:root{color-scheme:light;--paper: #f4f0e6;--paper-deep: #e7e0cf;--surface: #fffdf7;--ink: #172522;--muted: #58635f;--forest: #1e4b42;--forest-dark: #143a33;--gold: #d9aa45;--gold-soft: #f4dfae;--coral: #b8553f;--line: #d9d3c4;--shadow: 0 22px 60px rgba(37, 48, 43, .12);--radius-lg: 24px;--radius-md: 14px;font-family:Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,sans-serif;background:var(--paper);color:var(--ink)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:var(--paper);line-height:1.75}button,textarea,select{font:inherit}button,summary,.dropzone{-webkit-tap-highlight-color:transparent}button:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible,.dropzone:focus-within{outline:3px solid rgba(184,85,63,.38);outline-offset:3px}.site-header,main,footer{width:min(1120px,calc(100% - 40px));margin-inline:auto}.site-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:26px 0}.brand{display:inline-flex;align-items:center;gap:12px;color:inherit;text-decoration:none}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--forest);color:var(--gold-soft);font:800 22px/1 Georgia,serif;transform:rotate(-3deg)}.brand-symbol{background:transparent;overflow:hidden}.brand-symbol img{display:block;width:100%;height:100%}.brand b{display:block;font:800 15px/1.2 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.12em}.brand small{display:block;margin-top:4px;color:var(--muted);font-size:14px}.local-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid #bdd2c8;border-radius:999px;color:var(--forest);background:#edf5ee;font-size:14px;font-weight:700}.local-badge span{color:#4d9a70;font-size:14px}.hero{padding:78px 0 48px}.eyebrow,.step-label{margin:0 0 10px;color:var(--coral);font:800 14px/1.2 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.13em}.hero h1{max-width:920px;margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:clamp(42px,8vw,84px);line-height:1.12;letter-spacing:-.045em}.hero h1 span{color:var(--forest)}.hero-copy{max-width:720px;margin:28px 0 0;color:var(--muted);font-size:16px}.tool-shell{position:relative;padding:clamp(24px,5vw,50px);overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow)}.tool-shell:before{content:"";position:absolute;top:-90px;right:-70px;width:250px;height:250px;border:34px solid rgba(217,170,69,.16);border-radius:50%;pointer-events:none}.tool-heading-row,.file-meta,footer{display:flex;align-items:flex-start;justify-content:space-between;gap:24px}h2{margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:clamp(24px,4vw,36px);line-height:1.35}.text-button{padding:7px 0;border:0;border-bottom:1px solid currentColor;background:transparent;color:var(--forest);cursor:pointer;font-weight:700}#sourceText,#resultText{width:100%;border:1px solid #cbc4b3;border-radius:var(--radius-md);background:#fff;color:var(--ink);font-family:ui-monospace,SFMono-Regular,Consolas,BIZ UDPGothic,monospace;line-height:1.7;resize:vertical}#sourceText,#resultText{min-height:280px;padding:18px;font-size:15px}#sourceText::placeholder,#resultText::placeholder{color:#9a988f}#resultText{background:#f7f8f4}.repair-grid{display:grid;grid-template-columns:minmax(0,1fr) 42px minmax(0,1fr);align-items:start;margin-top:28px}.editor-panel{min-width:0}.editor-heading{display:flex;align-items:baseline;gap:10px;margin-bottom:10px}.editor-heading span{padding:3px 7px;border-radius:5px;background:var(--paper-deep);color:var(--muted);font:800 14px ui-monospace,monospace}.editor-heading label{font-size:14px;font-weight:800}.flow-arrow{display:grid;place-items:center;min-height:280px;color:var(--coral);font:700 24px/1 Georgia,serif}.primary-actions{display:flex;align-items:center;gap:10px;margin-top:14px;flex-wrap:wrap}.primary-button,.secondary-button,.copy-button{border-radius:10px;cursor:pointer;font-weight:800;transition:transform .15s ease,background .15s ease,border-color .15s ease}.primary-button{display:inline-flex;align-items:center;justify-content:space-between;gap:36px;min-width:240px;padding:14px 18px;border:1px solid var(--forest);background:var(--forest);color:#fff}.primary-button:hover{background:var(--forest-dark);transform:translateY(-1px)}.primary-button:disabled{opacity:.45;cursor:not-allowed;transform:none}.primary-button.compact{min-width:210px;margin-top:16px}.secondary-button{padding:14px 18px;border:1px solid var(--line);background:transparent;color:var(--ink)}.secondary-button:hover{border-color:var(--ink)}.shortcut{margin:8px 0 0;color:var(--muted);font-size:14px}.status{min-height:1.75em;margin:0;color:var(--forest);font-size:14px;font-weight:700}.result-actions{display:flex;align-items:center;gap:14px;margin-top:14px}.copy-button{min-width:104px;padding:9px 14px;border:1px solid var(--forest);background:transparent;color:var(--forest)}.copy-button:hover,.copy-button.copied{background:var(--forest);color:#fff}.copy-button:disabled{opacity:.42;cursor:not-allowed;background:transparent;color:var(--forest)}.result-copy{min-height:48px}.alternatives{margin-top:14px;border-top:1px solid var(--line)}.alternatives summary{padding:14px 2px 8px;cursor:pointer;color:var(--muted);font-size:14px;font-weight:700}.alternate-list{display:flex;gap:8px;flex-wrap:wrap;padding:4px 0 2px}.alternate-button{padding:8px 11px;border:1px solid var(--line);border-radius:8px;background:transparent;color:var(--ink);cursor:pointer;font-size:14px;font-weight:700}.alternate-button:hover{border-color:var(--forest);color:var(--forest)}.trust-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin:28px 0 72px;border-block:1px solid var(--line)}.trust-strip article{position:relative;padding:28px}.trust-strip article+article{border-left:1px solid var(--line)}.trust-strip span{position:absolute;top:28px;right:28px;color:#a7a090;font:700 14px ui-monospace,monospace}.trust-strip h3{margin:0 0 8px;font-size:15px}.trust-strip p{margin:0;color:var(--muted);font-size:14px}.file-tool{margin:0 0 84px}.file-tool>details{border:1px solid var(--line);border-radius:var(--radius-lg);background:#ebe4d5;overflow:hidden}.file-tool summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:28px 32px;cursor:pointer;list-style:none}.file-tool summary::-webkit-details-marker{display:none}.file-tool summary span:first-child{display:flex;align-items:center;gap:18px}.file-tool summary small{padding:5px 8px;border-radius:6px;background:var(--forest);color:#fff;font:700 14px ui-monospace,monospace}.file-tool summary strong{font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:20px}.summary-action{color:var(--forest);font-size:14px;font-weight:800}.file-tool-body{padding:0 32px 32px}.section-intro{max-width:720px;margin:0 0 20px;color:var(--muted);font-size:14px}.dropzone{display:grid;place-items:center;min-height:180px;padding:25px;border:2px dashed #a8a18f;border-radius:var(--radius-md);background:#ffffff73;cursor:pointer;text-align:center}.dropzone.dragging{border-color:var(--coral);background:#fff7e8}.dropzone input{position:absolute;width:1px;height:1px;opacity:0}.drop-icon{font:300 34px/1 Georgia,serif;color:var(--coral)}.dropzone strong{margin-top:8px}.dropzone small{margin-top:4px;color:var(--muted)}.file-result{margin-top:22px;padding:22px;border-radius:var(--radius-md);background:var(--surface)}.file-meta{justify-content:flex-start}.file-meta>div{min-width:210px}.file-meta small,.preview-box small{display:block;color:var(--muted);font-size:11px}.file-meta strong{display:block;margin-top:4px;word-break:break-word}.encoding-settings{display:flex;align-items:end;gap:14px;margin-top:22px}.encoding-settings label{display:grid;gap:7px;flex:1;color:var(--muted);font-size:14px}.encoding-settings select{width:100%;padding:11px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink)}.preview-box{margin-top:20px;padding:14px;border:1px solid var(--line);border-radius:9px;background:#fff}.preview-box pre{max-height:180px;margin:7px 0 0;overflow:auto;white-space:pre-wrap;word-break:break-all;font:12px/1.65 ui-monospace,monospace}.warning{margin:12px 0 0;font-size:14px;font-weight:700}.warning.safe{color:#347155}.warning.danger{color:var(--coral)}.guide{display:grid;grid-template-columns:.85fr 1.4fr;gap:60px;margin-bottom:90px}.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.guide-grid article{padding:24px;border-top:3px solid var(--forest);background:#ffffff6b}.guide-grid article+article{border-top-color:var(--coral)}.guide-kicker{margin:0 0 14px;font-size:14px;font-weight:800;letter-spacing:.08em}.guide-kicker.good{color:var(--forest)}.guide-kicker.bad{color:var(--coral)}.guide-grid h3{margin:0 0 10px;font-size:17px}.guide-grid article>p:last-child{margin:0;color:var(--muted);font-size:14px}.faq{max-width:820px;margin-bottom:90px}.faq h2{margin-bottom:24px}.faq details{border-top:1px solid var(--line)}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{padding:18px 4px;cursor:pointer;font-weight:800}.faq details p{margin:-5px 0 20px;color:var(--muted);font-size:14px}footer{align-items:end;padding:28px 0 42px;border-top:1px solid var(--line)}footer b{font:800 14px ui-monospace,monospace;letter-spacing:.14em}footer p{margin:5px 0 0;color:var(--muted);font-size:14px}footer nav{display:flex;flex:none;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:22px;color:var(--muted);font-size:14px}footer nav a,footer nav span{white-space:nowrap}footer nav a{color:inherit;text-decoration:none}footer nav a:hover{color:var(--forest);text-decoration:underline}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:780px){main{width:min(100% - 28px,1120px)}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:.01ms!important}}.split-page{--split-plum: #4d3e58;--split-plum-dark: #382b43;--split-teal: #4b7b7c;--split-coral: #d6654f;background:var(--paper)}.mini-nav{display:flex;flex-wrap:wrap;gap:18px;font-size:14px;font-weight:700}.mini-nav a{color:var(--muted);text-decoration:none}.mini-nav a:hover{color:var(--forest)}.split-hero{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:70px;padding:66px 0 56px}.split-hero h1{margin:0;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:clamp(50px,8.5vw,92px);line-height:1.05;letter-spacing:-.06em}.split-hero h1 span{color:var(--split-teal)}.split-hero>div:first-child>p:last-child{margin:25px 0 0;color:var(--muted);font-weight:700}.split-visual{display:flex;align-items:center;justify-content:flex-end;gap:22px;min-height:230px}.split-visual>span{color:var(--split-coral);font:36px Georgia,serif}.source-sheet{position:relative;width:150px;height:200px;border:2px solid var(--split-plum-dark);background:#fffdf8;box-shadow:10px 12px #4d3e581a;transform:rotate(-3deg)}.source-sheet b{position:absolute;top:24px;left:22px;padding:5px 9px;background:var(--split-coral);color:#fff;font:900 13px ui-monospace,monospace}.source-sheet i{position:absolute;left:22px;right:22px;height:2px;background:#cbc5b9}.source-sheet i:nth-of-type(1){top:92px}.source-sheet i:nth-of-type(2){top:116px}.source-sheet i:nth-of-type(3){top:140px}.cut-sheets{position:relative;width:166px;height:220px}.cut-sheets i{position:absolute;display:grid;place-items:end start;width:94px;height:125px;padding:12px;border:2px solid var(--split-plum);background:#fffdf8;color:var(--split-plum);font:900 12px ui-monospace,monospace;box-shadow:7px 8px #4d3e5812}.cut-sheets i:nth-child(1){top:3px;left:0;transform:rotate(-7deg)}.cut-sheets i:nth-child(2){top:43px;left:53px;transform:rotate(4deg)}.cut-sheets i:nth-child(3){top:89px;left:15px;transform:rotate(-1deg)}.split-tool{overflow:hidden;border:1px solid var(--line);border-radius:26px;background:var(--surface);box-shadow:var(--shadow)}.split-heading{display:flex;align-items:start;justify-content:space-between;gap:20px;padding:30px 36px}.local-processing{display:flex;align-items:center;gap:7px;margin:4px 0 0;padding:7px 12px;border:1px solid #bed4ca;border-radius:999px;background:#edf6f1;color:var(--forest);font-size:14px;font-weight:800}.local-processing span{color:#48a275;font-size:14px}.split-drop{padding:0 36px 36px}.split-drop label{display:grid;place-items:center;min-height:230px;padding:30px;border:2px dashed #999599;border-radius:18px;background:#f1ede7;cursor:pointer;text-align:center;transition:.16s ease}.split-drop label:hover,.split-drop.dragging label{border-color:var(--split-teal);background:#eef6f3}.split-drop input{position:absolute;width:1px;height:1px;opacity:0}.split-drop label>span{display:grid;place-items:center;width:56px;height:56px;border-radius:50%;background:var(--split-plum);color:#fff;font:300 31px/1 Georgia,serif}.split-drop strong{margin-top:15px;font-size:16px}.split-drop small{margin-top:4px;color:var(--muted)}.split-drop>p{min-height:1.6em;margin:10px 3px 0;color:var(--split-coral);font-size:14px;font-weight:800}.split-drop.has-file{padding-bottom:0}.split-drop.has-file label{display:none}.split-editor{border-top:1px solid var(--line)}.split-filebar{display:grid;grid-template-columns:50px minmax(0,1fr) auto;align-items:center;gap:14px;padding:18px 36px;background:var(--split-plum);color:#fff}.split-file-icon{display:grid;place-items:center;height:54px;border:1px solid rgba(255,255,255,.35);background:#ffffff14;font:900 14px ui-monospace,monospace}.split-filebar p{min-width:0;margin:0}.split-filebar strong,.split-filebar span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.split-filebar strong{font-size:14px}.split-filebar span{color:#cec4d4;font-size:14px}.split-filebar button{padding:8px 11px;border:1px solid rgba(255,255,255,.3);border-radius:8px;background:transparent;color:#fff;cursor:pointer;font-size:14px;font-weight:800}.selection-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 36px;border-bottom:1px solid var(--line)}.selection-bar p{margin:0;color:var(--muted);font-size:14px}.selection-bar strong{display:block}.selection-buttons{display:flex;gap:8px}.selection-buttons button{padding:8px 11px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--split-plum);cursor:pointer;font-size:14px;font-weight:800}.range-select{display:grid;grid-template-columns:minmax(150px,.55fr) 1fr;gap:16px 24px;padding:22px 36px;background:#eee8dc}.range-select label{color:var(--ink);font-size:14px;font-weight:800}.range-select label span{display:block;color:var(--muted);font-size:14px;font-weight:500}.range-select>div{display:flex;border:1px solid #c9c0b0;border-radius:9px;background:#fff;overflow:hidden}.range-select input{min-width:0;width:100%;padding:11px 13px;border:0;outline:0;font:700 14px ui-monospace,monospace}.range-select button{padding:9px 13px;border:0;background:var(--split-teal);color:#fff;cursor:pointer;font-size:14px;font-weight:900;white-space:nowrap}.range-select>p{grid-column:2;min-height:1.5em;margin:-11px 0 0;color:var(--split-coral);font-size:14px;font-weight:800}.select-help{margin:22px 36px 8px;color:var(--muted);font-size:14px}.split-pages{display:grid;grid-template-columns:repeat(auto-fill,minmax(145px,1fr));gap:12px;padding:8px 36px 32px}.split-page-card{position:relative;min-width:0;padding:9px;border:1px solid #d4cec2;border-radius:12px;background:#f2eee6;color:var(--ink);cursor:pointer;transition:.13s ease}.split-page-card:hover{transform:translateY(-2px);border-color:var(--split-teal)}.split-page-card.selected{border-color:var(--split-teal);box-shadow:inset 0 0 0 2px var(--split-teal);background:#eaf3ef}.selection-check{position:absolute;z-index:2;top:15px;right:15px;display:grid;place-items:center;width:25px;height:25px;border:2px solid #aaa69e;border-radius:50%;background:#fff;color:#fff;font-size:14px;font-weight:900}.selected .selection-check{border-color:var(--split-teal);background:var(--split-teal)}.split-preview{display:grid;place-items:center;height:190px;overflow:hidden;border:1px solid #ddd7ca;background:#dfe2df}.split-preview img{max-width:calc(100% - 15px);max-height:calc(100% - 15px);box-shadow:0 4px 13px #282d2b26}.split-page-card>strong{display:block;padding:8px 2px 1px;font-size:14px;text-align:left}.split-actions{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:28px 36px;background:var(--split-plum-dark);color:#fff}.split-actions article{display:grid;gap:15px;padding:22px;border:1px solid rgba(255,255,255,.17);border-radius:15px;background:#ffffff0f}.split-actions article>div>p{margin:0;color:#cfbfd8;font:800 14px ui-monospace,monospace;letter-spacing:.08em}.split-actions h3{margin:5px 0 3px;font-family:Yu Mincho,serif;font-size:19px}.split-actions article>div>span{color:#cfc6d4;font-size:14px}.split-actions label{display:grid;gap:5px;color:#cfc6d4;font-size:14px}.split-actions label>span{display:flex;align-items:center;border:1px solid rgba(255,255,255,.24);border-radius:7px;background:#0000001f}.split-actions input{min-width:0;width:100%;padding:9px 10px;border:0;outline:0;background:transparent;color:#fff}.split-actions label b{padding-right:10px}.split-actions article>button{display:flex;align-items:center;justify-content:space-between;min-height:45px;padding:11px 13px;border:0;border-radius:8px;background:var(--split-coral);color:#fff;cursor:pointer;font-weight:900}.split-actions .every-page-action>button{background:var(--split-teal)}.split-actions article>button:disabled{opacity:.4;cursor:default}.split-actions>p{grid-column:1 / -1;min-height:1.5em;margin:0;color:#f0d7a7;font-size:14px;font-weight:800}.merge-companion{display:flex;align-items:center;justify-content:space-between;gap:28px;margin:55px 0 85px;padding:26px 30px;border-radius:20px;background:#283b4b;color:#fff}.merge-companion .eyebrow{color:#f0d49d}.merge-companion h2{font-size:clamp(21px,3vw,29px)}.merge-companion p:last-child{margin:7px 0 0;color:#c5d0d6;font-size:14px}.merge-companion>a{display:flex;justify-content:space-between;gap:28px;min-width:210px;padding:12px 15px;border-radius:8px;background:#f0d49d;color:#283b4b;font-weight:900;text-decoration:none}.split-value{display:grid;grid-template-columns:.7fr 1.5fr;gap:60px;margin-bottom:85px}.split-value-grid{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--line)}.split-value article{padding:25px 20px}.split-value article+article{border-left:1px solid var(--line)}.split-value article>span{color:var(--split-teal);font:800 14px ui-monospace,monospace}.split-value h3{margin:14px 0 7px;font-size:15px}.split-value article p{margin:0;color:var(--muted);font-size:14px}.split-caution{display:grid;grid-template-columns:.55fr 1fr;gap:40px;margin-bottom:85px;padding:30px;border:1px solid var(--line);background:#ffffff73}.split-caution p{margin:0;color:var(--muted);font-size:14px}@media(max-width:820px){.split-hero{grid-template-columns:1fr;gap:35px}.split-visual{justify-content:flex-start}.split-value,.split-caution{grid-template-columns:1fr;gap:25px}}@media(max-width:620px){.mini-nav{display:none}.split-hero{padding:40px 0 44px}.split-hero h1{font-size:57px}.split-visual{transform:scale(.78);transform-origin:left center;margin-right:-90px}.split-heading{display:block;padding:24px 18px}.local-processing{display:inline-flex;margin-top:12px}.split-drop{padding:0 18px 24px}.split-drop label{min-height:205px}.split-filebar{grid-template-columns:42px minmax(0,1fr);padding:14px 18px}.split-filebar button{grid-column:2;justify-self:start}.selection-bar{padding:16px 18px}.range-select{grid-template-columns:1fr;padding:18px}.range-select>p{grid-column:1;margin-top:-9px}.select-help{margin-inline:18px}.split-pages{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding:7px 10px 23px}.split-preview{height:165px}.split-actions{grid-template-columns:1fr;padding:22px 16px}.split-actions>p{grid-column:1}.merge-companion{align-items:flex-start;flex-direction:column}.split-value-grid{grid-template-columns:1fr}.split-value article+article{border-left:0;border-top:1px solid var(--line)}}@media(max-width:620px){.split-page .split-hero{padding:4px 0 7px!important}.split-page .split-hero h1{font-size:24px!important}.split-page .split-hero>div:first-child>p:last-child{display:none}.split-page .split-tool{border-radius:9px}.split-page .split-heading{padding:6px 8px}.split-page .split-heading .step-label,.split-page .local-processing{display:none}.split-page .split-heading h2{font-size:15px}.split-page .split-drop{padding:0 7px 7px}.split-page .split-drop label{min-height:88px;padding:7px;border-radius:7px}.split-page .split-drop label>span{width:32px;height:32px}.split-page .split-drop strong{margin-top:4px;font-size:14px}.split-page .split-drop small{font-size:14px}.split-page .split-filebar,.split-page .selection-bar,.split-page .range-select{padding:6px}.split-page .select-help{margin:4px 7px;font-size:14px}.split-page .split-pages{padding:4px;gap:4px}.split-page .split-preview{height:110px}.split-page .split-actions{grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;padding:6px}.split-page .split-actions article{gap:4px;padding:6px}.split-page .split-actions h3{font-size:14px}.split-page .split-actions article>button{min-height:32px;padding:4px;font-size:14px}.split-page .merge-companion,.split-page .split-value,.split-page .split-caution{display:none}}@media(max-width:620px){.split-visual{display:none}}
