:root{color-scheme:light;--page: #f7f8f3;--ink: #17201a;--muted: #667064;--panel: rgba(255, 255, 255, .94);--line: #d9dfd5;--line-strong: #aab5a4;--accent: #166534;--accent-strong: #0f4d28;--accent-soft: #e5f4e9;--warning: #b42318;--warning-soft: #fff0ed;--shadow: 0 22px 70px rgba(44, 62, 41, .16)}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:Noto Sans SC,Microsoft YaHei,PingFang SC,sans-serif;background:linear-gradient(120deg,rgba(22,101,52,.12),transparent 32%),linear-gradient(230deg,rgba(249,115,22,.13),transparent 28%),var(--page);color:var(--ink)}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,label,select{-webkit-tap-highlight-color:transparent}.app-shell{width:min(1040px,calc(100vw - 24px));margin:0 auto;padding:28px 0 36px}.hero{padding:8px 2px 22px}.eyebrow{margin:0 0 8px;color:var(--accent);font-size:13px;font-weight:800}.hero h1{max-width:11em;margin:0;font-size:42px;line-height:1.08}.lead{max-width:62ch;margin:14px 0 0;color:var(--muted);font-size:16px;line-height:1.75}.panel{background:var(--panel);border:1px solid rgba(255,255,255,.74);border-radius:8px;padding:22px;box-shadow:var(--shadow)}.form{display:grid;gap:16px}.upload-zone{position:relative;display:grid;gap:6px;min-height:116px;padding:24px;border:2px dashed var(--line-strong);border-radius:8px;background:linear-gradient(135deg,#16653414,#ffffffc7),#fff;cursor:pointer;transition:border-color .18s ease,background-color .18s ease}.upload-zone:hover,.upload-zone:focus-within{border-color:var(--accent)}.upload-zone input{position:absolute;inset:0;opacity:0;cursor:pointer}.upload-title{font-size:18px;font-weight:850;overflow-wrap:anywhere}.upload-subtitle{color:var(--muted);font-size:14px}.field{display:grid;gap:8px;min-width:0;color:var(--ink);font-size:14px}.field span,.field legend{font-weight:800}.field select{width:100%;min-height:48px;border:1px solid var(--line);border-radius:8px;padding:0 14px;background:#fff;color:var(--ink)}.field select:focus-visible,.primary:focus-visible,.secondary:focus-visible,.download:focus-visible,.color-option:focus-within{outline:3px solid rgba(22,101,52,.24);outline-offset:2px}.grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px}.color-field{margin:0;padding:0;border:0}.color-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.color-option{display:flex;align-items:center;justify-content:center;gap:8px;min-height:48px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer;transition:border-color .18s ease,background-color .18s ease}.color-option:has(input:checked){border-color:var(--accent);background:var(--accent-soft)}.color-option input{position:absolute;opacity:0;pointer-events:none}.swatch{width:18px;height:18px;border:1px solid rgba(23,32,26,.22);border-radius:50%}.primary,.secondary,.download{display:inline-flex;align-items:center;justify-content:center;min-height:50px;border-radius:8px;padding:0 18px;font-weight:850;cursor:pointer;transition:background-color .18s ease,border-color .18s ease,color .18s ease}.primary{border:0;background:var(--accent);color:#fff}.primary:hover{background:var(--accent-strong)}.primary:disabled{opacity:.72;cursor:progress}.status-bar,.meta-row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:16px;color:var(--muted);font-size:14px}.error-box{margin-top:16px;padding:12px 14px;border:1px solid rgba(180,35,24,.22);border-radius:8px;background:var(--warning-soft);color:var(--warning);font-size:14px}.preview-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:18px}.preview-card{border:1px solid var(--line);border-radius:8px;padding:14px;background:#fbfcf8}.preview-card h2{margin:0 0 12px;font-size:15px}.preview-card img,.empty-state{width:100%;aspect-ratio:3 / 4;object-fit:cover;border-radius:8px;background:linear-gradient(45deg,rgba(23,32,26,.06) 25%,transparent 25%),linear-gradient(-45deg,rgba(23,32,26,.06) 25%,transparent 25%),#eef2e9;background-size:20px 20px}.empty-state{display:grid;place-items:center;color:var(--muted);text-align:center;padding:18px}.meta-row{padding-top:2px}.meta-row strong{display:block;margin-bottom:4px;color:var(--ink)}.meta-row p{margin:0}.actions{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;margin-top:18px}.download{background:var(--ink);color:#fff}.download:hover{background:#263128}.secondary{border:1px solid var(--line);background:#fff;color:var(--ink)}.secondary:hover{border-color:var(--line-strong)}.notes{padding:16px 2px 0;color:var(--muted);font-size:14px;line-height:1.7}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}@media(max-width:720px){.app-shell{width:min(100% - 20px,1040px);padding-top:18px}.hero h1{font-size:32px}.panel{padding:14px}.grid,.preview-grid,.actions,.color-options{grid-template-columns:1fr}}