.xiaoyang-root {
  --xy-blue: #0866d9;
  --xy-blue-strong: #0457be;
  --xy-blue-soft: #edf5ff;
  --xy-ink: #17191d;
  --xy-body: #4f5865;
  --xy-muted: #737d8c;
  --xy-line: #dfe5ec;
  --xy-surface: #ffffff;
  --xy-page: #f6f8fb;
  --xy-danger: #b3261e;
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 85;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  color: var(--xy-ink);
}

.xiaoyang-root * {
  box-sizing: border-box;
  letter-spacing: 0;
}

.xiaoyang-launcher {
  width: 330px;
  display: grid;
  gap: 0;
  overflow: hidden;
  border: 1px solid var(--xy-line);
  border-radius: 8px;
  background: var(--xy-surface);
  color: var(--xy-ink);
  box-shadow: 0 16px 40px rgba(22, 35, 55, 0.16);
}

.xiaoyang-launcher-header {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 11px 11px 10px;
  border-bottom: 1px solid var(--xy-line);
}

.xiaoyang-launcher-avatar {
  width: 36px;
  height: 36px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  background: var(--xy-blue);
  color: #ffffff;
  font-size: 12px;
  font-weight: 800;
}

.xiaoyang-launcher-copy {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.xiaoyang-launcher-copy strong {
  font-size: 14px;
  line-height: 1.25;
}

.xiaoyang-launcher-copy span {
  overflow: hidden;
  color: var(--xy-muted);
  font-size: 11px;
  line-height: 1.4;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.xiaoyang-launcher-action {
  min-width: 48px;
  min-height: 36px;
  padding: 0 8px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--xy-blue-strong);
  font: inherit;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
}

.xiaoyang-launcher-action:hover,
.xiaoyang-launcher-action:focus-visible {
  background: var(--xy-blue-soft);
  outline: none;
}

.xiaoyang-launcher-actions {
  display: flex;
  align-items: center;
  gap: 2px;
}

.xiaoyang-launcher-dismiss {
  min-width: 44px;
  padding: 0;
  font-size: 20px;
  font-weight: 400;
}

.xiaoyang-reopen {
  width: 52px;
  height: 52px;
  border: 1px solid var(--xy-blue);
  border-radius: 8px;
  background: var(--xy-blue);
  box-shadow: 0 12px 30px rgba(22, 35, 55, 0.2);
  color: #ffffff;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.xiaoyang-reopen:hover,
.xiaoyang-reopen:focus-visible {
  background: var(--xy-blue-strong);
  outline: 2px solid rgba(8, 102, 217, 0.18);
  outline-offset: 2px;
}

.xiaoyang-mini-messages {
  height: 92px;
  display: grid;
  align-content: start;
  gap: 8px;
  overflow-y: auto;
  padding: 10px 11px;
  overscroll-behavior: contain;
  background: var(--xy-page);
}

.xiaoyang-mini-quick-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  padding: 9px 11px 0;
}

.xiaoyang-mini-quick {
  min-width: 0;
  min-height: 42px;
  padding: 6px;
  border: 1px solid var(--xy-line);
  border-radius: 6px;
  background: var(--xy-surface);
  color: var(--xy-body);
  font: inherit;
  font-size: 10px;
  line-height: 1.35;
  text-align: center;
  cursor: pointer;
}

.xiaoyang-mini-quick:hover,
.xiaoyang-mini-quick:focus-visible {
  border-color: var(--xy-blue);
  color: var(--xy-blue-strong);
  outline: none;
}

.xiaoyang-mini-empty {
  margin: 0;
  color: var(--xy-body);
  font-size: 12px;
  line-height: 1.6;
}

.xiaoyang-mini-line {
  display: grid;
  gap: 3px;
  justify-items: start;
}

.xiaoyang-mini-line.is-user {
  justify-items: end;
}

.xiaoyang-mini-line > span {
  color: var(--xy-muted);
  font-size: 9px;
}

.xiaoyang-mini-line > p {
  max-width: 88%;
  margin: 0;
  padding: 7px 9px;
  border: 1px solid var(--xy-line);
  border-radius: 6px;
  background: var(--xy-surface);
  color: var(--xy-ink);
  font-size: 11px;
  line-height: 1.5;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.xiaoyang-mini-line.is-user > p {
  border-color: var(--xy-blue);
  background: var(--xy-blue);
  color: #ffffff;
}

.xiaoyang-mini-line.is-error > p {
  border-color: #efc5c2;
  background: #fff5f4;
  color: var(--xy-danger);
}

.xiaoyang-mini-actions {
  display: flex;
  gap: 6px;
  padding: 8px 11px 0;
}

.xiaoyang-mini-actions[hidden] {
  display: none;
}

.xiaoyang-mini-action {
  flex: 1;
  min-height: 32px;
  padding: 0 9px;
  border: 1px solid #bfd0e4;
  border-radius: 6px;
  background: var(--xy-surface);
  color: var(--xy-blue-strong);
  font: inherit;
  font-size: 10px;
  font-weight: 650;
  cursor: pointer;
}

.xiaoyang-mini-action.is-primary {
  border-color: var(--xy-blue);
  background: var(--xy-blue);
  color: #ffffff;
}

.xiaoyang-mini-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 54px;
  gap: 7px;
  padding: 9px 11px 11px;
}

.xiaoyang-mini-input {
  width: 100%;
  min-width: 0;
  height: 40px;
  padding: 0 10px;
  border: 1px solid var(--xy-line);
  border-radius: 6px;
  background: var(--xy-surface);
  color: var(--xy-ink);
  font: inherit;
  font-size: 12px;
}

.xiaoyang-mini-input:focus {
  border-color: var(--xy-blue);
  outline: 2px solid rgba(8, 102, 217, 0.15);
}

.xiaoyang-mini-send {
  height: 40px;
  padding: 0;
  border: 1px solid var(--xy-blue);
  border-radius: 6px;
  background: var(--xy-blue);
  color: #ffffff;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.xiaoyang-panel {
  position: absolute;
  right: 0;
  bottom: 0;
  width: min(408px, calc(100vw - 32px));
  height: min(690px, calc(100vh - 40px));
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  overflow: hidden;
  border: 1px solid var(--xy-line);
  border-radius: 8px;
  background: var(--xy-surface);
  box-shadow: 0 24px 72px rgba(22, 35, 55, 0.2);
}

.xiaoyang-panel[hidden] {
  display: none;
}

.xiaoyang-header {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px 12px 16px;
  border-bottom: 1px solid var(--xy-line);
  background: var(--xy-surface);
}

.xiaoyang-identity {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.xiaoyang-avatar {
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--xy-blue);
  color: #ffffff;
  font-size: 13px;
  font-weight: 800;
}

.xiaoyang-name {
  min-width: 0;
  display: grid;
  gap: 2px;
}

img.xiaoyang-avatar,
img.xiaoyang-launcher-avatar {
  object-fit: contain;
  background: #ffffff;
}

.xiaoyang-name strong {
  font-size: 15px;
  line-height: 1.2;
}

.xiaoyang-status {
  overflow: hidden;
  color: var(--xy-muted);
  font-size: 11px;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.xiaoyang-header-actions {
  display: flex;
  gap: 4px;
}

.xiaoyang-icon-button {
  min-width: 42px;
  height: 42px;
  padding: 0 9px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--xy-body);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}

.xiaoyang-icon-button:hover,
.xiaoyang-icon-button:focus-visible {
  background: var(--xy-blue-soft);
  color: var(--xy-blue-strong);
  outline: none;
}

.xiaoyang-close {
  width: 42px;
  padding: 0;
  font-size: 24px;
  font-weight: 300;
}

.xiaoyang-scroll {
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--xy-page);
}

.xiaoyang-content {
  display: grid;
  gap: 14px;
  padding: 16px;
}

.xiaoyang-intro {
  display: grid;
  gap: 8px;
  padding: 14px;
  border: 1px solid var(--xy-line);
  border-radius: 8px;
  background: var(--xy-surface);
}

.xiaoyang-intro strong {
  font-size: 15px;
}

.xiaoyang-intro p,
.xiaoyang-privacy-note,
.xiaoyang-contact-prompt p,
.xiaoyang-contact-form p {
  margin: 0;
  color: var(--xy-body);
  font-size: 12px;
  line-height: 1.65;
}

.xiaoyang-quick-list {
  display: grid;
  gap: 7px;
}

.xiaoyang-quick {
  width: 100%;
  min-height: 42px;
  padding: 9px 11px;
  border: 1px solid var(--xy-line);
  border-radius: 6px;
  background: var(--xy-surface);
  color: var(--xy-body);
  font: inherit;
  font-size: 12px;
  line-height: 1.45;
  text-align: left;
  cursor: pointer;
}

.xiaoyang-quick:hover,
.xiaoyang-quick:focus-visible {
  border-color: var(--xy-blue);
  color: var(--xy-blue-strong);
  outline: none;
}

.xiaoyang-messages {
  display: grid;
  gap: 12px;
}

.xiaoyang-message {
  display: grid;
  gap: 6px;
}

.xiaoyang-message.is-user {
  justify-items: end;
}

.xiaoyang-message-label {
  color: var(--xy-muted);
  font-size: 10px;
}

.xiaoyang-bubble {
  max-width: 88%;
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--xy-line);
  border-radius: 8px;
  background: var(--xy-surface);
  color: var(--xy-ink);
  font-size: 13px;
  line-height: 1.7;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.xiaoyang-message.is-user .xiaoyang-bubble {
  border-color: var(--xy-blue);
  background: var(--xy-blue);
  color: #ffffff;
}

.xiaoyang-message.is-error .xiaoyang-bubble {
  border-color: #efc5c2;
  background: #fff5f4;
  color: var(--xy-danger);
}

.xiaoyang-sources {
  max-width: 88%;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.xiaoyang-source {
  padding: 5px 7px;
  border: 1px solid var(--xy-line);
  border-radius: 5px;
  background: var(--xy-surface);
  color: var(--xy-blue-strong);
  font-size: 10px;
  line-height: 1.4;
  text-decoration: none;
}

.xiaoyang-source:hover,
.xiaoyang-source:focus-visible {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.xiaoyang-answer-actions {
  max-width: 88%;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.xiaoyang-answer-button {
  min-height: 36px;
  padding: 0 11px;
  border: 1px solid #bfd0e4;
  border-radius: 6px;
  background: var(--xy-surface);
  color: var(--xy-blue-strong);
  font: inherit;
  font-size: 11px;
  font-weight: 650;
  cursor: pointer;
}

.xiaoyang-answer-button.is-primary {
  border-color: var(--xy-blue);
  background: var(--xy-blue);
  color: #ffffff;
}

.xiaoyang-answer-button:hover,
.xiaoyang-answer-button:focus-visible {
  border-color: var(--xy-blue);
  outline: 2px solid rgba(8, 102, 217, 0.15);
  outline-offset: 1px;
}

.xiaoyang-contact-prompt,
.xiaoyang-contact-form {
  display: grid;
  gap: 11px;
  padding: 14px;
  border: 1px solid #bbd5f5;
  border-radius: 8px;
  background: var(--xy-blue-soft);
}

.xiaoyang-contact-prompt strong,
.xiaoyang-contact-form h3 {
  margin: 0;
  font-size: 14px;
}

.xiaoyang-inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.xiaoyang-button {
  min-height: 42px;
  padding: 0 13px;
  border: 1px solid var(--xy-line);
  border-radius: 6px;
  background: var(--xy-surface);
  color: var(--xy-ink);
  font: inherit;
  font-size: 12px;
  font-weight: 650;
  cursor: pointer;
}

.xiaoyang-button.is-primary {
  border-color: var(--xy-blue);
  background: var(--xy-blue);
  color: #ffffff;
}

.xiaoyang-button:hover,
.xiaoyang-button:focus-visible {
  border-color: var(--xy-blue);
  outline: none;
}

.xiaoyang-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
}

.xiaoyang-field {
  display: grid;
  gap: 5px;
  color: var(--xy-body);
  font-size: 11px;
}

.xiaoyang-field.is-wide {
  grid-column: 1 / -1;
}

.xiaoyang-field input,
.xiaoyang-field select {
  width: 100%;
  min-height: 42px;
  padding: 8px 10px;
  border: 1px solid var(--xy-line);
  border-radius: 6px;
  background: var(--xy-surface);
  color: var(--xy-ink);
  font: inherit;
  font-size: 13px;
}

.xiaoyang-field input:focus,
.xiaoyang-field select:focus,
.xiaoyang-textarea:focus {
  border-color: var(--xy-blue);
  outline: 2px solid rgba(8, 102, 217, 0.15);
}

.xiaoyang-contact-notice {
  color: var(--xy-muted) !important;
  font-size: 10px !important;
}

.xiaoyang-form-message {
  min-height: 18px;
  color: var(--xy-danger) !important;
}

.xiaoyang-composer-wrap {
  display: grid;
  gap: 8px;
  padding: 11px 12px 12px;
  border-top: 1px solid var(--xy-line);
  background: var(--xy-surface);
}

.xiaoyang-composer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: end;
}

.xiaoyang-textarea {
  width: 100%;
  min-height: 44px;
  max-height: 112px;
  resize: none;
  padding: 10px 11px;
  border: 1px solid var(--xy-line);
  border-radius: 6px;
  background: var(--xy-surface);
  color: var(--xy-ink);
  font: inherit;
  font-size: 13px;
  line-height: 1.5;
}

.xiaoyang-send {
  min-width: 64px;
  height: 44px;
  padding: 0 12px;
  border: 1px solid var(--xy-blue);
  border-radius: 6px;
  background: var(--xy-blue);
  color: #ffffff;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.xiaoyang-send:disabled,
.xiaoyang-button:disabled,
.xiaoyang-quick:disabled,
.xiaoyang-mini-quick:disabled,
.xiaoyang-mini-action:disabled,
.xiaoyang-mini-send:disabled,
.xiaoyang-mini-input:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.xiaoyang-composer-meta {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  color: var(--xy-muted);
  font-size: 10px;
  line-height: 1.45;
}

@media (max-width: 640px) {
  body.xiaoyang-open {
    overflow: hidden;
  }

  .xiaoyang-root {
    right: 10px;
    bottom: calc(68px + env(safe-area-inset-bottom));
  }

  .xiaoyang-launcher {
    width: min(340px, calc(100vw - 20px));
    min-width: 0;
    display: grid;
    border-color: var(--xy-line);
    background: var(--xy-surface);
    color: var(--xy-ink);
    box-shadow: 0 14px 34px rgba(22, 35, 55, 0.18);
  }

  .xiaoyang-launcher-header {
    display: grid;
    min-height: 48px;
    padding: 2px 8px;
    border-bottom: 1px solid var(--xy-line);
  }

  .xiaoyang-launcher-copy span {
    display: none;
  }

  .xiaoyang-launcher-action {
    min-height: 44px;
    color: var(--xy-blue-strong);
    font-size: 11px;
  }

  .xiaoyang-launcher-action:hover,
  .xiaoyang-launcher-action:focus-visible {
    background: var(--xy-blue-soft);
  }

  .xiaoyang-mini-messages {
    height: 36px;
    padding: 4px 10px;
  }

  .xiaoyang-mini-quick-list {
    padding: 4px 10px 0;
  }

  .xiaoyang-mini-actions {
    padding: 4px 10px 0;
  }

  .xiaoyang-mini-action,
  .xiaoyang-mini-quick,
  .xiaoyang-mini-input,
  .xiaoyang-mini-send {
    min-height: 44px;
  }

  .xiaoyang-mini-form {
    padding: 4px 10px 6px;
  }

  .xiaoyang-panel {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100dvh;
    border: 0;
    border-radius: 0;
  }

  .xiaoyang-header {
    padding-top: max(12px, env(safe-area-inset-top));
  }

  .xiaoyang-content {
    padding: 13px;
  }

  .xiaoyang-composer-wrap {
    padding-bottom: max(12px, env(safe-area-inset-bottom));
  }

  .xiaoyang-form-grid {
    grid-template-columns: 1fr;
  }

  .xiaoyang-field.is-wide {
    grid-column: auto;
  }

  .xiaoyang-bubble,
  .xiaoyang-sources,
  .xiaoyang-answer-actions {
    max-width: 92%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .xiaoyang-root *,
  .xiaoyang-root *::before,
  .xiaoyang-root *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}