:root{--paper:#fff8e1;--card:#fff;--ink:#3b2f1e;--muted:#74654f;--line:#ecdcb4;--green:#3b2f1e;--green-2:#c2502f;--green-soft:#fff3c4;--s1:#ff7a59;--s2:#f0a500;--s3:#4cb38a;--s4:#3d9ad1;--s5:#7b6be0;--s6:#c45fb5;--sunny:#ffd54a;--outline:#3b2f1e;--tint:var(--green);--sun:#ff7a59;--sky:#e6f2ff;--display:"Jua", "Gowun Dodum", sans-serif;--body:"Gowun Dodum", system-ui, -apple-system, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif}body[data-stage="1"]{--tint:var(--s1)}body[data-stage="2"]{--tint:#a57a22}body[data-stage="3"]{--tint:#557c50}body[data-stage="4"]{--tint:var(--s4)}body[data-stage="5"]{--tint:var(--s5)}body[data-stage="6"]{--tint:var(--s6)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--paper);color:var(--ink);font-family:var(--body);word-break:keep-all;overflow-wrap:anywhere;margin:0;font-size:16.5px;line-height:1.75}a{color:var(--green-2);text-underline-offset:3px}img,svg{max-width:100%}h1,h2,h3{font-family:var(--display);letter-spacing:-.01em;text-wrap:balance;line-height:1.35}h1{margin:0 0 .4em;font-size:clamp(1.7rem,5vw,2.4rem)}h2{margin:2em 0 .6em;font-size:1.45rem}h3{margin:1.6em 0 .4em;font-size:1.15rem}p{margin:0 0 1em}.wrap{max-width:980px;padding-left:max(16px, env(safe-area-inset-left));padding-right:max(16px, env(safe-area-inset-right));margin:0 auto}.narrow{max-width:760px}.muted{color:var(--muted)}.small{font-size:.88rem}.site-header{background:var(--green);color:#f6f1e7;position:relative}.head-row{flex-wrap:wrap;align-items:center;gap:18px;padding-top:12px;padding-bottom:10px;display:flex}.brand{color:inherit;align-items:center;gap:10px;text-decoration:none;display:flex}.logo{width:34px;height:30px}.brand-name{font-family:var(--display);font-size:1.35rem;font-weight:700}.nav{scrollbar-width:none;gap:4px;max-width:100%;margin-left:auto;display:flex;overflow-x:auto}.nav::-webkit-scrollbar{display:none}.nav a{color:#f6f1e7;white-space:nowrap;border-radius:999px;padding:6px 11px;font-size:.95rem;text-decoration:none}.nav a[aria-current=page]{color:var(--green);background:#f6f1e7;font-weight:700}.spines{grid-template-columns:repeat(6,1fr);height:8px;display:grid}.sp1{background:var(--s1)}.sp2{background:var(--s2)}.sp3{background:var(--s3)}.sp4{background:var(--s4)}.sp5{background:var(--s5)}.sp6{background:var(--s6)}@media (width<=640px){.head-row{gap:8px}.nav{width:calc(100% + 12px);margin-left:-6px}}main{padding:28px 0 56px}.page-head{margin-bottom:20px}.eyebrow{color:var(--tint);letter-spacing:.04em;margin:0 0 6px;font-size:.85rem;font-weight:700}.lede{color:#3a362f;max-width:46em;font-size:1.08rem}.crumbs{color:var(--muted);margin-bottom:10px;font-size:.85rem}.crumbs a{color:var(--muted)}.bookmark{background:var(--card);border:1px solid var(--line);border-left:0;border-radius:0 10px 10px 0;margin:18px 0 26px;padding:14px 18px 14px 26px;position:relative}.bookmark:before{content:"";background:var(--tint);clip-path:polygon(0 0,100% 0,100% 100%,50% 92%,0 100%);width:10px;position:absolute;top:-6px;bottom:-6px;left:0}.bookmark p{margin:.2em 0}.bookmark strong{color:var(--tint)}.chip{color:#fff;white-space:nowrap;border-radius:999px;align-items:center;gap:6px;padding:2px 10px;font-size:.82rem;font-weight:700;text-decoration:none;display:inline-flex}.chip.st1{background:var(--s1)}.chip.st2{background:#b48a35}.chip.st3{background:#5f8a5a}.chip.st4{background:var(--s4)}.chip.st5{background:var(--s5)}.chip.st6{background:var(--s6)}.tag{color:var(--muted);border:1px solid var(--line);background:var(--card);border-radius:999px;margin:0 4px 4px 0;padding:1px 9px;font-size:.8rem;display:inline-block}.ladder{flex-direction:column;gap:8px;margin:18px 0;display:flex}.rung{color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:14px;grid-template-columns:54px 1fr auto;align-items:center;gap:14px;text-decoration:none;display:grid;overflow:hidden}.rung .num{color:#fff;font-family:var(--display);align-self:stretch;place-items:center;font-size:1.5rem;font-weight:700;display:grid}.rung .txt{min-width:0;padding:10px 0}.rung .txt b{font-family:var(--display);font-size:1.1rem}.rung .txt span{color:var(--muted);font-size:.9rem;display:block}.rung .lv{text-align:right;color:var(--muted);white-space:nowrap;padding-right:14px;font-size:.85rem}.rung{transition:transform .15s,box-shadow .15s}.rung:hover{transform:translate(4px);box-shadow:0 4px 12px #7850141a}.rung.r1 .num{background:var(--s1)}.rung.r2 .num{background:var(--s2)}.rung.r3 .num{background:var(--s3)}.rung.r4 .num{background:var(--s4)}.rung.r5 .num{background:var(--s5)}.rung.r6 .num{background:var(--s6)}.rung.r1{margin-right:0}.rung.r2{margin-left:3%}.rung.r3{margin-left:6%}.rung.r4{margin-left:9%}.rung.r5{margin-left:12%}.rung.r6{margin-left:15%}@media (width<=640px){.rung{grid-template-columns:44px 1fr}.rung .lv{text-align:left;grid-column:2;margin-top:-6px;padding:0 0 10px}.rung.r2,.rung.r3,.rung.r4,.rung.r5,.rung.r6{margin-left:0}}.shelf{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin:14px 0 24px;display:grid}.spine-card{color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:10px;gap:0;min-height:96px;text-decoration:none;transition:transform .15s,box-shadow .15s;display:flex;overflow:hidden}.spine-card .band{flex:none;width:14px}.spine-card .body{min-width:0;padding:10px 12px}.spine-card b{font-family:var(--display);font-size:1.04rem;line-height:1.35;display:block}.spine-card .ko{color:var(--muted);font-size:.85rem;display:block}.spine-card .lv{color:var(--muted);margin-top:6px;font-size:.8rem;display:block}.spine-card:hover{transform:translateY(-2px);box-shadow:0 6px 14px #7850141f}.band.b1{background:var(--s1)}.band.b2{background:var(--s2)}.band.b3{background:var(--s3)}.band.b4{background:var(--s4)}.band.b5{background:var(--s5)}.band.b6{background:var(--s6)}.shelf-head{border-bottom:1px solid var(--green);flex-wrap:wrap;align-items:baseline;gap:10px;margin-top:2em;padding-bottom:4px;display:flex}.shelf-head h2{margin:0}.lvbox{background:var(--line);border:1px solid var(--line);border-radius:10px;grid-template-columns:repeat(3,1fr);gap:1px;margin:16px 0;display:grid;overflow:hidden}.lvbox div{background:var(--card);padding:10px 12px}.lvbox dt{color:var(--muted);font-size:.8rem}.lvbox dd{margin:0;font-size:1.05rem;font-weight:700}@media (width<=520px){.lvbox{grid-template-columns:1fr}.lvbox div{justify-content:space-between;gap:10px;display:flex}}.table-wrap{border:1px solid var(--line);background:var(--card);border-radius:10px;margin:12px 0 20px;overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.93rem}th,td{text-align:left;border-bottom:1px solid var(--line);vertical-align:top;padding:9px 11px}th{white-space:nowrap;background:#fbedd2;font-weight:700}tr:last-child td{border-bottom:0}td.n{white-space:nowrap;font-variant-numeric:tabular-nums}.booklist{gap:8px;margin:12px 0 20px;padding:0;list-style:none;display:grid}.booklist li{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 14px}.booklist .bt{font-weight:700}.booklist .bm{color:var(--muted);flex-wrap:wrap;gap:4px 14px;font-size:.9rem;display:flex}.booklist .bm a{color:var(--muted)}.note-grid{gap:12px;margin:16px 0;display:grid}.note{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 16px}.note h3{margin:0 0 6px;font-size:1.02rem}.note.warn{background:#fff7ee;border-color:#e7c7a8}.note p{margin:0}.next-row{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;display:grid}.tool{background:var(--card);border:2px solid var(--line);border-radius:18px;margin:16px 0 28px;padding:18px}.tool label{margin:0 0 6px;font-weight:700;display:block}.field{margin-bottom:14px}.row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}input[type=number],input[type=text],select{font:inherit;color:var(--ink);background:#fff;border:1px solid #cbbfa6;border-radius:8px;width:100%;min-width:0;max-width:340px;padding:10px 12px}.seg{flex-wrap:wrap;gap:6px;margin-bottom:14px;display:flex}.seg button,.btn{font:inherit;color:var(--ink);cursor:pointer;background:#fff;border:1px solid #cbbfa6;border-radius:999px;padding:8px 14px}.seg button[aria-pressed=true]{background:var(--green);border-color:var(--green);color:#fff;font-weight:700}.btn{text-decoration:none;display:inline-block}.btn.primary{background:var(--sun);color:var(--ink);border-color:#c9a64e;font-weight:700;box-shadow:0 2px #c9a64e}.btn.primary:hover{transform:translateY(-1px);box-shadow:0 3px #c9a64e}.btn.primary:active{transform:translateY(2px);box-shadow:0 1px #c9a64e}.btn.big{padding:14px 22px;font-size:1.15rem}.result{border-top:2px dashed var(--line);margin-top:16px;padding-top:16px}.result .big-num{font-family:var(--display);color:var(--green);font-size:1.9rem;font-weight:700;line-height:1.2}.out-grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px;margin:10px 0;display:grid}.out{background:var(--paper);border-radius:10px;padding:10px 12px}.out .k{color:var(--muted);font-size:.8rem}.out .v{font-size:1.1rem;font-weight:700}.meter{background:linear-gradient(90deg, var(--s1), var(--s2), var(--s3), var(--s4), var(--s5), var(--s6));border-radius:999px;height:14px;margin:26px 0 8px;position:relative}.meter i{background:var(--ink);border-radius:2px;width:4px;height:30px;position:absolute;top:-8px;transform:translate(-2px)}.counter{font-family:var(--display);text-align:center;margin:6px 0;font-size:3rem;font-weight:700}.prose{max-width:760px}.prose h2{border-bottom:2px solid var(--line);padding-bottom:4px}.prose ul,.prose ol{padding-left:1.3em}.prose li{margin:.25em 0}.prose blockquote{border-left:4px solid var(--tint);background:var(--card);margin:1em 0;padding:10px 16px}.prose .answer{background:var(--green-soft);border-radius:10px;padding:12px 16px;font-size:1.08rem}.prose .tip{background:#fff1c7;border-radius:10px;padding:12px 16px}.prose .tip:before{content:"집에서 해 보기 ";color:#8a5a00;font-weight:700}.prose figure{margin:1.4em 0}.prose figcaption{color:var(--muted);margin-top:4px;font-size:.85rem}.prose .source{color:var(--muted);margin-top:2em;font-size:.85rem;font-style:italic}.post-meta{color:var(--muted);font-size:.9rem}.guide-list{gap:10px;padding:0;list-style:none;display:grid}.guide-list a{background:var(--card);border:1px solid var(--line);color:var(--ink);border-radius:14px;padding:12px 16px;text-decoration:none;transition:border-color .15s;display:block}.guide-list a b{font-family:var(--display);font-size:1.08rem;display:block}.guide-list a span{color:var(--muted);font-size:.92rem}.hero{grid-template-columns:1.2fr 1fr;align-items:start;gap:24px;display:grid}.quick{background:#f3f1ec;border:1px solid #ddd3c2;border-radius:10px;padding:16px 18px}.quick h2{margin:0 0 8px;font-size:1.15rem}@media (width<=800px){.hero{grid-template-columns:1fr}}.site-footer{border-top:1px solid var(--line);color:var(--muted);background:#ece4d3;padding:28px 0 40px;font-size:.88rem}.foot-cols{grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:16px;display:grid}.foot-cols nav{flex-direction:column;gap:3px;display:flex}.foot-cols strong{color:var(--ink)}.foot-cols a{color:var(--muted);text-decoration:none}.foot-cols a:hover{text-decoration:underline}@media (width<=640px){.foot-cols{grid-template-columns:1fr 1fr}}@media print{.site-header,.site-footer,.nav,.no-print,ins.adsbygoogle{display:none!important}body{background:#fff;font-size:12pt}main{padding:0}.tool,.note,.booklist li,.table-wrap{break-inside:avoid}}.prose .example{background:var(--card);border:1px solid var(--line);border-radius:10px;margin:1em 0;padding:12px 16px}.prose .example:before{content:attr(data-label);color:var(--green-2);margin-bottom:4px;font-weight:700;display:block}.prose .example p{margin:.2em 0}.prose table{font-size:.92rem}.prose>table{border:1px solid var(--line);background:var(--card);border-radius:10px;display:block;overflow-x:auto}.talk{margin:12px 0 8px;padding-left:1.4em}.talk li{margin:0 0 12px}.talk-en{margin:0 0 2px;font-weight:600}.talk li p.small{margin:0}.more-books{margin:4px 0 16px}.more-books summary{cursor:pointer;border:1px solid var(--line);background:var(--card);border-radius:8px;padding:8px 14px;font-weight:600;display:inline-block}.more-books[open] summary{margin-bottom:8px}@media print{.more-books>summary{display:none}}.guide-list a:hover{border-color:var(--s2)}.hero{position:relative}.hero:before{content:"";pointer-events:none;z-index:-1;background:radial-gradient(circle,#d9a84e24,#0000 70%);border-radius:50%;width:220px;height:220px;position:absolute;inset:-20px -40px auto auto}.booklist li{align-items:flex-start;gap:12px;display:flex}.booklist .bx{flex:1;min-width:0}.cv{object-fit:cover;background:var(--line);border-radius:3px;flex:none;width:56px;height:84px;box-shadow:0 1px 3px #1f2c4a2e}.cv-none{display:block}.spine-card{align-items:stretch}.spine-card .body{flex:1}.sc-cv{object-fit:cover;border-radius:3px;flex:none;align-self:center;width:52px;height:78px;margin:9px 10px 9px 0;box-shadow:0 1px 3px #1f2c4a2e}.cover-row{grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:14px 12px;margin:16px 0 22px;display:grid}.cover-row figure{margin:0}.cover-row img{aspect-ratio:2/3;object-fit:cover;background:var(--line);border-radius:4px;width:100%;height:auto;display:block;box-shadow:0 2px 6px #1f2c4a2e}.cover-row figcaption{color:var(--ink);margin-top:6px;font-size:.8rem;line-height:1.4}.cover-row figcaption span{color:var(--muted);display:block}.cover-row a{color:inherit;text-decoration:none}h1,h2,h3,.brand-name{font-weight:400}.site-header{background:var(--sunny);color:var(--ink);border-bottom:4px dashed #f0a500}.spines{display:none}.brand-name{font-size:1.55rem}.nav a{color:var(--ink);background:#fff3c4;font-size:.92rem;font-weight:700}.nav a:hover{background:#fff}.nav a[aria-current=page]{background:var(--ink);color:var(--sunny)}a{color:#c2502f}.btn{border:2px solid var(--outline);font-weight:700}.btn.primary{background:var(--s1);color:#fff;border:2px solid var(--outline);box-shadow:3px 3px 0 var(--outline);font-family:var(--display);font-weight:400}.btn.primary:hover{box-shadow:4px 4px 0 var(--outline);transform:translate(-1px,-1px)}.btn.primary:active{box-shadow:1px 1px 0 var(--outline);transform:translate(2px,2px)}.tool,.note,.booklist li,.guide-list a,.spine-card,.rung,.table-wrap,.quick,.bookmark{border:2px solid var(--outline);box-shadow:3px 3px 0 var(--outline)}.note.warn{border-color:var(--outline);background:#ffe7dd}.quick{background:#e3f7ee;border-radius:18px}.tool{border-radius:20px}.guide-list a,.note,.booklist li,.spine-card,.rung{border-radius:16px}th{background:#fff3c4}.cv,.sc-cv{border:2px solid var(--outline);box-shadow:2px 2px 0 var(--outline);border-radius:6px}.cover-row img{border:2px solid var(--outline);box-shadow:3px 3px 0 var(--outline);border-radius:10px}.site-footer{background:#ffecb0;border-top:4px dashed #f0a500}.hero:before{display:none}.tiles{grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin:18px 0 10px;display:grid}.tile{border:3px solid var(--outline);box-shadow:4px 4px 0 var(--outline);color:var(--ink);border-radius:20px;flex-direction:column;gap:2px;min-width:0;padding:14px;text-decoration:none;transition:transform .12s;display:flex}.tile:hover{transform:translate(-2px,-2px)}.tile b{font-family:var(--display);font-size:1.15rem;font-weight:400}.tile span{opacity:.8;font-size:.85rem}.tile .ico{margin-bottom:4px;font-size:1.6rem;line-height:1}.tile.t1{background:#ffb4a2}.tile.t2{background:#a8e6cf}.tile.t3{background:#ffd3b6}.tile.t4{background:#b5d8ff}.tile.t5{background:#e2c2ff}.tile.t6{background:#fff3a8}.bgrid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:22px 18px;margin:14px 0 26px;display:grid}.bcard{min-width:0;color:var(--ink);text-decoration:none;display:block}.bcard .cvw{aspect-ratio:2/3;border:3px solid var(--outline);box-shadow:4px 4px 0 var(--outline);background:#fff3c4;border-radius:14px;transition:transform .12s;display:block;overflow:hidden;transform:rotate(-1deg)}.bcard:nth-child(2n) .cvw{transform:rotate(1.2deg)}.bcard:hover .cvw{transform:rotate(0)translateY(-3px)}.bcard img{object-fit:cover;width:100%;height:100%;display:block}.bcard .noimg{text-align:center;height:100%;font-family:var(--display);place-items:center;padding:10px;font-size:1.05rem;line-height:1.3;display:grid}.bcard .t{margin-top:9px;font-size:.92rem;font-weight:700;line-height:1.35;display:block}.bcard .lvs{flex-wrap:wrap;gap:4px;margin-top:4px;display:flex}.bcard .lvs i{background:var(--sunny);border-radius:999px;padding:0 7px;font-size:.75rem;font-style:normal}.bcard .lvs i+i{background:#a8e6cf}.bcard .lvs i+i+i{background:#e2c2ff}.bcard .one{color:var(--muted);margin-top:4px;font-size:.8rem;line-height:1.45;display:block}@media (width<=520px){.bgrid{grid-template-columns:repeat(2,1fr);gap:18px 14px}}.chips{flex-wrap:wrap;gap:6px;margin:8px 0 12px;display:flex}.chips a,.chips span{border:2px solid var(--outline);color:var(--ink);white-space:nowrap;background:#fff;border-radius:999px;padding:3px 12px;font-size:.85rem;text-decoration:none}.chips a[aria-current=true],.chips .on{background:var(--ink);color:var(--paper)}.sub-h{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:10px;margin-top:1.8em;display:flex}.sub-h h2,.sub-h h3{margin:0}.bdetail{border:3px solid var(--outline);box-shadow:6px 6px 0 var(--outline);background:#fff;border-radius:24px;grid-template-columns:200px 1fr;gap:26px;margin:10px 0 26px;padding:22px;display:grid}.bdetail .cvw{aspect-ratio:2/3;border:3px solid var(--outline);background:#fff3c4;border-radius:12px;overflow:hidden}.bdetail .cvw img{object-fit:cover;width:100%;height:100%;display:block}.bdetail h1{margin:0}.bdetail .by{color:var(--muted);margin:2px 0 12px}.facts{flex-wrap:wrap;gap:6px;margin:0 0 12px;padding:0;list-style:none;display:flex}.facts li{border:2px solid var(--outline);background:#fff3c4;border-radius:10px;padding:2px 10px;font-size:.85rem}.bcols{grid-template-columns:repeat(3,1fr);gap:14px;margin:16px 0;display:grid}.bcols>div{border-radius:16px;min-width:0;padding:14px 16px}.bcols h2{margin:0 0 6px;font-size:1.1rem}.bcols ul{margin:0;padding-left:1.1em}.bcols>div:first-child{background:#ffe7dd}.bcols>div:nth-child(2){background:#e3f7ee}.bcols>div:nth-child(3){background:#e6f0ff}@media (width<=760px){.bdetail{grid-template-columns:1fr}.bdetail .cvw{max-width:180px}.bcols{grid-template-columns:1fr}}.hero .stack{justify-content:center;align-items:flex-end;padding-top:10px;display:flex}.hero .stack img{aspect-ratio:2/3;object-fit:cover;border:3px solid var(--outline);width:30%;max-width:130px;box-shadow:4px 4px 0 var(--outline);border-radius:10px}.hero .stack img:first-child{transform:rotate(-8deg)translate(14px)}.hero .stack img:nth-child(2){z-index:1;transform:translateY(-14px)}.hero .stack img:nth-child(3){transform:rotate(8deg)translate(-14px)}.hero h1{font-size:clamp(2rem,5.6vw,2.9rem)}.bookmark:before{display:none}.bookmark{border-left:2px solid var(--outline);border-radius:16px;padding-left:18px}.bdetail .bwide{grid-column:1/-1}.bdetail .bwide .bcols{margin-top:0}.nbt{min-width:620px}.nbt td,.nbt th{white-space:nowrap;vertical-align:top}.nbt td:nth-child(2){white-space:normal;min-width:220px}.post-cards{gap:14px;margin:16px 0;padding:0;list-style:none;display:grid}.post-cards a{background:var(--card);border:2px solid var(--outline);box-shadow:3px 3px 0 var(--outline);color:var(--ink);border-radius:18px;align-items:center;gap:16px;padding:14px;text-decoration:none;display:flex}.post-cards a:hover{transform:translate(-1px,-1px)}.pc-covers{flex:none;display:flex}.pc-covers img{aspect-ratio:2/3;object-fit:cover;border:2px solid var(--outline);background:var(--line);border-radius:4px;width:58px;height:auto}.pc-covers img+img{margin-left:-26px}.pc-covers img:first-child{transform:rotate(-6deg)}.pc-covers img:nth-child(3){transform:rotate(6deg)}.pc-body{flex-direction:column;gap:3px;min-width:0;display:flex}.pc-body b{font-family:var(--display);font-size:1.12rem;font-weight:400;line-height:1.35}.pc-body span{color:var(--muted);font-size:.88rem}.pc-body .pc-kind{color:var(--green-2);font-size:.78rem;font-weight:700}@media (width<=520px){.pc-covers img{width:44px}.pc-covers img+img{margin-left:-22px}}