/* 品质工艺 */

/* 五道工序 */
.process-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 26px;
}

.process-item {
    position: relative;
    border-top: 1px solid var(--line);
    padding-top: 22px;
}

.process-item::before {
    content: "";
    position: absolute;
    left: 0;
    top: -3px;
    width: 6px;
    height: 6px;
    background: var(--brand);
}

.process-item .step-no {
    font-size: 12px;
    letter-spacing: 2px;
    color: var(--gold);
}

.process-item h3 {
    font-size: 17px;
    font-weight: 600;
    letter-spacing: 2px;
    margin: 8px 0 8px;
}

.process-item p {
    font-size: 12px;
    color: var(--gray);
    line-height: 1.95;
}

/* 图文两栏 */
.feature-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
}

.feature-row+.feature-row {
    margin-top: 66px;
}

.feature-row.reverse .feature-pic {
    order: 2;
}

.feature-pic img {
    width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--line);
}

.feature-text .kicker {
    font-size: 11px;
    letter-spacing: 4px;
    color: var(--gold);
    text-transform: uppercase;
}

.feature-text h2 {
    font-size: 26px;
    font-weight: 600;
    letter-spacing: 3px;
    margin-top: 8px;
}

.feature-text .line {
    width: 32px;
    height: 2px;
    background: var(--gold);
    margin: 16px 0 20px;
}

.feature-text p {
    font-size: 14px;
    color: var(--ink-soft);
    line-height: 2;
    margin-bottom: 12px;
}

/* 品控手风琴 */
.qc-list {
    max-width: 880px;
    margin: 0 auto;
    border-top: 1px solid var(--line);
}

.qc-item {
    border-bottom: 1px solid var(--line);
}

.qc-head {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 18px;
    background: none;
    border: none;
    padding: 20px 4px;
    text-align: left;
}

.qc-idx {
    font-size: 12px;
    color: var(--gold);
    width: 24px;
    flex: none;
    letter-spacing: 1px;
}

.qc-title {
    flex: 1;
    font-size: 15px;
    color: var(--ink);
    letter-spacing: 1px;
}

.qc-icon {
    position: relative;
    width: 12px;
    height: 12px;
    flex: none;
}

.qc-icon::before,
.qc-icon::after {
    content: "";
    position: absolute;
    background: var(--gray);
    transition: transform .3s, opacity .3s;
}

.qc-icon::before {
    left: 0;
    top: 5px;
    width: 12px;
    height: 1px;
}

.qc-icon::after {
    left: 5px;
    top: 0;
    width: 1px;
    height: 12px;
}

.qc-item.open .qc-icon::after {
    transform: scaleY(0);
    opacity: 0;
}

.qc-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
}

.qc-item.open .qc-body {
    max-height: 240px;
}

.qc-body p {
    padding: 0 40px 22px 46px;
    font-size: 13px;
    color: var(--gray);
    line-height: 2;
}

.qc-item.open .qc-title {
    color: var(--brand);
}

.qc-head:hover .qc-title {
    color: var(--brand);
}

/* 研发检测 */
.lab-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 12px 12px 18px;
}

.lab-card img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    border-radius: 2px;
}

.lab-card h3 {
    font-size: 15px;
    font-weight: 600;
    margin: 14px 4px 6px;
    letter-spacing: 1px;
}

.lab-card p {
    font-size: 12px;
    color: var(--gray);
    line-height: 1.9;
    margin: 0 4px;
}

@media (max-width: 1100px) {
    .process-grid {
        grid-template-columns: repeat(3, 1fr);
        row-gap: 32px;
    }

    .feature-row {
        gap: 36px;
    }
}

@media (max-width: 860px) {
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-row,
    .feature-row.reverse {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .feature-row.reverse .feature-pic {
        order: 0;
    }

    .feature-row+.feature-row {
        margin-top: 44px;
    }

    .lab-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .qc-body p {
        padding-left: 4px;
    }
}

@media (max-width: 520px) {
    .process-grid {
        grid-template-columns: 1fr;
    }

    .lab-grid {
        grid-template-columns: 1fr;
    }
}