:root{color-scheme:light;--bg:#f7f8f4;--bg2:#ecf2ec;--ink:#183b33;--muted:#5d716b;--surface:#ffffff;--surface2:#f0f5f0;--line:#dbe6de;--accent:#1f6a54;--accentInk:#ffffff;--soft:#cbe9d8;--orange:#df9e69;--shadow:0 20px 65px rgba(29,61,48,.08);--radius:20px;--font:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--titleWeight:720;--decor:1}
html[data-theme=dark]{color-scheme:dark;--bg:#0d1717;--bg2:#122320;--ink:#ecf5ef;--muted:#adbbb4;--surface:#172523;--surface2:#20312e;--line:#334640;--accent:#b9e4ca;--accentInk:#10231c;--soft:#203d32;--orange:#cf9767;--shadow:0 18px 60px rgba(0,0,0,.18)}
html[data-theme=clean]{--bg:#ffffff;--bg2:#f8faf9;--ink:#14241f;--muted:#52605b;--surface:#ffffff;--surface2:#fbfcfb;--line:#e4eae6;--accent:#285d48;--soft:#e8f3e9;--orange:#789784;--shadow:none;--radius:12px}
html[data-theme=simple]{--bg:#fff;--bg2:#fff;--ink:#111;--muted:#4e4e4e;--surface:#fff;--surface2:#f6f6f6;--line:#ccc;--accent:#202020;--accentInk:#fff;--soft:#eee;--orange:#999;--shadow:none;--radius:4px;--decor:0}
html[data-theme=warm]{--bg:#fbf6ed;--bg2:#f3e9d9;--ink:#594533;--muted:#826f5d;--surface:#fffaf1;--surface2:#f7edde;--line:#e8d9c4;--accent:#94643b;--accentInk:#fff;--soft:#f2dfbd;--orange:#d8a46e}
html[data-theme=extra_warm]{--bg:#f6e6d2;--bg2:#ebcba7;--ink:#542e20;--muted:#784737;--surface:#fff1dc;--surface2:#f1d5b5;--line:#d9b391;--accent:#a74829;--accentInk:#fff;--soft:#eec18b;--orange:#d86d38;--shadow:0 20px 40px rgba(107,53,24,.13)}
html[data-theme=retro]{--bg:#ece2c8;--bg2:#cfc49c;--ink:#333d2e;--muted:#6b684b;--surface:#f8edce;--surface2:#e6d7ad;--line:#867e5a;--accent:#456e59;--accentInk:#fff6db;--soft:#d9c08b;--orange:#c16f4a;--radius:5px;--font:Georgia,"Times New Roman",serif;--titleWeight:700;--shadow:5px 6px 0 rgba(49,62,44,.14)}
html[data-theme=light]{color-scheme:light}html[data-theme=auto]{color-scheme:light}
@media(prefers-color-scheme:dark){html[data-theme=auto]{color-scheme:dark;--bg:#0d1717;--bg2:#122320;--ink:#ecf5ef;--muted:#adbbb4;--surface:#172523;--surface2:#20312e;--line:#334640;--accent:#b9e4ca;--accentInk:#10231c;--soft:#203d32;--orange:#cf9767;--shadow:0 18px 60px rgba(0,0,0,.18)}}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.55;transition:background .18s,color .18s}a{color:inherit}button,input,textarea,select{font:inherit}button{cursor:pointer}img{max-width:100%;display:block}p{margin:0 0 1rem}h1,h2,h3{line-height:1.12;letter-spacing:-.045em;margin:0 0 1rem;font-weight:var(--titleWeight)}h1{font-size:clamp(2.6rem,6vw,5.4rem)}h2{font-size:clamp(1.9rem,3.1vw,3.05rem)}h3{font-size:1.45rem}small,.small{font-size:.86rem;color:var(--muted)}.sr-only{position:absolute!important;height:1px;width:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}:focus-visible{outline:3px solid var(--orange);outline-offset:3px}.skip{position:absolute;top:-90px;inset-inline-start:10px;background:var(--ink);color:var(--bg);padding:10px;z-index:50}.skip:focus{top:10px}.container{width:min(1200px,calc(100% - 48px));margin-inline:auto}.site-header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg),transparent 8%);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.header-inner{min-height:78px;display:flex;align-items:center;gap:24px;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;font-size:1.48rem;letter-spacing:-.06em}.brand-mark{width:39px;height:39px;background:var(--soft);color:var(--ink);border-radius:13px;display:grid;place-items:center;flex:none}.brand-mark svg{width:25px;height:25px}.header-nav{display:flex;align-items:center;gap:26px}.header-nav a{text-decoration:none;font-size:.93rem;color:var(--muted)}.header-nav a:hover{color:var(--ink)}.header-controls{display:flex;gap:9px}.select-wrap{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--surface);padding:8px 10px;border-radius:12px;min-width:0}.select-wrap select{border:0;background:transparent;color:var(--ink);max-width:136px;font-size:.88rem;outline:none}.select-wrap svg{width:16px;height:16px;stroke:var(--muted)}.select-wrap:focus-within{outline:2px solid var(--orange)}.hero{padding:84px 0 72px;display:grid;grid-template-columns:1.04fr .96fr;gap:55px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:9px;text-transform:uppercase;font-size:.74rem;font-weight:800;letter-spacing:.14em;color:var(--accent);margin-bottom:21px}.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--orange)}.hero h1{max-width:700px}.hero h1 em{font-style:normal;color:var(--accent)}.lead{font-size:1.12rem;max-width:590px;color:var(--muted);line-height:1.75}.hero-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:30px 0 34px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;min-height:46px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--ink);text-decoration:none;font-size:.92rem;font-weight:700;transition:transform .16s,border-color .16s,background .16s}.btn:hover{transform:translateY(-2px);border-color:var(--accent)}.btn.primary{background:var(--accent);color:var(--accentInk);border-color:var(--accent)}.btn.primary:hover{filter:brightness(1.09)}.btn.smallbtn{padding:9px 12px;min-height:38px;font-size:.84rem}.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}.benefits{display:flex;gap:17px;flex-wrap:wrap;color:var(--muted);font-size:.83rem}.benefits span:before{content:"✓";color:var(--accent);font-weight:bold;margin-inline-end:8px}.hero-photo{position:relative}.hero-photo img{width:100%;height:510px;object-fit:cover;border-radius:30px;box-shadow:var(--shadow)}.float-note{position:absolute;bottom:26px;inset-inline-start:-24px;background:var(--surface);border:1px solid var(--line);padding:15px 19px;border-radius:16px;box-shadow:var(--shadow);font-size:.8rem;display:flex;align-items:center;gap:10px}.float-icon{display:grid;place-items:center;background:var(--soft);border-radius:11px;width:34px;height:34px;font-size:1.15rem}.tools-bg{background:var(--bg2);padding:85px 0 100px}.section-head{max-width:710px;margin:0 auto 37px;text-align:center}.section-head p{color:var(--muted)}.tool-picker{display:grid;grid-template-columns:repeat(4,1fr);gap:13px;margin-bottom:24px}.tool-tab{width:100%;display:flex;text-align:start;gap:12px;align-items:flex-start;border:1px solid var(--line);padding:17px 15px;border-radius:16px;background:var(--surface);color:var(--ink);transition:transform .17s,border-color .17s,background .17s}.tool-tab:hover{transform:translateY(-2px)}.tool-tab[aria-selected=true]{border-color:var(--accent);background:var(--soft)}.tab-icon{width:38px;height:38px;display:grid;place-items:center;border-radius:11px;background:var(--surface2);flex:none;font-size:1.1rem}.tool-tab strong{font-size:.92rem;display:block;line-height:1.35}.tool-tab small{line-height:1.45;display:block;margin-top:5px}.tool-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(22px,4vw,47px);box-shadow:var(--shadow)}.tool-card[hidden]{display:none!important}.tool-intro{max-width:740px;margin-bottom:24px}.tool-intro p{color:var(--muted)}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:17px}.field{display:flex;flex-direction:column;gap:7px}.field.full{grid-column:1/-1}.field label,.field legend{font-size:.87rem;font-weight:700}.field input,.field textarea,.field select{width:100%;background:var(--surface2);border:1px solid var(--line);border-radius:11px;color:var(--ink);padding:12px 14px;min-height:46px;outline:0}.field input:focus,.field textarea:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--soft)}.field textarea{resize:vertical;min-height:185px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.84rem;line-height:1.65;direction:ltr;text-align:left}.input-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:20px}.result{margin-top:25px;padding-top:22px;border-top:1px solid var(--line)}.result[hidden]{display:none}.result-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.result-row{padding:15px;border:1px solid var(--line);border-radius:12px;background:var(--surface2);min-width:0}.result-row>span{display:block;color:var(--muted);font-size:.78rem;margin-bottom:8px}.result-value{overflow-wrap:anywhere;white-space:pre-wrap;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.81rem;margin:0 0 10px;direction:ltr;text-align:left}.check-list{display:flex;gap:23px;flex-wrap:wrap;margin-top:17px}.check-list label{display:flex;align-items:center;gap:9px;font-size:.9rem}.check-list input{accent-color:var(--accent);width:17px;height:17px}.code-output{background:var(--surface2);padding:14px;border:1px solid var(--line);border-radius:10px;white-space:pre-wrap;overflow-wrap:anywhere;direction:ltr;text-align:left;font:.82rem/1.65 ui-monospace,SFMono-Regular,Consolas,monospace}.preview{aspect-ratio:16/9;width:min(100%,690px);margin-top:15px;background:var(--ink);border-radius:14px;overflow:hidden}.preview iframe{width:100%;height:100%;border:0}.thumb-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.thumb-item{background:var(--surface2);border:1px solid var(--line);padding:12px;border-radius:13px;min-width:0}.thumb-item img{aspect-ratio:16/9;object-fit:cover;width:100%;border-radius:9px;background:var(--bg2)}.thumb-item p{margin:10px 0;display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap}.thumb-item .btn{width:100%}.notice{border-inline-start:3px solid var(--orange);padding:10px 13px;background:var(--surface2);font-size:.87rem;color:var(--muted);margin-top:16px}.error{color:#bb4433!important;font-size:.9rem;margin:10px 0 0;font-weight:700}.error:empty{display:none}html[data-theme=dark] .error{color:#ffaaa0!important}.chapter-result{white-space:pre-wrap}.how-section{padding:85px 0}.how-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.how-item{border-top:1px solid var(--line);padding-top:22px}.step-number{font-size:.9rem;font-weight:800;color:var(--accent);margin-bottom:14px}.how-item p{color:var(--muted)}.story{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:70px;padding:28px 0 95px}.story img{border-radius:24px;height:380px;width:100%;object-fit:cover}.story p{font-size:1.05rem;color:var(--muted)}.info-section{border-top:1px solid var(--line);padding:65px 0 90px}.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:55px}.info-grid p{color:var(--muted)}.site-footer{background:var(--ink);color:var(--bg);padding:45px 0 25px}.footer-top{display:flex;align-items:flex-start;justify-content:space-between;gap:30px;flex-wrap:wrap}.site-footer a{text-decoration:underline;text-underline-offset:4px}.footer-nav{display:flex;gap:20px;flex-wrap:wrap}.footer-bottom{margin-top:34px;padding-top:23px;border-top:1px solid color-mix(in srgb,var(--bg),transparent 70%);display:flex;align-items:flex-start;justify-content:space-between;gap:20px;color:color-mix(in srgb,var(--bg),transparent 25%);font-size:.82rem}.footer-bottom p{max-width:720px;margin:0}.subpage{padding:95px 0 120px;min-height:57vh}.subpage .article{max-width:780px}.subpage .article p{font-size:1.05rem;color:var(--muted);line-height:1.85}.subpage .article h2{font-size:1.45rem;margin-top:30px}.toast{position:fixed;bottom:22px;inset-inline-end:22px;background:var(--ink);color:var(--bg);border-radius:12px;padding:12px 20px;z-index:90;box-shadow:var(--shadow);max-width:min(380px,calc(100vw - 40px));font-size:.88rem}.toast[hidden]{display:none}.contact-note{padding:16px 20px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
@media(max-width:1000px){.hero{gap:26px}.tool-picker{grid-template-columns:repeat(2,1fr)}.header-nav{gap:14px}.hero-photo img{height:450px}.float-note{inset-inline-start:8px}}
@media(max-width:760px){.container{width:min(100% - 32px,1200px)}.header-inner{min-height:70px;flex-wrap:wrap;gap:10px;padding-block:9px}.brand{font-size:1.2rem}.brand-mark{width:34px;height:34px;border-radius:10px}.header-nav{order:3;width:100%;justify-content:center;gap:24px;padding:5px 0}.header-controls{margin-inline-start:auto}.select-wrap{padding:7px 5px;gap:4px}.select-wrap select{max-width:93px;font-size:.78rem}.hero{padding:48px 0;grid-template-columns:1fr}.hero-photo img{height:360px}.hero h1{font-size:clamp(2.5rem,12vw,4.2rem)}.tools-bg{padding:55px 0 65px}.tool-picker{gap:9px}.tool-tab{padding:12px 9px}.tab-icon{width:31px;height:31px}.tool-tab strong{font-size:.83rem}.tool-tab small{font-size:.7rem}.form-grid,.result-grid,.thumb-grid,.how-grid,.story,.info-grid{grid-template-columns:1fr}.story{gap:25px;padding-bottom:65px}.story img{height:330px}.how-section{padding:60px 0}.info-section{padding:45px 0}.footer-bottom{flex-direction:column}}
@media(max-width:420px){.header-nav{gap:14px}.header-nav a{font-size:.82rem}.brand{font-size:1.08rem}.select-wrap select{max-width:76px}.tool-picker{grid-template-columns:1fr 1fr}.tool-tab{gap:7px}.tab-icon{display:none}.hero-photo img{height:285px}.tool-card{padding:18px}.check-list{gap:12px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
html[data-theme=simple] .float-note,html[data-theme=simple] .hero-photo:after{display:none}html[data-theme=retro] h1,html[data-theme=retro] h2{letter-spacing:-.02em}