/* QUBIT Lab — 가상 양자정보 연구실 디자인 샘플 (디코랩)
 * 색: 짙은 자주 면 #1E0B3A · 바이올렛 #8B3DFF · 금 #FFB800(버튼·히어로 핵심어·상태 벡터만)
 * 주제 색: 초전도 큐비트 바이올렛 · 오류 정정 청록 #007BB0 · 알고리즘 자홍 #D81B74 (흰 글자 4.5:1 이상)
 * 글꼴: Pretendard(본문·국문 제목) + Unbounded(영문 제목·숫자·켓 기호, OFL). 국문에는 Unbounded 를 쓰지 않는다.
 */
:root {
  color-scheme: light;
  --plum: #1E0B3A;
  --plum-2: #2E1458;
  --plum-3: #4A2589;
  --violet: #8B3DFF;
  --violet-ink: #6A1FE0;
  --violet-lite: #C9B3FF;
  --violet-soft: #F0E8FF;
  --gold: #FFB800;
  --gold-hi: #FFC93D;
  --ink: #160B29;
  --text: #2B2440;
  --muted: #5F5873;
  --line: #E4DEEF;
  --mist: #F6F3FC;
  --t-dev: #8B3DFF;
  --t-qec: #007BB0;
  --t-alg: #D81B74;
  --font: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
  --disp: "Unbounded", "Pretendard Variable", Pretendard, system-ui, sans-serif;
  --r: 14px;
  --r-lg: 22px;
  --util-h: 36px;
  --main-h: 80px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-padding-top: 104px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: -0.01em;
  color: var(--text);
  background: #fff;
  word-break: keep-all;
  overflow-wrap: anywhere;
  overflow-x: clip;
}
html[lang="en"] body { letter-spacing: 0; }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.28; letter-spacing: -0.02em; text-wrap: balance; }
p { text-wrap: pretty; }
img, svg { max-width: 100%; }
a { color: var(--violet-ink); }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--violet); outline-offset: 2px; }
.container { width: min(100% - 48px, 1240px); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 16px; top: -60px; z-index: 300; padding: 10px 16px; background: var(--ink); color: #fff; border-radius: 10px; }
.skip-link:focus { top: 12px; }
.ph { display: inline-block; padding: 0 8px; border: 1px dashed currentColor; border-radius: 6px; font-size: .92em; opacity: .8; }

/* ---------- 디자인 샘플 안내 띠 (고정은 /demo/_shared/sample-banner.*) ---------- */
.sample-banner { background: #0E0520; color: rgba(255,255,255,.86); font-size: .8125rem; line-height: 1.5; }
.sample-banner__inner { display: flex; align-items: center; gap: 10px; padding-block: 8px; }
.sample-banner__inner p { margin: 0; }
.sample-banner__tag { flex: none; padding: 2px 8px; border-radius: 100px; background: var(--gold); color: var(--plum); font-weight: 700; font-size: .75rem; }
.sample-banner__link { color: #fff; text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 버튼 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 50px; padding: 0 24px; border-radius: 999px; border: 2px solid transparent;
  font: 700 16px/1.2 var(--font); text-decoration: none; cursor: pointer;
  transition: background-color .2s, color .2s, border-color .2s;
}
.btn--gold { background: var(--gold); color: var(--plum); }
.btn--gold:hover { background: var(--gold-hi); }
.btn--ghost { border-color: rgba(255,255,255,.5); color: #fff; background: transparent; }
.btn--ghost:hover { background: rgba(255,255,255,.1); }
.btn--line { border-color: var(--ink); color: var(--ink); background: #fff; }
.btn--line:hover { background: var(--mist); }
.btn--sm { min-height: 40px; padding: 0 16px; font-size: 14px; }
.arrowlink { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; color: var(--violet-ink); text-decoration: none; }
.arrowlink::after { content: "→"; transition: transform .2s; }
.arrowlink:hover { text-decoration: underline; text-underline-offset: 4px; }
.arrowlink:hover::after { transform: translateX(3px); }
.morelink { margin: 24px 0 0; }

/* =========================================================
   머리 — 두 줄: 얇은 유틸 줄(스크롤하면 위로 밀려남) + 큰 1차 메뉴 줄(붙어 따라옴)
   ========================================================= */
.qh { position: sticky; top: -36px; z-index: 50; background: #fff; }
.qh__util { height: var(--util-h); background: var(--plum); color: rgba(255,255,255,.82); font-size: 13px; }
.qh__util-in { display: flex; align-items: center; gap: 22px; height: 100%; }
.qh__dept { margin: 0; flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.qh__fict { opacity: .6; }
.qh__ulinks { display: flex; gap: 18px; list-style: none; margin: 0; padding: 0; }
.qh__ulinks a { color: inherit; text-decoration: none; }
.qh__ulinks a:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.lang { display: flex; align-items: center; gap: 3px; font-size: 13px; }
.lang svg { width: 16px; height: 16px; margin-right: 3px; }
.lang a { padding: 1px 7px; border-radius: 5px; color: inherit; text-decoration: none; font-weight: 700; line-height: 1.6; }
.lang a:hover { text-decoration: underline; }
.lang a[aria-current] { background: var(--violet); color: #fff; }
.lang__sep { opacity: .4; }

.qh__main { position: relative; background: #fff; border-bottom: 1px solid var(--line); }
.qh__main-in { display: flex; align-items: center; height: var(--main-h); gap: 12px; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); flex: none; }
.logo__mark { width: 36px; height: 36px; color: var(--violet); flex: none; }
.logo__t { font: 700 20px/1 var(--disp); letter-spacing: -0.02em; white-space: nowrap; }
.logo__t b { font-weight: 300; color: var(--violet-ink); }
/* 1차 메뉴: 흔한 대학 메가 메뉴 배치 — 로고 왼쪽 · 1차는 남는 폭 가운데 · 문의·메뉴 단추 오른쪽.
   1차 칸은 모두 같은 너비(--gnb-w), 2차 열은 그 칸 바로 아래 같은 너비로, 글자는 칸 가운데. 열 사이 옅은 세로선. (사용자 「너무 오른쪽으로 가고 자간이 좁음」) */
.gnb { flex: 1 1 auto; min-width: 0; display: flex; justify-content: center; }
.gnb__list { display: flex; flex: 0 1 auto; min-width: 0; list-style: none; margin: 0; padding: 0; }
.gnb__item { position: relative; flex: 0 1 var(--gnb-w, 136px); width: var(--gnb-w, 136px); min-width: 0; }
.gnb__link {
  position: relative; display: flex; align-items: center; justify-content: center; height: var(--main-h); padding: 0 6px;
  font: 500 15px/1 var(--disp); letter-spacing: -0.02em; color: var(--ink); text-decoration: none; white-space: nowrap;
}
html[lang="ko"] .gnb__link { font: 700 17px/1 var(--font); letter-spacing: -0.01em; }
.gnb__link span { position: relative; }
.gnb__link span::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -12px; height: 3px; border-radius: 2px;
  background: var(--violet); transform: scaleX(0); transition: transform .25s ease;
}
.gnb__item:hover .gnb__link span::after, .gnb__item:focus-within .gnb__link span::after, .gnb__item.is-current .gnb__link span::after { transform: scaleX(1); }
.gnb__sub { display: none; position: absolute; z-index: 3; left: 0; top: 100%; width: 100%; min-height: var(--mega-h, 0px); list-style: none; margin: 0; padding: 18px 8px 24px; text-align: center; }
.gnb__item + .gnb__item .gnb__sub { border-left: 1px solid var(--line); }
.qh.is-mega .gnb__sub { display: block; }
.gnb__sub a { display: block; padding: 6px 0; font-size: 15px; line-height: 1.4; color: var(--text); text-decoration: none; word-break: keep-all; overflow-wrap: break-word; }
html[lang="en"] .gnb__sub { padding-inline: 4px; }
html[lang="en"] .gnb__sub a { font-size: 14px; hyphens: auto; }
.gnb__sub a:hover { color: var(--violet-ink); text-decoration: underline; text-underline-offset: 3px; }
.gnb__sub a[aria-current] { color: var(--violet-ink); font-weight: 700; }
.qh__mega { display: none; position: absolute; z-index: 2; left: 0; right: 0; top: 100%; height: var(--mega-h, 220px); background: #fff; border-top: 1px solid var(--line); border-bottom: 3px solid var(--violet); box-shadow: 0 24px 40px rgba(30, 11, 58, .1); }
.qh.is-mega .qh__mega { display: block; }
.qh__cta { min-height: 44px; padding: 0 18px; font-size: 15px; flex: none; }
.qh__menu {
  display: inline-flex; align-items: center; gap: 9px; flex: none; height: 44px; padding: 0 16px;
  border: 1.5px solid var(--line); border-radius: 999px; background: #fff; color: var(--ink); font: 700 14px var(--font); cursor: pointer;
}
.qh__menu:hover { border-color: var(--ink); }
.qh__bars { display: grid; gap: 4px; width: 18px; }
.qh__bars i { display: block; height: 2px; border-radius: 2px; background: currentColor; }
.qh__bars i:nth-child(2) { width: 70%; }

/* 전체 메뉴 (머리 밖에 두어 머리의 스크롤 상태와 상관없이 화면 전체를 덮는다) */
.smenu { position: fixed; inset: 0; top: var(--sample-banner-h, 0px); z-index: 200; overflow: auto; background: var(--plum); color: #fff; padding-bottom: 40px; overscroll-behavior: contain; }
.smenu__head { display: flex; justify-content: space-between; align-items: center; height: 76px; }
.logo--menu { color: #fff; }
.logo--menu .logo__mark, .logo--foot .logo__mark { color: var(--violet-lite); }
.logo--menu .logo__t b, .logo--foot .logo__t b { color: var(--violet-lite); }
.smenu__close { width: 48px; height: 48px; border-radius: 50%; border: 1.5px solid rgba(255,255,255,.35); background: transparent; color: #fff; font-size: 28px; line-height: 1; cursor: pointer; }
.smenu__list { list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 28px 32px; padding: 24px 0 36px; margin-block: 0; }
.smenu__g { font: 500 14px var(--disp); color: var(--violet-lite); margin: 0 0 8px; }
html[lang="ko"] .smenu__g { font: 700 15px var(--font); }
.smenu__group ul { list-style: none; margin: 0; padding: 0; }
.smenu__group a { display: block; padding: 6px 0; color: #fff; font-size: 18px; font-weight: 600; text-decoration: none; line-height: 1.4; }
.smenu__group a:hover, .smenu__group a[aria-current] { color: var(--gold); }
html[lang="ko"] .ch-l { font-family: var(--font); font-weight: 600; }
html[lang="ko"] .other__k,html[lang="ko"] .bigtabs a, html[lang="ko"] .ychip { font-family: var(--font); font-weight: 700; letter-spacing: -0.01em; }
.smenu__foot { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.16); }
.smenu__foot a { color: #fff; }
.smenu .lang { font-size: 15px; }
body.menu-open { overflow: hidden; }

@media (max-width: 1279px) {
  .qh__cta { display: none; }
  .gnb__link { font-size: 14px; }
  html[lang="ko"] .gnb__link { font-size: 16px; }
  .gnb__sub { padding-inline: 3px; }
  .gnb__sub a { font-size: 14px; }
  /* 좁은 PC: 메뉴 단추는 아이콘만(글자는 화면 읽기용으로 남김) — 1차 칸을 넓힌다 */
  .qh__menu { padding: 0 13px; }
  .qh__menu > span:last-child { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
}
@media (max-width: 1023px) {
  .qh__menu { padding: 0 16px; }
  .qh__menu > span:last-child { position: static; width: auto; height: auto; overflow: visible; clip: auto; }
}
@media (max-width: 1023px) {
  :root { --main-h: 64px; }
  .gnb { display: none; }
  .qh__menu { margin-left: auto; }
  .qh__ulinks { display: none; }
  .logo__t { font-size: 18px; }
  .logo__mark { width: 32px; height: 32px; }
}

/* =========================================================
   메인 — 히어로: 블로흐 구
   ========================================================= */
.hero { background: var(--plum); color: #fff; position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(60% 70% at 78% 45%, rgba(139, 61, 255, .28), transparent 70%); pointer-events: none; }
.hero__in { position: relative; display: grid; grid-template-columns: 1.08fr .92fr; gap: 48px; align-items: center; padding: 64px 0 72px; min-height: min(80vh, 740px); }
.hero__kicker { margin: 0 0 18px; font-size: 15px; font-weight: 600; color: var(--violet-lite); }
.hero__title { margin: 0; font: 300 clamp(1.85rem, 1rem + 2.4vw, 3.25rem)/1.16 var(--disp); letter-spacing: -0.035em; color: #fff; }
.hero__title b { font-weight: 700; color: var(--gold); }
html[lang="ko"] .hero__title { font-family: var(--font); font-weight: 300; line-height: 1.24; letter-spacing: -0.035em; font-size: clamp(2.1rem, 1.1rem + 3vw, 3.9rem); }
html[lang="ko"] .hero__title b { font-weight: 800; }
.hero__lead { margin: 24px 0 32px; max-width: 34em; font-size: 18px; color: rgba(255,255,255,.82); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; }

.bloch { margin: 0; display: grid; gap: 14px; justify-items: center; }
.bloch__stage { width: min(100%, 390px); aspect-ratio: 1; border-radius: 50%; touch-action: none; cursor: grab; outline-offset: 6px; user-select: none; -webkit-user-select: none; }
.bloch__stage:focus-visible { outline: 3px solid var(--gold); }
.bloch__stage.is-drag { cursor: grabbing; }
.bloch__stage { position: relative; contain: layout; }
.bloch__svg { display: block; width: 100%; height: 100%; overflow: visible; will-change: transform; }
.bloch__read { contain: layout paint; }
.bloch__dyn { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; will-change: transform; }
.bl-ball { stroke: rgba(201, 179, 255, .55); stroke-width: 1.5; }
.bl-back path { fill: none; stroke: rgba(201, 179, 255, .26); stroke-width: 1; stroke-dasharray: 3 5; }
.bl-front path { fill: none; stroke: rgba(201, 179, 255, .5); stroke-width: 1.2; }
.bl-front .bl-eq { stroke: rgba(201, 179, 255, .8); stroke-width: 1.6; }
.bl-axes line { stroke: rgba(255,255,255,.32); stroke-width: 1; stroke-dasharray: 2 4; }
.bl-labels text { fill: rgba(255,255,255,.78); font: 500 14px var(--disp); text-anchor: middle; dominant-baseline: middle; }
.bl-labels .bl-k { fill: #fff; font-size: 18px; font-weight: 700; }
.bl-vec { stroke: var(--gold); stroke-width: 4; stroke-linecap: round; }
.bl-head { fill: var(--gold); stroke: var(--plum); stroke-width: 3; }
.bl-core { fill: #fff; }
.bl-foot { stroke: rgba(255, 184, 0, .55); stroke-width: 1.5; stroke-dasharray: 4 4; }
.bl-drop { stroke: rgba(255, 184, 0, .55); stroke-width: 1.5; stroke-dasharray: 2 4; }
.bl-trail { fill: none; stroke: rgba(255, 184, 0, .45); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.bloch__read { width: min(100%, 440px); display: grid; gap: 8px; padding: 16px 18px; border-radius: 18px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.15); }
.bloch__psi { margin: 0 0 2px; font-size: 16px; color: #fff; font-variant-numeric: tabular-nums; }
.pbar { display: grid; grid-template-columns: 30px 1fr 46px; align-items: center; gap: 10px; font-variant-numeric: tabular-nums; }
.pbar__k { font: 500 14px var(--disp); }
.pbar__t { height: 10px; border-radius: 99px; background: rgba(255,255,255,.13); overflow: hidden; }
.pbar__t i { display: block; height: 100%; border-radius: inherit; background: var(--violet-lite); transform-origin: left; }
.pbar--1 .pbar__t i { background: var(--gold); }
.pbar b { text-align: right; }
.bloch__row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.bloch__ang { margin: 0; font-size: 14px; color: rgba(255,255,255,.7); font-variant-numeric: tabular-nums; }
.bloch__ang b { color: #fff; margin-right: 10px; }
.bloch__pause { display: inline-flex; align-items: center; gap: 6px; min-height: 36px; padding: 0 13px; border-radius: 999px; border: 1px solid rgba(255,255,255,.4); background: transparent; color: #fff; font: 600 13px var(--font); cursor: pointer; }
.bloch__pause:hover { border-color: var(--gold); }
.bloch__pause svg { width: 14px; height: 14px; fill: currentColor; }
.bloch__pause .i-play { display: none; }
.bloch__pause[aria-pressed="true"] .i-play { display: inline; }
.bloch__pause[aria-pressed="true"] .i-pause { display: none; }
.bloch__sets { display: flex; flex-wrap: wrap; gap: 8px; }
.bloch__sets button { min-height: 38px; min-width: 54px; padding: 0 12px; border-radius: 10px; border: 1px solid rgba(255,255,255,.28); background: rgba(255,255,255,.05); color: #fff; font: 500 14px var(--disp); cursor: pointer; transition: border-color .2s, background-color .2s; }
.bloch__sets button:hover { border-color: var(--gold); background: rgba(255, 184, 0, .1); }

/* ---------- 히어로 바로 아래: 연구실 상태식 ---------- */
.eq { border-bottom: 1px solid var(--line); }
.eq__in { display: grid; grid-template-columns: auto 1fr; gap: 10px 22px; align-items: center; padding: 44px 0 40px; }
.eq__k { grid-column: 1 / -1; margin: 0; font-size: 15px; font-weight: 700; color: var(--violet-ink); letter-spacing: 0; }
.eq__lhs { margin: 0; font: 300 clamp(22px, 1rem + 1.6vw, 34px)/1.2 var(--disp); color: var(--ink); white-space: nowrap; letter-spacing: -0.03em; }
.eq__terms { display: flex; flex-wrap: wrap; gap: 6px 2px; list-style: none; margin: 0; padding: 0; }
.eq__term a { display: inline-grid; grid-template-columns: auto auto auto; align-items: baseline; gap: 0 8px; padding: 8px 14px 10px; border-radius: 14px; color: var(--ink); text-decoration: none; transition: background-color .2s; }
.eq__term a:hover { background: var(--mist); }
.eq__op { font: 300 clamp(22px, 1rem + 1.6vw, 34px)/1.2 var(--disp); color: var(--muted); }
.eq__amp { font: 700 clamp(22px, 1rem + 1.6vw, 34px)/1.2 var(--disp); font-variant-numeric: tabular-nums; letter-spacing: -0.03em; }
.eq__term--dev .eq__amp { color: var(--t-dev); }
.eq__term--qec .eq__amp { color: var(--t-qec); }
.eq__term--alg .eq__amp { color: var(--t-alg); }
.eq__ket { font: 300 clamp(17px, .8rem + 1vw, 24px)/1.2 var(--disp); letter-spacing: -0.03em; }
html[lang="ko"] .eq__ket { font-family: var(--font); font-weight: 600; letter-spacing: -0.02em; }
.eq__n { grid-column: 2 / -1; font-size: 13px; color: var(--muted); }
.eq__op:empty { display: none; }
.eq__term:first-child .eq__n { grid-column: 1 / -1; }
.eq__lead { grid-column: 1 / -1; margin: 6px 0 0; max-width: 52em; font-size: 15px; color: var(--muted); }

/* ---------- 섹션 공통 머리 ---------- */
.sechead { max-width: 760px; margin-bottom: 36px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 10px; font-size: 15px; font-weight: 700; color: var(--violet-ink); }
.eyebrow::before { content: ""; width: 22px; height: 2px; background: currentColor; }
.eyebrow--onDark { color: var(--violet-lite); }
.sechead__t, .play__t, .visit__t { margin: 0 0 14px; font-size: clamp(26px, 1.3rem + 1.4vw, 42px); font-weight: 700; }
html[lang="en"] .sechead__t, html[lang="en"] .play__t, html[lang="en"] .visit__t { font-family: var(--disp); font-weight: 500; letter-spacing: -0.035em; line-height: 1.18; }
.sechead__lead { margin: 0 0 14px; color: var(--muted); }
.autonote { display: inline-flex; align-items: center; gap: 8px; margin: 0; font-size: 14px; color: var(--muted); }
.autonote__dot { flex: none; width: 8px; height: 8px; border-radius: 50%; background: #17A36B; box-shadow: 0 0 0 4px rgba(23, 163, 107, .16); }

/* ---------- 세 선 위의 최근 논문 ---------- */
.wires { padding: 96px 0; background: var(--mist); }
.wires__score { --row: 76px; --gw: 46px; position: relative; padding: 26px 28px 48px 168px; background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); }
.wires__row { position: relative; height: var(--row); }
.wires__row::before { content: ""; position: absolute; left: 0; right: 0; top: 50%; height: 2px; margin-top: -1px; background: var(--tc); opacity: .45; }
.wires__row--dev { --tc: var(--t-dev); }
.wires__row--qec { --tc: var(--t-qec); }
.wires__row--alg { --tc: var(--t-alg); }
.wires__name { position: absolute; right: calc(100% + 18px); top: 50%; transform: translateY(-50%); width: 130px; text-align: right; font-size: 14px; font-weight: 700; color: var(--ink); line-height: 1.3; }
.wires__gates { position: absolute; left: 168px; right: 28px; top: 26px; height: calc(var(--row) * 3); }
.wg {
  position: absolute; left: var(--x); top: calc(var(--r0) * var(--row) + (var(--row) - var(--gw)) / 2);
  width: var(--gw); height: calc((var(--r1) - var(--r0)) * var(--row) + var(--gw)); transform: translateX(-50%);
  display: grid; place-items: center; border-radius: 10px; border: 2.5px solid var(--tc); background: #fff;
  color: var(--ink); font: 700 15px var(--disp); text-decoration: none; transition: background-color .2s, color .2s;
}
.wg--dev { --tc: var(--t-dev); }
.wg--qec { --tc: var(--t-qec); }
.wg--alg { --tc: var(--t-alg); }
.wg--span { background: linear-gradient(rgba(139, 61, 255, .14) 50%, rgba(0, 123, 176, .16) 50%); border-color: var(--ink); }
.wg:hover, .wg:focus-visible { background: var(--tc); color: #fff; }
.wires__axis { position: absolute; left: 168px; right: 28px; bottom: 14px; height: 20px; }
.wires__axis span { position: absolute; left: var(--x); transform: translateX(-50%); font-size: 12px; color: var(--muted); white-space: nowrap; }
.wires__axis .yr { color: var(--ink); font-weight: 700; }
.wl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 36px; list-style: none; margin: 28px 0 0; padding: 0; }
.wl li { display: grid; grid-template-columns: 34px 1fr; gap: 2px 12px; }
.wl__no { grid-row: span 2; width: 34px; height: 34px; border-radius: 8px; border: 2px solid var(--tc); display: grid; place-items: center; font: 700 13px var(--disp); color: var(--ink); background: #fff; }
.wl__no--dev { --tc: var(--t-dev); }
.wl__no--qec { --tc: var(--t-qec); }
.wl__no--alg { --tc: var(--t-alg); }
.wl__t { margin: 0; font-size: 16px; font-weight: 600; line-height: 1.45; color: var(--ink); }
.wl__v { margin: 0; font-size: 14px; color: var(--muted); }

/* ---------- 회로 실험실 판 (메인) ---------- */
.play { padding: 92px 0; background: var(--plum); color: #fff; }
.play__in { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.play__t { color: #fff; }
.play__lead { margin: 0 0 28px; color: rgba(255,255,255,.82); }
.play__fig { padding: 26px; border-radius: var(--r-lg); background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.15); }
.minic { display: block; width: 100%; height: auto; }
.minic__w { fill: none; stroke: rgba(255,255,255,.42); stroke-width: 2; }
.minic__k { fill: rgba(255,255,255,.72); font: 500 13px var(--disp); }
.minic__h { fill: var(--violet); }
.minic__ht { fill: #fff; font: 700 18px var(--disp); text-anchor: middle; }
.minic__l { fill: none; stroke: var(--gold); stroke-width: 2.5; }
.minic__c { fill: var(--gold); }
.minic__t { fill: var(--plum); stroke: var(--gold); stroke-width: 2.5; }
.minic__m { fill: rgba(255,255,255,.08); stroke: rgba(255,255,255,.42); }
.minic__ma { fill: none; stroke: #fff; stroke-width: 2; stroke-linecap: round; }
.play__bars { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 24px; list-style: none; margin: 18px 0 0; padding: 0; }
.play__bars li { display: grid; grid-template-columns: 42px 1fr 40px; gap: 10px; align-items: center; font-variant-numeric: tabular-nums; font-size: 14px; }
.play__bars li span:first-child { font: 500 13px var(--disp); }
.play__bars b { text-align: right; }
.play__tr { height: 10px; border-radius: 99px; background: rgba(255,255,255,.12); overflow: hidden; }
.play__tr i { display: block; height: 100%; background: var(--gold); transform-origin: left; }
.play__bars .is-zero { opacity: .5; }

/* ---------- 에너지 준위 구성원 ---------- */
.people { padding: 96px 0; }
.people__in { display: grid; grid-template-columns: .85fr 1.15fr; gap: 64px; align-items: start; }
.prof { display: flex; gap: 20px; margin-top: 24px; padding: 24px; border: 1px solid var(--line); border-radius: var(--r-lg); }
.prof__ph { flex: none; width: 84px; height: 84px; border-radius: 50%; display: grid; place-items: center; background: var(--plum); color: #fff; font: 700 22px var(--disp); box-shadow: inset 0 0 0 4px var(--violet); }
.prof__ph--lg { width: 140px; height: 140px; font-size: 34px; box-shadow: inset 0 0 0 6px var(--violet); }
.prof__role { margin: 0; font-size: 14px; font-weight: 700; color: var(--violet-ink); }
.prof__name { margin: 2px 0 6px; font-size: 22px; font-weight: 800; color: var(--ink); line-height: 1.3; }
.prof__line { margin: 0 0 12px; font-size: 16px; color: var(--muted); }
.lv { position: relative; padding-top: 34px; border-left: 2px solid var(--ink); }
.lv::before { content: "E"; position: absolute; left: -9px; top: -6px; font: 700 14px var(--disp); color: var(--ink); background: #fff; padding: 0 2px; }
.lv__row { display: grid; grid-template-columns: 190px 1fr; gap: 16px; align-items: end; padding: 0 0 30px 22px; }
.lv__name { margin: 0; font-size: 15px; font-weight: 700; line-height: 1.35; color: var(--ink); }
.lv__name b { margin-left: 4px; color: var(--violet-ink); }
.lv__e { display: block; font: 500 12px var(--disp); color: var(--muted); margin-bottom: 2px; }
.lv__line { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; margin: 0; padding: 0 0 0 6px; border-bottom: 3px solid var(--ink); }
.lv__p { width: 42px; height: 42px; margin-bottom: -21px; border-radius: 50%; display: grid; place-items: center; border: 3px solid #fff; color: #fff; font: 700 12px var(--disp); background: var(--tc); }
.lv__p--dev, .lv__sw--dev, .mini__ph--dev, .pcard--dev { --tc: var(--t-dev); }
.lv__p--qec, .lv__sw--qec, .mini__ph--qec, .pcard--qec { --tc: var(--t-qec); }
.lv__p--alg, .lv__sw--alg, .mini__ph--alg, .pcard--alg { --tc: var(--t-alg); }
.lv__foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 20px; padding: 14px 0 0 22px; }
.lv__legend { display: flex; flex-wrap: wrap; gap: 6px 16px; list-style: none; margin: 0; padding: 0; font-size: 14px; color: var(--muted); }
.lv__sw { display: inline-block; width: 11px; height: 11px; margin-right: 6px; border-radius: 50%; background: var(--tc); }
.lv__asof { margin: 0; font-size: 14px; color: var(--muted); }
.lv .morelink { padding-left: 22px; }

/* ---------- 공지·소식 ---------- */
.board { padding: 88px 0; background: var(--mist); }
.board__in { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.board__t { margin: 0 0 6px; padding-bottom: 14px; border-bottom: 2px solid var(--ink); font-size: 24px; }
html[lang="en"] .board__t { font-family: var(--disp); font-weight: 500; letter-spacing: -0.03em; }
.blist { list-style: none; margin: 0; padding: 0; }
.blist li { display: grid; grid-template-columns: 112px auto 1fr; gap: 4px 14px; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--line); }
.blist p { margin: 0; font-weight: 600; line-height: 1.5; color: var(--ink); }
time { font-size: 14px; color: var(--muted); font-variant-numeric: tabular-nums; }
.cat { justify-self: start; padding: 2px 10px; border-radius: 99px; background: var(--violet-soft); color: var(--violet-ink); font-size: 12px; font-weight: 700; white-space: nowrap; }
.blist--page li { grid-template-columns: 130px 110px 1fr; padding: 20px 0; }
.blist--page { border-top: 2px solid var(--ink); }

/* ---------- 찾아오기 ---------- */
.visit { padding: 84px 0; border-top: 1px solid var(--line); }
.visit__in { display: grid; grid-template-columns: 1fr auto; gap: 10px 48px; align-items: end; }
.visit__t { grid-column: 1; }
.visit__lead { grid-column: 1; margin: 0; max-width: 40em; color: var(--muted); }
.visit__addr { grid-column: 1; margin: 6px 0 0; font-size: 15px; color: var(--muted); }
.visit__cta { grid-column: 2; grid-row: 1 / 4; display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- 바닥글 ---------- */
.qfoot { background: var(--plum); color: rgba(255,255,255,.78); padding: 56px 0 28px; font-size: 15px; }
.qfoot__in { display: grid; grid-template-columns: 1fr 1.4fr; gap: 40px; }
.logo--foot { margin: 0; color: #fff; }
.qfoot__sub { margin: 12px 0 0; }
.qfoot__info { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 28px; margin: 0; }
.qfoot__info dt { font-size: 13px; font-weight: 700; color: var(--violet-lite); }
.qfoot__info dd { margin: 2px 0 0; color: #fff; }
.qfoot a { color: #fff; }
.qfoot__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 20px; margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.15); font-size: 13px; }
.qfoot__bottom p { margin: 0; }
.qfoot__credit { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.credit-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; text-decoration: none; }
.credit-link img { height: 16px; width: auto; filter: brightness(0) invert(1); }

/* =========================================================
   서브 — 자주 띠 머리(켓 기호 그룹명 + 궤도 장식) · 왼쪽 번호 목차(붙어 따라옴)
   ========================================================= */
.qsub { position: relative; overflow: hidden; background: var(--plum); color: #fff; }
.qsub__in { position: relative; z-index: 1; padding: 26px 0 46px; }
.crumb ol { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0 0 30px; padding: 0; font-size: 14px; color: rgba(255,255,255,.72); }
.crumb li + li::before { content: "›"; margin-right: 6px; opacity: .6; }
.crumb a { color: inherit; text-decoration: none; }
.crumb a:hover { color: #fff; text-decoration: underline; }
.crumb [aria-current] { color: #fff; }
.qsub__ket { margin: 0; font: 300 clamp(44px, 1.6rem + 4.6vw, 104px)/1 var(--disp); letter-spacing: -0.05em; color: #fff; }
.qsub__br { color: var(--violet-lite); }
.qsub__g { margin: 14px 0 0; font-size: 19px; font-weight: 700; color: var(--violet-lite); }
.qsub__orbit { position: absolute; right: -60px; top: 50%; width: 520px; height: 520px; margin-top: -260px; fill: none; stroke: rgba(180, 140, 255, .3); stroke-width: 1.2; }
.qsub__dot { fill: var(--gold); stroke: none; }

.qpage { display: grid; grid-template-columns: 236px minmax(0, 1fr); gap: 64px; padding: 56px 0 104px; }
.qpage--wide { grid-template-columns: minmax(0, 1fr); }
.qtoc nav { position: sticky; top: 112px; }
.qtoc__g { margin: 0 0 14px; font: 500 20px/1.2 var(--disp); color: var(--ink); letter-spacing: -0.03em; }
html[lang="ko"] .qtoc__g { font: 800 20px/1.2 var(--font); }
.qtoc__ket { color: var(--violet); font-family: var(--disp); font-weight: 300; }
.qtoc ol { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--line); }
.qtoc a { display: grid; grid-template-columns: 38px 1fr; gap: 6px; align-items: baseline; margin-left: -2px; padding: 11px 0 11px 16px; border-left: 3px solid transparent; color: var(--muted); font-weight: 600; line-height: 1.35; text-decoration: none; transition: color .2s, border-color .2s; }
.qtoc a:hover { color: var(--ink); }
.qtoc__n { font: 500 14px var(--disp); color: var(--muted); }
.qtoc a[aria-current] { border-left-color: var(--violet); color: var(--ink); font-weight: 800; }
.qtoc a[aria-current] .qtoc__n { color: var(--violet-ink); font-weight: 700; }

.qtitle { margin-bottom: 40px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.qtitle h1 { margin: 0 0 14px; font-size: clamp(30px, 1.5rem + 1.9vw, 54px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.2; }
html[lang="en"] .qtitle h1 { font-family: var(--disp); font-weight: 500; letter-spacing: -0.04em; line-height: 1.12; }
.qtitle__desc { margin: 0; max-width: 46em; font-size: 18px; color: var(--muted); }
.updated { display: inline-flex; align-items: center; gap: 8px; margin: 14px 0 0; font-size: 14px; color: var(--muted); }
.updated::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--violet); }

.block { margin-top: 56px; }
.block:first-child { margin-top: 0; }
.block h2 { margin: 0 0 18px; font-size: clamp(22px, 1.1rem + .8vw, 30px); }
html[lang="en"] .block h2 { font-family: var(--disp); font-weight: 500; letter-spacing: -0.035em; }
.block h3 { font-size: 19px; }
.lead { font-size: 20px; font-weight: 500; line-height: 1.6; color: var(--ink); }
.fine { margin-top: 16px; font-size: 14px; color: var(--muted); }
.sign { font-weight: 700; color: var(--ink); }
.welcome__grid { display: grid; grid-template-columns: 140px 1fr; gap: 36px; }
.welcome__grid .lead { margin-top: 0; }
.glance { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 32px; margin: 0; border-top: 2px solid var(--ink); }
.glance > div { display: grid; grid-template-columns: 130px 1fr; gap: 12px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.glance dt { font-weight: 700; color: var(--ink); }
.glance dd { margin: 0; }
.glance--tight { grid-template-columns: 1fr; flex: 1; }
.profile { display: flex; gap: 36px; align-items: center; }
.steps { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--violet); }
.steps li { position: relative; display: grid; grid-template-columns: 116px 1fr; gap: 16px; padding: 11px 0 11px 24px; }
.steps li::before { content: ""; position: absolute; left: -7px; top: 22px; width: 12px; height: 12px; border-radius: 50%; background: #fff; border: 2px solid var(--violet); }
.steps time { font: 500 15px var(--disp); color: var(--violet-ink); }
.steps p { margin: 0; }
.ticks { list-style: none; margin: 0; padding: 0; }
.ticks li { position: relative; padding: 7px 0 7px 26px; }
.ticks li::before { content: ""; position: absolute; left: 4px; top: 18px; width: 9px; height: 9px; border-radius: 2px; background: var(--violet); transform: rotate(45deg); }
.dtable { width: 100%; border-collapse: collapse; border-top: 2px solid var(--ink); }
.dtable th, .dtable td { padding: 14px 14px 14px 0; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.dtable th { width: 210px; color: var(--ink); }
.map { margin: 0; }
.map img { display: block; width: 100%; height: auto; border-radius: var(--r-lg); }
.map figcaption, .fig figcaption { margin-top: 10px; font-size: 14px; color: var(--muted); }
.mailcards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 20px; }
.mailcard { padding: 24px; border: 1px solid var(--line); border-radius: var(--r-lg); }
.mailcard h3 { margin: 0 0 6px; }
.mailcard p { margin: 0; }
.mailcard__s { display: grid; gap: 4px; margin: 14px 0 !important; }
.mailcard__s span { font-size: 13px; font-weight: 700; color: var(--muted); }
.mailcard code { padding: 7px 10px; border-radius: 8px; background: var(--mist); color: var(--ink); font: 500 15px var(--font); }
.tablewrap { overflow-x: auto; }
.atable { width: 100%; border-collapse: collapse; border-top: 2px solid var(--ink); font-size: 16px; }
.atable th, .atable td { padding: 14px 14px 14px 0; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.atable thead th { font-size: 14px; color: var(--muted); }
.atable tbody th { color: var(--ink); }
.atable tbody th span { display: block; font-weight: 500; font-size: 14px; color: var(--muted); }
.cta-strip { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; margin-top: 56px; padding: 24px 28px; border-radius: var(--r-lg); background: var(--plum); color: #fff; }
.cta-strip p { margin: 0; }
.cta-strip b { color: var(--gold); }

/* 연구 개요·주제 */
.topics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; list-style: none; margin: 0; padding: 0; }
.topic { display: flex; flex-direction: column; padding: 24px; border-top: 6px solid var(--tc); border-radius: 0 0 var(--r-lg) var(--r-lg); background: var(--mist); }
.topic--dev, .tag--dev, .tchip--dev, .other--dev, .ncard--dev, .cat--dev { --tc: var(--t-dev); }
.topic--qec, .tag--qec, .tchip--qec, .other--qec, .ncard--qec, .cat--qec { --tc: var(--t-qec); }
.topic--alg, .tag--alg, .tchip--alg, .other--alg, .ncard--alg, .cat--alg { --tc: var(--t-alg); }
.topic__ket { margin: 0 0 12px; font: 500 21px/1.25 var(--disp); letter-spacing: -0.03em; color: var(--ink); }
html[lang="ko"] .topic__ket { font: 800 21px/1.3 var(--font); }
.topic__b { flex: 1; margin: 0 0 20px; }
.topic__links { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px; margin: 0; }
.topic__n { padding: 4px 12px; border-radius: 99px; border: 1.5px solid var(--tc); color: var(--ink); font-size: 14px; font-weight: 700; text-decoration: none; }
.topic__n:hover { background: #fff; }
.loop { display: grid; gap: 10px; list-style: none; counter-reset: loop; margin: 0; padding: 0; }
.loop li { position: relative; counter-increment: loop; padding: 14px 18px 14px 58px; border: 1px solid var(--line); border-radius: 14px; }
.loop li::before { content: counter(loop); position: absolute; left: 16px; top: 14px; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; background: var(--plum); color: #fff; font: 700 13px var(--disp); }
.fig { margin: 0 0 8px; }
.fig__svg { display: block; width: 100%; height: auto; border-radius: var(--r-lg); }
.ch-bg, .lt-bg, .vq-bg { fill: var(--plum); }
.ch-grid path { stroke: rgba(255,255,255,.05); }
.ch-feed { fill: none; stroke: var(--violet-lite); stroke-width: 6; }
.ch-q { fill: var(--violet); }
.ch-jj { fill: var(--gold); }
.ch-c { fill: var(--violet-lite); }
.ch-r { fill: none; stroke: var(--violet-lite); stroke-width: 3; stroke-linejoin: round; }
.ch-t { fill: #fff; font: 600 18px var(--disp); text-anchor: middle; }
.ch-l { fill: rgba(255,255,255,.62); font: 500 14px var(--disp); }
.lt-x { fill: rgba(139, 61, 255, .6); }
.lt-z { fill: rgba(0, 123, 176, .75); }
.lt-lit { fill: var(--gold); }
.lt-d { fill: #fff; stroke: var(--plum); stroke-width: 3; }
.lt-err { fill: var(--t-alg); }
.lt-chain { fill: none; stroke: var(--t-alg); stroke-width: 5; stroke-dasharray: 8 6; }
.lt-leg text { fill: #fff; font: 500 16px var(--font); }
.vq-w { stroke: rgba(255,255,255,.42); stroke-width: 2; }
.vq-g { fill: var(--violet); }
.vq-t { fill: #fff; font: 600 13px var(--font); text-anchor: middle; }
.vq-cx { stroke: var(--gold); stroke-width: 2.5; }
.vq-dot { fill: var(--gold); }
.vq-tg { fill: var(--plum); stroke: var(--gold); stroke-width: 2.5; }
.vq-ax { fill: none; stroke: rgba(255,255,255,.5); stroke-width: 1.5; }
.vq-ex { stroke: var(--violet-lite); stroke-width: 1.5; stroke-dasharray: 6 6; }
.vq-curve { fill: none; stroke: var(--gold); stroke-width: 3; stroke-linejoin: round; }
.vq-l { fill: rgba(255,255,255,.75); font: 500 15px var(--font); }
.mini { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 24px; list-style: none; margin: 0; padding: 0; }
.mini li { display: flex; gap: 12px; align-items: center; line-height: 1.4; }
.mini__ph { flex: none; width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; background: var(--tc); color: #fff; font: 700 13px var(--disp); }
.mini b { color: var(--ink); }
.mini small { display: block; font-size: 14px; color: var(--muted); }
.others { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; list-style: none; margin: 0; padding: 0; }
.other { display: block; height: 100%; padding: 18px 18px 18px 20px; border: 1.5px solid var(--line); border-left: 6px solid var(--tc, var(--gold)); border-radius: 16px; color: var(--ink); text-decoration: none; transition: border-color .2s; }
.other:hover { border-color: var(--ink); border-left-color: var(--tc, var(--gold)); }
.other__k { display: block; font: 500 16px/1.3 var(--disp); letter-spacing: -0.03em; }
.other__n { font-size: 14px; color: var(--muted); }

/* ---------- 논문 목록 (연도 묶음) ---------- */
.ptabs { display: flex; flex-wrap: wrap; margin: 18px 0 16px; border-bottom: 2px solid var(--line); }
.ptabs button { margin-bottom: -2px; padding: 12px 16px; border: 0; border-bottom: 3px solid transparent; background: none; color: var(--muted); font: 700 16px var(--font); cursor: pointer; }
.ptabs button b { margin-left: 3px; font: 500 13px var(--disp); }
.ptabs button:hover { color: var(--ink); }
.ptabs [aria-pressed="true"] { color: var(--ink); border-bottom-color: var(--violet); }
.pubtools { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; }
.tchips { display: flex; flex-wrap: wrap; gap: 8px; }
.tchip { display: inline-flex; align-items: center; gap: 7px; min-height: 40px; padding: 0 15px; border-radius: 99px; border: 1.5px solid var(--line); background: #fff; color: var(--text); font: 600 14px var(--font); cursor: pointer; }
.tchip i { width: 9px; height: 9px; border-radius: 50%; background: var(--tc, var(--muted)); }
.tchip:hover { border-color: var(--ink); }
.tchip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.psearch input { width: min(320px, 100%); height: 44px; padding: 0 14px; border: 1.5px solid var(--line); border-radius: 12px; font: 16px var(--font); color: var(--ink); }
.psearch input:focus { border-color: var(--violet); outline: none; box-shadow: 0 0 0 3px var(--violet-soft); }
.pubcount { margin: 16px 0 6px; font-size: 14px; color: var(--muted); }
.pubcount span { font-weight: 700; color: var(--ink); }
.publist .autonote { padding: 10px 14px; border-radius: 12px; background: var(--mist); }
.publist__body { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 44px; margin-top: 18px; }
.yidx { position: sticky; top: 112px; align-self: start; }
.yidx__t { margin: 0 0 8px; font-size: 13px; font-weight: 700; color: var(--muted); }
.yidx ul { list-style: none; margin: 0; padding: 0; }
.yidx a { display: flex; justify-content: space-between; align-items: baseline; padding: 8px 12px; border-radius: 10px; color: var(--muted); text-decoration: none; font-weight: 600; }
.yidx a:hover { color: var(--ink); background: var(--mist); }
.yidx__y { font: 500 16px var(--disp); }
.yidx b { font-size: 13px; }
.yidx a[aria-current="true"] { background: var(--plum); color: #fff; }
.ygroup { margin-bottom: 44px; scroll-margin-top: 120px; }
.ygroup__head { display: flex; align-items: baseline; gap: 14px; margin: 0 0 4px; padding-bottom: 12px; border-bottom: 2px solid var(--ink); }
.ygroup__year { font: 700 34px/1 var(--disp); letter-spacing: -0.04em; }
.ygroup__count { font-size: 15px; font-weight: 600; color: var(--muted); }
.pubs { list-style: none; margin: 0; padding: 0; }
.pub { display: grid; grid-template-columns: 50px minmax(0, 1fr); gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.pub__no { padding-top: 3px; font: 500 15px var(--disp); color: var(--violet-ink); }
.pub__title { margin: 0 0 6px; font-size: 18px; font-weight: 700; line-height: 1.45; color: var(--ink); }
.pub__link { color: inherit; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; text-decoration-color: var(--violet); }
.pub__link:hover { color: var(--violet-ink); }
.pub__authors { margin: 0; font-size: 15px; }
.pub__authors b { color: var(--ink); }
.pub__venue { margin: 2px 0 0; font-size: 15px; color: var(--muted); }
.pub__foot { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px; margin-top: 10px; }
.pub__tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; }
.ptype { padding: 3px 10px; border-radius: 6px; background: var(--plum); color: #fff; font-size: 12px; font-weight: 700; }
.ptype--ic { background: var(--plum-3); }
.ptype--dj { background: #fff; color: var(--plum); box-shadow: inset 0 0 0 1.5px var(--plum); }
.ptype--dc { background: #fff; color: var(--plum-3); box-shadow: inset 0 0 0 1.5px var(--plum-3); }
.tag { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 99px; background: var(--mist); color: var(--ink); font-size: 12px; font-weight: 700; white-space: nowrap; }
.tag i { width: 8px; height: 8px; border-radius: 50%; background: var(--tc); }
.pub__files { display: flex; gap: 8px; margin: 0; }
.fbtn { display: inline-flex; align-items: center; gap: 6px; min-height: 34px; padding: 0 12px; border-radius: 99px; border: 1.5px solid var(--line); color: var(--ink); font: 700 12px var(--font); text-decoration: none; }
.fbtn svg { width: 14px; height: 14px; }
.fbtn:hover { border-color: var(--violet); color: var(--violet-ink); }
.empty { padding: 40px; text-align: center; color: var(--muted); border: 1px dashed var(--line); border-radius: 16px; }

/* ---------- 과제 목록 ---------- */
.bigtabs { display: grid; grid-template-columns: 1fr 1fr; margin-bottom: 28px; border-bottom: 2px solid var(--line); }
.bigtabs a { margin-bottom: -2px; padding: 18px 8px; border-bottom: 4px solid transparent; text-align: center; color: var(--muted); font: 500 22px var(--disp); letter-spacing: -0.03em; text-decoration: none; }
.bigtabs a:hover { color: var(--ink); }
.bigtabs b { margin-left: 6px; font-size: 15px; color: var(--violet-ink); }
.bigtabs a[aria-current] { color: var(--ink); font-weight: 700; border-bottom-color: var(--violet); }
.ychips { display: flex; flex-wrap: wrap; gap: 8px; }
.ychip { min-height: 40px; padding: 0 16px; border-radius: 99px; border: 1.5px solid var(--line); background: #fff; color: var(--ink); font: 500 14px var(--disp); cursor: pointer; }
.ychip:hover { border-color: var(--ink); }
.ychip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.projtotal { margin: 20px 0 6px; font-size: 15px; color: var(--muted); }
.projtotal b { color: var(--ink); font-family: var(--disp); }
.pgroup__head { display: flex; align-items: baseline; gap: 12px; margin: 30px 0 0; padding-bottom: 10px; border-bottom: 2px solid var(--ink); }
.pgroup__head span { font: 700 28px/1 var(--disp); letter-spacing: -0.04em; }
.pgroup__head small { font-size: 14px; color: var(--muted); }
.projs { list-style: none; margin: 0; padding: 0; }
.proj { display: grid; grid-template-columns: 40px minmax(0, 1fr) auto; gap: 16px; align-items: start; padding: 20px 0; border-bottom: 1px solid var(--line); }
.proj__no { padding-top: 3px; font: 500 14px var(--disp); color: var(--muted); }
.proj__name { margin: 0 0 8px; font-size: 18px; font-weight: 700; line-height: 1.45; color: var(--ink); }
.proj__meta { display: flex; flex-wrap: wrap; gap: 4px 24px; margin: 0; font-size: 14px; }
.proj__meta div { display: flex; gap: 8px; }
.proj__meta dt { font-weight: 700; color: var(--muted); }
.proj__meta dd { margin: 0; }
.num { font-variant-numeric: tabular-nums; }

/* ---------- 구성원 뒤집기 카드 (구성원 페이지만) ---------- */
.pgrp { margin-bottom: 56px; }
.pgrp__t { display: flex; align-items: baseline; gap: 8px; margin: 0 0 20px; font-size: 24px; }
html[lang="en"] .pgrp__t { font-family: var(--disp); font-weight: 500; letter-spacing: -0.035em; }
.pgrp__t b { font-size: 16px; color: var(--violet-ink); }
.pcards { display: grid; grid-template-columns: repeat(auto-fill, minmax(214px, 1fr)); gap: 20px; list-style: none; margin: 0; padding: 0; }
.pcard { position: relative; perspective: 1100px; }
.pcard__in { position: relative; min-height: 256px; transform-style: preserve-3d; transition: transform .6s cubic-bezier(.2, .7, .2, 1); }
@media (hover: hover) { .pcard:hover .pcard__in { transform: rotateY(180deg); } }
.pcard:focus-within .pcard__in, .pcard.is-flipped .pcard__in { transform: rotateY(180deg); }
.pcard__face { position: absolute; inset: 0; display: flex; flex-direction: column; padding: 22px; border-radius: var(--r-lg); backface-visibility: hidden; -webkit-backface-visibility: hidden; }
.pcard__front { align-items: flex-start; background: #fff; border: 1px solid var(--line); border-top: 5px solid var(--tc); }
.pcard__back { background: var(--plum); color: #fff; transform: rotateY(180deg); }
.pcard__ph { width: 74px; height: 74px; margin-bottom: auto; border-radius: 50%; display: grid; place-items: center; background: var(--tc); color: #fff; font: 700 20px var(--disp); }
.pcard__name { margin: 16px 0 2px; font-size: 18px; font-weight: 800; line-height: 1.35; color: var(--ink); }
.pcard__name span { display: block; font-size: 15px; font-weight: 500; color: var(--muted); }
.pcard__pos { margin: 0 0 12px; font-size: 14px; color: var(--muted); }
.pcard__topic { margin: 0 0 auto; padding-right: 40px; font-size: 18px; font-weight: 700; line-height: 1.4; color: #fff; }
.pcard__dl { margin: 16px 0 0; font-size: 14px; }
.pcard__dl div { display: flex; gap: 8px; padding: 3px 0; }
.pcard__dl dt { min-width: 46px; color: var(--violet-lite); }
.pcard__dl dd { margin: 0; }
.pcard__dl a { color: #fff; }
.pcard__flip { position: absolute; right: 14px; top: 16px; z-index: 2; min-height: 32px; padding: 0 12px; border-radius: 99px; border: 1px solid var(--line); background: #fff; color: var(--ink); font: 700 12px var(--font); cursor: pointer; }
@media (min-width: 1024px) {
  .pcards { padding-bottom: 28px; }
  .pcard:nth-child(even) { transform: translateY(28px); }
}

/* ---------- 소식 카드 ---------- */
.ncards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; list-style: none; margin: 0; padding: 0; }
.ncard { display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--line); border-radius: var(--r-lg); }
.ncard__art { position: relative; display: grid; place-items: center; aspect-ratio: 16 / 6; overflow: hidden; background: radial-gradient(circle at 78% 30%, var(--tc) 0, transparent 58%), var(--plum); }
.ncard__art::before, .ncard__art::after { content: ""; position: absolute; left: 50%; top: 50%; width: 120%; height: 70%; border: 1px solid rgba(255,255,255,.18); border-radius: 50%; transform: translate(-50%, -50%) rotate(-12deg); }
.ncard__art::after { height: 150%; width: 60%; transform: translate(-50%, -50%) rotate(28deg); }
.ncard__art span { position: relative; font: 300 26px var(--disp); color: #fff; letter-spacing: -0.03em; }
.ncard__b { padding: 20px 22px 24px; }
.ncard__m { display: flex; align-items: center; gap: 10px; margin: 0 0 8px; }
.ncard__t { margin: 0 0 8px; font-size: 19px; line-height: 1.4; }
.ncard__b p:last-child { margin: 0; color: var(--muted); }

/* =========================================================
   회로 실험실 (대표 기능)
   ========================================================= */
.qc { display: grid; gap: 18px; }
.qc__tools { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 22px; align-items: start; }
.qc__palette { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.qc__gate { display: grid; grid-template-columns: 46px 1fr; grid-template-rows: auto auto; column-gap: 12px; align-items: center; padding: 12px 14px; border: 2px solid var(--line); border-radius: 16px; background: #fff; color: var(--ink); text-align: left; cursor: pointer; transition: border-color .2s, background-color .2s; }
.qc__gate:hover { border-color: var(--muted); }
.qc__gate[aria-pressed="true"] { border-color: var(--ink); background: var(--mist); }
.qc__gsym { grid-row: span 2; width: 46px; height: 46px; border-radius: 10px; display: grid; place-items: center; background: var(--violet); color: #fff; font: 700 18px var(--disp); }
.qc__gate--X .qc__gsym { background: var(--t-alg); }
.qc__gate--Z .qc__gsym { background: var(--t-qec); }
.qc__gate--C .qc__gsym { background: var(--plum); color: var(--gold); font-size: 14px; letter-spacing: -1px; }
.qc__gname { font: 700 16px var(--disp); }
.qc__ghelp { font-size: 13px; line-height: 1.4; color: var(--muted); }
.qc__side { display: grid; gap: 8px; justify-items: start; }
.qc__tl { margin: 0; font-size: 13px; font-weight: 700; color: var(--muted); }
.qc__presets { display: flex; flex-wrap: wrap; gap: 6px; }
.qc__pre { min-height: 38px; padding: 0 13px; border-radius: 99px; border: 1.5px solid var(--line); background: #fff; color: var(--ink); font: 600 14px var(--font); cursor: pointer; }
.qc__pre:hover { border-color: var(--ink); }
.qc__pre[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.qc__clear { padding: 6px 0; border: 0; background: none; color: var(--violet-ink); font: 700 14px var(--font); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
.qc__hint { margin: 0; padding: 12px 16px; border-radius: 12px; background: var(--mist); font-size: 15px; }
.qc__board { padding: 18px 24px 22px; border-radius: var(--r-lg); background: var(--plum); color: #fff; }
.qc__steps, .qc__row { display: grid; grid-template-columns: 76px repeat(6, minmax(0, 1fr)) 46px; align-items: center; }
.qc__steps span { text-align: center; font: 500 12px var(--disp); color: rgba(255,255,255,.5); }
.qc__row { height: 80px; background: linear-gradient(rgba(255,255,255,.38), rgba(255,255,255,.38)) no-repeat 76px 50% / calc(100% - 76px - 30px) 2px; }
.qc__label { font: 500 15px var(--disp); white-space: nowrap; }
.qc__init { font-size: 13px; color: rgba(255,255,255,.6); }
.qc__wire { display: contents; }
.qc__slot { position: relative; height: 80px; padding: 0; border: 0; background: transparent; display: grid; place-items: center; cursor: pointer; color: #fff; }
.qc__slot::before { content: ""; position: absolute; left: 50%; top: 50%; width: 44px; height: 44px; margin: -22px 0 0 -22px; border-radius: 10px; border: 1.5px dashed rgba(255,255,255,.25); transition: border-color .2s, background-color .2s; }
.qc__slot.filled::before { border-color: transparent; }
.qc__slot:hover::before, .qc__slot:focus-visible::before { border-color: var(--gold); border-style: solid; background: rgba(255, 184, 0, .1); }
.qc__slot:focus-visible { outline: none; }
.qc__slot.is-pending::before { border: 2px solid var(--gold); background: rgba(255, 184, 0, .18); }
.qc__slot.ln-up::after, .qc__slot.ln-down::after { content: ""; position: absolute; left: 50%; width: 3px; margin-left: -1.5px; background: var(--gold); }
.qc__slot.ln-up::after { top: 0; height: 50%; }
.qc__slot.ln-down::after { top: 50%; height: 50%; }
.qc__slot.ln-up.ln-down::after { top: 0; height: 100%; }
.g { position: relative; z-index: 1; width: 46px; height: 46px; border-radius: 10px; display: grid; place-items: center; background: var(--violet); color: #fff; font: 700 19px var(--disp); }
.g--X { background: var(--t-alg); }
.g--Z { background: var(--t-qec); }
.g-ctl { position: relative; z-index: 1; width: 18px; height: 18px; border-radius: 50%; background: var(--gold); }
.g-tgt { position: relative; z-index: 1; width: 36px; height: 36px; border-radius: 50%; border: 3px solid var(--gold); background: var(--plum); }
.g-tgt::before, .g-tgt::after { content: ""; position: absolute; left: 50%; top: 50%; background: var(--gold); transform: translate(-50%, -50%); }
.g-tgt::before { width: 3px; height: 100%; }
.g-tgt::after { width: 100%; height: 3px; }
.qc__meter { display: grid; place-items: center; color: rgba(255,255,255,.75); }
.qc__meter svg { width: 30px; height: 24px; }
.qc__nojs { margin: 0; color: var(--muted); }
.qc__out { padding: 22px 24px; border: 1px solid var(--line); border-radius: var(--r-lg); }
.qc__outhead { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 6px 20px; margin-bottom: 14px; }
.qc__oh { margin: 0; font-size: 20px; }
html[lang="en"] .qc__oh { font-family: var(--disp); font-weight: 500; letter-spacing: -0.03em; }
.qc__state { margin: 0; font-size: 15px; color: var(--muted); font-variant-numeric: tabular-nums; }
.qc__bars { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 36px; list-style: none; margin: 0; padding: 0; }
.qc__b { display: grid; grid-template-columns: 60px 1fr 58px; gap: 10px; align-items: center; transition: opacity .2s; }
.qc__ket { font: 500 15px var(--disp); }
.qc__track { height: 14px; border-radius: 99px; background: var(--mist); overflow: hidden; }
.qc__track i { display: block; height: 100%; background: var(--violet); transform-origin: left; transition: transform .35s cubic-bezier(.2, .7, .2, 1), background-color .2s; }
.qc__pct { text-align: right; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--ink); }
.qc__b.is-zero { opacity: .42; }
.qc__b.is-hit .qc__track i { background: var(--gold); }
.qc__b.is-hit .qc__ket { color: var(--violet-ink); font-weight: 700; }
.qc__mrow { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 20px; }
.qc__result { margin: 0; font-weight: 700; color: var(--ink); }

/* 샘플 링크 안내 */
.toast { position: fixed; left: 50%; bottom: 24px; z-index: 250; max-width: min(92vw, 520px); padding: 12px 18px; border-radius: 12px; background: var(--ink); color: #fff; font-size: 15px; line-height: 1.5; opacity: 0; transform: translate(-50%, 16px); pointer-events: none; transition: opacity .25s, transform .25s; }
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* 등장 — 스크립트가 준비됐을 때만 숨겼다가 보여 준다 */
.has-motion.qready .reveal:not(.is-in) { opacity: 0; transform: translateY(22px); }
.has-motion.qready .reveal { transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); }

/* =========================================================
   반응형
   ========================================================= */
@media (max-width: 1023px) {
  html { scroll-padding-top: 84px; }
  .hero__in { grid-template-columns: 1fr; gap: 36px; padding: 44px 0 52px; min-height: 0; }
  .bloch { justify-self: center; width: 100%; }
  .wires__score { padding-left: 24px; }
  .wires__gates, .wires__axis { left: 24px; }
  .wires__name { right: auto; left: 0; top: 4px; transform: none; width: auto; text-align: left; font-size: 12px; color: var(--muted); }
  .play__in, .people__in, .board__in { grid-template-columns: 1fr; gap: 40px; }
  .qpage { grid-template-columns: minmax(0, 1fr); gap: 28px; padding: 28px 0 72px; }
  .qtoc nav { position: static; }
  .qtoc__g { font-size: 16px; margin-bottom: 10px; }
  .qtoc ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; border: 0; }
  .qtoc a { margin: 0; padding: 10px 12px; border: 1.5px solid var(--line); border-radius: 12px; grid-template-columns: 30px 1fr; font-size: 15px; }
  .qtoc a[aria-current] { border-color: var(--violet); background: var(--violet-soft); }
  .qsub__orbit { width: 380px; height: 380px; margin-top: -190px; right: -140px; opacity: .7; }
  .publist__body { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .yidx { position: static; }
  .yidx__t { display: none; }
  .yidx ul { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 6px; scrollbar-width: thin; }
  .yidx a { flex: none; gap: 8px; border: 1.5px solid var(--line); }
  .topics, .others { grid-template-columns: minmax(0, 1fr); }
  .qc__tools { grid-template-columns: minmax(0, 1fr); }
  .visit__in { grid-template-columns: 1fr; }
  .visit__cta { grid-column: 1; grid-row: auto; margin-top: 18px; }
  .qfoot__in { grid-template-columns: 1fr; }
}
@media (max-width: 767px) {
  body { font-size: 16px; }
  .container { width: calc(100% - 32px); }
  .qh__dept { font-size: 12px; }
  .hero__lead { font-size: 16px; }
  .bloch__stage { width: min(100%, 330px); }
  .eq__in { grid-template-columns: 1fr; padding: 34px 0 30px; }
  .eq__term a { padding: 6px 8px 8px; }
  .wires, .people, .board, .play { padding: 64px 0; }
  .visit { padding: 60px 0; }
  .wires__score { --row: 64px; --gw: 32px; padding: 20px 14px 40px; }
  .wires__gates, .wires__axis { left: 14px; right: 14px; }
  .wires__gates { top: 20px; }
  .wg { font-size: 12px; border-width: 2px; border-radius: 8px; }
  .wl { grid-template-columns: minmax(0, 1fr); }
  .play__bars { grid-template-columns: 1fr; }
  .lv__row { grid-template-columns: 1fr; gap: 6px; padding-bottom: 34px; }
  .prof { flex-direction: column; }
  .blist li, .blist--page li { grid-template-columns: auto 1fr; }
  .blist li p { grid-column: 1 / -1; }
  .welcome__grid { grid-template-columns: 1fr; gap: 20px; }
  .welcome__grid .prof__ph--lg, .profile .prof__ph--lg { width: 96px; height: 96px; font-size: 24px; }
  .profile { flex-direction: column; align-items: flex-start; gap: 20px; }
  .glance { grid-template-columns: 1fr; }
  .glance > div { grid-template-columns: 104px 1fr; }
  .steps li { grid-template-columns: 1fr; gap: 0; }
  .dtable th, .dtable td { display: block; width: auto; padding-right: 0; }
  .dtable th { padding-bottom: 0; border-bottom: 0; }
  .atable thead { display: none; }
  .atable, .atable tbody, .atable tr, .atable th, .atable td { display: block; }
  .atable tr { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .atable th, .atable td { padding: 2px 0; border: 0; }
  .mailcards, .mini, .ncards { grid-template-columns: minmax(0, 1fr); }
  .qtitle__desc { font-size: 16px; }
  .ptabs { flex-wrap: nowrap; overflow-x: auto; }
  .ptabs button { flex: none; padding: 10px 12px; font-size: 15px; }
  .psearch, .psearch input { width: 100%; }
  .pub { grid-template-columns: 38px minmax(0, 1fr); gap: 10px; }
  .pub__title { font-size: 17px; }
  .ychips { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; }
  .ychip { flex: none; }
  .proj { grid-template-columns: 30px minmax(0, 1fr); gap: 10px; }
  .proj .tag { grid-column: 2; justify-self: start; }
  .bigtabs a { font-size: 18px; }
  .qc__palette { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .qc__gate { grid-template-columns: 38px 1fr; padding: 10px; column-gap: 10px; }
  .qc__gsym { width: 38px; height: 38px; font-size: 16px; }
  .qc__ghelp { display: none; }
  .qc__board { padding: 12px 10px 16px; }
  .qc__steps, .qc__row { grid-template-columns: 50px repeat(6, minmax(0, 1fr)) 26px; }
  .qc__row { height: 64px; background-position: 50px 50%; background-size: calc(100% - 50px - 14px) 2px; }
  .qc__slot { height: 64px; }
  .qc__slot::before { width: 36px; height: 36px; margin: -18px 0 0 -18px; }
  .qc__label { font-size: 13px; }
  .qc__init { display: none; }
  .qc__meter svg { width: 22px; }
  .g { width: 38px; height: 38px; font-size: 16px; }
  .g-tgt { width: 30px; height: 30px; }
  .qc__bars { grid-template-columns: minmax(0, 1fr); }
  .qc__out { padding: 18px 16px; }
}

/* =========================================================
   동작 줄이기 — 1단계(세차 운동·카드 회전·이동 등장)는 끄고, 색·투명도 피드백은 둔다
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .btn, a, .tchip, .qc__slot::before, .qc__b, .toast { transition-duration: .2s !important; }
  .has-motion.qready .reveal:not(.is-in) { transform: none; }
  .pcard__in { transform-style: flat; }
  .pcard:hover .pcard__in, .pcard:focus-within .pcard__in, .pcard.is-flipped .pcard__in { transform: none; }
  .pcard__back { transform: none; opacity: 0; transition: opacity .2s !important; }
  .pcard:hover .pcard__back, .pcard:focus-within .pcard__back, .pcard.is-flipped .pcard__back { opacity: 1; }
}