*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{min-height:100%;background:#f5f5f5;color:#222;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
button{font:inherit}
.landing{width:100%;max-width:750px;min-height:100vh;margin:0 auto;padding-bottom:calc(24px + env(safe-area-inset-bottom));background:#fff}
.hero-image{display:block;width:100%;height:auto;background:#ff5a20}
.action-card{margin:14px;padding:16px;border:1px solid #f1f1f1;border-radius:16px;background:#fff;box-shadow:0 5px 20px rgba(0,0,0,.06)}
.action-card h1{margin:0 0 14px;text-align:center;font-size:20px;line-height:1.35}
.actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.actions.count-1{grid-template-columns:minmax(0,1fr)}.actions.count-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.action{width:100%;height:42px;padding:0 4px;border:0;border-radius:10px;color:#fff;font-size:14px;font-weight:700;white-space:nowrap;cursor:pointer}
.action.wechat{background:#07c160}.action.taobao{background:linear-gradient(90deg,#ff5000,#ff7900)}.action.scan{border:1px solid #ffc49f;color:#d95011;background:#fff3ea}
.action:active{transform:scale(.97)}
.empty-tip{padding:18px 0;text-align:center;color:#999;font-size:13px}
.modal[hidden]{display:none}.modal{position:fixed;z-index:1000;inset:0;display:flex;align-items:center;justify-content:center;padding:20px}
.modal-mask{position:absolute;inset:0;background:rgba(0,0,0,.55)}
.modal-card{position:relative;z-index:1;width:min(88vw,360px);padding:22px;border-radius:16px;background:#fff;text-align:center;box-shadow:0 12px 40px rgba(0,0,0,.2)}
.modal-card h2{font-size:19px}.modal-card p{margin:8px 0 15px;color:#777;font-size:13px}.modal-card img{display:block;width:min(68vw,270px);height:min(68vw,270px);margin:0 auto;object-fit:contain}
.modal-close{position:absolute;top:8px;right:10px;width:34px;height:34px;border:0;background:transparent;color:#999;font-size:26px;line-height:34px}
.toast{position:fixed;z-index:1100;left:50%;bottom:15%;max-width:80%;padding:9px 15px;border-radius:8px;background:rgba(20,20,20,.85);color:#fff;font-size:13px;line-height:1.4;opacity:0;pointer-events:none;transform:translate(-50%,8px);transition:.2s}
.toast.show{opacity:1;transform:translate(-50%,0)}
.not-found{display:flex;min-height:100vh;flex-direction:column;align-items:center;justify-content:center;padding:30px;text-align:center}.not-found h1{font-size:21px}.not-found p{margin-top:8px;color:#999}
@media(max-width:360px){.action-card{margin:10px;padding:13px}.action{height:38px;font-size:12px}.actions{gap:5px}}