:root {
  --bg: #120f0d;
  --card: rgba(23, 18, 15, 0.82);
  --card-strong: rgba(32, 25, 21, 0.92);
  --line: rgba(255, 255, 255, 0.1);
  --text: #fff7ed;
  --muted: #d6c7bb;
  --accent: #fb923c;
  --accent-2: #fdba74;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(251, 146, 60, 0.32), transparent 28%),
    radial-gradient(circle at bottom right, rgba(245, 158, 11, 0.18), transparent 24%),
    linear-gradient(145deg, #120f0d 0%, #1c1612 48%, #0d1117 100%);
}
.page-shell {
  position: relative;
  min-height: 100vh;
  padding: 28px;
  overflow: hidden;
}
.glow {
  position: absolute;
  border-radius: 999px;
  filter: blur(80px);
  opacity: 0.55;
}
.glow-a {
  width: 280px;
  height: 280px;
  top: -80px;
  left: -40px;
  background: rgba(249, 115, 22, 0.34);
}
.glow-b {
  width: 320px;
  height: 320px;
  right: -80px;
  bottom: -100px;
  background: rgba(245, 158, 11, 0.22);
}
.support-card {
  position: relative;
  max-width: 1120px;
  margin: 0 auto;
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: linear-gradient(180deg, rgba(30, 24, 20, 0.92), rgba(18, 15, 13, 0.88));
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}
.hero {
  display: grid;
  gap: 10px;
  margin-bottom: 28px;
}
.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.26em;
  font-size: 12px;
  color: var(--accent-2);
}
h1 {
  margin: 0;
  font-size: clamp(34px, 6vw, 62px);
  line-height: 0.98;
}
.subtitle {
  margin: 0;
  font-size: clamp(15px, 2vw, 20px);
  color: var(--muted);
}
.content-grid {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 26px;
  align-items: stretch;
}
.qr-panel,
.info-panel {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.03);
}
.qr-panel {
  padding: 22px;
}
.qr-frame {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 20px;
  background: linear-gradient(180deg, #fffaf2, #f0e4d7);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.qr-link {
  text-decoration: none;
}
.qr-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.18);
}
.qr-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.qr-fallback {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  gap: 8px;
  padding: 24px;
  color: #5b4330;
  background: linear-gradient(180deg, #fffaf2, #f0e4d7);
  text-align: center;
}
.qr-fallback[hidden] {
  display: none !important;
}
.qr-fallback strong { font-size: 24px; }
.qr-tip {
  margin: 16px 4px 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}
.info-panel {
  padding: 24px;
  display: grid;
  gap: 16px;
}
.info-block {
  padding: 18px 18px 20px;
  border-radius: 18px;
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.06);
}
.info-block.accent {
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.18), rgba(251, 146, 60, 0.08));
}
.info-block.soft {
  background: var(--card-strong);
}
.block-label {
  display: block;
  margin-bottom: 10px;
  color: var(--accent-2);
  font-size: 13px;
  letter-spacing: 0.08em;
}
.info-block strong {
  font-size: clamp(20px, 3.4vw, 30px);
  word-break: break-all;
}
.info-block p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
  font-size: 15px;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}
.btn {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 14px 20px;
  font-size: 15px;
  cursor: pointer;
  transition: transform .18s ease, opacity .18s ease, box-shadow .18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  color: #2a1302;
  background: linear-gradient(135deg, #fdba74, #fb923c);
  box-shadow: 0 14px 30px rgba(249, 115, 22, 0.28);
}
.btn-secondary {
  color: var(--text);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
}
.toast {
  min-height: 24px;
  font-size: 14px;
  color: var(--accent-2);
}
@media (max-width: 860px) {
  .page-shell { padding: 16px; }
  .support-card { padding: 22px; border-radius: 24px; }
  .content-grid { grid-template-columns: 1fr; }
}