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Mono,monospace;font-size:80px;font-weight:700;color:var(--bg-4);line-height:1;margin-bottom:16px}.placeholder-title{font-size:32px;font-weight:700;margin-bottom:16px}.placeholder-desc{font-size:16px;color:var(--text-2);margin-bottom:40px;line-height:1.7}.placeholder-back{display:inline-flex;align-items:center;gap:8px;color:var(--text-2);text-decoration:none;font-size:14px;padding:10px 20px;border:1px solid var(--border);border-radius:var(--radius-md);transition:color .15s,border-color .15s}.placeholder-back:hover{color:var(--text-0);border-color:var(--border-light)}@media(max-width:600px){.page-container{padding:24px 16px 60px}.page-title{font-size:26px}.demo-grid,.xor-grid{grid-template-columns:1fr}}