:root {
  --paper: #f4f7fc;
  --paper-deep: #e8effa;
  --ink: #090d16;
  --muted: #68758b;
  --line: rgba(16, 37, 73, 0.15);
  --dark: #080b12;
  --dark-soft: #101725;
  --accent: #2563eb;
  --accent-bright: #4f8cff;
  --accent-pale: #dce8ff;
  --white: #f7faff;
  font-family: "Inter", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: linear-gradient(180deg, #f7f9fd 0, var(--paper) 28%, #eef3fa 100%); color: var(--ink); }
a { color: inherit; }
.site-header, main > section, footer { width: min(1380px, calc(100% - 56px)); margin-inline: auto; }

.site-header {
  height: 88px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.site-header::after { content: ""; position: absolute; left: 0; bottom: -1px; width: 90px; height: 1px; background: var(--accent); }
.wordmark, .footer-brand { display: flex; align-items: baseline; gap: 12px; text-decoration: none; }
.wordmark strong, .footer-brand strong { font: 700 15px/1 "Inter", "Helvetica Neue", Arial, sans-serif; letter-spacing: -.02em; }
.wordmark span, .footer-brand span { color: var(--muted); font-size: 11px; }
.site-header nav { display: flex; gap: 32px; }
.site-header nav a { padding: 12px 0; color: var(--muted); font-size: 12px; text-decoration: none; transition: color .2s ease; }
.site-header nav a:hover { color: var(--ink); }
.system-entry { justify-self: end; display: flex; align-items: baseline; gap: 9px; text-decoration: none; }
.system-entry span { color: var(--accent); font-size: 12px; font-weight: 600; }
.system-entry small { color: var(--muted); font-size: 9px; letter-spacing: .06em; }

.hero { min-height: 720px; padding: 86px 0 72px; display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(48px, 8vw, 128px); align-items: center; position: relative; isolation: isolate; }
.hero::before { content: ""; position: absolute; z-index: -2; width: 620px; height: 620px; right: 18%; top: 5%; border-radius: 50%; background: radial-gradient(circle, rgba(37,99,235,.12) 0, rgba(37,99,235,.035) 38%, transparent 70%); filter: blur(8px); }
.hero-copy, .intelligence-panel { position: relative; z-index: 2; }
.hero-particles { position: absolute; z-index: -1; inset: 24px -20px 30px; overflow: hidden; pointer-events: none; }
.hero-particles span { position: absolute; width: 3px; height: 3px; border-radius: 50%; background: var(--accent); opacity: .22; box-shadow: 0 0 9px rgba(37,99,235,.7); animation: particle-drift 8s ease-in-out infinite alternate; }
.hero-particles span:nth-child(1){left:4%;top:18%;animation-delay:-2s}.hero-particles span:nth-child(2){left:11%;top:71%;animation-delay:-5s}.hero-particles span:nth-child(3){left:18%;top:43%;animation-delay:-1s}.hero-particles span:nth-child(4){left:29%;top:12%;animation-delay:-6s}.hero-particles span:nth-child(5){left:34%;top:82%;animation-delay:-3s}.hero-particles span:nth-child(6){left:42%;top:28%;animation-delay:-7s}.hero-particles span:nth-child(7){left:48%;top:64%;animation-delay:-4s}.hero-particles span:nth-child(8){left:54%;top:9%;animation-delay:-1.5s}.hero-particles span:nth-child(9){left:59%;top:88%;animation-delay:-5.5s}.hero-particles span:nth-child(10){left:64%;top:37%;animation-delay:-2.5s}.hero-particles span:nth-child(11){left:69%;top:72%;animation-delay:-6.5s}.hero-particles span:nth-child(12){left:74%;top:17%;animation-delay:-3.5s}.hero-particles span:nth-child(13){left:79%;top:52%;animation-delay:-.5s}.hero-particles span:nth-child(14){left:84%;top:84%;animation-delay:-4.5s}.hero-particles span:nth-child(15){left:89%;top:27%;animation-delay:-7.5s}.hero-particles span:nth-child(16){left:94%;top:65%;animation-delay:-2s}.hero-particles span:nth-child(17){left:25%;top:62%;animation-delay:-6s}.hero-particles span:nth-child(18){left:87%;top:7%;animation-delay:-3s}
.kicker, .section-index { margin: 0; font: 600 10px/1.3 "Inter", "Helvetica Neue", Arial, sans-serif; letter-spacing: .18em; }
.kicker { margin-bottom: 36px; color: var(--accent); }
.kicker span { margin-left: 12px; color: var(--muted); }
h1 { margin: 0; font: 600 clamp(54px, 6.4vw, 100px)/.95 "Inter", "Helvetica Neue", "PingFang SC", sans-serif; letter-spacing: -.065em; }
h1 em { color: var(--accent); font-style: normal; }
.hero-bottom { max-width: 650px; margin-top: 46px; display: grid; grid-template-columns: 1fr auto; gap: 42px; align-items: end; }
.hero-bottom > p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.9; }
.text-link { white-space: nowrap; padding-bottom: 5px; border-bottom: 1px solid var(--accent); color: var(--accent); font-size: 12px; font-weight: 600; text-decoration: none; }

.intelligence-panel { min-height: 560px; display: grid; grid-template-rows: auto 1fr auto; color: var(--white); background: linear-gradient(145deg, #0b101b, var(--dark) 65%); border: 1px solid rgba(79,140,255,.22); box-shadow: 0 42px 110px rgba(10,31,70,.24), 0 0 60px rgba(37,99,235,.08); }
.panel-head { height: 64px; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(255,255,255,.13); font: 600 9px/1 "Inter", "Helvetica Neue", Arial, sans-serif; letter-spacing: .14em; }
.live-status { display: flex; align-items: center; gap: 8px; color: #c4c9c8; }
.live-status::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent-bright); box-shadow: 0 0 14px rgba(79,140,255,.9); }
.signal-field { min-height: 415px; position: relative; overflow: hidden; background-image: linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px); background-size: 25% 25%; }
.axis-label { position: absolute; z-index: 2; color: #6d7278; font: 500 8px/1 "Inter", "Helvetica Neue", Arial, sans-serif; letter-spacing: .15em; }
.axis-top { top: 15px; right: 18px; }
.axis-side { left: 14px; bottom: 17px; transform: rotate(-90deg); transform-origin: left bottom; }
.crosshair { position: absolute; left: 50%; top: 50%; width: 54px; height: 54px; border: 1px solid rgba(79,140,255,.6); border-radius: 50%; transform: translate(-50%,-50%); box-shadow: 0 0 0 26px rgba(37,99,235,.06), 0 0 50px rgba(37,99,235,.15); }
.crosshair::before, .crosshair::after { content: ""; position: absolute; background: rgba(79,140,255,.65); }
.crosshair::before { width: 78px; height: 1px; left: -13px; top: 26px; }
.crosshair::after { width: 1px; height: 78px; top: -13px; left: 26px; }
.data-line { position: absolute; height: 1px; background: linear-gradient(90deg, transparent, rgba(79,140,255,.85), transparent); transform-origin: left; }
.line-one { width: 58%; left: 12%; top: 31%; transform: rotate(9deg); }
.line-two { width: 54%; left: 38%; top: 62%; transform: rotate(-16deg); }
.line-three { width: 48%; left: 21%; top: 75%; transform: rotate(-43deg); }
.data-point { position: absolute; width: 7px; height: 7px; border: 1px solid var(--accent-bright); border-radius: 50%; background: var(--dark); box-shadow: 0 0 0 5px rgba(37,99,235,.11), 0 0 14px rgba(79,140,255,.45); }
.point-one { left: 22%; top: 33%; }.point-two { right: 17%; top: 48%; }.point-three { left: 34%; bottom: 20%; }
.scan { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 0, rgba(37,99,235,.06) 48%, rgba(79,140,255,.28) 50%, rgba(37,99,235,.06) 52%, transparent 100%); transform: translateY(-100%); animation: scan 6s ease-in-out infinite; }
.signal-field p { position: absolute; margin: 0; color: #6e7379; font: 500 8px/1 "Inter", "Helvetica Neue", Arial, sans-serif; letter-spacing: .1em; }
.signal-field p span { color: #d3d5d3; }
.signal-field p:nth-of-type(1) { left: 7%; top: 24%; }.signal-field p:nth-of-type(2) { right: 6%; top: 39%; }.signal-field p:nth-of-type(3) { left: 55%; bottom: 13%; }
.panel-foot { min-height: 80px; display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid rgba(255,255,255,.13); }
.panel-foot div { padding: 18px 20px; border-right: 1px solid rgba(255,255,255,.13); }
.panel-foot div:last-child { border: 0; }
.panel-foot small, .panel-foot strong { display: block; }
.panel-foot small { color: #666c72; font: 500 8px/1 "Inter", "Helvetica Neue", Arial, sans-serif; letter-spacing: .15em; }
.panel-foot strong { margin-top: 10px; font-size: 12px; font-weight: 500; }

.manifesto { padding: 150px 0 140px; display: grid; grid-template-columns: .42fr 1.45fr .6fr; gap: 46px; border-top: 1px solid var(--line); }
.section-index { color: var(--muted); }
.manifesto blockquote { margin: 0; font-size: clamp(34px, 4.4vw, 66px); font-weight: 500; line-height: 1.18; letter-spacing: -.05em; }
.manifesto > p:last-child { align-self: end; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.9; }

.capabilities { padding: 130px 0; display: grid; grid-template-columns: .72fr 1.28fr; gap: clamp(50px, 9vw, 150px); border-top: 1px solid var(--line); }
.section-intro { position: sticky; top: 40px; align-self: start; }
.section-intro h2, .method h2, .about h2 { margin: 26px 0 0; font-size: clamp(38px, 4.4vw, 64px); line-height: 1.08; letter-spacing: -.055em; }
.section-intro > p:last-child { max-width: 320px; margin: 28px 0 0; color: var(--muted); font-size: 13px; }
.capability-list { border-top: 1px solid var(--line); }
.capability-list article { min-height: 180px; padding: 32px 0; display: grid; grid-template-columns: 60px 1fr auto; gap: 24px; border-bottom: 1px solid var(--line); transition: padding .25s ease, background .25s ease; }
.capability-list article:hover { padding-inline: 20px; background: linear-gradient(90deg, rgba(37,99,235,.08), rgba(37,99,235,.02)); }
.capability-list .number { color: var(--muted); font: 500 10px/1.3 "Inter", "Helvetica Neue", Arial, sans-serif; }
.capability-list h3 { margin: 0 0 14px; font-size: 23px; font-weight: 500; letter-spacing: -.03em; }
.capability-list p { max-width: 510px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.85; }
.capability-list small { color: var(--muted); font: 500 8px/1 "Inter", "Helvetica Neue", Arial, sans-serif; letter-spacing: .13em; }

.method { width: 100%; max-width: none; padding: 140px max(28px, calc((100% - 1380px)/2)); color: var(--white); background: var(--dark); }
.method-title { display: grid; grid-template-columns: .42fr 1fr; margin-bottom: 100px; }
.method-title .section-index { color: #6d7278; }
.method h2 { margin-top: 0; }
.method-steps { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4,1fr); list-style: none; border-top: 1px solid rgba(255,255,255,.18); }
.method-steps li { min-height: 240px; padding: 24px 28px 28px 0; border-right: 1px solid rgba(255,255,255,.18); }
.method-steps li + li { padding-left: 28px; }
.method-steps li:last-child { border: 0; }
.method-steps span { display: block; margin-bottom: 70px; color: var(--accent-bright); font: 500 10px/1 "Inter", "Helvetica Neue", Arial, sans-serif; }
.method-steps strong { font-size: 22px; font-weight: 500; }
.method-steps p { margin: 16px 0 0; color: #858a8f; font-size: 12px; line-height: 1.8; }

.about { padding: 150px 0; display: grid; grid-template-columns: 1fr 1fr; gap: clamp(60px, 12vw, 190px); }
.about-detail > p { margin: 35px 0 80px; color: #45494b; font-size: clamp(17px, 1.7vw, 23px); line-height: 1.75; letter-spacing: -.02em; }
.about-detail dl { margin: 0; display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid var(--line); }
.about-detail dl div { padding: 20px 0; }
.about-detail dt { color: var(--muted); font-size: 9px; }
.about-detail dd { margin: 12px 0 0; font-size: 16px; font-weight: 600; }

.closing { min-height: 280px; padding: 40px 0; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 30px; border-top: 1px solid var(--line); }
.closing p { margin: 0; color: var(--muted); font: 500 9px/1 "Inter", "Helvetica Neue", Arial, sans-serif; letter-spacing: .16em; }
.closing p:last-child { text-align: right; }
.closing strong { font-size: clamp(31px, 4.5vw, 68px); letter-spacing: -.055em; }

footer { min-height: 110px; display: flex; align-items: center; gap: 28px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; }
footer p { margin: 0 0 0 auto; }
.icp-link { text-decoration: none; }
.icp-link:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }
a:focus-visible { outline: 2px solid #4b70ff; outline-offset: 4px; }

@keyframes scan { 0%, 15% { transform: translateY(-100%); } 70%, 100% { transform: translateY(100%); } }
@keyframes particle-drift { 0% { transform: translate3d(0,0,0) scale(.8); opacity: .12; } 50% { opacity: .42; } 100% { transform: translate3d(14px,-22px,0) scale(1.3); opacity: .2; } }

@media (max-width: 900px) {
  .site-header, main > section, footer { width: calc(100% - 32px); }
  .site-header { grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 62px; }
  .hero-copy { padding-bottom: 20px; }
  .intelligence-panel { min-height: 500px; }
  .manifesto { grid-template-columns: 1fr; gap: 34px; padding: 100px 0; }
  .manifesto > p:last-child { max-width: 560px; }
  .capabilities { grid-template-columns: 1fr; padding: 100px 0; }
  .section-intro { position: static; }
  .method { width: 100%; padding: 100px 16px; }
  .method-title { grid-template-columns: 1fr; gap: 28px; margin-bottom: 70px; }
  .method-steps { grid-template-columns: repeat(2,1fr); }
  .method-steps li:nth-child(2) { border-right: 0; }
  .method-steps li:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,.18); }
  .method-steps li:nth-child(3) { padding-left: 0; }
  .about { grid-template-columns: 1fr; padding: 100px 0; }
}

@media (max-width: 560px) {
  .site-header { height: 72px; }
  .wordmark span { display: none; }
  .system-entry small { display: none; }
  .hero { min-height: auto; gap: 50px; padding: 52px 0 72px; }
  h1 { font-size: clamp(49px, 15vw, 68px); }
  .hero-bottom { grid-template-columns: 1fr; gap: 28px; }
  .hero-bottom .text-link { justify-self: start; }
  .intelligence-panel { min-height: 440px; }
  .signal-field { min-height: 320px; }
  .panel-foot div { padding: 15px 11px; }
  .panel-foot strong { font-size: 10px; }
  .manifesto { padding: 86px 0; }
  .capability-list article { grid-template-columns: 34px 1fr; }
  .capability-list small { display: none; }
  .capability-list article:hover { padding-inline: 0; background: transparent; }
  .method-steps { grid-template-columns: 1fr; }
  .method-steps li, .method-steps li + li { min-height: 190px; padding: 25px 0; border-right: 0; border-top: 1px solid rgba(255,255,255,.18); }
  .method-steps li:first-child { border-top: 0; }
  .method-steps span { margin-bottom: 46px; }
  .about-detail > p { margin-bottom: 56px; }
  .closing { min-height: 230px; grid-template-columns: 1fr; text-align: center; }
  .closing p:last-child { text-align: center; }
  footer { align-items: flex-start; flex-direction: column; gap: 12px; padding: 28px 0; }
  footer p { margin: 10px 0 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .scan { animation: none; }
  .hero-particles span { animation: none; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}