:root {
  --blue: #2865c8;
  --text: #1f2937;
  --muted: #666;
  --surface: #fff;
  --soft: #f6f8fc;
  --disabled: #e5e7eb;
  --disabled-text: #6b7280;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  color: var(--text);
  background: var(--soft);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.6;
}

.container { width: min(1100px, calc(100% - 40px)); margin: auto; padding: 40px 0; }
.hero { position: relative; padding: 56px 20px 70px; text-align: center; }
.hero h1 { margin: 22px 0 16px; color: var(--blue); font-size: clamp(36px, 6vw, 48px); line-height: 1.1; }
.hero p { margin: 0; color: var(--muted); font-size: clamp(18px, 3vw, 20px); }

.language-switch { position: absolute; top: 0; right: 0; display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: 14px; }
.language-label { display: inline-flex; align-items: center; gap: 5px; }
.language-label svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.7; }
.language-switch select { padding: 7px 30px 7px 10px; border: 1px solid #cbd5e1; border-radius: 10px; color: var(--text); background: var(--surface); font: inherit; }
.language-switch select:focus-visible, .button:focus-visible, .copy-button:focus-visible { outline: 3px solid rgba(40, 101, 200, .25); outline-offset: 2px; }

.card { margin: 25px 0; padding: 30px; border-radius: 24px; background: var(--surface); box-shadow: 0 10px 40px rgba(0, 0, 0, .08); }
.app { display: flex; align-items: center; gap: 25px; }
.app > div { min-width: 0; flex: 1; }
.icon { flex: 0 0 100px; width: 100px; height: 100px; border-radius: 22px; background: #eee; }
.card h2 { margin-top: 0; }
.card p { color: var(--muted); }
.store-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.button { display: inline-flex; align-items: center; justify-content: center; padding: 10px 20px; border: 0; border-radius: 20px; color: #fff; background: var(--blue); font: inherit; text-decoration: none; }
.button:hover { filter: brightness(.95); }
.button.store { background: #111827; }
.button.unavailable { color: var(--disabled-text); background: var(--disabled); cursor: not-allowed; box-shadow: none; }
.button.unavailable:hover { filter: none; }

.contact-list { display: flex; flex-direction: column; gap: 12px; margin-top: 18px; }
.contact-item { display: flex; align-items: center; gap: 12px; }
.contact-value { min-width: 240px; overflow-wrap: anywhere; }
.copy-button { padding: 6px 14px; border: 1px solid var(--blue); border-radius: 16px; color: var(--blue); background: var(--surface); cursor: pointer; font: inherit; }
.copy-button:hover { background: #eef4ff; }
.footer { padding: 40px; color: #888; text-align: center; }

@media (max-width: 700px) {
  .container { width: min(100% - 24px, 1100px); padding: 16px 0 28px; }
  .hero { padding: 16px 0 30px; }
  .hero h1 { margin: 16px 0 10px; font-size: 32px; }
  .hero p { font-size: 16px; }
  .language-switch { position: static; justify-content: flex-end; margin-bottom: 6px; }
  .language-label { gap: 4px; font-size: 12px; }
  .language-label svg { width: 14px; height: 14px; }
  .language-switch select { padding: 6px 28px 6px 9px; font-size: 13px; }

  .card { margin: 12px 0; padding: 16px; border-radius: 18px; }
  .app { flex-direction: row; align-items: flex-start; gap: 14px; text-align: left; }
  .icon { flex-basis: 68px; width: 68px; height: 68px; border-radius: 16px; }
  .card h2 { margin: 0 0 4px; font-size: 18px; line-height: 1.3; }
  .app p { display: -webkit-box; margin: 0; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 2; font-size: 14px; line-height: 1.55; }
  .store-actions { gap: 8px; margin-top: 10px; }
  .store-actions .button { flex: 1 1 0; min-width: 0; padding: 8px 10px; border-radius: 12px; font-size: 13px; white-space: nowrap; }
  .store-actions .button:nth-child(3) { flex-basis: 100%; }

  .contact-item { align-items: flex-start; }
  .contact-value { min-width: 0; flex: 1; text-align: left; }
  .copy-button { flex: 0 0 auto; }
}