/* Contact page: one balanced panel, with navigation on its own full-width row. */
.contact-panel {
  --contact-inset: clamp(28px, 3.4vw, 48px);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  align-items: stretch;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--surface);
  box-shadow: var(--shadow-lg);
}

/* ---- 大海蓝天雁飞过 Hero 特效（叠在 page-hero 上） ---- */
.page-hero.sky-birds { background: #0a3860; }
.page-hero .hero-sky {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none; display: block;
}
.page-hero.sky-birds .container { z-index: 2; }
.page-hero.sky-birds h1,
.page-hero.sky-birds .sub { text-shadow: 0 2px 16px rgba(4, 26, 44, .55); }
@media (prefers-reduced-motion: reduce) {
  .page-hero .hero-sky { display: none; }
}
.contact-panel > .reveal { display: flex; min-width: 0; }
.contact-panel .info-card, .contact-panel .content-card {
  width: 100%; padding: var(--contact-inset);
  border: 0; border-radius: 0; box-shadow: none;
}
.contact-panel .contact-details {
  position: relative; overflow: hidden; isolation: isolate;
  display: flex; flex-direction: column;
  color: #e5eff6;
  background: radial-gradient(ellipse at 100% 100%, #285b70 0%, transparent 65%),
    linear-gradient(145deg, #142d43, #1c4258);
}
.contact-details::after {
  content: ''; position: absolute; z-index: -1;
  width: 340px; height: 340px; right: -180px; bottom: -190px;
  border: 1px solid rgba(170,215,233,.16); border-radius: 50%;
  box-shadow: 0 0 0 44px rgba(170,215,233,.035), 0 0 0 88px rgba(170,215,233,.025);
  pointer-events: none;
}
.contact-eyebrow {
  display: block; color: var(--brand-text); font-size: 11px;
  font-weight: 700; letter-spacing: .18em; line-height: 1.5;
  margin-bottom: 10px;
}
.contact-panel .contact-heading {
  font-size: clamp(25px, 2.4vw, 30px); font-weight: 700;
  line-height: 1.3; letter-spacing: -.02em; color: var(--ink-900);
  margin: 0 0 14px;
}
.contact-details .contact-eyebrow { color: #9fd0e3; }
.contact-details .contact-heading { color: #f0f6fa; }
.contact-details > ul { flex: 1; display: flex; flex-direction: column; margin-top: 18px; }
.contact-panel .contact-details li {
  flex: 1; align-items: flex-start; gap: 18px;
  padding: 22px 0; border-bottom-color: rgba(197,221,235,.16);
}
.contact-panel .contact-details li:last-child { padding-bottom: 0; }
.contact-details li > span:last-child { min-width: 0; }
.contact-panel .contact-details .ic {
  flex-shrink: 0; width: 42px; height: 42px; border-radius: 13px;
  background: rgba(158,207,228,.1); color: #a9dcec;
  border: 1px solid rgba(185,220,238,.18);
}
.contact-panel .contact-details .t { color: #adcadc; font-size: 12px; letter-spacing: .04em; }
.contact-panel .contact-details .v {
  color: #edf4f9; font-size: 15px; line-height: 1.85; margin-top: 6px;
  word-break: normal; overflow-wrap: anywhere;
}
.contact-details .contact-secondary { color: #bfd1df; font-size: 13px; font-weight: 400; }
.contact-details span.contact-secondary { display: block; margin-top: 5px; }
.contact-number { display: inline-block; }
.contact-panel .contact-message { background: var(--surface); }
.contact-intro { color: var(--ink-500); font-size: 14px; line-height: 1.8; margin-bottom: 28px; }
.contact-message .form-grid { gap: 20px 18px; }
.contact-message .field { min-width: 0; }
.contact-message .field label { font-size: 13px; }
.contact-message .field input, .contact-message .field textarea {
  border-radius: 10px; padding: 12px 14px; font-size: 14px;
  border-color: var(--line); background: var(--bg-softer);
}
.contact-message .field input:focus, .contact-message .field textarea:focus {
  border-color: var(--blue-500); box-shadow: var(--focus-ring);
}
.contact-message .field textarea { min-height: 152px; }
.contact-message .field .req, .contact-message .field .err { color: #ae3349; }
.contact-message .field.invalid input, .contact-message .field.invalid textarea { border-color: #ae3349; }
.contact-message #submit-btn { border-radius: 12px; padding: 15px 24px; font-size: 15px; }
.contact-message #submit-btn:hover { transform: translateY(-2px); }
.contact-message #submit-btn + span { line-height: 1.7; }
.contact-panel .contact-map {
  grid-column: 1 / -1; margin: 0; border: 0; border-top: 1px solid var(--line);
  border-radius: 0; background: var(--surface-2);
}
.contact-map-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; padding: 24px var(--contact-inset);
}
.contact-map-head .contact-eyebrow { font-size: 10px; margin-bottom: 5px; }
.contact-map-head h3 { color: var(--ink-900); font-size: 18px; line-height: 1.4; }
.contact-map-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.contact-map-actions .btn { border: 1px solid var(--line); border-radius: 10px; background: var(--surface); }
.contact-map-actions .btn:hover { background: var(--blue-100); }
.contact-map-frame { display: block; width: 100%; height: 280px; border: 0; }
.map-stage { position: relative; }
.map-ripple {
  position: absolute; left: 50%; top: 53.33%;
  transform: translate(-50%, -50%); z-index: 6; pointer-events: none;
}
.map-ripple-dot { position: relative; display: block; width: 20px; height: 20px; }
.map-ripple-dot::before {
  content: ''; position: absolute; left: 50%; top: 50%; width: 15px; height: 15px;
  margin: -7.5px 0 0 -7.5px; border-radius: 50%;
  background: #e6402f; border: 3px solid #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .35); z-index: 2;
}
.map-ripple-dot::after {
  content: ''; position: absolute; left: 50%; top: 50%; width: 15px; height: 15px;
  margin: -7.5px 0 0 -7.5px; border-radius: 50%;
  background: rgba(230, 64, 47, .45); z-index: 1;
  animation: mapRipple 1.7s ease-out infinite;
}
@keyframes mapRipple {
  0%   { transform: scale(.6); opacity: .85; }
  100% { transform: scale(3.8); opacity: 0; }
}
[data-theme="dark"] .map-ripple-dot::before { background: #ff5a45; }
[data-theme="dark"] .map-ripple-dot::after { background: rgba(255, 90, 69, .5); }
[data-theme="dark"] .contact-panel .contact-details {
  background: radial-gradient(ellipse at 100% 100%, #214e63 0%, transparent 65%),
    linear-gradient(145deg, #112a3e, #193b51);
}
[data-theme="dark"] .contact-message .field .req,
[data-theme="dark"] .contact-message .field .err { color: #ffa4b3; }
[data-theme="dark"] .contact-message .field.invalid input,
[data-theme="dark"] .contact-message .field.invalid textarea { border-color: #ffa4b3; }
@media (max-width: 900px) {
  .contact-panel { grid-template-columns: 1fr; --contact-inset: 32px; border-radius: 22px; }
  .contact-panel .contact-details li { flex: initial; padding: 18px 0; }
  .contact-details > ul { margin-top: 6px; }
}
@media (max-width: 540px) {
  .contact-panel { --contact-inset: 24px; }
  .contact-message .form-grid { grid-template-columns: 1fr; gap: 18px; }
  .contact-map-head { align-items: flex-start; flex-direction: column; gap: 16px; }
  .contact-map-actions { width: 100%; }
  .contact-map-actions .btn { flex: 1; padding: 10px; font-size: 12px; }
  .contact-map-frame { height: 250px; }
}
@media (prefers-reduced-motion: reduce) {
  .contact-panel .btn { transition: none; }
  .map-ripple-dot::after { animation: none; }
}