:root{--ink: #1a1c20;--muted: #6a6e76;--red: #d01012;--yellow: #ffcf00;--blue: #006db7;--bg-soft: #f2f3f5}*{box-sizing:border-box}body{margin:0;font-family:Archivo,Helvetica Neue,Arial,sans-serif;color:var(--ink);background:#fff}.app{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;padding:0 28px;height:68px;border-bottom:2px solid var(--ink);gap:12px}.brand{display:flex;align-items:center;gap:14px}.brand-mark{width:40px;height:40px;background:var(--red);border-radius:9px;display:flex;align-items:center;justify-content:center}.brand-name{font-size:22px;font-weight:900;letter-spacing:.04em}.topbar-actions{display:flex;align-items:center;gap:12px}.paper-select{display:flex;align-items:center;gap:8px;border:2px solid var(--ink);border-radius:8px;padding:8px 12px;font-size:13px;font-weight:700}.paper-select select{font:inherit;font-weight:900;border:none;background:none;color:var(--ink);cursor:pointer}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:none;border-radius:8px;padding:12px 20px;font-family:inherit;font-size:14px;font-weight:900;letter-spacing:.03em;white-space:nowrap;cursor:pointer;color:var(--ink);transition:transform .06s ease,filter .12s ease}.btn:active{transform:translateY(1px)}.btn:hover{filter:brightness(1.06)}.btn-yellow{background:var(--yellow)}.btn-blue{background:var(--blue);color:#fff}.btn-black{background:var(--ink);color:#fff}.btn-outline{background:#fff;border:2px solid var(--ink);padding:10px 20px}.workspace{display:flex;flex-grow:1;min-height:0}.panel{display:flex;flex-direction:column;padding:20px 28px}.panel-pattern{flex:1 1 0;border-right:2px solid var(--ink);min-width:0}.panel-preview{flex:1 1 0;min-width:0}.panel-inner{width:100%;max-width:560px;margin:0 auto;display:flex;flex-direction:column;flex-grow:1;justify-content:space-between}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.panel-label{margin:0;font-size:12px;font-weight:900;letter-spacing:.12em;color:var(--muted)}.tools{display:flex;gap:8px}.tool{width:38px;height:38px;border:2px solid var(--ink);border-radius:8px;background:#fff;color:var(--ink);display:flex;align-items:center;justify-content:center;cursor:pointer}.tool.active{background:var(--ink);color:#fff}.editor-wrap{aspect-ratio:1 / 1;width:clamp(240px,min(100%,calc(100vh - 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40px));text-align:center;font-family:inherit;color:var(--ink)}.modal::backdrop{background:#0e0f128c}.modal-icon{width:64px;height:64px;background:var(--blue);border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:34px;font-weight:900;color:#fff;margin:0 auto 16px}.modal h3{font-size:26px;font-weight:900;margin:0 0 12px}.modal p{font-size:15px;font-weight:500;color:#4a4e56;line-height:1.5;margin:0 auto 20px;max-width:330px}.modal-actions{display:flex;flex-direction:column;gap:10px}.modal-actions .btn{width:100%}@media (max-width: 860px){.topbar{padding:0 16px}.topbar-actions{gap:8px}.paper-select{padding:8px 10px;gap:6px}.btn{padding:12px 14px;font-size:13px;gap:8px}.workspace{flex-direction:column}.panel-pattern{border-right:none;border-bottom:2px solid var(--ink)}.panel-preview{flex:1 1 auto}.steps{flex-wrap:wrap}.step{flex:1 1 50%;border-bottom:2px solid var(--ink)}.step:nth-child(n+3){border-bottom:none}.step:nth-child(2n){border-right:none}.brand-name{display:none}}@media (max-width: 560px){.brand-mark{width:34px;height:34px}.paper-select{padding:6px 8px;font-size:12px}.paper-select select{font-size:12px}.paper-select [data-i18n=paperLabel]{display:none}.topbar .btn{padding:10px;font-size:12px;gap:6px}.lang-toggle .toggle-btn{padding:7px 9px;font-size:11px}}