:root {
  --color-bg: #ffffff;
  --color-bg-subtle: #f9f9f9;
  --color-bg-dark: #0b1f3b;
  --color-text-main: #222222;
  --color-text-light: #ffffff;
  --color-text-muted: #666666;
  --color-base: #0b1f3b;
  --color-base-light: #2f415f;
  --color-accent: #c18f4a;
  --color-border: #e0e0e0;
  --container-width: 1200px;
  --header-height: 80px;
  --section-padding: clamp(4rem, 6vw, 8rem);
  --font-sans: "Noto Sans JP", sans-serif;
  --font-serif: "Noto Serif JP", serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-main);
  background-color: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

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

ul {
  list-style: none;
}

.font-serif {
  font-family: var(--font-serif);
}

.text-accent {
  color: var(--color-accent);
}

.text-white {
  color: var(--color-text-light);
}

.text-center {
  text-align: center;
}

.text-muted {
  color: var(--color-text-muted);
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
}

.section-subtitle {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--color-accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.container {
  width: 90%;
  max-width: var(--container-width);
  margin: 0 auto;
}

.section {
  padding: var(--section-padding) 0;
}

.bg-subtle {
  background-color: var(--color-bg-subtle);
}

.bg-dark {
  background-color: var(--color-bg-dark);
  color: #fff;
}

.bg-white {
  background-color: #fff;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--color-base);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--color-base-light);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  background-color: var(--color-base);
  color: #fff;
}

.btn-gold {
  background-color: var(--color-accent);
  color: #fff;
}

.btn-gold:hover {
  background-color: #d4a057;
  transform: translateY(-2px);
}

.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: background-color 0.4s ease, box-shadow 0.4s ease;
  display: flex;
  align-items: center;
}

.header.scrolled {
  background-color: rgba(11, 31, 59, 0.98);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  height: 70px;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: #fff;
}

.nav-menu {
  display: none;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 900px) {
  .nav-menu {
    display: flex;
  }
}

.nav-link {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
}

.nav-link:hover {
  color: #fff;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width 0.3s;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-btn {
  padding: 0.6rem 1.5rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: 2px;
  font-size: 0.9rem;
}

.nav-btn:hover {
  background: #fff;
  color: var(--color-base);
}

.footer {
  padding: 4rem 0 2rem;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  text-align: center;
}

.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  background: var(--color-base);
  color: #fff;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-top: var(--header-height);
}

.hero-text-block h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  line-height: 1.4;
  margin-bottom: 2rem;
}

.hero-lead {
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  line-height: 2;
  margin-bottom: 3rem;
  max-width: 600px;
  border-left: 1px solid var(--color-accent);
  padding-left: 2rem;
}

.page-header {
  background: var(--color-bg-dark);
  color: #fff;
  padding: 8rem 0 3rem;
  text-align: center;
}

.page-header-title {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}

.page-header-subtitle {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-accent);
  letter-spacing: 0.2em;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

@media (min-width: 768px) {
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  background: #fff;
  padding: 2rem;
  border-top: 3px solid var(--color-accent);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
  transition: transform 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
}

.feature-number {
  font-family: var(--font-serif);
  font-size: 3rem;
  color: var(--color-bg-subtle);
  font-weight: 700;
  margin-bottom: -1rem;
  -webkit-text-stroke: 1px var(--color-border);
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  padding-top: 1rem;
}

.service-teaser-grid {
  display: grid;
  gap: 2rem;
  margin-top: 3rem;
}

@media (min-width: 768px) {
  .service-teaser-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-teaser {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 2rem;
  transition: all 0.3s;
}

.service-teaser:hover {
  border-color: var(--color-base);
  transform: translateY(-5px);
}

.service-icon {
  font-size: 2rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.news-list {
  margin-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.news-item {
  display: flex;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-border);
  align-items: baseline;
  gap: 1rem;
  transition: background 0.2s;
}

.news-item:hover {
  background: var(--color-bg-subtle);
  padding-left: 1rem;
  padding-right: 1rem;
  margin-left: -1rem;
  margin-right: -1rem;
}

.news-date {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  min-width: 100px;
}

.news-tag {
  background: var(--color-base);
  color: #fff;
  padding: 2px 8px;
  font-size: 0.75rem;
  margin-right: 10px;
}

.news-link {
  font-weight: 500;
}

.greeting-section {
  display: grid;
  gap: 3rem;
  margin-bottom: 4rem;
}

@media (min-width: 768px) {
  .greeting-section {
    grid-template-columns: 300px 1fr;
    align-items: start;
  }
}

.greeting-img {
  width: 100%;
  border-radius: 2px;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3/4;
}

.greeting-text h3 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
  line-height: 1.4;
}

.staff-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.staff-card {
  background: #fff;
  border: 1px solid var(--color-border);
}

.staff-img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.staff-info {
  padding: 1.5rem;
}

.staff-info h4 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  font-family: var(--font-serif);
}

.service-block {
  margin-bottom: 6rem;
  background: #fff;
  border: 1px solid var(--color-border);
}

.service-header {
  background: var(--color-bg-subtle);
  padding: 3rem;
  border-bottom: 1px solid var(--color-border);
}

.service-title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--color-base);
  margin-bottom: 0.5rem;
}

.service-body {
  padding: 3rem;
}

@media (min-width: 768px) {
  .service-body-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

.check-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.8rem;
  font-weight: 500;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

.flow-box {
  background: var(--color-bg-subtle);
  padding: 2rem;
  border-radius: 4px;
  margin-top: 2rem;
}

.flow-step {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.flow-num {
  background: var(--color-base);
  color: #fff;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
  flex-shrink: 0;
}

.contact-wrapper {
  background: #fff;
  padding: 3rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
  max-width: 800px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 700;
  font-size: 0.9rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 1rem;
  border: 1px solid #ccc;
  font-family: inherit;
}

.form-textarea {
  height: 150px;
  resize: vertical;
}

.blog-list {
  display: grid;
  gap: 2rem;
}

.blog-item {
  display: grid;
  gap: 1rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .blog-item {
    grid-template-columns: 240px 1fr;
    gap: 2rem;
  }
}

.blog-thumb {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 2px;
}

.blog-meta {
  font-size: 0.85rem;
  color: #666;
  margin-bottom: 0.5rem;
}

.blog-cat {
  background: var(--color-base);
  color: #fff;
  padding: 2px 8px;
  font-size: 0.75rem;
  margin-right: 0.5rem;
}

.blog-title {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.article-container {
  max-width: 900px;
  margin: 0 auto;
  padding-top: calc(var(--header-height) + 4rem);
  padding-bottom: 4rem;
}

.article-header {
  text-align: center;
  margin-bottom: 3rem;
}

.article-meta {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: #666;
}

.article-cat {
  background: var(--color-base);
  color: #fff;
  padding: 2px 10px;
  font-size: 0.8rem;
}

.article-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  line-height: 1.4;
  margin-bottom: 2rem;
}

.article-thumb {
  width: 100%;
  height: auto;
  max-height: 500px;
  object-fit: cover;
  margin-bottom: 4rem;
  border-radius: 2px;
}

.article-content {
  background: #fff;
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid var(--color-border);
  font-size: 1.05rem;
}

.article-content h2 {
  font-size: 1.6rem;
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 0.5rem;
  margin: 3rem 0 1.5rem;
  font-family: var(--font-serif);
}

.article-content h3 {
  font-size: 1.3rem;
  margin: 2.5rem 0 1rem;
  padding-left: 1rem;
  border-left: 4px solid var(--color-base);
}

.article-content p {
  margin-bottom: 1.5rem;
  text-align: justify;
}

.article-content ul {
  margin-bottom: 1.5rem;
  padding-left: 2rem;
  list-style-type: disc;
}

.article-content li {
  margin-bottom: 0.5rem;
}

.cta-box {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  padding: 2rem;
  text-align: center;
  margin-top: 4rem;
}