/* =====================================================================
   lt · 内页（公司动态列表 / 动态详情 / 404）
   ---------------------------------------------------------------------
   与首页共用 lt.css 的骨架、导航、页脚与按钮，这里只补内页自己的块：
   页头、列表行、分页、正文排版、上下篇、404。
   ===================================================================== */

/* ===================== 页头 ===================== */

.lt-page {
    position: relative;
    padding-top: calc(var(--lt-nav-h) + clamp(34px, 5vw, 62px));
    padding-bottom: clamp(24px, 3.4vw, 40px);
    overflow: hidden;
    isolation: isolate;
}

.lt-page__wash {
    position: absolute;
    inset: 0;
    z-index: -2;
    background:
        radial-gradient(52% 60% at 88% 0%, rgba(124, 58, 237, .12), transparent 66%),
        radial-gradient(48% 60% at 4% 4%, rgba(2, 132, 199, .09), transparent 68%),
        var(--lt-paper);
}

.lt-page__dots {
    position: absolute;
    top: 0;
    right: 0;
    z-index: -1;
    width: min(380px, 52vw);
    height: min(380px, 52vw);
    background-image: radial-gradient(var(--lt-dot) 1px, transparent 1px);
    background-size: 16px 16px;
    -webkit-mask-image: radial-gradient(circle at 100% 0%, #000 4%, transparent 64%);
    mask-image: radial-gradient(circle at 100% 0%, #000 4%, transparent 64%);
    opacity: .5;
}

.lt-page h1 {
    margin: 16px 0 0;
    font-size: clamp(1.85rem, 4.2vw, 3rem);
    line-height: 1.2;
    letter-spacing: -.035em;
    font-weight: 800;
    color: var(--lt-ink);
    text-wrap: balance;
}

.lt-page h1 em {
    font-style: normal;
    background: var(--lt-grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.lt-page__lede {
    margin: 14px 0 0;
    max-width: 38em;
    color: var(--lt-muted);
    font-size: clamp(.92rem, 1.05vw, 1rem);
    line-height: 1.9;
}

.lt-sub {
    padding-block: clamp(18px, 2.6vw, 30px) clamp(52px, 7vw, 90px);
}

/* ===================== 列表 ===================== */

.lt-list {
    margin: 0;
    padding: 0;
    list-style: none;
    border-top: 1px solid var(--lt-line);
}

.lt-list > li { border-bottom: 1px solid var(--lt-line); }

.lt-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 30px;
    grid-template-areas:
        "meta arrow"
        "body body";
    gap: 10px 16px;
    align-items: start;
    padding: 22px 2px;
    transition: padding .25s var(--lt-ease);
}

@media (min-width: 820px) {
    .lt-item {
        grid-template-columns: 132px minmax(0, 1fr) 30px;
        grid-template-areas: "meta body arrow";
        gap: 26px;
        padding: 26px 6px;
        align-items: center;
    }
}

.lt-item__meta {
    grid-area: meta;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 11.5px;
    color: var(--lt-muted);
}

.lt-item__meta b {
    font-weight: 700;
    letter-spacing: .02em;
    color: var(--lt-ink-2);
    font-variant-numeric: tabular-nums;
}

@media (min-width: 820px) {
    .lt-item__meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 7px;
    }
}

.lt-item__tag {
    display: inline-flex;
    align-items: center;
    padding: 3px 9px;
    border-radius: 999px;
    background: var(--lt-tint-rose);
    color: var(--lt-rose);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .02em;
    white-space: nowrap;
}

.lt-item__body {
    grid-area: body;
    display: flex;
    flex-direction: column;
    gap: 7px;
    min-width: 0;
}

.lt-item__title {
    font-size: clamp(1rem, 1.5vw, 1.15rem);
    font-weight: 800;
    line-height: 1.5;
    color: var(--lt-ink);
    transition: color .2s var(--lt-ease);
}

.lt-item__sum {
    display: -webkit-box;
    overflow: hidden;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    font-size: .88rem;
    line-height: 1.8;
    color: var(--lt-muted);
}

.lt-item__arrow {
    grid-area: arrow;
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 1px solid var(--lt-line);
    background: var(--lt-surface);
    color: var(--lt-ink-2);
    font-size: 12px;
    transition: transform .25s var(--lt-ease), background .25s var(--lt-ease),
        color .25s var(--lt-ease), border-color .25s var(--lt-ease);
}

.lt-item:hover { padding-left: 12px; }
.lt-item:hover .lt-item__title { color: var(--lt-indigo); }

.lt-item:hover .lt-item__arrow {
    transform: translateX(2px);
    background: var(--lt-indigo);
    border-color: var(--lt-indigo);
    color: #fff;
}

@media (max-width: 819px) {
    .lt-item__arrow { align-self: start; }
}

.lt-notice {
    margin-bottom: 18px;
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid var(--lt-line);
    background: var(--lt-tint-indigo);
    color: var(--lt-indigo);
    font-size: .88rem;
}

.lt-empty {
    padding: 26px 0;
    color: var(--lt-muted);
    font-size: .92rem;
}

/* ===================== 分页 ===================== */

.lt-pager {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-top: clamp(26px, 4vw, 42px);
    padding-top: 22px;
    border-top: 1px solid var(--lt-line);
}

.lt-pager__link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    border: 1px solid var(--lt-line);
    background: var(--lt-surface);
    box-shadow: var(--lt-shadow-sm);
    font-size: 13.5px;
    font-weight: 700;
    color: var(--lt-ink-2);
    transition: transform .2s var(--lt-ease), border-color .2s var(--lt-ease),
        color .2s var(--lt-ease);
}

.lt-pager__link:hover {
    transform: translateY(-1px);
    border-color: rgba(79, 70, 229, .4);
    color: var(--lt-indigo);
}

.lt-pager__link.is-disabled {
    opacity: .38;
    pointer-events: none;
    box-shadow: none;
}

.lt-pager__status {
    font-size: 12px;
    color: var(--lt-muted);
    font-variant-numeric: tabular-nums;
}

/* ===================== 文章详情 ===================== */

.lt-article {
    max-width: 760px;
    margin-inline: auto;
}

.lt-article__back {
    display: flex;
    width: fit-content;
    align-items: center;
    gap: 7px;
    font-size: 13px;
    font-weight: 700;
    color: var(--lt-muted);
    transition: color .2s var(--lt-ease);
}

.lt-article__back:hover { color: var(--lt-indigo); }

.lt-article__tag { margin-top: 18px; }

.lt-article h1 {
    margin: 12px 0 0;
    font-size: clamp(1.3rem, 3.3vw, 2.3rem);
    line-height: 1.34;
    letter-spacing: -.03em;
    font-weight: 800;
    color: var(--lt-ink);
    text-wrap: balance;
}

.lt-article__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 14px;
    margin-top: 14px;
    font-size: 12.5px;
    color: var(--lt-muted);
    font-variant-numeric: tabular-nums;
}

.lt-article__cover {
    margin-top: clamp(22px, 3vw, 32px);
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--lt-line);
    background: var(--lt-media);
    aspect-ratio: 16 / 9;
}

.lt-article__cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ---------- 正文排版 ---------- */

.lt-prose {
    margin-top: clamp(22px, 3vw, 32px);
    font-size: 16px;
    line-height: 2;
    color: var(--lt-ink-2);
    overflow-wrap: break-word;
}

.lt-prose > :first-child { margin-top: 0; }

.lt-prose p { margin: 0 0 1.15em; }

.lt-prose h2 {
    margin: 1.9em 0 .65em;
    font-size: 1.28rem;
    line-height: 1.5;
    font-weight: 800;
    letter-spacing: -.02em;
    color: var(--lt-ink);
}

.lt-prose h3 {
    margin: 1.6em 0 .55em;
    font-size: 1.08rem;
    line-height: 1.55;
    font-weight: 800;
    color: var(--lt-ink);
}

.lt-prose ul,
.lt-prose ol {
    margin: 0 0 1.15em;
    padding-left: 1.35em;
}

.lt-prose li { margin-bottom: .4em; }

.lt-prose img {
    max-width: 100%;
    height: auto;
    margin: 1.5em 0;
    border-radius: 14px;
}

.lt-prose blockquote {
    margin: 1.5em 0;
    padding: 14px 20px;
    border-left: 3px solid var(--lt-indigo);
    border-radius: 0 12px 12px 0;
    background: var(--lt-surface);
    color: var(--lt-muted);
}

.lt-prose blockquote p:last-child { margin-bottom: 0; }

.lt-prose a {
    color: var(--lt-indigo);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
}

.lt-prose strong { color: var(--lt-ink); font-weight: 800; }

.lt-prose hr {
    margin: 2.2em 0;
    border: 0;
    border-top: 1px solid var(--lt-line);
}

.lt-prose table {
    width: 100%;
    margin: 1.5em 0;
    border-collapse: collapse;
    font-size: .92rem;
}

.lt-prose th,
.lt-prose td {
    padding: 10px 12px;
    border: 1px solid var(--lt-line);
    text-align: left;
}

.lt-prose th { background: var(--lt-surface); font-weight: 700; }

/* ---------- 上下篇 ---------- */

.lt-adj {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: clamp(30px, 4vw, 46px);
    padding-top: 24px;
    border-top: 1px solid var(--lt-line);
}

@media (min-width: 700px) {
    .lt-adj { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
}

.lt-adj__item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 15px 18px;
    border-radius: 14px;
    border: 1px solid var(--lt-line);
    background: var(--lt-surface);
    box-shadow: var(--lt-shadow-sm);
    transition: transform .25s var(--lt-ease), border-color .25s var(--lt-ease);
}

a.lt-adj__item:hover {
    transform: translateY(-2px);
    border-color: rgba(79, 70, 229, .35);
}

.lt-adj__item small {
    font-size: 9.5px;
    font-weight: 700;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--lt-muted);
}

.lt-adj__item strong {
    font-size: .95rem;
    font-weight: 700;
    line-height: 1.55;
    color: var(--lt-ink);
}

.lt-adj__item--next { align-items: flex-end; text-align: right; }

.lt-adj__item.is-empty { opacity: .55; box-shadow: none; }

/* ---------- 文末 CTA ---------- */

.lt-cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-top: clamp(30px, 4vw, 46px);
    padding: clamp(22px, 3.2vw, 34px);
    border-radius: 20px;
    border: 1px solid var(--lt-line);
    background: var(--lt-card-wash);
    box-shadow: var(--lt-shadow-sm);
}

.lt-cta h2 {
    margin: 0;
    font-size: clamp(1.15rem, 2vw, 1.45rem);
    line-height: 1.45;
    font-weight: 800;
    letter-spacing: -.02em;
}

.lt-cta h2 em {
    font-style: normal;
    background: var(--lt-grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.lt-cta p {
    margin: 6px 0 0;
    font-size: .88rem;
    color: var(--lt-muted);
}

/* ===================== 404 ===================== */

.lt-404 {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding-block: clamp(40px, 7vw, 96px) clamp(64px, 9vw, 120px);
}

.lt-404__code {
    font-size: clamp(4.6rem, 15vw, 9.5rem);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -.06em;
    background: var(--lt-grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.lt-404 h1 {
    margin: 10px 0 0;
    font-size: clamp(1.35rem, 2.8vw, 1.9rem);
    font-weight: 800;
    letter-spacing: -.03em;
}

.lt-404 p {
    margin: 12px 0 0;
    max-width: 30em;
    font-size: .95rem;
    line-height: 1.9;
    color: var(--lt-muted);
}

.lt-404__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 28px;
}

/* ===================== 入场动效（内页同名复用） ===================== */

.js .lt-reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .7s var(--lt-ease), transform .7s var(--lt-ease);
}

.js .lt-reveal.is-in {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {
    .js .lt-reveal {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
}