:root{--bg:#f5fbff;--ink:#183249;--muted:#597082;--line:#d6e7f2;--card:#fff;--brand:#1f79c6;--brand2:#2a9d8f;--soft:#eef8ff;--soft2:#f3fbf7;--shadow:0 22px 44px rgba(13,39,58,.11);--shadow2:0 10px 24px rgba(13,39,58,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);line-height:1.68;background:linear-gradient(180deg,#f8fcff 0,#f4f9fd 100%)}
a{color:var(--brand);text-decoration:none}img{max-width:100%;display:block}.wrap{width:min(1280px,calc(100% - 32px));margin:0 auto}.narrow{width:min(920px,calc(100% - 32px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(214,231,242,.95)}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-weight:800}.brand img{width:46px;height:46px;border-radius:16px;box-shadow:var(--shadow2)}
.main-nav{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.main-nav a{padding:9px 12px;border-radius:999px;color:var(--ink);font-size:14px}.main-nav a:hover,.main-nav a.active{background:var(--soft)}
.language-switch{display:flex;gap:8px;flex-wrap:wrap;padding:0 0 14px}.language-switch a{font-size:13px;background:#fff;border:1px solid var(--line);padding:6px 10px;border-radius:999px;color:var(--muted);box-shadow:var(--shadow2)}
.hero{padding:58px 0;background:radial-gradient(circle at top left,#e8f6ff 0,#f8fcff 52%,#eef8f3 100%)}.hero.hero-inner{padding-top:40px;padding-bottom:40px}.hero-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:28px;align-items:center}
.eyebrow{display:inline-block;padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);box-shadow:var(--shadow2)}
h1{font-size:clamp(34px,5vw,64px);line-height:1.02;margin:14px 0 18px}.lead{font-size:20px;color:var(--muted);max-width:68ch}.hero-art img{border-radius:32px;border:1px solid rgba(255,255,255,.88);box-shadow:var(--shadow);aspect-ratio:16/10;object-fit:cover;width:100%}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.button{display:inline-flex;align-items:center;justify-content:center;padding:14px 18px;border-radius:14px;font-weight:700;background:var(--brand);color:#fff;box-shadow:var(--shadow)}.button.secondary{background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:none}
.section{padding:48px 0}.section.alt{background:#fbfeff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}h2{font-size:clamp(28px,3vw,42px);line-height:1.08;margin:0 0 18px}h3{line-height:1.14;margin:0}
.grid{display:grid;gap:18px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.grid.auto{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card,.stat,.mini-card,.faq-item,.toc,.note,.spotlight,.table-wrap,.feature{background:var(--card);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}
.card{display:flex;flex-direction:column;gap:14px;padding:16px;color:var(--ink);overflow:hidden;min-height:100%}.card h3{font-size:22px}.card p{margin:0;color:var(--muted)}.card .meta{font-size:13px;color:var(--muted)}
.card img{aspect-ratio:16/10;object-fit:cover;border-radius:18px;border:1px solid var(--line);background:#fff}.card.compact{padding:14px;border-radius:20px}.card.compact h3{font-size:18px}.card.compact img{aspect-ratio:4/3}.card:hover{transform:translateY(-3px);transition:.2s ease}
.stat{padding:18px}.stat strong{display:block;font-size:38px;line-height:1}.stat span{display:block;margin-top:8px;color:var(--muted)}
.columns{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:start}.copy p{margin:0 0 14px}.pill-row{display:flex;gap:10px;flex-wrap:wrap}.pill{background:#fff;border:1px solid var(--line);padding:9px 12px;border-radius:999px;color:var(--muted);font-size:14px;box-shadow:var(--shadow2)}
.note,.faq-item,.toc,.spotlight,.table-wrap,.feature{padding:18px 20px}.note{border-left:6px solid var(--brand2)}.spotlight{display:grid;grid-template-columns:1.05fr .95fr;gap:20px;align-items:center}.spotlight img,.feature img{border-radius:20px;border:1px solid var(--line);aspect-ratio:16/10;object-fit:cover}
.gallery{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px}.gallery img{border-radius:18px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow2);aspect-ratio:1/1;object-fit:cover}
.table-lite{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}.table-lite th,.table-lite td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}.table-lite th{background:#f5fbff}
.breadcrumbs{font-size:14px;color:var(--muted);margin-bottom:14px}.breadcrumbs a{color:var(--muted)}.faq-stack{display:grid;gap:14px}.faq-item strong{display:block;margin-bottom:8px}.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.mosaic{display:grid;grid-template-columns:1.3fr .7fr;gap:18px}.mosaic .side{display:grid;gap:18px}.mosaic img{border-radius:20px;border:1px solid var(--line);box-shadow:var(--shadow2);aspect-ratio:16/10;object-fit:cover}
.kicker{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.cluster-list{columns:2;gap:28px}.cluster-list a{display:block;padding:6px 0}.site-footer{padding:36px 0 56px;background:#102a3f;color:#d6ebf9;margin-top:44px}.site-footer a{display:block;color:#d6ebf9;margin-bottom:8px}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}
.search-box{display:flex;gap:12px;align-items:center;background:#fff;border:1px solid var(--line);padding:10px 12px;border-radius:16px;box-shadow:var(--shadow2)}.search-box input{border:0;outline:none;flex:1;font-size:15px;color:var(--ink)}.feature{display:grid;grid-template-columns:.9fr 1.1fr;gap:18px;align-items:center}.small{font-size:14px;color:var(--muted)}
@media (max-width: 1120px){.hero-grid,.columns,.spotlight,.mosaic,.footer-grid,.feature,.grid.four,.grid.three,.grid.two{grid-template-columns:1fr}.gallery{grid-template-columns:repeat(3,minmax(0,1fr))}.main-nav{display:none}.cluster-list{columns:1}}
@media (max-width: 680px){.gallery{grid-template-columns:repeat(2,minmax(0,1fr))}h1{font-size:34px}.lead{font-size:17px}}