/**
 * 登录 / 注册 / 续费首页兜底样式（不经过 Tailwind）
 * 当主样式表因浏览器内核过旧、兼容模式或解析失败未生效时，仍保证可读与可点。
 * 选择器尽量与 src/app/page.tsx 结构一致；勿依赖 @layer、嵌套、oklch 等新语法。
 */

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: #0f172a;
  background: #f1f5f9;
}

/* 首页认证卡片区域 */
main.dd-auth-page {
  box-sizing: border-box;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}

main.dd-auth-page > .dd-auth-card {
  box-sizing: border-box;
  width: 100%;
  max-width: 28rem;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  background: #ffffff;
  padding: 20px 20px 24px;
  box-shadow: 0 10px 40px rgba(15, 23, 42, 0.1);
}

main.dd-auth-page .dd-auth-card h1 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  color: #0f172a;
  text-align: center;
}

main.dd-auth-page .dd-auth-card .dd-auth-subtitle {
  margin: 4px 0 0;
  font-size: 0.875rem;
  color: #64748b;
  text-align: center;
}

/* Tab 栏 */
main.dd-auth-page [role="tablist"] {
  margin-top: 20px;
  border-bottom: 1px solid #e2e8f0;
}

main.dd-auth-page .dd-auth-tab-grid {
  display: table;
  width: 100%;
  table-layout: fixed;
  border-collapse: separate;
  border-spacing: 0;
}

main.dd-auth-page .dd-auth-tab-grid > button {
  display: table-cell;
  vertical-align: middle;
  box-sizing: border-box;
  min-height: 44px;
  padding: 8px 4px;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: inherit;
  color: #64748b;
  background: #ffffff;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
}

main.dd-auth-page .dd-auth-tab-grid > button[aria-selected="true"] {
  color: #4f46e5;
  border-bottom-color: #4f46e5;
  font-weight: 600;
}

main.dd-auth-page .dd-auth-tab-grid > button:hover {
  color: #0f172a;
}

/* 表单区 */
main.dd-auth-page [role="group"] {
  margin-top: 16px;
}

main.dd-auth-page [role="group"] > div {
  margin-bottom: 12px;
}

main.dd-auth-page [role="group"] label {
  display: block;
  margin-bottom: 4px;
  font-size: 0.875rem;
  font-weight: 500;
  color: #334155;
}

main.dd-auth-page [role="group"] input[type="text"],
main.dd-auth-page [role="group"] input[type="password"] {
  box-sizing: border-box;
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  font-size: 1rem;
  font-family: inherit;
  color: #0f172a;
  border: 1px solid #cbd5e1;
  border-radius: 12px;
  background: #ffffff;
}

main.dd-auth-page .dd-auth-password-wrap {
  position: relative;
}

main.dd-auth-page .dd-auth-password-wrap input {
  padding-right: 4.5rem;
}

main.dd-auth-page .dd-auth-password-wrap .dd-auth-toggle-pwd {
  position: absolute;
  right: 4px;
  top: 50%;
  margin-top: -22px;
  height: 44px;
  padding: 0 12px;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: inherit;
  color: #4f46e5;
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

main.dd-auth-page .dd-auth-password-wrap .dd-auth-toggle-pwd:hover {
  background: #eef2ff;
}

main.dd-auth-page .dd-auth-renew-hint {
  margin-top: 8px;
  font-size: 0.75rem;
  color: #b45309;
}

/* 主按钮 */
main.dd-auth-page .dd-auth-submit {
  box-sizing: border-box;
  width: 100%;
  min-height: 44px;
  margin-top: 4px;
  padding: 12px 16px;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  color: #ffffff;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  background: #4f46e5;
  background: linear-gradient(135deg, #2563eb, #4f46e5);
}

main.dd-auth-page .dd-auth-submit:hover {
  opacity: 0.95;
}

main.dd-auth-page .dd-auth-submit:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* 错误提示 */
main.dd-auth-page .dd-auth-alert {
  margin-top: 12px;
  padding: 8px 12px;
  font-size: 0.875rem;
  color: #9f1239;
  background: #fff1f2;
  border: 1px solid #fecdd3;
  border-radius: 8px;
}