/* StockRoc H5 收银台样式 v2 - iOS 风格 + 暗色模式 */
:root {
  --color-primary: #D33F30;
  --color-primary-dark: #B83528;
  --color-success: #34c759;
  --color-warning: #ff9500;
  --color-danger: #ff3b30;
  --color-text: #1c1c1e;
  --color-text-secondary: #6e6e73;
  --color-bg: #f2f2f7;
  --color-card: #ffffff;
  --color-border: #e5e5ea;
  --color-skeleton: #e5e5ea;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --color-skeleton-shine: rgba(255, 255, 255, 0.5);
  --header-gradient: linear-gradient(135deg, #D33F30 0%, #B83528 100%);
  --code-bg: #f2f2f7;
}

/* 暗色模式 */
[data-theme="dark"] {
  --color-text: #ffffff;
  --color-text-secondary: #98989d;
  --color-bg: #000000;
  --color-card: #1c1c1e;
  --color-border: #38383a;
  --color-skeleton: #2c2c2e;
  --color-skeleton-shine: rgba(255, 255, 255, 0.06);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --header-gradient: linear-gradient(135deg, #A02E22 0%, #8A271C 100%);
  --code-bg: #2c2c2e;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
  transition: background var(--transition), color var(--transition);
}

/* ====== 深度链接预选高亮动画 ====== */
@keyframes pulse-highlight {
  0%   { box-shadow: 0 0 0 0 rgba(10, 132, 255, 0.6); }
  50%  { box-shadow: 0 0 0 12px rgba(10, 132, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(10, 132, 255, 0); }
}
.product-card.pulse {
  animation: pulse-highlight 1.2s ease-out;
}

/* ====== Header ====== */
.pay-header {
  position: relative;
  background: var(--header-gradient);
  color: white;
  padding: 28px 16px 40px;
  text-align: center;
  transition: background var(--transition);
}
.pay-header .logo {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 1.5px;
}
.pay-header .tagline {
  font-size: 13px;
  opacity: 0.85;
  margin-top: 6px;
}
.theme-toggle {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.2s;
}
.theme-toggle:hover { transform: scale(1.1); }
.theme-icon { font-size: 18px; }

/* ====== Main ====== */
.pay-main {
  max-width: 600px;
  margin: -20px auto 0;
  padding: 0 16px 110px;
  position: relative;
  z-index: 1;
}

/* ====== Step Bar ====== */
.step-bar {
  display: flex;
  list-style: none;
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 16px 8px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
}
.step-bar li {
  flex: 1;
  text-align: center;
  position: relative;
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-border);
  color: var(--color-text-secondary);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 4px;
  transition: all var(--transition);
}
.step-bar li.active .step-num {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 2px 8px rgba(10, 132, 255, 0.4);
}
.step-name {
  font-size: 12px;
  color: var(--color-text-secondary);
}
.step-bar li.active .step-name {
  color: var(--color-primary);
  font-weight: 600;
}
.step-bar li:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -25%;
  top: 14px;
  width: 50%;
  height: 1px;
  background: var(--color-border);
}

/* ====== Panel ====== */
.panel {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  transition: background var(--transition);
}
.panel-title {
  font-size: 15px;
  font-weight: 600;
  margin: 8px 0 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.panel-title:not(:first-child) {
  margin-top: 24px;
}
.title-icon { font-size: 16px; }
.title-tag {
  display: inline-block;
  background: rgba(10, 132, 255, 0.1);
  color: var(--color-primary);
  font-size: 10px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 10px;
  margin-left: 4px;
}
.title-tag.tag-optional {
  background: var(--color-border);
  color: var(--color-text-secondary);
}

/* ====== Card Grid ====== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
}
/* 版本选择: 5个卡片强制一行 */
#versionGrid {
  grid-template-columns: repeat(5, 1fr);
}
.product-card {
  position: relative;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px 10px;
  text-align: center;
  cursor: pointer;
  background: var(--color-card);
  user-select: none;
  transition: all var(--transition);
}
.product-card:hover {
  border-color: #0a84ff;
  transform: translateY(-1px);
}
.product-card.selected {
  border-color: #0a84ff;
  background: rgba(10, 132, 255, 0.05);
  box-shadow: 0 0 0 2px rgba(10, 132, 255, 0.2);
}
.product-card.selected::after {
  content: '✓';
  position: absolute;
  top: 6px;
  right: 6px;
  width: 18px;
  height: 18px;
  background: #0a84ff;
  color: white;
  border-radius: 50%;
  font-size: 11px;
  line-height: 18px;
  text-align: center;
}
.product-card .name {
  font-weight: 600;
  margin-bottom: 6px;
}
.product-card .price {
  color: var(--color-danger);
  font-size: 17px;
  font-weight: 700;
}
.product-card .price-unit {
  font-size: 11px;
  font-weight: 400;
  color: var(--color-text-secondary);
  margin-left: 2px;
}
.product-card .desc {
  font-size: 11px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}
.loading {
  text-align: center;
  color: var(--color-text-secondary);
  padding: 24px;
  grid-column: 1 / -1;
}

/* ====== Skeleton ====== */
.skeleton-card {
  height: 88px;
  border-radius: var(--radius);
  background: linear-gradient(90deg,
    var(--color-skeleton) 0%,
    var(--color-skeleton-shine) 50%,
    var(--color-skeleton) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ====== Channel Row ====== */
.channel-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.channel-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  background: var(--color-card);
  transition: all var(--transition);
  position: relative;
}
.channel-card input { display: none; }
.channel-card:hover { border-color: #0a84ff; }
.channel-card:has(input:checked) {
  border-color: #0a84ff;
  background: rgba(10, 132, 255, 0.05);
}
.channel-icon-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}
.channel-icon-circle.wechat { background: #07c160; }
.channel-icon-circle.alipay { background: #1677ff; }
.channel-info { flex: 1; min-width: 0; }
.channel-name { font-weight: 600; font-size: 14px; }
.channel-desc {
  font-size: 11px;
  color: var(--color-text-secondary);
  margin-top: 1px;
}
.channel-check {
  color: #0a84ff;
  font-size: 18px;
  font-weight: 700;
  opacity: 0;
  transition: opacity var(--transition);
}
.channel-card:has(input:checked) .channel-check { opacity: 1; }

/* ====== Coupon Row ====== */
.coupon-row {
  display: flex;
  gap: 8px;
}

/* ====== 月数选择 ====== */
.month-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.month-chip {
  flex: 1 1 0;
  min-width: 92px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 12px 8px 10px;
  border: 1.5px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-bg-card);
  cursor: pointer;
  transition: all .18s ease;
}
.month-chip input { position: absolute; opacity: 0; pointer-events: none; }
.month-chip .month-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}
.month-chip .month-badge {
  font-size: 11px;
  color: var(--color-text-secondary);
  background: var(--color-bg);
  padding: 1px 6px;
  border-radius: 8px;
}
.month-chip .month-badge.best {
  color: #fff;
  background: var(--color-primary);
}
.month-chip:hover {
  border-color: #0a84ff;
  transform: translateY(-1px);
}
.month-chip:has(input:checked) {
  border-color: #0a84ff;
  background: rgba(10, 132, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.15);
}
.month-chip:has(input:checked) .month-text {
  color: #0a84ff;
}
.month-chip:has(input:checked)::after {
  content: '✓';
  position: absolute;
  top: 4px;
  right: 4px;
  width: 16px;
  height: 16px;
  background: #0a84ff;
  color: white;
  border-radius: 50%;
  font-size: 10px;
  line-height: 16px;
  text-align: center;
}

@media (max-width: 540px) {
  .month-chip { min-width: calc(33% - 8px); }
}
.coupon-input {
  flex: 1;
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  background: var(--color-card);
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition);
}
.coupon-input:focus { border-color: var(--color-primary); }
.coupon-input.error {
  border-color: var(--color-danger);
  animation: shake 0.4s cubic-bezier(.36,.07,.19,.97) both;
}
@keyframes shake {
  10%, 90% { transform: translateX(-1px); }
  20%, 80% { transform: translateX(2px); }
  30%, 50%, 70% { transform: translateX(-4px); }
  40%, 60% { transform: translateX(4px); }
}
.coupon-apply-btn {
  background: var(--color-card);
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.coupon-apply-btn:hover {
  background: var(--color-primary);
  color: white;
}
.coupon-apply-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.coupon-result {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
  animation: slideIn 0.2s ease;
}
.coupon-result.success {
  background: rgba(52, 199, 89, 0.1);
  color: var(--color-success);
}
.coupon-result.error {
  background: rgba(255, 59, 48, 0.1);
  color: var(--color-danger);
}
.coupon-result .remove-coupon {
  margin-left: auto;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  font-size: 18px;
  padding: 0 4px;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ====== Upgrade Hint ====== */
.upgrade-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 10px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: bold;
  color: #e53935;
  background: rgba(229, 57, 53, 0.06);
  border-radius: var(--radius-sm);
}

/* ====== Price Detail ====== */
.price-detail {
  margin-top: 16px;
  padding: 12px;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
}
.price-line {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  font-size: 14px;
}
.price-line.discount {
  color: var(--color-danger);
}

/* ====== Total Bar ====== */
.total-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-card);
  border-top: 1px solid var(--color-border);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.06);
  z-index: 100;
  transition: background var(--transition);
}
.total-text {
  font-size: 13px;
  color: var(--color-text-secondary);
}
.total-text #totalAmount {
  color: var(--color-danger);
  font-size: 22px;
  font-weight: 700;
  margin-left: 4px;
}
.btn-primary {
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius);
  padding: 12px 36px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  min-width: 130px;
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-dark);
  transform: scale(1.02);
}
.btn-primary:active:not(:disabled) { transform: scale(0.98); }
.btn-primary:disabled {
  background: #c7c7cc;
  cursor: not-allowed;
}
.btn-primary.loading .btn-text { opacity: 0; }
.btn-primary.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 18px;
  margin: -9px 0 0 -9px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ====== Toast ====== */
.toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  background: rgba(0, 0, 0, 0.85);
  color: white;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: all 0.2s;
  max-width: 80%;
  text-align: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.toast.show {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

/* ====== Footer ====== */
.pay-footer {
  text-align: center;
  padding: 20px 16px 24px;
  color: var(--color-text-secondary);
  font-size: 12px;
}
.pay-footer a { color: var(--color-primary); text-decoration: none; }
.pay-footer .subtle { font-size: 11px; opacity: 0.7; margin-top: 4px; }

/* ====== QR Code Page ====== */
.qrcode-wrap {
  text-align: center;
  padding: 24px 16px;
}
.qrcode-img {
  width: 240px;
  height: 240px;
  margin: 16px auto;
  display: block;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px;
  background: white;
  box-shadow: var(--shadow-md);
  animation: fadeIn 0.4s ease;
}
.qrcode-tip {
  margin: 16px 0;
  color: var(--color-text-secondary);
}
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 13px;
  margin-bottom: 8px;
}
.status-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.status-badge.waiting {
  background: rgba(255, 149, 0, 0.15);
  color: var(--color-warning);
}
.status-badge.waiting::before {
  animation: blink 1.5s infinite;
}
.status-badge.success {
  background: rgba(52, 199, 89, 0.15);
  color: var(--color-success);
}
.status-badge.failed {
  background: rgba(255, 59, 48, 0.15);
  color: var(--color-danger);
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

/* 成功动画 */
.success-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--color-success);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 40px;
  font-weight: 700;
  animation: successPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes successPop {
  0% { transform: scale(0); }
  60% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

/* 移动端 */
@media (max-width: 480px) {
  .pay-main { padding: 0 12px 100px; }
  .panel { padding: 14px; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  /* 版本选择保持一行5个 */
  #versionGrid { grid-template-columns: repeat(5, 1fr); }
  .channel-row { grid-template-columns: 1fr; }
  .btn-primary { padding: 12px 24px; min-width: 110px; }
  /* 小屏二维码 */
  .qrcode-img { width: 200px; height: 200px; padding: 8px; }
  /* 小屏优惠码输入 */
  .coupon-row { flex-direction: column; gap: 8px; }
  .coupon-apply-btn { width: 100%; }
  /* 小屏 month-row 紧凑化 */
  .month-row { gap: 10px; }
  .month-chip { min-width: calc(33% - 8px); padding: 12px 4px 10px; }
  .month-chip .month-text { font-size: 13px; }
  /* 小屏 step-bar 紧凑化 */
  .step-bar { padding: 12px 6px; }
  .step-bar li:not(:last-child)::after { right: -30%; width: 60%; }
  .step-num { width: 24px; height: 24px; font-size: 12px; }
  .step-name { font-size: 11px; }
  /* 小屏 total-bar 调整 */
  .total-bar { padding: 10px 12px; }
  .total-text { font-size: 12px; }
  .total-text #totalAmount { font-size: 20px; }
  /* 小屏 header padding 减少 */
  .pay-header { padding: 22px 14px 32px; }
  .pay-header .logo { font-size: 22px; }
}

/* 超小屏 (iPhone SE 320 宽度) */
@media (max-width: 360px) {
  .pay-main { padding: 0 8px 90px; }
  .panel-title { font-size: 14px; }
  .product-card { padding: 10px 6px; }
  .product-card .price { font-size: 15px; }
  .qrcode-img { width: 180px; height: 180px; }
}

/* 横屏手机 / 大屏 */
@media (min-width: 768px) {
  .pay-main { max-width: 720px; padding-bottom: 130px; }
  .pay-header { padding: 36px 16px 48px; }
  .pay-header .logo { font-size: 30px; }
}

/* 暗色模式微调 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ====== 通用工具类 ====== */
code {
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  font-size: 13px;
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--color-text);
  word-break: break-all;
}
.form-error {
  color: var(--color-danger);
  font-size: 13px;
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 4px;
  animation: slideIn 0.2s ease;
}
.form-error::before {
  content: '!';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-danger);
  color: white;
  font-weight: 700;
  font-size: 11px;
  flex-shrink: 0;
}
.divider {
  height: 1px;
  background: var(--color-border);
  margin: 16px 0;
  border: none;
}
.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: middle;
}