:root {
  --brand: #0b6e4f;
  --brand-dark: #084c37;
  --ink: #1a2332;
  --muted: #5c6b7a;
  --bg: #f4f7f5;
  --card: #ffffff;
  --warn-bg: #fff8e8;
}

html, body {
  min-height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(11, 110, 79, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(32, 150, 110, 0.08), transparent 50%),
    var(--bg);
  display: flex;
  flex-direction: column;
}

.bg-brand {
  background: linear-gradient(90deg, var(--brand-dark), var(--brand)) !important;
}

.page-main {
  flex: 1 0 auto;
  max-width: 960px;
}

.hero {
  background: linear-gradient(145deg, #0b6e4f 0%, #12805c 45%, #1fa37a 100%);
  color: #fff;
  border-radius: 1rem;
  padding: 1.75rem 1.35rem;
  box-shadow: 0 12px 32px rgba(11, 110, 79, 0.22);
}

.hero h1 {
  font-size: clamp(1.45rem, 5vw, 1.9rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.hero p {
  opacity: 0.95;
  margin-bottom: 1rem;
}

.tool-card {
  background: var(--card);
  border: 1px solid rgba(11, 110, 79, 0.12);
  border-radius: 1rem;
  padding: 1.25rem;
  height: 100%;
  box-shadow: 0 6px 18px rgba(26, 35, 50, 0.05);
}

.tool-card h2 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

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

.stat-box {
  background: #fff;
  border-radius: 0.9rem;
  border: 1px solid rgba(0, 0, 0, 0.06);
  padding: 1rem 1.1rem;
}

.stat-box .label {
  font-size: 0.8rem;
  color: var(--muted);
}

.stat-box .value {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 0.25rem;
}

.site-footer {
  background: #e8efeb;
  border-top: 1px solid rgba(11, 110, 79, 0.12);
}

.site-footer a {
  color: var(--brand-dark);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.btn-brand {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

.btn-brand:hover {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
  color: #fff;
}

.form-card {
  background: #fff;
  border-radius: 1rem;
  border: 1px solid rgba(0, 0, 0, 0.06);
  padding: 1.35rem;
  box-shadow: 0 8px 24px rgba(26, 35, 50, 0.06);
}

.legal-content h2 {
  font-size: 1.15rem;
  margin-top: 1.5rem;
}

.legal-content p,
.legal-content li {
  color: #334155;
  line-height: 1.75;
}

@media (max-width: 576px) {
  .hero {
    padding: 1.35rem 1.1rem;
  }
  .navbar-brand {
    font-size: 1rem;
  }
}