/* =========================================================
   MOVE Lab — 연구실형(공학) 전용 스타일 (랜딩 키트 style.css 위에 더한다)
   기준: dicolab-design references/lab-site.md · seo-aeo-geo.md
   콘셉트: 지하철 노선도 — 연구 주제 = 노선(초록·파랑·빨강), 과제 = 역, 두 주제가 만나는 과제 = 환승역
   색(2026-10-29 사용자 지시): 파스텔·종이색 대신 선명하고 명확한 색 — 흰 바탕 + 짙은 남흑 + 원색에 가까운 노선 세 개,
   신호등 노랑(--c-signal)은 지원·주 버튼과 핵심어 밑줄에만. 글자로 쓰는 파랑(--c-primary)은 흰 바탕 4.5:1 이상
   ========================================================= */
:root {
  --c-ink: #0B0D12;
  --c-text: #22262E;
  --c-muted: #5B6270;
  --c-line: #E1E5EC;
  --c-line-strong: #8A93A3;
  --c-bg: #fff;
  --c-surface: #F3F5F8;
  --c-gray: #EDF0F5;
  --c-primary: #0050E6;
  --c-primary-deep: #0B0D12;
  --c-primary-soft: #E3ECFF;
  --c-signal: #FFD400;       /* 신호등 노랑 — 버튼 면(글자는 남흑) */
  --c-sun: #FFD400;
  --c-w: #00B140; --c-t: #0066FF; --c-s: #FF3B30;
  --c-notice-bg: #FFF0EF; --c-notice: #D81F14;
  --font-display: "Noto Sans KR", var(--font-body);
  --font-mono: "Space Mono", ui-monospace, Menlo, Consolas, monospace;
  --radius-xl: 6px; --radius: 6px; --radius-sm: 4px;   /* 표지판처럼 각지게 */
  --shadow-card: 0 10px 28px rgba(20, 22, 26, .1);
}
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: 0; }
[hidden] { display: none !important; }
.sec-title, .page-head__title, .sub-visual__group, .statement__lead, .intro__lead { letter-spacing: -0.035em; }
.sec-title b, .statement__lead b, .intro__lead b { color: var(--c-primary); }

/* 머리글: 1차 6개 */
.gnb__link, .util-btn { white-space: nowrap; }
.logo__ko { font-family: var(--font-mono); font-weight: 700; letter-spacing: -0.02em; }
.logo__en { letter-spacing: .02em; font-size: .6875rem; }
@media (max-width: 1360px) { .gnb__link { min-width: 0; padding: 0 clamp(10px, 1.3vw, 22px); font-size: 1.0625rem; } .site-header__inner { gap: 16px; } }
body[data-group="research"] .gnb__item[data-group="research"] > .gnb__link,
body[data-group="people"] .gnb__item[data-group="people"] > .gnb__link,
body[data-group="pubs"] .gnb__item[data-group="pubs"] > .gnb__link,
body[data-group="join"] .gnb__item[data-group="join"] > .gnb__link { color: var(--c-primary); }

/* 버튼 */
.btn--signal { background: var(--c-signal); color: var(--c-ink); }
.btn--signal:hover { background: #FFE24D; color: var(--c-ink); }
.btn--outline { border: 1.5px solid rgba(255, 255, 255, .7); background: transparent; color: #fff; }
.btn--outline:hover { background: #fff; color: var(--c-ink); }
.btn--line { border-color: var(--c-ink); }
.btn--small { min-height: 40px; padding: 0 16px; font-size: .9375rem; }
.linklike { padding: 4px 0; border: 0; background: none; cursor: pointer; font: inherit; font-weight: 700; color: var(--c-primary); text-decoration: underline; text-underline-offset: .2em; }
.fine { margin-top: 18px; font-size: .875rem; line-height: 1.6; color: var(--c-muted); }
.page-head__updated { font-size: .8125rem; color: var(--c-muted); }

/* 노선 꼬리표·칩 */
.ltag { display: inline-flex; align-items: center; gap: 6px; margin-right: 6px; font-size: .8125rem; font-weight: 700; color: var(--c-ink); white-space: nowrap; }
.ltag i, .chip i, .legend__item i, .stnlist h3 i { display: inline-block; width: 18px; height: 6px; border-radius: 3px; background: currentColor; }
.ltag--w i, .chip--w i, .legend__item--w i, .stnlist--w h3 i { background: var(--c-w); }
.ltag--t i, .chip--t i, .legend__item--t i, .stnlist--t h3 i { background: var(--c-t); }
.ltag--s i, .chip--s i, .legend__item--s i, .stnlist--s h3 i { background: var(--c-s); }
.ptag { display: inline-block; padding: 0 8px; border: 1px solid var(--c-line-strong); border-radius: 3px; font-size: .75rem; font-weight: 700; line-height: 1.7; color: var(--c-muted); }
.ptag--new { border-color: var(--c-s); background: var(--c-s); color: #fff; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { display: inline-flex; align-items: center; gap: 8px; min-height: 42px; padding: 0 14px; border: 1.5px solid var(--c-ink); border-radius: 999px; background: #fff; font: inherit; font-size: .9375rem; font-weight: 700; color: var(--c-ink); cursor: pointer; }
.chip[aria-pressed="true"] { background: var(--c-ink); color: #fff; }

/* ---------- 노선도 (메인 히어로·연구 노선도 공통) ---------- */
.net { position: relative; width: 100%; aspect-ratio: 1000 / 560; }
.net__svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.net__line { stroke-width: 12; stroke-linecap: round; stroke-linejoin: round; transition: opacity .3s; }
.stn { position: absolute; transform: translate(-50%, -50%); display: grid; place-items: center; width: 44px; height: 44px; padding: 0; border: 0; background: none; cursor: pointer; transition: opacity .3s; }
span.stn { cursor: default; }
.stn__dot { width: 22px; height: 22px; border-radius: 50%; background: #fff; border: 5px solid var(--c-ink); transition: transform .2s; }
.stn--w .stn__dot { border-color: var(--c-w); }
.stn--t .stn__dot { border-color: var(--c-t); }
.stn--s .stn__dot { border-color: var(--c-s); }
.stn--x .stn__dot { width: 34px; height: 30px; border-radius: 15px; border-color: var(--c-ink); }
button.stn:hover .stn__dot, button.stn:focus-visible .stn__dot { transform: scale(1.18); }
.stn[aria-pressed="true"] .stn__dot { background: var(--c-ink); box-shadow: 0 0 0 6px rgba(255, 212, 0, .7); }
.stn__label { position: absolute; left: 50%; top: calc(100% - 4px); transform: translateX(-50%); width: max-content; max-width: 150px; padding: 2px 6px; border-radius: 3px; background: rgba(255, 255, 255, .92); font-size: .75rem; font-weight: 700; line-height: 1.35; color: var(--c-ink); text-align: center; pointer-events: none; }
.stn--lab-up .stn__label { top: auto; bottom: calc(100% - 4px); }
.stn--lab-left .stn__label { left: auto; right: calc(100% - 6px); top: 50%; transform: translateY(-50%); text-align: right; }
.stn--lab-right .stn__label { left: calc(100% - 6px); top: 50%; transform: translateY(-50%); text-align: left; }
.stn__code { display: block; font-family: var(--font-mono); font-size: .6875rem; font-weight: 400; color: var(--c-muted); }
.net.is-filtered .net__line:not(.is-on) { opacity: .12; }
.net.is-filtered .stn:not(.is-on) { opacity: .25; }
@media (max-width: 1100px) { .stn__label { display: none; } }

/* ---------- 메인 히어로: 움직이는 도시 (캔버스 두 장, js/move.js) ---------- */
.mhero { position: relative; isolation: isolate; overflow: hidden; display: grid; align-content: space-between; min-height: clamp(600px, calc(100svh - var(--header-h) - 40px), 860px); background: #07090D url("../images/net.svg") 88% 50% / min(62%, 900px) auto no-repeat; color: #fff; }
.city { position: absolute; inset: 0; z-index: -2; }
.city canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.mhero::after { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; background: linear-gradient(90deg, rgba(7, 9, 13, .92) 0%, rgba(7, 9, 13, .7) 34%, rgba(7, 9, 13, 0) 64%); }
@media (max-width: 1023px) { .mhero::after { background: linear-gradient(0deg, rgba(7, 9, 13, .94) 0%, rgba(7, 9, 13, .78) 50%, rgba(7, 9, 13, .25) 100%); } .mhero { background-position: 50% 18%; background-size: 110% auto; } }
.mhero__inner { display: grid; align-content: center; padding-block: clamp(56px, 8vw, 120px) 24px; }
@media (max-width: 1023px) { .mhero__inner { align-content: end; padding-top: 180px; } }
.mhero__text { max-width: 600px; }
.mhero .eyebrow { color: var(--c-signal); }
.mhero .eyebrow::before { background: var(--c-signal); }
.mhero__title { margin-top: 16px; font-family: var(--font-display); font-weight: 300; font-size: clamp(2.25rem, 1rem + 3.8vw, 4.25rem); line-height: 1.2; letter-spacing: -0.045em; color: #fff; }
.mhero__title b { font-weight: 800; color: #fff; box-shadow: inset 0 -.24em 0 var(--c-signal); }
.mhero__desc { margin-top: 20px; max-width: 30em; font-size: var(--fs-lead); line-height: 1.7; color: rgba(255, 255, 255, .82); }
.mhero__btns { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 26px; }
.legend__item { display: inline-flex; align-items: center; gap: 8px; min-height: 36px; font-weight: 700; color: #fff; }
.legend__item span { font-family: var(--font-mono); font-size: .75rem; font-weight: 400; color: rgba(255, 255, 255, .6); }
.legend__item:hover { color: var(--c-signal); }
.mhero__foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-bottom: 22px; }
.mhero__cap { font-size: .75rem; color: rgba(255, 255, 255, .6); }
.mhero__cap::before { content: ""; display: inline-block; width: 8px; height: 8px; margin-right: 8px; border-radius: 50%; background: var(--c-s); vertical-align: 1px; }
.city__pause { flex: none; display: grid; place-items: center; width: 44px; height: 44px; border: 1.5px solid rgba(255, 255, 255, .5); border-radius: 50%; background: rgba(7, 9, 13, .4); color: #fff; cursor: pointer; }
.city__pause:hover { background: #fff; color: var(--c-ink); }
.city__pause span { display: block; width: 12px; height: 14px; border-left: 4px solid currentColor; border-right: 4px solid currentColor; }
.city__pause[aria-pressed="true"] span { width: 0; height: 0; border: 0; border-left: 12px solid currentColor; border-top: 7px solid transparent; border-bottom: 7px solid transparent; margin-left: 3px; }
.reduce-motion .city__pause, .no-city .city__pause { display: none; }
.mstats { background: #07090D; padding-bottom: clamp(28px, 4vw, 48px); }
.board-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 0; background: #12151C; color: #fff; border: 1px solid rgba(255, 255, 255, .12); border-radius: var(--radius); overflow: hidden; }
.board-stats div { padding: 16px 20px; border-left: 1px solid rgba(255, 255, 255, .12); }
.board-stats div:first-child { border-left: 0; }
.board-stats dt { font-size: .8125rem; color: rgba(255, 255, 255, .7); }
.board-stats dd { margin: 4px 0 0; font-size: clamp(1.75rem, 1.2rem + 1.6vw, 2.5rem); font-weight: 700; color: var(--c-signal); }
@media (max-width: 639px) { .board-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } .board-stats div:nth-child(3) { border-left: 0; } .board-stats div:nth-child(n+3) { border-top: 1px solid rgba(255, 255, 255, .12); } }

/* 연구 노선 카드 */
.linecards { display: grid; gap: 16px; }
@media (min-width: 900px) { .linecards { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.linecard { position: relative; display: grid; gap: 8px; align-content: start; min-height: 240px; padding: 26px 26px 70px; border: 1.5px solid var(--c-ink); border-radius: var(--radius); background: #fff; color: var(--c-ink); transition: transform .25s var(--ease), box-shadow .25s; }
.linecard:hover { transform: translateY(-4px); box-shadow: 6px 6px 0 var(--c-ink); }
.linecard__bar { position: absolute; left: -1.5px; right: -1.5px; top: -1.5px; height: 12px; border-radius: var(--radius) var(--radius) 0 0; }
.linecard--w .linecard__bar { background: var(--c-w); } .linecard--t .linecard__bar { background: var(--c-t); } .linecard--s .linecard__bar { background: var(--c-s); }
.linecard__en { margin-top: 8px; font-family: var(--font-mono); font-size: .8125rem; color: var(--c-muted); }
.linecard h3 { font-size: clamp(1.375rem, 1.1rem + .8vw, 1.75rem); font-weight: 800; letter-spacing: -0.04em; }
.linecard p { color: var(--c-text); }
.linecard__meta { font-size: .8125rem; color: var(--c-muted); }
.linecard__go { position: absolute; left: 26px; bottom: 22px; display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: var(--c-ink); color: #fff; font-weight: 700; }

/* 그림(SVG)은 사진처럼 겹치지 않고 한 장만, 테두리로 */
.statement__media--art, .intro__media--art { padding: 0; }
.statement__media--art .media, .intro__media--art .media, .post-body .media, .statement__media--art.reveal .media { position: static; width: 100%; aspect-ratio: 3 / 2; border: 1.5px solid var(--c-ink); border-radius: var(--radius); border-width: 1.5px; box-shadow: none; }
.media img { width: 100%; height: 100%; object-fit: cover; }

/* 논문 */
.pubs { border-top: 2px solid var(--c-ink); }
.pub { display: grid; grid-template-columns: 4.2em minmax(0, 1fr); gap: 4px 16px; padding: 18px 0; border-bottom: 1px solid var(--c-line); }
.pub__year { font-size: .9375rem; font-weight: 700; color: var(--c-primary); }
.pub__title { font-weight: 700; font-size: 1.0625rem; line-height: 1.5; color: var(--c-ink); }
.pub__meta { margin-top: 4px; font-size: .9375rem; color: var(--c-muted); }
.pub__meta b { color: var(--c-ink); }
.pub__tags { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 8px; }
.pubtools { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 18px; }
.search input { min-height: 44px; width: min(100%, 300px); padding: 0 14px; border: 1.5px solid var(--c-ink); border-radius: 999px; font: inherit; }
.pubcount { margin-bottom: 10px; font-size: .9375rem; color: var(--c-muted); }
.empty { padding: 28px 0; color: var(--c-muted); }

/* 탑승권 모양 모집 공고 */
.ticket { position: relative; display: grid; gap: 14px; align-content: start; padding: 28px; border-radius: var(--radius); background: var(--c-ink); color: #fff; }
.ticket::before, .ticket::after { content: ""; position: absolute; top: 58px; width: 22px; height: 22px; border-radius: 50%; background: var(--c-surface); }
.ticket::before { left: -11px; } .ticket::after { right: -11px; }
.ticket__head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 16px; border-bottom: 2px dashed rgba(255, 255, 255, .25); font-size: .8125rem; letter-spacing: .08em; color: rgba(255, 255, 255, .7); }
.ticket h2, .ticket h3 { color: #fff; font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem); font-weight: 800; letter-spacing: -0.04em; line-height: 1.3; }
.ticket__info { display: grid; gap: 8px; margin: 0; }
.ticket__info div { display: grid; grid-template-columns: 3.4em minmax(0, 1fr); gap: 12px; }
.ticket__info dt { color: rgba(255, 255, 255, .6); }
.ticket__info dd { margin: 0; }
.ticket .btn { justify-self: start; }
.ticket--wide { margin-bottom: 8px; }
.page .ticket::before, .page .ticket::after { background: #fff; }
.dday { display: inline-block; padding: 1px 8px; border-radius: 3px; background: var(--c-signal); color: var(--c-ink); font-size: .8125rem; font-weight: 700; letter-spacing: 0; }
.is-closed .dday { background: var(--c-muted); }

/* ---------- 연구 노선도 페이지 ---------- */
.netbox__tools { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }
.netbox__grid { display: grid; gap: 20px; align-items: start; }
@media (min-width: 1024px) { .netbox__grid { grid-template-columns: minmax(0, 1fr) 300px; } }
.netbox__map { padding: clamp(10px, 1.6vw, 20px); border: 1.5px solid var(--c-ink); border-radius: var(--radius); background: var(--c-surface); }
.stncard { display: grid; gap: 10px; padding: 24px; border-radius: var(--radius); background: var(--c-ink); color: #fff; }
@media (min-width: 1024px) { .stncard { position: sticky; top: calc(var(--header-h) + 96px); } }
.stncard .ltag { color: #fff; }
.stncard__code { font-size: .8125rem; color: rgba(255, 255, 255, .65); }
.stncard__name { color: #fff; font-size: 1.375rem; font-weight: 800; letter-spacing: -0.03em; line-height: 1.35; }
.stncard__desc { color: rgba(255, 255, 255, .85); font-size: .9375rem; }
.stncard__meta { display: grid; gap: 6px; margin: 4px 0 0; font-size: .875rem; }
.stncard__meta div { display: grid; grid-template-columns: 3em minmax(0, 1fr); gap: 10px; }
.stncard__meta dt { color: rgba(255, 255, 255, .6); }
.stncard__meta dd { margin: 0; }
.stncard .more-link { color: #fff; }
.stncard__hint { font-size: .8125rem; color: rgba(255, 255, 255, .55); }
.stnlists { display: grid; gap: 18px; margin-top: 28px; }
@media (min-width: 900px) { .stnlists { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.stnlist h3 { display: flex; align-items: center; gap: 10px; padding-bottom: 10px; border-bottom: 2px solid var(--c-ink); font-size: 1.0625rem; }
.stnlist h3 span { font-family: var(--font-mono); font-size: .75rem; font-weight: 400; color: var(--c-muted); }
.stnlist__btn { display: flex; align-items: center; gap: 10px; width: 100%; min-height: 48px; padding: 8px 4px; border: 0; border-bottom: 1px solid var(--c-line); background: none; font: inherit; font-size: .9375rem; text-align: left; color: var(--c-ink); cursor: pointer; }
.stnlist__btn:hover, .stnlist__btn[aria-pressed="true"] { background: var(--c-surface); }
.stnlist__btn .stn__code { display: inline; min-width: 2.6em; font-size: .75rem; }
.stnlist__st { margin-left: auto; flex: none; padding: 0 7px; border-radius: 3px; font-size: .75rem; font-weight: 700; line-height: 1.7; background: var(--c-gray); color: var(--c-muted); }
.st--on { background: var(--c-primary-soft); color: var(--c-primary); }
.st--plan { background: #fff; border: 1px dashed var(--c-line-strong); }
.netbox.is-filtered .stnlist:not(.is-on) { opacity: .4; }

/* 표 (과제) — 휴대폰에서는 행마다 카드처럼 */
.lab-table { width: 100%; border-collapse: collapse; border-top: 2px solid var(--c-ink); font-size: .9688rem; }
.lab-table th, .lab-table td { padding: 15px 14px 15px 0; border-bottom: 1px solid var(--c-line); text-align: left; vertical-align: middle; }
.lab-table thead th { font-size: .8125rem; color: var(--c-muted); }
.lab-table tbody th a:hover { color: var(--c-primary); }
@media (max-width: 767px) {
  .lab-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .lab-table, .lab-table tbody, .lab-table tr, .lab-table td, .lab-table th { display: block; }
  .lab-table tr { padding: 14px 0; border-bottom: 1px solid var(--c-line); }
  .lab-table td, .lab-table th { padding: 2px 0; border: 0; }
  .lab-table td[data-label]::before { content: attr(data-label); display: inline-block; min-width: 3.4em; margin-right: 8px; font-family: var(--font-body); font-size: .8125rem; color: var(--c-muted); }
}
.pview .post-body h2 { margin-top: .8em; font-size: 1.1875rem; }
.pview .post-head > span { display: flex; flex-wrap: wrap; }

/* 일하는 방식·지원 순서 */
.ways { display: grid; gap: 14px; }
@media (min-width: 720px) { .ways { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .ways { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.ways li { display: grid; gap: 8px; align-content: start; padding: 22px; border-top: 4px solid var(--c-ink); background: var(--c-surface); }
.ways__n { font-size: .875rem; font-weight: 700; color: var(--c-primary); }
.ways h3 { font-size: 1.125rem; font-weight: 800; letter-spacing: -0.03em; }
.ways p { font-size: .9375rem; color: var(--c-text); }

/* 구성원 */
.people-group + .people-group { margin-top: 44px; }
.people-group__title { display: flex; align-items: baseline; gap: 10px; padding-bottom: 12px; border-bottom: 2px solid var(--c-ink); font-size: var(--fs-h3); font-weight: 800; }
.people-group__title span { font-size: .875rem; color: var(--c-muted); }
.people { display: grid; }
@media (min-width: 720px) { .people { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 32px; } }
@media (min-width: 1100px) { .people { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.person { display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 4px 16px; padding: 20px 0; border-bottom: 1px solid var(--c-line); }
.person__mark { grid-row: span 4; display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; border: 3px solid var(--c-ink); font-weight: 800; font-size: 1.25rem; color: var(--c-ink); }
.person__name { font-weight: 800; font-size: 1.0625rem; color: var(--c-ink); }
.person__name span { margin-left: 8px; font-family: var(--font-mono); font-weight: 400; font-size: .75rem; color: var(--c-muted); }
.person__topic { font-size: .9375rem; color: var(--c-text); }
.person__meta { font-size: .875rem; color: var(--c-muted); }

/* 공개 데이터 */
.dsets { display: grid; gap: 16px; margin-bottom: 28px; }
@media (min-width: 900px) { .dsets { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.dset { position: relative; display: grid; gap: 8px; align-content: start; padding: 28px 24px 22px; border: 1.5px solid var(--c-ink); border-radius: var(--radius); }
.dset__bar { position: absolute; left: 0; top: 0; bottom: 0; width: 8px; }
.dset__bar--w { background: var(--c-w); } .dset__bar--t { background: var(--c-t); } .dset__bar--s { background: var(--c-s); }
.dset h2 { font-size: 1.125rem; font-weight: 800; }
.dset__spec { font-size: .75rem; color: var(--c-muted); }
.dset .linklike { justify-self: start; }

/* 자주 묻는 질문 — 늘 보이는 질문·답 */
.qas { border-top: 2px solid var(--c-ink); }
.qa { padding: 22px 0; border-bottom: 1px solid var(--c-line); }
.qa__q { display: flex; gap: 12px; font-size: 1.0625rem; font-weight: 800; letter-spacing: -0.02em; }
.qa__q::before { content: "Q"; flex: none; font-family: var(--font-mono); color: var(--c-primary); }
.qa__a { margin-top: 8px; padding-left: 1.6em; color: var(--c-text); }

/* 서브 머리: 지도 종이 + 그 메뉴의 노선색 띠 */
.sub-visual--light .sub-visual__panel { background-color: var(--c-surface); background-image: linear-gradient(rgba(20, 22, 26, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(20, 22, 26, .05) 1px, transparent 1px); background-size: 40px 40px; border: 1.5px solid var(--c-ink); }
.sub-visual__line { position: absolute; left: 0; right: 0; bottom: 18%; height: 10px; background: var(--c-ink); opacity: .08; z-index: -1; }
.sub-visual__line { opacity: 1 !important; }
.sub-visual--about .sub-visual__line, .sub-visual--news .sub-visual__line { background: var(--c-ink); }
.sub-visual--research .sub-visual__line { background: var(--c-t); }
.sub-visual--people .sub-visual__line { background: var(--c-w); }
.sub-visual--pubs .sub-visual__line { background: var(--c-s); }
.sub-visual--join .sub-visual__line { background: var(--c-signal); }
.sub-visual--light .sub-visual__en { color: var(--c-primary); font-family: var(--font-mono); letter-spacing: .12em; }
.cta-strip { border: 1.5px solid var(--c-ink); }

/* 바닥글 노선 띠 */
.site-footer__lines { display: flex; gap: 6px; }
.fl { display: block; width: 40px; height: 6px; border-radius: 3px; }
.fl--w { background: var(--c-w); } .fl--t { background: var(--c-t); } .fl--s { background: var(--c-s); }

/* 휴대폰 지원 단추 */
.fab { display: none; }
@media (max-width: 1023px) {
  .fab { position: fixed; right: 16px; bottom: calc(16px + env(safe-area-inset-bottom)); z-index: 90; display: inline-flex; align-items: center; gap: 8px; min-height: 52px; padding: 0 18px 0 12px; border-radius: 999px; background: var(--c-ink); color: #fff; font-weight: 700; box-shadow: 0 10px 24px rgba(20, 22, 26, .3); }
  body:has(.site-menu:not([hidden])) .fab { display: none; }
  .site-footer { padding-bottom: 96px; }
}

/* 알림 */
.move-toast { position: fixed; left: 50%; bottom: 24px; z-index: 300; max-width: calc(100% - 32px); padding: 12px 18px; border-radius: var(--radius-sm); background: var(--c-ink); color: #fff; font-size: .9375rem; transform: translate(-50%, 12px); opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; }
.move-toast.is-on { opacity: 1; transform: translate(-50%, 0); }
@media (max-width: 1023px) { .move-toast { bottom: 84px; } }

@media (prefers-reduced-motion: reduce) {
  .linecard:hover { transform: none; }
  .move-toast { transform: translate(-50%, 0); }
}