:root{--bg:#f5f6fa;--card:#fff;--line:#e8eaf0;--text:#2f3542;--sub:#8b93a6;--primary:#3f6ff2;--danger:#ff3a34}*{box-sizing:border-box}html,body,#app{width:100%;min-height:100%;color:var(--text);background:var(--bg);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}.page{background:var(--bg);width:100%;min-height:100vh;margin:0;padding-bottom:84px}.topbar{border-bottom:1px solid var(--line);background:#fff;align-items:center;gap:10px;height:52px;padding:0 14px;display:flex}.back-btn{color:#56637a;cursor:pointer;border:1px solid var(--line);background:0 0;border-radius:6px;height:30px;padding:0 10px}.page-title{font-size:15px;font-weight:600}.hero{color:#fff;letter-spacing:2px;background:linear-gradient(#3b72f7 0%,#4c7bf8 100%);justify-content:center;align-items:flex-end;height:clamp(90px,18vw,180px);font-size:clamp(36px,8vw,120px);font-weight:800;display:flex}.card{background:var(--card);border:1px solid var(--line);border-radius:10px;width:calc(100% - 24px);margin:12px auto;padding:18px 20px}.section{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:10px 4px;display:flex}.section:last-child{border-bottom:0}.section h3{margin:0;font-size:16px}.home-row{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;min-height:72px;padding:14px 8px;display:flex}.home-row:last-child{border-bottom:0}.home-row h3{margin:0 0 6px;font-size:18px}.home-sub{color:var(--sub);margin:0;font-size:13px}.home-action-btn{color:#fff;cursor:pointer;background:var(--primary);border:none;border-radius:8px;min-width:124px;height:38px;padding:0 16px}.steps{justify-content:center;gap:10px;padding:18px 4px 8px;display:flex}.home-steps{margin-top:8px}.step-item{text-align:center;border:1px solid var(--line);border-radius:8px;width:168px;padding:14px 12px}.step-no{color:#fff;background:var(--primary);border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;font-size:12px;display:inline-flex}.step-item h4{margin:10px 0 4px;font-size:14px}.step-item p{color:var(--sub);margin:0;font-size:12px}.field-group{margin-bottom:10px}.field-group label{color:var(--sub);margin-bottom:6px;font-size:13px;display:block}.input{border:1px solid var(--line);border-radius:6px;outline:none;width:100%;height:40px;padding:0 12px;font-size:14px}.input:focus{border-color:var(--primary)}.radio-row{flex-wrap:wrap;gap:14px;display:flex}.radio-item{align-items:center;gap:6px;font-size:14px;display:inline-flex}.primary-btn,.danger-btn{color:#fff;border:0;border-radius:20px;width:100%;height:40px;font-size:15px}.primary-btn{background:var(--primary)}.danger-btn{background:var(--danger)}.submit{margin-top:8px}.primary-btn:disabled,.danger-btn:disabled{opacity:.5}.error-tip{color:#f56c6c;margin:4px 0;font-size:13px}.pay-card{min-height:260px}.amount-line{color:#f56c6c;margin:0 0 10px}.amount-line strong{font-size:20px}.pay-row{align-items:center;gap:8px;font-size:15px;display:flex}.dot{background:var(--primary);border-radius:50%;width:8px;height:8px}.pay-method{margin:18px 0 4px;font-size:16px}.sub-tip{color:var(--sub);margin:0 0 16px;font-size:12px}.agree-row{color:var(--sub);align-items:center;gap:8px;font-size:13px;display:inline-flex}.order-no,.result-tip{color:var(--sub);margin:10px 0 0;font-size:13px}.pay-btn{width:calc(100% - 24px);position:fixed;bottom:10px;left:50%;transform:translate(-50%)}.home-desc{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.home-desc h4{margin:0 0 8px;font-size:16px}.home-desc p{color:var(--sub);margin:0;font-size:14px;line-height:1.7}@media (width<=768px){.topbar{height:48px;padding:0 10px}.hero{height:100px;font-size:56px}.card{width:calc(100% - 24px);margin:12px auto;padding:14px}.home-row{gap:10px;min-height:64px}.home-action-btn{min-width:92px;font-size:13px}.step-item{width:138px;padding:12px 10px}.home-desc{grid-template-columns:1fr;gap:14px}}