:root{--orange:#ff6900;--ink:#171717;--muted:#666;--bg:#f6f7f8;--card:#fff;--line:#e7e7e7}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Tahoma,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.9}a{color:#b94a00;text-decoration:none}a:hover{text-decoration:underline}.wrap{width:min(1080px,calc(100% - 32px));margin:auto}.top{background:#111;color:#fff}.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 0}.brand{font-weight:800;font-size:22px}.brand b{color:var(--orange)}.nav{display:flex;gap:18px;flex-wrap:wrap}.nav a{color:#eee;font-size:14px}.hero{padding:70px 0 38px;background:linear-gradient(180deg,#fff,#f6f7f8)}.hero h1{font-size:42px;line-height:1.35;margin:0 0 14px}.lead{font-size:18px;color:#444;max-width:780px}.pill{display:inline-block;background:#fff3eb;color:#a33f00;border:1px solid #ffd6bd;border-radius:999px;padding:5px 11px;font-size:13px;margin-bottom:14px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:28px 0 48px}.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 8px 28px rgba(0,0,0,.04)}.card h2,.card h3{margin-top:0}.article{background:#fff;border:1px solid var(--line);border-radius:20px;padding:32px;margin:30px auto 60px}.article h2{margin-top:34px}.note{border-right:4px solid var(--orange);background:#fff8f3;padding:14px 16px;border-radius:10px;margin:22px 0}.source{font-size:14px;color:var(--muted)}footer{border-top:1px solid var(--line);background:#fff;padding:28px 0;color:#666;font-size:14px}.heroimg{width:100%;border-radius:18px;margin:18px 0 8px;display:block}@media(max-width:760px){.top .wrap{align-items:flex-start;flex-direction:column}.hero{padding-top:42px}.hero h1{font-size:31px}.grid{grid-template-columns:1fr}.article{padding:22px}.nav{gap:12px}}