.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.auth-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-bg) 100%);
}

.auth-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 480px;
  padding: 2rem;
}

.auth-box {
  background-color: var(--color-bg);
  padding: 3rem;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.auth-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.auth-logo {
  display: inline-block;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.auth-logo a {
  text-decoration: none;
  display: inline-block;
  transition: var(--transition);
}

.auth-logo a:hover {
  transform: scale(1.05);
}

/* Logo图标样式 */
.auth-logo i {
  font-size: 3rem;
  color: var(--color-primary);
}

/* Logo图片样式 */
.auth-logo .logo-image {
  max-width: 200px;
  max-height: 80px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.auth-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.auth-subtitle {
  color: var(--color-text-light);
  font-size: 1rem;
}

.auth-form .form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 0.875rem;
}

/* 输入框样式 - 直角，48px高度 */
.auth-form .form-control {
  width: 100%;
  height: 48px;
  padding: 12px 16px;
  border-radius: 0; /* 直角，无圆角 */
  font-size: 16px;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg);
  color: var(--color-text);
  transition: var(--transition);
}

.auth-form .form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.2rem rgba(var(--color-primary-rgb), 0.25);
  outline: none;
}

.auth-form .form-control::placeholder {
  color: var(--color-text-light);
}

/* 验证码容器 - 输入框和图片并排 */
.captcha-wrapper {
  display: flex;
  gap: 1rem;
  align-items: center;
}

/* 验证码输入框容器 */
.captcha-input-wrapper {
  flex: 1;
}

/* 验证码图片样式 - 与输入框样式保持一致 */
.captcha-img {
  height: 48px; /* 与输入框高度一致 */
  width: 150px;
  border: 1px solid var(--color-border);
  border-radius: 0; /* 直角，无圆角 */
  cursor: pointer;
  transition: var(--transition);
  object-fit: cover;
  background: var(--color-bg-light);
  display: block;
}

.captcha-img:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.2rem rgba(var(--color-primary-rgb), 0.25);
}

/* 旧版验证码组样式（保留兼容性） */
.captcha-group {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.captcha-input {
  flex: 1;
}

.captcha-image {
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--color-bg-light);
}

#captchaCanvas {
  display: block;
}

.captcha-refresh {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.6);
  border: none;
  color: white;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
  cursor: none;
}

.captcha-image:hover .captcha-refresh {
  opacity: 1;
}

.captcha-refresh:hover {
  background: rgba(0, 0, 0, 0.8);
  transform: translate(-50%, -50%) rotate(180deg);
}

/* 添加邮箱验证码组样式 */
.verification-group {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.verification-input {
  flex: 1;
}

.send-code-btn {
  white-space: nowrap;
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  border-radius: 8px;
  transition: var(--transition);
}

.send-code-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: none;
}

.checkbox-label input {
  cursor: none;
}

/* 添加模态框内链接样式 */
.checkbox-label a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.checkbox-label a:hover {
  text-decoration: underline;
}

.forgot-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.forgot-link:hover {
  text-decoration: underline;
}

.auth-footer {
  text-align: center;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.auth-footer p {
  margin-bottom: 0.5rem;
}

.auth-footer a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.auth-footer a:hover {
  text-decoration: underline;
}

.auth-footer .back-home-link {
  display: inline-flex;
  align-items: center;
  color: var(--color-text-light);
  font-size: 0.875rem;
  font-weight: 400;
}

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

/* 添加模态框样式 */
.modal-content {
  border-radius: 16px;
  border: 1px solid var(--color-border);
}

.modal-header {
  border-bottom: 1px solid var(--color-border);
  padding: 1.5rem;
}

.modal-title {
  font-weight: 700;
  font-size: 1.5rem;
}

.modal-body {
  padding: 2rem;
}

.modal-body h6 {
  font-weight: 700;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
}

.modal-body h6:first-child {
  margin-top: 0;
}

.modal-body p {
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.modal-body ul {
  color: var(--color-text-light);
  line-height: 1.6;
  padding-left: 1.5rem;
}

.modal-body ul li {
  margin-bottom: 0.5rem;
}

.modal-footer {
  border-top: 1px solid var(--color-border);
  padding: 1rem 1.5rem;
}

@media (max-width: 576px) {
  .auth-box {
    padding: 2rem;
  }

  .auth-title {
    font-size: 1.75rem;
  }

  /* 验证码在小屏幕上垂直排列 */
  .captcha-wrapper {
    flex-direction: column;
    align-items: stretch;
  }

  .captcha-img {
    width: 100%;
    height: 48px; /* 保持与输入框一致的高度 */
  }

  .auth-form .form-control {
    height: 44px; /* 小屏幕稍微降低高度 */
  }

  .captcha-group {
    flex-direction: column;
  }

  .captcha-image {
    width: 100%;
  }

  #captchaCanvas {
    width: 100%;
  }

  .verification-group {
    flex-direction: column;
  }

  .send-code-btn {
    width: 100%;
  }
}