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

body.login-body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  background: var(--login-gradient);
  padding: 1rem;
  color: var(--text);
}

.login-theme-wrap {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 10;
}

.login-theme-wrap .theme-toggle {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  font-size: 1.1rem;
  box-shadow: var(--shadow);
}

.form-box {
  max-width: 360px;
  width: 100%;
  background: var(--login-box-bg);
  overflow: hidden;
  border-radius: 16px;
  color: var(--text);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.form {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 32px 24px 24px;
  gap: 16px;
  text-align: center;
}

.title {
  font-weight: bold;
  font-size: 1.6rem;
}

.subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.form-container {
  overflow: hidden;
  border-radius: 8px;
  background-color: var(--login-input-bg);
  margin: 0.5rem 0 0;
  width: 100%;
  border: 1px solid var(--border);
}

.input {
  background: none;
  border: 0;
  outline: 0;
  height: 44px;
  width: 100%;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  padding: 8px 15px;
  color: var(--text);
}

.input:last-child {
  border-bottom: 0;
}

.input:focus {
  background: var(--login-input-focus);
}

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

.login-error {
  color: var(--danger);
  font-size: 0.85rem;
  min-height: 1.2em;
  text-align: left;
  padding: 0 4px;
}

.form button {
  background-color: var(--primary);
  color: #fff;
  border: 0;
  border-radius: 24px;
  padding: 12px 16px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.form button:hover {
  background-color: var(--primary-hover);
}

.form-section {
  padding: 16px 20px;
  font-size: 0.85rem;
  background-color: var(--login-section-bg);
  box-shadow: rgb(0 0 0 / 8%) 0 -1px;
  line-height: 1.6;
  color: var(--text-muted);
}

.form-section strong {
  color: var(--primary);
}

.form-section .hint {
  margin-top: 0.35rem;
  font-size: 0.8rem;
  color: var(--text-faint);
}

@media (max-width: 400px) {
  .form {
    padding: 24px 18px 18px;
  }
  .title {
    font-size: 1.35rem;
  }
}