:root {
  --navy: #06172d;
  --blue: #1256c4;
  --sky: #e9f2ff;
  --ink: #142033;
  --muted: #637089;
  --line: #dce4ef;
  --soft: #f5f7fb;
  --white: #ffffff;
  --yellow: #ffd64a;
  --orange: #ff8a2a;
  --red: #e33b3b;
  --green: #168a5b;
  --shadow: 0 18px 44px rgba(9, 25, 49, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family:
    "Noto Sans JP",
    "Hiragino Kaku Gothic ProN",
    "Yu Gothic",
    Meiryo,
    system-ui,
    sans-serif;
  line-height: 1.75;
  letter-spacing: 0;
  overflow-x: hidden;
}

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

img {
  display: block;
  max-width: 100%;
}

main {
  overflow-x: hidden;
}

br.mobile-break {
  display: none;
}

svg {
  display: block;
  width: 1.25rem;
  height: 1.25rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.icon-sprite {
  display: none;
}

.container {
  width: min(1160px, 100%);
  margin-inline: auto;
  padding-inline: 20px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 78px;
  padding: 6px max(20px, calc((100vw - 1120px) / 2));
  color: var(--navy);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(220, 228, 239, 0.92);
  box-shadow: 0 10px 28px rgba(9, 25, 49, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
}

.brand-logo {
  width: clamp(180px, 18vw, 230px);
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 700;
}

.site-nav a,
.site-footer a {
  transition: color 0.2s ease;
}

.site-nav a:hover {
  color: var(--orange);
}

.site-footer a:hover {
  color: var(--yellow);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  gap: 8px;
  min-height: 42px;
  padding: 0 16px;
  color: var(--navy);
  background: var(--yellow);
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 800;
}

.header-cta svg {
  width: 18px;
  height: 18px;
}

.hero {
  position: relative;
  height: clamp(620px, 82svh, 760px);
  overflow: hidden;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(6, 23, 45, 0.94) 0%, rgba(6, 23, 45, 0.78) 42%, rgba(6, 23, 45, 0.34) 72%, rgba(6, 23, 45, 0.08) 100%),
    url("image/FV01.png") center / cover no-repeat,
    var(--navy);
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 8px;
  content: "";
  background: linear-gradient(90deg, var(--yellow), var(--orange), var(--red));
}

.hero-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 23, 45, 0.04) 0%, rgba(6, 23, 45, 0.38) 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100%;
  padding-top: 44px;
  padding-bottom: 64px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--orange);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  display: inline-flex;
  width: fit-content;
  padding: 7px 12px;
  color: var(--navy);
  background: var(--yellow);
  border-radius: 999px;
}

.hero h1 {
  max-width: 770px;
  margin: 0;
  font-size: 3.25rem;
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.keep-together {
  white-space: nowrap;
}

.hero-lead {
  max-width: 660px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.12rem;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 900;
  line-height: 1.2;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

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

.button-primary {
  color: var(--navy);
  background: var(--yellow);
  box-shadow: 0 12px 26px rgba(255, 214, 74, 0.24);
}

.button-primary:hover {
  background: #ffe27a;
}

.button-secondary {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
}

.button-secondary:hover {
  background: rgba(255, 255, 255, 0.18);
}

.hero-offer {
  position: relative;
  display: inline-grid;
  grid-template-columns: minmax(0, auto) auto;
  grid-template-areas:
    "label price"
    "note price";
  align-items: center;
  gap: 8px 28px;
  width: fit-content;
  max-width: min(900px, 100%);
  margin: 38px 0 0;
  padding: 20px 26px 20px 30px;
  color: var(--white);
  background: rgba(3, 13, 26, 0.88);
  border-radius: 8px;
  box-shadow: 0 18px 42px rgba(3, 13, 26, 0.34);
  backdrop-filter: blur(10px);
}

.hero-offer::before {
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 10px;
  width: 5px;
  content: "";
  background: var(--orange);
  border-radius: 999px;
}

.offer-unlimited {
  display: inline-flex;
  grid-area: label;
  align-items: center;
  min-height: 36px;
  width: fit-content;
  padding: 0 14px;
  color: var(--navy);
  background: var(--white);
  border-radius: 999px;
  font-size: 1.05rem;
  font-weight: 900;
  line-height: 1.2;
}

.offer-price {
  display: inline-flex;
  grid-area: price;
  align-items: baseline;
  gap: 4px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1;
  white-space: nowrap;
}

.offer-price strong {
  color: var(--white);
  font-size: 3.35rem;
  line-height: 0.9;
}

.offer-price small {
  color: rgba(255, 255, 255, 0.78);
  font-size: 1rem;
}

.offer-note {
  display: inline-flex;
  grid-area: note;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.98rem;
  font-weight: 900;
  white-space: nowrap;
}

.offer-note svg {
  color: var(--orange);
}

.section {
  padding: 92px 0;
}

.concern-section,
.visibility-section,
.faq-section {
  background: var(--soft);
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 64px;
  align-items: center;
}

.section-grid-reverse {
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
}

.section-copy h2,
.section-heading h2,
.contact-content h2 {
  margin: 0;
  color: var(--navy);
  font-size: 2.25rem;
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: 0;
}

.section-copy p:not(.section-kicker),
.section-heading p:not(.section-kicker),
.contact-content p:not(.section-kicker) {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1rem;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 36px;
}

.check-list,
.included-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li,
.included-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--ink);
  font-weight: 800;
}

.check-list svg,
.included-list svg {
  flex: 0 0 auto;
  margin-top: 5px;
  color: var(--green);
}

.concern-list {
  padding: 26px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.concern-list svg {
  color: var(--red);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.feature-card,
.price-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 30px rgba(9, 25, 49, 0.08);
}

.feature-card {
  display: flex;
  align-items: center;
  flex-direction: column;
  padding: 30px 24px;
  text-align: center;
}

.feature-card svg,
.price-icon {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  padding: 15px;
  color: var(--blue);
  background: var(--sky);
  border-radius: 8px;
}

.price-icon {
  font-size: 2rem;
  font-weight: 900;
}

.feature-card h3 {
  margin: 20px 0 8px;
  color: var(--navy);
  font-size: 1.15rem;
  line-height: 1.4;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.metrics-panel {
  display: grid;
  gap: 18px;
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.metric-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 16px;
  align-items: center;
  color: var(--navy);
  font-weight: 900;
}

.metric-row span {
  color: var(--muted);
  font-size: 0.95rem;
}

.metric-row strong {
  color: var(--blue);
  font-size: 1.8rem;
  line-height: 1;
}

.metric-row.danger strong {
  color: var(--red);
}

.metric-row i {
  position: relative;
  grid-column: 1 / -1;
  height: 12px;
  overflow: hidden;
  background: #edf2f7;
  border-radius: 999px;
}

.metric-row i::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--value);
  content: "";
  background: linear-gradient(90deg, var(--blue), var(--orange));
  border-radius: inherit;
}

.metric-note {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 16px;
  color: var(--navy);
  background: var(--sky);
  border-radius: 8px;
  font-weight: 800;
}

.metric-note svg {
  flex: 0 0 auto;
  color: var(--blue);
}

.flow-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: flow;
}

.flow-list li {
  position: relative;
  min-height: 230px;
  padding: 28px 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 30px rgba(9, 25, 49, 0.07);
}

.flow-list span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  color: var(--navy);
  background: var(--yellow);
  border-radius: 8px;
  font-weight: 900;
}

.flow-list h3 {
  margin: 22px 0 8px;
  color: var(--navy);
  font-size: 1.13rem;
}

.flow-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.price-section {
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(6, 23, 45, 0.98), rgba(18, 86, 196, 0.92)),
    var(--navy);
}

.price-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 440px);
  gap: 64px;
  align-items: center;
}

.price-section .section-kicker,
.contact-section .section-kicker {
  color: var(--yellow);
}

.price-section h2,
.contact-section h2 {
  color: var(--white);
}

.price-section .section-copy p {
  color: rgba(255, 255, 255, 0.78);
}

.price-card {
  padding: 34px;
  color: var(--ink);
}

.plan-name {
  margin: 0;
  color: var(--blue);
  font-weight: 900;
}

.plan-price {
  margin: 12px 0 22px;
  color: var(--navy);
  font-size: 1.3rem;
  font-weight: 900;
  line-height: 1.2;
}

.plan-price span {
  color: var(--red);
  font-size: 3.75rem;
}

.price-button {
  width: 100%;
  margin-top: 26px;
}

.price-note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

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

.recommend-grid p {
  min-height: 112px;
  margin: 0;
  padding: 20px;
  color: var(--navy);
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 5px solid var(--orange);
  border-radius: 8px;
  font-weight: 900;
  line-height: 1.55;
  box-shadow: 0 10px 24px rgba(9, 25, 49, 0.06);
}

.faq-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 56px;
  align-items: start;
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(9, 25, 49, 0.05);
}

summary {
  position: relative;
  display: block;
  min-height: 62px;
  padding: 18px 56px 18px 22px;
  color: var(--navy);
  font-weight: 900;
  cursor: pointer;
}

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

summary::after {
  position: absolute;
  top: 21px;
  right: 22px;
  width: 20px;
  height: 20px;
  color: var(--blue);
  content: "+";
  font-size: 1.4rem;
  line-height: 1;
  text-align: center;
}

details[open] summary::after {
  content: "-";
}

details p {
  margin: 0;
  padding: 0 22px 22px;
  color: var(--muted);
}

.contact-section {
  padding: 92px 0;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(6, 23, 45, 0.98), rgba(6, 23, 45, 0.82)),
    url("assets/hero-security-dashboard.svg") center / cover no-repeat,
    var(--navy);
}

.contact-content {
  max-width: 780px;
  margin-inline: auto;
  text-align: center;
}

.contact-content p:not(.section-kicker) {
  color: rgba(255, 255, 255, 0.78);
}

.contact-actions {
  justify-content: center;
}

.site-footer {
  padding: 24px 0;
  color: rgba(255, 255, 255, 0.72);
  background: #030d1a;
}

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

.footer-inner p {
  margin: 0;
}

.copyright {
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.88rem;
  text-align: center;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  width: min(260px, 70vw);
}

.footer-logo {
  width: 100%;
  height: auto;
}

@media (max-width: 980px) {
  .site-nav {
    display: none;
  }

  .hero {
    height: clamp(620px, 78svh, 720px);
  }

  .hero-content {
    min-height: 100%;
  }

  .hero h1 {
    font-size: 2.55rem;
  }

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

  .section-grid,
  .section-grid-reverse,
  .price-layout,
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 34px;
  }
}

@media (max-width: 640px) {
  .container {
    width: 100%;
    padding-inline: 14px;
  }

  .site-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    min-height: 66px;
    padding: 10px 14px;
  }

  .brand-logo {
    width: min(190px, 68vw);
  }

  .header-cta {
    display: none;
  }

  br.mobile-break {
    display: block;
  }

  .hero {
    height: auto;
    min-height: 520px;
    max-height: none;
    background-position: 58% center;
  }

  .hero-content {
    width: 100vw;
    max-width: 100vw;
    min-height: 680px;
    padding-top: 30px;
    padding-bottom: 44px;
  }

  .hero h1 {
    font-size: 1.85rem;
    line-height: 1.32;
  }

  .keep-together {
    white-space: normal;
  }

  .hero-lead {
    font-size: 0.96rem;
  }

  .hero-actions,
  .contact-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .hero-offer {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-areas:
      "label"
      "price"
      "note";
    width: calc(100vw - 28px);
    max-width: calc(100vw - 28px);
    margin-top: 28px;
    padding: 18px 20px 18px 24px;
    gap: 12px;
  }

  .hero-offer::before {
    top: 14px;
    bottom: 14px;
  }

  .offer-unlimited {
    width: fit-content;
    min-height: 34px;
    font-size: 0.95rem;
  }

  .offer-price strong {
    font-size: 2.25rem;
  }

  .offer-note {
    white-space: normal;
  }

  .section {
    padding: 64px 0;
  }

  .section-copy h2,
  .section-heading h2,
  .contact-content h2 {
    font-size: 1.7rem;
  }

  .feature-grid,
  .flow-list,
  .recommend-grid {
    grid-template-columns: 1fr;
  }

  .concern-list,
  .metrics-panel,
  .price-card {
    padding: 22px;
  }

  .flow-list li {
    min-height: auto;
  }

  .plan-price span {
    font-size: 3rem;
  }

  .contact-section {
    padding: 72px 0;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 430px) {
  .hero-content {
    min-height: 820px;
  }
}