/* 博客页面样式：排版与首页保持一致（bootstrap + index.css 之上的一层） */

/* 这套 bootstrap 默认把标题转成大写，首页标题用了 text-transform:none，这里保持一致 */
.blog-h1,
.blog-section h2,
.blog-related h2,
.blog-cta h2,
.blog-cta h3,
.blog-faq dt {
    text-transform: none;
}

/* 宽度交给 bootstrap .container（和页脚三列同一栏宽） */
.blog-wrap {
    padding: 104px 20px 0 20px;
}

.blog-layout {
    display: block;
}

.blog-crumb {
    font-size: .82rem;
    color: #adb5bd;
    margin-bottom: 1.2rem;
}
.blog-crumb a {
    color: #6c757d;
    text-decoration: none;
}
.blog-crumb a:hover {
    color: #212529;
    text-decoration: underline;
}
.blog-crumb-sep {
    margin: 0 .4rem;
}

.blog-header {
    margin-bottom: 1.6rem;
}

.blog-h1 {
    font-size: 2rem;
    line-height: 1.35;
    font-weight: 700;
    color: #212529;
    margin: 0 0 .8rem 0;
}

.blog-sub {
    color: #55595c;
    font-size: 1.02rem;
    line-height: 1.8;
    margin-bottom: 0;
}

.blog-meta {
    color: #8a8f95;
    font-size: .84rem;
}

.blog-lead,
.blog-article p {
    font-size: 1.02rem;
    line-height: 1.95;
    color: #333;
    margin-bottom: 1.05rem;
}

.blog-lead {
    font-size: 1.06rem;
    color: #2b2f33;
}

.blog-section h2 {
    font-size: 1.34rem;
    font-weight: 700;
    color: #212529;
    margin: 2.6rem 0 1rem 0;
    scroll-margin-top: 90px;
}

.blog-figure {
    margin: 1.6rem 0;
    text-align: center;
}
.blog-figure img {
    display: block;
    margin: 0 auto;
    max-width: 100%;
    max-height: 560px;
    width: auto;
    height: auto;
    border: 1px solid rgba(0, 0, 0, .08);
    border-radius: 12px;
    padding: 6px;
    background: #fff;
}
.blog-figure figcaption {
    color: #8a8f95;
    font-size: .82rem;
    margin-top: .6rem;
    text-align: center;
}

.blog-toc {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 1rem 1.2rem;
    margin: 1.8rem 0 0 0;
    font-size: .95rem;
}
.blog-toc-title {
    display: block;
    margin-bottom: .4rem;
    color: #212529;
}
.blog-toc ol {
    margin: 0;
    padding-left: 0;
    padding-inline-start: 1.3rem;
}
.blog-toc li {
    line-height: 1.9;
}
.blog-toc a {
    color: #55595c;
    text-decoration: none;
}
.blog-toc a:hover {
    color: #212529;
    text-decoration: underline;
}

.blog-steps {
    counter-reset: blogstep;
    list-style: none;
    padding-left: 0;
    margin: 1.2rem 0;
}
.blog-steps li {
    position: relative;
    padding-left: 0;
    padding-inline-start: 2.4rem;
    margin-bottom: .95rem;
    line-height: 1.85;
    color: #333;
}
.blog-steps li::before {
    counter-increment: blogstep;
    content: counter(blogstep);
    position: absolute;
    left: 0;
    inset-inline-start: 0;
    top: .3rem;
    width: 1.6rem;
    height: 1.6rem;
    line-height: 1.6rem;
    text-align: center;
    font-size: .8rem;
    font-weight: 700;
    color: #fff;
    background: #212529;
    border-radius: 50%;
}

.blog-tips {
    padding-left: 0;
    list-style: none;
    margin: 1.2rem 0;
}
.blog-tips li {
    position: relative;
    padding-left: 0;
    padding-inline-start: 1.5rem;
    margin-bottom: .8rem;
    line-height: 1.85;
    color: #333;
}
.blog-tips li::before {
    content: "";
    position: absolute;
    left: .25rem;
    inset-inline-start: .25rem;
    top: .75rem;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #212529;
}

.blog-note {
    background: #f8f9fa;
    border-left: 3px solid #212529;
    border-radius: 6px;
    padding: .85rem 1.1rem;
    color: #333;
    font-size: .96rem;
    line-height: 1.85;
    margin: 1.2rem 0;
}

.blog-inline-links {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin: 1.3rem 0 .4rem 0;
}

.blog-faq dt {
    font-weight: 600;
    color: #212529;
    margin-top: 1.3rem;
    line-height: 1.7;
}
.blog-faq dd {
    color: #55595c;
    line-height: 1.9;
    margin: .4rem 0 0 0;
}

.blog-cta {
    background: #f8f9fa;
    border-radius: 14px;
    padding: 2rem 1.5rem;
    text-align: center;
    margin: 3rem 0;
}
.blog-cta h2,
.blog-cta h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #212529;
    margin-bottom: .8rem;
}
.blog-cta p {
    color: #55595c;
    line-height: 1.85;
    margin-bottom: 1.4rem;
}
.blog-cta-btns {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    justify-content: center;
}

.blog-related {
    margin: 3rem 0 1rem 0;
}
.blog-related h2 {
    font-size: 1.2rem;
    font-weight: 700;
    color: #212529;
    margin-bottom: 1.2rem;
}

/* 文章列表：横向行式，竖图当缩略图 */
.blog-list {
    margin-top: 2.2rem;
}
.blog-row {
    display: flex;
    gap: 1.4rem;
    padding: 1.3rem 0;
    border-top: 1px solid #eceef0;
    color: inherit;
    text-decoration: none;
}
.blog-list > .blog-row:last-child {
    border-bottom: 1px solid #eceef0;
}
.blog-row:hover {
    color: inherit;
}
.blog-row:hover .blog-row-title {
    text-decoration: underline;
}
.blog-row-img {
    flex: 0 0 150px;
}
.blog-row-img img {
    display: block;
    width: 150px;
    height: 188px;
    object-fit: cover;
    object-position: center 22%;
    border: 1px solid rgba(0, 0, 0, .08);
    border-radius: 10px;
}
.blog-row-body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
}
.blog-row-title {
    font-size: 1.16rem;
    font-weight: 700;
    line-height: 1.5;
    color: #212529;
    margin-bottom: .55rem;
}
.blog-row-desc {
    font-size: .92rem;
    line-height: 1.75;
    color: #6c757d;
    margin-bottom: .7rem;
    /* 列表里摘要最多两行，让每行高度一致 */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.blog-row-meta {
    font-size: .78rem;
    color: #adb5bd;
}

/* 相关文章：更紧凑的一行 */
.blog-row-sm {
    padding: 1.1rem 0;
}
.blog-row-sm .blog-row-img {
    flex-basis: 84px;
}
.blog-row-sm .blog-row-img img {
    width: 84px;
    height: 105px;
}
.blog-row-sm .blog-row-title {
    font-size: .98rem;
    line-height: 1.45;
    margin-bottom: .35rem;
}
.blog-row-sm .blog-row-meta {
    font-size: .74rem;
}

@media (max-width: 576px) {
    .blog-row {
        gap: .9rem;
        padding: 1.1rem 0;
    }
    .blog-row-img {
        flex-basis: 108px;
    }
    .blog-row-img img {
        width: 108px;
        height: 136px;
    }
    .blog-row-title {
        font-size: 1.04rem;
        margin-bottom: .3rem;
    }
    .blog-row-desc {
        display: none;
    }
}

@media (max-width: 768px) {
    .blog-wrap {
        padding-top: 88px;
    }
    .blog-h1 {
        font-size: 1.55rem;
    }
    .blog-figure img {
        max-height: 420px;
    }
}

/* 宽屏：正文一栏 + 右侧相关文章一栏，整体和页脚对齐 */
.blog-rail {
    margin-top: 3rem;
}
.blog-rail-title {
    font-size: 1.16rem;
    font-weight: 700;
    color: #212529;
    margin-bottom: .6rem;
}
.blog-rail .blog-list {
    margin-top: 0;
}

@media (min-width: 1200px) {
    .blog-layout {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 330px;
        gap: 3.5rem;
        align-items: start;
    }
    .blog-article {
        max-width: 880px;
    }
    .blog-rail {
        margin-top: 0;
        position: sticky;
        top: 100px;
    }
}

/* 宽屏列表排成两列，铺满整栏（和页脚同宽） */
@media (min-width: 1200px) {
    .blog-list {
        display: grid;
        grid-template-columns: 1fr 1fr;
        column-gap: 3.5rem;
    }
    /* 两列时最后一行两格都要收口 */
    .blog-wrap > .blog-list > .blog-row:nth-last-child(-n+2) {
        border-bottom: 1px solid #eceef0;
    }
    .blog-rail .blog-list {
        grid-template-columns: 1fr;
    }
}

/* 单列时摘要别拉太长 */
@media (min-width: 992px) and (max-width: 1199px) {
    .blog-row-desc {
        max-width: 78ch;
    }
}

/* 404 页面 */
.nf-wrap {
    padding: 1rem 0 0 0;
}
.nf-text {
    max-width: 60em;
}
.nf-code {
    font-size: 4.4rem;
    font-weight: 700;
    line-height: 1;
    color: #dee2e6;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}
.nf-title {
    font-size: 1.7rem;
    font-weight: 700;
    color: #212529;
    text-transform: none;
    margin-bottom: .9rem;
}
.nf-text {
    font-size: 1.02rem;
    line-height: 1.9;
    color: #55595c;
    margin-bottom: 1.8rem;
}
.nf-btns {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    margin-bottom: 3.2rem;
}
.nf-tools-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: #212529;
    text-transform: none;
    margin-bottom: .9rem;
}
.nf-tool-links {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem .8rem;
}
.nf-tool {
    font-size: .92rem;
    color: #55595c;
    text-decoration: none;
    padding: .35rem .8rem;
    border: 1px solid #e4e7ea;
    border-radius: 999px;
}
.nf-tool:hover {
    color: #212529;
    border-color: #adb5bd;
    text-decoration: none;
}

@media (max-width: 576px) {
    .nf-code {
        font-size: 3.4rem;
    }
    .nf-title {
        font-size: 1.4rem;
    }
    .nf-btns {
        margin-bottom: 2.4rem;
    }
}