:root{--red:#8e090d;--deep:#510104;--gold:#ffd86b;--ink:#281719;--muted:#67575a;--line:#eadfd5}*{box-sizing:border-box}body{margin:0;background:#fffaf4;color:var(--ink);font:17px/1.65 Arial,"Microsoft YaHei",sans-serif}a{color:#8b090d;font-weight:700}.wrap{width:min(940px,calc(100% - 36px));margin:auto}.head{background:linear-gradient(100deg,#680305,#a80d11,#650305);color:#fff}.nav{min-height:78px;display:flex;gap:24px;align-items:center}.logo{width:110px;height:auto}.nav-links{margin-left:auto;display:flex;gap:18px;flex-wrap:wrap}.nav a{color:#fff;text-decoration:none}.hero{padding:62px 0 54px;background:radial-gradient(circle at 28% 10%,#ce2a20,var(--red) 48%,var(--deep));color:#fff}.crumb{color:#ffe2aa;font-size:.92rem}.crumb a{color:#ffe2aa}.hero h1{max-width:850px;margin:15px 0 12px;font-size:clamp(2.25rem,6vw,4.4rem);line-height:1.06;letter-spacing:-.04em}.hero p{max-width:700px;margin:0;color:#ffedc8;font-size:1.12rem}.content{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:54px;padding:52px 0 72px}.article h2{margin:40px 0 10px;line-height:1.2;font-size:1.75rem}.article h3{margin:25px 0 6px}.article p,.article li{color:var(--muted)}.answer{margin:26px 0;padding:22px 24px;border-left:6px solid var(--gold);border-radius:10px;background:#fff0c6;color:#542319;font-weight:700}.example{padding:22px;border:1px solid var(--line);border-radius:16px;background:#fff}.example strong{color:var(--red)}.toc{align-self:start;position:sticky;top:20px;padding:18px;border:1px solid var(--line);border-radius:14px;background:#fff}.toc strong{display:block;margin-bottom:8px}.toc a{display:block;padding:5px 0;font-size:.93rem}.cta{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:42px 0;padding:25px;border-radius:18px;background:linear-gradient(120deg,#760608,#a90e12);color:#fff}.cta h2,.cta p{margin:0}.cta p{color:#ffe6bb}.button{display:inline-block;white-space:nowrap;padding:12px 18px;border-radius:10px;background:#15b943;color:#fff;text-decoration:none}.related{margin-top:38px;padding-top:22px;border-top:1px solid var(--line)}.related ul{padding-left:18px}.foot{padding:30px 0;background:var(--deep);color:#fff;font-size:.92rem}.foot a{color:#ffe29a}@media(max-width:720px){.nav{padding:12px 0}.nav-links{gap:11px;font-size:.84rem}.content{grid-template-columns:1fr;padding-top:34px}.toc{display:none}.hero{padding:42px 0}.cta{display:block}.button{margin-top:16px}}
@import url('/site-header.css?v=1');