:root {
    --portal-blue: #1459bf;
    --portal-blue-deep: #124ca5;
    --portal-blue-light: #2b78e8;
    --portal-ink: #172b45;
    --portal-body: #27384d;
    --portal-muted: #78889b;
    --portal-line: #dfe6ef;
    --portal-soft: #f4f7fb;
    --portal-paper: #fff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.lit-portal { margin: 0; color: var(--portal-body); background: #fff; font: 15px/1.65 "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif; }
a { color: inherit; }
a:focus-visible { outline: 3px solid #f4b740; outline-offset: 3px; }
.portal-topbar { position: relative; z-index: 2; min-height: 48px; background: #164ca5; color: #fff; }
.portal-topbar-inner { width: min(1500px, calc(100% - 48px)); min-height: 48px; margin: 0 auto; display: flex; align-items: center; gap: 30px; }
.portal-brand-small { display: inline-flex; flex: 0 0 auto; align-items: center; color: #fff; font-family: Georgia, "Songti SC", serif; font-size: 20px; text-decoration: none; }
.portal-brand-logo { display: block; width: 164px; height: 54px; border-radius: 2px; object-fit: cover; object-position: center; }
.portal-nav { display: flex; align-items: center; gap: 24px; min-width: 0; }
.portal-nav a { padding: 13px 0 11px; border-bottom: 2px solid transparent; color: rgba(255,255,255,.9); font-size: 13px; text-decoration: none; white-space: nowrap; }
.portal-nav a:hover, .portal-nav a.is-current { border-bottom-color: #fff; color: #fff; }
.portal-topbar-note { margin-left: auto; color: rgba(255,255,255,.7); font-size: 12px; white-space: nowrap; }

.portal-hero { position: relative; overflow: hidden; min-height: 415px; background: linear-gradient(118deg, #1556bd 0%, #1d69d9 52%, #1455b4 100%); color: #fff; }
.portal-hero::before { position: absolute; inset: 0; content: ""; opacity: .18; background-image: linear-gradient(125deg, transparent 0 18%, rgba(255,255,255,.22) 18.2% 20%, transparent 20.2% 38%, rgba(255,255,255,.16) 38.2% 41%, transparent 41.2% 70%, rgba(255,255,255,.18) 70.2% 72%, transparent 72.2%), radial-gradient(circle at 16% 56%, rgba(255,255,255,.24) 0 1px, transparent 2px); background-size: 100% 100%, 24px 24px; }
.hero-orbit { position: absolute; width: 420px; height: 420px; border: 1px solid rgba(255,255,255,.12); border-radius: 50%; pointer-events: none; }
.hero-orbit::before, .hero-orbit::after { position: absolute; inset: 42px; border: 1px solid rgba(255,255,255,.1); border-radius: 50%; content: ""; }
.hero-orbit::after { inset: 92px; }
.hero-orbit-one { top: -220px; right: 12%; }
.hero-orbit-two { bottom: -315px; left: 8%; transform: scale(1.2); }
.portal-hero-inner { position: relative; z-index: 1; width: min(1180px, calc(100% - 48px)); margin: 0 auto; padding: 29px 0 71px; text-align: center; }
.portal-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; text-align: left; text-decoration: none; }
.portal-logo-mark { display: grid; width: 46px; height: 46px; place-items: center; border: 1px solid rgba(255,255,255,.8); border-radius: 50%; }
.portal-logo-mark svg { width: 36px; stroke: currentColor; stroke-width: 1.4; }
.portal-logo strong { display: block; font-family: Georgia, "Songti SC", serif; font-size: 22px; letter-spacing: .04em; line-height: 1.15; }
.portal-logo small { display: block; margin-top: 3px; font-size: 9px; letter-spacing: .19em; opacity: .83; }
.hero-kicker { margin: 20px 0 2px; color: rgba(255,255,255,.8); font-size: 13px; letter-spacing: .18em; }
.portal-hero h1 { margin: 0; color: #fff; font-size: clamp(27px, 3.2vw, 38px); font-weight: 600; letter-spacing: .05em; line-height: 1.45; }
.hero-description { margin: 5px 0 20px; color: rgba(255,255,255,.84); font-size: 14px; }
.hero-search { display: flex; align-items: center; width: min(820px, 100%); min-height: 62px; margin: 0 auto; padding: 7px; border-radius: 4px; background: #fff; box-shadow: 0 8px 24px rgba(8,35,78,.2); color: var(--portal-ink); text-align: left; }
.search-kind { flex: 0 0 auto; padding: 0 18px; border-right: 1px solid #dce3ed; color: #344b67; font-size: 14px; }
.search-placeholder { flex: 1; padding: 0 17px; color: #9aa7b6; font-size: 14px; }
.search-button { display: inline-flex; flex: 0 0 auto; min-width: 88px; min-height: 46px; align-items: center; justify-content: center; gap: 6px; border-radius: 3px; background: #2868dd; color: #fff; font-size: 14px; }
.search-button svg { width: 17px; stroke: currentColor; stroke-width: 2; }
.hero-categories { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; width: min(900px, 100%); margin: 17px auto 0; }
.hero-categories a { min-width: 94px; padding: 5px 13px; border: 1px solid rgba(255,255,255,.25); border-radius: 3px; background: rgba(255,255,255,.12); color: #fff; font-size: 12px; text-decoration: none; transition: background .18s ease; }
.hero-categories a:hover { background: rgba(255,255,255,.23); }
.hero-categories a small { color: rgba(255,255,255,.72); font-size: 10px; }
.hero-wave { position: absolute; right: -4%; bottom: -34px; left: -4%; height: 65px; border-radius: 50% 50% 0 0 / 45% 45% 0 0; background: #fff; transform: rotate(-.6deg); }

.portal-content { width: min(1260px, calc(100% - 48px)); margin: 0 auto; padding: 10px 0 38px; }
.lit-ad-slot { min-width: 0; overflow: hidden; border-radius: 3px; color: inherit; font-size: 0; line-height: 0; text-align: center; }
.lit-ad-slot .sg-ad { display: inline-block; max-width: 100%; border-radius: 3px; vertical-align: top; }
.lit-ad-slot .sg-ad img, .lit-ad-slot .sg-ad iframe, .lit-ad-slot > iframe { display: block; max-width: 100%; border-radius: 3px; }
.lit-ad-slot .sg-ad img { height: auto; }
.lit-ad-home-dynamics, .lit-ad-home-companies { width: 100%; margin: 0 auto; }
.lit-ad-detail-sidebar { width: 100%; }
.portal-update-line { display: flex; align-items: center; gap: 12px; margin: 7px 0 23px; color: #2868dd; font-size: 12px; }
.portal-update-line i { flex: 1; border-top: 1px dashed #cdd7e4; }
.category-columns { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 25px; margin-bottom: 26px; }
.category-column { min-width: 0; padding: 0 12px 3px; }
.category-column-heading { display: flex; align-items: center; gap: 9px; margin-bottom: 8px; }
.category-symbol { display: grid; width: 27px; height: 27px; flex: 0 0 auto; place-items: center; border-radius: 6px; background: #e9f1ff; color: #357be3; }
.category-symbol-2 { background: #fff0eb; color: #d77a55; }
.category-symbol-3 { background: #e8f4ff; color: #4585ce; }
.category-symbol svg { width: 18px; stroke: currentColor; stroke-width: 1.7; }
.category-column-heading h2 { min-width: 0; margin: 0; overflow: hidden; color: #25374d; font-size: 16px; font-weight: 700; text-overflow: ellipsis; white-space: nowrap; }
.category-column-heading h2 a { text-decoration: none; }
.category-more { margin-left: auto; color: #7b8999; font-size: 12px; text-decoration: none; white-space: nowrap; }
.category-column ol { margin: 0; padding: 0; list-style: none; }
.category-column li { display: flex; align-items: baseline; gap: 10px; min-height: 29px; padding: 4px 0; }
.category-column li a { min-width: 0; overflow: hidden; color: #30445d; font-size: 13px; text-decoration: none; text-overflow: ellipsis; white-space: nowrap; }
.category-column li a:hover, .ranked-articles a:hover, .latest-articles a:hover { color: #1762cb; }
.category-column li time { flex: 0 0 auto; color: #93a0ae; font-size: 11px; }

.ranking-grid { display: grid; grid-template-columns: minmax(0, 1.8fr) minmax(280px, .9fr); gap: 16px; margin: 15px 0 32px; }
.ranking-panel { min-width: 0; padding: 20px 24px 18px; border-radius: 9px; background: #f4f7fc; }
.panel-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 15px; margin-bottom: 12px; }
.panel-kicker { margin: 0; color: #407de0; font-size: 10px; font-weight: 700; letter-spacing: .15em; }
.panel-heading h2, .recommendation-heading h2 { margin: 1px 0 0; color: #2367ce; font-size: 20px; font-weight: 700; line-height: 1.35; }
.panel-note { color: #92a0b0; font-size: 11px; }
.ranked-articles, .latest-articles { margin: 0; padding: 0; list-style: none; }
.ranked-articles li { display: grid; grid-template-columns: 22px minmax(0, 1fr) minmax(50px, 82px) minmax(70px, 130px) 82px; align-items: center; gap: 9px; min-height: 39px; border-bottom: 1px solid rgba(210,220,234,.62); }
.ranked-articles li:last-child, .latest-articles li:last-child { border-bottom: 0; }
.rank-number { color: #65788f; font-size: 12px; text-align: center; }
.rank-number.rank-top { color: #d19137; font-weight: 700; }
.ranked-articles a, .latest-articles a { min-width: 0; overflow: hidden; color: #273b53; font-size: 13px; text-decoration: none; text-overflow: ellipsis; white-space: nowrap; }
.rank-author, .rank-source, .ranked-articles time { overflow: hidden; color: #8391a1; font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.rank-source { text-align: center; }
.ranked-articles time { text-align: right; }
.latest-articles li { display: grid; grid-template-columns: 22px minmax(0, 1fr); align-items: center; gap: 8px; min-height: 39px; border-bottom: 1px solid rgba(210,220,234,.62); }
.latest-index { color: #6681a2; font-size: 12px; text-align: center; }
.featured-empty-fallback { display: grid; gap: 8px; padding: 16px 4px; color: var(--portal-muted); font-size: 13px; }
.featured-empty-fallback a { color: var(--portal-ink); text-decoration: none; }
.empty-note { margin: 0; padding: 20px 4px; color: #8795a5; font-size: 13px; }

.literature-board { margin: 0 0 30px; padding: 22px 24px 24px; background: #f3f7fc; }
.literature-board-heading, .literature-dynamics-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin: 0 3px 15px; }
.literature-board-heading h2, .literature-dynamics-heading h2 { margin: 1px 0 0; color: #2367ce; font-size: 20px; line-height: 1.35; }
.literature-board-heading > span, .literature-dynamics-heading > span { color: #7d8b9b; font-size: 12px; }
.literature-board-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.literature-list-panel { min-width: 0; padding: 15px 18px 12px; border: 1px solid #edf1f6; border-radius: 5px; background: #fff; }
.literature-list-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.literature-list-heading h3 { margin: 0; color: #263b55; font-size: 15px; font-weight: 700; }
.literature-list-heading span { color: #96a2b0; font-size: 11px; }
.literature-rows { margin: 0; padding: 0; list-style: none; }
.literature-rows li { display: grid; grid-template-columns: 56px minmax(0, 1fr); align-items: center; gap: 12px; min-height: 62px; border-bottom: 1px solid #edf1f5; }
.literature-rows li:last-child { border-bottom: 0; }
.literature-rows time { color: #3978d2; font-size: 11px; text-align: center; }
.literature-row-copy { min-width: 0; }
.literature-row-copy > a { display: block; overflow: hidden; color: #293d55; font-size: 13px; text-decoration: none; text-overflow: ellipsis; white-space: nowrap; }
.literature-row-copy > a:hover, .dynamics-list a:hover { color: #1762cb; }
.literature-row-copy p { overflow: hidden; margin: 3px 0 0; color: #8996a6; font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.literature-picks li { grid-template-columns: 22px minmax(0, 1fr); }
.literature-pick-rank { color: #75869a; font-size: 12px; text-align: center; }
.literature-pick-rank.is-top { color: #d08a34; font-weight: 700; }

.literature-dynamics { margin: 0 0 31px; padding: 22px 24px 24px; background: #fff; }
.literature-dynamics-heading { margin-bottom: 17px; }
.dynamics-layout { display: grid; grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr); gap: 28px; align-items: stretch; }
.dynamics-list { display: grid; grid-template-rows: repeat(5, minmax(0, 1fr)); margin: 0; padding: 0; list-style: none; }
.dynamics-list li { display: grid; grid-template-columns: 54px minmax(0, 1fr); gap: 12px; align-items: center; min-height: 67px; padding: 8px 10px; border-bottom: 1px solid #e7ebf0; background: #fafbfd; }
.dynamics-list li:last-child { border-bottom: 0; }
.dynamics-list time { padding: 4px 3px; color: #fff; background: #6795df; font-size: 11px; text-align: center; }
.dynamics-list li > div { min-width: 0; }
.dynamics-list a { display: block; overflow: hidden; color: #2b4059; font-size: 13px; text-decoration: none; text-overflow: ellipsis; white-space: nowrap; }
.dynamics-list p { overflow: hidden; margin: 3px 0 0; color: #8997a7; font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.dynamics-feature { min-width: 0; overflow: hidden; border: 1px solid #e3e9f0; background: #fff; }
.dynamics-image { position: relative; display: block; overflow: hidden; aspect-ratio: 1.9 / 1; background: #e6eff9; text-decoration: none; }
.dynamics-image img { display: block; width: 100%; height: 100%; object-fit: cover; }
.dynamics-image .placeholder-blueprint { background-color: #dceafa; background-image: linear-gradient(rgba(255,255,255,.28) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.28) 1px, transparent 1px), linear-gradient(135deg, #c6ddf5, #8bb5e9); background-size: 24px 24px, 24px 24px, 100% 100%; color: #386da9; }
.dynamics-image .placeholder-blueprint svg { width: 28%; }
.dynamics-image-label { position: absolute; right: 0; bottom: 0; left: 0; padding: 10px 14px; color: #fff; background: linear-gradient(transparent, rgba(13,43,83,.72)); font-size: 12px; letter-spacing: .08em; }
.dynamics-feature-copy { padding: 12px 15px 14px; }
.dynamics-feature-copy > span { color: #8795a5; font-size: 11px; }
.dynamics-feature-copy h3 { margin: 4px 0; color: #2a3d53; font-size: 15px; line-height: 1.5; }
.dynamics-feature-copy h3 a { color: inherit; text-decoration: none; }
.dynamics-feature-copy h3 a:hover { color: #1762cb; }
.dynamics-feature-copy p { display: -webkit-box; overflow: hidden; margin: 0; color: #78889b; font-size: 12px; line-height: 1.6; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.dynamics-empty { display: grid; min-height: 205px; place-content: center; justify-items: center; border: 1px dashed #d8e2ee; background: #f8fafd; color: #8493a5; text-align: center; }
.dynamics-empty-icon { color: #6d98cf; font-size: 30px; }
.dynamics-empty p { margin: 5px 12px; font-size: 13px; }

.recommendation-section { margin: 0 0 28px; padding: 22px 24px 26px; background: #f4f7fc; }
.recommendation-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin: 0 4px 17px; }
.recommendation-heading > p { margin: 0; color: #7d8b9b; font-size: 12px; }
.recommendation-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.recommendation-card { min-width: 0; overflow: hidden; border: 1px solid #e1e7ef; background: #fff; }
.recommendation-image { position: relative; display: block; overflow: hidden; aspect-ratio: 1.68 / 1; background: #e9f0f8; }
.recommendation-image img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .25s ease; }
.recommendation-image:hover img { transform: scale(1.03); }
.image-placeholder { display: grid; place-items: center; background: linear-gradient(135deg, #dfeaf7, #cbdcf0 54%, #e8eff8); }
.placeholder-blueprint { display: grid; width: 100%; height: 100%; place-items: center; background-image: linear-gradient(rgba(255,255,255,.22) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.22) 1px, transparent 1px); background-size: 22px 22px; color: #547da8; }
.placeholder-blueprint svg { width: 42%; max-height: 76%; stroke: currentColor; stroke-width: 1.25; }
.placeholder-caption { position: absolute; right: 10px; bottom: 7px; color: rgba(39,67,99,.58); font-size: 8px; letter-spacing: .16em; }
.recommendation-copy { padding: 11px 13px 14px; }
.recommendation-meta { display: flex; justify-content: space-between; gap: 8px; margin: 0 0 5px; color: #8795a5; font-size: 11px; }
.recommendation-meta span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.recommendation-copy h3 { display: -webkit-box; overflow: hidden; margin: 0; color: #2a3d53; font-size: 14px; font-weight: 600; line-height: 1.55; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.recommendation-copy h3 a { color: inherit; text-decoration: none; }
.recommendation-copy h3 a:hover { color: #1762cb; }
.recommendation-summary { display: -webkit-box; overflow: hidden; margin: 6px 0 0; color: #778697; font-size: 12px; line-height: 1.55; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.company-recommendation-section { margin: 0 0 28px; padding: 22px 24px 24px; border: 1px solid #e4eaf2; background: #fff; }
.company-recommendation-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin: 0 2px 16px; }
.company-recommendation-heading h2 { margin: 3px 0 0; color: #263d58; font-size: 21px; font-weight: 650; }
.company-recommendation-heading > a { color: #326db8; font-size: 12px; text-decoration: none; white-space: nowrap; }
.company-recommendation-heading > a:hover { color: #1557a8; }
.company-recommendation-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px; }
.company-recommendation-card { display: flex; min-width: 0; align-items: center; gap: 12px; padding: 13px; border: 1px solid #e8edf3; background: #fbfcfe; }
.company-recommendation-mark { display: grid; width: 43px; height: 43px; flex: 0 0 auto; place-items: center; border: 1px solid #d9e6f5; background: linear-gradient(145deg, #eef5fd, #dce9f8); color: #3973b7; font-size: 18px; font-weight: 650; text-decoration: none; }
.company-recommendation-copy { min-width: 0; flex: 1; }
.company-recommendation-copy > span { display: block; margin-bottom: 3px; color: #6f8eb2; font-size: 10px; }
.company-recommendation-copy h3 { overflow: hidden; margin: 0; color: #2c4159; font-size: 13px; font-weight: 600; text-overflow: ellipsis; white-space: nowrap; }
.company-recommendation-copy h3 a { color: inherit; text-decoration: none; }
.company-recommendation-copy h3 a:hover { color: #1762cb; }
.company-recommendation-copy p { display: -webkit-box; overflow: hidden; margin: 4px 0 0; color: #7d8b9a; font-size: 11px; line-height: 1.55; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.company-recommendation-link { color: #7190b3; font-size: 18px; text-decoration: none; }
.company-recommendation-link:hover { color: #1762cb; }
.company-recommendation-empty { margin: 0; padding: 14px; border: 1px dashed #dce5ef; background: #fafbfd; color: #8190a1; font-size: 12px; }
.yellow-page-entry { display: flex; align-items: center; gap: 14px; padding: 18px 22px; border: 1px solid #e1e7ef; background: #fff; }
.yellow-page-mark { display: grid; width: 38px; height: 38px; flex: 0 0 auto; place-items: center; border-radius: 50%; background: #eef4fc; color: #3a73bc; }
.yellow-page-mark svg { width: 22px; stroke: currentColor; stroke-width: 1.6; }
.yellow-page-entry strong { color: #344a64; font-size: 14px; }
.yellow-page-entry p { margin: 1px 0 0; color: #8593a3; font-size: 12px; }
.yellow-page-entry > a { margin-left: auto; color: #326db8; font-size: 13px; text-decoration: none; white-space: nowrap; }
.literature-friend-links { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0 20px; margin-top: 20px; padding: 0; border: 0; background: transparent; }
.literature-friend-links h2 { flex: none; margin: 0; color: var(--portal-ink); font-size: 14px; font-weight: 600; line-height: 44px; }
.literature-friend-links ul { display: flex; flex: 1 1 240px; min-width: 0; flex-wrap: wrap; gap: 0 20px; margin: 0; padding: 0; list-style: none; }
.literature-friend-links li { min-width: 0; max-width: 100%; }
.literature-friend-links a { display: inline-flex; align-items: center; min-height: 44px; max-width: 100%; color: #52657c; font-size: 14px; text-decoration: none; overflow-wrap: anywhere; }
.literature-friend-links a:hover { color: var(--portal-blue); text-decoration: underline; }
.literature-friend-links-empty { margin: 0; color: #52657c; font-size: 14px; line-height: 44px; }
.portal-footer { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px 20px; padding: 24px; border-top: 1px solid #e3e8ef; color: #8492a1; background: #f7f9fb; font-size: 12px; }
.portal-footer a { color: #526d8d; font-weight: 600; text-decoration: none; }
.literature-footer { margin-top: 38px; padding: 34px max(24px, calc((100% - 1180px) / 2)) 0; color: #c1d0e0; background: #173958; }
.literature-footer-main { display: grid; grid-template-columns: minmax(0,1.25fr) minmax(150px,.7fr) minmax(0,1fr); gap: 45px; padding-bottom: 26px; }
.literature-footer-brand > a { color: #fff; font-family: Georgia,"Songti SC",serif; font-size: 21px; font-weight: 600; text-decoration: none; }
.literature-footer-brand p { max-width: 360px; margin: 8px 0 0; color: #bdcddd; font-size: 12px; line-height: 1.8; }
.literature-footer-links, .literature-footer-contact { display: grid; align-content: start; justify-items: start; gap: 8px; }
.literature-footer-links > strong, .literature-footer-contact > strong { margin-bottom: 3px; color: #fff; font-size: 13px; }
.literature-footer-links a, .literature-footer-contact a, .literature-footer-contact span { color: #bdcddd; font-size: 11px; line-height: 1.7; text-decoration: none; }
.literature-footer-links a:hover, .literature-footer-contact a:hover { color: #fff; }
.literature-footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 20px; padding: 13px 0 15px; border-top: 1px solid rgba(255,255,255,.16); color: #aebfd1; font-size: 10px; }
.literature-footer-bottom a { color: inherit; text-decoration: none; }
.literature-footer-bottom a:hover { color: #fff; text-decoration: underline; }

@media (max-width: 1050px) {
    .portal-topbar-inner { gap: 20px; }
    .portal-nav { gap: 15px; }
    .portal-topbar-note { display: none; }
    .portal-content { width: min(100% - 36px, 900px); }
    .category-columns { gap: 12px; }
    .ranked-articles li { grid-template-columns: 22px minmax(0, 1fr) 75px 82px; }
    .rank-source { display: none; }
    .dynamics-layout { gap: 16px; }
    .literature-rows li { grid-template-columns: 48px minmax(0, 1fr); gap: 8px; }
    .recommendation-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .company-recommendation-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
    .portal-topbar-inner { width: calc(100% - 32px); align-items: flex-start; flex-direction: column; gap: 0; padding: 8px 0 10px; }
    .portal-brand-small { font-size: 18px; }
    .portal-nav { width: 100%; overflow-x: auto; gap: 18px; scrollbar-width: thin; }
    .portal-nav a { padding: 8px 0 6px; }
    .portal-hero { min-height: auto; }
    .portal-hero-inner { width: calc(100% - 32px); padding: 24px 0 57px; }
    .portal-logo-mark { width: 40px; height: 40px; }
    .portal-logo strong { font-size: 19px; }
    .hero-kicker { margin-top: 17px; font-size: 11px; }
    .portal-hero h1 { font-size: clamp(24px, 6vw, 32px); letter-spacing: .02em; }
    .hero-description { max-width: 31em; margin: 7px auto 17px; font-size: 13px; }
    .hero-search { min-height: 54px; }
    .search-kind { padding: 0 11px; font-size: 13px; }
    .search-placeholder { padding: 0 10px; font-size: 12px; }
    .search-button { min-width: 70px; min-height: 40px; font-size: 12px; }
    .hero-categories { gap: 6px; margin-top: 13px; }
    .hero-categories a { min-width: auto; padding: 4px 10px; font-size: 11px; }
    .portal-content { width: calc(100% - 32px); padding-top: 7px; }
    .portal-update-line { margin: 5px 0 15px; }
    .category-columns { grid-template-columns: 1fr; gap: 10px; }
    .category-column { padding: 10px 4px; border-bottom: 1px solid #edf1f5; }
    .category-column li { min-height: 27px; }
    .ranking-grid { grid-template-columns: 1fr; gap: 12px; margin: 10px 0 23px; }
    .ranking-panel { padding: 17px 16px; }
    .ranked-articles li { grid-template-columns: 22px minmax(0, 1fr) 74px; gap: 7px; min-height: 42px; }
    .rank-author { display: none; }
    .ranked-articles time { font-size: 10px; }
    .literature-board, .literature-dynamics { padding: 18px 14px; }
    .literature-board-grid, .dynamics-layout { grid-template-columns: 1fr; }
    .literature-list-panel { padding: 12px; }
    .literature-rows li { min-height: 58px; }
    .dynamics-list li { min-height: 62px; }
    .dynamics-image { aspect-ratio: 1.75 / 1; }
    .recommendation-section { padding: 18px 14px; }
    .literature-footer-main { grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 25px 30px; }
    .literature-footer-brand { grid-column: 1 / -1; }
    .company-recommendation-section { padding: 18px 14px; }
    .company-recommendation-heading h2 { font-size: 19px; }
    .recommendation-heading h2 { font-size: 19px; }
    .recommendation-grid { gap: 10px; }
    .recommendation-copy { padding: 9px 10px 11px; }
    .recommendation-copy h3 { font-size: 13px; }
}
@media (max-width: 430px) {
    .portal-content { width: calc(100% - 24px); }
    .portal-hero-inner { width: calc(100% - 24px); }
    .hero-search { padding: 5px; }
    .search-kind { padding: 0 8px; }
    .search-placeholder { padding: 0 7px; font-size: 11px; }
    .search-button { min-width: 58px; gap: 3px; }
    .search-button svg { width: 14px; }
    .recommendation-grid { grid-template-columns: 1fr 1fr; }
    .recommendation-meta { font-size: 10px; }
    .yellow-page-entry { gap: 9px; padding: 14px 12px; }
    .yellow-page-entry > a { font-size: 12px; }
    .literature-footer { margin-top: 30px; padding: 26px 16px 0; }
    .literature-footer-main { grid-template-columns: 1fr; gap: 22px; }
    .literature-footer-brand { grid-column: auto; }
    .literature-footer-bottom { flex-direction: column; gap: 5px; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}