/* ============================================================
 * 九州微电 · 文章详情 article.css
 * 详情头部 / 正文 / 上下篇 / 侧栏推荐 / 相关轮播
 * ============================================================ */

.article-page { background: var(--jz-white); }

/* ---------- 文章标题区 ---------- */
.article-hero {
    padding: clamp(var(--sp-8), 6vw, var(--sp-11)) 0 var(--sp-8);
    background: var(--jz-white);
    border-bottom: 1px solid var(--border-color);
}
.article-hero .container {
    max-width: 960px;
    text-align: center;
}
.article-hero__meta {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-4);
    flex-wrap: wrap;
    justify-content: center;
    font-size: 12.5px;
    color: var(--jz-gray-500);
    margin-bottom: var(--sp-4);
}
.article-hero__cate {
    padding: 3px 12px;
    background: var(--jz-red-soft);
    color: var(--jz-red);
    border-radius: var(--radius-sm);
    font-weight: 500;
    letter-spacing: .04em;
}
.article-hero__meta .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.article-hero__meta i { color: var(--jz-gray-500); font-size: 11.5px; }
.article-hero__title {
    font-family: var(--font-display);
    font-size: clamp(24px, 3.2vw, 38px);
    font-weight: 700;
    color: var(--jz-ink);
    line-height: 1.3;
    letter-spacing: -0.02em;
    margin: 0;
    word-break: break-word;
}

/* ---------- 正文 ---------- */
.article-body {
    padding: clamp(var(--sp-7), 5vw, var(--sp-10)) 0 var(--sp-12);
    background: var(--jz-white);
}
.article-body .container { max-width: var(--container-max); }
.article-body__wrap {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: var(--sp-8);
    align-items: start;
}
.article-body__main {
    min-width: 0;
}
.article-body__cover {
    margin-bottom: var(--sp-6);
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: var(--jz-gray-100);
}
.article-body__cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.article-body__content {
    font-size: 15px;
    line-height: 1.85;
    color: var(--jz-gray-900);
}
.article-body__content > * { margin-bottom: var(--sp-4); }
.article-body__content h2,
.article-body__content h3,
.article-body__content h4 {
    margin: var(--sp-7) 0 var(--sp-3);
    color: var(--jz-ink);
    line-height: 1.4;
}
.article-body__content h2 { font-size: 22px; font-weight: 700; }
.article-body__content h3 { font-size: 18px; font-weight: 600; }
.article-body__content h4 { font-size: 16px; font-weight: 600; }
.article-body__content p { text-align: justify; }
.article-body__content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--sp-4) auto;
}
.article-body__content a { color: var(--jz-red); text-decoration: underline; }
.article-body__content blockquote {
    margin: var(--sp-5) 0;
    padding: var(--sp-4) var(--sp-5);
    background: var(--jz-gray-50);
    border-left: 3px solid var(--jz-red);
    color: var(--jz-gray-900);
    font-style: italic;
}
.article-body__content ul,
.article-body__content ol { padding-left: 22px; }
.article-body__content li { margin-bottom: 6px; }
.article-body__content table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
.article-body__content th,
.article-body__content td {
    padding: 10px 14px;
    border: 1px solid var(--border-color);
}
.article-body__content th {
    background: var(--jz-gray-50);
    font-weight: 600;
    color: var(--jz-ink);
}
.article-body__content pre {
    padding: var(--sp-4);
    background: var(--jz-ink);
    color: #e3e6ea;
    border-radius: var(--radius-md);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.6;
}

/* ---------- 上一篇 / 下一篇 ---------- */
.article-nav {
    margin-top: var(--sp-8);
    padding-top: var(--sp-6);
    border-top: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--sp-5);
    align-items: center;
}
.article-nav__item {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 13.5px;
}
.article-nav__item--right { text-align: right; }
.article-nav__label {
    font-size: 11px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--jz-gray-500);
}
.article-nav__item a {
    color: var(--jz-ink);
    font-weight: 500;
    line-height: 1.5;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    transition: color var(--transition-base);
}
.article-nav__item a:hover { color: var(--jz-red); }
.article-nav__none { color: var(--jz-gray-300); }
.article-nav__back {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--jz-white);
    color: var(--jz-ink);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}
.article-nav__back:hover {
    background: var(--jz-red);
    border-color: var(--jz-red);
    color: var(--jz-white);
}

/* ---------- 侧栏 ---------- */
.article-aside {
    position: sticky;
    top: calc(var(--nav-h) + 20px);
    display: flex;
    flex-direction: column;
    gap: var(--sp-5);
    min-width: 0;
}
.aside-block {
    background: var(--jz-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--sp-5);
}
.aside-block__title {
    font-size: 13px;
    font-weight: 600;
    color: var(--jz-ink);
    margin: 0 0 var(--sp-4);
    padding-bottom: var(--sp-3);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.aside-block__title::after {
    content: "";
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--jz-red);
    border-radius: 2px;
}
.aside-products {
    display: flex;
    flex-direction: column;
    gap: var(--sp-3);
}
.aside-products a {
    display: grid;
    grid-template-columns: 64px 1fr;
    gap: var(--sp-3);
    align-items: center;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-base);
}
.aside-products a:hover { background: var(--jz-gray-50); }
.aside-products__img {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--jz-gray-50);
    display: flex;
    align-items: center;
    justify-content: center;
}
.aside-products__img img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
}
.aside-products__text { min-width: 0; }
.aside-products__text h4 {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--jz-ink);
    margin: 0 0 4px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition-base);
}
.aside-products a:hover h4 { color: var(--jz-red); }
.aside-products__text span {
    font-size: 11.5px;
    color: var(--jz-gray-500);
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.aside-contact p {
    font-size: 13px;
    color: var(--jz-gray-700);
    line-height: 1.6;
    margin: 0 0 var(--sp-4);
}
.aside-contact .btn-more {
    padding: 10px 20px;
    font-size: 13px;
    width: 100%;
    justify-content: center;
}

/* ============================================================
 * 相关推荐（首页风 Section Header · 横向轮播 · 两侧居中箭头）
 * ============================================================ */
.article-related {
    padding: clamp(var(--sp-9), 7vw, var(--sp-11)) 0 clamp(var(--sp-10), 8vw, var(--sp-12));
    background: var(--jz-gray-50);
}
.article-related .container { max-width: var(--container-wide); }

/* ---------- Section header · 复用首页风 ---------- */
.article-related__header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--sp-4);
    margin-bottom: clamp(var(--sp-6), 4vw, var(--sp-7));
}
.article-related__header > div:first-child { min-width: 0; flex: 1 1 auto; max-width: 100%; }

.article-related .section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: var(--sp-2);
    color: var(--jz-red);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: .14em;
    text-transform: uppercase;
    max-width: 100%;
}
.article-related .section-eyebrow__text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}
.article-related .section-eyebrow__line {
    display: inline-block;
    width: 28px;
    height: 1px;
    background: var(--jz-red);
    flex-shrink: 0;
}
.article-related .section-heading {
    font-family: var(--font-display);
    font-size: clamp(22px, 2.2vw, 30px);
    font-weight: 700;
    color: var(--jz-ink);
    line-height: 1.2;
    letter-spacing: -0.015em;
    margin: 0;
    word-break: break-word;
}
.article-related .section-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 20px;
    font-size: var(--fs-13);
    color: var(--jz-ink);
    border: 1px solid var(--border-color-dark);
    border-radius: var(--radius-pill);
    background: transparent;
    white-space: nowrap;
    flex-shrink: 0;
    transition: all var(--transition-base);
}
.article-related .section-more i { transition: transform var(--transition-base); flex-shrink: 0; }
.article-related .section-more:hover {
    color: var(--jz-red);
    border-color: var(--jz-red);
    background: transparent;
}
.article-related .section-more:hover i { color: var(--jz-red); transform: translateX(4px); }

/* ---------- Slider 容器 ---------- */
.related-slider {
    position: relative;
    padding: 0;
}
.related-swiper { overflow: hidden; }

/* ---------- 卡片 ---------- */
.related-card {
    display: flex;
    flex-direction: column;
    background: var(--jz-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    color: inherit;
    height: 100%;
    transition: box-shadow var(--transition-base), transform var(--transition-base);
}
.related-card:hover {
    box-shadow: 0 20px 40px rgba(14, 17, 22, .08);
    transform: translateY(-4px);
}

/* 图片 + 无图占位 */
.related-card__img {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: linear-gradient(135deg, #f5f7fa 0%, #eceef2 100%);
}
.related-card__img::before {
    content: "\f03e";
    font-family: FontAwesome;
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--jz-gray-300);
    font-size: 32px;
    z-index: 0;
    pointer-events: none;
}
.related-card__img img {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1s var(--ease-out);
}
.related-card__img img.is-broken { display: none; }
.related-card:hover .related-card__img img { transform: scale(1.05); }

/* 分类徽章（叠在图上） */
.related-card__cate {
    position: absolute;
    left: 12px;
    top: 12px;
    z-index: 2;
    padding: 4px 10px;
    font-size: 11px;
    color: var(--jz-white);
    background: var(--jz-red);
    border-radius: var(--radius-sm);
    letter-spacing: .06em;
    max-width: calc(100% - 24px);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 正文 */
.related-card__body {
    padding: var(--sp-4) var(--sp-5) var(--sp-5);
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}
.related-card__meta {
    display: flex;
    align-items: center;
    gap: var(--sp-4);
    font-size: 11.5px;
    color: var(--jz-gray-500);
    letter-spacing: .04em;
}
.related-card__meta i { color: var(--jz-gray-500); font-size: 11px; margin-right: 4px; }

.related-card__body h3 {
    font-size: 15.5px;
    font-weight: 600;
    color: var(--jz-ink);
    line-height: 1.45;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 44px;
    word-break: break-word;
    transition: color var(--transition-base);
}
.related-card:hover h3 { color: var(--jz-red); }

.related-card__desc {
    font-size: 13px;
    color: var(--jz-gray-700);
    line-height: 1.65;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-card__more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: auto;
    padding-top: var(--sp-3);
    border-top: 1px solid var(--border-color);
    font-size: 12px;
    font-weight: 500;
    color: var(--jz-ink);
    letter-spacing: .1em;
    text-transform: uppercase;
    transition: color var(--transition-base);
}
.related-card__more i { transition: transform var(--transition-base); }
.related-card:hover .related-card__more { color: var(--jz-red); }
.related-card:hover .related-card__more i { transform: translateX(4px); }

/* ---------- 左右切换按钮（极简 · 长箭头 + 生长线） ---------- */
.related-slider__prev,
.related-slider__next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: 0;
    padding: 14px 0;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--jz-gray-500);
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    z-index: 5;
    transition: color var(--transition-base);
}
.related-slider__prev { left: -72px; }
.related-slider__next { right: -72px; }

.related-slider__btn-line {
    display: inline-block;
    width: 28px;
    height: 1px;
    background: currentColor;
    opacity: .5;
    transition: width var(--transition-base), opacity var(--transition-base);
}

/* 箭头本体 · 图标微动画 */
.related-slider__prev i,
.related-slider__next i {
    transition: transform var(--transition-base);
    display: inline-block;
}

/* 悬浮：变红 + 线条变长 + 箭头方向微推 */
.related-slider__prev:hover,
.related-slider__next:hover {
    color: var(--jz-red);
}
.related-slider__prev:hover .related-slider__btn-line,
.related-slider__next:hover .related-slider__btn-line {
    width: 44px;
    opacity: 1;
}
.related-slider__prev:hover i { transform: translateX(-6px); }
.related-slider__next:hover i { transform: translateX(6px); }

.related-slider__prev.swiper-button-disabled,
.related-slider__next.swiper-button-disabled {
    opacity: .25;
    pointer-events: none;
    cursor: not-allowed;
}

/* ---------- 响应式 ---------- */
@media (max-width: 992px) {
    .article-body__wrap { grid-template-columns: 1fr; }
    .article-aside { position: static; }

    .article-related__header { flex-direction: column; align-items: flex-start; }
    .article-related .section-more { align-self: flex-end; }

    .related-slider__prev { left: 0; }
    .related-slider__next { right: 0; }
    .related-slider__btn-line { width: 20px; }
    .related-slider__prev:hover .related-slider__btn-line,
    .related-slider__next:hover .related-slider__btn-line { width: 32px; }
}
@media (max-width: 768px) {
    .article-nav {
        grid-template-columns: 1fr;
        gap: var(--sp-4);
    }
    .article-nav__item--right { text-align: left; }
    .article-nav__back { justify-self: start; }
}
@media (max-width: 576px) {
    .related-slider__prev,
    .related-slider__next { font-size: 18px; }
    .related-slider__btn-line { width: 16px; }
    .related-card__body h3 { min-height: 0; }
}