:root {
  --bg: #070b14;
  --bg-card: rgba(255, 255, 255, 0.04);
  --text: #e8ecf4;
  --muted: #8b95a8;
  --gold: #d4a853;
  --gold-light: #f0d78c;
  --accent: #5b8cff;
  --accent2: #3dd6c3;
  --radius: 20px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
}

a {
  color: var(--gold-light);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

.container {
  width: min(var(--max), 92vw);
  margin: 0 auto;
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(7, 11, 20, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
}

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  object-fit: cover;
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  font-size: 0.92rem;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold), #c4922e);
  color: #1a1200;
  box-shadow: 0 8px 32px rgba(212, 168, 83, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(212, 168, 83, 0.45);
  text-decoration: none;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  text-decoration: none;
}

.hero {
  padding: 120px 0 80px;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(91, 140, 255, 0.15), transparent),
    radial-gradient(ellipse 60% 50% at 20% 80%, rgba(212, 168, 83, 0.12), transparent);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: center;
  position: relative;
}

.hero-tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(91, 140, 255, 0.12);
  border: 1px solid rgba(91, 140, 255, 0.25);
  color: #a8c4ff;
  font-size: 0.82rem;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

.hero h1 span {
  background: linear-gradient(90deg, var(--gold-light), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-desc {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 520px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 28px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--muted);
}

.hero-meta strong {
  color: var(--text);
}

.hero-visual {
  position: relative;
}

.hero-visual img {
  border-radius: var(--radius);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.55);
}

.hero-glow {
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle, rgba(212, 168, 83, 0.2), transparent 60%);
  z-index: -1;
}

.section {
  padding: 88px 0;
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 12px;
}

.section-head p {
  color: var(--muted);
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover {
  border-color: rgba(212, 168, 83, 0.35);
  transform: translateY(-4px);
}

.feature-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.feature-body {
  padding: 22px;
}

.feature-body h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.feature-body p {
  color: var(--muted);
  font-size: 0.92rem;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.split img {
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.split h2 {
  font-size: 1.9rem;
  margin-bottom: 16px;
}

.split p {
  color: var(--muted);
  margin-bottom: 12px;
}

.check-list {
  list-style: none;
  margin-top: 20px;
}

.check-list li {
  padding: 8px 0 8px 28px;
  position: relative;
  color: var(--text);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent2);
  font-weight: 700;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step {
  text-align: center;
  padding: 28px 16px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.step-num {
  width: 44px;
  height: 44px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #3d5fd9);
  display: grid;
  place-items: center;
  font-weight: 700;
}

.step h4 {
  margin-bottom: 6px;
}

.step p {
  font-size: 0.85rem;
  color: var(--muted);
}

.download-box {
  text-align: center;
  padding: 64px 32px;
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(212, 168, 83, 0.12), rgba(91, 140, 255, 0.08)),
    var(--bg-card);
  border: 1px solid rgba(212, 168, 83, 0.2);
}

.download-box h2 {
  font-size: 2rem;
  margin-bottom: 12px;
}

.download-box p {
  color: var(--muted);
  margin-bottom: 28px;
}

.download-note {
  margin-top: 20px;
  font-size: 0.82rem;
  color: var(--muted);
}

.footer {
  padding: 48px 0 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer h4 {
  color: var(--text);
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.footer ul {
  list-style: none;
}

.footer li {
  margin-bottom: 8px;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}

.page-main {
  padding: 100px 0 60px;
  min-height: 70vh;
}

.page-main h1 {
  font-size: 2rem;
  margin-bottom: 24px;
}

.page-main h2 {
  font-size: 1.2rem;
  margin: 28px 0 12px;
  color: var(--gold-light);
}

.page-main p,
.page-main li {
  color: var(--muted);
  margin-bottom: 10px;
}

.page-main ul {
  padding-left: 20px;
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .hero-grid,
  .split,
  .features,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .steps {
    grid-template-columns: 1fr 1fr;
  }

  .hero {
    padding-top: 96px;
  }

  .hero-visual {
    order: -1;
  }
}


/* Legal and privacy pages */
.legal-document {
  max-width: 860px;
}

.legal-document h1 {
  margin-bottom: 12px;
}

.legal-document h3 {
  margin: 22px 0 10px;
  color: var(--text);
  font-size: 1.05rem;
}

.legal-document strong {
  color: var(--text);
}

.legal-document ol,
.legal-document ul {
  padding-left: 24px;
}

.legal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-size: 0.9rem;
}

.legal-note {
  margin: 24px 0;
  padding: 22px;
  border: 1px solid rgba(61, 214, 195, 0.28);
  border-radius: 16px;
  background: rgba(61, 214, 195, 0.07);
}

.legal-note > strong {
  display: block;
  margin-bottom: 8px;
  color: var(--accent2);
  font-size: 1.05rem;
}

.legal-note .btn {
  margin-top: 8px;
}

.rights-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0 28px;
}

.rights-card {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 14px;
  background: var(--bg-card);
}

.rights-card h3 {
  margin-top: 0;
}

.rights-card p:last-child {
  margin-bottom: 0;
}

.legal-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
}

@media (max-width: 640px) {
  .page-main {
    padding-top: 92px;
  }

  .rights-grid {
    grid-template-columns: 1fr;
  }

  .legal-meta {
    flex-direction: column;
    gap: 4px;
  }

  .legal-note {
    padding: 18px;
  }

  .legal-note .btn {
    width: 100%;
    padding-inline: 16px;
  }
}