body { margin: 0; padding: 0;
}
body, h1, p, h2, h3 { margin: 0; padding: 0; box-sizing: border-box;
}

.product-customization-page {
    font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
    color: #333;
    width: 100%;
    margin: 0 auto;
}

.main-visual-section { max-width: 1400px; margin: 0 auto; padding: 20px 0; }
.image-wrapper { position: relative; width: 100%;
max-height: 600px; overflow: hidden; }
.main-product-image { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.overlay-text { position: absolute;
top: 50%; left: 10%; transform: translateY(-50%); color: #fff; max-width: 500px; padding: 20px; }
.overlay-text h1 { font-size: 3em; margin-bottom: 0.5em;
font-weight: bold; }
.overlay-text p { font-size: 1.2em; margin-bottom: 1.5em; line-height: 1.5; }
.customize-button { display: inline-block; padding: 12px 30px; background-color: #ff5722;
color: #fff; text-decoration: none; font-size: 1em; border-radius: 5px; transition: background-color 0.3s; }
.customize-button:hover { background-color: #e64a19;
}

.customization-steps-section {
    text-align: center;
    padding: 30px 30px;

    background-color: #ffffff;
}

.customization-steps-section h2 {
    font-size: 2em;
    margin-bottom: 40px;
    color: #0f403f;
}

.steps-container {
    display: flex;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
gap: 40px 20px;
}

.step-card-wrapper {
    min-width: 200px;
    max-width: 280px;
flex: 1;
    position: relative;
    margin-top: 50px;
}

.icon-wrapper {
    position: absolute;
    top: -40px;
left: 50%;
    transform: translateX(-50%);

    width: 80px;
    height: 80px;

    border-radius: 50%;

    display: flex;
    justify-content: center;
    align-items: center;
z-index: 10;
}

.icon-wrapper img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.step-item {
    width: 100%;
    padding: 60px 20px 30px;
    text-align: left;
    box-sizing: border-box;

    background-color: #f5f5f5;
    border-radius: 12px;

}

.step-item h3 {
    font-size: 1.3em;
    margin-bottom: 10px;
color: #333;
}

.step-item p {
    font-size: 0.95em;
color: #666;
}

.rf-brush-rfq-section {
    margin: 36px 0;
    padding: 28px;
    border: 1px solid #dbe5e0;
    border-radius: 8px;
    background: #f7faf8;
    font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
    color: #0f403f;
    line-height: 1.65;
}

.rf-brush-rfq-section h2 {
    margin: 0 0 18px;
    text-align: center;
    font-size: 28px;
    line-height: 1.25;
    color: #0f403f;
}

.rf-brush-rfq-section h3 {
    margin: 18px 0 8px;
    font-size: 18px;
    line-height: 1.35;
    color: #0f403f;
}

.rf-brush-rfq-section p {
    margin: 0 0 14px;
}

.rf-brush-rfq-section ul,
.rf-brush-rfq-section ol {
    margin: 0;
    padding-left: 22px;
}

.rf-brush-rfq-section li {
    margin: 8px 0;
}

.rf-brush-two-col {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.rf-brush-card {
    background: #ffffff;
    border: 1px solid #dbe5e0;
    border-radius: 8px;
    padding: 20px;
}

.rf-brush-case-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr);
    gap: 24px;
    align-items: start;
}

.rf-brush-case-grid figure {
    margin: 0;
}

.rf-brush-case-grid img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 6px;
}

.rf-brush-case-grid figcaption {
    margin-top: 8px;
    color: #5d6b67;
    font-size: 13px;
}

.rf-brush-rfq-list {
    columns: 2;
    column-gap: 30px;
}

.rf-brush-guides {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.rf-brush-guide {
    display: block;
    padding: 20px;
    border: 1px solid #dbe5e0;
    border-radius: 8px;
    background: #ffffff;
    color: #0f403f;
    text-decoration: none;
}

.rf-brush-guide strong {
    display: block;
    margin-bottom: 8px;
    font-size: 18px;
    line-height: 1.35;
}

.rf-brush-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-top: 20px;
}

.rf-brush-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 20px;
    border-radius: 5px;
    background: #0f403f;
    color: #ffffff !important;
    text-decoration: none;
    font-weight: 700;
}

@media (max-width: 760px) {
    .rf-brush-rfq-section {
        padding: 22px 16px;
    }
    .rf-brush-two-col,
    .rf-brush-case-grid,
    .rf-brush-guides {
        grid-template-columns: 1fr;
    }
    .rf-brush-rfq-list {
        columns: 1;
    }
    .rf-brush-btn {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 992px) {
    .step-card-wrapper {
        flex: 0 0 calc(50% - 20px);
}
}

@media (max-width: 576px) {
    .step-card-wrapper {
        flex: 0 0 100%;
}
}