/* ==========================================================================
   INTOWN — solutions.css (solutions.html 전용)
   site.css 토큰 · 컴포넌트 위에 페이지 전용 구성만 더합니다. 접두어: sol-
   ========================================================================== */

/* 공통 보조 글자색 대비 보정 — 모든 페이지 CSS 에 같은 값(site.css 토큰이 같은 값으로 바뀌면 지워도 됩니다).
   --fog-3 #6c7585 → #7a8394 (night 위 5.3:1 · night-3 위 4.8:1) · --ink-3 #676e7b → #5f6673 (paper 위 5.2:1 · paper-2 위 4.7:1)
   헤더 · 공통 푸터 · 모바일 메뉴 · 눈썹 라벨 · 서브내비가 모든 페이지에서 같은 회색으로 보입니다. */
:root { --fog-3: #7a8394; --ink-3: #5f6673; }
/* 페이지 전용 강조색 — 밝은 면의 청록 라벨은 #3e9a86(2.8–3.4:1) 대신 #256b5c(paper 위 5.66:1) */
:root, [data-theme="light"] { --sol-kick: #256b5c; }
[data-theme="dark"] { --sol-kick: var(--c-green-hi); }

/* ---------- Shared bits -------------------------------------------------- */
.sol-kicker { font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--sol-kick); line-height: 1.4; }
.sol-tagline { display: inline-flex; align-items: center; height: 24px; padding: 0 10px; border-radius: 999px; border: 1px solid var(--line-c2); font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-2); }
.sol-prod .prod__head { margin-bottom: clamp(44px, 5vw, 76px); }
.sol-prod .prod__name { text-wrap: balance; }
.sol-prod .tag--mono { text-transform: none; }
/* 지원사업 고지 한 줄 (공정 시계열 디지털 트윈 — 공개 시 주의사항) */
.sol-disclose { margin-top: clamp(40px, 4.4vw, 64px); max-width: 56em; }

/* ---------- 제목 위계 ----------------------------------------------------
   대제목(챕터) > 솔루션명(.prod__name) > 하위 솔루션명(.sol-sub__name) > 블록 제목(.sol-row__title) > 항목 제목
   1440px 기준 약 95 / 61 / 45 / 28 / 19px, 390px 기준 48 / 32 / 26 / 20 / 17px — 단계마다 한눈에 구분되는 차이 */
.sol-prod .prod__name { font-size: clamp(2rem, 1.2rem + 2.9vw, 4rem); line-height: 1.06; letter-spacing: -0.044em; }

/* 한국어 줄바꿈: 목록 항목도 마지막 줄에 한 단어만 남지 않도록 */
.sol-points li, .sol-ops li, .sol-record__list li, .sol-offers__list li, main .ticks li, .sol-srm__cards span, .sol-arch__node > span:last-child { text-wrap: pretty; }

/* 섹션 사이 여백: 같은 흐름의 제품 섹션은 위 여백을 줄이고, 챕터 바로 뒤는 더 붙입니다 */
.sol-prod + .sol-prod { padding-top: clamp(72px, 8vw, 120px); }
.sol-chapter + .sol-prod { padding-top: clamp(48px, 5vw, 80px); }
/* 같은 테마가 이어지면 아래 여백도 줄여 빈 띠가 생기지 않게 합니다 */
.sol-prod[data-theme="dark"]:has(+ .sol-prod[data-theme="dark"]),
.sol-prod[data-theme="light"]:has(+ .sol-prod[data-theme="light"]) { padding-bottom: clamp(72px, 8vw, 120px); }
/* 마지막 제품 섹션(어두운 면)과 CTA 띠가 같은 면으로 이어질 때: 빈 띠를 줄이고 헤어라인으로 나눕니다 */
.sol-prod[data-theme="dark"]:has(+ .cta-band) { padding-bottom: clamp(56px, 6vw, 96px); }
.sol-prod[data-theme="dark"] + .cta-band { border-top: 1px solid var(--line-c); }

/* 테스트베드 화면 표시 (MES 이전 화면) */
.sol-tb { margin-left: auto; flex: none; display: inline-flex; align-items: center; height: 20px; padding: 0 9px; border-radius: 999px; background: var(--ink); color: #fff; font-family: var(--font-sans); font-size: 0.6875rem; font-weight: 600; letter-spacing: 0; text-transform: none; line-height: 1; }


/* 인증서 카드 (prod__aside) */
.sol-cert { display: grid; grid-template-columns: 68px minmax(0, 1fr); gap: 18px; align-items: center; padding: 14px 18px 14px 14px; border-radius: var(--radius-m); border: 1px solid var(--line-c); background: color-mix(in oklab, var(--fg) 3.5%, transparent); }
.sol-cert__thumb { display: block; aspect-ratio: 5 / 7; border-radius: 6px; overflow: hidden; background: #fff; box-shadow: 0 10px 22px -14px rgba(0, 0, 0, 0.6); }
.sol-cert__thumb img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.sol-cert__body { display: grid; gap: 4px; min-width: 0; }
.sol-cert__kicker { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--sol-kick); }
.sol-cert__name { font-size: 0.9375rem; font-weight: 620; line-height: 1.45; letter-spacing: -0.018em; color: var(--fg); }
.sol-cert__meta { font-size: 0.8125rem; color: var(--fg-2); }
.sol-aside-note { display: grid; gap: 4px; padding-top: 14px; border-top: 1px solid var(--line-c); font-size: 0.875rem; line-height: 1.55; color: var(--fg-2); }
.sol-aside-note b, .sol-offers__label, .sol-aside-label { font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); }

/* 제공 솔루션 (덱의 솔루션 구성 — 제목만) */
.sol-offers { display: grid; gap: 10px; }
.sol-offers__list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line-c); }
.sol-offers__list li { padding: 11px 0; border-bottom: 1px solid var(--line-c); font-size: 0.9375rem; font-weight: 560; line-height: 1.45; letter-spacing: -0.015em; color: var(--fg); }
.sol-offers__list a { display: inline-flex; align-items: center; gap: 8px; background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat; padding-bottom: 1px; transition: background-size 0.5s var(--ease-out); }
.sol-offers__list a:hover { background-size: 100% 1px; }
.sol-offers__list a svg { width: 14px; height: 14px; flex: none; color: var(--fg-2); transition: transform 0.45s var(--ease-out); }
.sol-offers__list a:hover svg { transform: translate(2px, -2px); }

/* 핵심 문장 (prod__aside) — 번호 없이 가는 선으로만 구분 */
.sol-points { list-style: none; margin: 0; padding: 0; display: grid; border-top: 1px solid var(--line-c); }
.sol-points li { padding: 13px 0; border-bottom: 1px solid var(--line-c); font-size: 0.9375rem; line-height: 1.55; color: var(--fg-2); }

/* 기술 구성 (공구 수명 aside) */
.sol-chain { margin-top: 10px; grid-template-columns: minmax(96px, 34%) 1fr; }

/* 세그먼트 토글 */
.sol-seg { display: inline-flex; gap: 2px; padding: 4px; border-radius: 999px; background: color-mix(in oklab, var(--fg) 6%, transparent); border: 1px solid var(--line-c); }
.sol-seg__btn { display: inline-flex; align-items: center; gap: 8px; height: 34px; padding: 0 15px; border-radius: 999px; font-size: 0.8125rem; font-weight: 600; letter-spacing: -0.01em; color: var(--fg-2); white-space: nowrap; transition: background-color 0.3s, color 0.3s; }
.sol-seg__btn:hover { color: var(--fg); }
.sol-seg__btn[aria-pressed="true"] { background: var(--fg); color: var(--bg); }
.sol-seg__dot { width: 7px; height: 7px; border-radius: 50%; flex: none; }
.sol-seg__dot--ok { background: #43b35e; }
.sol-seg__dot--ng { background: #e5484d; }

/* 화면 전환 뷰어 (OK/NG · MCT/사출) */
.sol-switch { display: grid; gap: 14px; }
.sol-switch__head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px 20px; }
.sol-switch__label { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-2); }
.sol-switch__stage { position: relative; aspect-ratio: var(--ar, 16 / 9); }
.frame__media.sol-switch__stage img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top center; opacity: 0; transition: opacity 0.7s var(--ease-out); }
.frame__media.sol-switch__stage img.is-active { opacity: 1; }

/* 움직임 일시정지 (화면 밖 · 사용자 선택) */
.is-paused *, .is-paused *::before, .is-paused *::after { animation-play-state: paused !important; }

/* ---------- Hero --------------------------------------------------------- */
.sol-hero { isolation: isolate; }
.sol-hero__inner { max-width: min(100% - var(--gutter) * 2, var(--container)); }
.sol-hero .page-hero__title { max-width: 9.6em; }
.sol-hero .page-hero__lead { max-width: 34em; }
.sol-hero .page-hero__meta { max-width: 44rem; }
.sol-wall { position: absolute; z-index: 1; top: 0; bottom: 0; right: 0; width: min(47vw, 780px); display: flex; gap: 14px; overflow: hidden; pointer-events: none; }
.sol-wall::after { content: ""; position: absolute; inset: 0; z-index: 2;
  background:
    linear-gradient(90deg, var(--night) 0%, rgba(5, 7, 12, 0.8) 22%, rgba(5, 7, 12, 0.38) 52%, rgba(5, 7, 12, 0.3) 100%),
    linear-gradient(180deg, var(--night) 0%, rgba(5, 7, 12, 0.9) 11%, rgba(5, 7, 12, 0) 32%, rgba(5, 7, 12, 0) 72%, var(--night) 100%); }
.sol-wall__col { position: relative; flex: 1 1 0; min-width: 0; }
.sol-wall__col--rev { margin-top: -140px; }
.sol-wall__track { display: flex; flex-direction: column; gap: 14px; animation: sol-wall-y 90s linear infinite; will-change: transform; }
.sol-wall__col--rev .sol-wall__track { animation-direction: reverse; animation-duration: 110s; }
.sol-wall__set { display: flex; flex-direction: column; gap: 14px; }
.sol-wall img { width: 100%; height: auto; border-radius: 10px; border: 1px solid rgba(255, 255, 255, 0.08); filter: saturate(0.45) brightness(0.6) contrast(1.05); }
@keyframes sol-wall-y { to { transform: translate3d(0, calc(-50% - 7px), 0); } }
@keyframes sol-wall-x { to { transform: translate3d(calc(-50% - 6px), 0, 0); } }

/* 배경 움직임 멈춤 (WCAG 2.2.2) */
.sol-wall__toggle { position: absolute; z-index: 3; right: var(--gutter); bottom: clamp(20px, 2.6vw, 36px); width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; color: var(--fog-2); background: rgba(5, 7, 12, 0.6); border: 1px solid var(--line-d-strong); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); transition: color 0.25s, border-color 0.25s, background-color 0.25s; }
.sol-wall__toggle:hover { color: var(--fog); border-color: rgba(255, 255, 255, 0.34); background: rgba(5, 7, 12, 0.8); }
.sol-wall__icon { width: 13px; height: 13px; grid-area: 1 / 1; }
.sol-wall__icon--play { visibility: hidden; }
.sol-hero.is-user-paused .sol-wall__icon--pause { visibility: hidden; }
.sol-hero.is-user-paused .sol-wall__icon--play { visibility: visible; }
.sol-wall__label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }

@media (max-width: 1080px) {
  .sol-wall { width: 44vw; opacity: 0.7; }
}
@media (max-width: 960px) {
  .sol-hero { padding-top: calc(var(--header-h) + 196px); }
  .sol-wall { top: calc(var(--header-h) + 18px); bottom: auto; left: 0; right: 0; width: auto; height: 138px; opacity: 1; flex-direction: column; }
  .sol-wall::after { background: linear-gradient(90deg, var(--night) 0%, rgba(5, 7, 12, 0) 16%, rgba(5, 7, 12, 0) 84%, var(--night) 100%); }
  .sol-wall__col--rev { display: none; }
  .sol-wall__col { flex: none; height: 100%; }
  .sol-wall__track, .sol-wall__set { flex-direction: row; gap: 12px; height: 100%; }
  .sol-wall__track { width: max-content; animation-name: sol-wall-x; animation-duration: 70s; }
  .sol-wall img { width: auto; height: 100%; }
  .sol-wall__toggle { top: calc(var(--header-h) + 18px + 138px - 42px); bottom: auto; right: 10px; width: 32px; height: 32px; }
}
@media (prefers-reduced-motion: reduce) {
  .sol-wall__track { animation: none; }
  .sol-wall__toggle { display: none; }
}

/* ---------- Sub nav (테마 연동 · 그룹 구분선) -------------------------------- */
.sol-subnav { transition: top 0.6s var(--ease-out), background-color 0.45s, border-color 0.45s, color 0.45s; }
/* 링크 색 · 좁은 화면 목록 배치는 ai · company · references 서브내비와 같습니다(어두운 섹션 위에서도 4.5:1 이상) */
.sol-subnav .subnav__link { color: color-mix(in oklab, var(--fg-2) 50%, var(--fg-3)); transition: color 0.25s, border-color 0.25s; }
.sol-subnav .subnav__link:hover, .sol-subnav .subnav__link.is-active { color: var(--fg); }
.sol-subnav__sep { flex: none; align-self: center; width: 1px; height: 16px; margin: 0 6px; background: var(--line-c2); }
@media (max-width: 1080px) {
  .sol-subnav .subnav__list { --fade-l: 32px; --fade-r: 44px; -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 var(--fade-l), #000 calc(100% - var(--fade-r)), transparent 100%); mask-image: linear-gradient(90deg, transparent 0, #000 var(--fade-l), #000 calc(100% - var(--fade-r)), transparent 100%); }
  .sol-subnav .subnav__list.is-at-start { --fade-l: 0px; }
  .sol-subnav .subnav__list.is-at-end { --fade-r: 0px; }
  .sol-subnav__sep { display: none; }
}
@media (max-width: 860px) {
  .sol-subnav > .container { width: 100%; }
  .sol-subnav .subnav__list { padding-inline: calc(var(--gutter) - 12px); scroll-padding-inline: var(--gutter); }
  .sol-subnav .subnav__link { padding: 0 12px; }
}

/* ---------- 00 Portfolio ------------------------------------------------- */
.sol-pf__list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line-c2); }
.sol-pf__row { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(16px, 2vw, 32px); row-gap: 14px; align-items: start; padding: clamp(24px, 2.6vw, 36px) 0; border-bottom: 1px solid var(--line-c); }
.sol-pf__num { grid-column: 1 / span 1; padding-top: 12px; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em; color: var(--fg-3); }
.sol-pf__name { grid-column: 2 / span 4; font-size: clamp(1.5rem, 1.05rem + 1.3vw, 2.375rem); line-height: 1.12; letter-spacing: -0.038em; font-weight: 650; }
ul.sol-pf__links { grid-column: 6 / span 7; list-style: none; margin: 0; padding: 0; display: grid; }
.sol-pf__links a { display: grid; grid-template-columns: 52px minmax(0, 1fr) 16px; align-items: center; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--line-c); font-size: 1rem; font-weight: 600; line-height: 1.45; letter-spacing: -0.015em; transition: padding 0.45s var(--ease-out), border-color 0.3s; }
.sol-pf__links li:first-child a { padding-top: 4px; }
.sol-pf__links li:last-child a { border-bottom-color: transparent; }
.sol-pf__idx { font-family: var(--font-mono); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.04em; color: var(--fg-3); }
.sol-pf__links svg { width: 15px; height: 15px; color: var(--fg-3); transition: transform 0.45s var(--ease-out), color 0.25s; }
.sol-pf__links a:hover { padding-left: 6px; border-bottom-color: var(--fg); }
.sol-pf__links li:last-child a:hover { border-bottom-color: var(--fg); }
.sol-pf__links a:hover svg { transform: translateX(3px); color: var(--fg); }
.sol-pf__links a[href$=".html"]:hover svg { transform: translate(2px, -2px); }
@media (max-width: 1080px) {
  .sol-pf__name { grid-column: 2 / span 4; }
  ul.sol-pf__links { grid-column: 6 / span 7; }
}
@media (max-width: 760px) {
  .sol-pf__row { row-gap: 12px; }
  .sol-pf__num { grid-column: 1 / span 2; padding-top: 9px; }
  .sol-pf__name { grid-column: 3 / -1; }
  ul.sol-pf__links { grid-column: 1 / -1; }
  .sol-pf__links li:first-child a { padding-top: 11px; }
  .sol-pf__links a { grid-template-columns: 44px minmax(0, 1fr) 16px; font-size: 0.9375rem; }
}

/* 6대 기반 기술 — 한 줄 목록 */
.sol-base { margin-top: clamp(56px, 6vw, 96px); display: grid; gap: 18px; }
.sol-base__list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; row-gap: 10px; font-size: clamp(1rem, 0.94rem + 0.3vw, 1.1875rem); font-weight: 600; letter-spacing: -0.02em; line-height: 1.4; color: var(--fg); }
.sol-base__list li { display: inline-flex; align-items: center; text-wrap: balance; }
.sol-base__list li:not(:last-child)::after { content: ""; width: 5px; height: 5px; margin: 0 16px; border-radius: 50%; background: var(--grad); flex: none; }
@media (max-width: 640px) {
  .sol-base__list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 18px; font-size: 0.9375rem; }
  .sol-base__list li:not(:last-child)::after { display: none; }
}

/* ---------- Chapter (그룹 도입부 · 간결한 구분 띠) -------------------------------- */
.sol-chapter { position: relative; overflow: hidden; padding: clamp(72px, 8vw, 120px) 0 clamp(32px, 4vw, 56px); }
main > .sol-chapter[data-theme="light"] { background-color: var(--paper-2); background-image: radial-gradient(70% 90% at 88% 0%, rgba(62, 154, 134, 0.08), transparent 62%); }
main > .sol-chapter[data-theme="dark"] { background-color: var(--night-2); background-image: radial-gradient(70% 90% at 88% 0%, rgba(82, 198, 174, 0.09), transparent 62%), radial-gradient(50% 70% at 100% 100%, rgba(122, 155, 255, 0.07), transparent 70%); }
.sol-chapter__inner { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(16px, 2vw, 32px); }
.sol-chapter__body { grid-column: 1 / span 8; display: grid; gap: 22px; align-content: end; }
.sol-chapter__title { font-size: clamp(3rem, 1.1rem + 5.4vw, 6.5rem); line-height: 1; letter-spacing: -0.052em; font-weight: 700; }
.sol-chapter__lead { max-width: 34em; font-size: var(--fs-lead); line-height: 1.66; color: var(--fg-2); letter-spacing: -0.016em; text-wrap: balance; }
@media (max-width: 960px) { .sol-chapter__body { grid-column: 1 / -1; } }

/* ---------- Split rows inside solutions ------------------------------------ */
.sol-row { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(16px, 2vw, 32px); row-gap: 28px; align-items: center; }
.sol-row + .sol-row { margin-top: clamp(72px, 8vw, 128px); }
.sol-row__text { display: grid; gap: 16px; align-content: center; }
.sol-row__title { font-size: clamp(1.25rem, 1.05rem + 0.8vw, 1.75rem); line-height: 1.25; letter-spacing: -0.03em; font-weight: 650; }
.sol-row__desc { color: var(--fg-2); line-height: 1.72; max-width: 32em; }
@media (min-width: 961px) {
  .sol-row--vision .sol-row__media { grid-column: 1 / span 6; }
  .sol-row--vision .sol-row__text { grid-column: 9 / span 4; }
  .sol-row--pdm .sol-row__text { grid-column: 1 / span 4; }
  .sol-row--pdm .sol-row__media { grid-column: 5 / span 8; }
}
@media (max-width: 960px) {
  .sol-row__media, .sol-row__text { grid-column: 1 / -1; }
  .sol-row--pdm .sol-row__text { order: -1; }
}

/* 관련 R&D · 수행 실적 */
.sol-record { margin-top: clamp(72px, 8vw, 128px); display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(16px, 2vw, 32px); row-gap: 40px; }
.sol-record__col { display: grid; gap: 14px; align-content: start; }
.sol-record__col:first-child { grid-column: 1 / span 6; }
.sol-record__col:last-child { grid-column: 9 / span 4; }
.sol-record__list { list-style: none; margin: 0; padding: 0; display: grid; }
.sol-record__list li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 16px; align-items: baseline; padding: 14px 0; border-bottom: 1px solid var(--line-c); font-size: 0.9375rem; line-height: 1.5; color: var(--fg); }
.sol-record__year { font-family: var(--font-mono); font-size: 0.75rem; color: var(--fg-3); white-space: nowrap; }
@media (max-width: 960px) { .sol-record__col:first-child, .sol-record__col:last-child { grid-column: 1 / -1; } }

/* ---------- MCT: 공구 예지보전 + 품질 검사 루프 ------------------------------ */
.sol-loop { position: relative; margin-bottom: clamp(56px, 6vw, 96px); padding: clamp(22px, 2.6vw, 36px) clamp(20px, 2.6vw, 36px) clamp(18px, 2vw, 28px); border-radius: var(--radius-l); border: 1px solid var(--line-c); background: radial-gradient(90% 140% at 50% 120%, color-mix(in oklab, var(--accent) 10%, transparent), transparent 60%), color-mix(in oklab, var(--fg) 2.5%, transparent); }
.sol-loop__title { margin-bottom: 20px; font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-2); }
.sol-loop__steps { --loop-gap: clamp(28px, 3.2vw, 48px); list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--loop-gap); }
.sol-loop__step { position: relative; display: grid; gap: 8px; align-content: start; padding: 20px 20px 22px; border-radius: 14px; background: var(--card); border: 1px solid var(--line-c); }
.sol-loop__step--key { border-color: color-mix(in oklab, var(--accent) 42%, transparent); background: color-mix(in oklab, var(--accent) 9%, var(--card)); }
.sol-loop__idx { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; color: var(--fg-2); }
.sol-loop__step--key .sol-loop__idx { color: var(--accent); }
.sol-loop__step strong { font-size: 1.125rem; font-weight: 650; letter-spacing: -0.024em; line-height: 1.35; }
.sol-loop__step > span:last-child { font-size: 0.875rem; line-height: 1.55; color: var(--fg-2); }
/* 단계 사이 연결선 + 화살촉 (정적) */
.sol-loop__step:not(:last-child)::after { content: ""; position: absolute; top: 50%; left: 100%; width: var(--loop-gap); height: 1px; background: var(--line-c2); }
.sol-loop__step:not(:last-child)::before { content: ""; position: absolute; z-index: 1; top: calc(50% - 3.5px); left: calc(100% + var(--loop-gap) - 8px); width: 7px; height: 7px; border-top: 1.4px solid var(--fg-3); border-right: 1.4px solid var(--fg-3); transform: rotate(45deg); }
.sol-loop__back { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: var(--loop-gap); --loop-gap: clamp(28px, 3.2vw, 48px); }
.sol-loop__arc { grid-column: 2 / span 2; width: 100%; height: 56px; overflow: visible; }
.sol-loop__arc path { fill: none; stroke: var(--accent); stroke-width: 1.4; vector-effect: non-scaling-stroke; }
.sol-loop__arc path:first-child { stroke-dasharray: 5 6; animation: sol-dash 1.6s linear infinite; }
.sol-loop__arc .sol-loop__head { stroke-linecap: round; stroke-linejoin: round; }
@keyframes sol-dash { to { stroke-dashoffset: 22; } }
.sol-loop__back-label { grid-column: 2 / span 2; justify-self: center; margin-top: -2px; display: inline-flex; align-items: center; flex-wrap: wrap; justify-content: center; gap: 10px; text-align: center; font-size: 0.875rem; line-height: 1.5; color: var(--fg-2); }
.sol-loop__back-label span { display: inline-flex; align-items: center; height: 24px; padding: 0 10px; border-radius: 999px; background: color-mix(in oklab, var(--accent) 16%, transparent); border: 1px solid color-mix(in oklab, var(--accent) 45%, transparent); color: var(--fg); font-size: 0.75rem; font-weight: 600; }
@media (max-width: 900px) {
  .sol-loop__steps { grid-template-columns: 1fr; --loop-gap: 26px; }
  .sol-loop__step:not(:last-child)::after { top: 100%; left: 32px; width: 1px; height: var(--loop-gap); }
  .sol-loop__step:not(:last-child)::before { top: calc(100% + var(--loop-gap) - 8px); left: 29px; transform: rotate(135deg); }
  .sol-loop__back { display: block; margin-top: 18px; }
  .sol-loop__arc { display: none; }
  .sol-loop__back-label { display: flex; justify-content: flex-start; text-align: left; }
}

/* 두 화면 + 설명 — 두 화면을 같은 비율(672:289)로 맞춥니다 */
.sol-duo .frame { margin-bottom: 26px; }
.frame__media.sol-duo__media { aspect-ratio: 672 / 289; overflow: hidden; }
.frame__media.sol-duo__media img { height: auto; }
.sol-duo__title { margin-bottom: 14px; font-size: clamp(1.0625rem, 1rem + 0.25vw, 1.1875rem); font-weight: 650; letter-spacing: -0.02em; line-height: 1.4; }

/* ---------- 공구 수명: 탭 ------------------------------------------------- */
.sol-tabs__head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px 32px; margin-bottom: 24px; }
.sol-tabs__intro { max-width: 34em; font-size: var(--fs-sm); line-height: 1.6; color: var(--fg-2); }
.sol-tabs__panel:not([hidden]) { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(16px, 2vw, 32px); row-gap: 26px; align-items: center; }
.sol-tabs__panel > .frame { grid-column: 1 / span 7; }
.sol-tabs__text { grid-column: 9 / span 4; }
@media (max-width: 960px) { .sol-tabs__panel > .frame, .sol-tabs__text { grid-column: 1 / -1; } }

/* ---------- 열화상 AI (개념도) --------------------------------------------- */
.sol-thermal-split { align-items: center; margin-bottom: clamp(56px, 6vw, 96px); }
@media (min-width: 961px) {
  .sol-thermal-split .split__a { grid-column: 1 / span 6; }
  .sol-thermal-split .split__b { grid-column: 8 / span 5; }
}
.sol-thermal { margin: 0; }
.sol-thermal__stage { position: relative; overflow: hidden; border-radius: var(--radius-l); border: 1px solid var(--line-c); padding: clamp(14px, 2vw, 26px); background: radial-gradient(60% 46% at 50% 22%, rgba(255, 122, 40, 0.16), transparent 72%), linear-gradient(180deg, var(--night-3), var(--night-2)); }
.sol-thermal__svg { width: 100%; height: auto; overflow: visible; }
.sol-thermal__svg text { font-weight: 500; }
.sol-thermal__cap { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 22px; margin-top: 14px; }
.sol-legend { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 0.8125rem; color: var(--fg-2); }
.sol-legend li { display: inline-flex; align-items: center; gap: 8px; }
.sol-legend__line { display: inline-block; width: 18px; height: 2px; border-radius: 2px; background: var(--fg); }
.sol-legend__line--dash { background: repeating-linear-gradient(90deg, #ff9b32 0 5px, transparent 5px 9px); }
.sol-legend__band { display: inline-block; width: 16px; height: 10px; background: rgba(255, 255, 255, 0.1); border-top: 1px solid rgba(255, 255, 255, 0.34); border-bottom: 1px solid rgba(255, 255, 255, 0.34); }
.sol-legend__alarm { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: #ff5a36; }
.sol-thermal__reveal { transform-box: fill-box; transform-origin: 0 50%; transition: transform 2.6s var(--ease-out) 0.35s; }
.js .sol-thermal:not(.is-in) .sol-thermal__reveal { transform: scaleX(0); }
.sol-thermal__alarm { transition: opacity 0.6s 2.1s; }
.js .sol-thermal:not(.is-in) .sol-thermal__alarm { opacity: 0; }
.sol-thermal__alarm-ring { transform-box: fill-box; transform-origin: center; opacity: 0; }
.sol-thermal.is-in .sol-thermal__alarm-ring { animation: sol-ping 2.2s var(--ease-out) 2.7s 4; }
@keyframes sol-ping { from { transform: scale(1); opacity: 0.9; } to { transform: scale(3.4); opacity: 0; } }
@media (max-width: 640px) {
  /* 좁은 화면: 도식 안 작은 글자는 숨기고(범례로 대체), 부위 라벨만 키웁니다 */
  .sol-thermal__pins text { font-size: 18px; }
  .sol-thermal__lbl { display: none; }
}

.sol-steps { list-style: none; margin: 0; padding: 0; display: grid; border-top: 1px solid var(--line-c2); }
.sol-steps li { display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 14px; padding: 22px 0; border-bottom: 1px solid var(--line-c); }
.sol-steps__idx { padding-top: 5px; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.04em; color: var(--fg-3); }
.sol-steps strong { display: block; font-size: clamp(1.1875rem, 1rem + 0.55vw, 1.5rem); line-height: 1.3; font-weight: 650; letter-spacing: -0.028em; }
.sol-steps li div > span { display: block; margin-top: 6px; font-size: 0.9375rem; line-height: 1.55; color: var(--fg-2); }

.sol-panels { row-gap: 40px; }
.sol-panel { display: grid; gap: 12px; align-content: start; padding-top: 22px; border-top: 1px solid var(--line-c2); }
.sol-panel .sol-duo__title { margin-bottom: 4px; }

/* ---------- 디지털 트윈 ---------------------------------------------------- */
.sol-scale-wrap { margin-bottom: clamp(72px, 8vw, 128px); }
.sol-scale__head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 24px; margin-bottom: 18px; }
.sol-scale__hint { font-size: 0.875rem; color: var(--fg-3); }
.sol-scale__hint--touch { display: none; }
.sol-scale { list-style: none; margin: 0; padding: 0; display: flex; gap: 12px; height: clamp(250px, 22vw, 316px); }
.sol-scale__item { position: relative; isolation: isolate; flex: 1 1 0; min-width: 0; overflow: hidden; border-radius: 16px; background: #0c111b; border: 1px solid var(--line-c); transition: flex-grow 0.9s var(--ease-out), box-shadow 0.6s; }
.sol-scale__item.is-active { flex-grow: 2.2; box-shadow: var(--shadow-frame); }
.sol-scale__item img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; transition: filter 0.7s var(--ease-out), transform 1.4s var(--ease-out); }
.sol-scale__item:not(.is-active) img { filter: saturate(0.55) brightness(0.62); transform: scale(1.04); }
.sol-scale__btn { position: absolute; inset: 0; z-index: 3; width: 100%; height: 100%; border-radius: inherit; cursor: pointer; }
.sol-scale__item.is-active .sol-scale__btn { cursor: default; }
.sol-scale__btn:focus-visible { outline-offset: -4px; }
.sol-scale__cap { position: absolute; z-index: 2; left: 0; right: 0; bottom: 0; display: grid; gap: 3px; padding: 56px 18px 16px; color: #fff; background: linear-gradient(0deg, rgba(5, 7, 12, 0.9), rgba(5, 7, 12, 0)); pointer-events: none; }
.sol-scale__idx { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; color: rgba(236, 238, 242, 0.72); }
.sol-scale__cap strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 1rem; font-weight: 650; letter-spacing: -0.02em; }
.sol-scale__cap span:last-child { font-size: 0.8125rem; color: rgba(236, 238, 242, 0.78); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sol-scale__notes { display: grid; gap: 6px; margin-top: 16px; }
.sol-scale__notes strong { margin-right: 8px; }
.sol-scale__notes a { color: var(--fg-2); text-decoration: underline; text-decoration-color: var(--line-c2); text-underline-offset: 2px; }
.sol-scale__notes a:hover { color: var(--fg); text-decoration-color: currentColor; }
@media (max-width: 760px) {
  .sol-scale__hint--fine { display: none; }
  .sol-scale__hint--touch { display: inline; }
  ul.sol-scale { height: auto; margin-inline: calc(var(--gutter) * -1); padding: 0 var(--gutter) 4px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
  .sol-scale::-webkit-scrollbar { display: none; }
  .sol-scale__item, .sol-scale__item.is-active { flex: 0 0 84%; aspect-ratio: 555 / 317; scroll-snap-align: center; box-shadow: none; }
  .sol-scale__item:not(.is-active) img { filter: none; transform: none; }
  .sol-scale__btn { pointer-events: none; }
}

/* 하위 실증 블록 (#process-twin · #hospital-twin) */
.sol-sub { scroll-margin-top: calc(var(--header-h) + 62px); padding-top: clamp(64px, 7vw, 112px); border-top: 1px solid var(--line-c2); }
.sol-sub + .sol-sub { margin-top: clamp(96px, 11vw, 176px); }
.sol-sub__head { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(16px, 2vw, 32px); row-gap: 28px; align-items: end; margin-bottom: clamp(40px, 5vw, 72px); }
.sol-sub__title { grid-column: 1 / span 7; display: grid; gap: 20px; }
.sol-sub__name { font-size: clamp(1.625rem, 1.1rem + 1.9vw, 2.75rem); line-height: 1.12; letter-spacing: -0.04em; font-weight: 650; text-wrap: balance; }
.sol-sub__points, .sol-role { grid-column: 9 / span 4; }
@media (max-width: 960px) { .sol-sub__title, .sol-sub__points, .sol-role { grid-column: 1 / -1; } }

.sol-pipe-split { align-items: start; }
@media (min-width: 961px) {
  .sol-pipe-split .split__a { grid-column: 1 / span 4; align-self: stretch; }
  .sol-pipe-split .split__b { grid-column: 6 / span 7; }
}
.sol-pipe__title { margin-bottom: 14px; font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); }
.sol-pipe { position: relative; list-style: none; margin: 0; padding: 0; display: grid; }
.sol-pipe::before { content: ""; position: absolute; left: 15px; top: 30px; bottom: 34px; width: 1px; background: var(--line-c2); }
.sol-pipe__stage { position: relative; display: grid; grid-template-columns: 32px minmax(0, 1fr); gap: 18px; padding: 14px 0 22px; }
.sol-pipe__idx { position: relative; z-index: 1; width: 31px; height: 31px; margin-top: 1px; border-radius: 50%; display: grid; place-items: center; background: var(--bg); border: 1px solid var(--line-c2); font-family: var(--font-mono); font-size: 0.6875rem; color: var(--fg-2); }
.sol-pipe__stage strong { display: block; font-size: clamp(1.125rem, 1rem + 0.45vw, 1.375rem); line-height: 1.25; font-weight: 650; letter-spacing: -0.03em; }
.sol-pipe__stage div > span { display: block; margin-top: 6px; font-size: 0.9375rem; line-height: 1.55; color: var(--fg-2); }
.sol-pipe__media { display: grid; gap: clamp(48px, 5vw, 80px); }
.sol-shot { display: grid; gap: 22px; }
.sol-shot__text { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.5fr); gap: 20px; align-items: start; }
.sol-shot__title { font-size: clamp(1.0625rem, 1rem + 0.25vw, 1.1875rem); line-height: 1.4; font-weight: 650; letter-spacing: -0.02em; }
@media (max-width: 640px) { .sol-shot__text { grid-template-columns: 1fr; gap: 12px; } }

/* 수행 범위 강조 */
.sol-role { display: grid; gap: 6px; padding: 22px 24px; border-radius: var(--radius-m); border: 1px solid color-mix(in oklab, var(--accent) 40%, transparent); background: color-mix(in oklab, var(--accent) 6%, var(--card)); }
.sol-role__label { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); }
.sol-role__value { font-size: clamp(1.25rem, 1.05rem + 0.6vw, 1.5rem); line-height: 1.3; font-weight: 650; letter-spacing: -0.03em; }
.sol-role__note { margin-top: 4px; font-size: 0.8125rem; line-height: 1.55; color: var(--fg-2); }

.sol-hosp-row { align-items: center; }
@media (min-width: 961px) {
  .sol-hosp-row .split__a { grid-column: 1 / span 7; }
  .sol-hosp-row .split__b { grid-column: 9 / span 4; }
  .sol-hosp-row--safety .split__a { grid-column: 1 / span 5; }
  .sol-hosp-row--safety .split__b { grid-column: 6 / span 7; }
}
.sol-hosp__text { display: grid; gap: 12px; }
.sol-svc { margin: clamp(56px, 6vw, 96px) 0; display: grid; gap: 22px; }
.sol-svc__head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 10px 32px; }
.sol-svc__note { max-width: 44em; font-size: 0.875rem; line-height: 1.6; color: var(--fg-2); }
.sol-svc__grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line-c2); }
.sol-svc__grid li { display: grid; gap: 8px; align-content: start; padding: 22px 20px 24px 0; border-bottom: 1px solid var(--line-c); }
.sol-svc__grid li + li { padding-left: 20px; border-left: 1px solid var(--line-c); }
.sol-svc__idx { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; color: var(--fg-3); }
.sol-svc__grid strong { font-size: 1.1875rem; line-height: 1.35; font-weight: 650; letter-spacing: -0.024em; }
.sol-svc__grid li > span:last-child { font-size: 0.9375rem; line-height: 1.55; color: var(--fg-2); }
@media (max-width: 960px) {
  .sol-svc__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sol-svc__grid li:nth-child(3) { padding-left: 0; border-left: 0; }
}
@media (max-width: 520px) {
  .sol-svc__grid { grid-template-columns: 1fr; }
  .sol-svc__grid li + li { padding-left: 0; border-left: 0; }
}
.sol-seven { display: grid; gap: 16px; align-content: start; }
.sol-seven__title { display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 6px; row-gap: 10px; font-size: var(--fs-h4); font-weight: 650; letter-spacing: -0.024em; }
.sol-seven__num { font-size: clamp(3.5rem, 2.2rem + 3.4vw, 5.75rem); line-height: 0.9; font-weight: 600; letter-spacing: -0.055em; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; -webkit-text-fill-color: transparent; padding-right: 4px; }
.sol-seven__scope { align-self: baseline; margin-left: 10px; display: inline-flex; align-items: center; height: 26px; padding: 0 11px; border-radius: 999px; border: 1px solid var(--line-c2); background: var(--card); font-size: 0.75rem; font-weight: 600; letter-spacing: -0.005em; color: var(--fg-2); white-space: nowrap; }
.sol-seven__group { display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 12px; align-items: start; padding-top: 14px; border-top: 1px solid var(--line-c); }
.sol-seven__label { padding-top: 7px; font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; color: var(--fg-3); }
.sol-seven__chips { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.sol-seven__chips li { padding: 6px 12px; border-radius: 999px; background: var(--card); border: 1px solid var(--line-c); font-size: 0.875rem; font-weight: 560; letter-spacing: -0.012em; }
.sol-seven__group:first-of-type .sol-seven__chips li { border-color: color-mix(in oklab, var(--accent) 38%, transparent); }
.sol-seven__foot { color: var(--fg-3); }

/* ---------- MES ---------------------------------------------------------- */
.sol-mes { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); grid-template-rows: auto 1fr; column-gap: clamp(16px, 2vw, 32px); row-gap: clamp(32px, 3.4vw, 48px); align-items: start; }
.sol-mes__monitor { grid-column: 1 / span 6; grid-row: 1; }
.sol-mes__stat { grid-column: 1 / span 6; grid-row: 2; align-self: end; display: grid; grid-template-columns: auto minmax(0, 1fr); column-gap: clamp(20px, 3vw, 40px); row-gap: 12px; align-items: end; padding-top: 20px; border-top: 1px solid var(--line-c2); }
.sol-mes__stat .stat__label { grid-column: 1 / -1; }
.sol-mes__stat .source-note { max-width: 26em; }
.sol-mes__stat .link-arrow { grid-column: 1 / -1; justify-self: start; margin-top: 4px; }
.sol-mes__admin { grid-column: 7 / span 6; grid-row: 1 / span 2; }
/* 표(0 값) 아래를 잘라 상단 추이 · 가동률만 보여 줍니다 — TODO: 실데이터 화면으로 교체 */
.frame__media.sol-mes__stage { aspect-ratio: 549 / 152; }
.sol-mes__num { display: flex; align-items: baseline; gap: 6px; font-size: clamp(4rem, 2.4rem + 4.4vw, 7rem); line-height: 0.9; font-weight: 600; letter-spacing: -0.055em; }
.sol-mes__num small { font-size: 1.125rem; font-weight: 600; letter-spacing: -0.01em; color: var(--fg-2); }
@media (max-width: 960px) {
  .sol-mes { grid-template-rows: none; }
  .sol-mes__monitor, .sol-mes__admin, .sol-mes__stat { grid-column: 1 / -1; grid-row: auto; }
}
@media (max-width: 520px) {
  .sol-mes__stat { grid-template-columns: 1fr; }
}

.sol-refs { margin-top: clamp(64px, 7vw, 112px); display: grid; gap: 18px; }
.sol-refs__list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: clamp(24px, 4vw, 64px); }
.sol-refs__list li { display: grid; grid-template-columns: minmax(120px, 36%) minmax(0, 1fr); gap: 16px; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--line-c); }
.sol-refs__list strong { font-size: 1rem; font-weight: 650; letter-spacing: -0.02em; line-height: 1.45; }
.sol-refs__list span { font-size: var(--fs-sm); line-height: 1.55; color: var(--fg-2); }
.sol-refs .source-note { margin-top: 4px; }
@media (max-width: 760px) {
  .sol-refs__list { grid-template-columns: 1fr; }
  .sol-refs__list li { grid-template-columns: 1fr; gap: 4px; }
}

/* ---------- SRM 연계 구성도 -------------------------------------------------- */
.sol-srm { display: grid; grid-template-columns: minmax(0, 3fr) 52px minmax(0, 4.3fr) 52px minmax(0, 3.1fr); grid-template-rows: repeat(3, auto); row-gap: 12px; align-items: center; }
.sol-srm__label { margin-bottom: 12px; font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-2); }
.sol-srm__partner { grid-column: 1; grid-row: 1 / 4; padding: 20px; border-radius: 18px; background: var(--card); border: 1px solid var(--line-c2); }
.sol-srm__cards { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.sol-srm__cards li { display: grid; gap: 4px; padding: 13px 14px; border-radius: 12px; background: color-mix(in oklab, var(--fg) 4.5%, transparent); }
.sol-srm__cards strong { font-size: 0.9375rem; font-weight: 650; letter-spacing: -0.015em; color: var(--accent); }
.sol-srm__cards span { font-size: 0.8125rem; line-height: 1.5; color: var(--fg-2); }
.sol-srm__core { grid-column: 3; grid-row: 1 / 4; padding: 20px; border-radius: 18px; border: 1px solid color-mix(in oklab, var(--accent) 42%, transparent); background: radial-gradient(56% 50% at 50% 52%, color-mix(in oklab, var(--accent) 18%, transparent), transparent 72%), var(--card); }
.sol-srm__ring { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); grid-auto-rows: minmax(56px, auto); gap: 8px; }
.sol-srm__ring li { display: grid; place-items: center; padding: 8px 6px; border-radius: 12px; border: 1px solid var(--line-c); background: color-mix(in oklab, var(--fg) 4%, transparent); text-align: center; font-size: 0.8125rem; font-weight: 600; line-height: 1.3; letter-spacing: -0.012em; transition: border-color 0.3s, background-color 0.3s; }
.sol-srm__ring li:hover { border-color: var(--line-c2); background: color-mix(in oklab, var(--fg) 8%, transparent); }
.sol-srm__ring li.sol-srm__hub { grid-column: 2 / 4; grid-row: 2 / 4; padding: 6px; border: 0; background: none; }
.sol-srm__ring li.sol-srm__hub:hover { background: none; }
.sol-srm__hub span { position: relative; display: grid; place-items: center; height: 100%; max-height: 124px; aspect-ratio: 1; border-radius: 50%; border: 1px solid color-mix(in oklab, var(--accent) 62%, transparent); background: radial-gradient(circle at 50% 38%, color-mix(in oklab, var(--accent) 34%, transparent), color-mix(in oklab, var(--accent) 8%, transparent) 70%); box-shadow: 0 0 40px -8px color-mix(in oklab, var(--accent) 55%, transparent); font-size: clamp(1.5rem, 1.1rem + 1vw, 2.125rem); font-weight: 700; letter-spacing: -0.045em; color: var(--fg); }
.sol-srm__hub span::before { content: ""; position: absolute; inset: -7px; border-radius: 50%; border: 1px dashed color-mix(in oklab, var(--accent) 45%, transparent); }
.sol-srm__sys { grid-column: 5; padding: 16px 16px 14px; border-radius: 16px; background: var(--card); border: 1px solid var(--line-c2); }
.sol-srm__sys--1 { grid-row: 1; } .sol-srm__sys--2 { grid-row: 2; } .sol-srm__sys--3 { grid-row: 3; }
.sol-srm__sys .sol-srm__label { margin-bottom: 10px; color: var(--fg); font-weight: 500; }
.sol-srm__sys ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
.sol-srm__sys li { padding: 7px 8px; border-radius: 8px; background: color-mix(in oklab, var(--fg) 4.5%, transparent); text-align: center; font-size: 0.8125rem; line-height: 1.35; color: var(--fg-2); }
.sol-srm__wire { position: relative; align-self: center; height: 1px; margin: 0 6px; background: var(--line-c2); }
.sol-srm__wire--a { grid-column: 2; grid-row: 1 / 4; }
.sol-srm__wire--b1 { grid-column: 4; grid-row: 1; } .sol-srm__wire--b2 { grid-column: 4; grid-row: 2; } .sol-srm__wire--b3 { grid-column: 4; grid-row: 3; }
.sol-srm__wire::before, .sol-srm__wire::after { content: ""; position: absolute; top: -3.5px; width: 7px; height: 7px; border-top: 1.4px solid var(--fg-3); border-right: 1.4px solid var(--fg-3); }
.sol-srm__wire::before { left: -1px; transform: rotate(-135deg); }
.sol-srm__wire::after { right: -1px; transform: rotate(45deg); }
.sol-srm__wire i { position: absolute; top: -3px; left: 6px; width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 10px var(--accent-2); animation: sol-shuttle 2.8s var(--ease-in-out) infinite alternate; }
.sol-srm__wire--b2 i { animation-delay: -0.9s; } .sol-srm__wire--b3 i { animation-delay: -1.8s; }
@keyframes sol-shuttle { from { left: 6px; } to { left: calc(100% - 13px); } }
.sol-srm__foot { display: flex; align-items: center; gap: 12px; margin-top: 18px; font-size: 0.8125rem; color: var(--fg-3); }
.sol-srm__legend { position: relative; width: 34px; height: 1px; flex: none; background: var(--line-c2); }
.sol-srm__legend i { position: absolute; top: -3px; left: 12px; width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); }
.sol-srm__shots { margin-top: clamp(56px, 6vw, 96px); }
@media (max-width: 1080px) {
  .sol-srm { grid-template-columns: 1fr; grid-template-rows: none; row-gap: 0; }
  .sol-srm > * { grid-column: 1 !important; grid-row: auto !important; }
  .sol-srm__wire { justify-self: center; width: 1px; height: 44px; margin: 6px 0; }
  .sol-srm__wire--b2, .sol-srm__wire--b3 { display: none; }
  .sol-srm__wire::before { top: -1px; left: -3.5px; transform: rotate(-45deg); }
  .sol-srm__wire::after { top: auto; bottom: -1px; right: auto; left: -3.5px; transform: rotate(135deg); }
  .sol-srm__wire i { left: -3px; top: 6px; animation-name: sol-shuttle-y; }
  .sol-srm__sys + .sol-srm__sys { margin-top: 10px; }
}
@keyframes sol-shuttle-y { from { top: 6px; } to { top: calc(100% - 13px); } }
@media (max-width: 560px) {
  .sol-srm__ring { grid-template-columns: repeat(3, minmax(0, 1fr)); grid-auto-rows: minmax(50px, auto); }
  .sol-srm__ring li.sol-srm__hub { grid-column: 1 / -1; grid-row: 1; }
  .sol-srm__hub span { max-height: 96px; }
}

/* ---------- DPP ---------------------------------------------------------- */
.sol-dpp__main { margin-bottom: clamp(48px, 5vw, 80px); }
.sol-dpp { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(16px, 2vw, 32px); row-gap: 44px; align-items: start; margin-bottom: clamp(72px, 8vw, 128px); }
.sol-dpp__spec { grid-column: 1 / span 6; display: grid; gap: 8px; }
.sol-dpp__json { grid-column: 8 / span 5; display: grid; gap: 0; position: sticky; top: calc(var(--header-h) + 80px); align-self: start; }
.sol-dpp__list { list-style: none; margin: 0; padding: 0; display: grid; }
.sol-dpp__list li { display: grid; grid-template-columns: minmax(120px, 36%) minmax(0, 1fr); gap: 20px; align-items: baseline; padding: 20px 0; border-bottom: 1px solid var(--line-c); }
.sol-dpp__big { font-size: clamp(2rem, 1.4rem + 1.8vw, 3rem); line-height: 1; font-weight: 620; letter-spacing: -0.05em; }
.sol-dpp__big small { margin-left: 2px; font-size: 0.9375rem; font-weight: 600; letter-spacing: -0.01em; color: var(--fg-2); }
.sol-dpp__big--code { display: flex; flex-wrap: wrap; gap: 4px; font-size: 1rem; letter-spacing: 0; }
.sol-dpp__big--code span { display: inline-flex; align-items: center; height: 24px; padding: 0 6px; border-radius: 6px; border: 1px solid var(--line-c2); font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.02em; color: var(--fg); background: var(--card); }
.sol-dpp__text { display: grid; gap: 5px; }
.sol-dpp__text strong { font-size: 1.0625rem; line-height: 1.4; font-weight: 650; letter-spacing: -0.02em; }
.sol-dpp__text span { font-size: var(--fs-sm); line-height: 1.6; color: var(--fg-2); }
@media (max-width: 960px) { .sol-dpp__spec, .sol-dpp__json { grid-column: 1 / -1; } .sol-dpp__json { position: static; } }
@media (max-width: 520px) { .sol-dpp__list li { grid-template-columns: 1fr; gap: 10px; } }

.sol-mobile { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(16px, 2vw, 32px); row-gap: 32px; align-items: center; padding: clamp(28px, 3.6vw, 56px); border-radius: var(--radius-l); background: var(--paper-2); border: 1px solid var(--line-c); }
.sol-mobile__text { grid-column: 1 / span 3; display: grid; gap: 12px; }
.sol-mobile__text .t-sm { color: var(--fg-2); }
.sol-phones { grid-column: 5 / span 8; list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(12px, 1.4vw, 20px); align-items: start; }
.sol-phone { display: grid; gap: 12px; }
.sol-phone:nth-child(even) { margin-top: 36px; }
/* 짧은 화면(이력 · 안전 정보)도 빈칸이 크지 않도록 같은 비율로 맞추고, 긴 화면은 아래를 자릅니다 */
.sol-phone__screen { aspect-ratio: 345 / 460; overflow: hidden; border-radius: 22px; background: #fff; border: 1px solid var(--line-c2); box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset, 0 28px 50px -30px rgba(10, 20, 40, 0.4); }
.sol-phone__screen img { width: 100%; height: auto; }
.sol-phone__cap { text-align: center; font-size: 0.8125rem; font-weight: 600; color: var(--fg-2); }
.sol-phones:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 12px; }
@media (max-width: 1080px) {
  .sol-mobile__text { grid-column: 1 / -1; }
  .sol-phones { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .sol-mobile { padding: 24px 0 24px 20px; }
  .sol-mobile__text { padding-right: 20px; }
  ul.sol-phones { grid-template-columns: repeat(4, 58%); overflow-x: auto; scroll-snap-type: x mandatory; padding-right: 20px; scrollbar-width: none; }
  .sol-phones::-webkit-scrollbar { display: none; }
  .sol-phone { scroll-snap-align: start; }
  .sol-phone:nth-child(even) { margin-top: 0; }
}

/* ---------- IoT Gateway (어두운 면 위 제품 카드) ------------------------------ */
@media (min-width: 961px) {
  .sol-iot .split__a { grid-column: 1 / span 5; align-self: stretch; }
  .sol-iot .split__b { grid-column: 8 / span 5; }
}
.sol-product { position: relative; margin: 0; padding: clamp(8px, 1.2vw, 16px); border-radius: var(--radius-l); background: #f1f0f5; box-shadow: var(--shadow-frame); }
.sol-product img { display: block; width: 100%; height: auto; }
.sol-product__cap { position: absolute; right: clamp(18px, 2.2vw, 30px); top: clamp(16px, 2vw, 26px); font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; color: #5f6673; }
@media (max-width: 640px) { .sol-product__cap { display: none; } }
.sol-spec { margin-top: 18px; grid-template-columns: minmax(130px, 34%) minmax(0, 1fr); }
.sol-spec dt, .sol-spec dd { padding: 13px 0; }
.sol-spec dd { font-variant-numeric: tabular-nums; }

/* 긴 사양표: 데스크톱은 항상 펼침, 좁은 화면(≤760px)은 접힘 (site.css .accordion 사용) */
.sol-fold.accordion { border-top: 0; }
.sol-fold .accordion__item { border-bottom: 0; }
.sol-fold__h { display: none; margin: 0; font-size: inherit; }
.sol-fold .accordion__panel { grid-template-rows: 1fr; }
@media (max-width: 760px) {
  .sol-fold.accordion { border-top: 1px solid var(--line-c); }
  .sol-fold .accordion__item { border-bottom: 1px solid var(--line-c); }
  .sol-fold__h { display: block; }
  .sol-fold__trigger { padding: 18px 0; font-size: 1rem; font-weight: 620; }
  .js .sol-fold .accordion__panel { grid-template-rows: 0fr; }
  .js .sol-fold .accordion__item.is-open .accordion__panel { grid-template-rows: 1fr; }
  .sol-fold__label { display: none; }
  .sol-fold .spec { margin: 0 0 20px; }
}

/* ---------- iMoldAsset --------------------------------------------------- */
/* 3대 핵심 기능 — 섹션 맨 위에서 큰 글자 + 헤어라인 카드로 강조 (색은 절제) */
.sol-core { margin: 0 0 clamp(48px, 5.4vw, 88px); }
.sol-core__label { margin-bottom: 16px; font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--sol-kick); }
ol.sol-core__list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(12px, 1.4vw, 20px); }
.sol-core__item { display: grid; grid-template-rows: auto auto 1fr; gap: 14px; padding: clamp(24px, 2.4vw, 36px) clamp(22px, 2.2vw, 32px) clamp(26px, 2.6vw, 38px); border-radius: var(--radius-m); background: var(--card); border: 1px solid var(--line-c2); }
.sol-core__idx { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em; color: var(--sol-kick); }
.sol-core__title { font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2.25rem); line-height: 1.15; letter-spacing: -0.04em; font-weight: 650; }
.sol-core__desc { font-size: clamp(0.9375rem, 0.9rem + 0.2vw, 1.0625rem); line-height: 1.6; color: var(--fg-2); text-wrap: pretty; }
@media (max-width: 860px) {
  ol.sol-core__list { grid-template-columns: 1fr; gap: 10px; }
  .sol-core__item { grid-template-columns: 34px minmax(0, 1fr); grid-template-rows: auto; column-gap: 12px; row-gap: 6px; padding: 20px 20px 22px; }
  .sol-core__idx { grid-row: 1 / span 2; padding-top: 0.55em; }
  .sol-core__title, .sol-core__desc { grid-column: 2; }
}

.sol-route { margin-bottom: 16px; padding: clamp(24px, 3vw, 44px); border-radius: var(--radius-l); background: var(--card); border: 1px solid var(--line-c); }
.sol-route__top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px 40px; margin-bottom: clamp(30px, 3.4vw, 52px); }
.sol-route__lead { max-width: 30em; font-size: clamp(1.125rem, 1rem + 0.45vw, 1.4375rem); line-height: 1.5; font-weight: 620; letter-spacing: -0.024em; }
.sol-route__path { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: auto minmax(24px, 1fr) auto minmax(24px, 1fr) auto minmax(24px, 1fr) auto; align-items: start; }
.sol-route__node { display: grid; justify-items: center; gap: 12px; min-width: 64px; }
.sol-route__pin { width: 14px; height: 14px; border-radius: 50%; background: var(--fg); box-shadow: 0 0 0 5px color-mix(in oklab, var(--fg) 9%, transparent); transition: background-color 0.5s, box-shadow 0.5s; }
.sol-route__node strong { font-size: 0.9375rem; font-weight: 650; letter-spacing: -0.015em; white-space: nowrap; }
.sol-route__gap { position: relative; height: 2px; margin: 6px 14px 0; background: repeating-linear-gradient(90deg, var(--line-c2) 0 6px, transparent 6px 12px); }
.sol-route__gap::after { content: ""; position: absolute; top: -3px; left: 0; width: 8px; height: 8px; border-radius: 50%; background: var(--c-blue); opacity: 0; }
.sol-route__q { position: absolute; left: 50%; top: 50%; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; transform: translate(-50%, -50%); background: var(--card); border: 1px dashed var(--line-c2); font-family: var(--font-mono); font-size: 0.75rem; color: var(--fg-3); transition: opacity 0.4s, transform 0.5s var(--ease-out); }
.sol-route[data-state="after"] .sol-route__gap { background: var(--grad); }
.sol-route[data-state="after"] .sol-route__gap::after { opacity: 1; animation: sol-route-dot 2.4s linear infinite; }
.sol-route[data-state="after"] .sol-route__gap:nth-of-type(4)::after { animation-delay: 0.8s; }
.sol-route[data-state="after"] .sol-route__gap:nth-of-type(6)::after { animation-delay: 1.6s; }
.sol-route[data-state="after"] .sol-route__q { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
.sol-route[data-state="after"] .sol-route__pin { background: var(--c-blue); box-shadow: 0 0 0 5px rgba(42, 85, 196, 0.16); }
@keyframes sol-route-dot { from { left: 0; } to { left: calc(100% - 8px); } }
.sol-route__notes { display: grid; margin-top: clamp(28px, 3vw, 44px); padding-top: 20px; border-top: 1px solid var(--line-c); }
.sol-route__note { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 12px; font-size: clamp(0.9375rem, 0.9rem + 0.2vw, 1.0625rem); line-height: 1.55; color: var(--fg); }
.sol-route__note + .sol-route__note { margin-top: 10px; }
.sol-route__tag { display: inline-flex; align-items: center; height: 24px; padding: 0 10px; border-radius: 999px; font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.06em; color: var(--fg-2); border: 1px solid var(--line-c2); }
.sol-route__note--after .sol-route__tag { color: #fff; background: var(--c-blue); border-color: var(--c-blue); }
.js .sol-route__note { grid-area: 1 / 1; transition: opacity 0.45s, transform 0.55s var(--ease-out); }
.js .sol-route__note + .sol-route__note { margin-top: 0; }
.js .sol-route[data-state="before"] .sol-route__note--after,
.js .sol-route[data-state="after"] .sol-route__note--before { opacity: 0; transform: translateY(8px); pointer-events: none; }
@media (max-width: 640px) {
  .sol-route__node strong { font-size: 0.8125rem; }
  .sol-route__node { min-width: 0; }
  .sol-route__gap { margin: 6px 6px 0; }
  .sol-route__q { width: 22px; height: 22px; font-size: 0.6875rem; }
}

ol.sol-arch { list-style: none; margin: 0 0 clamp(48px, 5vw, 80px); padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(28px, 3.4vw, 52px); }
.sol-arch { --arch-gap: clamp(28px, 3.4vw, 52px); }
.sol-arch__node { position: relative; display: grid; gap: 8px; align-content: start; padding: 22px 22px 24px; border-radius: var(--radius-m); background: var(--card); border: 1px solid var(--line-c); }
.sol-arch__node--accent { background: var(--ink); border-color: var(--ink); color: var(--fog); --fg: var(--fog); --fg-2: var(--fog-2); --fg-3: var(--fog-3); }
.sol-arch__kicker { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--sol-kick); }
.sol-arch__node--accent .sol-arch__kicker { color: var(--c-green-hi); }
.sol-arch__node strong { font-size: clamp(1.25rem, 1.05rem + 0.6vw, 1.5rem); line-height: 1.25; font-weight: 650; letter-spacing: -0.03em; }
.sol-arch__node > span:last-child { font-size: 0.9375rem; line-height: 1.55; color: var(--fg-2); }
/* 노드 사이 연결선 + 화살촉 (정적) */
.sol-arch__node:not(:last-child)::after { content: ""; position: absolute; top: 50%; left: 100%; width: var(--arch-gap); height: 1px; background: var(--line-c2); }
.sol-arch__node:not(:last-child)::before { content: ""; position: absolute; z-index: 1; top: calc(50% - 3.5px); left: calc(100% + var(--arch-gap) - 8px); width: 7px; height: 7px; border-top: 1.4px solid var(--fg-3); border-right: 1.4px solid var(--fg-3); transform: rotate(45deg); }
@media (max-width: 900px) {
  ol.sol-arch { grid-template-columns: 1fr; --arch-gap: 28px; }
  .sol-arch__node:not(:last-child)::after { top: 100%; left: 32px; width: 1px; height: var(--arch-gap); }
  .sol-arch__node:not(:last-child)::before { top: calc(100% + var(--arch-gap) - 8px); left: 29px; transform: rotate(135deg); }
}

.sol-map { margin: 0 0 clamp(56px, 6vw, 96px); }
.sol-map__cap { display: flex; flex-wrap: wrap; gap: 6px 12px; margin-top: 14px; font-size: var(--fs-sm); color: var(--fg-2); }
.sol-map__cap strong { color: var(--fg); font-weight: 650; }

.sol-imold { margin-top: clamp(80px, 9vw, 144px); display: grid; gap: 28px; }
.sol-imold__grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(16px, 2vw, 32px); row-gap: 40px; align-items: start; }
.sol-imold__device { grid-column: 1 / span 4; display: grid; grid-template-columns: minmax(0, 0.78fr) minmax(0, 1fr); gap: 10px; align-items: stretch; }
.sol-imold__spec { grid-column: 5 / span 4; display: grid; gap: 14px; }
.sol-imold__spec .sol-kicker { margin-bottom: 14px; }
.sol-imold__ops { grid-column: 9 / span 4; display: grid; gap: 14px; }
.sol-imold__fig { margin: 0; display: grid; grid-template-rows: 1fr auto; gap: 10px; padding: 14px 12px 12px; border-radius: var(--radius-m); background: var(--card); border: 1px solid var(--line-c); }
.sol-imold__fig img { width: 100%; height: 100%; max-height: 260px; object-fit: contain; }
.sol-imold__fig figcaption { font-size: 0.75rem; line-height: 1.4; color: var(--fg-3); text-align: center; }
.sol-ops { list-style: none; margin: 0; padding: 0; display: grid; border-top: 1px solid var(--line-c2); }
.sol-ops li { display: grid; grid-template-columns: 32px minmax(0, 1fr); gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--line-c); font-size: 0.9375rem; line-height: 1.55; }
.sol-ops li > span { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--ink); color: var(--fog); font-family: var(--font-mono); font-size: 0.6875rem; }
@media (max-width: 1080px) {
  .sol-imold__device { grid-column: 1 / -1; max-width: 560px; }
  .sol-imold__spec { grid-column: 1 / span 6; }
  .sol-imold__ops { grid-column: 7 / span 6; }
}
@media (max-width: 760px) {
  .sol-imold__spec, .sol-imold__ops { grid-column: 1 / -1; }
  .sol-imold__spec .sol-kicker { margin-bottom: 0; }
}

.sol-poc { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: clamp(16px, 2vw, 32px); row-gap: 32px; align-items: center; margin-top: clamp(40px, 4vw, 64px); }
.sol-poc__photos { grid-column: 1 / span 5; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.sol-poc__photos figure { margin: 0; overflow: hidden; border-radius: 10px; aspect-ratio: 238 / 318; background: var(--paper-2); }
.sol-poc__photos img { width: 100%; height: 100%; object-fit: cover; }
.sol-poc__photos .figure-cap { grid-column: 1 / -1; margin-top: 4px; }
.sol-poc__body { grid-column: 8 / span 5; display: grid; gap: 20px; }
.sol-poc__callout { background: radial-gradient(120% 120% at 100% 0%, rgba(42, 85, 196, 0.12), transparent 55%), var(--card); }
.sol-poc__callout p { font-size: clamp(1.25rem, 1.05rem + 0.7vw, 1.625rem); }
.sol-poc__callout footer { font-size: 0.9375rem; color: var(--fg); }
.sol-poc__refs { display: grid; gap: 6px; padding-top: 16px; border-top: 1px solid var(--line-c); font-size: var(--fs-sm); line-height: 1.6; color: var(--fg-2); }
@media (max-width: 960px) {
  .sol-poc__photos, .sol-poc__body { grid-column: 1 / -1; }
  .sol-poc__photos { max-width: 520px; }
}

/* ---------- Reduced motion ---------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .sol-srm__wire i, .sol-route__gap::after { display: none; }
  .sol-loop__arc path:first-child { animation: none; }
  .sol-thermal__alarm, .sol-thermal__reveal { transition: none; }
  .sol-thermal.is-in .sol-thermal__alarm-ring { animation: none; }
}