:root {
  --ink: #0b2147;
  --muted: #637795;
  --blue: #1769ff;
  --blue-dark: #084ed2;
  --cyan: #16b8c5;
  --yellow: #ffbd24;
  --coral: #ff6758;
  --green: #31ad72;
  --violet: #7768e8;
  --line: #dfe9f5;
  --wash: #f3f8fd;
  --card: #fff;
  --shadow: 0 18px 55px rgba(23, 63, 116, .12);
  --radius: 24px;
  --shell: 1320px;
  --font: Inter, "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font: 16px/1.65 var(--font); text-rendering: optimizeLegibility; }
img { max-width: 100%; height: auto; }
a { color: inherit; }
button, input { font: inherit; }
.shell { width: min(calc(100% - 48px), var(--shell)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 1000; left: 16px; top: -100px; padding: 9px 14px; color: #fff; background: var(--blue); border-radius: 8px; }
.skip-link:focus { top: 12px; }
.eyebrow { margin: 0 0 9px; color: var(--coral); font-size: 12px; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }

.site-header { position: sticky; z-index: 50; top: 0; border-bottom: 1px solid rgba(215, 227, 241, .9); background: rgba(255, 255, 255, .92); backdrop-filter: blur(18px); }
.header-row { min-height: 78px; display: grid; grid-template-columns: auto 1fr auto auto; gap: 30px; align-items: center; }
.brand { display: flex; gap: 10px; align-items: center; color: var(--ink); font-size: 26px; font-weight: 900; text-decoration: none; letter-spacing: -.04em; }
.brand small { color: var(--blue); font-size: .62em; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; color: #fff; border-radius: 14px; background: linear-gradient(145deg, var(--blue), var(--cyan)); box-shadow: 0 10px 25px rgba(23, 105, 255, .25); font-size: 27px; }
.main-nav { justify-self: center; display: flex; gap: clamp(14px, 2vw, 30px); align-items: center; }
.main-nav a { color: #30486a; font-size: 14px; font-weight: 700; text-decoration: none; }
.main-nav a:hover { color: var(--blue); }
.search-button { padding: 9px 14px; display: flex; gap: 8px; align-items: center; color: var(--blue); border: 1px solid #bdd4ff; border-radius: 12px; background: #fff; cursor: pointer; font-weight: 800; }
.search-button svg { width: 19px; fill: none; stroke: currentColor; stroke-width: 2; }
.menu-button { display: none; border: 0; color: var(--ink); background: transparent; font-size: 24px; }

.hero { min-height: 700px; overflow: hidden; background: radial-gradient(circle at 82% 25%, rgba(22,184,197,.12), transparent 26%), radial-gradient(circle at 14% 90%, rgba(255,189,36,.13), transparent 24%), linear-gradient(180deg, #fff, #f4f9ff); }
.hero-grid { min-height: 700px; padding-block: 82px 70px; display: grid; grid-template-columns: minmax(0, .82fr) minmax(520px, 1.18fr); gap: 40px; align-items: center; }
.hero-copy h1 { max-width: 650px; margin: 0; font-size: clamp(54px, 6vw, 88px); line-height: .98; letter-spacing: -.06em; }
.hero-copy > p:not(.eyebrow) { max-width: 610px; margin: 24px 0; color: var(--muted); font-size: 20px; }
.hero-search { max-width: 640px; margin-top: 32px; padding: 8px; display: grid; grid-template-columns: 1fr auto; border: 1px solid #c7dbf3; border-radius: 17px; background: #fff; box-shadow: var(--shadow); }
.hero-search input { min-width: 0; padding: 12px 16px; border: 0; outline: 0; }
.hero-search button { padding: 13px 23px; color: #fff; border: 0; border-radius: 12px; background: linear-gradient(135deg, var(--blue), var(--blue-dark)); cursor: pointer; font-weight: 850; }
.hero-facts { margin-top: 28px; display: flex; gap: 28px; color: var(--muted); font-size: 13px; }
.hero-facts b { display: block; color: var(--ink); font-size: 21px; }

.knowledge-map { position: relative; min-height: 540px; }
.knowledge-map svg { position: absolute; z-index: 0; inset: 0; width: 100%; height: 100%; }
.knowledge-map svg path { fill: none; stroke: #bfd5ed; stroke-width: 1.6; stroke-dasharray: 5 7; }
.map-center, .topic-node { position: absolute; z-index: 2; display: grid; place-items: center; text-align: center; text-decoration: none; }
.map-center { left: 50%; top: 50%; width: 132px; height: 132px; transform: translate(-50%, -50%); color: #fff; border: 11px solid #dbeaff; border-radius: 50%; background: linear-gradient(145deg, var(--blue), var(--blue-dark)); box-shadow: 0 24px 55px rgba(23,105,255,.27); }
.map-center span { font-size: 42px; font-weight: 900; line-height: 1; }
.map-center b { font-size: 13px; }
.topic-node { width: 108px; height: 108px; color: var(--ink); border: 1px solid #d6e5f3; border-radius: 50%; background: #fff; box-shadow: 0 13px 30px rgba(27,70,122,.14); }
.topic-node:hover { transform: translateY(-4px); }
.topic-icon { width: 42px; height: 42px; display: grid; place-items: center; color: #fff; border-radius: 50%; background: var(--blue); font-weight: 900; }
.topic-node b { font-size: 12px; }
.node-1 { left: 8%; top: 6%; } .node-2 { left: 41%; top: 0; } .node-3 { right: 4%; top: 9%; }
.node-4 { right: 0; top: 42%; } .node-5 { right: 8%; bottom: 4%; } .node-6 { left: 41%; bottom: 0; }
.node-7 { left: 6%; bottom: 5%; } .node-8 { left: 0; top: 42%; }
.node-2 .topic-icon, .node-6 .topic-icon { background: var(--coral); }
.node-3 .topic-icon, .node-7 .topic-icon { background: var(--yellow); color: #563b00; }
.node-4 .topic-icon, .node-8 .topic-icon { background: var(--cyan); }
.node-5 .topic-icon { background: var(--violet); }

.home-section { padding-block: 86px; }
.section-head { margin-bottom: 30px; display: flex; justify-content: space-between; gap: 30px; align-items: end; }
.section-head h2 { margin: 0; font-size: clamp(34px, 4vw, 55px); line-height: 1.05; letter-spacing: -.045em; }
.section-head > a { color: var(--blue); font-weight: 850; text-decoration: none; }
.section-head > p { max-width: 520px; margin: 0; color: var(--muted); }
.latest-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.article-card { min-width: 0; overflow: hidden; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 20px; background: var(--card); box-shadow: 0 12px 34px rgba(22,65,115,.08); text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.article-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.article-card > img, .card-placeholder { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.card-placeholder { display: grid; place-items: center; color: #fff; background: linear-gradient(145deg, var(--blue), var(--cyan)); font-size: 50px; font-weight: 900; }
.card-copy { padding: 20px; display: flex; flex: 1; flex-direction: column; align-items: flex-start; }
.card-copy small { color: var(--coral); font-size: 11px; font-weight: 900; text-transform: uppercase; }
.card-copy strong { margin: 9px 0 18px; font-size: 20px; line-height: 1.25; }
.card-copy > span { margin-top: auto; color: var(--muted); font-size: 12px; }

.intent-section { padding-block: 86px; background: linear-gradient(180deg, #f4f9fe, #fff); }
.intent-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.intent-card { min-height: 320px; padding: 24px 20px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 19px; background: #fff; box-shadow: 0 12px 30px rgba(27,71,120,.07); text-decoration: none; }
.intent-card > span { width: 55px; height: 55px; display: grid; place-items: center; color: #fff; border-radius: 17px; background: var(--blue); font-size: 22px; font-weight: 900; }
.intent-card h3 { margin: 24px 0 9px; font-size: 20px; line-height: 1.15; }
.intent-card p { margin: 0; color: var(--muted); font-size: 13px; }
.intent-card b { margin-top: auto; color: var(--blue); font-size: 13px; }
.intent-2 > span { background: var(--yellow); color: #4b3500; } .intent-3 > span { background: var(--violet); }
.intent-4 > span { background: var(--coral); } .intent-5 > span { background: var(--cyan); } .intent-6 > span { background: var(--green); }

.routes-section { padding-top: 90px; }
.routes-grid { display: grid; gap: 18px; }
.learning-route { padding: 28px; display: grid; grid-template-columns: 300px 1fr; gap: 30px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(100deg, rgba(22,184,197,.11), #fff 44%); box-shadow: 0 13px 38px rgba(25,69,119,.08); text-decoration: none; }
.learning-route > div small { color: var(--cyan); font-weight: 900; }
.learning-route h3 { margin: 6px 0; font-size: 25px; line-height: 1.14; }
.learning-route p { margin: 0; color: var(--muted); font-size: 13px; }
.learning-route ol { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); align-items: center; list-style: none; }
.learning-route li { position: relative; padding-top: 52px; color: var(--muted); font-size: 12px; text-align: center; }
.learning-route li::before { content: ''; position: absolute; z-index: 2; left: 50%; top: 8px; width: 26px; height: 26px; transform: translateX(-50%); border: 7px solid #c7f2f4; border-radius: 50%; background: var(--cyan); }
.learning-route li:not(:last-child)::after { content: ''; position: absolute; left: 58%; right: -42%; top: 21px; border-top: 2px dotted #75d3da; }
.route-2 { background: linear-gradient(100deg, rgba(255,189,36,.14), #fff 44%); }
.route-2 > div small { color: #cc8b00; } .route-2 li::before { border-color: #fff0bd; background: var(--yellow); }
.route-2 li:not(:last-child)::after { border-color: #e5bd61; }
.route-3 { background: linear-gradient(100deg, rgba(255,103,88,.11), #fff 44%); }
.route-3 > div small { color: var(--coral); } .route-3 li::before { border-color: #ffe0dc; background: var(--coral); }
.route-3 li:not(:last-child)::after { border-color: #ee9c93; }

.common-section { padding-block: 84px; background: #f4f9fe; }
.common-links { display: grid; grid-template-columns: 1fr 1fr; gap: 0 34px; }
.common-links a { padding: 17px 0; display: grid; grid-template-columns: 36px 1fr auto; gap: 15px; align-items: center; border-bottom: 1px solid #dbe8f4; text-decoration: none; }
.common-links a:hover strong { color: var(--blue); }
.common-links span { color: var(--cyan); font-size: 12px; font-weight: 900; }
.common-links strong { line-height: 1.3; }
.common-links b { color: var(--blue); font-size: 24px; }

.subscribe { margin-top: 86px; margin-bottom: 86px; padding: 38px; display: grid; grid-template-columns: 160px 1fr minmax(360px, 1fr); gap: 34px; align-items: center; overflow: hidden; color: #fff; border-radius: 26px; background: radial-gradient(circle at 12% 18%, rgba(22,184,197,.62), transparent 25%), linear-gradient(135deg, #073eab, #1769ff 55%, #0e89de); box-shadow: 0 25px 70px rgba(23,105,255,.25); }
.subscribe-art { min-height: 130px; position: relative; }
.subscribe-art span { position: absolute; display: grid; place-items: center; color: var(--blue); border-radius: 50%; background: #fff; font-weight: 900; }
.subscribe-art span:nth-child(1) { width: 44px; height: 44px; left: 0; top: 5px; }
.subscribe-art span:nth-child(2) { width: 78px; height: 78px; left: 46px; top: 24px; font-size: 40px; }
.subscribe-art span:nth-child(3) { width: 46px; height: 46px; left: 15px; bottom: 0; }
.subscribe .eyebrow { color: #bfeeff; }
.subscribe h2 { margin: 0; font-size: 34px; line-height: 1.1; }
.subscribe p:not(.eyebrow) { margin: 10px 0 0; color: #dcecff; }
.subscribe-form { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.subscribe-form label:first-child { min-width: 0; }
.subscribe-form label:first-child span { position: absolute; width: 1px; height: 1px; overflow: hidden; }
.subscribe-form input[type=email] { width: 100%; min-width: 0; padding: 14px 15px; border: 0; border-radius: 12px; outline: 0; }
.subscribe-form button { padding: 13px 20px; color: #16304e; border: 0; border-radius: 12px; background: var(--yellow); cursor: pointer; font-weight: 900; }
.subscribe-form .consent, .subscribe-form output { grid-column: 1/-1; color: #e1efff; font-size: 11px; }
.subscribe-form output { color: #fff3a4; font-weight: 700; }

.breadcrumbs { margin-bottom: 20px; display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 13px; }
.breadcrumbs a { color: var(--blue); text-decoration: none; }
.article-hero { padding-top: 70px; }
.article-hero h1 { max-width: 1100px; margin: 0; font-size: clamp(42px, 5.2vw, 76px); line-height: 1.02; letter-spacing: -.055em; }
.article-hero > p { max-width: 900px; margin: 23px 0 0; color: var(--muted); font-size: 19px; }
.article-body { width: min(calc(100% - 48px), 940px); padding: 45px 0 35px; }
.article-cover { width: 100%; max-height: 620px; object-fit: cover; border-radius: 24px; box-shadow: var(--shadow); }
.article-meta { margin: 18px 0 36px; display: flex; flex-wrap: wrap; gap: 9px 20px; color: var(--muted); font-size: 13px; }
.article-meta a { color: var(--blue); text-decoration: none; }
.article-content { color: #1c3657; font-family: Georgia, "Times New Roman", serif; font-size: 19px; line-height: 1.82; }
.article-content > :first-child { margin-top: 0; }
.article-content h2, .article-content h3, .article-content h4 { color: var(--ink); font-family: var(--font); line-height: 1.15; letter-spacing: -.025em; scroll-margin-top: 105px; }
.article-content h2 { margin: 48px 0 17px; font-size: clamp(31px, 3.3vw, 44px); }
.article-content h3 { margin: 38px 0 14px; font-size: clamp(26px, 2.6vw, 35px); }
.article-content h4 { margin: 30px 0 12px; font-size: 23px; }
.article-content p { margin: 0 0 22px; }
.article-content img { margin: 28px auto; display: block; border-radius: 17px; }
.article-content figure { max-width: 100%; margin: 30px 0; }
.article-content figcaption { color: var(--muted); font: 12px/1.4 var(--font); text-align: center; }
.article-content blockquote { margin: 30px 0; padding: 21px 26px; border-left: 5px solid var(--yellow); border-radius: 0 16px 16px 0; background: #f4f9fd; }
.article-content table { width: 100%; margin: 26px 0; border-collapse: collapse; display: block; overflow-x: auto; font-family: var(--font); font-size: 15px; }
.article-content th, .article-content td { min-width: 120px; padding: 10px 12px; border: 1px solid var(--line); text-align: left; }
.article-content iframe { width: 100%; max-width: 100%; border: 0; border-radius: 16px; }
.article-content a { color: var(--blue); }
.article-content ul, .article-content ol { padding-left: 25px; }

.comments { margin-top: 70px; padding-top: 45px; border-top: 1px solid var(--line); font-family: var(--font); }
.article-section-head { display: flex; gap: 12px; align-items: center; }
.article-section-head h2 { margin: 0; font-size: 36px; }
.article-section-head span { min-width: 32px; height: 32px; display: grid; place-items: center; color: #fff; border-radius: 50%; background: var(--blue); font-size: 13px; }
.comments-note { color: var(--muted); font-size: 13px; }
.comment-list { margin-top: 28px; display: grid; gap: 18px; }
.comment { display: grid; grid-template-columns: 46px 1fr; gap: 14px; }
.comment .comment { margin-top: 18px; }
.comment.depth-1 { margin-left: 34px; }
.comment.depth-2 { margin-left: 26px; }
.comment-avatar { width: 46px; height: 46px; display: grid; place-items: center; color: #fff; border-radius: 15px; background: linear-gradient(145deg, var(--blue), var(--cyan)); font-weight: 900; }
.comment > div:last-child { min-width: 0; padding: 16px 19px; border: 1px solid var(--line); border-radius: 16px; background: #fbfdff; }
.comment header { display: flex; gap: 14px; align-items: center; }
.comment header time { color: var(--muted); font-size: 11px; }
.comment-text { margin-top: 8px; color: #304c6d; font-size: 14px; }
.comment-text p { margin: 0 0 8px; }
.related { padding-block: 75px; }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }

.archive { padding-block: 66px 90px; }
.archive header { margin-bottom: 38px; position: relative; }
.archive h1, .simple-page h1, .search-page h1 { max-width: 1000px; margin: 0; font-size: clamp(44px, 5vw, 72px); line-height: 1; letter-spacing: -.055em; }
.archive header > p:not(.eyebrow) { width: 100%; max-width: none; margin: 20px 0 10px; color: var(--muted); font-size: 17px; }
.archive header > span { color: var(--blue); font-size: 13px; font-weight: 800; }
.archive-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.simple-page { max-width: 940px; padding-block: 66px 90px; }
.simple-page .article-content { margin-top: 40px; }

.search-dialog { width: min(800px, calc(100% - 28px)); max-height: min(780px, calc(100vh - 36px)); padding: 0; border: 0; border-radius: 22px; background: #fff; box-shadow: 0 30px 100px rgba(9,31,65,.4); }
.search-dialog::backdrop { background: rgba(9,31,65,.55); backdrop-filter: blur(5px); }
.search-panel { padding: 28px; }
.search-top { display: flex; justify-content: space-between; gap: 20px; }
.search-top strong { font-size: 25px; }
.search-top p { margin: 2px 0 0; color: var(--muted); font-size: 12px; }
.search-top button { width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 12px; background: #fff; cursor: pointer; font-size: 25px; }
.search-panel > input, .search-page > input { width: 100%; margin-top: 22px; padding: 15px 17px; border: 2px solid #cbdcf0; border-radius: 13px; outline: 0; }
.search-panel > input:focus, .search-page > input:focus { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(23,105,255,.1); }
.search-results { max-height: 540px; margin-top: 18px; overflow: auto; display: grid; gap: 8px; }
.search-result { padding: 12px 14px; display: grid; grid-template-columns: 1fr auto; gap: 3px 14px; border: 1px solid var(--line); border-radius: 12px; text-decoration: none; }
.search-result strong { line-height: 1.3; }
.search-result small { color: var(--muted); }
.search-result span { grid-row: 1/3; grid-column: 2; align-self: center; color: var(--blue); font-size: 24px; }
.search-empty { color: var(--muted); }
.search-page { min-height: 620px; padding-block: 80px; }
.search-page > p:not(.eyebrow) { color: var(--muted); }
.page-results { max-height: none; }

.not-found { min-height: 70vh; padding-block: 100px; text-align: center; }
.not-found > span { color: var(--blue); font-size: 100px; font-weight: 900; line-height: 1; }
.not-found h1 { margin: 10px 0; font-size: 45px; }
.not-found p { color: var(--muted); }
.not-found a { margin: 15px 6px; padding: 12px 18px; display: inline-block; color: #fff; border-radius: 11px; background: var(--blue); text-decoration: none; font-weight: 800; }
.not-found a:last-child { color: var(--blue); border: 1px solid #bdd4ff; background: #fff; }

.site-footer { border-top: 1px solid var(--line); background: #f7faff; }
.footer-grid { padding-block: 48px; display: grid; grid-template-columns: 1.25fr repeat(3, 1fr); gap: 45px; }
.footer-brand { color: var(--blue); font-size: 25px; font-weight: 900; text-decoration: none; }
.footer-grid p { max-width: 300px; color: var(--muted); font-size: 13px; }
.footer-grid h2 { margin: 0 0 13px; font-size: 14px; }
.footer-grid > div > a:not(.footer-brand) { margin: 7px 0; display: block; color: var(--muted); font-size: 13px; text-decoration: none; }
.footer-bottom { padding-block: 18px; color: var(--muted); border-top: 1px solid var(--line); font-size: 12px; }

@media (max-width: 1180px) {
  .main-nav { gap: 16px; }
  .main-nav a:nth-child(n+6) { display: none; }
  .hero-grid { grid-template-columns: .88fr 1.12fr; }
  .intent-grid { grid-template-columns: repeat(3, 1fr); }
  .intent-card { min-height: 270px; }
  .subscribe { grid-template-columns: 120px 1fr; }
  .subscribe-form { grid-column: 1/-1; }
}

@media (max-width: 900px) {
  .shell { width: min(calc(100% - 30px), 760px); }
  .header-row { grid-template-columns: 1fr auto auto; gap: 12px; }
  .main-nav { position: fixed; inset: 72px 15px auto; padding: 18px; display: none; grid-template-columns: repeat(2, 1fr); border: 1px solid var(--line); border-radius: 17px; background: #fff; box-shadow: var(--shadow); }
  .main-nav.open { display: grid; }
  .main-nav a:nth-child(n) { display: block; }
  .menu-button { display: block; }
  .hero-grid { padding-top: 62px; grid-template-columns: 1fr; }
  .knowledge-map { min-height: 510px; }
  .latest-grid, .archive-grid { grid-template-columns: repeat(2, 1fr); }
  .learning-route { grid-template-columns: 1fr; }
  .common-links { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .shell { width: calc(100% - 22px); }
  .header-row { min-height: 68px; }
  .brand { font-size: 23px; }
  .brand-mark { width: 37px; height: 37px; border-radius: 12px; }
  .search-button { width: 44px; height: 44px; padding: 0; justify-content: center; }
  .search-button span { display: none; }
  .hero { min-height: auto; }
  .hero-grid { min-height: 0; padding-block: 48px; }
  .hero-copy h1 { font-size: clamp(45px, 13vw, 62px); }
  .hero-copy > p:not(.eyebrow) { font-size: 17px; }
  .hero-search { grid-template-columns: 1fr; }
  .hero-search button { margin-top: 7px; }
  .hero-facts { gap: 15px; }
  .knowledge-map { min-height: 390px; transform: scale(.92); }
  .topic-node { width: 82px; height: 82px; }
  .topic-icon { width: 33px; height: 33px; }
  .topic-node b { font-size: 10px; }
  .map-center { width: 105px; height: 105px; }
  .home-section, .intent-section, .common-section { padding-block: 58px; }
  .section-head { display: block; }
  .section-head > a, .section-head > p { margin-top: 12px; display: block; }
  .latest-grid, .archive-grid, .related-grid { grid-template-columns: 1fr; }
  .intent-grid { grid-template-columns: 1fr 1fr; }
  .intent-card { min-height: 260px; padding: 19px 16px; }
  .intent-card h3 { font-size: 17px; }
  .learning-route { padding: 21px; }
  .learning-route ol { grid-template-columns: 1fr; gap: 8px; }
  .learning-route li { min-height: 40px; padding: 10px 0 10px 48px; text-align: left; }
  .learning-route li::before { left: 12px; top: 8px; transform: none; }
  .learning-route li:not(:last-child)::after { left: 24px; right: auto; top: 33px; height: 26px; border-top: 0; border-left: 2px dotted #75d3da; }
  .subscribe { margin-block: 55px; padding: 24px; grid-template-columns: 1fr; }
  .subscribe-art { display: none; }
  .subscribe-form { grid-template-columns: 1fr; }
  .subscribe-form .consent, .subscribe-form output { grid-column: auto; }
  .article-hero { padding-top: 45px; }
  .article-hero h1 { font-size: clamp(38px, 11vw, 54px); }
  .article-body { width: calc(100% - 22px); padding-top: 30px; }
  .article-content { font-size: 17px; }
  .comment.depth-1, .comment.depth-2 { margin-left: 10px; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* Human-readable site map */
.map-category-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 34px 0 72px;
}
.map-category {
  display: flex;
  min-height: 112px;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  padding: 22px;
  color: var(--ink);
  text-decoration: none;
  background: #fff;
  border: 1px solid rgba(19, 54, 98, .12);
  border-radius: 22px;
  box-shadow: 0 14px 32px rgba(35, 85, 135, .08);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.map-category:hover {
  transform: translateY(-3px);
  border-color: rgba(31, 130, 240, .35);
  box-shadow: 0 18px 38px rgba(35, 85, 135, .13);
}
.map-category strong { font-size: 1.05rem; }
.map-category span { color: var(--muted); font-size: .9rem; }
.service-button {
  display: inline-flex;
  margin-top: 18px;
  padding: 12px 18px;
  color: #fff;
  text-decoration: none;
  background: var(--blue);
  border-radius: 999px;
}
@media (max-width: 980px) { .map-category-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .map-category-grid { grid-template-columns: 1fr; } }