@charset "UTF-8";
.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; }
a.btn.back.arrow::after { right: auto; left: 20px; width: 10px; height: 10px; border-top: 2px solid #fff; border-right: 2px solid #fff; transform: rotate(225deg); }
a.btn.black { background: #010002; }

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

/* メインビジュアルのコンテナ */
.main-visual { position: relative; width: 100%; /* ここがポイント！動画の縦横比を指定します（16:9の場合） */ aspect-ratio: 16 / 9; /* height: 100vh; は削除します（比率維持の邪魔になるため） */ background-color: #000; overflow: hidden; }

/* 動画の共通設定 */
.video-element { position: absolute; top: 0; left: 0; width: 100%; height: 100%; /* 枠内に縦横比を保って全体を収める */ object-fit: contain; opacity: 0; transition: opacity 0.5s ease; pointer-events: none; }

/* 表示中の動画 */
.video-element.is-visible { opacity: 1; pointer-events: auto; }

/* ボタンのスタイル（配置は維持） */
.control-btn { position: absolute; right: 20px; top: 20px; z-index: 2; padding: 10px 20px; background: rgba(0, 0, 0, 0.5); color: #fff; border: 1px solid #fff; cursor: pointer; transition: all 0.3s; }

.control-btn:hover { background: #fff; color: #000; }