:root{color-scheme:light;--ink:#422c21;--orange:#bd4f21;--paper:#fff9ef;--line:#e5d9c7}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:system-ui,"Microsoft YaHei",sans-serif;line-height:1.8}header,main,footer{max-width:1200px;margin:auto}header{display:flex;align-items:center;justify-content:space-between;padding:25px 5%}a{color:inherit;text-underline-offset:5px}.brand{text-decoration:none;font-weight:750;font-size:27px;letter-spacing:-1px}.brand span{font-size:12px;letter-spacing:2px;display:block;color:var(--orange)}.hero{display:grid;grid-template-columns:1.12fr 1fr;gap:4%;align-items:center;padding:70px 5% 90px}.eyebrow{font-size:13px;letter-spacing:2px;color:var(--orange);font-weight:650}h1{font-size:clamp(42px,5.3vw,72px);line-height:1.22;letter-spacing:-2px;margin:18px 0 26px;font-weight:650}h2{font-size:clamp(30px,3.5vw,44px);line-height:1.35;font-weight:600;letter-spacing:-1px}h3{font-size:21px;font-weight:600}.intro{max-width:490px;font-size:18px;line-height:1.95;color:#735949}.button{display:inline-block;padding:13px 27px;border-radius:40px;background:var(--orange);color:white;text-decoration:none;margin-top:18px;font-weight:650}.small{font-size:12px;color:#735949;margin-top:18px}.hero img{width:100%;height:auto;max-height:500px;object-fit:contain;mix-blend-mode:multiply}.story{padding:70px 5%;border-top:1px solid var(--line)}.chapters{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:55px}.chapters span{font-size:12px;letter-spacing:1px;color:var(--orange)}.chapters p{font-size:15px;color:#735949}.testing{border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1.1fr;gap:65px;padding:80px 5%;background:#f3eadb}.testing p{margin-top:20px}.privacy{font-size:14px;padding-top:20px;border-top:1px solid #d6c8b3}footer{padding:50px 5%;color:#735949;font-size:12px}footer strong{font-size:24px;color:var(--ink)}a:focus-visible,button:focus-visible{outline:3px solid #125b78;outline-offset:5px}@media(max-width:700px){.hero{grid-template-columns:1fr;padding:35px 7% 55px}.hero img{max-height:260px;grid-row:2}.chapters{grid-template-columns:1fr;gap:18px;margin-top:30px}.story{padding:45px 7%}.testing{grid-template-columns:1fr;gap:12px;padding:45px 7%}header{padding:20px 7%}}