:root{--theme-primary: #ffd54f;--theme-secondary: #ff4081;--theme-accent: #00e676;--theme-hud-bg: rgba(18, 18, 28, .85);--theme-hud-border: #ffd54f;--theme-modal-overlay-bg: rgba(10, 10, 20, .78);--theme-modal-card-bg-start: #282a3a;--theme-modal-card-bg-end: #1e1f2c;--theme-guide-box: rgba(255, 230, 0, .75);--theme-ready-gesture: #00e676;--theme-score-float-gain: #ffe600;--theme-score-float-mega: #ff3d00;--theme-energy-bar-peak: #e040fb;--theme-calorie-bar: #ff9100;--theme-touch-hand-bg: rgba(255, 215, 0, .35);--theme-touch-foot-bg: rgba(0, 230, 118, .35);--theme-text-primary: #ffffff;--theme-text-secondary: #e0e0e0;--theme-text-muted: #b0bec5;--theme-font-title: "Fredoka", "Noto Sans TC", sans-serif;--theme-font-body: "Noto Sans TC", sans-serif}*{box-sizing:border-box;margin:0;padding:0;user-select:none;-webkit-user-select:none}body,html{width:100%;height:100%;height:-webkit-fill-available;height:100dvh;overflow:hidden;background-color:#1a1a24;font-family:var(--theme-font-body);color:var(--theme-text-primary)}#gameContainer{position:relative;width:100vw;width:100%;height:100%;height:-webkit-fill-available;height:100dvh;display:flex;justify-content:center;align-items:center;background:#111;overflow:hidden}#webcam{position:absolute;width:100%;height:100%;object-fit:cover;transform:scaleX(-1);z-index:1;opacity:.9}#gameCanvas{position:absolute;top:0;left:0;width:100%;height:100%;z-index:2}#topHUD{position:absolute;top:16px;left:50%;transform:translate(-50%);z-index:10;display:flex;align-items:center;gap:16px;width:max-content;max-width:calc(100vw - 110px);white-space:nowrap;background:var(--theme-hud-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:10px 24px;border-radius:40px;border:3px solid var(--theme-hud-border);box-shadow:0 8px 32px #0009}.hud-item{display:flex;align-items:center;gap:8px;white-space:nowrap;font-size:1.1rem;font-weight:700;font-family:var(--theme-font-body)}.hud-val{color:var(--theme-score-float-gain);font-size:1.35rem;font-weight:900;white-space:nowrap;font-family:var(--theme-font-title);text-shadow:0 2px 4px rgba(0,0,0,.5)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;width:100%;height:100%;height:-webkit-fill-available;height:100dvh;background:var(--theme-modal-overlay-bg);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:50;display:flex;justify-content:center;align-items:center;padding:16px 12px;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;touch-action:pan-y;transition:opacity .3s ease}.modal-card{background:linear-gradient(135deg,var(--theme-modal-card-bg-start) 0%,var(--theme-modal-card-bg-end) 100%);border:4px solid var(--theme-primary);border-radius:28px;padding:28px 32px;text-align:center;max-width:580px;width:90%;max-height:80%;max-height:80vh;max-height:80dvh;margin:auto;overflow-y:auto;overflow-x:hidden;box-shadow:0 16px 48px #000000b3,0 0 24px var(--theme-primary);animation:popIn .35s cubic-bezier(.175,.885,.32,1.275);scrollbar-width:thin;scrollbar-color:var(--theme-primary) rgba(0,0,0,.2);-webkit-overflow-scrolling:touch;touch-action:pan-y;overscroll-behavior:contain}.modal-card::-webkit-scrollbar{width:8px}.modal-card::-webkit-scrollbar-track{background:#0003;border-radius:8px;margin:12px 0}.modal-card::-webkit-scrollbar-thumb{background:var(--theme-primary);border-radius:8px}.modal-card::-webkit-scrollbar-thumb:hover{background:var(--theme-secondary)}@keyframes popIn{0%{transform:scale(.8);opacity:0}to{transform:scale(1);opacity:1}}.title-emoji{font-size:4rem;margin-bottom:12px;display:inline-block;animation:floatEmoji 2s ease-in-out infinite}.modal-mascot-img{width:96px;height:96px;object-fit:contain;vertical-align:middle}@keyframes floatEmoji{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}h1{font-size:2.6rem;color:var(--theme-primary);font-family:var(--theme-font-title);margin-bottom:8px;text-shadow:0 4px 10px rgba(0,0,0,.6)}h2{font-size:2rem;color:var(--theme-text-primary);font-family:var(--theme-font-title);margin-bottom:14px}p.desc{font-size:1.15rem;color:var(--theme-text-secondary);line-height:1.6;margin-bottom:24px;white-space:pre-line}.btn-primary{background:linear-gradient(180deg,var(--theme-primary) 0%,var(--theme-secondary) 100%);color:var(--theme-text-primary);border:none;padding:14px 38px;font-size:1.35rem;font-weight:900;font-family:var(--theme-font-title);border-radius:30px;cursor:pointer;box-shadow:0 6px 18px #0006;transition:all .15s ease;display:inline-block}.btn-primary:hover{transform:translateY(-2px) scale(1.04);box-shadow:0 8px 24px #0009}.btn-primary:active{transform:translateY(2px) scale(.98)}.btn-secondary{background:#ffffff26;color:var(--theme-text-primary);border:2px solid rgba(255,255,255,.3);padding:8px 16px;font-size:.95rem;font-weight:700;border-radius:18px;cursor:pointer;margin:4px;transition:all .2s}.btn-secondary:hover{background:#ffffff4d}#countdownOverlay{position:absolute;top:0;left:0;width:100%;height:100%;z-index:60;display:flex;justify-content:center;align-items:center;background:#00000073;pointer-events:none}#countdownNumber{font-size:12rem;font-weight:900;font-family:var(--theme-font-title);color:var(--theme-primary);text-shadow:0 0 40px var(--theme-primary),0 8px 16px rgba(0,0,0,.9);animation:pulseCount .9s ease-out infinite}@keyframes pulseCount{0%{transform:scale(.6);opacity:0}40%{transform:scale(1.15);opacity:1}to{transform:scale(1);opacity:1}}.hidden{display:none!important}.menu-subtitle,#menuSubtitle{color:var(--theme-score-float-gain);font-weight:700;margin-bottom:8px}.menu-practice-section{margin-top:22px}.menu-practice-label,#menuPracticeLabel{font-size:.95rem;color:var(--theme-text-muted);margin-bottom:8px}.menu-setup-guide{margin-top:20px;padding:12px 14px;background:#00000038;border:1px solid rgba(255,255,255,.12);border-radius:18px;text-align:left}.menu-setup-title{font-family:var(--theme-font-title);font-size:.95rem;font-weight:700;color:var(--theme-score-float-gain);margin-bottom:10px;text-align:center;letter-spacing:.5px}.menu-setup-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.setup-step-card{background:#ffffff0d;border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:10px 8px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;transition:transform .2s ease,border-color .2s ease}.setup-step-card:hover{transform:translateY(-2px);border-color:var(--theme-primary)}.setup-step-header{display:flex;align-items:center;gap:6px}.setup-step-num{display:inline-flex;justify-content:center;align-items:center;width:18px;height:18px;border-radius:50%;background:var(--theme-primary);color:var(--theme-modal-card-bg-start, #1a1a2e);font-size:.75rem;font-weight:800;font-family:var(--theme-font-title)}.setup-step-icon{font-size:1.35rem}.setup-step-heading{font-family:var(--theme-font-title);font-weight:700;font-size:.88rem;color:var(--theme-text-primary)}.setup-step-desc{font-size:.75rem;color:var(--theme-text-muted);line-height:1.3}.menu-footer{margin-top:24px;padding-top:14px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:center;align-items:center;gap:8px;font-size:.85rem;color:var(--theme-text-muted)}.menu-version{font-family:var(--theme-font-title);letter-spacing:.5px}.menu-divider{opacity:.5}.menu-author-link{color:var(--theme-text-muted);text-decoration:underline;text-underline-offset:3px;transition:color .2s ease}.menu-author-link:hover{color:var(--theme-primary)}.tutorial-prompt-box{background:#0000004d;padding:1rem;border-radius:16px;margin-bottom:20px}.tutorial-ready-badge{display:inline-flex;flex-direction:column;align-items:center;gap:6px;margin-block-end:12px;padding:8px 20px;background:var(--theme-hud-bg);border-radius:20px;color:var(--theme-score-float-gain);font-family:var(--theme-font-title);font-size:1.5rem;font-weight:700;box-shadow:0 4px 12px #0006}.tutorial-ready-bar{width:180px;height:8px;background:#fff3;border-radius:4px;overflow:hidden}.tutorial-ready-fill{width:0%;height:100%;background:var(--theme-ready-gesture);border-radius:4px;transition:width .08s linear}#tutorialModal.modal-overlay{background:#00000073;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.victory-rank-label,#victoryRankLabel{font-size:.95rem;color:var(--theme-text-muted)}.btn-fullscreen{position:absolute;top:14px;right:14px;z-index:100;width:42px;height:42px;border-radius:50%;background:var(--theme-hud-bg);border:2px solid var(--theme-hud-border);color:var(--theme-text-primary);font-size:1.25rem;display:flex;justify-content:center;align-items:center;cursor:pointer;box-shadow:0 4px 16px #00000080;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:transform .15s ease,background .2s ease}.btn-fullscreen:hover{background:#fff3;transform:scale(1.05)}.btn-fullscreen:active{transform:scale(.92)}.victory-title,#victoryTitle{font-size:1.25rem;font-weight:700;color:var(--theme-text-muted);letter-spacing:2px;text-shadow:none;margin-bottom:4px}.victory-dist,#victoryDist{font-size:clamp(2.4rem,8.5vw,3.6rem);font-weight:900;font-family:var(--theme-font-title);color:var(--theme-score-float-gain);text-shadow:0 4px 16px rgba(0,0,0,.6),0 0 24px var(--theme-score-float-gain);margin:8px 0 16px;white-space:nowrap;line-height:1.15}.victory-rank-card{background:#ffe6001f;border:2px dashed var(--theme-primary);padding:12px 16px;border-radius:16px;margin-bottom:20px}.victory-title-tag,#victoryTitleTag{font-size:1.35rem;color:var(--theme-secondary);display:inline-block;margin-top:4px}@media (max-width: 600px){.modal-overlay{padding:12px 8px}.modal-card{padding:20px 16px;border-radius:20px;width:95%}.title-emoji{font-size:2.8rem;margin-bottom:8px}.modal-mascot-img{width:68px;height:68px}h1{font-size:2rem}h2{font-size:1.6rem}p.desc{font-size:1rem;margin-bottom:16px}.btn-primary{padding:12px 28px;font-size:1.15rem}#topHUD{padding:8px 16px;gap:10px;top:10px}.hud-item{font-size:.95rem;gap:4px}.hud-val{font-size:1.15rem}.btn-fullscreen{top:10px;right:10px;width:38px;height:38px;font-size:1.1rem}.tutorial-ready-badge{font-size:1.25rem}.menu-setup-steps{grid-template-columns:1fr;gap:8px}.setup-step-card{flex-direction:row;text-align:left;padding:8px 12px}}