
  transform: translateY(-6px);
}

.faq details {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 13px;
  margin-bottom: 10px;
  background: #fff;
}
.faq summary {
  cursor: pointer;
  font-weight: 700;
}
.faq p { margin: 10px 0 2px; color: var(--muted); }

.cta {
  margin: 52px 0 18px;
  border-radius: 24px;
  background:
    radial-gradient(650px 250px at 15% 15%, rgba(20,184,166,0.19), transparent 65%),
    radial-gradient(620px 240px at 80% 70%, rgba(11,107,203,0.16), transparent 62%),
    #0f172a;
  color: #e2e8f0;
  padding: 30px 24px;
}
.cta h2 { margin: 0 0 8px; font-size: clamp(24px, 3vw, 36px); color: #fff; }
.cta p { margin: 0; color: #cbd5e1; }

.foot {
  width: min(1160px, calc(100% - 32px));
  margin: 12px auto 28px;
  border-top: 1px solid #d8e1ef;
  padding-top: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #64748b;
  font-size: 13px;
  gap: 14px;
  flex-wrap: wrap;
}
.foot-links { display: flex; gap: 14px; }
.foot-links a:hover { color: #0f172a; }

.wx-main {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.wx-hero {
  padding: 18px 0 8px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 22px;
  align-items: start;
}

.wx-hero > div:first-child {
  max-width: 640px;
}

#wechat.section {
  padding: 34px 0 8px;
}

.wx-qr {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}

.wx-qr h3 {
  margin: 0 0 8px;
  font-size: 22px;
}

.wx-qr p {
  margin: 0 0 12px;
  color: var(--muted);
}

.qr-box {
  min-height: 190px;
  border: 1px dashed #9fb2ca;
  border-radius: 14px;
  display: grid;
  place-items: center;
  text-align: center;
  font-size: 14px;
  color: #3f5f82;
  background: #f7fbff;
  margin-bottom: 10px;
}

.qr-box img {
  width: 100%;
  max-width: 230px;
  height: auto;
  border-radius: 10px;
  display: block;
}

.image-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.image-item {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.image-item img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
}

.wx-meta {
  color: #334155;
  font-size: 14px;
  line-height: 1.6;
}



.wx-link {
  display: inline-block;
  margin-top: 12px;
  color: var(--brand);
  font-weight: 700;
}

.wx-link[aria-disabled="true"] {
  pointer-events: none;
  opacity: 0.75;
}

.about-content {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
}

.about-content h3 {
  margin: 0 0 16px;
  font-size: 22px;
  color: var(--ink);
}

.about-content p {
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.5;
}

.about-content ul {
  margin: 0 0 16px;
  padding-left: 24px;
  color: var(--muted);
}

.about-content li {
  margin-bottom: 8px;
  line-height: 1.5;
}

@media (max-width: 980px) {
  .links { display: none; }
  .hero { grid-template-columns: 1fr; }
  .cards.three, .cards.two { grid-template-columns: 1fr; }
  .price.featured { transform: none; }
  .wx-hero { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav {
    width: calc(100% - 20px);
    margin-top: 10px;
    padding: 10px;
  }
  .word { font-size: 18px; }
  main, .foot { width: calc(100% - 20px); }
  .hero { padding-top: 24px; }
}