:root{--nav-bg:rgba(255,255,255,.95);--nav-border:rgba(148,163,184,.24);--nav-shadow:0 1px 6px rgba(15,23,42,.08);--nav-link-text:#1f2937;--nav-link-hover-bg:rgba(15,23,42,.06);--nav-link-active-bg:rgba(13,110,253,.14);--nav-link-active-text:#0a58ca;--nav-focus-ring:0 0 0 .2rem rgba(13,110,253,.25);--nav-disabled:#9ca3af;--nav-font-family:'Noto Sans JP' , 'BIZ UDPGothic' , 'Hiragino Sans' , sans-serif;--nav-font-size:.95rem;--nav-line-height:1.45;--icon-spotify-color:#1db954;--icon-youtube-color:#dc2626;--icon-twitter-color:#334155;--icon-ranking-color:#f59e0b;--icon-tver-color:#2563eb;--icon-calendar-color:#d97706;--icon-chart-color:#374151;--icon-tools-color:#4b5563;--icon-cyalume-color:#ca8a04;--icon-gamepad-color:#db2777;--icon-info-color:#475569;--icon-mail-color:#475569;--icon-link-color:#475569;--icon-oshireq-color:#9333ea;--icon-billboard-color:#4f46e5;--icon-line-music-color:#16a34a;--icon-profile-color:#0f766e;--icon-formation-color:#7c3aed;--icon-sort-color:#0284c7;--icon-face-match-color:#ea580c;--icon-layout-color:#c026d3;--icon-disc-color:#8b5cf6;--icon-photo-color:#ec4899;--icon-mypage-color:#2563eb}.navbar-nav .nav-link i,.navbar-nav .dropdown-item i{font-size:1.05em;width:1.2em;display:inline-block;text-align:center}.icon-spotify{color:var(--icon-spotify-color)}.icon-youtube{color:var(--icon-youtube-color)}.icon-twitter{color:var(--icon-twitter-color)}.icon-ranking{color:var(--icon-ranking-color)}.icon-tver{color:var(--icon-tver-color)}.icon-calendar{color:var(--icon-calendar-color)}.icon-chart{color:var(--icon-chart-color)}.icon-tools{color:var(--icon-tools-color)}.icon-cyalume{color:var(--icon-cyalume-color)}.icon-gamepad{color:var(--icon-gamepad-color)}.icon-info{color:var(--icon-info-color)}.icon-mail{color:var(--icon-mail-color)}.icon-link{color:var(--icon-link-color)}.icon-oshireq{color:var(--icon-oshireq-color)}.icon-billboard{color:var(--icon-billboard-color)}.icon-line-music{color:var(--icon-line-music-color)}.icon-profile{color:var(--icon-profile-color)}.icon-formation{color:var(--icon-formation-color)}.icon-sort{color:var(--icon-sort-color)}.icon-face-match{color:var(--icon-face-match-color)}.icon-layout{color:var(--icon-layout-color)}.icon-disc{color:var(--icon-disc-color)}.icon-photo{color:var(--icon-photo-color)}.icon-mypage{color:var(--icon-mypage-color)}.navbar{position:sticky;top:0;z-index:1020;border-bottom:1px solid var(--nav-border);box-shadow:var(--nav-shadow);backdrop-filter:blur(14px);background-color:var(--nav-bg);font-family: var(--nav-font-family);font-size:var(--nav-font-size);line-height:var(--nav-line-height)}.navbar .container-fluid{max-width:1320px}.navbar-brand{color:#0f172a;min-height:44px;display:inline-flex;align-items:center;font-weight:600;letter-spacing:.01em;padding:.2rem .25rem;border-radius:.5rem}.navbar-brand:hover{color:#0b1220}.navbar-brand:focus-visible{outline:none;box-shadow:var(--nav-focus-ring)}.navbar-nav .nav-link,.navbar-nav .dropdown-item{min-height:44px;display:inline-flex;align-items:center;gap:.45rem;border-radius:.5rem;color:var(--nav-link-text);font-weight:500}.navbar-nav .nav-link{padding:.45rem .72rem}.navbar-nav .dropdown-item{padding:.45rem .8rem}.navbar-nav .nav-link:hover,.navbar-nav .dropdown-item:hover{color:var(--nav-link-text);background-color:var(--nav-link-hover-bg)}.navbar-nav .nav-link:active,.navbar-nav .dropdown-item:active{color:var(--nav-link-text);background-color:rgba(15,23,42,.1)}.navbar-nav .nav-link.active,.navbar-nav .show>.nav-link{color:var(--nav-link-active-text);background-color:var(--nav-link-active-bg);font-weight:600}.navbar-nav .dropdown-item.active,.navbar-nav .dropdown-item:active{color:var(--nav-link-active-text);background-color:var(--nav-link-active-bg);font-weight:600}.navbar-nav .nav-link.active .icon-youtube,.navbar-nav .dropdown-item.active .icon-youtube{color:#b91c1c}.navbar-nav .nav-link.active .icon-spotify,.navbar-nav .dropdown-item.active .icon-spotify{color:#15803d}.navbar-nav .nav-link.active .icon-twitter,.navbar-nav .dropdown-item.active .icon-twitter{color:#1f2937}.navbar-nav .nav-link.active .icon-tver,.navbar-nav .dropdown-item.active .icon-tver{color:#1d4ed8}.navbar-nav .nav-link:focus-visible,.navbar-nav .dropdown-item:focus-visible,.navbar-toggler:focus-visible{outline:none;box-shadow:var(--nav-focus-ring)}.navbar-nav .nav-link.disabled,.navbar-nav .dropdown-item.disabled{color:var(--nav-disabled);pointer-events:none;background:transparent}.navbar-toggler{margin-right:.35rem;min-width:44px;min-height:44px;padding:.45rem;border-radius:.6rem}.mobile-quick-nav{display:none}.mobile-bottom-quick-nav{display:none}.dropdown-menu{border-color:var(--nav-border);border-radius:.65rem;box-shadow:0 10px 20px rgba(15,23,42,.1);padding:.3rem;max-height:min(68vh,520px);overflow-y:auto}@media (max-width:991.98px){.js-mobile-autohide-nav{will-change:transform;transition:transform .2s ease-in-out}.js-mobile-autohide-nav.navbar--hidden{transform:translateY(-100%)}.navbar-collapse{margin-top:.3rem;padding:.25rem 0;max-height:min(72vh,540px);overflow-y:auto;overflow-x:hidden}.mobile-quick-nav{display:grid;gap:.55rem;padding:.45rem .15rem .8rem;border-bottom:1px solid var(--nav-border);margin-bottom:.35rem}.mobile-quick-nav__label{margin:0;color:#475569;font-size:.78rem;font-weight:700;letter-spacing:.08em}.mobile-quick-nav__links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem}.mobile-quick-nav__link{display:flex;align-items:center;gap:.45rem;min-height:44px;min-width:0;padding:.55rem .65rem;border:1px solid rgba(148,163,184,.28);border-radius:.65rem;background:rgba(248,250,252,.92);color:var(--nav-link-text);font-weight:700;line-height:1.35;text-decoration:none;overflow-wrap:anywhere;transition:background-color .16s ease , border-color .16s ease , box-shadow .16s ease , color .16s ease}.mobile-quick-nav__link i{flex:0 0 auto;width:1.2em;text-align:center}.mobile-quick-nav__link span{min-width:0}.mobile-quick-nav__link:hover{color:var(--nav-link-text);border-color:rgba(59,130,246,.34);background:rgba(239,246,255,.95)}.mobile-quick-nav__link:active,.mobile-quick-nav__link.is-active{color:var(--nav-link-active-text);border-color:rgba(13,110,253,.28);background:var(--nav-link-active-bg)}.mobile-quick-nav__link:focus-visible{outline:none;box-shadow:var(--nav-focus-ring)}.navbar-nav .nav-link,.navbar-nav .dropdown-item{width:100%}.dropdown-menu{border:none;box-shadow:none;border-radius:0;padding:.2rem 0 .4rem;max-height:none;overflow-y:visible}}@media (max-width:767.98px){body{padding-bottom: calc(78px + env(safe-area-inset-bottom, 0px))}.mobile-bottom-quick-nav{position:fixed;right:0;bottom:0;left:0;z-index:1030;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:.2rem;padding: 0.45rem 0.55rem calc(0.45rem + env(safe-area-inset-bottom, 0px));border-top:1px solid var(--nav-border);background:var(--nav-bg);box-shadow:0 -8px 20px rgba(15,23,42,.12);backdrop-filter:blur(14px)}.mobile-bottom-quick-nav__link{display:grid;min-width:0;min-height:52px;align-content:center;justify-items:center;gap:.18rem;padding:.3rem .2rem;border-radius:.75rem;color:var(--nav-link-text);font-size:.68rem;font-weight:700;line-height:1.25;text-align:center;text-decoration:none;transition:background-color .16s ease , color .16s ease , box-shadow .16s ease}.mobile-bottom-quick-nav__link i{font-size:1.05rem;line-height:1}.mobile-bottom-quick-nav__link span{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mobile-bottom-quick-nav__link:hover{color:var(--nav-link-text);background:var(--nav-link-hover-bg)}.mobile-bottom-quick-nav__link:active,.mobile-bottom-quick-nav__link.is-active{color:var(--nav-link-active-text);background:var(--nav-link-active-bg)}.mobile-bottom-quick-nav__link:focus-visible{outline:none;box-shadow:var(--nav-focus-ring)}}@media (max-width:575.98px){.mobile-quick-nav__links{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){.js-mobile-autohide-nav{transition:none}.mobile-quick-nav__link{transition:none}.mobile-bottom-quick-nav__link{transition:none}}