/* ==========================================
   Blog Detail Page (Optimized & Sticky Fixed)
   ========================================== */

/* ---------- Hero 区域 ---------- */
.bd-hero {
    position: relative;
    min-height: 340px;
    display: flex;
    align-items: center;
    padding: 60px 20px 50px;
    color: #fff;
    overflow: hidden;
    background: var(--c-dark);
}

/* 背景图 */
.bd-hero-bg {
    position: absolute;
    inset: 0;
    background: url('/images/banner/automated-aluminum-extrusion-factory.webp') center/cover no-repeat;
    z-index: 0;
    transition: transform 10s ease-out;
}

.bd-hero:hover .bd-hero-bg {
    transform: scale(1.05);
}

/* 渐变遮罩 */
.bd-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg,
        rgba(15, 42, 74, 0.95) 0%,
        rgba(15, 42, 74, 0.78) 60%,
        rgba(15, 42, 74, 0.5) 100%);
    z-index: 1;
}

.bd-hero-content {
    position: relative;
    z-index: 2;
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 面包屑 */
.bd-hero-breadcrumb {
    font-size: 13px;
    color: var(--c-text-light);
    margin-bottom: 20px;
    letter-spacing: 0.3px;
    opacity: 0.8;
}

.bd-hero-breadcrumb a {
    color: var(--c-text-light);
    text-decoration: none;
    transition: color var(--ease);
}

.bd-hero-breadcrumb a:hover { color: var(--c-primary-light); }

.bd-bc-sep { margin: 0 8px; color: var(--c-text-soft); }
.bd-bc-current { color: var(--c-border); font-weight: 600; }

/* Hero 标签 */
.bd-hero-label {
    display: inline-block;
    color: var(--c-primary-light);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 14px;
}

.bd-hero h1 {
    font-size: 36px;
    font-weight: 800;
    line-height: 1.25;
    margin: 0 0 20px;
    letter-spacing: -0.5px;
    color: #fff;
    text-wrap: balance;
}

.bd-hero-meta {
    display: flex;
    align-items: center;
    gap: 24px;
    font-size: 13px;
    color: var(--c-text-faint);
    flex-wrap: wrap;
}

.bd-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* ---------- 主体区域 ---------- */
.bd-main {
    padding: 60px 20px 90px;
    background: var(--c-bg-soft);
}

.bd-main-inner {
    max-width: 1360px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 40px;
    align-items: start;
    overflow: visible !important;
}

/* ---------- 文章卡片 ---------- */
.bd-article {
    background: var(--c-bg-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-xl);
    overflow: visible; 
    box-shadow: var(--shadow-sm);
    min-height: 600px;
    transition: box-shadow 0.3s ease;
}

.bd-article:hover {
    box-shadow: var(--shadow-md);
}

/* 封面图 */
.bd-cover {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--c-border-light);
    border-top-left-radius: var(--radius-xl);
    border-top-right-radius: var(--radius-xl);
}

.bd-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.bd-cover:hover img {
    transform: scale(1.03);
}

/* ---------- 导语段落 ---------- */
.bd-lead {
    padding: 44px 60px 0;
}

.bd-lead p {
    margin: 0;
    font-size: 18px;
    line-height: 1.75;
    font-weight: 500;
    color: var(--c-text);
    padding-bottom: 32px;
    border-bottom: 1px solid var(--c-border);
    position: relative;
}

.bd-lead p::after {
    content: "";
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--c-primary), var(--c-primary-light));
}

/* ---------- 正文排版（兼容 SunEditor） ---------- */
.bd-content {
    padding: 36px 60px 60px;
    font-size: 15.5px;
    line-height: 1.8;
    color: var(--c-text-mid);
    -webkit-font-smoothing: antialiased;
    letter-spacing: 0.01em;
    text-align: justify;
}

.sun-editor-editable p {
    margin: 0 0 20px 0 !important;
}

.sun-editor-editable h2 {
    position: relative;
    font-size: 24px !important;
    font-weight: 800 !important;
    color: var(--c-dark) !important;
    margin: 36px 0 16px 0 !important;
    line-height: 1.35;
    padding-left: 14px;
}

.sun-editor-editable h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 4px;
    background: linear-gradient(180deg, var(--c-primary), var(--c-primary-light));
    border-radius: 4px;
}

.sun-editor-editable h3 {
    font-size: 19px !important;
    font-weight: 700 !important;
    color: var(--c-dark) !important;
    margin: 32px 0 14px 0 !important;
    line-height: 1.4;
}

/* 表格 */
.sun-editor-editable table {
    border-collapse: separate !important;
    border-spacing: 0 !important;
    width: 100%;
    margin: 28px 0 !important;
    font-size: 14.5px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--c-border) !important;
}

.sun-editor-editable th,
.sun-editor-editable td {
    padding: 14px 18px !important;
    text-align: left;
    color: var(--c-text-mid);
    border-bottom: 1px solid var(--c-border) !important;
    border-right: 1px solid var(--c-border) !important;
    transition: background 0.2s ease;
}

.sun-editor-editable th:last-child,
.sun-editor-editable td:last-child {
    border-right: none !important;
}

.sun-editor-editable tr:last-child td {
    border-bottom: none !important;
}

.sun-editor-editable th {
    background-color: var(--c-bg-soft) !important;
    font-weight: 700 !important;
    color: var(--c-dark);
}

.sun-editor-editable tbody tr:hover td {
    background-color: var(--c-primary-bg-2);
}

/* 引用块 */
.sun-editor-editable blockquote {
    background: linear-gradient(90deg, var(--c-primary-bg-2), transparent) !important;
    padding: 24px 32px !important;
    margin: 28px 0 !important;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    color: var(--c-text) !important;
    font-style: normal;
    border-left: 4px solid var(--c-primary) !important;
    position: relative;
}

.sun-editor-editable blockquote::before {
    content: "“";
    position: absolute;
    top: 10px;
    left: 16px;
    font-size: 40px;
    color: var(--c-primary);
    opacity: 0.2;
    font-family: serif;
    line-height: 1;
}

.sun-editor-editable blockquote p {
    margin: 0 !important;
    font-size: 15.5px;
}

/* 链接 */
.sun-editor-editable a {
    color: var(--c-primary) !important;
    text-decoration: none !important;
    font-weight: 600;
    position: relative;
    transition: color var(--ease);
}

.sun-editor-editable a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 100%;
    height: 1px;
    background: var(--c-primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.sun-editor-editable a:hover {
    color: var(--c-primary-hover) !important;
}

.sun-editor-editable a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* 图片 */
.sun-editor-editable img {
    border-radius: var(--radius-md);
    max-width: 100%;
    height: auto;
    margin: 20px auto;
    box-shadow: var(--shadow-sm);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    display: block;
}

.sun-editor-editable img:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

/* ---------- 正文内自定义组件 ---------- */
.sun-editor-editable .takeaways-box {
    background: #f8fafc !important;
    border: 1px solid var(--c-border) !important;
    border-top: 4px solid var(--c-primary) !important;
    border-radius: var(--radius-lg) !important;
    padding: 24px 28px !important;
    margin: 28px 0 !important;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease;
}
.sun-editor-editable .takeaways-box:hover {
    transform: translateY(-2px);
}
.sun-editor-editable .takeaways-box h4 {
    margin: 0 0 12px 0 !important;
    color: var(--c-dark) !important;
    font-size: 16px !important;
    font-weight: 700 !important;
}

.sun-editor-editable .info-banner {
    background: var(--c-primary-bg-2) !important;
    border: 1px solid #bfdbfe !important;
    border-left: 4px solid var(--c-primary) !important;
    color: #1e3a8a !important;
    padding: 18px 22px !important;
    margin: 28px 0 !important;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.sun-editor-editable .alert-box {
    background: #fffbeb !important;
    border: 1px solid #fde68a !important;
    border-left: 4px solid #f59e0b !important;
    color: #92400e !important;
    padding: 18px 22px !important;
    margin: 28px 0 !important;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.sun-editor-editable .spec-card {
    background: var(--c-bg-soft) !important;
    border: 1px solid var(--c-border) !important;
    border-radius: var(--radius-lg) !important;
    padding: 24px !important;
    margin: 28px 0 !important;
    box-shadow: var(--shadow-sm);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.sun-editor-editable .spec-card:hover {
    border-color: var(--c-primary-light) !important;
    box-shadow: var(--shadow-md);
}

.sun-editor-editable .grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 28px 0;
    align-items: center;
}
@media (max-width: 768px) {
    .sun-editor-editable .grid-2 {
        grid-template-columns: 1fr;
    }
}

.sun-editor-editable ol {
    margin: 24px 0 !important;
    padding-left: 22px !important;
}

.sun-editor-editable ol li {
    margin-bottom: 12px !important;
    line-height: 1.7 !important;
    color: var(--c-text-mid) !important;
}

.sun-editor-editable ol li::marker {
    color: var(--c-primary) !important;
    font-weight: 700 !important;
}

.sun-editor-editable code {
    background: var(--c-border-light) !important;
    color: var(--c-primary) !important;
    padding: 2px 6px !important;
    border-radius: var(--radius-xs) !important;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.9em;
    border: 1px solid var(--c-border);
}

.sun-editor-editable pre {
    background: var(--c-dark-deep) !important;
    color: #e2e8f0 !important;
    padding: 20px 24px !important;
    border-radius: var(--radius-lg) !important;
    overflow-x: auto;
    margin: 28px 0 !important;
    box-shadow: inset 0 2px 8px rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.1);
}
.sun-editor-editable pre code {
    background: transparent !important;
    color: inherit !important;
    padding: 0 !important;
    border: none !important;
    font-size: 14px;
    line-height: 1.6;
}

/* ---------- 文章底部：作者 + 分享 ---------- */
.bd-share-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    padding: 24px 60px 32px;
    border-top: 1px solid var(--c-border);
    background: var(--c-bg-soft);
}

.bd-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.bd-author-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-hover) 100%);
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(29, 111, 232, 0.3);
}

.bd-author-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--c-dark);
    margin-bottom: 2px;
}

.bd-author-role {
    font-size: 12px;
    color: var(--c-text-light);
}

.bd-share-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.bd-share-actions .bd-share-label {
    color: var(--c-text-soft);
    font-size: 13px;
    font-weight: 700;
}

.bd-share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--c-bg-white);
    color: var(--c-text-soft);
    text-decoration: none;
    transition: all var(--ease);
    border: 1px solid var(--c-border);
}

.bd-share-btn:hover {
    background: var(--c-primary);
    color: #fff;
    border-color: var(--c-primary);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 6px 12px rgba(29, 111, 232, 0.2);
}

/* ---------- 侧边栏 ---------- */
.bd-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: sticky;
    top: 100px;
    align-self: start;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    z-index: 10;
}

.bd-sidebar-block {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-xl);
    padding: 24px 22px;
    box-shadow: 0 4px 16px rgba(15, 42, 74, 0.04);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.bd-sidebar-block:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(15, 42, 74, 0.08);
}

.bd-sidebar-title {
    margin: 0 0 18px;
    font-size: 15px;
    font-weight: 800;
    color: var(--c-dark);
    letter-spacing: 0.3px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--c-border);
}

.bd-related-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.bd-related-list li { margin-bottom: 16px; }
.bd-related-list li:last-child { margin-bottom: 0; }

.bd-related-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    text-decoration: none;
    transition: transform var(--ease);
}

.bd-related-item:hover { transform: translateX(4px); }

.bd-related-img {
    width: 64px;
    height: 64px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    background: var(--c-border-light);
    border: 1px solid var(--c-border);
    transition: transform 0.3s ease;
}

.bd-related-item:hover .bd-related-img {
    transform: scale(1.05);
}

.bd-related-info { flex: 1; min-width: 0; }

.bd-related-date {
    font-size: 11px;
    color: var(--c-text-light);
    margin-bottom: 4px;
}

.bd-related-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--c-dark);
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--ease);
}

.bd-related-item:hover .bd-related-title { color: var(--c-primary); }

/* 侧边栏 CTA */
.bd-sidebar-cta {
    background: linear-gradient(145deg, var(--c-dark) 0%, var(--c-dark-soft) 100%);
    border-radius: var(--radius-xl);
    padding: 28px 24px;
    color: #fff;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.bd-sidebar-cta::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(29,111,232,0.3) 0%, transparent 70%);
    pointer-events: none;
}

.bd-sidebar-cta-label {
    display: inline-block;
    margin-bottom: 12px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--c-primary-light);
}

.bd-sidebar-cta-title {
    margin: 0 0 10px;
    font-size: 19px;
    font-weight: 700;
    line-height: 1.3;
    color: #fff;
}

.bd-sidebar-cta-text {
    margin: 0 0 20px;
    font-size: 13px;
    line-height: 1.6;
    color: var(--c-text-faint);
}

.bd-sidebar-cta-btn {
    display: block;
    padding: 12px 20px;
    background: var(--c-bg-white);
    color: var(--c-dark);
    border-radius: var(--radius-md);
    text-align: center;
    text-decoration: none;
    font-size: 13px;
    font-weight: 700;
    transition: all var(--ease);
    position: relative;
    z-index: 1;
}

.bd-sidebar-cta-btn:hover {
    background: var(--c-primary-light);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(29, 111, 232, 0.4);
}

/* ---------- 底部 CTA ---------- */
.bd-cta {
    background: linear-gradient(135deg, var(--c-dark-deep) 0%, var(--c-dark-soft) 100%);
    color: #fff;
    padding: 80px 20px;
    text-align: center;
}

.bd-cta-inner { max-width: 720px; margin: 0 auto; }

.bd-cta h2 {
    font-size: 32px;
    font-weight: 800;
    margin: 0 0 16px;
    letter-spacing: -0.3px;
    text-wrap: balance;
}

.bd-cta p {
    font-size: 15px;
    color: var(--c-text-faint);
    margin: 0 0 32px;
    line-height: 1.65;
}

.bd-cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.bd-cta-primary {
    background: var(--c-primary);
    color: #fff;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: 15px;
    font-weight: 700;
    transition: all var(--ease);
    box-shadow: 0 4px 14px rgba(29, 111, 232, 0.3);
}

.bd-cta-primary:hover {
    background: var(--c-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(29, 111, 232, 0.4);
}

.bd-cta-secondary {
    background: transparent;
    color: #fff;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: 15px;
    font-weight: 700;
    border: 1px solid rgba(255, 255, 255, 0.4);
    transition: all var(--ease);
}

.bd-cta-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    transform: translateY(-2px);
}

/* ==========================================
   导航栏吸顶
   ========================================== */
.site-header.is-sticky {
    position: fixed !important;
    top: 0 !important;
    left: 0;
    right: 0;
    width: 100% !important;
    z-index: 99999 !important;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%) !important;
    box-shadow: 0 4px 20px rgba(15, 42, 74, 0.15);
}

.nav-placeholder {
    width: 100%;
    height: 0;
}

/* ==========================================
   移动端与平板响应式 (<= 1024px)
   ========================================== */
@media (max-width: 1024px) {
    /* 导航栏吸顶保持 */
    .site-header.is-sticky {
        position: fixed !important;
    }

    /* ---------- 主体布局 ---------- */
    .bd-main {
        padding: 30px 12px 60px !important;
    }

    .bd-main-inner {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 20px !important;
        width: 100% !important;
        position: static !important;
        overflow: hidden !important;
    }

    /* ---------- 文章卡片内边距 ---------- */
    .bd-lead {
        padding: 24px 16px 0 !important;
    }

    .bd-lead p {
        font-size: 16px !important;
        line-height: 1.7 !important;
        padding-bottom: 20px !important;
    }

    .bd-content {
        padding: 24px 16px 40px !important;
        font-size: 15px !important;
        line-height: 1.75 !important;
        text-align: left !important;
    }

    .bd-share-bottom {
        padding: 20px 16px !important;
        gap: 16px !important;
    }

    /* ---------- Hero 区 ---------- */
    .bd-hero {
        min-height: 240px !important;
        padding: 40px 16px 30px !important;
    }

    .bd-hero h1 {
        font-size: 22px !important;
        line-height: 1.3 !important;
    }

    .bd-hero-meta {
        gap: 14px !important;
        font-size: 12px !important;
    }

    /* 面包屑：手机端只保留当前页名，避免过长换行 */
    .bd-hero-breadcrumb {
        font-size: 12px !important;
        margin-bottom: 14px !important;
        white-space: normal !important;
        overflow: visible !important;
        text-overflow: clip !important;
    }

    .bd-hero-breadcrumb a,
    .bd-hero-breadcrumb .bd-bc-sep {
        display: none !important;
    }

    .bd-hero-breadcrumb .bd-bc-current {
        display: inline !important;
        color: var(--c-border) !important;
        font-weight: 600 !important;
    }

    /* 封面图：移动端改为 cover 铺满，裁掉多余边缘 */
    .bd-cover {
        aspect-ratio: 16 / 9 !important;
        height: auto !important;
        max-height: none !important;
        background: #f1f5f9 !important;
        overflow: hidden !important;
    }

    .bd-cover img {
        width: 100% !important;
        height: 100% !important;
        max-height: none !important;
        object-fit: cover !important;
        display: block !important;
    }

    /* ---------- 正文内富文本元素 ---------- */

    /* 图片：限制最大宽度，防止超出容器 */
    .bd-content img,
    .bd-article img,
    .sun-editor-editable img {
        max-width: 100% !important;
        height: auto !important;
        display: block !important;
        margin: 10px auto !important;
    }

    /* 表格：允许横向滚动，避免撑破容器 */
    .bd-content table,
    .sun-editor-editable table {
        display: block !important;
        width: 100% !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch;
        border-radius: var(--radius-md) !important;
    }

    .sun-editor-editable th,
    .sun-editor-editable td {
        padding: 10px 12px !important;
        font-size: 13.5px !important;
        white-space: nowrap;
    }

    /* 标题字号与间距收敛 */
    .sun-editor-editable h2 {
        font-size: 20px !important;
        margin: 28px 0 14px 0 !important;
    }

    .sun-editor-editable h3 {
        font-size: 17px !important;
        margin: 24px 0 12px 0 !important;
    }

    /* 引用块内边距收敛 */
    .sun-editor-editable blockquote {
        padding: 18px 20px 18px 24px !important;
        margin: 22px 0 !important;
    }

    /* 代码块内边距收敛 */
    .sun-editor-editable pre {
        padding: 16px 18px !important;
        font-size: 13px !important;
        border-radius: var(--radius-md) !important;
    }

    /* 自定义组件内边距收敛 */
    .sun-editor-editable .takeaways-box,
    .sun-editor-editable .spec-card {
        padding: 18px 18px !important;
    }

    .sun-editor-editable .info-banner,
    .sun-editor-editable .alert-box {
        padding: 14px 16px !important;
    }

    /* 双列布局在小屏强制单列 */
    .sun-editor-editable .grid-2 {
        grid-template-columns: 1fr !important;
        gap: 14px !important;
    }

    /* ---------- 侧边栏（单栏后堆在下方） ---------- */
    .bd-sidebar {
        position: static !important;
        max-height: none !important;
        overflow: visible !important;
        top: auto !important;
    }

    .bd-sidebar-block,
    .bd-sidebar-cta {
        padding: 20px 18px !important;
    }

    /* ---------- 底部 CTA ---------- */
    .bd-cta {
        padding: 50px 16px !important;
    }

    .bd-cta h2 {
        font-size: 22px !important;
    }

    .bd-cta p {
        font-size: 14px !important;
    }

    .bd-cta-buttons {
        flex-direction: column !important;
        gap: 12px !important;
    }

    .bd-cta-primary,
    .bd-cta-secondary {
        width: 100% !important;
        padding: 13px 20px !important;
        font-size: 14px !important;
    }
}

/* ==========================================
   平板单独一档 (641px ~ 1024px)
   Hero 更高、标题更大、正文留白更宽松
   ========================================== */
@media (min-width: 641px) and (max-width: 1024px) {
    .bd-hero {
        min-height: 320px !important;
        padding: 56px 32px 44px !important;
    }

    .bd-hero h1 {
        font-size: 30px !important;
        line-height: 1.25 !important;
        max-width: 90% !important;
    }

    .bd-hero-meta {
        font-size: 13px !important;
        gap: 20px !important;
    }

    /* 平板空间足够，恢复完整面包屑 */
    .bd-hero-breadcrumb a,
    .bd-hero-breadcrumb .bd-bc-sep {
        display: inline !important;
    }

    .bd-main {
        padding: 40px 24px 70px !important;
    }

    .bd-lead {
        padding: 36px 36px 0 !important;
    }

    .bd-content {
        padding: 32px 36px 48px !important;
        font-size: 15.5px !important;
    }

    .bd-cover {
        aspect-ratio: 16 / 9 !important;
    }

    .bd-share-bottom {
        padding: 24px 36px 28px !important;
    }

    .bd-sidebar-block,
    .bd-sidebar-cta {
        padding: 24px 24px !important;
    }

    .bd-cta {
        padding: 70px 24px !important;
    }

    .bd-cta h2 {
        font-size: 28px !important;
    }
}