:root{--bg:#e5ebef;--surface:#f7f9fa;--photo-bg:#303941;--text:#26333b;--muted:#687780;--accent:#415d6b;--line:#cbd5da;--max:1180px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,Helvetica,sans-serif;line-height:1.65}
a{color:var(--accent);text-decoration:none} a:hover{text-decoration:underline}
.site-header{position:sticky;top:0;z-index:10;background:rgba(247,249,250,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{max-width:var(--max);margin:0 auto;min-height:72px;padding:0 22px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{color:var(--text);font-size:1.25rem;font-weight:700;letter-spacing:.02em}.brand:hover{text-decoration:none}
.site-nav{display:flex;align-items:center;gap:26px}.site-nav a{color:var(--text);font-size:.96rem}.site-nav a:hover,.site-nav a.active{color:var(--accent);text-decoration:none}
main{max-width:var(--max);margin:0 auto;padding:64px 22px 80px}
.hero{max-width:820px;margin:0 auto 70px;text-align:center}.hero h1{margin:0 0 12px;font-size:clamp(2.2rem,5vw,4rem);line-height:1.05;letter-spacing:-.035em}.hero p{margin:0 auto;max-width:680px;color:var(--muted);font-size:1.08rem}
.section-title{margin:0 0 22px;font-size:1.55rem}
.categories{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.category{min-height:260px;padding:30px;display:flex;flex-direction:column;justify-content:flex-end;background:var(--photo-bg);border:1px solid #46515a;border-radius:10px;color:#fff;box-shadow:0 8px 24px rgba(30,40,46,.12);transition:transform .15s ease}
.category h2{margin:0 0 8px;font-size:1.45rem}.category p{margin:0;color:#d4dce0;font-size:.95rem}.category:hover{text-decoration:none;transform:translateY(-2px)}
.intro{margin:48px auto 0;max-width:850px;padding:28px 30px;background:var(--surface);border:1px solid var(--line);border-radius:10px}
.page-title{margin:0 0 12px;font-size:clamp(2rem,4vw,3rem);line-height:1.1}.page-lead{color:var(--muted);max-width:760px}
.photo-area{margin-top:36px;padding:60px 24px;background:var(--photo-bg);border-radius:10px;color:#dbe2e6;text-align:center}
.site-footer{border-top:1px solid var(--line);padding:28px 22px 40px;color:var(--muted);text-align:center;font-size:.9rem}
@media (max-width:760px){.header-inner{min-height:64px;flex-direction:column;justify-content:center;gap:6px;padding:12px 18px}.site-nav{gap:18px;flex-wrap:wrap;justify-content:center}main{padding:44px 18px 60px}.hero{margin-bottom:48px}.categories{grid-template-columns:1fr}.category{min-height:190px}}