/* ============================================
   CanMV Web IDE - 样式表
   作者: LCKFB-YZH
   ============================================ */

/* ====== CSS 变量 - 暗色主题（默认） ====== */
:root {
    --sidebar-width: 250px;
    --framebuf-width: 320px;
    --terminal-height: 200px;
    --status-bar-height: 24px;
    --toolbar-height: 38px;
    --tab-height: 34px;

    --bg0: #0d1117; --bg1: #161b22; --bg2: #21262d; --bg3: #30363d; --bg4: #484f58;
    --fg: #e6edf3; --fg2: #8b949e; --fg3: #6e7681;
    --accent: #2f81f7; --green: #3fb950; --red: #f85149; --yellow: #d29922;
    --orange: #f0883e; --border: #30363d;
    --term-bg: #010409;
    --selection: rgba(47,129,247,.3);
    --btn-fg: #c9d1d9; --btn-bg: #21262d; --btn-border: #363b42;
    --btn-hover-bg: #30363d; --btn-hover-border: #8b949e;
    --input-bg: #0d1117; --input-border: #30363d;
    --focus-border: #2f81f7;
    --sidebar-bg: #161b22; --sidebar-active: #2f81f7; --sidebar-hover: #21262d;
    --scrollbar-thumb: #484f58;
    --logo-filter: brightness(1.35) drop-shadow(0 0 2px rgba(255,255,255,0.15));
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
    --radius: 6px;
    --font-mono: "JetBrains Mono","Fira Code","Cascadia Code",Consolas,"Courier New",monospace;
    --transition: 0.15s ease;

    /* 语法高亮 - GitHub Dark */
    --hl-kw: #ff7b72; --hl-bi: #79c0ff; --hl-fn: #d2a8ff; --hl-str: #a5d6ff;
    --hl-num: #79c0ff; --hl-cmt: #8b949e; --hl-dec: #d2a8ff; --hl-cls: #ffa657;
    --hl-self: #79c0ff; --hl-op: #c9d1d9; --hl-const: #79c0ff; --hl-mp: #ffa657;
}

/* ====== 亮色主题 ====== */
:root.light-theme {
    --bg0: #ffffff; --bg1: #f6f8fa; --bg2: #eaeef2; --bg3: #d0d7de; --bg4: #afb8c1;
    --fg: #1f2328; --fg2: #59636e; --fg3: #8c959f;
    --accent: #0969da; --green: #1a7f37; --red: #d1242f; --yellow: #9a6700;
    --orange: #bc4c00; --border: #d0d7de;
    --term-bg: #f6f8fa;
    --selection: rgba(9,105,218,.2);
    --btn-fg: #24292f; --btn-bg: #f6f8fa; --btn-border: #d0d7de;
    --btn-hover-bg: #eaeef2; --btn-hover-border: #8c959f;
    --input-bg: #ffffff; --input-border: #d0d7de;
    --focus-border: #0969da;
    --sidebar-bg: #f6f8fa; --sidebar-active: #0969da; --sidebar-hover: #eaeef2;
    --scrollbar-thumb: #afb8c1;
    --logo-filter: none;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.07);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);

    --hl-kw: #d73a49; --hl-bi: #005cc5; --hl-fn: #6f42c1; --hl-str: #032f62;
    --hl-num: #005cc5; --hl-cmt: #6a737d; --hl-dec: #6f42c1; --hl-cls: #e36209;
    --hl-self: #005cc5; --hl-op: #24292e; --hl-const: #005cc5; --hl-mp: #e36209;
}

/* 亮色主题下按钮适配 */
:root.light-theme .btn-connect {
    background: linear-gradient(135deg, #f6f8fa, #eaeef2);
    color: #1f2328;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
:root.light-theme .btn-connect:hover { background: linear-gradient(135deg, #eaeef2, #d0d7de); }
:root.light-theme .btn-connect.connected { background: linear-gradient(135deg, var(--accent), #1f6feb); color: #fff; }
:root.light-theme .btn-connect.connected:hover { filter: brightness(1.06); background: linear-gradient(135deg, var(--accent), #1f6feb); }

/* ====== 基础重置 ====== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; overflow: hidden; }
body {
    font-family: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
    background: var(--bg0); color: var(--fg); display: flex; flex-direction: column;
    font-size: 14px; line-height: 1.5;
}

/* ====== 滚动条 ====== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--fg3); }

/* ====== 布局 ====== */
.app-layout { display: flex; flex: 1; min-height: 0; overflow: hidden; }
.hidden-input { display: none; }

/* ====== 侧边栏 ====== */
.sidebar {
    width: var(--sidebar-width); background: var(--sidebar-bg); border-right: 1px solid var(--border);
    display: flex; flex-direction: column; flex-shrink: 0; overflow: hidden;
    transition: width var(--transition);
}
.sidebar.collapsed { width: 0; border-right: none; }

.sidebar-header {
    display: flex; flex-direction: column; align-items: center;
    padding: 14px 14px 10px; border-bottom: 1px solid var(--border); gap: 8px;
}
.logo-link { display: block; width: 100%; text-align: center; transition: opacity var(--transition); }
.logo-link:hover { opacity: 0.85; }
.logo-img { width: 100%; max-width: 160px; height: auto; filter: var(--logo-filter); display: block; margin: 0 auto; }
.app-title-group { display: flex; align-items: center; gap: 8px; }
.app-title { font-size: 16px; font-weight: 700; color: var(--accent); }
.app-badge {
    font-size: 10px; background: rgba(47,129,247,0.15); color: var(--accent);
    padding: 1px 7px; border-radius: 10px; font-weight: 600;
}

/* 连接区域 */
.sidebar-connection { padding: 10px 14px; border-bottom: 1px solid var(--border); }
/* 连接设备 + 烧录固件 左右并排：连接为主(占满剩余宽度)，烧录为次(右侧小块) */
.conn-row { display: flex; gap: 7px; align-items: stretch; }
/* 烧录固件按钮：刻意做小，靠右，视觉权重低于"连接设备"，不喧宾夺主 */
.btn-flash-fw {
    flex: 0 0 auto; padding: 5px 10px;
    border-radius: var(--radius); border: 1px dashed var(--border);
    background: transparent; color: var(--fg3);
    cursor: pointer; font-size: 11px; font-weight: 500;
    display: flex; align-items: center; justify-content: center; gap: 4px;
    transition: all 0.18s ease; font-family: inherit; white-space: nowrap;
}
.btn-flash-fw svg { opacity: 0.8; }
.btn-flash-fw:hover {
    color: #ff7a45; border-color: #ff7a45;
    background: rgba(255,122,69,0.08);
}
.btn-connect {
    flex: 1 1 auto; padding: 9px 12px; border-radius: var(--radius); border: none;
    background: linear-gradient(135deg, #21262d, #30363d);
    color: var(--fg); cursor: pointer; font-size: 13px; font-weight: 500;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    transition: all 0.2s ease; font-family: inherit;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.btn-connect:hover { background: linear-gradient(135deg, #30363d, #484f58); transform: translateY(-1px); box-shadow: 0 3px 8px rgba(0,0,0,0.3); }
.btn-connect:active { transform: translateY(0); }
/* 连接成功后点亮为醒目强调色 */
.btn-connect.connected { background: linear-gradient(135deg, var(--accent), #1f6feb); color: #fff; font-weight: 600; box-shadow: 0 2px 6px rgba(0,0,0,0.25); }
.btn-connect.connected:hover { filter: brightness(1.08); background: linear-gradient(135deg, var(--accent), #1f6feb); }

/* 侧边栏运行控制 */
.sidebar-run-controls {
    display: flex; gap: 5px; margin-top: 8px;
}
.sb-run-btn {
    flex: 1; padding: 6px 6px; border-radius: var(--radius); border: none;
    cursor: pointer; font-size: 11px; font-weight: 600;
    display: flex; align-items: center; justify-content: center; gap: 4px;
    transition: all 0.2s ease; font-family: inherit;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.sb-run-btn:hover { transform: translateY(-1px); box-shadow: 0 3px 8px rgba(0,0,0,0.3); }
.sb-run-btn:active { transform: translateY(0); box-shadow: 0 1px 2px rgba(0,0,0,0.2); }
.sb-run-btn:disabled { opacity: 0.3; cursor: not-allowed; pointer-events: none; transform: none; box-shadow: none; }
.sb-btn-green {
    background: linear-gradient(135deg, #2ea043, #3fb950);
    color: #fff;
}
.sb-btn-green:hover { background: linear-gradient(135deg, #238636, #2ea043); }
.sb-btn-red {
    background: linear-gradient(135deg, #da3633, #f85149);
    color: #fff;
}
.sb-btn-red:hover { background: linear-gradient(135deg, #b62324, #da3633); }
.sb-run-btn:not(.sb-btn-green):not(.sb-btn-red) {
    background: linear-gradient(135deg, #1f6feb, #388bfd);
    color: #fff;
}
.sb-run-btn:not(.sb-btn-green):not(.sb-btn-red):hover { background: linear-gradient(135deg, #1a5fcb, #1f6feb); }
/* “保存到设备…” 按钮：纵向布局，文字两行显示，避免在窄侧边栏被截断 */
.sb-run-btn.sb-btn-save { flex-direction: column; gap: 2px; padding: 5px 4px; line-height: 1.15; }
.sb-run-btn.sb-btn-save span { white-space: normal; font-size: 10px; text-align: center; }
.status-dot {
    width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; transition: all 0.3s;
}
.status-dot.disconnected { background: var(--red); }
.status-dot.connected { background: var(--green); box-shadow: 0 0 8px var(--green); }
.status-dot.connecting { background: var(--yellow); animation: blink 0.8s infinite; }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

.conn-options {
    display: flex; align-items: center; gap: 8px; margin-top: 8px; font-size: 12px; color: var(--fg2);
}
.conn-options { display: none; }

/* 帧缓冲全屏 */
.fb-canvas-wrap:fullscreen {
    background: #000; width: 100vw; height: 100vh;
    overflow: auto;
    position: relative;
}
.fb-canvas-wrap:fullscreen canvas {
    display: block;
    margin: 0 auto;
    width: 100%; height: 100%; object-fit: contain;
}

/* 全屏提示气泡 */
.fs-hint {
    position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
    background: rgba(0,0,0,0.75); color: #fff;
    padding: 8px 20px; border-radius: 20px;
    font-size: 13px; font-family: var(--font-mono);
    z-index: 99999; opacity: 0; pointer-events: none;
    transition: opacity 0.2s;
}
.fs-hint.show { opacity: 1; }

/* ====== 本地工作区 ====== */
.ws-empty {
    padding: 30px 16px; text-align: center; color: var(--fg2);
    font-size: 12px; line-height: 1.6;
}
.ws-empty svg { display: block; margin: 0 auto 10px; }
.ws-empty p { margin: 4px 0; }

#workspaceTree.ws-drag-over {
    background: rgba(47,129,247,0.08);
    outline: 2px dashed var(--accent);
    outline-offset: -3px;
}

.ws-root {
    display: flex; align-items: center; gap: 5px;
    padding: 6px 10px; font-size: 11px; font-weight: 700;
    color: var(--fg); border-bottom: 1px solid var(--border);
    background: var(--bg2); cursor: pointer; user-select: none;
    text-transform: uppercase; letter-spacing: 0.4px;
}
.ws-root:hover { background: var(--bg3); }
.ws-root .ws-arrow { font-size: 9px; color: var(--fg3); width: 10px; flex-shrink: 0; }
.ws-root svg { color: var(--yellow); flex-shrink: 0; }
.ws-root-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ws-perm-warn { font-size: 11px; cursor: pointer; flex-shrink: 0; }
.ws-root-close {
    background: transparent; border: none; color: var(--fg3); cursor: pointer;
    font-size: 14px; line-height: 1; padding: 0 4px; border-radius: 3px;
    width: 18px; height: 18px; flex-shrink: 0; opacity: 0;
    transition: opacity 0.15s, background 0.15s;
}
.ws-root:hover .ws-root-close { opacity: 1; }
.ws-root-close:hover { background: var(--btn-hover-bg); color: var(--red); }

.ws-folder-content { padding: 2px 0; }

.ws-dir, .ws-file {
    display: flex; align-items: center; gap: 5px;
    padding: 3px 6px; font-size: 12px; cursor: pointer;
    color: var(--fg); transition: background var(--transition);
    user-select: none; border-left: 2px solid transparent;
    white-space: nowrap;
}
.ws-dir:hover, .ws-file:hover { background: var(--sidebar-hover); }
.ws-file.active {
    background: rgba(47,129,247,0.18);
    border-left-color: var(--accent);
}
.ws-file.active .ft-name { color: var(--accent); font-weight: 500; }
.ws-children { }
.ws-dir { font-weight: 500; }
.ws-dir .ws-arrow { width: 10px; font-size: 9px; color: var(--fg3); flex-shrink: 0; }
.ws-dir .ft-icon { color: var(--yellow); flex-shrink: 0; }
.ws-file .ft-icon { color: var(--fg3); flex-shrink: 0; }
.ws-file[data-ext="py"] .ft-icon { color: var(--accent); }
.ws-file[data-ext="md"] .ft-icon { color: var(--green); }
.ws-file[data-ext="json"] .ft-icon { color: var(--yellow); }

/* 右键菜单 */
.ws-context-menu {
    position: fixed; z-index: 1000;
    background: var(--bg1); border: 1px solid var(--border);
    border-radius: var(--radius); box-shadow: var(--shadow-md);
    padding: 4px 0; min-width: 160px; font-size: 12px;
    user-select: none;
}
.ws-ctx-item {
    padding: 6px 14px; cursor: pointer; color: var(--fg);
    transition: background 0.1s;
}
.ws-ctx-item:hover { background: var(--accent); color: #fff; }
.ws-ctx-sep { height: 1px; background: var(--border); margin: 4px 0; }

/* 标签页本地文件徽标 */
.tab-badge {
    display: inline-flex; align-items: center; justify-content: center;
    color: var(--green); margin-right: 2px; flex-shrink: 0;
}
.conn-options select {
    flex: 1; background: var(--input-bg); color: var(--fg); border: 1px solid var(--input-border);
    border-radius: 4px; padding: 2px 4px; font-size: 12px; font-family: inherit;
}

/* 侧边栏标签页 */
.sidebar-tabs {
    display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4px; padding: 8px 10px; border-bottom: 1px solid var(--border);
    background: var(--sidebar-bg);
}
.sb-tab {
    min-width: 0; height: 30px; padding: 0 7px; font-size: 12px; font-weight: 650;
    text-align: center; border: 1px solid transparent; border-radius: 6px;
    background: transparent; color: var(--fg3); cursor: pointer;
    display: inline-flex; align-items: center; justify-content: center; gap: 5px;
    transition: background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
    font-family: inherit;
}
.sb-tab svg { flex-shrink: 0; opacity: 0.82; }
.sb-tab span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sb-tab:hover { color: var(--fg2); background: var(--sidebar-hover); border-color: var(--border); }
.sb-tab.active {
    color: var(--fg); background: var(--bg2); border-color: var(--accent);
    box-shadow: inset 0 0 0 1px rgba(47,129,247,0.08);
}
.sb-tab.active svg { color: var(--accent); opacity: 1; }

/* 侧边栏面板 */
.sb-panel { display: none; flex: 1; flex-direction: column; overflow: hidden; }
.sb-panel.active { display: flex; }
#panel-workspace { overflow-y: auto; }
.sb-panel-header {
    padding: 6px 10px; font-size: 11px; font-weight: 700; color: var(--fg3);
    text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
}
.sb-panel-actions { display: flex; gap: 2px; }

/* 工作区分区（设备文件 / 本地文件） */
.ws-section { border-bottom: 1px solid var(--border); }
.ws-section:last-child { border-bottom: none; }
.ws-section-header {
    padding: 5px 8px; font-size: 11px; font-weight: 600; color: var(--fg);
    text-transform: uppercase; letter-spacing: 0.4px;
    display: flex; align-items: center; gap: 5px; cursor: pointer;
    user-select: none; background: var(--bg2);
}
.ws-section-header:hover { background: var(--sidebar-hover); }
.ws-section-arrow { transition: transform 0.15s; flex-shrink: 0; }
.ws-section.expanded .ws-section-arrow { transform: rotate(90deg); }
.ws-section-icon { flex-shrink: 0; opacity: 0.7; }
.ws-section-actions { margin-left: auto; display: flex; gap: 1px; }
.ws-section-body { overflow-y: auto; padding: 2px 0; }
.ws-section:not(.expanded) .ws-section-body { display: none; }
.ws-section:not(.expanded) .ws-section-actions { display: none; }

/* 设备目录选择器 */
.dev-dir-picker-overlay {
    position: fixed; inset: 0; z-index: 9999;
    background: rgba(0,0,0,0.45); display: flex; align-items: center; justify-content: center;
}
.dev-dir-picker {
    background: var(--bg2); border: 1px solid var(--border); border-radius: 8px;
    min-width: 260px; max-width: 400px; padding: 8px 0; box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}
.dev-dir-picker-title {
    padding: 8px 16px 6px; font-size: 12px; font-weight: 600; color: var(--fg);
    border-bottom: 1px solid var(--border); margin-bottom: 4px;
}
.dev-dir-picker-item {
    padding: 7px 16px; font-size: 13px; color: var(--fg2); cursor: pointer;
    font-family: "JetBrains Mono", monospace;
}
.dev-dir-picker-item:hover { background: var(--accent); color: #fff; }
.dev-dir-picker-cancel {
    padding: 7px 16px; font-size: 12px; color: var(--fg3); cursor: pointer;
    border-top: 1px solid var(--border); margin-top: 4px; text-align: center;
}
.dev-dir-picker-cancel:hover { color: var(--fg); }

/* ====== 文件预览器 ====== */
.preview-wrap {
    flex: 1; overflow: hidden; display: flex; flex-direction: column;
    background: var(--bg); position: relative;
}

/* 预览工具栏 */
.preview-toolbar {
    padding: 6px 12px; display: flex; align-items: center; justify-content: space-between;
    border-bottom: 1px solid var(--border); background: var(--bg2); flex-shrink: 0;
}
.preview-info { font-size: 12px; color: var(--fg2); }
.preview-toolbar-btns { display: flex; gap: 4px; }
.preview-btn {
    padding: 3px 10px; font-size: 11px; border: 1px solid var(--border); border-radius: 4px;
    background: var(--bg); color: var(--fg2); cursor: pointer;
}
.preview-btn:hover { background: var(--sidebar-hover); color: var(--fg); }

/* 图片预览 */
.preview-image-viewport {
    flex: 1; overflow: auto; position: relative;
    padding: 10px; cursor: grab;
    background: repeating-conic-gradient(var(--bg2) 0% 25%, transparent 0% 50%) 0 0 / 16px 16px;
    display: flex; align-items: center; justify-content: center;
}
.preview-image-viewport.zoomed {
    align-items: flex-start; justify-content: flex-start;
}
.preview-image {
    display: block; user-select: none; pointer-events: none;
    box-shadow: 0 2px 12px rgba(0,0,0,0.2);
    flex-shrink: 0;
}

/* 音频播放器 */
.preview-audio-wrap {
    display: flex; align-items: center; justify-content: center;
}
.preview-audio-card {
    width: 420px; padding: 28px 32px; background: var(--bg2);
    border-radius: 12px; border: 1px solid var(--border); box-shadow: 0 4px 24px rgba(0,0,0,0.15);
}
.preview-audio-info { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.preview-audio-icon { font-size: 36px; opacity: 0.7; }
.preview-audio-name { font-size: 14px; font-weight: 600; color: var(--fg); }
.preview-audio-detail { font-size: 12px; color: var(--fg3); margin-top: 3px; }
.preview-audio-controls { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.preview-audio-play {
    width: 36px; height: 36px; border-radius: 50%; border: none;
    background: var(--accent); color: #fff; font-size: 14px; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
}
.preview-audio-play:hover { opacity: 0.85; }
.preview-audio-time { font-size: 11px; color: var(--fg3); min-width: 80px; white-space: nowrap; }
.preview-audio-progress {
    flex: 1; min-width: 100px; height: 6px; cursor: pointer;
    accent-color: var(--accent);
}
.preview-audio-vol-icon { font-size: 14px; opacity: 0.6; margin-left: 4px; }
.preview-audio-volume { width: 60px; height: 4px; accent-color: var(--accent); cursor: pointer; }

/* Hex Dump */
.preview-hex-wrap { display: flex; flex-direction: column; }
.preview-hex-content { flex: 1; overflow: hidden; font-size: 0; }
.hex-scroll-wrapper { font-size: 13px; }
.hex-row {
    height: 20px; line-height: 20px; white-space: pre;
    font-family: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
    font-size: 12px; padding: 0 12px;
}
.hex-row:hover { background: var(--sidebar-hover); }
.hex-addr { color: var(--fg3); margin-right: 16px; }
.hex-bytes { color: var(--fg); margin-right: 16px; }
.hex-ascii { color: var(--accent); }

/* 文件树 */
.file-tree { flex: 1; overflow-y: auto; padding: 2px 0; }
.file-tree-empty {
    padding: 20px 14px; text-align: center; color: var(--fg3); font-size: 12px;
}
.ft-item {
    padding: 3px 10px 3px 18px; font-size: 13px; cursor: pointer;
    display: flex; align-items: center; gap: 6px; color: var(--fg2);
}
.ft-item:hover { background: var(--sidebar-hover); color: var(--fg); }
.ft-item.active { background: var(--bg3); color: var(--accent); }
.ft-item .ft-icon { flex-shrink: 0; opacity: 0.6; }
.ft-item .ft-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ft-item .ft-size { font-size: 11px; color: var(--fg3); }
.ft-item .ft-actions { display: none; gap: 2px; }
.ft-item:hover .ft-actions { display: flex; }
.ft-folder { font-weight: 600; }
.ft-folder-children { padding-left: 12px; }
.ft-category {
    padding: 6px 10px; font-size: 11px; font-weight: 700; color: var(--accent);
    letter-spacing: 0.3px; cursor: pointer; display: flex; align-items: center; gap: 4px;
}
.ft-category:hover { background: var(--sidebar-hover); }
.ft-category .ft-arrow { transition: transform var(--transition); font-size: 10px; }
.ft-category.collapsed .ft-arrow { transform: rotate(-90deg); }
.ft-category.collapsed + .ft-folder-children { display: none; }

/* 工作区跨文件搜索 */
.ws-search-box {
    padding: 10px; border-bottom: 1px solid var(--border);
    background: var(--sidebar-bg);
    flex-shrink: 0;
}
.ws-search-input-wrap {
    display: flex; align-items: center; gap: 7px;
    height: 32px; padding: 0 9px; border: 1px solid var(--input-border);
    border-radius: 7px; background: var(--input-bg); color: var(--fg3);
    transition: border-color var(--transition), box-shadow var(--transition);
}
.ws-search-input-wrap:focus-within {
    border-color: var(--focus-border);
    box-shadow: 0 0 0 3px rgba(47,129,247,0.14);
}
.ws-search-input-wrap svg { flex-shrink: 0; }
.ws-search-input-wrap input {
    width: 100%; min-width: 0; border: none; outline: none; background: transparent;
    color: var(--fg); font: inherit; font-size: 13px;
}
.ws-search-input-wrap input::placeholder { color: var(--fg3); }
.ws-search-options {
    display: flex; align-items: center; gap: 8px; margin-top: 8px;
    color: var(--fg3); font-size: 11px;
}
.ws-search-options label {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 2px 5px; border-radius: 4px; cursor: pointer; user-select: none;
}
.ws-search-options label:hover { background: var(--sidebar-hover); color: var(--fg2); }
.ws-search-options input { accent-color: var(--accent); }
.ws-search-stats {
    margin-left: auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    color: var(--fg3);
}
.ws-search-results {
    flex: 1; overflow-y: auto; padding: 6px 0 12px;
}
.ws-search-empty {
    min-height: 170px; padding: 28px 16px; display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 7px; text-align: center;
    color: var(--fg3); font-size: 12px; line-height: 1.5;
}
.ws-search-empty p { margin: 0; color: var(--fg2); }
.ws-search-empty span { font-size: 11px; color: var(--fg3); }
.ws-search-error p { color: var(--red); }
.ws-search-spinner {
    width: 22px; height: 22px; border-radius: 50%;
    border: 2px solid var(--border); border-top-color: var(--accent);
    animation: ws-spin 0.75s linear infinite;
}
@keyframes ws-spin { to { transform: rotate(360deg); } }
.ws-search-group {
    margin: 0 6px 8px; border: 1px solid var(--border);
    border-radius: 7px; overflow: hidden; background: rgba(255,255,255,0.015);
}
.ws-search-file {
    display: flex; align-items: center; gap: 6px;
    min-height: 30px; padding: 6px 8px;
    background: var(--bg2); color: var(--fg2); font-size: 12px; font-weight: 650;
}
.ws-search-file svg { color: var(--accent); flex-shrink: 0; }
.ws-search-file-name {
    flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.ws-search-count {
    flex-shrink: 0; min-width: 20px; height: 18px; padding: 0 6px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 999px; background: rgba(47,129,247,0.16); color: var(--accent);
    font-size: 11px; font-weight: 700;
}
.ws-search-match-list { padding: 3px 0; }
.ws-search-match {
    width: 100%; border: none; background: transparent; color: var(--fg2);
    display: grid; grid-template-columns: 48px minmax(0, 1fr); align-items: start;
    gap: 6px; padding: 5px 8px; cursor: pointer; text-align: left; font: inherit;
    border-left: 2px solid transparent;
}
.ws-search-match:hover {
    background: var(--sidebar-hover); color: var(--fg);
    border-left-color: var(--accent);
}
.ws-search-loc {
    color: var(--fg3); font-family: var(--font-mono); font-size: 11px; line-height: 1.5;
}
.ws-search-preview {
    min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    font-family: var(--font-mono); font-size: 11px; line-height: 1.5;
}
.ws-search-preview mark {
    color: inherit; background: rgba(210,153,34,0.34);
    border-radius: 3px; padding: 0 1px;
}

.sidebar-footer {
    padding: 8px 14px; border-top: 1px solid var(--border);
    font-size: 11px; color: var(--fg3); display: flex; justify-content: space-between;
}

/* ====== 主内容区 ====== */
.main-area { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0; }

/* ====== 工具栏 ====== */
.toolbar {
    height: var(--toolbar-height); background: var(--bg1); border-bottom: 1px solid var(--border);
    padding: 0 8px; display: flex; align-items: center; gap: 2px; flex-shrink: 0;
}
.tb {
    background: transparent; color: var(--btn-fg); border: 1px solid transparent;
    border-radius: var(--radius); padding: 4px 8px; font-size: 12px; cursor: pointer;
    display: inline-flex; align-items: center; gap: 4px;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
    white-space: nowrap; font-family: inherit; height: 28px;
}
.tb:hover { background: var(--btn-hover-bg); border-color: var(--btn-hover-border); }
.tb:active { transform: scale(0.95); }
.tb:disabled { opacity: 0.35; cursor: not-allowed; pointer-events: none; }
.tb.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.sep { width: 1px; height: 20px; background: var(--border); margin: 0 5px; }
.toolbar-spacer { flex: 1; }

/* ====== 工作区 ====== */
.workspace { flex: 1; display: flex; overflow: hidden; min-height: 0; }

/* ====== 编辑器面板 ====== */
.editor-panel { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 200px; }

/* 标签栏 */
.tab-bar {
    height: var(--tab-height); background: var(--bg1); display: flex; align-items: stretch;
    border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.tabs-scroll { display: flex; overflow-x: auto; flex: 1; min-width: 0; scrollbar-width: none; }
.tabs-scroll::-webkit-scrollbar { display: none; }
.tab-item {
    padding: 0 12px; font-size: 13px; cursor: pointer; border-right: 1px solid var(--border);
    white-space: nowrap; flex-shrink: 0;
    display: flex; align-items: center; gap: 6px; color: var(--fg3); white-space: nowrap;
    user-select: none; transition: background var(--transition); flex-shrink: 0;
}
.tab-item:hover { background: var(--bg2); }
.tab-item.active { background: var(--bg0); color: var(--fg); border-bottom: 2px solid var(--accent); }
.tab-item .tab-close {
    font-size: 14px; color: var(--fg3); cursor: pointer; padding: 0 2px;
    border-radius: 3px; line-height: 1; background: none; border: none; font-family: inherit;
}
.tab-item .tab-close:hover { color: var(--red); background: var(--bg3); }
.tab-item .tab-dot { color: var(--orange); font-size: 10px; }
.tab-plus {
    padding: 0 10px; color: var(--fg3); cursor: pointer; font-size: 18px;
    background: none; border: none; border-left: 1px solid var(--border); font-family: inherit;
}
.tab-plus:hover { color: var(--accent); background: var(--bg2); }

/* 编辑器 - CodeMirror 6 */
.editor-wrap { flex: 1; display: flex; overflow: hidden; min-height: 60px; position: relative; }
.cm-editor-host { flex: 1; min-width: 0; overflow: hidden; }
/* 空标签欢迎页 */
.editor-welcome {
    position: absolute; inset: 0; z-index: 5; overflow: auto;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 24px; background: var(--bg0); text-align: center;
}
.editor-welcome .ew-logo { font-size: 46px; margin-bottom: 8px; }
.editor-welcome .ew-title { font-size: 26px; font-weight: 700; color: var(--fg); margin: 0 0 6px; }
.editor-welcome .ew-sub { font-size: 14px; color: var(--fg2); margin: 0 0 22px; }
.editor-welcome .ew-actions { display: flex; gap: 12px; margin-bottom: 26px; flex-wrap: wrap; justify-content: center; }
.editor-welcome .ew-btn {
    display: inline-flex; align-items: center; gap: 6px; padding: 9px 18px; border-radius: 8px;
    font-size: 14px; font-weight: 500; cursor: pointer; text-decoration: none;
    border: 1px solid var(--border); background: var(--bg2); color: var(--fg); transition: all .15s;
}
.editor-welcome .ew-btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.editor-welcome .ew-btn-primary { background: linear-gradient(135deg, var(--accent), #1f6feb); color: #fff; border: none; }
.editor-welcome .ew-tips {
    display: flex; flex-direction: column; gap: 10px; max-width: 460px; width: 100%;
    text-align: left; background: var(--bg1); border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px;
}
.editor-welcome .ew-tip { font-size: 13px; color: var(--fg2); line-height: 1.6; }
.editor-welcome .ew-tip b { color: var(--accent); }
.editor-welcome .ew-tip code { background: var(--bg3); padding: 1px 6px; border-radius: 4px; font-size: 12px; color: var(--fg); }
.cm-editor {
    height: 100%;
    background: var(--bg0);
    color: var(--fg);
    font-family: var(--editor-font-family, var(--font-mono));
    font-size: var(--editor-font-size, 14px);
}
.cm-editor.cm-focused { outline: none; }
.cm-editor .cm-scroller {
    font-family: var(--editor-font-family, var(--font-mono));
    font-size: var(--editor-font-size, 14px);
    line-height: 1.65;
}
.cm-editor .cm-content {
    padding: 6px 0;
    caret-color: var(--accent);
    font-family: var(--editor-font-family, var(--font-mono));
    font-size: var(--editor-font-size, 14px);
    tab-size: var(--editor-tab-size, 4);
}
.cm-editor .cm-gutters {
    font-family: var(--editor-font-family, var(--font-mono));
    font-size: var(--editor-font-size, 14px);
    background: var(--bg1); color: var(--fg3); border-right: 1px solid var(--border);
}
.cm-editor .cm-activeLineGutter { background: var(--bg2); color: var(--fg); }
.cm-editor .cm-activeLine { background: rgba(255,255,255,0.03); }
:root.light-theme .cm-editor .cm-activeLine { background: rgba(0,0,0,0.04); }
.cm-editor .cm-selectionBackground, .cm-editor.cm-focused .cm-selectionBackground, .cm-editor ::selection { background: var(--selection) !important; }
.cm-editor .cm-cursor { border-left-color: var(--accent); }
.cm-editor .cm-matchingBracket { background: rgba(63,185,80,0.2); outline: 1px solid var(--green); }
.cm-editor .cm-foldGutter .cm-gutterElement { color: var(--fg3); cursor: pointer; }
.cm-editor .cm-foldPlaceholder { background: var(--bg2); color: var(--fg2); border: 1px solid var(--border); border-radius: 3px; padding: 0 4px; }
.cm-tooltip.cm-tooltip-autocomplete { background: var(--bg1) !important; border: 1px solid var(--border) !important; border-radius: var(--radius); box-shadow: var(--shadow-md); color: var(--fg); font-family: var(--font-mono); }
.cm-tooltip.cm-tooltip-autocomplete > ul > li[aria-selected] { background: var(--accent); color: #fff; }
/* CM6 查找/替换面板 - 项目风格定制（用 .cm-editor 提高优先级覆盖 CM6 默认） */
.cm-editor .cm-panels {
    background: var(--bg1) !important;
    color: var(--fg) !important;
    border-top: 1px solid var(--border) !important;
    font-family: inherit !important;
}
.cm-editor .cm-panels.cm-panels-bottom { border-top: 1px solid var(--border) !important; }
.cm-editor .cm-panels.cm-panels-top { border-bottom: 1px solid var(--border) !important; }

.cm-editor .cm-panel.cm-search {
    padding: 10px 14px !important;
    display: flex !important;
    flex-wrap: wrap !important;
    align-items: center !important;
    gap: 8px !important;
    background: var(--bg1) !important;
    color: var(--fg) !important;
    font-family: inherit !important;
    position: relative !important;
}

/* 所有 input/button 强制继承字号字体颜色 */
.cm-editor .cm-panel.cm-search input,
.cm-editor .cm-panel.cm-search button,
.cm-editor .cm-panel.cm-search label {
    font-family: inherit !important;
    font-size: 13px !important;
    color: var(--fg) !important;
}

/* 文本输入框：覆盖默认白底 */
.cm-editor .cm-panel.cm-search input,
.cm-editor .cm-panel.cm-search input.cm-textfield,
.cm-editor .cm-panel.cm-search input[name="search"],
.cm-editor .cm-panel.cm-search input[name="replace"] {
    background: var(--input-bg) !important;
    color: var(--fg) !important;
    border: 1px solid var(--input-border) !important;
    border-radius: var(--radius) !important;
    padding: 5px 10px !important;
    font-family: var(--font-mono) !important;
    font-size: 13px !important;
    outline: none !important;
    height: 30px !important;
    box-sizing: border-box !important;
    min-width: 200px !important;
    transition: border-color 0.15s ease, box-shadow 0.15s ease !important;
}
.cm-editor .cm-panel.cm-search input:focus {
    border-color: var(--accent) !important;
    box-shadow: 0 0 0 3px rgba(47,129,247,0.2) !important;
}
.cm-editor .cm-panel.cm-search input::placeholder { color: var(--fg3) !important; }

/* 按钮 */
.cm-editor .cm-panel.cm-search button {
    background: var(--btn-bg) !important;
    color: var(--btn-fg) !important;
    border: 1px solid var(--btn-border) !important;
    border-radius: var(--radius) !important;
    padding: 0 14px !important;
    height: 30px !important;
    cursor: pointer !important;
    font-family: inherit !important;
    font-size: 12px !important;
    font-weight: 500 !important;
    transition: all 0.15s ease !important;
    box-sizing: border-box !important;
    text-transform: none !important;
    line-height: 1 !important;
}
.cm-editor .cm-panel.cm-search button:hover {
    background: var(--btn-hover-bg) !important;
    border-color: var(--btn-hover-border) !important;
    color: var(--fg) !important;
}
.cm-editor .cm-panel.cm-search button:active { transform: scale(0.97) !important; }

/* 关闭按钮：右上角 */
.cm-editor .cm-panel.cm-search button[name="close"] {
    position: absolute !important;
    right: 8px !important;
    top: 8px !important;
    background: transparent !important;
    border: 1px solid transparent !important;
    color: var(--fg2) !important;
    font-size: 18px !important;
    line-height: 1 !important;
    padding: 0 !important;
    width: 26px !important;
    height: 26px !important;
    min-width: 26px !important;
    border-radius: var(--radius) !important;
}
.cm-editor .cm-panel.cm-search button[name="close"]:hover {
    background: var(--btn-hover-bg) !important;
    color: var(--fg) !important;
}

/* 复选框选项 */
.cm-editor .cm-panel.cm-search label {
    display: inline-flex !important;
    align-items: center !important;
    gap: 5px !important;
    font-size: 12px !important;
    color: var(--fg2) !important;
    cursor: pointer !important;
    user-select: none !important;
    padding: 0 4px !important;
}
.cm-editor .cm-panel.cm-search label input[type="checkbox"] {
    width: 14px !important;
    height: 14px !important;
    margin: 0 !important;
    cursor: pointer !important;
    accent-color: var(--accent) !important;
    min-width: 14px !important;
}

.cm-editor .cm-panel.cm-search br { display: none !important; }

/* 跳转到行面板（Ctrl+G） */
.cm-editor .cm-panel.cm-gotoLine {
    padding: 10px 14px !important;
    background: var(--bg1) !important;
    color: var(--fg) !important;
    display: flex !important;
    gap: 8px !important;
    align-items: center !important;
}
.cm-editor .cm-panel.cm-gotoLine input {
    background: var(--input-bg) !important;
    color: var(--fg) !important;
    border: 1px solid var(--input-border) !important;
    border-radius: var(--radius) !important;
    padding: 5px 10px !important;
    height: 30px !important;
    font-size: 13px !important;
}

/* 搜索结果高亮 */
.cm-editor .cm-searchMatch {
    background: rgba(247, 207, 61, 0.4) !important;
    outline: 1px solid rgba(247, 207, 61, 0.6) !important;
}
.cm-editor .cm-searchMatch-selected {
    background: rgba(240, 136, 62, 0.55) !important;
    outline: 1px solid var(--orange) !important;
}

/* API 参数提示气泡 */
.cm-tooltip.cm-tooltip-hover {
    background: var(--bg1) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius) !important;
    box-shadow: var(--shadow-md);
    color: var(--fg);
    max-width: 480px;
    padding: 0 !important;
}
.cm-sig-tooltip { padding: 8px 12px; font-size: 12px; line-height: 1.5; }
.cm-sig-head {
    font-family: var(--font-mono);
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 4px;
    word-break: break-all;
}
.cm-sig-doc { color: var(--fg2); font-size: 12px; }
    transition: top 0.05s;
}

/* 语法高亮 */
.hl-kw { color: var(--hl-kw); } .hl-bi { color: var(--hl-bi); }
.hl-fn { color: var(--hl-fn); } .hl-str { color: var(--hl-str); }
.hl-num { color: var(--hl-num); } .hl-cmt { color: var(--hl-cmt); font-style: italic; }
.hl-dec { color: var(--hl-dec); } .hl-cls { color: var(--hl-cls); }
.hl-self { color: var(--hl-self); font-style: italic; } .hl-op { color: var(--hl-op); }
.hl-const { color: var(--hl-const); font-weight: bold; } .hl-mp { color: var(--hl-mp); }

/* ====== 拖拽条 ====== */
.drag-bar { background: var(--border); flex-shrink: 0; transition: background var(--transition); z-index: 5; }
.drag-bar:hover, .drag-bar.dragging { background: var(--accent); }
.drag-bar-h { height: 4px; cursor: ns-resize; }
.drag-bar-v { width: 4px; cursor: ew-resize; }

/* ====== 终端面板 ====== */
.terminal-panel {
    height: var(--terminal-height); display: flex; flex-direction: column;
    background: var(--term-bg); overflow: hidden; min-height: 80px;
}
.terminal-header {
    padding: 4px 10px; font-size: 11px; font-weight: 700; color: var(--fg3);
    text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    background: var(--bg1); flex-shrink: 0;
}
.terminal-actions { display: flex; gap: 2px; }
.terminal-body {
    flex: 1; overflow-y: auto; padding: 6px 10px;
    font-family: var(--font-mono); font-size: 13px; line-height: 1.5;
    color: var(--fg); white-space: pre-wrap; word-break: break-all;
}
.terminal-input-wrap {
    display: flex; align-items: center; padding: 0 10px 4px;
    border-top: 1px solid var(--border); background: var(--term-bg); flex-shrink: 0;
}
.terminal-prompt {
    color: var(--green); font-family: var(--font-mono); font-size: 13px;
    margin-right: 6px; user-select: none; flex-shrink: 0;
}
.terminal-input {
    flex: 1; background: transparent; border: none; outline: none;
    color: var(--fg); font-family: var(--font-mono); font-size: 13px;
}
/* 终端颜色 */
.t-red { color: var(--red); } .t-green { color: var(--green); }
.t-yellow { color: var(--yellow); } .t-accent { color: var(--accent); }
.t-gray { color: var(--fg3); } .t-orange { color: var(--orange); }

/* ====== 帧缓冲面板 ====== */
.framebuf-panel {
    width: var(--framebuf-width); display: flex; flex-direction: column;
    border-left: 1px solid var(--border); background: var(--bg1); flex-shrink: 0; overflow: hidden;
}
.framebuf-panel.collapsed { width: 0; border-left: none; overflow: hidden; }

/* ====== 右侧面板 tab 切换（预览 / AI） ====== */
.rp-tabs {
    display: flex; flex-shrink: 0; border-bottom: 1px solid var(--border);
    background: var(--bg2);
}
.rp-tab {
    flex: 1; display: flex; align-items: center; justify-content: center; gap: 5px;
    padding: 7px 8px; font-size: 12px; color: var(--fg3); background: transparent;
    border: none; border-bottom: 2px solid transparent; cursor: pointer;
    font-family: inherit; transition: var(--transition);
}
.rp-tab:hover { color: var(--fg2); background: var(--sidebar-hover); }
.rp-tab.active { color: var(--accent); border-bottom-color: var(--accent); background: var(--bg1); }
.rp-tab svg { flex-shrink: 0; }
.rp-inner { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-height: 0; }

/* ====== AI 助手面板 ====== */
.ai-inner { background: var(--bg1); }
.ai-panel { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-height: 0; position: relative; }

.ai-header {
    display: flex; align-items: center; gap: 6px; padding: 6px 8px;
    border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.ai-title {
    flex: 1; font-size: 12px; font-weight: 600; color: var(--fg);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ai-icon-btn {
    display: flex; align-items: center; justify-content: center;
    width: 26px; height: 26px; border-radius: var(--radius);
    background: transparent; border: none; color: var(--fg2); cursor: pointer;
    transition: var(--transition);
}
.ai-icon-btn:hover { background: var(--sidebar-hover); color: var(--fg); }

/* 会话抽屉 */
.ai-drawer {
    position: absolute; top: 39px; left: 0; right: 0; z-index: 20;
    background: var(--bg2); border-bottom: 1px solid var(--border);
    max-height: 0; overflow: hidden; transition: max-height 0.2s ease;
    box-shadow: var(--shadow-md);
}
.ai-drawer.open { max-height: 50%; overflow-y: auto; }
.ai-drawer-item {
    display: flex; align-items: center; gap: 6px; padding: 8px 12px;
    font-size: 12px; color: var(--fg2); cursor: pointer; border-bottom: 1px solid var(--border);
}
.ai-drawer-item:hover { background: var(--sidebar-hover); }
.ai-drawer-item.active { color: var(--accent); background: var(--sidebar-active); }
.ai-drawer-item-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ai-drawer-del {
    width: 18px; height: 18px; border: none; background: transparent; color: var(--fg3);
    cursor: pointer; font-size: 16px; line-height: 1; border-radius: 3px; flex-shrink: 0;
}
.ai-drawer-del:hover { background: var(--red); color: #fff; }

/* 消息区 */
.ai-messages { flex: 1; overflow-y: auto; padding: 12px 10px; display: flex; flex-direction: column; gap: 12px; }

.ai-welcome { text-align: center; color: var(--fg3); padding: 24px 12px; margin: auto 0; }
.ai-welcome-icon { font-size: 38px; margin-bottom: 8px; }
.ai-welcome-title { font-size: 15px; font-weight: 600; color: var(--fg); margin-bottom: 4px; }
.ai-welcome-sub { font-size: 12px; margin-bottom: 16px; line-height: 1.5; }
.ai-welcome-chips { display: flex; flex-direction: column; gap: 6px; }
.ai-chip {
    padding: 8px 12px; font-size: 12px; color: var(--fg2); background: var(--bg2);
    border: 1px solid var(--border); border-radius: var(--radius); cursor: pointer;
    text-align: left; transition: var(--transition); font-family: inherit;
}
.ai-chip:hover { border-color: var(--accent); color: var(--fg); }

/* 欢迎页内嵌 API Key 输入框 */
.ai-welcome-keybox {
    display: flex; flex-direction: column; gap: 8px; max-width: 360px;
    margin: 0 auto 12px; width: 100%;
}
.ai-welcome-keyinput {
    flex: 1; padding: 8px 12px; font-size: 13px; font-family: var(--font-mono);
    background: var(--input-bg); color: var(--fg);
    border: 1px solid var(--input-border); border-radius: var(--radius);
    outline: none;
}
.ai-welcome-keyinput:focus { border-color: var(--focus-border); }
.ai-welcome-keysave {
    padding: 8px 16px; font-size: 13px; border-radius: var(--radius);
    background: var(--accent); color: #fff; border: none; cursor: pointer;
    font-family: inherit; white-space: nowrap;
}
.ai-welcome-keysave:hover { opacity: 0.88; }
.ai-welcome-hint {
    font-size: 11px; color: var(--fg3); margin-top: 8px; line-height: 1.5;
}

.ai-msg { display: flex; }
.ai-msg-user { justify-content: flex-end; }
.ai-msg-assistant { justify-content: flex-start; }
.ai-bubble {
    max-width: 92%; padding: 8px 11px; border-radius: 10px; font-size: 13px;
    line-height: 1.6; word-break: break-word; overflow-wrap: anywhere;
}
.ai-bubble-user { background: var(--accent); color: #fff; border-bottom-right-radius: 3px; white-space: pre-wrap; }
.ai-bubble-assistant {
    background: var(--bg2); color: var(--fg); border: 1px solid var(--border);
    border-bottom-left-radius: 3px; max-width: 100%; width: 100%;
}

/* markdown 元素 */
.ai-bubble-assistant p { margin: 0 0 8px; }
.ai-bubble-assistant p:last-child { margin-bottom: 0; }
.ai-bubble-assistant h1, .ai-bubble-assistant h2, .ai-bubble-assistant h3 {
    margin: 10px 0 6px; font-size: 14px; color: var(--fg); font-weight: 600;
}
.ai-bubble-assistant ul, .ai-bubble-assistant ol { margin: 4px 0 8px; padding-left: 20px; }
.ai-bubble-assistant li { margin: 2px 0; }
.ai-bubble-assistant a { color: var(--accent); }
.ai-bubble-assistant blockquote {
    margin: 6px 0; padding: 4px 10px; border-left: 3px solid var(--border); color: var(--fg2);
}
.ai-inline-code {
    font-family: var(--font-mono); font-size: 12px; background: var(--bg0);
    padding: 1px 5px; border-radius: 3px; color: var(--orange);
}
.ai-cursor { animation: ai-blink 1s step-end infinite; color: var(--accent); }
@keyframes ai-blink { 50% { opacity: 0; } }

.ai-error { color: var(--red); font-size: 12px; white-space: pre-wrap; line-height: 1.6; word-break: break-word; }

/* 代码块 */
.ai-code-block {
    margin: 8px 0; border: 1px solid var(--border); border-radius: var(--radius);
    overflow: hidden; background: var(--bg0);
}
.ai-code-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 4px 8px; background: var(--bg2); border-bottom: 1px solid var(--border);
}
.ai-code-lang { font-size: 11px; color: var(--fg3); text-transform: uppercase; letter-spacing: 0.5px; }
.ai-code-actions { display: flex; gap: 4px; }
.ai-code-btn {
    padding: 2px 8px; font-size: 11px; border: 1px solid var(--border); border-radius: 3px;
    background: var(--bg1); color: var(--fg2); cursor: pointer; font-family: inherit;
}
.ai-code-btn:hover { background: var(--sidebar-hover); color: var(--fg); }
.ai-code-btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.ai-code-btn-primary:hover { opacity: 0.85; background: var(--accent); color: #fff; }
.ai-code-pre {
    margin: 0; padding: 10px; overflow-x: auto; font-family: var(--font-mono);
    font-size: 12px; line-height: 1.5; color: var(--fg);
}
.ai-code-pre code { white-space: pre; }

/* Python 语法高亮 */
.hl-keyword { color: #ff7b72; font-weight: 500; }
.hl-builtin { color: #d2a8ff; }
.hl-string { color: #a5d6ff; }
.hl-comment { color: #8b949e; font-style: italic; }
.hl-number { color: #79c0ff; }
.hl-func { color: #d2a8ff; }
.hl-decorator { color: #ffa657; }
.hl-op { color: #ff7b72; }
.light-theme .hl-keyword { color: #cf222e; }
.light-theme .hl-builtin { color: #8250df; }
.light-theme .hl-string { color: #0a3069; }
.light-theme .hl-comment { color: #6e7781; }
.light-theme .hl-number { color: #0550ae; }
.light-theme .hl-func { color: #8250df; }
.light-theme .hl-decorator { color: #953800; }
.light-theme .hl-op { color: #cf222e; }

/* 表格（Typora 风格） */
.ai-table-wrap { margin: 8px 0; overflow-x: auto; }
.ai-table {
    width: 100%; border-collapse: collapse; font-size: 12px; line-height: 1.6;
}
.ai-table th, .ai-table td {
    padding: 6px 10px; border: 1px solid var(--border); text-align: left;
}
.ai-table th {
    background: var(--bg2); font-weight: 600; color: var(--fg); white-space: nowrap;
}
.ai-table td { color: var(--fg2); }
.ai-table tr:hover td { background: var(--sidebar-hover); }
.ai-table code.ai-inline-code { font-size: 11px; }

/* 工具调用卡片 */
.ai-tool-card {
    margin: 8px 0; padding: 8px 10px; background: var(--bg0);
    border: 1px solid var(--border); border-radius: var(--radius); border-left: 3px solid var(--accent);
}
.ai-tool-head { display: flex; align-items: center; gap: 6px; }
.ai-tool-icon { font-size: 12px; }
.ai-tool-name { font-size: 12px; font-weight: 600; color: var(--accent); font-family: var(--font-mono); }
.ai-tool-args { margin-top: 4px; display: flex; flex-wrap: wrap; gap: 4px 8px; }
.ai-tool-arg { font-size: 11px; color: var(--fg2); font-family: var(--font-mono); }
.ai-tool-result { margin-top: 6px; font-size: 11px; padding: 4px 6px; border-radius: 3px; }
.ai-tool-result.ok { color: var(--green); background: rgba(63,185,80,0.1); }
.ai-tool-result.err { color: var(--red); background: rgba(248,81,73,0.1); }

/* 输入区 */
.ai-input-area { flex-shrink: 0; border-top: 1px solid var(--border); padding: 8px; background: var(--bg1); }
.ai-input-bar { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.ai-model-select {
    flex: 1; background: var(--input-bg); color: var(--fg); border: 1px solid var(--input-border);
    border-radius: 4px; padding: 3px 6px; font-size: 11px; font-family: inherit;
}
.ai-tools-toggle { font-size: 11px; color: var(--fg2); display: flex; align-items: center; gap: 3px; cursor: pointer; white-space: nowrap; }
.ai-input-row { display: flex; gap: 6px; align-items: flex-end; }
.ai-input {
    flex: 1; resize: none; background: var(--input-bg); color: var(--fg);
    border: 1px solid var(--input-border); border-radius: var(--radius);
    padding: 8px 10px; font-size: 13px; font-family: inherit; line-height: 1.5;
    max-height: 140px; min-height: 38px; outline: none;
}
.ai-input:focus { border-color: var(--focus-border); }
.ai-send-btn {
    width: 38px; height: 38px; flex-shrink: 0; border-radius: var(--radius);
    background: var(--accent); color: #fff; border: none; cursor: pointer;
    display: flex; align-items: center; justify-content: center; transition: var(--transition);
}
.ai-send-btn:hover { opacity: 0.85; }
.ai-send-btn.sending { background: var(--red); }
.ai-send-btn.sending svg { display: none; }
.ai-send-btn.sending::after { content: '■'; font-size: 14px; }

/* 思考按钮 + 强度选择 */
.ai-think-group { display: flex; align-items: center; gap: 2px; }
.ai-think-btn {
    width: 28px; height: 24px; border: 1px solid var(--border); border-radius: 4px 0 0 4px;
    background: transparent; cursor: pointer; font-size: 14px; line-height: 1;
    display: flex; align-items: center; justify-content: center; transition: var(--transition);
}
.ai-think-btn:hover { background: var(--sidebar-hover); }
.ai-think-btn.active { background: var(--accent); border-color: var(--accent); }
.ai-think-effort {
    height: 24px; border: 1px solid var(--border); border-left: none; border-radius: 0 4px 4px 0;
    background: var(--input-bg); color: var(--fg2); font-size: 10px; padding: 0 4px;
    font-family: inherit; cursor: pointer; outline: none;
}
.ai-think-effort:focus { border-color: var(--focus-border); }

/* FIM 代码补全幽灵文字 */
.fim-ghost {
    color: var(--fg3); opacity: 0.5; font-family: var(--font-mono);
    font-size: var(--editor-font-size, 14px); pointer-events: none;
    white-space: pre; z-index: 10;
}

/* 抽屉搜索框 */
.ai-drawer-search {
    width: calc(100% - 16px); margin: 8px; padding: 6px 10px; font-size: 12px;
    background: var(--input-bg); color: var(--fg); border: 1px solid var(--input-border);
    border-radius: var(--radius); outline: none; font-family: inherit;
}
.ai-drawer-search:focus { border-color: var(--focus-border); }

/* 工具卡片展开详情 */
.ai-tool-details { margin-top: 6px; }
.ai-tool-details summary {
    font-size: 11px; color: var(--fg3); cursor: pointer; user-select: none; padding: 2px 0;
}
.ai-tool-details summary:hover { color: var(--accent); }
.ai-tool-detail-block { margin-top: 4px; }
.ai-tool-detail-block b { font-size: 11px; color: var(--fg2); }
.ai-tool-detail-block pre {
    margin: 3px 0 0; padding: 6px 8px; font-size: 11px; line-height: 1.5;
    background: var(--bg1); border: 1px solid var(--border); border-radius: 3px;
    color: var(--fg2); font-family: var(--font-mono);
    max-height: 200px; overflow: auto; white-space: pre-wrap; word-break: break-word;
}

/* 用户中断标记 */
.ai-aborted {
    margin-top: 8px; padding: 6px 10px; background: rgba(248,81,73,0.08);
    border-left: 3px solid var(--red); color: var(--red); font-size: 12px; border-radius: 3px;
}

/* 快速回复按钮（[[选项]] 渲染） */
.ai-quick-reply {
    display: inline-block; margin: 3px 4px 3px 0; padding: 5px 12px;
    font-size: 12px; font-family: inherit; line-height: 1.4;
    background: var(--bg2); color: var(--accent);
    border: 1px solid var(--accent); border-radius: 14px;
    cursor: pointer; transition: var(--transition);
    white-space: nowrap; max-width: 100%; overflow: hidden; text-overflow: ellipsis;
}
.ai-quick-reply:hover {
    background: var(--accent); color: #fff;
    transform: translateY(-1px); box-shadow: 0 2px 6px rgba(47,129,247,0.3);
}
.ai-quick-reply.used {
    opacity: 0.5; cursor: default; pointer-events: none;
    background: var(--bg2); color: var(--fg3); border-color: var(--border);
}

/* ====== 通用右键菜单（VSCode 风格） ====== */
.ctx-menu {
    position: fixed; z-index: 10000; min-width: 200px; padding: 4px 0;
    background: var(--bg2); border: 1px solid var(--border); border-radius: 6px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.35); font-size: 12px; user-select: none;
}
.ctx-menu-item {
    display: flex; justify-content: space-between; align-items: center;
    padding: 5px 12px 5px 16px; color: var(--fg); cursor: pointer;
    white-space: nowrap;
}
.ctx-menu-item:hover { background: var(--accent); color: #fff; }
.ctx-menu-item.disabled { color: var(--fg3); cursor: default; pointer-events: none; opacity: 0.5; }
.ctx-menu-accel { color: var(--fg3); font-size: 11px; margin-left: 24px; }
.ctx-menu-item:hover .ctx-menu-accel { color: rgba(255,255,255,0.8); }
.ctx-menu-sep { height: 1px; background: var(--border); margin: 4px 0; }

/* 多窗口从属模式提示 */
.btn-connect.slave-mode {
    background: var(--bg2); color: var(--fg3); border-color: var(--border);
    cursor: not-allowed; opacity: 0.7;
}

/* 设备树拖拽上传高亮 */
#deviceTree.dev-drop-active {
    outline: 2px dashed var(--accent); outline-offset: -2px;
    background: rgba(47,129,247,0.05);
}
.dev-drop-target {
    background: rgba(47,129,247,0.18) !important;
    outline: 1px dashed var(--accent);
}

/* 终端输入区 */
.term-input-row {
    display: flex; align-items: center; gap: 6px; padding: 4px 8px;
    border-top: 1px solid var(--border); background: var(--bg1); flex-shrink: 0;
}
.term-input-prompt { font-family: var(--font-mono); font-size: 12px; color: var(--accent); user-select: none; }
.term-input {
    flex: 1; background: transparent; color: var(--fg); border: none; outline: none;
    font-family: var(--font-mono); font-size: 12px; padding: 3px 0;
}
.term-input::placeholder { color: var(--fg3); }
.term-input:disabled { opacity: 0.5; }

/* 终端错误行可点击 */
.term-error-link {
    color: var(--red); text-decoration: underline; cursor: pointer;
}
.term-error-link:hover { color: var(--orange); }

/* 编辑器错误行高亮 */
.cm-error-line { background-color: rgba(248,81,73,0.18) !important; }

/* 大纲（Outline） */
#outlineTree { max-height: 240px; }
.outline-empty { padding: 16px 12px; color: var(--fg3); font-size: 12px; text-align: center; }
.outline-item {
    display: flex; align-items: center; gap: 6px; padding: 3px 10px 3px 8px;
    font-size: 12px; color: var(--fg2); cursor: pointer;
}
.outline-item:hover { background: var(--sidebar-hover); color: var(--fg); }
.ol-icon {
    flex-shrink: 0; width: 16px; height: 16px; border-radius: 3px;
    display: inline-flex; align-items: center; justify-content: center;
    font-family: var(--font-mono); font-size: 11px; font-weight: 700;
}
.ol-icon-class { background: rgba(255,140,66,0.2); color: #ff8c42; }
.ol-icon-def { background: rgba(124,77,255,0.2); color: #a78bfa; }
.ol-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ol-line { color: var(--fg3); font-size: 11px; font-family: var(--font-mono); }

/* 项目模板选择器 */
.tpl-picker-box {
    background: var(--bg1); border: 1px solid var(--border); border-radius: 10px;
    box-shadow: var(--shadow-md); max-width: 720px; width: 100%; padding: 18px 20px;
    max-height: 80vh; overflow-y: auto;
}
.tpl-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 10px; margin: 12px 0 16px;
}
.tpl-card {
    display: flex; align-items: center; gap: 10px; padding: 12px;
    background: var(--bg2); border: 1px solid var(--border); border-radius: 8px;
    cursor: pointer; transition: var(--transition);
}
.tpl-card:hover {
    border-color: var(--accent); transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(47,129,247,0.18);
}
.tpl-icon { font-size: 28px; flex-shrink: 0; }
.tpl-info { flex: 1; min-width: 0; }
.tpl-name { font-size: 13px; font-weight: 600; color: var(--fg); margin-bottom: 3px; }
.tpl-desc { font-size: 11px; color: var(--fg3); line-height: 1.4; }

/* AI 输入框 @ 引用下拉 */
.ai-at-mention {
    position: fixed; z-index: 9000; max-height: 240px; overflow-y: auto;
    background: var(--bg2); border: 1px solid var(--border); border-radius: 6px;
    box-shadow: 0 -8px 24px rgba(0,0,0,0.35); padding: 4px 0;
}
.at-item {
    display: flex; flex-direction: column; padding: 6px 12px;
    cursor: pointer; user-select: none;
}
.at-item:hover { background: var(--accent); color: #fff; }
.at-label { font-size: 12px; font-weight: 500; color: var(--accent); font-family: var(--font-mono); }
.at-item:hover .at-label { color: #fff; }
.at-sub { font-size: 10px; color: var(--fg3); margin-top: 2px; }
.at-item:hover .at-sub { color: rgba(255,255,255,0.85); }

/* 主题选择器 */
.theme-picker-box {
    background: var(--bg1); border: 1px solid var(--border); border-radius: 10px;
    box-shadow: var(--shadow-md); max-width: 720px; width: 100%; padding: 18px 20px;
    max-height: 80vh; overflow-y: auto;
}
.theme-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px; margin: 12px 0 16px;
}
.theme-card {
    border: 2px solid var(--border); border-radius: 8px; padding: 8px;
    cursor: pointer; transition: var(--transition); background: var(--bg2);
}
.theme-card:hover { transform: translateY(-2px); }
.theme-card.active { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(47,129,247,0.2); }
.theme-preview {
    border: 1px solid; border-radius: 4px; padding: 6px 8px; height: 70px; overflow: hidden;
    font-family: var(--font-mono); font-size: 11px; line-height: 1.4;
}
.theme-preview-bar { height: 6px; margin: -6px -8px 4px; border-radius: 3px 3px 0 0; }
.theme-preview-line { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.theme-name { font-size: 13px; font-weight: 600; color: var(--fg); margin-top: 6px; }
.theme-kind { font-size: 11px; color: var(--fg3); margin-top: 2px; }

/* 思考块（修复版：仅切换文本不重建 DOM） */
.ai-thinking {
    margin-bottom: 8px; padding: 4px 0;
    border-left: 2px solid var(--border);
}
.ai-thinking summary {
    list-style: none; cursor: pointer; user-select: none;
    padding: 4px 8px; font-size: 11px; color: var(--fg3);
}
.ai-thinking summary::-webkit-details-marker { display: none; }
.ai-thinking summary:hover { color: var(--fg2); }
.ai-thinking[open] summary { color: var(--accent); }
.ai-thinking-content {
    padding: 6px 10px 4px; font-size: 11px; color: var(--fg2);
    white-space: pre-wrap; line-height: 1.6; max-height: 300px; overflow: auto;
}
.ai-thinking-len { color: var(--accent); font-weight: 500; }

/* 状态栏（token 统计） */
.ai-status-bar {
    display: flex; align-items: center; gap: 8px; padding: 4px 6px; min-height: 20px;
    flex-wrap: wrap; border-top: 1px solid var(--border);
}
.ai-stat { font-size: 11px; color: var(--fg2); white-space: nowrap; font-weight: 500; }
.ai-stat-cost { font-size: 11px; color: var(--accent); white-space: nowrap; font-weight: 600; }
.ai-stat-hint { font-size: 9px; color: var(--fg3); font-style: italic; margin-left: auto; }
.ai-thinking-anim { animation: ai-pulse 1.5s ease-in-out infinite; color: var(--fg); font-weight: 500; }
@keyframes ai-pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }

/* 确认弹窗 / 设置弹窗 */
.ai-confirm-overlay {
    position: fixed; inset: 0; z-index: 9999; background: rgba(0,0,0,0.5);
    display: flex; align-items: center; justify-content: center; padding: 20px;
}
.ai-confirm-box, .ai-settings-box {
    background: var(--bg1); border: 1px solid var(--border); border-radius: 10px;
    box-shadow: var(--shadow-md); max-width: 480px; width: 100%; max-height: 80vh;
    overflow-y: auto; padding: 18px 20px;
}
.ai-settings-box { max-width: 420px; }
.ai-confirm-title { font-size: 15px; font-weight: 600; color: var(--fg); margin-bottom: 12px; }
.ai-confirm-body { font-size: 13px; color: var(--fg2); margin-bottom: 16px; }
.ai-confirm-body code { font-family: var(--font-mono); color: var(--accent); }
.ai-confirm-body pre { font-family: var(--font-mono); }
.ai-confirm-actions { display: flex; justify-content: flex-end; gap: 8px; }
.ai-confirm-cancel, .ai-confirm-ok {
    padding: 7px 16px; font-size: 13px; border-radius: var(--radius); cursor: pointer;
    border: 1px solid var(--border); font-family: inherit;
}
.ai-confirm-cancel { background: var(--bg2); color: var(--fg2); }
.ai-confirm-cancel:hover { background: var(--sidebar-hover); color: var(--fg); }
.ai-confirm-ok { background: var(--accent); color: #fff; border-color: var(--accent); }
.ai-confirm-ok:hover { opacity: 0.88; }

.ai-set-field { margin-bottom: 14px; display: flex; flex-direction: column; gap: 5px; }
.ai-set-field > label { font-size: 12px; color: var(--fg2); font-weight: 500; }
.ai-set-field input[type=password], .ai-set-field input[type=text], .ai-set-field select {
    background: var(--input-bg); color: var(--fg); border: 1px solid var(--input-border);
    border-radius: var(--radius); padding: 7px 10px; font-size: 13px; font-family: inherit; outline: none;
}
.ai-set-field input:focus, .ai-set-field select:focus { border-color: var(--focus-border); }
.ai-set-field input[type=range] { accent-color: var(--accent); }
.ai-set-row > label { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--fg); cursor: pointer; }
.ai-set-hint { font-size: 11px; color: var(--fg3); margin-bottom: 16px; line-height: 1.5; }
.ai-set-hint a { color: var(--accent); }

/* ====== 版本历史弹窗 ====== */
.ver-history-box {
    background: var(--bg1); border: 1px solid var(--border); border-radius: 10px;
    box-shadow: var(--shadow-md); max-width: 680px; width: 100%; max-height: 85vh;
    overflow: hidden; display: flex; flex-direction: column; padding: 0;
}
.ver-history-box .ai-confirm-title { padding: 16px 20px 10px; margin: 0; flex-shrink: 0; }
.ver-list {
    max-height: 240px; overflow-y: auto; border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
.ver-item {
    display: flex; align-items: center; gap: 8px; padding: 8px 20px;
    font-size: 12px; border-bottom: 1px solid var(--border);
}
.ver-item:hover { background: var(--sidebar-hover); }
.ver-time { color: var(--fg); font-family: var(--font-mono); min-width: 120px; }
.ver-source { color: var(--fg2); min-width: 50px; }
.ver-size { color: var(--fg3); flex: 1; }
.ver-btn {
    padding: 3px 8px; font-size: 11px; border: 1px solid var(--border); border-radius: 3px;
    background: var(--bg2); color: var(--fg2); cursor: pointer; font-family: inherit;
}
.ver-btn:hover { background: var(--sidebar-hover); color: var(--fg); }
.ver-btn-restore { border-color: var(--accent); color: var(--accent); }
.ver-btn-restore:hover { background: var(--accent); color: #fff; }
.ver-diff-area {
    flex: 1; overflow-y: auto; padding: 10px 16px; min-height: 0;
    font-family: var(--font-mono); font-size: 12px; line-height: 1.6;
    background: var(--bg0);
}
.ver-diff-header {
    font-size: 11px; color: var(--fg3); margin-bottom: 8px; padding-bottom: 6px;
    border-bottom: 1px solid var(--border);
}
.vdiff-add { color: var(--green); background: rgba(63,185,80,0.08); }
.vdiff-del { color: var(--red); background: rgba(248,81,73,0.08); }
.vdiff-same { color: var(--fg3); }
.ver-history-box .ai-confirm-actions { padding: 12px 20px; flex-shrink: 0; border-top: 1px solid var(--border); }

.fb-header {
    padding: 4px 10px; font-size: 11px; font-weight: 700; color: var(--fg3);
    text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between; flex-shrink: 0;
}
.fb-actions { display: flex; align-items: center; gap: 4px; }
.fb-zoom-select {
    background: var(--input-bg); color: var(--fg); border: 1px solid var(--input-border);
    border-radius: 3px; padding: 1px 4px; font-size: 11px; font-family: inherit;
}

.fb-canvas-wrap {
    flex: 1; display: flex; align-items: center; justify-content: center;
    background: var(--bg0); overflow: hidden; position: relative; min-height: 100px;
}
#fbCanvas { max-width: 100%; max-height: 100%; object-fit: contain; display: none; }
.fb-placeholder {
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    color: var(--fg3); font-size: 12px; text-align: center; padding: 20px;
}

.fb-info {
    padding: 4px 10px; font-size: 11px; color: var(--fg3); border-top: 1px solid var(--border);
    display: flex; justify-content: space-between; flex-shrink: 0;
}

/* 直方图 */
.hist-section {
    border-top: 1px solid var(--border); flex-shrink: 0;
}
.hist-header {
    padding: 4px 10px; font-size: 11px; font-weight: 700; color: var(--fg3);
    text-transform: uppercase; letter-spacing: 0.5px;
    display: flex; align-items: center; justify-content: space-between;
}
.hist-mode-select {
    background: var(--input-bg); color: var(--fg); border: 1px solid var(--input-border);
    border-radius: 3px; padding: 1px 4px; font-size: 11px; font-family: inherit;
}

/* 直方图 - OpenMV 风格三通道分离 */
.hist-container { padding: 0; }
.hist-ch { border-bottom: 1px solid var(--border); padding: 6px 10px 4px; }
.hist-ch:last-child { border-bottom: none; }
.hist-chart-row { display: flex; align-items: center; gap: 6px; }
.hist-ch-label { font-size: 12px; font-weight: 700; width: 14px; text-align: center; }
.hist-canvas-wrap { flex: 1; min-width: 0; overflow: hidden; border: 1px solid var(--border); border-radius: 2px; background: #000; }
.hist-canvas-wrap canvas { width: 100%; height: 60px; display: block; }
.hist-axis {
    display: flex; justify-content: space-between; padding: 2px 20px 0;
    font-size: 9px; color: var(--fg3);
}
.hist-stats { padding: 3px 0 0; }
.hist-stats-row {
    display: flex; gap: 4px; font-size: 10px; color: var(--fg2); line-height: 1.6;
}
.hist-stats-row span { flex: 1; white-space: nowrap; }
.hist-stats-row b { color: var(--fg); font-weight: 600; margin-left: 3px; }

/* ====== 状态栏 ====== */
.status-bar {
    height: var(--status-bar-height); background: var(--bg1); border-top: 1px solid var(--border);
    padding: 0 10px; display: flex; align-items: center; justify-content: space-between;
    font-size: 12px; color: var(--fg2); flex-shrink: 0;
}
.status-left, .status-right { display: flex; align-items: center; gap: 12px; }
.status-item { display: flex; align-items: center; gap: 4px; }
.status-dot-sm {
    width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0;
}
.status-dot-sm.disconnected { background: var(--red); }
.status-dot-sm.connected { background: var(--green); box-shadow: 0 0 6px var(--green); }

/* ====== 通用按钮 ====== */
.btn-icon {
    background: none; border: none; color: var(--fg3); cursor: pointer;
    padding: 3px; border-radius: 3px; display: flex; align-items: center; justify-content: center;
    transition: all var(--transition);
}
.btn-icon:hover { color: var(--accent); background: var(--bg2); }
.btn-icon:disabled { opacity: 0.35; cursor: not-allowed; pointer-events: none; }

.btn {
    padding: 6px 16px; border-radius: var(--radius); font-size: 13px; cursor: pointer;
    border: 1px solid var(--border); font-family: inherit; transition: all var(--transition);
}
.btn-secondary { background: var(--btn-bg); color: var(--btn-fg); }
.btn-secondary:hover { background: var(--btn-hover-bg); }
.btn-danger { background: var(--red); color: #fff; border-color: var(--red); }
.btn-danger:hover { opacity: 0.9; }

/* ====== 模态框 ====== */
.modal-overlay {
    position: fixed; inset: 0; background: rgba(1,4,9,0.8); z-index: 100000;
    display: none; align-items: center; justify-content: center;
}
.modal-overlay.show { display: flex; }
.modal {
    background: var(--bg1); border: 1px solid var(--border); border-radius: 12px;
    padding: 24px; max-width: 420px; width: 90%; box-shadow: var(--shadow-md);
}
.modal-title { font-size: 16px; margin-bottom: 12px; }
.modal-message { font-size: 14px; color: var(--fg2); margin-bottom: 20px; line-height: 1.6; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; }

/* ====== 颜色阈值编辑器 ====== */
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { opacity: 0.9; }

.thr-overlay {
    position: fixed; inset: 0; background: rgba(1,4,9,0.8); z-index: 110;
    display: none; align-items: center; justify-content: center;
}
.thr-overlay.show { display: flex; }
.thr-dialog {
    background: var(--bg1); border: 1px solid var(--border); border-radius: 12px;
    width: min(760px, 94vw); max-height: 92vh; overflow-y: auto;
    box-shadow: var(--shadow-md); display: flex; flex-direction: column;
}
.thr-head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 18px; border-bottom: 1px solid var(--border);
}
.thr-title { font-size: 15px; font-weight: 600; }

.thr-preview { display: flex; gap: 14px; padding: 16px 18px; }
.thr-pane { flex: 1; display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.thr-pane-label { font-size: 12px; color: var(--fg2); }
.thr-canvas-box {
    background: var(--bg0); border: 1px solid var(--border); border-radius: var(--radius);
    aspect-ratio: 4 / 3; display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.thr-canvas-box canvas { max-width: 100%; max-height: 100%; image-rendering: auto; }
.thr-bin-box { background: #000; }

.thr-modes { display: flex; gap: 8px; padding: 0 18px 12px; }
.thr-mode-btn {
    padding: 5px 16px; border-radius: var(--radius); font-size: 13px; cursor: pointer;
    border: 1px solid var(--border); background: var(--btn-bg); color: var(--btn-fg);
    font-family: inherit; transition: all var(--transition);
}
.thr-mode-btn:hover { background: var(--btn-hover-bg); }
.thr-mode-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.thr-sliders { padding: 0 18px 8px; display: flex; flex-direction: column; gap: 14px; }
.thr-row { display: flex; align-items: center; gap: 12px; }
.thr-row-label { width: 38px; font-size: 13px; color: var(--fg); font-weight: 600; }
.thr-dual { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.thr-dual input[type="range"] {
    width: 100%; height: 4px; -webkit-appearance: none; appearance: none;
    background: var(--bg3); border-radius: 2px; outline: none; cursor: pointer;
}
.thr-dual input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none; appearance: none; width: 14px; height: 14px; border-radius: 50%;
    background: var(--accent); cursor: pointer; border: 2px solid var(--bg1);
}
.thr-dual input[type="range"]::-moz-range-thumb {
    width: 14px; height: 14px; border-radius: 50%; background: var(--accent);
    cursor: pointer; border: 2px solid var(--bg1);
}
.thr-dual .thr-max::-webkit-slider-thumb { background: var(--orange); }
.thr-dual .thr-max::-moz-range-thumb { background: var(--orange); }
.thr-row-val { width: 86px; text-align: right; font-size: 12px; color: var(--fg2); font-family: var(--font-mono); }

.thr-foot {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 14px 18px; border-top: 1px solid var(--border); flex-wrap: wrap;
}
.thr-output {
    flex: 1; min-width: 200px; font-family: var(--font-mono); font-size: 13px;
    color: var(--accent); background: var(--bg0); padding: 8px 12px;
    border-radius: var(--radius); border: 1px solid var(--border); user-select: all;
}
.thr-foot-actions { display: flex; gap: 8px; }

/* ====== 帧缓冲交互工具 ====== */
.fb-overlay-canvas { image-rendering: auto; }
.fb-tool-info {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 12px; font-family: var(--font-mono); color: var(--fg2); flex-wrap: wrap;
}
.fbt-coord { color: var(--fg); font-weight: 600; }
.fbt-rgb { font-size: 16px; line-height: 1; }
.fbt-copy-btn {
    padding: 2px 8px; font-size: 11px; border-radius: 3px; cursor: pointer;
    border: 1px solid var(--border); background: var(--btn-bg); color: var(--btn-fg);
    font-family: inherit;
}
.fbt-copy-btn:hover { background: var(--btn-hover-bg); }
.fbt-insert-btn { border-color: var(--accent); color: var(--accent); }
.btn-icon.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-icon.recording { background: var(--red); border-color: var(--red); animation: rec-pulse 1s infinite; }
@keyframes rec-pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }

/* ====== 查找/替换栏 ====== */
.find-bar {
    display: flex; flex-direction: column; gap: 4px;
    padding: 6px 10px; background: var(--bg2); border-bottom: 1px solid var(--border);
}
.find-row { display: flex; align-items: center; gap: 6px; }
.find-input {
    flex: 1; min-width: 120px; padding: 4px 8px; font-size: 13px;
    background: var(--input-bg); color: var(--fg); border: 1px solid var(--input-border);
    border-radius: var(--radius); font-family: var(--font-mono); outline: none;
}
.find-input:focus { border-color: var(--focus-border); }
.find-opt { display: flex; align-items: center; gap: 2px; font-size: 12px; color: var(--fg2); cursor: pointer; }
.find-opt input { margin: 0; cursor: pointer; }
.find-opt span {
    padding: 2px 5px; border-radius: 3px; border: 1px solid var(--border);
    font-family: var(--font-mono); font-size: 11px;
}
.find-opt input:checked + span { background: var(--accent); color: #fff; border-color: var(--accent); }
.find-btn {
    padding: 3px 8px; font-size: 12px; border-radius: 3px; cursor: pointer;
    border: 1px solid var(--border); background: var(--btn-bg); color: var(--btn-fg);
    font-family: inherit; line-height: 1;
}
.find-btn:hover { background: var(--btn-hover-bg); }
.find-close { font-size: 16px; font-weight: bold; padding: 2px 6px; }
.find-count { font-size: 11px; color: var(--fg2); min-width: 70px; text-align: center; font-family: var(--font-mono); }

/* ====== 编辑器设置面板 ====== */
.settings-panel {
    position: fixed; top: 46px; right: 12px; z-index: 90;
    background: var(--bg1); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 14px 18px; width: 260px; box-shadow: var(--shadow-md);
    display: none; flex-direction: column; gap: 12px;
}
.settings-panel.show { display: flex; }
.settings-title { font-size: 13px; font-weight: 700; color: var(--fg); margin-bottom: 4px; }
.settings-row { display: flex; align-items: center; gap: 8px; }
.settings-row label { font-size: 12px; color: var(--fg2); min-width: 50px; }
.settings-row input[type="range"] { flex: 1; height: 4px; }
.settings-row span { font-size: 12px; color: var(--fg); font-family: var(--font-mono); min-width: 36px; }
.settings-row select {
    flex: 1; padding: 3px 6px; font-size: 12px; border-radius: 3px;
    background: var(--input-bg); color: var(--fg); border: 1px solid var(--input-border); font-family: inherit;
}
.settings-tip {
    font-size: 11px; color: var(--fg3); padding: 4px 0; line-height: 1.5;
    border-top: 1px solid var(--border); margin-top: 4px;
}
.settings-tip a { color: var(--accent); text-decoration: none; }
.settings-tip a:hover { text-decoration: underline; }

/* ====== 更新记录浮层 ====== */
.version-link {
    cursor: pointer; color: var(--accent); font-weight: 600;
    transition: opacity 0.15s;
}
.version-link:hover { opacity: 0.7; text-decoration: underline; }

.changelog-overlay {
    position: fixed; inset: 0; background: rgba(1,4,9,0.8); z-index: 120;
    display: none; align-items: center; justify-content: center;
}
.changelog-overlay.show { display: flex; }
.changelog-dialog {
    background: var(--bg1); border: 1px solid var(--border); border-radius: 12px;
    width: min(640px, 90vw); max-height: 80vh; display: flex; flex-direction: column;
    box-shadow: var(--shadow-md);
}
.changelog-head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 20px; border-bottom: 1px solid var(--border);
}
.changelog-title { font-size: 15px; font-weight: 700; color: var(--fg); }
.changelog-close { font-size: 20px; background: transparent; border: none; color: var(--fg2); cursor: pointer; padding: 0 6px; border-radius: 4px; }
.changelog-close:hover { background: var(--btn-hover-bg); color: var(--fg); }
.changelog-body {
    padding: 16px 20px; overflow-y: auto; font-size: 13px; line-height: 1.7; color: var(--fg);
}
.changelog-body h2 { font-size: 16px; color: var(--accent); margin: 16px 0 8px; padding-bottom: 6px; border-bottom: 1px solid var(--border); }
.changelog-body h3 { font-size: 14px; color: var(--fg); margin: 14px 0 6px; }
.changelog-body h4 { font-size: 13px; color: var(--fg2); margin: 10px 0 4px; }
.changelog-body ul { padding-left: 20px; margin: 4px 0; }
.changelog-body li { margin: 3px 0; color: var(--fg); }
.changelog-body code { background: var(--bg2); padding: 1px 5px; border-radius: 3px; font-family: var(--font-mono); font-size: 12px; color: var(--accent); }
.changelog-body hr { border: none; border-top: 1px solid var(--border); margin: 16px 0; }

/* ====== Toast ====== */
.toast-container {
    position: fixed; top: 16px; right: 16px; z-index: 200;
    display: flex; flex-direction: column; gap: 8px;
}
.toast {
    background: var(--bg1); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 10px 16px; font-size: 13px; box-shadow: var(--shadow-md);
    animation: toastIn 0.3s ease; max-width: 360px;
}
.toast.success { border-left: 3px solid var(--green); }
.toast.error { border-left: 3px solid var(--red); }
.toast.warning { border-left: 3px solid var(--yellow); }
.toast.info { border-left: 3px solid var(--accent); }
@keyframes toastIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: none; } }

/* ====== 备案页脚 ====== */
.site-footer {
    background: var(--bg1); border-top: 1px solid var(--border);
    padding: 6px 16px; text-align: center; font-size: 11px; color: var(--fg3); flex-shrink: 0;
}
.site-footer-inner { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 4px; }
.site-footer a { color: var(--fg3); text-decoration: none; }
.site-footer a:hover { color: var(--accent); }
.footer-sep { margin: 0 2px; opacity: 0.4; }