:root {
  --navy-950: #050b14;
  --navy-900: #07111f;
  --navy-850: #0a1728;
  --navy-800: #0d1f35;
  --blue: #1677ff;
  --cyan: #25d4ff;
  --cyan-soft: #a7ecff;
  --ink: #0b1729;
  --muted: #5f6f82;
  --line: #dbe4ed;
  --paper: #f5f8fb;
  --white: #ffffff;
  --max: 1240px;
  --shadow: 0 24px 70px rgba(10, 35, 66, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Pretendard", "Noto Sans KR", "Malgun Gothic", system-ui, -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  word-break: keep-all;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
em { color: var(--blue); font-style: normal; }

.skip-link {
  position: fixed;
  z-index: 999;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  color: #fff;
  background: #000;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.scroll-progress {
  position: fixed;
  z-index: 200;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  pointer-events: none;
}
.scroll-progress span { display: block; width: 0; height: 100%; background: linear-gradient(90deg, var(--blue), var(--cyan)); }

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  padding: 0 max(28px, calc((100vw - var(--max)) / 2));
  color: #fff;
  background: rgba(5, 11, 20, .68);
  border-bottom: 1px solid rgba(255, 255, 255, .09);
  backdrop-filter: blur(18px);
  transition: background .25s ease, height .25s ease;
}
.site-header.is-scrolled { height: 68px; background: rgba(5, 11, 20, .92); }
.brand { display: flex; align-items: center; gap: 14px; }
.brand img { width: 108px; height: 38px; object-fit: contain; object-position: left center; filter: brightness(0) invert(1); }
.brand span { padding-left: 14px; font-size: 10px; font-weight: 800; letter-spacing: .22em; border-left: 1px solid rgba(255,255,255,.28); }
.site-header nav { display: flex; align-items: center; gap: 30px; }
.site-header nav a { color: rgba(255,255,255,.72); font-size: 13px; font-weight: 700; transition: color .2s ease; }
.site-header nav a:hover, .site-header nav a:focus-visible { color: #fff; }
.site-header .nav-cta { padding: 9px 16px; color: #fff; border: 1px solid rgba(37,212,255,.55); border-radius: 999px; }

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
  background: radial-gradient(circle at 72% 42%, #0d3151 0, var(--navy-900) 30%, var(--navy-950) 72%);
}
.hero-grid, .decision-grid {
  position: absolute;
  inset: 0;
  opacity: .22;
  background-image: linear-gradient(rgba(85,185,255,.15) 1px, transparent 1px), linear-gradient(90deg, rgba(85,185,255,.15) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.9), transparent 92%);
}
.hero-glow { position: absolute; width: 440px; height: 440px; border-radius: 50%; filter: blur(110px); opacity: .17; }
.hero-glow-one { top: -80px; right: 6%; background: var(--cyan); }
.hero-glow-two { bottom: -200px; left: 18%; background: #5f4bff; }
.hero-inner {
  position: relative;
  z-index: 2;
  width: min(var(--max), calc(100% - 56px));
  margin: 0 auto;
  padding: 140px 0 100px;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(450px, .96fr);
  align-items: center;
  gap: 70px;
}
.eyebrow, .section-index, .micro-label, .infra-label {
  margin: 0 0 22px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .2em;
}
.hero .eyebrow { color: var(--cyan); }
.hero h1 {
  max-width: 690px;
  margin: 0;
  font-size: clamp(52px, 6.2vw, 92px);
  line-height: 1.07;
  letter-spacing: -.065em;
}
.hero-description { max-width: 710px; margin: 30px 0 0; color: rgba(255,255,255,.72); font-size: clamp(18px, 1.55vw, 23px); line-height: 1.75; }
.hero-description span { display: inline; }
.hero-actions { display: flex; gap: 12px; margin-top: 38px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 18px; min-height: 52px; padding: 0 22px; border-radius: 7px; font-size: 14px; font-weight: 800; }
.button-primary { color: #02101a; background: var(--cyan); box-shadow: 0 10px 35px rgba(37,212,255,.25); }
.button-ghost { color: #fff; border: 1px solid rgba(255,255,255,.24); background: rgba(255,255,255,.04); }
.hero-stats { display: flex; gap: 0; margin-top: 56px; }
.hero-stat { min-width: 145px; padding: 0 28px; border-left: 1px solid rgba(255,255,255,.18); }
.hero-stat:first-child { padding-left: 0; border-left: 0; }
.hero-stat strong { display: block; font-size: 33px; line-height: 1; letter-spacing: -.04em; }
.hero-stat strong small { margin-left: 3px; font-size: 14px; color: var(--cyan-soft); }
.hero-stat span { display: block; margin-top: 10px; color: rgba(255,255,255,.58); font-size: 12px; line-height: 1.4; }

.ecosystem { position: relative; width: min(560px, 100%); aspect-ratio: 1; margin: 0 auto; }
.chain-ring {
  position: absolute;
  inset: 5%;
  border: 1px solid rgba(37,212,255,.35);
  border-radius: 50%;
  box-shadow: inset 0 0 50px rgba(37,212,255,.06), 0 0 70px rgba(22,119,255,.08);
  animation: slowRotate 50s linear infinite;
}
.chain-ring::before, .chain-ring::after { content: ""; position: absolute; border-radius: 50%; border: 1px dashed rgba(255,255,255,.12); }
.chain-ring::before { inset: 9%; }
.chain-ring::after { inset: 22%; }
.chain-ring span { position: absolute; top: -12px; left: 50%; width: 250px; margin-left: -125px; color: rgba(37,212,255,.62); background: var(--navy-900); font-size: 8px; font-weight: 800; letter-spacing: .14em; text-align: center; }
.ecosystem-center {
  position: absolute;
  z-index: 4;
  top: 50%;
  left: 50%;
  width: 158px;
  height: 158px;
  display: grid;
  place-content: center;
  text-align: center;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 50%;
  background: radial-gradient(circle at 35% 25%, #1a4f7d, #07182b 72%);
  box-shadow: 0 0 70px rgba(37,212,255,.18);
  transform: translate(-50%, -50%);
}
.ecosystem-mark { position: absolute; top: 18px; left: 18px; width: 26px; height: 26px; display: grid; place-items: center; color: #01101b; background: var(--cyan); border-radius: 7px; font-size: 13px; font-weight: 950; transform: rotate(-10deg); }
.ecosystem-center strong { font-size: 27px; letter-spacing: .08em; }
.ecosystem-center small { color: var(--cyan-soft); font-size: 11px; }
.ecosystem-node {
  --node-color: var(--cyan);
  position: absolute;
  z-index: 5;
  width: 125px;
  min-height: 64px;
  padding: 12px 13px;
  border: 1px solid color-mix(in srgb, var(--node-color) 60%, transparent);
  border-radius: 10px;
  background: rgba(6,18,32,.92);
  box-shadow: 0 12px 40px rgba(0,0,0,.2);
  text-align: left;
}
.ecosystem-node::before { content: ""; position: absolute; top: 18px; left: -32px; width: 30px; height: 1px; background: linear-gradient(90deg, transparent, var(--node-color)); }
.ecosystem-node strong { display: block; font-size: 12px; }
.ecosystem-node span { display: block; color: rgba(255,255,255,.52); font-size: 9px; }
.ecosystem-node:nth-child(1) { top: 8%; left: 20%; }
.ecosystem-node:nth-child(2) { top: 14%; right: 4%; }
.ecosystem-node:nth-child(3) { top: 49%; right: -3%; }
.ecosystem-node:nth-child(4) { bottom: 7%; right: 18%; }
.ecosystem-node:nth-child(5) { bottom: 19%; left: -1%; }
.ecosystem-node:nth-child(1)::before, .ecosystem-node:nth-child(5)::before { left: auto; right: -32px; background: linear-gradient(90deg, var(--node-color), transparent); }
.hero-scroll { position: absolute; z-index: 3; bottom: 24px; left: 50%; display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.35); font-size: 8px; font-weight: 800; letter-spacing: .2em; transform: translateX(-50%); }
.hero-scroll span { width: 38px; height: 1px; background: rgba(255,255,255,.35); }

.section { padding: 150px 0; }
.section-shell { width: min(var(--max), calc(100% - 56px)); margin: 0 auto; }
.section-light { background: #fff; }
.section-dark { position: relative; color: #fff; background: var(--navy-900); }
.section-dark::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(120deg, transparent 50%, rgba(28,118,255,.06)); }
.section-heading { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .58fr); gap: 70px; align-items: end; margin-bottom: 74px; }
.section-heading .section-index { grid-column: 1 / -1; margin-bottom: -45px; }
.section-heading h2 { margin: 0; font-size: clamp(40px, 4.5vw, 67px); line-height: 1.15; letter-spacing: -.055em; }
.section-heading > p:last-child { margin: 0 0 8px; color: var(--muted); font-size: 17px; }
.heading-on-dark > p:last-child { color: rgba(255,255,255,.58); }
.heading-on-dark em { color: var(--cyan); }

.problem-grid { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.problem-card { position: relative; min-height: 300px; padding: 34px 24px 36px; border-left: 1px solid var(--line); transition: background .25s ease, transform .25s ease; }
.problem-card:first-child { border-left: 0; }
.problem-card:hover { z-index: 2; background: var(--paper); transform: translateY(-8px); }
.problem-card .number { color: var(--blue); font-size: 12px; font-weight: 900; letter-spacing: .15em; }
.problem-card h3 { margin: 70px 0 14px; font-size: 23px; letter-spacing: -.035em; }
.problem-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.problem-card::after { content: ""; position: absolute; top: 0; left: 0; width: 0; height: 3px; background: var(--blue); transition: width .3s ease; }
.problem-card:hover::after { width: 100%; }
.statement { position: relative; margin: 100px 0 0; padding: 60px 72px 60px 230px; color: #fff; background: linear-gradient(115deg, #0b1c31 0, #0c2944 55%, #105174); border-radius: 18px; overflow: hidden; }
.statement::before { content: "P"; position: absolute; left: 42px; bottom: -72px; color: rgba(255,255,255,.045); font-size: 240px; font-weight: 950; line-height: 1; }
.statement span { color: var(--cyan); font-size: 10px; font-weight: 900; letter-spacing: .2em; }
.statement p { margin: 14px 0 0; font-size: clamp(24px, 2.7vw, 39px); line-height: 1.45; letter-spacing: -.035em; }
.statement strong { color: var(--cyan-soft); }

.formula { display: flex; align-items: center; gap: 22px; padding: 28px 0; border-top: 1px solid rgba(255,255,255,.12); border-bottom: 1px solid rgba(255,255,255,.12); }
.formula > strong { color: var(--cyan); font-size: 25px; letter-spacing: .08em; }
.formula > span { color: rgba(255,255,255,.3); }
#formula-services { display: flex; flex-wrap: wrap; gap: 9px; }
#formula-services span { padding: 6px 12px; color: rgba(255,255,255,.72); background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.1); border-radius: 999px; font-size: 11px; font-weight: 800; }
.services-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; margin-top: 48px; }
.service-card { --service: var(--cyan); position: relative; grid-column: span 2; min-height: 360px; padding: 34px 30px; overflow: hidden; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.1); border-radius: 16px; transition: transform .25s ease, border-color .25s ease; }
.service-card:nth-child(4) { grid-column: span 2; }
.service-card:hover { transform: translateY(-7px); border-color: color-mix(in srgb, var(--service) 65%, transparent); }
.service-card::after { content: ""; position: absolute; width: 170px; height: 170px; top: -90px; right: -80px; border-radius: 50%; background: var(--service); filter: blur(70px); opacity: .2; }
.service-card .service-kicker { color: var(--service); font-size: 10px; font-weight: 900; letter-spacing: .18em; }
.service-card h3 { margin: 46px 0 4px; font-size: 28px; letter-spacing: -.03em; }
.service-card > p { margin: 0 0 28px; color: rgba(255,255,255,.48); font-size: 13px; }
.service-card ul { margin: 0; padding: 0; list-style: none; }
.service-card li { position: relative; padding: 10px 0 10px 18px; color: rgba(255,255,255,.78); border-top: 1px solid rgba(255,255,255,.08); font-size: 14px; }
.service-card li::before { content: ""; position: absolute; top: 20px; left: 1px; width: 6px; height: 6px; background: var(--service); border-radius: 50%; }
.service-card.chain-card { background: linear-gradient(145deg, rgba(56,215,255,.09), rgba(255,255,255,.035) 60%); border-color: rgba(56,215,255,.24); }
.service-card.chain-card::before { content: "CORE INFRASTRUCTURE"; position: absolute; right: 26px; bottom: 22px; color: rgba(56,215,255,.16); font-size: 9px; font-weight: 900; letter-spacing: .16em; }
.infra-panel { display: flex; justify-content: space-between; align-items: center; gap: 40px; margin-top: 18px; padding: 34px 38px; background: linear-gradient(100deg, rgba(22,119,255,.13), rgba(37,212,255,.05)); border: 1px solid rgba(37,212,255,.2); border-radius: 16px; }
.infra-panel h3 { margin: 3px 0 0; font-size: 20px; }
.infra-label { margin: 0; color: var(--cyan); font-size: 9px; }
.infra-list { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.infra-list span { padding: 8px 12px; color: rgba(255,255,255,.72); background: rgba(255,255,255,.05); border-radius: 6px; font-size: 12px; font-weight: 700; }
.principle-flow { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 54px; }
.principle-flow span { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; padding: 10px 16px; color: #fff; background: rgba(18,91,203,.28); border: 1px solid rgba(37,212,255,.28); border-radius: 9px; font-size: 16px; line-height: 1.35; font-weight: 800; text-align: center; box-shadow: 0 8px 24px rgba(0,0,0,.12); }
.principle-flow i { flex: 0 0 36px; width: 36px; height: 2px; background: linear-gradient(90deg, rgba(37,212,255,.25), var(--cyan)); }

.section-flow { position: relative; overflow: hidden; background: radial-gradient(circle at 86% 10%, rgba(232,174,105,.30), transparent 27%), radial-gradient(circle at 7% 88%, rgba(51,148,141,.22), transparent 31%), linear-gradient(135deg, #d4e1e5 0%, #e5e2da 52%, #d0e1dd 100%); }
.section-flow::before { content: ""; position: absolute; width: 360px; height: 360px; top: 16%; right: 7%; border: 1px solid rgba(28,101,122,.12); border-radius: 50%; box-shadow: 0 0 0 58px rgba(255,255,255,.09), 0 0 0 116px rgba(28,101,122,.035); pointer-events: none; }
.section-flow .section-shell { position: relative; z-index: 1; }
.section-flow .section-heading h2 { color: #102638; }
.section-flow .section-heading h2 em { color: #236fa3; }
.section-flow .section-heading > p:last-child { color: #3d5565; }
.section-flow .section-index { color: #15728a; }
.flow-switch, .scenario-tabs { display: inline-flex; padding: 5px; background: #dce8f1; border-radius: 999px; }
.flow-tab, .scenario-tab { min-width: 150px; padding: 11px 20px; color: #65788a; background: transparent; border: 0; border-radius: 999px; cursor: pointer; font-size: 14px; font-weight: 800; }
.flow-tab[aria-selected="true"], .scenario-tab[aria-selected="true"] { color: #fff; background: var(--navy-800); box-shadow: 0 8px 20px rgba(7,24,42,.16); }
.flow-stage { margin-top: 34px; padding: 56px; background: #fff; border: 1px solid #dce6ee; border-radius: 20px; box-shadow: var(--shadow); outline: none; }
.flow-intro { display: flex; justify-content: space-between; gap: 30px; align-items: end; }
.flow-intro span { color: var(--blue); font-size: 11px; font-weight: 900; letter-spacing: .16em; }
.flow-intro p { max-width: 480px; margin: 0; color: var(--muted); font-size: 15px; text-align: right; }
.flow-track { display: grid; grid-template-columns: repeat(9, auto); align-items: center; gap: 12px; margin-top: 62px; }
.flow-step { position: relative; min-width: 140px; min-height: 118px; display: grid; place-items: center; padding: 20px 16px; color: var(--ink); background: #f4f8fb; border: 1px solid #d7e3ec; border-radius: 14px; text-align: center; font-size: 14px; font-weight: 800; }
.flow-step strong { position: absolute; top: -12px; left: 16px; width: 25px; height: 25px; display: grid; place-items: center; color: #fff; background: var(--blue); border-radius: 50%; font-size: 10px; }
.flow-arrow { width: 28px; height: 1px; background: var(--blue); position: relative; }
.flow-arrow::after { content: ""; position: absolute; top: -3px; right: 0; width: 6px; height: 6px; border-top: 1px solid var(--blue); border-right: 1px solid var(--blue); transform: rotate(45deg); }

.section-flow .flow-switch { background: rgba(236,242,241,.68); border: 1px solid #9eb4bd; box-shadow: 0 10px 26px rgba(47,76,88,.10); }
.section-flow .flow-tab { color: #446170; }
.section-flow .flow-tab[aria-selected="true"] { color: #fff; background: #256585; box-shadow: 0 5px 14px rgba(37,101,133,.20); }
.section-flow .flow-stage { background: rgba(247,249,247,.76); border-color: #a8bbc2; box-shadow: 0 24px 55px rgba(47,69,79,.14); backdrop-filter: blur(10px); }
.section-flow .flow-intro span { color: #156d81; font-size: 12px; }
.section-flow .flow-intro p { color: #344f5e; font-size: 16px; }
.section-flow .flow-step { --step: #347f91; color: #172d3b; background: #edf4f3; border-color: color-mix(in srgb, var(--step) 48%, #d8e3e4); border-top: 4px solid var(--step); font-size: 15px; line-height: 1.5; box-shadow: 0 10px 22px rgba(47,71,80,.07); }
.section-flow .flow-step:nth-of-type(1) { --step: #38866d; background: #e7f2ec; }
.section-flow .flow-step:nth-of-type(2) { --step: #3477a0; background: #e7f0f6; }
.section-flow .flow-step:nth-of-type(3) { --step: #826da0; background: #f0ebf5; }
.section-flow .flow-step:nth-of-type(4) { --step: #a87635; background: #f7efdf; }
.section-flow .flow-step:nth-of-type(5) { --step: #2f827d; background: #e3f1ef; }
.section-flow .flow-step strong { background: var(--step); }
.section-flow .flow-arrow { height: 2px; background: #3e8297; }
.section-flow .flow-arrow::after { border-color: #3e8297; border-width: 2px 2px 0 0; }

.section.mall-section { padding: 90px 0; background: #eef3f5; }
.mall-container { width: min(var(--max), calc(100% - 56px)); min-height: 620px; margin: 0 auto; display: grid; grid-template-columns: 1.08fr .92fr; overflow: hidden; background: #fff; border: 1px solid #d5e0e5; border-radius: 22px; box-shadow: 0 24px 65px rgba(31,55,69,.14); }
.mall-visual { position: relative; min-height: 620px; overflow: hidden; background: #eef1f5; }
.mall-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 55%, rgba(255,255,255,.35)); pointer-events: none; }
.mall-visual img { width: 100%; height: 100%; object-fit: cover; }
.mall-image-label { position: absolute; z-index: 2; left: 42px; bottom: 40px; padding: 16px 20px; color: #fff; background: rgba(6,20,34,.82); border-left: 3px solid var(--cyan); backdrop-filter: blur(10px); }
.mall-image-label span { display: block; color: var(--cyan); font-size: 9px; font-weight: 900; letter-spacing: .18em; }
.mall-image-label strong { display: block; margin-top: 3px; font-size: 23px; }
.mall-content { align-self: stretch; display: flex; flex-direction: column; justify-content: center; padding: 56px; }
.mall-content h2 { max-width: 610px; margin: 0; font-size: clamp(36px, 3.2vw, 50px); line-height: 1.15; letter-spacing: -.055em; }
.mall-description { max-width: 610px; margin: 18px 0 28px; color: var(--muted); }
.mall-steps { margin: 0; padding: 0; list-style: none; counter-reset: mall; }
.mall-steps li { counter-increment: mall; position: relative; padding: 9px 0 9px 48px; border-top: 1px solid var(--line); font-size: 13px; font-weight: 700; }
.mall-steps li::before { content: counter(mall, decimal-leading-zero); position: absolute; left: 0; color: var(--blue); font-size: 11px; font-weight: 900; }

.section-business { background: #fff; }
.assumption-note { display: flex; gap: 14px; margin: -24px 0 34px; padding: 15px 18px; color: #566778; background: #f0f6fb; border-left: 3px solid var(--blue); font-size: 13px; }
.assumption-note strong { color: var(--blue); white-space: nowrap; }
.product-grid { display: grid; grid-template-columns: repeat(10, 1fr); gap: 16px; }
.product-card { position: relative; grid-column: span 2; min-height: 370px; padding: 30px 24px; border: 1px solid var(--line); border-radius: 15px; background: #fff; }
.product-card.featured { color: #fff; background: var(--navy-800); border-color: var(--navy-800); box-shadow: 0 22px 50px rgba(8,31,54,.18); transform: translateY(-10px); }
.product-card.featured::before { content: "FIRST PRIORITY"; position: absolute; top: 18px; right: 18px; color: var(--cyan); font-size: 8px; font-weight: 900; letter-spacing: .16em; }
.product-card h3 { margin: 0; font-size: 18px; }
.product-price { margin: 30px 0 0; color: var(--blue); font-size: 27px; font-weight: 950; letter-spacing: -.04em; }
.featured .product-price { color: var(--cyan); }
.product-price small { display: block; min-height: 20px; color: #8190a0; font-size: 10px; font-weight: 700; letter-spacing: 0; }
.product-purpose { margin: 14px 0 22px; color: var(--muted); font-size: 12px; }
.featured .product-purpose { color: rgba(255,255,255,.55); }
.product-card ul { margin: 0; padding: 0; list-style: none; }
.product-card li { padding: 8px 0; color: #536477; border-top: 1px solid var(--line); font-size: 12px; }
.featured li { color: rgba(255,255,255,.75); border-top-color: rgba(255,255,255,.11); }
.revenue-ladder { margin-top: 70px; padding: 38px; display: grid; grid-template-columns: 250px 1fr; gap: 40px; align-items: center; color: #fff; background: var(--navy-900); border-radius: 18px; }
.revenue-ladder h3 { margin: 5px 0 0; font-size: 23px; }
.micro-label { color: var(--blue); font-size: 9px; }
.revenue-ladder .micro-label { color: var(--cyan); }
.ladder { display: flex; align-items: center; gap: 8px; }
.ladder span { flex: 1; position: relative; padding: 15px 10px; background: rgba(255,255,255,.055); border-radius: 8px; text-align: center; font-size: 11px; font-weight: 800; }
.ladder span + span::before { content: "→"; position: absolute; left: -13px; color: var(--cyan); }
.additional-revenue { display: flex; align-items: center; gap: 30px; padding: 26px 38px; border: 1px solid var(--line); border-top: 0; border-radius: 0 0 14px 14px; }
.additional-revenue .micro-label { margin: 0; }
.additional-revenue > div { display: flex; flex-wrap: wrap; gap: 10px 24px; }
.additional-revenue span:not(.micro-label) { color: var(--muted); font-size: 12px; }

.market-section { color: #fff; background: linear-gradient(135deg, #07111f, #0b2741 62%, #0e3b58); }
.market-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-bottom: 40px; background: rgba(255,255,255,.13); border: 1px solid rgba(255,255,255,.13); }
.market-stat { padding: 38px; background: rgba(5,14,25,.58); }
.market-stat strong { display: block; color: var(--cyan); font-size: clamp(35px, 4vw, 54px); line-height: 1.1; letter-spacing: -.04em; }
.market-stat span { display: block; margin-top: 10px; font-weight: 800; }
.market-stat small { color: rgba(255,255,255,.45); font-size: 11px; }
.market-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.target-card, .pilot-card { padding: 42px; background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.13); border-radius: 15px; }
.target-card h3, .pilot-card h3 { margin: 5px 0 26px; font-size: 24px; }
.target-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.target-tags span { padding: 10px 15px; color: rgba(255,255,255,.78); border: 1px solid rgba(255,255,255,.15); border-radius: 999px; font-size: 13px; font-weight: 700; }
.pilot-goals { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.pilot-goal { padding: 16px; background: rgba(37,212,255,.08); border-radius: 8px; }
.pilot-goal strong { display: block; color: var(--cyan); font-size: 27px; }
.pilot-goal span { color: rgba(255,255,255,.55); font-size: 11px; }
.pilot-card > p { margin: 24px 0 0; color: rgba(255,255,255,.56); font-size: 13px; }

.section-roadmap { background: #f4f7fa; }
.roadmap { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.roadmap::before { content: ""; position: absolute; top: 28px; left: 4%; right: 4%; height: 2px; background: linear-gradient(90deg, var(--blue), var(--cyan)); }
.roadmap-item { position: relative; padding-top: 64px; }
.roadmap-dot { position: absolute; z-index: 2; top: 17px; left: 20px; width: 22px; height: 22px; background: #fff; border: 6px solid var(--blue); border-radius: 50%; box-shadow: 0 0 0 6px #dfeaf2; }
.roadmap-card { min-height: 320px; padding: 30px 25px; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.roadmap-card > span { color: var(--blue); font-size: 12px; font-weight: 900; }
.roadmap-card h3 { margin: 13px 0 24px; font-size: 20px; line-height: 1.45; }
.roadmap-card ul { margin: 0; padding: 0; list-style: none; }
.roadmap-card li { position: relative; padding: 9px 0 9px 16px; color: var(--muted); border-top: 1px solid #e8eef3; font-size: 12px; }
.roadmap-card li::before { content: ""; position: absolute; top: 18px; left: 0; width: 5px; height: 5px; background: var(--blue); border-radius: 50%; }

.section.revenue-section { padding: 0; color: #fff; background: var(--navy-950); }
.revenue-view-container { min-height: calc(100svh - 68px); padding: 72px 0; display: flex; flex-direction: column; justify-content: center; scroll-margin-top: 68px; }
.revenue-section .scenario-tabs { background: rgba(255,255,255,.08); }
.scenario-tab { color: rgba(255,255,255,.45); }
.scenario-tab[aria-selected="true"] { color: #001421; background: var(--cyan); }
.scenario-panel { margin-top: 34px; padding: 54px; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.12); border-radius: 18px; outline: none; }
.scenario-summary { display: flex; align-items: end; justify-content: space-between; gap: 30px; padding-bottom: 30px; border-bottom: 1px solid rgba(255,255,255,.11); }
.scenario-summary span { color: var(--cyan); font-size: 10px; font-weight: 900; letter-spacing: .18em; }
.scenario-summary strong { display: block; margin-top: 8px; font-size: 34px; }
.scenario-summary p { max-width: 390px; margin: 0; color: rgba(255,255,255,.52); font-size: 13px; text-align: right; }
.revenue-bars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 42px; align-items: end; height: 280px; }
.revenue-bar-item { height: 100%; display: grid; grid-template-rows: 1fr auto; gap: 13px; }
.bar-track { display: flex; align-items: flex-end; height: 100%; padding: 0 28px; border-bottom: 1px solid rgba(255,255,255,.2); }
.bar { position: relative; width: 100%; min-height: 18px; background: linear-gradient(180deg, var(--bar-color), color-mix(in srgb, var(--bar-color) 45%, #0a1625)); border-radius: 7px 7px 0 0; transition: height .55s ease; }
.bar strong { position: absolute; top: -35px; left: 0; right: 0; font-size: 17px; text-align: center; white-space: nowrap; }
.revenue-bar-item > span { color: rgba(255,255,255,.55); font-size: 12px; font-weight: 800; text-align: center; }
.scenario-disclaimer { margin: 22px 0 0; color: rgba(255,255,255,.42); font-size: 12px; }

.assets-section { background: #fff; }
.assets-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 80px; align-items: center; }
.assets-layout .section-heading { display: block; margin: 0; }
.assets-layout .section-heading .section-index { margin-bottom: 22px; }
.assets-layout .section-heading > p:last-of-type { margin-top: 24px; }
.assets-layout blockquote { margin: 42px 0 0; padding: 22px 0 22px 25px; color: #173654; border-left: 3px solid var(--blue); font-size: 16px; font-weight: 750; }
.asset-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.asset-item { min-height: 160px; padding: 24px 20px; display: flex; flex-direction: column; justify-content: space-between; background: #fff; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background .2s ease; }
.asset-item:hover { background: #f2f8fc; }
.asset-item span { color: var(--blue); font-size: 10px; font-weight: 900; }
.asset-item strong { font-size: 14px; line-height: 1.5; }

.decision-section { position: relative; min-height: 790px; display: flex; align-items: center; overflow: hidden; color: #fff; background: radial-gradient(circle at 18% 20%, #123c60, #07111f 55%, #040910); }
.decision-grid { opacity: .18; mask-image: none; }
.decision-section::before { content: "90"; position: absolute; right: -2vw; bottom: -17vw; color: rgba(255,255,255,.025); font-size: 43vw; font-weight: 950; line-height: 1; }
.decision-inner { position: relative; z-index: 2; width: min(var(--max), calc(100% - 56px)); margin: 0 auto; padding: 130px 0; display: grid; grid-template-columns: 1fr .78fr; gap: 90px; align-items: center; }
.decision-copy h2 { margin: 0; font-size: clamp(45px, 5.2vw, 76px); line-height: 1.13; letter-spacing: -.06em; }
.decision-copy em { color: var(--cyan); }
.decision-copy > p:last-child { max-width: 650px; margin: 28px 0 0; color: rgba(255,255,255,.58); font-size: 18px; }
.decision-list { margin: 0; padding: 0; list-style: none; counter-reset: decision; border-top: 1px solid rgba(255,255,255,.18); }
.decision-list li { counter-increment: decision; position: relative; padding: 20px 12px 20px 58px; border-bottom: 1px solid rgba(255,255,255,.18); font-size: 15px; font-weight: 750; }
.decision-list li::before { content: "0" counter(decision); position: absolute; left: 8px; color: var(--cyan); font-size: 11px; font-weight: 900; }
.back-top { position: absolute; z-index: 3; right: 32px; bottom: 28px; color: rgba(255,255,255,.4); font-size: 9px; font-weight: 900; letter-spacing: .16em; }

footer { padding: 52px max(28px, calc((100vw - var(--max)) / 2)) 28px; color: rgba(255,255,255,.56); background: #03070d; }
.footer-main { display: grid; grid-template-columns: 150px 1fr auto; gap: 28px; align-items: center; padding-bottom: 34px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-main img { width: 130px; filter: brightness(0) invert(1); opacity: .9; }
.footer-main strong, .footer-main span { display: block; }
.footer-main strong { color: #fff; font-size: 15px; }
.footer-main span { margin-top: 3px; font-size: 10px; letter-spacing: .12em; }
.footer-main p { margin: 0; max-width: 420px; font-size: 11px; text-align: right; }
.sources { display: grid; grid-template-columns: 150px 1fr; gap: 28px; padding: 24px 0; border-bottom: 1px solid rgba(255,255,255,.1); font-size: 11px; }
.sources > span { color: rgba(255,255,255,.35); font-weight: 800; }
#source-links { display: flex; flex-wrap: wrap; gap: 10px 22px; }
#source-links a { color: rgba(255,255,255,.66); text-decoration: underline; text-underline-offset: 4px; }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 24px; font-size: 10px; }

/* Readability: use solid black on light surfaces and solid white on dark surfaces. */
:root { --muted: #000; }
.section-heading > p:last-child,
.problem-card p,
.section-flow .section-heading > p:last-child,
.section-flow .flow-tab,
.section-flow .flow-intro p,
.section-flow .flow-step,
.mall-description,
.assumption-note,
.product-price small,
.product-purpose,
.product-card li,
.additional-revenue span:not(.micro-label),
.roadmap-card li,
.assets-layout blockquote { color: #000; }

.site-header nav a,
.hero-description,
.hero-stat span,
.ecosystem-node span,
.hero-scroll,
.heading-on-dark > p:last-child,
#formula-services span,
.service-card > p,
.service-card li,
.infra-list span,
.featured .product-purpose,
.featured li,
.market-stat small,
.target-tags span,
.pilot-goal span,
.pilot-card > p,
.scenario-tab,
.scenario-summary p,
.revenue-bar-item > span,
.scenario-disclaimer,
.decision-copy > p:last-child,
.back-top,
footer,
.sources > span,
#source-links a { color: #fff; }
.scenario-tab[aria-selected="true"] { color: #001421; }
.section-dark .section-index,
.market-section .section-index,
.revenue-section .section-index,
.decision-section .section-index,
.service-card .service-kicker,
.infra-label,
.revenue-section .scenario-summary span { color: #42c8ff; }
.service-card:nth-child(even) .service-kicker,
.revenue-section .micro-label { color: #ffd45c; }

@media (min-width: 851px) {
  .hero h1 { max-width: 640px; font-size: clamp(56px, 4.7vw, 72px); line-height: 1.11; letter-spacing: -.05em; }
  .brand span { font-size: 12px; }
  .site-header nav a { font-size: 15px; }
  .eyebrow, .section-index, .micro-label, .infra-label { font-size: 14px; }
  .button { font-size: 15px; }
  .hero-stat strong small { font-size: 15px; }
  .hero-stat span { font-size: 14px; }
  .chain-ring span { font-size: 10px; }
  .ecosystem-center small { font-size: 13px; }
  .ecosystem-node strong { font-size: 14px; }
  .ecosystem-node span { font-size: 11px; }
  .hero-scroll { font-size: 10px; }
  .problem-card .number { font-size: 14px; }
  .problem-card p { font-size: 16px; }
  .statement span { font-size: 12px; }
  #formula-services span { font-size: 13px; }
  .service-card .service-kicker { font-size: 12px; }
  .service-card > p { font-size: 15px; }
  .service-card li { font-size: 16px; }
  .infra-list span { font-size: 14px; }
  .flow-tab, .scenario-tab { font-size: 15px; }
  .flow-intro span, .section-flow .flow-intro span { font-size: 13px; }
  .flow-step, .section-flow .flow-step { font-size: 16px; }
  .flow-step strong { font-size: 11px; }
  .mall-image-label span { font-size: 11px; }
  .mall-steps li { font-size: 15px; }
  .mall-steps li::before { font-size: 13px; }
  .assumption-note { font-size: 15px; }
  .product-card.featured::before { font-size: 10px; }
  .product-price small { font-size: 13px; }
  .product-purpose { font-size: 14px; }
  .product-card li { font-size: 14px; }
  .ladder span { font-size: 13px; }
  .additional-revenue span:not(.micro-label) { font-size: 14px; }
  .market-stat small { font-size: 13px; }
  .target-tags span { font-size: 15px; }
  .pilot-goal span { font-size: 13px; }
  .pilot-card > p { font-size: 15px; }
  .roadmap-card > span { font-size: 14px; }
  .roadmap-card li { font-size: 14px; }
  .scenario-summary span { font-size: 12px; }
  .scenario-summary p { font-size: 15px; }
  .revenue-bar-item > span { font-size: 14px; }
  .scenario-disclaimer { font-size: 14px; }
  .asset-item span { font-size: 12px; }
  .asset-item strong { font-size: 16px; }
  .decision-list li::before { font-size: 13px; }
  .back-top { font-size: 11px; }
  .footer-main span { font-size: 12px; }
  .footer-main p, .sources { font-size: 13px; }
  .footer-bottom { font-size: 12px; }
}

@media (min-width: 1121px) {
  .hero-description span { display: block; }
}

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@keyframes slowRotate { to { transform: rotate(360deg); } }

@media (max-width: 1120px) {
  .hero-inner { grid-template-columns: 1fr; gap: 50px; padding-top: 160px; }
  .hero-copy { max-width: 850px; }
  .ecosystem { width: min(620px, 82vw); }
  .problem-grid { grid-template-columns: repeat(6, 1fr); border-bottom: 0; }
  .problem-card { grid-column: span 2; border-bottom: 1px solid var(--line); }
  .problem-card:nth-child(4) { grid-column: 2 / span 2; }
  .product-grid { grid-template-columns: repeat(6, 1fr); }
  .product-card { grid-column: span 2; }
  .product-card:nth-child(4) { grid-column: 2 / span 2; }
  .mall-container { grid-template-columns: 1fr; }
  .mall-visual { min-height: 620px; }
  .mall-content { padding: 72px 56px; }
  .flow-track { grid-template-columns: 1fr; }
  .flow-arrow { width: 1px; height: 26px; margin: 0 auto; }
  .flow-arrow::after { top: auto; bottom: 0; right: -3px; transform: rotate(135deg); }
  .section-flow .flow-arrow { width: 2px; height: 26px; margin: 0 auto; }
  .section-flow .flow-arrow::after { top: auto; bottom: 0; right: -3px; transform: rotate(135deg); }
}

@media (max-width: 850px) {
  body { font-size: 16px; }
  .site-header { height: 66px; padding: 0 20px; }
  .brand img { width: 88px; }
  .brand span { display: none; }
  .site-header nav { gap: 16px; }
  .site-header nav a { display: none; }
  .site-header .nav-cta { display: block; font-size: 11px; }
  .section.mall-section { padding: 62px 0; }
  .mall-container { width: min(100% - 36px, var(--max)); border-radius: 18px; }
  .hero-inner, .section-shell, .decision-inner { width: min(100% - 36px, var(--max)); }
  .hero-inner { padding-top: 120px; }
  .hero h1 { font-size: clamp(48px, 14vw, 72px); }
  .hero-description { font-size: 17px; }
  .hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); }
  .hero-stat { min-width: 0; padding: 0 14px; }
  .hero-stat strong { font-size: 27px; }
  .ecosystem { width: min(560px, 94vw); }
  .section { padding: 100px 0; }
  .section-heading { display: block; margin-bottom: 50px; }
  .section-heading .section-index { margin-bottom: 20px; }
  .section-heading h2 { margin-bottom: 22px; }
  .problem-grid { grid-template-columns: 1fr 1fr; }
  .problem-card, .problem-card:nth-child(4) { grid-column: auto; min-height: 260px; }
  .problem-card:nth-child(odd) { border-left: 0; }
  .problem-card h3 { margin-top: 45px; }
  .problem-card:last-child { grid-column: 1 / -1; }
  .statement { padding: 42px 34px; }
  .statement::before { display: none; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .service-card, .service-card:nth-child(4) { grid-column: auto; min-height: 330px; }
  .service-card:last-child { grid-column: auto; }
  .infra-panel { display: block; }
  .infra-list { justify-content: flex-start; margin-top: 20px; }
  .principle-flow { flex-wrap: wrap; }
  .principle-flow span { font-size: 15px; }
  .principle-flow i { flex-basis: 20px; width: 20px; }
  .flow-stage { padding: 32px 22px; }
  .flow-intro { display: block; }
  .flow-intro p { margin-top: 10px; text-align: left; }
  .mall-visual { min-height: 480px; }
  .product-grid { grid-template-columns: 1fr 1fr; }
  .product-card, .product-card:nth-child(4) { grid-column: auto; min-height: 340px; }
  .product-card:last-child { grid-column: 1 / -1; }
  .revenue-ladder { grid-template-columns: 1fr; }
  .ladder { flex-wrap: wrap; }
  .ladder span { flex: 1 1 30%; }
  .additional-revenue { align-items: flex-start; }
  .market-layout { grid-template-columns: 1fr; }
  .roadmap { grid-template-columns: 1fr 1fr; }
  .roadmap::before { display: none; }
  .roadmap-item { padding-top: 0; }
  .roadmap-dot { display: none; }
  .scenario-panel { padding: 38px 26px; }
  .assets-layout { grid-template-columns: 1fr; gap: 55px; }
  .decision-inner { grid-template-columns: 1fr; gap: 55px; }
  .footer-main { grid-template-columns: 110px 1fr; }
  .footer-main p { grid-column: 1 / -1; text-align: left; }
}

@media (max-width: 560px) {
  html { scroll-padding-top: 64px; }
  body { word-break: keep-all; }
  .hero-inner, .section-shell, .decision-inner { width: min(100% - 30px, var(--max)); }
  .hero-inner { padding: 110px 0 80px; }
  .hero h1 { font-size: 46px; line-height: 1.11; }
  .hero-description { font-size: 16px; line-height: 1.7; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-stats { margin-top: 42px; }
  .hero-stat { padding: 0 9px; }
  .hero-stat strong { font-size: 24px; }
  .hero-stat span { font-size: 10px; }
  .ecosystem { width: 360px; max-width: 100%; margin-top: 20px; }
  .ecosystem-center { width: 112px; height: 112px; }
  .ecosystem-center strong { font-size: 19px; }
  .ecosystem-mark { top: 10px; left: 10px; }
  .ecosystem-node { width: 98px; min-height: 52px; padding: 9px; }
  .ecosystem-node strong { font-size: 9px; }
  .ecosystem-node span { font-size: 7px; }
  .ecosystem-node:nth-child(2) { right: -1%; }
  .ecosystem-node:nth-child(3) { right: -4%; }
  .ecosystem-node:nth-child(5) { left: -4%; }
  .section { padding: 82px 0; }
  .section.mall-section { padding: 42px 0; }
  .mall-container { width: calc(100% - 24px); border-radius: 14px; }
  .section-heading h2, .mall-content h2 { font-size: 37px; }
  .section-heading > p:last-child { font-size: 15px; }
  .problem-grid { grid-template-columns: 1fr; }
  .problem-card, .problem-card:last-child { grid-column: auto; min-height: 220px; border-left: 0; }
  .statement { margin-top: 58px; padding: 34px 25px; }
  .statement p { font-size: 23px; }
  .formula { align-items: flex-start; }
  .formula > strong { font-size: 20px; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card, .service-card:last-child { grid-column: auto; min-height: 0; }
  .principle-flow { display: grid; grid-template-columns: 1fr; gap: 8px; margin-top: 42px; }
  .principle-flow span { width: 100%; font-size: 15px; }
  .principle-flow i { width: 1px; height: 16px; margin: auto; background: linear-gradient(var(--cyan), rgba(37,212,255,.15)); }
  .flow-switch, .scenario-tabs { display: flex; width: 100%; }
  .flow-tab, .scenario-tab { flex: 1; min-width: 0; padding: 10px 8px; }
  .flow-stage { margin-top: 22px; }
  .mall-visual { min-height: 360px; }
  .mall-image-label { left: 18px; bottom: 18px; }
  .mall-content { padding: 58px 24px; }
  .product-grid { grid-template-columns: 1fr; }
  .product-card, .product-card:last-child { grid-column: auto; min-height: 0; }
  .product-card.featured { transform: none; }
  .revenue-ladder { padding: 28px 22px; }
  .ladder { display: grid; grid-template-columns: 1fr; }
  .ladder span + span::before { content: "↓"; top: -17px; left: 50%; }
  .additional-revenue { display: block; padding: 24px 22px; }
  .additional-revenue > div { margin-top: 12px; }
  .market-stats { grid-template-columns: 1fr; }
  .market-stat { padding: 27px; }
  .target-card, .pilot-card { padding: 28px 22px; }
  .pilot-goals { gap: 5px; }
  .pilot-goal { padding: 12px 8px; }
  .pilot-goal strong { font-size: 23px; }
  .roadmap { grid-template-columns: 1fr; }
  .roadmap-card { min-height: 0; }
  .scenario-panel { padding: 30px 17px; }
  .scenario-summary { display: block; }
  .scenario-summary p { margin-top: 16px; text-align: left; }
  .revenue-bars { gap: 9px; height: 235px; }
  .bar-track { padding: 0 8px; }
  .bar strong { font-size: 13px; }
  .asset-grid { grid-template-columns: 1fr 1fr; }
  .asset-item { min-height: 135px; }
  .decision-section { min-height: auto; }
  .decision-inner { padding: 100px 0; }
  .decision-copy h2 { font-size: 42px; }
  .decision-copy > p:last-child { font-size: 16px; }
  footer { padding-left: 20px; padding-right: 20px; }
  .footer-main { grid-template-columns: 1fr; }
  .sources { grid-template-columns: 1fr; gap: 10px; }
  #source-links { flex-direction: column; }
  .footer-bottom { gap: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}