.activity-body{background:#f8f5f3}.activity-shell{width:min(100%,460px);margin:0 auto;min-height:100vh;padding:18px 16px 34px}.activity-header{display:flex;align-items:center;justify-content:space-between;padding:4px 2px 18px}.activity-header strong{font-size:16px}.activity-header a{font-size:12px;color:#5e625e}.demo-ribbon{font-size:11px;color:#6b6259;line-height:1.6;text-align:center;background:#eee9e4;border-radius:6px;padding:8px 10px;margin-bottom:14px}.ad-slot{background:#fff;border:1px solid #e5ded8;border-radius:10px;padding:19px 18px;margin-bottom:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;color:#766d65}.ad-slot strong{font-size:14px;display:block;margin-bottom:5px;color:#474c46}.ad-slot small{color:#766d65;font-size:11px}.ad-tag{font-size:10px;white-space:nowrap;border:1px solid #d8d1ca;padding:2px 5px;border-radius:3px}.red-envelope{background:linear-gradient(135deg,#f1685e,#e43d37);border-radius:12px;padding:24px 20px;color:#fff;text-align:center;margin-bottom:18px;box-shadow:0 12px 26px #ba44321a}.reward-status{display:inline-block;border:1px solid #ffc5bf;border-radius:30px;padding:6px 24px;font-size:13px;background:#ffffff0d}.red-envelope h1{font-size:23px;margin:18px 0 12px;letter-spacing:0}.reward-amount{display:flex;justify-content:center;align-items:baseline;gap:7px;margin:4px 0 30px;font-variant-numeric:tabular-nums}.reward-amount small{font-size:23px;font-weight:700;color:#fff}.reward-amount strong{font-size:72px;line-height:1.15;letter-spacing:-.02em}.red-envelope button{display:block;width:100%;border-radius:40px;background:#fff;color:#cd302b;font-size:21px;font-weight:700;padding:15px 18px;margin-top:14px}.red-envelope button:hover{background:#fff0ec}.red-envelope button:disabled{background:#fbe3de;color:#9d4540;opacity:1}.red-envelope .envelope-secondary{font-size:16px;background:transparent;border:1px solid #ffd2cc;color:#fff;padding:12px}.red-envelope .envelope-secondary:hover{background:#ffffff15}.reward-caption{font-size:11px;color:#fff;margin:14px 0 0;line-height:1.7}.activity-tip{font-size:12px;color:#5d655b;line-height:1.8;margin:14px 2px;text-align:center}.activity-error{background:#fff1ee;color:#9a3029;padding:12px 15px;font-size:13px;line-height:1.7;border-radius:8px;margin:12px 0}.records-panel{background:#fff;border-radius:10px;padding:20px;margin:20px 0}.records-panel h2{font-size:16px}.records-panel .status-row{align-items:center}.records-panel .status-row small{font-size:11px}.intro-panel{background:#fff;border-radius:12px;padding:28px 24px;margin:30px 0}.intro-panel h1{font-size:25px}.intro-panel h2{font-size:16px;margin-top:30px}.intro-panel p{font-size:13px;line-height:1.9}.intro-panel .intro-note{border-top:1px solid #e5e7e0;padding-top:18px;margin-top:22px}.opening-overlay{position:fixed;inset:0;background:#15302599;z-index:5;display:grid;place-items:center;padding:28px}.opening-panel{width:min(100%,340px);padding:34px 26px 24px;border-radius:16px;background:#fff;text-align:center}.opening-panel h2{font-size:24px;margin:18px 0 10px}.opening-panel p{font-size:13px}.opening-panel .ad-tag{color:#766d65}.opening-panel button{width:100%;margin-top:18px}.activity-footer{font-size:11px;color:#6b6259;text-align:center;margin-top:24px}.entry-empty-link{font-size:12px}.secondary:hover{background:#dce8df}.danger:hover{background:#f0d4d7}@media(prefers-reduced-motion:no-preference){.red-envelope{animation:envelope-in .3s ease-out}@keyframes envelope-in{from{transform:translateY(5px)}to{transform:translateY(0)}}}

.activity-brand{display:flex;align-items:center;gap:10px;min-width:0}.activity-brand img{width:44px;height:44px;object-fit:contain;border-radius:10px;flex-shrink:0}.activity-brand strong{display:block;font-size:16px}.activity-brand small{display:block;font-size:11px;color:#6b6259;margin-top:4px}.opening-logo{display:block;width:72px;height:72px;object-fit:contain;border-radius:14px;margin:0 auto 20px}