:root{--teal:#0f766e;--teal-dark:#115e59;--mint:#f0fdfa;--ink:#222;--muted:#5f6368;--paper:#fafaf7;--line:#e5e7eb;--reading-size:22px;--shell:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:#fff;color:var(--ink);font-family:Arial,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;font-size:var(--reading-size);line-height:1.8;word-break:keep-all;overflow-wrap:anywhere;padding-bottom:100px}body[data-reading-size=small]{--reading-size:20px}body[data-reading-size=large]{--reading-size:26px}a{color:inherit;text-decoration:none}a:hover{color:var(--teal-dark)}button,input,select,textarea{font:inherit;line-height:1.5}button,input,select{min-height:48px}button{cursor:pointer;background:white;border:1px solid #a7b7b4;border-radius:8px;padding:10px 18px;color:var(--ink);font-size:20px;font-weight:700}button:hover{background:var(--mint)}input,select,textarea{max-width:100%;border:1px solid #81928e;border-radius:8px;padding:13px 16px;background:white;color:var(--ink);font-size:max(20px,var(--reading-size))}textarea{width:100%;min-height:150px}a,button,input,select,textarea,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #0f766e;outline-offset:5px}button:disabled{cursor:default;opacity:.55}img{max-width:100%;height:auto}p{margin:0 0 1.15em}h1,h2,h3{line-height:1.38;letter-spacing:-.045em;margin:0 0 .7em;font-weight:800}h1{font-size:46px}h2{font-size:30px}h3{font-size:25px}ul,ol{padding-left:1.4em}li+li{margin-top:.55em}time,.meta,.muted{color:var(--muted)}time,.meta{font-size:16px}.page-shell{width:min(var(--shell),calc(100% - 64px));margin-inline:auto}.reading-shell{width:min(800px,calc(100% - 48px));margin-inline:auto}.skip-link{position:absolute;top:-100px;left:20px;background:#fff;padding:12px;z-index:100}.skip-link:focus{top:10px}[hidden]{display:none!important}
.utility-bar{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);font-size:16px;color:var(--muted)}.brand-row{position:relative;display:flex;align-items:center;justify-content:center;gap:24px;padding:26px 0 30px;min-height:150px}.brand{display:flex;gap:16px;align-items:center;line-height:1.15;color:var(--teal-dark)}.brand b{display:block;text-transform:uppercase;font-size:21px;letter-spacing:.07em}.brand strong{display:block;font-size:52px;font-weight:900;letter-spacing:.12em;line-height:1.08}.brand img{width:64px;height:64px}.header-search-toggle,.menu-toggle{position:absolute;border:0;background:none;font-size:18px;padding:12px 0}.header-search-toggle{right:0}.menu-toggle{left:0}.menu-toggle:before{content:'☰';margin-right:9px;font-size:24px}.header-search-toggle:before{content:'⌕';margin-right:8px;font-size:28px}.header-search{padding:16px 0 28px}.header-search label{display:block;font-size:26px;font-weight:800;margin-bottom:10px}.header-search form>div{display:flex;gap:10px}.header-search input{flex:1;min-width:0}.header-search button{background:var(--teal);color:white;padding-inline:30px}.primary-nav{border-top:2px solid var(--teal-dark);border-bottom:1px solid var(--line)}.nav-scroll{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}.primary-nav a{font-size:18px;font-weight:800;min-height:58px;display:flex;align-items:center;padding:8px 0}.primary-nav a:hover{color:var(--teal)}.primary-nav.is-expanded .nav-scroll{padding-block:20px;display:grid;grid-template-columns:repeat(5,1fr)}.font-tools{display:flex;justify-content:flex-end;align-items:center;gap:7px;padding-block:16px;font-size:16px}.font-tools>span{margin-right:8px}.font-tools button{font-size:16px;padding:8px 12px;min-height:48px;border-color:var(--line);border-radius:4px}.font-tools button[aria-pressed=true]{border-color:var(--teal);background:var(--mint);color:var(--teal-dark)}
.home-intro{padding:16px 0 26px;display:flex;align-items:end;justify-content:space-between;gap:20px}.eyebrow{color:var(--teal);font-size:17px;font-weight:800;letter-spacing:.07em;margin-bottom:9px}.home-intro h1{margin:0;font-size:42px}.home-intro p:last-child{color:var(--muted);font-size:20px;margin:0}.hero-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,1fr);gap:40px;border-top:1px solid var(--line);padding:32px 0 42px}.feature-story{padding-right:28px;border-right:1px solid var(--line)}.feature-story h2{font-size:40px;line-height:1.45;max-width:720px;margin-bottom:20px}.feature-story>.feature-summary{color:#454b49;margin-bottom:24px}.feature-story .feature-meta{display:flex;gap:16px;font-size:16px;color:var(--muted);margin:20px 0}.hero-aside{background:var(--mint);border-top:4px solid var(--teal);padding:26px 28px}.hero-aside h2{font-size:28px}.hero-aside>p{font-size:20px;color:var(--muted)}.quick-list{list-style:none;padding:0;margin:0}.quick-list li{margin:0;border-top:1px solid #cfe5df}.quick-list a{display:flex;justify-content:space-between;gap:12px;padding:16px 0;font-size:21px;font-weight:700}.quick-list a:after{content:'↗';color:var(--teal);font-size:20px;flex-shrink:0}.age-section{background:var(--paper);border-block:1px solid var(--line);padding:26px 0 30px;margin-bottom:50px}.age-section h2{font-size:23px}.age-links{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.age-links a{display:block;background:white;border:1px solid #d2dad6;padding:18px 16px;font-size:19px;line-height:1.6;border-radius:6px}.age-links strong{display:block;color:var(--teal-dark);font-size:26px;line-height:1.2;margin-bottom:8px}.home-section{margin-block:0 56px}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;border-bottom:2px solid var(--teal-dark);padding-bottom:14px;margin-bottom:4px}.section-heading h2{margin:0}.section-heading a{font-size:18px;color:var(--teal-dark);font-weight:700;min-height:48px;display:flex;align-items:center}.section-caption{font-size:17px;color:var(--muted);margin:12px 0 0}.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 32px}.article-card{padding:28px 0;border-bottom:1px solid var(--line);min-width:0}.article-card h3{font-size:25px;line-height:1.5;margin:8px 0 13px}.article-card h3 a{display:block;min-height:48px}.card-category{color:var(--teal);font-size:17px;font-weight:700;margin:0;line-height:1.4}.card-summary{font-size:20px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0 0 13px}.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:42px}.topic-block .article-card{padding:24px 0}.topic-block .article-card h3{font-size:24px}.latest-list .article-card{display:grid;grid-template-columns:110px 1fr;gap:0 24px;padding:24px 0}.latest-list .card-category{grid-row:1/4;padding-top:10px}.latest-list h3{margin-top:0}.latest-list time{grid-column:2}.tool-banner{background:var(--teal-dark);color:white;padding:32px 36px;margin:45px 0;display:flex;justify-content:space-between;align-items:center;gap:28px}.tool-banner h2{margin-bottom:8px}.tool-banner p{margin:0;font-size:20px}.tool-banner a{background:white;color:var(--teal-dark);padding:14px 22px;border-radius:6px;font-size:20px;font-weight:800;white-space:nowrap}.tool-banner a:hover{background:#e1f9f1}
.breadcrumb{font-size:16px;margin:10px 0 28px;color:var(--muted)}.breadcrumb ol{padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:9px;margin:0}.breadcrumb li{margin:0}.breadcrumb li+li:before{content:'›';margin-right:9px;color:#7e8582}.breadcrumb a{padding-block:8px}.article-header{border-bottom:1px solid var(--line);padding-bottom:28px;margin-bottom:34px}.article-header h1{margin-top:12px}.article-header .meta{display:flex;gap:16px;flex-wrap:wrap}.article-lead,.article-body p,.article-body li,.article-body td,.article-body th,.faq-section p{font-size:var(--reading-size);line-height:1.85}.article-lead{color:#454b49}.article-section{margin:34px 0}.article-section h2{margin:0 0 20px}.article-section h3{margin:26px 0 14px}.article-body section:first-child{margin-top:0}.key-box{background:var(--mint);border-left:4px solid var(--teal);padding:24px 28px;margin:30px 0}.key-box strong{font-size:23px;color:var(--teal-dark)}.key-box p{margin:10px 0 0}.key-box ul{margin-bottom:0}.notice-box{background:var(--paper);border:1px solid var(--line);padding:20px 24px}.article-action{margin:32px 0 42px}.article-action>p{margin-bottom:12px}.article-action>small{font-size:16px;color:var(--muted);display:block;margin-top:12px}.table-scroll{overflow-x:auto;max-width:100%;border:1px solid #c8d5d0;margin:24px 0}table{border-collapse:collapse;width:100%;text-align:left;font-size:var(--reading-size)}th{background:#eaf5ef;color:var(--teal-dark);font-weight:700}td,th{padding:15px 18px;border-right:1px solid #d5dfda;border-bottom:1px solid #d5dfda;min-width:140px;vertical-align:top}tr:nth-child(even) td{background:#fafcfb}.faq-section{margin:42px 0}.faq-section details{border-bottom:1px solid var(--line);padding:18px 0}.faq-section summary{cursor:pointer;font-size:var(--reading-size);font-weight:700;padding:6px 0;line-height:1.6}.faq-section details p{margin:18px 0 4px}.related-section{margin:52px 0}.related-section .article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.related-section .article-card h3{font-size:23px}.article-footer-links{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 20px}.plain-button{display:inline-flex;align-items:center;justify-content:center;border:1px solid #b6cbc4;padding:14px 22px;min-height:52px;border-radius:6px;font-size:20px;font-weight:700;background:#fff;color:var(--teal-dark)}.plain-button:hover{background:var(--mint)}.verified-date{font-size:16px;color:var(--muted);margin:30px 0}.listing-header{margin:8px 0 36px;padding-bottom:28px;border-bottom:2px solid var(--teal)}.listing-header p{max-width:850px;color:var(--muted)}.listing-header h1{margin-bottom:14px}.search-form{margin:28px 0}.search-form label{display:block;font-size:27px;font-weight:800;margin-bottom:12px}.search-form .search-input-row{display:flex;gap:10px}.search-input-row input{flex:1;min-width:0}.search-input-row button{background:var(--teal);color:white;padding-inline:28px}.search-chips{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}.search-chips a{padding:8px 15px;border:1px solid var(--line);border-radius:30px;font-size:18px;min-height:48px}.search-chips a:hover{background:var(--mint)}.pagination{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:32px 0 52px}.pagination a{display:flex;justify-content:center;align-items:center;min-width:48px;min-height:48px;border:1px solid #b6cbc4;border-radius:5px;padding:6px 12px;font-size:20px}.pagination [aria-current=page]{background:var(--teal);color:white}.empty-state{padding:36px;background:var(--paper);border:1px solid var(--line);margin:24px 0}.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.tool-card{padding:24px;border:1px solid #c8dcd6;background:var(--mint);display:block}.tool-card h2{font-size:25px}.tool-card p{font-size:20px;color:var(--muted);margin:0}.tool-intro{margin-bottom:26px}.tool-intro .notice-box{font-size:20px}.site-footer{margin-top:65px;background:var(--paper);border-top:1px solid var(--line);padding:40px 0 65px}.footer-grid{display:grid;grid-template-columns:2fr 1fr;gap:50px}.footer-brand{font-size:24px;font-weight:800;color:var(--teal-dark)}.footer-grid p{font-size:18px;color:var(--muted);max-width:590px;margin:12px 0}.footer-grid nav{display:flex;gap:10px 28px;flex-wrap:wrap;align-content:start}.footer-grid nav a{font-size:18px;min-height:48px;padding:8px 0}.share-dock{position:fixed;right:22px;bottom:22px;z-index:20;display:flex;flex-direction:column;gap:8px;max-width:230px}.share-dock button{font-size:18px;min-height:52px;box-shadow:0 3px 12px #00000012}.share-kakao{background:#fee500!important;border:1px solid #dcc800!important;color:#251b00!important}.share-copy{background:white}.toast{position:fixed;left:50%;bottom:100px;transform:translateX(-50%);width:max-content;max-width:calc(100% - 40px);z-index:80;background:#173c32;color:white;font-size:20px;padding:16px 24px;border-radius:8px;box-shadow:0 6px 22px #0003;line-height:1.6}.copy-fallback{position:fixed;inset:auto 20px 100px;margin:auto;max-width:620px;background:white;border:2px solid var(--teal);padding:22px;z-index:90;box-shadow:0 8px 28px #0003}.copy-fallback input{width:100%;font-size:20px;margin:12px 0}.copy-fallback p{margin:0;font-size:20px}.error-page{padding:55px 0 85px;min-height:380px}.error-code{font-size:18px;color:var(--teal);letter-spacing:.15em}.noscript-notice{padding:20px;background:#fff8df;font-size:20px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:1650px){.share-dock{right:30px}}@media(max-width:1649px){body{padding-bottom:100px}.share-dock{left:0;right:0;bottom:0;flex-direction:row;max-width:none;gap:12px;justify-content:center;border-top:1px solid #d7dedb;background:#fffffff5;padding:12px 22px calc(12px + env(safe-area-inset-bottom,0px))}.share-dock button{width:220px;box-shadow:none}.toast{bottom:100px}}
@media(min-width:1100px) and (max-width:1649px){.share-dock{left:auto;right:12px;bottom:12px;flex-direction:column;background:transparent;border:0;padding:0;gap:8px;max-width:170px}.share-dock button{width:170px;font-size:17px}.reading-shell{transform:translateX(-65px)}body:has(.article-grid) .reading-shell{transform:none}.reading-shell:has(.article-body),.reading-shell:has(.tool-intro){margin-left:max(32px,calc((100% - 1100px)/2));transform:none}.reading-shell+.site-footer{margin-top:65px}}
@media(max-width:1050px){.page-shell{width:calc(100% - 40px)}.primary-nav .nav-scroll{justify-content:flex-start;gap:0 26px}.primary-nav a{min-height:52px}.hero-grid{grid-template-columns:1.3fr 1fr;gap:24px}.hero-aside{padding:24px 20px}.feature-story{padding-right:22px}.feature-story h2{font-size:34px}.age-links{grid-template-columns:repeat(3,1fr)}.article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.home-intro{display:block}.home-intro p:last-child{margin-top:12px}.reading-shell{transform:none;margin-inline:auto}.primary-nav.is-expanded .nav-scroll{grid-template-columns:repeat(3,1fr)}}
@media(max-width:700px){.page-shell{width:calc(100% - 36px)}.reading-shell{width:calc(100% - 36px)}h1{font-size:34px}h2{font-size:28px}h3{font-size:24px}.utility-bar{font-size:16px;padding:10px 0}.utility-bar>span{display:none}.brand-row{min-height:146px;padding:22px 0 52px;gap:10px}.brand img{width:42px;height:42px}.brand{gap:11px}.brand b{font-size:15px;letter-spacing:.06em}.brand strong{font-size:35px;letter-spacing:.11em}.header-search-toggle,.menu-toggle{bottom:3px;font-size:18px;padding:3px 0;min-height:48px}.primary-nav .nav-scroll{gap:0 22px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:thin;padding-bottom:2px}.primary-nav a{flex-shrink:0;font-size:18px;min-height:54px}.primary-nav.is-expanded .nav-scroll{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 14px;overflow:visible;padding-block:12px}.font-tools{justify-content:flex-start;gap:6px;padding-block:12px;flex-wrap:wrap}.font-tools>span{font-size:16px}.font-tools button{padding:7px 9px}.home-intro{padding-top:10px;padding-bottom:22px}.home-intro h1{font-size:32px}.home-intro p:last-child{font-size:20px;line-height:1.7}.eyebrow{font-size:16px}.hero-grid{display:block;padding-top:24px}.feature-story{border:0;padding:0;margin-bottom:30px}.feature-story h2{font-size:32px;letter-spacing:-.05em}.feature-story .feature-summary{font-size:var(--reading-size)}.hero-aside{padding:24px}.hero-aside h2{font-size:26px}.hero-aside>p{font-size:20px}.quick-list a{font-size:20px}.age-section{margin-bottom:34px}.age-links{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.age-links a{font-size:18px;padding:16px 12px}.age-links a:last-child{grid-column:1/-1}.age-links strong{font-size:24px}.age-links a:last-child strong{display:inline;margin-right:12px}.article-grid,.topic-grid,.tool-grid{grid-template-columns:1fr}.article-card{padding:23px 0}.article-card h3{font-size:25px}.section-heading{gap:12px;align-items:center}.section-heading h2{font-size:28px}.section-heading a{font-size:17px}.home-section{margin-bottom:38px}.topic-grid{gap:34px}.tool-banner{display:block;padding:26px 23px;margin:32px 0}.tool-banner a{display:flex;margin-top:22px;text-align:center;justify-content:center;white-space:normal}.latest-list .article-card{display:block}.latest-list .card-category{padding:0;margin-bottom:10px}.related-section .article-grid{grid-template-columns:1fr}.article-header{padding-bottom:22px;margin-bottom:26px}.article-header h1{font-size:34px}.breadcrumb{margin:8px 0 22px;line-height:1.7}.key-box{padding:20px;margin:26px 0}.notice-box{padding:20px}.article-action{margin:28px 0 35px}.article-section{margin:30px 0}.table-scroll{margin-inline:0}.footer-grid{display:block}.footer-grid nav{margin-top:24px;gap:8px 24px}.site-footer{padding:30px 0 40px;margin-top:45px}.share-dock{gap:8px;padding-inline:12px}.share-dock button{width:50%;font-size:18px;padding:11px 7px;min-height:52px}.toast{font-size:20px;bottom:calc(95px + env(safe-area-inset-bottom,0px));padding:14px 18px}.search-input-row button{padding:12px 16px}.search-chips{gap:8px}.search-chips a{font-size:18px;padding:8px 12px}.article-footer-links{display:grid;grid-template-columns:1fr}.listing-header{margin-bottom:24px}.error-page{padding-block:30px}.empty-state{padding:24px}}
@media(min-width:1100px) and (max-width:1649px){body:has(main.page-shell) .share-dock,body:has(.home-intro) .share-dock{left:0;right:0;bottom:0;flex-direction:row;max-width:none;background:#fffffff5;border-top:1px solid #d7dedb;padding:12px;justify-content:center;gap:12px}body:has(main.page-shell) .share-dock button,body:has(.home-intro) .share-dock button{width:220px;box-shadow:none}}
@media print{.site-header,.font-tools,.share-dock,.site-footer,.toast,.article-action,.article-footer-links{display:none!important}body{font-size:20px;padding:0;color:#000}.reading-shell{width:100%;margin:0;transform:none}.article-header h1{font-size:32px}.article-body p{font-size:20px}.table-scroll{overflow:visible}details{display:block}details>*{display:block}.related-section{break-before:page}}
.share-kakao{display:inline-flex;align-items:center;justify-content:center;gap:9px}.share-kakao img{display:block;width:28px;height:28px;flex:none}
@media(max-width:700px){.primary-nav{display:none}.primary-nav.is-expanded{display:block}.primary-nav.is-expanded .nav-scroll{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));overflow:visible}}