@charset "UTF-8";
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "IBM Plex Sans JP", sans-serif;
  background: #f5f0e6;
  color: #2a241a;
  font-weight: 400;
  line-height: 1.7;
  font-size: 15px;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(42, 36, 26, 0.04) 1px, transparent 0);
  background-size: 4px 4px;
  pointer-events: none;
  z-index: 1;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 2;
}
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
}

section {
  padding: 120px 0;
  position: relative;
}
@media (max-width: 768px) {
  section {
    padding: 80px 0;
  }
}

.section-num {
  font-family: "Crimson Pro", serif;
  font-style: italic;
  font-size: 13px;
  color: #8b5e10;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.section-title {
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  font-size: clamp(32px, 4.5vw, 52px);
  line-height: 1.3;
  letter-spacing: -0.015em;
  margin-bottom: 32px;
  color: #2a241a;
}

.section-lead {
  font-size: 17px;
  line-height: 1.85;
  color: #5c5240;
  max-width: 680px;
  margin-bottom: 64px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

nav {
  position: sticky;
  top: 0;
  background: rgba(245, 240, 230, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(42, 36, 26, 0.12);
  z-index: 100;
  padding: 14px 0;
}
nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  line-height: 1;
}
.logo-link img {
  height: 36px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
  font-size: 13px;
}
@media (max-width: 768px) {
  .nav-links {
    gap: 16px;
  }
}
.nav-links a {
  color: #5c5240;
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover {
  color: #8b5e10;
}
@media (max-width: 768px) {
  .nav-links a:not(.nav-cta) {
    display: none;
  }
}

.nav-cta {
  background: #2a241a;
  color: #f5f0e6 !important;
  padding: 10px 22px;
  border-radius: 2px;
  font-size: 13px;
  text-decoration: none;
  transition: all 0.25s;
  letter-spacing: 0.02em;
}
.nav-cta:hover {
  background: #8b5e10 !important;
}

.hero {
  padding: 120px 0 140px;
  position: relative;
  overflow: hidden;
  min-height: 640px;
}
@media (max-width: 768px) {
  .hero {
    padding: 70px 0 90px;
    min-height: auto;
  }
}

.hero-bg-image {
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
  height: 100%;
  background-image: url("https://images.unsplash.com/photo-1497366216548-37526070297c?w=1600&q=80");
  background-size: cover;
  background-position: center;
  z-index: 0;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, rgba(0, 0, 0, 0.3) 30%, black 70%);
  mask-image: linear-gradient(to right, transparent 0%, rgba(0, 0, 0, 0.3) 30%, black 70%);
}
@media (max-width: 768px) {
  .hero-bg-image {
    width: 100%;
    opacity: 0.35;
  }
}

.hero-bg-overlay {
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
  height: 100%;
  background: linear-gradient(to right, #f5f0e6 0%, rgba(245, 240, 230, 0.5) 40%, rgba(245, 240, 230, 0.25) 100%), linear-gradient(to bottom, rgba(184, 132, 31, 0.08), rgba(42, 36, 26, 0.05));
  z-index: 1;
  pointer-events: none;
}
@media (max-width: 768px) {
  .hero-bg-overlay {
    width: 100%;
    background: linear-gradient(to bottom, #f5f0e6 0%, rgba(245, 240, 230, 0.85) 50%, rgba(245, 240, 230, 0.95) 100%);
  }
}

.hero::after {
  content: "";
  position: absolute;
  top: 60px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(184, 132, 31, 0.12) 0%, transparent 60%);
  pointer-events: none;
  z-index: 2;
}

.hero .container {
  position: relative;
  z-index: 3;
}

.hero-content {
  max-width: 620px;
}
@media (max-width: 768px) {
  .hero-content {
    max-width: 100%;
  }
}

.hero-eyebrow {
  font-family: "Crimson Pro", serif;
  font-style: italic;
  font-size: 16px;
  color: #8b5e10;
  letter-spacing: 0.05em;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.hero-eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: #b8841f;
}

.hero h1 {
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  font-size: clamp(40px, 6.2vw, 76px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin-bottom: 32px;
  color: #2a241a;
  word-break: keep-all;
  overflow-wrap: break-word;
}
.hero h1 .accent {
  position: relative;
  display: inline-block;
}
.hero h1 .accent::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: -4px;
  right: -4px;
  height: 12px;
  background: #e6c87a;
  z-index: -1;
  opacity: 0.5;
}

.hero-sub {
  font-size: 17px;
  line-height: 1.85;
  color: #5c5240;
  margin-bottom: 24px;
}

.hero-meta {
  font-family: "Crimson Pro", serif;
  font-size: 14px;
  color: #8a7e64;
  letter-spacing: 0.04em;
  margin-bottom: 48px;
  display: flex;
  gap: 18px;
  align-items: center;
}
@media (max-width: 768px) {
  .hero-meta {
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 28px;
  }
}
.hero-meta span {
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-meta .dot {
  width: 4px;
  height: 4px;
  background: #b8841f;
  border-radius: 50%;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}
@media (max-width: 768px) {
  .hero-ctas {
    gap: 12px;
  }
}

.btn-primary {
  background: #2a241a;
  color: #f5f0e6;
  padding: 16px 36px;
  border-radius: 2px;
  font-size: 14px;
  text-decoration: none;
  transition: all 0.25s;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
@media (max-width: 768px) {
  .btn-primary {
    padding: 14px 28px;
    font-size: 13px;
  }
}
.btn-primary:hover {
  background: #8b5e10;
  transform: translateY(-1px);
}
.btn-primary .arrow {
  transition: transform 0.25s;
}
.btn-primary:hover .arrow {
  transform: translateX(4px);
}

.btn-secondary {
  background: transparent;
  color: #2a241a;
  padding: 16px 32px;
  border-radius: 2px;
  font-size: 14px;
  text-decoration: none;
  border: 1px solid #2a241a;
  transition: all 0.25s;
  letter-spacing: 0.04em;
}
@media (max-width: 768px) {
  .btn-secondary {
    padding: 14px 28px;
    font-size: 13px;
  }
}
.btn-secondary:hover {
  background: #2a241a;
  color: #f5f0e6;
}

.problem {
  background: #ede5d3;
}
.problem-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(42, 36, 26, 0.12);
  border-top: 1px solid rgba(42, 36, 26, 0.12);
  border-bottom: 1px solid rgba(42, 36, 26, 0.12);
}
@media (max-width: 768px) {
  .problem-list {
    grid-template-columns: 1fr;
  }
}
.problem-item {
  background: #ede5d3;
  padding: 48px 40px;
  position: relative;
}
.problem-item h3 {
  font-family: "Noto Serif JP", serif;
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 14px;
  line-height: 1.5;
  color: #2a241a;
}
.problem-item p {
  font-size: 14px;
  line-height: 1.85;
  color: #5c5240;
}
.problem-num {
  font-family: "Crimson Pro", serif;
  font-style: italic;
  font-size: 14px;
  color: #b8841f;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}
.problem-conclusion {
  margin-top: 64px;
  padding: 36px 0;
  text-align: center;
  font-family: "Noto Serif JP", serif;
  font-size: 22px;
  font-weight: 500;
  color: #2a241a;
  letter-spacing: 0.02em;
}
.problem-conclusion .em {
  color: #8b5e10;
  font-weight: 700;
}

.solution {
  padding-bottom: 0;
}
.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 48px;
}
@media (max-width: 768px) {
  .solution-grid {
    grid-template-columns: 1fr;
  }
}
.solution-card {
  padding: 56px 40px;
  border-right: 1px solid rgba(42, 36, 26, 0.12);
  border-top: 1px solid rgba(42, 36, 26, 0.12);
  border-bottom: 1px solid rgba(42, 36, 26, 0.12);
  position: relative;
  background: #f5f0e6;
  transition: background 0.3s;
}
.solution-card:first-child {
  border-left: 1px solid rgba(42, 36, 26, 0.12);
}
.solution-card:hover {
  background: #ede5d3;
}
@media (max-width: 768px) {
  .solution-card {
    border-left: 1px solid rgba(42, 36, 26, 0.12);
  }
  .solution-card:not(:last-child) {
    border-bottom: none;
  }
}
.solution-card h3 {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 22px;
  margin-bottom: 16px;
  color: #2a241a;
}
.solution-card p {
  font-size: 14px;
  line-height: 1.85;
  color: #5c5240;
}
.solution-num {
  font-family: "Crimson Pro", serif;
  font-size: 48px;
  font-weight: 300;
  color: #b8841f;
  line-height: 1;
  margin-bottom: 24px;
}

.demo {
  background: #ede5d3;
}
.demo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
  margin-top: 48px;
}
@media (max-width: 768px) {
  .demo-grid {
    grid-template-columns: 1fr;
  }
}
.demo-mockup {
  background: #2a241a;
  border-radius: 4px;
  padding: 48px 32px;
  min-height: 500px;
  position: relative;
  overflow: hidden;
}
.demo-mockup-label {
  position: absolute;
  top: 16px;
  left: 20px;
  font-family: "Crimson Pro", serif;
  font-size: 11px;
  color: #e6c87a;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.demo-caption {
  padding: 8px 0;
}
.demo-caption h4 {
  font-family: "Noto Serif JP", serif;
  font-size: 22px;
  font-weight: 500;
  margin-bottom: 14px;
  color: #2a241a;
}
.demo-caption p {
  font-size: 14px;
  line-height: 1.85;
  color: #5c5240;
  margin-bottom: 20px;
}
.demo-caption ul {
  list-style: none;
  margin-top: 16px;
}
.demo-caption ul li {
  font-size: 13px;
  color: #5c5240;
  padding: 8px 0;
  border-bottom: 1px dashed rgba(42, 36, 26, 0.12);
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.demo-caption ul li::before {
  content: "—";
  color: #b8841f;
}

.chat-bubble {
  background: #f5f0e6;
  padding: 14px 18px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.7;
  margin-bottom: 14px;
  max-width: 85%;
  color: #2a241a;
}
.chat-bubble.user {
  background: #06c755;
  color: white;
  margin-left: auto;
  border-radius: 14px 14px 2px 14px;
}
.chat-bubble.bot {
  border-radius: 2px 14px 14px 14px;
}
.chat-bubble small {
  display: block;
  margin-top: 8px;
  font-size: 11px;
  color: #8a7e64;
}

.admin-mockup {
  background: #f5f0e6;
  border: 1px solid rgba(42, 36, 26, 0.12);
  border-radius: 2px;
  padding: 0;
  min-height: 500px;
  overflow: hidden;
}

.admin-header {
  background: #e3d9c3;
  padding: 12px 20px;
  border-bottom: 1px solid rgba(42, 36, 26, 0.12);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: #8a7e64;
}
.admin-header .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.admin-header .dot:nth-child(1) {
  background: #ed7770;
}
.admin-header .dot:nth-child(2) {
  background: #e8b955;
}
.admin-header .dot:nth-child(3) {
  background: #79c479;
}

.admin-content {
  padding: 24px;
}

.admin-tabs {
  display: flex;
  gap: 24px;
  border-bottom: 1px solid rgba(42, 36, 26, 0.12);
  margin-bottom: 24px;
  font-size: 12px;
}

.admin-tab {
  padding: 10px 0;
  color: #8a7e64;
  cursor: pointer;
}
.admin-tab.active {
  color: #8b5e10;
  border-bottom: 2px solid #b8841f;
  margin-bottom: -1px;
}

.admin-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(42, 36, 26, 0.12);
  font-size: 13px;
}
.admin-row .name {
  color: #2a241a;
  font-weight: 500;
}
.admin-row .meta {
  color: #8a7e64;
  font-size: 11px;
}

.admin-status {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(184, 132, 31, 0.15);
  color: #8b5e10;
  font-size: 10px;
  border-radius: 2px;
  letter-spacing: 0.05em;
}

.security {
  background: #2a241a;
  color: #f5f0e6;
}
.security .section-num {
  color: #e6c87a;
}
.security .section-title {
  color: #f5f0e6;
}
.security .section-lead {
  color: rgba(245, 240, 230, 0.8);
}
.security-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(245, 240, 230, 0.1);
  border-top: 1px solid rgba(245, 240, 230, 0.1);
  border-bottom: 1px solid rgba(245, 240, 230, 0.1);
}
@media (max-width: 768px) {
  .security-grid {
    grid-template-columns: 1fr;
  }
}
.security-item {
  background: #2a241a;
  padding: 48px 40px;
}
.security-item h3 {
  font-family: "Noto Serif JP", serif;
  font-size: 22px;
  font-weight: 500;
  margin-bottom: 16px;
  line-height: 1.5;
  color: #f5f0e6;
}
.security-item p {
  font-size: 14px;
  line-height: 1.85;
  color: rgba(245, 240, 230, 0.75);
}
.security-num {
  font-family: "Crimson Pro", serif;
  font-style: italic;
  font-size: 13px;
  color: #e6c87a;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.compare-table {
  border-top: 2px solid #2a241a;
  margin-top: 48px;
  width: 100%;
}
@media (max-width: 768px) {
  .compare-table {
    overflow-x: auto;
  }
}
.compare-table table {
  width: 100%;
  border-collapse: collapse;
}
@media (max-width: 768px) {
  .compare-table table {
    min-width: 640px;
  }
}
.compare-table th, .compare-table td {
  text-align: left;
  padding: 20px 24px;
  border-bottom: 1px solid rgba(42, 36, 26, 0.12);
  font-size: 14px;
}
.compare-table th {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  color: #2a241a;
  background: #ede5d3;
  font-size: 14px;
}
.compare-table th.lbrain {
  background: #2a241a;
  color: #f5f0e6;
  position: relative;
}
.compare-table th.lbrain::before {
  content: "L-Brain";
  font-family: "Crimson Pro", serif;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.compare-table td {
  color: #5c5240;
}
.compare-table td.lbrain {
  background: rgba(184, 132, 31, 0.08);
  color: #2a241a;
  font-weight: 500;
}
.compare-table tr td:first-child {
  font-weight: 500;
  color: #2a241a;
}

.compare-conclusion {
  margin-top: 48px;
  padding: 32px;
  background: #ede5d3;
  border-left: 3px solid #b8841f;
  font-family: "Noto Serif JP", serif;
  font-size: 19px;
  line-height: 1.8;
  color: #2a241a;
}
.compare-conclusion .em {
  color: #8b5e10;
  font-weight: 700;
}

.steps {
  background: #ede5d3;
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
  position: relative;
}
@media (max-width: 768px) {
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}
.steps-grid::before {
  content: "";
  position: absolute;
  top: 32px;
  left: 5%;
  right: 5%;
  height: 1px;
  background: repeating-linear-gradient(to right, #b8841f 0, #b8841f 4px, transparent 4px, transparent 12px);
}
@media (max-width: 768px) {
  .steps-grid::before {
    display: none;
  }
}

.step-card {
  text-align: left;
  position: relative;
  z-index: 1;
}
.step-card h4 {
  font-family: "Noto Serif JP", serif;
  font-size: 19px;
  font-weight: 500;
  margin-bottom: 12px;
  color: #2a241a;
}
.step-card p {
  font-size: 13px;
  line-height: 1.85;
  color: #5c5240;
}

.step-num-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #f5f0e6;
  border: 1px solid #b8841f;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Crimson Pro", serif;
  font-size: 22px;
  color: #8b5e10;
  margin-bottom: 24px;
  font-style: italic;
  font-weight: 500;
}

.pricing-wrap {
  margin-top: 48px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
@media (max-width: 768px) {
  .pricing-wrap {
    max-width: 100%;
  }
}

.price-hero {
  background: #2a241a;
  color: #f5f0e6;
  padding: 64px 56px;
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}
@media (max-width: 768px) {
  .price-hero {
    padding: 40px 28px;
  }
}
.price-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(184, 132, 31, 0.18) 0%, transparent 70%);
  pointer-events: none;
}
.price-hero h3 {
  font-family: "Noto Serif JP", serif;
  font-size: 28px;
  font-weight: 500;
  margin-bottom: 8px;
  color: #f5f0e6;
  position: relative;
  z-index: 1;
}
.price-hero .price-sub {
  font-family: "Crimson Pro", serif;
  font-style: italic;
  font-size: 15px;
  color: #e6c87a;
  margin-bottom: 32px;
  letter-spacing: 0.03em;
  position: relative;
  z-index: 1;
}

.price-tag-top {
  display: inline-block;
  font-family: "Crimson Pro", serif;
  font-style: italic;
  font-size: 13px;
  color: #e6c87a;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
  text-transform: uppercase;
  position: relative;
  z-index: 1;
}
.price-tag-top::before {
  content: "";
  display: inline-block;
  width: 32px;
  height: 1px;
  background: #e6c87a;
  vertical-align: middle;
  margin-right: 14px;
}

.price-amount-big {
  font-family: "Crimson Pro", serif;
  font-size: 88px;
  font-weight: 300;
  color: #f5f0e6;
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
  position: relative;
  z-index: 1;
}
@media (max-width: 768px) {
  .price-amount-big {
    font-size: 60px;
  }
}
.price-amount-big .yen {
  font-size: 40px;
  margin-right: 8px;
  color: #e6c87a;
  font-weight: 400;
}
@media (max-width: 768px) {
  .price-amount-big .yen {
    font-size: 28px;
  }
}
.price-amount-big .tax {
  font-size: 16px;
  color: rgba(245, 240, 230, 0.6);
  margin-left: 12px;
  font-style: italic;
}

.price-amount-label {
  font-size: 14px;
  color: rgba(245, 240, 230, 0.75);
  margin-bottom: 40px;
  position: relative;
  z-index: 1;
}

.price-divider {
  border: none;
  border-top: 1px solid rgba(245, 240, 230, 0.15);
  margin: 0 0 32px;
  position: relative;
  z-index: 1;
}

.price-features-title {
  font-family: "Crimson Pro", serif;
  font-style: italic;
  font-size: 13px;
  color: #e6c87a;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
  text-transform: uppercase;
  position: relative;
  z-index: 1;
}

.price-features {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px 32px;
  position: relative;
  z-index: 1;
}
@media (max-width: 768px) {
  .price-features {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}
.price-features li {
  font-size: 14px;
  color: rgba(245, 240, 230, 0.9);
  display: flex;
  align-items: baseline;
  gap: 12px;
  line-height: 1.6;
}
.price-features li::before {
  content: "✓";
  color: #e6c87a;
  font-weight: 600;
  flex-shrink: 0;
}

.price-renewal {
  margin-top: 32px;
  padding: 32px 40px;
  background: #ede5d3;
  border: 1px solid rgba(42, 36, 26, 0.12);
  border-radius: 2px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  align-items: start;
}
@media (max-width: 768px) {
  .price-renewal {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 24px;
  }
}
.price-renewal-label {
  font-family: "Crimson Pro", serif;
  font-style: italic;
  font-size: 13px;
  color: #8b5e10;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.6;
  white-space: nowrap;
}
.price-renewal-text {
  font-size: 14px;
  line-height: 1.85;
  color: #5c5240;
}
.price-renewal-text .em {
  color: #2a241a;
  font-weight: 500;
}

.price-cta {
  margin-top: 40px;
  text-align: center;
}
.price-cta a {
  background: #2a241a;
  color: #f5f0e6;
  padding: 18px 48px;
  border-radius: 2px;
  font-size: 14px;
  text-decoration: none;
  transition: all 0.25s;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.price-cta a:hover {
  background: #8b5e10;
  transform: translateY(-1px);
}

.pricing-note {
  margin-top: 32px;
  font-size: 12px;
  color: #8a7e64;
  text-align: center;
  font-style: italic;
}

.faq {
  background: #ede5d3;
}
.faq-list {
  margin-top: 48px;
  border-top: 1px solid rgba(42, 36, 26, 0.12);
}
.faq-item {
  border-bottom: 1px solid rgba(42, 36, 26, 0.12);
  padding: 28px 0;
  cursor: pointer;
}
.faq-item.open .faq-toggle {
  transform: rotate(45deg);
}
.faq-item.open .faq-answer {
  max-height: 300px;
  margin-top: 16px;
}
.faq-question {
  font-family: "Noto Serif JP", serif;
  font-size: 18px;
  font-weight: 500;
  color: #2a241a;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
.faq-q-mark {
  font-family: "Crimson Pro", serif;
  font-style: italic;
  color: #b8841f;
  font-size: 18px;
  margin-right: 12px;
}
.faq-toggle {
  font-family: "Crimson Pro", serif;
  font-size: 22px;
  color: #b8841f;
  flex-shrink: 0;
  transition: transform 0.2s;
}
.faq-answer {
  margin-top: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, margin-top 0.35s ease;
  font-size: 14px;
  line-height: 1.85;
  color: #5c5240;
  padding-left: 38px;
}

.sister {
  padding: 100px 0;
  background: #f5f0e6;
  border-top: 1px solid rgba(42, 36, 26, 0.12);
  border-bottom: 1px solid rgba(42, 36, 26, 0.12);
}
.sister-card {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  align-items: center;
  padding: 48px;
  background: #ede5d3;
  border-radius: 2px;
  position: relative;
}
@media (max-width: 768px) {
  .sister-card {
    grid-template-columns: 1fr;
    padding: 32px;
  }
}
.sister-tag {
  font-family: "Crimson Pro", serif;
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: #1a7a52;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.sister-logo-img {
  height: 56px;
  width: auto;
  display: block;
}
.sister-content h3 {
  font-family: "Noto Serif JP", serif;
  font-size: 26px;
  font-weight: 500;
  margin-bottom: 16px;
  color: #2a241a;
  line-height: 1.5;
}
.sister-content p {
  font-size: 15px;
  line-height: 1.85;
  color: #5c5240;
  margin-bottom: 24px;
}
.sister-link {
  color: #1a7a52;
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid #1a7a52;
  padding-bottom: 2px;
  transition: all 0.2s;
}
.sister-link:hover {
  color: #0e5837;
  border-bottom-width: 2px;
}

.contact {
  background: #2a241a;
  color: #f5f0e6;
}
.contact .section-num {
  color: #e6c87a;
}
.contact .section-title {
  color: #f5f0e6;
}
.contact .section-lead {
  color: rgba(245, 240, 230, 0.8);
}
.contact-form {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  max-width: 800px;
}
@media (max-width: 768px) {
  .contact-form {
    grid-template-columns: 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
}
.form-group.full {
  grid-column: 1/-1;
}
.form-group label {
  font-family: "Crimson Pro", serif;
  font-style: italic;
  font-size: 13px;
  color: #e6c87a;
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}
.form-group label .req {
  color: #f5a4a4;
}
.form-group input, .form-group select, .form-group textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(245, 240, 230, 0.3);
  color: #f5f0e6;
  padding: 12px 0;
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-bottom-color: #e6c87a;
}
.form-group textarea {
  border: 1px solid rgba(245, 240, 230, 0.3);
  padding: 14px;
  border-radius: 2px;
  resize: vertical;
  min-height: 120px;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(245, 240, 230, 0.9);
  font-size: 13px;
}

.form-submit {
  grid-column: 1/-1;
  margin-top: 16px;
}
.form-submit button {
  background: #f5f0e6;
  color: #2a241a;
  border: none;
  padding: 18px 40px;
  border-radius: 2px;
  font-size: 14px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  letter-spacing: 0.04em;
  transition: all 0.25s;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.form-submit button:hover {
  background: #e6c87a;
}

.form-note {
  grid-column: 1/-1;
  font-size: 12px;
  color: rgba(245, 240, 230, 0.6);
  font-style: italic;
  margin-top: 8px;
}

footer {
  background: #2a241a;
  color: rgba(245, 240, 230, 0.6);
  padding: 60px 0 40px;
  border-top: 1px solid rgba(245, 240, 230, 0.1);
}
footer .container {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
}
@media (max-width: 768px) {
  footer .container {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}
footer .brand-block .footer-logo {
  height: 36px;
  width: auto;
  display: block;
  margin-bottom: 16px;
}
footer .brand-block p {
  font-size: 13px;
  line-height: 1.85;
}
footer h5 {
  font-family: "Crimson Pro", serif;
  font-style: italic;
  font-size: 13px;
  color: #e6c87a;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}
footer ul {
  list-style: none;
}
footer ul li {
  margin-bottom: 10px;
  font-size: 13px;
}
footer ul li a {
  color: rgba(245, 240, 230, 0.7);
  text-decoration: none;
  transition: color 0.2s;
}
footer ul li a:hover {
  color: #e6c87a;
}

.footer-bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid rgba(245, 240, 230, 0.1);
  font-size: 12px;
  color: rgba(245, 240, 230, 0.4);
  text-align: center;
  font-family: "Crimson Pro", serif;
  letter-spacing: 0.05em;
}