:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #0B0B0B;
  --muted: #475569;
  --line: #c3c3c3;
  --dark: #0f172a;
  --main: #1E2F8E;
  --accent: #EBE429;
  --soft: #f1f5f9;
  --white: #ffffff;
  --gray: #808080;
  --max: 1200px;
}

* {
  box-sizing: border-box
}

html {
  scroll-behavior: smooth
}

body {
  margin: 0;
  font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Sans", "Yu Gothic UI", "Yu Gothic", Meiryo, sans-serif;
  background: var(--white);
  color: var(--text);
  line-height: 1.5
}

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

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 75px
}

.section {
  padding: 70px 0
}

.eyebrow {
  font-size: 20px;
  font-weight: 900;
  color: var(--main);
}

h1,
h2,
h3,
h4,
p {
  margin: 0
}

h2 {
  font-size: 46px;
  font-weight: 900;
  text-align: center;
}

.sp-br {
  display: none;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .8);
  backdrop-filter: blur(10px);
}

.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.brand small {
  display: block;
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em
}

.brand strong {
  font-size: 18px;
  color: var(--main);
}

.topbar .btn {
  padding-top: 12px;
  padding-bottom: 12px;
  font-size: 20px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 26px;
  padding: 14px 20px;
  font-weight: 700;
  transition: .2s ease;
  cursor: pointer;
  border: none;
  min-width: 196px;
}

.btn:hover {
  opacity: 0.8;
}

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

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

.hero {
  position: relative;
  overflow: hidden;
  background-image: url(../images/mv.jpg);
  background-size: cover;
  color: var(--white)
}

.hero-grid {
  position: relative;
  padding-top: 59px;
  padding-bottom: 58px;
}

.hero-grid > div {
  display: flex;
  flex-direction: column;
  text-align: center;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  padding: 10px 25px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .8);
  color: var(--text);
  font-size: 14px;
  font-weight: 700
}

.hero h1 {
  font-size: 50px;
  line-height: 1.5;
  font-weight: 900;
  margin-top: 20px;
  text-shadow: 0px 0px 6px rgba(0, 0, 0, 0.53);
}

.hero .accent {
  display: block;
  color: var(--accent)
}

.hero p.lead {
  margin-top: 22px;
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  text-shadow: 0px 0px 6px rgba(0, 0, 0, 0.53);
}

.hero-actions {
  display: flex;
  gap: 50px;
  flex-wrap: wrap;
  margin-top: 40px
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
  width: fit-content;
  margin-top: 40px
}

.stat {
  border: 1px solid var(--white);
  border-radius: 10px;
  padding: 10px 0 17px;
  width: 256px;
  text-align: center;
  text-shadow: 0px 0px 6px rgba(0, 0, 0, 0.53);
}

.stat strong {
  font-size: 26px;
  display: block;
  font-weight: 900;
}

.stat span {
  font-size: 14px;
  font-weight: 700;
}

.panel {
  background-image: url(../images/section01.jpg);
  background-size: cover;
  color: var(--text);
}

.panel .container {
  padding-top: 70px;
  padding-bottom: 70px;
}

.panel-soft {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(255, 255, 255, .85);
  border-radius: 10px;
  padding: 50px 10px;
}

.checklist {
  list-style: none;
  padding: 0;
  margin-bottom: 0;
  margin-top: 42px;
}

.checklist li {
  display: flex;
  gap: 7px;
  align-items: flex-start;
  font-size: 20px;
  font-weight: 700;
}

.check {
  margin-right: 5px;
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  width: 722px;
  margin-top: 40px;
}

.mini-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px;
}

.mini-card h4 {
  font-size: 14px;
  color: var(--gray);
  margin-bottom: 5px
}

.issues {
  position: relative;
}

.issues::before {
  content: "";
  position: absolute;
  top: calc(100% - 1px);
  left: 50%;
  transform: translateX(-50%);
  border: 108px solid transparent;
  border-top: 34px solid var(--white);
}

.intro {
  text-align: center;
  margin: 0 auto
}

.intro p {
  margin-top: 42px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 40px
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  column-gap: 10px;
  row-gap: 15px;
  margin-top: 40px
}

.card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 17px 20px 20px;
}

.card h3 {
  color: var(--main);
  font-size: 16px;
  font-weight: 900;
}

.card p {
  margin-top: 5px;
}

.services {
  background-color: var(--main);
  color: var(--white);
}

.services .eyebrow {
  color: var(--white);
}

.services-card {
  position: relative;
}

.services-card img {
  width: 100%;
}

.services-card h3 {
  position: absolute;
  top: 22px;
  width: 100%;
  text-align: center;
  font-size: 18px;
  font-weight: 900;
}

.services .services-card:nth-of-type(2n+1) h3 {
  color: var(--text);
}

.services-card p {
  padding: 15px 10px 0;
}

.benefits {
  background-image: url(../images/localllm-benefit.jpg);
  background-size: cover;
}

.split {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px
}

.split>div {
  background: rgba(255, 255, 255, .85);
  border-radius: 10px;
  padding: 30px;
}

.split h2 {
  font-size: 40px;
  margin-bottom: 21px;
  text-align: justify;
}

.split h3 {
  color: var(--main);
  font-size: 16px;
  font-weight: 900;
  margin-bottom: 5px;
}

.split>div>p {
  margin-bottom: 30px;
}

.split .block {
  margin-top: 20px;
}

.benefit-list .item {
  background: var(--main);
  border-radius: 10px;
  padding: 14px 19px;
  margin-top: 20px;
  color: var(--white);
  font-weight: 900
}

.flow {
  background-image: url(../images/flow.jpg);
  background-size: cover;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 58px
}

.step {
  position: relative;
  background: rgba(255, 255, 255, .85);
  border-radius: 10px;
  padding: 45px 0 34px;
  display: grid;
  grid-template-rows: auto auto;
  row-gap: 9px;
}

.step .num {
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  justify-content: center;
  align-items: center;
  width: 126px;
  height: 36px;
  border-radius: 0 18px 0 18px;
  background-color: var(--main);
  font-weight: 900;
  color: var(--white);
}

.step h4 {
  font-size: 18px;
  text-align: center;
  color: var(--main);
  align-self: center;
}

.step p {
  padding: 0 20px;
}

.faq-list {
  margin-top: 28px;
  display: grid;
  gap: 14px
}

details {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 10px;
}

details::after {
  content: '';
  width: 8px;
  height: 8px;
  margin-top: -5px;
  border-top: solid 1px var(--gray);
  border-right: solid 1px var(--gray);
  transform: rotate(135deg);
  position: absolute;
  top: 30px;
  right: 20px;
  transition: .2s ease;
}

details[open]::after {
  transform: rotate(-45deg);
}

summary {
  position: relative;
  padding: 20px 20px 20px 45px;
  cursor: pointer;
  font-size: 18px;
  font-weight: 900;
  list-style: none;
  color: var(--main);
}

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

summary::before {
  content: "Q. ";
  position: absolute;
  top: 20px;
  left: 20px;
}

details p {
  position: relative;
  padding: 0 20px 20px 43px;
  margin-top: -4px;
  font-size: 18px;
}

details p::before {
  content: "A. ";
  position: absolute;
  top: 1px;
  left: 22px;
}

.contact {
  background: var(--main);
  color: white
}

.contact h2 {
  text-align: justify;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  align-items: start
}

.contact .eyebrow {
  color: var(--white);
}

.contact p {
  margin-top: 42px;
}

.contact-box {
  margin-top: 40px;
  border: 1px solid var(--white);
  border-radius: 10px;
  padding: 20px
}

.contact-box ul {
  padding-left: 0;
  list-style: none;
  margin-top: 5px;
  margin-bottom: 0;
}

form {
  background: rgba(255, 255, 255, .85);
  color: var(--text);
  border-radius: 10px;
  padding: 30px 20px;
}

form h3 {
  font-size: 30px;
}

form p.sub {
  margin-top: 11px;
  margin-bottom: 30px;
}

.field {
  margin-top: 15px
}

label {
  display: block;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 5px
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 13px 20px;
  font: inherit;
  outline: none;
}

input:focus,
textarea:focus {
  border-color: var(--main);
}

::placeholder {
  color: var(--line);
}

form .btn {
  width: 100%;
  margin-top: 35px;
  font-size: 20px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.note {
  font-size: 14px;
  color: var(--gray);
  margin-top: 30px;
  transition: .2s ease;
}

.note a {
  text-decoration: underline;
}

.note a:hover {
  opacity: 0.8;
}

.footer {
  padding: 25px 0;
  text-align: center;
  color: var(--gray);
  font-size: 13px
}

@media (max-width:1024px) {

  .container {
    padding-left: 40px;
    padding-right: 40px;
  }

  h2 {
    font-size: 40px;
  }

  .hero-grid .sp-br {
    display: block;
  }

  .stat {
    padding-left: 15px;
    padding-right: 15px;
    width: auto;
  }

  .services-card h3 {
    font-size: 14px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

}

@media (max-width:720px) {

  body {
    font-size: 14px;
  }

  .section {
    padding: 50px 0;
  }

  .container {
    padding: 0 20px
  }

  .eyebrow {
    font-size: 16px;
  }

  h2 {
    font-size: 30px;
  }

  .sp-br {
    display: block;
  }

  .topbar-inner {
    padding: 10px 15px
  }

  .brand small {
    font-size: 10px;
  }

  .brand strong {
    font-size: 13px;
  }

  .topbar .btn {
    padding: 8px 13px;
    font-size: 13px;
  }

  .btn {
    padding: 11px 20px;
    min-width: 104px;
  }

  .hero {
    background-image: url(../images/mv-sp.jpg);
  }

  .hero-grid {
    padding-top: 30px;
    padding-bottom: 47px;
  }

  .hero-grid > div {
    text-align: left;
    align-items: start;
  }

  .hero-badge {
    padding: 10px 15px;
    font-size: 10px;
  }

  .hero h1 {
    margin-top: 10px;
    font-size: 30px;
  }

  .hero p.lead {
    margin-top: 10px;
    font-size: 14px;
  }

  .hero-actions {
    margin-top: 30px;
    gap: 20px;
  }

  .stat-grid {
    margin-top: 30px;
    gap: 15px;
    width: 100%;
  }

  .stat {
    padding: 10px 6px 8px;
    width: auto;
  }

  .stat strong {
    font-size: 20px;
  }

  .stat span {
    font-size: 13px;
  }

  .panel {
    background-image: url(../images/section01-sp.jpg);
  }

  .panel .container {
    padding-top: 50px;
    padding-bottom: 50px;
  }

  .panel-soft {
    padding: 30px 15px;
  }

  .panel h2 {
    text-align: center;
  }

  .checklist {
    margin-top: 20px;
  }

  .checklist li {
    font-size: 16px;
    margin-top: 7px;
  }

  .mini-grid {
    grid-template-columns: 1fr;
    gap: 15px;
    width: 100%;
    margin-top: 20px;
  }

  .intro p {
    margin-top: 24px;
  }

  .grid-3 {
    grid-template-columns: 1fr;
    row-gap: 20px;
    margin-top: 30px;
  }

  .card {
    padding: 20px 15px;
  }

  .card h3 {
    font-size: 14px;
  }

  .issues::before {
    border: 68px solid transparent;
    border-top: 22px solid var(--white);
  }

  .intro p {
    text-align: justify;
  }

  .grid-4 {
    grid-template-columns: 1fr;
    row-gap: 30px;
    margin-top: 30px;
    margin-bottom: 20px;
  }

  .services-card h3 {
    font-size: 18px;
  }

  .services-card p {
    padding: 10px 0 0;
  }

  .benefits {
    background-image: url(../images/localllm-benefit-sp.jpg);
  }

  .split {
    grid-template-columns: 1fr;
    gap: 30px
  }

  .split>div {
    padding: 30px 15px;
  }

  .split h2 {
    font-size: 30px;
    margin-bottom: 31px;
  }

  .split h3 {
    font-size: 14px;
    margin-bottom: 5px;
  }

  .benefit-list .item {
    padding: 12px 14px;
    margin-top: 15px;
  }

  .flow {
    background-image: url(../images/flow-sp.jpg);
  }

  .steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: 43px;
    margin-top: 48px
  }

  .step {
    padding: 35px 15px 30px;
    row-gap: 16px;
  }

  .step .num {
    font-size: 16px;
  }

  .step p {
    padding: 0;
  }

  .step br {
    display: none;
  }

  .faq-list {
    margin-top: 30px;
    gap: 20px;
  }

  details::after {
    width: 7px;
    height: 7px;
    top: 30px;
    right: 15px;
  }

  summary {
    padding: 20px 35px 20px 38px;
    font-size: 14px;
  }

  summary::before {
    left: 15px;
  }

  details p {
    padding: 0 15px 20px 36px;
    margin-top: 19px;
    font-size: 14px;
  }

  details p::before {
    top: 1px;
    left: 16px;
  }

  .contact p {
    margin-top: 31px;
  }

  .contact-box {
    margin-top: 30px;
    padding: 20px 15px;
  }

  form {
    padding: 30px 15px;
  }

  form h3 {
    font-size: 26px;
  }

  form p.sub {
    margin-top: 16px;
  }

  .field {
    margin-top: 18px;
  }

  label {
    font-size: 14px;
  }

  input, textarea {
    padding: 15px 20px;
  }

  form .btn {
    margin-top: 15px;
    font-size: 18px;
    padding-top: 13px;
    padding-bottom: 13px;
  }

  .note {
    font-size: 12px;
    margin-top: 30px;
  }

  .footer {
    padding: 15px 0;
  }

}