:root{color:#17211b;font-synthesis:none;text-rendering:optimizelegibility;--primary:#17663e;--primary-hover:#105331;--surface:#fff;--surface-muted:#f0f4ed;--text:#17211b;--text-muted:#657168;--border:#dce4da;--focus:#17663e;--success:#167447;--danger:#b42318;background:#f6f8f3;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:radial-gradient(circle at 50% -10%,#c9e0c5b3,#0000 33rem),#f6f8f3;min-width:320px;min-height:100vh;margin:0}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed}button:focus-visible,input:focus-visible,a:focus-visible{outline-offset:3px;outline:3px solid #17663e47}main{width:min(100% - 32px,960px);margin:0 auto;position:relative}.service-ads{display:contents}.service-ad{--ad-ink:#23483a;--ad-muted:#5d7065;color:var(--ad-ink);border:1px solid #d9e2d6;border-radius:20px;padding:24px;overflow:hidden;box-shadow:0 8px 30px #24382a08}.service-ad-dev{--ad-ink:#f4f8ee;--ad-muted:#c6d8ca;background:radial-gradient(at 100% 0,#356b50,#0000 65%),#163f30;border-color:#28513f}.service-ad-translation{--ad-ink:#4f3b29;--ad-muted:#766753;background:radial-gradient(at 100% 0,#f3e5ce,#0000 65%),#fcf8ef;border-color:#e6dccb}.service-ad h2{letter-spacing:-.04em;margin:0;font-size:27px;line-height:1.5}.service-ad-intro{color:var(--ad-muted);margin:10px 0 14px;font-size:13px;line-height:1.7}.service-ad-tags{flex-wrap:wrap;gap:6px;display:flex}.service-ad-tags span{background:#ffffff08;border:1px solid #ffffff26;border-radius:6px;padding:5px 8px;font-size:11px}.service-ad-translation .service-ad-tags span{background:#fff9;border-color:#ded1bd}.service-ad-detail{border-top:1px solid #ffffff26;margin-top:16px;padding-top:14px}.service-ad-detail strong{font-size:12px}.service-ad-detail p{color:var(--ad-muted);margin:8px 0 0;font-size:12px;line-height:1.9}.service-ad-points{gap:8px;margin:16px 0 0;padding:0;list-style:none;display:grid}.service-ad-points li{color:var(--ad-muted);gap:6px;font-size:12px;line-height:1.8;display:flex}.service-ad-points svg{flex-shrink:0;margin-top:4px}.service-ad-contact{text-align:center;flex-direction:column;align-items:center;gap:6px;margin-top:18px;display:flex}.service-ad-contact strong{align-items:center;gap:3px;font-size:12px;display:flex}.service-ad-contact>span{color:var(--ad-muted);font-size:10px;line-height:1.6}.service-ad-qr-link{background:#fff;border-radius:12px;padding:8px;line-height:0;display:block}.service-ad-qr-link img{object-fit:contain;width:144px;height:144px;display:block}.service-ad-qr-placeholder{color:#88765b;background:#fff9;border:1px dashed #b7a58b;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:6px;width:124px;height:124px;display:flex}.service-ad-qr-placeholder span{font-size:11px}.service-ad-qr-placeholder small{font-size:10px}.service-ad{z-index:20;width:210px;padding:20px 16px;position:fixed;top:88px}.service-ad-dev{left:max(12px,50vw - 720px)}.service-ad-translation{right:max(12px,50vw - 720px)}.service-ad h2{font-size:23px}.service-ad-toggle{display:none}.service-ads-en .service-ad h2{letter-spacing:-.03em;font-size:21px;line-height:1.35}.service-ads-en .service-ad-intro,.service-ads-en .service-ad-points li{line-height:1.5}@media (width>=1100px) and (width<=1459px){main:has(.service-ads){width:calc(100% - 480px)}}@media (width<=1099px){.service-ad{width:min(280px,100vw - 32px);display:none;top:148px;box-shadow:0 12px 40px #17211b30}.service-ad.is-expanded{display:block}.service-ad-toggle{z-index:21;color:#f4f8ee;background:#163f30;border:1px solid #28513f;border-radius:0 10px 10px 0;padding:10px 12px;font-size:12px;display:block;position:fixed;top:104px;box-shadow:0 3px 12px #17211b18}.service-ad-toggle-dev{left:0}.service-ad-toggle-translation{color:#4f3b29;background:#fcf8ef;border-color:#e6dccb;border-radius:10px 0 0 10px;right:0}}@media (height<=650px){.service-ad{padding:14px 16px;top:60px}.service-ad-intro{margin:6px 0 10px}.service-ad-detail{margin-top:10px;padding-top:10px}.service-ad-contact{margin-top:12px}.service-ad-qr-link img{width:112px;height:112px}.service-ad-qr-placeholder{width:100px;height:100px}}@media (width<=1099px) and (height<=650px){.service-ad-toggle{top:12px}}@media (height<=480px){.service-ad{padding:10px 16px;top:56px}.service-ad h2{font-size:20px;line-height:1.3}.service-ad-intro,.service-ad-detail,.service-ad-points{display:none}.service-ad-tags{margin-top:10px}}.site-header{justify-content:space-between;align-items:center;height:72px;display:flex}.header-actions{align-items:center;gap:12px;display:flex}.language-link{color:var(--primary);white-space:nowrap;font-size:13px;font-weight:700;text-decoration:none}.language-link:hover{text-decoration:underline}.tool-nav{flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0 0;font-size:13px;font-weight:700;display:flex}.tool-nav a,.tool-nav span{border-radius:999px;padding:8px 12px}.tool-nav a{color:var(--primary);text-decoration:none}.tool-nav a:hover{background:#e7f1e6}.tool-nav [aria-current=page]{color:#fff;background:var(--primary)}.brand{color:var(--text);align-items:center;gap:10px;font-size:17px;font-weight:750;text-decoration:none;display:inline-flex}.brand-mark{color:#fff;background:var(--primary);border-radius:11px;place-items:center;width:36px;height:36px;display:grid}.privacy-badge{color:var(--primary);background:#ffffffb8;border:1px solid #17663e24;border-radius:999px;align-items:center;gap:7px;padding:8px 12px;font-size:13px;font-weight:650;display:inline-flex}.hero{text-align:center;padding:72px 16px 44px}.eyebrow{color:var(--primary);letter-spacing:.12em;margin:0 0 16px;font-size:13px;font-weight:800}.hero h1{letter-spacing:-.045em;max-width:920px;margin:0 auto;font-size:clamp(38px,6vw,62px);line-height:1.08}.hero-copy{max-width:780px;color:var(--text-muted);margin:22px auto 0;font-size:17px;line-height:1.7}.converter-card{background:var(--surface);border:1px solid #17211b14;border-radius:24px;padding:12px;box-shadow:0 22px 70px #2236271a}.compress-page .hero{padding-top:56px}.compress-card{max-width:960px}.compress-settings{padding:28px 20px 24px}.compress-settings h2{margin:0 0 22px;font-size:19px}.size-mode{border:0;flex-wrap:wrap;gap:8px;margin:0 0 24px;padding:0;display:flex}.size-mode legend{margin-bottom:10px;font-size:14px;font-weight:720}.size-mode label{border:1px solid var(--border);cursor:pointer;border-radius:10px;align-items:center;gap:8px;min-height:42px;padding:0 14px;font-size:14px;display:inline-flex}.size-mode label:has(input:checked){color:var(--primary);border-color:var(--primary);background:#edf6ed;font-weight:700}.size-mode input{accent-color:var(--primary)}.compress-controls{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 28px;margin-bottom:28px;display:grid}.compress-field{flex-direction:column;gap:9px;min-width:0;display:flex}.compress-field label{font-size:14px;font-weight:720}.compress-field input:not([type=range]),.compress-field select{border:1px solid var(--border);width:100%;min-height:44px;color:var(--text);background:#fff;border-radius:10px;padding:0 12px}.compress-field input[type=range]{width:100%;min-height:44px;accent-color:var(--primary)}.compress-field p{color:var(--text-muted);margin:0;font-size:12px;line-height:1.55}.numeric-field{position:relative}.numeric-field input{padding-right:40px!important}.numeric-field span{color:var(--text-muted);pointer-events:none;font-size:13px;position:absolute;top:12px;right:14px}.compress-settings>.primary-button{width:100%}.compress-queue{border-top:1px solid var(--border);padding-top:24px}.compress-queue .file-list{margin-bottom:0}.compress-queue>.download-button{width:100%;margin-top:20px}.guide-section.compress-guide{margin-top:64px}.crop-edge{max-width:320px;margin-bottom:20px}.crop-hint,.crop-dimensions{color:var(--text-muted);font-size:13px;line-height:1.6}.crop-options{border:0;margin:0 0 18px;padding:0}.crop-options legend{margin-bottom:10px;font-size:14px;font-weight:720}.crop-option-list{flex-wrap:wrap;gap:8px;display:flex}.crop-option-list label{border:1px solid var(--border);cursor:pointer;border-radius:10px;align-items:center;min-height:40px;padding:0 13px;font-size:13px;display:inline-flex}.crop-option-list label.selected{border-color:var(--primary);color:var(--primary);background:#edf6ed;font-weight:700}.crop-option-list input{opacity:0;pointer-events:none;position:absolute}.crop-option-list label:focus-within{outline:2px solid var(--primary);outline-offset:2px}.crop-custom-ratio{flex-wrap:wrap;align-items:end;gap:10px;margin:0 0 18px;display:flex}.crop-custom-ratio label{gap:6px;font-size:13px;font-weight:700;display:grid}.crop-custom-ratio input{border:1px solid var(--border);width:100px;height:42px;font:inherit;border-radius:9px;padding:0 10px}.crop-custom-ratio>span{padding-bottom:10px}.crop-custom-ratio p{color:#ae392e;width:100%;margin:0;font-size:12px}.crop-guide-control{flex-wrap:wrap;align-items:center;gap:12px;margin:0 0 16px;display:flex}.crop-guide-control>label{font-size:14px;font-weight:720}.crop-guide-control select{border:1px solid var(--border);min-height:42px;color:var(--text);background:#fff;border-radius:9px;padding:0 12px}.crop-guide-control .secondary-button{min-height:42px}.crop-redraw{margin-bottom:6px}.crop-preview{touch-action:none;cursor:crosshair;-webkit-user-select:none;user-select:none;max-width:100%;margin:18px auto 8px;line-height:0;display:table;position:relative;overflow:hidden}.crop-preview img{pointer-events:none;width:auto;max-width:100%;height:auto;max-height:62vh;display:block}.crop-selection{box-sizing:border-box;outline:1px solid var(--primary);cursor:move;background:#ffffff14;border:2px solid #fff;position:absolute;box-shadow:0 0 0 9999px #00000059}.composition-guide{fill:none;stroke:#ffffffeb;stroke-width:.28px;vector-effect:non-scaling-stroke;filter:drop-shadow(0 0 1px #000c);pointer-events:none;width:100%;height:100%;position:absolute;inset:0}.composition-guide .spiral-frames{stroke-opacity:.55;stroke-width:.18px}.crop-handle{touch-action:none;width:28px;height:28px;position:absolute;transform:translate(-50%,-50%)}.crop-handle:after{content:"";background:var(--primary);border:2px solid #fff;border-radius:50%;position:absolute;inset:8px;box-shadow:0 1px 4px #00000080}.handle-nw{cursor:nwse-resize;top:0;left:0}.handle-n{cursor:ns-resize;top:0;left:50%}.handle-ne{cursor:nesw-resize;top:0;left:100%}.handle-e{cursor:ew-resize;top:50%;left:100%}.handle-se{cursor:nwse-resize;top:100%;left:100%}.handle-s{cursor:ns-resize;top:100%;left:50%}.handle-sw{cursor:nesw-resize;top:100%;left:0}.handle-w{cursor:ew-resize;top:50%;left:0}.crop-dimensions{text-align:center}.crop-result{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding-top:22px;display:flex}.crop-result .download-button{margin:0}.drop-zone{text-align:center;background:#fbfcfa;border:1.5px dashed #a9b9aa;border-radius:17px;flex-direction:column;justify-content:center;align-items:center;min-height:330px;padding:40px 20px;transition:border-color .18s,background .18s;display:flex}.drop-zone.is-dragging{border-color:var(--primary);background:#edf6ed}.upload-icon{width:64px;height:64px;color:var(--primary);background:#e6f0e5;border-radius:18px;place-items:center;margin-bottom:20px;display:grid}.drop-zone h2{letter-spacing:-.02em;margin:0;font-size:23px}.drop-zone p{color:var(--text-muted);margin:10px 0 24px;line-height:1.6}.drop-zone .upload-notice{color:var(--danger);margin:14px 0 0;font-size:13px}.secondary-button,.primary-button,.download-button{border:0;border-radius:12px;min-height:48px;padding:0 22px;font-weight:720;transition:background .18s,color .18s,opacity .18s}.secondary-button{color:#fff;background:var(--primary)}.secondary-button:hover{background:var(--primary-hover)}.queue{padding:28px 20px 16px}.queue-header{justify-content:space-between;align-items:center;gap:16px;display:flex}.queue-header h2{margin:0 0 5px;font-size:18px}.queue-header p{color:var(--text-muted);margin:0;font-size:13px}.text-button,.icon-button{min-width:44px;min-height:44px;color:var(--text-muted);background:0 0;border:0;border-radius:10px;justify-content:center;align-items:center;display:inline-flex}.text-button{gap:7px;padding:0 10px}.text-button:hover,.icon-button:hover{color:var(--text);background:var(--surface-muted)}.text-button:disabled,.icon-button:disabled{opacity:.45}.file-list{border-top:1px solid var(--border);margin:20px 0;padding:0;list-style:none}.file-row{border-bottom:1px solid var(--border);align-items:center;gap:12px;min-height:68px;display:flex}.file-status{width:36px;height:36px;color:var(--text-muted);background:var(--surface-muted);border-radius:10px;flex:0 0 36px;place-items:center;display:grid}.status-done{color:var(--success);background:#e7f4eb}.status-error{color:var(--danger);background:#fcebea}.file-details{flex-direction:column;flex:1;gap:4px;min-width:0;display:flex}.file-details strong{text-overflow:ellipsis;white-space:nowrap;font-size:14px;overflow:hidden}.file-details span{color:var(--text-muted);font-size:12px}.file-details .error-text{color:var(--danger);white-space:normal}.settings-row{justify-content:space-between;align-items:center;gap:24px;padding:4px 0 24px;display:flex}.settings-row label{font-size:14px;font-weight:700}.quality-control{align-items:center;gap:12px;width:min(320px,60%);display:flex}.quality-control input{accent-color:var(--primary);flex:1}.quality-control output{width:42px;color:var(--text-muted);font-variant-numeric:tabular-nums;font-size:13px}.actions{grid-template-columns:1fr 1fr;gap:12px;display:grid}.primary-button,.download-button{justify-content:center;align-items:center;gap:9px;display:inline-flex}.primary-button{color:#fff;background:var(--primary)}.primary-button:hover:not(:disabled){background:var(--primary-hover)}.primary-button:disabled{opacity:.42}.download-button{color:var(--primary);background:#e7f1e6}.download-button:hover{background:#dcebdc}.trust-grid{grid-template-columns:repeat(3,1fr);gap:16px;padding:64px 0;display:grid}.trust-grid article{padding:8px}.trust-grid svg{color:var(--primary)}.trust-grid h2{margin:14px 0 8px;font-size:15px}.trust-grid p{color:var(--text-muted);margin:0;font-size:13px;line-height:1.65}.guide-section,.faq-section,.capability-section{max-width:800px;margin:0 auto 48px}.guide-section>h2,.faq-section>h2,.capability-section>h2{letter-spacing:-.02em;margin:0 0 20px;font-size:25px}.capability-intro{color:var(--text-muted);margin:-6px 0 22px;font-size:15px;line-height:1.75}.capability-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.capability-grid article{border:1px solid var(--border);background:var(--surface);border-radius:16px;padding:20px 22px}.capability-grid article:last-child:nth-child(odd){grid-column:1/-1}.capability-grid h3{margin:0 0 8px;font-size:16px}.capability-grid p{color:var(--text-muted);margin:0;font-size:14px;line-height:1.7}.guide-section ol{border:1px solid var(--border);background:var(--surface);border-radius:18px;margin:0;padding:24px 24px 24px 48px}.guide-section li{padding-left:6px;line-height:1.7}.guide-section li+li{margin-top:10px}.faq-list{gap:12px;display:grid}.faq-list article{border:1px solid var(--border);background:var(--surface);border-radius:16px;padding:20px 24px}.faq-list h3{margin:0 0 8px;font-size:16px}.faq-list p{color:var(--text-muted);margin:0;font-size:14px;line-height:1.7}footer{color:var(--text-muted);text-align:center;padding:16px 0 40px;font-size:13px}.site-footer{border-top:1px solid var(--border);margin-top:56px;padding:26px 12px 40px}.site-footer p{margin:0 0 14px}.site-footer nav,.filing-links{flex-wrap:wrap;justify-content:center;align-items:center;gap:10px 22px;display:flex}.site-footer nav{margin-bottom:18px}.site-footer a{color:var(--text-muted);text-decoration:none}.site-footer a:hover{color:var(--primary);text-decoration:underline}.filing-links{gap:10px 24px;font-size:12px}.filing-links a{align-items:center;gap:5px;display:inline-flex}.filing-links img{object-fit:contain;width:18px;height:20px}.related-guides{max-width:800px;margin:0 auto 48px}.related-guides h2{margin:0 0 20px;font-size:25px}.related-guides-grid{gap:10px;display:grid}.related-guides-grid a{border:1px solid var(--border);background:var(--surface);color:var(--primary);border-radius:14px;justify-content:space-between;gap:16px;padding:17px 20px;font-weight:650;text-decoration:none;display:flex}.related-guides-grid a:hover{background:#f8fbf7;border-color:#a7c8ae}.info-page{max-width:960px}.info-breadcrumb{max-width:800px;color:var(--text-muted);align-items:center;gap:10px;margin:30px auto 0;font-size:13px;display:flex}.info-breadcrumb a{color:var(--primary)}.info-hero{max-width:800px;margin:0 auto;padding:56px 0 28px}.info-hero h1{letter-spacing:-.03em;margin:0 0 18px;font-size:clamp(32px,5vw,48px);line-height:1.2}.info-hero>p:last-child{max-width:720px;color:var(--text-muted);margin:0;line-height:1.8}.info-card{border:1px solid var(--border);background:var(--surface);border-radius:18px;max-width:800px;margin:0 auto 16px;padding:26px 30px;scroll-margin-top:24px}.info-card h2{margin:0 0 16px;font-size:22px}.info-card p,.info-card li{color:#4e5e52;line-height:1.8}.info-card p{margin:0 0 12px}.info-card p:last-child{margin-bottom:0}.info-card ol,.info-card ul{margin:0 0 12px;padding-left:22px}.info-card li+li{margin-top:8px}.info-card a{color:var(--primary);text-underline-offset:3px}.info-card .feedback-qr{border:1px solid var(--border);border-radius:12px;max-width:100%;height:auto;margin:16px 0 8px;display:block}.info-card .info-note{color:var(--text-muted);font-size:13px}.support-widget{right:max(20px, env(safe-area-inset-right));bottom:max(20px, env(safe-area-inset-bottom));z-index:100;flex-direction:column;align-items:flex-end;gap:12px;display:flex;position:fixed}.support-trigger{color:#fff;background:var(--primary);border:1px solid #17663e2e;border-radius:999px;align-items:center;gap:8px;min-height:48px;padding:0 16px;font-weight:720;transition:background .18s,box-shadow .18s;display:inline-flex;box-shadow:0 10px 28px #17452b38}.support-trigger:hover{background:var(--primary-hover);box-shadow:0 12px 34px #17452b47}.support-card{border:1px solid var(--border);background:var(--surface);transform-origin:100% 100%;border-radius:20px;width:520px;padding:20px;animation:.18s ease-out support-in;position:relative;box-shadow:0 20px 60px #1d302333}.support-close{width:44px;height:44px;color:var(--text-muted);background:0 0;border:0;border-radius:10px;place-items:center;display:grid;position:absolute;top:10px;right:10px}.support-close:hover{color:var(--text);background:var(--surface-muted)}.support-card-title{margin:0 0 18px;padding-right:44px;font-size:17px}.support-panels{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.support-panel{min-width:0}.support-heading{align-items:center;gap:10px;margin-bottom:12px;display:flex}.support-icon{width:44px;height:44px;color:var(--primary);background:#e7f1e6;border-radius:13px;flex:0 0 44px;place-items:center;display:grid}.support-icon.feedback-icon{color:#245aa5;background:#e9f0fa}.support-heading h3{margin:0 0 3px;font-size:15px}.support-heading p{color:var(--text-muted);margin:0;font-size:13px}.qr-frame{aspect-ratio:1;border:1px solid var(--border);background:#f7f9f5;border-radius:14px;width:100%;position:relative;overflow:hidden}.qr-frame img{object-fit:contain;width:100%;height:100%;display:block}.qr-frame img.is-pending{display:none}.qr-placeholder{color:#879289;flex-direction:column;justify-content:center;align-items:center;gap:10px;font-size:13px;display:flex;position:absolute;inset:0}.support-amounts{grid-template-columns:repeat(3,1fr);gap:7px;margin-top:12px;display:grid}.support-amounts span{min-height:36px;color:var(--primary);font-variant-numeric:tabular-nums;background:#f1f6ef;border:1px solid #d7e3d7;border-radius:9px;place-items:center;font-size:13px;font-weight:750;display:grid}.support-note{color:var(--text-muted);text-align:center;margin:12px 0 0;font-size:12px}.spin{animation:.9s linear infinite spin}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@keyframes spin{to{transform:rotate(360deg)}}@keyframes support-in{0%{opacity:0;transform:translateY(8px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}@media (width<=680px){main{width:min(100% - 20px,960px)}.site-header{height:64px}.info-breadcrumb{margin-top:18px}.info-hero{padding:38px 6px 24px}.info-card{padding:22px 18px}.privacy-badge{padding:7px 9px}.header-actions{gap:8px}.privacy-badge{font-size:11px}.hero{padding:54px 8px 34px}.hero h1{font-size:clamp(36px,12vw,48px)}.hero-copy{font-size:15px}.converter-card{border-radius:19px;padding:8px}.drop-zone{min-height:292px}.queue{padding:24px 10px 10px}.settings-row{flex-direction:column;align-items:flex-start;gap:12px}.quality-control{width:100%}.actions{grid-template-columns:1fr}.compress-page .hero{padding-top:40px}.compress-settings{padding:24px 12px}.compress-controls{grid-template-columns:1fr;gap:22px}.compress-queue{padding:24px 12px}.trust-grid{grid-template-columns:1fr;gap:24px;padding:44px 8px}.guide-section,.faq-section,.capability-section{margin-bottom:36px}.guide-section>h2,.faq-section>h2,.capability-section>h2{font-size:22px}.capability-grid{grid-template-columns:1fr}.capability-grid article:last-child:nth-child(odd){grid-column:auto}.faq-list article{padding:18px}.support-widget{right:max(12px, env(safe-area-inset-right));bottom:max(12px, env(safe-area-inset-bottom))}.support-card{width:min(520px,100vw - 24px);padding:16px}.support-panels{gap:12px}.support-heading{flex-direction:column;align-items:flex-start}.support-heading p{font-size:12px}.support-note{min-height:36px;line-height:1.5}}@media (width<=460px){.site-header{flex-wrap:wrap;gap:10px;height:auto;min-height:64px;padding:12px 0}.header-actions{justify-content:space-between;width:100%}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}