.detail-subnav {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    justify-content: center;
    gap: 40px;
    padding: 17px 20px;
    background: rgba(255, 255, 255, .96);
    border-bottom: 1px solid #dbe6f1
}

.detail-subnav a {
    color: #334155;
    font-weight: 700
}

.detail-subnav a:hover {
    color: #004b92
}

.connectivity-intro {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 80px;
    padding: 90px 0;
    align-items: center
}

.connectivity-copy>p:not(.section-kicker) {
    color: #64748b;
    font-size: 17px
}

.value-list {
    list-style: none;
    margin: 34px 0 0;
    padding: 0;
    border-top: 1px solid #cbd8e5
}

.value-list li {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 24px;
    padding: 19px 0;
    border-bottom: 1px solid #cbd8e5
}

.value-list strong {
    color: #011f69
}

.value-list span {
    color: #64748b;
    font-size: 14px
}

.connectivity-visual {
    position: relative;
    min-height: 420px;
    padding: 38px;
    background: #011f69 url("images/connectivity-visual_bg.jpg") center / cover no-repeat;
    overflow: hidden;
    color: #fff;
    border-radius: 6px
}

/* 背景图亮部之上叠深空蓝渐变，保证白色统计数字可读（文字层 z-index:1 在其上） */
.connectivity-visual::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(1, 31, 105, .62) 0%, rgba(1, 31, 105, .30) 45%, rgba(1, 31, 105, .58) 100%);
    pointer-events: none
}

.connectivity-visual>img {
    position: absolute;
    inset: 24px;
    width: calc(100% - 48px);
    height: 230px;
    object-fit: contain;
    filter: brightness(0) invert(1);
    opacity: .38
}

/* 面板顶部标题（填补上半区留白，2026-08-20 加） */
.visual-head {
    position: relative;
    z-index: 1
}

.visual-head .visual-kicker {
    color: #78bfff;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .14em
}

.visual-head h3 {
    color: #fff;
    font-size: 22px;
    margin: 8px 0 0
}

.coverage-figures {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    margin-top: 118px
}

/* 统计块透明坐在背景图上：无底色、无描边（描边实测突兀，2026-08-20 去除） */
.coverage-figures div {
    padding: 20px 22px
}

.coverage-figures strong {
    display: block;
    color: #fff;
    font-size: 38px
}

.coverage-figures span {
    display: block;
    color: #b9cce2;
    font-size: 13px
}

.connectivity-visual>p {
    position: relative;
    z-index: 1;
    color: #b9cce2;
    font-size: 13px;
    margin: 24px 0 0
}

.format-section,
.deployment-section {
    padding: 88px 0;
    background: #fff;
    box-shadow: 0 0 0 100vmax #fff;
    clip-path: inset(0 -100vmax)
}

.format-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 40px
}

.format-grid article {
    padding: 28px;
    border: 1px solid #dbe6f1;
    border-top: 3px solid #3e8ccf
}

.format-grid img {
    width: 46px;
    height: 46px;
    object-fit: contain;
    margin-bottom: 28px
}

.format-grid iconify-icon {
    font-size: 46px;
    margin-bottom: 28px
}

.format-grid span,
.matching-grid span {
    color: #3e8ccf;
    font-size: 12px;
    font-weight: 800
}

.format-grid h3 {
    font-size: 22px;
    margin-top: 13px
}

.format-grid p {
    color: #64748b;
    font-size: 14px;
    min-height: 88px
}

.format-grid strong {
    display: block;
    padding-top: 17px;
    border-top: 1px solid #dbe6f1;
    color: #53677e;
    font-size: 12px
}

.matching-section {
    padding: 88px 0;
    background: #011f69;
    color: #fff;
    box-shadow: 0 0 0 100vmax #011f69;
    clip-path: inset(0 -100vmax)
}

.matching-head {
    display: grid;
    grid-template-columns: 1fr .9fr;
    gap: 70px;
    align-items: end
}

.matching-head > .section-kicker {
    grid-column: 1
}

.matching-head > h2 {
    grid-column: 1
}

.matching-head > p:last-child {
    grid-column: 2;
    grid-row: 1 / 3
}

.matching-head h2 {
    color: #fff;
    margin-bottom: 0
}

.matching-head>p:last-child {
    color: #b9cce2;
    margin: 0
}

.matching-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    margin-top: 42px;
    border-top: 1px solid rgba(255, 255, 255, .2);
    border-left: 1px solid rgba(255, 255, 255, .2)
}

.matching-grid article {
    padding: 24px;
    border-right: 1px solid rgba(255, 255, 255, .2);
    border-bottom: 1px solid rgba(255, 255, 255, .2);
    min-height: 160px
}

.matching-grid h3 {
    color: #fff;
    font-size: 18px;
    margin: 20px 0 7px
}

.matching-grid p {
    color: #b9cce2;
    font-size: 13px;
    margin: 0
}

.management-section {
    display: grid;
    grid-template-columns: .85fr 1.15fr;
    gap: 82px;
    padding: 90px 0;
    align-items: start
}

.management-copy>p:not(.section-kicker) {
    color: #64748b
}

.management-copy .text-link {
    display: inline-block;
    margin-top: 20px
}

.management-list {
    margin: 0;
    border-top: 1px solid #cbd8e5
}

.management-list div {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 24px;
    padding: 21px 0;
    border-bottom: 1px solid #cbd8e5
}

.management-list dt {
    font-weight: 800;
    color: #011f69
}

.management-list dd {
    margin: 0;
    color: #64748b
}

.deployment-section .content-heading {
    max-width: 820px
}

.detail-steps {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    list-style: none;
    margin: 42px 0 0;
    padding: 0;
    border-top: 1px solid #cbd8e5;
    border-bottom: 1px solid #cbd8e5
}

.detail-steps li {
    padding: 25px 22px;
    border-right: 1px solid #cbd8e5;
    min-height: 190px
}

.detail-steps li:last-child {
    border-right: 0
}

.detail-steps span {
    color: #3e8ccf;
    font-weight: 800
}

.detail-steps h3 {
    font-size: 18px;
    margin-top: 34px
}

.detail-steps p {
    color: #64748b;
    font-size: 13px
}

.deployment-action {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-top: 32px
}

.use-models {
    padding: 82px 0
}

.use-models>div:first-child {
    display: grid;
    grid-template-columns: .7fr 1.3fr;
    gap: 50px;
    align-items: end
}

.use-models>div:first-child h2 {
    margin-bottom: 0
}

.use-model-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    margin: 38px 0 24px;
    border-top: 1px solid #cbd8e5;
    border-left: 1px solid #cbd8e5
}

.use-model-grid article {
    padding: 26px;
    border-right: 1px solid #cbd8e5;
    border-bottom: 1px solid #cbd8e5
}

.use-model-grid span {
    color: #3e8ccf;
    font-size: 12px;
    font-weight: 800
}

.use-model-grid h3 {
    font-size: 20px;
    margin: 19px 0 8px
}

.use-model-grid p {
    color: #64748b;
    font-size: 14px;
    margin: 0
}

@media(max-width:900px) {

    .connectivity-intro,
    .matching-head,
    .management-section {
        grid-template-columns: 1fr;
        gap: 34px
    }

    .format-grid {
        grid-template-columns: 1fr 1fr
    }

    .matching-grid {
        grid-template-columns: 1fr 1fr
    }

    .detail-steps {
        grid-template-columns: 1fr 1fr
    }

    .detail-steps li {
        border-bottom: 1px solid #cbd8e5
    }

    .use-models>div:first-child {
        grid-template-columns: 1fr
    }

    .detail-subnav {
        justify-content: flex-start;
        overflow-x: auto;
        white-space: nowrap
    }
}

@media(max-width:620px) {
    .detail-subnav {
        gap: 24px
    }

    .connectivity-intro,
    .format-section,
    .matching-section,
    .management-section,
    .deployment-section,
    .use-models {
        padding: 64px 0
    }

    .connectivity-visual {
        min-height: 390px;
        padding: 24px
    }

    .coverage-figures {
        margin-top: 205px
    }

    .coverage-figures strong {
        font-size: 30px
    }

    .value-list li,
    .management-list div {
        grid-template-columns: 1fr;
        gap: 5px
    }

    .format-grid,
    .matching-grid,
    .detail-steps,
    .use-model-grid {
        grid-template-columns: 1fr
    }

    .format-grid p {
        min-height: 0
    }

    .matching-grid article {
        min-height: 0
    }

    .detail-steps li {
        border-right: 0;
        min-height: 0
    }

    .detail-steps h3 {
        margin-top: 18px
    }

    .deployment-action {
        align-items: flex-start;
        flex-direction: column
    }

    .use-model-grid {
        border-left: 0
    }

    .use-model-grid article {
        border-left: 1px solid #cbd8e5
    }
}