/**
 * 加入我们页面样式
 * 纯白单页，分步身份选择，动态表单，精致极简
 */

/* ========== 整体布局 ========== */
.join-container {
  min-height: 100vh;
  background: var(--bg-white);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 80px 24px 120px;
  position: relative;
}

.join-content {
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
}

/* ========== 品牌返回区 ========== */
.join-back-link {
  position: fixed;
  top: 32px;
  left: 32px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-md);
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-base);
  z-index: 100;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  background: var(--bg-white);
}

.join-back-link:hover {
  color: var(--text-primary);
  background: var(--bg-gray-50);
}

.join-back-icon {
  width: 18px;
  height: 18px;
}

/* ========== 页面头部 ========== */
.join-header {
  margin-bottom: 48px;
}

.join-title {
  font-size: var(--font-size-7xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  text-align: center;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.join-subtitle {
  font-size: var(--font-size-xl);
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 16px;
}

.join-description {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  text-align: center;
  line-height: var(--line-height-loose);
  max-width: 560px;
  margin: 0 auto;
}

/* ========== 进度指示器 ========== */
.join-progress {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
}

.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.progress-circle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  transition: all var(--transition-base);
}

.progress-circle.pending {
  border: 2px solid var(--border-color);
  color: var(--text-tertiary);
  background: var(--bg-white);
}

.progress-circle.current {
  background: var(--color-primary);
  color: var(--text-inverse);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}

.progress-circle.completed {
  background: var(--color-primary);
  color: var(--text-inverse);
}

.progress-label {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  font-weight: var(--font-weight-medium);
}

.progress-label.current {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.progress-line {
  width: 40px;
  height: 2px;
  background: var(--border-color);
  transition: background var(--transition-base);
}

.progress-line.completed {
  background: var(--color-primary);
}

/* ========== Step 1: 身份选择 ========== */
.identity-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

@media (max-width: 768px) {
  .identity-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .identity-grid {
    grid-template-columns: 1fr;
  }
}

.identity-card {
  padding: 24px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all 0.25s ease;
  text-align: center;
  background: var(--bg-white);
  position: relative;
}

.identity-card:hover {
  border-color: var(--border-color-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

.identity-card.selected {
  border-color: var(--color-primary);
  background: #FAFBFF;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.08);
}

.identity-checkmark {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 20px;
  height: 20px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--text-inverse);
  font-size: var(--font-size-sm);
}

.identity-card.selected .identity-checkmark {
  display: flex;
}

.identity-icon {
  width: 32px;
  height: 32px;
  margin: 0 auto 12px;
  color: var(--text-secondary);
  transition: color var(--transition-base);
}

.identity-card.selected .identity-icon {
  color: var(--color-primary);
}

.identity-name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: 6px;
}

.identity-desc {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  line-height: 1.4;
}

/* ========== 按钮 ========== */
.join-button {
  width: 100%;
  max-width: 200px;
  margin: 0 auto;
  display: block;
  height: 48px;
  background: var(--color-primary);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--radius-lg);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all var(--transition-base);
}

.join-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.join-button:not(:disabled):hover {
  background: var(--color-primary-hover);
}

.join-button:not(:disabled):active {
  transform: scale(0.98);
}

/* ========== Step 2: 动态表单 ========== */
.form-section {
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.form-section-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-section-line {
  width: 16px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}

/* 表单字段 */
.form-field {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-required {
  color: var(--color-error);
  margin-left: 2px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-lg);
  color: var(--text-primary);
  background: var(--bg-white);
  transition: all var(--transition-base);
  font-family: var(--font-family-base);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.08);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-tertiary);
}

.form-textarea {
  min-height: 120px;
  padding: 12px 16px;
  resize: vertical;
}

/* 邮箱字段强调 */
.email-field-wrapper {
  position: relative;
}

.email-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-tertiary);
}

.email-field-wrapper .form-input {
  padding-left: 42px;
}

.email-hint {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  margin-top: 6px;
}

/* 标签组（多选） */
.tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-item {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: var(--font-size-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
  user-select: none;
}

.tag-item:hover {
  border-color: var(--border-color-dark);
}

.tag-item.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

/* 按钮组 */
.button-group {
  display: flex;
  gap: 12px;
  margin-top: 32px;
}

.button-group .join-button {
  flex: 1;
  max-width: none;
}

.button-secondary {
  background: var(--bg-gray-100);
  color: var(--text-secondary);
}

.button-secondary:hover {
  background: var(--bg-gray-200);
}

/* Loading态 */
.join-button.loading {
  opacity: 0.8;
  cursor: not-allowed;
}

.button-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--text-inverse);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
  display: inline-block;
  margin-right: 8px;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 协议声明 */
.agreement-wrapper {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 24px;
}

.custom-checkbox {
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--border-color-dark);
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  margin-top: 2px;
}

.custom-checkbox.checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.checkbox-icon {
  width: 10px;
  height: 10px;
  color: var(--text-inverse);
}

.agreement-text {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  line-height: var(--line-height-normal);
}

.agreement-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
}

.agreement-link:hover {
  color: var(--color-primary-hover);
}

/* ========== Step 3: 提交成功页 ========== */
.success-page {
  text-align: center;
  animation: fadeIn 0.5s ease;
}

.success-icon-wrapper {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  background: var(--color-success-light);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-success);
}

.success-icon {
  width: 32px;
  height: 32px;
  stroke-dasharray: 48;
  stroke-dashoffset: 48;
  animation: drawCheck 0.6s ease 0.3s forwards;
}

@keyframes drawCheck {
  to {
    stroke-dashoffset: 0;
  }
}

.success-title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: 12px;
}

.success-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: 16px;
}

.email-notice-card {
  background: var(--bg-gray-50);
  border: 1px solid var(--bg-gray-100);
  border-radius: var(--radius-xl);
  padding: 20px;
  max-width: 480px;
  margin: 0 auto 32px;
  text-align: left;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.email-notice-icon {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.email-notice-content {
  flex: 1;
}

.email-notice-title {
  font-size: var(--font-size-md);
  color: var(--text-secondary);
  font-weight: var(--font-weight-medium);
  margin-bottom: 4px;
}

.email-notice-desc {
  font-size: var(--font-size-base);
  color: var(--text-tertiary);
  line-height: var(--line-height-normal);
}

/* 时间线 */
.timeline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-bottom: 40px;
}

.timeline-node {
  text-align: center;
}

.timeline-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  margin: 0 auto 8px;
}

.timeline-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.timeline-line {
  width: 40px;
  height: 1px;
  background: var(--border-color);
}

/* 辅助链接 */
.aux-link {
  margin-top: 16px;
  font-size: var(--font-size-md);
  color: var(--text-secondary);
}

.aux-link a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
}

.aux-link a:hover {
  color: var(--color-primary-hover);
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
  .join-container {
    padding: 60px 20px;
  }

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