:root {
  --navy: #02152e;
  --navy-deep: #001126;
  --gold: #c79531;
  --white: #f8f7f1;
  --serif: "Noto Serif JP", "Hiragino Mincho ProN", YuMincho, serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--navy); color: var(--white); font-family: var(--serif); }
a { color: inherit; text-decoration: none; }

.site-footer {
  padding: 30px 20px 24px;
  background: var(--navy-deep);
  color: #fff;
  text-align: center;
}
.site-footer nav { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px 20px; }
.site-footer a { color: #fff; font-size: 12px; letter-spacing: .05em; text-decoration: none; }
.site-footer a:hover { color: #d8c79c; }
.site-footer p { margin: 18px 0 0; }

.site-header { height: 92px; padding: 0 4.8vw; display: flex; align-items: center; gap: 48px; background: var(--navy-deep); position: relative; z-index: 2; }
.brand { width: 96px; flex: 0 0 auto; display: block; }
.brand img { display: block; width: 100%; height: auto; mix-blend-mode: screen; }
.desktop-nav { display: flex; align-items: center; justify-content: center; gap: clamp(22px, 3vw, 48px); flex: 1; font-size: 15px; letter-spacing: .12em; white-space: nowrap; }
.desktop-nav a { transition: opacity .2s ease; }
.desktop-nav a:hover { opacity: .65; }
.header-actions { display: flex; align-items: center; gap: 22px; }
.action-item { display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 10px; letter-spacing: .08em; position: relative; }
.action-icon { font-family: Arial, sans-serif; font-size: 25px; line-height: 24px; }
.cart b { position: absolute; top: -4px; right: -7px; background: #e60012; width: 16px; height: 16px; border-radius: 50%; font: 11px Arial, sans-serif; text-align: center; line-height: 16px; }
.menu-button { display: none; background: none; border: 0; width: 26px; padding: 4px 0; }
.menu-button span { display: block; height: 1px; background: var(--white); margin: 5px 0; }

.hero { min-height: 408px; display: grid; grid-template-columns: minmax(370px, .86fr) minmax(500px, 1.14fr); overflow: hidden; background: radial-gradient(circle at 70% 40%, #0a2b4f 0%, var(--navy) 48%, #011227 100%); }
.hero-copy { padding: 56px 0 54px 8.5vw; position: relative; z-index: 1; }
.eyebrow { margin: 0 0 22px; font-size: 14px; letter-spacing: .2em; color: #d8c79c; }
h1 { margin: 0 0 24px; font-size: clamp(33px, 3.2vw, 55px); line-height: 1.46; font-weight: 500; letter-spacing: .08em; }
.hero-description { margin: 0 0 28px; font-size: 15px; line-height: 2.05; letter-spacing: .08em; }
.primary-button { display: inline-flex; align-items: center; justify-content: space-between; min-width: 178px; padding: 13px 22px 13px 28px; border-radius: 3px; background: var(--gold); color: #fff; font-size: 14px; font-weight: 600; letter-spacing: .08em; box-shadow: 0 4px 10px rgba(0,0,0,.18); }
.primary-button span { font: 24px Arial, sans-serif; line-height: 14px; }
.hero-visual { min-height: 408px; position: relative; display: flex; align-items: center; justify-content: center; }
.visual-glow { position: absolute; inset: 0; background: radial-gradient(ellipse at 58% 50%, rgba(11, 47, 76, .8), transparent 65%); }
.hero-visual img { width: min(720px, 111%); position: relative; z-index: 1; filter: drop-shadow(0 18px 16px rgba(0,0,0,.35)); }
.direct-badge { position: absolute; z-index: 2; bottom: 35px; left: 12%; display: flex; align-items: center; gap: 10px; padding: 9px 19px 9px 12px; background: var(--gold); color: #fff; font-size: 13px; line-height: 1.25; letter-spacing: .12em; clip-path: polygon(9% 0,100% 0,88% 100%,0 100%); }
.badge-mark { font-size: 29px; line-height: 1; }
.trust-strip { min-height: 105px; padding: 16px 7vw; display: grid; grid-template-columns: repeat(4, 1fr); background: var(--navy-deep); }
.trust-item { display: flex; align-items: center; justify-content: center; gap: 16px; min-height: 70px; border-right: 1px solid rgba(255,255,255,.25); }
.trust-item:last-child { border-right: 0; }
.trust-icon { width: 40px; text-align: center; font: 37px/1 Arial, sans-serif; color: #fff; }
.trust-item p { margin: 0; font-size: 12px; line-height: 1.65; letter-spacing: .06em; }
.trust-item strong { font-size: 13px; font-weight: 500; }

@media (max-width: 900px) {
  .site-header { height: 64px; padding: 0 18px; gap: 0; justify-content: space-between; }
  .brand { width: 70px; }
  .desktop-nav { display: none; }
  .header-actions { gap: 15px; }
  .menu-button { display: block; }
  .hero { display: block; min-height: 0; }
  .hero-copy { padding: 36px 24px 26px; text-align: left; }
  .eyebrow { margin-bottom: 12px; font-size: 11px; }
  h1 { margin-bottom: 17px; font-size: clamp(29px, 8vw, 42px); line-height: 1.45; }
  .hero-description { margin-bottom: 20px; font-size: 13px; line-height: 1.9; }
  .primary-button { min-width: 164px; padding: 11px 18px 11px 22px; font-size: 13px; }
  .hero-visual { min-height: 250px; margin-top: -4px; }
  .hero-visual img { width: 116%; max-width: 600px; }
  .direct-badge { bottom: 18px; left: 9%; padding: 7px 13px 7px 9px; font-size: 10px; }
  .badge-mark { font-size: 22px; }
  .trust-strip { min-height: 0; padding: 10px 10px 12px; grid-template-columns: repeat(2, 1fr); gap: 0; }
  .trust-item { justify-content: flex-start; gap: 8px; min-height: 66px; padding: 7px 6px; border-right: 1px solid rgba(255,255,255,.2); }
  .trust-item:nth-child(2) { border-right: 0; }
  .trust-item:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.2); }
  .trust-icon { width: 29px; font-size: 27px; }
  .trust-item p, .trust-item strong { font-size: 10px; }
}

/* Announcement and product section from the supplied site draft. */
.announcement { width: min(92%, 1180px); min-height: 52px; margin: 16px auto 0; padding: 0 18px; display: flex; align-items: center; gap: 30px; border: 1px solid #e2e2e2; color: #1d2430; background: #fff; font-family: var(--serif); }
.announcement-label { font-weight: 600; letter-spacing: .08em; }
.announcement time, .announcement p, .announcement a { font-size: 13px; letter-spacing: .05em; }
.announcement p { margin: 0; }
.announcement a { margin-left: auto; color: #283346; white-space: nowrap; }
.announcement a span, .all-products-button span { margin-left: 10px; font: 20px/1 Arial, sans-serif; color: var(--gold); }
.products-section { padding: 24px max(3vw, 28px) 38px; background: #fff; color: #161e2a; }
.section-heading { display: flex; align-items: center; justify-content: center; gap: 18px; margin: 0 auto 22px; }
.section-heading span { width: 42px; height: 1px; background: #c79531; }
.section-heading h2 { margin: 0; font-size: 25px; font-weight: 500; letter-spacing: .15em; }
.product-grid { width: min(100%, 1180px); margin: 0 auto; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.product-card { min-width: 0; }
.product-card-link { display: flex; height: 100%; flex-direction: column; color: inherit; text-decoration: none; }
.product-card-link:focus-visible { outline: 3px solid #c79531; outline-offset: 3px; }
.product-image-wrap { position: relative; aspect-ratio: 1.48 / 1; overflow: hidden; background: #211d19; border-radius: 2px; }
.product-image-wrap img { width: 100%; height: 100%; display: block; object-fit: cover; }
.rank-badge { position: absolute; top: 0; left: 0; min-width: 58px; padding: 8px 8px 7px; background: #b38a2c; color: #fff; text-align: center; font-size: 12px; line-height: 1.05; letter-spacing: .05em; }
.rank-badge b { font-size: 16px; font-weight: 500; }
.rank-badge.special { padding: 11px 13px; background: #c19a3e; font-size: 14px; }
.product-card h3 { margin: 10px 0 5px; min-height: 2.8em; font-size: 15px; line-height: 1.45; font-weight: 600; letter-spacing: .04em; }
.product-description { min-height: 3.5em; margin: 0 0 9px; font-size: 12px; line-height: 1.55; letter-spacing: .03em; }
.product-tags { min-height: 24px; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: start; gap: 4px; font-size: 10px; }
.product-tags span, .product-tags em { min-width: 0; padding: 3px 5px; border: 1px solid #d8dce1; font-style: normal; white-space: nowrap; }
.product-tags span:nth-child(2) { white-space: normal; overflow-wrap: anywhere; }
.product-tags em { border-color: #8ea8d8; color: #365b9d; }
.price { margin: auto 0 8px; color: #bc231e; font: 700 22px/1 Arial, sans-serif; letter-spacing: .02em; }
.price small { margin-left: 5px; color: #333; font: 11px var(--serif); }
.cart-button { display: flex; align-items: center; justify-content: center; gap: 20px; min-height: 34px; padding: 8px 12px; background: var(--navy); color: #fff; border-radius: 3px; font-size: 13px; letter-spacing: .08em; }
.cart-button span { font-family: Arial, sans-serif; font-size: 15px; }
.all-products-button { display: flex; width: 196px; justify-content: center; align-items: center; margin: 26px auto 0; padding: 10px 14px; border: 1px solid #c79531; border-radius: 3px; color: #9a731e; font-size: 13px; letter-spacing: .08em; }
.image-note { min-height: 0; margin: 10px 0 0; text-align: center; }

@media (max-width: 900px) {
  .announcement { width: calc(100% - 24px); margin-top: 12px; padding: 11px 12px; gap: 10px; flex-wrap: wrap; }
  .announcement-label, .announcement time, .announcement p, .announcement a { font-size: 11px; }
  .announcement p { flex: 1 1 100%; order: 3; padding-left: 0; }
  .announcement a { margin-left: auto; }
  .products-section { padding: 22px 12px 30px; }
  .section-heading { margin-bottom: 16px; }
  .section-heading h2 { font-size: 21px; }
  .section-heading span { width: 25px; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 12px; }
  .product-card h3 { font-size: 13px; }
  .product-description { font-size: 11px; }
  .price { font-size: 19px; }
  .cart-button { gap: 8px; font-size: 11px; }
}

@media (max-width: 520px) {
  .product-grid { grid-template-columns: 1fr; gap: 28px; }
  .product-image-wrap { aspect-ratio: 1.55 / 1; }
  .product-card h3, .product-description { min-height: 0; }
  .cart-button { max-width: 100%; }
}

.about-section { display: grid; grid-template-columns: 1fr 1.08fr; min-height: 250px; background: #f2f3f3; color: #142238; }
.about-image { min-height: 250px; overflow: hidden; }
.about-image img { display: block; width: 100%; height: 100%; object-fit: cover; }
.about-copy { display: flex; flex-direction: column; justify-content: center; padding: 32px clamp(28px, 5vw, 80px); }
.about-copy h2 { margin: 0 0 12px; font-size: 23px; font-weight: 500; letter-spacing: .12em; }
.about-copy p { margin: 0 0 10px; font-size: 13px; line-height: 1.8; letter-spacing: .06em; }
.navy-button { display: inline-flex; align-items: center; justify-content: space-between; width: 110px; margin-top: 8px; padding: 9px 13px; background: var(--navy); color: #fff; border-radius: 2px; font-size: 12px; letter-spacing: .08em; }
.navy-button span { font: 18px/1 Arial, sans-serif; }
.howto-section { padding: 24px max(3vw, 28px) 38px; background: #fff; color: #161e2a; }
.howto-grid { width: min(100%, 1180px); margin: 0 auto; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.howto-card { position: relative; display: block; aspect-ratio: 1.95 / 1; overflow: hidden; border-radius: 3px; background: #241d18; }
.howto-card img { display: block; width: 100%; height: 100%; object-fit: cover; }
.howto-card::after { content: ""; position: absolute; inset: 42% 0 0; background: linear-gradient(transparent, rgba(0,0,0,.7)); }
.howto-card span { position: absolute; z-index: 1; bottom: 9px; left: 0; width: 100%; color: #fff; text-align: center; font-size: 14px; letter-spacing: .15em; text-shadow: 0 1px 3px #000; }
.howto-more { margin-top: 22px; }

@media (max-width: 900px) {
  .about-section { grid-template-columns: 1fr; }
  .about-image { min-height: 220px; }
  .about-copy { padding: 24px 22px 28px; }
  .about-copy h2 { font-size: 21px; }
  .howto-section { padding: 22px 12px 30px; }
  .howto-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .howto-card { aspect-ratio: 1.7 / 1; }
  .howto-card span { font-size: 12px; bottom: 7px; }
}

@media (max-width: 520px) {
  .howto-grid { grid-template-columns: 1fr; gap: 14px; }
  .howto-card { aspect-ratio: 1.9 / 1; }
}

/* Keep shared header actions available and make the mobile navigation operable. */
@media (max-width: 900px) {
  .site-header { z-index: 100; padding-inline: 16px; }
  .site-header .desktop-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    z-index: 1;
    display: none;
    flex: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px 12px;
    background: var(--navy-deep);
    box-shadow: 0 10px 18px rgba(0, 0, 0, .24);
    font-size: 14px;
    letter-spacing: .08em;
    white-space: normal;
  }
  .site-header .desktop-nav.is-open { display: flex; }
  .site-header .desktop-nav a {
    display: flex;
    min-height: 48px;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, .14);
  }
  .site-header .header-actions { gap: 8px; }
  .site-header .header-actions::before { content: none; }
  .site-header .header-actions > .action-item.cart {
    display: flex;
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    padding: 2px 4px;
    font-size: 9px;
  }
  .site-header .action-item.cart .action-icon { font-size: 23px; }
  .site-header .menu-button {
    display: flex;
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0;
    border-radius: 3px;
    cursor: pointer;
  }
  .site-header .menu-button span {
    width: 24px;
    height: 1px;
    margin: 3px 0;
    transition: transform .18s ease, opacity .18s ease;
  }
  .site-header .menu-button[aria-expanded="true"] span:first-child { transform: translateY(7px) rotate(45deg); }
  .site-header .menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .site-header .menu-button[aria-expanded="true"] span:last-child { transform: translateY(-7px) rotate(-45deg); }
  .site-header .menu-button:focus-visible,
  .site-header .header-actions > .action-item.cart:focus-visible,
  .site-header .desktop-nav a:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 3px;
  }
}

@media (max-width: 350px) {
  .site-header { padding-inline: 12px; }
  .site-header .brand { width: 64px; }
}