:root {
  --bg: #ffffff;
  --bg-soft: #f6f8fb;
  --bg-mist: #f8fafd;
  --text-main: #1f2a37;
  --text-sub: #4a596b;
  --line: #d8e0ea;
  --brand: #253c56;
  --brand-soft: #385676;
  --max-width: 1120px;
  --space-section: 88px;
  --mobile-header-height: 72px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Zen Kaku Gothic New", "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  font-weight: 400;
  color: var(--text-main);
  background-color: var(--bg);
  line-height: 1.82;
  letter-spacing: 0.02em;
}

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

.container {
  width: min(var(--max-width), calc(100% - 64px));
  margin: 0 auto;
}

.section {
  padding: var(--space-section) 0;
}

.section-compact {
  padding-top: calc(var(--space-section) - 12px);
  padding-bottom: calc(var(--space-section) - 12px);
}

.section-alt {
  background-color: var(--bg-soft);
}

.section-featured {
  background: linear-gradient(180deg, #ffffff 0%, var(--bg-mist) 100%);
}

.section-featured-soft {
  background-color: #f9fbfd;
}

h1,
h2,
h3,
p,
ul,
ol {
  margin: 0;
}

h1 {
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.04em;
}

h2 {
  font-size: 1.85rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 30px;
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

p {
  color: var(--text-sub);
  font-size: 1.01rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background-color: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid #ecf0f4;
  backdrop-filter: blur(4px);
}

.header-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 9px 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  line-height: 1;
}

.logo img {
  width: 124px;
  height: auto;
  max-width: 100%;
  max-height: 44px;
  display: block;
}

.global-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0;
  margin: 0;
}

.global-nav a {
  color: var(--text-sub);
  font-size: 0.96rem;
  font-weight: 500;
  line-height: 1.4;
  transition: color 0.18s ease;
}

.global-nav a[aria-current="page"] {
  color: var(--brand);
}

.global-nav a:hover {
  color: var(--brand);
}

.header-contact {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  white-space: nowrap;
}

.header-contact-tel {
  font-size: 0.9rem;
  font-weight: 600;
  color: #324a66;
  letter-spacing: 0.01em;
}

.header-contact p {
  font-size: 0.77rem;
  color: #6d7d90;
}

.menu-contact {
  display: none;
}

.menu-toggle {
  display: none;
}

.page-overlay {
  display: none;
}

.back-to-top {
  display: none;
}

.hero {
  position: relative;
  overflow: hidden;
  padding-top: 118px;
  padding-bottom: 100px;
  background: linear-gradient(90deg,
      #ffffff 0%,
      #ffffff 56%,
      #f7fafe 78%,
      #f1f5fb 100%);
}

.hero::before {
  content: "";
  position: absolute;
  right: -180px;
  top: -120px;
  width: 920px;
  height: 920px;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle at center,
      rgba(226, 234, 246, 0.72) 0%,
      rgba(226, 234, 246, 0.40) 32%,
      rgba(226, 234, 246, 0.18) 48%,
      rgba(226, 234, 246, 0.08) 60%,
      rgba(226, 234, 246, 0) 70%);
}

.hero::after {
  content: "";
  position: absolute;
  right: 36px;
  bottom: 24px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.38;
  background-image: radial-gradient(rgba(120, 146, 181, 0.28) 1.2px, transparent 1.2px);
  background-size: 12px 12px;
  mask-image: radial-gradient(circle at center, #000 0%, #000 58%, transparent 82%);
  -webkit-mask-image: radial-gradient(circle at center, #000 0%, #000 58%, transparent 82%);
}

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 54px;
  align-items: center;
}

.hero-inner {
  max-width: 760px;
}

.hero-inner .eyebrow {
  margin: 0 0 18px;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  color: var(--text-sub);
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-inner .eyebrow::after {
  content: "";
  width: 72px;
  height: 1px;
  margin-top: 12px;
  background-color: #d6deea;
}

.hero-inner h1 {
  margin: 0 0 26px;
  line-height: 1.55;
}

.hero-heading-line {
  display: block;
}

.hero-description {
  margin: 0 0 36px;
  max-width: 36em;
  line-height: 1.9;
}

.hero-local-note {
  margin: -18px 0 30px;
  max-width: 45em;
  color: #5a6a7d;
  font-size: 0.94rem;
  line-height: 1.82;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  align-items: center;
}

.hero-visual {
  position: relative;
  z-index: 1;
  border: 1px solid #eef3f8;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.92);
  padding: 24px 24px;
  box-shadow: 0 22px 52px rgba(45, 71, 104, 0.10);
  margin-top: 50px;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: -26px -34px -28px -18px;
  z-index: -1;
  border-radius: 32px;
  pointer-events: none;
  background: radial-gradient(circle at 62% 48%,
      rgba(217, 228, 242, 0.72) 0%,
      rgba(217, 228, 242, 0.28) 48%,
      rgba(217, 228, 242, 0) 74%);
}

.hero-visual-title {
  font-size: 1.14rem;
  font-weight: 700;
  color: #1f2e46;
  margin-bottom: 14px;
}

.visual-scene {
  margin: 0;
  display: block;
  width: 100%;
  border: 0;
  border-radius: 0;
  overflow: visible;
  background: transparent;
  box-shadow: none;
}

.visual-scene-image img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 0;
}

.diagram-hub {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 126px;
  height: 126px;
  border-radius: 50%;
  border: 1px solid #d8e1ec;
  background:
    radial-gradient(circle at 30% 30%, #ffffff 0%, #f4f8fc 100%);
  box-shadow: inset 0 0 0 7px rgba(244, 248, 252, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hub-label {
  color: #4b617b;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.diagram-node {
  position: absolute;
  font-size: 0.81rem;
  color: #536883;
  border: 1px solid #dce5ef;
  background: #ffffff;
  border-radius: 999px;
  padding: 6px 12px;
  min-width: 92px;
  text-align: center;
}

.diagram-node::before {
  content: "";
  position: absolute;
  width: 1px;
  background-color: #dfe7f1;
  opacity: 0.95;
}

.node-pc {
  top: 29px;
  left: 34px;
}

.node-pc::before {
  height: 56px;
  right: -23px;
  bottom: -47px;
  transform: rotate(-31deg);
}

.node-net {
  top: 29px;
  right: 34px;
}

.node-net::before {
  height: 56px;
  left: -23px;
  bottom: -47px;
  transform: rotate(31deg);
}

.node-backup {
  bottom: 29px;
  left: 37px;
}

.node-backup::before {
  height: 53px;
  right: -20px;
  top: -43px;
  transform: rotate(30deg);
}

.node-site {
  bottom: 29px;
  right: 37px;
}

.node-site::before {
  height: 53px;
  left: -20px;
  top: -43px;
  transform: rotate(-30deg);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 168px;
  padding: 12px 24px;
  border-radius: 6px;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--brand);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: #1f334a;
}

.btn-secondary {
  border-color: var(--line);
  color: var(--brand);
  background-color: #ffffff;
}

.btn-secondary:hover {
  border-color: #b9c6d5;
  background-color: #fbfcfd;
}

.list-grid {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 24px;
}

.list-grid li {
  position: relative;
  padding-left: 22px;
  color: var(--text-main);
  font-size: 1.01rem;
}

.list-grid li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #c5d0dd;
}

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

.card-grid li {
  min-height: 88px;
  padding: 20px 22px;
  border: 1px solid #e6ecf2;
  border-radius: 10px;
  color: var(--text-main);
  background-color: #ffffff;
  box-shadow: 0 7px 20px rgba(34, 57, 84, 0.03);
  display: flex;
  align-items: center;
  line-height: 1.7;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.card-grid li:hover {
  border-color: #d8e2ee;
  box-shadow: 0 10px 24px rgba(34, 57, 84, 0.05);
  transform: translateY(-1px);
}

.narrow {
  max-width: 900px;
}

.service-intro h1 {
  margin-bottom: 22px;
}

.service-intro-copy {
  max-width: 42em;
  margin-bottom: 4px;
}

.service-intro-copy p {
  font-size: 0.98rem;
  line-height: 1.92;
}

.service-intro-copy p + p {
  margin-top: 16px;
}

.contact-mail-btn {
  margin-top: 20px;
}

.contact-phone-note {
  margin-top: 14px;
  font-size: 0.93rem;
  line-height: 1.75;
  color: #5d6d81;
}

.contact-phone-note a {
  color: #2f4764;
  font-weight: 600;
}

.contact-phone-note span {
  color: #6f7f93;
}

.contact-hours-break {
  display: none;
}

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

.comparison-card {
  border: 1px solid #dfe7f1;
  border-radius: 12px;
  padding: 30px 28px;
  background-color: #ffffff;
}

.comparison-card h3 {
  margin-bottom: 18px;
}

.comparison-label {
  color: #5f7390;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.comparison-card-main {
  border-color: #bdccde;
  box-shadow: 0 16px 36px rgba(37, 60, 86, 0.08);
  background: linear-gradient(180deg, #ffffff 0%, #f7fafd 100%);
}

.comparison-card ul {
  padding-left: 22px;
  color: var(--text-sub);
  font-size: 1rem;
}

.comparison-card li + li {
  margin-top: 11px;
}

.flow-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.subpage-flow-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.flow-list li {
  border: 1px solid #e5ebf2;
  border-radius: 8px;
  padding: 17px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: #ffffff;
}

.step-number {
  display: inline-flex;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--brand);
  border: 1px solid #c9d4e2;
}

.step-text {
  color: var(--text-main);
  font-size: 1rem;
}

.subpage-flow-list li {
  align-items: flex-start;
}

.subpage-flow-list .step-text {
  font-size: 0.95rem;
  line-height: 1.7;
}

.section-contact {
  border-top: 1px solid #e4eaf1;
}

.section-contact p {
  margin-bottom: 28px;
  font-size: 1.02rem;
}

.subpage-h2 {
  font-size: 1.35rem;
  margin-bottom: 18px;
}

.subpage-note {
  margin-top: 32px;
  font-size: 0.95rem;
  color: var(--text-sub);
}

.subpage-note a {
  color: var(--brand-soft);
  text-decoration: none;
}

.subpage-note-spaced {
  margin-top: 24px;
}

.section-lead {
  max-width: 720px;
  margin-bottom: 22px;
  color: var(--text-sub);
}

.subpage-note-tight {
  margin-top: 18px;
}

.subpage-note-after-list {
  margin-top: 22px;
}

.company-profile-block {
  border: 1px solid #e4eaf2;
  border-radius: 10px;
  padding: 24px 24px 20px;
  background-color: #fbfcfe;
}

.company-profile-block .subpage-h2 {
  margin-bottom: 14px;
}

.company-profile-list {
  margin: 0;
  display: grid;
  gap: 10px;
}

.company-profile-list div {
  display: grid;
  grid-template-columns: 7.5em 1fr;
  gap: 8px 14px;
}

.company-profile-list dt {
  color: #607287;
  font-size: 0.88rem;
}

.company-profile-list dd {
  margin: 0;
  color: #273849;
  font-size: 0.93rem;
}

.company-profile-list a {
  color: #2f4764;
  text-decoration: none;
}

.subtle-local-note {
  margin-top: 0;
  max-width: none;
  color: #556578;
  font-size: 0.96rem;
  line-height: 1.9;
}

.site-footer {
  margin-top: 0;
  background: linear-gradient(165deg, #1e3248 0%, var(--brand) 48%, #1a2a3d 100%);
  color: rgba(255, 255, 255, 0.88);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.footer-inner {
  padding: 36px 0 28px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.footer-main {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px 32px;
}

.footer-home {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.95);
  transition: color 0.18s ease, opacity 0.18s ease;
}

.footer-home:hover {
  color: #ffffff;
  opacity: 0.92;
}

.footer-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 26px;
  padding: 0;
  margin: 0;
}

.footer-nav a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.72);
  letter-spacing: 0.02em;
  transition: color 0.18s ease;
}

.footer-nav a:hover {
  color: #ffffff;
}

.footer-local-note {
  margin: 2px 0 0;
  text-align: center;
  font-size: 0.84rem;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.62);
}

.footer-contact-note {
  margin: -4px 0 0;
  text-align: center;
  display: inline-flex;
  justify-content: center;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.66);
}

.footer-contact-note a {
  color: rgba(255, 255, 255, 0.84);
  font-weight: 600;
}

.footer-copyright {
  margin: 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.48);
  text-align: center;
}

@media (max-width: 760px) {
  .footer-inner {
    padding: 28px 0 24px;
    gap: 18px;
  }

  .footer-main {
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }

  .footer-nav ul {
    justify-content: center;
    gap: 8px 18px;
  }

  .footer-copyright {
    padding-top: 18px;
    font-size: 0.78rem;
    line-height: 1.6;
  }

  .footer-local-note {
    font-size: 0.79rem;
    line-height: 1.65;
  }

  .footer-contact-note {
    margin-top: -2px;
    font-size: 0.78rem;
    gap: 8px;
  }
}

@media (max-width: 980px) {
  h1 {
    font-size: 2.35rem;
  }

  h2 {
    font-size: 1.7rem;
  }

  :root {
    --space-section: 72px;
  }

  .container {
    width: min(var(--max-width), calc(100% - 44px));
  }

  .global-nav ul {
    gap: 18px;
  }

  .header-contact {
    gap: 1px;
  }

  .header-contact-tel {
    font-size: 0.84rem;
  }

  .header-contact p {
    font-size: 0.73rem;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 30px;
    align-items: start;
  }

  .hero-visual {
    max-width: 660px;
    margin-top: 0;
  }

  .hero::before {
    right: 50%;
    transform: translateX(50%);
    top: 180px;
    width: 700px;
    height: 700px;
  }

  .hero::after {
    right: 20px;
    bottom: 10px;
    width: 220px;
    height: 220px;
  }

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

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

@media (max-width: 760px) {
  h1 {
    font-size: 1.9rem;
  }

  .hero-inner h1 {
    font-size: 1.82rem;
    line-height: 1.48;
    letter-spacing: 0.02em;
  }

  .hero-heading-line-second {
    white-space: nowrap;
  }

  h2 {
    font-size: 1.45rem;
  }

  :root {
    --space-section: 58px;
  }

  body {
    padding-top: var(--mobile-header-height);
  }

  body.is-menu-open {
    overflow: hidden;
  }

  .site-header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 12px rgba(29, 48, 72, 0.08);
  }

  .header-inner {
    min-height: 0;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    gap: 8px 14px;
  }

  .logo {
    align-self: center;
  }

  .logo img {
    width: 108px;
    max-height: 36px;
  }

  .header-contact {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
    width: 42px;
    height: 42px;
    border: 1px solid #dbe3ed;
    border-radius: 8px;
    background: #ffffff;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    padding: 0;
    cursor: pointer;
  }

  .menu-toggle span {
    display: block;
    width: 18px;
    height: 1.5px;
    background-color: #33475f;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .site-header.is-menu-open .menu-toggle span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
  }

  .site-header.is-menu-open .menu-toggle span:nth-child(2) {
    opacity: 0;
  }

  .site-header.is-menu-open .menu-toggle span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
  }

  .global-nav {
    position: relative;
    z-index: 2;
    grid-column: 1 / -1;
    margin-top: 0;
    padding: 0;
    border-top: 0;
    background-color: transparent;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transform: translateY(-16px);
    transition: max-height 0.38s ease, opacity 0.3s ease, transform 0.38s ease;
    pointer-events: none;
  }

  .menu-contact {
    display: block;
    margin: 0 0 10px;
    padding: 0 2px 10px;
    border-bottom: 1px solid #e5ecf4;
    text-align: right;
  }

  .menu-contact-tel {
    font-size: 0.95rem;
    font-weight: 600;
    color: #324a66;
    letter-spacing: 0.01em;
  }

  .menu-contact p {
    margin-top: 3px;
    font-size: 0.8rem;
    color: #6d7d90;
  }

  .site-header.is-menu-open .global-nav {
    margin-top: 4px;
    padding: 10px 0 6px;
    border-top: 1px solid #edf2f7;
    max-height: 320px;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .global-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0;
  }

  .global-nav li {
    border-bottom: 1px solid #e5ecf4;
  }

  .global-nav li:first-child {
    border-top: 1px solid #e5ecf4;
  }

  .global-nav a {
    display: block;
    font-size: 0.92rem;
    line-height: 1.5;
    padding: 10px 4px;
    color: #3f5167;
  }

  .page-overlay {
    display: block;
    position: fixed;
    top: var(--mobile-header-height);
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 19;
    border: 0;
    background: rgba(20, 33, 48, 0.28);
    cursor: default;
    padding: 0;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

  body.is-menu-open .page-overlay {
    opacity: 1;
    pointer-events: auto;
  }

  .hero {
    padding-top: 24px;
    padding-bottom: 64px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .hero-actions .btn {
    width: 172px;
    min-width: 172px;
  }

  .hero-actions .btn-secondary {
    color: #2e4965;
    border-color: #c8d3e1;
  }

  .hero-visual {
    padding: 20px;
    max-width: 560px;
  }

  .hero-visual-title {
    margin-bottom: 12px;
  }

  .hero-description {
    margin: 0 0 18px;
  }

  .hero-local-note {
    margin: 0 0 26px;
    max-width: 31em;
    font-size: 0.86rem;
    line-height: 1.9;
    color: #607084;
  }

  .subtle-local-note {
    margin-top: 14px;
    max-width: 100%;
    font-size: 0.9rem;
    line-height: 1.78;
  }

  .service-intro h1 {
    margin-bottom: 18px;
  }

  .service-intro-copy {
    max-width: 100%;
    margin-bottom: 2px;
  }

  .service-intro-copy p {
    font-size: 0.94rem;
    line-height: 1.88;
  }

  .service-intro-copy p + p {
    margin-top: 14px;
  }

  .company-profile-block {
    padding: 20px 18px 16px;
  }

  .company-profile-list {
    gap: 9px;
  }

  .company-profile-list div {
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .company-profile-list dt {
    font-size: 0.82rem;
  }

  .company-profile-list dd {
    font-size: 0.89rem;
  }

  .contact-mail-btn {
    margin-top: 18px;
  }

  .contact-phone-note {
    margin-top: 12px;
    font-size: 0.88rem;
    line-height: 1.72;
  }

  .contact-hours-break {
    display: block;
  }

  /* .hero-visual-canvas {
    min-height: 220px;
  }

  .visual-scene {
    min-height: 220px;
  } */

  .hero-visual-canvas {
    min-height: 0;
  }

  .visual-scene {
    min-height: 0;
  }

  .list-grid,
  .card-grid,
  .comparison-grid,
  .flow-list {
    grid-template-columns: 1fr;
  }

  .back-to-top {
    display: inline-flex;
    position: fixed;
    right: 14px;
    bottom: 16px;
    z-index: 21;
    width: 42px;
    height: 42px;
    border: 1px solid #cad5e3;
    border-radius: 999px;
    background-color: rgba(255, 255, 255, 0.94);
    color: #2f4661;
    font-size: 1.1rem;
    line-height: 1;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 18px rgba(29, 48, 72, 0.14);
    cursor: pointer;
  }
}