:root {
    --primary-color: #3c7a6b;
    --primary-light: #5fa28f;
    --primary-dark: #265a4d;
    --secondary-color: #445b8a;
    --accent-color: #ffb960;
    --light-bg: #f6f7fb;
    --border-color: #e6e8ef;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --shadow: 0 8px 24px rgba(17, 24, 39, 0.08);
    --card-shadow: 0 12px 28px rgba(17, 24, 39, 0.12);
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
body {
    font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Microsoft Yahei", sans-serif;
    max-width: 960px;
    padding: 24px;
    background: linear-gradient(135deg, #eef2f7 0%, #e6f1ec 100%);
    line-height: 1.7;
}
.container {
    border-radius: 20px;
    padding: 36px;
    border: 1px solid rgba(255,255,255,0.6);
    backdrop-filter: blur(6px);
}
.header {
    margin-bottom: 28px;
    padding-bottom: 18px;
}
.header h2 {
    color: var(--primary-dark);
    margin-bottom: 8px;
    font-size: 32px;
    font-weight: 700;
    letter-spacing: 0.3px;
}
.header p {
    font-size: 15px;
}
.input-group {
    margin: 18px 0;
    grid-template-columns: 120px 1fr;
    gap: 14px;
}
.input-group label {
    font-weight: 600;
    letter-spacing: 0.2px;
}
select, input {
    padding: 12px 16px;
    border-radius: 12px;
}
.short-input {
    width: 70%;
    min-width: 140px;
}
select:focus, input:focus {
    box-shadow: 0 0 0 3px rgba(60, 122, 107, 0.18);
}
.input-error {
    animation: errorBlink 1.2s ease-in-out infinite;
    border-color: #ef4444 !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2) !important;
}
@keyframes errorBlink {
    0% { border-color: #ef4444; box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.18); }
    50% { border-color: #ef4444; box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.35); }
    100% { border-color: #ef4444; box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.18); }
}
button {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 12px;
    font-weight: 600;
    margin: 22px 0;
    box-shadow: 0 10px 18px rgba(17, 24, 39, 0.12);
    letter-spacing: 0.3px;
    transform: translateZ(0);
}
button:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    box-shadow: 0 16px 28px rgba(17, 24, 39, 0.18);
}
button:active {
    box-shadow: 0 6px 10px rgba(17, 24, 39, 0.12);
}
#result-container {
    margin-top: 28px;
}
#result-container h3 {
    font-weight: 700;
    margin-bottom: 18px;
}
.name-card {
    padding: 22px;
    border-radius: 16px;
}
.name-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 30px rgba(17, 24, 39, 0.18);
    border-color: rgba(60, 122, 107, 0.35);
}
.name-card:before {
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    opacity: 0.9;
}
.name-card .name {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 0.8px;
}
.name-meaning {
    line-height: 1.7;
    padding: 12px;
    border-radius: 12px;
    border-left: 4px solid var(--primary-light);
}
.loading {
    padding: 24px;
}
.loading-spinner {
    border: 4px solid rgba(60, 122, 107, 0.12);
    width: 38px;
    height: 38px;
    margin: 0 auto 12px;
}
@media (max-width: 768px) {
    body { padding: 16px; }
    .container { padding: 22px; border-radius: 16px; }
    .input-group { gap: 10px; }
    .name-list { gap: 16px; }
    .name-card { padding: 16px; }
    .name-card .name { font-size: 24px; }
}
@media (max-width: 480px) {
    .name-list { grid-template-columns: 1fr; }
}
.site-footer {
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.6);
}
.footer-section h4 {
    color: var(--primary-dark);
    font-weight: 700;
    margin-bottom: 14px;
}
.footer-section h4:after {
    width: 44px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}
.social-icons a:hover {
    color: #ffffff;
}
.footer-bottom {
    padding: 16px 30px;
}
@media (min-width: 1024px) {
    .name-list { grid-template-columns: repeat(3, 1fr); }
}
.tool-info {
  margin-top: 28px;
}
.tool-info h3 {
  color: var(--primary-dark);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}
.tool-info p {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 10px;
}
.tool-info ul {
  color: var(--text-light);
  padding-left: 18px;
  margin: 8px 0 12px 0;
}