:root{color-scheme:light;--canvas:#f7f8fa;--paper:#fff;--ink:#232a34;--muted:#596475;--line:#dce1e8;--blue:#235bd8;--blue-hover:#1749bb;--tint:#edf3ff;--mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--canvas);font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;font-size:16px;line-height:1.65}button,input,select{font:inherit}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{cursor:not-allowed}a,button,input,select,summary{touch-action:manipulation;-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px}[hidden]{display:none!important}.container{width:min(1160px,calc(100% - 72px));margin-inline:auto}.site-header{min-height:88px;display:flex;justify-content:space-between;align-items:center;gap:24px;border-bottom:1px solid var(--line)}.brand{font-size:24px;font-weight:750;line-height:1.2;letter-spacing:-1px;white-space:nowrap}.brand>span{color:var(--blue)}nav{display:flex;align-items:center;gap:23px;font-size:13px;font-weight:550}nav a:hover,nav a[aria-current=page]{color:var(--blue)}.language-button{color:var(--ink);background:transparent;border:1px solid #cbd2dd;border-radius:6px;padding:8px 13px;min-height:42px;min-width:68px;font-size:14px}.language-button:hover{background:var(--paper);border-color:var(--muted)}.skip-link{position:absolute;top:-100px;left:20px;padding:12px 20px;z-index:10;background:var(--paper)}.skip-link:focus{top:14px}.sr-only,.file-input{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);border:0}.intro{padding:45px 0 30px}.eyebrow{font-family:var(--mono);font-size:11px;line-height:1.6;font-weight:500;letter-spacing:.09em;margin:0 0 10px;color:var(--muted)}h1{font-size:clamp(33px,4.1vw,52px);line-height:1.12;letter-spacing:-.045em;margin:0 0 17px;font-weight:720;max-width:1020px}.intro-text{color:var(--muted);max-width:740px;margin:0 0 19px;line-height:1.7}.privacy-line{display:flex;align-items:flex-start;gap:8px;margin:0;font-size:13px;font-weight:600;color:#40516a}.privacy-line svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.7;flex-shrink:0;margin-top:2px}.limit-line{color:var(--muted);font-size:12px;max-width:850px;margin:10px 0 0;line-height:1.8}.limit-line strong{font-weight:600;color:var(--ink);margin-right:4px}h2{font-size:23px;line-height:1.3;letter-spacing:-.025em;font-weight:650;margin:0}h3{font-size:18px;line-height:1.4;font-weight:600;letter-spacing:-.015em;margin:0 0 7px}
.tool-directory{display:grid;grid-template-columns:1.1fr 1fr;border:1px solid var(--line);border-radius:10px;background:var(--paper);overflow:hidden}.tool-entry{position:relative;display:flex;flex-direction:column;padding:29px 32px;transition:background .2s;min-width:0}.tool-entry:hover{background:#f9fbff}.tool-entry h2{font-size:20px;margin:12px 0 6px}.tool-entry p{font-size:14px;color:var(--muted);margin:0 0 15px;max-width:340px}.tool-entry .eyebrow{font-size:10px}.featured-tool{border-right:1px solid var(--line);padding:39px}.featured-tool .format-display{margin:55px 0 13px;font-size:clamp(32px,3.8vw,51px)}.format-display{font-family:var(--mono);font-size:32px;line-height:1.25;letter-spacing:-2px;font-weight:500;display:block}.format-display span{color:var(--muted)}.entry-arrow{display:flex;justify-content:space-between;gap:10px;font-size:13px;font-weight:600;color:var(--blue);margin-top:auto;max-width:220px}.entry-arrow>span:last-child{font-size:20px}.secondary-tools .tool-entry+.tool-entry{border-top:1px solid var(--line)}.about{display:grid;grid-template-columns:1fr 1.3fr;gap:60px;padding-top:57px}.about p{color:var(--muted);margin:0;max-width:620px;font-size:16px}.about h2{max-width:280px;font-size:28px}
.tool-workspace{display:grid;grid-template-columns:.92fr 1.08fr;border:1px solid var(--line);border-radius:10px;background:var(--paper);overflow:clip}.input-panel,.results-panel{min-width:0;padding:27px}.input-panel{border-right:1px solid var(--line)}.input-panel>.eyebrow,.results-heading .eyebrow{font-size:10px;margin-bottom:5px}.drop-zone{margin:24px 0 12px;padding:25px 15px 18px;border:1px dashed #aebbcf;border-radius:7px;text-align:center;background:#fafbfd;transition:background .15s,border-color .15s}.drop-zone.is-dragging{border:2px solid var(--blue);background:var(--tint);padding:24px 14px 17px}.drop-zone.is-disabled{opacity:.65}.drop-icon{width:43px;height:43px;stroke:#74849b;stroke-width:1.5;display:block;margin:0 auto 12px}.drop-zone h3{font-size:18px;margin-bottom:5px}.drop-zone>p{font-size:13px;color:var(--muted);margin:0 0 16px}.drop-zone>p.formats{font-family:var(--mono);font-size:10px;margin:13px 0 0;letter-spacing:0}.hint{font-size:12px;color:var(--muted);line-height:1.75;margin:10px 0 0}.primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;gap:15px;min-height:47px;padding:11px 17px;border:1px solid transparent;border-radius:6px;font-size:14px;font-weight:600;line-height:1.5;transition:background .15s}.primary-button{background:var(--blue);color:#fff}.primary-button:hover{background:var(--blue-hover)}.primary-button:disabled{background:#e8ecf2;color:#697485}.secondary-button{background:var(--paper);border-color:#c8d0dd;color:var(--ink)}.secondary-button:hover{background:var(--canvas)}.secondary-button:disabled{color:#737d8e}.text-button{background:transparent;border:0;color:var(--muted);font-size:12px;min-height:40px;padding:8px}.text-button:hover{text-decoration:underline;color:var(--ink)}.text-button:disabled{color:#737d8e;text-decoration:none}fieldset{border:0;padding:0;margin:10px 0 23px;min-width:0}.setting{padding-top:21px}.setting>label,.setting-heading label{font-size:13px;font-weight:600}.setting-heading{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:13px}.setting-heading output{font-family:var(--mono);font-size:12px;color:var(--muted)}input[type=range]{display:block;accent-color:var(--blue);width:100%;height:22px;margin:0;cursor:pointer}input[type=range]:disabled{accent-color:#7b8799;cursor:not-allowed}select{display:block;width:100%;border:1px solid #c8d0dd;background:var(--paper);color:var(--ink);border-radius:5px;min-height:44px;padding:8px 11px;margin-top:10px;font-size:14px}.main-actions{display:flex;gap:9px;align-items:center;flex-wrap:wrap}.main-actions .primary-button{flex:1}.notice{font-size:13px;min-height:25px;margin:12px 0 0;color:#324d78;overflow-wrap:anywhere}.notice.error{color:#a32929}progress{display:block;accent-color:var(--blue);width:100%;height:7px;margin:13px 0}.local-note{border-top:1px solid var(--line);padding-top:16px;font-size:11px;color:var(--muted);line-height:1.8;margin:17px 0 0}.results-heading{display:flex;align-items:flex-start;gap:12px;justify-content:space-between}.results-heading h2{max-width:370px;font-size:22px}.file-count{font-family:var(--mono);font-size:12px;min-width:28px;text-align:center;color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:3px 7px;margin-top:20px}.empty-state{padding:61px 0 65px;max-width:380px;min-height:420px}.empty-format{font-family:var(--mono);font-size:33px;letter-spacing:-2px;line-height:1.3;display:block;margin-bottom:23px;color:#66768d}.empty-format span{color:#99a4b4}.empty-state h3{font-size:20px;margin-bottom:10px}.empty-state p{font-size:14px;color:var(--muted);line-height:1.8;margin:0 0 17px}.empty-privacy{font-family:var(--mono);font-size:11px;color:var(--muted)}.batch-summary{padding:20px 0 18px;margin-top:17px;border-top:1px solid var(--line)}.batch-summary>p:first-child{font-size:12px;font-family:var(--mono);color:var(--muted);margin:0 0 13px}.totals{display:flex;align-items:center;gap:23px}.totals>div{display:flex;flex-direction:column}.totals span{font-size:11px;color:var(--muted)}.totals strong{font-family:var(--mono);font-size:21px;font-weight:500;line-height:1.5;letter-spacing:-.7px}.file-list{list-style:none;margin:0;padding:0}.file-row{padding:20px 0;border-top:1px solid var(--line)}.file-head{display:flex;align-items:flex-start;gap:12px;min-width:0}.thumbnail{width:55px;height:55px;flex-shrink:0;background:repeating-conic-gradient(#e7ebf0 0 25%,#f6f7f9 0 50%) 0/12px 12px;border:1px solid var(--line);border-radius:4px;overflow:hidden;display:flex;align-items:center;justify-content:center}.thumbnail img{max-width:100%;max-height:100%;object-fit:contain}.thumbnail>span{font-family:var(--mono);font-size:10px;color:var(--muted);background:var(--paper);padding:3px}.file-title{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}.file-title strong{font-size:13px;font-weight:600;overflow-wrap:anywhere;line-height:1.5}.file-title>span{font-family:var(--mono);font-size:10px;color:var(--muted);line-height:1.7;overflow-wrap:anywhere}.file-status{font-family:var(--mono);font-size:10px;padding:2px 6px;border-radius:3px;border:1px solid var(--line);white-space:nowrap;flex-shrink:0;color:var(--muted)}.file-status.done{background:var(--tint);border-color:#dbe5fc;color:#254e93}.file-status.failed{background:#fdf0f0;color:#983c3c;border-color:#f0dada}.file-status.processing{background:#f8f2e6;border-color:#e9dfc8;color:#73541d}.size-comparison{display:flex;gap:7px 10px;align-items:center;flex-wrap:wrap;margin-top:15px;font-size:11px;color:var(--muted)}.size-comparison strong{font-weight:600;color:var(--ink)}.size-change{font-family:var(--mono);font-size:10px;color:#315586}.size-change.grew{color:#76551d}.row-note{font-size:11px;color:var(--muted);margin:10px 0 0;line-height:1.8}.row-error{font-size:12px;color:#983c3c;line-height:1.8;margin:12px 0 0}.row-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:10px}.row-button{font-size:12px;font-weight:550;background:#fff;border:1px solid #c8d0dd;border-radius:4px;padding:8px 12px;min-height:38px;color:var(--ink)}.row-button:hover{background:var(--canvas)}.row-button:disabled{color:#737d8e}.zip-button{width:100%;margin-top:18px}.privacy-detail p{margin:17px 0 0;color:var(--muted);font-size:12px;line-height:1.8;max-width:900px}
.info-section{margin-top:85px;display:grid;grid-template-columns:.85fr 1.15fr;gap:75px}.section-heading .eyebrow{margin-bottom:14px}.section-heading h2{font-size:clamp(28px,3vw,36px);line-height:1.2;letter-spacing:-.04em;max-width:380px}.steps{list-style:none;padding:0;margin:0}.steps li{display:flex;gap:25px;padding:21px 0;border-top:1px solid var(--line)}.steps li:first-child{padding-top:0;border-top:0}.step-number{font-family:var(--mono);font-size:13px;color:var(--muted);margin-top:3px}.steps p{font-size:14px;color:var(--muted);margin:0;line-height:1.8}.faq-section{border-top:1px solid var(--line);padding-top:61px;margin-bottom:70px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list details:first-child{border-top:1px solid var(--line)}.faq-list summary{cursor:pointer;list-style:none;position:relative;font-size:14px;font-weight:550;padding:19px 30px 19px 0;line-height:1.7}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary::after{content:'+';position:absolute;right:1px;top:17px;font-family:var(--mono);font-size:19px;color:var(--muted)}.faq-list details[open] summary::after{content:'−'}.faq-list p{font-size:13px;color:var(--muted);line-height:1.9;margin:0 20px 20px 0}.related{border-top:1px solid var(--line);padding-top:25px;margin-bottom:55px;display:flex;gap:25px;justify-content:space-between;align-items:center}.related h2{font-size:20px}.related>div{display:flex;gap:25px;font-size:13px;color:var(--blue)}.site-footer{border-top:1px solid var(--line);padding-top:27px;padding-bottom:35px;display:flex;justify-content:space-between;align-items:flex-end;gap:25px}.site-footer .brand{font-size:21px}.site-footer p{font-size:12px;color:var(--muted);margin:9px 0 0;max-width:480px}.site-footer p.family{font-size:11px}.footer-links{text-align:right;max-width:290px}.footer-links a{font-size:12px;color:var(--muted);text-decoration:underline;text-underline-offset:3px}.noscript-note{padding:20px;text-align:center;background:#fff1dd}
@media(max-width:1000px){nav{gap:17px}.nav-tool{display:none}.container{width:calc(100% - 44px)}.input-panel,.results-panel{padding:23px}.info-section{gap:40px}.featured-tool{padding:30px}.tool-entry{padding:25px}.featured-tool .format-display{font-size:36px}}
@media(max-width:740px){.container{width:calc(100% - 32px)}.site-header{min-height:74px;gap:12px}.brand{font-size:22px}nav{gap:16px}.intro{padding:31px 0 25px}h1{font-size:clamp(32px,7.7vw,46px)}.intro>.eyebrow{font-size:9px;letter-spacing:.065em}.intro-text{font-size:14px}.privacy-line{font-size:12px}.limit-line{font-size:11px}.limit-line strong{display:block}.tool-directory{grid-template-columns:1fr}.featured-tool{border-right:0;border-bottom:1px solid var(--line);padding:27px}.featured-tool .format-display{margin:22px 0 7px;font-size:37px}.tool-entry{padding:24px 27px}.tool-entry h2{font-size:19px}.format-display{font-size:29px}.about{grid-template-columns:1fr;gap:17px;padding-top:34px}.about h2{font-size:26px;max-width:none}.about p{font-size:14px}.tool-workspace{grid-template-columns:1fr}.input-panel,.results-panel{padding:23px 20px}.input-panel{border-right:0;border-bottom:1px solid var(--line)}.drop-zone{padding:22px 12px 17px}.drop-zone.is-dragging{padding:21px 11px 16px}.results-heading h2{font-size:20px}.empty-state{padding:38px 0 30px;min-height:270px}.totals{gap:18px}.totals strong{font-size:19px}.thumbnail{width:45px;height:45px}.file-head{gap:9px}.file-status{font-size:9px;padding:2px 5px}.file-title strong{font-size:12px}.row-button{font-size:11px;padding:8px 10px}.info-section{grid-template-columns:1fr;gap:32px;margin-top:57px}.section-heading h2{font-size:29px}.steps li{gap:20px}.faq-section{padding-top:43px;margin-bottom:45px}.related{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:40px}.related>div{gap:20px}.site-footer{flex-direction:column;align-items:flex-start;gap:15px}.footer-links{text-align:left;max-width:none}}
@media(max-width:360px){.container{width:calc(100% - 24px)}.input-panel,.results-panel{padding:22px 15px}.file-head{flex-wrap:wrap}.file-status{margin-left:54px;margin-top:-6px}.file-title{flex-basis:calc(100% - 60px)}.main-actions{gap:6px}.main-actions .primary-button{padding:11px 12px}.related>div{flex-wrap:wrap}.format-display,.featured-tool .format-display{font-size:32px}.tool-entry{padding:24px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}
.compare-section{border-top:1px solid var(--line);padding-top:61px}
.compare-table-wrap{overflow-x:auto}
.compare-table{width:100%;min-width:430px;border-collapse:collapse;font-size:14px}
.compare-table th,.compare-table td{padding:13px 14px;border-bottom:1px solid var(--line)}
.compare-table thead th{font-size:12px;color:var(--muted);font-weight:600;text-align:center;white-space:nowrap}
.compare-table thead th:first-child{text-align:left}
.compare-table tbody th{text-align:left;font-weight:550;font-size:13px}
.compare-table tbody td{text-align:center;font-size:17px}
.compare-table .yes{color:var(--blue);font-weight:700}
.compare-table .no{color:#b04a4a}
.compare-table .na{color:var(--muted)}
@media(max-width:740px){.compare-section{padding-top:43px}}