:root {
  --rd-ink: #0c1726;
  --rd-navy: #07182b;
  --rd-blue: #008fd3;
  --rd-blue-deep: #006da8;
  --rd-cyan: #70d9ff;
  --rd-gold: #e6a600;
  --rd-paper: #f5f8fb;
  --rd-line: rgba(12, 23, 38, .12);
  --rd-muted: #5b6877;
  --rd-radius: 28px;
  --rd-shadow: 0 28px 70px rgba(7, 24, 43, .10);
}

.rd-page {
  color: var(--rd-ink);
  background: #fff;
  overflow: hidden;
}

.rd-page *, .rd-page *::before, .rd-page *::after { box-sizing: border-box; }
.rd-page a { text-decoration: none; }
.skip-link { position: fixed; z-index: 100000; left: 16px; top: 12px; padding: 10px 16px; border-radius: 8px; background: #fff; color: #07182b; font-weight: 700; transform: translateY(-160%); transition: transform .2s ease; box-shadow: 0 8px 24px rgba(7,24,43,.18); }
.skip-link:focus { transform: translateY(0); }
.rd-shell { width: min(1220px, calc(100% - 48px)); margin: 0 auto; }
.rd-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  color: var(--rd-blue-deep);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: .17em;
  text-transform: uppercase;
}
.rd-kicker::before { content: ""; width: 28px; height: 2px; background: currentColor; }
.rd-title {
  max-width: 860px;
  margin: 0;
  color: var(--rd-ink);
  font-size: clamp(38px, 5vw, 72px);
  line-height: .99;
  letter-spacing: -.045em;
  font-weight: 650;
}
.rd-lead { max-width: 760px; margin: 24px 0 0; color: var(--rd-muted); font-size: clamp(18px, 2vw, 22px); line-height: 1.65; }
.rd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 52px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 750;
  letter-spacing: .06em;
  text-transform: uppercase;
  transition: transform .25s ease, background .25s ease, color .25s ease, border-color .25s ease;
}
.rd-btn:hover { transform: translateY(-2px); }
.rd-hero-actions .rd-btn:not(.rd-btn-dark) { border-color: rgba(12,23,38,.22); color: var(--rd-ink); background: rgba(255,255,255,.55); }
.rd-hero-actions .rd-btn:not(.rd-btn-dark):hover { border-color: var(--rd-blue-deep); color: var(--rd-blue-deep); background: #fff; }
.rd-btn-dark { background: var(--rd-ink); color: #fff; }
.rd-btn-dark:hover { background: var(--rd-blue-deep); color: #fff; }
.rd-btn-light { background: #fff; color: var(--rd-ink); }
.rd-btn-light:hover { background: var(--rd-cyan); color: var(--rd-ink); }
.rd-btn-outline { border-color: rgba(255,255,255,.38); color: #fff; }
.rd-btn-outline:hover { border-color: #fff; background: #fff; color: var(--rd-ink); }

.rd-hero {
  position: relative;
  min-height: 780px;
  padding: 45px 0 96px;
  background:
    radial-gradient(circle at 78% 18%, rgba(112,217,255,.18), transparent 27%),
    radial-gradient(circle at 15% 78%, rgba(230,166,0,.10), transparent 24%),
    linear-gradient(135deg, #f8fbfd 0%, #eff6fa 55%, #e6f1f7 100%);
}
.rd-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(7,24,43,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(7,24,43,.045) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: linear-gradient(to right, transparent, #000 20%, #000 80%, transparent);
}
.rd-hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(380px, .94fr); gap: 72px; align-items: center; }
.rd-hero h1 { margin: 0; max-width: 760px; color: var(--rd-ink); font-size: clamp(54px, 7vw, 104px); line-height: .9; letter-spacing: -.065em; font-weight: 650; }
.rd-hero h1 span { display: block; color: var(--rd-blue-deep); }
.rd-hero-message { max-width: 720px; margin: 30px 0 0; color: #25384a; font-size: clamp(22px, 2.2vw, 31px); line-height: 1.28; font-weight: 520; letter-spacing: -.02em; }
.rd-hero-copy { max-width: 700px; margin: 22px 0 0; color: var(--rd-muted); font-size: 17px; line-height: 1.75; }
.rd-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.rd-hero-visual { position: relative; min-height: 540px; display: grid; place-items: center; }
.rd-orbit {
  position: relative;
  width: min(500px, 100%);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(0,109,168,.24);
  background: radial-gradient(circle, rgba(255,255,255,.96) 0 12%, rgba(0,143,211,.11) 13% 13.5%, rgba(255,255,255,.55) 14% 31%, rgba(0,143,211,.13) 31.5% 32%, transparent 32.5%);
  box-shadow: inset 0 0 0 52px rgba(255,255,255,.25), var(--rd-shadow);
}
.rd-orbit::before, .rd-orbit::after { content: ""; position: absolute; inset: 14%; border: 1px dashed rgba(0,109,168,.28); border-radius: 50%; transform: rotate(-18deg) scaleY(.55); }
.rd-orbit::after { inset: 5%; transform: rotate(58deg) scaleY(.42); }
.rd-core { position: absolute; inset: 50% auto auto 50%; width: 116px; height: 116px; transform: translate(-50%,-50%); border-radius: 24px; background: linear-gradient(145deg, var(--rd-navy), #153a60); box-shadow: 0 18px 42px rgba(7,24,43,.28); display: grid; place-items: center; color: #fff; z-index: 2; }
.rd-core svg { width: 58px; height: 58px; }
.rd-node { position: absolute; z-index: 3; width: 116px; min-height: 74px; padding: 13px 14px; border: 1px solid rgba(12,23,38,.10); border-radius: 18px; background: rgba(255,255,255,.91); box-shadow: 0 16px 36px rgba(7,24,43,.12); backdrop-filter: blur(12px); font-size: 11px; line-height: 1.35; font-weight: 760; letter-spacing: .08em; text-transform: uppercase; }
.rd-node i { display: block; margin-bottom: 8px; color: var(--rd-blue-deep); font-size: 19px; }
.rd-node-1 { top: 7%; left: 3%; }
.rd-node-2 { top: 14%; right: -3%; }
.rd-node-3 { bottom: 10%; right: 0; }
.rd-node-4 { bottom: 5%; left: 4%; }
.rd-hero-index { position: absolute; right: 0; bottom: -14px; display: grid; grid-template-columns: repeat(3, 1fr); width: min(430px, 90%); border-radius: 18px; overflow: hidden; background: var(--rd-navy); color: #fff; box-shadow: var(--rd-shadow); }
.rd-hero-index span { padding: 16px 14px; border-right: 1px solid rgba(255,255,255,.13); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }
.rd-hero-index span:last-child { border: 0; }

.rd-intro { padding: 120px 0; }
.rd-intro-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; align-items: start; }
.rd-intro-note { position: sticky; top: 130px; padding: 32px; border-radius: var(--rd-radius); background: var(--rd-ink); color: #fff; }
.rd-intro-note p { margin: 0; color: rgba(255,255,255,.7); line-height: 1.7; }
.rd-intro-note strong { display: block; margin-bottom: 18px; color: var(--rd-cyan); font-size: 13px; letter-spacing: .12em; text-transform: uppercase; }
.rd-intro-copy p { margin: 0 0 20px; color: var(--rd-muted); font-size: 19px; line-height: 1.78; }
.rd-intro-copy p:first-child { color: var(--rd-ink); font-size: 25px; line-height: 1.55; font-weight: 520; }

.rd-areas { padding: 120px 0; background: var(--rd-paper); }
.rd-section-head { display: flex; justify-content: space-between; gap: 50px; align-items: end; margin-bottom: 62px; }
.rd-section-head p { max-width: 520px; margin: 0; color: var(--rd-muted); font-size: 17px; line-height: 1.7; }
.rd-area-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.rd-area-card { position: relative; min-height: 420px; padding: 42px; border: 1px solid var(--rd-line); border-radius: var(--rd-radius); background: #fff; overflow: hidden; transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease; }
.rd-area-card:hover { transform: translateY(-6px); border-color: rgba(0,143,211,.35); box-shadow: var(--rd-shadow); }
.rd-area-card::after { content: attr(data-index); position: absolute; right: 26px; top: 18px; color: rgba(12,23,38,.07); font-size: 92px; line-height: 1; font-weight: 760; }
.rd-area-icon { width: 56px; height: 56px; display: grid; place-items: center; border-radius: 17px; background: #eaf7fd; color: var(--rd-blue-deep); font-size: 23px; }
.rd-area-card h3 { position: relative; z-index: 1; max-width: 480px; margin: 30px 0 14px; color: var(--rd-ink); font-size: clamp(27px, 3vw, 38px); line-height: 1.08; letter-spacing: -.035em; }
.rd-area-card > p { position: relative; z-index: 1; max-width: 570px; margin: 0; color: var(--rd-muted); font-size: 16px; line-height: 1.68; }
.rd-tags { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 8px; margin: 28px 0 0; padding: 0; list-style: none; }
.rd-tags li { padding: 7px 11px; border: 1px solid var(--rd-line); border-radius: 999px; color: #405064; font-size: 11px; line-height: 1.2; font-weight: 650; }

.rd-bridge { padding: 110px 0; background: #fff; }
.rd-bridge-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, .75fr); gap: 70px; align-items: center; }
.rd-bridge-visual { position: relative; min-height: 460px; border-radius: 32px; background: linear-gradient(145deg, #091b30, #0b4169); overflow: hidden; box-shadow: var(--rd-shadow); }
.rd-bridge-visual::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(circle at center, rgba(112,217,255,.95) 0 2px, transparent 3px); background-size: 43px 43px; opacity: .35; }
.rd-bridge-visual::after { content: ""; position: absolute; inset: 15%; border: 1px solid rgba(112,217,255,.34); border-radius: 50%; box-shadow: 0 0 0 54px rgba(112,217,255,.04), 0 0 0 108px rgba(112,217,255,.025); }
.rd-bridge-label { position: absolute; z-index: 2; left: 32px; right: 32px; bottom: 30px; display: flex; align-items: end; justify-content: space-between; color: #fff; }
.rd-bridge-label strong { font-size: 30px; line-height: 1.05; letter-spacing: -.03em; }
.rd-bridge-label span { color: var(--rd-cyan); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; }
.rd-bridge-copy h2 { margin: 0; color: var(--rd-ink); font-size: clamp(38px, 4.5vw, 65px); line-height: 1; letter-spacing: -.05em; }
.rd-bridge-copy p { margin: 25px 0 0; color: var(--rd-muted); font-size: 18px; line-height: 1.75; }

.rd-process { padding: 120px 0; background: var(--rd-navy); color: #fff; }
.rd-process .rd-title { color: #fff; }
.rd-process .rd-kicker { color: var(--rd-cyan); }
.rd-process .rd-section-head p { color: rgba(255,255,255,.62); }
.rd-process-list { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; margin-top: 68px; padding: 0; list-style: none; }
.rd-process-list::before { content: ""; position: absolute; left: 7%; right: 7%; top: 29px; height: 1px; background: linear-gradient(90deg, transparent, rgba(112,217,255,.55), transparent); }
.rd-process-item { position: relative; padding: 0 20px; }
.rd-process-no { position: relative; z-index: 2; width: 58px; height: 58px; display: grid; place-items: center; border: 1px solid rgba(112,217,255,.45); border-radius: 50%; background: var(--rd-navy); color: var(--rd-cyan); font-size: 13px; font-weight: 750; }
.rd-process-item h3 { margin: 26px 0 12px; color: #fff; font-size: 20px; line-height: 1.25; letter-spacing: -.02em; }
.rd-process-item p { margin: 0; color: rgba(255,255,255,.58); font-size: 14px; line-height: 1.65; }
.rd-method-note { max-width: 780px; margin: 54px 0 0; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.5); font-size: 13px; line-height: 1.7; }

.rd-collab { padding: 120px 0; }
.rd-collab-card { position: relative; overflow: hidden; display: grid; grid-template-columns: 1fr .8fr; min-height: 540px; border-radius: 34px; background: linear-gradient(120deg, #eaf5fa 0%, #f8fbfd 52%, #fff 100%); box-shadow: var(--rd-shadow); }
.rd-collab-copy { position: relative; z-index: 2; padding: clamp(44px, 7vw, 88px); }
.rd-collab-copy h2 { max-width: 720px; margin: 0; color: var(--rd-ink); font-size: clamp(42px, 5vw, 72px); line-height: .98; letter-spacing: -.052em; }
.rd-collab-copy p { max-width: 720px; margin: 28px 0 0; color: var(--rd-muted); font-size: 18px; line-height: 1.75; }
.rd-collab-art { position: relative; overflow: hidden; min-height: 360px; background: #0a2742; }
.rd-collab-art img { width: 100%; height: 100%; object-fit: cover; opacity: .58; mix-blend-mode: luminosity; }
.rd-collab-art::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, #f8fbfd 0%, transparent 28%), linear-gradient(180deg, transparent, rgba(7,24,43,.62)); }
.rd-collab-art span { position: absolute; z-index: 2; right: 28px; bottom: 24px; color: rgba(255,255,255,.72); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; }

.rd-cta { padding: 0 0 120px; }
.rd-cta-card { position: relative; overflow: hidden; min-height: 470px; padding: clamp(44px, 7vw, 90px); border-radius: 34px; background: linear-gradient(135deg, #07182b 0%, #0a3358 68%, #007daf 100%); color: #fff; }
.rd-cta-card::before { content: ""; position: absolute; width: 520px; height: 520px; right: -160px; top: -240px; border: 1px solid rgba(255,255,255,.14); border-radius: 50%; box-shadow: 0 0 0 72px rgba(255,255,255,.035), 0 0 0 144px rgba(255,255,255,.025); }
.rd-cta-card h2 { position: relative; z-index: 1; max-width: 880px; margin: 0; color: #fff; font-size: clamp(44px, 6vw, 82px); line-height: .96; letter-spacing: -.055em; }
.rd-cta-bottom { position: relative; z-index: 1; display: flex; justify-content: space-between; align-items: end; gap: 35px; margin-top: 68px; }
.rd-cta-bottom p { max-width: 650px; margin: 0; color: rgba(255,255,255,.66); font-size: 17px; line-height: 1.7; }

.rd-reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.rd-reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1100px) {
  .rd-hero-grid, .rd-intro-grid, .rd-bridge-grid { grid-template-columns: 1fr; }
  .rd-hero { padding-top: 40px; }
  .rd-hero-visual { min-height: 500px; }
  .rd-intro-note { position: static; }
  .rd-process-list { grid-template-columns: repeat(2, 1fr); gap: 38px 18px; }
  .rd-process-list::before { display: none; }
  .rd-collab-card { grid-template-columns: 1fr; }
  .rd-collab-art { min-height: 320px; }
}

@media (max-width: 767px) {
  .rd-shell { width: min(100% - 30px, 1220px); }
  .rd-hero { min-height: auto; padding: 34px 0 76px; }
  .rd-hero h1 { font-size: clamp(50px, 15vw, 76px); }
  .rd-hero-message { font-size: 22px; }
  .rd-hero-visual { min-height: 390px; margin-top: 10px; }
  .rd-orbit { width: 340px; max-width: 92%; }
  .rd-node { width: 96px; min-height: 64px; padding: 10px; font-size: 9px; }
  .rd-node i { margin-bottom: 5px; font-size: 16px; }
  .rd-core { width: 86px; height: 86px; }
  .rd-core svg { width: 44px; height: 44px; }
  .rd-hero-index { position: relative; right: auto; bottom: auto; width: 100%; margin-top: 24px; }
  .rd-intro, .rd-areas, .rd-bridge, .rd-process, .rd-collab { padding: 82px 0; }
  .rd-cta { padding-bottom: 82px; }
  .rd-section-head { display: block; margin-bottom: 40px; }
  .rd-section-head p { margin-top: 24px; }
  .rd-area-grid { grid-template-columns: 1fr; }
  .rd-area-card { min-height: auto; padding: 30px 26px; }
  .rd-bridge-visual { min-height: 380px; }
  .rd-process-list { grid-template-columns: 1fr; }
  .rd-process-item { display: grid; grid-template-columns: 58px 1fr; column-gap: 18px; padding: 0; }
  .rd-process-item h3 { margin: 3px 0 8px; }
  .rd-process-item p { grid-column: 2; }
  .rd-collab-copy { padding: 42px 28px; }
  .rd-collab-art::after { background: linear-gradient(180deg, #f8fbfd 0%, transparent 28%), linear-gradient(180deg, transparent, rgba(7,24,43,.6)); }
  .rd-cta-card { padding: 46px 28px; }
  .rd-cta-bottom { display: block; margin-top: 44px; }
  .rd-cta-bottom .rd-btn { margin-top: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  .rd-page *, .rd-page *::before, .rd-page *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
  .rd-reveal { opacity: 1; transform: none; }
}