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

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  color: #222;
  background-color: #fff;
  line-height: 1.75;
}

a {
  color: #2a6df4;
  text-decoration: none;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 18px;
}

.site-header {
  border-bottom: 1px solid #e7e7e7;
  background: #fff;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
}

.site-header__inner {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  padding: 14px 0;
  gap: 12px;
}

.site-title {
  font-weight: 700;
  text-decoration: none;
  color: #222;
  white-space: nowrap;
}

.site-nav a {
  text-decoration: none;
  color: #666;
  margin-left: 12px;
  font-size: 14px;
}
.site-nav a:hover {
  color: #222;
}

main {
  padding: 85px 0 40px;
}

section {
  padding: 34px 0;
  border-bottom: 1px solid #e7e7e7;
}
section:last-of-type {
  border-bottom: none;
}

h1 {
  font-size: 28px;
  line-height: 1.35;
  margin: 0 0 10px;
}

h2 {
  font-size: 20px;
  margin: 0 0 14px;
}

h3 {
  font-size: 16px;
  margin: 0 0 8px;
}

p {
  margin: 0 0 12px;
}

.muted {
  color: #666;
  font-size: 14px;
}

.btn {
  display: inline-block;
  background: #2a6df4;
  color: #fff;
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
}
.btn:hover {
  opacity: 0.92;
}

.cards {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr 1fr 1fr;
  margin-top: 12px;
}
@media (max-width: 759px) {
  .cards {
    grid-template-columns: 1fr;
  }
}

.card {
  border: 1px solid #e7e7e7;
  border-radius: 12px;
  padding: 14px;
  background: #fff;
}
.card ul {
  margin: 10px 0 0;
  padding-left: 18px;
}

.price {
  margin-top: 10px;
  font-weight: 600;
}

.services-muted {
  margin-top: 14px;
}

.work {
  border: 1px solid #e7e7e7;
  border-radius: 12px;
  padding: 16px;
  background: #fff;
}
.work + .work {
  margin-top: 14px;
}

.work__block {
  margin-top: 14px;
  padding-top: 14px;
  padding: 14px;
  border: 1px solid #e7e7e7;
}

.demo-box {
  border: 1px dashed #cfcdcf;
  border-radius: 10px;
  padding: 14px;
  background: #fafafa;
  margin-top: 8px;
}

.form {
  border: 1px solid #e7e7e7;
  border-radius: 12px;
  padding: 16px;
  background: #fff;
  margin-top: 12px;
}

.form-group {
  margin-top: 12px;
}

label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 6px;
}

input,
textarea {
  width: 100%;
  font-size: 16px;
  padding: 10px 12px;
  border: 1px solid #e7e7e7;
  border-radius: 10px;
  background: #fff;
}

textarea {
  min-height: 140px;
  resize: vertical;
}

button {
  border: none;
  background: #2a6df4;
  color: #fff;
  padding: 10px 14px;
  border-radius: 10px;
  font-weight: 700;
  cursor: pointer;
  font-size: 14px;
}
button:hover {
  opacity: 0.92;
}

.form-actions {
  margin-top: 14px;
}

.form-muted {
  margin-top: 10px;
}

.site-footer {
  border-top: 1px solid #e7e7e7;
  padding: 18px 0;
  color: #666;
  font-size: 13px;
}

.footer-muted {
  margin-top: 8px;
}

.thanks-container {
  max-width: 720px;
  padding: 40px 20px;
}

.thanks-tiitle {
  font-size: 22px;
  margin-bottom: 16px;
}