@charset "UTF-8";

:root {
  color-scheme: light;
  --ink: #10231f;
  --ink-soft: #304941;
  --muted: #64796f;
  --paper: #f2f3ed;
  --card: #fbfcf8;
  --line: #d9e1d9;
  --mint: #87dec9;
  --mint-dark: #237b6a;
  --lilac: #c4b4ef;
  --coral: #f1ad8e;
  --shadow: 0 24px 60px rgba(16, 35, 31, .10);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { margin: 0; background: var(--paper); color: var(--ink); }
a { color: inherit; }
button { color: inherit; font: inherit; }
:focus-visible { outline: 3px solid #9c79dc; outline-offset: 4px; }

.skip-link { position: absolute; left: 16px; top: -60px; z-index: 20; padding: 10px 14px; border-radius: 10px; background: white; }
.skip-link:focus { top: 12px; }
.topbar { align-items: center; background: rgba(242, 243, 237, .93); border-bottom: 1px solid rgba(16, 35, 31, .08); display: flex; justify-content: space-between; padding: 14px clamp(20px, 5vw, 78px); position: sticky; top: 0; z-index: 10; backdrop-filter: blur(14px); }
.brand { align-items: center; color: var(--ink); display: inline-flex; font-size: 1.08rem; font-weight: 760; gap: 10px; letter-spacing: -.03em; text-decoration: none; }
.brand img { display: block; flex: 0 0 auto; height: 34px; width: 34px; }
.topbar nav { align-items: center; display: flex; gap: clamp(14px, 2.6vw, 34px); }
.topbar nav a { color: var(--ink-soft); font-size: .9rem; text-decoration: none; }
.topbar nav a:hover { color: var(--mint-dark); }

.hero { background: var(--ink); color: #f5f6ef; display: grid; gap: 3vw; grid-template-columns: minmax(0, .95fr) minmax(360px, 1.05fr); min-height: 580px; overflow: hidden; padding: clamp(56px, 8vw, 112px) clamp(24px, 8vw, 128px); position: relative; }
.hero::after { background: radial-gradient(circle, rgba(135, 222, 201, .12), transparent 68%); content: ""; height: 600px; pointer-events: none; position: absolute; right: -120px; top: -190px; width: 600px; }
.hero-copy { align-self: center; max-width: 590px; position: relative; z-index: 2; }
.eyebrow { color: var(--mint); font-size: .73rem; font-weight: 760; letter-spacing: .14em; margin: 0 0 19px; text-transform: uppercase; }
.status-dot { background: var(--mint); border-radius: 50%; box-shadow: 0 0 0 5px rgba(135, 222, 201, .12); display: inline-block; height: 7px; margin: 0 7px 1px 2px; width: 7px; }
.hero h1 { font-size: clamp(3rem, 6.2vw, 5.8rem); letter-spacing: -.075em; line-height: .98; margin: 0; }
.hero h1 span { color: var(--mint); font-size: .78em; letter-spacing: -.055em; }
.hero-lead { color: #d7e5df; font-size: clamp(1.05rem, 1.5vw, 1.3rem); line-height: 1.75; margin: 26px 0 0; max-width: 550px; }
.hero-actions { align-items: center; display: flex; flex-wrap: wrap; gap: 23px; margin-top: 34px; }
.button { align-items: center; border-radius: 999px; display: inline-flex; font-weight: 720; gap: 12px; justify-content: center; min-height: 48px; padding: 0 21px; text-decoration: none; transition: transform .2s ease, background-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-light { background: var(--mint); color: var(--ink); }
.button-light:hover { background: #a2eddb; }
.text-link { color: #e3e9e4; font-size: .94rem; text-decoration-color: rgba(227, 233, 228, .4); text-underline-offset: 5px; }
.text-link:hover { color: var(--mint); }
.hero-note { color: #aebeb5; font-size: .82rem; margin: 30px 0 0; }

.hero-visual { align-self: center; justify-self: center; max-width: 540px; min-height: 430px; position: relative; width: 100%; z-index: 1; }
.visual-grid { background-image: linear-gradient(rgba(190, 224, 209, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(190, 224, 209, .045) 1px, transparent 1px); background-size: 31px 31px; inset: 0 0 18px; mask-image: radial-gradient(ellipse at center, #000 30%, transparent 76%); position: absolute; }
.phone-diagram { height: 100%; inset: 0; overflow: visible; position: absolute; width: 100%; }
.phone { fill: #162f29; stroke: #78cdb9; stroke-width: 2; }
.phone-screen { stroke: rgba(135, 222, 201, .45); stroke-width: 1; }
.speaker { fill: #8aafa3; }
.sensor-core { fill: rgba(135, 222, 201, .16); stroke: var(--mint); stroke-width: 2; }
.sensor-ring { fill: none; stroke: rgba(135, 222, 201, .35); stroke-dasharray: 4 7; stroke-width: 1.5; }
.circuit, .orbit { fill: none; stroke: #80cdb9; stroke-linecap: round; stroke-linejoin: round; stroke-width: 2; }
.orbit { opacity: .44; stroke-dasharray: 3 8; }
.orbit-one { animation: drift 9s linear infinite; }
.orbit-two { animation: drift 11s linear infinite reverse; }
.node { stroke: var(--ink); stroke-width: 4; }
.node-mint { fill: var(--mint); }
.node-lilac { fill: var(--lilac); }
.diagram-label { fill: #e8faf4; font-size: 12px; font-weight: 800; letter-spacing: .16em; }
.diagram-caption { fill: #a9c5b8; font-size: 12px; }
.visual-label { align-items: center; background: rgba(19, 46, 39, .92); border: 1px solid rgba(135, 222, 201, .28); border-radius: 999px; box-shadow: 0 10px 30px rgba(0,0,0,.22); color: #e9f7f0; display: flex; font-size: .8rem; gap: 8px; padding: 9px 13px; position: absolute; }
.label-left { left: 0; top: 28%; }
.label-right { bottom: 20%; right: 0; }
.label-icon { align-items: center; background: rgba(135, 222, 201, .18); border-radius: 50%; color: var(--mint); display: inline-flex; height: 22px; justify-content: center; width: 22px; }
.label-icon svg { display: block; height: 14px; width: 14px; }
.visual-foot { bottom: 7px; color: #89a69a; font-size: .72rem; letter-spacing: .04em; position: absolute; right: 8px; }

.section { margin: 0 auto; max-width: 1240px; padding: clamp(68px, 9vw, 112px) clamp(22px, 5vw, 70px); }
.section-heading { margin: 0 0 30px; max-width: 680px; }
.section-heading .eyebrow { color: var(--mint-dark); }
.section-heading h2, .body-copy h2 { font-size: clamp(2rem, 3.7vw, 3.2rem); letter-spacing: -.055em; line-height: 1.08; margin: 0; }
.section-heading > p:last-child { color: var(--muted); line-height: 1.7; margin: 14px 0 0; }
.section-heading-row { align-items: end; display: flex; justify-content: space-between; max-width: none; }
.section-heading-row > p { max-width: 340px; }

.path-section { padding-bottom: 50px; }
.path-card { background: var(--card); border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); display: grid; grid-template-columns: 260px 1fr; overflow: hidden; }
.stage-list { background: #e9eee8; display: flex; flex-direction: column; padding: 20px 14px; }
.stage-button { align-items: center; background: transparent; border: 0; border-radius: 13px; cursor: pointer; display: flex; gap: 13px; min-height: 58px; padding: 0 14px; text-align: left; transition: background-color .18s ease, color .18s ease; }
.stage-button:hover { background: rgba(255,255,255,.65); }
.stage-button.is-active { background: var(--ink); color: white; }
.stage-number { color: var(--mint-dark); font-variant-numeric: tabular-nums; font-size: .72rem; font-weight: 780; letter-spacing: .08em; }
.stage-button.is-active .stage-number { color: var(--mint); }
.stage-button span:last-child { font-weight: 700; }
.stage-content { display: grid; gap: 26px; grid-template-columns: 1fr 1.1fr; padding: clamp(26px, 5vw, 58px); position: relative; }
.stage-rail { align-self: center; display: flex; height: 5px; grid-column: 1 / -1; justify-content: space-between; margin: 5px 6px -2px; position: relative; }
.stage-rail::before, .rail-fill { border-radius: 99px; content: ""; height: 100%; left: 0; position: absolute; top: 0; }
.stage-rail::before { background: #e0e8e0; right: 0; }
.rail-fill { background: var(--mint-dark); transition: width .35s ease; width: 0%; }
.rail-dot { background: #d2ddd3; border: 3px solid var(--card); border-radius: 50%; height: 13px; margin-top: -4px; position: relative; width: 13px; z-index: 1; }
.rail-dot.is-active { background: var(--mint-dark); box-shadow: 0 0 0 4px rgba(35, 123, 106, .12); }
.stage-detail { align-self: center; grid-column: 1 / -1; max-width: 690px; min-height: 192px; }
.stage-kicker { color: var(--mint-dark); font-size: .76rem; font-weight: 780; letter-spacing: .09em; margin: 0 0 9px; }
.stage-detail h3 { font-size: clamp(1.4rem, 2.4vw, 1.95rem); letter-spacing: -.04em; margin: 0; }
.stage-detail p:not(.stage-kicker) { color: var(--muted); line-height: 1.8; margin: 12px 0 15px; max-width: 640px; }
.stage-state { background: #edf2eb; border-radius: 6px; color: #4e6960; display: inline-block; font: 700 .68rem/1.4 ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .07em; padding: 6px 9px; }
.stage-static { display: none; }

.capability-section { padding-top: 66px; }
.capability-grid { display: grid; gap: 16px; grid-template-columns: repeat(3, 1fr); }
.capability-card { background: var(--card); border: 1px solid var(--line); border-radius: 20px; min-height: 270px; padding: 24px; transition: transform .2s ease, box-shadow .2s ease; }
.capability-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.capability-icon { align-items: center; border-radius: 15px; display: flex; height: 48px; justify-content: center; width: 48px; }
.capability-icon svg { fill: none; height: 29px; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.9; width: 29px; }
.icon-sense { background: #dff3ed; color: #267a68; }
.icon-act { background: #eee8fa; color: #6854a4; }
.icon-proof { background: #fdebe2; color: #a35f41; }
.card-index { color: var(--muted); font-size: .67rem; font-weight: 800; letter-spacing: .12em; margin: 20px 0 7px; }
.capability-card h3 { font-size: 1.45rem; letter-spacing: -.04em; margin: 0; }
.capability-card > p:not(.card-index) { color: var(--muted); line-height: 1.7; margin: 10px 0 18px; }
details { border-top: 1px solid var(--line); padding-top: 12px; }
summary { color: var(--mint-dark); cursor: pointer; font-size: .86rem; font-weight: 720; list-style-position: outside; }
details p { color: var(--muted); font-size: .88rem; line-height: 1.65; margin: 11px 0 0; }

.body-section { align-items: center; display: grid; gap: 50px; grid-template-columns: .9fr 1.1fr; }
.body-copy { max-width: 510px; }
.body-copy .eyebrow { color: #8a6cc2; }
.body-copy > p:not(.eyebrow) { color: var(--muted); line-height: 1.8; }
.vision-note { align-items: start; background: #eeeafa; border-left: 3px solid var(--lilac); border-radius: 0 12px 12px 0; color: #514477 !important; display: flex; font-size: .9rem; gap: 10px; padding: 13px 16px; }
.organ-map { background: #e8eee7; border: 1px solid #d7e0d6; border-radius: 22px; height: 340px; overflow: hidden; position: relative; }
.organ-lines { height: 100%; inset: 0; position: absolute; width: 100%; }
.organ-lines path { fill: none; stroke: #91afa1; stroke-dasharray: 5 6; stroke-width: 1.6; }
.organ-core, .organ { align-items: center; border-radius: 50%; display: flex; flex-direction: column; justify-content: center; position: absolute; text-align: center; z-index: 1; }
.organ-core { background: var(--ink); box-shadow: 0 12px 28px rgba(16, 35, 31, .2); color: var(--mint); height: 120px; left: calc(50% - 60px); top: calc(50% - 60px); width: 120px; }
.organ-core span { font-size: 1.18rem; font-weight: 800; letter-spacing: -.04em; line-height: .95; }
.organ-core small { color: #c1d0c7; font-size: .7rem; margin-top: 8px; }
.organ { background: var(--card); border: 1px solid #c7d7ce; box-shadow: 0 8px 20px rgba(16,35,31,.06); height: 74px; width: 74px; }
.organ small { color: var(--mint-dark); font-size: .74rem; font-weight: 720; }
.organ-battery { left: 12%; top: 10%; }
.organ-sensor { right: 12%; top: 10%; }
.organ-audio { bottom: 10%; left: 12%; }
.organ-notice { bottom: 10%; right: 12%; }

.status-section { padding-top: 62px; }
.status-grid { display: grid; gap: 15px; grid-template-columns: repeat(3, 1fr); }
.status-card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 22px; }
.status-tag { display: inline-block; font-size: .66rem; font-weight: 820; letter-spacing: .1em; margin-bottom: 14px; }
.status-pass .status-tag { color: #247461; }
.status-pending .status-tag { color: #966348; }
.status-card h3 { font-size: 1.2rem; letter-spacing: -.03em; margin: 0; }
.status-card p { color: var(--muted); font-size: .91rem; line-height: 1.72; margin: 10px 0 0; }
.release-note { background: #fff8f2; border: 1px solid #f0ddd0; border-radius: 12px; color: #725744; line-height: 1.6; margin: 18px 0 0; padding: 13px 16px; }

.ecosystem-section { padding-top: 55px; }
.ecosystem-grid { display: grid; gap: 12px; grid-template-columns: repeat(5, 1fr); }
.ecosystem-grid a { background: var(--card); border: 1px solid var(--line); border-radius: 15px; display: flex; flex-direction: column; min-height: 150px; padding: 18px; text-decoration: none; transition: border-color .2s ease, transform .2s ease; }
.ecosystem-grid a:hover { border-color: #94cfc0; transform: translateY(-3px); }
.ecosystem-grid span { color: var(--muted); font-size: .72rem; }
.ecosystem-grid strong { font-size: 1rem; letter-spacing: -.03em; margin: 13px 0 7px; }
.ecosystem-grid small { color: var(--muted); font-size: .79rem; line-height: 1.55; }
.footer { align-items: center; background: #e5ebe4; border-top: 1px solid var(--line); color: var(--muted); display: flex; flex-wrap: wrap; gap: 10px 25px; justify-content: space-between; padding: 22px clamp(22px, 5vw, 70px); }
.footer-brand { color: var(--ink); }
.footer p, .footer small { margin: 0; }
.footer a:last-of-type { font-size: .86rem; text-decoration: none; }
.footer a:last-of-type:hover { color: var(--mint-dark); }
.footer small { flex-basis: 100%; font-size: .72rem; }

@keyframes drift { to { stroke-dashoffset: 44; } }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-bottom: 45px; }
  .hero-copy { max-width: 720px; }
  .hero-visual { height: 390px; max-width: 500px; }
  .body-section { grid-template-columns: 1fr; }
  .body-copy { max-width: 700px; }
  .ecosystem-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 680px) {
  .topbar { align-items: flex-start; flex-direction: column; gap: 10px; padding: 12px 18px; }
  .topbar nav { gap: 17px; max-width: 100%; overflow-x: auto; padding: 2px 0 5px; white-space: nowrap; }
  .topbar nav a { font-size: .82rem; }
  .hero { gap: 18px; min-height: auto; padding: 56px 21px 36px; }
  .hero h1 { font-size: clamp(3rem, 15vw, 4.6rem); }
  .hero-visual { height: 330px; min-height: 330px; }
  .visual-label { font-size: .72rem; padding: 7px 10px; }
  .label-left { left: -5px; }
  .label-right { right: -5px; }
  .section { padding: 63px 19px; }
  .section-heading-row { align-items: flex-start; flex-direction: column; gap: 8px; }
  .section-heading-row > p { margin-top: 0 !important; }
  .path-card { grid-template-columns: 1fr; }
  .stage-list { flex-direction: row; gap: 4px; overflow-x: auto; padding: 10px; }
  .stage-button { flex: 0 0 auto; gap: 8px; min-height: 45px; padding: 0 10px; }
  .stage-button span:last-child { font-size: .82rem; }
  .stage-number { font-size: .62rem; }
  .stage-content { grid-template-columns: 1fr; padding: 24px 20px; }
  .stage-detail { min-height: 220px; }
  .capability-grid, .status-grid { grid-template-columns: 1fr; }
  .capability-card { min-height: 0; }
  .organ-map { height: 290px; }
  .organ-battery, .organ-audio { left: 5%; }
  .organ-sensor, .organ-notice { right: 5%; }
  .ecosystem-grid { grid-template-columns: repeat(2, 1fr); }
  .footer { align-items: flex-start; flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}