:root{--accent:#245dcc;--bg:#edf3ff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:#172033;font:16px/1.7 "Microsoft YaHei",Arial,sans-serif}a{color:inherit;text-decoration:none}header,main,footer{width:min(1180px,calc(100% - 40px));margin:auto}header{min-height:82px;display:flex;align-items:center;gap:28px;border-bottom:1px solid var(--accent)}.brand{font-size:19px;font-weight:900}nav{margin-left:auto;display:flex;gap:24px;color:#556078}.pill{background:var(--accent);color:#fff;padding:9px 17px;border-radius:999px;font-weight:800}.hero{padding:74px 7%;margin:35px 0;min-height:500px;border-radius:30px;background:#fff;position:relative;overflow:hidden}.hero img{position:absolute;right:-8%;top:10%;width:52%;border-radius:28px;box-shadow:0 25px 60px #17203333}.eyebrow{color:var(--accent);font-weight:900;letter-spacing:.13em;font-size:12px}h1{max-width:600px;font-size:clamp(38px,6vw,72px);line-height:1.08;letter-spacing:-.06em;margin:15px 0}h2{line-height:1.25}.intro{max-width:560px;font-size:18px;color:#526078}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:28px 0 70px}.card,.panel{background:#fff;border:1px solid #d9dfeb;border-radius:18px;padding:26px}.card b{display:block;color:var(--accent);font-size:13px}.notice{padding:18px 24px;border-left:5px solid var(--accent);background:#fff;border-radius:10px;margin:30px 0}.workspace{display:grid;grid-template-columns:330px 1fr;gap:22px;margin:38px 0 65px}.stage{background:#101827;color:#fff;border-radius:22px;padding:30px;min-height:410px}.timeline-row{display:flex;gap:12px;overflow:auto;padding:20px 0}.timeline-row div{min-width:180px;padding:18px;background:#fff;border-top:4px solid var(--accent);border-radius:12px}details{background:#fff;border-bottom:1px solid #d9dfeb;padding:17px 20px}summary{cursor:pointer;font-weight:800}.faq{margin:25px 0 65px;border:1px solid #d9dfeb;border-radius:18px;overflow:hidden}.faq h2{padding:0 20px}footer{padding:28px 0 55px;color:#59647a;display:flex;justify-content:space-between;gap:20px;border-top:1px solid #d9dfeb}@media(max-width:760px){header{gap:12px}nav{display:none}header,main,footer{width:min(100% - 28px,1180px)}.hero{padding:52px 26px;min-height:440px}.hero img{opacity:.2;width:95%;right:-25%;top:25%}.grid,.workspace{grid-template-columns:1fr}footer{display:block}}