.chat-history-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--bg-primary) 96%, white) 0%, var(--bg-primary) 100%);

  .history-list {
    flex: 1;
    overflow-y: auto;
    padding: 18px 18px 28px;
    display: flex;
    flex-direction: column;
    gap: 0;

    .status-msg {
      text-align: center;
      padding: 40px 20px;
      color: var(--text-tertiary);
      font-size: 14px;

      &.error {
        color: var(--danger);
      }

      &.empty {
        color: var(--text-tertiary);
      }
    }
  }

  .history-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 14px 0 0;

    &.error-item {
      padding: 12px;
      background: var(--bg-secondary);
      border-radius: 8px;
      color: var(--text-tertiary);
      font-size: 13px;
      text-align: center;
      justify-content: center;
    }

    .history-avatar {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      overflow: hidden;
      flex-shrink: 0;
      border: none;
      box-shadow: none;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      display: flex;
      align-items: center;
      justify-content: center;

      .avatar-component.avatar-inner {
        width: 100%;
        height: 100%;
        border-radius: inherit;
        background: transparent;

        img.avatar-image {
          // Forwarded record head images may include a light matte edge.
          // Slightly zoom in to crop that edge and align with normal chat avatars.
          transform: scale(1.12);
          transform-origin: center;
        }
      }
    }

    .content-wrapper {
      flex: 1;
      min-width: 0;
      padding-bottom: 18px;
      border-bottom: 1px solid color-mix(in srgb, var(--border-color) 82%, transparent);

      .header {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        gap: 12px;
        margin-bottom: 4px;

        .sender {
          font-size: 13px;
          font-weight: 400;
          color: color-mix(in srgb, var(--text-secondary) 82%, transparent);
          line-height: 1.3;
        }

        .time {
          font-size: 12px;
          color: color-mix(in srgb, var(--text-tertiary) 92%, transparent);
          flex-shrink: 0;
          margin-left: 8px;
          line-height: 1.3;
        }
      }

      .bubble {
        background: transparent;
        padding: 0;
        border-radius: 0;
        word-wrap: break-word;
        max-width: 100%;
        display: block;

        &.image-bubble {
          padding: 0;
          background: transparent;
        }

        .text-content {
          font-size: 15px;
          line-height: 1.7;
          color: var(--text-primary);
          white-space: pre-wrap;
          word-break: break-word;
        }

        .media-content {
          img {
            max-width: min(100%, 420px);
            max-height: 320px;
            border-radius: 12px;
            display: block;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            background: color-mix(in srgb, var(--bg-secondary) 88%, transparent);
          }

          .media-tip {
            padding: 6px 0;
            color: var(--text-tertiary);
            font-size: 13px;
          }
        }

        .media-placeholder {
          font-size: 13px;
          color: var(--text-secondary);
          padding: 4px 0 0;
        }

        .nested-chat-record-card {
          min-width: 220px;
          max-width: 320px;
          background: color-mix(in srgb, var(--bg-secondary) 97%, #f5f7fb);
          border: 1px solid var(--border-color);
          border-radius: 14px;
          overflow: hidden;
          padding: 0;
          text-align: left;
          cursor: default;
          box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);

          &.clickable {
            cursor: pointer;
            transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;

            &:hover {
              transform: translateY(-1px);
              box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
              border-color: color-mix(in srgb, var(--primary) 28%, var(--border-color));
            }
          }

          &:disabled {
            border: 1px solid var(--border-color);
            opacity: 1;
          }
        }

        .nested-chat-record-title {
          padding: 13px 15px 9px;
          font-size: 14px;
          font-weight: 600;
          color: var(--text-primary);
        }

        .nested-chat-record-list {
          padding: 0 15px 11px;
          display: flex;
          flex-direction: column;
          gap: 4px;
          border-bottom: 1px solid var(--border-color);
        }

        .nested-chat-record-line {
          font-size: 13px;
          line-height: 1.45;
          color: var(--text-secondary);
          white-space: nowrap;
          overflow: hidden;
          text-overflow: ellipsis;
        }

        .nested-chat-record-footer {
          padding: 8px 15px 11px;
          font-size: 12px;
          color: var(--text-tertiary);
        }
      }
    }
  }
}