/* Shared polish for rewritten device-test pages */
.dev-system-page .sys-tool {
    display: grid;
    gap: 14px;
}

.dev-system-page .sys-card {
    background: #fff;
    border: 1px solid var(--dev-border, #e2e8f0);
    border-radius: var(--dev-radius, 8px);
    box-shadow: var(--dev-shadow, 0 1px 2px rgba(15, 23, 42, 0.04));
    overflow: hidden;
}

.dev-system-page .sys-card__hd {
    padding: 10px 14px;
    border-bottom: 1px solid var(--dev-border, #e2e8f0);
    background: #f8fafc;
    font-size: 13px;
    font-weight: 600;
    color: #334155;
}

.dev-system-page .sys-card__bd {
    padding: 14px;
}

.dev-system-page .sys-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.dev-system-page .sys-note {
    margin: 0;
    font-size: 12px;
    color: var(--dev-text-muted, #64748b);
    line-height: 1.6;
}

.dev-system-page .sys-grid-2 {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 14px;
}

.dev-system-page .sys-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.dev-system-page .sys-btn {
    appearance: none;
    border: 1px solid #cbd5e1;
    background: #fff;
    color: #334155;
    border-radius: 6px;
    padding: 8px 14px;
    font-size: 13px;
    cursor: pointer;
    line-height: 1.2;
}

.dev-system-page .sys-btn:hover {
    border-color: #94a3b8;
    background: #f8fafc;
}

.dev-system-page .sys-btn--primary {
    background: #2563eb;
    border-color: #2563eb;
    color: #fff;
}

.dev-system-page .sys-btn--primary:hover {
    background: #1d4ed8;
    border-color: #1d4ed8;
}

.dev-system-page .sys-btn--danger {
    background: #dc2626;
    border-color: #dc2626;
    color: #fff;
}

.dev-system-page .sys-btn--danger:hover {
    background: #b91c1c;
}

.dev-system-page .sys-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.dev-system-page .sys-btn.is-active,
.dev-system-page .sys-screen-tabs button.is-active {
    background: #2563eb;
    border-color: #2563eb;
    color: #fff;
}

/* —— Screen —— */
.dev-system-page .sys-screen-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.dev-system-page .sys-screen-pane {
    display: none;
}

.dev-system-page .sys-screen-pane.is-active {
    display: block;
}

.dev-system-page .sys-swatch-grid,
.dev-system-page .sys-gradient-grid,
.dev-system-page .sys-pattern-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
    gap: 8px;
}

.dev-system-page .sys-swatch,
.dev-system-page .sys-gradient,
.dev-system-page .sys-pattern {
    height: 56px;
    border-radius: 6px;
    border: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    cursor: pointer;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
    user-select: none;
}

.dev-system-page .sys-swatch[data-color="#ffffff"],
.dev-system-page .sys-swatch[data-color="#ffff00"],
.dev-system-page .sys-swatch[data-color="#00ffff"],
.dev-system-page .sys-swatch[data-color="#00ff00"] {
    color: #111;
    text-shadow: none;
}

.dev-system-page .sys-custom-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-top: 12px;
}

.dev-system-page .sys-custom-preview {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    border: 1px solid #cbd5e1;
}

.sys-screen-overlay {
    display: none;
    position: fixed;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    z-index: 2147483000;
    cursor: pointer;
    background: #000;
}

.sys-screen-overlay.is-open {
    display: block;
}

.sys-screen-overlay:fullscreen,
.sys-screen-overlay:-webkit-full-screen {
    width: 100%;
    height: 100%;
    background: inherit;
}

.sys-screen-overlay__hint {
    position: absolute;
    left: 50%;
    bottom: 28px;
    transform: translateX(-50%);
    background: rgba(15, 23, 42, 0.72);
    color: #fff;
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 13px;
    pointer-events: none;
    z-index: 1;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

.sys-screen-overlay__hint.is-hidden {
    opacity: 0;
    visibility: hidden;
}

body.sys-screen-lock {
    overflow: hidden !important;
}

/* —— Mouse (standard PC mouse schematic) —— */
.dev-system-page .sys-mouse-stage {
    user-select: none;
    touch-action: none;
    background: #e8eef5;
    border-radius: 8px;
    padding: 28px 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: crosshair;
    min-height: 360px;
    position: relative;
    z-index: 1;
}

.dev-system-page .sys-mouse {
    width: 168px;
    height: 276px;
    position: relative;
    margin-left: 14px;
    background: linear-gradient(180deg, #d8dee8 0%, #c5cedb 100%);
    border: 2px solid #64748b;
    border-radius: 84px 84px 72px 72px / 64px 64px 96px 96px;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.55),
        0 8px 18px rgba(15, 23, 42, 0.12);
    pointer-events: none;
}

.dev-system-page .sys-mouse-part {
    position: absolute;
    transition: background 0.12s ease, box-shadow 0.12s ease, color 0.12s ease, border-color 0.12s ease;
    pointer-events: none;
}

.dev-system-page .sys-mouse-btn--left,
.dev-system-page .sys-mouse-btn--right {
    top: 10px;
    width: 66px;
    height: 96px;
    background: #f8fafc;
    border: 1px solid #94a3b8;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 10px;
    box-sizing: border-box;
}

.dev-system-page .sys-mouse-btn--left {
    left: 8px;
    border-radius: 70px 10px 14px 36px;
}

.dev-system-page .sys-mouse-btn--right {
    right: 8px;
    border-radius: 10px 70px 36px 14px;
}

.dev-system-page .sys-mouse-btn--left span,
.dev-system-page .sys-mouse-btn--right span {
    font-size: 11px;
    color: #64748b;
}

.dev-system-page .sys-mouse-wheel-wrap {
    position: absolute;
    left: 50%;
    top: 22px;
    width: 28px;
    margin-left: -14px;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    pointer-events: none;
}

.dev-system-page .sys-mouse-wheel-ind {
    position: static;
    width: 22px;
    height: 16px;
    line-height: 16px;
    text-align: center;
    font-size: 10px;
    color: #94a3b8;
    background: transparent;
    border: 0;
}

.dev-system-page .sys-mouse-wheel {
    position: static;
    width: 22px;
    height: 54px;
    border-radius: 11px;
    background: linear-gradient(90deg, #64748b, #94a3b8 45%, #475569);
    border: 1px solid #334155;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: center;
    padding: 6px 0;
    box-sizing: border-box;
}

.dev-system-page .sys-mouse-wheel i {
    display: block;
    width: 14px;
    height: 2px;
    border-radius: 1px;
    background: rgba(255, 255, 255, 0.45);
}

.dev-system-page .sys-mouse-palm {
    position: absolute;
    left: 14px;
    right: 14px;
    top: 118px;
    bottom: 16px;
    border-radius: 40px 40px 56px 56px;
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.35), rgba(248, 250, 252, 0.08));
    border: 1px dashed rgba(100, 116, 139, 0.35);
    pointer-events: none;
}

/* Gaming mouse thumb / side buttons (left flank) */
.dev-system-page .sys-mouse-side {
    position: absolute;
    left: -10px;
    top: 118px;
    width: 18px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    z-index: 4;
    pointer-events: none;
}

.dev-system-page .sys-mouse-side-btn {
    position: static;
    width: 18px;
    height: 36px;
    border-radius: 8px 4px 4px 8px;
    background: #e2e8f0;
    border: 1px solid #64748b;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-size: 10px;
    letter-spacing: 1px;
    color: #64748b;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.dev-system-page .sys-mouse-side-btn.is-visited {
    background: #bbf7d0;
    color: #166534;
}

.dev-system-page .sys-mouse-side-btn.is-active {
    background: #22c55e !important;
    color: #fff !important;
    border-color: #16a34a !important;
}

.dev-system-page .sys-mouse-part.is-visited {
    background: #bbf7d0;
    border-color: #4ade80;
}

.dev-system-page .sys-mouse-wheel.is-visited {
    background: linear-gradient(90deg, #16a34a, #4ade80 45%, #15803d);
    border-color: #166534;
}

.dev-system-page .sys-mouse-wheel-ind.is-visited {
    color: #16a34a;
    background: transparent;
}

.dev-system-page .sys-mouse-part.is-active {
    background: #22c55e !important;
    border-color: #16a34a !important;
    box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.35);
    color: #fff;
}

.dev-system-page .sys-mouse-btn--left.is-active span,
.dev-system-page .sys-mouse-btn--right.is-active span {
    color: #fff;
}

.dev-system-page .sys-mouse-wheel.is-active {
    background: linear-gradient(90deg, #16a34a, #4ade80 45%, #15803d) !important;
}

.dev-system-page .sys-mouse-wheel-ind.is-active {
    color: #16a34a !important;
    background: transparent !important;
    box-shadow: none !important;
    transform: scale(1.25);
}

.dev-system-page .sys-mouse-stats {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.dev-system-page .sys-mouse-stats div {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 10px;
    text-align: center;
}

.dev-system-page .sys-mouse-stats strong {
    display: block;
    font-size: 22px;
    color: #0f172a;
}

.dev-system-page .sys-mouse-stats span {
    font-size: 12px;
    color: #64748b;
}

.dev-system-page #sysMouseLog {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 220px;
    overflow: auto;
    font-size: 12px;
    color: #475569;
}

.dev-system-page #sysMouseLog li {
    padding: 6px 0;
    border-bottom: 1px dashed #e2e8f0;
}

/* —— Webcam —— */
.dev-system-page .sys-cam-layout {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 14px;
}

.dev-system-page .sys-cam-video-wrap {
    background: #0f172a;
    border-radius: 8px;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dev-system-page #sysCamVideo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #0f172a;
}

.dev-system-page .sys-cam-status {
    margin: 0 0 10px;
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 13px;
    background: #f1f5f9;
    color: #334155;
}

.dev-system-page .sys-cam-status.is-ok {
    background: #dcfce7;
    color: #166534;
}

.dev-system-page .sys-cam-status.is-fail {
    background: #fee2e2;
    color: #991b1b;
}

.dev-system-page .sys-cam-status.is-loading {
    background: #e0f2fe;
    color: #075985;
}

.dev-system-page .sys-cam-status.is-muted {
    background: #f1f5f9;
    color: #64748b;
}

.dev-system-page #sysCamSelect,
.dev-system-page #sysMicSelect,
.dev-system-page select.sys-select {
    display: block;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    margin: 0 0 10px;
    height: 38px;
    padding: 8px 36px 8px 12px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    background-color: #fff;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2364748b' d='M1.4 1.4L6 6l4.6-4.6L12 2.8 6 8.8 0 2.8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 12px 8px;
    color: #0f172a;
    font-size: 13px;
    line-height: 1.3;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
}

.dev-system-page #sysCamSelect:focus,
.dev-system-page #sysMicSelect:focus,
.dev-system-page select.sys-select:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.dev-system-page #sysCamSelect option,
.dev-system-page #sysMicSelect option,
.dev-system-page select.sys-select option {
    color: #0f172a;
    background: #fff;
}

.dev-system-page .sys-props {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.dev-system-page .sys-props th,
.dev-system-page .sys-props td {
    padding: 8px 6px;
    border-bottom: 1px solid #e2e8f0;
    text-align: left;
}

.dev-system-page .sys-props th {
    width: 42%;
    color: #64748b;
    font-weight: 500;
}

.dev-system-page #sysCamShots {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.dev-system-page .sys-cam-shot {
    display: block;
    width: 96px;
    height: 72px;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid #cbd5e1;
}

.dev-system-page .sys-cam-shot img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* —— CPS —— */
.dev-system-page .sys-cps-time {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.dev-system-page .sys-cps-time button {
    min-width: 48px;
}

.dev-system-page #clickArea {
    min-height: 220px;
    border: 2px dashed #cbd5e1;
    border-radius: 10px;
    background: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    user-select: none;
    transition: background 0.15s ease, border-color 0.15s ease;
}

.dev-system-page #clickArea h2 {
    margin: 0;
    font-size: 22px;
    color: #64748b;
    font-weight: 600;
}

.dev-system-page #clickArea.is-active {
    background: #eff6ff;
    border-color: #2563eb;
}

.dev-system-page #clickArea.is-active h2 {
    color: #1d4ed8;
}

.dev-system-page #clickArea.is-done {
    background: #f0fdf4;
    border-color: #16a34a;
}

.dev-system-page #clickArea.is-done h2 {
    color: #15803d;
}

.dev-system-page .sys-cps-stat {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 12px;
    text-align: center;
}

.dev-system-page .sys-cps-stat .label {
    font-size: 12px;
    color: #64748b;
    margin-bottom: 4px;
}

.dev-system-page .sys-cps-stat .value {
    font-size: 24px;
    font-weight: 700;
    color: #0f172a;
}

.dev-system-page .sys-cps-history-item {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid #e2e8f0;
    font-size: 13px;
}

.dev-system-page #sysCpsResult {
    display: none;
    margin-top: 12px;
    padding: 14px;
    border-radius: 8px;
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    text-align: center;
}

.dev-system-page #sysCpsResult.is-open {
    display: block;
}

.dev-system-page #resultCps {
    font-size: 32px;
    font-weight: 700;
    color: #1d4ed8;
}

.dev-system-page #levelIndicator {
    margin-top: 4px;
    color: #334155;
    font-weight: 600;
}

/* —— Mic —— */
.dev-system-page .sys-mic-canvas {
    width: 100%;
    height: 160px;
    display: block;
    border-radius: 8px;
    background: #0f172a;
    border: 1px solid #1e293b;
}

.dev-system-page .sys-mic-level__track {
    height: 10px;
    border-radius: 999px;
    background: #e2e8f0;
    overflow: hidden;
}

.dev-system-page .sys-mic-level__bar {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, #22c55e, #eab308, #ef4444);
    transition: width 0.08s linear;
}

/* —— Chmod —— */
.dev-system-page .sys-chmod-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 16px;
    align-items: start;
}

.dev-system-page .sys-chmod-groups {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.dev-system-page .sys-chmod-group {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 12px;
}

.dev-system-page .sys-chmod-group h4 {
    margin: 0 0 10px;
    font-size: 14px;
    color: #334155;
}

.dev-system-page .sys-chmod-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: #475569;
    margin: 0 0 8px;
    cursor: pointer;
}

.dev-system-page .sys-chmod-group label:last-child {
    margin-bottom: 0;
}

.dev-system-page .sys-chmod-num {
    width: 100%;
    border: 0;
    background: transparent;
    text-align: center;
    font-size: 28px;
    font-weight: 700;
    color: #0f172a;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.dev-system-page .sys-chmod-symbol {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    letter-spacing: 2px;
    font-size: 22px !important;
}

.dev-system-page .sys-chmod-cmd-wrap {
    margin-top: 12px;
    display: flex;
    gap: 8px;
    align-items: center;
    background: #0f172a;
    color: #e2e8f0;
    border-radius: 8px;
    padding: 10px 12px;
}

.dev-system-page .sys-chmod-cmd-wrap code {
    flex: 1;
    font-size: 13px;
    word-break: break-all;
}

@media (max-width: 900px) {
    .dev-system-page .sys-grid-2,
    .dev-system-page .sys-cam-layout,
    .dev-system-page .sys-chmod-grid {
        grid-template-columns: 1fr;
    }

    .dev-system-page .sys-grid-3,
    .dev-system-page .sys-chmod-groups {
        grid-template-columns: 1fr;
    }
}

.dev-system-page .sys-stat {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 12px;
    text-align: center;
}
.dev-system-page .sys-stat .label { font-size: 12px; color: #64748b; }
.dev-system-page .sys-stat .value { margin-top: 6px; font-size: 22px; font-weight: 700; color: #0f172a; }

.dev-system-page .sys-ear {
    display: flex;
    justify-content: center;
    gap: 28px;
    margin: 8px 0 16px;
}
.dev-system-page .sys-ear__ch {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 3px solid #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    color: #64748b;
    background: #f8fafc;
    transition: background .15s, border-color .15s, color .15s;
}
.dev-system-page .sys-ear__ch.is-on {
    background: #dbeafe;
    border-color: #2563eb;
    color: #1d4ed8;
}

.dev-system-page .sys-gp-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.dev-system-page .sys-sticks { display: flex; justify-content: space-around; gap: 16px; }
.dev-system-page .sys-stick {
    width: 120px; height: 120px; border-radius: 50%;
    border: 1px solid #cbd5e1; background: #f1f5f9; position: relative;
}
.dev-system-page .sys-stick__dot {
    width: 22px; height: 22px; border-radius: 50%; background: #2563eb;
    position: absolute; left: 50%; top: 50%; margin: -11px 0 0 -11px;
}
.dev-system-page .sys-gp-btns {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px;
}
.dev-system-page .sys-gp-btns span {
    display: block; text-align: center; font-size: 11px; padding: 8px 4px;
    border-radius: 6px; background: #f8fafc; border: 1px solid #e2e8f0; color: #64748b;
}
.dev-system-page .sys-gp-btns span.is-on { background: #2563eb; border-color: #2563eb; color: #fff; }

.dev-system-page .sys-touch-canvas {
    width: 100%; height: 360px; display: block; touch-action: none;
    background: #0f172a; border-radius: 8px; border: 1px solid #1e293b;
}

.dev-system-page .sys-react {
    min-height: 220px; border-radius: 10px; display: flex; align-items: center;
    justify-content: center; text-align: center; cursor: pointer; user-select: none;
    font-size: 20px; font-weight: 600; color: #fff;
}
.dev-system-page .sys-react.is-wait { background: #64748b; }
.dev-system-page .sys-react.is-ready { background: #16a34a; }
.dev-system-page .sys-react.is-early { background: #dc2626; }

.dev-system-page .sys-gyro {
    width: 220px; height: 220px; margin: 0 auto; border-radius: 50%;
    border: 1px solid #cbd5e1; background: radial-gradient(circle, #fff 0%, #e2e8f0 100%);
    position: relative; overflow: hidden;
}
.dev-system-page .sys-gyro__ball {
    width: 28px; height: 28px; border-radius: 50%; background: #2563eb;
    position: absolute; left: 50%; top: 50%; margin: -14px 0 0 -14px;
}

.dev-system-page .sys-batt {
    height: 18px; border-radius: 999px; background: #e2e8f0; overflow: hidden;
}
.dev-system-page .sys-batt__bar { height: 100%; width: 0; background: #16a34a; }

.dev-system-page .sys-gen-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}
.dev-system-page .sys-gen-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
    color: #64748b;
    max-width: 240px;
}
.dev-system-page .sys-gen-scale {
    display: block;
    width: 100%;
    height: 88px;
    cursor: pointer;
    border-radius: 8px;
    margin-bottom: 10px;
}
.dev-system-page .sys-gen-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin-bottom: 8px;
}
.dev-system-page .sys-gen-oct {
    width: 24px;
    font-size: 12px;
    color: #94a3b8;
}
.dev-system-page .sys-gen-note {
    min-width: 42px;
    padding: 6px 8px;
}

.dev-system-page .hp-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 6px;
    margin-bottom: 16px;
    background: #eef2f6;
    border-radius: 12px;
}
.dev-system-page .hp-nav button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 0;
    background: transparent;
    color: #475569;
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 13px;
    cursor: pointer;
}
.dev-system-page .hp-nav button svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}
.dev-system-page .hp-nav button.is-active {
    background: #fff;
    color: #0f172a;
    box-shadow: 0 1px 4px rgba(15, 23, 42, 0.12);
    font-weight: 600;
}
.dev-system-page .hp-pane { display: none; }
.dev-system-page .hp-pane.is-on { display: block; }
.dev-system-page .hp-delay-bar {
    position: relative;
    height: 36px;
    margin: 8px 0 12px;
    border-radius: 8px;
    background: linear-gradient(90deg, #dbeafe, #eff6ff 40%, #e2e8f0);
    border: 1px solid #cbd5e1;
    cursor: crosshair;
}
.dev-system-page .hp-delay-mark {
    position: absolute;
    top: 4px;
    bottom: 4px;
    width: 3px;
    margin-left: -1px;
    background: #2563eb;
    border-radius: 2px;
    left: 0;
}
.dev-system-page .hp-fly-canvas {
    display: block;
    width: 100%;
    height: 260px;
    border-radius: 8px;
    cursor: pointer;
    background: #e2e8f0;
}
.dev-system-page .hp-fly-meta {
    margin-bottom: 8px;
    font-size: 14px;
    color: #334155;
}

@media (max-width: 900px) {
    .dev-system-page .sys-gp-wrap { grid-template-columns: 1fr; }
}

.dev-system-page .spk-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}
.dev-system-page .spk-label {
    min-width: 64px;
    font-size: 13px;
    color: #334155;
    font-weight: 600;
}
.dev-system-page .spk-field {
    display: block;
    margin-bottom: 12px;
    font-size: 13px;
    color: #334155;
    font-weight: 600;
}
.dev-system-page .spk-slide {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 6px;
    font-weight: 400;
    color: #64748b;
    font-size: 13px;
}
.dev-system-page .spk-slide input[type="range"] {
    flex: 1;
    min-width: 0;
}
.dev-system-page .spk-slide .dev-input {
    width: 88px;
}
.dev-system-page .spk-spec {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 8px;
}
.dev-system-page .spk-spec__hd {
    font-size: 12px;
    color: #64748b;
    margin-bottom: 6px;
}
.dev-system-page .spk-spec__canvas {
    display: block;
    width: 100%;
    height: 140px;
    border-radius: 8px;
    background: #0f172a;
}
@media (max-width: 700px) {
    .dev-system-page .spk-spec { grid-template-columns: 1fr; }
}

.dev-system-page .sys-spk {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin: 8px 0 16px;
    flex-wrap: wrap;
}
.dev-system-page .sys-spk__box {
    width: 168px;
    min-height: 150px;
    border: 3px solid #e2e8f0;
    border-radius: 16px;
    background: #f8fafc;
    color: #475569;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 700;
    transition: background .15s, border-color .15s, color .15s;
}
.dev-system-page .sys-spk__box:hover {
    border-color: #93c5fd;
}
.dev-system-page .sys-spk__box.is-on {
    background: #dbeafe;
    border-color: #2563eb;
    color: #1d4ed8;
}
.dev-system-page .sys-spk__icon {
    width: 56px;
    height: 44px;
    border-radius: 8px 4px 4px 8px;
    background: currentColor;
    position: relative;
    opacity: 0.85;
}
.dev-system-page .sys-spk__icon::after {
    content: '';
    position: absolute;
    right: -14px;
    top: 6px;
    width: 18px;
    height: 32px;
    border: 3px solid currentColor;
    border-left: 0;
    border-radius: 0 40px 40px 0;
}
.dev-system-page .sys-spk__box.is-on .sys-spk__icon::after {
    box-shadow: 8px 0 0 -4px currentColor, 14px 0 0 -6px currentColor;
}

/* —— Speaker (legacy scaled layout) —— */
.dev-system-page .dev-calc-panel:has(.sys-speaker) {
    overflow-x: hidden;
    padding-left: 12px;
    padding-right: 12px;
}

.dev-system-page .sys-speaker {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.dev-system-page .sys-speaker__fit {
    width: 100%;
    overflow: hidden;
    display: flex;
    justify-content: center;
    container-type: inline-size;
}

.dev-system-page .sys-speaker .test {
    width: 850px;
    max-width: 850px;
    margin: 0 auto;
    transform-origin: top center;
}

.dev-system-page .sys-speaker .sound-test,
.dev-system-page .sys-speaker .contorls {
    width: 850px;
    max-width: 850px;
}

@container (max-width: 849px) {
    .dev-system-page .sys-speaker .test {
        --speaker-scale: calc(100cqw / 850);
        transform: scale(var(--speaker-scale));
        margin-bottom: calc(254px * (var(--speaker-scale) - 1));
    }

    .dev-system-page .sys-speaker .contorls {
        flex-wrap: wrap;
        gap: 8px;
        justify-content: center;
        padding: 0 4px;
    }

    .dev-system-page .sys-speaker .contorls button {
        padding: 10px 18px;
        font-size: 13px;
        white-space: nowrap;
    }
}