:root {
  --companion-navy: #071c3f;
  --companion-blue: #1e66f5;
  --companion-violet: #6e40ff;
  --companion-gold: #e1b95b;
  --companion-ink: #13121a;
  --companion-muted: #706e82;
  --companion-line: #e8e7f2;
  --companion-surface: #ffffff;
}

/* 旧课程和百科助手不再向用户索取供应商 Key。 */
.ds-key-area,
.chat-fab,
#dsWidget,
#live2dMiniIcon,
#waifu,
#waifu-toggle {
  display: none !important;
}

.sl-companion-root,
.sl-companion-root * {
  box-sizing: border-box;
}

.sl-companion-root {
  position: fixed;
  right: max(18px, env(safe-area-inset-right, 0px));
  bottom: max(18px, env(safe-area-inset-bottom, 0px));
  z-index: 8600;
  color: var(--companion-ink);
  font-family: Inter, "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  isolation: isolate;
  transition: opacity 160ms ease, transform 160ms ease;
}

.sl-companion-root[data-avoiding="true"] {
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
}

.sl-companion-dock {
  position: relative;
  width: 312px;
  min-height: 154px;
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  align-items: end;
  filter: drop-shadow(0 22px 30px rgba(7, 28, 63, 0.16));
  transition: opacity 180ms ease, transform 260ms cubic-bezier(.22, 1, .36, 1);
}

.sl-companion-root[data-panel-open="true"] .sl-companion-dock,
.sl-companion-root[data-collapsed="true"] .sl-companion-dock {
  pointer-events: none;
  opacity: 0;
  transform: translateY(18px) scale(.94);
}

.sl-companion-character {
  position: relative;
  z-index: 2;
  width: 158px;
  height: 150px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.sl-companion-character img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center bottom;
  transform-origin: 54% 78%;
  animation: sl-companion-float 4.8s ease-in-out infinite;
  user-select: none;
  -webkit-user-drag: none;
}

.sl-companion-character:hover img {
  transform: translateY(-4px) rotate(-1deg);
}

.sl-companion-character:focus-visible,
.sl-companion-collapse:focus-visible,
.sl-companion-orb:focus-visible,
.sl-companion-panel button:focus-visible,
.sl-companion-panel textarea:focus-visible,
.sl-companion-panel a:focus-visible {
  outline: 3px solid rgba(110, 64, 255, .28);
  outline-offset: 3px;
}

.sl-companion-presence {
  position: absolute;
  left: 22px;
  bottom: 1px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 27px;
  padding: 0 9px;
  border-radius: 9px;
  background: var(--companion-navy);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(7, 28, 63, .22);
}

.sl-companion-presence::before,
.sl-companion-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #36d89a;
  box-shadow: 0 0 0 3px rgba(54, 216, 154, .16);
  content: "";
}

.sl-companion-callout {
  position: relative;
  align-self: center;
  margin: 0 0 18px -8px;
  padding: 15px 42px 15px 17px;
  border: 1px solid rgba(110, 64, 255, .16);
  border-radius: 18px 18px 6px 18px;
  background: rgba(255, 255, 255, .98);
  box-shadow: 0 18px 42px rgba(79, 70, 138, .14);
}

.sl-companion-callout strong,
.sl-companion-callout span {
  display: block;
}

.sl-companion-callout strong {
  margin-bottom: 3px;
  font-size: 14px;
  font-weight: 800;
}

.sl-companion-callout span {
  color: var(--companion-muted);
  font-size: 12px;
}

.sl-companion-callout button {
  margin-top: 9px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--companion-violet);
  font: 750 12px/1.4 inherit;
  cursor: pointer;
}

.sl-companion-collapse {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: #f3f1ff;
  color: #544f69;
  cursor: pointer;
}

.sl-companion-collapse svg,
.sl-companion-panel svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.sl-companion-orb {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 62px;
  height: 62px;
  display: grid;
  place-items: center;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(110, 64, 255, .2);
  border-radius: 20px;
  background: #f0f4ff;
  box-shadow: 0 18px 46px rgba(29, 31, 78, .2);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(14px) scale(.82);
  transition: opacity 180ms ease, transform 240ms cubic-bezier(.22, 1, .36, 1);
}

.sl-companion-orb img {
  width: 88px;
  height: 88px;
  object-fit: contain;
  transform: translate(3px, 7px);
}

.sl-companion-orb::after {
  position: absolute;
  top: 7px;
  right: 7px;
  width: 8px;
  height: 8px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: #36d89a;
  content: "";
}

.sl-companion-root[data-collapsed="true"] .sl-companion-orb,
.sl-companion-root[data-panel-open="true"] .sl-companion-orb {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.sl-companion-root[data-panel-open="true"] .sl-companion-orb {
  opacity: 0;
  pointer-events: none;
}

.sl-companion-panel {
  position: absolute;
  right: 0;
  bottom: 0;
  width: min(410px, calc(100vw - 32px));
  height: min(650px, calc(100dvh - 36px));
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  overflow: hidden;
  border: 1px solid rgba(110, 64, 255, .18);
  border-radius: 24px;
  background: var(--companion-surface);
  box-shadow: 0 32px 90px rgba(30, 31, 76, .24);
  opacity: 0;
  pointer-events: none;
  transform: translateY(18px) scale(.97);
  transform-origin: right bottom;
  transition: opacity 180ms ease, transform 260ms cubic-bezier(.22, 1, .36, 1);
}

.sl-companion-root[data-panel-open="true"] .sl-companion-panel {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.sl-companion-panel-head {
  height: auto;
  min-height: 84px;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) auto;
  grid-template-rows: auto;
  align-items: center;
  gap: 12px;
  padding: 14px 14px 12px 16px;
  background: var(--companion-navy);
  color: #fff;
}

.sl-companion-head-avatar {
  width: 54px;
  height: 54px;
  overflow: hidden;
  border-radius: 16px;
  background: #eaf0ff;
}

.sl-companion-head-avatar img {
  width: 76px;
  height: 76px;
  object-fit: contain;
  transform: translate(-7px, 3px);
}

.sl-companion-identity strong,
.sl-companion-identity span {
  display: block;
}

.sl-companion-identity strong {
  font-size: 16px;
  font-weight: 800;
}

.sl-companion-identity span {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 3px;
  color: #cddcff;
  font-size: 11px;
}

.sl-companion-head-actions {
  display: flex;
  gap: 6px;
}

.sl-companion-root[data-collapsed="false"] [data-companion-expand] {
  display: none;
}

.sl-companion-icon-btn {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 11px;
  background: rgba(255, 255, 255, .08);
  color: #fff;
  cursor: pointer;
}

.sl-companion-contextbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 50px;
  padding: 9px 16px;
  border-bottom: 1px solid var(--companion-line);
  background: #f7f7ff;
}

.sl-companion-contextbar span {
  min-width: 0;
  overflow: hidden;
  color: #555268;
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sl-companion-contextbar a {
  flex: 0 0 auto;
  color: var(--companion-violet);
  font-size: 11px;
  font-weight: 750;
  text-decoration: none;
}

.sl-companion-messages {
  display: flex;
  flex-direction: column;
  gap: 13px;
  min-height: 0;
  padding: 18px 16px;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: #fff;
}

.sl-companion-message {
  max-width: 88%;
  padding: 11px 13px;
  border-radius: 15px;
  color: #34313f;
  font-size: 13px;
  line-height: 1.65;
  white-space: pre-wrap;
}

.sl-companion-message[data-role="assistant"] {
  align-self: flex-start;
  border: 1px solid var(--companion-line);
  border-radius: 15px 15px 15px 5px;
  background: #f8f8fc;
}

.sl-companion-message[data-role="user"] {
  align-self: flex-end;
  border-radius: 15px 15px 5px 15px;
  background: var(--companion-violet);
  color: #fff;
}

.sl-companion-message.is-loading {
  color: var(--companion-muted);
}

.sl-companion-message-meta {
  display: block;
  margin-top: 7px;
  color: #777489;
  font-size: 10px;
}

.sl-companion-suggestions {
  display: flex;
  gap: 7px;
  padding: 0 16px 12px;
  overflow-x: auto;
  scrollbar-width: none;
}

.sl-companion-suggestions::-webkit-scrollbar { display: none; }

.sl-companion-suggestions button {
  min-height: 34px;
  flex: 0 0 auto;
  padding: 0 11px;
  border: 1px solid #dddaf0;
  border-radius: 10px;
  background: #fff;
  color: #4d4960;
  font: 700 11px/1 inherit;
  cursor: pointer;
}

.sl-companion-composer {
  padding: 12px 14px max(14px, env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--companion-line);
  background: #fff;
}

.sl-companion-inputrow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 44px;
  gap: 9px;
  align-items: end;
}

.sl-companion-composer textarea {
  width: 100%;
  min-height: 46px;
  max-height: 120px;
  resize: none;
  padding: 12px 13px;
  border: 1px solid #dcd9eb;
  border-radius: 14px;
  background: #fbfbfe;
  color: var(--companion-ink);
  font: 500 14px/1.5 inherit;
}

.sl-companion-send {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 14px;
  background: var(--companion-violet);
  color: #fff;
  cursor: pointer;
}

.sl-companion-send:disabled {
  background: #c7c3da;
  cursor: wait;
}

.sl-companion-footnote {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 8px;
  color: #7a7789;
  font-size: 10px;
}

.sl-companion-footnote a {
  color: var(--companion-violet);
  font-weight: 700;
  text-decoration: none;
}

@keyframes sl-companion-float {
  0%, 100% { transform: translateY(0) rotate(0); }
  50% { transform: translateY(-6px) rotate(.6deg); }
}

@media (max-width: 680px) {
  .sl-companion-root {
    right: 12px;
    bottom: calc(76px + env(safe-area-inset-bottom, 0px));
  }
  .sl-companion-dock {
    width: 76px;
    min-height: 78px;
    display: block;
  }
  .sl-companion-character {
    width: 76px;
    height: 76px;
  }
  .sl-companion-presence { left: -1px; bottom: -2px; min-height: 23px; padding: 0 7px; font-size: 10px; }
  .sl-companion-callout { display: none; }
  .sl-companion-collapse { top: 5px; right: 5px; width: 27px; height: 27px; }
  .sl-companion-panel {
    position: fixed;
    right: 8px;
    bottom: calc(70px + env(safe-area-inset-bottom, 0px));
    width: calc(100vw - 16px);
    height: min(660px, calc(100dvh - 86px - env(safe-area-inset-bottom, 0px)));
    border-radius: 20px;
  }
}

.sl-companion-root[data-surface="player"] .sl-companion-dock { display: none; }
.sl-companion-root[data-surface="player"] .sl-companion-orb { opacity: 1; pointer-events: auto; transform: none; }

:fullscreen .sl-companion-root,
.game-stage:fullscreen ~ .sl-companion-root { display: none !important; }

@media (prefers-reduced-motion: reduce) {
  .sl-companion-character img { animation: none; }
  .sl-companion-dock,
  .sl-companion-orb,
  .sl-companion-panel,
  .sl-companion-root { transition: none; }
}