:root {
  --color-bg: #F8F4EC;
  --color-bg-alt: #EFE8DA;
  --color-text: #2A2A2A;
  --color-text-muted: #666;
  --color-primary: #1F4D3B;
  --color-primary-dark: #143126;
  --color-accent: #C8A24A;
  --color-line: #DDD3C0;
  --color-white: #FFF;
  --font-serif: "Noto Serif JP", "Yu Mincho", "游明朝", serif;
  --font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(31, 77, 59, 0.08);
  --container: 1120px;
  --radius: 4px;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  color: var(--color-text);
  background: var(--color-bg);
  letter-spacing: 0.02em;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.04em;
}

/* ===== Sample bar (top fixed banner) ===== */
.sample-bar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: repeating-linear-gradient(
    -45deg,
    #C8A24A 0,
    #C8A24A 16px,
    #B8932F 16px,
    #B8932F 32px
  );
  color: #1F2D24;
  padding: 10px 16px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-bottom: 2px solid #1F4D3B;
  line-height: 1.5;
}
.sample-bar strong {
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: 0.3em;
  margin-right: 12px;
  background: #1F4D3B;
  color: #C8A24A;
  padding: 2px 12px;
  border-radius: 2px;
}
@media (max-width: 600px) {
  .sample-bar { font-size: 11px; padding: 8px 10px; }
  .sample-bar strong { font-size: 12px; margin-right: 6px; padding: 2px 8px; }
  .sample-bar__sub { display: block; margin-top: 4px; }
}

/* ===== Sample ribbon (corner badge on hero) ===== */
.sample-ribbon {
  position: absolute;
  top: 32px;
  right: -64px;
  background: #C8A24A;
  color: #1F4D3B;
  padding: 10px 80px;
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.4em;
  transform: rotate(45deg);
  z-index: 6;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  pointer-events: none;
}
@media (max-width: 600px) {
  .sample-ribbon { top: 24px; right: -52px; padding: 8px 60px; font-size: 11px; }
}

/* ===== Sample warning notice (works/voice sections) ===== */
.sample-notice {
  display: inline-block;
  margin-top: 16px;
  padding: 10px 20px;
  background: #FFF8E1;
  border: 1px dashed #C8A24A;
  border-radius: 4px;
  color: #6E5A1F;
  font-size: 13px;
  font-weight: 500;
}
.sample-notice::before {
  content: "⚠ ";
  font-weight: 700;
}

/* ===== Fictional marker (small label after company info values) ===== */
.fictional {
  display: inline-block;
  font-size: 10px;
  background: #C8A24A;
  color: #1F4D3B;
  padding: 1px 6px;
  border-radius: 2px;
  margin-left: 6px;
  vertical-align: middle;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 44px;
  z-index: 50;
  background: rgba(248, 244, 236, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-line);
}
@media (max-width: 600px) {
  .header { top: 64px; }
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
}
.header__logo svg { width: 32px; height: 32px; }
.header__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.header__nav a {
  font-size: 14px;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
  transition: color 0.2s;
}
.header__nav a:hover { color: var(--color-primary); }
.header__nav a.is-current { color: var(--color-primary); }
.header__nav a.is-current::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--color-accent);
}
.header__cta {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  transition: background 0.2s;
}
.header__cta:hover { background: var(--color-primary-dark); }
.header__burger {
  display: none;
  width: 32px; height: 32px;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}
.header__burger span {
  display: block;
  height: 2px;
  background: var(--color-primary);
  transition: transform 0.3s, opacity 0.3s;
}
.header__burger.is-open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.header__burger.is-open span:nth-child(2) { opacity: 0; }
.header__burger.is-open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

@media (max-width: 768px) {
  .header__nav, .header__cta { display: none; }
  .header__burger { display: flex; }
  .header.is-menu-open .header__nav {
    display: flex;
    position: absolute;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    background: var(--color-bg);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--color-line);
    box-shadow: var(--shadow-md);
  }
  .header.is-menu-open .header__cta {
    display: inline-block;
    margin-top: 12px;
    text-align: center;
  }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 540px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #1F4D3B 0%, #143126 100%);
  color: var(--color-white);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("../img/hero.jpg");
  background-size: cover;
  background-position: center;
  opacity: 0.18;
  mix-blend-mode: luminosity;
}
.hero__inner {
  position: relative;
  z-index: 1;
  padding: 80px 0;
}
.hero__lead {
  font-size: 13px;
  letter-spacing: 0.4em;
  color: var(--color-accent);
  margin-bottom: 16px;
}
.hero__title {
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.5;
  margin-bottom: 24px;
}
.hero__title em { font-style: normal; color: var(--color-accent); }
.hero__sub {
  font-size: 16px;
  line-height: 1.9;
  margin-bottom: 36px;
  max-width: 580px;
  opacity: 0.95;
}
.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s;
}
.hero__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}
.hero__cta::after { content: "→"; }

/* ===== Section common ===== */
.section {
  padding: 120px 0;
}
.section--alt { background: var(--color-bg-alt); }
.section__head {
  text-align: center;
  margin-bottom: 64px;
}
.section__lead {
  font-size: 12px;
  letter-spacing: 0.4em;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.section__title {
  font-size: clamp(24px, 3vw, 32px);
}
.section__desc {
  margin-top: 16px;
  color: var(--color-text-muted);
  font-size: 15px;
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .section__head { margin-bottom: 40px; }
}

/* ===== Strengths (3 cards) ===== */
.strengths {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.strength-card {
  background: var(--color-white);
  padding: 40px 32px;
  border-radius: var(--radius);
  border-top: 3px solid var(--color-accent);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s, box-shadow 0.3s;
}
.strength-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.strength-card__num {
  font-family: var(--font-serif);
  font-size: 32px;
  color: var(--color-accent);
  margin-bottom: 16px;
  letter-spacing: 0.08em;
}
.strength-card__title {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--color-primary);
}
.strength-card__text {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.9;
}
@media (max-width: 768px) {
  .strengths { grid-template-columns: 1fr; gap: 20px; }
  .strength-card { padding: 28px 24px; }
}

/* ===== Service summary cards ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--color-white);
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--color-line);
  display: flex;
  flex-direction: column;
}
.service-card__icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-bg-alt);
  border-radius: 50%;
  margin-bottom: 20px;
  color: var(--color-primary);
  font-size: 20px;
  font-weight: 600;
  font-family: var(--font-serif);
}
.service-card__title {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--color-primary);
}
.service-card__text {
  font-size: 14px;
  color: var(--color-text-muted);
  flex-grow: 1;
  margin-bottom: 16px;
}
.service-card__link {
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 600;
}
.service-card__link::after { content: " →"; }
@media (max-width: 768px) {
  .services-grid { grid-template-columns: 1fr; }
}

/* ===== Works (case studies) ===== */
.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.work-card {
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-line);
}
.work-card__thumb {
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, #1F4D3B, #2C6B54);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: 0.2em;
}
.work-card__body { padding: 20px 24px 28px; }
.work-card__tag {
  display: inline-block;
  font-size: 11px;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.work-card__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}
.work-card__text { font-size: 13px; color: var(--color-text-muted); }
@media (max-width: 768px) {
  .works-grid { grid-template-columns: 1fr; }
}

/* ===== Voice (testimonials) ===== */
.voices {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.voice {
  background: var(--color-white);
  padding: 40px;
  border-radius: var(--radius);
  position: relative;
  box-shadow: var(--shadow-sm);
}
.voice::before {
  content: "“";
  position: absolute;
  top: 8px; left: 24px;
  font-family: var(--font-serif);
  font-size: 64px;
  line-height: 1;
  color: var(--color-accent);
  opacity: 0.4;
}
.voice__body {
  font-size: 15px;
  line-height: 2;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}
.voice__person {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--color-line);
  padding-top: 20px;
}
.voice__avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  color: var(--color-primary);
  font-size: 14px;
}
.voice__name { font-size: 13px; font-weight: 600; }
.voice__role { font-size: 12px; color: var(--color-text-muted); }
@media (max-width: 768px) {
  .voices { grid-template-columns: 1fr; gap: 20px; }
  .voice { padding: 28px 24px; }
}

/* ===== CTA banner ===== */
.cta-banner {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 80px 0;
  text-align: center;
}
.cta-banner__title {
  font-size: clamp(22px, 3vw, 28px);
  margin-bottom: 16px;
}
.cta-banner__text {
  font-size: 15px;
  margin-bottom: 32px;
  opacity: 0.9;
}
.cta-banner__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  padding: 14px 36px;
  border-radius: var(--radius);
  font-weight: 600;
  transition: transform 0.2s;
}
.cta-banner__btn:hover { transform: translateY(-2px); }
.cta-banner__btn::after { content: "→"; }

/* ===== Footer ===== */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 64px 0 32px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer__about__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 18px;
  margin-bottom: 16px;
  color: var(--color-white);
}
.footer__about__logo svg { width: 32px; height: 32px; }
.footer__about p { font-size: 13px; line-height: 1.9; opacity: 0.8; }
.footer__col h4 {
  font-size: 13px;
  letter-spacing: 0.2em;
  margin-bottom: 16px;
  color: var(--color-accent);
  font-family: var(--font-sans);
}
.footer__col ul li { margin-bottom: 10px; }
.footer__col a {
  font-size: 13px;
  opacity: 0.85;
  transition: opacity 0.2s;
}
.footer__col a:hover { opacity: 1; color: var(--color-accent); }
.footer__bottom {
  padding-top: 24px;
  font-size: 12px;
  text-align: center;
  opacity: 0.6;
}
@media (max-width: 768px) {
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ===== Page hero (sub pages) ===== */
.page-hero {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 80px 0;
  text-align: center;
}
.page-hero__lead {
  font-size: 12px;
  letter-spacing: 0.4em;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.page-hero__title {
  font-size: clamp(28px, 4vw, 40px);
}
.breadcrumb {
  background: var(--color-bg-alt);
  padding: 12px 0;
  font-size: 12px;
  color: var(--color-text-muted);
}
.breadcrumb a { color: var(--color-primary); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { margin: 0 8px; opacity: 0.5; }

/* ===== Service detail ===== */
.service-detail {
  background: var(--color-white);
  padding: 56px;
  border-radius: var(--radius);
  margin-bottom: 48px;
  box-shadow: var(--shadow-sm);
}
.service-detail__head {
  display: flex;
  align-items: baseline;
  gap: 24px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-line);
}
.service-detail__num {
  font-family: var(--font-serif);
  font-size: 32px;
  color: var(--color-accent);
}
.service-detail__title {
  font-size: 24px;
  color: var(--color-primary);
}
.service-detail__lead {
  font-size: 15px;
  line-height: 2;
  margin-bottom: 32px;
}
.service-detail__meta {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 12px 24px;
  margin-bottom: 32px;
  font-size: 14px;
}
.service-detail__meta dt {
  color: var(--color-primary);
  font-weight: 600;
  border-left: 3px solid var(--color-accent);
  padding-left: 10px;
}
.service-detail__meta dd { color: var(--color-text-muted); }
.service-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.flow-step {
  background: var(--color-bg);
  padding: 20px;
  border-radius: var(--radius);
  text-align: center;
}
.flow-step__num {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: 8px;
}
.flow-step__title { font-size: 14px; font-weight: 600; }
@media (max-width: 768px) {
  .service-detail { padding: 32px 24px; }
  .service-detail__head { flex-direction: column; gap: 8px; }
  .service-detail__meta { grid-template-columns: 1fr; gap: 4px 0; }
  .service-detail__meta dt { margin-top: 12px; }
  .service-flow { grid-template-columns: repeat(2, 1fr); }
}

/* ===== Company ===== */
.greeting {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 48px;
  align-items: start;
}
.greeting__photo {
  aspect-ratio: 3 / 4;
  background: linear-gradient(135deg, #1F4D3B, #2C6B54);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-family: var(--font-serif);
  border-radius: var(--radius);
}
.greeting__body p {
  margin-bottom: 16px;
  font-size: 15px;
  line-height: 2;
}
.greeting__sign {
  margin-top: 24px;
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--color-primary);
}
.greeting__sign small {
  display: block;
  font-size: 12px;
  font-family: var(--font-sans);
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.company-table {
  width: 100%;
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.company-table tr { border-bottom: 1px solid var(--color-line); }
.company-table tr:last-child { border-bottom: 0; }
.company-table th, .company-table td {
  padding: 20px 24px;
  text-align: left;
  font-size: 14px;
  vertical-align: top;
}
.company-table th {
  width: 200px;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  font-weight: 600;
}

.timeline {
  position: relative;
  padding-left: 32px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--color-line);
}
.timeline__item {
  position: relative;
  padding-bottom: 32px;
}
.timeline__item::before {
  content: "";
  position: absolute;
  left: -32px;
  top: 6px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 4px solid var(--color-bg);
}
.timeline__year {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--color-primary);
  margin-bottom: 4px;
}
.timeline__text { font-size: 14px; color: var(--color-text-muted); }

.access-map {
  aspect-ratio: 16 / 7;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 13px;
  border: 1px dashed var(--color-line);
}

@media (max-width: 768px) {
  .greeting { grid-template-columns: 1fr; gap: 24px; }
  .greeting__photo { max-width: 200px; margin: 0 auto; }
  .company-table th, .company-table td { padding: 14px 16px; font-size: 13px; }
  .company-table th { width: 100px; }
}

/* ===== Contact form ===== */
.contact-notice {
  background: #FFF8E1;
  border-left: 3px solid var(--color-accent);
  padding: 16px 20px;
  margin-bottom: 32px;
  font-size: 13px;
  color: #6E5A1F;
}
.form {
  max-width: 720px;
  margin: 0 auto;
  background: var(--color-white);
  padding: 56px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.form__row { margin-bottom: 24px; }
.form__row label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}
.form__row label .req {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 2px;
  margin-left: 8px;
  vertical-align: middle;
}
.form input, .form textarea, .form select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
  font-size: 14px;
  transition: border-color 0.2s;
}
.form input:focus, .form textarea:focus, .form select:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-white);
}
.form textarea { min-height: 160px; resize: vertical; }
.form__submit {
  display: block;
  width: 100%;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 16px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  margin-top: 32px;
  transition: background 0.2s;
}
.form__submit:hover { background: var(--color-primary-dark); }
@media (max-width: 768px) {
  .form { padding: 32px 24px; }
}

/* ===== Thanks page ===== */
.thanks {
  text-align: center;
  padding: 120px 24px;
}
.thanks__icon {
  width: 80px; height: 80px;
  margin: 0 auto 32px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  font-family: var(--font-serif);
}
.thanks__title {
  font-size: 28px;
  color: var(--color-primary);
  margin-bottom: 16px;
}
.thanks__text {
  color: var(--color-text-muted);
  margin-bottom: 32px;
}
.thanks__btn {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 12px 32px;
  border-radius: var(--radius);
  font-size: 14px;
}

/* ===== Fade-in on scroll ===== */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.is-visible {
  opacity: 1;
  transform: none;
}

/* ===== iframe-mode (when embedded in blog) ===== */
body.is-iframed .header { box-shadow: none; }
body.is-iframed .header__cta { display: none; }
@media (max-width: 768px) {
  body.is-iframed .header__inner { height: 56px; }
}