/* ============================================
   支付页面现代化样式 - 蓝色主题
   与全站 muban/assets/css 风格统一
   ============================================ */

/* ---------- CSS 变量 ---------- */
:root {
  --pay-blue: #1a56db;
  --pay-blue-dark: #1e40af;
  --pay-blue-light: #eff6ff;
  --pay-bg: #f8fafc;
  --pay-card: #fff;
  --pay-border: #e5e7eb;
  --pay-text: #1a202c;
  --pay-text-secondary: #6b7280;
  --pay-text-muted: #9ca3af;
  --pay-radius: 12px;
  --pay-radius-sm: 8px;
  --pay-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
  --pay-shadow-lg: 0 8px 32px rgba(26, 86, 219, 0.1);
  --pay-transition: all 0.3s ease;
}

/* ---------- 重置 ---------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Poppins', 'Microsoft YaHei', '微软雅黑', sans-serif;
  background: var(--pay-bg);
  color: var(--pay-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  text-decoration: none;
  color: inherit;
}

ul, ol {
  list-style: none;
}

img {
  max-width: 100%;
}

/* ---------- 顶部导航条 ---------- */
.pay-nav {
  background: #fff;
  border-bottom: 1px solid var(--pay-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.pay-nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.pay-nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--pay-text);
}

.pay-nav-brand i {
  color: var(--pay-blue);
  font-size: 18px;
}

.pay-nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.pay-nav-links a {
  display: inline-block;
  padding: 8px 16px;
  font-size: 14px;
  color: var(--pay-text-secondary);
  border-radius: var(--pay-radius-sm);
  transition: var(--pay-transition);
}

.pay-nav-links a:hover {
  color: var(--pay-blue);
  background: var(--pay-blue-light);
}

.pay-nav-links a.nav-btn-primary {
  background: var(--pay-blue);
  color: #fff;
  font-weight: 500;
  padding: 8px 20px;
  border-radius: 20px;
}

.pay-nav-links a.nav-btn-primary:hover {
  background: var(--pay-blue-dark);
}

/* ---------- 面包屑 Banner ---------- */
.pay-breadcrumb {
  background: linear-gradient(135deg, #1e3a5f 0%, #1a56db 50%, #4f46e5 100%);
  padding: 60px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.pay-breadcrumb::before,
.pay-breadcrumb::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}

.pay-breadcrumb::before {
  width: 320px;
  height: 320px;
  top: -120px;
  right: -80px;
}

.pay-breadcrumb::after {
  width: 200px;
  height: 200px;
  bottom: -60px;
  left: -40px;
}

.pay-breadcrumb-inner {
  position: relative;
  z-index: 1;
}

.pay-breadcrumb h2 {
  font-family: 'Ubuntu', sans-serif;
  font-size: 34px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.pay-breadcrumb .breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}

.pay-breadcrumb .breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  transition: var(--pay-transition);
}

.pay-breadcrumb .breadcrumb a:hover {
  color: #fff;
}

.pay-breadcrumb .breadcrumb span {
  color: rgba(255, 255, 255, 0.5);
}

.pay-breadcrumb .breadcrumb .active {
  color: #fff;
}

/* ---------- 主体区域 ---------- */
.pay-main {
  flex: 1;
  padding: 50px 0 70px;
}

.pay-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- 登录提示卡片 ---------- */
.pay-login-card {
  background: var(--pay-card);
  border-radius: var(--pay-radius);
  box-shadow: var(--pay-shadow);
  padding: 24px 30px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--pay-border);
  transition: var(--pay-transition);
}

.pay-login-card:hover {
  box-shadow: var(--pay-shadow-lg);
}

.pay-login-info {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--pay-text-secondary);
}

.pay-login-info i {
  font-size: 22px;
  color: var(--pay-blue);
}

.pay-login-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: var(--pay-blue);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  border: 2px solid var(--pay-blue);
  border-radius: 25px;
  transition: var(--pay-transition);
  cursor: pointer;
}

.pay-login-btn:hover {
  background: var(--pay-blue-dark);
  border-color: var(--pay-blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26, 86, 219, 0.35);
}

.pay-login-home {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--pay-text-muted);
  transition: var(--pay-transition);
}

.pay-login-home:hover {
  color: var(--pay-blue);
}

/* ---------- 支付表单卡片 ---------- */
.pay-form-card {
  background: var(--pay-card);
  border-radius: var(--pay-radius);
  box-shadow: var(--pay-shadow);
  border: 1px solid var(--pay-border);
  overflow: hidden;
}

.pay-form-card-header {
  padding: 24px 30px;
  border-bottom: 1px solid #edf2f7;
  font-family: 'Ubuntu', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--pay-text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.pay-form-card-header i {
  color: var(--pay-blue);
}

.pay-form-body {
  padding: 30px;
}

/* ---------- 表单项 ---------- */
.pay-form-group {
  display: flex;
  align-items: flex-start;
  margin-bottom: 24px;
}

.pay-form-label {
  flex: 0 0 140px;
  padding-top: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--pay-text);
  text-align: right;
  padding-right: 20px;
}

.pay-form-input-wrap {
  flex: 1;
  max-width: 460px;
}

.pay-form-input {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  font-size: 14px;
  font-family: inherit;
  color: var(--pay-text);
  background: #fff;
  border: 1.5px solid #d1d5db;
  border-radius: var(--pay-radius-sm);
  outline: none;
  transition: var(--pay-transition);
}

.pay-form-input:focus {
  border-color: var(--pay-blue);
  box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}

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

.pay-form-tip {
  margin-top: 6px;
  font-size: 12px;
  color: var(--pay-text-muted);
}

/* ---------- 金额选择 ---------- */
.pay-amount-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pay-amount-item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 90px;
  height: 44px;
  padding: 0 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--pay-text-secondary);
  background: #fff;
  border: 1.5px solid #d1d5db;
  border-radius: 25px;
  cursor: pointer;
  user-select: none;
  transition: var(--pay-transition);
}

.pay-amount-item:hover {
  border-color: var(--pay-blue);
  color: var(--pay-blue);
}

.pay-amount-item.active {
  background: var(--pay-blue);
  border-color: var(--pay-blue);
  color: #fff;
  box-shadow: 0 4px 12px rgba(26, 86, 219, 0.3);
}

.pay-amount-item.active::after {
  content: '\f00c';
  font-family: FontAwesome;
  font-size: 11px;
  margin-left: 6px;
}

.pay-amount-custom {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
}

.pay-amount-custom input {
  width: 120px;
  height: 42px;
  padding: 0 14px;
  font-size: 14px;
  border: 1.5px solid #d1d5db;
  border-radius: var(--pay-radius-sm);
  outline: none;
  transition: var(--pay-transition);
}

.pay-amount-custom input:focus {
  border-color: var(--pay-blue);
  box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}

.pay-amount-custom span {
  font-size: 14px;
  color: var(--pay-text-secondary);
}

/* ---------- 支付方式选择 ---------- */
.pay-method-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pay-method-item {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 48px;
  padding: 0 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--pay-text-secondary);
  background: #fff;
  border: 1.5px solid #d1d5db;
  border-radius: var(--pay-radius-sm);
  cursor: pointer;
  transition: var(--pay-transition);
}

.pay-method-item:hover {
  border-color: var(--pay-blue);
  color: var(--pay-blue);
}

.pay-method-item.active {
  background: var(--pay-blue-light);
  border-color: var(--pay-blue);
  color: var(--pay-blue);
  box-shadow: 0 0 0 2px rgba(26, 86, 219, 0.1);
}

.pay-method-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--pay-blue);
}

/* ---------- 合计金额 ---------- */
.pay-total {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 20px;
  background: var(--pay-blue-light);
  border-radius: var(--pay-radius-sm);
  margin-top: 6px;
  max-width: 460px;
  margin-left: auto;
  margin-right: 0;
  width: fit-content;
}

.pay-total-label {
  font-size: 14px;
  color: var(--pay-text-secondary);
}

.pay-total-amount {
  font-family: 'Ubuntu', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--pay-blue);
}

.pay-total-unit {
  font-size: 16px;
  color: var(--pay-text-secondary);
}

/* ---------- 提交按钮 ---------- */
.pay-submit-wrap {
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid #edf2f7;
  display: flex;
  justify-content: center;
}

.pay-submit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 220px;
  height: 52px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  background: var(--pay-blue);
  border: none;
  border-radius: 30px;
  cursor: pointer;
  transition: var(--pay-transition);
  box-shadow: 0 6px 20px rgba(26, 86, 219, 0.35);
  font-family: inherit;
}

.pay-submit-btn:hover {
  background: var(--pay-blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(26, 86, 219, 0.45);
}

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

/* ---------- 页脚 ---------- */
.pay-footer {
  background: #1e293b;
  color: rgba(255, 255, 255, 0.7);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  line-height: 2;
}

.pay-footer a {
  color: rgba(255, 255, 255, 0.85);
  transition: var(--pay-transition);
}

.pay-footer a:hover {
  color: var(--pay-blue);
}

.pay-footer-icp {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 12px;
  margin-top: 4px;
  transition: var(--pay-transition);
}

.pay-footer-icp:hover {
  background: rgba(26, 86, 219, 0.3);
  color: #fff;
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .pay-breadcrumb {
    padding: 40px 0;
  }

  .pay-breadcrumb h2 {
    font-size: 24px;
  }

  .pay-main {
    padding: 30px 0 50px;
  }

  .pay-form-group {
    flex-direction: column;
  }

  .pay-form-label {
    flex: none;
    text-align: left;
    padding-right: 0;
    padding-top: 0;
    margin-bottom: 6px;
  }

  .pay-form-input-wrap {
    max-width: 100%;
  }

  .pay-login-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .pay-total {
    max-width: 100%;
    width: 100%;
  }

  .pay-amount-group {
    gap: 8px;
  }

  .pay-amount-item {
    min-width: 70px;
    height: 40px;
    padding: 0 16px;
    font-size: 14px;
  }

  .pay-submit-btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .pay-nav-inner {
    height: 48px;
  }

  .pay-nav-links a {
    padding: 6px 10px;
    font-size: 13px;
  }

  .pay-form-body {
    padding: 20px;
  }

  .pay-amount-group {
    gap: 6px;
  }

  .pay-amount-item {
    min-width: 60px;
    height: 38px;
    padding: 0 14px;
    font-size: 13px;
  }

  .pay-method-item {
    height: 42px;
    padding: 0 14px;
    font-size: 13px;
  }
}