:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --text-main: #121826;
  --text-sub: #5b6579;
  --line: #e5e9f2;
  --primary: #2f6bff;
  --accent: #ff6a3d;
  --radius: 16px;
  --shadow: 0 8px 24px rgba(18, 24, 38, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC",
    "Helvetica Neue", Arial, sans-serif;
}

.mobile-page {
  min-height: 100vh;
}

.container {
  width: min(100%, 560px);
  margin: 0 auto;
  padding: 14px 14px 28px;
}

.hero,
.section {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero {
  padding: 16px;
}

.tag {
  display: inline-block;
  margin: 0;
  padding: 4px 10px;
  border-radius: 999px;
  background: #ecf2ff;
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
}

h1 {
  margin: 10px 0 4px;
  font-size: 28px;
  line-height: 1.2;
}

.subtitle {
  margin: 0 0 12px;
  color: var(--text-sub);
  font-size: 14px;
}

.hero-image {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
}

.section {
  margin-top: 12px;
  padding: 14px;
}

.section h2 {
  margin: 0;
  font-size: 18px;
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.badge {
  font-size: 12px;
  color: var(--text-sub);
}

.exchange-list {
  display: grid;
  gap: 10px;
}

.exchange-card {
  text-decoration: none;
  color: inherit;
  display: grid;
  grid-template-columns: 44px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
}

.name {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
}

.action {
  margin: 4px 0 0;
  font-size: 12px;
  color: var(--text-sub);
}

.rebate {
  display: inline-block;
  min-width: 64px;
  text-align: center;
  padding: 5px 8px;
  border-radius: 10px;
  border: 1px solid #ffc3b1;
  color: #ba3d1f;
  background: #fff7f3;
  font-weight: 700;
}

.tg p {
  margin: 8px 0 12px;
  color: var(--text-sub);
  font-size: 14px;
}

.tg-qr {
  width: 100%;
  max-width: 280px;
  display: block;
  margin: 0 auto;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
}

.admin-page {
  padding: 16px;
  width: min(100%, 780px);
  margin: 0 auto;
}

.admin-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  padding: 14px;
  margin-bottom: 12px;
}

.admin-card h2 {
  margin: 0 0 10px;
}

input,
textarea,
button {
  font: inherit;
}

.field {
  margin-bottom: 10px;
}

.field label {
  display: block;
  margin-bottom: 4px;
  font-size: 13px;
  color: var(--text-sub);
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  background: #fff;
}

.field textarea {
  min-height: 220px;
}

.btn-row {
  display: flex;
  gap: 8px;
}

button {
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 600;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-ghost {
  background: #eef3ff;
  color: #2647a1;
}

.status {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-sub);
}