:root {
  --black: #111111;
  --black-soft: #1f1f1f;
  --cream: #faf7f4;
  --rose: #c9a0a0;
  --rose-light: #f1dede;
  --gray-text: #6b6560;
  --serif: "Noto Serif JP", serif;
  --sans: "Zen Kaku Gothic New", sans-serif;
}

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

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

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

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

.sp-only { display: none; }

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

.btn {
  display: inline-block;
  padding: 16px 32px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: opacity .2s, transform .2s;
}
.btn:hover { opacity: 0.85; transform: translateY(-1px); }
.btn-primary { background: var(--black); color: #fff; }
.btn-outline { border: 1px solid var(--black); color: var(--black); }

.eyebrow {
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 0.25em;
  color: var(--rose);
  margin-bottom: 12px;
}
.eyebrow--light { color: var(--rose-light); }

.sec-title {
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 500;
  margin-bottom: 48px;
  letter-spacing: 0.02em;
}
.sec-title--light { color: #fff; }

/* header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250,247,244,0.9);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.logo {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.gnav { display: flex; gap: 32px; font-size: 14px; }
.header-cta {
  font-size: 13px;
  border: 1px solid var(--black);
  padding: 10px 20px;
  border-radius: 999px;
}

/* hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 64px;
  background: linear-gradient(180deg, #fdfbf9 0%, var(--cream) 100%);
}
.hero-inner { position: relative; z-index: 2; max-width: 620px; }
.hero-badge {
  font-size: 12px; letter-spacing: 0.2em; color: var(--rose);
  border: 1px solid var(--rose); display: inline-block;
  padding: 6px 14px; border-radius: 999px; margin-bottom: 24px;
}
.hero-title {
  font-family: var(--serif);
  font-size: 48px;
  line-height: 1.4;
  font-weight: 700;
  margin-bottom: 24px;
}
.hero-lead { font-size: 16px; color: var(--gray-text); margin-bottom: 36px; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual {
  position: absolute;
  right: -20px; top: 60px;
  width: 400px;
}
.hero-photo-card {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 24px 48px rgba(0,0,0,0.18);
  transform: rotate(3deg);
}
.hero-photo-card img { width: 100%; height: 340px; object-fit: cover; }
.hero-photo-tag {
  position: absolute; left: 16px; bottom: 16px;
  background: rgba(17,17,17,0.75);
  color: #fff;
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 6px 12px;
  border-radius: 999px;
}
.bra-illust {
  width: 46%;
  position: absolute;
  right: -30px; bottom: -60px;
  opacity: 0.9;
  filter: drop-shadow(0 12px 20px rgba(0,0,0,0.15));
}

/* marquee */
.marquee {
  background: var(--black);
  color: #fff;
  padding: 14px 0;
  overflow: hidden;
  white-space: nowrap;
}
.marquee-track {
  display: inline-block;
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 0.15em;
  animation: scroll 22s linear infinite;
}
@keyframes scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* trouble */
.trouble { padding: 96px 0; text-align: center; }
.trouble .sec-title { }
.trouble-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  text-align: left;
}
.trouble-card {
  background: #fff;
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.04);
}
.t-icon { font-size: 30px; margin-bottom: 16px; }
.trouble-card h3 { font-size: 17px; margin-bottom: 10px; }
.trouble-card p { font-size: 14px; color: var(--gray-text); }

/* feature */
.feature { padding: 40px 0 96px; }
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 56px 0;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.feature-row--rev { direction: rtl; }
.feature-row--rev > * { direction: ltr; }
.feature-num {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--rose);
  letter-spacing: 0.1em;
}
.feature-text h3 { font-size: 24px; margin: 12px 0 16px; font-family: var(--serif); }
.feature-text p { color: var(--gray-text); font-size: 15px; }

.feature-chart, .feature-stretch, .feature-black {
  background: #fff;
  border-radius: 20px;
  padding: 32px;
}
.feature-photo {
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 20px;
  height: 140px;
}
.feature-photo img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(0.3) brightness(0.92);
}
.chart-label { font-size: 13px; color: var(--gray-text); margin-bottom: 20px; }
.bar-chart { display: flex; flex-direction: column; gap: 20px; }
.bar-row { display: flex; align-items: center; gap: 12px; }
.bar-name { width: 64px; font-size: 13px; flex-shrink: 0; }
.bar-track { flex: 1; background: #eee; border-radius: 999px; height: 28px; overflow: hidden; }
.bar-fill {
  height: 100%; border-radius: 999px;
  display: flex; align-items: center; justify-content: flex-end;
  padding-right: 10px; color: #fff; font-size: 12px;
}
.bar-fill--gray { background: #b3aca7; }
.bar-fill--accent { background: var(--black); }
.chart-note { font-size: 12px; color: #a39c96; margin-top: 16px; }

.stretch-graphic {
  position: relative;
  height: 60px;
  background: linear-gradient(90deg, var(--rose-light), var(--rose));
  border-radius: 999px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px;
}
.stretch-line { position: absolute; inset: 0; }
.stretch-min, .stretch-max { font-family: var(--serif); font-size: 14px; color: #fff; z-index: 1; }

.thread-inset {
  display: flex; align-items: center; gap: 14px;
  margin-top: 20px;
}
.thread-inset img {
  width: 56px; height: 56px; object-fit: cover; border-radius: 50%;
  border: 2px solid var(--rose-light);
}
.thread-inset span { font-size: 12.5px; color: var(--gray-text); }

.black-swatch {
  position: relative;
  width: 100%; height: 130px;
  border-radius: 14px;
  margin-bottom: 16px;
  overflow: hidden;
  background: var(--black);
}
.black-swatch::before {
  content: "";
  position: absolute; inset: 0;
  background-image: url("../images/mesh-fabric-texture.jpg");
  background-size: cover;
  background-position: center;
  filter: grayscale(1) brightness(0.3) contrast(1.3);
}
.black-swatch span {
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: center;
  height: 100%;
  color: #fff; font-family: var(--serif);
  font-size: 15px; letter-spacing: 0.2em;
}

/* product */
.product { padding: 96px 0; }
.product-card {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 48px;
  background: #fff;
  border-radius: 24px;
  padding: 48px;
  align-items: center;
}
.product-visual {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 1 / 1;
}
.product-photo {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  filter: brightness(0.55);
}
.product-illust {
  position: relative; z-index: 1;
  width: 100%; height: 100%;
}
.product-tag { font-size: 12px; letter-spacing: 0.15em; color: var(--rose); margin-bottom: 8px; }
.product-info h3 { font-family: var(--serif); font-size: 26px; margin-bottom: 16px; }
.product-desc { color: var(--gray-text); font-size: 14.5px; margin-bottom: 20px; }
.product-points { list-style: none; margin-bottom: 20px; }
.product-points li {
  font-size: 14px; padding-left: 22px; position: relative; margin-bottom: 8px;
}
.product-points li::before {
  content: "—"; position: absolute; left: 0; color: var(--rose);
}
.product-price-note { font-size: 12.5px; color: #a39c96; }

/* story */
.story {
  position: relative;
  background: var(--black); color: #fff;
  padding: 130px 0;
  text-align: center;
  overflow: hidden;
}
.story-bg {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  opacity: 0.35;
  filter: grayscale(0.4);
}
.story::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(17,17,17,0.4), rgba(17,17,17,0.92));
}
.story-inner { position: relative; z-index: 1; max-width: 640px; margin: 0 auto; }
.story-text { font-size: 15.5px; color: #d8d3ce; }

/* faq */
.faq { padding: 96px 0; }
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item {
  background: #fff; border-radius: 14px; padding: 20px 24px; margin-bottom: 12px;
}
.faq-item summary { cursor: pointer; font-weight: 500; font-size: 15px; }
.faq-item p { margin-top: 12px; font-size: 14px; color: var(--gray-text); }

/* cta */
.cta {
  background: linear-gradient(135deg, var(--rose-light), var(--cream));
  padding: 96px 0;
  text-align: center;
}
.cta-inner h2 { font-family: var(--serif); font-size: 28px; margin-bottom: 12px; }
.cta-inner p { color: var(--gray-text); margin-bottom: 32px; }
.cta-form { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.cta-form input {
  padding: 14px 20px; border-radius: 999px; border: 1px solid #ccc;
  width: 300px; max-width: 100%; font-size: 14px;
}

/* footer */
.site-footer { background: var(--black); color: #999; padding: 32px 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.logo--footer { color: #fff; font-size: 16px; }
.footer-inner p { font-size: 12px; }

/* responsive */
@media (max-width: 860px) {
  .sp-only { display: inline; }
  .gnav { display: none; }
  .hero-visual { display: none; }
  .hero-title { font-size: 34px; }
  .trouble-grid { grid-template-columns: 1fr; }
  .feature-row, .feature-row--rev { grid-template-columns: 1fr; direction: ltr; }
  .product-card { grid-template-columns: 1fr; padding: 32px 24px; }
  .sec-title { font-size: 26px; }
}