.atoz.pf{--ch-pacific:var(--accent);--x-accent:var(--accent);--acc-opt:var(--accent);--x-error:#e5484d;--font-kr:var(--font-body);--ink-max:var(--ink-0);--ink-bright:var(--ink-0);--ink-sub:var(--ink-1);--ink-body:var(--ink-2);--ink-meta:var(--ink-3);--ink-faint:var(--ink-4);--line:var(--rule);--line-strong:var(--rule-2);--glass-fill:#ffffff0b;--t-lead:clamp(16px, 1.4vw, 19px);--t-h2:clamp(32px, 4.2vw, 58px);--r-md:12px;--r-card:18px;--r-lg:24px;--pf-hero-video-scale:1.3;--ease-reveal:cubic-bezier(.22, 1, .36, 1);width:100%}.atoz.pf section+section{border-top:0}.atoz.pf .section-head__title{font-family:var(--font-body);font-weight:600;font-size:var(--t-h2);letter-spacing:-.025em;color:var(--ink-bright);word-break:keep-all;margin:10px 0 0;line-height:1.08}.atoz.pf .section-head__title em{color:inherit;-webkit-text-fill-color:currentColor;background:0 0;padding:0;display:inline}.atoz.pf .section-head__title em:lang(ko){font-weight:700}.atoz.pf .eyebrow:before{display:none}.atoz.pf .btn-pill{color:#000;background:#e5e5e6;padding:14px 26px;font-size:15px;box-shadow:0 8px 24px #0006}.atoz.pf .btn-pill:hover{background:#fff}.atoz.pf .btn-pill--sm{padding:11px 20px;font-size:14px}.atoz.pf .btn-pill--secondary{color:#fff;box-shadow:none;background:#1c1c1c;border-color:#0000}.atoz.pf .btn-pill--secondary:hover{color:#fff;background:#262626;border-color:#0000}.atoz .pf-sec{border-bottom:1px solid var(--line);padding:clamp(90px,11vw,150px) 0}.atoz .pf-hblock{flex-direction:column;align-items:flex-start;gap:20px;margin-bottom:clamp(44px,5.4vw,72px);display:flex}.atoz .pf-hblock--split{flex-direction:row;justify-content:space-between;align-items:flex-end;gap:32px}.atoz .pf-hblock__action{flex:none}@media (max-width:920px){.atoz .pf-hblock--split{flex-direction:column;align-items:flex-start}}.atoz .pf-lead{font-family:var(--font-kr);font-size:var(--t-lead);color:var(--ink-body);text-wrap:pretty;max-width:52ch;margin:0;line-height:1.7}.atoz .pf-dim{color:#999}.atoz .pf-blue{color:var(--x-accent)}.atoz .pf-star-badge{font-family:var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:#fff;border:1px solid var(--line-strong);vertical-align:3px;border-radius:999px;margin-left:12px;padding:4px 10px;font-size:9.5px}.atoz .pf-chip{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-body);border:1px solid var(--line);white-space:nowrap;border-radius:999px;align-items:center;gap:8px;padding:6px 12px;font-size:12px;display:inline-flex}.atoz .pf-chip__logo{object-fit:contain;opacity:.85;filter:brightness(0)invert(.66);flex:none;width:auto;min-width:17px;max-width:40px;height:17.5px;display:block}.atoz .pf-chip--em .pf-chip__logo{filter:brightness(0)invert(.66)}.atoz .pf-chip__logo--app{filter:none;opacity:1;border-radius:50%}.atoz .pf-chip__logo--crop{object-fit:cover;object-position:left center;width:17.5px}.atoz .pf-chip__wordmark{filter:brightness(0)invert(.66);flex:none;width:auto;max-width:94px;height:17.5px;display:block}.atoz .pf-chip--em .pf-chip__wordmark{filter:brightness(0)invert(.66)}.atoz .pf-tert{font-family:var(--font-kr);color:var(--ink-sub);align-items:center;gap:8px;font-size:14px;transition:color .2s;display:inline-flex}.atoz .pf-tert:hover{color:#fff}.atoz .pf-tert .ar{color:var(--acc-opt);font-family:var(--font-mono)}.atoz .pf-note{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-meta);font-size:10.5px}.atoz .pf-hero{min-height:calc(100vh - var(--hdr-h,68px));min-height:calc(100svh - var(--hdr-h,68px));border-bottom:1px solid var(--line);align-items:center;padding:24px 0;display:flex;position:relative;overflow:hidden}.atoz .pf-hero__grid{pointer-events:none;background-image:linear-gradient(90deg,#ffffff06 1px,#0000 1px);background-size:96px 100%;position:absolute;inset:0;-webkit-mask-image:linear-gradient(#0000,#000 18% 88%,#0000);mask-image:linear-gradient(#0000,#000 18% 88%,#0000)}.atoz .pf-hero__vignette{pointer-events:none;background:radial-gradient(820px 460px at 74%,#ffffff0b,#0000 65%);position:absolute;inset:0}.atoz .pf-hero__layout{grid-template-columns:1.05fr .95fr;align-items:center;gap:clamp(32px,5vw,72px);width:100%;display:grid;position:relative}.atoz .pf-hero__content{position:relative}.atoz .pf-hero__eyebrow{font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-meta);align-items:center;gap:10px;font-size:11px;display:inline-flex}.atoz .pf-hero__eyebrow:before{display:none}.atoz .pf-hero__title{font-family:var(--font-kr);letter-spacing:-.025em;color:var(--ink-max);word-break:keep-all;margin:24px 0 26px;font-size:76px;font-weight:700;line-height:1.15}.atoz .pf-hero__sub{font-family:var(--font-kr);font-size:var(--t-lead);color:var(--ink-sub);max-width:46ch;margin:0 0 36px;line-height:1.7}.atoz .pf-hero__sub .l2{color:var(--ink-body)}.atoz .pf-hero__diagram{position:relative}.atoz .pf-hero__diagram svg{width:100%;height:auto;display:block}.atoz .pf-hero__video{width:calc(120% * var(--pf-hero-video-scale,1));max-width:none;height:auto;max-height:calc(672px * var(--pf-hero-video-scale,1));object-fit:cover;border-radius:var(--r-card);background:0 0;display:block}@keyframes pf-hero-float{0%,to{transform:translateY(0)}50%{transform:translateY(-14px)}}.atoz .pf-iss__grid{grid-template-columns:repeat(3,1fr);align-items:stretch;gap:18px;display:grid}.atoz .pf-iss__card{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);transition:border-color .38s ease, transform .38s var(--ease-reveal), background .38s ease;flex-direction:column;gap:14px;padding:28px;display:flex}.atoz .pf-iss__card:hover{border-color:var(--line-strong);background:var(--bg-2);transform:translateY(-6px)}.atoz .pf-iss__idx{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-meta);justify-content:space-between;font-size:10.5px;display:flex}.atoz .pf-iss__t{font-family:var(--font-kr);letter-spacing:-.015em;color:var(--ink-bright);word-break:keep-all;margin:0;font-size:21px;font-weight:700}.atoz .pf-iss__b{font-family:var(--font-kr);color:var(--ink-body);margin:0;font-size:14.5px;line-height:1.65}.atoz .pf-iss__chips{flex-wrap:wrap;gap:7px;margin-top:auto;display:flex}.atoz .pf-iss__foot{border-top:1px solid var(--line);padding-top:18px}.atoz .pf-stack__grid{grid-template-columns:1fr 1fr;align-items:stretch;gap:18px;display:grid}.atoz .pf-stack__panel{background:var(--bg-1);border:1px solid var(--line-strong);border-radius:var(--r-card);flex-direction:column;display:flex;overflow:hidden}.atoz .pf-stack__phead{justify-content:space-between;align-items:baseline;padding:30px 26px 6px;display:flex}.atoz .pf-stack__phead .t{font-family:var(--font-kr);letter-spacing:-.015em;color:#fff;font-size:22px;font-weight:700}.atoz .pf-stack__phead .t b{color:#fff;font-weight:700}.atoz .pf-stack__phead .t .sub{color:#999;font-weight:500}.atoz .pf-stack__phead .tag{font-family:var(--font-mono);letter-spacing:.3em;text-transform:uppercase;color:var(--ink-meta);font-size:11px}.atoz .pf-stack__flag{filter:saturate(.85);border-radius:50%;flex:none;align-self:center;width:26px;height:26px;display:block;box-shadow:0 0 0 1px #ffffff1f}.atoz .pf-stack__layers{flex-direction:column;flex:1;padding:8px 30px 26px;display:flex}.atoz .pf-stack__layers .pf-chip{gap:9px;padding:10px 18px;font-size:13px}.atoz .pf-layer{grid-template-columns:112px 1fr;align-items:center;gap:16px;padding:28px 0;display:grid;position:relative}.atoz .pf-layer+.pf-layer{border-top:1px dashed #e5484d73}.atoz .pf-layer+.pf-layer:before{content:"✕";background:var(--bg-1);width:21px;height:21px;font-family:var(--font-mono);color:var(--x-error);box-shadow:0 0 0 14px var(--bg-1);border:1px solid #e5484d99;border-radius:6px;place-items:center;font-size:13px;display:grid;position:absolute;top:-11px;left:50%;transform:translate(-50%)}.atoz .pf-layer__k{font-family:var(--font-kr);letter-spacing:.06em;color:#999;font-size:14.5px}.atoz .pf-layer__chips{flex-wrap:wrap;gap:7px;display:flex}.atoz .pf-stack__diag{border-top:1px solid var(--line);align-items:baseline;gap:14px;padding:24px 26px 28px;display:flex}.atoz .pf-stack__diag .ar{font-family:var(--font-mono);color:var(--x-error);flex:none;font-size:16px;font-weight:700}.atoz .pf-stack__diag .tx{font-family:var(--font-kr);color:var(--x-error);word-break:keep-all;font-size:16px;font-weight:600;line-height:1.5}.atoz .pf-stack__note{margin-top:18px}.atoz .pf-gstack{flex:1;grid-template-rows:1fr 1fr 1fr auto;grid-template-columns:1fr 148px;gap:14px;padding:18px 26px 24px;display:grid}.atoz .pf-gstages{display:contents}.atoz .pf-gstages .pf-kq{grid-column:1}.atoz .pf-grail{grid-area:1/2/5;grid-template-rows:subgrid;justify-items:center;row-gap:14px;display:grid}.atoz .pf-grail__node{font-family:var(--font-mono);letter-spacing:.14em;color:var(--ink-bright);background:var(--bg-2);border:1px solid var(--line-strong);white-space:nowrap;border-radius:999px;grid-row:1;align-self:center;padding:7px 13px;font-size:9.5px}.atoz .pf-grail__node--at{grid-row:4}.atoz .pf-grail__conn{flex-direction:column;grid-row:2/4;justify-content:center;align-self:stretch;align-items:center;gap:14px;display:flex}.atoz .pf-grail__chev{flex-direction:column;align-items:center;gap:4px;display:flex}.atoz .pf-grail__chev i{border-right:1.5px solid var(--ink-body);border-bottom:1.5px solid var(--ink-body);opacity:.25;width:9px;height:9px;animation:1.5s ease-in-out infinite pf-chev;transform:rotate(45deg)}.atoz .pf-grail__chev i:nth-child(2){animation-delay:.25s}.atoz .pf-grail__chev i:nth-child(3){animation-delay:.5s}.atoz .pf-grail__chev--up i{transform:rotate(225deg)}.atoz 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.pf-grail__mid{padding:8px;font-size:10px}.atoz .pf-grail__conn{gap:10px}.atoz .pf-grail__chev i{width:7px;height:7px}}.atoz .pf-kstack{flex:1;grid-template-rows:1fr 1fr;grid-template-columns:1fr 1fr;gap:44px 14px;padding:18px 26px 24px;display:grid;position:relative}.atoz .pf-kq{z-index:1;background:var(--bg-2);border:1px solid var(--line);border-radius:12px;flex-direction:column;gap:12px;padding:16px 16px 14px;display:flex;position:relative}.atoz .pf-kq__h{font-family:var(--font-kr);letter-spacing:-.01em;color:var(--ink-bright);align-items:baseline;gap:8px;font-size:14.5px;font-weight:700;display:flex}.atoz .pf-kq__h span{font-family:var(--font-mono);letter-spacing:.14em;color:var(--ink-meta);font-size:9px;font-weight:400}.atoz .pf-kq__chips{flex-wrap:wrap;gap:7px;display:flex}.atoz .pf-kq__chips .pf-chip{gap:6px;padding:6px 11px;font-size:11px}.atoz .pf-kq__chips .pf-chip .pf-chip__logo{min-width:13px;max-width:30px;height:13px}.atoz .pf-kq__warn{font-family:var(--font-kr);color:var(--x-error);word-break:keep-all;border:1px dashed #e5484d73;border-radius:8px;align-items:center;gap:8px;margin-top:auto;padding:8px 11px;font-size:12.5px;font-weight:600;display:flex}.atoz .pf-kq__warn i{width:15px;height:15px;font-style:normal;font-family:var(--font-mono);color:var(--x-error);border:1px solid #e5484d99;border-radius:4px;flex:none;place-items:center;font-size:10px;font-weight:700;display:grid}.atoz .pf-kstack__route{z-index:0;pointer-events:none;width:calc(100% - 52px);height:calc(100% - 42px);position:absolute;inset:18px 26px 24px}.atoz .pf-kstack__route path{fill:none;stroke:#e5484da6;stroke-width:1.5px;stroke-dasharray:4 6;vector-effect:non-scaling-stroke;animation:2.6s linear infinite akFlow}.atoz .pf-kstack__api{z-index:2;font-family:var(--font-mono);letter-spacing:.1em;color:var(--x-error);background:var(--bg-0);white-space:nowrap;border:1px solid #e5484d99;border-radius:999px;padding:6px 13px;font-size:10.5px;animation:1.6s ease-in-out infinite pf-api-blink;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}@keyframes pf-api-blink{0%,to{opacity:1}50%{opacity:.2}}@media (prefers-reduced-motion:reduce){.atoz .pf-kstack__api,.atoz .pf-kstack__route path{animation:none!important}}@media (max-width:920px){.atoz .pf-kstack{grid-template-rows:none;grid-template-columns:repeat(2,minmax(0,1fr));gap:36px 12px}}@media (max-width:560px){.atoz .pf-kstack{gap:32px 10px;padding:14px 14px 20px}.atoz .pf-kstack .pf-kq{gap:10px;padding:12px 10px 11px}.atoz .pf-kq__h{gap:6px;font-size:13px}.atoz .pf-kq__chips{gap:5px}.atoz .pf-kq__chips .pf-chip{gap:5px;padding:5px 8px;font-size:9.5px}.atoz .pf-kq__chips .pf-chip .pf-chip__logo{min-width:11px;height:11px}.atoz .pf-kq__warn{gap:6px;padding:6px 8px;font-size:11px}.atoz .pf-kstack__route{width:calc(100% - 28px);height:calc(100% - 34px);inset:14px 14px 20px}.atoz .pf-kstack__api{padding:5px 10px;font-size:9.5px}}.atoz .pf-byp__grid{grid-template-columns:repeat(3,1fr);align-items:stretch;gap:18px;display:grid}.atoz .pf-byp__card{background:var(--bg-1);border:1px solid var(--line-strong);border-radius:var(--r-card);transition:border-color .38s ease, transform .38s var(--ease-reveal), background .38s ease;flex-direction:column;padding:26px;display:flex}.atoz .pf-byp__card:hover{background:var(--bg-2);border-color:#fff6;transform:translateY(-6px)}.atoz .pf-byp__head{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-meta);justify-content:space-between;margin-bottom:14px;font-size:10.5px;display:flex}.atoz .pf-byp__t{font-family:var(--font-kr);letter-spacing:-.015em;color:var(--ink-bright);word-break:keep-all;min-height:2.4em;margin:0 0 6px;font-size:20px;font-weight:700}.atoz .pf-k{font-family:var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--ink-meta);align-items:center;gap:10px;margin:18px 0 10px;font-size:10px;display:flex}.atoz 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