/* ═══════════════════════════════════════════════════════════
   Fountrace 购买页 — style.css
   设计方向：Refined Tech Premium（精致科技风）
   特色：深色优先 + 几何网格背景 + 光晕装饰 + 玻璃态卡片
   ═══════════════════════════════════════════════════════════ */

/* ── 设计令牌 (Design Tokens) ── */
:root {
  /* 色彩 */
  --color-primary: #2563EB;
  --color-primary-light: #3B82F6;
  --color-primary-dark: #1D4ED8;
  --color-primary-glow: rgba(37, 99, 235, 0.15);
  --color-success: #10B981;
  --color-success-glow: rgba(16, 185, 129, 0.12);
  --color-warning: #F59E0B;
  --color-error: #EF4444;

  /* 表面 */
  --bg-base: #0B0F1A;
  --bg-surface: rgba(15, 23, 42, 0.75);
  --bg-card: rgba(20, 30, 55, 0.6);
  --bg-card-hover: rgba(25, 38, 68, 0.7);
  --bg-input: rgba(15, 23, 42, 0.8);
  --border-subtle: rgba(148, 163, 184, 0.1);
  --border-card: rgba(148, 163, 184, 0.12);
  --border-featured: rgba(37, 99, 235, 0.5);

  /* 文字 */
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-on-primary: #FFFFFF;

  /* 字体 */
  --font-display: 'Outfit', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;

  /* 间距 */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;

  /* 圆角 */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-card-hover: 0 8px 40px rgba(0, 0, 0, 0.4), 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-featured: 0 4px 32px rgba(37, 99, 235, 0.2), 0 8px 48px rgba(0, 0, 0, 0.3);
  --shadow-btn: 0 2px 12px rgba(37, 99, 235, 0.3);

  /* 动画 */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 150ms var(--ease-out-expo);
  --transition-normal: 300ms var(--ease-out-expo);
}

/* ── 浅色主题（与桌面应用 LIGHT 同源：暖纸底色护眼 + 冷调蓝色强调互补）── */
[data-theme="light"] {
  /* 强调色：与深色主题同品牌蓝（暖底上 AA 达标） */
  --color-primary: #2563EB;
  --color-primary-light: #3B82F6;
  --color-primary-dark: #1D4ED8;
  --color-primary-glow: rgba(37, 99, 235, 0.15);
  --color-success: #10B981;
  --color-success-glow: rgba(16, 185, 129, 0.12);
  --color-warning: #B57614;
  --color-error: #C0392B;

  /* 表面：暖白纸感（降蓝光/眩光） */
  --bg-base: #FBF7F0;
  --bg-surface: rgba(245, 239, 230, 0.85);
  --bg-card: rgba(255, 251, 244, 0.9);
  --bg-card-hover: #FFFFFF;
  --bg-input: rgba(239, 231, 218, 0.9);
  --border-subtle: rgba(120, 100, 70, 0.12);
  --border-card: rgba(120, 100, 70, 0.18);
  --border-featured: rgba(37, 99, 235, 0.45);

  /* 文字：暖炭非冷黑 */
  --text-primary: #2B2620;
  --text-secondary: #574F45;
  --text-muted: #857C70;

  /* 阴影：暖棕调 */
  --shadow-card: 0 4px 24px rgba(90, 70, 40, 0.08), 0 1px 2px rgba(90, 70, 40, 0.05);
  --shadow-card-hover: 0 8px 40px rgba(90, 70, 40, 0.12), 0 2px 4px rgba(90, 70, 40, 0.07);
  --shadow-featured: 0 4px 32px rgba(37, 99, 235, 0.14), 0 8px 48px rgba(90, 70, 40, 0.1);
  --shadow-btn: 0 2px 12px rgba(37, 99, 235, 0.3);
}

/* ── 基础重置 ── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* 内容不足一屏时把页脚压到视口底部（sticky footer） */
main {
  flex: 1 0 auto;
}

/* ── 背景装饰 ── */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--border-subtle) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
}

.bg-glow--top {
  top: -200px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12), transparent 70%);
}

.bg-glow--bottom {
  bottom: -200px;
  left: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.08), transparent 70%);
}

/* ── 公共导航（与其他 search 页对齐） ── */
.site-nav__inner {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
}

.site-nav {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-family: var(--font-display);
}

.brand__icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: block;
  flex-shrink: 0;
}

.brand__en {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary-light);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.nav-links a:hover { color: var(--text-primary); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  place-items: center;
}

/* ── 语言 / 主题切换按钮（内嵌导航栏） ── */
.lang-toggle {
  height: 40px;
  padding: 0 0.9rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.lang-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  color: var(--text-secondary);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.theme-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: scale(1.05);
}

@media (max-width: 820px) {
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg-surface);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-card);
    padding: var(--space-sm) var(--space-lg);
    display: none;
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 0.75rem 0; border-bottom: 1px solid var(--border-subtle); }
  .nav-links li:last-child a { border-bottom: none; }
  .nav-toggle { display: grid; }
}

.icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* ── 容器 ── */
.container {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
  padding-top: var(--space-2xl);
}

/* ── 头部 Hero ── */
.hero {
  text-align: center;
  margin-bottom: var(--space-2xl);
  animation: fadeInUp 0.6s var(--ease-out-expo) both;
}

.hero__badge {
  display: inline-block;
  padding: 0.3rem 1rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-lg);
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: var(--space-md);
}

.hero__title-accent {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-success));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── 阶段控制 ── */
.stage {
  animation: fadeInUp 0.4s var(--ease-out-expo) both;
}

.stage--hidden {
  display: none;
}

/* ── 定价卡片网格 ── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  align-items: stretch;
}

/* 平板：四卡过窄，降为 2×2 */
@media (max-width: 1000px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }
}

.plan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--space-xl) var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  animation: fadeInUp 0.5s var(--ease-out-expo) both;
}

.plan-card:nth-child(1) { animation-delay: 0.05s; }
.plan-card:nth-child(2) { animation-delay: 0.12s; }
.plan-card:nth-child(3) { animation-delay: 0.19s; }
.plan-card:nth-child(4) { animation-delay: 0.26s; }

.plan-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(148, 163, 184, 0.2);
}

/* 推荐卡片 */
.plan-card--featured {
  border-color: var(--border-featured);
  background: linear-gradient(
    165deg,
    rgba(37, 99, 235, 0.08) 0%,
    var(--bg-card) 50%
  );
  box-shadow: var(--shadow-featured);
  transform: scale(1.03);
}

.plan-card--featured:hover {
  transform: scale(1.03) translateY(-4px);
}

.plan-card__ribbon {
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.25rem 1.2rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--text-on-primary);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.plan-card__header {
  margin-bottom: var(--space-lg);
}

.plan-card__name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.plan-card__price {
  display: flex;
  align-items: baseline;
  gap: 0.15rem;
}

.plan-card__currency {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text-primary);
}

.plan-card__amount {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1;
}

.plan-card__period {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-left: 0.3rem;
}

.plan-card__price-alt {
  margin-top: var(--space-xs);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.plan-card__features {
  list-style: none;
  flex: 1;
  margin-bottom: var(--space-xl);
}

.plan-card__features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.45rem 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

.plan-card__features li:last-child {
  border-bottom: none;
}

.check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-success-glow);
  color: var(--color-success);
  font-size: 0.65rem;
  font-weight: 700;
  flex-shrink: 0;
}

.check--accent {
  background: var(--color-primary-glow);
  color: var(--color-primary-light);
  font-size: 0.6rem;
}

/* ── 按钮 ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--text-on-primary);
  box-shadow: var(--shadow-btn);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
  transform: translateY(-1px);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-card);
}

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-glow);
}

.btn--full {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

.btn__loading {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

/* 隐藏态必须压过上面的 display:inline-flex（否则 [hidden] 失效、转圈常驻） */
.btn__loading[hidden] {
  display: none;
}

/* ── 支付面板 ── */
.payment-panel {
  max-width: 480px;
  margin: 0 auto;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  animation: fadeInUp 0.4s var(--ease-out-expo) both;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0.3rem 0;
  margin-bottom: var(--space-lg);
  transition: color var(--transition-fast);
}

.back-link:hover {
  color: var(--color-primary);
}

.payment-panel__header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.payment-panel__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
}

.payment-panel__price {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-primary-light);
  margin-top: var(--space-xs);
}

/* ── 表单 ── */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.form-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-card);
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font-body);
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-error {
  display: block;
  font-size: 0.78rem;
  color: var(--color-error);
  margin-top: var(--space-xs);
  min-height: 1.2em;
}

/* ── 邮箱验证码（OTP）行 ── */
.otp-row {
  display: flex;
  gap: var(--space-sm);
  align-items: stretch;
}
.otp-input {
  flex: 1 1 auto;
  min-width: 0;
  letter-spacing: 0.18em;
  font-family: var(--font-mono, monospace);
}
.otp-input:disabled {
  opacity: 0.7;
  cursor: default;
}
.otp-send-btn {
  flex: 0 0 auto;
  white-space: nowrap;
  min-width: 112px;
}
.otp-send-btn:disabled {
  opacity: 0.65;
  cursor: default;
}

/* ── §496 主动勾选块 ── */
.consent-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-md);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
}

.consent-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--text-primary);
  cursor: pointer;
}

.consent-item a {
  color: var(--color-primary);
  text-decoration: underline;
}

.consent-checkbox {
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  margin-top: 0.15rem;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.consent-error {
  margin-top: 0;
}

/* ── 支付方式 ── */
.pay-methods {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-sm);
}

.pay-method {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-card);
  background: var(--bg-input);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pay-method input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.pay-method:hover {
  border-color: var(--text-muted);
}

.pay-method--active {
  border-color: var(--color-primary);
  background: var(--color-primary-glow);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.08);
}

.pay-method__icon {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.pay-method--active .pay-method__icon {
  color: var(--color-primary-light);
}

.pay-method[data-method="wechat"].pay-method--active .pay-method__icon {
  color: #07C160;
}

.pay-method[data-method="alipay"].pay-method--active .pay-method__icon {
  color: #1677FF;
}

.pay-method__label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* ── 支付二维码弹框（覆盖式，不挤压页面）── */
.pay-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

/* 隐藏态必须压过上面的 display:flex（同特异度靠后定义会覆盖，故显式提高特异度） */
.pay-modal.stage--hidden {
  display: none;
}

body.pay-modal-open {
  overflow: hidden;
}

.pay-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 23, 0.66);
  backdrop-filter: blur(6px);
  animation: fadeIn 0.25s ease both;
}

.pay-modal__dialog {
  position: relative;
  width: 100%;
  max-width: 360px;
  padding: var(--space-xl) var(--space-lg) var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card-hover);
  text-align: center;
  animation: modalPop 0.32s var(--ease-out-expo) both;
}

.pay-modal__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-card);
  background: var(--bg-input);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pay-modal__close:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
  background: var(--bg-card-hover);
  transform: rotate(90deg);
}

.pay-modal__head {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.pay-modal__method {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.pay-modal__timer {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius-full);
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
}

.pay-modal__code {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 240px;
  height: 240px;
  margin: 0 auto var(--space-lg);
  padding: 12px;
  border-radius: var(--radius-md);
  background: #FFFFFF;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18), 0 0 0 1px rgba(148, 163, 184, 0.12);
}

/* 主色光晕环，提升精致感 */
.pay-modal__code::after {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 16px;
  border: 1.5px solid var(--color-primary-glow);
  pointer-events: none;
}

.pay-modal__code img,
.pay-modal__code canvas,
.pay-modal__code table {
  max-width: 100%;
  max-height: 100%;
  border-radius: 4px;
}

/* 支付宝内嵌收银台：qr_pay_mode=4 渲染的二维码宽 = qrcode_width(200) 且左对齐，
   iframe 必须正好 200×200（不能更大，否则右侧留空隙导致偏移；不能更小，否则裁切）。 */
.pay-modal__code iframe {
  width: 200px;
  height: 200px;
  border: 0;
  background: #FFFFFF;
  flex-shrink: 0;
}

.pay-modal__hint {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.pay-modal__status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  width: 100%;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: pulse 1.5s ease-in-out infinite;
}

/* ── 完成面板 ── */
.complete-panel {
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
  padding: var(--space-2xl) var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(16, 185, 129, 0.2);
  background: linear-gradient(165deg, var(--color-success-glow), var(--bg-card));
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  animation: fadeInUp 0.5s var(--ease-out-expo) both;
}

.complete-panel__icon {
  margin-bottom: var(--space-lg);
  animation: scaleIn 0.5s var(--ease-out-expo) 0.2s both;
}

.complete-panel__title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.complete-panel__subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

/* 许可证框 */
.license-box {
  text-align: left;
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-card);
  background: var(--bg-input);
}

.license-box__label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-sm);
}

.license-box__content {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.license-box__key {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-primary);
  word-break: break-all;
  line-height: 1.5;
}

.license-box__copy {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.license-box__copy:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.license-box__copy.copied {
  border-color: var(--color-success);
  color: var(--color-success);
}

.complete-panel__actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.complete-panel__note {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.complete-panel__note--warn {
  color: var(--color-warning);
  max-width: 420px;
  margin: var(--space-lg) auto 0;
  line-height: 1.6;
}

.complete-panel__order {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: calc(var(--space-md) * -1);
  margin-bottom: var(--space-lg);
}

.complete-panel__order span {
  font-family: var(--font-mono);
  color: var(--text-primary);
  word-break: break-all;
}

/* ── 错误面板 ── */
.error-panel {
  max-width: 440px;
  margin: 0 auto;
  text-align: center;
  padding: var(--space-2xl) var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(245, 158, 11, 0.2);
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  animation: fadeInUp 0.4s var(--ease-out-expo) both;
}

.error-panel__icon {
  margin-bottom: var(--space-lg);
}

.error-panel__title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.error-panel__message {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

.error-panel__actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
}

/* ── 页脚容器定位（具体布局见下方「统一两段式」）── */
.footer {
  position: relative;
  z-index: 1;
  text-align: left;
}

/* ── 旋转动画 ── */
.spinner {
  animation: spin 0.8s linear infinite;
}

/* ── 关键帧 ── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalPop {
  from { opacity: 0; transform: translateY(12px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ── 响应式微调 ── */
@media (max-width: 600px) {
  .container {
    padding: var(--space-lg) var(--space-md);
    padding-top: var(--space-xl);
  }

  .payment-panel {
    padding: var(--space-lg);
  }

  .complete-panel__actions,
  .error-panel__actions {
    flex-direction: column;
  }

  .pay-modal__code {
    width: 180px;
    height: 180px;
  }

  .hero__title {
    font-size: 2rem;
  }

  .plan-card__amount {
    font-size: 2.2rem;
  }
}

/* ── 无障碍：减弱动画 ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── 页脚（统一两段式）── */
.footer { border-top: 1px solid var(--border-subtle); margin-top: 64px; }
.footer__inner { max-width: 1100px; margin: 0 auto; padding: 34px 24px 26px; display: flex; flex-wrap: wrap; gap: 32px; justify-content: space-between; align-items: flex-start; }
.footer__brand { max-width: 300px; }
.footer__brand .fbrand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.footer__brand .fbrand__icon { width: 34px; height: 34px; border-radius: 8px; object-fit: cover; display: block; flex-shrink: 0; }
.footer__brand .fbrand__name { font-family: "Songti SC", "STSong", "SimSun", "Noto Serif SC", serif; font-size: 20px; font-weight: 400; letter-spacing: 2px; color: var(--text-primary); }
.footer__tagline { margin-top: 12px; font-size: .82rem; color: var(--text-muted); line-height: 1.6; }
.footer__cols { display: flex; flex-wrap: wrap; gap: 48px; }
.footer__col h4 { font-size: .82rem; font-weight: 600; letter-spacing: .06em; color: var(--text-secondary); margin-bottom: 14px; }
.footer__col ul { list-style: none; display: flex; flex-direction: column; gap: 9px; margin: 0; padding: 0; }
.footer__col a { color: var(--text-muted); text-decoration: none; font-size: .85rem; transition: color .2s; }
.footer__col a:hover { color: var(--color-primary-light); }
.footer__bottom { max-width: 1100px; margin: 0 auto; padding: 16px 24px 40px; border-top: 1px solid var(--border-subtle); display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; align-items: center; font-size: .78rem; color: var(--text-muted); }
.footer__bottom a { color: var(--text-muted); text-decoration: none; }
.footer__bottom a:hover { color: var(--color-primary-light); }
.footer__icp { display: inline-flex; align-items: center; gap: 6px; flex-wrap: wrap; letter-spacing: .02em; }