/* SANPING design system — see docs/설계서.md */
:root {
  --navy-900: #071A2B;
  --navy-800: #102A43;
  --blue-700: #1D5FA7;
  --blue-500: #347FC4;
  --bg: #F5F7F9;
  --white: #FFFFFF;
  --text: #101820;
  --text-2: #5B6570;
  --border: #DCE2E8;
  --on-dark-2: #A9B7C6;
  --line-dark: rgba(255,255,255,.14);

  --wrap: 1320px;
  --gutter: 40px;
  --sec: 160px;
  --hd: 83px;
  --ease: cubic-bezier(.2,.7,.2,1);

  --f-body: Inter, "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
}
:lang(ja) { --f-body: Inter, "Noto Sans JP", "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif; }
:lang(zh-CN) { --f-body: Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif; }

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--hd); -webkit-text-size-adjust: 100%; }
body { font-family: var(--f-body); font-size: 17px; line-height: 1.7; color: var(--text); background: var(--white); word-break: keep-all; overflow-wrap: break-word; -webkit-font-smoothing: antialiased; }
:lang(ja) body, :lang(zh-CN) body { word-break: normal; line-break: strict; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--blue-500); outline-offset: 3px; }
[hidden] { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: fixed; left: 16px; top: -60px; z-index: 100; background: var(--navy-800); color: #fff; padding: 12px 18px; }
.skip:focus { top: 16px; }

.wrap { max-width: calc(var(--wrap) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }

/* TYPE */
.eyebrow, .label { font-size: 13px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--blue-700); }
.label { letter-spacing: .12em; color: var(--text-2); margin-bottom: 20px; }
.on-dark.eyebrow, .navy .eyebrow { color: var(--blue-500); }
.h1 { font-size: clamp(40px, 6.1vw, 88px); font-weight: 600; line-height: 1.12; letter-spacing: -.035em; }
.h1.sm { font-size: clamp(38px, 5vw, 72px); }
.h2 { font-size: clamp(34px, 4.2vw, 60px); font-weight: 600; line-height: 1.15; letter-spacing: -.03em; }
.h2.md { font-size: clamp(30px, 3.4vw, 48px); line-height: 1.25; }
:lang(ko) .h1, :lang(ja) .h1, :lang(zh-CN) .h1 { line-height: 1.22; }
:lang(ko) .h2, :lang(ja) .h2, :lang(zh-CN) .h2 { line-height: 1.3; }
.lead { font-size: clamp(17px, 1.4vw, 20px); color: var(--text-2); line-height: 1.7; }
.eyebrow + .h1, .eyebrow + .h2 { margin-top: 20px; }

/* BUTTONS */
.arr { display: inline-block; font-style: normal; transition: transform .25s var(--ease); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 14px; min-height: 56px; padding: 0 28px; border: 0; border-radius: 2px; font-size: 16px; font-weight: 600; cursor: pointer; transition: background .25s, color .25s; }
.btn:hover .arr, .link-arrow:hover .arr { transform: translateX(5px); }
.link-arrow.down:hover .arr { transform: translateY(4px); }
.btn-light { background: #fff; color: var(--navy-900); }
.btn-light:hover { background: #E6EDF4; }
.btn-dark { background: var(--navy-800); color: #fff; }
.btn-dark:hover { background: var(--blue-700); }
.btn[disabled] { opacity: .5; cursor: wait; }
.link-arrow { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; font-size: 15px; font-weight: 600; color: var(--blue-700); background: none; border: 0; cursor: pointer; }
.link-arrow.on-dark { color: #fff; }

/* HEADER */
.hd { position: fixed; inset: 0 0 auto; z-index: 50; height: var(--hd); color: #fff; transition: background .28s, color .28s, transform .28s var(--ease), box-shadow .28s; }
.hd.is-solid { background: #fff; color: var(--navy-800); box-shadow: 0 1px 0 var(--border); }
.hd.is-hidden { transform: translateY(-100%); }
.hd-in { height: 100%; max-width: calc(1440px); margin: 0 auto; padding: 0 var(--gutter); display: flex; align-items: center; gap: 32px; }
.hd-logo { display: flex; align-items: center; gap: 12px; flex: none; }
.hd-logo img { height: 32px; width: auto; }
.logo-n, .hd.is-solid .logo-w { display: none; }
.hd.is-solid .logo-n { display: block; }
.hd-name { font-size: 15px; font-weight: 700; letter-spacing: .12em; line-height: 1.1; }
.hd-name small { display: block; font-size: 9px; font-weight: 500; letter-spacing: .2em; opacity: .75; }
.hd-panel { flex: 1; display: flex; align-items: center; gap: 28px; }
.gnb { margin: 0 auto; }
.gnb > ul { display: flex; gap: 4px; }
.gnb > ul > li { position: relative; }
.gnb > ul > li > a { display: flex; align-items: center; height: var(--hd); padding: 0 14px; font-size: 15px; font-weight: 600; letter-spacing: .06em; white-space: nowrap; }
.gnb > ul > li > a:hover { color: var(--blue-500); }
.hd.is-solid .gnb > ul > li > a:hover { color: var(--blue-700); }
.sub { position: absolute; top: calc(var(--hd) - 8px); left: 0; min-width: 260px; background: #fff; color: var(--text); box-shadow: 0 12px 32px rgba(7,26,43,.12); border-top: 2px solid var(--blue-700); padding: 8px 0; opacity: 0; visibility: hidden; transform: translateY(6px); transition: opacity .25s, transform .25s var(--ease), visibility .25s; }
.has-sub:hover .sub, .has-sub:focus-within .sub { opacity: 1; visibility: visible; transform: none; }
.sub a { display: flex; align-items: center; min-height: 44px; padding: 0 20px; font-size: 14px; font-weight: 500; }
.sub a:hover { background: var(--bg); color: var(--blue-700); }
.langs { display: flex; gap: 2px; font-size: 13px; font-weight: 600; letter-spacing: .06em; }
.langs a { display: grid; place-items: center; min-width: 36px; min-height: 44px; opacity: .6; }
.langs a:hover, .langs a[aria-current] { opacity: 1; }
.langs a[aria-current] { text-decoration: underline; text-underline-offset: 6px; }
.btn-cta { min-height: 46px; padding: 0 20px; font-size: 15px; white-space: nowrap; flex: none; background: #fff; color: var(--navy-900); }
.hd.is-solid .btn-cta { background: var(--navy-800); color: #fff; }
.btn-cta:hover { background: var(--blue-700) !important; color: #fff !important; }
.burger { display: none; margin-left: auto; width: 44px; height: 44px; background: none; border: 0; position: relative; cursor: pointer; }
.burger span { position: absolute; left: 10px; right: 10px; height: 2px; background: currentColor; transition: transform .28s var(--ease), top .28s; }
.burger span:first-child { top: 17px; } .burger span:last-child { top: 25px; }
.menu-open .burger span:first-child { top: 21px; transform: rotate(45deg); }
.menu-open .burger span:last-child { top: 21px; transform: rotate(-45deg); }

/* HERO */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: flex; flex-direction: column; justify-content: flex-end; background: var(--navy-900); color: #fff; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .45; }
.hero-map { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-map .dots { fill: rgba(255,255,255,.06); }
.hero-map .grat line { stroke: rgba(255,255,255,.06); stroke-width: 1; }
.hero-map .arc { fill: none; stroke: var(--blue-500); stroke-width: 1.5; stroke-dasharray: 1200; stroke-dashoffset: 1200; animation: draw 2.4s .6s var(--ease) forwards; opacity: .9; }
.hero-map .arc.a2 { animation-delay: 1s; }
.hero-map .node circle { fill: #fff; }
.hero-map .node .ring { fill: none; stroke: rgba(255,255,255,.35); }
.hero-map text { fill: #fff; font: 600 14px Inter, sans-serif; letter-spacing: .16em; }
.hero-map text.coord { fill: var(--on-dark-2); font-weight: 400; font-size: 12px; letter-spacing: .06em; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--navy-900) 30%, rgba(7,26,43,.75) 52%, rgba(7,26,43,.1) 78%); pointer-events: none; }
.hero-in, .hero-foot { position: relative; z-index: 1; width: 100%; }
.hero-in { padding-top: calc(var(--hd) + 120px); padding-bottom: 96px; }
.hero .h1 { margin-top: 28px; max-width: 14em; }
:lang(ja) .hero .h1, :lang(zh-CN) .hero .h1 { font-size: clamp(34px, 4.6vw, 68px); max-width: none; }
.hero-sub { margin-top: 32px; max-width: 620px; font-size: clamp(17px, 1.4vw, 20px); color: var(--on-dark-2); line-height: 1.7; }
.hero-cta { margin-top: 48px; display: flex; flex-wrap: wrap; align-items: center; gap: 16px 32px; }
.hero-foot { display: flex; justify-content: space-between; gap: 24px; padding-top: 28px; padding-bottom: 32px; border-top: 1px solid var(--line-dark); font-size: 13px; font-weight: 600; letter-spacing: .16em; color: var(--on-dark-2); }
.chain { display: flex; flex-wrap: wrap; align-items: center; row-gap: 4px; }
.chain span { margin: 0 14px; color: var(--blue-500); }

/* SECTIONS */
.sec { padding: var(--sec) 0; }
.bg-gray { background: var(--bg); }
.navy { background: var(--navy-800); color: #fff; }
.navy .lead { color: var(--on-dark-2); }
.sec-head { margin-bottom: 88px; }
.sec-head.split { display: grid; grid-template-columns: 7fr 5fr; gap: 48px; align-items: end; }
.sec-head .lead { max-width: 480px; }

/* POSITIONING */
.bridge { margin: 48px 0 112px; display: grid; grid-template-columns: auto 1fr auto; align-items: end; gap: 32px; }
.bridge-end { display: flex; flex-direction: column; font-size: clamp(15px, 1.3vw, 18px); font-weight: 600; letter-spacing: .16em; color: var(--text-2); }
.bridge-end strong { font-size: clamp(36px, 5.4vw, 80px); font-weight: 600; letter-spacing: -.03em; line-height: 1; color: var(--navy-800); margin-top: 8px; }
.bridge-end.r { text-align: right; }
.bridge-line { position: relative; height: 1px; background: var(--border); margin-bottom: 26px; }
.bridge-line::before, .bridge-line::after { content: ""; position: absolute; top: -4px; width: 9px; height: 9px; border-radius: 50%; background: var(--navy-800); }
.bridge-line::before { left: 0; } .bridge-line::after { right: 0; }
.bridge-line span { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); background: #fff; padding: 6px 18px; border: 1px solid var(--blue-700); color: var(--blue-700); font-size: 13px; font-weight: 700; letter-spacing: .24em; }
.rv .bridge-line { transform-origin: left; }
.pos-body { display: grid; grid-template-columns: 7fr 5fr; gap: 96px; }
.pos-body .lead { margin-top: 32px; }
.interp { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--border); }
.interp li { display: flex; gap: 14px; align-items: baseline; padding: 20px 0; border-bottom: 1px solid var(--border); font-size: 18px; font-weight: 500; }
.interp li:nth-child(odd) { padding-right: 16px; }
.interp span { font-size: 12px; font-weight: 600; color: var(--blue-700); letter-spacing: .1em; }

/* MEDIA / PLACEHOLDER */
.media { position: relative; overflow: hidden; background: #E3E8EE; }
.media img { width: 100%; height: 100%; object-fit: cover; transition: transform .25s var(--ease); }
.ph { display: flex; flex-direction: column; justify-content: flex-end; gap: 4px; padding: 24px; color: var(--text-2);
  background: repeating-linear-gradient(135deg, transparent 0 14px, rgba(16,42,67,.035) 14px 15px), linear-gradient(160deg, #E8EDF2, #D7DFE7); }
.ph-tag { position: absolute; top: 20px; left: 24px; font-size: 11px; font-weight: 700; letter-spacing: .2em; color: var(--blue-700); }
.ph-t { font-size: 15px; font-weight: 600; color: var(--navy-800); }
.ph-s { font-size: 13px; }

/* BUSINESS PANELS */
.panels { display: flex; flex-direction: column; gap: 120px; }
.panel { display: grid; grid-template-columns: 7fr 5fr; gap: 80px; align-items: center; }
.panel.rev { grid-template-columns: 5fr 7fr; }
.panel.rev .panel-media { order: 2; }
.panel-media { aspect-ratio: 4 / 3; }
.panel-media > * { transition: transform .25s var(--ease); }
.panel:hover .panel-media img { transform: scale(1.03); }
.panel-num { font-size: 14px; font-weight: 600; letter-spacing: .12em; color: var(--blue-700); }
.panel-title { margin-top: 16px; font-size: clamp(26px, 2.6vw, 36px); font-weight: 600; letter-spacing: -.01em; line-height: 1.2; transition: transform .25s var(--ease); }
.panel:hover .panel-title { transform: translateX(2px); }
.panel-head { margin-top: 20px; font-size: 20px; font-weight: 600; color: var(--navy-800); }
.panel-text { margin-top: 12px; color: var(--text-2); }
.scope { margin-top: 28px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.scope summary { display: flex; justify-content: space-between; align-items: center; min-height: 52px; cursor: pointer; font-size: 15px; font-weight: 600; list-style: none; }
.scope summary::-webkit-details-marker { display: none; }
.scope summary i { position: relative; width: 12px; height: 12px; }
.scope summary i::before, .scope summary i::after { content: ""; position: absolute; left: 0; right: 0; top: 5px; height: 2px; background: currentColor; transition: transform .25s var(--ease); }
.scope summary i::after { transform: rotate(90deg); }
.scope[open] summary i::after { transform: rotate(0); }
.scope ul { padding: 4px 0 20px; display: grid; gap: 8px; }
.scope li { position: relative; padding-left: 18px; color: var(--text-2); font-size: 15px; }
.scope li::before { content: ""; position: absolute; left: 0; top: .8em; width: 8px; height: 1px; background: var(--blue-700); }
.panel .link-arrow { margin-top: 16px; }

/* WHY */
.why { display: grid; grid-template-columns: 5fr 7fr; gap: 96px; align-items: start; }
.why-head { position: sticky; top: calc(var(--hd) + 48px); }
.why-head .lead { margin-top: 28px; }
.why-list li { padding: 48px 0; border-top: 1px solid var(--border); display: grid; grid-template-columns: 64px 1fr; column-gap: 16px; }
.why-list li:last-child { border-bottom: 1px solid var(--border); }
.why-list .num { grid-row: span 2; font-size: 14px; font-weight: 600; color: var(--blue-700); letter-spacing: .1em; padding-top: 8px; }
.why-list h3 { font-size: clamp(22px, 2.2vw, 30px); font-weight: 600; letter-spacing: .02em; }
.why-list p { margin-top: 12px; color: var(--text-2); max-width: 560px; }
.qa-title { margin-top: 120px; font-size: 22px; font-weight: 600; }
.qa { margin-top: 32px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); }
.qa > div { background: #fff; padding: 32px 28px; }
.qa dt { font-size: 18px; font-weight: 600; color: var(--navy-800); }
.qa dt::before { content: "Q. "; color: var(--blue-700); }
.qa dd { margin-top: 12px; font-size: 15px; color: var(--text-2); }

/* PROCESS */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); row-gap: 64px; }
.steps li { position: relative; padding: 36px 24px 0 0; border-top: 1px solid var(--line-dark); }
.steps li::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border-radius: 50%; background: var(--blue-500); }
.step-num { font-size: 13px; font-weight: 600; letter-spacing: .12em; color: var(--blue-500); }
.steps h3 { margin-top: 12px; font-size: 17px; font-weight: 600; letter-spacing: .06em; line-height: 1.35; }
.steps p { margin-top: 8px; font-size: 15px; color: var(--on-dark-2); }

/* FOUNDER */
.founder { display: grid; grid-template-columns: 4fr 8fr; gap: 96px; }
.stat { margin-top: 32px; display: flex; flex-direction: column; }
.stat strong { font-size: clamp(80px, 9vw, 136px); font-weight: 600; line-height: .9; letter-spacing: -.04em; color: var(--navy-800); }
.stat span { margin-top: 16px; font-size: 14px; font-weight: 600; letter-spacing: .18em; }
.stat-note { margin-top: 8px; font-size: 14px; color: var(--text-2); }
.founder-main .lead { margin-top: 28px; }
.areas { margin-top: 40px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--border); }
.areas li { padding: 18px 16px 18px 0; border-bottom: 1px solid var(--border); font-size: 16px; font-weight: 500; }
.projects { margin-top: 120px; display: grid; grid-template-columns: 4fr 6fr 2fr; gap: 48px; align-items: start; padding: 48px; border: 1px solid var(--border); background: var(--bg); }
.est { margin-top: 12px; font-size: 32px; font-weight: 600; letter-spacing: -.01em; color: var(--navy-800); }
.projects h3 { font-size: 20px; font-weight: 600; }
.projects p { margin-top: 8px; color: var(--text-2); }
.badge { justify-self: end; display: inline-block; padding: 6px 12px; border: 1px solid var(--border); background: #fff; font-size: 13px; font-weight: 600; color: var(--text-2); white-space: nowrap; }
.notice { margin-top: 20px; font-size: 13px; color: var(--text-2); }

/* PRODUCTS */
.cat { font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--blue-700); }
.cat span { color: var(--text-2); letter-spacing: .04em; text-transform: none; }
.prod-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 24px; }
.pcard { background: #fff; height: 100%; display: flex; flex-direction: column; }
.pcard-media { aspect-ratio: 16 / 10; }
.pcard:hover .pcard-media img { transform: scale(1.03); }
.pcard-body { padding: 36px 40px 40px; }
.pcard h3 { margin-top: 10px; font-size: 32px; font-weight: 600; letter-spacing: .02em; }
.pcard-body > p:not(.cat):not(.moq) { margin-top: 8px; color: var(--text-2); }
.tags { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { padding: 4px 10px; background: var(--bg); font-size: 13px; font-weight: 600; color: var(--navy-800); }
.tags li.st { background: var(--navy-800); color: #fff; }
.moq { margin-top: 12px; font-size: 14px; color: var(--text-2); }
.pcard .link-arrow { margin-top: 20px; }
.prod-cats { display: grid; gap: 24px; }
.ccard { background: #fff; padding: 32px 36px; display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.ccard-d { font-size: 17px; font-weight: 500; color: var(--navy-800); }
.ccard .badge { margin-top: 8px; background: var(--bg); border: 0; }
.prod-note { margin-top: 48px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; color: var(--text-2); }

/* INSIGHT */
.ins-grid { display: grid; grid-template-columns: 6fr 3fr 3fr; gap: 32px; align-items: start; }
.icard .media { aspect-ratio: 4 / 5; }
.icard.lg .media { aspect-ratio: 5 / 4; }
.icard .ph-t { display: none; }
.icard .cat { margin-top: 20px; }
.icard h3 { margin-top: 10px; font-size: 20px; font-weight: 600; line-height: 1.45; }
.icard.lg h3 { font-size: clamp(22px, 2.2vw, 30px); line-height: 1.35; }
.ins-more { margin-top: 80px; padding-top: 32px; border-top: 1px solid var(--border); display: grid; grid-template-columns: 3fr 9fr; gap: 16px 32px; }
.ins-more ul { display: grid; grid-template-columns: 1fr 1fr; gap: 0 32px; }
.ins-more li { display: flex; flex-direction: column; gap: 2px; padding: 16px 0; border-bottom: 1px solid var(--border); font-weight: 500; }
.ins-more .ft-muted { grid-column: 2; }

/* CTA */
.cta-band { background: var(--navy-900); color: #fff; padding: 128px 0; }
.cta-in { display: grid; grid-template-columns: 7fr 5fr; gap: 48px; align-items: end; }
.cta-in p { color: var(--on-dark-2); font-size: 18px; margin-bottom: 32px; }

/* FOOTER */
.ft { background: #04121F; color: var(--on-dark-2); padding: 96px 0 40px; font-size: 14px; }
.ft-top { display: grid; grid-template-columns: 5fr 4fr 3fr; gap: 48px; padding-bottom: 56px; border-bottom: 1px solid var(--line-dark); }
.ft-brand img { height: 32px; width: auto; }
.ft-brand p { margin-top: 24px; line-height: 1.8; }
.ft-brand strong { color: #fff; letter-spacing: .06em; }
.ft-nav ul { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 24px; }
.ft-nav a, .ft-contact > a:not(.link-arrow) { display: inline-flex; align-items: center; min-height: 44px; color: #fff; }
.ft-nav a:hover, .ft-contact > a:hover { color: var(--blue-500); }
.ft-contact { display: flex; flex-direction: column; align-items: flex-start; }
.ft-label { font-size: 12px; font-weight: 600; letter-spacing: .18em; margin-bottom: 4px; }
.ft-muted { font-size: 13px; color: #7F8FA0; }
.ft-info { display: grid; grid-template-columns: repeat(4, auto); justify-content: start; gap: 12px 48px; padding: 32px 0; border-bottom: 1px solid var(--line-dark); }
.ft-info dt { font-size: 12px; letter-spacing: .06em; color: #7F8FA0; }
.ft-info dd { color: #D4DCE4; }
.ft-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; padding-top: 24px; }
.ft .langs a { color: #fff; }

/* CONTACT PAGE */
.page-hero { background: var(--navy-900); color: #fff; padding: calc(var(--hd) + 104px) 0 96px; }
.page-hero .h1 { margin-top: 24px; }
.rfq-wrap { display: grid; grid-template-columns: 8fr 4fr; gap: 96px; align-items: start; }
.types { border: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; inset: 0; }
.chip span { display: inline-flex; align-items: center; min-height: 44px; padding: 0 18px; border: 1px solid var(--border); font-size: 15px; font-weight: 500; cursor: pointer; transition: .2s; }
.chip input:checked + span { background: var(--navy-800); border-color: var(--navy-800); color: #fff; }
.chip input:focus-visible + span { outline: 2px solid var(--blue-500); outline-offset: 2px; }
.rfq-steps { margin: 56px 0 8px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.rfq-steps li { padding-top: 16px; border-top: 2px solid var(--border); font-size: 14px; color: var(--text-2); }
.rfq-steps li.on { border-color: var(--navy-800); color: var(--navy-800); }
.rfq-steps b { display: block; font-size: 12px; letter-spacing: .16em; }
.step-h { margin: 40px 0 32px; font-size: clamp(24px, 2.4vw, 32px); font-weight: 600; line-height: 1.3; }
.fields { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.f { display: flex; flex-direction: column; gap: 8px; }
.f.full { grid-column: 1 / -1; }
.f label, .flabel { font-size: 14px; font-weight: 600; }
.req { color: var(--blue-700); }
.f input:not([type=checkbox]):not([type=file]), .f select, .f textarea { width: 100%; min-height: 52px; padding: 12px 16px; border: 1px solid var(--border); border-radius: 2px; background: #fff; font-size: 16px; transition: border-color .2s; }
.f textarea { resize: vertical; }
.f input:hover, .f select:hover, .f textarea:hover { border-color: #B5C1CD; }
.f input:focus, .f select:focus, .f textarea:focus { outline: none; border-color: var(--blue-700); box-shadow: 0 0 0 3px rgba(29,95,167,.15); }
.f input:user-invalid { border-color: #B42318; }
.f.check { flex-direction: row; align-items: flex-start; gap: 12px; }
.f.check input { width: 20px; height: 20px; margin-top: 3px; flex: none; accent-color: var(--navy-800); }
.f.check label { font-weight: 400; font-size: 15px; color: var(--text-2); }
.drop { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; min-height: 150px; padding: 24px; border: 1px dashed #B5C1CD; background: var(--bg); text-align: center; cursor: pointer; transition: border-color .2s, background .2s; }
.drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.drop:hover, .drop.is-over { border-color: var(--blue-700); background: #EAF1F8; }
.drop:focus-within { outline: 2px solid var(--blue-500); outline-offset: 2px; }
.drop-t { font-weight: 500; }
.drop-t u { color: var(--blue-700); text-underline-offset: 3px; }
.drop-h { font-size: 13px; color: var(--text-2); }
.files { display: grid; gap: 8px; }
.files li { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border: 1px solid var(--border); font-size: 14px; }
.files .fn { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.files .fs { color: var(--text-2); }
.files li.bad { border-color: #F2B8B5; background: #FEF3F2; }
.files button { min-width: 44px; min-height: 36px; background: none; border: 0; color: var(--text-2); cursor: pointer; font-size: 13px; text-decoration: underline; }
.rfq-actions { margin-top: 40px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.rfq-actions:has(> :only-child) { justify-content: flex-end; }
.link-arrow.back:hover .arr { transform: translateX(-5px); }
.progress { margin-top: 24px; height: 3px; background: var(--border); }
.progress span { display: block; height: 100%; width: 0; background: var(--blue-700); transition: width .2s; }
.rfq-msg { margin-top: 16px; min-height: 1.7em; color: #B42318; font-size: 15px; }
.rfq-msg.info { color: var(--text-2); }
.rfq-done { padding: 56px 0; }
.rfq-done:focus { outline: none; }
.rfq-done p:not(.eyebrow) { color: var(--text-2); }
.rfq-aside { position: sticky; top: calc(var(--hd) + 32px); padding: 40px; background: var(--bg); }
.rfq-aside ol { margin-bottom: 40px; }
.rfq-aside li { display: flex; gap: 16px; padding: 16px 0; border-top: 1px solid var(--border); }
.rfq-aside li > span { font-size: 13px; font-weight: 600; color: var(--blue-700); padding-top: 2px; }
.rfq-aside b { font-weight: 600; }
.rfq-aside li p { font-size: 14px; color: var(--text-2); }
.mail { font-size: 18px; font-weight: 600; color: var(--navy-800); border-bottom: 1px solid currentColor; }

/* MOTION */
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes rise { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }
.load { animation: rise .7s var(--ease) both; }
.load:nth-child(2) { animation-delay: .12s; } .load:nth-child(3) { animation-delay: .24s; } .load:nth-child(4) { animation-delay: .36s; }
.hero-foot.load { animation-delay: .5s; }
.js [data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.js [data-reveal].in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .js [data-reveal] { opacity: 1; transform: none; }
  .hero-map .arc { stroke-dashoffset: 0; }
}

/* RESPONSIVE — tablet */
@media (max-width: 1320px) {
  .hd-in { gap: 20px; }
  .hd-panel { gap: 16px; }
  .gnb > ul > li > a { padding: 0 9px; font-size: 14px; }
  .hd-name { display: none; }
}
@media (max-width: 1180px) {
  :root { --sec: 112px; --gutter: 32px; }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .qa { grid-template-columns: 1fr 1fr; }
}
/* mobile nav from 1024 down */
@media (max-width: 1100px) {
  :root { --hd: 72px; }
  .hd-name { display: block; }
  .burger { display: block; }
  .hd-panel { position: fixed; inset: var(--hd) 0 0; flex-direction: column; align-items: stretch; gap: 32px; padding: 24px var(--gutter) 40px; background: #fff; color: var(--navy-800); overflow-y: auto; visibility: hidden; opacity: 0; transform: translateY(-8px); transition: opacity .28s, transform .28s var(--ease), visibility .28s; }
  .menu-open .hd-panel { visibility: visible; opacity: 1; transform: none; }
  .menu-open .hd { background: #fff; color: var(--navy-800); }
  .menu-open .logo-w { display: none; } .menu-open .logo-n { display: block; }
  .menu-open { overflow: hidden; }
  .gnb { margin: 0; }
  .gnb > ul { flex-direction: column; gap: 0; }
  .gnb > ul > li { border-bottom: 1px solid var(--border); }
  .gnb > ul > li > a { height: 60px; padding: 0; font-size: 20px; }
  .sub { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; padding: 0 0 12px; min-width: 0; display: grid; grid-template-columns: 1fr 1fr; }
  .sub a { padding: 0; min-height: 40px; color: var(--text-2); }
  .sub a:hover { background: none; }
  .langs { font-size: 15px; }
  .btn-cta { min-height: 56px; background: var(--navy-800); color: #fff; }
  .sec-head.split, .pos-body, .why, .founder, .cta-in, .rfq-wrap, .prod-grid { grid-template-columns: 1fr; gap: 32px; }
  .pos-body { gap: 56px; }
  .why-head, .rfq-aside { position: static; }
  .panel, .panel.rev { grid-template-columns: 1fr; gap: 32px; }
  .panel.rev .panel-media { order: 0; }
  .projects { grid-template-columns: 1fr; gap: 16px; padding: 32px; }
  .badge { justify-self: start; }
  .ins-grid { grid-template-columns: 1fr 1fr; }
  .icard.lg { grid-column: 1 / -1; }
  .ft-top { grid-template-columns: 1fr 1fr; }
  .ft-brand { grid-column: 1 / -1; }
  .ft-info { grid-template-columns: 1fr 1fr; }
}
/* RESPONSIVE — mobile */
@media (max-width: 640px) {
  :root { --sec: 72px; --gutter: 20px; }
  body { font-size: 16px; }
  .hero-in { padding-top: calc(var(--hd) + 64px); padding-bottom: 56px; }
  .hero .h1 { font-size: clamp(34px, 10vw, 44px); }
  .hero-cta .btn { width: 100%; }
  .hero-foot { flex-direction: column; gap: 8px; font-size: 11px; }
  .chain span { margin: 0 6px; }
  .hero::after { background: linear-gradient(0deg, var(--navy-900) 30%, rgba(7,26,43,.6)); }
  .sec-head { margin-bottom: 48px; }
  .bridge { grid-template-columns: 1fr; gap: 20px; margin: 32px 0 64px; }
  .bridge-end.r { text-align: left; }
  .bridge-line { width: 1px; height: 64px; margin: 0 0 0 4px; }
  .bridge-line::after { top: auto; bottom: 0; left: -4px; } .bridge-line::before { left: -4px; }
  .bridge-line span { left: 24px; transform: translateY(-50%); }
  .interp li { font-size: 16px; }
  .panels { gap: 72px; }
  .why-list li { padding: 32px 0; grid-template-columns: 44px 1fr; }
  .qa-title { margin-top: 72px; }
  .qa { grid-template-columns: 1fr; }
  .qa > div { padding: 24px 20px; }
  /* vertical timeline */
  .steps { grid-template-columns: 1fr; row-gap: 0; }
  .steps li { padding: 0 0 32px 32px; border-top: 0; border-left: 1px solid var(--line-dark); }
  .steps li:last-child { border-left-color: transparent; padding-bottom: 0; }
  .steps li::before { top: 2px; left: -5px; }
  .steps h3 { margin-top: 4px; }
  .areas { grid-template-columns: 1fr 1fr; }
  .projects { margin-top: 72px; padding: 24px; }
  .pcard-body { padding: 28px 24px 32px; }
  .ccard { padding: 28px 24px; }
  .ins-grid { grid-template-columns: 1fr; gap: 48px; }
  .icard .media, .icard.lg .media { aspect-ratio: 16 / 10; }
  .ins-more { grid-template-columns: 1fr; margin-top: 56px; }
  .ins-more ul { grid-template-columns: 1fr; }
  .ins-more .ft-muted { grid-column: 1; }
  .cta-band { padding: 88px 0; }
  .cta-in .btn { width: 100%; }
  .ft { padding-top: 64px; }
  .ft-top, .ft-info { grid-template-columns: 1fr; }
  .ft-bottom { flex-direction: column; align-items: flex-start; }
  .page-hero { padding: calc(var(--hd) + 56px) 0 64px; }
  .fields { grid-template-columns: 1fr; }
  .rfq-steps li { font-size: 12px; }
  .rfq-actions { flex-direction: column-reverse; align-items: stretch; }
  .rfq-actions .btn { width: 100%; }
  .rfq-aside { padding: 28px 24px; }
}