:root {
  --pt-ink: #15181b;
  --pt-ink-2: #1c2024;
  --pt-panel: #20252a;
  --pt-line: rgba(228, 234, 238, 0.12);
  --pt-line-2: rgba(228, 234, 238, 0.22);
  --pt-white: #eef2f4;
  --pt-mut: #8b949c;
  --pt-lime: #cdf53e;
  --pt-lime-d: #a9cf26;
  --pt-warn: #ff5a3c;
  --pt-paper: #e9ecee;
  --pt-paper-2: #dfe3e6;
  --pf: "Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --pm: "Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --pe: cubic-bezier(0.2, 0.7, 0.2, 1);
}

html, body { overflow-x: clip; }
body { font-family: var(--pf); color: var(--pt-white); background: var(--pt-ink); }
.pt { background: var(--pt-ink); }
.pt ::selection { background: var(--pt-lime); color: var(--pt-ink); }
.pt .container { width: min(1280px, calc(100% - 56px)); margin: 0 auto; }
.pt h1, .pt h2, .pt h3 { font-family: var(--pf); font-weight: 800; letter-spacing: -0.02em; line-height: 1.04; margin: 0; }
.pt em { font-style: normal; color: var(--pt-lime); }
.pt p { margin: 0; }
.pt img { max-width: 100%; display: block; }
.pt a { color: inherit; text-decoration: none; }

.pt .reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s var(--pe), transform 0.7s var(--pe); }
.pt .reveal.in { opacity: 1; transform: none; }

.pt .grid-rule { position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image: linear-gradient(var(--pt-line) 1px, transparent 1px), linear-gradient(90deg, var(--pt-line) 1px, transparent 1px);
  background-size: 56px 56px; mask-image: radial-gradient(120% 90% at 70% 0%, #000 30%, transparent 78%); }
.pt .grid-rule.light { background-image: linear-gradient(rgba(20, 24, 28, 0.07) 1px, transparent 1px), linear-gradient(90deg, rgba(20, 24, 28, 0.07) 1px, transparent 1px); mask-image: radial-gradient(120% 100% at 30% 0%, #000 35%, transparent 82%); }

.pt .klabel { display: inline-flex; align-items: center; gap: 11px; font-family: var(--pm); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--pt-lime-d); }
.pt .klabel::before { content: ""; width: 9px; height: 9px; background: var(--pt-lime); transform: rotate(45deg); }
.pt .klabel.ink { color: #5d6f49; }
.pt .klabel.ink::before { background: var(--pt-lime-d); }

.pt .shead { max-width: 700px; margin: 0 0 52px; position: relative; z-index: 1; }
.pt .shead .klabel { margin-bottom: 18px; }
.pt .shead h2 { font-size: clamp(1.9rem, 4vw, 3.1rem); margin-bottom: 14px; }
.pt .shead p { color: var(--pt-mut); font-size: 1.04rem; line-height: 1.6; }

.pt .btn { display: inline-flex; align-items: center; gap: 9px; cursor: pointer; font-family: var(--pf); font-weight: 700; font-size: 0.9rem; padding: 14px 24px; border: 0; background: var(--pt-lime); color: var(--pt-ink); clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%); transition: 0.25s var(--pe); }
.pt .btn svg { width: 17px; height: 17px; }
.pt .btn:hover { background: #fff; transform: translateY(-2px); }
.pt .btn.ghost { background: transparent; color: var(--pt-white); box-shadow: inset 0 0 0 1.5px var(--pt-line-2); clip-path: none; }
.pt .btn.ghost:hover { background: transparent; box-shadow: inset 0 0 0 1.5px var(--pt-lime); color: var(--pt-lime); }

.pt .nav { position: sticky; top: 0; z-index: 90; background: rgba(21, 24, 27, 0.86); backdrop-filter: saturate(160%) blur(14px); border-bottom: 1px solid var(--pt-line); }
.pt .nav-in { display: flex; align-items: center; gap: 20px; height: 70px; }
.pt .brand { display: inline-flex; align-items: center; flex: none; }
.pt .brand-logo { height: 22px; width: auto; }
.pt .nav-links { display: flex; align-items: center; gap: 30px; margin-left: auto; }
.pt .nav-links > a:not(.btn) { font-family: var(--pm); font-size: 0.78rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--pt-mut); transition: color 0.2s; }
.pt .nav-links > a:not(.btn):hover { color: var(--pt-white); }
.pt .nav-links .btn { padding: 11px 18px; }
.pt .burger { display: none; background: none; border: 0; color: var(--pt-white); cursor: pointer; padding: 6px; margin-left: auto; }
.pt .burger svg { width: 26px; height: 26px; }
.pt .nav-home { display: inline-flex; align-items: center; gap: 7px; padding: 8px 12px; border: 1px solid var(--pt-line); color: var(--pt-white); flex: none; font-family: var(--pm); font-size: 0.72rem; font-weight: 700; transition: 0.2s; }
.pt .nav-home:hover { border-color: var(--pt-lime); color: var(--pt-lime); }

.pt .hero { position: relative; padding-top: clamp(40px, 6vw, 76px); overflow: hidden; }
.pt .hero-in { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(32px, 5vw, 72px); align-items: center; padding-bottom: clamp(40px, 5vw, 64px); }
.pt .hero-sheet { display: inline-flex; align-items: center; gap: 14px; font-family: var(--pm); font-size: 0.72rem; letter-spacing: 0.1em; color: var(--pt-mut); text-transform: uppercase; margin-bottom: 24px; }
.pt .hero-sheet .reg { color: var(--pt-ink); background: var(--pt-lime); padding: 4px 9px; font-weight: 700; letter-spacing: 0.08em; }
.pt .hero-kor { font-family: var(--pm); font-size: 0.9rem; letter-spacing: 0.16em; color: var(--pt-mut); margin-bottom: 18px; }
.pt .hero h1 { font-size: clamp(2.5rem, 6vw, 4.9rem); letter-spacing: -0.035em; }
.pt .hero-lead { font-size: clamp(1.02rem, 1.5vw, 1.2rem); color: var(--pt-mut); max-width: 540px; line-height: 1.62; margin-top: 22px; }
.pt .hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.pt .hero-meta { display: flex; gap: 0; margin: 38px 0 0; border-top: 1px solid var(--pt-line); }
.pt .hero-meta > div { padding: 16px 26px 0 0; margin-right: 26px; border-right: 1px solid var(--pt-line); }
.pt .hero-meta > div:last-child { border-right: 0; margin-right: 0; }
.pt .hero-meta dt { font-family: var(--pm); font-size: 0.66rem; letter-spacing: 0.12em; color: var(--pt-mut); margin: 0 0 4px; }
.pt .hero-meta dd { margin: 0; font-family: var(--pm); font-size: 1.1rem; font-weight: 700; color: var(--pt-lime); }

.pt .hero-plate { position: relative; }
.pt .hero-fig { position: relative; margin: 0; border: 1px solid var(--pt-line-2); }
.pt .hero-fig img { width: 100%; aspect-ratio: 1 / 1.04; object-fit: cover; filter: contrast(1.03); }
.pt .hero-frame { position: absolute; inset: 0; pointer-events: none; }
.pt .hero-frame .cr { position: absolute; width: 16px; height: 16px; border: 1.5px solid var(--pt-lime); }
.pt .hero-frame .cr-tl { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.pt .hero-frame .cr-tr { top: -1px; right: -1px; border-left: 0; border-bottom: 0; }
.pt .hero-frame .cr-bl { bottom: -1px; left: -1px; border-right: 0; border-top: 0; }
.pt .hero-frame .cr-br { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }
.pt .hero-anno { position: absolute; display: inline-flex; align-items: center; gap: 8px; padding: 5px 10px 5px 6px; background: rgba(21, 24, 27, 0.92); border: 1px solid var(--pt-line-2); border-left: 2px solid var(--pt-lime); font-family: var(--pm); font-size: 0.66rem; letter-spacing: 0.03em; color: var(--pt-white); white-space: nowrap; backdrop-filter: blur(2px); }
.pt .hero-anno b { display: inline-grid; place-items: center; width: 17px; height: 17px; background: var(--pt-lime); color: var(--pt-ink); font-size: 0.6rem; }
.pt .hero-anno::before { content: ""; position: absolute; right: 100%; top: 50%; width: 18px; height: 1px; background: var(--pt-lime); }
.pt .hero-anno::after { content: ""; position: absolute; right: calc(100% + 18px); top: 50%; width: 6px; height: 6px; border-radius: 50%; background: var(--pt-lime); transform: translateY(-2.5px); }
.pt .hero-anno.an-top { top: 12%; left: 14%; }
.pt .hero-anno.an-mid { top: 46%; left: 28%; }
.pt .hero-anno.an-base { bottom: 14%; left: 18%; }

.pt .hero-stats { border-top: 1px solid var(--pt-line); border-bottom: 1px solid var(--pt-line); position: relative; z-index: 1; background: var(--pt-ink-2); }
.pt .hero-stats-in { display: grid; grid-template-columns: repeat(4, 1fr); }
.pt .hstat { padding: 26px; border-right: 1px solid var(--pt-line); }
.pt .hstat:last-child { border-right: 0; }
.pt .hstat strong { display: block; font-size: clamp(1.6rem, 2.6vw, 2.3rem); font-weight: 800; letter-spacing: -0.03em; color: var(--pt-white); line-height: 1; }
.pt .hstat span { font-family: var(--pm); font-size: 0.74rem; color: var(--pt-mut); display: block; margin-top: 8px; }

.pt .about { padding: clamp(64px, 9vw, 116px) 0; }
.pt .about-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(40px, 5vw, 80px); align-items: start; }
.pt .about-copy h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); margin: 16px 0 20px; max-width: 14ch; }
.pt .about-copy p { color: var(--pt-mut); line-height: 1.8; margin-bottom: 14px; max-width: 56ch; }
.pt .datasheet { border: 1px solid var(--pt-line-2); background: var(--pt-ink-2); }
.pt .ds-head { display: flex; align-items: center; gap: 10px; padding: 16px 20px; font-family: var(--pm); font-size: 0.74rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--pt-white); border-bottom: 1px solid var(--pt-line-2); }
.pt .ds-head i { width: 10px; height: 10px; background: var(--pt-lime); }
.pt .ds-row { display: grid; grid-template-columns: 34px 1fr; grid-template-rows: auto auto; gap: 2px 14px; padding: 16px 20px; border-bottom: 1px solid var(--pt-line); }
.pt .ds-row:last-child { border-bottom: 0; }
.pt .ds-no { grid-row: 1 / 3; align-self: center; font-family: var(--pm); font-size: 0.82rem; color: var(--pt-lime-d); }
.pt .ds-row dt { font-family: var(--pm); font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--pt-mut); margin: 0; }
.pt .ds-row dd { margin: 0; font-weight: 700; font-size: 0.98rem; color: var(--pt-white); }

.pt .systems { padding: clamp(56px, 8vw, 104px) 0; border-top: 1px solid var(--pt-line); background: var(--pt-ink-2); }
.pt .sys-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 1px solid var(--pt-line-2); }
.pt .sys { position: relative; padding: 24px 22px 26px; border-right: 1px solid var(--pt-line); transition: 0.3s var(--pe); }
.pt .sys:last-child { border-right: 0; }
.pt .sys:hover { background: var(--pt-ink); }
.pt .sys-top { display: flex; align-items: center; gap: 9px; margin-bottom: 18px; }
.pt .sys-no { display: grid; place-items: center; width: 26px; height: 26px; background: var(--pt-lime); color: var(--pt-ink); font-family: var(--pm); font-weight: 700; font-size: 0.82rem; flex: none; }
.pt .sys-zone { font-family: var(--pm); font-size: 0.66rem; letter-spacing: 0.14em; color: var(--pt-mut); }
.pt .sys-en { margin-left: auto; font-family: var(--pm); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.04em; color: var(--pt-lime-d); }
.pt .sys-thumb { aspect-ratio: 16 / 11; overflow: hidden; border: 1px solid var(--pt-line); margin-bottom: 18px; filter: contrast(1.04) saturate(1.02); transition: filter 0.35s var(--pe); }
.pt .sys:hover .sys-thumb { filter: contrast(1.06) brightness(1.04); }
.pt .sys-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pt .sys h3 { font-size: 1.12rem; margin-bottom: 10px; line-height: 1.2; }
.pt .sys p { color: var(--pt-mut); font-size: 0.88rem; line-height: 1.55; }
.pt .sys-points { list-style: none; margin: 16px 0 0; padding: 14px 0 0; border-top: 1px solid var(--pt-line); }
.pt .sys-points li { position: relative; padding-left: 17px; font-family: var(--pm); font-size: 0.72rem; color: var(--pt-white); line-height: 1.5; margin-bottom: 6px; }
.pt .sys-points li::before { content: ""; position: absolute; left: 0; top: 0.5em; width: 7px; height: 7px; background: var(--pt-lime); transform: rotate(45deg); }

.pt .section { position: relative; padding: clamp(64px, 9vw, 120px) 0; background: var(--pt-paper); color: var(--pt-ink); overflow: hidden; }
.pt .sec-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(40px, 5vw, 72px); align-items: center; }
.pt .sec-copy h2 { color: var(--pt-ink); font-size: clamp(1.7rem, 3vw, 2.5rem); margin: 16px 0; }
.pt .sec-copy p { color: #4a525a; line-height: 1.72; max-width: 46ch; }
.pt .sec-benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 30px; border-top: 1.5px solid var(--pt-ink); }
.pt .sec-ben { padding: 16px 16px 0 0; }
.pt .sec-ben strong { display: block; font-size: 1.5rem; font-weight: 800; letter-spacing: -0.03em; color: var(--pt-ink); }
.pt .sec-ben span { display: block; margin-top: 7px; font-size: 0.8rem; color: #5b636b; line-height: 1.5; }

.pt .sec-draw { position: relative; margin: 0; background: var(--pt-paper-2); border: 1.5px solid var(--pt-ink); padding: 30px 28px; }
.pt .sec-scale { position: absolute; top: 12px; right: 16px; font-family: var(--pm); font-size: 0.62rem; letter-spacing: 0.08em; color: #6a727a; }
.pt .strata { display: flex; flex-direction: column; gap: 0; }
.pt .layer { position: relative; display: grid; grid-template-columns: 64px 30px 1fr; align-items: center; gap: 16px; padding: 11px 0; border-bottom: 1px dashed rgba(20, 24, 28, 0.28); }
.pt .layer:first-child { border-top: 1px dashed rgba(20, 24, 28, 0.28); }
.pt .layer-bar { height: 16px; border: 1px solid var(--pt-ink); position: relative; overflow: hidden; }
.pt .layer-bar::after { content: ""; position: absolute; inset: 0; background-image: repeating-linear-gradient(45deg, var(--pt-ink) 0 2px, transparent 2px 6px); opacity: var(--barop, 0.5); }
.pt .lyr-07 .layer-bar { background: var(--pt-lime); }
.pt .lyr-07 .layer-bar::after { opacity: 0; }
.pt .lyr-06 .layer-bar { --barop: 0.8; }
.pt .lyr-05 .layer-bar { background: #fff; --barop: 1; }
.pt .lyr-04 .layer-bar { --barop: 0.6; }
.pt .lyr-03 .layer-bar { --barop: 0.4; }
.pt .lyr-02 .layer-bar { --barop: 0.25; }
.pt .lyr-01 .layer-bar { background: #c8ccce; --barop: 0.9; }
.pt .layer-no { font-family: var(--pm); font-size: 0.82rem; font-weight: 700; color: var(--pt-ink); }
.pt .layer-txt b { display: block; font-size: 0.92rem; color: var(--pt-ink); }
.pt .layer-txt span { font-family: var(--pm); font-size: 0.7rem; color: #5b636b; }

.pt .schedule { padding: clamp(64px, 9vw, 116px) 0; border-top: 1px solid var(--pt-line); }
.pt .sched-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.pt .sched { border: 1px solid var(--pt-line-2); background: var(--pt-ink-2); }
.pt .sched-head { display: flex; align-items: center; gap: 12px; padding: 16px 20px; border-bottom: 1px solid var(--pt-line-2); }
.pt .sched-tag { font-family: var(--pm); font-size: 0.72rem; font-weight: 700; color: var(--pt-ink); background: var(--pt-lime); padding: 4px 8px; }
.pt .sched-head h3 { font-size: 1.1rem; }
.pt .sched-table { width: 100%; border-collapse: collapse; }
.pt .sched-table thead th { text-align: left; font-family: var(--pm); font-size: 0.62rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--pt-mut); padding: 10px 20px; border-bottom: 1px solid var(--pt-line); }
.pt .sched-table tbody td { padding: 13px 20px; border-bottom: 1px solid var(--pt-line); vertical-align: top; font-size: 0.86rem; }
.pt .sched-table tbody tr:last-child td { border-bottom: 0; }
.pt .sched-table td:first-child { color: var(--pt-white); font-weight: 600; width: 38%; }
.pt .sched-table td:last-child { color: var(--pt-mut); font-family: var(--pm); font-size: 0.74rem; line-height: 1.5; }

.pt .aireka { padding: clamp(64px, 9vw, 116px) 0; border-top: 1px solid var(--pt-line); background: var(--pt-ink-2); }
.pt .aireka-grid { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: clamp(36px, 5vw, 64px); align-items: center; }
.pt .aireka-copy h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); margin: 16px 0; }
.pt .aireka-copy > p { color: var(--pt-mut); line-height: 1.7; max-width: 44ch; }
.pt .aireka-steps { list-style: none; margin: 28px 0 0; padding: 0; }
.pt .astep { display: grid; grid-template-columns: 40px 1fr; gap: 16px; padding: 15px 0; border-top: 1px solid var(--pt-line); }
.pt .astep-no { font-family: var(--pm); font-size: 1rem; font-weight: 700; color: var(--pt-lime-d); }
.pt .astep b { display: block; font-size: 0.98rem; color: var(--pt-white); margin-bottom: 3px; }
.pt .astep span { font-size: 0.84rem; color: var(--pt-mut); line-height: 1.5; }
.pt .aireka-ba { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pt .ba { margin: 0; border: 1px solid var(--pt-line-2); }
.pt .ba img { width: 100%; aspect-ratio: 5 / 4; object-fit: cover; }
.pt .ba figcaption { display: flex; align-items: center; gap: 8px; padding: 11px 14px; font-family: var(--pm); font-size: 0.7rem; letter-spacing: 0.03em; color: var(--pt-white); background: var(--pt-ink); border-top: 1px solid var(--pt-line-2); }
.pt .ba .dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.pt .ba .dot.warn { background: var(--pt-warn); }
.pt .ba .dot.ok { background: var(--pt-lime); }

.pt .projects { padding: clamp(64px, 9vw, 116px) 0; border-top: 1px solid var(--pt-line); }
.pt .proj-strip { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.pt .strip { margin: 0; position: relative; border: 1px solid var(--pt-line-2); overflow: hidden; }
.pt .strip img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; transition: transform 0.5s var(--pe); }
.pt .strip:hover img { transform: scale(1.04); }
.pt .strip figcaption { position: absolute; left: 0; bottom: 0; padding: 9px 14px; font-family: var(--pm); font-size: 0.72rem; color: var(--pt-white); background: linear-gradient(0deg, rgba(21, 24, 27, 0.92), transparent); width: 100%; }
.pt .proj-log { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--pt-line-2); }
.pt .plog { padding: 22px 18px; border-right: 1px solid var(--pt-line); }
.pt .plog:last-child { border-right: 0; }
.pt .plog-no { font-family: var(--pm); font-size: 0.72rem; color: var(--pt-lime-d); }
.pt .plog b { display: block; font-size: 0.96rem; margin: 12px 0 6px; line-height: 1.25; }
.pt .plog > span:last-child { font-size: 0.8rem; color: var(--pt-mut); line-height: 1.45; }

.pt .certs { padding: clamp(56px, 8vw, 100px) 0; border-top: 1px solid var(--pt-line); background: var(--pt-ink-2); }
.pt .stamp-row { display: flex; flex-wrap: wrap; gap: 12px; }
.pt .stamp { font-family: var(--pm); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.04em; color: var(--pt-white); padding: 12px 16px; border: 1px solid var(--pt-line-2); position: relative; transition: 0.25s var(--pe); }
.pt .stamp::before { content: ""; position: absolute; top: 5px; left: 5px; width: 6px; height: 6px; border-top: 1px solid var(--pt-lime); border-left: 1px solid var(--pt-lime); }
.pt .stamp:hover { border-color: var(--pt-lime); color: var(--pt-lime); }

.pt .docs { padding: clamp(56px, 8vw, 100px) 0; border-top: 1px solid var(--pt-line); }
.pt .doc-list { border-top: 1px solid var(--pt-line); }
.pt .doc-row { display: grid; grid-template-columns: auto 1fr auto auto; align-items: center; gap: 22px; padding: 22px 8px; border-bottom: 1px solid var(--pt-line); transition: 0.25s var(--pe); }
.pt .doc-row:hover { padding-left: 18px; background: var(--pt-ink-2); }
.pt .doc-no { font-family: var(--pm); font-size: 0.82rem; color: var(--pt-lime-d); }
.pt .doc-label { font-size: 1.04rem; font-weight: 700; }
.pt .doc-meta { font-family: var(--pm); font-size: 0.72rem; color: var(--pt-mut); }
.pt .doc-arr { width: 22px; height: 22px; color: var(--pt-white); transition: 0.25s var(--pe); }
.pt .doc-row:hover .doc-arr { color: var(--pt-lime); transform: translateX(5px); }

.pt .close { position: relative; padding: clamp(56px, 8vw, 100px) 0; overflow: hidden; }
.pt .close-card { position: relative; z-index: 1; border: 1px solid var(--pt-line-2); background: var(--pt-ink-2); padding: clamp(40px, 5vw, 72px) clamp(28px, 5vw, 64px); text-align: center; overflow: hidden; }
.pt .close-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--pt-lime); }
.pt .close-stamp { font-family: var(--pm); font-size: 0.74rem; letter-spacing: 0.18em; color: var(--pt-mut); }
.pt .close-card .klabel { justify-content: center; margin: 16px 0; }
.pt .close-card h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); margin-bottom: 14px; max-width: 22ch; margin-inline: auto; }
.pt .close-card p { color: var(--pt-mut); max-width: 600px; margin: 0 auto 28px; line-height: 1.65; }
.pt .foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--pt-line); color: var(--pt-mut); font-family: var(--pm); font-size: 0.76rem; }

@media (max-width: 1040px) {
  .pt .hero-in { grid-template-columns: 1fr; gap: 40px; }
  .pt .hero-plate { max-width: 520px; }
  .pt .hero-anno { display: none; }
  .pt .sys-grid { grid-template-columns: 1fr 1fr; }
  .pt .sys:nth-child(2n) { border-right: 0; }
  .pt .sys:nth-child(-n+2) { border-bottom: 1px solid var(--pt-line); }
  .pt .sec-grid, .pt .aireka-grid, .pt .about-grid { grid-template-columns: 1fr; }
  .pt .proj-log { grid-template-columns: 1fr 1fr 1fr; }
}
@media (max-width: 920px) {
  .pt .nav-links { position: fixed; inset: 70px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--pt-ink); border-bottom: 1px solid var(--pt-line); padding: 8px 28px 24px; margin-left: 0; transform: translateY(-130%); transition: transform 0.35s var(--pe); }
  body.menu-open .pt .nav-links { transform: translateY(0); }
  .pt .nav-links > a { padding: 15px 4px; border-bottom: 1px solid var(--pt-line); }
  .pt .nav-links .btn { margin-top: 12px; justify-content: center; }
  .pt .burger { display: inline-flex; }
  .pt .nav-home .lbl { display: none; }
  .pt .hero-stats-in { grid-template-columns: 1fr 1fr; }
  .pt .hstat:nth-child(2) { border-right: 0; }
  .pt .hstat:nth-child(-n+2) { border-bottom: 1px solid var(--pt-line); }
  .pt .sched-grid { grid-template-columns: 1fr; }
  .pt .aireka-ba { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .pt .container { width: calc(100% - 36px); }
  .pt .hero h1 { font-size: clamp(2.1rem, 10vw, 3rem); }
  .pt .hero-meta { flex-wrap: wrap; gap: 4px 0; }
  .pt .hero-meta > div { padding: 12px 18px 0 0; margin-right: 18px; }
  .pt .sys-grid { grid-template-columns: 1fr; }
  .pt .sys { border-right: 0; border-bottom: 1px solid var(--pt-line); }
  .pt .sys:last-child { border-bottom: 0; }
  .pt .sys:nth-child(-n+2) { border-bottom: 1px solid var(--pt-line); }
  .pt .sec-benefits { grid-template-columns: 1fr; gap: 14px; }
  .pt .sec-ben { padding: 14px 0 0; border-bottom: 1px solid rgba(20, 24, 28, 0.14); }
  .pt .layer { grid-template-columns: 48px 26px 1fr; gap: 12px; }
  .pt .proj-strip { grid-template-columns: 1fr; }
  .pt .proj-log { grid-template-columns: 1fr; }
  .pt .plog { border-right: 0; border-bottom: 1px solid var(--pt-line); }
  .pt .plog:last-child { border-bottom: 0; }
  .pt .foot { font-size: 0.7rem; }
}
@media (prefers-reduced-motion: reduce) {
  .pt .reveal { transition: none; opacity: 1; transform: none; }
  .pt .strip img, .pt .sys-thumb, .pt .btn, .pt .doc-arr { transition: none; }
}