/**
 * 登录弹窗 — 对齐 demo/src/app/components/LoginModal.tsx
 */
.demo-login-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px 24px;
  box-sizing: border-box;
}
.demo-login-modal.is-open {
  display: flex;
}
.demo-login-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.3);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.demo-login-modal__dialog {
  position: relative;
  width: 100%;
  max-width: 420px;
  max-height: min(92vh, 720px);
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 24px;
  box-shadow: 0 30px 80px -20px rgba(37, 99, 235, 0.15);
  overflow: hidden;
}
.demo-login-modal__close {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 10;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 999px;
  background: rgba(241, 245, 249, 0.9);
  color: #64748b;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.demo-login-modal__close:hover {
  background: #e2e8f0;
  color: #475569;
}
.demo-login-modal__head {
  position: relative;
  padding: 40px 32px 20px;
  text-align: center;
}
.demo-login-modal__glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 128px;
  background: rgba(59, 130, 246, 0.1);
  filter: blur(40px);
  border-radius: 999px;
  pointer-events: none;
}
.demo-login-modal__logo {
  position: relative;
  z-index: 1;
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
  color: #fff;
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -0.02em;
}
.demo-login-modal__title {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  color: #1e293b;
  letter-spacing: -0.02em;
}
.demo-login-modal__desc {
  position: relative;
  z-index: 1;
  margin: 8px 0 0;
  font-size: 14px;
  color: #64748b;
  line-height: 1.5;
}
.demo-login-modal__body {
  position: relative;
  z-index: 1;
  padding: 0 32px 28px;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}
.demo-login-modal__mode {
  display: none;
  flex-direction: column;
  gap: 0;
  width: 100%;
}
.demo-login-modal__mode.is-active {
  display: flex;
}
/* 表单项在 <form> 内，gap 必须加在 form 上，否则所有输入会挤在一起 */
.demo-login-modal__mode > form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
}
.demo-login-modal__field {
  position: relative;
}
.demo-login-modal__field-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: #94a3b8;
  font-size: 16px;
  pointer-events: none;
  z-index: 1;
}
.demo-login-modal__field:focus-within .demo-login-modal__field-icon {
  color: #2563eb;
}
.demo-login-modal__input {
  width: 100%;
  height: 46px;
  padding: 0 16px 0 44px;
  box-sizing: border-box;
  border: 1px solid rgba(226, 232, 240, 0.85);
  border-radius: 16px;
  background: rgba(248, 250, 252, 0.6);
  font-size: 14px;
  color: #1e293b;
  outline: none;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}
.demo-login-modal__input::placeholder {
  color: #94a3b8;
}
.demo-login-modal__input:focus {
  border-color: #3b82f6;
  background: #fff;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}
.demo-login-modal__row {
  display: flex;
  align-items: stretch;
  gap: 12px;
}
.demo-login-modal__row .demo-login-modal__field {
  flex: 1;
  min-width: 0;
}
.demo-login-modal__captcha-img {
  width: 110px;
  height: 46px;
  flex-shrink: 0;
  border-radius: 16px;
  border: 1px solid rgba(226, 232, 240, 0.85);
  background: rgba(248, 250, 252, 0.6);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.demo-login-modal__captcha-img img {
  max-width: 100%;
  max-height: 100%;
  display: block;
}
.demo-login-modal__sms-btn {
  width: 110px;
  height: 46px;
  flex-shrink: 0;
  border: none;
  border-radius: 16px;
  background: #eff6ff;
  color: #2563eb;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s;
}
.demo-login-modal__sms-btn:hover {
  background: #dbeafe;
}
.demo-login-modal__row-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0;
}
.demo-login-modal__check {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 13px;
  color: #64748b;
  user-select: none;
}
.demo-login-modal__check-box {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  border: 1px solid #cbd5e1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: border-color 0.15s, background 0.15s;
}
.demo-login-modal__check input[type="checkbox"] {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  margin: 0;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  border: 0;
  background: transparent;
}
.demo-login-modal__check .demo-login-modal__check-box {
  pointer-events: none;
}
.demo-login-modal__check input:checked + .demo-login-modal__check-box {
  background: #2563eb;
  border-color: #2563eb;
  color: #fff;
}
.demo-login-modal__check input:checked + .demo-login-modal__check-box::after {
  content: "";
  width: 4px;
  height: 8px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-top: -2px;
}
.demo-login-modal__check input:focus-visible + .demo-login-modal__check-box {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}
.demo-login-modal__link-btn {
  background: none;
  border: none;
  padding: 0;
  font-size: 13px;
  font-weight: 500;
  color: #64748b;
  cursor: pointer;
  transition: color 0.15s;
}
.demo-login-modal__link-btn:hover {
  color: #2563eb;
}
.demo-login-modal__submit {
  width: 100%;
  height: 48px;
  margin-top: 0;
  border: none;
  border-radius: 999px;
  background: #2563eb;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 8px 20px -6px rgba(37, 99, 235, 0.4);
  transition: background 0.15s, box-shadow 0.15s;
}
.demo-login-modal__submit:hover {
  background: #1d4ed8;
  box-shadow: 0 12px 24px -6px rgba(37, 99, 235, 0.5);
}
.demo-login-modal__oauth {
  margin-top: 8px; /* 与主按钮区略拉开，接近 React 的 mt-6 */
  display: flex;
  flex-direction: column;
  align-items: center;
}
.demo-login-modal__oauth-line {
  display: flex;
  align-items: center;
  width: 100%;
  margin-bottom: 18px;
}
.demo-login-modal__oauth-line::before,
.demo-login-modal__oauth-line::after {
  content: "";
  flex: 1;
  height: 1px;
  background: #f1f5f9;
}
.demo-login-modal__oauth-line span {
  padding: 0 16px;
  font-size: 12px;
  color: #94a3b8;
  letter-spacing: 0.08em;
}
.demo-login-modal__oauth-btns {
  display: flex;
  gap: 18px;
  justify-content: center;
}
.demo-login-modal__oauth-btns a {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid #f1f5f9;
  background: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #64748b;
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}
.demo-login-modal__oauth-btns a:hover {
  border-color: #bfdbfe;
  color: #2563eb;
  background: #eff6ff;
}
.demo-login-modal__oauth-btns a[data-oauth="weixin"]:hover {
  border-color: #bbf7d0;
  color: #16a34a;
  background: #f0fdf4;
}
.demo-login-modal__protocol {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: #64748b;
  line-height: 1.45;
  cursor: pointer;
  user-select: none;
  margin-top: 0;
  padding-left: 0;
}
/* 协议行：隐藏原生 checkbox（只保留自定义方框），避免「双框」 */
.demo-login-modal__protocol input[type="checkbox"] {
  position: absolute;
  left: 0;
  top: 2px;
  width: 16px;
  height: 16px;
  margin: 0;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  border: 0;
  background: transparent;
}
.demo-login-modal__protocol .demo-login-modal__check-box {
  margin-top: 2px;
  flex-shrink: 0;
  pointer-events: none;
  position: relative;
  z-index: 1;
}
.demo-login-modal__protocol input[type="checkbox"]:checked + .demo-login-modal__check-box {
  background: #2563eb;
  border-color: #2563eb;
  color: #fff;
}
.demo-login-modal__protocol input[type="checkbox"]:checked + .demo-login-modal__check-box::after {
  content: "";
  width: 4px;
  height: 8px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-top: -2px;
}
.demo-login-modal__protocol input[type="checkbox"]:focus-visible + .demo-login-modal__check-box {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}
.demo-login-modal__protocol a {
  color: #2563eb;
  text-decoration: none;
  font-weight: 500;
}
.demo-login-modal__protocol a:hover {
  text-decoration: underline;
}
.demo-login-modal__foot {
  padding: 18px 20px;
  background: rgba(248, 250, 252, 0.6);
  border-top: 1px solid #f1f5f9;
  display: flex;
  justify-content: center;
}
.demo-login-modal__foot-btn {
  background: none;
  border: none;
  font-size: 14px;
  font-weight: 500;
  color: #64748b;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.15s;
}
.demo-login-modal__foot-btn:hover {
  color: #2563eb;
}
.demo-site-header__link--btn {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
  text-decoration: none;
}
.demo-site-header__link--btn:hover {
  color: #2563eb;
}
@media (max-width: 480px) {
  .demo-login-modal {
    padding: 12px;
  }
  .demo-login-modal__head {
    padding: 36px 20px 16px;
  }
  .demo-login-modal__body {
    padding: 0 20px 24px;
  }
}