:root{--bg:#f6f7fb;--card:#fff;--text:#18202a;--muted:#667085;--brand:#1769e0;--dark:#0f172a;--border:#e7eaf0;--max:1120px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);line-height:1.65}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(92%,var(--max));margin:auto}
.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.nav{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.logo{font-size:1.35rem;font-weight:800;color:var(--brand)}
.menu{display:flex;gap:22px;align-items:center}.menu a:hover{color:var(--brand)}.menu-btn{display:none;border:0;background:transparent;font-size:1.7rem;cursor:pointer}
.hero{padding:72px 0;background:linear-gradient(135deg,#0f172a,#1769e0);color:#fff}.hero-inner{max-width:760px}.hero h1{font-size:clamp(2rem,5vw,4rem);line-height:1.08;margin:0 0 18px}.hero p{font-size:1.1rem;color:#e6efff;margin:0}
.section{padding:56px 0}.section-title{margin:0 0 28px;font-size:2rem}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:0 8px 28px rgba(15,23,42,.06);transition:.2s}.card:hover{transform:translateY(-4px)}
.card-image{aspect-ratio:16/9;object-fit:cover;width:100%;background:#dfe7f4}.card-body{padding:22px}.tag{display:inline-block;color:var(--brand);font-size:.82rem;font-weight:700;margin-bottom:8px}.card h2{font-size:1.25rem;line-height:1.3;margin:0 0 10px}.card p{color:var(--muted);margin:0 0 16px}.read-more{font-weight:700;color:var(--brand)}
.article-wrap{width:min(92%,820px);margin:auto}.article-header{padding:54px 0 26px}.article-header h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.12;margin:8px 0 16px}.meta{color:var(--muted)}
.article-cover{border-radius:18px;aspect-ratio:16/9;object-fit:cover;width:100%;margin:18px 0 34px}.article-content{background:#fff;padding:clamp(22px,5vw,52px);border-radius:18px;border:1px solid var(--border);font-size:1.08rem}.article-content h2{margin-top:36px;line-height:1.25}.article-content a{color:var(--brand);text-decoration:underline}.article-content blockquote{margin:28px 0;padding:18px 22px;border-left:4px solid var(--brand);background:#f3f7ff}
.cta{margin-top:34px;padding:24px;border-radius:14px;background:#eef5ff}.cta a{display:inline-block;margin-top:8px;padding:12px 18px;background:var(--brand);color:#fff;text-decoration:none;border-radius:10px;font-weight:700}
.footer{margin-top:60px;background:var(--dark);color:#cbd5e1;padding:34px 0}.footer-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
@media(max-width:850px){.grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.menu-btn{display:block}.menu{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;padding:18px 4%;border-bottom:1px solid var(--border);flex-direction:column;align-items:flex-start}.menu.open{display:flex}.grid{grid-template-columns:1fr}.hero{padding:52px 0}.section{padding:42px 0}}