@charset "UTF-8";

/* =========================
   Base
========================= */
:root {
  --white: #ffffff;
  --soft: #f3f3f3;
  --beige: #ebe7df;
  --black: #333333;
  --darkgray: #444444;
  --gray: #666666;
  --navy: #0a1d57;
  --gold: #cfa64c;
  --line: #e9e6df;
  --max: 1280px;
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", sans-serif;
  color: var(--black);
  background: var(--white);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

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

h1, h2, h3, p, ul {
  margin: 0;
}

ul {
  padding: 0;
}

.container {
  width: min(var(--max), calc(100% - 80px));
  margin: 0 auto;
}

.section {
  padding: 48px 0;
}

/* =========================
   PC / SP visibility
========================= */
.pc-only {
  display: block;
}

.sp-only {
  display: none;
}

/* =========================
   Typography Rule
========================= */
.sub {
  margin: 0 0 12px;
  font-size: 12px;
  line-height: 1.4;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
  font-weight: 700;
}

.title {
  margin: 0 0 20px;
  font-family: "Noto Serif JP", serif;
  font-size: 30px;
  line-height: 1.35;
  font-weight: 400;
  color: var(--black);
}

.lead {
  font-size: 18px;
  line-height: 1.8;
  letter-spacing: 0.04em;
  color: var(--black);
}

.text {
  font-size: 15px;
  line-height: 2;
  color: var(--darkgray);
}

.text p + p {
  margin-top: 16px;
}

.section-heading {
  margin-bottom: 32px;
}

/* =========================
   Header
========================= */
.site-header {
  background: var(--white);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  position: relative;
  z-index: 100;
}

.header-inner {
  height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  position: relative;
}

.logo {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1;
  color: var(--black);
}

/* =========================
   Navigation
========================= */
.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav > a,
.nav-link {
  display: block;
  font-size: 14px;
  color: var(--darkgray);
  transition: opacity 0.25s ease;
}

.nav > a:hover,
.nav-link:hover {
  opacity: 0.7;
}

/* =========================
   Header Toggle
========================= */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px auto;
  background: var(--black);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* =========================
   Header Dropdown
========================= */
.nav-item {
  position: relative;
}

.nav-link {
  display: block;
}

.has-dropdown {
  position: relative;
}

.has-dropdown .dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 190px;
  padding: 6px 0;
  background: var(--white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 14px;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.18s ease, visibility 0.18s ease;
  z-index: 120;
}

.has-dropdown .dropdown-menu a {
  display: block;
  padding: 10px 18px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--darkgray);
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease;
}

.has-dropdown .dropdown-menu a:hover {
  background: #f7f7f7;
  color: var(--black);
}

.has-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* スマホ用商品情報グループ */
.nav-mobile-group {
  display: none;
}

.nav-mobile-label {
  margin: 0;
}

/* =========================
   Hero Common
========================= */
.hero {
  position: relative;
  height: calc(100vh - 84px);
  overflow: hidden;
}

.hero-inner {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 520px;
}

/* =========================
   Buttons
========================= */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn-group.center {
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition:
    transform 0.25s ease,
    background 0.25s ease,
    color 0.25s ease,
    border-color 0.25s ease,
    opacity 0.25s ease;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
  opacity: 0.92;
}

.btn-primary {
  background: var(--navy);
  color: var(--white);
}

/* =========================
   Footer
========================= */
.site-footer {
  background: var(--white);
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 56px 0 40px;
  gap: 60px;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-logo {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
}

.footer-text {
  font-size: 13px;
  line-height: 1.9;
  color: var(--darkgray);
}

.footer-nav {
  display: flex;
  gap: 60px;
}

.footer-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-heading {
  margin-bottom: 4px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: #999999;
}

.footer-group a {
  font-size: 13px;
  line-height: 1.6;
  color: var(--darkgray);
  transition: opacity 0.25s ease;
}

.footer-group a:hover {
  opacity: 0.6;
}

.footer-bottom {
  border-top: 1px solid #eeeeee;
  text-align: center;
  padding: 18px 0;
}

.footer-bottom p {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: #999999;
}

/* =========================
   Section Divider
========================= */
.divider {
  padding: 48px 0;
}

.divider::before {
  content: "";
  display: block;
  width: 100%;
  max-width: var(--max);
  height: 1px;
  margin: 0 auto;
  background: var(--line);
}

/* =========================
   Mobile
========================= */
@media (max-width: 768px) {
  .container {
    width: calc(100% - 32px);
  }

  .section {
    padding: 40px 0;
  }

  .sub {
    margin: 0 0 8px;
    font-size: 11px;
    letter-spacing: 0.16em;
  }

  .title {
    margin: 0 0 16px;
    font-size: 24px;
  }

  .lead {
    font-size: 16px;
    line-height: 1.8;
  }

  .text {
    font-size: 14px;
    line-height: 1.9;
  }

  .text p + p {
    margin-top: 12px;
  }

  .section-heading {
    margin-bottom: 24px;
  }

  .header-inner {
    height: 72px;
  }

  .logo {
    font-size: 26px;
  }

  .nav-toggle {
    display: block;
    z-index: 102;
  }

  .nav {
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--white);
    border-top: 1px solid var(--line);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    z-index: 101;
  }

  .nav.open {
    display: flex;
  }

  .nav > a {
    width: 100%;
    padding: 16px;
    border-bottom: 1px solid #eeeeee;
    font-size: 14px;
  }

  .pc-only {
    display: none !important;
  }

  .sp-only {
    display: block !important;
  }

  .nav-mobile-group {
    display: block;
    width: 100%;
    padding-top: 6px;
    border-bottom: 1px solid #eeeeee;
  }

  .nav-mobile-label {
    padding: 14px 16px 6px;
    font-size: 11px;
    letter-spacing: 0.12em;
    color: #999999;
  }

  .nav-mobile-group a {
    display: block;
    width: 100%;
    padding: 12px 24px;
    font-size: 13px;
    color: var(--darkgray);
  }

  .hero {
    height: auto;
  }

  .hero-inner {
    min-height: calc(100vh - 72px);
    align-items: center;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 28px;
    padding: 32px 0 24px;
  }

  .footer-left {
    gap: 8px;
  }

  .footer-logo {
    font-size: 24px;
  }

  .footer-text {
    font-size: 12px;
    line-height: 1.8;
  }

  .footer-nav {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px 16px;
  }

  .footer-group {
    gap: 10px;
  }

  .footer-heading {
    margin: 0 0 4px;
    font-size: 11px;
    letter-spacing: 0.12em;
  }

  .footer-group a {
    font-size: 12px;
    line-height: 1.6;
  }

  .footer-bottom {
    padding: 14px 0;
  }

  .footer-bottom p {
    font-size: 11px;
    line-height: 1.6;
  }
}