.sign-reward-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.sign-day-card{display:grid;grid-template-columns:42px repeat(2,minmax(0,1fr));gap:8px;align-items:center;min-height:78px;padding:10px;border:1px solid var(--border,#e2e8f0);border-radius:10px;background:var(--surface,#fff);min-width:0}
.sign-day-card h3{white-space:nowrap;font-size:13px;margin:0;line-height:1.4}.sign-day-card .field{margin:0;gap:5px;min-width:0}.sign-day-card .field>span{font-size:11px}.sign-day-card input{width:100%;min-width:0;height:32px;padding:5px 6px;font-size:13px}
.sign-bonus-editor{margin-top:14px;padding:14px;border:1px solid var(--border,#e2e8f0);border-radius:10px;background:var(--surface,#fff)}.sign-bonus-editor h3{margin:0 0 12px;font-size:14px}.sign-bonus-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;max-width:560px}.sign-bonus-fields .field{margin:0;min-width:0}.sign-bonus-fields input{width:100%;min-width:0;height:34px}.sign-day-total{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:12px;font-size:13px;line-height:1.6}.sign-day-total p{margin:0}.sign-day-total strong{display:block;color:var(--text,#253354)}
.reward-save-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:10px;margin-top:16px}.reward-save-actions .btn{white-space:normal}
.reward-form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.reward-form-grid .field{margin:0;min-width:0}.reward-form-grid input,.reward-form-grid select{width:100%;min-width:0}
.system-redpacket-identity{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:16px}.system-redpacket-identity span{display:flex;gap:8px;font-size:13px;color:#6c7890}.system-redpacket-identity strong{color:#253354}
.reward-plan-summary{margin:18px 0 12px;color:#42516d}.reward-device-tabs{display:flex;gap:8px;margin-bottom:16px}
.system-redpacket-preview{width:min(100%,320px);min-height:180px;margin:auto;padding:28px;border-radius:14px;background:linear-gradient(140deg,#d94c53,#b52d42);color:#fff;display:flex;flex-direction:column;gap:16px;text-align:center}.system-redpacket-preview strong{font-size:24px}.system-redpacket-preview p{margin:0;font-size:19px}.system-redpacket-preview span{font-size:13px}
@media(max-width:900px){.reward-form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.sign-reward-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.sign-day-card{grid-template-columns:42px repeat(2,minmax(0,1fr));gap:6px}.reward-form-grid{grid-template-columns:1fr}.reward-save-actions{justify-content:stretch}.reward-save-actions .btn{flex:1}.system-redpacket-identity{gap:9px}.system-redpacket-preview{padding:22px}}
@media(max-width:420px){.sign-reward-grid{grid-template-columns:1fr}.sign-day-card{grid-template-columns:42px repeat(2,minmax(0,1fr));min-height:68px}}