:root {
  --ink: #12201f;
  --paper: #f7f1e5;
  --muted: rgba(247, 241, 229, 0.72);
  --line: rgba(247, 241, 229, 0.16);
  --teal: #1b8f7f;
  --gold: #f1cf7a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #0d1616;
}

button,
input {
  font: inherit;
}

.pay-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 40px 18px;
  color: var(--paper);
  background:
    linear-gradient(120deg, rgba(8, 58, 67, 0.94), rgba(20, 31, 28, 0.88)),
    radial-gradient(circle at 14% 12%, rgba(241, 207, 122, 0.22), transparent 36%),
    linear-gradient(180deg, #0b1514, #162522);
}

.pay-shell {
  width: min(1120px, 100%);
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(360px, 1fr);
  gap: 28px;
  align-items: stretch;
}

.identity-panel,
.payment-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.identity-panel {
  padding: clamp(26px, 4vw, 46px);
}

.payment-panel {
  padding: clamp(18px, 3vw, 28px);
}

.kicker {
  margin: 0 0 16px;
  color: #98ded5;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(40px, 7vw, 78px);
  line-height: 0.95;
}

.intro {
  margin: 22px 0 30px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.field {
  display: grid;
  gap: 9px;
  margin-bottom: 16px;
}

.field span,
.memo-box span {
  color: rgba(247, 241, 229, 0.64);
  font-size: 13px;
}

.field input {
  width: 100%;
  min-height: 50px;
  border: 1px solid rgba(247, 241, 229, 0.22);
  border-radius: 8px;
  outline: none;
  background: rgba(4, 10, 10, 0.42);
  color: #fffaf0;
  padding: 0 14px;
  font-size: 17px;
}

.field input:focus {
  border-color: #98ded5;
  box-shadow: 0 0 0 3px rgba(152, 222, 213, 0.16);
}

.memo-box {
  margin-top: 26px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 12px;
  align-items: center;
  border: 1px solid rgba(247, 241, 229, 0.12);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.22);
  padding: 14px;
}

.memo-box strong {
  color: #fff;
  font-size: 17px;
  word-break: break-word;
}

.memo-box button,
.method-tabs button,
.refresh-btn {
  min-height: 40px;
  border: 0;
  border-radius: 8px;
  padding: 0 14px;
  font-weight: 800;
  cursor: pointer;
}

.memo-box button {
  grid-row: 1 / span 2;
  grid-column: 2;
  color: #1f2119;
  background: var(--gold);
}

.method-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 18px;
}

.method-tabs button {
  color: rgba(247, 241, 229, 0.78);
  background: rgba(255, 255, 255, 0.1);
}

.method-tabs button.active {
  color: var(--ink);
  background: var(--paper);
}

.qr-card {
  border-radius: 8px;
  background: #faf8f2;
  color: var(--ink);
  padding: clamp(16px, 2.6vw, 24px);
}

.qr-header,
.qr-footer {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
}

.qr-header span,
.qr-footer span {
  color: #69726c;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.qr-header h2 {
  margin: 4px 0 0;
  font-size: clamp(21px, 3vw, 30px);
}

.refresh-btn {
  background: var(--teal);
  color: #fff;
  white-space: nowrap;
}

.qr-frame {
  width: min(100%, 430px);
  aspect-ratio: 1;
  margin: 20px auto;
  display: grid;
  place-items: center;
  border: 1px solid #e8e0d1;
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
}

.qr-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qr-footer strong {
  max-width: 62%;
  text-align: right;
  word-break: break-word;
}

@media (max-width: 820px) {
  .pay-page {
    place-items: start center;
    padding-top: 22px;
  }

  .pay-shell {
    grid-template-columns: 1fr;
  }

  .qr-header,
  .qr-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .qr-footer strong {
    max-width: 100%;
    text-align: left;
  }
}

.payment-notice {
  margin-top: 8px;
  border: 1px solid rgba(152, 222, 213, 0.2);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.2);
  padding: 18px 20px;
}

.payment-notice__title {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.payment-notice__steps {
  margin: 0;
  padding-left: 1.4em;
  color: rgba(247, 241, 229, 0.86);
  font-size: 15px;
  line-height: 1.75;
}

.payment-notice__steps li + li {
  margin-top: 8px;
}