:root {
  --accent: #E8890C;          /* woopsieAccent warm orange */
  --accent-soft: #FFF1E0;
  --accent-deep: #C96F00;
  --bg: #FFFFFF;
  --surface: #FAF7F2;
  --fg: #2B2B2B;
  --muted: #8A8A8A;
  --border: #ECE5DC;
  --radius: 16px;
  --shadow: 0 8px 24px rgba(0,0,0,0.08);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

body {
  font-family: var(--font);
  color: var(--fg);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Language switch */
.lang-switch {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 100;
  display: flex;
  gap: 4px;
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  box-shadow: var(--shadow);
}
.lang-btn {
  border: none;
  background: transparent;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.lang-btn.active {
  background: var(--accent);
  color: #fff;
}

/* Section 1: Hero */
.hero {
  background: linear-gradient(135deg, #E8890C 0%, #D96A45 38%, #6E9FD8 72%, #8E7CC3 100%);
  color: #fff;
  padding: 120px 24px 100px;
  text-align: center;
}
.hero-logo {
  font-size: 56px;
  font-weight: 800;
  letter-spacing: -1px;
}
.hero-logo .accent { color: var(--accent); }
.hero-tagline {
  font-size: 22px;
  font-weight: 600;
  margin-top: 12px;
  color: #fff;
}
.hero-sub {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  max-width: 520px;
  margin: 16px auto 32px;
}
.cta-btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  padding: 14px 36px;
  border-radius: 999px;
  text-decoration: none;
  box-shadow: 0 10px 30px rgba(232,137,12,0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.cta-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(232,137,12,0.45); }
.hero-hint { font-size: 12px; color: rgba(255,255,255,0.5); margin-top: 18px; }

/* Section 2: Features */
.features { padding: 80px 24px 60px; max-width: 1100px; margin: 0 auto; }
.section-title {
  font-size: 32px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 48px;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-icon { font-size: 40px; margin-bottom: 14px; }
.feature-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 13px; color: var(--muted); }

/* Section 3: Gallery */
.gallery { padding: 60px 24px 80px; background: var(--surface); }
.shot-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}
.shot {
  background: #fff;
  border-radius: var(--radius);
  padding: 12px 12px 16px;
  box-shadow: var(--shadow);
}
.shot img {
  width: 100%;
  border-radius: 10px;
  display: block;
  aspect-ratio: 9/19;
  object-fit: cover;
}
.shot figcaption {
  text-align: center;
  font-size: 13px;
  color: var(--muted);
  margin-top: 10px;
}

/* Section 4: Footer */
.footer {
  padding: 40px 24px;
  text-align: center;
  background: #fff;
}
.footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 24px; margin-bottom: 16px; }
.footer-links a { color: var(--muted); font-size: 13px; text-decoration: none; transition: color 0.2s ease; }
.footer-links a:hover { color: var(--accent); }
.footer-copy { font-size: 12px; color: #B5B0A9; }
/* ICP 备案号：法规要求展示，样式弱化融入页脚，链接指向工信部备案系统 */
.footer-icp { margin-top: 6px; font-size: 11px; color: #C9C4BC; }
.footer-icp a { color: inherit; text-decoration: none; }
.footer-icp a:hover { color: var(--muted); }

@media (max-width: 600px) {
  .hero { padding: 90px 20px 70px; }
  .hero-logo { font-size: 40px; }
  .section-title { font-size: 24px; }
  .feature-grid { grid-template-columns: 1fr; }
  .shot-row { grid-template-columns: repeat(2, 1fr); }
}