:root {
    --primary-color: #746097;
    --light-bg: #FDFBFD;
    --panel-bg-rgb: 255, 255, 255;
    --panel-opacity: 0.95;
    --panel-blur: 5px;
    --text-main: #333333;
    --text-sub: #888888;
    --border-color: #eee;
    --shadow: 0 2px 8px rgba(0,0,0,0.05);
    --radius-ui: 12px;
    --base-size: 16px;
    --msg-size: 16px;
    --bg-overlay-opacity: 0.5;
    --user-bubble-bg: none;
    --agent-bubble-bg: none;
}

[data-theme="dark"] {
    --light-bg: #1a1a1a;
    --panel-bg-rgb: 45, 45, 45;
    --text-main: #e0e0e0;
    --text-sub: #a0a0a0;
    --border-color: #444;
    --shadow: 0 2px 8px rgba(0,0,0,0.3);
    --glass-bg: rgba(45,45,45,0.92);
}
[data-theme="light"] { --glass-bg: rgba(255,255,255,0.92); }

[data-theme="light"] body,
[data-theme="light"] #chat-box,
[data-theme="light"] .message { color: #1a1a1a; }

[data-theme="light"] .message:not(.user):not(.system) .bubble {
    background: rgba(255,255,255,0.72);
    color: #1a1a1a;
    backdrop-filter: blur(var(--panel-blur));
    -webkit-backdrop-filter: blur(var(--panel-blur));
}
[data-theme="light"] .message.user .bubble { color: #ffffff; background-color: var(--primary-color); }

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

body {
    margin: 0; padding: 0;
    background-color: var(--light-bg);
    color: var(--text-main);
    font-size: var(--base-size);
    height: 100dvh;
    display: flex;
    overflow: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
    background-size: cover;
    background-position: center;
    font-family: sans-serif;
}

body::before {
    content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(30,30,30,0.55);
    opacity: var(--bg-overlay-opacity);
    z-index: -1; pointer-events: none;
    transition: opacity 0.2s, background-color 0.3s ease;
}

.sidebar, .header, .settings-modal {
    background: rgba(var(--panel-bg-rgb), var(--panel-opacity));
    backdrop-filter: blur(var(--panel-blur));
    -webkit-backdrop-filter: blur(var(--panel-blur));
    transition: background-color 0.3s ease;
}

/* 侧边栏 */
.sidebar {
    width: 85%; max-width: 300px;
    border-right: 1px solid var(--border-color);
    display: flex; flex-direction: column;
    position: absolute; left: -100%; top: 0; bottom: 0;
    z-index: 1000;
    transition: left 0.3s cubic-bezier(0.4,0,0.2,1), background-color 0.3s ease;
    box-shadow: 2px 0 15px rgba(0,0,0,0.1);
}
.sidebar.open { left: 0; }
.sidebar-top { flex: 1; overflow-y: auto; padding: 20px; }
.sidebar-header { font-size: 1.2em; font-weight: bold; color: var(--primary-color); margin-bottom: 15px; }
.sidebar-bottom {
    padding: 15px; border-top: 1px solid var(--border-color);
    background: rgba(var(--panel-bg-rgb), calc(var(--panel-opacity) - 0.1));
    display: flex; align-items: center; gap: 10px;
    transition: background-color 0.3s ease;
}
.user-avatar-area {
    width: 45px; height: 45px; border-radius: 50%; overflow: hidden;
    border: 2px solid var(--border-color); cursor: pointer; flex-shrink: 0;
}
.user-avatar-area img { width: 100%; height: 100%; object-fit: cover; }
.user-name-input { flex: 1; background: transparent; border: none; font-weight: bold; font-size: 1em; color: var(--text-main); padding: 5px; }
.user-name-input:focus { border-bottom: 1px solid var(--primary-color); outline: none; }
.settings-trigger { font-size: 1.2em; cursor: pointer; background: none; border: none; padding: 5px; transition: transform 0.3s; color: var(--text-main); }
.settings-trigger:hover { transform: rotate(90deg); }

/* 设置弹窗 */
.settings-modal { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 1100; display: none; flex-direction: column; }
.settings-modal.active { display: flex; }
.settings-header { padding: 15px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; font-weight: bold; }
.settings-content { flex: 1; overflow-y: auto; padding: 15px; }

.settings-nav { display: block; }
.nav-item { display: flex; justify-content: space-between; align-items: center; padding: 13px 16px; border-radius: 10px; cursor: pointer; font-size: 0.95em; transition: background 0.15s; margin-bottom: 3px; }
.nav-item:hover { background: rgba(255,255,255,0.08); }
.nav-item span { opacity: 0.4; font-size: 1.1em; }
.settings-page { display: none; }
.page-back-btn { display: flex; align-items: center; gap: 4px; background: none; border: none; color: var(--primary-color); cursor: pointer; font-size: 0.95em; padding: 0; margin-bottom: 12px; opacity: 0.8; }
.page-back-btn:hover { opacity: 1; }
.page-title { font-size: 1.05em; font-weight: 600; margin-bottom: 14px; opacity: 0.9; }

/* 表单 */
.session-item { padding: 12px; margin-bottom: 8px; background: rgba(var(--panel-bg-rgb), 0.5); border-radius: var(--radius-ui); display: flex; justify-content: space-between; align-items: center; border: 1px solid transparent; }
.session-item.active { border-color: var(--primary-color); background: rgba(116,96,151,0.1); color: var(--primary-color); font-weight: bold; }
.session-actions span { margin-left: 8px; cursor: pointer; opacity: 0.6; }
.msg-count { font-size: 0.7em; opacity: 0.5; margin-right: 5px; background: rgba(0,0,0,0.05); padding: 2px 6px; border-radius: 10px; }
.form-row { margin-bottom: 12px; }
.form-label { display: block; margin-bottom: 5px; font-size: 0.9em; opacity: 0.8; }
input, select, textarea { width: 100%; padding: 10px; border-radius: var(--radius-ui); border: 1px solid var(--border-color); background: rgba(var(--panel-bg-rgb), 0.6); color: var(--text-main); font-family: inherit; outline: none; }
.font-upload-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; font-size: 0.9em; padding: 5px 0; border-bottom: 1px dashed var(--border-color); }
.status-text { font-size: 0.8em; opacity: 0.6; max-width: 100px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.btn-small { padding: 4px 8px; background: var(--border-color); border-radius: 4px; cursor: pointer; font-size: 0.8em; }

/* 助手网格 */
.agent-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.agent-card { background: rgba(255,255,255,0.1); border: 1px solid var(--border-color); border-radius: 10px; padding: 10px; display: flex; flex-direction: column; align-items: center; text-align: center; cursor: pointer; transition: transform 0.1s; user-select: none; }
.agent-card:active { transform: scale(0.96); background: rgba(0,0,0,0.05); }
.agent-card .avatar { width: 40px; height: 40px; margin-bottom: 5px; }
.agent-card b { font-size: 0.9em; display: block; width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.agent-card span { font-size: 0.7em; opacity: 0.6; display: block; width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 记忆 */
.memory-item { padding: 8px; border-bottom: 1px solid var(--border-color); display: flex; gap: 8px; align-items: flex-start; cursor: default; border-radius: 6px; transition: background 0.15s; }
.memory-item:active { background: rgba(0,0,0,0.04); }
.memory-index { font-size: 0.8em; opacity: 0.5; margin-top: 3px; width: 15px; }
.memory-content { flex: 1; font-size: 0.9em; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; cursor: pointer; }
.memory-content.expanded { -webkit-line-clamp: unset; }
.memory-lock { color: var(--primary-color); font-weight: bold; font-size: 0.8em; }

/* 色盘 */
.color-grid { display: grid; grid-template-columns: repeat(6,1fr); gap: 8px; }
.color-dot { width: 100%; aspect-ratio: 1; border-radius: 50%; cursor: pointer; border: 2px solid transparent; }
.color-dot:hover { transform: scale(1.1); border-color: var(--text-main); }
.color-add-btn { width: 30px; height: 30px; border-radius: 50%; border: 1px dashed var(--text-sub); display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--text-sub); }

/* Overlay */
.overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.3); z-index: 999; display: none; backdrop-filter: blur(2px); }
.overlay.show { display: block; }

/* 主内容 */
.main-content { flex: 1; display: flex; flex-direction: column; width: 100%; position: relative; }

.header { height: 55px; padding: 0 15px; display: flex; align-items: center; justify-content: space-between; z-index: 10; position: absolute; top: 0; left: 0; right: 0; background: transparent !important; backdrop-filter: none !important; -webkit-backdrop-filter: none !important; box-shadow: none !important; }
.header-title { font-weight: bold; color: var(--primary-color); font-size: 1.1em; cursor: pointer; }
.btn-tiny-header { font-size: 1.2em !important; padding: 0 8px !important; width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: 8px; }

#chat-box { flex: 1; overflow-y: auto; padding: 65px 15px 120px; scroll-behavior: auto; }

/* 消息 */
.message { margin-bottom: 20px; display: flex; gap: 10px; position: relative; }
.message.user { flex-direction: row-reverse; }
.message.system { justify-content: center; opacity: 0.8; font-size: 0.85em; }
.message.system .bubble { background: rgba(0,0,0,0.05); box-shadow: none; padding: 4px 8px; border-radius: 6px; display: flex; align-items: center; gap: 8px; backdrop-filter: none; font-size: 12px; opacity: 0.9; }
.system-del-btn { cursor: pointer; color: #ff4d4f; font-weight: bold; opacity: 0.6; }
.system-del-btn:hover { opacity: 1; }

.avatar-wrapper { position: relative; width: 38px; height: 38px; flex-shrink: 0; }
.avatar-frame { position: absolute; top: -5px; left: -5px; width: calc(100% + 10px); height: calc(100% + 10px); pointer-events: none; object-fit: contain; z-index: 2; }
.avatar { width: 38px; height: 38px; border-radius: 50%; background: #eee; display: flex; align-items: center; justify-content: center; flex-shrink: 0; overflow: hidden; border: 1px solid var(--border-color); }
.avatar img { width: 100%; height: 100%; object-fit: cover; }

.bubble-container { max-width: 80%; display: flex; flex-direction: column; }
.message:not(.user):not(.system) .bubble-container { max-width: 92%; }
.message:not(.user):not(.system) .bubble { max-width: 100%; }
.message.user .bubble-container { align-items: flex-end; }

.bubble {
    padding: 10px 14px; border-radius: var(--radius-ui);
    color: var(--text-main); box-shadow: var(--shadow); position: relative;
    word-wrap: break-word; border-top-left-radius: 4px;
    user-select: text;
    background-color: rgba(var(--panel-bg-rgb), 0.9);
    backdrop-filter: none; -webkit-backdrop-filter: none;
    transition: background-color 0.3s ease;
    font-size: var(--msg-size);
    background-image: var(--agent-bubble-bg, none);
    background-size: cover; background-position: center; background-repeat: no-repeat;
}
.message:not(.user):not(.system) .bubble { font-family: "FontAgent","Garamond","Songti SC",serif; line-height: 1.5; }
.message.user .bubble {
    background-color: var(--primary-color); color: white;
    border-top-left-radius: var(--radius-ui); border-top-right-radius: 4px;
    font-family: "FontUser","Microsoft YaHei Light",sans-serif; font-weight: 300;
    background-image: var(--user-bubble-bg, none);
    background-blend-mode: multiply;
}

details.cot { background: rgba(0,0,0,0.05); padding: 8px; border-radius: 8px; margin-bottom: 5px; font-size: 0.9em; font-family: "FontCoT",sans-serif; border: 1px solid rgba(0,0,0,0.1); }
details.cot[open] { background: rgba(0,0,0,0.08); }
details.cot summary { cursor: pointer; opacity: 0.7; font-weight: bold; user-select: none; list-style: none; outline: none; }
details.cot summary::-webkit-details-marker { display: none; }

.tool-action { display: inline-block; font-size: 0.78em; opacity: 0.55; margin: 2px 0; cursor: pointer; }
.tool-action summary { list-style: none; padding: 2px 7px; border-radius: 4px; background: rgba(255,255,255,0.06); display: inline-block; }
.tool-action summary::-webkit-details-marker { display: none; }
.tool-action[open] summary { opacity: 0.7; }
.tool-action > *:not(summary) { padding: 4px 7px; font-size: 0.95em; opacity: 0.8; }
.msg-actions { display: none; }

/* ===== 输入区域（Fix 3：竖排布局）===== */
.input-area {
    position: absolute; bottom: 0; left: 0; width: 100%;
    z-index: 100;
    display: flex;
    flex-direction: column;          /* 竖排：预览区在上，输入行在下 */
    gap: 0;
    padding: 8px 10px 14px;
    background: linear-gradient(to top, rgba(var(--panel-bg-rgb), 0.82) 0%, rgba(var(--panel-bg-rgb), 0) 100%) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}

/* 文件预览行：在输入行上方 */
#pending-img-preview {
    display: none;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 6px;
    padding: 6px 8px;
    background: rgba(var(--panel-bg-rgb), 0.55);
    border-radius: 10px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

/* 输入行：图标 + textarea + 发送 */
.input-row {
    display: flex;
    gap: 8px;
    align-items: flex-end;
}

.input-area textarea {
    flex: 1;
    background: rgba(var(--panel-bg-rgb), 0.65) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(var(--text-main), 0.1);
    border-radius: 22px;
    resize: none;
    height: 45px; max-height: 150px;
    padding: 10px 16px;
    overflow-y: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}
.input-area textarea::placeholder { color: rgba(128,128,128,0.5); }

/* @提及 */
.mention-popup { position: absolute; bottom: 100%; left: 10px; right: 10px; background: rgba(var(--panel-bg-rgb), 0.95); backdrop-filter: blur(10px); border: 1px solid var(--border-color); border-radius: 12px; box-shadow: 0 -5px 20px rgba(0,0,0,0.1); margin-bottom: 10px; overflow: hidden; z-index: 2000; display: flex; flex-direction: column; }
.mention-item { padding: 12px; border-bottom: 1px solid var(--border-color); display: flex; align-items: center; gap: 10px; cursor: pointer; }
.mention-item:last-child { border-bottom: none; }
.mention-item:active { background: rgba(0,0,0,0.05); }
.mention-avatar { width: 30px; height: 30px; border-radius: 50%; background: #eee; object-fit: cover; }

.btn-img { width: 24px; height: 24px; border-radius: 50%; background: rgba(var(--panel-bg-rgb), 0.4); backdrop-filter: blur(4px); border: 1px solid rgba(var(--text-main), 0.1); color: var(--text-sub); font-size: 0.72em; cursor: pointer; display: flex; align-items: center; justify-content: center; letter-spacing: -0.5px; }
.btn-img:active { background: rgba(0,0,0,0.05); }
.btn-at { width: 24px; height: 24px; border-radius: 50%; background: rgba(var(--panel-bg-rgb), 0.4); backdrop-filter: blur(4px); border: 1px solid rgba(var(--text-main), 0.1); color: var(--text-sub); font-size: 1.1em; cursor: pointer; display: flex; align-items: center; justify-content: center; font-weight: bold; }
.btn-at:active { background: rgba(0,0,0,0.05); }
.send-btn { width: 40px; height: 40px; border-radius: 50%; background: var(--primary-color); border: none; flex-shrink: 0; box-shadow: 0 2px 5px rgba(0,0,0,0.2); cursor: pointer; margin-bottom: 2px; }
.send-btn:active { transform: scale(0.95); }

.btn { padding: 8px 12px; border-radius: var(--radius-ui); border: none; cursor: pointer; font-size: 0.9em; }
.btn-primary { background: var(--primary-color); color: white; }
.btn-danger { background: #ff4d4f; color: white; }
.btn-ghost { background: transparent; border: 1px solid var(--border-color); color: var(--text-main); }
.btn-block { width: 100%; margin-top: 5px; }
.btn-icon { background: none; border: none; font-size: 1.2em; cursor: pointer; color: var(--text-main); }

/* 桌宠 */
.shimeji-pet { position: absolute; bottom: 100%; right: 20px; width: 80px; height: 80px; pointer-events: none; z-index: 10; }
.shimeji-pet img { width: 100%; height: 100%; object-fit: contain; pointer-events: auto; transition: transform 0.2s; cursor: grab; }
.shimeji-pet img.jump { animation: pet-jump 0.5s ease; }
@keyframes pet-jump { 0% { transform: translateY(0); } 50% { transform: translateY(-20px) scale(1.1); } 100% { transform: translateY(0); } }

/* Header 按钮 */
.header .btn { background: rgba(var(--panel-bg-rgb), 0.25) !important; backdrop-filter: blur(12px) !important; -webkit-backdrop-filter: blur(12px) !important; border: 1px solid rgba(var(--text-main), 0.08) !important; border-radius: 18px !important; box-shadow: 0 4px 12px rgba(0,0,0,0.05); width: 42px; height: 42px; padding: 0 !important; display: flex; align-items: center; justify-content: center; transition: transform 0.2s, background 0.2s; }
.header .btn:active { transform: scale(0.92); background: rgba(var(--panel-bg-rgb), 0.4) !important; }

/* Notion */
.notion-db-item { display: flex; align-items: center; justify-content: space-between; padding: 7px 10px; background: rgba(255,255,255,0.06); border-radius: 8px; margin-bottom: 5px; }
.notion-db-info { display: flex; align-items: center; gap: 7px; overflow: hidden; }
.notion-db-name { font-size: 0.9em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.notion-db-perm { font-size: 0.72em; padding: 2px 6px; border-radius: 4px; flex-shrink: 0; }
.notion-db-perm.read { background: rgba(100,160,255,0.2); color: #64a0ff; }
.notion-db-perm.write { background: rgba(255,160,100,0.2); color: #ffa064; }
.notion-db-perm.both { background: rgba(160,255,100,0.2); color: #a0c864; }
.notion-db-actions { display: flex; gap: 5px; flex-shrink: 0; }
.notion-pulled-item { display: flex; align-items: flex-start; gap: 8px; padding: 6px 0; border-bottom: 1px solid rgba(var(--panel-bg-rgb),0.3); font-size: 0.85em; }
.notion-pulled-item:last-child { border-bottom: none; }
.notion-pulled-item.item-hidden { opacity: 0.4; }
.notion-pulled-content { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; cursor: pointer; }
.notion-pulled-content.expanded { white-space: normal; word-break: break-word; }
.notion-pulled-db { font-size: 0.8em; opacity: 0.5; margin-right: 4px; }

/* 通用小按钮 */
.btn-tiny { padding: 3px 8px; border-radius: 5px; border: 1px solid rgba(255,255,255,0.15); background: rgba(255,255,255,0.08); color: inherit; cursor: pointer; font-size: 0.85em; }
.btn-tiny:hover { background: rgba(255,255,255,0.15); }
.btn-tiny.danger { border-color: rgba(255,80,80,0.3); color: #ff8080; }
.btn-tiny.danger:hover { background: rgba(255,80,80,0.15); }

/* CSS片段 */
.css-snippet-item { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; background: rgba(255,255,255,0.06); border-radius: 8px; margin-bottom: 5px; user-select: none; }
.snippet-toggle { display: flex; align-items: center; gap: 8px; cursor: pointer; flex: 1; overflow: hidden; }
.snippet-toggle input[type="checkbox"] { flex-shrink: 0; width: 16px; height: 16px; accent-color: var(--primary-color); }
.snippet-name { font-size: 0.9em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* 流式光标 */
.stream-cursor { display: inline-block; width: 2px; height: 0.9em; background: currentColor; margin-left: 2px; vertical-align: text-bottom; border-radius: 1px; animation: blink-cursor 0.85s ease-in-out infinite; }@keyframes blink-cursor { 0%, 100% { opacity: 0.9; } 50% { opacity: 0; } }

/* 等待跳动点 */
.typing-dots { display: inline-flex; align-items: center; gap: 4px; padding: 2px 0; }
.typing-dots span { display: inline-block; width: 5px; height: 5px; border-radius: 50%; background: currentColor; opacity: 0.45; animation: typing-dot 1.1s ease-in-out infinite; }
.typing-dots span:nth-child(2) { animation-delay: 0.18s; }
.typing-dots span:nth-child(3) { animation-delay: 0.36s; }
@keyframes typing-dot { 0%, 80%, 100% { transform: translateY(0) scale(1); opacity: 0.45; } 40% { transform: translateY(-4px) scale(1.15); opacity: 0.9; } }

/* 日间模式字色 */
[data-theme="light"] .message:not(.user):not(.system) .bubble,
[data-theme="light"] .message:not(.user):not(.system) .bubble *:not(summary) { color: #2d2d2d; }
[data-theme="light"] details.cot summary,
[data-theme="light"] .tool-action summary { color: #555555; }
[data-theme="light"] .message.system .bubble { color: #666666; }

/* 咻动画 */
@keyframes whoosh-out {
    0%   { transform: translateX(28px) translateY(12px) scale(0.88); opacity: 0; }
    60%  { transform: translateX(-4px) translateY(-2px) scale(1.02); opacity: 1; }
    100% { transform: translateX(0) translateY(0) scale(1); opacity: 1; }
}
.msg-whoosh { animation: whoosh-out 0.28s cubic-bezier(0.22,1,0.36,1) both; }

/* 碎浪徽章 */
@keyframes suilang-breathe { 0%, 100% { opacity: 0.7; transform: scaleX(1); } 50% { opacity: 1; transform: scaleX(1.08); } }
#suilang-badge svg { animation: suilang-breathe 2s ease-in-out infinite; }

/* ===== 通用弹窗（Fix 5/6/7/8 共用）===== */
.msg-popup-overlay {
    display: none;
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.15s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.msg-popup-box {
    background: rgba(var(--panel-bg-rgb), 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px;
    padding: 20px;
    min-width: 260px;
    max-width: 88vw;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    animation: popIn 0.2s ease;
}
@keyframes popIn { from { transform: scale(0.9); opacity: 0; } to { transform: scale(1); opacity: 1; } }

.popup-title { text-align: center; font-weight: bold; margin-bottom: 15px; font-size: 1.1em; color: var(--primary-color); }

.popup-version-nav { display: flex; justify-content: center; align-items: center; gap: 15px; margin-bottom: 15px; padding: 8px; background: rgba(var(--panel-bg-rgb), 0.5); border-radius: 8px; }
.popup-version-nav button { background: var(--primary-color); color: white; border: none; width: 32px; height: 32px; border-radius: 50%; font-size: 0.9em; cursor: pointer; }
.popup-version-nav button:disabled { opacity: 0.3; cursor: not-allowed; }
.popup-version-nav span { font-size: 0.9em; opacity: 0.8; }

.popup-actions { display: flex; flex-direction: column; gap: 8px; }
.popup-actions button { padding: 12px 16px; border: none; border-radius: 10px; background: rgba(var(--panel-bg-rgb), 0.6); color: var(--text-main); font-size: 0.95em; cursor: pointer; transition: background 0.15s, transform 0.1s; text-align: left; }
.popup-actions button:active { transform: scale(0.98); }
.popup-actions button.danger { color: #e74c3c; }
.popup-close { width: 100%; margin-top: 12px; padding: 12px; border: 1px solid var(--border-color); border-radius: 10px; background: transparent; color: var(--text-sub); font-size: 0.95em; cursor: pointer; }

/* 消息版本指示器 */
.msg-version { font-size: 0.75em; opacity: 0.5; margin-left: 5px; margin-top: 4px; cursor: pointer; padding: 2px 6px; background: rgba(var(--panel-bg-rgb), 0.5); border-radius: 4px; display: inline-block; }
.msg-version:hover { opacity: 0.8; }

/* 系统消息折叠 */
.system-fold { font-size: 0.85em; opacity: 0.6; padding: 6px 12px; background: rgba(var(--panel-bg-rgb), 0.5); border-radius: 8px; margin: 4px auto; max-width: 90%; cursor: pointer; }
.system-fold summary { display: flex; align-items: center; gap: 8px; list-style: none; }
.system-fold summary::-webkit-details-marker { display: none; }
.system-fold summary::before { content: '▶'; font-size: 0.7em; transition: transform 0.2s; }
.system-fold[open] summary::before { transform: rotate(90deg); }
.system-fold .system-del-btn { margin-left: auto; color: #e74c3c; cursor: pointer; padding: 0 4px; }
.system-fold .system-full { margin-top: 8px; padding-top: 8px; border-top: 1px dashed var(--border-color); white-space: pre-wrap; word-break: break-word; }

/* Fix 6：引用栏 —— 默认隐藏，内部用 flex 布局 */
#reply-bar {
    display: none;          /* JS 控制显隐，初始隐藏 */
    padding: 8px 15px;
    background: rgba(var(--panel-bg-rgb), 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    font-size: 0.85em;
    border-top: 1px solid var(--border-color);
    position: absolute;
    bottom: 68px;           /* 悬在输入行上方 */
    left: 0; right: 0;
    z-index: 101;
}
#reply-bar > div { display: flex; justify-content: space-between; align-items: center; }

/* 代码块 */
.code-block-wrapper { margin: 8px 0; border: 1px solid rgba(0,0,0,0.12); border-radius: 8px; overflow: hidden; }
.code-block-header { background: rgba(0,0,0,0.04); padding: 6px 10px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; }
.code-block-header:active { background: rgba(0,0,0,0.08); }
.code-block-content { display: none; padding: 10px; background: rgba(0,0,0,0.02); max-height: 400px; overflow-y: auto; }
.code-block-content pre { margin: 0; font-family: monospace; font-size: 0.85em; white-space: pre-wrap; word-wrap: break-word; }

/* API 配置档案 */
.api-profile-chip {
    display: inline-flex; align-items: center; gap: 4px;
    background: rgba(var(--panel-bg-rgb), 0.5);
    border: 1px solid var(--border-color);
    border-radius: 16px; padding: 4px 10px;
    cursor: pointer; font-size: 0.82em;
    transition: border-color 0.15s, background 0.15s;
    user-select: none;
}
.api-profile-chip:active { background: rgba(var(--primary-color), 0.1); border-color: var(--primary-color); }

/* 深色模式下代码块背景 */
[data-theme="dark"] .code-block-header { background: rgba(255,255,255,0.05); }
[data-theme="dark"] .code-block-content { background: rgba(255,255,255,0.02); }
[data-theme="dark"] .code-block-wrapper { border-color: rgba(255,255,255,0.1); }
/* 贴纸专用：如果气泡里只有贴纸，去掉气泡背景 */
.bubble:has(.sticker-img:only-child) {
    background: transparent !important;
    box-shadow: none !important;
    padding: 0 !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}

/* 用户气泡折叠 */
.bubble-fold-btn {
    display: inline-block;
    color: var(--theme-color);
    font-size: 0.82em;
    opacity: 0.6;
    cursor: pointer;
    user-select: none;
    padding: 0 2px;
}
.bubble-fold-btn:hover { opacity: 1; }