.material_wrap {
    max-width: 1440px;
    margin: 0 auto;
    padding: 50px 20px 70px;
    box-sizing: border-box;
}

/* 顶部说明文字 */
.material_intro {
    background: #fff;
    border-radius: 12px;
    padding: 32px;
    margin-bottom: 40px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    border: 1px solid #f0f0f0;
    font-size: 15px;
    line-height: 2;
    color: #444;
}
.list_banner{
    position: relative;
    width: 100%;
    height: 330px;
    overflow: hidden;
    box-sizing: border-box;
}
.list_banner_img{
    position: absolute;
    inset: 0;
}
.list_banner_img img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.list_banner_mask{
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(0,0,0,.55) 0%, rgba(0,0,0,.35) 100%);
}
.list_banner_text{
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 20px;
    color: #fff;
    box-sizing: border-box;
}
.list_banner_title{
    margin: 0 0 16px;
    font-size: 44px;
    font-weight: 700;
    letter-spacing: 4px;
    text-shadow: 0 2px 8px rgba(0,0,0,.35);
}
.list_banner_title::after{
    content: "";
    display: block;
    width: 70px;
    height: 4px;
    background: #4ec548;
    border-radius: 2px;
    margin-top: 14px;
    box-shadow: 0 2px 6px rgba(10,153,2,.4);
}
.list_banner_sub{
    margin: 0;
    font-size: 16px;
    opacity: .85;
    letter-spacing: 1px;
}

@media (max-width: 900px) {
    .list_banner{ height: 220px; }
    .list_banner_title{ font-size: 30px; letter-spacing: 2px; }
    .list_banner_title::after{ width: 50px; height: 3px; margin-top: 10px; }
    .list_banner_sub{ font-size: 14px; }
    .list_banner_text{ padding: 0 24px; }
}
@media (max-width: 560px) {
    .list_banner{ height: 180px; }
    .list_banner_title{ font-size: 24px; }
    .list_banner_sub{ font-size: 13px; }
}

:root {
    --lw-primary: #4ec548;
    --lw-primary-light: #e8f5e8;
    --lw-text: #1a1a1a;
    --lw-muted: #888;
    --lw-line: #ececec;
    --lw-radius: 10px;
    --lw-shadow: 0 2px 12px rgba(0,0,0,.04);
    --lw-shadow-hover: 0 8px 24px rgba(10,153,2,.18);
    --lw-max-width: 1200px;
}

.material_intro strong {
    color: #f19b00;
}

.material_intro .highlight {
    background: #fff8ec;
    border-left: 4px solid #f19b00;
    padding: 14px 18px;
    margin: 18px 0;
    border-radius: 0 8px 8px 0;
    color: #333;
}

.material_intro .formula {
    background: #f8f9fa;
    padding: 14px 18px;
    border-radius: 8px;
    margin: 16px 0;
    font-family: "Times New Roman", serif;
    font-size: 16px;
    color: #1a1a1a;
}

/* 大标题 */
.material_title {
    font-size: 32px;
    font-weight: 800;
    color: #1a1a1a;
    text-align: center;
    margin: 0 0 12px;
    letter-spacing: 2px;
}

.material_subtitle {
    font-size: 18px;
    color: #f19b00;
    font-weight: 700;
    margin: 0 0 35px;
    padding-bottom: 18px;
    border-bottom: 3px solid #f19b00;
    display: inline-block;
}

.material_header {
    text-align: center;
    margin-bottom: 30px;
}

/* 表格容器：PC端最大宽度1200px，小屏可横向滚动 */
.material_table_box {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 24px rgba(0,0,0,0.08);
    padding: 6px;
    box-sizing: border-box;
}

.material_table_box::-webkit-scrollbar {
    height: 8px;
}

.material_table_box::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.material_table_box::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

.material_table_box::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}

/* 表格本体 */
.material_table {
    width: 100%;
    table-layout: fixed;
    border-collapse: collapse;
    font-size: 14px;
    color: #333;
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
}

.material_table td,
.material_table th {
    padding: 14px 16px;
    border: 1px solid #e8e8e8;
    vertical-align: middle;
    line-height: 1.6;
}

/* 表头 */
.material_table thead td,
.material_table tr.firstRow td,
.material_table tr:first-child td {
    background: #444444;
    color: #fff;
    font-weight: 700;
    text-align: center;
    border-color: #333333;
    font-size: 15px;
}

.material_table thead td strong,
.material_table tr.firstRow td strong,
.material_table tr:first-child td strong {
    color: #fff;
    font-weight: 700;
}

/* 表头hover不变色 */
.material_table thead tr:hover td,
.material_table tr.firstRow:hover td,
.material_table tr:first-child:hover td {
    background: #444444 !important;
    color: #fff !important;
}

/* 第二行表头（甲：乙 / kg/m2 / kg/套） */
.material_table tbody tr:nth-child(1) td,
.material_table tbody tr:nth-child(2) td {
    background: #555555;
    color: #fff;
    font-weight: 600;
    text-align: center;
}

/* 第二行表头hover不变色 */
.material_table tbody tr:nth-child(1):hover td,
.material_table tbody tr:nth-child(2):hover td {
    background: #555555 !important;
    color: #fff !important;
}

/* 普通行 */
.material_table tbody tr td {
    background: #fff;
}


.material_table tbody tr:hover td {
    background: #fff8ec;
}


.material_table tbody tr.section_row td,
.material_table td[colspan="7"] {
    background: #fff5e6;
    font-weight: 700;
    color: #333;
    text-align: left;
    font-size: 16px;
    padding: 16px;
}

.material_table td[colspan="7"] strong {
    color: #f19b00;
    font-size: 16px;
}

/* 说明列 */
.material_table td:last-child {
    text-align: left;
    color: #555;
    min-width: 150px;
}

.material_table td:last-child p {
    margin: 0 0 6px;
    line-height: 1.7;
}

.material_table td:last-child p:last-child {
    margin-bottom: 0;
}

/* 各列宽度设置 */
.material_table td:nth-child(1) {
    width: 20%;
    min-width: 80px;
}

.material_table td:nth-child(2) {
    width: 12%;
    min-width: 50px;
    font-weight: 600;
    color: #1a1a1a;
    white-space: nowrap;
}

.material_table td:nth-child(3) {
    width: 8%;
    min-width: 40px;
    white-space: nowrap;
}

.material_table td:nth-child(4) {
    width: 8%;
    min-width: 50px;
    white-space: nowrap;
}

.material_table td:nth-child(5) {
    width: 8%;
    min-width: 50px;
    white-space: nowrap;
}

.material_table td:nth-child(6) {
    width: 8%;
    min-width: 40px;
    white-space: nowrap;
}

.material_table td:nth-child(7) {
    width: 36%;
    min-width: 100px;
}

/* 备注行 */
.material_notes {
    margin-top: 30px;
    background: #f8f9fa;
    border-radius: 10px;
    padding: 24px 28px;
    border-left: 4px solid #f19b00;
    font-size: 14px;
    line-height: 2;
    color: #555;
}

.material_notes p {
    margin: 0;
}

/* Banner 标题调整 */
.park_banner_title {
    letter-spacing: 6px;
}

/* 响应式 */
@media (max-width: 1024px) {
    .material_wrap {
        padding: 35px 16px 50px;
    }
    .material_intro {
        padding: 22px;
    }
    .material_title {
        font-size: 26px;
    }
    .material_subtitle {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .material_wrap {
        padding: 25px 12px 40px;
    }
    .material_intro {
        padding: 18px;
        font-size: 14px;
    }
    .material_title {
        font-size: 22px;
    }
    .material_subtitle {
        font-size: 15px;
        margin-bottom: 22px;
    }
    .material_table td,
    .material_table th {
        padding: 10px 12px;
        font-size: 13px;
    }
    .material_notes {
        padding: 18px;
        font-size: 13px;
    }
    .material_table {
        min-width: 960px;
    }
}