:root{--blue:#0e3355;--ink:#0b1b2c;--gold:#ddb34a;--text:#2e3b4d;--muted:#5b6a7a;--bg:#f7f9fc;--card:#ffffff}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:var(--bg)}
img{max-width:100%;display:block}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
.header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid #e8eef5}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:700}
.brand img{height:34px}
.nav a{color:var(--ink);text-decoration:none;margin:0 10px;font-weight:600}
.nav .btn{margin-left:8px}
.btn{display:inline-block;padding:10px 14px;border-radius:10px;background:var(--gold);color:var(--ink);text-decoration:none;font-weight:700;box-shadow:0 6px 16px rgba(221,179,74,.25);transition:transform .15s ease,opacity .15s ease}
.btn:hover{transform:translateY(-1px);opacity:.9}
.hero{background:linear-gradient(180deg,#0b2742 0%, #0e3355 100%);color:#fff;padding:72px 0 64px;text-align:center}
.hero h1{font-size:clamp(30px,4.6vw,52px);margin:0 0 10px}
.hero p{font-size:clamp(16px,2.2vw,20px);opacity:.9;max-width:820px;margin:0 auto 18px}
.section{padding:56px 0}
.card{background:var(--card);border-radius:14px;overflow:hidden;box-shadow:0 10px 30px rgba(10,30,50,.08)}
.grid-2{display:grid;grid-template-columns:1.2fr .8fr;gap:28px}
@media(max-width:900px){.grid-2{grid-template-columns:1fr;}}
.hero-pda{position:relative;min-height:56vh;background:url('../img/pda-hero.jpg') center/cover no-repeat}
.hero-pda::before{content:'';position:absolute;inset:0;background:rgba(5,23,45,.45)}
.hero-pda .inner{position:relative;z-index:1;display:flex;align-items:center;min-height:56vh}
.hero-pda h1{color:#fff;font-size:clamp(30px,4.8vw,54px);margin:0 0 10px}
.hero-pda p{color:#fff;opacity:.95;font-size:clamp(16px,2.2vw,20px);max-width:820px}
.pda-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
@media(max-width:900px){.pda-grid{grid-template-columns:1fr;}}
.pda-grid figure{margin:0;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 8px 24px rgba(0,0,0,.06)}
.pda-grid figcaption{padding:12px 16px;color:var(--muted);font-size:14px}
.footer{padding:40px 0;text-align:center;color:var(--muted)}