:root {
  --navy: #062b55;
  --navy-dark: #031f3f;
  --gold: #d6a13a;
  --text: #1d2b3a;
  --muted: #6d7a88;
  --bg: #f7f4ee;
  --white: #fff;
  --line: #e6e0d7;
  --shadow: 0 18px 45px rgba(5, 35, 70, 0.12);
  --radius: 18px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.8;
  letter-spacing: 0.04em;
}

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

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

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(6, 43, 85, 0.08);
}

.header-inner {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  color: var(--navy);
}

.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--navy);
  color: var(--white);
  display: grid;
  place-items: center;
  font-size: 22px;
  letter-spacing: -0.12em;
}

.logo small {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  margin-top: -4px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 190px;
  height: 54px;
  border-radius: 7px;
  font-weight: 800;
  font-size: 14px;
  transition: 0.25s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-gold {
  background: linear-gradient(135deg, #dba73a, #c78b21);
  color: var(--white);
}

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

.hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.82) 42%, rgba(255, 255, 255, 0.2) 100%),
    radial-gradient(circle at 80% 25%, rgba(214, 161, 58, 0.22), transparent 34%),
    linear-gradient(135deg, #fff8ea, #edf6f2);
}

.hero-inner {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  min-height: 560px;
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  align-items: center;
  gap: 44px;
  padding: 70px 0;
}

.hero-copy h1 {
  color: var(--navy);
  line-height: 1.35;
  font-size: clamp(34px, 5vw, 58px);
  letter-spacing: 0.08em;
  margin: 10px 0 22px;
}

.hero-lead {
  color: var(--navy-dark);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 28px;
}

.hero-tags {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 30px 0;
  max-width: 540px;
}

.tag-card {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(6, 43, 85, 0.08);
  border-radius: 9px;
  padding: 14px;
  color: var(--navy);
  font-size: 12px;
  font-weight: 700;
}

.tag-card span {
  display: block;
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
  font-weight: 600;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  min-height: 390px;
}

.desktop-mock {
  position: absolute;
  top: 34px;
  right: 24px;
  width: 520px;
  max-width: 100%;
  background: #0d1a2a;
  border-radius: 20px;
  padding: 14px 14px 28px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.22);
}

.mock-screen {
  height: 285px;
  border-radius: 12px;
  overflow: hidden;
  background:
    linear-gradient(rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.5)),
    url("https://images.unsplash.com/photo-1503454537195-1dcabb73ffb9?auto=format&fit=crop&w=1200&q=80") center/cover;
  position: relative;
}

.mock-message {
  position: absolute;
  left: 30px;
  bottom: 34px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 14px;
  padding: 20px 24px;
  color: var(--navy);
  font-weight: 800;
  box-shadow: var(--shadow);
}

.mock-message small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 4px;
}

.phone-mock {
  position: absolute;
  right: -5px;
  bottom: 0;
  width: 150px;
  height: 286px;
  background: #111;
  border-radius: 28px;
  padding: 10px;
  box-shadow: 0 24px 44px rgba(0, 0, 0, 0.24);
}

.phone-screen {
  height: 100%;
  border-radius: 20px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.55)),
    url("https://images.unsplash.com/photo-1587654780291-39c9404d746b?auto=format&fit=crop&w=700&q=80") center/cover;
}

.section {
  padding: 88px 0;
}

.section-soft {
  background: #fbfaf7;
}

.section-label {
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  margin-bottom: 6px;
}

.section-title {
  color: var(--navy);
  font-size: clamp(26px, 3vw, 34px);
  line-height: 1.5;
  margin-bottom: 26px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 70px;
}

.about-text p {
  color: #354456;
  margin-bottom: 22px;
}

.about-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  color: var(--navy);
  font-size: 13px;
  font-weight: 700;
}

.about-photo {
  border-radius: 10px;
  min-height: 250px;
  background: url("https://images.unsplash.com/photo-1497366754035-f200968a6e72?auto=format&fit=crop&w=1100&q=80") center/cover;
  box-shadow: var(--shadow);
}

.works-head,
.service-head {
  margin-bottom: 34px;
}

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

.work-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  transition: 0.25s ease;
}

.work-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.work-img {
  background: #fff;
  padding: 10px 10px 0;
  overflow: hidden;
}

.work-img img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
}

.work-body {
  padding: 18px 22px 22px;
}

.work-body h3 {
  color: var(--navy);
  font-size: 18px;
  margin-bottom: 12px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 14px;
}

.chip {
  background: #f1f5f9;
  color: var(--navy);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 700;
}

.work-body p {
  color: var(--muted);
  font-size: 13px;
}

.center-btn {
  text-align: center;
  margin-top: 34px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}

.service-card {
  text-align: center;
  padding: 20px 10px;
}

.service-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #f1f4f7;
  color: var(--navy);
  display: grid;
  place-items: center;
  margin: 0 auto 14px;
  font-size: 26px;
}

.service-card h3 {
  color: var(--navy);
  font-size: 15px;
  margin-bottom: 8px;
}

.service-card p {
  color: var(--muted);
  font-size: 12px;
}

.contact {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.8)),
    url("https://images.unsplash.com/photo-1521791136064-7986c2920216?auto=format&fit=crop&w=1600&q=80") center/cover;
  padding: 70px 0;
}

.contact h2 {
  text-align: center;
  color: var(--navy);
  font-size: clamp(22px, 3vw, 30px);
  margin-bottom: 28px;
}

.contact-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.contact-card {
  padding: 34px;
  text-align: center;
  border-right: 1px solid var(--line);
}

.contact-card:last-child {
  border-right: none;
}

.contact-card h3 {
  color: var(--navy);
  font-size: 17px;
  margin-bottom: 6px;
}

.contact-card p {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 18px;
}

.footer {
  background: var(--navy);
  color: var(--white);
  padding: 44px 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.footer .logo {
  color: var(--white);
}

.footer .logo small,
.footer p,
.footer a {
  color: rgba(255, 255, 255, 0.72);
}

.footer h4 {
  font-size: 14px;
  margin-bottom: 12px;
}

.footer ul {
  list-style: none;
  font-size: 13px;
}

.footer li + li {
  margin-top: 6px;
}

.copy {
  text-align: right;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  margin-top: 30px;
}