/* ============================================================
   pay.css — 支付页专用样式
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=Source+Serif+4:ital,opsz,wght@0,8..60,300;0,8..60,400;0,8..60,600;1,8..60,300;1,8..60,400&display=swap');

/* ── 整体布局 ── */
.pay-main {
  min-height: calc(100vh - 60px);
  padding-block: var(--space-xl) var(--space-2xl);
}

.pay-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: var(--space-xl);
  align-items: start;
}

/* ── 左侧：订单摘要 ── */
.order-summary {
  position: sticky;
  top: 80px;
  background-color: var(--bg-alt);
  padding: var(--space-md);
  border-top: 2px solid var(--ink);
}

.order-summary__back {
  margin-bottom: var(--space-md);
}

.order-summary__back a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--size-sm);
  color: var(--ink-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.order-summary__back a:hover { color: var(--ink); }

/* ── 套餐信息块 ── */
.order-pkg {
  margin-bottom: var(--space-md);
}

.order-pkg__name {
  font-family: var(--font-display);
  font-size: var(--size-lg);
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
}

.order-pkg__tagline {
  font-size: var(--size-sm);
  color: var(--ink-muted);
  margin-bottom: var(--space-sm);
}

.order-pkg__includes {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.order-pkg__includes li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: var(--size-xs);
  color: var(--ink-muted);
}

.order-pkg__includes li::before {
  content: '✓';
  color: var(--accent);
  flex-shrink: 0;
  font-size: 0.7rem;
  margin-top: 0.15em;
}

/* ── Skeleton 加载态 ── */
.pkg-card__skeleton,
.order-pkg__skeleton {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.skeleton-line {
  height: 14px;
  background: linear-gradient(90deg, var(--rule) 25%, var(--bg) 50%, var(--rule) 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.4s infinite;
  border-radius: 2px;
}

.skeleton-line--title { height: 22px; width: 75%; }
.skeleton-line--short { width: 50%; }

@keyframes skeleton-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── 价格行 ── */
.order-price-row {
  border-top: 1px solid var(--rule);
  padding-top: var(--space-sm);
  margin-bottom: var(--space-sm);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.order-price-row__inner {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.order-price-row__inner--total {
  padding-top: 0.5rem;
  border-top: 1px solid var(--rule);
}

.order-price-row__label {
  font-size: var(--size-sm);
  color: var(--ink-muted);
}

.order-price-row__val {
  font-family: var(--font-display);
  font-size: var(--size-md);
  letter-spacing: -0.01em;
}

.order-price-row__val--total {
  font-size: var(--size-xl);
  color: var(--accent);
}

.order-price-row__note {
  font-size: var(--size-xs);
  color: var(--ink-muted);
  line-height: 1.5;
  background-color: var(--accent-pale);
  padding: 0.6rem 0.8rem;
}

/* ── 订单说明 ── */
.order-note {
  border-top: 1px solid var(--rule);
  padding-top: var(--space-sm);
}

.order-note p {
  font-size: var(--size-xs);
  color: var(--ink-muted);
  line-height: 1.6;
}

.order-note strong { color: var(--ink); }

/* ── 右侧：表单 ── */
.pay-form-section {
  max-width: 560px;
}

.pay-form-section__title {
  font-family: var(--font-display);
  font-size: var(--size-xl);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
}

/* ── 表单元素 ── */
.pay-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: var(--size-sm);
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.01em;
}

.form-required {
  color: var(--accent);
  margin-left: 0.15rem;
}

.form-hint {
  font-weight: 300;
  color: var(--ink-muted);
  font-size: var(--size-xs);
}

.form-input {
  background-color: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--size-sm);
  padding: 0.75rem 1rem;
  width: 100%;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  outline: none;
  -webkit-appearance: none;
}

.form-input:focus {
  border-color: var(--ink);
  box-shadow: 0 0 0 2px oklch(0.18 0.02 60 / 0.08);
}

.form-input.is-invalid {
  border-color: oklch(0.5 0.18 25);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-error {
  font-size: var(--size-xs);
  color: oklch(0.5 0.18 25);
  min-height: 1.2em;
}

/* ── 支付方式 ── */
.pay-method-group {
  display: flex;
  gap: 0.75rem;
}

.pay-method-option {
  cursor: pointer;
  flex: 1;
}

.pay-method-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.pay-method-option__inner {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--rule);
  background-color: var(--bg);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.pay-method-option input[type="radio"]:checked + .pay-method-option__inner {
  border-color: var(--ink);
  background-color: var(--bg-alt);
}

.pay-method-option__icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: 4px;
}

.pay-method-option__name {
  font-size: var(--size-sm);
  font-weight: 600;
}

/* ── 提交按钮 ── */
.pay-submit-row {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--rule);
}

.pay-submit-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background-color: var(--accent);
  color: var(--white);
  font-family: var(--font-body);
  font-size: var(--size-md);
  font-weight: 600;
  letter-spacing: 0.02em;
  border: none;
  padding: 1rem 1.5rem;
  width: 100%;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.15s ease;
}

.pay-submit-btn:hover:not(:disabled) {
  background-color: oklch(0.44 0.14 48);
  transform: translateY(-1px);
}

.pay-submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pay-submit-btn__amount {
  font-family: var(--font-display);
  font-size: var(--size-lg);
  letter-spacing: -0.01em;
  opacity: 0.9;
}

.pay-submit-hint {
  font-size: var(--size-xs);
  color: var(--ink-muted);
  line-height: 1.5;
}

/* ── 网关未上线提示 ── */
.pay-gateway-notice {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin-top: var(--space-md);
  padding: var(--space-sm);
  background-color: var(--accent-pale);
  font-size: var(--size-sm);
  color: var(--ink-muted);
  line-height: 1.5;
}

.pay-gateway-notice svg {
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 0.1em;
}

.pay-gateway-notice a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ── 响应式 ── */
@media (max-width: 900px) {
  .pay-layout {
    grid-template-columns: 1fr;
  }

  .order-summary {
    position: static;
  }
}

@media (max-width: 480px) {
  .pay-method-group {
    flex-direction: column;
  }
}