.headii-mobile{--paper:#fafaf7;--ink:#182124;--muted:#606b70;--line:#859096;--subtle:#e2e6e5;--focus:#3454c8;--error:#ad3434;--success:#22674c;--font:HeadiiInter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);font-family:var(--font);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;-webkit-font-smoothing:antialiased;isolation:isolate;background:#e9eeec;font-size:16px;line-height:normal;position:fixed;inset:0}.headii-mobile *{box-sizing:border-box}.headii-mobile .content-surface{background:var(--paper);isolation:isolate;width:390px;max-width:100%;height:100%;margin:0 auto;position:relative;overflow:hidden}.headii-mobile .content-surface:before{content:"";pointer-events:none;z-index:-1;background:radial-gradient(#e5ebe82e 0%,#e9efed3d 30%,#0000 70%);border-radius:50%;width:280px;height:330px;position:absolute;top:-120px;right:0}.headii-mobile button,.headii-mobile input{color:inherit;font-family:inherit}.headii-mobile button{cursor:pointer;background:0 0;border:0;min-height:44px}.headii-mobile a{color:inherit;-webkit-tap-highlight-color:#3454c824;touch-action:manipulation;text-decoration:none}.headii-mobile .guide-row{position:relative}.headii-mobile .guide-row:active,.headii-mobile a[aria-busy=true]{background:#e8edeb}.headii-mobile .content-link-pending{background:var(--paper);color:var(--muted);border-radius:6px;padding:4px 8px;font-size:13px;line-height:20px;position:absolute;right:24px}.headii-mobile .content-navigation-notice{z-index:40;bottom:max(20px,env(safe-area-inset-bottom));background:var(--paper);border:1px solid #cbd4ce;border-radius:12px;width:calc(100% - 32px);max-width:358px;padding:16px;font-size:14px;line-height:22px;position:fixed;left:50%;transform:translate(-50%);box-shadow:0 4px 16px #18212424}.headii-mobile .content-navigation-notice p{margin:0 0 8px}.headii-mobile :is(.content-navigation-notice,.content-navigation-error) button{border:1px solid #859096;border-radius:8px;margin:4px;padding:8px 16px}.headii-mobile .content-navigation-error{background:var(--paper);max-width:390px;height:100%;margin:0 auto;padding:48px 24px;line-height:1.5}.content-swipe-hint{z-index:50;color:#182124;pointer-events:none;background:#edf2ed;border-radius:0 24px 24px 0;place-items:center;width:36px;height:52px;font:36px/1 sans-serif;display:grid;position:fixed;top:45%;left:max(0px,50vw - 195px);box-shadow:0 2px 12px #18212424}.headii-mobile :is(a,button,input):focus-visible{outline:3px solid var(--focus);outline-offset:3px}.headii-mobile svg{flex-shrink:0;width:20px;height:20px}.headii-mobile figure{margin-inline:0}.headii-mobile .lesson-player{margin-inline:auto}.headii-mobile .reset-studio-picture{isolation:isolate;position:relative}.headii-mobile .long-recording{background:#f0f3f1;border:1px solid #dce2df;border-radius:14px;margin:24px 0;padding:18px 16px}.headii-mobile .long-recording h2{margin:0 0 10px;font-size:17px;font-weight:600;line-height:24px}.headii-mobile .long-recording p{color:var(--muted);margin:0;font-size:14px;line-height:23px}.headii-mobile .long-recording .long-recording-condition{margin-top:10px;font-size:13px}.headii-mobile .mobile-nav{padding-top:env(safe-area-inset-top,0px);z-index:10;background:var(--paper);position:absolute;top:0;left:0;right:0}.headii-mobile .mobile-nav nav{justify-content:center;align-items:center;height:58px;margin:0 20px;display:flex;position:relative}.headii-mobile .mobile-nav .brand{width:88px;height:auto;display:block}.headii-mobile .mobile-back{border-radius:50%;place-items:center;width:44px;height:44px;display:grid;position:absolute;top:8px;left:-4px}.headii-mobile .mobile-back:hover{background:#e8edeb}.headii-mobile .content-scroll{top:calc(58px + env(safe-area-inset-top,0px));overscroll-behavior:contain;scrollbar-width:none;padding:18px 24px max(24px,env(safe-area-inset-bottom,0px));overflow-wrap:anywhere;position:absolute;bottom:0;left:0;right:0;overflow:auto}.headii-mobile .content-scroll::-webkit-scrollbar{display:none}.headii-mobile[data-embedded=true] .content-scroll{top:0}.headii-mobile .screen-head h1{letter-spacing:-1.1px;margin:0;font-size:30px;font-weight:600;line-height:38px}.headii-mobile .screen-head p{color:var(--muted);margin:12px 0 0;font-size:15px;line-height:23px}.headii-mobile .v5-tip-detail .screen-head h1{font-size:28px;line-height:36px}.headii-mobile .secondary{text-align:center;justify-content:center;align-items:center;min-height:52px;display:flex}.headii-mobile .v5-tip-card{display:block}.headii-mobile .guide-section-label{font-weight:500}.headii-mobile .guide-label{flex:1;min-width:0}.headii-mobile .v5-faq-label small{font-weight:500}.headii-mobile .guide-tip p{margin-bottom:0}.headii-mobile .v5-empty h2{margin:0 0 8px;font-size:16px;line-height:24px}.headii-mobile .help-footer h2{margin:0;font-weight:600;letter-spacing:-1.1px!important;font-size:30px!important;line-height:38px!important}.headii-mobile .content-scroll .text-action{font-family:inherit;text-decoration:underline}.headii-mobile .v5-faq .guide-step>div,.headii-mobile .v5-tip-detail .guide-step>div{flex:1}.headii-mobile .help-scroll input{border:1px solid var(--line);background:#fff;width:100%;min-height:52px;margin-bottom:20px;font-size:15px;display:block}.headii-mobile .reset-studio-video{object-fit:contain;width:100%;height:100%;display:block}.headii-mobile .reset-studio-picture video[hidden],.headii-mobile .lesson-picture video[hidden]{display:none}.headii-mobile .video-poster-cover{object-fit:contain;pointer-events:none;background:var(--paper);width:100%;height:100%;position:absolute;inset:0}.headii-mobile .video-buffering{pointer-events:none;justify-content:center;display:flex;position:absolute;inset:auto 12px 12px}.headii-mobile .video-buffering span{color:#182124;background:#fafaf7ed;border-radius:10px;padding:10px 14px;font-size:13px;box-shadow:0 2px 12px #18212418}.headii-mobile .bridge-notice{background:var(--paper);z-index:20;border:1px solid #cbd4ce;border-radius:12px;margin-top:24px;padding:16px;font-size:14px;line-height:22px;position:sticky;bottom:0;box-shadow:0 4px 16px #18212414}.headii-mobile .bridge-notice p{margin:0}.headii-mobile .content-skip{z-index:30;background:#fff;padding:12px;position:absolute;transform:translateY(-200%)}.headii-mobile .content-skip:focus{transform:none}.headii-mobile .sr-only{clip:rect(0,0,0,0);white-space:nowrap!important;border:0!important;width:1px!important;height:1px!important;padding:0!important;position:absolute!important;overflow:hidden!important}@media (max-width:600px){.headii-mobile .content-surface{width:100%}.content-swipe-hint{left:0}}@media (prefers-reduced-motion:reduce){.headii-mobile *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.help-search-excerpt{-webkit-line-clamp:2;color:#637176;-webkit-box-orient:vertical;margin-top:5px;font-size:13px;font-weight:400;line-height:1.5;display:-webkit-box;overflow:hidden}.headii-mobile .replay-only-player{margin-top:24px;margin-bottom:0}.headii-mobile .replay-only-player .lesson-picture{aspect-ratio:1}.headii-mobile .replay-only-controls{justify-content:center;align-items:center;height:44px;display:flex}.headii-mobile .content-surface .replay-only-controls button{color:var(--ink);min-height:44px;padding:0 16px;font-size:12px;font-weight:400}