/* Ghost-style discussion surface, using the theme's color and font tokens. */
#comments {
  color: var(--color-typography);
  font-family: var(--font-body);
  --siwei-fc-panel-radius: var(--radius-lg, 24px);
  --siwei-fc-control-radius: var(--radius-md, 22px);
  --siwei-fc-control-border: var(--color-border);
  --siwei-fc-thread-indent: 36px;
  --siwei-fc-guide-radius: 10px;
  --siwei-fc-guide-gap: 4px;
  --siwei-fc-guide-color: color-mix(in srgb, var(--color-border) 80%, var(--color-typography-tone));
}

#comments *,
#comments *::before,
#comments *::after {
  box-sizing: border-box;
}

#comments [hidden] {
  display: none !important;
}

#comments .siwei-fc-panel {
  width: min(100%, 680px);
  margin: 0 auto;
  padding: 16px 24px 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--siwei-fc-panel-radius);
  background: var(--color-background-tone);
  box-shadow: none;
}

#comments .siwei-fc-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

#comments .siwei-fc-heading h2 {
  margin: 0;
  color: var(--color-typography);
  font-family: var(--font-headings);
  font-size: 24px;
  font-weight: 750;
  line-height: 36px;
}

#comments .siwei-fc-count {
  flex: none;
  color: var(--color-typography-tone);
  font-size: 16.5px;
  line-height: 1.5;
  white-space: nowrap;
}

#comments .siwei-fc-submit {
  border: 1px solid transparent;
  border-radius: var(--siwei-fc-control-radius);
  background: var(--color-brand, #d4563f);
  color: var(--color-brand-contrast, #fff);
  font-family: var(--font-body);
  font-weight: 700;
  cursor: pointer;
  transition: filter .2s ease;
}

#comments .siwei-fc-submit:hover {
  filter: brightness(1.1);
}

#comments .siwei-fc-reply-context {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  color: var(--color-typography-tone);
  font-size: 13px;
  line-height: 1.5;
}

#comments .siwei-fc-cancel-reply {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--color-brand);
  font: inherit;
  cursor: pointer;
}

#comments .siwei-fc-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 20px;
  color: var(--color-typography-tone);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
}

#comments .siwei-fc-sort {
  display: inline-flex;
  align-items: center;
  width: 44px;
  min-height: 44px;
  margin-block: -6px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--color-typography);
  font: inherit;
  cursor: pointer;
  transition: color .22s ease;
}

#comments .siwei-fc-sort:hover {
  color: var(--color-brand);
}

#comments .siwei-fc-sort:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 3px;
  border-radius: var(--radius-xxs, 12px);
}

#comments .siwei-fc-sort:disabled {
  cursor: wait;
}

#comments .siwei-fc-sort__labels {
  display: grid;
  place-items: center;
  overflow: hidden;
  width: 2em;
  height: 1.5em;
}

#comments .siwei-fc-sort__labels span {
  grid-area: 1 / 1;
  white-space: nowrap;
  transition: opacity .18s ease;
}

#comments .siwei-fc-sort[data-sort="NF"] [data-label="OF"] {
  opacity: 0;
}

#comments .siwei-fc-sort[data-sort="OF"] [data-label="NF"] {
  opacity: 0;
}

#comments .siwei-fc-state,
#comments .siwei-fc-form-status {
  color: var(--color-typography-tone);
  font-size: 13px;
  line-height: 1.5;
}

#comments .siwei-fc-state {
  margin: 0 0 12px;
}

#comments .siwei-fc-form-status {
  margin: 0;
}

#comments .siwei-fc-state.is-error,
#comments .siwei-fc-form-status.is-error {
  color: var(--color-error);
}

#comments .siwei-fc-list,
#comments .siwei-fc-comment__replies {
  margin: 0;
  padding: 0;
  list-style: none;
}

#comments .siwei-fc-list {
  transition: opacity .14s ease;
}

#comments .siwei-fc-list.is-sort-switching {
  opacity: 0;
}

#comments .siwei-fc-comment {
  position: relative;
  min-width: 0;
  padding: 0 0 24px;
  overflow-wrap: anywhere;
}

/* The shared vertical guide ends where the final direct reply curves toward its avatar. */
#comments .siwei-fc-comment:has(> .siwei-fc-comment__replies)::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 13.5px;
  width: 1px;
  height: var(--siwei-fc-rail-height, 0px);
  background: var(--siwei-fc-guide-color);
  pointer-events: none;
}

#comments .siwei-fc-comment + .siwei-fc-comment {
  padding-top: 8px;
}

#comments .siwei-fc-comment__row {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  align-items: start;
  gap: 11px;
}

#comments .siwei-fc-comment__avatar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  overflow: hidden;
  border-radius: 50%;
  background: #d7a947;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
}

#comments .siwei-fc-comment__avatar img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#comments .siwei-fc-comment__content {
  min-width: 0;
}

#comments .siwei-fc-comment__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 6px;
  margin: 1px 0 5px;
  color: var(--color-typography-tone);
  font-size: 12px;
  line-height: 1.5;
}

#comments .siwei-fc-comment__author {
  color: var(--color-typography);
  font-size: 13px;
  font-weight: 700;
}

#comments .siwei-fc-comment.is-deleted .siwei-fc-comment__avatar {
  background: var(--color-border);
  color: var(--color-typography-tone);
}

#comments .siwei-fc-comment.is-deleted .siwei-fc-comment__author {
  color: var(--color-typography-tone);
}

#comments .siwei-fc-comment__date::before {
  content: "·";
  margin-right: 6px;
}

#comments .siwei-fc-comment__body {
  color: var(--color-typography);
  font-size: 16.5px;
  line-height: 1.5;
  white-space: pre-wrap;
}

#comments .siwei-fc-comment__body a,
#comments .siwei-fc-editor a {
  color: var(--color-brand);
  text-decoration: underline;
  text-underline-offset: 2px;
}

#comments .siwei-fc-comment__body img,
#comments .siwei-fc-editor img {
  display: block;
  max-width: 100%;
  max-height: 420px;
  width: auto;
  height: auto;
  margin: 8px 0;
  border-radius: var(--radius-xs, 10px);
  object-fit: contain;
}

#comments .siwei-fc-comment__body pre {
  overflow-x: auto;
  white-space: pre;
}

#comments .siwei-fc-comment__actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 7px;
}

#comments .siwei-fc-comment__reply,
#comments .siwei-fc-comment__delete {
  display: inline-flex;
  align-items: center;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--color-typography-tone);
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 1.5;
  cursor: pointer;
}

#comments .siwei-fc-comment__reply:hover,
#comments .siwei-fc-comment__delete:hover {
  color: var(--color-brand);
}

#comments .siwei-fc-delete-dialog {
  inset: 0;
  width: min(420px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  margin: auto;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--siwei-fc-panel-radius);
  background: var(--color-background);
  color: var(--color-typography);
  font-family: var(--font-body);
  box-shadow: 0 22px 60px rgba(0, 0, 0, .16);
  outline: none;
}

#comments .siwei-fc-delete-dialog::backdrop {
  background: rgba(0, 0, 0, .3);
  backdrop-filter: blur(4px);
}

#comments .siwei-fc-delete-dialog h3 {
  margin: 0;
  font-family: var(--font-headings);
  font-size: 21px;
  line-height: 1.4;
}

#comments .siwei-fc-delete-dialog p {
  margin: 0;
  color: var(--color-typography-tone);
  font-size: 14px;
  line-height: 1.6;
}

#comments .siwei-fc-delete-status {
  margin-top: 12px !important;
  color: var(--color-error) !important;
}

#comments .siwei-fc-delete-dialog__actions {
  display: flex;
  gap: 10px;
  margin-top: 24px;
}

#comments .siwei-fc-delete-dialog__actions button {
  flex: 1 1 0;
  min-height: 43px;
  padding: 9px 12px;
  border: 1px solid var(--siwei-fc-control-border);
  border-radius: var(--siwei-fc-control-radius);
  background: var(--color-background-tone);
  color: var(--color-typography);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

#comments .siwei-fc-delete-dialog__actions .siwei-fc-delete-cancel {
  border-color: transparent;
  background: var(--color-brand);
  color: var(--color-brand-contrast, #fff);
}

#comments .siwei-fc-delete-dialog__actions .siwei-fc-delete-cancel:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--color-brand-contrast, #fff);
}

#comments .siwei-fc-delete-dialog__actions .siwei-fc-delete-confirm {
  border-color: var(--siwei-fc-control-border);
  background: var(--color-background);
  color: var(--color-typography);
}

#comments .siwei-fc-delete-dialog__actions .siwei-fc-delete-confirm:focus-visible {
  outline-color: var(--color-typography-tone);
}

#comments .siwei-fc-comment__replies {
  margin: 13px 0 0 var(--siwei-fc-thread-indent);
}

#comments .siwei-fc-comment__replies > .siwei-fc-comment {
  padding: 11px 0 12px;
}

/* Every direct reply branches from the same guide with the same small curve. */
#comments .siwei-fc-comment__replies > .siwei-fc-comment::after {
  content: "";
  position: absolute;
  top: calc(25px - var(--siwei-fc-guide-radius));
  left: calc(13.5px - var(--siwei-fc-thread-indent));
  width: calc(var(--siwei-fc-thread-indent) - 13.5px - var(--siwei-fc-guide-gap));
  height: var(--siwei-fc-guide-radius);
  border-left: 1px solid var(--siwei-fc-guide-color);
  border-bottom: 1px solid var(--siwei-fc-guide-color);
  border-bottom-left-radius: var(--siwei-fc-guide-radius);
  pointer-events: none;
}

#comments .siwei-fc-more {
  display: block;
  margin: 8px auto 0;
  padding: 7px 12px;
  border: 1px solid var(--siwei-fc-control-border);
  border-radius: var(--siwei-fc-control-radius);
  background: var(--color-background);
  color: var(--color-typography);
  font-family: var(--font-body);
  font-size: 13px;
  cursor: pointer;
}

#comments .siwei-fc-more:hover {
  background: var(--color-background-tone);
}

#comments .siwei-fc-form {
  display: grid;
  gap: 12px;
  margin: 0 0 24px;
}

#comments .siwei-fc-actions {
  display: flex;
  align-items: stretch;
  gap: 10px;
}

#comments .siwei-fc-field label {
  display: block;
  margin-bottom: 6px;
  color: var(--color-typography);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
}

#comments .siwei-fc-field input,
#comments .siwei-fc-field textarea,
#comments .siwei-fc-editor {
  display: block;
  width: 100%;
  min-width: 0;
  padding: 10px 12px;
  border: 1px solid var(--siwei-fc-control-border);
  border-radius: var(--siwei-fc-control-radius);
  outline: 0;
  background: var(--color-background);
  color: var(--color-typography);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  box-shadow: none;
  appearance: none;
  transition: border-color .2s ease;
}

#comments .siwei-fc-field input:focus,
#comments .siwei-fc-field textarea:focus,
#comments .siwei-fc-editor:focus {
  border-color: var(--color-brand);
  box-shadow: none;
}

#comments .siwei-fc-field textarea {
  min-height: 96px;
  resize: vertical;
}

#comments .siwei-fc-editor {
  min-height: 96px;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

#comments .siwei-fc-editor.is-empty::before {
  content: attr(data-placeholder);
  color: var(--color-typography-tone);
  opacity: .65;
  pointer-events: none;
}

#comments .siwei-fc-format-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 3px;
  margin-top: 7px;
}

#comments .siwei-fc-format-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  min-height: 32px;
  padding: 5px;
  border: 0;
  border-radius: var(--radius-xxs, 10px);
  background: transparent;
  color: var(--color-typography);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  transition: background-color .18s ease, color .18s ease;
}

#comments .siwei-fc-format-button svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

#comments .siwei-fc-format-button[data-action="bold"] {
  font-weight: 750;
}

#comments .siwei-fc-format-button[data-action="italic"] {
  font-style: italic;
}

#comments .siwei-fc-format-button[data-action="underline"] {
  text-decoration: underline;
  text-underline-offset: 2px;
}

#comments .siwei-fc-format-button[data-action="strikethrough"] {
  text-decoration: line-through;
}

#comments .siwei-fc-format-button:hover {
  background: var(--color-background);
  color: var(--color-brand);
}

#comments .siwei-fc-format-button:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 2px;
}

#comments .siwei-fc-format-popover {
  margin-top: 8px;
  padding: 12px;
  border: 1px solid var(--siwei-fc-control-border);
  border-radius: var(--radius-md, 18px);
  background: var(--color-background);
  box-shadow: var(--shadow);
}

#comments .siwei-fc-format-popover input {
  min-width: 0;
  min-height: 36px;
  padding: 7px 10px;
  border: 1px solid var(--siwei-fc-control-border);
  border-radius: var(--radius-xs, 10px);
  background: var(--color-background);
  color: var(--color-typography);
  font: 14px/1.4 var(--font-body);
}

#comments .siwei-fc-format-popover button {
  min-height: 36px;
  padding: 7px 10px;
  border: 1px solid var(--siwei-fc-control-border);
  border-radius: var(--radius-xs, 10px);
  background: var(--color-background-tone);
  color: var(--color-typography);
  font: 600 13px/1.4 var(--font-body);
  cursor: pointer;
}

#comments .siwei-fc-format-popover button:hover {
  color: var(--color-brand);
}

#comments .siwei-fc-link-popover {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

#comments .siwei-fc-link-popover input {
  flex: 1 1 180px;
}

#comments .siwei-fc-gif-popover {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

#comments .siwei-fc-gif-grid,
#comments .siwei-fc-gif-status {
  grid-column: 1 / -1;
}

#comments .siwei-fc-gif-status {
  margin: 0;
  color: var(--color-typography-tone);
  font-size: 13px;
}

#comments .siwei-fc-gif-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 7px;
  max-height: 272px;
  overflow-y: auto;
}

#comments .siwei-fc-gif-grid .siwei-fc-gif-choice {
  display: block;
  min-height: 0;
  padding: 0;
  overflow: hidden;
}

#comments .siwei-fc-gif-choice img {
  display: block;
  width: 100%;
  height: 84px;
  object-fit: cover;
}

#comments .siwei-fc-field input::placeholder,
#comments .siwei-fc-field textarea::placeholder {
  color: var(--color-typography-tone);
  opacity: .65;
}

#comments .siwei-fc-submit {
  min-width: 128px;
  min-height: 43px;
  padding: 10px 16px;
  font-size: 15px;
  line-height: 1.4;
}

#comments .siwei-fc-auth {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 128px;
  min-height: 43px;
  padding: 10px 16px;
  box-sizing: border-box;
  border: 1px solid var(--siwei-fc-control-border);
  border-radius: var(--siwei-fc-control-radius);
  background: var(--color-background);
  color: var(--color-typography);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  text-decoration: none;
  transition: background-color .2s ease;
}

#comments .siwei-fc-auth:hover {
  background: var(--color-background-tone);
}

#comments .siwei-fc-auth:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 2px;
}

#comments button:disabled {
  cursor: not-allowed;
  opacity: .55;
}

#comments button:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 2px;
}

[data-color-scheme="dark"] #comments {
  --siwei-fc-control-border: color-mix(in srgb, var(--color-border) 70%, var(--color-typography-tone));
}

@media (prefers-color-scheme: dark) {
  [data-color-scheme="system"] #comments {
    --siwei-fc-control-border: color-mix(in srgb, var(--color-border) 70%, var(--color-typography-tone));
  }
}

@media (max-width: 640px) {
  #comments {
    --siwei-fc-thread-indent: 28px;
  }

  #comments .siwei-fc-panel {
    width: calc(100% - 24px);
    padding: 18px 18px 22px;
  }

  /* Deep conversations keep a readable text width on a narrow screen. */
  #comments .siwei-fc-comment__replies .siwei-fc-comment__replies
    .siwei-fc-comment__replies .siwei-fc-comment__replies {
    margin-left: 0;
  }

  #comments .siwei-fc-comment__replies .siwei-fc-comment__replies
    .siwei-fc-comment__replies > .siwei-fc-comment:has(> .siwei-fc-comment__replies)::before,
  #comments .siwei-fc-comment__replies .siwei-fc-comment__replies
    .siwei-fc-comment__replies .siwei-fc-comment__replies
    > .siwei-fc-comment::after {
    display: none;
  }

  #comments .siwei-fc-submit,
  #comments .siwei-fc-auth {
    flex: 1 1 0;
    min-width: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  #comments .siwei-fc-sort,
  #comments .siwei-fc-sort__labels span,
  #comments .siwei-fc-list {
    transition: none;
  }
}