:root {
  --deep-blue: #004466;
  --turquoise: #0099cc;
  --bg: #f4f4f4;
  --text: #333333;
  --aqua: #aad8d3;
  --card: #ffffff;
  --border: rgba(0, 0, 0, .10);
  --shadow: 0 8px 24px rgba(0, 0, 0, .08);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 18px 14px 90px;
}

.support-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 14px;
  display: flex;
  justify-content: center;
  pointer-events: none;
  z-index: 999;
}

.whatsapp-btn {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-radius: 999px;
  background: #25D366;
  color: #ffffff;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 12px 28px rgba(0, 0, 0, .20);
  transition: transform .06s ease, filter .12s ease;
  white-space: nowrap;
  border: 1px solid rgba(255, 255, 255, .22);
}

.whatsapp-btn:hover {
  filter: brightness(1.05);
}

.whatsapp-btn:active {
  transform: translateY(1px);
}

.card {
  margin-top: 14px;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  border: 1px solid var(--border);
}

.app-header {
  padding: 14px;
  background: #fff;
  border-bottom: 1px solid rgba(0, 0, 0, .08);
}

.app-title {
  margin: 0;
  color: var(--deep-blue);
  font-size: 16px;
  font-weight: 900;
}

.app-sub {
  margin: 6px 0 0;
  font-size: 12px;
  opacity: .85;
}

.app-body {
  padding: 14px;
  background: linear-gradient(180deg, rgba(170, 216, 211, .18), rgba(170, 216, 211, 0));
}

.search-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.hkq-search {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, .14);
  background: #fff;
  font: inherit;
}

.hkq-clear {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, .14);
  background: #fff;
  font-weight: 900;
  cursor: pointer;
  flex: 0 0 auto;
}

.hint {
  margin: 8px 0 12px;
  font-size: 12px;
  color: rgba(0,0,0,.7);
}

.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.service-card,
.service-card:visited,
.service-card:hover,
.service-card:active {
  display: block;
  text-decoration: none;
  color: inherit;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, .10);
  border-radius: 14px;
  padding: 14px;
  box-shadow: 0 6px 18px rgba(0,0,0,.06);
}

.service-card.hidden {
  display: none;
}

.service-card-title {
  margin: 0 0 6px;
  color: var(--deep-blue);
  font-size: 16px;
  font-weight: 850;
}

.service-card-desc {
  margin: 0;
  font-size: 13px;
  color: rgba(0,0,0,.75);
}

.empty-state {
  margin: 12px 0 0;
  font-size: 13px;
  color: rgba(0,0,0,.72);
}

@media (min-width: 700px) {
  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}