:root{color-scheme:light;--ink:#1a2724;--muted:#596b65;--line:#dfe7df;--green:#16725c;--bg:#f7faf5}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif}
.wrap{width:min(1160px,calc(100% - 60px));margin:auto}header{border-bottom:1px solid var(--line);background:#fff}.head{height:78px;display:flex;justify-content:space-between;align-items:center}.brand{text-decoration:none;color:var(--ink);font-size:24px;font-weight:800}.brand span{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;color:#fff;background:var(--green);font-size:24px}.header-link{font-size:15px;color:var(--green);text-decoration:none;font-weight:700}
.hero{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center;padding-block:75px}.kicker{color:var(--green);font-weight:750;letter-spacing:.08em;margin:0}h1{font-size:clamp(46px,5.6vw,74px);letter-spacing:-.065em;line-height:1.17;margin:17px 0 22px}h1 em{font-style:normal;color:var(--green)}.subtitle{font-size:20px;color:var(--muted);max-width:470px}.security{display:inline-flex;gap:10px;background:#e5f3e8;color:#28604b;border-radius:9px;padding:10px 14px;margin-top:15px;font-size:15px;font-weight:650}
.tool{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:0 20px 55px #203f2612;scroll-margin-top:20px}.tool-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.label{font-size:14px;color:var(--green);font-weight:700;margin:0}h2{font-size:29px;margin:0;line-height:1.3}.tag{background:#e6f3e7;color:#286b4d;border-radius:20px;padding:5px 12px;font-size:14px}
.drop{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:3px;min-height:182px;background:#f4faf4;border:2px dashed #a7cdb2;border-radius:12px;cursor:pointer;color:var(--muted);font-size:14px;overflow-wrap:anywhere}.drop strong{font-size:19px;color:var(--ink);max-width:95%}.drop-icon{color:var(--green);font-size:35px;line-height:1.1}.options{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:22px 0}.options label{font-weight:700}.options small{display:block;color:var(--muted);font-weight:400}.target{display:flex;align-items:center;border:1px solid #c8d8ca;border-radius:8px;overflow:hidden;white-space:nowrap}.target input{width:90px;border:0;background:#fff;color:var(--ink);padding:12px;font:inherit}.target span{padding:0 12px;color:var(--muted);font-size:14px}
button,.download{display:flex;align-items:center;justify-content:center;gap:12px;border:0;border-radius:9px;background:var(--green);color:white;width:100%;padding:14px;font:inherit;font-weight:750;text-decoration:none;cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}button:hover:not(:disabled),.download:hover{background:#105c4b}.hint{font-size:14px;color:var(--muted);margin:12px 0 0}.message:not(:empty){margin:16px 0;background:#fff4dc;padding:10px 12px;border-radius:8px}.sizes{display:flex;gap:20px;align-items:center;background:#f2f7f1;padding:14px;border-radius:10px;margin-top:18px}.sizes div{flex:1}.sizes small,.sizes strong{display:block}.sizes small{color:var(--muted)}.sizes strong{font-size:22px}.download{margin-top:12px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;border-top:1px solid var(--line);padding-block:38px 52px}.steps article{display:flex;gap:15px}.steps b{color:#80aa91;font-size:15px}.steps h3{font-size:17px;margin:0}.steps p{color:var(--muted);font-size:15px;margin:3px 0 0}footer{border-top:1px solid var(--line);padding-block:23px;color:var(--muted);font-size:14px}footer span{margin-left:12px}
a:focus-visible,button:focus-visible,input:focus-visible,.drop:focus-within{outline:3px solid #43947e;outline-offset:3px}
@media(max-width:800px){.wrap{width:calc(100% - 36px)}.hero{grid-template-columns:1fr;gap:28px;padding-block:40px}.subtitle{font-size:17px}h1{font-size:clamp(39px,9vw,60px)}.tool{padding:22px}.steps{grid-template-columns:1fr;gap:18px;padding-block:28px}.head{height:68px}}

[hidden]{display:none!important}
.tabs{display:flex;gap:10px;margin-bottom:18px;padding:5px;background:#edf4ec;border-radius:10px}
.tabs .tab{flex:1;width:auto;background:transparent;color:#526b5f;padding:9px 10px;font-size:15px}
.tabs .tab.active{background:#fff;color:#156d56;box-shadow:0 1px 7px #203f2615}
.pdf-label{display:block;font-weight:700;margin:12px 0 6px}
select,.page-range{width:100%;font:inherit;border:1px solid #c8d8ca;border-radius:8px;padding:11px 12px;background:#fff;color:#1a2724}
#pdf-mode{margin-bottom:14px}
#pdf-panel .hint{margin:13px 0}
#pdf-result p{overflow-wrap:anywhere}

.support{display:grid;grid-template-columns:1.3fr 1fr;align-items:center;gap:35px;padding:35px;margin-bottom:45px;border:1px solid var(--line);background:#fff;border-radius:18px}
.support-copy p{margin:8px 0;color:var(--muted)}.support-copy .kicker{color:var(--green)}
.small-note{font-size:14px}.purchase-card{background:#f2f8f0;padding:20px;border-radius:12px}
.purchase-card strong{font-size:36px;line-height:1}.purchase-card span{color:var(--muted)}
.purchase-card p{margin:5px 0 12px;color:var(--muted)}
dialog{width:min(480px,calc(100% - 32px));border:0;border-radius:16px;padding:26px;color:var(--ink);box-shadow:0 20px 60px #0003}
dialog::backdrop{background:#0a211ba8}
.dialog-actions{display:flex;gap:10px;margin-top:20px}.dialog-actions button{flex:1}
.secondary{background:#edf3ed;color:var(--ink)}.secondary:hover:not(:disabled){background:#dfeade}
#payment-message:empty,#checkout-status:empty{display:none}#payment-message,#checkout-status{font-size:14px;color:var(--muted);overflow-wrap:anywhere}
#demo-close{margin-top:10px}
@media(max-width:800px){.support{grid-template-columns:1fr;gap:20px;padding:22px}}

.sample-button{background:transparent;color:var(--green);padding:8px;margin:4px 0 0;font-size:14px;font-weight:650;text-decoration:underline;text-underline-offset:4px}
.sample-button:hover:not(:disabled){background:#edf7ec}
.pro-info{color:#176951;background:#ecf7e9;padding:10px 12px;border-radius:8px;font-size:15px}.tabs .tab{min-width:0;font-size:14px}.tabs{flex-wrap:wrap}#batch-panel .drop{margin-top:14px}#batch-run{margin-top:14px}#batch-summary{overflow-wrap:anywhere}