/* 行业洞察专栏样式 */

/* ---- index.html ---- */
.ins-page {
    --ink: #1a1f2e;
    --sub: #5b6478;
    --line: #e8ecf1;
    --bg: #fafbfc;
    --card: #ffffff;
    --brand: #ea6c0c;
    --brand-soft: #fff4eb;
    --deep: #1a2332;
    background: var(--bg);
    color: var(--ink);
}
.ins-page .sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0); border: 0;
}

/* Hero：明亮居中 + 背景图层叠 */
.ins-hero {
    position: relative;
    overflow: hidden;
    padding: 3.75rem 0 4.5rem;
    color: var(--ink);
    background: #fffaf4;
    border-bottom: 1px solid rgba(232, 236, 241, .9);
}
.ins-hero__photo {
    position: absolute;
    inset: 0;
    background: url('/static/images/insights-hero.jpg') center center / cover no-repeat;
    transform: scale(1.03);
    pointer-events: none;
}
.ins-hero__bg {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(255, 252, 248, .82) 0%, rgba(255, 255, 255, .88) 48%, rgba(250, 251, 252, .94) 100%),
        radial-gradient(ellipse 70% 80% at 15% 20%, rgba(234, 108, 12, .12), transparent 55%),
        radial-gradient(ellipse 55% 60% at 85% 15%, rgba(56, 189, 248, .08), transparent 50%);
    pointer-events: none;
}
.ins-hero__mesh {
    position: absolute;
    inset: 0;
    opacity: .28;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(148, 163, 184, .14) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, .14) 1px, transparent 1px);
    background-size: 28px 28px;
    mask-image: radial-gradient(ellipse 75% 70% at 50% 40%, #000 18%, transparent 78%);
    -webkit-mask-image: radial-gradient(ellipse 75% 70% at 50% 40%, #000 18%, transparent 78%);
}
.ins-hero__inner {
    position: relative;
    max-width: 40rem;
    margin: 0 auto;
    text-align: center;
}
.ins-hero__label {
    display: inline-block;
    font-size: .75rem;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--brand);
    background: rgba(255,255,255,.85);
    border: 1px solid rgba(234,108,12,.28);
    padding: .28rem .75rem;
    border-radius: 999px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 10px rgba(234,108,12,.08);
}
.ins-hero__title {
    font-size: clamp(1.9rem, 3.6vw, 2.6rem);
    font-weight: 750;
    letter-spacing: -.02em;
    line-height: 1.2;
    margin: 0 0 .85rem;
    color: #1a2332;
}
.ins-hero__desc {
    margin: 0 auto 1.5rem;
    max-width: 32rem;
    font-size: .98rem;
    line-height: 1.75;
    color: var(--sub);
}
.ins-search {
    display: flex;
    align-items: stretch;
    width: 100%;
    max-width: 26rem;
    margin: 0 auto;
    background: rgba(255, 255, 255, .96);
    border: 1px solid rgba(229, 233, 239, .95);
    border-radius: .75rem;
    overflow: hidden;
    box-shadow: 0 12px 32px rgba(26, 35, 50, .08);
    backdrop-filter: blur(6px);
}
.ins-search input {
    flex: 1;
    border: 0;
    outline: none;
    padding: .85rem 1.05rem;
    font-size: .92rem;
    color: var(--ink);
    min-width: 0;
    background: transparent;
}
.ins-search button {
    width: 3.1rem;
    border: 0;
    background: var(--brand);
    color: #fff;
    cursor: pointer;
    transition: background .2s;
}
.ins-search button:hover { background: #d45f08; }

.ins-body {
    position: relative;
    margin-top: -1.25rem;
    padding-bottom: 3.5rem;
    z-index: 1;
}

/* 分类网格：唯一分类入口 */
.ins-cats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: .65rem;
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}
@media (min-width: 768px) {
    .ins-cats { grid-template-columns: repeat(4, 1fr); gap: .75rem; }
}
@media (min-width: 1100px) {
    .ins-cats { grid-template-columns: repeat(7, 1fr); }
}
.ins-cat {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: .65rem;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: .85rem;
    padding: 1rem .75rem;
    box-shadow: 0 1px 2px rgba(26,31,46,.03);
    transition: border-color .2s, transform .2s, box-shadow .2s;
    min-height: 7.5rem;
}
.ins-cat:hover {
    border-color: #f0b27a;
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(26,31,46,.06);
}
.ins-cat__icon {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: .55rem;
    background: var(--brand-soft);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}
.ins-cat__text {
    width: 100%;
}
.ins-cat__text strong {
    display: block;
    font-size: .9rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: .2rem;
}
.ins-cat__text small {
    display: block;
    font-size: .72rem;
    line-height: 1.45;
    color: var(--sub);
}

.ins-head {
    margin-bottom: 1.1rem;
}
.ins-head h2 {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -.01em;
}
.ins-head p {
    margin: .35rem 0 0;
    font-size: .875rem;
    color: var(--sub);
}

.ins-layout {
    display: grid;
    gap: 1.5rem;
}
@media (min-width: 1024px) {
    .ins-layout {
        grid-template-columns: minmax(0, 1fr) 280px;
        gap: 1.75rem;
        align-items: start;
    }
}
.ins-block + .ins-block { margin-top: 2rem; }

.ins-feature-grid {
    display: grid;
    gap: .75rem;
}
@media (min-width: 768px) {
    .ins-feature-grid { grid-template-columns: repeat(3, 1fr); }
}
.ins-feature {
    display: block;
    background: linear-gradient(160deg, #fffdfb, #fff7ef);
    color: var(--ink);
    border: 1px solid #f3d9c0;
    border-radius: .85rem;
    padding: 1.15rem 1.1rem;
    min-height: 8.5rem;
    transition: transform .2s, border-color .2s, box-shadow .2s;
}
.ins-feature:hover {
    transform: translateY(-2px);
    border-color: #efb984;
    box-shadow: 0 10px 22px rgba(234,108,12,.08);
}
.ins-feature em {
    font-style: normal;
    font-size: .7rem;
    color: var(--brand);
    letter-spacing: .04em;
    font-weight: 700;
}
.ins-feature h3 {
    margin: .55rem 0 .4rem;
    font-size: .95rem;
    font-weight: 700;
    line-height: 1.45;
    color: var(--ink);
}
.ins-feature p {
    margin: 0;
    font-size: .78rem;
    line-height: 1.5;
    color: var(--sub);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.ins-feed { display: flex; flex-direction: column; gap: .85rem; }
.ins-card {
    display: grid;
    grid-template-columns: 112px 1fr;
    gap: 1rem;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: .9rem;
    padding: .9rem;
    transition: border-color .2s, box-shadow .2s;
}
.ins-card:hover {
    border-color: #f0c09a;
    box-shadow: 0 8px 20px rgba(26,31,46,.05);
}
.ins-card__cover {
    display: block;
    border-radius: .6rem;
    overflow: hidden;
    background: #eef2f6;
    aspect-ratio: 1;
}
.ins-card__cover img { width: 100%; height: 100%; object-fit: cover; }
.ins-card__ph {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #b7c0ce;
    background: linear-gradient(145deg, #eef2f6, #e2e8f0);
    font-size: 1.4rem;
}
.ins-card__body { min-width: 0; }
.ins-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem .85rem;
    font-size: .72rem;
    color: var(--sub);
    margin-bottom: .35rem;
}
.ins-card__meta a { color: var(--brand); font-weight: 600; }
.ins-card__body h3 {
    margin: 0 0 .35rem;
    font-size: 1.02rem;
    font-weight: 700;
    line-height: 1.4;
}
.ins-card__body h3 a { color: var(--ink); }
.ins-card__body h3 a:hover { color: var(--brand); }
.ins-card__body p {
    margin: 0;
    font-size: .86rem;
    line-height: 1.6;
    color: var(--sub);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.ins-aside { display: flex; flex-direction: column; gap: 1rem; }
.ins-panel {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: .9rem;
    padding: 1.15rem 1.2rem;
}
.ins-panel h3 {
    margin: 0 0 .9rem;
    font-size: .95rem;
    font-weight: 700;
}
.ins-rank {
    list-style: none;
    margin: 0;
    padding: 0;
}
.ins-rank li {
    display: flex;
    gap: .7rem;
    align-items: flex-start;
    padding: .55rem 0;
    border-top: 1px solid var(--line);
}
.ins-rank li:first-child { border-top: 0; padding-top: 0; }
.ins-rank span {
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
    border-radius: .3rem;
    background: #eef2f6;
    color: var(--sub);
    font-size: .7rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ins-rank li:nth-child(-n+3) span {
    background: var(--brand);
    color: #fff;
}
.ins-rank a {
    flex: 1;
    font-size: .86rem;
    line-height: 1.45;
    color: var(--ink);
    font-weight: 600;
}
.ins-rank a:hover { color: var(--brand); }

.ins-panel--cta {
    background: linear-gradient(160deg, #fff8f1, #fff3e8);
    border-color: #f3d9c0;
    color: var(--ink);
}
.ins-panel--cta h3 { color: var(--ink); margin-bottom: .45rem; }
.ins-panel--cta p {
    margin: 0 0 1rem;
    font-size: .85rem;
    line-height: 1.6;
    color: var(--sub);
}
.ins-panel--cta a {
    display: inline-block;
    background: var(--brand);
    color: #fff !important;
    font-size: .85rem;
    font-weight: 600;
    padding: .55rem 1rem;
    border-radius: .5rem;
}
.ins-panel--cta a:hover { background: #d45f08; }

/* 选题预告（无已发布时） */
.ins-upcoming {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 1rem;
    padding: 1.5rem 1.35rem 1.35rem;
    box-shadow: 0 4px 20px rgba(26,31,46,.04);
}
.ins-upcoming__grid {
    display: grid;
    gap: .75rem;
    margin-bottom: 1.25rem;
}
@media (min-width: 768px) {
    .ins-upcoming__grid { grid-template-columns: repeat(3, 1fr); }
}
.ins-upcoming__item {
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: .75rem;
    padding: 1rem .95rem;
    min-height: 7rem;
    transition: border-color .2s, background .2s;
}
.ins-upcoming__item:hover {
    border-color: #f0c09a;
    background: var(--brand-soft);
}
.ins-upcoming__cat {
    display: inline-block;
    font-size: .68rem;
    font-weight: 700;
    color: var(--brand);
    background: #fff;
    border: 1px solid #f5d2b5;
    padding: .12rem .45rem;
    border-radius: .3rem;
    margin-bottom: .55rem;
}
.ins-upcoming__item h3 {
    margin: 0;
    font-size: .9rem;
    font-weight: 650;
    line-height: 1.5;
    color: var(--ink);
}
.ins-panel--inline {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.ins-panel--inline p { margin: .25rem 0 0; }

@media (max-width: 639px) {
    .ins-hero { padding: 2.5rem 0 3.75rem; }
    .ins-card { grid-template-columns: 88px 1fr; gap: .75rem; }
    .ins-cat { min-height: 0; }
    .ins-cat__text small { display: none; }
}

/* ---- detail.html ---- */
.ins-detail {
    --ink: #1a1f2e;
    --sub: #5b6478;
    --line: #e8ecf1;
    --bg: #f4f6f9;
    --card: #fff;
    --brand: #ea6c0c;
    --brand-soft: #fff4eb;
    background: var(--bg);
    color: var(--ink);
    padding: 2rem 0 3.5rem;
    overflow-x: clip;
}
.ins-detail__grid {
    display: grid;
    gap: 1.5rem;
    min-width: 0;
}
@media (min-width: 1024px) {
    .ins-detail__grid {
        grid-template-columns: 240px minmax(0, 1fr);
        gap: 1.75rem;
        align-items: start;
    }
}
/* 手机：正文优先，侧栏次要信息沉底 */
@media (max-width: 1023px) {
    .ins-detail__main { order: -1; min-width: 0; }
    .ins-detail__aside { order: 1; }
}
.ins-detail__aside { display: flex; flex-direction: column; gap: 1rem; min-width: 0; }
.ins-detail__main { min-width: 0; max-width: 100%; }
.ins-detail__panel {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: .9rem;
    padding: 1.15rem 1rem;
    box-shadow: 0 1px 2px rgba(26,31,46,.03);
}
/* 手机默认收起侧栏；桌面常开且隐藏 summary */
.ins-detail__collapse > :not(summary) { margin-top: .35rem; }
.ins-detail__collapse-sum {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    cursor: pointer;
    font-size: .95rem;
    font-weight: 700;
    color: var(--ink);
    padding: 0 .15rem;
    user-select: none;
}
.ins-detail__collapse-sum::-webkit-details-marker { display: none; }
.ins-detail__collapse-sum i {
    color: var(--sub);
    font-size: .85rem;
    transition: transform .2s;
}
.ins-detail__collapse[open] > .ins-detail__collapse-sum {
    padding-bottom: .65rem;
    margin-bottom: .25rem;
    border-bottom: 1px solid var(--line);
}
.ins-detail__collapse[open] > .ins-detail__collapse-sum i { transform: rotate(180deg); }
@media (min-width: 1024px) {
    .ins-detail__panel.ins-detail__collapse { position: sticky; top: 1rem; }
    .ins-detail__related-side { position: static; }
    .ins-detail__collapse-sum { display: none; }
}
.ins-detail__panel nav { display: flex; flex-direction: column; gap: .25rem; }
.ins-detail__panel nav a {
    display: flex;
    align-items: center;
    gap: .55rem;
    padding: .55rem .65rem;
    border-radius: .55rem;
    color: #334155;
    font-size: .9rem;
    transition: background .2s, color .2s;
}
.ins-detail__panel nav a i { width: 1.1rem; text-align: center; color: var(--brand); }
.ins-detail__panel nav a:hover { background: var(--brand-soft); color: var(--brand); }
.ins-detail__panel nav a.is-active {
    background: var(--brand);
    color: #fff;
}
.ins-detail__panel nav a.is-active i { color: #fff; }
.ins-detail__related-side ul { list-style: none; margin: 0; padding: 0; }
.ins-detail__related-side li + li { margin-top: .55rem; padding-top: .55rem; border-top: 1px solid var(--line); }
.ins-detail__related-side a {
    display: block;
    font-size: .86rem;
    line-height: 1.45;
    font-weight: 600;
    color: var(--ink);
}
.ins-detail__related-side a:hover { color: var(--brand); }

.ins-detail__article {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 1rem;
    padding: 1.5rem 1.35rem 1.75rem;
    box-shadow: 0 4px 18px rgba(26,31,46,.04);
    max-width: 100%;
    min-width: 0;
    overflow-x: clip;
}
@media (min-width: 768px) {
    .ins-detail__article { padding: 2rem 2.25rem 2.25rem; }
}
/* 手机端：去掉左右间距，文章区满屏宽 */
@media (max-width: 767px) {
    .ins-detail {
        padding: 0 0 2.5rem;
    }
    .ins-detail__wrap.container {
        max-width: none !important;
        width: 100% !important;
        padding-left: 0 !important;
        padding-right: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }
    .ins-detail__grid {
        gap: 0;
    }
    .ins-detail__article {
        padding: 1.1rem 1rem 1.35rem;
        border-radius: 0;
        border-left: 0;
        border-right: 0;
        box-shadow: none;
        border-top: 0;
    }
    .ins-detail__title { font-size: 1.28rem; }
    .ins-detail__summary {
        font-size: .9rem;
        padding: .75rem .85rem;
        border-radius: 0;
    }
    .ins-detail__cover {
        margin-left: -1rem;
        margin-right: -1rem;
        border-radius: 0;
        width: calc(100% + 2rem);
        max-width: none;
    }
    .ins-detail__cover img {
        max-height: none;
        border-radius: 0;
    }
    .ins-prose img {
        border-radius: 0;
    }
    .ins-detail__aside {
        padding: .85rem 1rem 0;
    }
    .ins-detail__related {
        margin-top: 0;
        border-radius: 0;
        border-left: 0;
        border-right: 0;
        box-shadow: none;
    }
}
.ins-detail__crumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-start;
    gap: .4rem .5rem;
    font-size: .8rem;
    color: var(--sub);
    margin-bottom: 1.25rem;
}
.ins-detail__crumb a { color: var(--sub); }
.ins-detail__crumb a:hover { color: var(--brand); }
.ins-detail__crumb i { font-size: .7rem; opacity: .7; }
.ins-detail__header {
    text-align: center;
    margin: 0 auto 1.35rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--line);
}
.ins-detail__title {
    margin: 0 0 1rem;
    font-size: clamp(1.45rem, 2.6vw, 1.95rem);
    font-weight: 750;
    line-height: 1.4;
    letter-spacing: -.02em;
    color: var(--ink);
}
.ins-detail__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: .65rem 1rem;
    font-size: .82rem;
    color: var(--sub);
}
.ins-detail__meta i { margin-right: .3rem; }
.ins-detail__tag {
    display: inline-flex;
    align-items: center;
    background: var(--brand-soft);
    color: var(--brand) !important;
    font-weight: 700;
    font-size: .75rem;
    padding: .2rem .55rem;
    border-radius: .35rem;
}
.ins-detail__summary {
    margin: 0 0 1.35rem;
    padding: .9rem 1rem;
    background: #f8fafc;
    border-left: 3px solid var(--brand);
    border-radius: 0 .55rem .55rem 0;
    color: #475569;
    font-size: .95rem;
    line-height: 1.7;
}
.ins-detail__cover {
    margin: 0 0 1.5rem;
    border-radius: .75rem;
    overflow: hidden;
    background: #eef2f6;
}
.ins-detail__cover img {
    display: block;
    width: 100%;
    max-height: 22rem;
    object-fit: cover;
}

/* 正文排版 */
.ins-prose {
    color: #334155;
    font-size: 1.02rem;
    line-height: 1.9;
    word-break: break-word;
    overflow-wrap: anywhere;
    max-width: 100%;
    min-width: 0;
}
.ins-prose > *:first-child { margin-top: 0; }
.ins-prose h2 {
    font-size: 1.3rem;
    font-weight: 750;
    color: var(--ink);
    margin: 2rem 0 .9rem;
    padding-bottom: .45rem;
    border-bottom: 1px solid var(--line);
    line-height: 1.4;
}
.ins-prose h3 {
    font-size: 1.12rem;
    font-weight: 700;
    color: #243044;
    margin: 1.6rem 0 .7rem;
    line-height: 1.4;
}
.ins-prose h4 {
    font-size: 1.02rem;
    font-weight: 700;
    color: #334155;
    margin: 1.35rem 0 .55rem;
}
.ins-prose p { margin: 0 0 1.05rem; max-width: 100%; }
.ins-prose ul, .ins-prose ol {
    margin: 0 0 1.1rem;
    padding-left: 1.35rem;
}
.ins-prose li { margin: .35rem 0; padding-left: .15rem; }
.ins-prose li::marker { color: var(--brand); }
.ins-prose strong { color: #1e293b; font-weight: 700; }
.ins-prose a { color: var(--brand); text-decoration: underline; text-underline-offset: 2px; word-break: break-all; }
.ins-prose a:hover { color: #d45f08; }
.ins-prose blockquote {
    margin: 1.25rem 0;
    padding: .85rem 1rem;
    background: var(--brand-soft);
    border-left: 3px solid var(--brand);
    border-radius: 0 .5rem .5rem 0;
    color: #5b4636;
    max-width: 100%;
    box-sizing: border-box;
}
.ins-prose code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: .88em;
    background: #f1f5f9;
    color: #0f172a;
    padding: .12rem .4rem;
    border-radius: .3rem;
    word-break: break-word;
}
.ins-prose pre {
    margin: 1.2rem 0;
    padding: 1rem 1.1rem;
    background: #1a2332;
    color: #e2e8f0;
    border-radius: .65rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    font-size: .88rem;
    line-height: 1.65;
    max-width: 100%;
    box-sizing: border-box;
}
.ins-prose pre code {
    background: transparent;
    color: inherit;
    padding: 0;
    font-size: inherit;
    white-space: pre;
}
.ins-prose img,
.ins-prose video,
.ins-prose iframe,
.ins-prose embed,
.ins-prose object {
    max-width: 100% !important;
    width: auto !important;
    height: auto !important;
    border-radius: .55rem;
    margin: 1rem auto;
    display: block;
    box-sizing: border-box;
}
.ins-detail__cover img {
    max-width: 100%;
    height: auto;
}
/* 表格：固定布局 + 单元格换行，避免宽表撑破手机屏 */
.ins-prose table {
    width: 100%;
    max-width: 100%;
    border-collapse: collapse;
    margin: 1.2rem 0;
    font-size: .92rem;
    table-layout: fixed;
    box-sizing: border-box;
}
.ins-prose th, .ins-prose td {
    border: 1px solid var(--line);
    padding: .55rem .7rem;
    text-align: left;
    word-break: break-word;
    overflow-wrap: anywhere;
    vertical-align: top;
}
.ins-prose th { background: #f8fafc; font-weight: 700; }
.ins-prose hr {
    border: 0;
    border-top: 1px solid var(--line);
    margin: 1.75rem 0;
}
@media (max-width: 639px) {
    .ins-prose { font-size: .98rem; line-height: 1.85; }
    .ins-prose h2 { font-size: 1.15rem; margin: 1.55rem 0 .75rem; }
    .ins-prose h3 { font-size: 1.05rem; }
    .ins-prose pre { padding: .85rem .9rem; font-size: .82rem; }
    .ins-prose th, .ins-prose td { padding: .45rem .55rem; font-size: .86rem; }
}

.ins-detail__foot {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: .75rem;
    margin-top: 2rem;
    padding-top: 1.15rem;
    border-top: 1px solid var(--line);
}
.ins-detail__back, .ins-detail__more-cat {
    font-size: .88rem;
    font-weight: 600;
    color: var(--brand);
}
.ins-detail__back:hover, .ins-detail__more-cat:hover { color: #d45f08; }

.ins-detail__related {
    margin-top: 1.25rem;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 1rem;
    padding: 1.25rem 1.2rem 1.35rem;
}
.ins-detail__related h3 {
    margin: 0 0 1rem;
    font-size: 1.05rem;
    font-weight: 700;
}
.ins-detail__related-grid {
    display: grid;
    gap: .75rem;
}
@media (min-width: 768px) {
    .ins-detail__related-grid { grid-template-columns: repeat(2, 1fr); }
}
.ins-detail__related-grid a {
    display: block;
    padding: .95rem 1rem;
    border: 1px solid var(--line);
    border-radius: .7rem;
    background: #fafbfc;
    transition: border-color .2s, background .2s;
}
.ins-detail__related-grid a:hover {
    border-color: #f0c09a;
    background: var(--brand-soft);
}
.ins-detail__related-grid strong {
    display: block;
    font-size: .92rem;
    line-height: 1.45;
    color: var(--ink);
    margin-bottom: .35rem;
}
.ins-detail__related-grid span {
    display: block;
    font-size: .8rem;
    color: var(--sub);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

@media (max-width: 1023px) {
    .ins-detail__related-side { display: none; }
}

/* ---- category.html ---- */
.ins-cat-page {
    --ink: #1a1f2e;
    --sub: #5b6478;
    --line: #e8ecf1;
    --bg: #fafbfc;
    --card: #fff;
    --brand: #ea6c0c;
    --brand-soft: #fff4eb;
    background: var(--bg);
    color: var(--ink);
    padding: 1.75rem 0 3.25rem;
}
.ins-cat-page__crumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .4rem .5rem;
    font-size: .8rem;
    color: var(--sub);
    margin-bottom: 1.15rem;
}
.ins-cat-page__crumb a { color: var(--sub); }
.ins-cat-page__crumb a:hover { color: var(--brand); }
.ins-cat-page__crumb i { font-size: .7rem; opacity: .7; }

.ins-cat-page__grid {
    display: grid;
    gap: 1.35rem;
}
@media (min-width: 1024px) {
    .ins-cat-page__grid {
        grid-template-columns: 220px minmax(0, 1fr);
        gap: 1.5rem;
        align-items: start;
    }
}

.ins-cat-page__panel {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: .9rem;
    padding: 1.05rem .9rem;
    box-shadow: 0 1px 2px rgba(26,31,46,.03);
}
@media (min-width: 1024px) {
    .ins-cat-page__panel { position: sticky; top: 1rem; }
}
.ins-cat-page__panel h3 {
    margin: 0 0 .7rem;
    padding: 0 .4rem .65rem;
    border-bottom: 1px solid var(--line);
    font-size: .9rem;
    font-weight: 700;
}
.ins-cat-page__panel nav {
    display: flex;
    flex-direction: column;
    gap: .2rem;
}
.ins-cat-page__panel nav a {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem .6rem;
    border-radius: .5rem;
    font-size: .875rem;
    color: #334155;
    transition: background .2s, color .2s;
}
.ins-cat-page__panel nav a i {
    width: 1rem;
    text-align: center;
    color: var(--brand);
    font-size: .85rem;
}
.ins-cat-page__panel nav a:hover {
    background: var(--brand-soft);
    color: var(--brand);
}
.ins-cat-page__panel nav a.is-active {
    background: var(--brand);
    color: #fff;
}
.ins-cat-page__panel nav a.is-active i { color: #fff; }

.ins-cat-page__head {
    display: flex;
    align-items: flex-start;
    gap: .9rem;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: .9rem;
    padding: 1.2rem 1.25rem;
    margin-bottom: 1rem;
    box-shadow: 0 1px 2px rgba(26,31,46,.03);
}
.ins-cat-page__icon {
    flex-shrink: 0;
    width: 2.6rem;
    height: 2.6rem;
    border-radius: .6rem;
    background: var(--brand-soft);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
}
.ins-cat-page__head h1 {
    margin: 0 0 .3rem;
    font-size: 1.35rem;
    font-weight: 750;
    line-height: 1.35;
    letter-spacing: -.01em;
}
.ins-cat-page__head p {
    margin: 0;
    font-size: .875rem;
    line-height: 1.55;
    color: var(--sub);
}

.ins-cat-page__list {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: .9rem;
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(26,31,46,.03);
}
.ins-cat-page__item {
    display: flex;
    align-items: center;
    gap: .85rem;
    padding: 1.1rem 1.2rem;
    border-bottom: 1px solid var(--line);
    transition: background .2s;
}
.ins-cat-page__item:last-child { border-bottom: 0; }
.ins-cat-page__item:hover { background: #fffaf5; }
.ins-cat-page__item-body { flex: 1; min-width: 0; }
.ins-cat-page__item h2 {
    margin: 0 0 .4rem;
    font-size: 1.02rem;
    font-weight: 700;
    line-height: 1.45;
    color: var(--ink);
}
.ins-cat-page__item:hover h2 { color: var(--brand); }
.ins-cat-page__item h2 em {
    display: inline-block;
    font-style: normal;
    font-size: .68rem;
    font-weight: 700;
    color: #b45309;
    background: #fef3c7;
    border-radius: .25rem;
    padding: .08rem .35rem;
    margin-right: .35rem;
    vertical-align: .1em;
}
.ins-cat-page__item p {
    margin: 0 0 .55rem;
    font-size: .86rem;
    line-height: 1.6;
    color: var(--sub);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.ins-cat-page__meta {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem .9rem;
    font-size: .78rem;
    color: #7b8496;
}
.ins-cat-page__meta i { margin-right: .28rem; }
.ins-cat-page__arrow {
    flex-shrink: 0;
    color: #c5ccd8;
    font-size: .95rem;
    transition: color .2s, transform .2s;
}
.ins-cat-page__item:hover .ins-cat-page__arrow {
    color: var(--brand);
    transform: translateX(2px);
}

.ins-cat-page__pager {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: .65rem 1rem;
    margin-top: 1rem;
    font-size: .84rem;
    color: var(--sub);
}
.ins-cat-page__pager a {
    padding: .4rem .85rem;
    border: 1px solid var(--line);
    border-radius: .45rem;
    background: var(--card);
    color: #334155;
}
.ins-cat-page__pager a:hover {
    border-color: #f0c09a;
    color: var(--brand);
    background: var(--brand-soft);
}

.ins-cat-page__empty {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: .9rem;
    text-align: center;
    padding: 3rem 1.25rem;
}
.ins-cat-page__empty i {
    font-size: 2.25rem;
    color: #d1d7e0;
    margin-bottom: .75rem;
}
.ins-cat-page__empty p {
    margin: 0 0 1rem;
    font-size: .95rem;
    color: var(--sub);
}
.ins-cat-page__empty a {
    display: inline-block;
    font-size: .875rem;
    font-weight: 600;
    color: var(--brand);
}
.ins-cat-page__empty a:hover { color: #d45f08; }

@media (max-width: 639px) {
    .ins-cat-page__head { padding: 1rem 1.05rem; }
    .ins-cat-page__head h1 { font-size: 1.2rem; }
    .ins-cat-page__item { padding: .95rem 1rem; }
    .ins-cat-page__item h2 { font-size: .98rem; }
}