/* ========================================
   EMB 硬件调试工具箱 - 样式覆盖
   基于 common/style.css，覆盖配色和添加 EMB 专属组件样式
   ======================================== */

/* ===== 覆盖 common --tb-* 变量为 EMB 紫色主题 ===== */
:root {
    --tb-primary: #7b6bf0;
    --tb-secondary: #9083f7;
    --tb-accent: #7b6bf0;
    --tb-bg: #0b0d12;
    --tb-surface: rgba(25, 29, 43, 0.96);
    --tb-surface-hover: rgba(35, 40, 58, 0.8);
    --tb-border: rgba(42, 48, 69, 0.8);
    --tb-text: #eceef4;
    --tb-text-secondary: #9ca3b8;
    --tb-text-muted: #5b637a;
    --tb-success: #00d9c0;
    --tb-warning: #f0c75e;
    --tb-error: #ff5e78;
    --tb-info: #6bb5ff;
    --tb-radius: 12px;
    --tb-radius-sm: 8px;
    --tb-radius-lg: 16px;
    --tb-sidebar-width: 255px;
    --tb-topbar-height: 58px;
    --tb-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);

    /* EMB 旧变量名别名（兼容现有组件样式） */
    --accent: var(--tb-primary);
    --accent-hover: var(--tb-secondary);
    --accent-glow: rgba(123, 107, 240, 0.3);
    --bg-primary: var(--tb-bg);
    --bg-secondary: #141620;
    --bg-card: #191d2b;
    --bg-hover: #23283a;
    --bg-input: #0f111a;
    --border-color: rgba(42, 48, 69, 0.8);
    --border-light: #3a4160;
    --text-primary: var(--tb-text);
    --text-secondary: var(--tb-text-secondary);
    --text-muted: var(--tb-text-muted);
    --success: var(--tb-success);
    --success-bg: rgba(0, 217, 192, 0.12);
    --danger: var(--tb-error);
    --danger-bg: rgba(255, 94, 120, 0.12);
    --warning: var(--tb-warning);
    --warning-bg: rgba(240, 199, 94, 0.12);
    --info: var(--tb-info);
    --info-bg: rgba(107, 181, 255, 0.12);
    --radius-sm: var(--tb-radius-sm);
    --radius-md: var(--tb-radius);
    --radius-lg: var(--tb-radius-lg);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.35);
    --shadow-md: 0 4px 24px rgba(0,0,0,0.45);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.55);
    --sidebar-width: var(--tb-sidebar-width);
    --topbar-height: var(--tb-topbar-height);
    --transition: var(--tb-transition);

    /* 波形显示专属 */
    --waveform-bg: #0a0c12;
    --waveform-grid: #1e2235;
    --waveform-line: #6c5ce7;
    --waveform-fill-start: rgba(108,92,231,0.25);
    --waveform-fill-end: rgba(108,92,231,0.02);
    --waveform-highlight: #00cec9;
}

/* EMB Light mode 覆盖（补全 :root 全部主题变量） */
body.light-mode {
    --tb-bg: #f5f7fa;
    --tb-surface: rgba(255,255,255,0.7);
    --tb-surface-hover: rgba(230,230,230,0.9);
    --tb-border: rgba(0,0,0,0.08);
    --tb-text: #1a1a2e;
    --tb-text-secondary: #4a5568;
    --tb-text-muted: #718096;
    --tb-primary: #5a4bd8;
    --tb-secondary: #7468e8;
    --tb-accent: #5a4bd8;
    --tb-success: #0a9e8d;
    --tb-warning: #b8860b;
    --tb-error: #d63a55;
    --tb-info: #2b7fd0;
    --bg-primary: #f5f7fa;
    --bg-secondary: #e8ecf1;
    --bg-card: #ffffff;
    --bg-hover: #f0f0f0;
    --bg-input: #f8f9fa;
    --border-color: rgba(0,0,0,0.08);
    --border-light: rgba(0,0,0,0.15);
    --accent: #5a4bd8;
    --accent-hover: #4a3bc8;
    --accent-glow: rgba(123, 107, 240, 0.15);
    --success-bg: rgba(10, 158, 141, 0.1);
    --danger-bg: rgba(214, 58, 85, 0.08);
    --warning-bg: rgba(184, 134, 11, 0.1);
    --info-bg: rgba(43, 127, 208, 0.1);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 24px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
    --waveform-bg: #ffffff;
    --waveform-grid: #e2e6ec;
    --waveform-line: #5a4bd8;
    --waveform-fill-start: rgba(90,75,216,0.2);
    --waveform-fill-end: rgba(90,75,216,0.02);
    --waveform-highlight: #009e8d;
}

/* EMB 使用固定侧边栏布局，覆盖 common 的 flex 布局 */
body { overflow-x: hidden; }

/* ========== 侧边栏 ========== */
.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0; top: 0;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform 0.3s ease;
}
.sidebar-header {
    padding: 16px 18px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    display: flex; align-items: center; gap: 10px;
    font-size: 1.15rem; font-weight: 700;
    color: var(--text-primary);
}
.logo i {
    font-size: 1.4rem; color: var(--accent);
    filter: drop-shadow(0 0 8px var(--accent-glow));
}
.sidebar-toggle {
    background: none; border: none; color: var(--text-muted); cursor: pointer;
    padding: 4px 8px; border-radius: var(--radius-sm);
    transition: var(--transition); font-size: 1rem;
}
.sidebar-toggle:hover { color: var(--text-primary); background: var(--bg-hover); }

.nav-menu {
    flex: 1; overflow-y: auto; padding: 10px 0;
}
.nav-section { margin-bottom: 8px; }
.nav-section-title {
    font-size: 0.68rem; text-transform: uppercase; letter-spacing: 1.5px;
    color: var(--text-muted); padding: 10px 18px 6px; font-weight: 600;
}
.nav-item {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 18px; margin: 2px 8px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none; transition: var(--transition);
    cursor: pointer; position: relative;
    white-space: nowrap;
}
.nav-item i {
    font-size: 1.05rem; width: 22px; text-align: center; flex-shrink: 0;
    transition: transform 0.2s ease;
}
.nav-item span { font-weight: 500; }
.nav-item small {
    margin-left: auto; font-size: 0.65rem; color: var(--text-muted);
    opacity: 0; transition: opacity 0.2s;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item:hover i { transform: scale(1.1); }
.nav-item:hover small { opacity: 1; }
.nav-item.active {
    background: linear-gradient(135deg, rgba(123,107,240,0.15), rgba(123,107,240,0.04));
    color: var(--accent);
    box-shadow: inset 3px 0 0 var(--accent);
}
.nav-item.active small { opacity: 1; color: var(--accent); }

.sidebar-footer {
    padding: 12px 18px; border-top: 1px solid var(--border-color);
    text-align: center;
}
.version { font-size: 0.72rem; color: var(--text-muted); }

/* ========== 主内容区 ========== */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1; min-height: 100vh;
    display: flex; flex-direction: column;
    transition: margin-left 0.3s ease;
}

.topbar {
    height: var(--topbar-height);
    min-height: var(--topbar-height);
    padding: 0 24px;
    display: flex; align-items: center; gap: 16px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
    position: sticky; top: 0; z-index: 50;
    backdrop-filter: blur(12px);
}
.mobile-toggle { display: none; background: none; border: none; color: var(--text-primary); cursor: pointer; font-size: 1.2rem; }
.page-title { font-size: 1.15rem; font-weight: 600; flex: 1; }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.locale-switch {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
}
.locale-btn {
    min-width: 42px;
    padding: 6px 10px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 999px;
    cursor: pointer;
    font-size: 0.78rem;
    font-weight: 700;
    transition: var(--transition);
}
.locale-btn.active {
    background: linear-gradient(135deg, rgba(123,107,240,0.95), rgba(108,92,231,0.75));
    color: #fff;
    box-shadow: 0 6px 18px rgba(123,107,240,0.28);
}
.locale-btn:hover:not(.active) { color: var(--text-primary); background: var(--bg-hover); }

.connection-status {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 5px 14px; border-radius: 20px;
    font-size: 0.82rem; font-weight: 500;
    background: var(--bg-card); border: 1px solid var(--border-color);
}
.connection-status i { font-size: 0.55rem; color: var(--danger); }
.connection-status.connected i { color: var(--success); animation: pulse 2s infinite; }
@keyframes pulse {
    0%,100% { opacity: 1; } 50% { opacity: 0.4; }
}

.module-container {
    flex: 1; padding: 20px 24px; overflow-y: auto;
}
.module-panel { display: none; animation: fadeIn 0.3s ease; }
.module-panel.active { display: block; }

/* ========== 卡片通用 ========== */
.config-card, .send-card, .console-card, .tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}
.config-card:hover, .send-card:hover, .console-card:hover, .tool-card:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow-md);
}
.config-card h3, .send-card h3, .tool-card h3, .console-header h3 {
    font-size: 0.95rem; font-weight: 600; margin-bottom: 14px;
    display: flex; align-items: center; gap: 8px;
    color: var(--text-primary);
}
.config-card h3 i, .send-card h3 i, .tool-card h3 i { color: var(--accent); }

/* ========== 总览面板 ========== */
.overview-hero {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: center;
    padding: 24px 26px;
    margin-bottom: 16px;
    border-radius: 20px;
    border: 1px solid rgba(123,107,240,0.16);
    background:
        radial-gradient(circle at top right, rgba(123,107,240,0.18), transparent 40%),
        linear-gradient(135deg, rgba(25,29,43,0.96), rgba(15,17,26,0.96));
    box-shadow: var(--shadow-md);
}
.overview-eyebrow {
    margin-bottom: 8px;
    color: var(--accent);
    font-size: 0.76rem;
    letter-spacing: 1.4px;
    text-transform: uppercase;
    font-weight: 700;
}
.overview-hero h3 {
    font-size: 1.6rem;
    margin-bottom: 8px;
}
.overview-description {
    max-width: 760px;
    color: var(--text-secondary);
    font-size: 0.92rem;
}
.overview-badges {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
}
.api-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: rgba(255,255,255,0.04);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 600;
}
.api-badge.ok {
    color: var(--success);
    border-color: rgba(0, 217, 192, 0.28);
    background: rgba(0, 217, 192, 0.08);
}
.api-badge.no {
    color: var(--danger);
    border-color: rgba(255, 94, 120, 0.28);
    background: rgba(255, 94, 120, 0.08);
}
.overview-toolbar {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 16px;
}
.overview-search {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.overview-search label {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 700;
    letter-spacing: 0.6px;
    text-transform: uppercase;
}
.overview-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.overview-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 16px;
}
.overview-stat-card {
    padding: 16px 18px;
    border-radius: 18px;
    border: 1px solid var(--border-color);
    background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
    box-shadow: var(--shadow-sm);
}
.overview-stat-card span {
    display: block;
    margin-bottom: 6px;
    color: var(--text-secondary);
    font-size: 0.8rem;
}
.overview-stat-card strong {
    font-size: 1.55rem;
    font-weight: 800;
}
.overview-stat-card.accent strong { color: var(--accent); }
.overview-stat-card.success strong { color: var(--success); }
.overview-stat-card.info strong { color: var(--info); }
.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
}
.overview-card {
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-height: 214px;
    padding: 18px;
    border-radius: 18px;
    border: 1px solid var(--border-color);
    background:
        linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01)),
        var(--bg-card);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.overview-card:hover {
    transform: translateY(-3px);
    border-color: var(--border-light);
    box-shadow: var(--shadow-md);
}
.overview-card.active {
    border-color: rgba(123,107,240,0.55);
    box-shadow: 0 10px 28px rgba(123,107,240,0.12);
}
.overview-card-header {
    display: flex;
    align-items: center;
    gap: 14px;
}
.overview-card-header h4 {
    font-size: 1rem;
    margin-bottom: 2px;
}
.overview-card-header p {
    color: var(--text-muted);
    font-size: 0.82rem;
}
.overview-card-icon {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: rgba(123,107,240,0.14);
    color: var(--accent);
    font-size: 1.2rem;
    flex-shrink: 0;
}
.overview-card-desc {
    color: var(--text-secondary);
    font-size: 0.86rem;
    flex: 1;
}
.overview-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}
.overview-chip {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(123,107,240,0.09);
    color: var(--accent);
    border: 1px solid rgba(123,107,240,0.18);
    font-size: 0.76rem;
    font-weight: 700;
}
.empty-tip {
    color: var(--text-secondary);
    text-align: center;
}

.panel-row { display: grid; grid-template-columns: 380px 1fr; gap: 16px; align-items: stretch; margin-bottom: 16px; }
.panel-row > .config-card,
.panel-row > .send-card,
.panel-row > .console-card,
.panel-row > .tool-card,
.panel-row > .waveform-card {
    margin-top: 0;
    margin-bottom: 0;
    height: 100%;
}

/* USB/HID 配置卡片按钮底部对齐 */
#webusb-tab .config-card,
#webhid-tab .config-card {
    display: flex;
    flex-direction: column;
}
#webusb-tab .config-card .btn-group,
#webhid-tab .config-card .btn-group {
    margin-top: auto;
}

/* ========== 表单控件 ========== */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full-width { grid-column: 1 / -1; }
.form-group label {
    font-size: 0.76rem; font-weight: 600; color: var(--text-secondary);
    text-transform: uppercase; letter-spacing: 0.6px;
}
.form-input, .form-textarea, select.form-input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.88rem;
    font-family: inherit;
    transition: var(--transition);
    outline: none;
}
.form-input:hover, .form-textarea:hover, select.form-input:hover {
    border-color: var(--border-light);
}
.form-input:focus, .form-textarea:focus, select.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-textarea { resize: vertical; min-height: 60px; }
.input-sm {
    width: auto; padding: 6px 12px;
    font-size: 0.82rem; background: var(--bg-input);
    border: 1px solid var(--border-color); border-radius: var(--radius-sm);
    color: var(--text-primary); outline: none;
    transition: var(--transition);
}
.input-sm:hover { border-color: var(--border-light); }
.input-sm:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }

/* Custom file select wrapper */
.file-select-wrapper { display: flex; align-items: center; gap: 10px; }
.file-select-hidden { position: absolute; width: 0; height: 0; opacity: 0; overflow: hidden; }
.file-select-name { font-size: 0.85rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 260px; }
.mono { font-family: 'Cascadia Code', 'Fira Code', 'JetBrains Mono', Consolas, monospace; }

/* ========== 按钮 ========== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 9px 18px; border: none; border-radius: var(--radius-sm);
    font-size: 0.85rem; font-weight: 600; cursor: pointer;
    transition: var(--transition); white-space: nowrap;
    font-family: inherit; position: relative; overflow: hidden;
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); box-shadow: 0 4px 18px var(--accent-glow); transform: translateY(-1px); }
.btn-primary:active:not(:disabled) { transform: translateY(0); }
.btn-success { background: var(--success); color: #000; }
.btn-success:hover:not(:disabled) { filter: brightness(1.1); transform: translateY(-1px); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover:not(:disabled) { filter: brightness(1.1); transform: translateY(-1px); }
.btn-warning { background: var(--warning); color: #000; }
.btn-warning:hover:not(:disabled) { filter: brightness(1.1); transform: translateY(-1px); }
.btn-secondary { background: var(--bg-hover); color: var(--text-primary); border: 1px solid var(--border-color); }
.btn-secondary:hover:not(:disabled) { background: var(--border-color); border-color: var(--border-light); transform: translateY(-1px); }
.btn-outline {
    background: transparent; color: var(--text-secondary);
    border: 1px solid var(--border-color);
}
.btn-outline:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
.btn-sm { padding: 6px 12px; font-size: 0.78rem; }
.btn-lg { padding: 12px 28px; font-size: 0.95rem; }
.btn-block { width: 100%; }

.btn-group { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.btn-group-right { margin-left: auto; }

/* ========== 复选框/单选框 ========== */
.checkbox-label {
    display: inline-flex; align-items: center; gap: 5px;
    font-size: 0.82rem; color: var(--text-secondary); cursor: pointer;
    user-select: none;
}
.checkbox-label input[type="checkbox"] {
    accent-color: var(--accent); width: 14px; height: 14px; cursor: pointer;
}
.radio-label { display: inline-flex; align-items: center; gap: 4px; font-size: 0.82rem; color: var(--text-secondary); cursor: pointer; margin-right: 12px; }
.radio-label input { accent-color: var(--accent); margin-right: 2px; }
.checkbox-group-sm { display: flex; align-items: center; gap: 8px; }
.checkbox-group-sm label { font-size: 0.78rem; color: var(--text-secondary); }

/* ========== 发送区域 ========== */
.send-card { margin-top: 16px; }
.send-options {
    display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
    margin-bottom: 12px; padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}
.send-textarea {
    width: 100%; min-height: 80px; max-height: 160px;
    padding: 12px 14px;
    background: var(--bg-input); border: 1px solid var(--border-color);
    border-radius: var(--radius-sm); color: var(--text-primary);
    font-family: 'Cascadia Code', 'Fira Code', Consolas, monospace;
    font-size: 0.86rem; resize: vertical; outline: none;
    transition: var(--transition);
    margin-bottom: 12px;
    line-height: 1.6;
}
.send-textarea:hover { border-color: var(--border-light); }
.send-textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }

/* ========== 串口工作区 ========== */
.serial-workspace {
    display: grid;
    grid-template-columns: 340px minmax(320px, 1fr) minmax(320px, 1.15fr);
    grid-template-rows: minmax(220px, auto) minmax(250px, 1fr);
    gap: 14px;
    min-height: calc(100vh - 150px);
}
.serial-workspace .serial-card-shell {
    margin-top: 0;
    margin-bottom: 0;
    height: 100%;
    overflow: hidden;
}
.serial-config-card { grid-column: 1; grid-row: 1 / span 2; }
.serial-wave-card { grid-column: 2 / 4; grid-row: 1; }
.serial-send-card { grid-column: 2; grid-row: 2; }
.serial-console-card { grid-column: 3; grid-row: 2; }
.serial-form-grid { grid-template-columns: 1fr 1fr; }
.serial-inline-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 12px;
}
.serial-inline-tip {
    color: var(--text-muted);
    font-size: 0.76rem;
}
.serial-hint-text {
    color: var(--text-muted);
    font-size: 0.74rem;
    margin-top: 4px;
    display: block;
    line-height: 1.5;
}
.serial-send-card {
    display: flex;
    flex-direction: column;
}
.serial-send-card h3,
.serial-send-options,
.serial-send-card .btn-group {
    flex-shrink: 0;
}
.serial-send-options {
    gap: 10px;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}
.serial-auto-interval {
    width: 72px;
    margin-left: 4px;
}
.serial-send-textarea {
    flex: 1;
    min-height: 120px;
    height: auto;
    resize: none;
    margin-bottom: 0;
}
.serial-console-card {
    display: flex;
    flex-direction: column;
}
.serial-console-card h3 {
    flex-shrink: 0;
}
.serial-console-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    padding-bottom: 8px;
    margin-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}
.serial-console-output {
    flex: 1;
    min-height: 120px;
    height: auto;
}
.serial-console-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: 12px;
    flex-shrink: 0;
    flex-wrap: wrap;
}
.serial-console-stats {
    display: flex;
    gap: 16px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}
.serial-console-stats strong {
    color: var(--accent);
}
.serial-canvas-wrap {
    height: 220px;
}
.firmware-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-bottom: 12px;
}

/* ========== 控制台输出 ========== */
.console-card { margin-top: 16px; }
.console-header {
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 10px;
    margin-bottom: 12px;
}
.console-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.console-actions-right { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-left: auto; }
.console-output {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    font-family: 'Cascadia Code', 'Fira Code', Consolas, monospace;
    font-size: 0.84rem; line-height: 1.7;
    max-height: 260px; min-height: 120px; overflow-y: auto;
    word-break: break-all; white-space: pre-wrap;
    color: var(--text-primary);
}
.console-stats {
    display: flex; gap: 20px; margin-top: 10px;
    font-size: 0.8rem; color: var(--text-secondary);
}
.console-stats strong { color: var(--accent); }
.log-line { margin-bottom: 2px; }
.log-time { color: var(--text-muted); }
.log-rx { color: var(--success); }
.log-tx { color: var(--info); }
.log-info { color: var(--warning); }
.log-error { color: var(--danger); }
.log-hex { color: #a29bfe; }

/* ========== 设备信息 ========== */
.device-info {
    margin-top: 12px; padding: 10px 14px;
    background: var(--bg-input); border-radius: var(--radius-sm);
    border-left: 3px solid var(--accent);
}
.device-info p { font-size: 0.84rem; margin-bottom: 4px; }
.device-info strong { color: var(--accent); }
.hidden { display: none !important; }
.connection-info { display: flex; gap: 16px; margin-top: 10px; font-size: 0.84rem; color: var(--text-secondary); }
.input-with-btn .connection-info { margin-left: auto; margin-top: 0; white-space: nowrap; flex-shrink: 0; }
.status-connected { color: var(--success) !important; }
.status-disconnected { color: var(--danger) !important; }

/* ========== Tab切换 ========== */
.tab-bar { display: flex; gap: 4px; margin-bottom: 16px; background: var(--bg-card); padding: 4px; border-radius: var(--radius-md); width: fit-content; }
.tab-btn {
    padding: 8px 20px; border: none; background: transparent;
    color: var(--text-secondary); font-size: 0.85rem; font-weight: 600;
    border-radius: var(--radius-sm); cursor: pointer; transition: var(--transition);
    font-family: inherit; display: flex; align-items: center; gap: 6px;
}
.tab-btn.active { background: var(--accent); color: #fff; }
.tab-btn:hover:not(.active) { background: var(--bg-hover); color: var(--text-primary); }
.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.25s ease; }

.modbus-tabs { display: flex; gap: 4px; margin-bottom: 16px; }
.mcontent { display: none; }
.mcontent.active { display: block; animation: fadeIn 0.25s ease; }

/* ========== 工具卡片 ========== */
.converter-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin-bottom: 14px; }
.conv-input-group { position: relative; display: flex; flex-direction: column; gap: 5px; }
.conv-input-group button { position: absolute; right: 6px; top: 28px; z-index: 2; }
.converter-options { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; padding-top: 10px; border-top: 1px solid var(--border-color); }

.ascii-hex-layout { display: grid; grid-template-columns: 1fr auto 1fr; gap: 14px; align-items: start; margin-bottom: 14px; }
.ah-controls { display: flex; flex-direction: column; justify-content: center; gap: 8px; padding-top: 24px; }
.ah-block { position: relative; }
.char-count { font-size: 0.75rem; color: var(--text-muted); text-align: right; margin-top: 4px; }
.ah-options { display: flex; gap: 16px; padding-top: 10px; border-top: 1px solid var(--border-color); }

.ascii-table-wrap { overflow-x: auto; max-height: 300px; overflow-y: auto; }
.ascii-table { width: 100%; border-collapse: collapse; font-size: 0.78rem; font-family: monospace; }
.ascii-table th { background: var(--bg-hover); padding: 4px 8px; position: sticky; top: 0; }
.ascii-table td { padding: 3px 8px; text-align: center; border: 1px solid var(--border-color); color: var(--text-secondary); }
.ascii-table tr:hover td { background: var(--bg-hover); color: var(--text-primary); }

.float-hex-layout { display: grid; grid-template-columns: 1fr auto 1fr; gap: 14px; align-items: start; margin-bottom: 16px; }
.fh-controls { display: flex; flex-direction: column; justify-content: center; gap: 10px; padding-top: 30px; }
.fh-block { }
.bit-select, .endian-select { display: flex; gap: 4px; margin-top: 8px; }
.bit-select .btn-sm.active { background: var(--accent); color: #fff; }
.float-result {
    display: flex; gap: 20px; flex-wrap: wrap;
    padding: 14px; background: var(--bg-input);
    border-radius: var(--radius-md); margin-top: 12px;
}
.result-item { display: flex; align-items: center; gap: 6px; font-size: 0.84rem; }
.result-item span { color: var(--text-muted); }
.result-item code, .result-item strong { color: var(--accent); font-family: monospace; }
.history-list { max-height: 200px; overflow-y: auto; }
.history-list .history-item {
    display: flex; justify-content: space-between; padding: 8px 12px;
    border-bottom: 1px solid var(--border-color); font-size: 0.84rem;
    cursor: pointer; transition: background 0.2s;
}
.history-list .history-item:hover { background: var(--bg-hover); }

.ts-grid { display: grid; grid-template-columns: 1fr auto 1fr; gap: 16px; align-items: end; margin-bottom: 16px; }
.ts-separator { text-align: center; color: var(--text-muted); padding-bottom: 22px; }
.ts-block { display: flex; flex-direction: column; gap: 8px; }
.ts-now {
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px 14px; background: var(--bg-input); border-radius: var(--radius-sm);
    margin-bottom: 10px; font-size: 0.88rem;
}
.ts-details { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.detail-row { display: flex; align-items: center; gap: 8px; font-size: 0.84rem; }
.detail-row span { color: var(--text-muted); min-width: 80px; }
.detail-row code { background: var(--bg-input); padding: 3px 8px; border-radius: 4px; color: var(--accent); font-family: monospace; font-size: 0.82rem; }

.time-calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.calc-item { padding: 12px; background: var(--bg-input); border-radius: var(--radius-sm); }
.calc-item label { font-size: 0.82rem; color: var(--text-secondary); display: block; margin-bottom: 6px; }
.calc-inline { display: flex; gap: 6px; margin-bottom: 6px; align-items: center; flex-wrap: wrap; }
.calc-item code { display: block; font-size: 0.82rem; color: var(--success); font-family: monospace; }

.crc-config { margin-bottom: 14px; }
.crc-param { max-width: 300px; margin-bottom: 10px; }
.crc-params-display {
    display: flex; flex-wrap: wrap; gap: 12px;
    padding: 10px 14px; background: var(--bg-input); border-radius: var(--radius-sm);
    font-size: 0.82rem; color: var(--text-secondary);
}
.crc-params-display strong { color: var(--accent); }
.crc-data { margin-bottom: 14px; }
.crc-result { margin-top: 14px; }
.result-box { padding: 20px; background: linear-gradient(135deg, var(--bg-input), var(--bg-hover)); border-radius: var(--radius-md); text-align: center; }
.result-value { font-size: 2rem; font-weight: 700; color: var(--accent); font-family: monospace; letter-spacing: 2px; }
.result-detail { margin-top: 8px; color: var(--text-muted); font-size: 0.84rem; }
.process-view { background: var(--bg-input); padding: 14px; border-radius: var(--radius-md); font-family: monospace; font-size: 0.8rem; color: var(--text-secondary); max-height: 200px; overflow-y: auto; }

.modbus-form { margin-bottom: 14px; }
.modbus-result {
    margin-top: 14px; padding: 14px; background: var(--bg-input);
    border-radius: var(--radius-md); border-left: 3px solid var(--success);
}
.modbus-parse-result { margin-top: 10px; padding: 12px; background: var(--bg-info-bg); border-radius: var(--radius-sm); font-size: 0.84rem; font-family: monospace; }

.br-calcs { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.br-calc-item { padding: 14px; background: var(--bg-input); border-radius: var(--radius-md); }
.br-calc-item h4 { font-size: 0.9rem; margin-bottom: 10px; color: var(--text-secondary); }
.br-inputs { display: grid; grid-template-columns: auto 1fr; gap: 6px 8px; align-items: center; margin-bottom: 10px; font-size: 0.82rem; color: var(--text-secondary); }
.br-inputs label { white-space: nowrap; }
.br-result { margin-top: 10px; padding: 10px; background: var(--bg-primary); border-radius: var(--radius-sm); font-family: monospace; font-size: 0.84rem; color: var(--success); }
.baud-table { width: 100%; border-collapse: collapse; font-size: 0.78rem; }
.baud-table th { background: var(--bg-hover); padding: 6px 8px; text-align: left; }
.baud-table td { padding: 5px 8px; border-bottom: 1px solid var(--border-color); font-family: monospace; color: var(--text-secondary); }

.template-layout { display: grid; grid-template-columns: 280px 1fr; gap: 16px; height: calc(100vh - 130px); }
.template-sidebar { display: flex; flex-direction: column; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); overflow: hidden; }
.template-sidebar h3 { padding: 14px 16px; border-bottom: 1px solid var(--border-color); font-size: 0.95rem; }
.template-search { padding: 10px; border-bottom: 1px solid var(--border-color); }
.template-list { flex: 1; overflow-y: auto; padding: 8px; }
.template-list .tpl-item {
    padding: 10px 12px; border-radius: var(--radius-sm); cursor: pointer;
    margin-bottom: 4px; transition: background 0.2s; font-size: 0.84rem;
    border: 1px solid transparent;
}
.tpl-item:hover { background: var(--bg-hover); }
.tpl-item.selected { background: var(--accent-glow); border-color: var(--accent); }
.tpl-item-name { font-weight: 600; }
.tpl-item-meta { font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; }
.template-actions-bottom { padding: 10px; border-top: 1px solid var(--border-color); display: flex; flex-direction: column; gap: 6px; }
.template-editor { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 18px; overflow-y: auto; }
.template-editor h3 { margin-bottom: 14px; font-size: 0.95rem; }
#tplEditorTitle { color: var(--text-muted); font-weight: normal; font-size: 0.82rem; margin-left: 6px; }
.tpl-editor-actions { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.batch-send-area { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border-color); }
.batch-send-area h4 { font-size: 0.88rem; margin-bottom: 10px; color: var(--text-secondary); }
.form-inline { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.data-table { width: 100%; border-collapse: collapse; font-size: 0.82rem; margin-top: 12px; }
.data-table th { background: var(--bg-hover); padding: 8px 12px; text-align: left; position: sticky; top: 0; }
.data-table td { padding: 7px 12px; border-bottom: 1px solid var(--border-color); font-family: monospace; }
.data-table tr:hover td { background: var(--bg-hover); }
.batch-area { }

.empty-tip { text-align: center; color: var(--text-muted); padding: 20px; font-size: 0.84rem; }

/* ========== 波形显示 ========== */
.waveform-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    margin-top: 16px;
}
.waveform-card h3 i { color: #00cec9; }
.canvas-wrap {
    width: 100%;
    height: 160px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: #0a0c12;
    border: 1px solid var(--border-color);
}
#waveformCanvas {
    display: block;
    width: 100%;
    height: 100%;
}
.wf-stats {
    display: flex;
    gap: 20px;
    margin-top: 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}
.wf-stats strong { color: var(--accent); }

/* ========== 端口选择器 ========== */
.port-select-row {
    display: flex; gap: 8px; align-items: center;
}
.port-select-row select { flex: 1; }
.port-select-row .btn { flex-shrink: 0; }

/* ========== Toast通知 ========== */
.toast-container { position: fixed; top: 70px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast {
    padding: 12px 20px; border-radius: var(--radius-md);
    color: #fff; font-size: 0.86rem; font-weight: 500;
    box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 8px;
    animation: slideInRight 0.3s ease, fadeOutRight 0.3s ease 2.7s forwards;
    max-width: 360px;
}
.toast.success { background: linear-gradient(135deg, #00b894, #00cec9); }
.toast.error { background: linear-gradient(135deg, #d63031, #ff6b81); }
.toast.warning { background: linear-gradient(135deg, #e17055, #fdcb6e); color: #333; }
.toast.info { background: linear-gradient(135deg, #0984e3, #74b9ff); }
@keyframes slideInRight { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fadeOutRight { to { transform: translateX(100%); opacity: 0; } }

/* ========== 输入框带按钮 ========== */
.input-with-btn { display: flex; gap: 8px; align-items: center; }
.input-with-btn input { flex: 1; }

/* ========== 响应式 ========== */
@media (max-width: 1200px) {
    .panel-row { grid-template-columns: 1fr; }
    .br-calcs { grid-template-columns: 1fr; }
    .time-calc-grid { grid-template-columns: 1fr; }
    .template-layout { grid-template-columns: 1fr; height: auto; }
    .template-sidebar { max-height: 400px; }
    .ascii-hex-layout, .float-hex-layout, .ts-grid { grid-template-columns: 1fr; }
    .ah-controls, .fh-controls, .ts-separator { flex-direction: row; justify-content: center; padding: 10px 0; }
    .overview-hero { flex-direction: column; align-items: flex-start; }
    .overview-toolbar { flex-direction: column; align-items: stretch; }
    .overview-stats { grid-template-columns: 1fr; }
    .serial-workspace {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto auto auto;
        min-height: auto;
    }
    .serial-config-card { grid-column: 1 / span 2; grid-row: 1; }
    .serial-wave-card { grid-column: 1 / span 2; grid-row: 2; }
    .serial-send-card { grid-column: 1; grid-row: 3; }
    .serial-console-card { grid-column: 2; grid-row: 3; }
}
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-lg); }
    .main-content { margin-left: 0; }
    .mobile-toggle { display: block; }
    .form-grid { grid-template-columns: 1fr; }
    .converter-grid { grid-template-columns: 1fr 1fr; }
    .nav-item small { display: none; }
    .module-container { padding: 12px; }
    .console-output { max-height: 240px; font-size: 0.76rem; }
    .crc-params-display { font-size: 0.75rem; }
    .float-result { flex-direction: column; gap: 10px; }
    .topbar { padding: 0 16px; }
    .topbar-actions { gap: 8px; }
    .overview-grid { grid-template-columns: 1fr; }
    .serial-workspace {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
    .serial-config-card,
    .serial-send-card,
    .serial-wave-card,
    .serial-console-card {
        grid-column: auto;
        grid-row: auto;
    }
    .serial-form-grid { grid-template-columns: 1fr; }
    .serial-inline-summary { flex-direction: column; align-items: flex-start; }
    .serial-send-textarea { min-height: 96px; resize: vertical; }
    .serial-console-output { min-height: 200px; height: auto; }
    .firmware-stats { grid-template-columns: 1fr; }
}