:root {
  --bg: #07090d;
  --surface: #0c1016;
  --surface-2: #10161e;
  --line: rgba(255, 255, 255, 0.1);
  --line-bright: rgba(125, 249, 214, 0.32);
  --text: #f2f6f5;
  --muted: #8e9aa5;
  --cyan: #7df9d6;
  --blue: #64a8ff;
  --display: "Arial Narrow", "Aptos Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  --body: Inter, "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px),
    var(--bg);
  background-size: 72px 72px;
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 100; padding: 12px 18px; background: var(--cyan); color: #04110e; transition: top .2s; }
.skip-link:focus { top: 16px; }

.ambient { position: fixed; border-radius: 50%; filter: blur(110px); pointer-events: none; z-index: -1; opacity: .13; }
.ambient-one { width: 520px; height: 520px; background: var(--blue); left: -340px; top: 30%; }
.ambient-two { width: 460px; height: 460px; background: var(--cyan); right: -330px; top: 7%; }

.site-header {
  position: fixed;
  z-index: 30;
  top: 0;
  left: 0;
  right: 0;
  height: 84px;
  padding: 0 clamp(24px, 5vw, 80px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid transparent;
  transition: background .3s, border-color .3s, height .3s;
}
.site-header.scrolled { height: 68px; background: rgba(7, 9, 13, .78); border-color: var(--line); backdrop-filter: blur(18px); }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--line-bright); font: 700 12px var(--mono); color: var(--cyan); background: rgba(125,249,214,.04); }
.brand-name { font: 700 13px var(--mono); letter-spacing: .14em; }
.brand-dim { color: var(--muted); }
.site-nav { display: flex; gap: 38px; align-items: center; }
.site-nav a { position: relative; color: #aab4bc; font-size: 13px; letter-spacing: .08em; }
.site-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -9px; height: 1px; background: var(--cyan); transition: right .3s; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--text); }
.site-nav a:hover::after, .site-nav a.active::after { right: 0; }
.menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); background: transparent; color: white; }

.hero {
  position: relative;
  min-height: 100vh;
  padding: 150px clamp(24px, 8vw, 140px) 90px;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, .75fr);
  align-items: center;
  gap: clamp(60px, 8vw, 130px);
  border-bottom: 1px solid var(--line);
  isolation: isolate;
}
.hero-grid { position: absolute; inset: 0; overflow: hidden; z-index: -1; }
.hero-grid::before { content: ""; position: absolute; width: 850px; height: 850px; right: -160px; top: -170px; border: 1px solid rgba(125,249,214,.07); border-radius: 50%; box-shadow: 0 0 0 130px rgba(125,249,214,.025), 0 0 0 260px rgba(125,249,214,.015); }
.hero-grid::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--bg) 0%, transparent 42%), linear-gradient(0deg, var(--bg) 0%, transparent 28%); }
.eyebrow { display: flex; align-items: center; gap: 12px; margin-bottom: 28px; color: var(--cyan); font: 600 11px var(--mono); letter-spacing: .18em; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 5px rgba(125,249,214,.1), 0 0 18px var(--cyan); }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 30px; max-width: 820px; font: 700 clamp(58px, 7vw, 112px)/.96 var(--display); letter-spacing: -.055em; }
.gradient-text { color: transparent; -webkit-text-stroke: 1px rgba(125,249,214,.7); background: linear-gradient(100deg, var(--cyan), var(--blue)); background-clip: text; -webkit-background-clip: text; }
.hero-copy { max-width: 620px; margin-bottom: 38px; color: var(--muted); font-size: clamp(16px, 1.3vw, 20px); line-height: 1.85; }
.hero-copy strong { color: var(--text); font-weight: 600; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.button { min-height: 52px; padding: 0 22px; display: inline-flex; justify-content: center; align-items: center; gap: 15px; border: 1px solid var(--line); font-size: 13px; letter-spacing: .04em; transition: transform .25s, border-color .25s, background .25s; }
.button svg { width: 20px; fill: none; stroke: currentColor; stroke-width: 1.5; }
.button:hover { transform: translateY(-2px); border-color: var(--line-bright); }
.button-primary { background: var(--cyan); color: #04110e; border-color: var(--cyan); font-weight: 700; }
.button-primary:hover { background: #a1ffe7; }
.button-quiet { background: rgba(255,255,255,.02); }
.button-disabled { cursor: default; opacity: .72; }

.hero-console { position: relative; border: 1px solid var(--line); background: rgba(10,14,20,.78); box-shadow: 0 35px 100px rgba(0,0,0,.4); backdrop-filter: blur(12px); transform: perspective(1100px) rotateY(-5deg) rotateX(2deg); }
.hero-console::before { content: ""; position: absolute; inset: -1px; z-index: -1; background: linear-gradient(125deg, rgba(125,249,214,.35), transparent 30%, transparent 75%, rgba(100,168,255,.2)); filter: blur(10px); opacity: .45; }
.console-bar { height: 46px; padding: 0 16px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); color: #6f7d89; font: 10px var(--mono); letter-spacing: .1em; }
.console-dots { display: flex; gap: 7px; }
.console-dots i { width: 6px; height: 6px; border-radius: 50%; background: #35404a; }
.console-body { position: relative; padding: 24px 17px 30px; overflow: hidden; }
.console-body p { margin: 0; font: clamp(10px, 1vw, 13px)/2.2 var(--mono); white-space: nowrap; }
.line-no { display: inline-block; width: 36px; color: #39444f; user-select: none; }
.code-key { color: #c0cad2; }
.code-prop { color: var(--blue); }
.code-value { color: var(--cyan); }
.cursor { display: inline-block; width: 7px; height: 15px; margin-left: 5px; background: var(--cyan); vertical-align: middle; animation: blink 1s steps(1) infinite; }
.orbit { position: absolute; width: 58px; height: 58px; right: -28px; bottom: -28px; border: 1px solid var(--line-bright); border-radius: 50%; animation: spin 8s linear infinite; }
.orbit span { position: absolute; top: -3px; left: 26px; width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 16px var(--cyan); }
.scroll-cue { position: absolute; left: clamp(24px, 5vw, 80px); bottom: 26px; display: flex; align-items: center; gap: 13px; color: #606d77; font: 9px var(--mono); letter-spacing: .14em; }
.scroll-cue i { display: block; width: 38px; height: 1px; background: var(--line); position: relative; overflow: hidden; }
.scroll-cue i::after { content: ""; position: absolute; inset: 0; background: var(--cyan); transform: translateX(-100%); animation: lineMove 2s infinite; }

.section { padding: 130px clamp(24px, 8vw, 140px); border-bottom: 1px solid var(--line); }
.section-label { display: flex; align-items: center; gap: 14px; margin-bottom: 70px; color: #5f6a75; font: 10px var(--mono); letter-spacing: .17em; }
.section-label::after { content: ""; width: 80px; height: 1px; background: var(--line); }
.section-label span { color: var(--cyan); }
.kicker { margin-bottom: 17px; color: var(--cyan); font: 600 11px var(--mono); letter-spacing: .18em; text-transform: uppercase; }
.section h2 { margin-bottom: 0; font: 700 clamp(46px, 5.5vw, 78px)/1.05 var(--display); letter-spacing: -.045em; }
.about-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(60px, 10vw, 170px); }
.about-copy > p { color: var(--muted); font-size: 16px; line-height: 1.9; }
.about-copy .lead { margin-bottom: 26px; color: var(--text); font-size: clamp(22px, 2vw, 29px); line-height: 1.55; letter-spacing: -.02em; }
.principles { margin-top: 55px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.principles article { padding: 26px 22px 0 0; }
.principles article + article { padding-left: 22px; border-left: 1px solid var(--line); }
.principles span { color: var(--cyan); font: 10px var(--mono); }
.principles h3 { margin: 18px 0 10px; font-size: 15px; }
.principles p { margin: 0; color: #76828d; font-size: 12px; line-height: 1.65; }

.projects { background: rgba(255,255,255,.012); }
.section-top { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 62px; }
.section-top > p { max-width: 400px; margin: 0 0 4px; color: var(--muted); line-height: 1.75; }
.project-list { display: grid; gap: 18px; }
.project-card { min-height: 330px; padding: 28px; display: grid; grid-template-columns: 80px 1fr minmax(280px, .9fr); gap: 30px; align-items: stretch; border: 1px solid var(--line); background: rgba(8,11,16,.78); transition: border-color .35s, transform .35s, background .35s; overflow: hidden; }
.project-card:hover { border-color: var(--line-bright); background: #0c1117; transform: translateY(-3px); }
.project-index { color: #596570; font: 10px var(--mono); letter-spacing: .08em; }
.project-main { padding: 34px 10px; display: flex; flex-direction: column; align-items: flex-start; }
.project-meta { display: flex; gap: 14px; color: var(--cyan); font: 10px var(--mono); letter-spacing: .1em; }
.project-meta span + span { color: #67737d; }
.project-main h3 { margin: 27px 0 15px; font: 600 clamp(28px, 3vw, 45px)/1.15 var(--display); letter-spacing: -.035em; }
.project-main > p { max-width: 600px; margin-bottom: 28px; color: var(--muted); line-height: 1.8; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: auto 0 0; padding: 0; list-style: none; }
.tags li { padding: 7px 10px; border: 1px solid var(--line); color: #75818c; font: 9px var(--mono); letter-spacing: .08em; }
.project-visual { position: relative; min-height: 260px; display: grid; place-items: center; background: #090d12; border: 1px solid rgba(255,255,255,.05); overflow: hidden; }
.project-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(transparent 50%, rgba(125,249,214,.02) 50%); background-size: 100% 4px; }
.device { width: 105px; height: 160px; border: 1px solid #4d5e6b; border-radius: 22px; display: grid; place-items: center; box-shadow: inset 0 0 0 5px #0e151c, 0 20px 45px rgba(0,0,0,.5); transform: rotate(-7deg); }
.device span { width: 48px; height: 48px; border: 1px solid var(--line-bright); border-radius: 50%; box-shadow: 0 0 30px rgba(125,249,214,.1); }
.device i { position: absolute; bottom: 12px; width: 28px; height: 2px; background: #35424b; }
.signal { position: absolute; border: 1px solid rgba(125,249,214,.15); border-radius: 50%; }
.signal-a { width: 180px; height: 180px; }
.signal-b { width: 245px; height: 245px; }
.data-panel { width: 78%; height: 62%; padding: 25px; display: flex; align-items: flex-end; gap: 9px; border: 1px solid #2c3943; background: linear-gradient(145deg, #0c1219, #080b0f); transform: perspective(600px) rotateY(-9deg) rotateX(6deg); }
.data-panel i { flex: 1; height: 30%; background: rgba(100,168,255,.2); border-top: 1px solid var(--blue); }
.data-panel i:nth-child(2) { height: 60%; }.data-panel i:nth-child(3) { height: 42%; }.data-panel i:nth-child(4) { height: 78%; background: rgba(125,249,214,.2); border-color: var(--cyan); }
.data-panel span { position: absolute; left: 25px; right: 25px; top: 27px; height: 1px; background: linear-gradient(90deg, var(--cyan), transparent); }
.visual-next span { font: 200 90px var(--display); color: #31404b; transition: color .3s, transform .3s; }
.project-card:hover .visual-next span { color: var(--cyan); transform: rotate(90deg); }

.insight-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 18px; }
.insight-featured { position: relative; min-height: 540px; padding: clamp(28px, 4vw, 55px); display: flex; flex-direction: column; border: 1px solid var(--line); background: linear-gradient(145deg, #0f171d, #090d12); overflow: hidden; }
.article-meta { display: flex; justify-content: space-between; gap: 20px; color: var(--cyan); font: 9px var(--mono); letter-spacing: .1em; }
.article-meta time { color: #5e6a74; }
.insight-featured h3 { max-width: 670px; margin: auto 0 24px; font: 600 clamp(34px, 4.2vw, 66px)/1.1 var(--display); letter-spacing: -.045em; }
.insight-featured > p { max-width: 580px; color: var(--muted); font-size: 16px; line-height: 1.8; }
.article-link { margin-top: 26px; color: #dce5e5; font-size: 12px; }
.article-link i { color: var(--cyan); font-style: normal; margin-left: 7px; }
.article-pattern { position: absolute; width: 300px; height: 300px; top: 70px; right: -125px; border: 1px solid rgba(125,249,214,.12); border-radius: 50%; }
.article-pattern i { position: absolute; border: 1px solid rgba(125,249,214,.08); border-radius: 50%; inset: 40px; }
.article-pattern i:nth-child(2) { inset: 80px; }.article-pattern i:nth-child(3) { inset: 120px; background: var(--cyan); box-shadow: 0 0 60px var(--cyan); }
.insight-list { display: grid; gap: 18px; }
.insight-item { min-height: 168px; padding: 27px 30px; border: 1px solid var(--line); background: rgba(255,255,255,.012); transition: border-color .3s, transform .3s; }
.insight-item:hover { border-color: var(--line-bright); transform: translateX(-4px); }
.insight-item h3 { margin: 25px 0 10px; font-size: clamp(18px, 1.8vw, 25px); line-height: 1.35; letter-spacing: -.02em; }
.insight-item p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; }

.contact { position: relative; min-height: 700px; padding: 150px 24px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; border-bottom: 1px solid var(--line); overflow: hidden; }
.contact-glow { position: absolute; width: 580px; height: 580px; border: 1px solid rgba(125,249,214,.08); border-radius: 50%; box-shadow: 0 0 0 95px rgba(125,249,214,.02), 0 0 0 190px rgba(125,249,214,.012), inset 0 0 120px rgba(125,249,214,.04); }
.contact h2 { z-index: 1; margin: 0 0 27px; font: 700 clamp(62px, 9vw, 135px)/.9 var(--display); letter-spacing: -.06em; }
.contact h2 span { color: transparent; -webkit-text-stroke: 1px var(--cyan); }
.contact-copy { z-index: 1; max-width: 520px; margin-bottom: 34px; color: var(--muted); line-height: 1.8; }
.contact .button { z-index: 1; }
.site-footer { min-height: 120px; padding: 30px clamp(24px, 5vw, 80px); display: flex; align-items: center; justify-content: space-between; gap: 30px; color: #5b6670; font: 9px var(--mono); letter-spacing: .1em; }
.site-footer > a:last-child { transition: color .2s; }.site-footer > a:last-child:hover { color: var(--cyan); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
@keyframes blink { 50% { opacity: 0; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes lineMove { 50%,100% { transform: translateX(100%); } }

@media (max-width: 1050px) {
  .hero { grid-template-columns: 1fr; gap: 60px; padding-top: 140px; }
  .hero-console { width: min(640px, 94%); margin-left: auto; transform: none; }
  .about-layout { grid-template-columns: 1fr; }
  .project-card { grid-template-columns: 60px 1fr; }
  .project-visual { grid-column: 2; }
  .insight-grid { grid-template-columns: 1fr; }
  .insight-featured { min-height: 470px; }
}

@media (max-width: 720px) {
  body { background-size: 42px 42px; }
  .site-header { height: 70px; padding: 0 20px; }
  .menu-toggle { display: grid; place-content: center; gap: 6px; }
  .menu-toggle span:not(.sr-only) { display: block; width: 18px; height: 1px; background: white; transition: transform .25s; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }
  .site-nav { position: fixed; top: 70px; left: 0; right: 0; padding: 30px 24px 40px; display: none; flex-direction: column; align-items: flex-start; gap: 26px; background: rgba(7,9,13,.97); border-bottom: 1px solid var(--line); }
  .site-nav.open { display: flex; }
  .site-nav a { font-size: 18px; }
  .hero { min-height: auto; padding: 120px 24px 100px; }
  h1 { font-size: clamp(45px, 12vw, 54px); }
  .hero-copy { font-size: 16px; }
  .hero-console { width: 100%; }
  .console-body { padding-left: 8px; }
  .console-body p { font-size: 8px; }
  .line-no { width: 25px; }
  .scroll-cue { display: none; }
  .section { padding: 95px 24px; }
  .section-label { margin-bottom: 48px; }
  .section-top { align-items: flex-start; flex-direction: column; margin-bottom: 44px; }
  .principles { grid-template-columns: 1fr; }
  .principles article, .principles article + article { padding: 22px 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .project-card { padding: 20px; grid-template-columns: 1fr; gap: 0; }
  .project-index { margin-bottom: 18px; }
  .project-main { padding: 10px 0 30px; }
  .project-visual { grid-column: auto; min-height: 230px; }
  .insight-featured { min-height: 520px; padding: 25px; }
  .article-meta { flex-direction: column; gap: 6px; }
  .insight-item { padding: 24px; }
  .contact { min-height: 600px; }
  .site-footer { flex-direction: column; text-align: center; padding: 40px 24px; }
}

@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; }
}