:root {
  --navy: #031426;
  --navy2: #061d33;
  --navy3: #092842;
  --gold: #d8a54d;
  --gold2: #f0c978;
  --white: #f8f8f2;
  --muted: rgba(255,255,255,.78);
  --line: rgba(216,165,77,.45);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #020913;
  color: var(--white);
  font-family: "Times New Roman", "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  letter-spacing: .12em;
}
img { display: block; width: 100%; }

.lp {
  width: min(100%, 664px);
  margin: 0 auto;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 85% 8%, rgba(52,89,118,.35), transparent 28%),
    radial-gradient(circle at 10% 55%, rgba(13,61,94,.52), transparent 30%),
    linear-gradient(180deg, #031120 0%, #061c32 48%, #031426 100%);
  box-shadow: 0 0 45px rgba(0,0,0,.55);
}
.lp::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.015) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: .45;
}
.section-block { position: relative; z-index: 1; }

.hero {
  min-height: 610px;
  padding: 64px 36px 42px;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(3,14,26,.94) 0%, rgba(4,20,36,.75) 48%, rgba(3,14,26,.12) 100%);
  z-index: -1;
}
.hero-bg-left {
  position: absolute;
  inset: 0 auto auto 0;
  width: 54%;
  height: 300px;
  background: linear-gradient(rgba(0,20,38,.2), rgba(3,14,26,.75)), url('../img/lattice.jpeg') center/cover;
  opacity: .65;
  z-index: -2;
}
.hero-model {
  position: absolute;
  right: -86px;
  top: 0;
  width: 450px;
  height: 610px;
  object-fit: cover;
  object-position: 62% 24%;
  opacity: .9;
  z-index: -2;
}
.eyebrow {
  margin: 0 0 26px;
  font-size: 21px;
  letter-spacing: .56em;
}
.limit-box {
  display: inline-grid;
  gap: 2px;
  padding: 0 0 22px;
  margin-bottom: 34px;
  border-bottom: 1px solid var(--gold);
  color: var(--gold2);
  line-height: 1.15;
}
.date { font-size: 70px; letter-spacing: .08em; }
.small { font-size: 28px; color: var(--white); margin-left: 12px; }
.limit { font-size: 42px; letter-spacing: .18em; }
.place { margin: 0 0 26px; font-size: 20px; color: var(--white); }
h1 { margin: 0; font-size: 56px; font-weight: 400; letter-spacing: .18em; line-height: 1.16; }
.sub-title { margin: 12px 0 34px; color: var(--gold2); font-size: 30px; }
.lead { margin: 0; color: var(--muted); font-size: 20px; line-height: 2.1; letter-spacing: .14em; }

.learn {
  min-height: 520px;
  padding: 48px 36px 54px;
  border-top: 1px solid rgba(255,255,255,.08);
  overflow: hidden;
}
.learn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(3,18,33,.96) 0%, rgba(3,18,33,.88) 54%, rgba(3,18,33,.34) 100%);
  z-index: -1;
}
.learn-photo {
  position: absolute;
  right: -110px;
  top: 0;
  width: 420px;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: .82;
  z-index: -2;
}
.learn h2 {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 28px;
  color: var(--gold2);
  font-size: 28px;
  font-weight: 400;
}
.learn h2 span { display: block; width: 58px; height: 1px; background: var(--gold); }
.point-list { list-style: none; padding: 0; margin: 0; max-width: 390px; }
.point-list li {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-size: 25px;
  line-height: 1.45;
}
.icon, .benefit-icon {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid var(--gold);
  border-radius: 50%;
  color: var(--gold);
}
.icon { width: 58px; height: 58px; }
.icon svg, .benefit-icon svg { width: 35px; height: 35px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(216,165,77,.25);
  border-bottom: 1px solid rgba(216,165,77,.25);
}
.gallery img {
  height: 142px;
  object-fit: cover;
  border-right: 1px solid rgba(255,255,255,.18);
  border-bottom: 1px solid rgba(255,255,255,.18);
  filter: brightness(.82) saturate(.9);
}
.gallery img:nth-child(1) { object-position: center; }
.gallery img:nth-child(2) { object-position: 48% 45%; }
.gallery img:nth-child(3) { object-position: center; }
.gallery img:nth-child(4) { object-position: 55% 50%; }
.gallery img:nth-child(5) { grid-column: span 2; height: 172px; object-position: 43% 48%; }
.gallery img:nth-child(6) { height: 172px; object-position: 45% 52%; }
.gallery img:nth-child(7) { height: 172px; object-position: 50% 47%; }

.benefits {
  padding: 50px 52px 34px;
  background: linear-gradient(180deg, rgba(6,31,53,.88), rgba(3,17,31,.92));
}
.benefit-card {
  display: flex;
  align-items: center;
  gap: 30px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.benefit-card:first-child { border-top: 1px solid var(--line); }
.benefit-icon { width: 70px; height: 70px; }
.benefit-card p { margin: 0; font-size: 31px; line-height: 1.5; }
.benefit-card strong { color: var(--gold2); font-size: 48px; font-weight: 400; letter-spacing: .04em; }

.cta {
  padding: 8px 36px 46px;
  text-align: center;
  background: linear-gradient(180deg, rgba(3,17,31,.92), #020b16 100%);
}
.line-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  min-height: 86px;
  border: 1px solid var(--gold2);
  color: var(--white);
  text-decoration: none;
  background: rgba(6,27,47,.72);
  box-shadow: inset 0 0 28px rgba(44, 120, 168, .08), 0 14px 34px rgba(0,0,0,.28);
  font-size: 28px;
  letter-spacing: .12em;
  transition: transform .28s ease, background .28s ease, border-color .28s ease;
}
.line-button:hover { transform: translateY(-2px); background: rgba(9,39,67,.92); border-color: #fff0b8; }
.line-mark {
  width: 60px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50% 50% 50% 12%;
  background: var(--white);
  color: #082037;
  font-family: Arial, sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
}
.arrow { margin-left: 8px; font-size: 42px; color: var(--gold2); line-height: 1; }
.cta p { margin: 28px 0 22px; font-size: 18px; color: var(--white); letter-spacing: .16em; }
.cta p span { color: var(--gold2); }
.brand strong {
  display: block;
  font-size: 38px;
  font-weight: 400;
  letter-spacing: .42em;
  padding-left: .42em;
}
.brand small {
  display: block;
  margin-top: 11px;
  font-size: 9px;
  letter-spacing: .55em;
  color: rgba(255,255,255,.72);
}

@media (max-width: 520px) {
  body { background: #031426; }
  .lp { width: 100%; }
  .hero { padding: 52px 24px 38px; min-height: 640px; }
  .hero-model { right: -148px; width: 430px; opacity: .72; }
  .eyebrow { font-size: 15px; letter-spacing: .42em; }
  .date { font-size: 54px; }
  .limit { font-size: 34px; }
  .place { font-size: 15px; }
  h1 { font-size: 42px; }
  .sub-title { font-size: 25px; }
  .lead { font-size: 17px; line-height: 2; }
  .learn { padding: 44px 24px 44px; }
  .learn-photo { right: -185px; opacity: .58; }
  .learn h2 { font-size: 24px; }
  .learn h2 span { width: 34px; }
  .point-list li { font-size: 21px; gap: 16px; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .gallery img { height: 128px; }
  .gallery img:nth-child(5), .gallery img:nth-child(6), .gallery img:nth-child(7) { height: 145px; grid-column: auto; }
  .gallery img:nth-child(7) { grid-column: span 2; }
  .benefits { padding: 40px 28px 26px; }
  .benefit-card { gap: 20px; }
  .benefit-icon { width: 58px; height: 58px; }
  .benefit-card p { font-size: 24px; }
  .benefit-card strong { font-size: 38px; }
  .cta { padding: 8px 22px 36px; }
  .line-button { min-height: 74px; font-size: 21px; gap: 14px; }
  .line-mark { width: 52px; height: 40px; font-size: 12px; }
  .cta p { font-size: 14px; line-height: 1.8; }
  .brand strong { font-size: 30px; }
}