:root{--navy:#0f2a44;--blue:#1b6ca8;--light:#f4f8fb;--green:#1f9d63;--text:#1d2939;--muted:#667085;--line:#d9e2ec;--white:#fff}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:#fff;line-height:1.65}
.topbar{position:sticky;top:0;background:linear-gradient(180deg,rgba(255,255,255,.98),rgba(247,251,255,.94));border-bottom:1px solid rgba(27,108,168,.18);box-shadow:0 14px 34px rgba(15,42,68,.12);backdrop-filter:blur(14px);z-index:5;isolation:isolate}
.topbar:before{content:"";position:absolute;left:0;right:0;top:0;height:5px;background:linear-gradient(90deg,#7043b5 0%,#1b6ca8 38%,#20c8d8 68%,#1f9d63 100%)}
.wrap{max-width:1120px;margin:auto;padding:0 20px}
.topbar .wrap{max-width:1280px}
.navrow{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:88px;padding-top:5px;position:relative}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--navy);font-weight:800;font-size:22px;padding:8px 13px 8px 8px;border:1px solid rgba(27,108,168,.14);border-radius:18px;background:rgba(255,255,255,.76);box-shadow:0 10px 28px rgba(15,42,68,.08)}
.mark{display:inline-flex;align-items:center;justify-content:center;width:50px;height:50px;border-radius:14px;overflow:hidden;background:transparent;flex:0 0 50px;box-shadow:0 8px 20px rgba(27,108,168,.24),0 0 0 3px rgba(32,200,216,.14)}
.mark img{width:100%;height:100%;object-fit:cover;display:block}
.nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;padding:7px;border:1px solid rgba(27,108,168,.13);border-radius:999px;background:rgba(244,248,251,.82);box-shadow:inset 0 1px 0 rgba(255,255,255,.92),0 10px 26px rgba(15,42,68,.07)}
.nav a{color:var(--text);text-decoration:none;font-weight:700;font-size:14px;padding:9px 12px;border-radius:999px;transition:background .2s,color .2s,box-shadow .2s,transform .2s}
.nav a:hover{color:white;background:linear-gradient(135deg,var(--navy),var(--blue));box-shadow:0 8px 18px rgba(27,108,168,.24);transform:translateY(-1px)}
.langs{display:inline-flex;gap:6px;vertical-align:middle;margin-right:8px}
.langs a{border:1px solid rgba(27,108,168,.14);padding:9px 11px;border-radius:12px;text-decoration:none;color:var(--navy);font-size:13px;font-weight:800;background:white;box-shadow:0 6px 16px rgba(15,42,68,.07);transition:background .2s,color .2s,border-color .2s,transform .2s}
.langs a:hover{color:white;background:var(--navy);border-color:var(--navy);transform:translateY(-1px)}
.btn{display:inline-block;padding:11px 17px;border-radius:14px;text-decoration:none;font-weight:800;border:1px solid var(--blue);transition:background .2s,color .2s,box-shadow .2s,transform .2s}
.btn.ghost{color:white;background:linear-gradient(135deg,var(--blue),#20c8d8);border-color:transparent;box-shadow:0 10px 24px rgba(27,108,168,.28)}
.btn.ghost:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(27,108,168,.34)}
.btn.primary{background:var(--blue);color:white}
.article-hero{background:linear-gradient(135deg,#0f2a44 0%,#1b6ca8 100%);color:white;padding:58px 0}
.article-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center}
.article-hero h1{font-size:42px;line-height:1.12;margin:12px 0 16px}
.article-hero p{font-size:18px;max-width:720px;color:#eaf4fb;margin:0}
.back{color:#dff8ff;text-decoration:none;font-weight:800;font-size:14px}
.hero-image{width:100%;border-radius:16px;box-shadow:0 24px 60px rgba(0,0,0,.28);display:block;background:white}
.section{padding:52px 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:30px;align-items:start}
.article{max-width:760px}
h2{font-size:28px;line-height:1.2;margin:0 0 14px;color:var(--navy)}
h3{margin:0 0 10px;color:var(--navy)}
p{margin:0 0 16px}
.list{padding-left:20px;margin:0 0 18px}
.list li{margin:8px 0}
.side-card,.notice{border:1px solid var(--line);border-radius:12px;background:#fff;padding:20px;box-shadow:0 8px 22px rgba(15,42,68,.06)}
.side-card{position:sticky;top:92px}
.notice{border-left:5px solid var(--green);background:#ecfdf3;margin:24px 0}
.footer{background:var(--navy);color:white;padding:30px 0;margin-top:30px}
.footer a{color:white}
.small{color:var(--muted);font-size:14px}
@media(max-width:900px){.navrow{align-items:flex-start;flex-direction:column;padding:18px 0 14px}.brand{font-size:19px}.nav{gap:6px;border-radius:16px;width:100%;padding:8px}.nav a{padding:8px 10px}.article-hero-grid,.article-layout{grid-template-columns:1fr}.article-hero h1{font-size:34px}.section{padding:38px 0}.langs{margin-bottom:8px}.side-card{position:static}}