:root{color-scheme:light;--bg: #fbfbf8;--bg-muted: #f2f5f3;--surface: #ffffff;--surface-strong: #f7f8f5;--text: #111827;--muted: #4b5563;--soft: #6b7280;--line: #d9e2de;--line-strong: #aebdb8;--accent: #006b63;--accent-dark: #004f49;--accent-soft: #e4f5f1;--pdf: #e53935;--warning: #a65f00;--warning-soft: #fff8e7;--danger: #b42318;--radius: 6px;--header-height: 68px;--shell: 1120px;font-family:Hiragino Sans,Yu Gothic,YuGothic,Noto Sans JP,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}[hidden]{display:none!important}html{background:var(--bg);color:var(--text);scroll-behavior:smooth}body{margin:0;min-width:320px;background:var(--bg);color:var(--text);font-size:16px;line-height:1.65}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.56}:focus-visible{outline:3px solid rgba(0,107,99,.28);outline-offset:3px}h1,h2,h3,p{overflow-wrap:anywhere}h1,h2,h3{line-height:1.18;letter-spacing:0}.site-header{position:sticky;top:0;z-index:20;min-height:var(--header-height);display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:28px;padding:12px max(24px,calc((100vw - var(--shell)) / 2));border-bottom:1px solid rgba(217,226,222,.92);background:#fbfbf8f0;backdrop-filter:blur(18px)}.brand-link,.footer-brand{min-height:44px;display:inline-flex;align-items:center;gap:10px;font-weight:800}.brand-mark{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:var(--radius);background:var(--pdf);color:#fff;font-size:.72rem;font-weight:900;letter-spacing:0}.brand-text{font-size:1.16rem;font-weight:900}.site-nav{display:flex;justify-content:flex-end;gap:24px;color:var(--muted);font-size:.94rem;font-weight:700}.site-nav a,.header-contact{min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center}.site-nav a{flex:0 0 auto;border-bottom:2px solid transparent;white-space:nowrap}.site-nav a:hover,.footer-groups a:hover,.footer-legal a:hover,.header-contact:hover{color:var(--accent-dark)}.site-nav a:hover{border-bottom-color:var(--accent)}.header-contact{color:var(--text);font-size:.9rem;font-weight:800;white-space:nowrap}.header-contact:after{content:"";width:5px;height:5px;margin-left:8px;border-top:2px solid currentColor;border-right:2px solid currentColor;transform:rotate(45deg)}.section-shell{width:min(var(--shell),calc(100% - 48px));margin:0 auto}.home-hero{min-height:620px;display:grid;grid-template-columns:minmax(0,.86fr) minmax(360px,1.14fr);align-items:center;gap:72px;padding:76px max(24px,calc((100vw - var(--shell)) / 2)) 88px;border-bottom:1px solid var(--line)}.home-hero-copy h1{margin:0;font-size:4.2rem;font-weight:900}.home-hero-copy p{max-width:31rem;margin:22px 0 0;color:var(--muted);font-size:1.22rem}.hero-actions,.panel-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:30px}.primary-action,.secondary-action{min-height:46px;display:inline-flex;align-items:center;justify-content:center;border:1px solid transparent;border-radius:var(--radius);padding:10px 18px;font-weight:800;line-height:1.2;transition:transform .16s ease,border-color .16s ease,background .16s ease,color .16s ease}.primary-action{background:var(--accent);color:#fff}.secondary-action{border-color:var(--line-strong);background:transparent;color:var(--text)}.primary-action:hover,.secondary-action:hover,.download-action:hover{transform:translateY(-1px)}.secondary-action:hover{border-color:var(--accent);color:var(--accent-dark)}.hero-visual{display:grid;grid-template-columns:210px minmax(0,1fr);gap:34px;align-items:center}.document-stack{position:relative;width:210px;height:280px}.document-stack span,.document-stack strong{position:absolute;inset:0;display:grid;place-items:center;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}.document-stack span:first-child{transform:translate(-16px,16px) rotate(-5deg);background:var(--bg-muted)}.document-stack span:nth-child(2){transform:translate(14px,10px) rotate(4deg);background:#fff3f1}.document-stack strong{color:var(--pdf);font-size:3rem;font-weight:900;letter-spacing:0}.quick-tool-list{display:grid;border-top:1px solid var(--line)}.quick-tool-list a{min-height:54px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:13px 0;border-bottom:1px solid var(--line);color:var(--text);font-weight:800}.quick-tool-list a:after,.tool-card:after{content:">";color:var(--accent);font-weight:900}.quick-tool-list a:hover,.tool-card:hover{color:var(--accent-dark)}.breadcrumb{min-height:44px;width:min(var(--shell),calc(100% - 48px));margin:18px auto 0;padding:0;display:flex;flex-wrap:wrap;align-items:center;gap:8px;color:var(--soft);font-size:.88rem;font-weight:700}.breadcrumb-narrow{width:min(820px,calc(100% - 48px))}.breadcrumb a{min-height:44px;display:inline-flex;align-items:center;color:var(--accent-dark)}.breadcrumb span[aria-current=page]{color:var(--muted)}.breadcrumb+.tool-hero{padding-top:20px}.content-band{padding:74px 0;border-top:1px solid var(--line);background:var(--bg)}.muted-band{background:var(--bg-muted)}.content-band h2,.legal-shell h1{margin:0 0 24px;font-size:2rem}.dev-notice{padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-muted);color:var(--text)}.notice-shell{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:18px;align-items:center}.notice-shell h2,.notice-shell p{margin:0}.notice-shell h2{color:var(--accent-dark);font-size:1rem}.notice-shell a{min-height:44px;display:inline-flex;align-items:center;color:var(--accent-dark);font-weight:800;text-decoration:underline;text-underline-offset:4px}.group-list{display:grid;gap:54px}.tool-group{display:grid;grid-template-columns:210px minmax(0,1fr);gap:36px}.group-heading h3{margin:0;font-size:1.34rem}.group-heading p,.tool-card p,.legal-lead{color:var(--muted)}.tool-card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:30px;border-top:1px solid var(--line)}.tool-card-grid.compact{grid-template-columns:repeat(3,minmax(0,1fr))}.tool-card{min-height:118px;display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-rows:auto auto 1fr;gap:4px 14px;padding:18px 0;border-bottom:1px solid var(--line)}.tool-card span{font-size:1.04rem;font-weight:900}.tool-card small{color:var(--accent-dark);font-weight:800;grid-column:1}.tool-card p{grid-column:1 / -1;margin:4px 0 0;font-size:.94rem}.tool-card:after{grid-column:2;grid-row:1}.trust-grid,.two-column,.support-grid,.content-note-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.78fr);gap:54px}.content-note-grid p{max-width:38rem;margin:0;color:var(--muted)}.content-link-list{display:grid;border-top:1px solid var(--line)}.content-link-list a{min-height:82px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 16px;align-content:center;padding:14px 0;border-bottom:1px solid var(--line)}.content-link-list a:after{content:">";grid-column:2;grid-row:1;color:var(--accent);font-weight:900}.content-link-list span{font-weight:900}.content-link-list small{grid-column:1 / -1;color:var(--muted);font-size:.92rem}.content-link-list a:hover{color:var(--accent-dark)}.check-list,.warning-list,.step-list{margin:0;padding-left:1.2rem}.check-list li,.warning-list li,.step-list li{margin:0 0 10px}.tool-hero{width:min(var(--shell),calc(100% - 48px));min-height:auto;display:grid;grid-template-columns:minmax(330px,.76fr) minmax(430px,1fr);gap:56px;align-items:start;margin:0 auto;padding:44px 0 70px}.tool-copy{position:sticky;top:calc(var(--header-height) + 34px);padding-top:8px}.tool-copy h1{margin:0;font-size:3.05rem;font-weight:900;overflow-wrap:anywhere;text-wrap:balance;word-break:normal}.h1-part{display:inline-block}.hero-lead{max-width:35rem;margin:18px 0 0;color:var(--muted);font-size:1.1rem}.cross-tool-note{max-width:35rem;margin:18px 0 0;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--muted);font-size:.94rem}.cross-tool-note a,.result-guidance a{color:var(--accent-dark);font-weight:900;text-decoration:underline;text-underline-offset:4px}.benefit-strip{display:grid;gap:0;margin:34px 0 0;padding:0;border-top:1px solid var(--line);list-style:none}.benefit-strip li{min-height:42px;display:flex;align-items:center;border-bottom:1px solid var(--line);color:var(--accent-dark);font-size:.9rem;font-weight:800}.benefit-strip li:before{content:"";width:7px;height:7px;margin-right:10px;border-radius:999px;background:var(--accent)}.tool-panel{padding:0 0 0 42px;border-left:1px solid var(--line)}.tool-panel[data-tool-id=pdf-to-jpg],.tool-panel[data-tool-id=pdf-to-png]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:20px;align-items:start}.tool-panel[data-tool-id=pdf-to-jpg]>.panel-status,.tool-panel[data-tool-id=pdf-to-jpg]>.drop-zone,.tool-panel[data-tool-id=pdf-to-jpg]>.file-list,.tool-panel[data-tool-id=pdf-to-jpg]>.range-field,.tool-panel[data-tool-id=pdf-to-jpg]>.panel-actions,.tool-panel[data-tool-id=pdf-to-jpg]>.progress-panel,.tool-panel[data-tool-id=pdf-to-jpg]>.result-box,.tool-panel[data-tool-id=pdf-to-png]>.panel-status,.tool-panel[data-tool-id=pdf-to-png]>.drop-zone,.tool-panel[data-tool-id=pdf-to-png]>.file-list,.tool-panel[data-tool-id=pdf-to-png]>.range-field,.tool-panel[data-tool-id=pdf-to-png]>.panel-actions,.tool-panel[data-tool-id=pdf-to-png]>.progress-panel,.tool-panel[data-tool-id=pdf-to-png]>.result-box{grid-column:1 / 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var(--line-strong);border-radius:var(--radius);background:#ffffff94;text-align:center;transition:border-color .16s ease,background .16s ease}.drop-zone.is-dragging{border-color:var(--accent);background:var(--accent-soft)}.drop-zone:focus-within{border-color:var(--accent)}.drop-zone.is-disabled{cursor:not-allowed;border-style:solid;background:var(--surface-strong);color:var(--muted)}.drop-zone input{position:absolute;inset:0;width:100%;height:100%;opacity:0}.drop-icon{width:54px;height:70px;border:2px solid var(--accent);border-radius:var(--radius);background:linear-gradient(135deg,#fff 0 72%,var(--accent-soft) 72% 100%)}.drop-title{font-size:1.28rem;font-weight:900}.drop-help{max-width:32rem;color:var(--muted);font-size:.94rem}.file-list{min-height:64px;margin-top:16px;padding:12px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.file-list p{margin:0;color:var(--muted)}.file-list ul{margin:0;padding:0;list-style:none}.file-list 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input:checked+span{color:var(--accent-dark)}.limit-note{color:var(--muted);font-size:.9rem;font-weight:700}.cancel-action{color:var(--danger)}.progress-panel{display:grid;gap:8px;margin-top:18px;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.progress-line{height:8px;overflow:hidden;border-radius:999px;background:#cfe7e2}.progress-line span{display:block;height:100%;border-radius:inherit;background:var(--accent);transition:width .18s ease}.progress-panel p{margin:0;color:var(--accent-dark);font-size:.92rem;font-weight:800}.result-box{margin-top:18px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.result-box h2{margin:0 0 8px;font-size:1.1rem}.result-box p{margin:0;color:var(--muted)}.download-area{display:grid;gap:8px;margin-top:14px}.download-action{width:fit-content;min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:10px 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var(--line)}.legal-shell h2{margin:0 0 12px;font-size:1.35rem}.legal-shell p{color:var(--muted)}.legal-shell a{min-height:32px;display:inline-flex;align-items:center;color:var(--accent-dark);font-weight:800;text-decoration:underline;text-underline-offset:3px}.legal-shell a:hover{color:var(--accent)}.benchmark-hero{padding:52px 0 64px;border-bottom:1px solid var(--line)}.benchmark-hero h1{max-width:840px;margin:0;font-size:3rem;font-weight:900}.benchmark-hero p{max-width:760px;margin:18px 0 0;color:var(--muted);font-size:1.08rem}.benchmark-file-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:34px;border-top:1px solid var(--line)}.benchmark-file{min-height:156px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:6px 14px;padding:20px 0;border-bottom:1px solid var(--line)}.benchmark-file span{align-self:start;min-width:54px;display:inline-flex;justify-content:center;border:1px solid var(--line-strong);border-radius:var(--radius);padding:4px 8px;color:var(--accent-dark);font-size:.78rem;font-weight:900}.benchmark-file strong{font-size:1.02rem;font-weight:900}.benchmark-file small{color:var(--soft);font-weight:800}.benchmark-file p{grid-column:2 / -1;margin:0;color:var(--muted);font-size:.94rem}.benchmark-table-wrap{overflow-x:auto;border-top:1px solid var(--line)}.benchmark-measurement-note{max-width:860px;margin:-6px 0 22px;color:var(--muted);font-size:.98rem;line-height:1.8}.benchmark-table{width:100%;min-width:920px;border-collapse:collapse;font-size:.95rem}.benchmark-table th,.benchmark-table td{border-bottom:1px solid var(--line);padding:15px 14px;text-align:left;vertical-align:top}.benchmark-table th{color:var(--accent-dark);font-weight:900}.benchmark-table td:first-child{font-weight:800}.benchmark-visual-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(320px,1fr);gap:44px;align-items:center}.benchmark-visual-grid p{color:var(--muted)}.benchmark-visual-grid img{width:100%;border:1px solid var(--line);border-radius:var(--radius);background:#fff}.benchmark-screenshot-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:34px}.benchmark-screenshot-grid figure{margin:0}.benchmark-screenshot-grid img{width:100%;aspect-ratio:4 / 3;object-fit:contain;border:1px solid var(--line);border-radius:var(--radius);background:#fff}.benchmark-screenshot-grid figcaption{display:grid;gap:4px;padding-top:12px}.benchmark-screenshot-grid strong{color:var(--accent-dark);font-weight:900}.benchmark-screenshot-grid span{color:var(--muted);font-size:.94rem}.site-footer{border-top:1px solid #23312f;background:#111827;color:#e5e7eb}.footer-shell{width:min(var(--shell),calc(100% - 48px));margin:0 auto;padding:48px 0;display:grid;gap:30px}.footer-shell p,.footer-groups a,.footer-legal a{color:#cbd5e1}.footer-groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:22px}.footer-groups h2{margin:0 0 10px;color:#fff;font-size:1rem}.footer-groups a,.footer-legal a{min-height:44px;display:flex;align-items:center;font-size:.92rem}.footer-legal{display:flex;flex-wrap:wrap;gap:16px;border-top:1px solid rgba(255,255,255,.12);padding-top:20px}@media(max-width:920px){:root{--header-height: 116px}.site-header{grid-template-columns:1fr;row-gap:6px;padding:12px 20px}.header-contact{display:none}.site-nav{grid-column:1 / -1;justify-content:flex-start;gap:22px;overflow-x:auto}.breadcrumb{width:min(var(--shell),calc(100% - 40px));margin-top:14px}.breadcrumb-narrow{width:min(820px,calc(100% - 40px))}.home-hero,.tool-hero{grid-template-columns:1fr;gap:38px}.home-hero{min-height:auto;padding:50px 20px 64px}.home-hero-copy h1{font-size:3.15rem}.benchmark-hero h1{font-size:2.55rem}.tool-hero{width:min(var(--shell),calc(100% - 40px));padding:34px 0 58px}.tool-copy{position:static}.tool-copy h1{font-size:2.55rem;overflow-wrap:anywhere;word-break:normal}.tool-panel{padding-left:0;border-left:0}.hero-visual,.tool-group,.trust-grid,.two-column,.support-grid,.content-note-grid{grid-template-columns:1fr}.document-stack{width:180px;height:230px}.tool-card-grid,.tool-card-grid.compact,.footer-groups,.notice-shell,.password-grid,.benchmark-file-grid,.benchmark-visual-grid,.benchmark-screenshot-grid{grid-template-columns:1fr}}@media(max-width:560px){:root{--header-height: 112px}.site-header{row-gap:6px}.brand-text{font-size:1.08rem}.site-nav{gap:18px;font-size:.9rem}.section-shell,.footer-shell,.breadcrumb,.tool-hero{width:min(100% - 40px,var(--shell))}.breadcrumb+.tool-hero{padding-top:14px}.home-hero{padding-top:42px}.home-hero-copy h1{font-size:2.56rem}.benchmark-hero h1{font-size:1.92rem}.home-hero-copy p{font-size:1.05rem}.hero-actions,.panel-actions{gap:10px}.primary-action,.secondary-action{min-height:44px;padding:9px 14px}.tool-hero{gap:26px;padding-bottom:46px}.tool-panel[data-tool-id=pdf-to-jpg],.tool-panel[data-tool-id=pdf-to-png]{display:block}.tool-copy h1{font-size:2.14rem}.hero-lead{font-size:1.02rem;line-height:1.58}.benefit-strip{margin-top:20px}.drop-zone{min-height:174px;gap:8px;padding:22px 18px}.drop-icon{width:42px;height:54px}.drop-title{font-size:1.08rem}.drop-help{font-size:.9rem}.file-list{min-height:52px;margin-top:12px;padding:10px 0}.option-group{margin-top:16px;padding-top:16px}.panel-actions{margin-top:18px}.panel-actions .primary-action{min-width:122px}.limit-note{flex-basis:100%}.hero-visual{grid-template-columns:1fr}.content-band{padding:52px 0}.option-list{display:grid}.option-list label{min-height:44px}.file-list li,.file-actions{justify-content:stretch}.file-list li{align-items:stretch;flex-direction:column}.footer-groups a,.footer-legal a{min-height:44px}}