:root {
  --bg: #ffffff;
  --bg-soft: #f6f7f8;
  --ink: #101214;
  --muted: #5d636b;
  --line: #dfe3e7;
  --line-dark: #2b3138;
  --navy: #111927;
  --navy-soft: #1c2635;
  --line-green: #06c755;
  --white: #ffffff;
  --radius: 8px;
  --shadow: 0 24px 80px rgba(13, 19, 28, 0.14);
  --content: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

img,
svg {
  max-width: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.8;
  letter-spacing: 0;
}

@keyframes heroTextIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes visualIn {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes softFloat {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

@keyframes ctaPulse {
  0%,
  100% {
    box-shadow: 0 14px 34px rgba(6, 199, 85, 0.22);
  }

  50% {
    box-shadow: 0 18px 48px rgba(6, 199, 85, 0.34);
  }
}

.motion-ready .animate-item {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 720ms ease, transform 720ms ease, box-shadow 240ms ease, border-color 240ms ease;
  transition-delay: var(--motion-delay, 0ms);
}

.motion-ready .animate-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.motion-ready .hero-copy > * {
  animation: heroTextIn 720ms ease both;
}

.motion-ready .hero-copy > *:nth-child(1) {
  animation-delay: 80ms;
}

.motion-ready .hero-copy > *:nth-child(2) {
  animation-delay: 170ms;
}

.motion-ready .hero-copy > *:nth-child(3) {
  animation-delay: 260ms;
}

.motion-ready .hero-copy > *:nth-child(4) {
  animation-delay: 350ms;
}

.motion-ready .hero-copy > *:nth-child(5) {
  animation-delay: 440ms;
}

.motion-ready .hero-copy > *:nth-child(6) {
  animation-delay: 530ms;
}

.motion-ready .hero-visual img {
  animation: visualIn 900ms 260ms ease both, softFloat 7s 1.2s ease-in-out infinite;
  will-change: transform;
}

.motion-ready .line-button {
  animation: ctaPulse 3.2s ease-in-out infinite;
}

.motion-ready .is-visible .process-visual,
.motion-ready .issue-board.is-visible .issue-illustration,
.motion-ready .plan-card.is-visible .plan-visual,
.motion-ready .line-card.is-visible .line-qr {
  animation: visualIn 760ms ease both;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  width: 100%;
  padding: 18px max(24px, calc((100vw - var(--content)) / 2));
  border-bottom: 1px solid rgba(223, 227, 231, 0.86);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
  transition: box-shadow 180ms ease, padding 180ms ease;
}

.site-header.is-scrolled {
  padding-top: 12px;
  padding-bottom: 12px;
  box-shadow: 0 12px 42px rgba(13, 19, 28, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
}

.brand-logo {
  display: block;
  width: 236px;
  height: 52px;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 6px;
  background: var(--ink);
  color: var(--white);
  font-size: 13px;
  line-height: 1;
}

.header-nav {
  display: flex;
  justify-content: flex-end;
  gap: 26px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

.header-nav a {
  position: relative;
  transition: color 180ms ease;
}

.header-nav a:hover {
  color: var(--ink);
}

.header-nav a::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 1px;
  background: var(--ink);
  content: "";
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 220ms ease;
}

.header-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left center;
}

.header-cta {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 0 18px;
  background: var(--ink);
  color: var(--white);
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
}

.line-button,
.header-cta.line-link {
  border-color: var(--line-green);
  background: var(--line-green);
  color: var(--white);
  box-shadow: 0 14px 34px rgba(6, 199, 85, 0.22);
}

.line-button:hover,
.header-cta.line-link:hover {
  box-shadow: 0 18px 42px rgba(6, 199, 85, 0.28);
}

.section {
  width: min(calc(100% - 40px), var(--content));
  margin-inline: auto;
  padding: 112px 0;
}

.section[id] {
  scroll-margin-top: 104px;
}

.light-band[id],
.dark-band[id] {
  scroll-margin-top: 0;
}

.hero {
  position: relative;
  display: block;
  width: 100%;
  max-width: none;
  min-height: calc(100svh - 118px);
  overflow: hidden;
  padding: 84px max(24px, calc((100vw - var(--content)) / 2)) 72px;
  background: #fbfcfd;
}

.hero::before {
  position: absolute;
  inset: 0 36% 0 0;
  z-index: 1;
  background: rgba(251, 252, 253, 0.9);
  content: "";
  pointer-events: none;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 660px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 28px;
  font-size: clamp(52px, 8vw, 94px);
  font-weight: 800;
  line-height: 1.06;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(32px, 4.2vw, 56px);
  font-weight: 800;
  line-height: 1.22;
}

h3 {
  margin-bottom: 18px;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.3;
}

.hero-lead {
  max-width: 620px;
  margin-bottom: 32px;
  color: #343941;
  font-size: 17px;
  font-weight: 500;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: -12px 0 28px;
}

.hero-badges span {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  border: 1px solid #cfd5dc;
  border-radius: 999px;
  padding: 0 13px;
  background: rgba(255, 255, 255, 0.84);
  color: #252a31;
  font-size: 12px;
  font-weight: 800;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 0 24px;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--ink);
  color: var(--white);
  box-shadow: 0 14px 34px rgba(16, 18, 20, 0.2);
}

.button-primary:hover {
  box-shadow: 0 18px 42px rgba(16, 18, 20, 0.28);
}

.button-secondary {
  background: var(--white);
  color: var(--ink);
}

.button-secondary:hover {
  background: var(--bg-soft);
}

.notice {
  margin-top: 28px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

.notice p {
  margin: 0;
}

.hero-visual {
  position: absolute;
  top: 50%;
  right: max(-48px, calc((100vw - var(--content)) / 2 - 124px));
  z-index: 0;
  width: min(64vw, 940px);
  margin: 0;
  transform: translateY(-49%);
}

.hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1568 / 1003;
  object-fit: cover;
  border-radius: 8px;
  filter: drop-shadow(0 34px 70px rgba(13, 19, 28, 0.12));
}

.section-heading {
  max-width: 820px;
  margin-bottom: 46px;
}

.section-lead {
  max-width: 720px;
  margin: 18px 0 0;
  color: #343941;
  font-size: 16px;
  font-weight: 500;
}

.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.82fr);
  gap: 56px;
  align-items: center;
}

.align-start {
  align-items: start;
}

.body-copy {
  color: #343941;
  font-size: 16px;
}

.body-copy p:last-child {
  margin-bottom: 0;
}

.wide-copy {
  max-width: 850px;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: #252a31;
  font-weight: 600;
}

.check-list li::before {
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 12px;
  height: 1px;
  background: var(--ink);
  content: "";
}

.muted-list {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  background: var(--bg-soft);
}

.issue-board {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.issue-board .muted-list {
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
}

.issue-illustration {
  position: relative;
  min-height: 210px;
  background:
    linear-gradient(90deg, rgba(16, 18, 20, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(16, 18, 20, 0.04) 1px, transparent 1px),
    #ffffff;
  background-size: 34px 34px;
}

.issue-screen {
  position: absolute;
  top: 36px;
  left: 36px;
  width: 46%;
  height: 118px;
  border: 1px solid #bfc7d0;
  border-radius: 8px;
  background:
    linear-gradient(#111927, #111927) 24px 28px / 68% 8px no-repeat,
    linear-gradient(#c7ced7, #c7ced7) 24px 56px / 52% 6px no-repeat,
    linear-gradient(#d9dee5, #d9dee5) 24px 78px / 72% 6px no-repeat,
    #f8f9fa;
  box-shadow: 0 18px 50px rgba(13, 19, 28, 0.1);
}

.issue-lock {
  position: absolute;
  right: 46px;
  top: 52px;
  width: 86px;
  height: 80px;
  border: 2px solid #111927;
  border-radius: 8px;
}

.issue-lock::before {
  position: absolute;
  top: -34px;
  left: 19px;
  width: 44px;
  height: 42px;
  border: 2px solid #111927;
  border-bottom: 0;
  border-radius: 26px 26px 0 0;
  content: "";
}

.issue-lock::after {
  position: absolute;
  top: 30px;
  left: 38px;
  width: 9px;
  height: 20px;
  border-radius: 99px;
  background: #111927;
  content: "";
}

.issue-chart {
  position: absolute;
  right: 34px;
  bottom: 28px;
  width: 48%;
  height: 72px;
  border-bottom: 1px solid #9ea7b2;
  border-left: 1px solid #9ea7b2;
}

.issue-chart::before {
  position: absolute;
  inset: 14px 16px;
  border-top: 2px solid #111927;
  border-right: 2px solid #111927;
  content: "";
  transform: skew(-24deg) rotate(-9deg);
  transform-origin: left center;
}

.dark-band {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 116px max(24px, calc((100vw - var(--content)) / 2));
  background: var(--navy);
  color: var(--white);
}

.dark-band .eyebrow,
.dark-band .body-copy,
.dark-band p {
  color: #c8d0da;
}

.dark-band h2 {
  color: var(--white);
}

.roadmap {
  padding-bottom: 54px;
}

.mt5-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.mt5-shot {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  transition: border-color 220ms ease, box-shadow 220ms ease, transform 220ms ease;
}

.mt5-shot img {
  display: block;
  width: 100%;
  aspect-ratio: 900 / 560;
  object-fit: cover;
}

.mt5-shot figcaption {
  border-top: 1px solid var(--line);
  padding: 16px 18px;
  color: #252a31;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.6;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.process-card {
  position: relative;
  overflow: hidden;
  min-height: 330px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  background: #ffffff;
  transition: border-color 220ms ease, box-shadow 220ms ease, transform 220ms ease;
}

.process-card.is-visible:hover,
.learn-card.is-visible:hover,
.plan-card.is-visible:hover,
.mt5-shot.is-visible:hover,
.spec-card.is-visible:hover,
.feature-card.is-visible:hover,
.api-card.is-visible:hover,
.line-card.is-visible:hover {
  border-color: #c0c8d2;
  box-shadow: 0 18px 48px rgba(13, 19, 28, 0.08);
  transform: translateY(-4px);
}

.process-card span {
  display: block;
  margin: 20px 0 10px;
  color: var(--line-green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.process-card h3 {
  margin-bottom: 10px;
  font-size: 21px;
}

.process-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.process-visual {
  position: relative;
  overflow: hidden;
  height: 126px;
  border: 1px solid #d7dce2;
  border-radius: 8px;
  background: #f8f9fa;
}

.process-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.visual-plan::before,
.visual-ai::before,
.visual-test::before,
.visual-loop::before {
  position: absolute;
  content: "";
}

.visual-plan::before {
  inset: 24px 30px;
  border-left: 2px solid #111927;
  border-bottom: 2px solid #111927;
  box-shadow: 28px -18px 0 -12px #111927, 58px 10px 0 -12px #111927, 90px -28px 0 -12px #111927;
}

.visual-plan::after {
  position: absolute;
  right: 24px;
  bottom: 28px;
  width: 72px;
  height: 2px;
  background: #111927;
  content: "";
  transform: rotate(-28deg);
}

.visual-ai::before {
  top: 26px;
  left: 26px;
  width: 68px;
  height: 68px;
  border: 2px solid #111927;
  border-radius: 50%;
  background: radial-gradient(circle at center, #111927 0 5px, transparent 6px);
}

.visual-ai::after {
  position: absolute;
  top: 28px;
  right: 24px;
  width: 42%;
  height: 64px;
  border-radius: 6px;
  background:
    linear-gradient(#111927, #111927) 0 2px / 86% 4px no-repeat,
    linear-gradient(#aeb6c0, #aeb6c0) 0 24px / 100% 3px no-repeat,
    linear-gradient(#cfd5dc, #cfd5dc) 0 42px / 70% 3px no-repeat;
  content: "";
}

.visual-test::before {
  left: 26px;
  bottom: 24px;
  width: 68%;
  height: 58px;
  border-left: 2px solid #111927;
  border-bottom: 2px solid #111927;
  background:
    linear-gradient(145deg, transparent 0 43%, #111927 44% 47%, transparent 48%),
    linear-gradient(25deg, transparent 0 55%, #9ea7b2 56% 58%, transparent 59%);
}

.visual-test::after {
  position: absolute;
  right: 26px;
  top: 26px;
  width: 44px;
  height: 44px;
  border: 10px solid #d6dbe1;
  border-top-color: #111927;
  border-radius: 50%;
  content: "";
}

.visual-loop::before {
  top: 28px;
  left: 34px;
  width: 104px;
  height: 58px;
  border: 2px solid #111927;
  border-right-color: transparent;
  border-radius: 48px;
}

.visual-loop::after {
  position: absolute;
  top: 38px;
  right: 36px;
  width: 52px;
  height: 52px;
  border: 1px solid #c5ccd5;
  border-radius: 8px;
  background:
    linear-gradient(#111927, #111927) 14px 16px / 24px 3px no-repeat,
    linear-gradient(#9ea7b2, #9ea7b2) 14px 30px / 18px 3px no-repeat,
    #ffffff;
  content: "";
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.learn-card {
  position: relative;
  overflow: hidden;
  min-height: 148px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  background: var(--white);
  color: var(--ink);
  font-size: 15px;
  font-weight: 800;
  line-height: 1.45;
  transition: border-color 220ms ease, box-shadow 220ms ease, transform 220ms ease;
}

.learn-card::after {
  position: absolute;
  right: 18px;
  bottom: 16px;
  width: 42px;
  height: 42px;
  border: 1px solid #d7dce2;
  border-radius: 50%;
  background:
    linear-gradient(135deg, transparent 0 48%, #111927 49% 53%, transparent 54%),
    linear-gradient(#f1f3f5, #f1f3f5);
  content: "";
}

.learn-card span {
  display: block;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.plans {
  padding-top: 48px;
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.plan-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px;
  min-width: 0;
  background: var(--white);
  transition: border-color 220ms ease, box-shadow 220ms ease, transform 220ms ease;
}

.plan-visual {
  position: relative;
  height: 142px;
  margin-bottom: 28px;
  overflow: hidden;
  border: 1px solid #d7dce2;
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(16, 18, 20, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(16, 18, 20, 0.04) 1px, transparent 1px),
    #ffffff;
  background-size: 28px 28px;
}

.plan-visual span {
  position: absolute;
  display: block;
  border: 1px solid #bec6cf;
  border-radius: 8px;
  background: #fbfcfd;
  box-shadow: 0 14px 34px rgba(13, 19, 28, 0.08);
}

.plan-visual.solo span:first-child {
  top: 32px;
  left: 34px;
  width: 122px;
  height: 72px;
  background:
    linear-gradient(#111927, #111927) 18px 18px / 68px 5px no-repeat,
    linear-gradient(#b4bcc7, #b4bcc7) 18px 40px / 86px 4px no-repeat,
    #fbfcfd;
}

.plan-visual.solo span:nth-child(2) {
  top: 54px;
  right: 44px;
  width: 88px;
  height: 52px;
}

.plan-visual.solo span:nth-child(3) {
  right: 96px;
  bottom: 34px;
  width: 86px;
  height: 2px;
  border: 0;
  border-radius: 0;
  background: #111927;
  box-shadow: none;
}

.plan-visual.lab span:first-child,
.plan-visual.lab span:nth-child(2),
.plan-visual.lab span:nth-child(3) {
  width: 78px;
  height: 58px;
}

.plan-visual.lab span:first-child {
  top: 30px;
  left: 36px;
}

.plan-visual.lab span:nth-child(2) {
  top: 52px;
  left: 50%;
  transform: translateX(-50%);
}

.plan-visual.lab span:nth-child(3) {
  top: 30px;
  right: 36px;
}

.plan-visual.lab span:nth-child(4) {
  left: 50%;
  bottom: 24px;
  width: 126px;
  height: 2px;
  border: 0;
  border-radius: 0;
  background: #111927;
  box-shadow: none;
  transform: translateX(-50%);
}

.plan-card.featured {
  border-color: #1f2935;
  background: #fbfcfd;
  box-shadow: 0 22px 70px rgba(13, 19, 28, 0.1);
}

.plan-kicker {
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.plan-card p {
  color: #343941;
}

.plan-card .check-list {
  margin-top: 26px;
}

.unified-plan {
  padding: 38px;
}

.unified-plan .plan-visual {
  height: 180px;
}

.plan-content {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: 42px;
  align-items: start;
}

.plan-content .check-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 0;
}

.compliance-text {
  margin: 26px 0 0;
  border-left: 2px solid var(--ink);
  padding-left: 18px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

.light-band {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 112px max(24px, calc((100vw - var(--content)) / 2));
  background: var(--bg-soft);
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.spec-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  background: var(--white);
  transition: border-color 220ms ease, box-shadow 220ms ease, transform 220ms ease;
}

.spec-card span,
.feature-card span,
.api-card span {
  display: block;
  margin-bottom: 12px;
  color: var(--line-green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.spec-card h3 {
  margin-bottom: 18px;
  font-size: 24px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.feature-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  background: #ffffff;
  transition: border-color 220ms ease, box-shadow 220ms ease, transform 220ms ease;
}

.feature-card h3,
.api-card h3 {
  margin-bottom: 14px;
  font-size: 23px;
}

.feature-card ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-card li {
  position: relative;
  padding-left: 18px;
  color: #343941;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.65;
}

.feature-card li::before {
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ink);
  content: "";
}

.api-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.api-card {
  min-height: 236px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  padding: 24px;
  background: rgba(255, 255, 255, 0.04);
  transition: border-color 220ms ease, box-shadow 220ms ease, transform 220ms ease;
}

.api-card p {
  margin: 0;
  color: #c8d0da;
  font-size: 14px;
  line-height: 1.8;
}

.dark-note {
  max-width: 850px;
  margin: 28px 0 0;
  border-left: 2px solid rgba(255, 255, 255, 0.72);
  padding-left: 18px;
  color: #c8d0da;
  font-size: 13px;
  line-height: 1.8;
}

.sticky-heading {
  position: sticky;
  top: 112px;
  margin-bottom: 0;
}

.community-illustration {
  position: relative;
  overflow: hidden;
  min-height: 300px;
  margin-top: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(16, 18, 20, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(16, 18, 20, 0.04) 1px, transparent 1px),
    #ffffff;
  background-size: 32px 32px;
}

.chat-person {
  position: absolute;
  bottom: 36px;
  width: 92px;
  height: 122px;
  border-radius: 46px 46px 14px 14px;
  background: #111927;
}

.chat-person::before {
  position: absolute;
  top: -54px;
  left: 21px;
  width: 50px;
  height: 50px;
  border: 3px solid #111927;
  border-radius: 50%;
  background: #ffffff;
  content: "";
}

.chat-person::after {
  position: absolute;
  top: -34px;
  left: 40px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #111927;
  box-shadow: 18px 0 0 #111927;
  content: "";
}

.person-left {
  left: 42px;
}

.person-right {
  right: 42px;
  background: #e8ebef;
  border: 1px solid #cfd5dc;
}

.person-right::before {
  border-color: #cfd5dc;
}

.person-right::after {
  background: #111927;
  box-shadow: 18px 0 0 #111927;
}

.chat-bubble {
  position: absolute;
  border: 1px solid #cfd5dc;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 18px 44px rgba(13, 19, 28, 0.1);
}

.chat-bubble::after {
  position: absolute;
  bottom: -10px;
  width: 18px;
  height: 18px;
  border-right: 1px solid #cfd5dc;
  border-bottom: 1px solid #cfd5dc;
  background: #ffffff;
  content: "";
  transform: rotate(45deg);
}

.chat-bubble span {
  display: block;
  height: 8px;
  border-radius: 999px;
  background: #cfd5dc;
}

.bubble-main {
  top: 44px;
  left: 86px;
  width: 220px;
  padding: 22px;
}

.bubble-main::after {
  left: 42px;
}

.bubble-main span:first-child {
  width: 128px;
  background: #111927;
}

.bubble-main span:nth-child(2) {
  width: 176px;
  margin-top: 16px;
}

.bubble-main span:nth-child(3) {
  width: 112px;
  margin-top: 16px;
}

.bubble-sub {
  top: 134px;
  right: 74px;
  width: 186px;
  padding: 18px;
}

.bubble-sub::after {
  right: 42px;
}

.bubble-sub span:first-child {
  width: 122px;
  background: var(--line-green);
}

.bubble-sub span:nth-child(2) {
  width: 92px;
  margin-top: 14px;
}

.chat-chart {
  position: absolute;
  left: 50%;
  bottom: 42px;
  width: 128px;
  height: 82px;
  border-left: 2px solid #111927;
  border-bottom: 2px solid #111927;
  transform: translateX(-50%);
}

.chat-chart::before {
  position: absolute;
  inset: 14px 12px;
  border-top: 4px solid #111927;
  border-right: 4px solid #111927;
  content: "";
  transform: skew(-28deg) rotate(-8deg);
}

.chat-chart::after {
  position: absolute;
  right: 4px;
  bottom: 18px;
  width: 12px;
  height: 34px;
  border-radius: 4px;
  background: var(--line-green);
  box-shadow: -32px 18px 0 rgba(6, 199, 85, 0.28);
  content: "";
}

.research-list {
  display: grid;
  gap: 10px;
  margin-top: 30px;
}

.research-list div {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  background: var(--white);
  color: var(--ink);
  font-weight: 700;
}

.comparison-table {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.comparison-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.comparison-row + .comparison-row {
  border-top: 1px solid var(--line);
}

.comparison-row > div {
  min-height: 74px;
  padding: 22px 24px;
  color: #343941;
  font-weight: 600;
}

.comparison-row > div + div {
  border-left: 1px solid var(--line);
  color: var(--ink);
  font-weight: 800;
}

.header-row > div {
  background: var(--ink);
  color: var(--white);
  font-size: 15px;
}

.header-row > div + div {
  border-left-color: #3a3f46;
  color: var(--white);
}

.outcome-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.outcome-list li {
  min-height: 122px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  padding: 22px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--white);
  font-weight: 800;
}

.illustrated-outcomes li {
  display: grid;
  min-height: 190px;
  gap: 18px;
  align-content: start;
}

.illustrated-outcomes strong {
  display: block;
  font-size: 16px;
  line-height: 1.55;
}

.outcome-icon {
  position: relative;
  display: block;
  width: 100%;
  height: 92px;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    rgba(255, 255, 255, 0.035);
  background-size: 24px 24px;
}

.outcome-icon::before,
.outcome-icon::after {
  position: absolute;
  content: "";
}

.icon-build::before {
  left: 26px;
  top: 24px;
  width: 76px;
  height: 44px;
  border: 2px solid #ffffff;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
}

.icon-build::after {
  right: 28px;
  top: 30px;
  width: 46px;
  height: 46px;
  border: 8px solid rgba(255, 255, 255, 0.28);
  border-top-color: var(--line-green);
  border-radius: 50%;
}

.icon-prompt::before {
  left: 26px;
  top: 22px;
  width: 130px;
  height: 48px;
  border: 2px solid #ffffff;
  border-radius: 8px;
}

.icon-prompt::after {
  left: 46px;
  top: 40px;
  width: 78px;
  height: 6px;
  border-radius: 999px;
  background: var(--line-green);
  box-shadow: 0 18px 0 rgba(255, 255, 255, 0.46), 116px 4px 0 2px rgba(255, 255, 255, 0.72);
}

.icon-code::before {
  left: 30px;
  top: 24px;
  width: 150px;
  height: 46px;
  border-left: 4px solid #ffffff;
  border-right: 4px solid #ffffff;
  transform: skew(-14deg);
}

.icon-code::after {
  left: 76px;
  top: 28px;
  width: 76px;
  height: 5px;
  border-radius: 999px;
  background: var(--line-green);
  box-shadow: 0 16px 0 rgba(255, 255, 255, 0.56), 0 32px 0 rgba(255, 255, 255, 0.34);
}

.icon-test::before {
  left: 28px;
  bottom: 24px;
  width: 142px;
  height: 52px;
  border-left: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
}

.icon-test::after {
  left: 48px;
  bottom: 36px;
  width: 104px;
  height: 34px;
  border-top: 4px solid #ffffff;
  border-right: 4px solid var(--line-green);
  transform: skew(-28deg) rotate(-9deg);
}

.icon-review::before {
  left: 30px;
  top: 24px;
  width: 58px;
  height: 58px;
  border: 12px solid rgba(255, 255, 255, 0.28);
  border-top-color: var(--line-green);
  border-radius: 50%;
}

.icon-review::after {
  right: 30px;
  top: 30px;
  width: 92px;
  height: 6px;
  border-radius: 999px;
  background: #ffffff;
  box-shadow: 0 18px 0 rgba(255, 255, 255, 0.56), 0 36px 0 rgba(255, 255, 255, 0.34);
}

.icon-custom::before {
  left: 34px;
  top: 30px;
  width: 58px;
  height: 36px;
  border: 2px solid #ffffff;
  border-radius: 8px;
  box-shadow: 74px 0 0 -2px rgba(255, 255, 255, 0.1), 74px 0 0 0 #ffffff;
}

.icon-custom::after {
  left: 91px;
  top: 46px;
  width: 62px;
  height: 4px;
  border-radius: 999px;
  background: var(--line-green);
}

.faq-list {
  display: grid;
  gap: 10px;
}

details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

summary {
  display: flex;
  min-height: 70px;
  cursor: pointer;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 24px;
  font-weight: 800;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  content: "";
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 160ms ease;
}

details[open] summary::after {
  transform: rotate(225deg) translate(-2px, -2px);
}

details p {
  margin: 0;
  padding: 0 24px 24px;
  color: var(--muted);
}

.final-cta {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(400px, 1fr);
  gap: 56px;
  align-items: start;
  border-top: 1px solid var(--line);
}

.final-copy {
  position: sticky;
  top: 112px;
}

.final-copy p {
  color: #343941;
}

.line-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  background:
    linear-gradient(135deg, rgba(6, 199, 85, 0.08), transparent 46%),
    var(--bg-soft);
  transition: border-color 220ms ease, box-shadow 220ms ease, transform 220ms ease;
}

.line-card-head {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 26px;
}

.line-badge {
  display: grid;
  width: 62px;
  height: 62px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 14px;
  background: var(--line-green);
  color: var(--white);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.line-card-head p {
  margin: 0 0 2px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.line-card-head h3 {
  margin: 0;
  font-size: 24px;
}

.line-qr {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  width: 160px;
  height: 160px;
  margin: 0 auto 28px;
  border: 10px solid var(--white);
  border-radius: 8px;
  padding: 10px;
  background:
    linear-gradient(90deg, #101214 12px, transparent 12px 24px, #101214 24px 36px, transparent 36px),
    linear-gradient(#101214 12px, transparent 12px 24px, #101214 24px 36px, transparent 36px),
    #f8f9fa;
  background-size: 48px 48px;
  box-shadow: 0 20px 54px rgba(13, 19, 28, 0.12);
}

.line-qr span {
  display: block;
  border: 8px solid #101214;
  border-radius: 4px;
  background: #f8f9fa;
}

.line-qr span:nth-child(3) {
  opacity: 0.35;
}

.line-qr span:nth-child(4) {
  border-width: 0;
  background:
    linear-gradient(#101214, #101214) 4px 6px / 42px 8px no-repeat,
    linear-gradient(#101214, #101214) 30px 28px / 22px 8px no-repeat,
    transparent;
}

.line-card .check-list {
  margin-bottom: 24px;
}

.line-card .button {
  width: 100%;
  border-radius: 6px;
}

.line-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  background: var(--bg-soft);
}

.form-row {
  display: grid;
  gap: 8px;
}

.form-row.full {
  grid-column: 1 / -1;
}

label {
  color: #343941;
  font-size: 13px;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #cfd5dc;
  border-radius: 6px;
  padding: 13px 14px;
  background: var(--white);
  color: var(--ink);
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--ink);
  box-shadow: 0 0 0 3px rgba(17, 25, 39, 0.08);
}

textarea {
  resize: vertical;
}

.form-submit {
  grid-column: 1 / -1;
  width: 100%;
  border-radius: 6px;
}

.form-status {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .motion-ready .animate-item {
    opacity: 1;
    transform: none;
  }
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 34px max(24px, calc((100vw - var(--content)) / 2));
  background: var(--ink);
  color: #d3d8df;
}

.site-footer p {
  max-width: var(--content);
  margin: 0 auto;
  font-size: 12px;
  line-height: 1.9;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .header-nav {
    display: none;
  }

  .split-grid,
  .final-cta {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 70px;
    padding-bottom: 62px;
  }

  .hero::before {
    inset: 0 22% 0 0;
  }

  .hero-visual {
    right: -160px;
    width: min(78vw, 760px);
    opacity: 0.7;
  }

  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .plan-grid,
  .mt5-gallery-grid,
  .spec-grid,
  .feature-grid,
  .api-grid,
  .outcome-list {
    grid-template-columns: 1fr;
  }

  .plan-content {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .plan-content .check-list {
    grid-template-columns: 1fr;
  }

  .sticky-heading,
  .final-copy {
    position: static;
  }
}

@media (max-width: 820px) {
  .site-header {
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 10px;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .brand-logo {
    width: 220px;
    height: auto;
  }

  .header-cta {
    width: min(100%, 320px);
  }

  .hero {
    padding-top: 48px;
  }
}

@media (max-width: 680px) {
  .site-header {
    padding-inline: 16px;
  }

  .brand-logo {
    width: 206px;
    height: auto;
  }

  .header-cta {
    min-height: 38px;
    padding-inline: 14px;
    font-size: 12px;
  }

  .section {
    width: min(calc(100% - 32px), var(--content));
    padding: 72px 0;
  }

  .section[id] {
    scroll-margin-top: 126px;
  }

  .light-band[id],
  .dark-band[id] {
    scroll-margin-top: 0;
  }

  .hero {
    width: 100%;
    padding-top: 54px;
    padding-inline: 16px;
    padding-bottom: 56px;
  }

  .hero::before {
    display: none;
  }

  .hero-copy {
    max-width: none;
  }

  .hero-visual {
    position: relative;
    top: auto;
    right: auto;
    width: 100%;
    margin-top: 34px;
    opacity: 1;
    transform: none;
  }

  .hero-visual img {
    min-height: 250px;
    object-position: 57% center;
  }

  h1 {
    font-size: 48px;
  }

  h2 {
    font-size: 32px;
  }

  .hero-lead {
    font-size: 15px;
  }

  .hero-badges {
    gap: 7px;
  }

.hero-badges span {
    min-height: 32px;
    padding-inline: 11px;
    font-size: 11px;
  }

  .cta-row {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .issue-illustration {
    min-height: 180px;
  }

  .community-illustration {
    min-height: 240px;
    margin-top: 26px;
  }

  .chat-person {
    bottom: 28px;
    width: 70px;
    height: 94px;
  }

  .chat-person::before {
    top: -42px;
    left: 16px;
    width: 38px;
    height: 38px;
  }

  .chat-person::after {
    top: -27px;
    left: 31px;
    width: 9px;
    height: 9px;
    box-shadow: 14px 0 0 #111927;
  }

  .person-left {
    left: 24px;
  }

  .person-right {
    right: 24px;
  }

  .bubble-main {
    top: 30px;
    left: 50px;
    width: 178px;
    padding: 16px;
  }

  .bubble-sub {
    top: 108px;
    right: 46px;
    width: 156px;
    padding: 14px;
  }

  .chat-chart {
    bottom: 30px;
    width: 98px;
    height: 62px;
  }

  .issue-screen {
    top: 34px;
    left: 22px;
    width: 50%;
    height: 104px;
  }

  .issue-lock {
    right: 26px;
    top: 56px;
    width: 66px;
    height: 62px;
  }

  .issue-lock::before {
    top: -28px;
    left: 14px;
    width: 34px;
    height: 34px;
  }

  .issue-lock::after {
    top: 23px;
    left: 28px;
  }

  .issue-chart {
    right: 22px;
    bottom: 24px;
    height: 58px;
  }

  .dark-band,
  .light-band {
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 78px 16px;
  }

  .process-grid,
  .card-grid {
    grid-template-columns: 1fr;
  }

  .learn-card {
    min-height: 112px;
  }

  .plan-card {
    padding: 24px;
  }

  .unified-plan {
    padding: 24px;
  }

  .unified-plan .plan-visual {
    height: 142px;
  }

  .plan-visual {
    height: 124px;
  }

  .spec-card,
  .feature-card,
  .api-card {
    padding: 22px;
  }

  .api-card {
    min-height: auto;
  }

  .line-card {
    padding: 22px;
  }

  .line-card-head {
    align-items: flex-start;
  }

  .line-card-head h3 {
    font-size: 21px;
  }

  .line-qr {
    width: 144px;
    height: 144px;
    gap: 10px;
    margin-bottom: 24px;
  }

  .comparison-table {
    border: 0;
    border-radius: 0;
  }

  .comparison-row {
    grid-template-columns: 1fr;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
  }

  .comparison-row + .comparison-row {
    margin-top: 10px;
    border-top: 1px solid var(--line);
  }

  .comparison-row > div + div {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .header-row {
    display: none;
  }

  .comparison-row > div::before {
    display: block;
    margin-bottom: 6px;
    color: var(--muted);
    font-size: 11px;
  font-weight: 800;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.hero-badges span:hover {
  border-color: #aeb6c0;
  background: #ffffff;
  transform: translateY(-2px);
}

  .comparison-row > div:first-child::before {
    content: "一般的なEA購入";
  }

  .comparison-row > div:nth-child(2)::before {
    content: "AI×EA開発スクール";
  }

  summary {
    align-items: flex-start;
    min-height: auto;
    padding: 18px;
  }

  details p {
    padding: 0 18px 20px;
  }

  .contact-form {
    grid-template-columns: 1fr;
    padding: 20px;
  }
}

@media (max-width: 420px) {
  .site-header {
    align-items: stretch;
  }

  .brand {
    justify-content: center;
  }

  .brand-logo {
    width: 186px;
  }

  .header-cta {
    width: 100%;
  }

  .section {
    width: min(calc(100% - 28px), var(--content));
    padding: 64px 0;
  }

  .hero {
    width: 100%;
    max-width: none;
    padding-inline: 14px;
    padding-top: 42px;
  }

  .dark-band,
  .light-band {
    width: 100%;
    max-width: none;
    margin: 0;
  }

  .eyebrow {
    margin-bottom: 12px;
    font-size: 11px;
  }

  h1 {
    font-size: 41px;
    line-height: 1.08;
  }

  h2 {
    font-size: 29px;
  }

  h3 {
    font-size: 23px;
  }

  .hero-lead,
  .body-copy,
  .section-lead {
    font-size: 14px;
  }

  .button {
    min-height: 52px;
    padding-inline: 16px;
    font-size: 14px;
  }

  .notice {
    font-size: 11px;
  }

  .hero-visual img {
    min-height: 220px;
  }

  .section-heading {
    margin-bottom: 34px;
  }

  .muted-list,
  .plan-card,
  .spec-card,
  .feature-card,
  .api-card {
    padding: 20px;
  }

  .process-card {
    min-height: auto;
    padding: 18px;
  }

  .process-visual {
    height: 104px;
  }

  .visual-plan::before {
    inset: 24px 22px;
    box-shadow: 22px -14px 0 -10px #111927, 48px 8px 0 -10px #111927, 76px -22px 0 -10px #111927;
  }

  .visual-loop::before {
    left: 24px;
    width: 90px;
  }

  .learn-card {
    min-height: 104px;
    padding: 18px;
  }

  .learn-card::after {
    width: 34px;
    height: 34px;
  }

  .plan-visual.solo span:first-child {
    left: 20px;
    width: 106px;
  }

  .plan-visual.solo span:nth-child(2) {
    right: 22px;
    width: 76px;
  }

  .plan-visual.lab span:first-child {
    left: 18px;
  }

  .plan-visual.lab span:nth-child(3) {
    right: 18px;
  }

  .comparison-row > div,
  summary {
    padding: 16px;
  }

  details p {
    padding: 0 16px 18px;
  }

  .outcome-list li {
    min-height: auto;
    padding: 18px;
  }

  .illustrated-outcomes li {
    min-height: auto;
  }

  .outcome-icon {
    height: 82px;
  }

  .final-cta {
    gap: 34px;
  }

  .line-card {
    padding: 18px;
  }

  .line-card-head {
    gap: 12px;
  }

  .line-badge {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    font-size: 12px;
  }

  .line-card-head h3 {
    font-size: 19px;
    line-height: 1.35;
  }

  .line-qr {
    width: 132px;
    height: 132px;
    border-width: 8px;
    padding: 8px;
  }

  .site-footer {
    padding-inline: 16px;
  }
}

@media (max-width: 340px) {
  .brand-logo {
    width: 168px;
  }

  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 27px;
  }

  .hero-badges span {
    width: 100%;
    justify-content: center;
  }

  .line-card-head {
    display: grid;
    justify-items: center;
    text-align: center;
  }
}