:root{--bg-color: #1a1a1a;--text-color: #f0f0f0;--primary-color: #ff69b4;--secondary-color: #333;--panel-bg: #252525;--card-bg: #2d2d2d;--hina-color: #ff85c0;--kai-color: #5cdbd3;font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark}body{margin:0;padding:0;background-color:var(--bg-color);color:var(--text-color);overflow:hidden;width:100vw;height:100vh;display:flex;justify-content:center}#root{width:100%;height:100%;display:flex;flex-direction:column;max-width:1200px}header{padding:.5rem;display:flex;flex-direction:column;gap:.5rem;background:#00000080;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.1);flex-shrink:0}h1{font-size:clamp(1rem,5vw,1.5rem);margin:0;text-align:center;font-weight:800;letter-spacing:.5px;background:linear-gradient(to right,var(--hina-color),var(--kai-color));-webkit-background-clip:text;color:transparent;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.controls{display:flex;flex-direction:row;justify-content:space-between;align-items:stretch;gap:.5rem;background:var(--panel-bg);padding:.5rem;border-radius:8px}.bgm-control-group{display:flex;flex-direction:column;gap:2px;flex:1;justify-content:center;min-width:0}.label-row{display:flex;align-items:center;gap:5px;font-size:.7rem;font-weight:700;color:#aaa}.bgm-credit{margin-left:8px;font-size:.55rem;font-weight:400;color:#888;white-space:normal;word-break:break-all;line-height:1.1}.bgm-buttons{display:flex;gap:.3rem;flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch}.bgm-btn{background:var(--secondary-color);color:#ccc;border:1px solid #444;padding:.2rem .6rem;border-radius:15px;font-size:.75rem;cursor:pointer;white-space:nowrap}.bgm-btn:hover{background:#444}.bgm-btn.active{background:var(--primary-color);color:#000;border-color:var(--primary-color);font-weight:700}.control-right-group{display:flex;align-items:stretch;gap:8px}.vol-control{display:flex;flex-direction:column;align-items:flex-end;justify-content:center;gap:2px;font-size:.7rem;color:#aaa;min-width:60px}.vol-control input[type=range]{width:100%;accent-color:var(--primary-color)}.pro-toggle-btn{background:#444;color:#fff;border:2px solid #555;font-size:1.1rem;font-weight:900;padding:0 1rem;border-radius:8px;cursor:pointer;transition:all .2s;text-shadow:0 2px 0 #000;white-space:nowrap}.pro-toggle-btn:hover{background:#555}.pro-toggle-btn.active{background:var(--primary-color);color:#000;border-color:#fff;box-shadow:0 0 15px var(--primary-color);text-shadow:none}.pro-panel-inline{background:#222;border-bottom:2px solid var(--primary-color);padding:.8rem .8rem 1.2rem;animation:slideDown .3s cubic-bezier(.2,.8,.2,1);display:grid;grid-template-columns:1.2fr 1fr;gap:.5rem;flex-shrink:0}@keyframes slideDown{0%{transform:translateY(-20px);opacity:0;height:0;padding-top:0;padding-bottom:0}}.fx-section{display:flex;flex-direction:column;gap:.5rem}.fx-title{font-size:.7rem;font-weight:700;color:var(--primary-color);border-bottom:1px solid #444;margin-bottom:4px}.fx-types{display:grid;grid-template-columns:1fr 1fr;gap:4px}.fx-types button{background:#333;color:#999;border:1px solid #444;padding:4px;border-radius:4px;font-size:.65rem}.fx-types button.active{background:var(--primary-color);color:#000;font-weight:700;border-color:#fff}.fx-row{display:flex;flex-direction:column}.fx-row label{font-size:.65rem;color:#aaa}.fx-row input{width:100%;accent-color:var(--primary-color);height:4px;background:#111;border-radius:2px}.eq-row{display:flex;justify-content:space-around;height:50px;align-items:flex-end;padding-bottom:2px}.v-slider{display:flex;flex-direction:column;align-items:center;height:100%}.v-slider input{writing-mode:vertical-lr;direction:rtl;appearance:slider-vertical;width:24px;flex:1;background:#111;border-radius:4px;margin-bottom:4px}.v-slider label{font-size:.6rem;color:#777;font-weight:700;white-space:nowrap;line-height:1}.char-tabs{display:flex;width:100%;border-bottom:2px solid #333;flex-shrink:0;height:40px}.tab{flex:1;display:flex;justify-content:center;align-items:center;background:var(--panel-bg);cursor:pointer;font-weight:700;font-size:.9rem;transition:all .3s ease;opacity:.6}.char-icon-frame{width:28px;height:28px;border-radius:50%;margin-right:8px;overflow:hidden;border:2px solid rgba(255,255,255,.2);flex-shrink:0}.char-icon-frame img{width:100%;height:100%;object-fit:cover;display:block}.hina-img{transform:scale(1.8) translateY(5%);transform-origin:center center}.kai-img{transform:scale(1.4) translateY(5%);transform-origin:center center}.tab.active{opacity:1;color:#000;border-bottom:none!important}.tab.hina.active{background:var(--hina-color);box-shadow:0 0 15px var(--hina-color)}.tab.kai.active{background:var(--kai-color);box-shadow:0 0 15px var(--kai-color)}.content-area{flex:1;overflow:hidden;display:flex;flex-direction:column}.board{flex:1;padding:.5rem;display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:minmax(65px,1fr);gap:.5rem;height:100%;overflow-y:auto;transition:all .3s cubic-bezier(.2,.8,.2,1)}@media(max-width:600px){.board.compact{gap:4px;padding:2px;grid-auto-rows:minmax(45px,1fr)}.board.compact .sound-btn{font-size:.7rem}}@media(min-width:400px){.board{grid-template-columns:repeat(4,1fr)}}@media(min-width:600px){.board{grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(80px,1fr);gap:1rem;padding:1rem}.sound-btn{font-size:1.2rem;border-radius:12px}}@media(min-width:1000px){.board{grid-template-columns:repeat(5,1fr)}.sound-btn{font-size:1.5rem}}.sound-btn{background:var(--card-bg);background-image:linear-gradient(to bottom right,var(--theme-bg),transparent);border:1px solid transparent;border-radius:8px;padding:.2rem;font-size:.8rem;font-weight:700;color:#fff;cursor:pointer;transition:all .2s;box-shadow:0 2px 4px #0000004d;display:flex;align-items:center;justify-content:center;-webkit-user-select:none;user-select:none;line-height:1.1}.sound-btn:active,.sound-btn.playing{transform:scale(.95);background:var(--primary-color);color:#000;box-shadow:0 0 20px var(--primary-color);border-color:#fff;z-index:10}.construction{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;color:#888}.construction h2{font-size:2rem;margin-bottom:1rem;color:var(--kai-color)}.loading-overlay{position:fixed;inset:0;background:#000;z-index:9999;display:flex;justify-content:center;align-items:center;color:var(--primary-color)}.loading-content{text-align:center;width:80%;max-width:400px}.loading-image{width:100%;max-width:300px;border-radius:16px;margin-bottom:2rem;box-shadow:0 0 20px #00000080;border:2px solid #333}.loading-content h2{font-size:1.5rem;margin-bottom:2rem;letter-spacing:2px;animation:pulse 1.5s infinite}.progress-bar-bg{width:100%;height:10px;background:#333;border-radius:5px;overflow:hidden;margin-bottom:10px}.progress-bar-fill{height:100%;background:var(--primary-color);box-shadow:0 0 15px var(--primary-color);transition:width .2s ease-out}.loading-text{font-size:.8rem;color:#888;margin-top:5px;letter-spacing:1px}@keyframes pulse{0%{opacity:.6}50%{opacity:1;text-shadow:0 0 10px var(--primary-color)}to{opacity:.6}}@media(max-width:480px){.controls{padding:4px;gap:4px}.vol-label{display:none}.vol-control{width:86px;min-width:86px}.control-right-group{gap:4px}.pro-toggle-btn{font-size:.9rem;padding:0 .6rem}.fx-types button{font-size:.6rem;padding:4px 2px}.eq-row{height:40px}.v-slider label{font-size:.5rem}.loading-content h2{font-size:1rem;margin-bottom:1rem}}