:root{--bg:#f7f8fb;--surface:#fff;--ink:#172033;--muted:#5d687c;--line:#dfe4ec;--accent:#315efb;--accent-dark:#2347c7;--success:#147a4b;--danger:#b42318;--warning:#9a6700;--shadow:0 16px 40px #15203314;--radius:18px;color:var(--ink);background:var(--bg);font-synthesis:none;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--ink);margin:0;line-height:1.7}a{color:inherit;text-underline-offset:.18em;text-decoration-thickness:.08em}img{max-width:100%}button,.button,input,select,textarea{font:inherit}button,.button{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:12px;justify-content:center;align-items:center;min-height:44px;padding:.75rem 1.1rem;font-weight:750;text-decoration:none;transition:transform .16s,background .16s,box-shadow .16s;display:inline-flex}button:hover,.button:hover{background:var(--accent-dark);transform:translateY(-1px)}button:disabled{opacity:.48;cursor:not-allowed;transform:none}.secondary{color:#213b9a;background:#eef2ff;border:1px solid #cfd8ff}.secondary:hover{background:#e3e9ff}.ghost{color:var(--ink);border:1px solid var(--line);background:0 0}.ghost:hover{background:#eef1f5}.danger{color:var(--danger)}:focus-visible{outline-offset:3px;outline:3px solid #ffbf47}.skipLink{z-index:1000;background:#fff;border-radius:8px;padding:.7rem 1rem;position:fixed;top:8px;left:8px;transform:translateY(-150%)}.skipLink:focus{transform:none}.srOnly{clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important;width:1px!important;height:1px!important;margin:-1px!important;padding:0!important;position:absolute!important;overflow:hidden!important}.smallPrint{color:var(--muted);font-size:.85rem}.eyebrow{color:var(--accent);letter-spacing:.09em;text-transform:uppercase;font-size:.8rem;font-weight:850;display:block}.notice{color:#634a00;background:#fff7d6;border-radius:10px;padding:.75rem 1rem;font-size:.9rem}.errorNotice{color:var(--danger);background:#ffefed;border:1px solid #ffc9c4}.warningText,.errorText{color:var(--danger)}.successText{color:var(--success);font-weight:700}.siteHeader{z-index:100;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);background:#fffffff0;position:sticky;top:0}.headerInner{align-items:center;gap:30px;max-width:1240px;min-height:72px;margin:auto;padding:0 24px;display:flex}.logo{align-items:center;gap:.5rem;font-size:1.25rem;font-weight:900;text-decoration:none;display:flex}.logo span{background:var(--accent);color:#fff;border-radius:10px;place-items:center;width:34px;height:34px;display:grid}.mainNav{gap:24px;margin-left:auto;display:flex}.mainNav a{color:#39445a;font-weight:650;text-decoration:none}.mainNav a:hover{color:var(--accent)}.languageMenu{position:relative}.languageMenu summary{cursor:pointer;border:1px solid var(--line);border-radius:10px;align-items:center;min-height:44px;padding:.5rem .8rem;list-style:none;display:flex}.languageMenu summary::-webkit-details-marker{display:none}.languageMenu>div{border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:12px;min-width:160px;padding:.4rem;display:grid;position:absolute;top:52px;right:0}.languageMenu a{border-radius:8px;padding:.6rem .8rem;text-decoration:none}.languageMenu a:hover{background:#f1f4f9}.siteFooter{color:#d4dae5;background:#111827;margin-top:90px}.footerInner{grid-template-columns:1.4fr 2fr;gap:30px;max-width:1240px;margin:auto;padding:56px 24px;display:grid}.footerInner strong{color:#fff;font-size:1.3rem}.footerInner nav{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px 20px;display:grid}.footerInner a{color:#e4e8ef}.linkButton{color:#fff;background:0 0;border:1px solid #586276;width:max-content}.copyright{color:#9da7b8;grid-column:1/-1;font-size:.85rem}.languageLanding,.notFound{background:radial-gradient(circle at 20% 20%,#e8eeff,transparent 35%),var(--bg);place-items:center;min-height:100vh;padding:30px;display:grid}.languageCard,.notFound>div{border:1px solid var(--line);width:min(700px,100%);box-shadow:var(--shadow);text-align:center;background:#fff;border-radius:28px;padding:48px}.brandMark{background:var(--accent);color:#fff;border-radius:20px;place-items:center;width:68px;height:68px;margin:auto;font-size:2rem;display:grid}.languageCard h1{margin:.5rem 0 0;font-size:clamp(2.4rem,8vw,4.6rem)}.languageGrid{grid-template-columns:repeat(2,1fr);gap:12px;margin:28px 0;display:grid}.languageGrid a{border:1px solid var(--line);text-align:left;border-radius:14px;justify-content:space-between;padding:18px;text-decoration:none;display:flex}.languageGrid a:hover{border-color:var(--accent);background:#f5f7ff}.languageRecommendation{background:#eef2ff;border-radius:10px;padding:.8rem}.hero{grid-template-columns:1.1fr .9fr;align-items:center;gap:60px;max-width:1240px;margin:0 auto;padding:88px 24px 70px;display:grid}.hero h1,.pageHero h1,.toolHero h1,.articleHeader h1{letter-spacing:-.045em;margin:.4rem 0 1.2rem;font-size:clamp(2.4rem,5.6vw,4.8rem);line-height:1.08}.hero p,.pageHero>p,.toolHero>p,.articleHeader>p{color:var(--muted);max-width:760px;font-size:1.15rem}.heroActions{flex-wrap:wrap;gap:12px;margin:26px 0;display:flex}.trustRow{color:#40506a;flex-wrap:wrap;gap:16px;font-size:.9rem;display:flex}.heroVisual{min-height:430px;box-shadow:var(--shadow);background:#eef2ff;border:1px solid #dbe3ff;border-radius:30px;justify-content:center;align-items:center;gap:24px;padding:30px;display:flex}.visualFrame{border:3px solid var(--ink);text-align:center;background:#fff;place-items:center;font-weight:800;display:grid;box-shadow:0 12px 25px #141f3214}.sourceFrame{width:220px;height:165px}.outputFrame{border-color:var(--accent);width:190px;height:125px}.visualFrame small{color:var(--muted)}.quickStart{background:var(--ink);color:#fff;border-radius:24px;justify-content:space-between;align-items:center;gap:20px;max-width:1180px;margin:0 auto 70px;padding:32px 38px;display:flex}.quickStart h2{margin:0}.quickStart p{color:#c8cfda;margin:.2rem 0}.contentWrap,.pageShell,.articleShell,.toolWrap{max-width:1180px;margin:auto;padding:0 24px}.pageShell{padding-top:64px}.pageShell.narrow{max-width:920px}.pageHero{margin-bottom:48px}.pageHero h1{font-size:clamp(2.2rem,5vw,4rem)}.proseSections{gap:68px;display:grid}.proseSections section{max-width:850px}.proseSections h2,.toolContent h2,.articleBody h2{letter-spacing:-.025em;margin:0 0 18px;font-size:clamp(1.65rem,3vw,2.25rem);line-height:1.25}.proseSections p,.toolContent p,.articleBody p{color:#344056}.sectionHeading{justify-content:space-between;align-items:end;gap:20px;margin:90px 0 28px;display:flex}.sectionHeading h2{margin:.2rem 0;font-size:2.2rem}.resourceGrid{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.resourceGrid.large{grid-template-columns:repeat(2,1fr)}.resourceCard{border:1px solid var(--line);background:#fff;border-radius:16px;gap:8px;padding:22px;text-decoration:none;display:grid}.resourceCard:hover{box-shadow:var(--shadow);border-color:#9fb1ff}.resourceCard strong{font-size:1.1rem}.resourceCard span{color:var(--accent);font-weight:750}.resourceIcon{background:#eef2ff;border-radius:10px;place-items:center;width:42px;height:42px;display:grid}.guideGrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;display:grid}.guideCard{border:1px solid var(--line);background:#fff;border-radius:18px;overflow:hidden}.guideCard img{aspect-ratio:16/9;object-fit:cover;background:#f1f3f7;display:block}.guideCard>div{padding:22px}.guideCard h3{margin:.4rem 0;font-size:1.3rem;line-height:1.35}.guideCard h3 a{text-decoration:none}.guideCard p{color:var(--muted)}.guideCard>div>span:last-child{color:#7a8496;font-size:.8rem}.faqPreview,.faqList{margin-top:90px}.faqPreview details,.faqList details,.articleBody details{border:1px solid var(--line);background:#fff;border-radius:12px;margin:10px 0;padding:0 18px}.faqPreview summary,.faqList summary,.articleBody summary{cursor:pointer;padding:16px 0;font-weight:750}.toolHero{text-align:center;max-width:1000px;margin:0 auto;padding:64px 24px 30px}.toolHero p{margin-left:auto;margin-right:auto}.editor{border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:24px;padding:20px}.dropZone{text-align:center;border:2px dashed #aab5c7;border-radius:18px;place-items:center;gap:8px;padding:28px;transition:all .15s;display:grid}.dropZone.dragging{border-color:var(--accent);background:#f3f6ff}.dropIcon{width:48px;height:48px;color:var(--accent);background:#eef2ff;border-radius:14px;place-items:center;font-size:2rem;display:grid}.dropZone small{color:var(--success)}.editorLayout{grid-template-columns:330px minmax(0,1fr);gap:22px;margin-top:22px;display:grid}.settingsPanel{border-right:1px solid var(--line);padding-right:20px}.settingsPanel summary{cursor:pointer;padding:12px 0;font-size:1.1rem;font-weight:850}.settingsBody{gap:15px;display:grid}.settingsBody label,.modal label,.calculator label{gap:6px;font-size:.9rem;font-weight:700;display:grid}.settingsBody input,.settingsBody select,.modal input,.modal select,.calculator input,.calculator select{width:100%;min-height:44px;color:var(--ink);background:#fff;border:1px solid #cbd3df;border-radius:10px;padding:.55rem .7rem}.dimensionGrid,.calcGrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.checkRow{align-items:flex-start;gap:9px!important;font-weight:600!important;display:flex!important}.checkRow input{margin-top:3px;width:20px!important;height:20px!important;min-height:20px!important}.sliderWithValue{grid-template-columns:1fr 76px;align-items:center;gap:10px;display:grid}.relativeSlider{accent-color:var(--accent);border:0!important;padding:0!important}.numberSmall{min-width:0}.targetRow{grid-template-columns:1fr 86px;gap:8px;display:grid}.presetRow{flex-wrap:wrap;gap:6px;display:flex}.chip{min-height:34px;color:var(--ink);border:1px solid var(--line);background:#f1f3f7;padding:.3rem .6rem;font-size:.75rem}.colorRow{grid-template-columns:1fr 1.2fr;gap:12px;display:grid}.colorRow input[type=color]{padding:4px}.comparison{grid-template-columns:1fr 1fr;gap:14px;margin-bottom:18px;display:grid}.comparison h3{margin:0 0 6px;font-size:.9rem}.previewPane,.previewPlaceholder{background:repeating-conic-gradient(#e9edf3 0 25%,#f7f8fb 0 50%) 50%/20px 20px;border:1px solid var(--line);touch-action:none;border-radius:14px;place-items:center;height:250px;display:grid;position:relative;overflow:hidden}.previewPane img{object-fit:contain;max-width:90%;max-height:90%;transition:transform 80ms linear}.zoomBadge{color:#fff;background:#111827cc;border-radius:6px;padding:.25rem .45rem;font-size:.75rem;position:absolute;bottom:8px;right:8px}.previewPlaceholder{color:var(--muted);font-weight:800}.actionBar{z-index:20;border-bottom:1px solid var(--line);background:#fffffff5;flex-wrap:wrap;gap:8px;padding:12px 0;display:flex;position:sticky;top:85px}.overallProgress{background:#eef2ff;border-radius:12px;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;padding:10px;display:grid}.overallProgress progress,.fileInfo progress{width:100%}.fileList{gap:10px;margin-top:12px;display:grid}.fileCard{border:1px solid var(--line);border-radius:14px;grid-template-columns:auto 70px minmax(0,1fr) auto;align-items:center;gap:12px;padding:12px;display:grid;position:relative}.fileCard.status-error{border-color:#f4aaa3}.fileCard.status-done{border-color:#9fd5bb}.selectBox input{width:20px;height:20px}.thumbButton{background:#f1f3f7;border-radius:10px;width:70px;height:70px;min-height:70px;padding:0;overflow:hidden}.thumbButton img{object-fit:cover;width:100%;height:100%}.fileInfo{gap:2px;min-width:0;display:grid}.fileInfo strong{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.fileInfo span{color:var(--muted);font-size:.78rem}.statusBadge{text-transform:uppercase;color:var(--accent);font-size:.75rem;font-weight:800}.fileActions{flex-wrap:wrap;grid-column:3/5;justify-content:flex-end;gap:6px;display:flex}.iconButton{width:44px;height:44px;color:var(--ink);border:1px solid var(--line);background:#f1f3f7;padding:0}.smallButton{min-height:38px;padding:.4rem .65rem;font-size:.8rem}.privacyNotes{color:var(--muted);background:#f7f9fc;border-radius:14px;margin-top:20px;padding:12px 18px;font-size:.88rem}.privacyNotes p{margin:.35rem 0}.modalBackdrop{z-index:500;background:#090f1ba6;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.modal{width:min(520px,100%);max-height:90vh;box-shadow:var(--shadow);background:#fff;border-radius:20px;padding:28px;position:relative;overflow:auto}.wideModal{width:min(700px,100%)}.modalClose{position:absolute;top:14px;right:14px}.toggleRow{gap:10px;margin:12px 0;display:flex}.modalActions{flex-wrap:wrap;gap:8px;margin-top:20px;display:flex}.toolContent{padding-top:70px}.toolContent>section{max-width:860px;margin:0 auto 64px}.tableWrap{border:1px solid var(--line);background:#fff;border-radius:14px;overflow:auto}table{border-collapse:collapse;width:100%;min-width:620px}th,td{text-align:left;border-bottom:1px solid var(--line);vertical-align:top;padding:13px 15px}th{background:#f2f4f8;font-size:.85rem}tr:last-child td{border-bottom:0}.checklist{padding-left:0;list-style:none}.checklist li{margin:.6rem 0;padding-left:30px;position:relative}.checklist li:before{content:"✓";color:var(--success);font-weight:900;position:absolute;left:0}.breadcrumbs{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;margin-bottom:28px;font-size:.85rem;overflow:hidden}.articleShell{padding-top:40px}.articleHeader{text-align:center;max-width:900px;margin:auto}.articleHeader h1{font-size:clamp(2.4rem,5.8vw,4.5rem)}.articleHeader>p{margin-left:auto;margin-right:auto}.articleHeader img{border:1px solid var(--line);border-radius:20px;margin-top:30px}.articleMeta{color:var(--muted);justify-content:center;gap:18px;font-size:.85rem;display:flex}.articleLayout{grid-template-columns:220px minmax(0,760px);justify-content:center;gap:60px;margin-top:60px;display:grid}.toc{border-left:2px solid var(--line);align-self:start;gap:8px;max-height:calc(100vh - 130px);padding-left:16px;display:grid;position:sticky;top:100px;overflow:auto}.toc a{color:var(--muted);font-size:.82rem;text-decoration:none}.toc a:hover{color:var(--accent)}.articleBody{font-size:1.03rem}.articleBody .lead{color:var(--ink);font-size:1.25rem}.articleBody section{margin:70px 0;scroll-margin-top:100px}.articleCta,.endCta,.contactPanel{background:#eef2ff;border:1px solid #dbe3ff;border-radius:18px;justify-content:space-between;align-items:center;gap:20px;margin:38px 0;padding:24px;display:flex}.articleCta p{margin:0}.reviewStandard{border-left:4px solid var(--accent);background:#f5f7ff;padding:18px}.relatedLinks{gap:10px;display:grid}.relatedLinks a{border:1px solid var(--line);background:#fff;border-radius:10px;padding:12px;text-decoration:none}.adSlot{border-top:1px solid var(--line);border-bottom:1px solid var(--line);max-width:850px;min-height:0;margin:50px auto;padding:18px 0}.adSlot>span{color:#7a8496;text-align:center;font-size:.65rem;display:block}.calculator{border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:20px;margin-bottom:50px;padding:28px}.resultPanel{color:#fff;background:#111827;border-radius:14px;grid-template-columns:repeat(3,1fr);gap:12px;padding:18px;display:grid}.resultPanel div{display:grid}.resultPanel dt{color:#b8c0ce;font-size:.75rem}.resultPanel dd{margin:0;font-size:1.25rem;font-weight:850}.ratioBars{gap:10px;margin-top:25px;display:grid}.ratioBars div{grid-template-columns:60px 1fr;align-items:center;display:grid}.ratioBars meter{width:100%;height:18px}.contactPanel{display:block}.endCta{margin-top:70px}.notFound{text-align:center}@media (max-width:980px){.mainNav{display:none}.hero{grid-template-columns:1fr}.heroVisual{min-height:330px}.editorLayout{grid-template-columns:1fr}.settingsPanel{border-right:0;border-bottom:1px solid var(--line);padding:0 0 16px}.articleLayout{grid-template-columns:1fr}.toc{max-height:none;display:none;position:static}.resourceGrid{grid-template-columns:repeat(2,1fr)}}@media (max-width:680px){body{line-height:1.65}.headerInner{padding:0 16px}.languageMenu summary{font-size:.8rem}.hero{padding:55px 18px}.hero h1{font-size:2.55rem}.heroVisual{min-height:260px;padding:20px}.visualFrame{font-size:.75rem}.sourceFrame{width:150px;height:115px}.outputFrame{width:130px;height:90px}.quickStart{margin:0 16px 50px;padding:24px;display:grid}.contentWrap,.pageShell,.articleShell,.toolWrap{padding-left:16px;padding-right:16px}.guideGrid,.resourceGrid,.resourceGrid.large,.comparison{grid-template-columns:1fr}.previewPane,.previewPlaceholder{height:210px}.editor{border-radius:16px;padding:12px}.dropZone{padding:20px 12px}.actionBar{grid-template-columns:1fr 1fr;display:grid;top:73px}.actionBar button:first-child{grid-column:1/-1}.fileCard{grid-template-columns:auto 58px minmax(0,1fr);align-items:start}.thumbButton{width:58px;height:58px;min-height:58px}.statusBadge{grid-column:3}.fileActions{grid-column:1/-1}.dimensionGrid,.calcGrid{grid-template-columns:1fr 1fr}.articleHeader{text-align:left}.articleMeta{flex-wrap:wrap;justify-content:flex-start}.articleBody{font-size:1rem}.articleCta,.endCta{display:grid}.footerInner{grid-template-columns:1fr}.footerInner nav{grid-template-columns:repeat(2,1fr)}.languageCard{padding:30px 18px}.languageGrid,.resultPanel{grid-template-columns:1fr}.modal{padding:24px 18px}.sectionHeading{align-items:start}.heroActions .button{width:100%}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
