.sponsor-section{margin:48px 20px 0;text-align:center;color:#626975;font-family:inherit}.sponsor-section p{margin:0 0 14px;font-size:14px;line-height:1.7}.sponsor-section .sponsor-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 24px;border:1px solid #666fff;border-radius:999px;background:#666fff;color:#fff;font-size:15px;font-weight:600;text-decoration:none;box-sizing:border-box}.sponsor-button:hover{background:#5149dc}.sponsor-section small{display:block;margin-top:12px;font-size:12px;line-height:1.7}.sponsor-button:focus-visible,.sponsor-close:focus-visible,.sponsor-image-link:focus-visible{outline:3px solid #666fff;outline-offset:4px}#sponsor-dialog{box-sizing:border-box;width:calc(100vw - 32px);max-width:520px;max-height:calc(100vh - 32px);max-height:calc(100dvh - 32px);padding:16px;border:1px solid #e7e7ed;border-radius:20px;background:#fff;color:#202124;overflow:auto;box-shadow:0 24px 80px #0003}#sponsor-dialog::backdrop{background:#15152799}.sponsor-dialog-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.sponsor-dialog-head h2{margin:0;font-size:18px;line-height:1.5}.sponsor-close{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;flex:none;padding:0;border:0;border-radius:50%;background:#f2f3f7;color:#484858;font-size:28px;cursor:pointer}.sponsor-image-link{display:block;margin-top:12px;line-height:0}.sponsor-image-link img{display:block;width:100%;height:auto}.sponsor-hint{margin:12px 0 0;text-align:center;font-size:13px;line-height:1.7;color:#626975}body.sponsor-dialog-open{overflow:hidden}@media(max-width:480px){.sponsor-section{margin-top:40px}#sponsor-dialog{padding:12px}.sponsor-hint{font-size:12px}}
#sponsor-dialog:not([open]){display:none}

/* Responsive shell: percentage width excludes the vertical scrollbar. */
*,*::before,*::after{box-sizing:border-box}
body{width:100%;height:auto;min-height:100vh;padding:0 20px}
header{padding:24px 0 18px}
.h1{padding:0;text-align:center}
h1{margin:12px 0;font-size:clamp(22px,4vw,29px);line-height:1.35}
.h1 p{color:#8a8b99;margin:0;font-size:12px}
.card{height:auto;margin:10px 0 0;padding:16px;border-radius:20px;box-shadow:0 12px 40px rgb(34 57 100 / 5%)}
.container{height:auto;min-width:0;padding:0}
.box{width:100%;min-width:0;min-height:380px;margin:0;padding:28px 16px;border-radius:14px;overflow-wrap:anywhere}
.box img{width:64px;max-width:100%;height:auto;padding:0;margin-bottom:22px}
.upload-label{padding:0;margin-bottom:0;font-size:16px;line-height:1.65}
.info-text{padding:22px 0 0;color:#7c7f8d}
.info-text p{font-size:12px;line-height:1.65;margin:6px 0}
div#download-link{max-width:100%;overflow-wrap:anywhere}
.sponsor-section{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:22px 8px 0;padding:18px 0;border-bottom:1px solid #e9eaf0;text-align:left}
.sponsor-copy{min-width:0}
.sponsor-section p{margin:0;color:#454657;font-size:14px;font-weight:600;line-height:1.6}
.sponsor-section small{margin-top:4px;color:#9193a0;font-size:12px;line-height:1.6}
.sponsor-section .sponsor-button{flex-shrink:0;min-height:44px;padding:0 18px;border:1px solid #dfdff2;background:#fff;color:#6861dd;font-size:13px;box-shadow:0 2px 5px #40388104}
.sponsor-section .sponsor-button:hover{background:#f3f1ff;border-color:#bfbaff}
.footer{width:100%;margin:24px 0 28px;padding:0 8px;font-size:12px;line-height:1.8;overflow-wrap:anywhere}
.footer p{margin:7px 0}
.footer a{color:#858699}
.footer>a+a{margin-left:14px}
@media(max-width:480px){body{padding:0 16px}header{padding:20px 0 14px}.card{padding:12px}.box{min-height:350px;padding:24px 12px}.sponsor-section{gap:12px;margin:14px 4px 0;padding:16px 0}.sponsor-section .sponsor-button{padding:0 14px}.sponsor-section p{font-size:13px}.sponsor-section small{font-size:11px}.footer{margin-top:20px}}

.sponsor-section{margin:0 8px 10px;padding:10px 0;border-bottom:0}.card{margin-top:0}@media(max-width:480px){.sponsor-section{margin:0 4px 10px;padding:8px 0}}

/* The original full-resolution appreciation image stays visible at the edge. */
.sponsor-float{position:fixed;z-index:10;top:180px;right:20px;width:168px;padding:8px;border:1px solid #e9e7f0;border-radius:14px;background:#fff;box-shadow:0 8px 28px #26203d0d}
.sponsor-float .sponsor-button{display:block;padding:0;min-height:44px;background:none;color:#777387;text-decoration:none;text-align:center;border:0;border-radius:8px}
.sponsor-float .sponsor-button:hover{background:#faf9fd}
.sponsor-float img{display:block;width:100%;height:auto;border-radius:7px}
.sponsor-float span{display:block;margin-top:7px;font-size:11px;line-height:1.6;white-space:nowrap}
@media(min-width:701px) and (max-width:1299px){body{padding-right:208px}}
@media(max-width:700px){.sponsor-float{top:110px;right:max(8px,env(safe-area-inset-right));width:76px;padding:4px;border-radius:9px;box-shadow:0 4px 16px #26203d12}.sponsor-float span{margin-top:4px;font-size:9px;white-space:normal}.sponsor-float img{border-radius:4px}}

/* Keep the tool large and let the footer sit at the foot of the viewport. */
body{display:flex;flex-direction:column;min-height:100vh;min-height:100dvh}
header{flex:none}
.card{display:flex;flex:1 0 auto;min-height:60vh}
.container{flex:1;align-items:stretch}
.box{flex:1;min-height:60vh}
.footer{flex:none;margin:0;padding:24px 8px 20px}
@media(min-width:701px){.sponsor-float{width:220px}.sponsor-float span{font-size:12px}}
@media(min-width:701px) and (max-width:1399px){body{padding-right:260px}}