/* Retained feature components: requested effort capsule, message actions, streaming states. */
.thinking-controls { display:flex;flex-direction:column;max-height:calc(min(560px, 100dvh - 160px) - 14px);min-width:0;padding:0 4px 2px;--effort-color:#0873d6; }
.thinking-controls > * { flex-shrink:0; }
.thinking-controls > .effort-model-list { flex-shrink:1;min-height:0;overflow:auto;overscroll-behavior:contain; }
.thinking-controls[data-step="4"] { --effort-color: #9333ea; }
.effort-header { display: grid; grid-template-columns: 32px minmax(0, 1fr) 32px; align-items: center; margin-bottom: 4px; }
.effort-heading { grid-column: 2; display: flex; flex-direction: column; align-items: center; gap: 0; min-width: 0; }
.thinking-current { color: var(--effort-color); font-size: 15px; font-weight: 600; line-height: 18px; transition: color .18s ease; }
.effort-action { position: relative; width: 32px; height: 32px; display: grid; place-items: center; border: 0; border-radius: 12px; background: transparent; color: #89898d; cursor: pointer; }
.effort-action::after { content: ""; position: absolute; inset: -6px; }
.effort-action .icon { width: 16px; height: 16px; }
.effort-action:hover { background: #f3f3f5; color: #55555a; }
.effort-brain { grid-column: 1; transition: color 160ms ease, background 160ms ease, transform 160ms ease; }
.effort-brain .icon { width: 20px; height: 20px; }
.effort-brain[aria-pressed="true"] { color: var(--effort-color, #8751df); background: color-mix(in srgb, var(--effort-color, #8751df) 10%, transparent); }
.effort-brain:hover { transform: scale(1.06); }
@media (prefers-reduced-motion: reduce) { .effort-brain { transition: none; } .effort-brain:hover { transform: none; } }
.effort-action:active { background: #e8e8ec; }
.effort-action:focus-visible, .effort-model-switch:focus-visible { outline: 2px solid var(--effort-color); outline-offset: 1px; }
.effort-model-switch { position: relative; display: flex; align-items: center; justify-content: center; gap: 2px; padding: 0 4px; min-height: 14px; line-height: 14px; border: 0; border-radius: 5px; color: #737377; background: transparent; font: inherit; font-size: 12px; line-height: 14px; cursor: pointer; }
.effort-model-switch::after { content: ""; position: absolute; inset: -24px -4px -6px; }
.effort-model-switch .icon { width: 12px; height: 12px; transform: rotate(-90deg); }
.effort-model-switch[aria-expanded="true"] .icon { transform: none; }
.effort-model-list { padding: 4px 0; margin-bottom: 12px; border-block: 1px solid var(--line-soft); }
.effort-model-list[hidden] { display: none; }
.effort-capsule { position: relative; height: 44px; --effort-fill-width: 14px; }
.effort-track { position: absolute; inset: 11px 0; border-radius: 999px; overflow: hidden; background: #e7e7e9; box-shadow: inset 0 0 0 1px rgba(0,0,0,.05); }
.effort-fill { position: relative; overflow: hidden; height: 100%; width: var(--effort-fill-width); border-radius: 999px 0 0 999px; background: #0873d6; transition: width .24s cubic-bezier(.22,1,.36,1); }
.effort-fill::before { content: ""; position: absolute; inset: 0; background: linear-gradient(105deg, #485dff 0%, #a645ff 56%, #9148ff 100%); opacity: 0; transition: opacity .22s ease; }
.effort-capsule[data-step="4"] .effort-fill { border-radius: 999px; }
.effort-capsule[data-step="4"] .effort-fill::before { opacity: 1; }
.effort-stars { width: 100%; height: 100%; opacity: 0; background: radial-gradient(circle at 8% 63%,#fff9 1px,transparent 2px),radial-gradient(circle at 13% 32%,#fffc 1px,transparent 2px),radial-gradient(circle at 17% 72%,#fff8 1px,transparent 2px),radial-gradient(circle at 29% 62%,#fff9 1px,transparent 2px),radial-gradient(circle at 36% 23%,#fff6 1px,transparent 2px),radial-gradient(circle at 42% 69%,#fffa 1px,transparent 2px),radial-gradient(circle at 49% 36%,#fff8 1px,transparent 2px),radial-gradient(circle at 55% 57%,#fffd 1px,transparent 2px),radial-gradient(circle at 63% 25%,#fff8 1px,transparent 2px),radial-gradient(circle at 66% 76%,#fff6 1px,transparent 2px),radial-gradient(circle at 73% 46%,#fffc 1px,transparent 2px),radial-gradient(circle at 82% 66%,#fff9 1px,transparent 2px),radial-gradient(circle at 87% 26%,#fff8 1px,transparent 2px); transition: opacity .18s ease; }
.effort-capsule[data-step="4"] .effort-stars { opacity: 1; }
.effort-stars { position: relative; z-index: 1; }
.effort-ticks { position: absolute; inset: 0 14px; display: flex; align-items: center; justify-content: space-between; pointer-events: none; transition: opacity .18s ease; }
.effort-ticks i { width: 3px; height: 3px; border-radius: 50%; background: #b6b6ba; }
.effort-ticks i.is-filled { background: #fff6; }
.effort-capsule[data-step="4"] .effort-ticks { opacity: 0; }
.effort-range { position: relative; z-index: 2; display: block; width: 100%; height: 44px; margin: 0; padding: 0; appearance: none; background: transparent; cursor: pointer; touch-action: pan-y; }
.effort-range::-webkit-slider-runnable-track { height: 22px; border: 0; border-radius: 999px; background: transparent; }
.effort-range::-webkit-slider-thumb { appearance: none; width: 28px; height: 28px; margin-top: -3px; border: 0; border-radius: 50%; background: transparent; }
.effort-range::-moz-range-track { height: 22px; border: 0; background: transparent; }
.effort-range::-moz-range-thumb { width: 28px; height: 28px; border: 0; border-radius: 50%; background: transparent; }
.effort-thumb { position: absolute; z-index: 1; pointer-events: none; width: 28px; height: 28px; margin-left: -14px; top: 8px; border: 1px solid #e0e0e3; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px #0002; transform: scale(1); transition: transform .2s cubic-bezier(.2,.85,.2,1), left .24s cubic-bezier(.22,1,.36,1), box-shadow .2s ease; }
.effort-thumb.is-hovered { transform: scale(1.2); box-shadow: 0 2px 7px #0002; }
.effort-capsule.is-dragging .effort-thumb { transition: transform .2s cubic-bezier(.2,.85,.2,1), box-shadow .2s ease; }
.effort-capsule.is-dragging .effort-fill { transition: none; }
.effort-range:focus-visible { outline: 2px solid var(--effort-color); outline-offset: 3px; border-radius: 999px; }
.thinking-toggle { clear: both; display: flex; align-items: center; justify-content: space-between; min-height: 44px; gap: 12px; cursor: pointer; font-size: 13px; }
.thinking-toggle__track { flex: none; position: relative; width: 38px; height: 22px; border-radius: 999px; background: var(--surface-3); }
.thinking-toggle__track::after { content: ""; position: absolute; width: 16px; height: 16px; top: 3px; left: 3px; border-radius: 50%; background: var(--surface); box-shadow: var(--shadow-1); transition: transform .15s ease; }
.thinking-toggle input:checked + .thinking-toggle__track { background: var(--accent); }
.thinking-toggle input:checked + .thinking-toggle__track::after { transform: translateX(16px); }
.thinking-toggle input:focus-visible + .thinking-toggle__track { outline: 2px solid var(--accent); outline-offset: 3px; }
.thinking-note { margin: 10px 0 0; color: var(--ink-2); font-size: 12px; line-height: 1.6; }
@media (max-width: 1080px) { .pick--model .pick__btn { height: 60px; } }


.user-message-shell { position: relative; width: fit-content; max-width: 88%; margin-left: auto; }
.message-trigger { position: absolute; right: -12px; bottom: -14px; width: 28px; height: 28px; display: grid; place-items: center; padding: 4px; border: 0; border-radius: 50%; background: var(--surface); color: var(--ink-3); box-shadow: var(--shadow-1); cursor: pointer; opacity: 0; transition: opacity 140ms ease; }
.message-trigger::before { content: ""; position: absolute; inset: -8px; }
.message-trigger .icon { width: 18px; height: 18px; }
.user-message-shell:hover .message-trigger, .user-message-shell:focus-within .message-trigger, .message-trigger[aria-expanded="true"] { opacity: 1; }
.message-trigger:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.message-menu { position: fixed; z-index: 110; width: 156px; padding: 6px; border-radius: 16px; background: var(--surface); box-shadow: 0 8px 32px #23211e24, 0 0 0 1px #23211e0c; }
.message-menu__item { display: flex; align-items: center; gap: 10px; width: 100%; min-height: 42px; padding: 8px 12px; border: 0; border-radius: 10px; background: transparent; color: var(--ink-2); font: inherit; font-size: 14px; text-align: left; cursor: pointer; }
.message-menu__item .icon { width: 17px; height: 17px; flex: none; }
.message-menu__item:hover, .message-menu__item:focus-visible { background: var(--surface-2); outline: none; }
.message-menu__item.is-danger { color: #b34d3d; }
.message-menu__item:disabled { opacity: .4; cursor: default; }
.user-message-shell.is-editing { width: min(100%, 520px); max-width: 100%; }
.user-message-shell.is-editing > .msg__bubbles, .user-message-shell.is-editing > .message-trigger { display: none; }
.user-message-editor { padding: 12px; border-radius: var(--r-lg); background: var(--bubble-me); }
.user-message-editor textarea { display: block; width: 100%; min-height: 100px; max-height: 260px; padding: 4px; resize: vertical; border: 0; outline: none; background: transparent; color: var(--bubble-me-ink); font: inherit; line-height: 1.7; }
.user-message-editor textarea:focus-visible { outline: 1px solid var(--accent); border-radius: 4px; }
.user-message-editor__hint, .user-message-editor__error { margin: 6px 0; font-size: 12px; color: var(--ink-3); }
.user-message-editor__error { color: #b34d3d; }
.user-message-editor__controls { display: flex; justify-content: flex-end; gap: 8px; }
.user-message-editor__controls button { min-height: 40px; padding: 6px 16px; border: 0; border-radius: 20px; background: var(--surface); color: var(--ink-2); cursor: pointer; font: inherit; }
.user-message-editor__controls .is-primary { background: var(--accent); color: white; }
.user-message-editor__controls button:focus-visible { outline: 2px solid var(--ink-2); outline-offset: 2px; }
.user-message-editor__controls button:disabled { opacity: .5; cursor: wait; }
.message-feedback { position: fixed; z-index: 120; left: 50%; bottom: 110px; transform: translateX(-50%); width: max-content; max-width: calc(100vw - 32px); padding: 9px 16px; border-radius: 20px; color: var(--ink); background: var(--surface); box-shadow: var(--shadow-1); font-size: 13px; }
.clipboard-fallback { position: fixed; left: -9999px; width: 1px; height: 1px; opacity: 0; }
@media (pointer: coarse) {
  .user-message-shell .msg__bubbles { touch-action: pan-y; -webkit-touch-callout: none; user-select: none; }
  .message-menu__item { min-height: 44px; }
}
.msg--her .msg__bubbles > .bubble:empty { display: none; }
.msg__activity { margin-top: 8px; color: var(--ink-3); font-size: 12px; }
.msg__reasoning { max-width: 100%; margin: 0 0 10px; color: var(--ink-3); font-size: 13px; }
.msg__reasoning[hidden] { display: none; }
.msg__reasoning summary { display: flex; align-items: center; gap: 6px; width: fit-content; min-height: 32px; cursor: pointer; list-style: none; }
.msg__reasoning summary::-webkit-details-marker { display: none; }
.msg__reasoning summary .icon { width: 14px; height: 14px; transform: rotate(-90deg); }
.msg__reasoning[open] summary .icon { transform: none; }
.msg__reasoning summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
.msg__reasoning-text { white-space: pre-wrap; overflow-wrap: anywhere; max-height: 190px; overflow-y: auto; overscroll-behavior: contain; padding: 2px 12px 4px; border-left: 2px solid var(--surface-3); line-height: 1.7; }

.msg__meta {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 5px;
  font-size: 11.5px;
  color: var(--ink-3);
}
.msg--me .msg__meta { flex-direction: row-reverse; }
.msg__name { font-weight: 600; color: var(--ink-2); }

.bubble {
  padding: 11px 15px;
  border-radius: var(--r-lg);
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow-1);
  font-size: 15px;
  line-height: 1.72;
  text-wrap: pretty;
  overflow-wrap: anywhere;
}
.msg--her .bubble { border-bottom-left-radius: 6px; }
.msg--me .bubble {
  background: var(--bubble-me);
  color: var(--bubble-me-ink);
  box-shadow: none;
  border-bottom-right-radius: 6px;
}
.bubble--error { background: #f7ece9; color: #8a4632; }

.trace {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 6px;
  font-size: 11.5px;
  color: var(--ink-3);
}
.msg--me .trace { justify-content: flex-end; }
.trace .icon { width: 13px; height: 13px; }

/* 正在输入 */
.typing { display: inline-flex; align-items: center; gap: 4px; padding: 14px 16px; }
.typing i {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ink-3);
  opacity: .3;
  animation: blink 1.3s infinite;
}
.typing i:nth-child(2) { animation-delay: .16s; }
.typing i:nth-child(3) { animation-delay: .32s; }
@keyframes blink {
  0%, 60%, 100% { opacity: .28; transform: translateY(0); }
  30% { opacity: .9; transform: translateY(-2px); }
}

/* 提示条 */
.notice {
  align-self: center;
  max-width: 560px;
  padding: 8px 15px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--ink-2);
  font-size: 12.5px;
  text-align: center;
  text-wrap: pretty;
}

/* 跳至最新 */
.jump {
  position: absolute;
  left: 50%;
  bottom: 100px;
  transform: translateX(-50%);
  z-index: 5;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: none;
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-2);
  font: inherit;
  font-size: 12.5px;
  cursor: pointer;
  box-shadow: var(--shadow-2);
  transition: color .15s ease;
}
.jump:hover { color: var(--ink); }
.jump:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
/* hidden 属性要压过上面的 display，否则该藏的按钮会一直露着 */
.jump[hidden] { display: none; }