/* ================= 核心产品板块（版式参照 sunhetech.cn 产品矩阵） ================= */
.sdz-pro {
    padding: 88px 0 92px;
    background: #fff;
    border-bottom: 1px solid #eef1f5;
}

.sdz-pro__inner {
    width: 1400px;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 24px;
    box-sizing: border-box;
}

.sdz-pro__head {
    max-width: 780px;
    margin: 0 auto 52px;
    text-align: center;
}

.sdz-pro__kicker {
    display: inline-block;
    font-size: 12.5px;
    font-weight: 800;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: #0a5aa8;
    margin-bottom: 14px;
}

.sdz-pro__title {
    font-size: 30px;
    line-height: 1.32;
    font-weight: 700;
    color: #0b1526;
    margin: 0 0 14px;
}

.sdz-pro__rule {
    width: 64px;
    height: 4px;
    border-radius: 4px;
    margin: 18px auto 0;
    background: linear-gradient(90deg, #013972, #2f80c9);
}

.sdz-pro__lead {
    margin: 20px 0 0;
    font-size: 16px;
    line-height: 1.8;
    color: #7b8a9d;
}

.sdz-pro__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}

.sdz-pro__card {
    background: #fff;
    border: 1px solid #e6ebf1;
    border-radius: 20px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}

.sdz-pro__card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 48px -16px rgba(11, 21, 38, .22);
    border-color: rgba(1, 57, 114, .35);
}

.sdz-pro__media {
    display: block;
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: #fff;
}

.sdz-pro__media img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 20px 24px;
    box-sizing: border-box;
    transition: transform .5s ease;
}

.sdz-pro__card:hover .sdz-pro__media img {
    transform: scale(1.06);
}

.sdz-pro__body {
    padding: 24px 24px 26px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.sdz-pro__name {
    font-size: 17px;
    line-height: 1.5;
    font-weight: 700;
    margin: 0 0 10px;
}

.sdz-pro__name a {
    color: #0b1526;
    text-decoration: none;
    transition: color .25s;
}

.sdz-pro__name a:hover {
    color: #0a5aa8;
}

.sdz-pro__desc {
    margin: 0;
    flex: 1;
    font-size: 14.5px;
    line-height: 1.78;
    color: #7b8a9d;
}

@media (max-width: 1450px) {
    .sdz-pro__inner { width: auto; }
}

@media (max-width: 1024px) {
    .sdz-pro { padding: 64px 0 70px; }
    .sdz-pro__grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .sdz-pro__head { margin-bottom: 38px; }
    .sdz-pro__title { font-size: 26px; }
}

@media (max-width: 640px) {
    .sdz-pro { padding: 48px 0 54px; }
    .sdz-pro__grid { grid-template-columns: 1fr; }
    .sdz-pro__title { font-size: 22px; }
    .sdz-pro__lead { font-size: 14.5px; }
    .sdz-pro__media img { padding: 18px 22px; }
}