:root {
  --ink: #0a0a0a;
  --paper: #ffffff;
  --paper-rgb: 255, 255, 255;
  --grid-dot: 255, 255, 255;

  --over: 255, 255, 255;

  --ink-rgb: 10, 10, 10;
  --mute: #6f6f6f;
  --faint: #a3a3a3;
  --hairline: #e4e4e4;
  --serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", "Source Han Serif SC", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", Arial, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}
body {
  font-family: var(--sans);
  background: var(--ink);
  color: rgb(var(--over));
  line-height: 1.6;
}
body.subpage { isolation: isolate; }
html { overflow-x: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--paper); color: var(--ink); }
.eyebrow {
  font-size: 13px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: rgba(var(--over), 0.45);
  font-weight: 500;
}
.eyebrow-center { text-align: center; }
.section-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(34px, 4.5vw, 54px);
  letter-spacing: 0.06em;
  text-align: center;
  margin-top: 18px;
}
.reveal,
.reveal-scale {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-scale { transform: translateY(20px) scale(0.96); }
.reveal.in,
.reveal-scale.in { opacity: 1; transform: none; }
.d1 { transition-delay: 0.1s; }
.d2 { transition-delay: 0.2s; }
.d3 { transition-delay: 0.3s; }
.d4 { transition-delay: 0.4s; }
.progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 90;
  pointer-events: none;
}
.progress-bar {
  display: block;
  height: 100%;
  width: 0;
  background: rgb(var(--over));
  box-shadow: 0 0 0 1px var(--ink);
  transition: background 0.35s, box-shadow 0.35s;
}
.progress.light .progress-bar {
  background: var(--ink);
  box-shadow: 0 0 0 1px var(--paper);
}
.hero {
  height: 100vh;
  height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 1;
  padding: 0 24px;
}
.hero-eyebrow {
  font-family: var(--serif);
  font-size: clamp(15px, 1.6vw, 19px);
  letter-spacing: 0.6em;
  text-indent: 0.6em;
  color: rgba(var(--over), 0.55);
  margin-top: 30px;
}
.hero-cta {
  margin-top: 52px;
  padding: 15px 54px;
  border: 1px solid rgba(var(--over), 0.85);
  border-radius: 999px;
  font-size: 14px;
  letter-spacing: 0.3em;
  text-indent: 0.3em;
  color: rgb(var(--over));
  transition: background 0.35s, color 0.35s, transform 0.35s;
}
.hero-cta:hover {
  background: rgb(var(--over));
  color: var(--ink);
  transform: translateY(-2px);
}
.hero-brand {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(52px, 10vw, 130px);
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: rgb(var(--over));
}
.sig-loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  pointer-events: none;
  opacity: 1;
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), visibility 0s linear 0.8s;
}
.sig-loader.sig-done {
  opacity: 0;
  visibility: hidden;
}
.sig-svg {
  width: clamp(280px, 38vw, 520px);
  height: auto;
  overflow: visible;
}
.sig-path {
  stroke: rgb(var(--over));
  stroke-width: 3.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.sig-path.sig-drawn {
  transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.no-scroll {
  overflow: hidden !important;
  height: 100vh !important;
}
.hero .hero-brand,
.hero .hero-eyebrow,
.hero .hero-cta,
.hero .scroll-hint {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.hero.hero-enter .hero-brand { transition-delay: 0.1s; }
.hero.hero-enter .hero-eyebrow { transition-delay: 0.25s; }
.hero.hero-enter .hero-cta { transition-delay: 0.4s; }
.hero.hero-enter .scroll-hint { transition-delay: 0.55s; }
.hero.hero-enter .hero-brand,
.hero.hero-enter .hero-eyebrow,
.hero.hero-enter .hero-cta,
.hero.hero-enter .scroll-hint {
  opacity: 1;
  transform: translateY(0);
}
.scroll-hint {
  position: absolute;
  bottom: 44px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.scroll-hint-line {
  width: 1px;
  height: 58px;
  background: rgba(var(--over), 0.85);
  display: block;
  transform-origin: top;
  animation: hint-drop 2.2s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}
@keyframes hint-drop {
  0%   { transform: scaleY(0); opacity: 0; }
35%  { transform: scaleY(1); opacity: 1; transform-origin: top; }
70%  { transform: scaleY(1); opacity: 1; }
100% { transform: scaleY(0); opacity: 0; transform-origin: bottom; }
}
.products { display: flex; flex-direction: column; }
.product-block {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
}
.panel-copy {
  padding: 0 10vw 0 8vw;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  z-index: 2;
  color: var(--ink);
}
.panel-copy .eyebrow { color: rgba(var(--ink-rgb), 0.5); }
.panel-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(34px, 4.2vw, 58px);
  line-height: 1.3;
  letter-spacing: 0.04em;
  margin-top: 26px;
}
.panel-sublead {
  margin-top: 26px;
  font-size: 15px;
  line-height: 1.95;
  letter-spacing: 0.05em;
  color: #5c5c5c;
  max-width: min(32vw, 520px);
}
.tags { display: flex; gap: 12px; margin-top: 30px; flex-wrap: wrap; }
.tag {
  font-size: 12px;
  letter-spacing: 0.18em;
  border: 1px solid var(--ink);
  padding: 7px 16px;
  border-radius: 999px;
  font-weight: 500;
  color: var(--ink);
}
.feat-list {
  list-style: none;
  margin-top: 54px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px 48px;
  max-width: min(36vw, 620px);
}
.feat-list h3 {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding-left: 14px;
  position: relative;
}
.feat-list h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  background: var(--ink);
  border-radius: 50%;
}
.feat-list p {
  font-size: 13px;
  color: var(--mute);
  margin-top: 6px;
  padding-left: 14px;
  line-height: 1.75;
  overflow-wrap: break-word;
}
.panel-note {
  margin-top: 52px;
  font-size: 12px;
  letter-spacing: 0.24em;
  color: #8a8a8a;
}
.panel-agent .panel-sub {
  margin-top: 22px;
  font-size: clamp(15px, 1.5vw, 18px);
  letter-spacing: 0.28em;
  color: #6f6f6f;
}
.panel-agent .panel-line {
  margin-top: 46px;
  font-family: var(--serif);
  font-size: clamp(16px, 1.6vw, 20px);
  letter-spacing: 0.12em;
  color: var(--ink);
}
@media (min-width: 901px) {
  .panel-agent .panel-copy { grid-column: 2; padding: 0 8vw 0 8vw; }
.panel-agent .panel-dark { justify-content: flex-start; }
.panel-agent .agent-mark { margin-right: 0; margin-left: 9vw; }
}
.panel-dark {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  pointer-events: none;
}
.seam {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.seam path { fill: var(--paper); }
.phones {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 1.4vw;
  margin-right: 2vw;
  pointer-events: auto;
}
.phones .phone { margin: 0; }
.phones .phone:nth-child(2) { transform: translateY(-18px); }
.phone {
  position: relative;
  z-index: 2;
  text-align: center;
  pointer-events: auto;
}
.phone-frame {
  width: clamp(150px, 15vw, 216px);
  border: 3px solid rgba(var(--over), 0.3);
  border-radius: 26px;
  overflow: hidden;
  background: var(--ink);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.55);
}
.phone-frame img { width: 100%; height: auto; }
.agent-mark {
  position: relative;
  z-index: 2;
  margin-right: 9vw;
  text-align: center;
  color: rgb(var(--over));
}
.agent-q {
  display: block;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(120px, 15vw, 210px);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(var(--over), 0.9);
}
.agent-word {
  display: block;
  margin-top: 26px;
  font-size: clamp(14px, 1.4vw, 17px);
  letter-spacing: 0.85em;
  text-indent: 0.85em;
  font-weight: 300;
  color: rgba(var(--over), 0.85);
}
.agent-year {
  display: block;
  margin-top: 12px;
  font-family: var(--serif);
  font-size: clamp(13px, 1.2vw, 15px);
  letter-spacing: 0.4em;
  text-indent: 0.4em;
  color: rgba(var(--over), 0.35);
}
.download {
  min-height: 100vh;
  padding: 10vh 7vw;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: var(--ink);
}
.download .eyebrow { color: rgba(var(--ink-rgb), 0.5); }
.dl-grid {
  margin-top: 64px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  max-width: 1080px;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
}
.dl-card {
  padding: 52px 46px;
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: var(--ink);
  border: 1px solid rgba(var(--over), 0.22);
  color: var(--paper);
}
.dl-head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: rgba(var(--over), 0.55);
}
.dl-head svg { width: 22px; height: 22px; }
.dl-card h3 {
  font-family: var(--serif);
  font-size: clamp(26px, 2.6vw, 34px);
  font-weight: 700;
  letter-spacing: 0.03em;
  margin-top: 26px;
}
.dl-ver {
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: rgba(var(--over), 0.55);
}
.dl-desc {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(var(--over), 0.62);
  min-height: 52px;
}
.btn {
  margin-top: 30px;
  display: inline-block;
  padding: 14px 44px;
  border-radius: 999px;
  font-size: 14px;
  letter-spacing: 0.2em;
  transition: opacity 0.3s, transform 0.3s;
}
.btn-solid {
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--paper);
}
.btn-solid:hover { opacity: 0.82; transform: translateY(-2px); }
.btn-ghost {
  border: 1px solid rgba(var(--over), 0.4);
  color: rgba(var(--over), 0.5);
  cursor: default;
}
.dl-sublinks {
  margin-top: 20px;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.dl-alt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(var(--over), 0.6);
  border-bottom: 1px solid rgba(var(--over), 0.25);
  padding-bottom: 2px;
  transition: color 0.3s, border-color 0.3s;
}
.dl-alt:hover { color: rgb(var(--over)); border-color: rgb(var(--over)); }
.dl-alt--dim {
  color: rgba(var(--over), 0.3);
  border-bottom: none;
  cursor: default;
}
.about {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100svh;
  color: var(--paper);
  padding: 96px 7vw 46px;
  border-top: 1px solid rgba(var(--over), 0.16);
}
.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 48px;
  max-width: 1080px;
  margin: 0 auto;
}
.about-logo {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 40px;
  letter-spacing: 0.02em;
}
.about-slogan {
  margin-top: 16px;
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0.42em;
  color: rgba(var(--over), 0.75);
}
.about-slogan-en {
  margin-top: 8px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(var(--over), 0.35);
}
.about-col h4 {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: rgba(var(--over), 0.4);
  font-weight: 500;
  margin-bottom: 20px;
}
.about-col a {
  display: block;
  font-size: 14px;
  color: rgba(var(--over), 0.78);
  margin-bottom: 12px;
  transition: color 0.3s;
}
.about-col a:hover { color: rgb(var(--over)); }
.about-intro {
  max-width: 1080px;
  margin: 64px auto 0;
  padding-top: 36px;
  border-top: 1px solid rgba(var(--over), 0.12);
}
.about-intro p {
  font-size: 13px;
  line-height: 2;
  color: rgba(var(--over), 0.55);
  max-width: 760px;
}
.disclaimer {
  max-width: 1080px;
  margin: 40px auto 0;
}
.disclaimer h4 {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: rgba(var(--over), 0.4);
  font-weight: 500;
  margin-bottom: 12px;
}
.disclaimer p {
  font-size: 12px;
  line-height: 2;
  color: rgba(var(--over), 0.4);
  max-width: 760px;
}
.about-bottom {
  max-width: 1080px;

  margin: auto auto 0;
  padding-top: 26px;
  border-top: 1px solid rgba(var(--over), 0.12);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(var(--over), 0.35);
}
@media (max-width: 900px) {

  .hero {
    height: 100vh;
    height: 100svh;
  }
.panel {
    height: 100vh;
    height: 100svh;
    grid-template-columns: 1fr;
    grid-template-rows: 58vh 42vh;
    grid-template-rows: 58svh 42svh;
  }
.panel-android { z-index: 2; }
.panel-agent { z-index: 3; border-radius: 26px 26px 0 0; }
.panel-copy {
    padding: 24px 8vw 12px;
    justify-content: safe center;
    overflow-y: auto;
    background: var(--paper);
    border-radius: 0 0 26px 26px;
  }
.panel-copy .eyebrow { font-size: 12px; }
.panel-title { font-size: clamp(20px, 5vw, 26px); line-height: 1.25; margin-top: 8px; }
.panel-sublead { font-size: 12px; margin-top: 4px; max-width: none; }
.tags { margin-top: 14px; gap: 6px; }
.tag { font-size: 10px; padding: 5px 11px; letter-spacing: 0.1em; }
.feat-list { grid-template-columns: 1fr; gap: 10px; margin-top: 16px; max-width: none; }
.feat-list h3 { font-size: 12px; }
.feat-list p { font-size: 11px; line-height: 1.45; margin-top: 2px; }
.panel-note { margin-top: 18px; }
.panel-agent .panel-sub { margin-top: 14px; font-size: 13px; }
.panel-agent .panel-line { margin-top: 22px; font-size: 14px; }
.panel-dark {
    position: relative;
    inset: auto;
    justify-content: center;
  }
.seam { display: none; }
.phones { gap: 2vw; margin: 0; }
.phones .phone:nth-child(2) { transform: translateY(-8px); }
.phone { margin: 0; }
.phone-frame { width: min(30vw, 16vh); width: min(30vw, 16svh); border-radius: 16px; border-width: 2px; }
.agent-mark { margin: 20px 0; }
.agent-q { font-size: clamp(80px, 22vw, 130px); }
.agent-word { margin-top: 14px; font-size: 12px; }
.download {
    position: sticky;
    top: 0;
    z-index: 4;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    height: 100vh;
    height: 100svh;
    min-height: 0;
    padding: 60px 7vw 32px;
    background: var(--paper);
    color: var(--ink);
    border-top: none;
    border-radius: 26px 26px 0 0;
    box-shadow: 0 -24px 60px rgba(0, 0, 0, 0.55);
  }
.eyebrow-center { margin-top: 0; }
.download .eyebrow { color: rgba(var(--ink-rgb), 0.5); }
.download .section-title { margin-bottom: 18px; font-size: clamp(26px, 6vw, 34px); }
.dl-grid { grid-template-columns: 1fr; gap: 12px; flex: 1; min-height: 0; margin-top: 0; }
.dl-card { padding: 20px 20px; min-height: 0; overflow-y: auto; border-radius: 16px; }
.dl-card h3 { font-size: 20px; margin-top: 8px; }
.dl-head { font-size: 11px; letter-spacing: 0.24em; }
.dl-head svg { width: 18px; height: 18px; }
.dl-ver { margin-top: 5px; font-size: 12px; }
.dl-desc { margin-top: 7px; font-size: 12px; line-height: 1.6; min-height: 0; }
.dl-card .btn { margin-top: 12px; padding: 10px 28px; font-size: 13px; }
.dl-sublinks { margin-top: 12px; gap: 14px; }
.about {
    min-height: 100vh;
    min-height: 100svh;
    border-top: 1px solid rgba(var(--over), 0.16);
    border-radius: 26px 26px 0 0;
    box-shadow: 0 -24px 60px rgba(0, 0, 0, 0.55);
  }
.about-bottom { margin-top: 56px; }
.about-spacer { --about-spacer-h: 170vh; --about-spacer-h: 170svh; }
.about-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .hero-brand { font-size: 17vw; }
.about-grid { grid-template-columns: 1fr; gap: 34px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
.reveal, .reveal-scale { opacity: 1; transform: none; transition: none; }
.scroll-hint-line { animation: none; }
.bg-geometry .ring, .bg-geometry .dot { animation: none; }
.bg-geometry .ring-d { transform: rotate(45deg); }
}
.subpage { min-height: 100vh; display: flex; flex-direction: column; }
.sub-id { display: flex; align-items: center; gap: 16px; }
.sub-id .sub-brand { padding-right: 16px; border-right: 1px solid rgba(var(--over), .18); }
.page-tag {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 10px;
  letter-spacing: .34em;
  text-indent: .34em;
  color: rgba(var(--over), .5);
  pointer-events: none;
  white-space: nowrap;
}
.page-tag i {
  font-family: var(--serif);
  font-size: 16px;
  font-style: normal;
  font-weight: 700;
  letter-spacing: .02em;
  text-indent: 0;
  font-variant-numeric: tabular-nums;
  color: rgb(var(--over));
}
.page-tag s { display: block; width: 20px; height: 1px; background: currentColor; opacity: .5; }
.page-tag b { font-weight: 500; }
.subpage::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}
.sub--timeline::before {
  background-image: repeating-linear-gradient(90deg, rgba(var(--over), .05) 0 1px, transparent 1px 96px);
}
.sub--assistant::before {
  background-image: radial-gradient(circle at center, rgba(var(--over), .075) 1px, transparent 1.5px);
  background-size: 26px 26px;
}
.sub--shizuku::before {
  background-image: repeating-linear-gradient(135deg, rgba(var(--over), .055) 0 1px, transparent 1px 12px);
}
.sub-top { transition: box-shadow .45s ease, border-color .45s ease; }
.sub-top.is-scrolled {
  border-bottom-color: rgba(var(--over), .2);
  box-shadow: 0 12px 34px rgba(0, 0, 0, .42);
}
.progress { mix-blend-mode: difference; }
.progress-bar { background: #fff; }
.sub-card, .sub-note { position: relative; }
.sub-note::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(var(--over), .55) 18%, rgba(var(--over), .55) 82%, transparent);
}
.sub-card::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(var(--ink-rgb), .18) 18%, rgba(var(--ink-rgb), .18) 82%, transparent);
}
.tl-card { transition: transform .5s cubic-bezier(.22,1,.36,1); }
.tl-card:hover { transform: translateX(4px); }
.sub-list li, .sub-steps li { transition: background-color .45s ease; }
.sub-list li:hover, .sub-steps li:hover { background-color: rgba(var(--over), .04); }
.tl-item .tl-dot { transition: transform .6s cubic-bezier(.34,1.56,.64,1), background-color .6s ease; }
.tl-item.reveal .tl-dot { transform: scale(0); }
.tl-item.reveal.in .tl-dot { transform: scale(1); }
a:focus-visible,
button:focus-visible {
  outline: 1px solid currentColor;
  outline-offset: 4px;
  border-radius: 2px;
}
html { scrollbar-width: thin; scrollbar-color: rgba(var(--over), .26) transparent; }
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(var(--over), .2); border-radius: 9px; }
::-webkit-scrollbar-thumb:hover { background: rgba(var(--over), .42); }
.sub-title, .section-title, .tl-head h2, .sub-section h2 { text-wrap: balance; }
@media (max-width: 640px) {
  .sub-id { gap: 12px; }
.page-tag b { display: none; }
.sub-id .sub-brand { padding-right: 12px; }
}
.sub-top {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 7vw;
  background: rgba(var(--ink-rgb), 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(var(--over), 0.1);
}
.sub-top { flex-direction: row-reverse; padding-right: max(7vw, 176px); }
.sub-back {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: rgba(var(--over), 0.7);
  transition: color 0.3s;
}
.sub-back:hover { color: rgb(var(--over)); }
.sub-brand {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: 0.02em;
  color: rgb(var(--over));
}
.sub-main {
  width: 100%;
  max-width: 780px;
  margin: 0 auto;
  padding: 96px 24px 60px;
  flex: 1;
}
.sub-badge {
  font-size: 12px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: rgba(var(--over), 0.45);
  text-align: center;
}
.sub-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(34px, 5vw, 52px);
  letter-spacing: 0.04em;
  text-align: center;
  margin-top: 18px;
  color: rgb(var(--over));
}
.sub-subtitle {
  margin-top: 18px;
  text-align: center;
  font-size: 14px;
  line-height: 1.9;
  color: rgba(var(--over), 0.55);
}
.sub-card {
  margin-top: 52px;
  background: var(--paper);
  color: var(--ink);
  border-radius: 20px;
  padding: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.sub-file { display: flex; align-items: center; gap: 16px; }
.sub-file svg { width: 40px; height: 40px; color: var(--ink); }
.sub-file-name { font-size: 17px; font-weight: 600; letter-spacing: 0.02em; text-align: left; }
.sub-file-meta { font-size: 13px; color: var(--mute); margin-top: 3px; text-align: left; }
.sub-btn { margin-top: 30px; background: var(--ink); color: var(--paper); border-color: var(--ink); }
a.dl-broken {
  opacity: .45;
  cursor: not-allowed;
  pointer-events: none;
  text-decoration: line-through;
}
.sub-sha {
  margin-top: 18px;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: #6f6f6f;
  word-break: break-all;
  font-family: ui-monospace, Consolas, monospace;
}
.sub-tip {
  margin-top: 26px;
  text-align: center;
  font-size: 13px;
  color: rgba(var(--over), 0.5);
}
.sub-chips {
  margin-top: 30px;
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
.sub-chips span {
  font-size: 12px;
  letter-spacing: 0.12em;
  border: 1px solid rgba(var(--over), 0.3);
  border-radius: 999px;
  padding: 7px 16px;
  color: rgba(var(--over), 0.75);
}
.sub-note {
  margin-top: 46px;
  border: 1px solid rgba(var(--over), 0.16);
  border-radius: 20px;
  padding: 34px;
}
.sub-note h3 {
  font-size: 15px;
  letter-spacing: 0.1em;
  color: rgb(var(--over));
}
.sub-note p {
  margin-top: 12px;
  font-size: 13px;
  line-height: 2;
  color: rgba(var(--over), 0.55);
}
.sub-note .sub-alt { display: inline-block; margin-top: 18px; color: rgba(var(--over), 0.7); border-color: rgba(var(--over), 0.25); }
.sub-note .sub-alt:hover { color: rgb(var(--over)); border-color: rgb(var(--over)); }
.sub-section { margin-top: 64px; }
.sub-section h2 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: rgb(var(--over));
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(var(--over), 0.14);
}
.sub-list { list-style: none; margin-top: 8px; }
.sub-list li { padding: 20px 0; border-bottom: 1px solid rgba(var(--over), 0.08); }
.sub-list h3 { font-size: 14px; font-weight: 600; letter-spacing: 0.06em; color: rgba(var(--over), 0.9); }
.sub-list p { margin-top: 7px; font-size: 13px; line-height: 1.9; color: rgba(var(--over), 0.5); word-break: break-all; }
.sub-steps { list-style: none; counter-reset: step; margin-top: 8px; }
.sub-steps li {
  position: relative;
  padding: 20px 0 20px 52px;
  border-bottom: 1px solid rgba(var(--over), 0.08);
  font-size: 14px;
  line-height: 1.9;
  color: rgba(var(--over), 0.72);
  counter-increment: step;
}
.sub-steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 22px;
  font-family: var(--serif);
  font-size: 15px;
  color: rgba(var(--over), 0.45);
}
.tl-main { max-width: 860px; }
.tl-product { margin-top: 70px; }
.tl-head { display: flex; align-items: center; gap: 16px; }
.tl-head h2 {
  font-family: var(--serif);
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: rgb(var(--over));
}
.tl-status {
  font-size: 11px;
  letter-spacing: 0.2em;
  padding: 5px 14px;
  border-radius: 999px;
  border: 1px solid rgba(var(--over), 0.35);
  color: rgba(var(--over), 0.8);
  white-space: nowrap;
}
.tl-status--live { background: rgb(var(--over)); color: var(--ink); border-color: rgb(var(--over)); }
.tl-desc { margin-top: 12px; font-size: 13px; color: rgba(var(--over), 0.45); letter-spacing: 0.04em; }
.tl-line {
  margin-top: 30px;
  margin-left: 6px;
  padding-left: 34px;
  border-left: 1px solid rgba(var(--over), 0.16);
}
.tl-item { position: relative; padding-bottom: 34px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-dot {
  position: absolute;
  left: -40px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid rgba(var(--over), 0.7);
}
.tl-item:first-child .tl-dot { background: rgb(var(--over)); border-color: rgb(var(--over)); }
.tl-meta { display: flex; align-items: baseline; gap: 14px; }
.tl-ver { font-family: var(--serif); font-weight: 700; font-size: 19px; color: rgb(var(--over)); }
.tl-date { font-size: 12px; letter-spacing: 0.14em; color: rgba(var(--over), 0.54); }
.tl-date--beta {
  padding: 2px 9px;
  border: 1px solid rgba(var(--over), 0.34);
  border-radius: 999px;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: rgba(var(--over), 0.72);
}
.tl-card h3 { margin-top: 10px; font-size: 15px; font-weight: 600; letter-spacing: 0.05em; color: rgba(var(--over), 0.9); }
.tl-card p { margin-top: 8px; font-size: 13px; line-height: 1.9; color: rgba(var(--over), 0.5); max-width: 660px; }
.sub-footer {
  padding: 30px 7vw;
  border-top: 1px solid rgba(var(--over), 0.1);
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(var(--over), 0.5);
}
@media (max-width: 520px) {
  .sub-main { padding-top: 64px; }
.sub-card { padding: 30px 22px; }
.sub-file { flex-direction: column; text-align: center; }
.sub-file-name, .sub-file-meta { text-align: center; }
}
@media (max-width: 640px) {
  .sub-top {
    min-height: 64px;
    padding: calc(14px + env(safe-area-inset-top)) 128px 14px 18px;
  }
.sub-id { gap: 10px; min-width: 0; }
.sub-id .sub-brand { padding-right: 10px; font-size: 17px; }
.sub-id .page-tag { display: none; }
.sub-back {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    font-size: 12px;
    letter-spacing: .06em;
    white-space: nowrap;
  }
.sub-main {
    width: 100%;
    max-width: 780px;
    min-width: 0;
    padding: 72px 20px calc(52px + env(safe-area-inset-bottom));
  }
.sub-title {
    margin-top: 14px;
    font-size: clamp(30px, 8.8vw, 38px);
    line-height: 1.28;
    letter-spacing: .02em;
    overflow-wrap: anywhere;
  }
.sub-subtitle { margin-top: 14px; font-size: 13px; line-height: 1.75; }
.sub-card {
    width: 100%;
    min-width: 0;
    margin-top: 36px;
    padding: 28px 20px;
    border-radius: 16px;
  }
.sub-file { min-width: 0; flex-direction: column; gap: 12px; text-align: center; }
.sub-file > div { min-width: 0; }
.sub-file-name, .sub-file-meta { max-width: 100%; text-align: center; overflow-wrap: anywhere; }
.sub-file-name { font-size: 16px; }
.sub-file-meta { font-size: 12px; }
.sub-btn { width: 100%; max-width: 240px; min-height: 50px; }
.sub-sha { width: 100%; margin-top: 16px; font-size: 10px; line-height: 1.7; }
.sub-tip { margin-top: 22px; font-size: 12px; line-height: 1.75; }
.sub-chips { margin-top: 22px; gap: 8px; }
.sub-chips span { padding: 6px 13px; font-size: 11px; }
.sub-note { margin-top: 36px; padding: 26px 20px; border-radius: 16px; }
.sub-note h3 { font-size: 14px; }
.sub-note p { font-size: 13px; line-height: 1.8; }
.sub-section { margin-top: 48px; }
.sub-section h2 { padding-bottom: 12px; font-size: 20px; }
.sub-list li { padding: 18px 0; }
.sub-list h3 { font-size: 14px; }
.sub-list p {
    margin-top: 6px;
    font-size: 13px;
    line-height: 1.75;
    word-break: normal;
    overflow-wrap: anywhere;
  }
.sub-steps li {
    padding: 18px 0 18px 42px;
    font-size: 13px;
    line-height: 1.8;
  }
.sub-steps li::before { top: 19px; font-size: 14px; }
.tl-product { margin-top: 48px; }
.tl-head { align-items: flex-start; flex-wrap: wrap; gap: 10px; }
.tl-head h2 { font-size: 22px; line-height: 1.35; overflow-wrap: anywhere; }
.tl-status { padding: 4px 10px; font-size: 10px; letter-spacing: .12em; }
.tl-desc { margin-top: 10px; line-height: 1.8; }
.tl-line { margin-top: 26px; margin-left: 0; padding-left: 24px; }
.tl-item { padding-bottom: 30px; }
.tl-dot { left: -30px; top: 6px; width: 10px; height: 10px; }
.tl-meta { gap: 10px; }
.tl-ver { font-size: 18px; }
.tl-card h3 { font-size: 14.5px; line-height: 1.6; }
.tl-card p { font-size: 13px; line-height: 1.78; }
.sub-footer {
    padding: 24px 20px calc(24px + env(safe-area-inset-bottom));
    font-size: 11.5px;
    line-height: 1.7;
  }
.switcher {
    top: calc(10px + env(safe-area-inset-top));
    right: 12px;
    gap: 8px;
  }
.sw-btn { height: 36px; min-width: 36px; padding: 0 11px; }
.sw-theme { width: 36px; }
}
@media (hover: none) {
  .tl-card:hover { transform: none; }
.sub-list li:hover, .sub-steps li:hover { background-color: transparent; }
}
.switcher {
  position: fixed;
  top: 14px;
  right: 18px;
  z-index: 95;
  display: flex;
  align-items: center;
  gap: 10px;
  mix-blend-mode: difference;
}
.sw-btn {
  height: 30px;
  min-width: 30px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(var(--over), 0.55);
  border-radius: 999px;
  background: transparent;
  color: rgb(var(--over));
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: transform 0.3s, border-color 0.3s;
}
.sw-btn:hover { transform: translateY(-1px); border-color: rgb(var(--over)); }
.sw-theme { padding: 0; width: 30px; }
.sw-theme svg {
  width: 14px;
  height: 14px;
  display: block;
  transition: transform 0.55s cubic-bezier(0.65, 0, 0.35, 1);
}
html[data-theme="light"] .sw-theme svg { transform: rotate(180deg); }
@media (max-width: 520px) { .switcher { top: calc(10px + env(safe-area-inset-top)); right: 12px; }
}
body { transition: opacity 0.55s cubic-bezier(0.4, 0, 0.2, 1); }
html.switching body { opacity: 0; }
html[data-theme="light"] {
  --ink: #ffffff;
  --paper: #0a0a0a;
  --paper-rgb: 10, 10, 10;
  --ink-rgb: 255, 255, 255;
  --over: 10, 10, 10;
  --grid-dot: 10, 10, 10;
}
@media (prefers-reduced-motion: reduce) {
  body { transition: none; }
.sw-theme svg { transition: none; }
}
.bg-wireframe {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  mix-blend-mode: difference;
}
.bg-geometry {
  position: fixed;
  inset: 0;
  z-index: -1;
  display: grid;
  place-items: center;
  pointer-events: none;
  color: rgba(var(--over), .20);
}
.bg-geometry svg {
  width: min(130vmin, 1200px);
  height: min(130vmin, 1200px);
}
.bg-geometry .wire {
  transform-origin: 50% 50%;
}
.bg-geometry .ring {
  transform-origin: 600px 600px;
  will-change: transform;
}
.bg-geometry .ring-a { animation: site-geo-spin 120s linear infinite; }
.bg-geometry .ring-b { animation: site-geo-spin-rev 76s linear infinite; }
.bg-geometry .ring-c { animation: site-geo-spin-rev 96s linear infinite; }
.bg-geometry .ring-d { animation: site-geo-spin-tilt 140s linear infinite; }
.bg-geometry circle,
.bg-geometry ellipse {
  fill: none;
  stroke: currentColor;
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}
.bg-geometry .dot {
  fill: currentColor;
  stroke: none;
  animation: site-geo-pulse 4.5s ease-in-out infinite;
  transform-origin: 600px 600px;
}
@keyframes site-geo-spin      { from { transform: rotate(0deg);   }
to { transform: rotate(360deg);  }
}
@keyframes site-geo-spin-rev  { from { transform: rotate(360deg); }
to { transform: rotate(0deg);    }
}
@keyframes site-geo-spin-tilt { from { transform: rotate(45deg);  }
to { transform: rotate(405deg); }
}
@keyframes site-geo-pulse {
  0%, 100% { opacity: .45; transform: scale(1);   }
50%      { opacity: 1;   transform: scale(1.6); }
}
.cursor-invert {
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: clamp(180px, 22vw, 280px);
  height: clamp(180px, 22vw, 280px);
  margin: calc(clamp(180px, 22vw, 280px) / -2) 0 0 calc(clamp(180px, 22vw, 280px) / -2);
  border-radius: 50%;
  background: #fff;
  mix-blend-mode: difference;
  pointer-events: none;
  opacity: 0;
  will-change: transform;
  transition: opacity .2s ease;
}
.cursor-invert.is-active { opacity: 1; }
@media (hover: none) {
  .cursor-invert { display: none; }
}
.hx-group {
  display: flex;
  height: 120px;
  gap: 4px;
  margin: 28px auto 0;
  max-width: 640px;
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
}
.hx-strip {
  flex-grow: 1;
  flex-shrink: 1;
  flex-basis: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--ink);
  cursor: default;
  transition: flex-grow 0.5s cubic-bezier(0.22, 1, 0.36, 1),
              background-color 0.5s;
  user-select: none;
}
.hx-group:hover .hx-strip { flex-grow: 0.6; }
.hx-strip:hover { flex-grow: 4 !important; }
.hx-s1 { background: rgba(var(--ink-rgb), 0.06); }
.hx-s2 { background: rgba(var(--ink-rgb), 0.12); }
.hx-s3 { background: rgba(var(--ink-rgb), 0.18); }
.hx-s4 { background: rgba(var(--ink-rgb), 0.06); }
.hx-strip:hover { background: rgba(var(--ink-rgb), 0.28); }
@media (max-width: 900px) {
  .hx-group { height: 80px; margin-top: 14px; border-radius: 12px; }
.hx-strip { font-size: 10px; letter-spacing: 0.18em; }
}
@media (prefers-reduced-motion: reduce) {
  .hx-strip { transition: none; }
}