/* ========== Login Modal (CSDN style) ========== */
.login-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.login-modal.is-open {
  opacity: 1;
  visibility: visible;
}

.login-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}

.login-modal-dialog {
  position: relative;
  width: 100%;
  max-width: 440px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  background: var(--bg-white);
  border-radius: 12px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.18);
  padding: 32px 36px 28px;
}

.login-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  color: var(--text-muted);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  border-radius: 4px;
  transition: color var(--transition), background var(--transition);
  z-index: 2;
}

.login-modal-close:hover {
  color: var(--text-primary);
  background: var(--bg-page);
}

.login-modal-mascot {
  position: absolute;
  top: -8px;
  right: 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: none;
}

.login-modal-mascot-bubble {
  padding: 4px 10px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: var(--font-xs);
  color: var(--text-secondary);
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  margin-bottom: 4px;
}

.login-modal-mascot-icon {
  font-size: 36px;
  line-height: 1;
}

.login-modal-header {
  text-align: center;
  margin-bottom: 24px;
  padding-top: 8px;
}

.login-modal-title {
  font-size: var(--font-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.login-modal-subtitle {
  font-size: var(--font-md);
  color: var(--text-secondary);
  line-height: 1.6;
}

.login-modal-subtitle .highlight {
  color: var(--primary);
}

.login-modal-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.login-modal-tab {
  flex: 1;
  padding: 12px 8px;
  background: none;
  border: none;
  font-size: var(--font-base);
  color: var(--text-secondary);
  cursor: pointer;
  position: relative;
  font-family: inherit;
  transition: color var(--transition);
}

.login-modal-tab:hover {
  color: var(--primary);
}

.login-modal-tab.active {
  color: var(--text-primary);
  font-weight: 600;
}

.login-modal-tab.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
}

.login-modal-panels {
  display: grid;
  min-height: 148px;
}

.login-modal-panel {
  grid-area: 1 / 1;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.login-modal-panel.active {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.login-modal-field {
  display: flex;
  align-items: center;
  height: 48px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color var(--transition);
}

.login-modal-field:focus-within {
  border-color: var(--primary);
}

.login-modal-field-prefix {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 12px;
  height: 100%;
  border: none;
  background: none;
  font-size: var(--font-base);
  color: var(--text-primary);
  font-family: inherit;
  cursor: pointer;
  flex-shrink: 0;
  border-right: 1px solid var(--border);
}

.login-modal-field-prefix svg {
  color: var(--text-muted);
}

.login-modal-field input {
  flex: 1;
  min-width: 0;
  height: 100%;
  padding: 0 12px;
  border: none;
  outline: none;
  font-size: var(--font-base);
  font-family: inherit;
  color: var(--text-primary);
  background: transparent;
}

.login-modal-field input::placeholder {
  color: var(--text-muted);
}

.login-modal-field-clear {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  margin-right: 4px;
  display: none;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 50%;
  font-size: 16px;
}

.login-modal-field-clear.is-visible {
  display: flex;
}

.login-modal-field-clear:hover {
  background: var(--bg-page);
  color: var(--text-secondary);
}

.login-modal-field-divider {
  width: 1px;
  height: 20px;
  background: var(--border);
  flex-shrink: 0;
}

.login-modal-btn-code {
  flex-shrink: 0;
  padding: 0 14px;
  height: 100%;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-size: var(--font-md);
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--transition);
}

.login-modal-btn-code:hover:not(:disabled) {
  color: var(--primary);
}

.login-modal-btn-code:disabled {
  color: var(--text-muted);
  cursor: not-allowed;
}

.login-modal-help {
  text-align: right;
  margin: -8px 0 16px;
}

.login-modal-help a {
  font-size: var(--font-sm);
  color: var(--text-muted);
}

.login-modal-help a:hover {
  color: var(--primary);
}

.login-modal-submit {
  width: 100%;
  height: 48px;
  border: none;
  border-radius: 24px;
  background: #f0a89a;
  color: #fff;
  font-size: var(--font-lg);
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--transition);
  margin-bottom: 16px;
}

.login-modal-submit.is-ready {
  background: var(--primary);
}

.login-modal-submit.is-ready:hover {
  background: var(--primary-hover);
}

.login-modal-agreement {
  text-align: center;
  font-size: var(--font-xs);
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.login-modal-agreement a {
  color: var(--text-secondary);
}

.login-modal-agreement a:hover {
  color: var(--primary);
}

.login-modal-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.login-modal-divider::before,
.login-modal-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.login-modal-divider span {
  font-size: var(--font-sm);
  color: var(--text-muted);
  white-space: nowrap;
}

.login-modal-social {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.login-modal-social-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  color: #fff;
  transition: transform var(--transition), opacity var(--transition);
}

.login-modal-social-btn:hover {
  transform: scale(1.08);
  opacity: 0.9;
}

.login-modal-social-btn--keewea { background: #2ecc71; }
.login-modal-social-btn--qq { background: #12b7f5; }
.login-modal-social-btn--weibo { background: #e6162d; }
.login-modal-social-btn--baidu { background: #2932e1; }
.login-modal-social-btn--github { background: #24292e; }
.login-modal-social-btn--huawei { background: #cf0a2c; }
.login-modal-social-btn--gitee { background: #c71d23; }
.login-modal-social-btn--google { background: #fff; color: inherit; border: 1px solid var(--border); }

/* APP 扫码登录 */
.login-modal-app {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 0 4px;
}

.login-modal-qr {
  width: 160px;
  height: 160px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  margin-bottom: 14px;
}

.login-modal-qr svg {
  width: 100%;
  height: 100%;
}

.login-modal-app-tip {
  font-size: var(--font-md);
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.6;
}

@media (max-width: 480px) {
  .login-modal-dialog {
    padding: 28px 20px 24px;
  }

  .login-modal-mascot {
    right: 36px;
  }

  .login-modal-mascot-icon {
    font-size: 28px;
  }

  .register-dialog {
    padding: 24px 20px 20px;
  }
}

/* ========== Register Modal (博客园风格) ========== */
.register-dialog {
  max-width: 480px;
  padding: 28px 36px 24px;
}

.register-brand {
  text-align: center;
  margin-bottom: 24px;
}

.register-brand-icon {
  width: 40px;
  height: 40px;
  margin-bottom: 12px;
}

.register-brand-title {
  font-size: var(--font-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.register-brand-desc {
  font-size: var(--font-md);
  color: var(--text-muted);
  line-height: 1.5;
}

.register-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.register-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.register-field .login-modal-field {
  margin-bottom: 0;
}

.register-label {
  font-size: var(--font-md);
  font-weight: 500;
  color: var(--text-primary);
}

.register-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color var(--transition);
}

.register-input-wrap:focus-within {
  border-color: var(--primary);
}

.register-input-wrap input {
  flex: 1;
  min-width: 0;
  height: 100%;
  padding: 0 14px;
  border: none;
  outline: none;
  font-size: var(--font-base);
  font-family: inherit;
  color: var(--text-primary);
  background: transparent;
}

.register-input-wrap input::placeholder {
  color: var(--text-muted);
}

.register-input-wrap--pwd input {
  padding-right: 40px;
}

.register-pwd-toggle {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 4px;
}

.register-pwd-toggle:hover {
  color: var(--text-secondary);
  background: var(--bg-page);
}

.register-hint {
  font-size: var(--font-xs);
  color: var(--text-muted);
  line-height: 1.4;
}

.register-agree {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: var(--font-sm);
  color: var(--text-secondary);
  line-height: 1.6;
  cursor: pointer;
  margin-top: 4px;
}

.register-agree input {
  flex-shrink: 0;
  margin-top: 3px;
  accent-color: var(--primary);
}

.register-agree a {
  color: var(--primary);
}

.register-submit {
  width: 100%;
  height: 44px;
  margin-top: 4px;
  border: none;
  border-radius: 8px;
  background: #ccc;
  color: #fff;
  font-size: var(--font-base);
  font-weight: 500;
  font-family: inherit;
  cursor: not-allowed;
  transition: background var(--transition);
}

.register-submit.is-ready {
  background: var(--primary);
  cursor: pointer;
}

.register-submit.is-ready:hover {
  background: var(--primary-hover);
}

.login-modal-switch {
  text-align: center;
  font-size: var(--font-md);
  color: var(--text-secondary);
  margin-top: 16px;
}

.login-modal-switch a {
  color: var(--primary);
  font-weight: 500;
}

.login-modal .login-modal-switch {
  margin-bottom: 16px;
}

/* 第三方登录暂不可用弹窗 */
.unavailable-modal {
  position: fixed;
  inset: 0;
  z-index: 2100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.unavailable-modal.is-open {
  opacity: 1;
  visibility: visible;
}

.unavailable-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}

.unavailable-modal-dialog {
  position: relative;
  width: 100%;
  max-width: 360px;
  background: var(--bg-white);
  border-radius: 12px;
  padding: 32px 24px 24px;
  text-align: center;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.unavailable-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  font-size: 24px;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
}

.unavailable-modal-close:hover {
  color: var(--text-primary);
}

.unavailable-modal-icon {
  color: var(--primary);
  margin-bottom: 12px;
}

.unavailable-modal-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.unavailable-modal-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.unavailable-modal-btn {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 16px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.2s ease;
}

.unavailable-modal-btn:hover {
  background: var(--primary-hover);
}