:root{--orange:#ff5a12;--yellow:#ffd62f;--ink:#111827;--muted:#667085;--line:#e6e6e6;--bg:#f7f7f7;--dark:#171717}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--bg)}a{color:inherit;text-decoration:none}.container{width:min(1180px,calc(100% - 32px));margin:auto}.topbar{background:#171717;color:#fff;font-size:13px}.topbar .container{min-height:36px;display:flex;align-items:center;gap:24px}.topbar a{color:#fff}.mast{background:#fff;border-bottom:1px solid #e5e5e5}.mast .container{min-height:86px;display:flex;align-items:center;justify-content:space-between;gap:24px}.content-brand{font-size:38px;font-weight:900;letter-spacing:-1.8px}.content-brand span{color:var(--orange)}.content-tagline{font-size:12px;color:#555}.back-home{display:inline-flex;align-items:center;gap:8px;padding:12px 16px;background:var(--orange);color:#fff;font-weight:800;border-radius:6px}.content-nav{background:#fff;border-bottom:1px solid #e5e5e5}.content-nav .container{min-height:50px;display:flex;align-items:center;gap:28px;font-weight:700;font-size:14px}.content-nav a:hover{color:var(--orange)}.article-wrap{padding:34px 0 60px}.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:26px;align-items:start}.article-card,.side-card{background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 3px 12px rgba(0,0,0,.04)}.article-card{padding:34px}.breadcrumb{font-size:13px;color:#747474;margin-bottom:20px}.breadcrumb a{color:var(--orange)}.article-kicker{display:inline-block;color:var(--orange);font-size:13px;font-weight:900;letter-spacing:.8px;text-transform:uppercase}.article-card h1{font-size:46px;line-height:1.04;letter-spacing:-1.8px;margin:10px 0 16px}.lead{font-size:19px;line-height:1.55;color:#4b5563;margin-bottom:22px}.article-meta{display:flex;flex-wrap:wrap;gap:10px 20px;color:#7a7a7a;font-size:13px;border-top:1px solid #eee;border-bottom:1px solid #eee;padding:12px 0;margin-bottom:26px}.article-card h2{font-size:30px;line-height:1.15;margin:34px 0 12px}.article-card h3{font-size:22px;margin:26px 0 8px}.article-card p,.article-card li{font-size:17px;line-height:1.7;color:#333}.article-card ul{padding-left:22px}.tip{background:#fff8ef;border-left:5px solid var(--orange);padding:16px 18px;margin:22px 0;border-radius:4px}.affiliate-note{background:#f8fafc;border:1px solid #e5e7eb;padding:14px 16px;border-radius:6px;color:#555;font-size:14px;line-height:1.5}.item-block{border-top:1px solid #ededed;padding-top:8px;margin-top:22px}.cta-box{margin-top:34px;background:linear-gradient(135deg,#ff5a12,#ff8a00);color:#fff;padding:24px;border-radius:8px}.cta-box h3{margin:0 0 8px;color:#fff}.cta-box p{color:#fff;margin:0 0 16px}.cta-box a{display:inline-block;background:#171717;padding:12px 17px;border-radius:5px;font-weight:800}.sidebar{display:grid;gap:18px}.side-card{padding:20px}.side-card h3{margin:0 0 14px;font-size:20px}.side-list{display:grid;gap:12px}.side-list a{padding-bottom:12px;border-bottom:1px solid #eee;font-weight:700;line-height:1.35}.side-list a:last-child{border:0}.side-list a:hover{color:var(--orange)}.guide-index{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:24px}.guide-index-card{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}.guide-index-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#edf3ff}.guide-index-card div{padding:18px}.guide-index-card h2{font-size:21px;margin:0 0 8px}.guide-index-card p{font-size:14px;color:#666;line-height:1.5}.guide-index-card a{color:var(--orange);font-weight:800}.simple-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:34px}.simple-card h1{font-size:42px;margin:0 0 16px}.simple-card h2{font-size:26px;margin-top:30px}.simple-card p,.simple-card li{font-size:17px;line-height:1.7;color:#383838}.footer{background:#171717;color:#ddd;padding:32px 0;margin-top:40px}.footer .container{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer a{color:#fff;margin-right:18px}.footer small{color:#aaa}@media(max-width:900px){.article-grid{grid-template-columns:1fr}.guide-index{grid-template-columns:1fr 1fr}.content-nav .container{overflow:auto;white-space:nowrap}.article-card h1{font-size:38px}}@media(max-width:600px){.mast .container{min-height:74px}.content-brand{font-size:30px}.back-home{padding:10px 12px}.article-card,.simple-card{padding:22px}.article-card h1,.simple-card h1{font-size:32px}.lead{font-size:17px}.guide-index{grid-template-columns:1fr}.article-card p,.article-card li,.simple-card p,.simple-card li{font-size:16px}}