/* ===========================
   CSS Custom Properties
   =========================== */
:root {
  --main: #002D5B;
  --accent: #8B5CF6;
  --accent-dark: #7C3AED;
  --sub-bg: #F4F7FA;
  --text: #334155;
  --text-sub: #6B7280;
  --white: #FFFFFF;
  --border: #E2E8F0;
  --product: #8B5CF6;
}

/* ===========================
   Reset & Base
   =========================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans JP', sans-serif;
  min-height: 100vh;
  background: var(--white);
  color: var(--text);
  line-height: 1.6;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
button { background: none; border: none; cursor: pointer; font-family: inherit; }
table { border-collapse: collapse; }

/* ===========================
   Layout
   =========================== */
.inner {
  max-width: 1120px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.inner--narrow {
  max-width: 960px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.section {
  width: 100%;
  padding: 80px 24px;
}
@media (min-width: 820px) {
  .inner, .inner--narrow { padding-left: 40px; padding-right: 40px; }
  .section { padding: 100px 24px; }
}
.section--sm { padding: 48px 24px; }
@media (min-width: 820px) {
  .section--sm { padding: 64px 24px; }
}
.section--bg { background: var(--sub-bg); }
.section--dark { background: var(--main); position: relative; overflow: hidden; }
.section--gradient-white { background: linear-gradient(135deg, var(--white) 0%, var(--sub-bg) 100%); }

/* ===========================
   Section Header
   =========================== */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header--sm { margin-bottom: 24px; }
.section-label {
  display: inline-flex;
  align-items: center;
  border-radius: 9999px;
  padding: 6px 16px;
  margin-bottom: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  background: rgba(139,92,246,0.08);
  color: var(--accent);
}
.section-label--dark {
  background: rgba(139,92,246,0.15);
}
.section-title {
  font-size: 26px;
  font-weight: 900;
  line-height: 1.4;
  color: var(--main);
}
@media (min-width: 820px) {
  .section-title { font-size: 30px; }
}
.section-title--white { color: var(--white); }
.section-title__accent { color: var(--accent); }
.section-subtitle {
  margin-top: 12px;
  font-size: 15px;
  color: var(--text-sub);
}
.section-subtitle--white { color: rgba(255,255,255,0.6); }
.section-desc {
  margin-top: 20px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(255,255,255,0.7);
}
.section-desc--dark { color: var(--text-sub); }

/* ===========================
   Grid Systems
   =========================== */
.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 820px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 820px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}
.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 480px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 820px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}
.grid-5 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
@media (min-width: 820px) {
  .grid-5 { grid-template-columns: repeat(5, 1fr); }
}
.grid-2x3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 480px) {
  .grid-2x3 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 820px) {
  .grid-2x3 { grid-template-columns: repeat(3, 1fr); }
}

/* Feature row (alternating image/text) */
.feature-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
  padding: 48px 0;
  border-bottom: 1px solid var(--border);
}
@media (min-width: 820px) {
  .feature-row { grid-template-columns: 1fr 1fr; padding: 64px 0; }
}
.feature-row--last { border-bottom: none; }
/* モバイル: 常にテキスト上・SVG下 */
.feature-row__content { order: 1; }
.feature-row__visual { order: 2; }
/* デスクトップ: reverse時のみSVG左・テキスト右 */
@media (min-width: 820px) {
  .feature-row__content { order: unset; }
  .feature-row__visual { order: unset; }
  .feature-row--reverse .feature-row__visual { order: 1; }
  .feature-row--reverse .feature-row__content { order: 2; }
}

/* Hero grid */
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}
.hero-grid > *:first-child {
  justify-self: start;
  text-align: left;
}
@media (min-width: 820px) {
  .hero-grid { grid-template-columns: 1.05fr 0.95fr; }
}

/* ===========================
   Cards
   =========================== */
.card {
  background: var(--white);
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 2px 16px rgba(0,45,91,0.06);
}
.card--sm {
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 2px 12px rgba(0,45,91,0.06);
}
.card--summary {
  border-radius: 14px;
  padding: 20px;
  background: var(--sub-bg);
  border: 1px solid var(--border);
}
.card--summary-accent {
  border-radius: 14px;
  padding: 24px;
  background: rgba(139,92,246,0.05);
  border: 1px solid rgba(139,92,246,0.15);
  text-align: center;
}
.card__badge-num {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 900;
  color: var(--accent);
  background: rgba(139,92,246,0.08);
  flex-shrink: 0;
}
.card__header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}
.card__title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--main);
}
.card__text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-sub);
}

/* Feature number badge */
.feature-num {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--main), var(--accent));
  color: var(--white);
}
.feature-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.feature-title {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 16px;
  color: var(--main);
}
@media (min-width: 820px) {
  .feature-title { font-size: 22px; }
}
.feature-text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-sub);
}
.feature-text + .feature-text { margin-top: 12px; }
.feature-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

/* Feature icon area */
.feature-icon-area {
  width: 100%;
  height: 120px;
  border-radius: 12px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #F8FAFC;
}
.feature-icon-area svg { width: 64px; height: 64px; }

/* Feature card small */
.feature-card__title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--main);
}
.feature-card__text {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-sub);
}

/* Feature visual */
.feature-visual {
  border-radius: 16px;
  overflow: hidden;
  background: var(--sub-bg);
  border: 1px solid var(--border);
}
.feature-visual svg { width: 100%; height: auto; }

/* Use case card */
.use-case-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: rgba(139,92,246,0.08);
}
.use-case-icon svg { width: 20px; height: 20px; }
.use-case-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}
.use-case-title {
  font-size: 15px;
  font-weight: 700;
  padding-top: 8px;
  color: var(--main);
}
.use-case-text {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-sub);
}

/* Ecosystem node */
.eco-node {
  border-radius: 16px;
  padding: 20px;
  text-align: center;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.eco-node:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,45,91,0.12);
}
.eco-node--active {
  background: rgba(139,92,246,0.1);
  border: 1.5px solid rgba(139,92,246,0.4);
}
.eco-node__icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  background: rgba(139,92,246,0.15);
}
.eco-node--active .eco-node__icon { background: rgba(139,92,246,0.25); }
.eco-node__icon svg { width: 20px; height: 20px; }
.eco-node__title {
  font-size: 13px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}
.eco-node--active .eco-node__title { color: var(--accent); }
.eco-node__sub {
  font-size: 11px;
  color: rgba(255,255,255,0.5);
}

/* ===========================
   Comparison Table
   =========================== */
.comp-wrap {
  border-radius: 16px;
  overflow: hidden;
  background: var(--white);
  box-shadow: 0 2px 20px rgba(0,45,91,0.08);
}
.comp-scroll { overflow-x: auto; }
.comp-table { border-collapse: separate; border-spacing: 0; width: 100%; min-width: 600px; }
.comp-table th, .comp-table td { padding: 14px 18px; text-align: left; font-size: 14px; }
.comp-table thead th { background: var(--sub-bg); font-weight: 700; color: var(--main); border-bottom: 2px solid var(--border); }
.comp-table thead th:first-child { border-radius: 12px 0 0 0; }
.comp-table thead th:last-child { border-radius: 0 12px 0 0; background: rgba(139,92,246,0.08); }
.comp-table tbody td { border-bottom: 1px solid var(--border); color: var(--text); }
.comp-table tbody tr:last-child td { border-bottom: none; }
.comp-table tbody tr:last-child td:first-child { border-radius: 0 0 0 12px; }
.comp-table tbody tr:last-child td:last-child { border-radius: 0 0 12px 0; }
.comp-table td:last-child { background: rgba(139,92,246,0.03); font-weight: 500; }
.comp-table .td-bold { color: var(--main); font-weight: 700; }

/* Summary label */
.summary-label {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--accent);
}
.summary-label--dark { color: var(--main); }
.summary-text {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-sub);
}

/* ===========================
   Buttons
   =========================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-family: inherit;
  text-align: center;
  transition: all 0.2s ease;
  cursor: pointer;
}
.btn-primary {
  border-radius: 8px;
  padding: 14px 28px;
  font-size: 15px;
  color: var(--white);
  background: var(--accent);
  border: none;
}
.btn-primary:hover { background: var(--main); }
.btn-outline {
  border-radius: 8px;
  padding: 14px 28px;
  font-size: 15px;
  color: var(--main);
  background: transparent;
  border: 1.5px solid var(--main);
}
.btn-outline:hover { background: var(--main); color: var(--white); }
.btn-primary--pill {
  border-radius: 9999px;
  padding: 8px 20px;
  font-size: 13px;
  color: var(--white);
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border: none;
}
.btn-primary--pill:hover { opacity: 0.85; }
.btn-outline--pill {
  border-radius: 9999px;
  padding: 8px 20px;
  font-size: 13px;
  color: var(--main);
  background: transparent;
  border: 1.5px solid var(--main);
}
.btn-outline--pill:hover { background: var(--main); color: var(--white); }
.btn-icon { width: 16px; height: 16px; }

/* ===========================
   Header
   =========================== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  background: var(--white);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.header__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
}
@media (min-width: 820px) {
  .header__inner { padding: 12px 32px; }
}
.logo-link { flex-shrink: 0; }
.logo-img { height: 24px; width: auto; }
@media (min-width: 820px) {
  .logo-img { height: 28px; }
}

/* Desktop Nav */
.nav-desktop {
  display: none;
  align-items: center;
  gap: 4px;
}
@media (min-width: 820px) {
  .nav-desktop { display: flex; }
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 4px;
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  transition: background 0.15s;
}
.nav-item:hover { background: #F8FAFC; }
.nav-item__arrow {
  width: 14px;
  height: 14px;
  transition: transform 0.2s;
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}
.nav-dropdown__menu {
  visibility: hidden;
  opacity: 0;
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 4px;
  min-width: 270px;
  border-radius: 12px;
  background: var(--white);
  padding: 8px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
  border: 1px solid var(--border);
  transition: all 0.2s;
  z-index: 60;
}
.nav-dropdown:hover .nav-dropdown__menu { visibility: visible; opacity: 1; }
.nav-dropdown:hover .nav-item__arrow { transform: rotate(180deg); }
.nav-dropdown__link {
  display: block;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  transition: background 0.15s;
}
.nav-dropdown__link:hover { background: #F8FAFC; }
.nav-dropdown__link--active {
  font-weight: 700;
  color: var(--accent);
}

/* Header buttons */
.header__actions {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
}

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 6px;
}
@media (min-width: 820px) {
  .hamburger { display: none; }
}
.hamburger__line {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 9999px;
  background: var(--text);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  border-top: 1px solid var(--border);
  background: var(--white);
  padding: 12px 24px 20px;
}
@media (min-width: 820px) {
  .mobile-menu { display: none !important; }
}
.mobile-menu.is-open { display: block; }
.mobile-menu__links { display: flex; flex-direction: column; gap: 4px; }
.mobile-menu__link {
  display: block;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  transition: background 0.15s;
}
.mobile-menu__link:hover { background: #F8FAFC; }
.mobile-menu__link--active {
  font-weight: 700;
  color: var(--accent);
}
.mobile-menu__divider {
  height: 1px;
  background: var(--border);
  margin: 8px 0;
}
.mobile-menu__actions {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mobile-menu__btn {
  display: block;
  border-radius: 9999px;
  padding: 12px;
  text-align: center;
  font-size: 14px;
  font-weight: 700;
}
.mobile-menu__btn--outline {
  color: var(--main);
  border: 1.5px solid var(--main);
}
.mobile-menu__btn--primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
}

/* ===========================
   Footer
   =========================== */
.footer {
  width: 100%;
  padding: 40px 24px;
  background: var(--main);
}
.footer__inner {
  max-width: 1120px;
  margin: 0 auto;
}
.footer__top {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
@media (min-width: 820px) {
  .footer__top { flex-direction: row; }
}
.footer__logo {
  height: 24px;
  width: auto;
  filter: brightness(0) invert(1);
}
.footer__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
}
.footer__link {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  transition: color 0.15s;
}
.footer__link:hover { color: var(--white); }
.footer__bottom {
  margin-top: 32px;
  padding-top: 24px;
  text-align: center;
  font-size: 11px;
  color: rgba(255,255,255,0.3);
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* ===========================
   Hero
   =========================== */
.hero-wrap { background: linear-gradient(180deg, var(--white) 0%, var(--sub-bg) 100%); }
.hero { padding-top: 56px; padding-bottom: 32px; }
@media (min-width: 820px) {
  .hero { padding-top: 80px; padding-bottom: 48px; }
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 9999px;
  padding: 6px 16px;
  margin-bottom: 24px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  background: rgba(139,92,246,0.08);
  color: var(--accent);
  border: 1px solid rgba(139,92,246,0.2);
}
.hero__badge svg { width: 14px; height: 14px; }
.hero__title {
  text-align: left !important;
  font-size: 32px;
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--main);
  padding-left: 0;
  margin-left: 0;
}
@media (min-width: 480px) {
  .hero__title { font-size: 38px; }
}
@media (min-width: 820px) {
  .hero__title { font-size: 42px; }
}
.hero__title-accent { color: var(--accent); }
.hero__text {
  text-align: left;
  margin-top: 24px;
  max-width: 560px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-sub);
}
.hero__actions {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}
.hero__actions svg {
  width: 100% !important;
  max-width: none;
  height: auto !important;
}
@media (min-width: 480px) {
  .hero__actions { flex-direction: row; align-items: center; }
}
.hero__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero__img-wrap {
  width: 100%;
  max-width: 520px;
}
.hero__img {
  width: 100%;
  height: auto;
}

/* Hide on small */
.br-sm { display: none; }
@media (min-width: 480px) { .br-sm { display: block; } }

/* ===========================
   Challenge section decorations
   =========================== */
.challenge-deco {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent), transparent 70%);
}
.challenge-deco--tr {
  top: 0; right: 0;
  width: 500px; height: 500px;
  opacity: 0.1;
  transform: translate(30%, -30%);
}
.challenge-deco--bl {
  bottom: 0; left: 0;
  width: 400px; height: 400px;
  opacity: 0.05;
  transform: translate(-30%, 30%);
}
.challenge-deco--center {
  top: 0; left: 50%;
  width: 800px; height: 800px;
  opacity: 0.05;
  transform: translate(-50%, -50%);
}
.z-front { position: relative; z-index: 1; }

/* Challenge card */
.challenge-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.challenge-circle {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  overflow: hidden;
  background: rgba(255,255,255,0.07);
}
.challenge-circle svg {
  width: 180px;
  height: 180px;
}
.challenge-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.6;
  margin-bottom: 12px;
}
.challenge-text {
  font-size: 14px;
  line-height: 1.8;
  max-width: 280px;
  color: rgba(255,255,255,0.55);
}
.challenge-desc {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

/* ===========================
   CTA Section
   =========================== */
.cta-wrap {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}
.cta-title {
  font-size: 28px;
  font-weight: 900;
  line-height: 1.35;
  color: var(--main);
}
@media (min-width: 820px) {
  .cta-title { font-size: 34px; }
}
.cta-text {
  margin-top: 20px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-sub);
}
.cta-actions {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: center;
  align-items: center;
}
@media (min-width: 480px) {
  .cta-actions { flex-direction: row; }
}
.cta-note {
  margin-top: 16px;
  font-size: 12px;
  color: var(--text-sub);
}

/* ===========================
   Animations
   =========================== */
.floating { animation: float 6s ease-in-out infinite; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

.fade-up { opacity: 0; transform: translateY(28px); transition: opacity 0.65s cubic-bezier(0.22,1,0.36,1), transform 0.65s cubic-bezier(0.22,1,0.36,1); will-change: opacity, transform; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.stagger-1 { transition-delay: 0.08s; }
.stagger-2 { transition-delay: 0.16s; }
.stagger-3 { transition-delay: 0.24s; }
.stagger-4 { transition-delay: 0.32s; }

/* Hero pulse ring */
.pulse-ring { animation: pulseRing 3s ease-out infinite; }
@keyframes pulseRing {
  0% { transform: scale(0.9); opacity: 0.6; }
  70% { transform: scale(1.15); opacity: 0; }
  100% { transform: scale(1.15); opacity: 0; }
}

/* Data flow lines */
.data-flow { stroke-dasharray: 8 8; animation: flow 2.5s linear infinite; }
@keyframes flow { to { stroke-dashoffset: -80; } }

/* Gradient accent line */
.accent-line { height: 3px; background: linear-gradient(90deg, var(--main), var(--accent)); border-radius: 2px; }

/* Card hover */
.hover-lift { transition: transform 0.3s cubic-bezier(0.22,1,0.36,1), box-shadow 0.3s ease; }
.hover-lift:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,45,91,0.12); }

/* Scenario card subtle border animation */
.scenario-card { position: relative; overflow: hidden; }
.scenario-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 3px; background: linear-gradient(90deg, var(--main), var(--accent));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.22,1,0.36,1);
}
.scenario-card:hover::after { transform: scaleX(1); }

/* Mockup glow */
.mockup-glow { filter: drop-shadow(0 0 40px rgba(139,92,246,0.15)); }

/* Feature screenshot */
.feature-screenshot {
  border-radius: 12px;
  box-shadow: 0 4px 24px rgba(0,45,91,0.1);
  border: 1px solid var(--border);
  transition: transform 0.4s cubic-bezier(0.22,1,0.36,1);
}
.feature-screenshot:hover { transform: scale(1.02); }

/* Utility */
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mb-6 { margin-bottom: 24px; }

/* ========================================
   SP Responsive — 768px以下
   ======================================== */
@media (max-width: 768px) {
  .section { padding: 48px 16px; }
  .section__title { font-size: 22px; }
  .section__sub { font-size: 14px; }
  .hero { padding-top: 40px; padding-bottom: 24px; }
  .hero__title { font-size: 26px; }
  .hero-grid { grid-template-columns: 1fr !important; gap: 24px; }
  .hero-grid > *:last-child { max-width: 320px; margin: 0 auto; }
  .hero-grid > *:last-child svg { width: 100%; height: auto; }
  .grid-2, .grid-3 { gap: 16px; }
  .card, .card--accent { padding: 24px 16px; }
  .comp-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .eco-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 12px; }
  .cta-svg-wrap svg, .section svg[viewBox*="530 140"] { width: 100%; max-width: 420px; height: auto; }
}

/* ========================================
   SP Responsive — 480px以下
   ======================================== */
@media (max-width: 480px) {
  .section { padding: 36px 12px; }
  .section__title { font-size: 20px; }
  .hero__title { font-size: 22px; }
  .hero-grid > *:last-child { max-width: 260px; }
  .inner { padding: 0 12px; }
  .card, .card--accent { padding: 20px 14px; }
  .card__title { font-size: 18px; }
  .eco-grid { grid-template-columns: 1fr !important; }
  .cta-svg-wrap svg { max-width: 360px; }
}