:root{--bg:#ffffff;--panel:#fff;--border:#e5e7eb;--text:#111111;--muted:#6b7280;--accent:#111111;--accent-hover:#242424;--accent-soft:#f5f5f5;--accent-strong:#111111;--danger:#dc2626;--shadow:0 1px 2px rgba(0,0,0,.05),0 4px 12px rgba(0,0,0,.08)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);line-height:1.6;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Apple SD Gothic Neo","Malgun Gothic",sans-serif}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.site-header{background:var(--panel);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50;min-height:70px}.site-header .inner{width:100%;margin:0;padding:12px 24px;display:flex;align-items:center;gap:16px;flex-wrap:nowrap}.site-header .logo{font-weight:700;font-size:18px;color:var(--accent);white-space:nowrap;flex:none}.site-header nav{display:flex;gap:2px;flex:1 1 auto;min-width:0;overflow-x:auto;flex-wrap:nowrap;scrollbar-width:thin}.site-header nav::-webkit-scrollbar{height:4px}.site-header nav::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.site-header nav a{font-size:13.5px;font-weight:500;color:var(--muted);padding:6px 10px;border-radius:8px;white-space:nowrap;flex:none;transition:background .12s,color .12s}.site-header nav a:hover{background:#f1f5f9;text-decoration:none;color:var(--text)}.site-header nav a.active{color:var(--accent-strong);background:var(--accent-soft);font-weight:600}.site-header .header-right{margin-left:auto;display:flex;align-items:center;gap:10px;flex:none}.site-header .privacy-chip{font-size:11.5px;font-weight:500;color:#374151;background:var(--accent-soft);border:1px solid var(--border);padding:4px 9px;border-radius:999px;white-space:nowrap}
/* header-right(언어전환+배지)가 flex:none이라 좁은 화면에서 안 줄어들어 페이지 전체 가로 스크롤을 유발함 — 배지부터 숨겨서 공간 확보 */
@media (max-width: 640px) { .site-header .privacy-chip { display: none; } }.lang-switch-link{display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:8px;padding:4px 10px;font-size:12px;font-weight:500;color:var(--muted);white-space:nowrap;transition:border-color .12s,color .12s}.lang-switch-link:hover{border-color:#d1d5db;color:var(--accent);text-decoration:none}.share-row{display:flex;justify-content:center;margin:48px 0}.share-btn{font:inherit;display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);border-radius:8px;background:var(--panel);color:var(--muted);padding:7px 14px;font-size:14px;font-weight:500;cursor:pointer;transition:border-color .12s,color .12s}.share-btn:hover{border-color:#d1d5db;color:var(--accent)}main.tool{max-width:896px;margin:0 auto;padding:32px 20px 28px}.tool h1{font-size:28px;font-weight:600;letter-spacing:-.8px;margin:0;text-align:left}.tool .sub{text-align:left;color:#475569;margin:8px 0 0;font-size:18px}.tool-card{margin-top:24px;padding:24px;border:1px solid var(--border);border-radius:16px;background:var(--panel)}.breadcrumb{max-width:896px;margin:16px auto 0;padding:0 20px;font-size:13px;color:var(--muted)}.breadcrumb a{color:var(--muted)}.breadcrumb a:hover{color:var(--accent)}.hero{max-width:896px;margin:0 auto;padding:88px 24px 56px;text-align:center}.hero-badge{display:inline-block;background:var(--accent-soft);color:#374151;font-size:13px;font-weight:500;padding:4px 12px;border-radius:9999px;margin-bottom:20px}.hero h1{font-size:52px;font-weight:600;letter-spacing:-1.8px;line-height:1.1;color:var(--text);margin:0 0 16px}.hero .sub{font-size:18px;line-height:1.55;color:var(--muted);margin:0 0 28px}.hero-cta{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}@media (max-width:860px){.hero{padding:56px 20px 40px}.hero h1{font-size:34px;letter-spacing:-1px}}.btn{font:inherit;font-size:14px;border:1px solid var(--border);background:var(--panel);color:var(--text);padding:9px 16px;border-radius:8px;cursor:pointer;display:inline-flex;align-items:center;gap:7px;transition:background .12s,border-color .12s}.btn:hover:not(:disabled){background:#f0f1f3}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover:not(:disabled){background:var(--accent-hover)}.btn.lg{font-size:14px;font-weight:600;padding:10px 20px}.content{max-width:896px;margin:0 auto;padding:10px 20px 40px}.content>*:first-child{margin-top:0}.content a{color:var(--accent);text-decoration:none}.content a:hover{text-decoration:underline}.content h2{font-size:20px;font-weight:600;letter-spacing:-.5px;color:var(--text);margin:32px 0 14px;padding:0;border:0;display:flex;align-items:center;gap:12px}.content h2[class^="s-"]::before,.content .guide-head::before{flex:none;width:40px;height:40px;border-radius:12px;background:var(--accent-soft);display:inline-flex;align-items:center;justify-content:center;font-size:18px;line-height:1}.content h2.s-how::before{content:"📋"}.content h2.s-faq::before{content:"💬"}.content h2.s-more::before{content:"🧩"}.content h2.s-about::before{content:"🧰"}.content .guide-usecase .guide-head::before{content:"🎯"}.content .guide-safe .guide-head::before{content:"🛡️"}.content .guide{margin:36px 0 10px}.content .guide-head{font-size:20px;font-weight:600;letter-spacing:-.5px;color:var(--text);margin:0 0 10px;padding:0;border:0;display:flex;align-items:center;gap:12px}.content .guide-head::before{content:"💡"}.content .guide-intro{font-size:15px;color:var(--muted);line-height:1.75;margin:0 0 18px}.content .guide-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}.content .tip{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:20px 22px;box-shadow:none;transition:border-color .15s ease,transform .15s ease,box-shadow .15s ease}.content .tip:hover{border-color:#d1d5db;transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.06)}.content .tip h3{display:flex;align-items:center;gap:10px;font-size:15.5px;font-weight:600;color:var(--text);margin:0 0 8px;padding:0;border:0}.content .tip h3 .ico{flex:none;width:34px;height:34px;border-radius:10px;background:var(--accent-soft);display:inline-flex;align-items:center;justify-content:center;font-size:17px;line-height:1}.content .tip p{margin:0;font-size:14.5px;line-height:1.65;color:var(--muted)}.content p,.content li{font-size:15px;color:#475569}.content .lead{font-size:16px;line-height:1.75;color:#334155;margin:4px 0 8px}.content .guide-card{margin:32px 0;border-radius:16px;border:1px solid var(--border);background:var(--panel);padding:24px;transition:border-color .15s,box-shadow .15s}.content .guide-card:hover{border-color:#d1d5db;box-shadow:0 1px 3px rgba(0,0,0,.08)}.content .guide-card>h2{margin:0;padding:0;border:0}.content .guide-card p{margin:14px 0 0}.content .guide-card ul{list-style:disc;margin:14px 0 0;padding-left:22px;display:flex;flex-direction:column;gap:10px;font-size:16px;line-height:1.6;color:#334155}.content .guide-card ul strong{color:var(--text)}.content .guide-card ul::marker,.content .guide-card li::marker{color:#9ca3af}.content .guide-ico{flex:none;width:40px;height:40px;border-radius:12px;background:var(--accent-soft);display:inline-flex;align-items:center;justify-content:center;font-size:18px;line-height:1}.content ol{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:20px 24px 20px 46px;margin:12px 0}.content ol li{margin:4px 0}.content ul:not(.tool-grid):not(.filelist){padding-left:22px}.faq-list{margin:16px 0 0;display:flex;flex-direction:column;gap:16px}.faq-item{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:20px}.faq-item dt{margin:0;font-size:17px;font-weight:600;color:var(--text)}.faq-item dd{margin:6px 0 0;font-size:16px;line-height:1.7;color:#334155}.why-list{list-style:none;margin:16px 0 0;padding:0;display:flex;flex-direction:column;gap:12px;font-size:17px;line-height:1.8;color:#334155}.why-list strong{color:var(--text)}.content h2.s-ex::before{content:"🧪"}.io-example{margin:16px 0 0;display:flex;flex-direction:column;gap:12px}.io-example .io-row{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:14px 16px}.io-example .io-label{display:inline-block;font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:8px}.io-example pre{margin:0;font:13.5px/1.65 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--text);white-space:pre-wrap;word-break:break-all;overflow-x:auto}.io-example .io-note{margin:10px 0 0;font-size:14px;color:var(--muted);line-height:1.6}.content .ref-table{overflow-x:auto;margin:16px 0;border:1px solid var(--border);border-radius:12px}.content .ref-table table{border-collapse:collapse;width:100%;font-size:14px}.content .ref-table th,.content .ref-table td{padding:8px 13px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}.content .ref-table th{background:var(--accent-soft);color:var(--text);font-weight:700}.content .ref-table td{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#334155}.content .ref-table tr:last-child td{border-bottom:0}.content .ref-table tbody tr:hover td{background:var(--panel)}.content .ref-note{font-size:13px;color:var(--muted);margin:8px 0 0;line-height:1.6}.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin:28px 0}.cat-grid a{display:block;background:var(--accent-soft);border:0;border-radius:12px;padding:26px;text-decoration:none;color:var(--text);transition:transform .15s ease,box-shadow .15s ease}.cat-grid a:hover{box-shadow:var(--shadow);transform:translateY(-2px);text-decoration:none}.cat-grid a .ico{font-size:32px}.cat-grid a .t{font-weight:700;font-size:19px;margin:14px 0 6px}.cat-grid a .d{font-size:14.5px;line-height:1.5;color:var(--muted)}.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin:16px 0}.tool-grid a{display:block;background:var(--accent-soft);border:0;border-radius:12px;padding:24px;text-decoration:none;color:var(--text);transition:transform .15s ease,box-shadow .15s ease}.tool-grid a:hover{box-shadow:var(--shadow);transform:translateY(-2px);text-decoration:none}.tool-grid a .ico{font-size:30px}.tool-grid a .t{font-weight:600;font-size:18px;margin:12px 0 6px}.tool-grid a .d{font-size:15px;line-height:1.5;color:var(--muted)}.site-footer{text-align:center;color:#a1a1aa;font-size:14px;padding:48px 24px;line-height:1.7;background:#101010;min-height:60px}.site-footer p{margin:0}.site-footer p+p{margin-top:4px}.site-footer a{color:#a1a1aa}.site-footer a:hover{color:#fff}.site-footer .feedback-btn{background:#1a1a1a;border:1px solid #333;color:#fff;box-shadow:none}.site-footer .feedback-btn:hover{background:#242424;transform:none}.sister-row{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:14px}.sister-row a{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);border-radius:999px;padding:6px 14px;font-size:12.5px;color:var(--muted);background:var(--bg)}.sister-row a:hover{border-color:#d1d5db;color:var(--accent);text-decoration:none}.toast{position:fixed;top:24px;right:24px;max-width:min(340px,calc(100vw - 48px));transform:translateY(-12px);background:#1f2328;color:#fff;padding:10px 18px;border-radius:8px;font-size:13px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:400}.toast.show{opacity:1;transform:translateY(0)}.toast.toast-accent{background:var(--accent)}.toast.toast-danger{background:var(--danger)}.site-footer p.feedback-row{margin-top:14px}.feedback-btn{font:inherit;display:inline-flex;align-items:center;gap:6px;border:0;border-radius:999px;background:var(--accent);color:#fff;padding:9px 20px;font-size:14px;font-weight:600;cursor:pointer;box-shadow:none;transition:background .12s,transform .12s}.feedback-btn:hover{background:var(--accent-hover);transform:translateY(-1px)}.feedback-overlay{position:fixed;inset:0;background:rgba(15,23,42,.5);display:flex;align-items:center;justify-content:center;z-index:300;padding:20px}.feedback-overlay[hidden]{display:none}.feedback-dialog{background:var(--panel);border-radius:16px;padding:24px;width:100%;max-width:420px;box-shadow:var(--shadow)}.feedback-dialog h3{margin:0 0 14px;font-size:17px}.feedback-dialog textarea{width:100%;min-height:110px;resize:vertical;border:1px solid var(--border);border-radius:10px;padding:10px 12px;font:inherit;font-size:14px;color:var(--text);background:var(--bg)}.feedback-dialog textarea:focus{outline:0;border-color:var(--accent)}.feedback-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:14px}.field-row{display:flex;flex-direction:column;gap:6px;margin:14px 0}.field-row label{font-size:13px;color:var(--muted);font-weight:600}.field-row textarea,.field-row input[type=text]{font:14px/1.6 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;padding:12px 14px;border:1px solid var(--border);border-radius:10px;color:var(--text);background:var(--bg);resize:vertical;width:100%}.field-row textarea:focus,.field-row input:focus{outline:0;border-color:var(--accent)}.opts-row{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin:14px 0}.opts-row label{font-size:13.5px;color:var(--text);display:inline-flex;align-items:center;gap:6px}.opts-row input[type=range]{width:160px}.result-box{position:relative;margin-top:10px;background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:14px 46px 14px 14px;font:14px/1.6 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--text);word-break:break-all;white-space:pre-wrap}.result-box .copy-btn{position:absolute;top:8px;right:8px;border:1px solid var(--border);background:var(--panel);border-radius:6px;width:30px;height:30px;cursor:pointer;font-size:13px}.result-box .copy-btn:hover{border-color:#d1d5db}.hash-row{display:flex;align-items:center;gap:10px;margin:10px 0}.hash-row .algo{flex:none;width:88px;font-size:12.5px;font-weight:700;color:var(--muted)}.err-box{margin-top:10px;background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;border-radius:10px;padding:12px 14px;font-size:13.5px}.badge-row{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}.badge-row .badge{background:var(--accent-soft);color:var(--accent-strong);border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600}.anchor-ad{position:fixed;left:0;right:0;bottom:0;z-index:150;background:rgba(255,255,255,.97);border-top:1px solid var(--border);box-shadow:0 -2px 10px rgba(0,0,0,.07);display:flex;justify-content:center;align-items:center;padding:6px 0;min-height:96px;overflow-x:auto}body.has-anchor{padding-bottom:108px}.anchor-ad .anchor-ad-mo{display:none}@media(max-width:767px){.anchor-ad .anchor-ad-pc{display:none}.anchor-ad .anchor-ad-mo{display:block}}
/* 모바일 전체메뉴 (2026-09-15 추가) — 640px 이하에서 로고+카테고리 nav를 햄버거로 교체 */
.mobile-menu-btn{display:none;flex:none;width:34px;height:34px;border-radius:9px;border:1px solid var(--border);background:var(--panel);flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:0;cursor:pointer}
.mobile-menu-btn span{display:block;width:16px;height:2px;background:var(--text);border-radius:2px;transition:transform .18s ease,opacity .18s ease}
.mobile-menu-btn.open{background:var(--accent-soft);border-color:#d1d5db}
.mobile-menu-btn.open span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.mobile-menu-btn.open span:nth-child(2){opacity:0}
.mobile-menu-btn.open span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.mobile-menu{display:none}
@media (max-width:640px){
.site-header .logo,.site-header nav{display:none}
.mobile-menu-btn{display:flex}
body.mobile-menu-open{overflow:hidden}
.mobile-menu{display:block;position:fixed;left:0;right:0;bottom:0;z-index:200;background:var(--panel);overflow-y:auto;padding:16px 20px 28px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:transform .18s ease,opacity .18s ease}
.mobile-menu.open{transform:translateY(0);opacity:1;pointer-events:auto}
}
.mm-home{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;margin-bottom:14px;border-bottom:1px solid var(--border)}
.mm-home-logo{font-weight:700;font-size:16px;color:var(--accent)}
.mm-home-tag{font-size:11.5px;font-weight:700;color:var(--muted)}
.mm-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.mm-item{display:flex;align-items:center;gap:8px;background:#f8f9fa;border:1px solid var(--border);border-radius:10px;padding:10px 9px;font-size:12.5px;font-weight:600;color:var(--text)}
.mm-item:hover{border-color:#d1d5db}
.mm-item.active{background:var(--accent-soft);border-color:#d1d5db;color:var(--accent-strong)}
.mm-item .ico{font-size:16px;flex:none}
.mm-foot{display:flex;align-items:center;justify-content:flex-end;gap:10px;margin-top:20px;padding-top:16px;border-top:1px solid var(--border)}
.mm-foot .privacy-chip{display:inline-block}
.site-footer p.privacy-note{color:#a1a1aa;font-size:14.5px}
.content .updates-list{list-style:none;margin:24px 0 0;padding:0}.content .updates-item{position:relative;padding:0 0 32px 26px;border-left:2px solid var(--border)}.content .updates-item:last-child{padding-bottom:2px}.content .updates-item::before{content:"";position:absolute;left:-7px;top:3px;width:12px;height:12px;border-radius:50%;background:var(--accent);border:2px solid var(--panel)}.content .updates-date{font-size:13px;font-weight:700;color:var(--accent-strong);letter-spacing:.02em}.content .updates-item h2{margin:6px 0 10px}.content .updates-entries{display:flex;flex-direction:column;gap:10px}.content .updates-entry{display:flex;gap:10px;align-items:flex-start;font-size:15px;line-height:1.6;color:#334155}.content .updates-entry .tag{flex:none;font-size:12px;font-weight:700;border-radius:999px;padding:2px 9px;margin-top:2px}.content .updates-entry .tag-new{background:#ecfdf5;color:#047857}.content .updates-entry .tag-improve{background:var(--accent-soft);color:var(--accent-strong)}.content .updates-entry a{font-weight:600}