/* =====================
共通設定
===================== */

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

html{
  scroll-behavior:smooth;
}

body{
  font-family:
  "Helvetica Neue",
  Arial,
  sans-serif;
  color:#222;
  background:#fff;
  line-height:1.7;
}

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

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

.container{
  width:90%;
  max-width:1200px;
  margin:0 auto;
}

/* =====================
HEADER
===================== */

.site-header{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  padding:30px 40px;
  z-index:999;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);
}

.header-inner{
  max-width:1400px;
  margin:0 auto;
  display:flex;
  justify-content:space-between;
  align-items:center;
}

.logo{
  margin:0;
  font-size:24px;
  line-height:1;
  letter-spacing:2px;
}

.logo a{
  color:#111;
  text-decoration:none;
}

.nav-menu{
  display:flex;
  gap:30px;
}

.nav-menu a{
  color:#111;
  font-size:14px;
  letter-spacing:2px;
  transition:.3s;
}

.nav-menu a:hover{
  opacity:.6;
}

.menu-toggle{
  display:none;
  background:none;
  border:none;
  font-size:32px;
  color:#111;
  cursor:pointer;
  line-height:1;
}

/* =====================
FOOTER
===================== */

.site-footer{
  background:#111;
  color:#fff;
  padding:80px 20px;
  text-align:center;
}

.footer-inner{
  max-width:1200px;
  margin:0 auto;
}

.footer-logo h3{
  font-size:28px;
  margin-bottom:10px;
  letter-spacing:2px;
}

.footer-logo p{
  font-size:14px;
  opacity:.7;
  margin-bottom:30px;
}

.footer-nav{
  display:flex;
  justify-content:center;
  gap:30px;
  margin-bottom:30px;
  flex-wrap:wrap;
}

.footer-nav a{
  color:#fff;
  transition:.3s;
}

.footer-nav a:hover{
  opacity:.6;
}

.copyright{
  font-size:12px;
  opacity:.6;
  margin-top:30px;
}

/* =====================
FADE UP
===================== */

.fade-up{
  opacity:0;
  transform:translateY(30px);
  transition:
    opacity .8s ease,
    transform .8s ease;
}

.fade-up.show{
  opacity:1;
  transform:translateY(0);
}