:root{
      --paper:#f4efe5;--paper-deep:#e9e0cf;--ink:#172033;--muted:#60708a;--line:#d7d1c4;
      --blue:#1f57ff;--blue-dark:#1743c7;--green:#16794c;--red:#b13b3b;--amber:#9a6412;
      --card:rgba(255,255,255,.78);--card-solid:#fffdf8;--shadow:0 18px 45px rgba(49,45,35,.08);
      --radius:1.2rem;color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif
    }
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:radial-gradient(circle at 88% 5%,rgba(31,87,255,.08),transparent 24rem),radial-gradient(circle at 8% 28%,rgba(22,121,76,.05),transparent 22rem),linear-gradient(180deg,#f8f4ec 0%,var(--paper) 42%,#f6f1e8 100%);line-height:1.65}
    button,input,select,textarea{font:inherit}button{color:inherit}a{color:inherit}.site-header{max-width:1180px;margin:0 auto;padding:1.2rem 1rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;border-bottom:1px solid rgba(215,209,196,.78)}
    .site-brand{display:inline-flex;align-items:center;gap:.72rem;font-weight:900;text-decoration:none;letter-spacing:.02em}.brand-mark{width:2.35rem;height:2.35rem;border-radius:.8rem;background:var(--ink);color:#fff;display:grid;place-items:center;box-shadow:0 8px 22px rgba(23,32,51,.16)}
    .header-actions{display:flex;gap:.55rem;flex-wrap:wrap;justify-content:flex-end}.container{width:min(1180px,calc(100% - 2rem));margin:0 auto}.hero{padding:4.3rem 0 2.4rem;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(270px,.75fr);gap:2rem;align-items:end}
    .eyebrow{display:inline-flex;align-items:center;gap:.45rem;color:var(--blue-dark);font-weight:900;text-transform:uppercase;letter-spacing:.08em;font-size:.8rem}.eyebrow:before{content:"";width:1.8rem;height:2px;background:currentColor}h1{margin:.8rem 0 1rem;font-size:clamp(2.4rem,6vw,5rem);line-height:1.02;letter-spacing:-.055em;max-width:900px}.hero p{margin:0;color:var(--muted);font-size:clamp(1rem,2vw,1.2rem);max-width:780px}
    .hero-note{padding:1.2rem;border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,253,248,.72);box-shadow:var(--shadow)}.hero-note strong{display:block;margin-bottom:.3rem}.mini-list{display:grid;gap:.45rem;margin-top:.8rem;color:var(--muted);font-size:.93rem}.mini-list span{display:flex;gap:.5rem;align-items:flex-start}.mini-list span:before{content:"✓";color:var(--green);font-weight:900}
    .privacy-strip{margin-bottom:1rem;padding:.9rem 1rem;border:1px solid rgba(22,121,76,.28);border-radius:1rem;background:rgba(231,247,238,.74);display:flex;align-items:flex-start;gap:.75rem;color:#235c43}.privacy-strip b{color:#174c35}
    .workspace{display:grid;grid-template-columns:minmax(330px,.88fr) minmax(0,1.12fr);gap:1rem;align-items:start;padding-bottom:1rem}.card{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow);backdrop-filter:blur(12px)}.card-head{padding:1.1rem 1.2rem;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:flex-start;gap:1rem}.card-head h2,.card-head h3{margin:0;font-size:1.08rem}.card-head p{margin:.2rem 0 0;color:var(--muted);font-size:.9rem}.card-body{padding:1.2rem}.step{width:2rem;height:2rem;border-radius:999px;display:grid;place-items:center;background:var(--ink);color:#fff;font-weight:900;flex:0 0 auto}.head-title{display:flex;gap:.75rem;align-items:flex-start}
    .drop-zone{border:1.5px dashed #9ba8bc;border-radius:1rem;padding:1.45rem;text-align:center;background:rgba(255,255,255,.48);transition:.2s ease;cursor:pointer}.drop-zone:hover,.drop-zone.dragging{border-color:var(--blue);background:rgba(31,87,255,.055);transform:translateY(-1px)}.drop-icon{width:3rem;height:3rem;border-radius:1rem;display:grid;place-items:center;margin:0 auto .75rem;background:rgba(31,87,255,.1);color:var(--blue);font-size:1.45rem;font-weight:900}.drop-zone strong{display:block;font-size:1.05rem}.drop-zone small{color:var(--muted)}
    .file-chip{margin-top:.8rem;padding:.8rem;border-radius:.85rem;background:#fff;border:1px solid var(--line);display:none;grid-template-columns:1fr auto;gap:.7rem;align-items:center}.file-chip.show{display:grid}.file-name{font-weight:800;overflow-wrap:anywhere}.file-meta{color:var(--muted);font-size:.84rem}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:.85rem;margin-top:1rem}.field{display:grid;gap:.38rem}.field.full{grid-column:1/-1}.field label{font-size:.86rem;font-weight:850}.field-hint{font-size:.78rem;color:var(--muted)}
    input,select{width:100%;border:1px solid #c8c3b8;background:#fffdf9;color:var(--ink);border-radius:.8rem;padding:.72rem .82rem;outline:none;transition:.15s ease}input:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(31,87,255,.11)}.password-wrap{position:relative}.password-wrap input{padding-right:3.5rem}.password-toggle{position:absolute;right:.42rem;top:50%;transform:translateY(-50%);border:0;background:transparent;font-weight:800;font-size:.8rem;color:var(--blue-dark);cursor:pointer;padding:.35rem}
    .button-row{display:flex;gap:.65rem;flex-wrap:wrap;margin-top:1rem}.btn{appearance:none;border:1px solid transparent;border-radius:.78rem;padding:.7rem 1rem;font-weight:900;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:.45rem;text-decoration:none;transition:.15s ease}.btn:hover:not(:disabled){transform:translateY(-1px)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{color:#fff;background:var(--blue);box-shadow:0 9px 20px rgba(31,87,255,.18)}.btn-primary:hover:not(:disabled){background:var(--blue-dark)}.btn-secondary{background:#fff;border-color:var(--line)}.btn-danger{background:#fff4f2;border-color:#edc4bd;color:var(--red)}.btn-small{padding:.45rem .7rem;font-size:.84rem}
    .status-box{margin-top:1rem;border-radius:.9rem;padding:.85rem .9rem;background:#f4f5f7;color:var(--muted);font-size:.9rem;display:flex;gap:.65rem;align-items:flex-start}.status-box[data-state="success"]{background:#eaf7ef;color:#17613c}.status-box[data-state="error"]{background:#fff0ee;color:#8e2d2d}.status-box[data-state="working"]{background:#eef2ff;color:#2347b2}.status-box[data-state="warn"]{background:#fff5df;color:#80500b}.status-dot{width:.62rem;height:.62rem;border-radius:50%;background:currentColor;margin-top:.4rem;flex:0 0 auto}.progress{height:.48rem;border-radius:999px;background:#e5e7eb;margin-top:.65rem;overflow:hidden;display:none}.progress.show{display:block}.progress>span{display:block;height:100%;width:0;background:var(--blue);transition:width .2s ease}
    .preview-card{min-height:620px}.preview-toolbar{display:flex;gap:.55rem;flex-wrap:wrap;align-items:center;justify-content:space-between}.preview-toolbar .group{display:flex;gap:.45rem;align-items:center;flex-wrap:wrap}.page-indicator{font-size:.88rem;color:var(--muted);min-width:8.5rem;text-align:center}.preview-stage{min-height:510px;padding:1rem;background:linear-gradient(135deg,#e7e5df,#f0ede6);display:grid;place-items:center;overflow:auto;border-radius:0 0 var(--radius) var(--radius)}.empty-preview{text-align:center;color:var(--muted);max-width:380px;padding:3rem 1rem}.empty-preview .big{font-size:3rem;display:block;margin-bottom:.5rem}#pdfCanvas{display:none;max-width:100%;height:auto;background:#fff;box-shadow:0 12px 35px rgba(0,0,0,.18)}#pdfCanvas.show{display:block}
    .results{display:none;padding:1rem 0 0}.results.show{display:block}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:.8rem;margin-bottom:1rem}.metric{padding:1rem;border:1px solid var(--line);border-radius:1rem;background:var(--card-solid);box-shadow:var(--shadow)}.metric span{display:block;color:var(--muted);font-size:.8rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em}.metric strong{display:block;font-size:1.45rem;margin-top:.15rem;line-height:1.2}.action-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:1rem;margin-bottom:1rem}.action-card{padding:1.15rem}.action-card h3{margin:0 0 .45rem}.action-card p{margin:.35rem 0;color:var(--muted);font-size:.9rem}.option-grid{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;margin-top:.9rem}.download-ready{display:none;margin-top:1rem;padding:1rem;border:1px solid rgba(22,121,76,.28);border-radius:1rem;background:#eef9f2}.download-ready.show{display:block}.download-ready strong{display:block;margin-bottom:.25rem}.download-ready p{margin:.15rem 0 .75rem;color:#35654b;font-size:.88rem}.download-ready .button-row{margin-top:0}
    .notice-card{padding:1.1rem 1.2rem;margin-bottom:1rem}.notice-card h3{margin:0 0 .55rem}.notice-card ul{margin:.5rem 0 0;padding-left:1.2rem;color:var(--muted)}.faq{padding:2.5rem 0 4rem}.faq h2{font-size:clamp(1.8rem,4vw,3rem);margin:0 0 1rem;letter-spacing:-.035em}details{border-top:1px solid var(--line);padding:.9rem 0}details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;font-weight:900}details p{color:var(--muted);margin:.55rem 0 0}footer{border-top:1px solid var(--line);padding:1.25rem 0 2.5rem;color:var(--muted);font-size:.88rem}.hidden{display:none!important}
    @media(max-width:900px){.hero,.workspace,.action-grid{grid-template-columns:1fr}.hero{padding-top:2.8rem}.preview-card{min-height:520px}.preview-stage{min-height:420px}.metrics{grid-template-columns:1fr 1fr}}
    @media(max-width:600px){.site-header{align-items:flex-start}.header-actions{display:none}.form-grid,.option-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.metrics{grid-template-columns:1fr 1fr}.metric strong{font-size:1.25rem}h1{font-size:2.55rem}.card-head{padding:1rem}.card-body{padding:1rem}.btn{width:100%}.preview-toolbar{align-items:stretch}.preview-toolbar .group{width:100%;justify-content:center}}

/* Tool-center integration */
.tool-related{width:min(1180px,calc(100% - 2rem));margin:clamp(2.5rem,6vw,5rem) auto 0}
.tool-related h2{margin-block-end:1rem}
.section-title{margin:0 0 1rem;font-size:clamp(1.2rem,2vw,1.5rem);line-height:1.25}
.site-footer p{margin:.35rem 0}
@media(max-width:600px){.tool-related{width:min(100% - 1.5rem,1180px)}}