:root{--brand:#1c7ed6;--brand-dark:#1864ab;--ink:#1a2027;--muted:#5b6672;--bg:#ffffff;--soft:#f4f7fb;--line:#e6eaf0;--radius:16px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}a{color:var(--brand);text-decoration:none}img{max-width:100%;display:block;height:auto}.wrap{max-width:1080px;margin:0 auto;padding:0 24px}.nav{position:sticky;top:0;z-index:50;background:#ffffffeb;backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}.nav .logo{font-weight:800;font-size:18px;color:var(--ink);letter-spacing:-.2px}.nav .logo b{color:var(--brand)}.nav-links{display:flex;gap:22px;font-size:14px;color:var(--muted)}.nav-links a:hover{color:var(--brand)}.hero{background:linear-gradient(160deg,#eef5ff,#fff 70%);padding:74px 0 64px}.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}.eyebrow{display:inline-block;font-size:13px;color:var(--brand);background:#e7f0ff;padding:6px 14px;border-radius:999px;font-weight:600;margin-bottom:18px}.hero h1{font-size:42px;line-height:1.25;letter-spacing:-1px;font-weight:800;margin-bottom:18px}.hero h1 em{font-style:normal;color:var(--brand)}.hero p.sub{font-size:19px;color:var(--muted);max-width:520px;margin-bottom:28px}.cta-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:16px;padding:13px 26px;border-radius:12px;border:1.5px solid transparent;cursor:pointer}.btn.primary{background:var(--brand);color:#fff}.btn.primary:hover{background:var(--brand-dark)}.btn.ghost{background:#fff;border-color:var(--line);color:var(--ink)}.btn.ghost:hover{border-color:var(--brand);color:var(--brand)}.qr-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 12px 40px #14285014;text-align:center;max-width:280px}.qr-box{width:210px;height:210px;margin:0 auto 14px;border-radius:14px;background:repeating-conic-gradient(#fff 0% 25%,#eef2f7 0% 50%) 0 0/40px 40px;display:flex;align-items:center;justify-content:center;border:1px dashed var(--line)}.qr-box span{font-size:13px;color:#8993a0;max-width:150px;text-align:center}.qr-card .tip{font-size:13px;color:var(--muted)}section{padding:64px 0}.sec-head{margin-bottom:44px}.sec-head h2{font-size:30px;letter-spacing:-.5px;font-weight:800;margin-bottom:10px}.sec-head p{color:var(--muted);font-size:16px;max-width:640px}main section:nth-of-type(2n){background:var(--soft)}.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px}.card h3{font-size:18px;font-weight:700;margin-bottom:8px}.card p{color:var(--muted);font-size:14.5px}.card .num{display:inline-block;font-size:13px;color:var(--brand);font-weight:700;margin-bottom:10px}.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.feat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px}.feat h3{font-size:19px;font-weight:750;margin-bottom:6px;display:flex;align-items:center;gap:10px}.feat h3 .ico{font-size:22px}.feat p{color:var(--muted);font-size:15px;margin-bottom:10px}.feat .eg{font-size:13px;color:#73808f;border-left:3px solid var(--brand);padding-left:10px}.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.scene{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;text-align:center}.scene .ico{font-size:28px;margin-bottom:10px}.scene h4{font-weight:700;margin-bottom:4px}.scene p{font-size:13px;color:var(--muted)}.faq{max-width:760px;margin:0 auto}details{border:1px solid var(--line);border-radius:14px;background:#fff;margin-bottom:12px;overflow:hidden}summary{cursor:pointer;padding:18px 22px;font-weight:600;font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center}summary::-webkit-details-marker{display:none}summary:after{content:"＋";color:var(--brand);font-weight:700}details[open] summary:after{content:"－"}details .ans{padding:0 22px 20px;color:var(--muted);font-size:15px}.cta{background:linear-gradient(150deg,var(--brand-dark),var(--brand));color:#fff;text-align:center}.cta h2{color:#fff;font-size:28px;margin-bottom:10px}.cta p{opacity:.9;margin-bottom:26px}.cta .btn.primary{background:#fff;color:var(--brand)}footer{border-top:1px solid var(--line);padding:34px 0;color:var(--muted);font-size:13px}footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}.post-list{max-width:760px;margin:0 auto;display:grid;gap:16px}.post-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;display:block}.post-card:hover{border-color:var(--brand)}.post-card h3{font-size:19px;font-weight:700;margin-bottom:6px}.post-card p{color:var(--muted);font-size:15px}.post-card time{font-size:12.5px;color:#9aa4af;display:block;margin-top:10px}@media(max-width:860px){.hero .wrap{grid-template-columns:1fr}.qr-card{max-width:100%}.pain-grid{grid-template-columns:1fr 1fr}.feat-grid{grid-template-columns:1fr}.scene-grid{grid-template-columns:1fr 1fr}.hero h1{font-size:32px}.nav-links{display:none}.hero{padding:52px 0 40px}}@media(max-width:520px){.pain-grid{grid-template-columns:1fr}.sec-head h2{font-size:25px}}