/* 自定义妆面：仅在 .flora-ch-theme-custom 时生效，覆写画展基底 */

.flora-ch-room.flora-ch-theme-custom {
    --ch-rm-bg: #111111;
    --ch-rm-surface: #1a1a1a;
    --ch-rm-ink: #f0f0f0;
    --ch-rm-muted: #888888;
    --ch-rm-line: rgba(255, 255, 255, 0.1);
    --ch-rm-blush: #c0c0c0;
    --ch-rm-blush-deep: #a0a0a0;
    --ch-rm-sage: #2a2a2a;
    --ch-rm-cream: #1a1a1a;
    --ch-rm-gold: #d0d0d0;
    --ch-rm-frame: rgba(255, 255, 255, 0.12);
    /* 气泡间距 · 可在自定义 CSS 中覆写 */
    --ch-custom-scroll-pad-x: 14px;
    --ch-custom-scroll-pad-y: 10px;
    --ch-custom-bubble-gap: 10px;
    --ch-custom-bubble-max: min(88%, 300px);
    --ch-custom-media-max: min(92%, 680px);
    --ch-custom-bubble-row-gap: 8px;
    --ch-custom-bubble-stack-gap: 2px;
    --ch-custom-bubble-card-pad-y: 6px;
    --ch-custom-bubble-card-pad-x: 9px;
    background: var(--ch-rm-bg);
    color: var(--ch-rm-ink);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

.flora-ch-room.flora-ch-theme-custom::before,
.flora-ch-room.flora-ch-theme-custom::after {
    display: none;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-deco {
    display: none;
}

/* —— 顶栏 · 布局沙箱（grid 区域可自由覆写）—— */
.flora-ch-room.flora-ch-theme-custom .flora-ch-room-head {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-areas: "back stage actions";
    align-items: center;
    align-content: center;
    gap: 10px;
    padding: calc(8px + env(safe-area-inset-top, 0px)) 14px 10px;
    position: relative;
    z-index: 4;
    flex-shrink: 0;
    background: var(--ch-rm-surface);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom: 1px solid var(--ch-rm-line);
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-head::after {
    display: none;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-back {
    grid-area: back;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-head-stage {
    grid-area: stage;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 4px;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-head-actions {
    grid-area: actions;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.flora-ch-room.flora-ch-theme-custom.flora-ch-custom-layout-head-mid .flora-ch-room-head {
    grid-template-rows: auto auto;
    grid-template-areas:
        "back stage actions"
        "mid mid mid";
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-head-mid {
    grid-area: mid;
    display: none;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 0;
}

.flora-ch-room.flora-ch-theme-custom.flora-ch-custom-layout-head-mid .flora-ch-room-head-mid {
    display: flex;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-head-plaque,
.flora-ch-room.flora-ch-theme-custom .flora-ch-room-head-text,
.flora-ch-room.flora-ch-theme-custom .flora-ch-room-head-eyebrow {
    display: inline;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-head-duo {
    display: none;
}

.flora-ch-room.flora-ch-theme-custom.flora-ch-custom-layout-head-duo .flora-ch-room-head-duo {
    display: block;
    position: relative;
    width: 82px;
    height: 44px;
    margin: 0 auto;
    flex-shrink: 0;
}

.flora-ch-room.flora-ch-theme-custom.flora-ch-custom-layout-head-duo .flora-ch-room-head-frame {
    display: none;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-head-duo-ava {
    position: absolute;
    top: 3px;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--ch-rm-surface);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-head-duo-ava--them {
    left: 0;
    z-index: 2;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-head-duo-ava--me {
    right: 0;
    z-index: 3;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-bubble-card::before {
    display: none;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-bubble.is-me .flora-ch-room-bubble-inner,
.flora-ch-room.flora-ch-theme-custom .flora-ch-room-bubble.is-them .flora-ch-room-bubble-inner {
    background: transparent;
    color: var(--ch-rm-ink);
}

/* —— 消息区 · 气泡间距沙箱 —— */
.flora-ch-room.flora-ch-theme-custom .flora-ch-room-scroll {
    padding: var(--ch-custom-scroll-pad-y) var(--ch-custom-scroll-pad-x);
    display: flex;
    flex-direction: column;
    gap: 0;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-bubble {
    max-width: var(--ch-custom-bubble-max);
    margin-bottom: var(--ch-custom-bubble-gap);
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-bubble-row {
    gap: var(--ch-custom-bubble-row-gap);
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-bubble-stack {
    gap: var(--ch-custom-bubble-stack-gap);
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-bubble-card {
    border-color: var(--ch-rm-line);
    background: var(--ch-rm-surface);
    box-shadow: none;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-bubble-inner {
    padding: var(--ch-custom-bubble-card-pad-y) var(--ch-custom-bubble-card-pad-x);
}

/* —— 特殊消息 · 无外层 bubble-card，直接挂在 stack 内 —— */
.flora-ch-room.flora-ch-theme-custom .flora-ch-room-bubble.is-media-standalone {
    max-width: var(--ch-custom-media-max);
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-bubble.is-media-standalone .flora-ch-room-bubble-card {
    display: none !important;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-media-standalone {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-width: 100%;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-media-standalone.real-image {
    max-width: min(58vw, 280px);
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-media-standalone.sticker-msg {
    max-width: min(120px, 38vw);
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-media-standalone.voice-msg {
    max-width: min(240px, 78vw);
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-media-standalone.text-image,
.flora-ch-room.flora-ch-theme-custom .flora-ch-media-standalone.location-msg {
    max-width: min(680px, calc(100vw - 96px));
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-media-standalone.transfer-msg {
    max-width: min(300px, calc(100vw - 108px));
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-chat-image,
.flora-ch-room.flora-ch-theme-custom .flora-ch-chat-sticker {
    background: transparent;
    border-color: var(--ch-rm-line);
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-voice-exhibit,
.flora-ch-room.flora-ch-theme-custom .flora-ch-portrait-exhibit,
.flora-ch-room.flora-ch-theme-custom .flora-ch-loc-exhibit,
.flora-ch-room.flora-ch-theme-custom .flora-ch-ins-transfer {
    background: var(--ch-rm-surface);
    border-color: var(--ch-rm-line);
    color: var(--ch-rm-ink);
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-bubble-foot--media {
    padding: 0 2px;
}

/* —— 底栏 · 布局沙箱（flex + order 可自由覆写）—— */
.flora-ch-room.flora-ch-theme-custom .flora-ch-room-compose {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 8px 12px calc(10px + env(safe-area-inset-bottom, 0px));
    background: var(--ch-rm-surface);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-top: 1px solid var(--ch-rm-line);
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-compose-plinth {
    display: none;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-custom-compose-cap {
    display: none;
    align-items: center;
    gap: 8px;
    margin: 0 2px 2px;
    padding: 0 2px;
}

.flora-ch-room.flora-ch-theme-custom.flora-ch-custom-layout-compose-cap .flora-ch-room-custom-compose-cap {
    display: flex;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-custom-compose-cap-label {
    font-size: 9px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--ch-rm-muted);
    flex: 0 0 auto;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-custom-compose-cap-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--ch-rm-line), transparent);
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-compose-glass {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: flex-end;
    gap: 6px;
    padding: 8px 10px;
    border: 1px solid var(--ch-rm-line);
    background: var(--ch-rm-cream);
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-compose-glass > .flora-ch-room-tools,
.flora-ch-room.flora-ch-theme-custom .flora-ch-room-compose-glass > .flora-ch-room-input,
.flora-ch-room.flora-ch-theme-custom .flora-ch-room-compose-glass > .flora-ch-room-ai,
.flora-ch-room.flora-ch-theme-custom .flora-ch-room-compose-glass > .flora-ch-room-send {
    position: relative;
    flex: 0 0 auto;
    order: unset;
}

.flora-ch-room.flora-ch-theme-custom .flora-ch-room-compose-glass > .flora-ch-room-input {
    flex: 1 1 auto;
    min-width: 0;
}