.container { width: 1100px; margin: 0 auto; }
@media (max-width: 1200px) { .container { width: 100%; padding: 0px 20px; } }

.narrow { width: 770px; margin: 0 auto; }
@media (max-width: 770px) { .narrow { width: 100%; padding: 0px 20px; } }

.pc-only { display: block; }
@media screen and (max-width: 768px) { .pc-only { display: none; } }

.sp-only { display: none; }
@media screen and (max-width: 768px) { .sp-only { display: block; } }

article#page { font-family: "Noto Serif JP", serif; }
article#page .ttl { background: #010002; padding: 2.5rem 0; color: #fff; position: relative; margin-top: 5px; }
article#page .ttl h2 { font-family: "Gilda Display", serif; font-size: 2.4rem; line-height: 1.1; letter-spacing: 0.3rem; }
article#page .ttl h2 span { font-family: "Noto Serif JP", serif; display: block; font-size: 1.2rem; letter-spacing: 0rem; }
article#page .ttl::after { content: ''; border: none; height: calc(100% + 10px); width: 100%; display: inline-block; position: absolute; background: linear-gradient(90deg, #797979 0%, #fff 54%, #c2c2c2 83%, #797979 100%); top: -5px; left: 0; bottom: auto; z-index: -1; }
@media screen and (max-width: 559px) { article#page .ttl h2 { font-size: 2rem; }
  article#page .ttl h2 span { font-size: 1rem; } }

.arrow { position: relative; display: inline-block; padding: 0 0 0 16px; vertical-align: middle; text-decoration: none; font-size: 1rem; }
.arrow::after { position: absolute; top: 0; bottom: 0; margin: auto; content: ""; vertical-align: middle; right: 20px; width: 10px; height: 10px; border-top: 2px solid #fff; border-right: 2px solid #fff; -webkit-transform: rotate(45deg); transform: rotate(45deg); }

a.btn { color: #fff; background: #797979; padding: 0.5rem 0; }
a.btn:hover { filter: brightness(1.7); text-decoration: none; transition: 0.3s; }
a.btn.coming { background: #555; color: #ccc; }
a.btn.coming:hover { filter: none; text-decoration: none; }

#access, #limited, #alphapoint, #view, #limited-login, #concept-design, #outline { padding: 6rem 0; }
@media screen and (max-width: 559px) { #access, #limited, #alphapoint, #view, #limited-login, #concept-design, #outline { padding: 4rem 0; } }

#concept-design { color: #797979; }
#concept-design h3 { font-size: 2rem; font-weight: normal; }
#concept-design p { font-size: 1.2rem; margin-top: 2rem; }
#concept-design img.main-visual { width: 100%; margin-top: 4rem; }