:root{--ink:#172b25;--muted:#617168;--green:#18794e;--soft:#edf6ef;--line:#dce7df}*{box-sizing:border-box}body{margin:0;background:#fafcf9;color:var(--ink);font:15px/1.8 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{color:var(--green);text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,summary:focus-visible{outline:3px solid #64ad80;outline-offset:4px}.site-header{background:#fff;border-bottom:1px solid var(--line)}.header-inner{max-width:1120px;margin:auto;padding:18px 28px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:18px;font-weight:750}.brand img{border-radius:9px}.brand:hover{text-decoration:none}.back-link{font-size:14px}main{max-width:940px;margin:auto;padding:0 28px}.intro{text-align:center;padding:54px 0 32px}.eyebrow,.tag{font-size:12px;color:var(--green);font-weight:650;letter-spacing:1px}.eyebrow{margin:0 0 12px}h1{font-size:44px;line-height:1.35;letter-spacing:-1px;margin:0 0 18px}.lead{font-size:17px;color:var(--muted);margin:0}h2{font-size:23px;line-height:1.5;margin:16px 0 12px}h3{font-size:16px;margin:0 0 5px}p{margin:0 0 16px;color:var(--muted)}.solution{background:#fff;border:1px solid var(--line);padding:28px;border-radius:22px}.featured{background:var(--soft);margin-bottom:20px}.card-top{display:flex;align-items:center;gap:12px}.card-icon{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:#e0eee4;color:var(--green);font-size:14px;font-weight:700}.solution-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.solution-grid .solution{display:flex;flex-direction:column}.solution ul{padding-left:20px;margin:0 0 20px;color:var(--muted);font-size:14px}.solution li{margin:8px 0}.text-link{font-size:14px;font-weight:650;margin-top:auto}.button{display:inline-flex;align-items:center;justify-content:center;padding:13px 22px;border-radius:12px;min-height:48px;font-size:14px;font-weight:650;text-align:center}.button:hover{text-decoration:none}.primary{background:var(--green);color:#fff}.primary:hover{background:#11653f}.secondary{background:#fff;border:1px solid #c6dacf;color:var(--green)}.purchase-steps{display:grid;grid-template-columns:1fr 1fr;gap:20px 30px;list-style:none;padding:0;margin:24px 0}.purchase-steps li{display:flex;gap:12px;margin:0}.purchase-steps li>span{flex-shrink:0;width:30px;height:30px;background:#fff;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:700;color:var(--green)}.purchase-steps p{font-size:14px;margin:0}.card-note{font-size:12px;margin:12px 0 0}.faq{margin:40px 0}.faq h2{margin:0 0 18px}.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;margin:12px 0}.faq summary{cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 22px;list-style:none;font-weight:600;font-size:15px}.faq summary::-webkit-details-marker{display:none}.faq summary span{color:var(--green);font-size:22px;font-weight:400;flex-shrink:0}.faq details[open] summary span{transform:rotate(45deg)}.faq details p{padding:0 22px 20px;margin:0;font-size:14px}.help-card{display:flex;align-items:center;justify-content:space-between;gap:24px;background:var(--soft);border-radius:20px;padding:26px;margin-bottom:36px}.help-card h2{font-size:20px;margin:0 0 8px}.help-card p{font-size:14px;margin:0}.help-card .button{flex-shrink:0}footer{border-top:1px solid var(--line);padding:28px;text-align:center;font-size:13px}footer p{margin:0 0 12px}footer nav{display:flex;justify-content:center;flex-wrap:wrap;gap:22px}.source-note{font-size:11px;margin:18px 0 0}@media(max-width:640px){.header-inner{padding:14px 16px}.brand{font-size:16px}.brand img{width:30px;height:30px}.back-link{font-size:12px}main{padding:0 16px}.intro{padding:30px 0 26px}h1{font-size:30px}.lead{font-size:14px}.solution{padding:22px 20px;border-radius:18px}.solution h2{font-size:21px}.solution p{font-size:14px}.solution-grid,.purchase-steps{grid-template-columns:1fr}.purchase-steps{gap:18px}.purchase-steps h3{font-size:15px}.featured .button{width:100%}.faq{margin:30px 0}.faq h2{font-size:22px}.faq summary{padding:17px;font-size:14px}.faq details p{padding:0 17px 18px}.help-card{padding:22px;flex-direction:column;align-items:stretch;gap:18px}.help-card .button{width:100%}footer{padding:24px 16px}}
