/* LUEKY 1.0 public site. Korean flag theme: white ground, taegeuk red and blue, black trigram bars.
   System fonts only (no web font download). No inline styles anywhere, so the CSP can forbid them. */
:root{--blue:#0047A0;--blue-dk:#00306b;--blue-sf:#e3ebf6;--red:#CD2E3A;--red-dk:#9b1b26;--red-sf:#fbe6e8;--ink:#111;--ink2:#333;--mut:#5c5c5c;--line:#d6d6d2;--line2:#ececea;--alt:#f7f7f5;--ok:#1e6a44;--ok-sf:#e2f3ea;--warn:#8a4a00;--warn-sf:#fdecd9;--r:6px;
--font:-apple-system,BlinkMacSystemFont,"Segoe UI","Apple SD Gothic Neo","Noto Sans CJK KR","Noto Sans KR","Malgun Gothic","PingFang SC","Hiragino Sans","Noto Sans CJK SC",Roboto,"Helvetica Neue",Arial,sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:80px}
body{margin:0;font:16px/1.55 var(--font);color:var(--ink);background:#fff;overflow-x:hidden}
img,svg,picture,video{max-width:100%;height:auto;display:block}
a{color:var(--blue)}a:hover{color:var(--blue-dk)}
h1,h2,h3{line-height:1.15;margin:0;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(30px,5vw,48px)}h2{font-size:clamp(23px,3vw,30px)}h3,.h3{font-size:18px;font-weight:700}
.h2{font-size:clamp(23px,3vw,30px)}
p{margin:0}ul,ol{margin:0}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.narrow{max-width:820px}.narrow-sm{max-width:480px}
.sr,.hp{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 14px;z-index:99}.skip:focus{left:8px;top:8px}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.mut{color:var(--mut)}.sm{font-size:14px}.grow{flex:1;min-width:0}.right{text-align:right}.center-text{text-align:center}
.k{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:#B3202D;font-weight:800}
.k-inv{color:#ffd5d9}
.lede{font-size:18px;color:var(--ink2);max-width:680px}
.ic{display:inline-block;vertical-align:-4px;flex:none}
.stack{display:flex;flex-direction:column;gap:20px}.stack-sm{display:flex;flex-direction:column;gap:10px}
.row{display:flex;align-items:center;gap:12px}.wrap-row{flex-wrap:wrap}
.row-btns{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.center-row{justify-content:center}
.g2,.g3,.g4{display:grid;gap:20px;grid-template-columns:1fr}
.g-sm{gap:12px}
.center{align-items:center}
.sec{padding:56px 0}.sec-tight{padding-top:28px}
.alt{background:var(--alt)}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap}
.more{font-weight:700;text-decoration:none;display:inline-flex;gap:6px;align-items:center}
/* buttons */
.btn,.btn2{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 20px;border-radius:4px;font:700 15px/1 var(--font);text-decoration:none;cursor:pointer;border:0;text-align:center}
.btn{background:var(--blue);color:#fff}.btn:hover{background:var(--blue-dk);color:#fff}
.btn2{background:#fff;color:var(--ink);border:1.5px solid var(--ink)}.btn2:hover{background:#f1f1ef;color:var(--ink)}
.btn-sm{min-height:38px;padding:0 14px;font-size:14px}.btn-lg{min-height:54px;font-size:17px;padding:0 28px}
.btn-inv{background:transparent;color:#fff;border-color:#fff}.btn-inv:hover{background:rgba(255,255,255,.12);color:#fff}
/* header */
.nav{position:sticky;top:0;z-index:30;background:linear-gradient(90deg,var(--red) 0 50%,var(--blue) 50% 100%) left bottom/100% 3px no-repeat,#fff}
.nav-in{display:flex;align-items:center;gap:14px;min-height:66px;padding-bottom:3px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.14em;font-size:20px;color:var(--ink);text-decoration:none;flex:none}
.logo img{width:40px;height:40px}
.menu{order:3;margin-left:auto}
.menu>summary{list-style:none;cursor:pointer;width:46px;height:46px;display:grid;place-items:center;border-radius:4px}
.menu>summary::-webkit-details-marker{display:none}
.menu-panel{position:absolute;left:0;right:0;top:69px;background:#fff;border-bottom:1px solid var(--line);display:flex;flex-direction:column;padding:8px 20px 16px;box-shadow:0 8px 20px rgba(0,0,0,.08)}
.menu-panel a{padding:12px 0;color:var(--ink);text-decoration:none;font-weight:600;border-bottom:1px solid var(--line2)}
.menu-panel a.on{color:var(--blue)}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.langs{display:none;gap:8px;font-size:13px}.langs a{color:var(--mut);text-decoration:none}.langs a.on{color:var(--ink);font-weight:700}
.nav-login{display:none;color:var(--ink2);text-decoration:none;font-size:14px}
/* hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line2)}
.hero-in{display:grid;gap:36px;padding:48px 20px 56px}
.hero-text{display:flex;flex-direction:column;gap:18px;position:relative;z-index:1}
.hero h1{font-size:clamp(34px,6vw,56px)}
.hero h1 em{font-style:normal;color:var(--red)}
.ko-line{color:var(--mut)}
.proof{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--mut)}
.stars{color:#E5A100;letter-spacing:2px}.stars .off{color:#d9d9d5}
.hero-media{position:relative}
.hero-art{aspect-ratio:1/1;max-width:440px;margin:0 auto;border-radius:50%;background:radial-gradient(circle at 50% 40%,#fff 0 55%,#eef3fa 100%);display:grid;place-items:center;padding:6%}
.hero-art img{width:100%;height:auto}
.hero-pic img,.about-pic img{border-radius:var(--r);aspect-ratio:4/5;object-fit:cover;width:100%}
.tg{display:block;border-radius:50%;transform:rotate(33.7deg);background:radial-gradient(circle at 25% 50%,var(--red) 0 24.5%,transparent 25.5%),radial-gradient(circle at 75% 50%,var(--blue) 0 24.5%,transparent 25.5%),linear-gradient(var(--red) 0 50%,var(--blue) 50% 100%)}
.tg-hero{position:absolute;width:88px;height:88px;left:-14px;bottom:-22px;box-shadow:0 0 0 8px #fff}
.tg-sm{width:52px;height:52px;flex:none}
.gwae{position:absolute;display:none;flex-direction:column;gap:6px;color:var(--ink)}
.gwae i{display:block;width:64px;height:10px;background:currentColor}
.gwae i.s{background:linear-gradient(90deg,currentColor 0 44%,transparent 44% 56%,currentColor 56%)}
.gw1{left:28px;top:28px;transform:rotate(-33.7deg)}.gw2{right:28px;top:28px;transform:rotate(33.7deg)}
.gw3{left:28px;bottom:28px;transform:rotate(33.7deg)}.gw4{right:28px;bottom:28px;transform:rotate(-33.7deg)}
/* stats band */
.stats{background:var(--ink);color:#fff;box-shadow:inset 0 3px 0 var(--red)}
.stats-in{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding:28px 20px}
.stats b{display:block;font-size:30px;font-weight:800}.stats span{color:#c9c9c4;font-size:14px}
/* cards */
.card{border:1px solid var(--line);border-radius:var(--r);padding:20px;background:#fff;color:inherit}
a.card{text-decoration:none;display:flex;flex-direction:column;gap:10px;transition:border-color .15s}
a.card:hover{border-color:var(--ink)}
.alt-card{background:var(--alt)}
.ok-card{background:var(--ok-sf);border-color:#9fd3b6}
.date-card{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;border-left:4px solid var(--blue)}
.date-card.ev{border-left-color:var(--red)}
.course-card .price{font-weight:800;margin-top:auto}
.chip{display:inline-block;padding:4px 10px;border-radius:99px;background:#f0f0ee;font-size:12px;font-weight:700;color:var(--ink2);text-decoration:none;align-self:flex-start;line-height:1.4}
.chip-b{background:var(--blue-sf);color:var(--blue-dk)}.chip-r{background:var(--red-sf);color:var(--red-dk)}
.chip-g{background:var(--ok-sf);color:var(--ok)}.chip-o{background:var(--warn-sf);color:var(--warn)}
a.chip:hover{background:#e4e4e0}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.price-big{font-size:26px;font-weight:800}
.ph-img{background:#eceef1 linear-gradient(135deg,#eef3fa,#f7f7f5);border-radius:var(--r);aspect-ratio:3/2;width:100%}
.cc-img img,.cc-img,.ev-img img,.ev-img,.post-img img,.post-img{border-radius:4px;aspect-ratio:3/2;object-fit:cover;width:100%}
.about-pic.ph-img{aspect-ratio:4/5}
.dokdo-pic img,.dokdo-pic{border-radius:var(--r);aspect-ratio:3/2;object-fit:cover;width:100%}
.course-hero img,.course-hero.ph-img{width:100%;aspect-ratio:16/6;object-fit:cover;border-radius:0;max-height:420px}
/* blue band */
.blue{background:var(--blue);color:#fff}.blue p{color:#e3ebf6}.blue .ph-img{background:#0a3a7a}
.inv-mut{color:#cfdcf0!important}
.invite-band{border-top:1px solid var(--line2)}
.gwae-box{position:relative}
/* map */
.map{margin:0;border:1px solid var(--line);border-radius:var(--r);background:#f6f9fd}
.map svg{width:100%;height:auto}
.map .grat line{stroke:#e2e8f0;stroke-width:1}
.map .coast{fill:none;stroke:#9fb3cc;stroke-width:1.6;stroke-linejoin:round}
.map .pin circle{fill:var(--blue);stroke:#fff;stroke-width:2}
.map .pin.now circle{fill:var(--red)}
.map .pin text{font:700 13px var(--font);fill:var(--ink);paint-order:stroke;stroke:#f6f9fd;stroke-width:4px}
/* review, faq */
.review blockquote{margin:8px 0;font-size:16px}
.reply{background:var(--alt);padding:10px 12px;border-radius:4px}
.faq{padding:0}.faq summary{padding:16px 20px;font-weight:700;cursor:pointer;list-style-position:inside}
.faq-a{padding:0 20px 16px;color:var(--ink2)}.faq-a p+p{margin-top:8px}
/* page header */
.ph{position:relative;overflow:hidden;border-bottom:1px solid var(--line2);padding:40px 0}
.ph::after{content:"";position:absolute;right:56px;top:50%;width:84px;height:60px;transform:translateY(-50%) rotate(-33.7deg);background:linear-gradient(#111 0 0) 0 0/100% 13px no-repeat,linear-gradient(#111 0 0) 0 23px/100% 13px no-repeat,linear-gradient(#111 0 0) 0 46px/100% 13px no-repeat;display:none}
.ph-in{display:flex;flex-direction:column;gap:10px;position:relative;z-index:1;max-width:760px}
.ph-sm{padding:24px 0}
.crumb{font-size:14px;color:var(--mut)}
/* layout with side column */
.side{display:flex;flex-wrap:wrap;gap:32px;align-items:flex-start}
.main{flex:999 1 560px;min-width:0}
.aside{flex:1 1 300px;display:flex;flex-direction:column;gap:16px;min-width:0}
.sticky{position:sticky;top:86px}
/* courses */
.filters{display:flex;flex-wrap:wrap;gap:8px}
.course-row{display:grid;gap:18px;grid-template-columns:1fr}
.cr-side{display:flex;flex-direction:column;gap:8px}
.facts{display:flex;flex-wrap:wrap;gap:6px 18px;color:var(--ink2)}
.fact{padding:14px;display:flex;flex-direction:column}
.prose{color:var(--ink2)}.prose p+p,.prose ul,.prose h2{margin-top:14px}.prose h2{font-size:22px;color:var(--ink)}.prose ul{padding-left:20px}
.ticks{list-style:none;padding:0;display:grid;gap:8px}.ticks li::before{content:"✓";color:var(--blue);font-weight:800;margin-right:8px}
.teacher img{width:48px;height:48px}
/* tables */
.scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.tbl{width:100%;border-collapse:collapse;font-size:15px;min-width:560px}
.tbl th{text-align:left;font-size:12px;color:var(--mut);font-weight:800;padding:10px 12px;border-bottom:2px solid var(--ink);text-transform:uppercase;letter-spacing:.05em}
.tbl td{padding:12px;border-bottom:1px solid var(--line2);vertical-align:top}
.tour-tbl tr.private td{background:var(--alt)}
/* forms */
.form{display:flex;flex-direction:column}
.field{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:700}
.in{min-height:46px;border:1px solid #bdbdb8;border-radius:4px;padding:0 12px;font:400 16px var(--font);background:#fff;color:var(--ink);width:100%}
textarea.in{padding:10px 12px;min-height:120px;resize:vertical}
.in:focus{border-color:var(--blue);outline:2px solid var(--blue-sf)}
.in-sm{min-height:38px;width:auto;font-size:14px}.in-half{max-width:320px}
.req{color:var(--red)}
fieldset{border:0;padding:0;margin:0;min-width:0}legend{padding:0;margin-bottom:8px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:15px;font-weight:400}
.check input{width:20px;height:20px;margin-top:2px;flex:none;accent-color:var(--blue)}
.opt{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);border-radius:4px;padding:12px 14px;cursor:pointer;font-weight:400}
.opt:has(input:checked){border:2px solid var(--blue);padding:11px 13px}
.opt input{margin-top:4px;accent-color:var(--blue)}
.opt span{display:flex;flex-direction:column}.opt small{color:var(--mut);font-size:13px}
.opt.off{opacity:.55;cursor:not-allowed}
.course-pick{align-items:flex-end}
.yn{display:flex;flex-wrap:wrap;gap:6px 18px;border-bottom:1px solid var(--line2);padding-bottom:10px}.yn legend{width:100%;font-weight:600}
.rate{display:flex;flex-wrap:wrap;gap:8px 16px;color:#E5A100}.rate legend{color:var(--ink);font-weight:700}
.alert{border-radius:4px;padding:14px 16px;background:var(--blue-sf);color:var(--blue-dk)}
.alert-err{background:var(--red-sf);color:var(--red-dk)}.alert ul{margin:6px 0 0;padding-left:18px}
.steps{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:10px 24px;counter-reset:s}
.steps li{counter-increment:s;display:flex;align-items:center;gap:8px;font-weight:700;font-size:14px;color:var(--mut)}
.steps li::before{content:counter(s);width:28px;height:28px;border-radius:99px;display:grid;place-items:center;border:1.5px solid #bdbdb8}
.steps li.on{color:var(--ink)}.steps li.on::before{background:var(--blue);border-color:var(--blue);color:#fff}
.steps-v{flex-direction:column}
.nums{padding-left:20px;display:grid;gap:8px}
/* calendar */
.cal-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.cal-month{font-size:22px;min-width:170px;text-align:center}
.legend{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.lg{display:inline-block;padding:4px 10px;border-radius:99px;font-size:12px;font-weight:700;background:#f0f0ee}
.lg.free{background:var(--ok-sf);color:var(--ok)}.lg.course{background:var(--blue-sf);color:var(--blue-dk)}.lg.event{background:var(--red-sf);color:var(--red-dk)}.lg.trip{background:#fff6dc;color:#6b5300}.lg.busy{background:#fff;border:1px dashed #9aa0a6}
.cal-head,.cal-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:4px}
.cal-head span{text-align:center;font-size:12px;font-weight:800;color:var(--mut);padding:6px 0}
.cd{min-height:64px;display:flex;flex-direction:column;gap:2px;padding:6px;border-radius:4px;text-decoration:none;color:var(--ink);border:1px solid var(--line2);background:#fff;overflow:hidden}
.cd b{font-size:14px}.cd small{font-size:10px;line-height:1.25;color:var(--ink2);display:none}
.cd.k-free{background:var(--ok-sf);border-color:#9fd3b6}.cd.k-course{background:var(--blue-sf);border-color:#9cc0f2}.cd.k-full{background:#eef1f5}
.cd.k-event{background:var(--red-sf);border-color:#f0b6bc}.cd.k-trip{background:#fff6dc;border-color:#ead39a}.cd.k-travel,.cd.k-busy{border-style:dashed;border-color:#9aa0a6}
.cd.past{background:#f4f4f2}.cd.past,.cd.past b{color:#6b6b6b}.cd.sel{outline:3px solid var(--ink);outline-offset:-1px}
.cd:hover{border-color:var(--ink)}
.runs{list-style:none;padding:0;display:grid;gap:8px;font-size:14px}.runs li{display:flex;justify-content:space-between;gap:8px;align-items:center}
/* events, progress */
progress{width:100%;height:8px;appearance:none;-webkit-appearance:none;border:0;border-radius:99px;background:#eceef1;overflow:hidden}
progress::-webkit-progress-bar{background:#eceef1;border-radius:99px}progress::-webkit-progress-value{background:var(--blue);border-radius:99px}progress::-moz-progress-bar{background:var(--blue);border-radius:99px}
/* done, pay */
.done-card{border-top:4px solid var(--blue)}
.big-tick{width:56px;height:56px;border-radius:99px;background:var(--ok-sf);color:var(--ok);display:grid;place-items:center}
.code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.05em}
.sums{display:grid;grid-template-columns:1fr auto;gap:6px 16px;margin:10px 0 0}.sums dd{margin:0;text-align:right}
.pay-row{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.bank{white-space:pre-wrap;font:15px/1.6 var(--font);background:var(--alt);padding:12px;border-radius:4px;margin:0}
/* chat */
.app{width:40px;height:40px;border-radius:10px;flex:none;display:inline-block;background:#ddd}
.app-kakao{background:#FEE500}.app-wechat{background:#07C160}.app-line{background:#06C755}.app-whatsapp{background:#25D366}.app-telegram{background:#229ED9}.app-instagram{background:linear-gradient(45deg,#f9a03f,#d6249f,#285aeb)}
.app-card{flex-direction:row!important;align-items:center;gap:14px}
.app-card.best{border:2px solid var(--blue);padding:19px}
.code-box{background:var(--alt);border:1px solid var(--line);border-radius:4px;padding:8px 12px;font-size:15px}
.wechat-card{display:flex;gap:20px;align-items:center;flex-wrap:wrap}.wechat-card img{width:180px;height:180px}
.chat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.chat{position:fixed;right:16px;bottom:16px;z-index:40}
.fab{list-style:none;display:flex;align-items:center;gap:8px;min-height:52px;padding:0 18px;border-radius:99px;background:var(--ink);color:#fff;font-weight:700;cursor:pointer;box-shadow:0 4px 14px rgba(0,0,0,.2)}
.fab::-webkit-details-marker{display:none}
.chat-panel{position:absolute;right:0;bottom:62px;width:min(340px,calc(100vw - 32px));background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;box-shadow:0 10px 30px rgba(0,0,0,.18);display:flex;flex-direction:column;gap:8px}
.chat-h{font-weight:800;font-size:17px}
.chat-list{list-style:none;padding:0;display:grid;gap:8px;margin-top:4px}
.chat-list a{display:flex;align-items:center;gap:12px;padding:8px 10px;border:1px solid var(--line);border-radius:8px;text-decoration:none;color:var(--ink)}
.chat-list a>span:nth-child(2){flex:1;display:flex;flex-direction:column}.chat-list small{color:var(--blue);font-size:12px;font-weight:700}
.chat-list li.best a{border:2px solid var(--blue)}
.chat-list .go{font-size:13px;font-weight:700;color:var(--blue)}
.chat-list .app{width:32px;height:32px;border-radius:8px}
/* book bar on phones */
.bookbar{position:sticky;bottom:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 92px 10px 16px;background:#fff;border-top:1px solid var(--line)}
.bb-text{display:flex;flex-direction:column;font-size:13px;line-height:1.3}
/* gallery */
.gal{display:grid;gap:10px;grid-template-columns:1fr 1fr}
.gal-item{margin:0;position:relative}.gal-item img{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:4px}
.gal-item.wide{grid-column:span 2}.gal-item.wide img{aspect-ratio:16/9}
.gal-item figcaption{font-size:13px;color:var(--mut);padding-top:4px}
.vid{position:relative;display:block}.play{position:absolute;inset:0;display:grid;place-items:center;color:#fff;font-size:42px;text-shadow:0 2px 10px rgba(0,0,0,.5)}
/* student area */
.avatar{width:56px;height:56px;border-radius:99px;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:22px;font-weight:800;flex:none}
.tabs{display:flex;gap:6px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:10px}
.tabs a{padding:8px 14px;border-radius:4px;text-decoration:none;color:var(--ink);border:1.5px solid var(--line);font-weight:700;font-size:14px}
.tabs a.on{background:var(--blue);border-color:var(--blue);color:#fff}
.levels{display:flex;gap:6px;flex-wrap:wrap}
.checklist{list-style:none;padding:0;display:grid;gap:8px}.checklist li{display:flex;gap:8px;align-items:center}.checklist li.done{color:var(--ok)}
.checklist .box{width:16px;height:16px;border:1.5px solid #bdbdb8;border-radius:3px;display:inline-block}
/* about */
.motto{margin:0;padding:12px 16px;border-left:3px solid var(--red);background:var(--alt);font-size:16px}.motto span{display:block;color:var(--mut);font-size:14px;margin-top:6px}
.timeline{list-style:none;padding:0 0 0 24px;border-left:3px solid var(--ink);display:grid;gap:22px}
.timeline li{position:relative;display:flex;flex-direction:column;gap:6px}
.timeline li::before{content:"";position:absolute;left:-32px;top:6px;width:13px;height:13px;border-radius:99px;background:#fff;border:3px solid var(--ink)}
.timeline li.big::before{background:var(--red);border-color:var(--red)}
.chart{margin:0}.chart svg{width:100%;height:auto}
.chart .gl{stroke:#e6e6e2}.chart .ax{font:12px var(--font);fill:var(--mut)}.chart .ln{fill:none;stroke:var(--blue);stroke-width:2.5}.chart .dt{fill:var(--blue)}
.role h3{font-size:16px}
.media-list{list-style:none;padding:0;display:grid;gap:12px}.media-list li{display:flex;flex-direction:column}
.big404{font-size:88px;font-weight:800;letter-spacing:.04em;line-height:1}
/* footer */
.foot{background:var(--ink);color:#c9c9c4;padding:40px 0 90px;font-size:14px;box-shadow:inset 0 3px 0 var(--red);margin-top:0}
.foot a{color:#ededea;text-decoration:none}.foot a:hover{color:#fff;text-decoration:underline}
.foot-in{display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between}
.logo-inv{color:#fff}.logo-inv img{width:48px;height:48px}
.foot-tag{margin-top:8px}
.foot-cols{display:flex;gap:40px;flex-wrap:wrap}.foot-cols div{display:flex;flex-direction:column;gap:8px}
.foot-small{margin-top:28px;font-size:12px;color:#9a9a95}
.m-only{display:block}

@media (min-width:640px){
  .g2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .g3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats-in{grid-template-columns:repeat(4,minmax(0,1fr))}
  .cd{min-height:84px}.cd small{display:block}
  .gal{grid-template-columns:repeat(3,minmax(0,1fr))}
  .chat-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (min-width:900px){
  .wrap{padding:0 40px}
  .g3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .g4{grid-template-columns:repeat(4,minmax(0,1fr))}
  .g2{gap:48px}.g2.g-sm{gap:12px}
  .sec{padding:72px 0}.sec-tight{padding-top:32px}
  .hero-in{grid-template-columns:1.1fr .9fr;align-items:center;padding:96px 40px}
  .gwae{display:flex}
  .ph::after{display:block}
  .menu{order:0;margin-left:16px}
  .menu>summary{display:none}
  .menu[open]>summary+.menu-panel,.menu-panel{position:static;display:flex;flex-direction:row;gap:22px;padding:0;border:0;box-shadow:none;background:none}
  .menu-panel a{padding:0;border:0;font-weight:500;font-size:15px;color:var(--ink2)}
  .menu-panel a.on{color:var(--ink);font-weight:700;box-shadow:inset 0 -2px 0 var(--red);padding-bottom:4px}
  .m-only{display:none!important}
  .langs,.nav-login{display:flex}
  .course-row{grid-template-columns:260px minmax(0,1fr) 210px;align-items:center}
  .bookbar{display:none}
  .foot{padding-bottom:40px}
  .stats-in{padding:32px 40px}
  .stats b{font-size:36px}
}
/* the menu details element is open on desktop through CSS, closed panel hidden on phones */
@media (max-width:899px){.menu:not([open])>.menu-panel{display:none}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.nav,.chat,.bookbar,.foot{display:none}}
main>section~section~section{content-visibility:auto;contain-intrinsic-size:auto 700px}
html:lang(ja){--font:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans CJK JP","Noto Sans JP","Yu Gothic","Segoe UI",Roboto,Arial,sans-serif}
html:lang(zh){--font:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC","Noto Sans SC","Microsoft YaHei","Segoe UI",Roboto,Arial,sans-serif}