.pcg-guide-box {
    background: #f8fafc;
    border: 1px solid #e5e7eb;
    border-radius: 18px;
    padding: 24px;
    margin: 0 0 24px;
    box-shadow: 0 8px 30px rgba(15, 23, 42, 0.06);
}

.pcg-header h3 {
    margin: 0 0 8px;
    font-size: 28px;
    line-height: 1.2;
}

.pcg-subtitle {
    margin: 0 0 12px;
    color: #475569;
    font-size: 15px;
}

.pcg-intro-note {
    display: inline-block;
    padding: 8px 12px;
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    color: #1d4ed8;
    border-radius: 999px;
    font-size: 13px;
}

.pcg-hands-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
    margin-top: 22px;
}

.pcg-hand-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    padding: 18px;
}

.pcg-hand-card h4 {
    margin: 0 0 14px;
    font-size: 20px;
}

.pcg-example-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.pcg-example-card img,
.pcg-camera-preview img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
}

.pcg-placeholder {
    min-height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed #cbd5e1;
    border-radius: 12px;
    padding: 18px;
    background: #f8fafc;
    color: #64748b;
    text-align: center;
}

.pcg-label {
    margin-top: 10px;
    font-weight: 700;
    font-size: 14px;
}

.pcg-label-correct {
    color: #15803d;
}

.pcg-label-incorrect {
    color: #b91c1c;
}

.pcg-tips {
    margin: 16px 0 0;
    padding-left: 20px;
    color: #334155;
}

.pcg-tips li + li {
    margin-top: 8px;
}

.pcg-camera-helper {
    margin-top: 24px;
    border-top: 1px solid #e5e7eb;
    padding-top: 20px;
}

.pcg-camera-button,
.pcg-capture-button,
.pcg-close-button {
    appearance: none;
    border: 0;
    border-radius: 12px;
    padding: 12px 16px;
    font-weight: 600;
    cursor: pointer;
}

.pcg-camera-button,
.pcg-capture-button {
    background: #111827;
    color: #ffffff;
}

.pcg-close-button {
    background: #e5e7eb;
    color: #111827;
}

.pcg-camera-help-text {
    margin: 10px 0 0;
    color: #64748b;
}

.pcg-camera-panel {
    margin-top: 16px;
}

.pcg-camera-video {
    width: 100%;
    max-width: 540px;
    border-radius: 16px;
    background: #000000;
}

.pcg-camera-actions {
    display: flex;
    gap: 12px;
    margin-top: 14px;
}

.pcg-camera-preview {
    margin-top: 14px;
    max-width: 540px;
}

@media (max-width: 900px) {
    .pcg-hands-grid,
    .pcg-example-grid {
        grid-template-columns: 1fr;
    }

    .pcg-header h3 {
        font-size: 24px;
    }
}