:root{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:#382c25;background:#fcf8f1;font-synthesis:none;--orange:#a84622;--muted:#786351;--line:#decebd}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,summary,select{-webkit-tap-highlight-color:transparent}button,summary{cursor:pointer}button:disabled{cursor:wait;opacity:.75}a{color:inherit}button:focus-visible,a:focus-visible,summary:focus-visible,select:focus-visible{outline:3px solid #a8462280;outline-offset:4px}.preview{min-height:48px;background:#392f29;color:#fff5e8;display:flex;justify-content:center;align-items:center;gap:24px;padding:8px 20px;font-size:13px;position:relative;z-index:3}.preview a{padding:8px}.preview details{position:relative}.preview summary{padding:8px;min-height:40px}.tools{position:absolute;right:0;top:40px;width:280px;background:#fffdf9;border:1px solid var(--line);padding:20px;color:#382c25;box-shadow:0 15px 40px #382c2520;border-radius:8px}.tools label{display:block;margin-bottom:16px}.tools select{display:block;width:100%;margin-top:8px;padding:10px}.tools button{min-height:44px;background:#f2e8dc;border:1px solid var(--line);border-radius:6px;padding:8px 16px}.tools p{line-height:1.6;font-size:12px}.shell{max-width:1100px;margin:auto;padding:28px 32px}header{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:13px}.brand{display:flex;gap:10px;align-items:center;text-decoration:none;color:#382c25;font-size:17px;font-weight:700}.brand i{display:block;width:24px;height:30px;background:linear-gradient(140deg,#d67a4a,#a84622);border-radius:50% 50% 45% 45%/60% 60% 40% 40%}main{max-width:680px;margin:44px auto 0}.intro{text-align:center;margin-bottom:30px}.intro h1{font-size:38px;letter-spacing:-1.3px;line-height:1.3;margin:0 0 12px}.intro p{color:var(--muted);font-size:16px;margin:0}.card{position:relative;background:#fffdf9;border:1px solid var(--line);border-top:6px solid var(--orange);border-radius:7px;padding:30px 40px;box-shadow:0 15px 45px #593b1810}.ribbon{position:absolute;right:35px;top:-6px;width:29px;height:43px;background:#bd542a;clip-path:polygon(0 0,100% 0,100% 100%,50% 80%,0 100%);transform-origin:top}.tabs{display:flex;max-width:310px;background:#f2e8dc;border-radius:12px;padding:4px;margin-bottom:26px}.tabs button{border:0;background:transparent;color:#75604f;min-height:46px;flex:1;border-radius:9px;font-size:15px;transition:background .16s,box-shadow .16s}.tabs button[aria-selected=true]{background:#fffdf9;color:#382c25;font-weight:650;box-shadow:0 2px 5px #382c2510}.head h2{font-size:23px;letter-spacing:-.5px;margin:0 0 8px}.head p{color:var(--muted);font-size:15px;margin:0;line-height:1.6}.inventory{font-size:13px;color:#75604f;margin:18px 0 23px;min-height:20px}.inventory::before{content:'';display:inline-block;width:6px;height:6px;background:#718058;border-radius:50%;margin-right:7px}.inventory.unknown::before{background:#ab7b43}.fields{display:grid;grid-template-columns:1fr 1fr;gap:18px}label{font-size:14px;font-weight:600}input{width:100%;height:52px;background:#fff;border:1px solid var(--line);border-radius:9px;padding:0 13px;margin-top:9px;font-size:16px;color:#382c25;scroll-margin:30px;outline:0}input:focus{border-color:var(--orange);box-shadow:0 0 0 3px #a8462214}input::placeholder{color:#8d7b6d}input[aria-invalid=true]{border-color:#ad3026}input:disabled{background:#f6f1e9;color:#7a6a5b}.field-error{display:block;color:#a13425;font-size:13px;line-height:1.5;min-height:24px;margin-top:5px}.primary{display:block;width:100%;min-height:52px;border:0;background:var(--orange);color:white;font-weight:650;border-radius:9px;margin-top:5px;transition:background .16s,transform .16s}.primary:hover:not(:disabled){background:#913a1b}.primary:active:not(:disabled){transform:translateY(1px)}.primary.busy:before{content:'';display:inline-block;vertical-align:-2px;width:13px;height:13px;margin-right:9px;border:2px solid #fff6;border-top-color:white;border-radius:50%;animation:spin .8s linear infinite}#status:empty{display:none}#status{padding:14px 15px;background:#f5ece0;border-radius:8px;color:#6f4e33;font-size:14px;line-height:1.7;margin-top:16px}#status.error{background:#faeee8;color:#923e27}#actions{display:flex;gap:12px;flex-wrap:wrap}#actions:empty{display:none}#actions button,.secondary{border:1px solid var(--line);border-radius:8px;background:#fffdf9;color:var(--orange);padding:11px 18px;min-height:48px;margin-top:14px;font-weight:600}.help{border-top:1px solid #eee3d6;margin-top:26px;padding-top:13px;color:var(--muted)}.help summary{min-height:44px;display:flex;align-items:center;justify-content:space-between;font-size:14px;list-style:none}.help summary::-webkit-details-marker{display:none}.help summary:after{content:'+';font-size:21px}.help[open] summary:after{content:'−'}.help p{font-size:14px;line-height:1.85;margin:5px 0}.privacy{text-align:center;font-size:13px;color:var(--muted);margin:18px 0}footer{margin-top:38px;text-align:center;font-size:12px;color:#887362}#result{text-align:center;padding:8px 0 12px}#result h2{font-size:25px;margin:16px 0 10px;outline:0}#result p{font-size:14px;color:var(--muted);line-height:1.7}.seal{width:56px;height:56px;display:grid;place-items:center;border-radius:50%;background:#f0e5d4;color:#96512a;font-size:27px;margin:auto}.delivery{display:flex;align-items:center;gap:12px;background:#f5eee3;border:1px dashed #ceb69d;padding:16px;border-radius:8px;margin:24px 0 16px;text-align:left}.delivery code{flex:1;overflow-wrap:anywhere;font-size:15px;min-width:0}.delivery button{min-width:65px;min-height:44px;background:#fffdf9;border:1px solid var(--line);border-radius:6px;color:var(--orange)}.result-note{font-size:13px!important}.success .ribbon{animation:open .4s ease-out both}.success .head,.success .inventory,.success .tabs{display:none}[hidden]{display:none!important}@keyframes open{to{transform:rotateX(85deg);opacity:0}}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:600px){.preview{justify-content:space-between;gap:6px;padding:7px 12px;font-size:11px}.preview a{display:none}.tools{right:0}.shell{padding:20px 16px}main{margin-top:29px}.intro{margin-bottom:23px}.intro h1{font-size:29px;letter-spacing:-.8px}.intro p{font-size:15px}.card{padding:24px 20px}.ribbon{right:20px;width:23px;height:35px}.tabs{max-width:265px;margin-bottom:22px;margin-right:16px}.fields{grid-template-columns:1fr;gap:5px}.field-error{min-height:18px}.inventory{margin:14px 0 17px}.head p{font-size:16px}.help{margin-top:22px}.help p{font-size:16px}.privacy{font-size:12px}footer{margin-top:26px}#status{font-size:16px}.delivery{padding:12px;gap:8px}.delivery code{font-size:13px}}@media(prefers-reduced-motion:reduce){*,*:before{animation:none!important;transition:none!important}}
/* The preview controls occupy space instead of covering the working form. */
.preview{flex-wrap:wrap}.preview details[open]{flex-basis:100%;max-width:680px}.tools{position:static;width:100%;box-shadow:none;display:grid;grid-template-columns:1fr 1fr;gap:12px;border-radius:8px}.tools label{margin:0}.tools p{margin:0;align-self:center}.tools button{align-self:center}@media(max-width:600px){.tools{grid-template-columns:1fr}}

.credential{margin:16px 0;padding:16px;text-align:left;border:1px solid var(--line);border-radius:8px;overflow-wrap:anywhere}.credential pre{white-space:pre-wrap;font:inherit;line-height:1.7}.credential a{display:block;color:var(--orange);margin:12px 0}.credential button{min-height:44px;padding:8px 18px;border:1px solid var(--line);background:#fff;border-radius:6px;color:var(--orange)}
/* H refinement: compact hierarchy, usable stock states and clear action feedback. */
.shell{padding-top:26px}main{margin-top:32px;max-width:700px}.intro{margin-bottom:26px}.intro h1{font-weight:700;font-size:36px}.card{padding:30px 36px 20px;background:linear-gradient(180deg,#fffdf9,#fffcf7);box-shadow:0 18px 48px #593b180b}.tabs{max-width:none;margin-right:30px;margin-bottom:24px}.tabs button{min-height:48px}.head h2{font-size:24px}.stockline{display:flex;align-items:center;gap:12px;justify-content:space-between;margin:20px 0 22px}.inventory{margin:0;display:flex;gap:10px;flex-wrap:wrap;font-size:13px;line-height:1.6}.inventory:before{display:none}.stock-item{display:inline-flex;gap:8px;align-items:center;border:1px solid #eadbcb;border-radius:7px;padding:7px 10px;background:#fffaf3}.stock-item strong{font-size:13px;color:#66513d;font-weight:600}.stock-item.empty{background:#f4efe8;color:#817264}.stock-item.empty strong{color:#817264;font-weight:500}.stock-item.available strong{color:#42653f}#refresh-stock{flex-shrink:0;border:0;background:transparent;color:#8a4a2d;font-size:13px;padding:10px 0 10px 10px;min-height:44px;text-decoration:underline;text-underline-offset:4px}input{height:54px}.primary{min-height:54px;font-size:16px}.primary:disabled{cursor:default;opacity:1;background:#eee4d7;color:#76624e}.primary.busy{background:#a84622;color:white}.tabs button:disabled{cursor:default;opacity:.65}.field-error{font-weight:400}#availability{font-size:14px;color:#786351;line-height:1.7;margin:12px 0 0}#availability:empty{display:none}.help{margin-top:22px;padding-top:9px}#status:focus{outline:0}#result{padding:16px 0 12px}.credential{border-color:#ddc7ae;background:#fffaf3;padding:18px 20px}.credential>span{font-size:12px;color:#786351}.credential pre{margin:8px 0;font-weight:600}.credential button{min-height:46px!important;font-size:14px}.credential a{min-height:44px;display:flex!important;align-items:center;font-size:14px}.privacy{margin-top:15px}footer{margin-top:30px}.success .stockline{display:none}
@media(max-width:600px){.shell{padding:18px 16px 24px}main{margin-top:25px}.intro h1{font-size:28px}.intro{margin-bottom:22px}.card{padding:24px 20px 14px}.tabs{margin-right:16px;margin-bottom:22px}.stockline{align-items:flex-start;flex-direction:column;gap:0;margin:16px 0 18px}.stock-item{padding:6px 10px}.inventory{gap:7px}#refresh-stock{padding:6px 0;align-self:flex-end;margin-bottom:-10px;min-height:44px}.head h2{font-size:22px}.head p{font-size:15px}.fields{gap:0}input{font-size:16px}.help{margin-top:18px}.credential{padding:14px}.credential pre{font-size:16px}#availability{font-size:14px}footer{margin-top:24px}}