/* ===== CSS Variables ===== */
:root {
  --color-accent: #ee9024;
  --color-navy: #254678;
  --color-text: #111111;
  --color-bg: #f8f5ef;
  --color-white: #ffffff;
  --color-gray-lt: #edf2fa;
  --color-gray-mid: #adbbd4;
  --color-gray-dk: #666666;
  --color-dark: #111111;
  --color-red: #ff5035;

  --font-body: 'Lato', 'Noto Sans JP', sans-serif;

  --max-width: 1280px;
  --side-padding: 40px;

  --transition: 0.3s cubic-bezier(0.4, 0.4, 0, 1);
}

/* ===== Reset ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

ul,
ol {
  list-style: none;
}

button {
  cursor: pointer;
  background: none;
  border: none;
  font: inherit;
}

/* ===== Layout helpers ===== */
.container {
  width: min(var(--max-width), 100%);
  margin-inline: auto;
  padding-inline: var(--side-padding);
}

/* ===== Announcement Bar ===== */
.announcement-bar {
  background: var(--color-accent);
  padding: 6px 40px;
  text-align: center;
}

.announcement-bar p {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-white);
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--color-gray-lt);
}

.nav-inner {
  background: var(--color-white);
  backdrop-filter: blur(8px);
  padding: 12px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.site-logo img {
  height: 36px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-links li a {
  display: block;
  padding: 0 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  transition: opacity var(--transition);
}

.nav-links li a:hover {
  opacity: 0.7;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 700;
  transition: opacity var(--transition);
}

.btn:hover {
  opacity: 0.85;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-outline {
  border: 1px solid var(--color-navy);
  color: var(--color-navy);
}

.btn-lg {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 15px;
}

.nav-toggle {
  display: none;
  color: var(--color-dark);
  font-size: 30px;
}

/* ===== Mobile Nav Drawer ===== */
.nav-drawer {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.4);
}

.nav-drawer.is-open {
  display: block;
}

.nav-drawer-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100%;
  background: var(--color-white);
  padding: 48px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.nav-drawer-close {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 28px;
  color: var(--color-text);
}

.nav-drawer-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-drawer-links li a {
  display: block;
  padding: 10px 0;
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-gray-lt);
}

.nav-drawer-cta {
  margin-top: auto;
}

.nav-drawer-cta .btn {
  width: 100%;
  padding: 12px;
  font-size: 1.6rem;
}

/* ===== Hero ===== */
.hero {
  background: #fff;
}

.hero-inner {
  display: flex;
  align-items: stretch;
  align-items: flex-start;
  gap: 80px;
}

.hero-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 24px;
  justify-content: center;
  padding-top: 105px;
}

.hero-content h1 {
  font-size: clamp(21px, 3.5vw, 3.0rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.4;
  color: var(--color-text);
}

.hero-content p {
  font-size: 1.6rem;
  line-height: 1.4;
  color: var(--color-text);
  letter-spacing: 0.05em;
}


.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-cta .btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  padding: 13px;
  border-radius: 5px;
  font-weight: normal;
  font-size: 1.5rem;
  margin: 0 0 0 0;
}

.hero-container {
  width: 1330px !important;
}

.hero-image {
  flex: 1;
  margin: -5px -31px -40px -321px;
}

.hero-image img {
  width: 100%;
  height: auto;
  border-radius: 0;
}

.local_header {
  background: var(--color-accent);
  color: var(--color-white);
  padding: 7px 0;
}

.local_header p {
  text-align: center;
  font-size: 1.2rem;
  font-style: normal;
  font-weight: 400;
  letter-spacing: 0.10em;
}

/* ===== Partner logos carousel (strip below hero) ===== */
.partner-strip {
  background: var(--color-white);
  padding: 0 0 38px 0;
}

.partner-strip-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 60px;
  overflow-x: auto;
  scrollbar-width: none;
  padding-block: 10px;
}

.partner-strip-inner::-webkit-scrollbar {
  display: none;
}

.partner-logo {
  flex: none;
  width: 160px;
}

.partner-logo img {
  width: 100%;
  object-fit: contain;
}

/* ===== Section common ===== */
section {
  width: 100%;
}

/* ===== What is Network Security ===== */
.section-security {
  /*
  background: linear-gradient(0deg, #8597b7 0%, #39566e 100%);
  */
  background-color: var(--color-bg);
  padding: 100px 0 128px;
}

.security-heading {
  text-align: center;
  margin-bottom: 22px;
}

.security-heading .label {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-accent);
  /*
  color: var(--color-white);
  */
  letter-spacing: 0.05em;
  margin-bottom: 27px;
}

.security-heading h2 {
  font-size: clamp(21px, 3.5vw, 3.0rem);
  font-weight: 700;
  color: var(--color-text);
  /*
  color: var(--color-white);
  */
  letter-spacing: 0.05em;
  line-height: 1.4;
}

.security-body {
  font-size: 1.6rem;
  line-height: 1.4;
  color: var(--color-text);
  /*
  color: var(--color-white);
  */
  text-align: center;
  max-width: 777px;
  margin-inline: auto;
}

.security-note {
  margin-top: 40px;
  display: flex;
  gap: 4px;
  align-items: flex-start;
  max-width: 656px;
  margin-inline: auto;
}

.security-note .asterisk {
  font-size: 13px;
  color: var(--color-white);
  flex-shrink: 0;
}

.security-note p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text);
  /*
  color: var(--color-white);
  */
}

/* ===== Solutions ===== */
.section-solutions {
  background: var(--color-white);
  /*
  background: var(--color-bg);
  */
  padding: 100px 0;
}

.solutions-header {
  text-align: center;
  margin-bottom: 60px;
  background-color: inherit;
}

.solutions-header .label {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.solutions-header h2 {
  font-size: clamp(21px, 3.5vw, 3.0rem);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 45px;
}

.solutions-header p {
  font-size: 1.6re, ;
  line-height: 1.4;
  color: var(--color-text);
  max-width: 435px;
  margin-inline: auto;
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-left: 1px solid var(--color-accent);
}

.solution-card {
  padding: 20px 40px;
  border-left: 1px solid var(--color-accent);
  display: flex;
  flex-direction: column;
  gap: 24px;
  justify-content: space-between;
  position: relative;
}

.solution-card:first-child {
  border-left: none;
}
.solution-card:last-child {
  border-right: 1px solid var(--color-accent);
}
.solution-card-header {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.solution-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #ffb630, #f78617 64%);
  border-radius: 6px;
  padding: 8px 20px;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-bg);
  align-self: center;
}

.solution-card h3 {
  font-size: clamp(18px, 2vw, 20px);
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
  line-height: 1.5;
}

.solution-card .product-img {
  width: 80%;
  border-radius: 4px;
  margin: 8px auto;
}

.solution-card .product-img.storage-img {
  width: 54%;
  border-radius: 4px;
  margin: 8px auto;
}

.solution-card .scene-img {
  width: 100%;
  border-radius: 4px;
}

.solution-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-white);
  border: 1px solid var(--color-accent);
  border-radius: 6px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-accent);
  text-align: center;
  transition: background var(--transition), color var(--transition);
}

.solution-cta:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

.solution-note {
  position: relative;
  font-size: 15px;
  color: var(--color-dark);
  text-align: center;
  text-align: center;
  top: -50px;
}

.storage-scene {
  position: relative;
  top: -50px;
}

/* ===== Why Us ===== */
.section-why {
  background:var(--color-bg);
  padding: 128px 40px;
}

.why-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 1200px;
  margin-inline: auto;
}

.why-visual {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  height: 320px;
  background-image: url('kyoto.webp');
  background-size: cover;
  background-position: center;
}

.why-text-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 16px 0 16px 16px;
}

.why-text-panel .label {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-accent);
}

.why-text-panel h2 {
  font-size: clamp(20px, 2.5vw, 26px);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.5;
}

.why-text-panel p {
  font-size: 1.6rem;
  line-height: 1.4;
  color: var(--color-text);
}

.why-images {
  display: flex;
  gap: 16px;
  margin-top: 8px;
  width: 70%;
}

.why-images img {
  width: calc(50% - 8px);
  border-radius: 4px;
  object-fit: cover;
  border-radius: 5px;
}

/* ===== Flow ===== */
.section-flow {
  background: transparent;
  padding: 128px 0;
}

.flow-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 50px;
    width: min(var(--max-width), 100%);
    margin-inline: auto;
    padding-inline: var(--side-padding);  
}

.flow-heading {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-self: start;
  position: sticky;
  top: 115px;
  width: 237px;
}

.flow-heading .label {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-accent);
}

.flow-heading h2 {
  font-size: clamp(20px, 2.5vw, 34px);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
}

.flow-heading .sub {
  font-size: 12px;
  color: var(--color-accent);
  text-transform: lowercase;
}

.flow-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.flow-step {
  display: grid;
  grid-template-columns: 24px auto 1fr;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 16px;
}

.flow-step-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.flow-step-circle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.flow-step-circle .material-icons {
  font-size: 14px;
  color: var(--color-accent);
}

.flow-step-line {
  width: 1px;
  flex: 1;
  background: var(--color-accent);
  min-height: 90px;
}

.flow-step-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-bottom: 32px;
}

.flow-step-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.5;
}

.flow-step-content p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-gray-dk);
}


/* ===== Case Studies ===== */
.section-cases {
  background-color:var(--color-bg);
  padding: 80px 0 0;
  position: relative;
}

.case-inner {
    width: min(var(--max-width), 100%);
    margin-inline: auto;
    padding-inline: var(--side-padding);
}

.cases-label {
  font-size: clamp(20px, 2.5vw, 34px);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
  color: var(--color-text);
  text-align: left;
  margin-bottom: 76px;
}

.cases-sub {
  font-size: 18px;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 0 0 120px;
}

.cases-grid::-webkit-scrollbar {
  display: none;
}

.case-card {
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
}

.case-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background-size: cover;
  background-position: center;
}

.case-card-body {
  background-color: var(--color-white);
  padding: 16px 24px 24px;
  border-radius: 0 0 8px 8px;
  border:1px solid #ccc;
}

.case-card-body .category {
  font-size: 12px;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.case-card-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.5;
  margin-bottom: 12px;
}

.case-card-body .details {
  font-size: 12px;
  color: var(--color-gray-dk);
  margin-bottom: 12px;
}

.case-card-body .cta-link {
  font-size: 15px;
  color: var(--color-dark);
  text-align: center;
  display: block;
}

.cases-note {
  font-size: 13px;
  color: #9d9d9d;
  padding: 0;
  margin-top: -80px;
  padding-bottom: 80px;
  text-align: right;
  margin-right: 161px;
  width: 100%;
}

.section-glossary {
  background: var(--color-bg);
  padding: 150px 0;
}

/* ===== FAQ ===== */
.section-faq {
  background: var(--color-white);
  padding: 150px 0;
}

.faq-inner {
  display: grid;
  grid-template-columns: 23% 1fr;
  gap: 40px;
    width: min(var(--max-width), 100%);
    margin-inline: auto;
    padding-inline: var(--side-padding);
}

.faq-heading {
  position: sticky;
  top: 145px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.faq-heading .label {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-accent);
}

.faq-heading h2 {
  font-size: clamp(20px, 2.5vw, 34px);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
}

.faq-list {
  display: flex;
  flex-direction: column;
}

details.faq-item {
  border-top: 1px solid var(--color-accent);
  border-bottom: 1px solid var(--color-accent);
  margin-top: -1px;
}

details.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 32px 0;
  cursor: pointer;
  transition: background var(--transition);
}

details.faq-item summary::-webkit-details-marker {
  display: none;
}

details.faq-item summary:hover {}

.faq-q {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-accent);
  flex-shrink: 0;
  width: 20px;
}

.faq-question {
  flex: 1;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.5;
}

.faq-toggle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: rotate var(--transition);
}

.faq-toggle .material-icons {
  font-size: 20px;
  color: var(--color-text);
}

details.faq-item[open] .faq-toggle {
  rotate: 180deg;
}

.faq-answer {
  border-radius: 8px;
  padding: 20px;
  margin: 0 0 32px 36px;
}

.faq-answer p {
  font-size: 1.6rem;
  line-height: 1.4;
  color: var(--color-text);
}

.faq-list h5 {
  font-size: 20px;
  padding: 30px 0;
}

/* ===== Footer ===== */
.site-footer {
  background: transparent;
  padding: 64px 40px 24px;
}

.footer-inner {
  max-width: 1280px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.footer-top {
  display: flex;
  align-items: flex-start;
  gap: 40px;
}

.footer-logo-col {
  flex: 1;
}

.footer-logo img {
  height: 32px;
  width: auto;
}

.footer-nav-cols {
  display: flex;
  gap: 40px;
}

.footer-nav-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-nav-col a {
  font-size: 13px;
  color: var(--color-dark);
  position: relative;
  padding: 4px 12px;
  transition: opacity var(--transition);
}

.footer-nav-col a:hover {
  opacity: 0.7;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid #e6e6e6;
  padding-top: 24px;
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 12px;
  color: var(--color-gray-dk);
  transition: opacity var(--transition);
}

.footer-legal a:hover {
  opacity: 0.7;
}

.footer-copy {
  font-size: 12px;
  color: var(--color-gray-dk);
}

.local_nav {
  padding: 23px 0;
  text-align: center;
}

.local_nav ul {
  display: grid;
  grid-template-columns: repeat(6, max-content);
  justify-content: center;
}

.local_nav li {    padding: 0 20px;
    border-right: 1px solid #666;
  font-size: 1.5rem;
}

.local_nav li:last-child{
  border-right: none;
}

.hero-image h1 {
  display: none;
}

.hero-content h1 {
  display: block;
}

/* ===== Responsive ===== */
@media (max-width: 840px) {
  :root {
    --side-padding: 32px;
  }

  .security-body {
    text-align: left;
  }

  .nav-links,
  .nav-actions .btn-outline {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-inner {
    flex-direction: column-reverse;
    gap: 50px;
    padding: 0 0 80px;
  }

  .hero-image {
    margin: 0;
    padding: 0;
  }

  .hero-image h1 {
    display: block;
    font-size: 23px;
    font-weight: 700;
    letter-spacing: 0.05em;
    line-height: 1.4;
    color: var(--color-text);
    text-align: center;
  }

  .hero-content h1 {
    display: none;
  }

  .local_nav ul {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    list-style: none;
    padding: 0;
    margin: 0 20px;
  }

  /* 1つ目 */
  .local_nav ul li:nth-child(1) {
    grid-column: 1 / -1;
  }

  /* 2つ目 */
  .local_nav ul li:nth-child(2) {
    grid-column: 1 / -1;
  }


  .local_nav ul li {
    padding: 0 0;
    position: relative;
  }

  .local_nav ul li::before {
    content: "・";
  }


  .hero-container {
    width: 100% !important;
  }

  .solutions-grid {
    grid-template-columns: 1fr;
    border-left: none;
  }

  .solution-card {
    border-left: none;
    border-bottom: 1px solid var(--color-accent);
    border-left: none !important;
    padding: 30px 0;
  }

  .section-solutions {
    padding: 50px 0;
  }

  .section-why {
    padding: 50px 40px;
  }

  .section-flow {
    padding: 50px 0;
  }

  .section-cases {
    padding: 50px 0;
  }

  .cases-sub {
    margin-left: 0;
  }

  .cases-label {
    margin-left: 0;
    margin-bottom: 30px;
  }

  .why-inner {
    grid-template-columns: 1fr;
  }

  .why-visual {
    min-height: 220px;
  }

  .flow-inner {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .flow-heading {
    position: static;
  }

  .cases-grid {
    grid-template-columns: repeat(3, 340px);
  }

  .faq-inner {
    grid-template-columns: 1fr;
  }

  .faq-heading {
    position: static;
  }

  .faq-question {
    font-size: 1.6rem;
  }

  .footer-top {
    flex-direction: column;
    gap: 50px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }
}

@media (max-width: 540px) {
  :root {
    --side-padding: 20px;
  }

  .announcement-bar p {
    font-size: 11px;
  }

  .site-logo img {
    height: 32px;
  }

  .hero {
    padding-top: 20px;
  }

  .hero-inner {
    padding: 0 0 60px;
    gap: 50px;
  }

  .hero-content h1 {
    font-size: 23px;
    text-align: center;
  }

  .hero-content p {
    font-size: 14px;
  }

  .hero-cta {
    justify-content: center;
  }

  .hero-content {
    justify-content: center;
    padding-top: 5px;
    width: 100%;
  }

  .cases-grid {
    display: block;
    grid-template-columns: inherit;
    padding: 0 0 30px;
  }

  .case-card-body {
    padding: 16px 0 30px;
  }

  .case-card-body .cta-link {
    text-align: right;
  }


  .cases-note {
    padding: 0;
    margin-top: inherit;
    margin-bottom: inherit;
    text-align: right;
    margin-right: inherit;
    font-size: 12px;
  }



  .section-faq {
    padding: 50px 0;
  }

  .faq-question {
    font-size: 15px;
  }

  .faq-q {
    font-size: 18px;
  }

  .footer-nav-cols {
    flex-wrap: wrap;
    gap: 20px;
  }

  .solutions-header p {
    font-size: 13px;
    text-align: left;
  }

  .why-images {
    width: 100%;
  }

  .secOuter {
    min-width: 100% !important;
    width: 100% !important;
    padding: 0 20px !important;
  }

  .tit04 {
    font-size: 1.6rem !important;
  }

  .form .btn {
    width: 100%;
  }

  .hero-cta .btn-primary {
    margin: 0 0 0 0;
  }

  .partner-strip-inner {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-column-gap: 20px;
    align-items: center;
    justify-content: center;
    gap: 5px;
    overflow-x: none;
    scrollbar-width: none;
    padding-block: 0;
  }

}