/*---------------------------------------------------------------------- /
巨幕设置-开始
----------------------------------------------------------------------- */

.jm {
    background: url('../../images/banner/lib.jpg') no-repeat;
    position: relative;
    background-size: cover;
    height: 600px
}

@media screen and (max-width:1680px) {
    .jm {
        height: 525px
    }
}

@media screen and (max-width:1440px) {
    .jm {
        height: 450px
    }
}

@media screen and (max-width:1280px) {
    .jm {
        height: 400px
    }
}

@media screen and (max-width: 1279px) {
    .jm {
        margin-top: -30px;
        height: 300px;
    }
}

@media screen and (max-width: 810px) {
    .jm {
        margin-top: 0px;
        height: 260px;
    }
}

@media screen and (max-width:580px) {
    .jm {
        background-size: contain;
        background: url('../../images/banner/h5/lib-iphone.jpg') no-repeat;
        background-position: left;
        height: 200px;
        display: block
    }
}


/*---------------------------------------------------------------------- /
巨幕设置-结束
----------------------------------------------------------------------- */


/*---------------------------------------------------------------------- /
面包屑-开始
----------------------------------------------------------------------- */

.mbx-row {
    height: 100px;
    border-bottom: 1px solid #e7e7e7;
    margin-bottom: 30px;
    display: flex;
    flex-direction: row;
    align-items: center
}

.mbx-text p {
    font-size: 15px;
    font-style: normal;
    display: inline-block;
    font-weight: 800;
    padding-top: 8px
}

.mbx-text p::after {
    display: inline-block;
    content: '\00bb';
    margin: 0 .6em;
    color: black
}

.mbx-text p:last-child::after {
    display: none
}

@media screen and (max-width:580px) {
    .mbx-text p {
        font-size: 13px;
    }
}


/*---------------------------------------------------------------------- /
面包屑-结束
----------------------------------------------------------------------- */


/*---------------------------------------------------------------------- /
文章内容-开始 （来源：工业废水空气与纯氧射流曝气系统选型指南）
----------------------------------------------------------------------- */

.air-oxygen-article {
    --navy: #143642;
    --teal: #075b54;
    --teal-2: #0b756b;
    --teal-soft: #e8f4f1;
    --orange: #f2a23a;
    --orange-soft: #fff4e2;
    --ink: #26363d;
    --muted: #65767d;
    --line: #bdcbd0;
    --paper: #f6f9f9;
    --white: #fff;
    --shadow: 0 18px 50px rgba(20, 54, 66, .11);
    color: var(--ink);
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    line-height: 1.72;
    margin-bottom: 30px;
}

.air-oxygen-article * {
    box-sizing: border-box;
}

.air-oxygen-article .page {
    width: min(1180px, 100%);
    margin: 0 auto;
    background: var(--white);
    box-shadow: var(--shadow);
    border-radius: 16px;
    overflow: hidden;
}

.air-oxygen-article .hero {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(330px, .75fr);
    gap: 32px;
    padding: 54px 56px 34px;
    align-items: center;
    background: radial-gradient(circle at 84% 18%, rgba(11, 117, 107, .09), transparent 28%), linear-gradient(180deg, #fff, #fbfdfd);
}

.air-oxygen-article .eyebrow {
    margin: 0 0 8px;
    color: #d98212;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.air-oxygen-article .hero h1 {
    margin: 0;
    color: var(--navy);
    font-size: clamp(18px, 2.2vw, 24px);
    line-height: 1.4;
    letter-spacing: -.01em;
}

.air-oxygen-article .keywords {
    margin: 16px 0 22px;
    color: var(--teal);
    font-size: 17px;
}

.air-oxygen-article .answer {
    margin: 0;
    padding: 18px 20px;
    background: var(--teal-soft);
    border: 1px solid #8fc7be;
    border-radius: 10px;
    color: var(--navy);
    font-size: 16px;
    line-height: 1.58;
}

.air-oxygen-article .meta {
    margin: 11px 0 0;
    color: var(--muted);
    font-size: 13px;
}

.air-oxygen-article .hero-figure {
    margin: 0;
}

.air-oxygen-article .hero-figure img {
    width: 100%;
    height: auto;
    display: block;
}

.air-oxygen-article .hero-figure figcaption {
    margin-top: 8px;
    color: var(--muted);
    font-size: 12px;
    text-align: center;
}

.air-oxygen-article .summary {
    margin: 0 56px 12px;
    padding: 18px 20px;
    border-left: 4px solid var(--orange);
    background: var(--orange-soft);
    color: #674315;
    border-radius: 0 8px 8px 0;
}

.air-oxygen-article .air-nav {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    gap: 8px;
    padding: 12px 56px;
    overflow-x: auto;
    background: rgba(7, 84, 78, .96);
    backdrop-filter: blur(8px);
}

.air-oxygen-article .air-nav a {
    flex: 0 0 auto;
    color: #fff;
    text-decoration: none;
    font-size: 13px;
    padding: 6px 10px;
    border-radius: 999px;
}

.air-oxygen-article .air-nav a:hover {
    background: rgba(255, 255, 255, .15);
}

.air-oxygen-article .air-main {
    padding: 14px 56px 56px;
}

.air-oxygen-article section {
    padding: 25px 0 8px;
    scroll-margin-top: 64px;
}

.air-oxygen-article h2 {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0 0 14px;
    color: var(--teal);
    font-size: 25px;
    line-height: 1.3;
    font-weight: 700;
}

.air-oxygen-article h2::after {
    content: "";
    height: 1px;
    flex: 1;
    background: linear-gradient(90deg, var(--line), transparent);
}

.air-oxygen-article h3 {
    margin: 22px 0 10px;
    color: var(--navy);
    font-size: 18px;
    font-weight: 700;
}

.air-oxygen-article .table-wrap {
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: 9px;
}

.air-oxygen-article table {
    width: 100%;
    border-collapse: collapse;
    min-width: 760px;
    font-size: 13px;
    line-height: 1.5;
}

.air-oxygen-article th,
.air-oxygen-article td {
    padding: 10px 12px;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

.air-oxygen-article th:last-child,
.air-oxygen-article td:last-child {
    border-right: 0;
}

.air-oxygen-article tr:last-child td {
    border-bottom: 0;
}

.air-oxygen-article thead th {
    color: #fff;
    background: var(--teal);
    font-weight: 700;
}

.air-oxygen-article tbody tr:nth-child(even) {
    background: var(--paper);
}

.air-oxygen-article .note {
    margin: 12px 0 0;
    padding: 13px 15px;
    color: #704717;
    background: var(--orange-soft);
    border: 1px solid #e9b86d;
    border-radius: 8px;
    font-size: 13px;
}

.air-oxygen-article .case-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.air-oxygen-article .case-card {
    border: 1px solid var(--line);
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
}

.air-oxygen-article .case-card h3 {
    margin: 0;
    padding: 13px 16px;
    color: #fff;
    background: var(--teal);
    font-size: 17px;
}

.air-oxygen-article .case-card dl {
    display: grid;
    grid-template-columns: 115px 1fr;
    margin: 0;
    font-size: 13px;
}

.air-oxygen-article .case-card dt,
.air-oxygen-article .case-card dd {
    margin: 0;
    padding: 9px 12px;
    border-bottom: 1px solid var(--line);
}

.air-oxygen-article .case-card dt {
    color: var(--navy);
    font-weight: 700;
    background: var(--paper);
}

.air-oxygen-article .case-card dt:last-of-type,
.air-oxygen-article .case-card dd:last-of-type {
    border-bottom: 0;
}

.air-oxygen-article .faq details {
    border: 1px solid var(--line);
    border-radius: 8px;
    margin: 8px 0;
    background: #fff;
}

.air-oxygen-article .faq summary {
    cursor: pointer;
    padding: 13px 16px;
    color: var(--navy);
    font-weight: 700;
}

.air-oxygen-article .faq p {
    margin: 0;
    padding: 0 16px 15px;
}

.air-oxygen-article .sources {
    color: var(--muted);
    font-size: 12px;
}

.air-oxygen-article .sources li {
    margin: 5px 0;
}

.air-oxygen-article .confirm {
    color: var(--teal);
    font-weight: 700;
}

@media (max-width: 820px) {
    .air-oxygen-article .page {
        width: 100%;
        margin: 0;
        border-radius: 0;
    }
    .air-oxygen-article .hero {
        grid-template-columns: 1fr;
        padding: 34px 22px 24px;
    }
    .air-oxygen-article .hero-figure {
        max-width: 560px;
        margin: auto;
    }
    .air-oxygen-article .summary {
        margin: 0 22px 10px;
    }
    .air-oxygen-article .air-nav {
        padding: 10px 22px;
    }
    .air-oxygen-article .air-main {
        padding: 8px 22px 36px;
    }
    .air-oxygen-article .case-grid {
        grid-template-columns: 1fr;
    }
}

@media print {
    @page {
        size: A4 landscape;
        margin: 12mm;
    }
    .air-oxygen-article {
        color: #000;
        font-size: 10pt;
    }
    .air-oxygen-article .air-nav {
        display: none;
    }
    .air-oxygen-article .page {
        width: auto;
        margin: 0;
        box-shadow: none;
        border-radius: 0;
    }
    .air-oxygen-article .hero {
        padding: 0 0 8mm;
        grid-template-columns: 1.3fr .7fr;
    }
    .air-oxygen-article .summary {
        margin: 0 0 4mm;
    }
    .air-oxygen-article .air-main {
        padding: 0;
    }
    .air-oxygen-article section {
        break-inside: avoid;
        padding: 4mm 0 0;
    }
    .air-oxygen-article .table-wrap {
        overflow: visible;
    }
    .air-oxygen-article table {
        min-width: 0;
        font-size: 7.6pt;
    }
    .air-oxygen-article th,
    .air-oxygen-article td {
        padding: 4px 5px;
    }
    .air-oxygen-article .case-card,
    .air-oxygen-article .faq details {
        break-inside: avoid;
    }
}


/* 返回按钮 */

.fhbox {
    border: 1px solid #e7e7e7;
    border-radius: 4px;
    padding: 6px 12px;
    width: auto;
    display: inline-flex;
    margin-left: 35px;
    margin-bottom: 15px;
}

.fhbox .fhbutton {
    color: #000;
    font-size: 15px;
    padding-left: 5px;
    padding-right: 5px;
    text-decoration: none;
}


/*---------------------------------------------------------------------- /
文章内容-结束
----------------------------------------------------------------------- */