:root{--navy:#0F2D45;--paper:#F5F7F9;--muted:#4B5F6E;--rule:#D3DCE3;--orange:#FF8A5B;--orange-d:#D9481F;--sky:#8FD3F4;--soft:#B9C9D6;--radius:14px;--sans:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic","Segoe UI",system-ui,sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--navy);font:400 1.0625rem/1.75 var(--sans);word-break:keep-all;overflow-wrap:break-word}
a{color:inherit;text-underline-offset:.2em}
a:focus-visible{outline:3px solid var(--orange-d);outline-offset:3px;border-radius:2px}
.slab a:focus-visible{outline-color:var(--orange)}
.skip{position:absolute;left:-999px;top:0;background:var(--navy);color:#fff;padding:.6rem 1rem;z-index:10}
.skip:focus{left:0}
.wrap{max-width:70rem;margin:0 auto;padding:0 1.25rem}

.top{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.75rem 2rem;padding:1.25rem 0}
.logo{display:block;line-height:0}
.logo svg{display:block;height:2.5rem;width:auto}
.top nav{display:flex;flex-wrap:wrap;gap:.25rem 1.5rem;font-size:.9375rem}
.top nav a{text-decoration:none;padding:.35rem 0}
.top nav a:hover{text-decoration:underline}

.hero{display:grid;grid-template-columns:minmax(0,1fr);gap:2.5rem;padding:1.5rem 0 3.5rem}
h1{margin:0 0 1.25rem;font-size:clamp(2rem,1.3rem + 3vw,3.5rem);line-height:1.2;letter-spacing:-.035em;font-weight:800;text-wrap:balance}
.lede{max-width:36rem;margin:0 0 1rem;font-size:1.125rem}
.state{max-width:36rem;margin:1.75rem 0 0;padding-left:.9rem;border-left:3px solid var(--navy);color:var(--muted);font-size:.9375rem;line-height:1.7}

.slab{background:var(--navy);color:#fff;border-radius:var(--radius)}
.fig{margin:0;padding:1.25rem 1.25rem 1.5rem}
.fig svg{display:block;width:100%;height:auto}
.fig-title{margin:1.25rem 0 0;font-weight:700;font-size:1.0625rem;line-height:1.5}
.times{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.75rem;margin:1rem 0 0;padding:1rem 0 0;border-top:1px solid rgba(255,255,255,.22)}
.times dt{color:var(--soft);font-size:.875rem;line-height:1.4}
.times dd{margin:.15rem 0 0;font-size:1.375rem;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.3}
.fig-note{margin:1rem 0 0;color:var(--soft);font-size:.875rem;line-height:1.7}

.sec{padding:3rem 0}
h2{margin:0 0 1.75rem;font-size:clamp(1.5rem,1.1rem + 1.6vw,2.125rem);line-height:1.3;letter-spacing:-.03em;font-weight:800;text-wrap:balance}
h3{margin:0;font-size:1.0625rem;line-height:1.5;font-weight:800}

.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:minmax(0,1fr);gap:1.75rem 2.5rem}
.steps li{padding-top:1rem;border-top:3px solid var(--navy)}
.steps li:last-child{border-top-color:var(--orange-d)}
.steps h3{display:flex;gap:.6rem;align-items:baseline;margin-bottom:.35rem}
.steps h3 span{color:var(--muted);font-variant-numeric:tabular-nums}
.steps p{margin:0;color:var(--muted);font-size:.96rem;line-height:1.7}

.rows{margin:0}
.rows>div{display:grid;grid-template-columns:minmax(0,1fr);gap:.3rem 2rem;padding:1.25rem 0;border-top:1px solid var(--rule)}
.rows>div:last-child{border-bottom:1px solid var(--rule)}
.rows dt{font-weight:800;line-height:1.5}
.rows dd{margin:0;max-width:44rem}
.note{margin:1.25rem 0 0;color:var(--muted);font-size:.875rem}

.safety{display:grid;grid-template-columns:minmax(0,1fr);gap:1.5rem 3rem;margin:1.5rem 0;padding:2rem 1.5rem}
.safety h2{margin:0}
.rules{list-style:none;margin:0;padding:0;display:grid;gap:1.1rem}
.rules li{padding-top:1.1rem;border-top:1px solid rgba(255,255,255,.2)}
.rules li:first-child{padding-top:0;border-top:0}

.foot{margin-top:2rem;padding:2rem 0 3.5rem;border-top:1px solid var(--rule);color:var(--muted);font-size:.9375rem}
.foot p{margin:0 0 .5rem}

.sk{fill:none;stroke:#fff;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.br,.ax{fill:none;stroke:var(--soft);stroke-width:2}
.tk{fill:none;stroke-width:5;stroke-linecap:round}
.tk.spk{stroke:var(--sky)}
.tk.drm{stroke:var(--orange)}
.lb{fill:#fff;font:700 24px var(--sans)}
.lb.sm{font-size:22px}
.lb.big{font-size:30px;font-weight:800}
.lb.sky{fill:var(--sky)}
.lb.org{fill:var(--orange)}
.lb.mute{fill:var(--soft);font-weight:500}
.dot{fill:#fff}
.arc{fill:none;stroke-width:5;stroke-linecap:round;opacity:0;animation-timing-function:linear;animation-fill-mode:both}
.arc-drum{stroke:var(--orange);animation-name:go-drum;animation-duration:2.8s;animation-delay:.6s}
.arc-spk{stroke:var(--sky);animation-name:go-spk;animation-duration:2s;animation-delay:.6s}
.t-spk{animation:show .3s 2.6s both}
.t-drm{animation:show .3s 3.4s both}
.t-gap{animation:show .4s 3.5s both}
@keyframes go-drum{0%{opacity:0;transform:translateX(0)}5%{opacity:1}92%{opacity:1}100%{opacity:0;transform:translateX(520px)}}
@keyframes go-spk{0%{opacity:0;transform:translateX(0)}6%{opacity:1}90%{opacity:1}100%{opacity:0;transform:translateX(371px)}}
@keyframes show{from{opacity:0}to{opacity:1}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.arc{display:none}.t-spk,.t-drm,.t-gap{animation:none}}

@media (min-width:48rem){
.wrap{padding:0 2rem}
.sec{padding:4.5rem 0}
.steps{grid-template-columns:repeat(3,minmax(0,1fr));gap:2.5rem}
.rows>div{grid-template-columns:13rem minmax(0,1fr);gap:2rem}
.safety{grid-template-columns:minmax(0,5fr) minmax(0,7fr);padding:3rem}
.fig{padding:1.75rem 1.75rem 2rem}
}
@media (min-width:62rem){
.hero{grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);gap:4rem;align-items:center;padding:2rem 0 4.5rem}
}