:root {
    --brand: #176c4b;
    --brand-dark: #0f5137;
    --brand-soft: #e4f1e9;
    --ink: #14261f;
    --text: #405047;
    --muted: #69736c;
    --line: rgba(20, 38, 31, .12);
    --surface: #fffffc;
    --canvas: #f4f1e9;
    --success: #176c4b;
    --radius-sm: 10px;
    --radius: 16px;
    --radius-lg: 24px;
    --shadow: 0 14px 38px rgba(38, 57, 48, .08);
    --shell: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background:
        radial-gradient(circle at 8% 2%, rgba(212, 225, 205, .42), transparent 28rem),
        radial-gradient(circle at 94% 18%, rgba(235, 213, 175, .24), transparent 26rem),
        var(--canvas);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input { font: inherit; }
.shell { width: min(calc(100% - 40px), var(--shell)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 1000; transform: translateY(-150%); padding: 8px 12px; border-radius: 8px; background: var(--ink); color: #fff; }
.skip-link:focus { transform: translateY(0); }

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(250, 248, 242, .92);
    border-bottom: 1px solid rgba(20, 38, 31, .1);
    backdrop-filter: blur(18px);
}
.site-header__inner { min-height: 68px; display: flex; align-items: center; gap: 22px; }
.brand { display: inline-flex; align-items: center; gap: 10px; min-width: max-content; color: var(--ink); font-weight: 800; }
.brand img { max-width: 150px; max-height: 36px; object-fit: contain; }
.brand__mark { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.36); border-radius: 12px; background: var(--brand); color: #fff; box-shadow: 0 8px 20px rgba(23,108,75,.17); }
.brand__mark img { width: 36px; height: 36px; border-radius: 12px; object-fit: cover; }
.brand__copy { display: flex; flex-direction: column; line-height: 1.08; }
.brand__copy small { margin-top: 4px; color: #788179; font-size: 10px; font-weight: 600; letter-spacing: .02em; }
.brand__text { font-size: 20px; font-weight: 800; letter-spacing: -.02em; }
.brand__suffix { padding-left: 10px; border-left: 1px solid var(--line); color: var(--muted); font-size: 13px; font-weight: 600; }
.primary-nav { flex: 1; display: flex; align-items: center; justify-content: flex-end; gap: 4px; }
.primary-nav > a, .primary-nav .nav-link { display: block; padding: 10px 12px; border-radius: 9px; color: #526158; font-size: 14px; font-weight: 600; }
.primary-nav > a:hover, .primary-nav .nav-link:hover { background: var(--brand-soft); color: var(--brand); }
.blog-header-nav, .nav-list { margin: 0; padding: 0; }
.nav-list { display: flex; align-items: center; gap: 4px; list-style: none; }
.list-menu { position: relative; list-style: none; }
.dropdown-menus { display: none; position: absolute; top: 100%; left: 0; z-index: 10; min-width: 180px; padding: 8px; margin: 0; list-style: none; border: 1px solid var(--line); border-radius: 12px; background: #fff; box-shadow: var(--shadow); }
.list-menu:hover > .dropdown-menus { display: block; }
.header-actions { display: flex; align-items: center; gap: 12px; min-width: max-content; }
.header-link {
    padding: 8px 12px;
    border: 1px solid rgba(23, 108, 75, .22);
    border-radius: 9px;
    color: var(--brand);
    background: var(--brand-soft);
    font-size: 14px;
    font-weight: 700;
}
.header-link:hover { border-color: var(--brand); color: var(--brand-dark); }
.nav-order-link { display: none !important; }
.nav-toggle { display: none; width: 42px; height: 42px; padding: 10px; border: 0; border-radius: 10px; background: transparent; }
.nav-toggle span:not(.sr-only) { display: block; width: 22px; height: 2px; margin: 4px auto; border-radius: 2px; background: var(--ink); }

.button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 18px; border: 1px solid transparent; border-radius: 11px; font-weight: 700; line-height: 1.2; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-1px); }
.button--small { min-height: 40px; padding: 8px 15px; font-size: 14px; }
.button--primary { background: var(--brand); color: #fff; box-shadow: 0 8px 18px rgba(23,108,75,.18); }
.button--primary:hover { background: var(--brand-dark); }
.button--secondary { border-color: rgba(20,38,31,.14); background: rgba(255,255,252,.78); color: var(--ink); }
.button--secondary:hover { border-color: var(--brand); color: var(--brand); }
.button--light { background: #fff; color: var(--brand-dark); }
.button--full { width: 100%; }

.eyebrow { display: block; margin-bottom: 8px; color: var(--brand); font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.eyebrow--light { color: #dceee4; }
.hero { position: relative; overflow: hidden; padding: 78px 0 68px; background: linear-gradient(145deg, rgba(255,255,252,.9) 0%, rgba(234,241,229,.88) 58%, rgba(249,246,236,.9) 100%); border-bottom: 1px solid rgba(20,38,31,.09); }
.hero::after { content: ""; position: absolute; right: -110px; top: -210px; width: 520px; height: 520px; border-radius: 50%; background: radial-gradient(circle, rgba(23,108,75,.15), rgba(23,108,75,0) 68%); }
.hero__grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0,1.5fr) minmax(300px,.7fr); gap: 70px; align-items: center; }
.hero h1 { max-width: 760px; margin: 0 0 18px; color: var(--ink); font-size: clamp(38px, 5vw, 62px); line-height: 1.12; letter-spacing: -.04em; }
.hero p { max-width: 710px; margin: 0; color: var(--text); font-size: 18px; line-height: 1.8; }
.hero__actions { display: flex; gap: 12px; margin-top: 30px; }
.hero__panel { padding: 10px 26px; border: 1px solid rgba(255,255,255,.8); border-radius: var(--radius-lg); background: rgba(255,255,255,.72); box-shadow: var(--shadow); backdrop-filter: blur(12px); }
.hero__panel div { display: flex; flex-direction: column; padding: 18px 0; border-bottom: 1px solid var(--line); }
.hero__panel div:last-child { border-bottom: 0; }
.hero__panel strong { color: var(--ink); font-size: 17px; }
.hero__panel span { color: var(--muted); font-size: 14px; }

.category-section { padding: 70px 0 38px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 26px; }
.section-heading h2 { margin: 0; color: var(--ink); font-size: clamp(26px, 3vw, 34px); line-height: 1.25; letter-spacing: -.02em; }
.section-heading > p { max-width: 420px; margin: 0; color: var(--muted); font-size: 14px; }
.section-heading--compact { margin-bottom: 20px; }
.category-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 14px; }
.category-card { min-width: 0; min-height: 112px; display: flex; align-items: center; gap: 14px; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: 0 6px 20px rgba(15,23,42,.035); transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease; }
a.category-card:hover { transform: translateY(-2px); border-color: rgba(23,108,75,.32); box-shadow: var(--shadow); }
.category-card__icon { flex: 0 0 auto; width: 56px; height: 56px; display: grid; place-items: center; overflow: hidden; border-radius: 15px; background: var(--brand-soft); color: var(--brand); font-weight: 800; box-shadow: 0 5px 14px rgba(23,108,75,.12); }
.category-card__icon img { width: 100%; height: 100%; display: block; object-fit: cover; }
.category-card > span:nth-child(2) { min-width: 0; display: flex; flex: 1; flex-direction: column; }
.category-card strong { color: var(--ink); font-size: 16px; }
.category-card small { overflow: hidden; color: var(--muted); font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }
.category-card__arrow { color: #92a198; font-size: 20px; }
.category-card--placeholder { opacity: .82; }

.content-layout { display: grid; grid-template-columns: minmax(0,1fr) 310px; gap: 34px; padding: 40px 0 76px; align-items: start; }
.article-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; }
.article-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 8px 24px rgba(15,23,42,.04); transition: transform .2s ease, box-shadow .2s ease; }
.article-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.article-card__cover { aspect-ratio: 16/9; display: block; overflow: hidden; background: linear-gradient(145deg,#e4f1e9,#d8e8dd); }
.article-card__cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.article-card:hover .article-card__cover img { transform: scale(1.025); }
.cover-placeholder { width: 100%; height: 100%; display: grid; place-content: center; text-align: center; background: linear-gradient(145deg,#e4f1e9,#f8f6ef); color: var(--brand); }
.cover-placeholder b { font-size: 44px; line-height: 1; }
.cover-placeholder small { margin-top: 8px; color: #5b7768; }
.article-card__body { padding: 20px; }
.article-meta { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 12px; }
.article-meta span { color: var(--brand); font-weight: 700; }
.article-card h3 { margin: 10px 0 9px; color: var(--ink); font-size: 20px; line-height: 1.45; }
.article-card h3 a:hover { color: var(--brand); }
.article-card p { display: -webkit-box; min-height: 51px; margin: 0; overflow: hidden; color: var(--muted); font-size: 14px; line-height: 1.8; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.read-more { display: inline-flex; gap: 6px; margin-top: 16px; color: var(--brand); font-size: 14px; font-weight: 700; }
.empty-state { padding: 70px 24px; border: 1px dashed #c8d4cc; border-radius: var(--radius-lg); background: #fff; text-align: center; }
.empty-state__icon { color: var(--brand); font-size: 38px; }
.empty-state h2 { margin: 8px 0; color: var(--ink); }
.empty-state p { margin: 0 0 24px; color: var(--muted); }

.guide-sidebar { display: grid; gap: 18px; position: sticky; top: 96px; }
.sidebar-card { padding: 23px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 8px 24px rgba(15,23,42,.04); }
.sidebar-card h2 { margin: 0 0 15px; color: var(--ink); font-size: 20px; }
.sidebar-links { display: grid; }
.sidebar-links a { display: flex; align-items: center; justify-content: space-between; padding: 11px 0; border-top: 1px solid #e8ece8; color: #526158; font-size: 14px; }
.sidebar-links a:hover { color: var(--brand); }
.sidebar-links b { color: #92a198; }
.sidebar-note { color: var(--muted); font-size: 14px; }
.sidebar-card--accent { border-color: transparent; background: linear-gradient(145deg,var(--brand),var(--brand-dark)); color: #fff; }
.sidebar-card--accent h2 { color: #fff; }
.sidebar-card--accent p { color: #dceee4; font-size: 14px; }
.sidebar-order-link { display: block; margin-top: 14px; color: #dceee4; font-size: 13px; text-align: center; }

.decision-section { padding: 0 0 80px; }
.decision-card { display: flex; align-items: center; justify-content: space-between; gap: 40px; padding: 42px 46px; border-radius: var(--radius-lg); background: linear-gradient(135deg,var(--brand),var(--brand-dark)); color: #fff; box-shadow: 0 20px 46px rgba(23,108,75,.2); }
.decision-card h2 { margin: 0 0 8px; font-size: 30px; line-height: 1.3; }
.decision-card p { max-width: 720px; margin: 0; color: #dceee4; }

.breadcrumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding-top: 28px; color: var(--muted); font-size: 13px; }
.breadcrumbs a:hover { color: var(--brand); }
.article-page { background: var(--surface); }
.article-shell { max-width: 1120px; padding-bottom: 90px; }
.article-header { max-width: 820px; margin: 66px auto 42px; text-align: center; }
.article-category { display: inline-flex; padding: 6px 11px; border-radius: 99px; background: var(--brand-soft); color: var(--brand); font-size: 13px; font-weight: 700; }
.article-header h1 { margin: 18px 0 16px; color: var(--ink); font-size: clamp(34px,5vw,54px); line-height: 1.2; letter-spacing: -.035em; }
.article-deck { max-width: 760px; margin: 0 auto; color: var(--muted); font-size: 18px; }
.article-byline { display: inline-flex; align-items: center; gap: 10px; margin-top: 24px; text-align: left; }
.article-byline > span:last-child { display: flex; flex-direction: column; }
.article-byline b { color: var(--ink); font-size: 13px; }
.article-byline small { color: var(--muted); font-size: 12px; }
.editor-avatar { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: #fff; font-weight: 800; }
.article-cover { max-width: 980px; margin: 0 auto 48px; overflow: hidden; border-radius: var(--radius-lg); background: var(--brand-soft); }
.article-cover img { width: 100%; max-height: 520px; object-fit: cover; }
.article-layout { display: grid; grid-template-columns: minmax(0,760px) 240px; justify-content: center; gap: 60px; align-items: start; }
.article-main { min-width: 0; }
.quick-answer { margin: 0 0 30px; padding: 20px 22px; border: 1px solid rgba(23,108,75,.2); border-left: 4px solid var(--brand); border-radius: var(--radius-sm); background: rgba(228,241,233,.58); }
.quick-answer strong { color: var(--brand-dark); }
.quick-answer p { margin: 5px 0 0; color: #4c6457; }
.article-content { color: #34463d; font-size: 17px; line-height: 1.85; overflow-wrap: anywhere; }
.article-content h2 { margin: 2.4em 0 .75em; color: var(--ink); font-size: 29px; line-height: 1.35; scroll-margin-top: 96px; }
.article-content h3 { margin: 2em 0 .7em; color: var(--ink); font-size: 22px; scroll-margin-top: 96px; }
.article-content p { margin: 0 0 1.25em; }
.article-content a { color: var(--brand); text-decoration: underline; text-decoration-color: #b9d4c4; text-underline-offset: 3px; }
.article-content img { height: auto; margin: 26px auto; border: 1px solid var(--line); border-radius: 14px; }
.article-content blockquote { margin: 26px 0; padding: 18px 22px; border-left: 4px solid #f59e0b; border-radius: 0 10px 10px 0; background: #fff9eb; color: #5f4a1d; }
.article-content table { display: block; width: 100%; overflow-x: auto; border-spacing: 0; border-collapse: collapse; }
.article-content th, .article-content td { min-width: 130px; padding: 12px 14px; border: 1px solid var(--line); text-align: left; }
.article-content th { background: #f2f5f1; color: var(--ink); }
.article-aside { position: sticky; top: 96px; display: grid; gap: 18px; }
.toc-card, .article-shop-card { padding: 18px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.toc-card nav { display: grid; gap: 8px; }
.toc-card a { color: var(--muted); font-size: 13px; line-height: 1.5; }
.toc-card a:hover { color: var(--brand); }
.toc-card .toc-sub { padding-left: 13px; }
.article-shop-card { background: rgba(228,241,233,.55); }
.article-shop-card strong { color: var(--ink); }
.article-shop-card p { margin: 6px 0 10px; color: var(--muted); font-size: 13px; }
.article-shop-card a { color: var(--brand); font-size: 13px; font-weight: 700; }
.mobile-toc { display: none; }
.article-cta { display: flex; align-items: center; justify-content: space-between; gap: 26px; margin: 54px 0 32px; padding: 30px; border-radius: var(--radius); background: linear-gradient(135deg,var(--brand),var(--brand-dark)); color: #fff; }
.article-cta h2 { margin: 0 0 6px; font-size: 24px; }
.article-cta p { margin: 0; color: #dceee4; font-size: 14px; }
.article-footer-note { margin-top: 38px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.article-footer-note strong { color: var(--ink); }
.article-footer-note p { margin: 4px 0 0; }

.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 32px; }
.pagination a, .pagination span { min-width: 38px; min-height: 38px; display: grid; place-items: center; padding: 5px 9px; border: 1px solid var(--line); border-radius: 9px; background: #fff; font-size: 13px; }
.pagination span { border-color: var(--brand); background: var(--brand); color: #fff; }

.topic-hubs { padding: 64px 0 10px; }
.topic-hub-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
.topic-hub-card {
    min-width: 0;
    display: grid;
    grid-template-columns: 52px minmax(0,1fr);
    gap: 14px;
    align-items: center;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: 0 8px 24px rgba(15,23,42,.04);
    transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.topic-hub-card:hover { transform: translateY(-2px); border-color: rgba(23,108,75,.32); box-shadow: var(--shadow); }
.topic-hub-card__icon {
    grid-row: span 2;
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: 15px;
    color: #fff;
    background: linear-gradient(145deg,var(--brand),var(--brand-dark));
    font-size: 20px;
    font-weight: 800;
}
.topic-hub-card > span:nth-child(2) { min-width: 0; display: grid; gap: 3px; }
.topic-hub-card strong { color: var(--ink); font-size: 17px; }
.topic-hub-card small { color: var(--muted); font-size: 13px; line-height: 1.55; }
.topic-hub-card b { grid-column: 2; color: var(--brand); font-size: 13px; }

.article-products {
    margin: 50px 0 34px;
    padding-top: 30px;
    border-top: 1px solid var(--line);
}
.article-products__heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 18px;
}
.article-products__heading h2 { margin: 0; color: var(--ink); font-size: 25px; }
.article-products__heading > a { color: var(--brand); font-size: 13px; font-weight: 700; }
.article-product-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 12px; }
.article-product-card {
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fff;
}
.article-product-card__image { display: block; aspect-ratio: 1.25/1; overflow: hidden; background: #e8efe9; }
.article-product-card__image img { width: 100%; height: 100%; margin: 0; border: 0; border-radius: 0; object-fit: cover; }
.article-product-card > div { padding: 13px; }
.article-product-card h3 { min-height: 3em; margin: 0 0 6px; font-size: 14px; line-height: 1.5; }
.article-product-card h3 a:hover { color: var(--brand); }
.article-product-card p {
    display: -webkit-box;
    min-height: 3em;
    margin: 0;
    overflow: hidden;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.5;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}
.article-product-card__bottom { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 12px; }
.article-product-card__bottom strong { color: #b4533b; font-size: 18px; }
.article-product-card__bottom a { padding: 6px 9px; border-radius: 8px; color: #fff; background: var(--brand); font-size: 11px; font-weight: 700; }

.site-footer { padding: 54px 0 24px; background: #13251d; color: #cbded3; }
.footer-grid { display: grid; grid-template-columns: 1.3fr .7fr 1fr; gap: 60px; }
.footer-grid strong { display: block; margin-bottom: 10px; color: #fff; }
.footer-grid p { max-width: 460px; margin: 0; color: #94aa9e; font-size: 13px; }
.footer-grid nav { display: grid; align-content: start; gap: 7px; }
.footer-grid nav a { color: #cbded3; font-size: 13px; }
.footer-grid nav a:hover { color: #fff; }
.footer-brand strong { font-size: 20px; }
.footer-bottom { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 38px; padding-top: 20px; border-top: 1px solid #2a4035; color: #81988c; font-size: 12px; }

@media (max-width: 980px) {
    .site-header__inner { gap: 14px; }
    .nav-toggle { display: block; margin-left: auto; }
    .primary-nav { display: none; position: absolute; top: 68px; left: 0; right: 0; padding: 14px 20px 20px; border-bottom: 1px solid var(--line); background: rgba(250,248,242,.98); box-shadow: var(--shadow); }
    .primary-nav.is-open { display: block; }
    .nav-list { display: grid; }
    .primary-nav > a, .primary-nav .nav-link { padding: 11px 8px; }
    .primary-nav > .nav-order-link { display: block !important; margin-top: 8px; color: var(--brand); background: var(--brand-soft); }
    .dropdown-menus { position: static; display: block; padding: 0 0 0 14px; border: 0; box-shadow: none; }
    .header-link { display: none; }
    .hero__grid { grid-template-columns: 1fr; gap: 34px; }
    .hero__panel { display: grid; grid-template-columns: repeat(3,1fr); }
    .hero__panel div { padding: 16px; border-right: 1px solid var(--line); border-bottom: 0; }
    .hero__panel div:last-child { border-right: 0; }
    .content-layout { grid-template-columns: 1fr; }
    .topic-hub-grid { grid-template-columns: 1fr; }
    .guide-sidebar { position: static; grid-template-columns: repeat(2,minmax(0,1fr)); }
    .article-layout { grid-template-columns: minmax(0,740px); }
    .article-aside { display: none; }
    .mobile-toc { display: block; margin: 24px 0; padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px; background: rgba(228,241,233,.48); }
    .mobile-toc summary { cursor: pointer; color: var(--ink); font-weight: 700; }
    .mobile-toc nav { display: grid; gap: 8px; padding-top: 12px; }
    .mobile-toc a { color: var(--muted); font-size: 14px; }
    .mobile-toc .toc-sub { padding-left: 15px; }
}

@media (max-width: 720px) {
    .shell { width: min(calc(100% - 32px), var(--shell)); }
    .site-header__inner { min-height: 64px; }
    .brand__copy small { display: none; }
    .brand img { max-width: 120px; }
    .brand__text { font-size: 17px; }
    .header-actions .button { min-height: 38px; padding: 8px 11px; font-size: 13px; }
    .primary-nav { top: 64px; }
    .hero { padding: 56px 0 48px; }
    .hero h1 { font-size: 38px; }
    .hero p { font-size: 16px; }
    .hero__actions { flex-direction: column; }
    .hero__actions .button { width: 100%; }
    .hero__panel { grid-template-columns: 1fr; padding: 6px 18px; }
    .hero__panel div { padding: 14px 0; border-right: 0; border-bottom: 1px solid var(--line); }
    .category-section { padding-top: 50px; }
    .section-heading { display: block; }
    .section-heading > p { margin-top: 10px; }
    .category-grid { grid-template-columns: 1fr; }
    .category-card { min-height: 92px; }
    .content-layout { padding-top: 28px; padding-bottom: 56px; }
    .article-grid { grid-template-columns: 1fr; }
    .topic-hubs { padding-top: 46px; }
    .article-product-grid { grid-template-columns: 1fr; }
    .article-product-card { display: grid; grid-template-columns: 104px minmax(0,1fr); }
    .article-product-card__image { height: 100%; aspect-ratio: auto; }
    .article-product-card h3,
    .article-product-card p { min-height: 0; }
    .guide-sidebar { grid-template-columns: 1fr; }
    .decision-section { padding-bottom: 56px; }
    .decision-card { display: block; padding: 30px 24px; }
    .decision-card h2 { font-size: 25px; }
    .decision-card .button { width: 100%; margin-top: 24px; }
    .breadcrumbs { padding-top: 18px; }
    .article-header { margin: 42px auto 30px; text-align: left; }
    .article-header h1 { font-size: 34px; }
    .article-deck { font-size: 16px; }
    .article-cover { margin-bottom: 32px; border-radius: 15px; }
    .article-content { font-size: 16px; }
    .article-content h2 { font-size: 25px; }
    .article-content h3 { font-size: 20px; }
    .article-cta { display: block; padding: 26px 22px; }
    .article-cta .button { width: 100%; margin-top: 20px; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}

@media (max-width: 420px) {
    .header-actions { display: none; }
    .hero h1 { font-size: 34px; }
    .article-header h1 { font-size: 31px; }
}