/* 说明页延续游戏的深蓝、奶白与桃色；样式只作用于新增区域，避免覆盖棋盘。 */
.site-nav,.site-footer,.info-page{font-family:Arial,Helvetica,sans-serif;color:#fff1de;line-height:1.65}
.site-nav{display:flex;justify-content:center;flex-wrap:wrap;gap:4px 24px;padding:8px 20px;margin:0 auto 20px;max-width:1120px}
.site-nav a,.site-footer a{color:#e0e7f4;text-decoration:none;display:inline-block;padding:8px 0;font-size:14px}
.site-nav a:hover,.site-footer a:hover{color:#ffbc94;text-decoration:underline;text-underline-offset:5px}
.site-nav a[aria-current="page"]{color:#ffbc94;text-decoration:underline;text-underline-offset:6px}
.site-footer{position:relative;inset:auto;width:auto;display:block;text-align:center;background:#0b1429;border-top:1px solid #35415b;padding:30px 24px!important;margin:40px 0 0!important}
.site-footer .site-brand,.info-header .site-brand{color:#fff1de;font-size:15px;font-weight:700;letter-spacing:.12em;text-decoration:none}
.site-footer p{font-size:14px;letter-spacing:0;color:#bbc9de;margin:8px 0 12px}
.site-footer nav{display:flex;justify-content:center;flex-wrap:wrap;gap:0 24px}
.site-footer small{display:block;margin-top:18px;color:#bbc9de;font-size:12px}
/* 首页只保留开始探索入口；说明导航放在页脚，不占用封面和棋盘空间。 */
.home-page>.site-footer{margin-top:0!important}
.info-page{margin:0;background:#0b1429;min-width:280px}
.info-page *{box-sizing:border-box}
.info-header{max-width:1040px;margin:auto;padding:28px 24px 10px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.info-header button{font:inherit;font-size:14px;color:#fff1de;background:#17243c;border:1px solid #62718a;border-radius:12px;min-height:44px;padding:8px 16px;cursor:pointer}
.info-content{max-width:760px;margin:auto;padding:38px 28px 48px}
.info-content h1{font-size:clamp(32px,6vw,50px);line-height:1.14;letter-spacing:-.025em;font-weight:600;margin:0 0 20px;color:#fff1de;text-wrap:balance}
.info-content .info-lead{font-size:20px;line-height:1.55;color:#ffbc94;margin:0 0 48px}
.info-content section{margin:32px 0}
.info-content h2{font-size:21px;line-height:1.4;margin:0 0 12px;color:#fff1de}
.info-content p{font-size:16px;line-height:1.85;margin:0;color:#c9d5e7;overflow-wrap:anywhere}
.info-content a{color:#ffbc94;text-underline-offset:5px}
.info-content .info-play{display:inline-block;margin-top:24px;background:#ffbc94;color:#302132;padding:12px 22px;border-radius:12px;text-decoration:none;font-weight:600}
.info-content [hidden]{display:none!important}
.site-skip{position:absolute;left:16px;top:-100px;background:#ffbc94;color:#302132;padding:12px;z-index:10000}
.site-skip:focus{top:8px}
.site-nav a:focus-visible,.site-footer a:focus-visible,.info-page a:focus-visible,.info-page button:focus-visible{outline:3px solid #ffbc94;outline-offset:4px}
.info-page ::selection,.site-footer ::selection{background:#ffbc94;color:#0b1429}
.info-page{scrollbar-color:#62718a #0b1429}
@media(max-width:600px){.site-nav{gap:0 16px;padding:4px 16px}.site-nav a{font-size:13px;min-height:40px}.info-header{padding:20px 20px 8px}.info-content{padding:28px 22px 36px}.info-content .info-lead{font-size:18px;margin-bottom:36px}.site-footer nav{gap:0 18px}}