:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f4f6f8;--surface:#fff;--surface-soft:#f8fafc;--text:#101828;--muted:#667085;--line:#d9e2ec;--line-strong:#c5d0dc;--accent:#1769aa;--accent-dark:#0f4f82;--ok:#4f9f83;--ok-dark:#3d8269;--warn:#e25555;--danger:#b42318;--shadow:0 22px 60px #10182817;--shadow-sm:0 10px 26px #10182814;--dev-bg:#1a1816;--dev-bg-2:#221e1a;--dev-sunk:#16130f;--dev-line:#35302a;--dev-text:#ece7e0;--dev-text-dim:#9a9186;--dev-orange:#f0650f;--dev-green:#8ce00f;--dev-idle:#4a4038;--dev-dot:#5c3418;--font-ui:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-num:"Bahnschrift", "DIN Alternate", "Oswald", "Segoe UI", sans-serif;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--radius-sm:10px;--radius-md:14px;--radius-lg:22px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font-ui);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background:linear-gradient(90deg, #10182809 1px, transparent 1px), linear-gradient(180deg, #10182809 1px, transparent 1px), var(--bg);background-size:32px 32px;min-height:100dvh}#root{flex-direction:column;min-height:100dvh;display:flex}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font:inherit;color:inherit;background:0 0;border:none}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.site-frame{flex:none;width:min(1420px,100% - 28px);margin:0 auto}.app-header{justify-content:space-between;align-items:center;gap:18px;margin-top:14px;display:flex}.brand{align-items:center;gap:12px;min-width:0;display:flex}.brand-mark{border:1px solid var(--line);background:var(--surface);border-radius:8px;flex:none;grid-template-columns:repeat(5,1fr);align-items:center;gap:3px;width:44px;height:44px;padding:9px;display:grid;box-shadow:0 10px 26px #10182814}.brand-mark span{background:var(--accent);border-radius:999px;width:100%;display:block}.brand-mark span:first-child{background:var(--ok);height:32%}.brand-mark span:nth-child(2){height:72%}.brand-mark span:nth-child(3){background:#b7822c;height:48%}.brand-mark span:nth-child(4){background:var(--warn);height:88%}.brand-mark span:nth-child(5){background:var(--accent-dark);height:56%}.brand-copy{min-width:0}.brand-copy h1{letter-spacing:0;white-space:nowrap;margin:0;font-size:28px;font-weight:800;line-height:1.16}.header-note{color:var(--muted);white-space:nowrap;margin:4px 0 0;font-size:14px}.tool-nav{border:1.5px solid var(--line-strong);background:var(--surface);border-radius:10px;flex:none;margin-left:auto;display:flex;overflow:hidden;box-shadow:0 2px 8px #10182812}.tool-nav-item{color:var(--muted);white-space:nowrap;padding:10px 20px;font-size:14px;font-weight:800;text-decoration:none;transition:background .16s,color .16s}.tool-nav-item:not(:last-child){border-right:1.5px solid var(--line-strong)}.tool-nav-item:hover{color:var(--accent);background:#1769aa0d;text-decoration:none}.tool-nav-item.active{background:var(--accent);color:#fff}.mobile-label{display:none}.footer-strip{color:var(--muted);justify-content:space-between;align-items:center;gap:16px;margin:0 0 10px;font-size:13px;display:flex}.footer-strip strong{color:var(--accent-dark)}.footer-strip a{color:var(--accent-dark);font-weight:800;text-decoration:none}.footer-strip a:hover{text-decoration:underline}@media (width<=860px){.tool-nav-item{padding:8px 14px;font-size:12px}}@media (width<=560px){.site-frame{width:100%;padding:10px 12px 0}.app-header{gap:8px;min-height:40px;margin:0}.brand{gap:8px}.brand-mark{width:36px;height:36px;padding:7px}.brand-copy h1{font-size:17px}.header-note{margin-top:2px;font-size:10px}.tool-nav{border-radius:8px}.tool-nav-item{padding:7px 8px;font-size:11px}.desktop-label{display:none}.mobile-label{display:inline}.footer-strip{display:none}}@media (width>=900px){:root{--radius-sm:8px;--radius-md:10px;--radius-lg:14px;--font-ui:-apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif}}.tuner-page{flex-direction:column;flex:1;min-height:0;display:flex}.tuner-shell{flex-direction:column;flex:1;width:min(1420px,100% - 28px);min-height:0;margin:14px auto;display:flex}.device{border-radius:var(--radius-lg);background:var(--dev-bg);min-height:0;box-shadow:inset 0 1px 0 #ffffff0d, var(--shadow-sm);flex-direction:column;display:flex;overflow:hidden}.strip{background:var(--dev-bg-2);border-bottom:1px solid #14120f;flex:none;justify-content:center;align-items:center;gap:6px;height:40px;padding:0 12px;display:flex;overflow:hidden}.strip-dot{background:var(--dev-dot);border-radius:50%;flex:none;width:4px;height:4px}.strip-node{background:var(--dev-orange);color:#2a1405;width:20px;height:20px;font-family:var(--font-num);border-radius:50%;flex:none;place-items:center;font-size:11px;font-weight:700;display:grid}.strip-node[data-on=true]{background:var(--dev-green);color:#16240a;width:25px;height:25px;font-size:13px;box-shadow:0 0 0 3px #8ce00f29}.wheel{background:var(--dev-bg-2);height:76px;font-family:var(--font-num);color:var(--dev-orange);border-bottom:1px solid #14120f;flex:none;justify-content:center;align-items:center;gap:3px;font-weight:700;display:flex;overflow:hidden}.wheel span{white-space:nowrap;align-items:baseline;padding:0 3px;display:inline-flex}.wheel sub{font-size:.46em;font-weight:600;transform:translateY(.12em)}.wheel sup{font-size:.46em;font-weight:600}.wheel .w3{opacity:.42;font-size:16px}.wheel .w2{opacity:.6;font-size:22px}.wheel .w1{opacity:.8;font-size:29px}.wheel .w0{opacity:1;color:#fff;font-size:48px}.wheel[data-status=in-tune] .w0{color:var(--dev-green)}.wheel[data-status=idle]{color:var(--dev-idle)}.gauge-wrap{background:radial-gradient(130% 85% at 50% 4%,#241f1a 0%,#161311 74%);flex:1;min-height:0;position:relative}.gauge-wrap svg{width:100%;height:100%;display:block}.side-tools{flex-direction:column;gap:3px;display:flex;position:absolute;top:40%;right:0}.side-tools button{border-radius:var(--radius-md) 0 0 var(--radius-md);width:44px;height:52px;color:var(--dev-text-dim);background:#2e2823;place-items:center;font-size:18px;display:grid}.side-tools button[data-active=true]{color:var(--dev-green);background:#344b27}.side-tools button:disabled{opacity:.45;cursor:not-allowed}.verdict{text-align:center;background:var(--dev-sunk);border-top:1px solid #0e0c0a;flex:none;justify-content:center;align-items:center;min-height:48px;padding:8px 16px;display:flex}.verdict b{letter-spacing:.04em;color:var(--dev-text);font-size:16px;font-weight:700}.verdict[data-status=in-tune] b{color:var(--dev-green)}.verdict[data-status=low] b,.verdict[data-status=high] b{color:var(--dev-orange)}.verdict[data-status=idle] b{color:var(--dev-text-dim);font-weight:500}.panel{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-sm);flex-direction:column;gap:11px;padding:12px;display:flex}.string-row{gap:6px;display:grid}.string-hint{color:var(--muted);text-align:center;padding:4px 0 2px;font-size:12px;line-height:1.6}.string-btn{border:1.5px solid var(--line-strong);border-radius:var(--radius-md);background:var(--surface-soft);height:50px;color:var(--text);font-family:var(--font-num);flex-direction:column;justify-content:center;align-items:center;gap:3px;font-size:20px;font-weight:700;line-height:1;display:flex}.string-btn em{font-style:normal;font-family:var(--font-ui);color:var(--muted);font-size:11px;font-weight:600;line-height:1}.string-btn[data-active=true]{border-color:var(--accent);background:var(--accent);color:#fff;transform:scale(1.06);box-shadow:0 0 0 3px #1769aa40,0 2px 8px #1769aa59}.string-btn[data-active=true] em{color:#ffffffd9}.seg{border-radius:var(--radius-md);background:var(--surface-soft);border:1.5px solid var(--line-strong);align-self:center;padding:3px;display:inline-flex}.seg button{min-width:82px;height:30px;color:var(--muted);border-radius:7px;font-size:13px;font-weight:700}.seg button[data-active=true]{background:var(--accent);color:#fff}.seg[data-vertical=true]{flex-direction:column;align-self:stretch}.seg[data-vertical=true] button{width:100%;height:33px}.level{background:var(--surface-soft);border:1px solid var(--line);border-radius:3px;height:5px;overflow:hidden}.level i{background:linear-gradient(90deg, var(--ok), var(--accent));height:100%;transition:width .12s linear;display:block}.mic-btn{border-radius:var(--radius-md);background:var(--accent);color:#fff;letter-spacing:.03em;justify-content:center;align-items:center;gap:8px;height:50px;font-size:15px;font-weight:800;display:flex}.mic-btn[data-live=true]{background:var(--surface-soft);border:1.5px solid var(--line-strong);color:var(--warn)}.mic-btn .rec-dot{background:currentColor;border-radius:50%;width:8px;height:8px}.tuner-mobile{flex-direction:column;gap:10px;height:100%;min-height:0;display:flex}.inst-bar{flex:none;align-items:center;gap:8px;display:flex}.inst-picker{border:1.5px solid var(--line-strong);border-radius:var(--radius-md);background:var(--surface);flex:1;justify-content:center;align-items:center;gap:6px;min-width:0;height:40px;padding:0 12px;display:flex;position:relative}.inst-picker select{opacity:0;cursor:pointer;width:100%;height:100%;font:inherit;position:absolute;inset:0}.inst-picker b{font-size:14px;font-weight:800}.inst-picker span{color:var(--muted);font-size:12px}.inst-picker:after{content:"▾";color:var(--muted);font-size:10px}.icon-btn{border:1.5px solid var(--line-strong);border-radius:var(--radius-md);background:var(--surface);width:40px;height:40px;color:var(--muted);flex:none;place-items:center;display:grid}.tuner-mobile .device{flex:1;min-height:200px}.tuner-mobile .panel{flex:none}.mobile-panel{gap:8px;padding:10px}.mobile-ctl{align-items:stretch;gap:8px;display:flex}.mobile-ctl .seg{flex:none;align-self:stretch}.mobile-ctl .seg button{min-width:56px;height:auto}.mobile-ctl .mic-btn{flex:1;height:auto;min-height:44px}@media (width<=899px){html,body,#root{height:100dvh;overflow:hidden}.tuner-shell{width:min(1420px,100% - 20px);margin:10px auto}.tuner-mobile{gap:8px}.tuner-mobile .strip{height:32px}.tuner-mobile .wheel{height:60px}.tuner-mobile .wheel .w0{font-size:40px}.tuner-mobile .wheel .w1{font-size:24px}.tuner-mobile .wheel .w2{font-size:18px}.tuner-mobile .wheel .w3{font-size:13px}.tuner-mobile .verdict{min-height:38px}.tuner-mobile .verdict b{font-size:14px}.tuner-mobile .string-btn{height:44px;font-size:18px}}@media (width<=899px) and (height<=700px){.tuner-mobile .wheel{height:48px}.tuner-mobile .wheel .w0{font-size:32px}.tuner-mobile .string-btn{height:38px;font-size:16px}.tuner-mobile .device{min-height:160px}}@media (width>=900px){#root{height:calc(100dvh - 72px);min-height:648px;overflow:hidden}}.tuner-desktop{flex:1;grid-template-columns:224px minmax(0,1fr) 208px;gap:14px;min-height:0;display:grid}.side-card{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-sm);flex-direction:column;gap:16px;padding:14px;display:flex;overflow:hidden}.blk{flex-direction:column;gap:8px;min-height:0;display:flex}.side-card>.blk:first-child{flex:1}.side-card>.blk:not(:first-child){flex:none}.blk-label{letter-spacing:.1em;color:var(--muted);text-transform:uppercase;font-size:11px;font-weight:800}.opt-list{flex-direction:column;gap:3px;display:flex;overflow:auto}.opt-list button{text-align:left;border-radius:var(--radius-sm);height:33px;color:var(--text);border:1.5px solid #0000;padding:0 10px;font-size:13px;font-weight:600}.opt-list button:hover{background:#1769aa0d}.opt-list button[data-active=true]{border-color:var(--accent);color:var(--accent);background:#1769aa14;font-weight:800}.chips{flex-wrap:wrap;gap:5px;display:flex}.chips button{border:1.5px solid var(--line-strong);background:var(--surface-soft);height:29px;color:var(--muted);border-radius:999px;padding:0 11px;font-size:12px;font-weight:700}.chips button[data-active=true]{border-color:var(--accent);background:var(--accent);color:#fff}.stepper{border:1.5px solid var(--line-strong);border-radius:var(--radius-md);background:var(--surface-soft);align-items:center;gap:6px;height:40px;padding:0 5px;display:flex}.stepper button{border:1px solid var(--line-strong);background:var(--surface);width:28px;height:28px;color:var(--text);border-radius:6px;font-size:15px}.stepper .val{text-align:center;font-family:var(--font-num);flex:1;font-size:17px;font-weight:700}.stepper .val i{color:var(--muted);margin-left:2px;font-size:.62em;font-style:normal}.tuner-desktop .center-col{flex-direction:column;gap:12px;min-width:0;min-height:0;display:flex}.tuner-desktop .device{flex:1;min-height:0}.tuner-desktop .wheel{height:82px}.tuner-desktop .wheel .w0{font-size:54px}.tuner-desktop .verdict{min-height:52px}.tuner-desktop .verdict b{font-size:17px}.tuner-desktop .panel{flex:none}.tuner-desktop .string-btn{height:56px;font-size:23px}.tuner-desktop .string-btn em{font-size:12px}.tool-col{flex-direction:column;gap:5px;display:flex}.tool-col button{border:1.5px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--surface-soft);height:37px;color:var(--muted);align-items:center;gap:8px;padding:0 10px;font-size:13px;font-weight:600;display:flex}.tool-col button[data-active=true]{border-color:var(--accent);background:var(--accent);color:#fff}.tool-col button:disabled{opacity:.5;cursor:not-allowed}.kv-list{flex-direction:column;gap:6px;margin-top:auto;display:flex}.kv{color:var(--muted);justify-content:space-between;font-size:12px;display:flex}.kv b{font-family:var(--font-num);color:var(--text);font-size:13px;font-weight:700}.kv b[data-ok=true]{color:var(--ok-dark)}.state-panel{text-align:center;color:var(--dev-text);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:12px;padding:32px 24px;display:flex}.state-panel h2{font-size:17px;font-weight:700}.state-panel p{max-width:420px;color:var(--dev-text-dim);font-size:14px;line-height:1.7}.drawer-backdrop{z-index:50;background:#10182873;justify-content:center;align-items:flex-end;display:flex;position:fixed;inset:0}.drawer{border-radius:var(--radius-lg) var(--radius-lg) 0 0;background:var(--surface);flex-direction:column;gap:18px;width:min(520px,100%);max-height:86dvh;padding:20px;display:flex;overflow-y:auto}@media (width>=720px){.drawer-backdrop{align-items:center}.drawer{border-radius:var(--radius-lg)}}.drawer-head{justify-content:space-between;align-items:center;display:flex}.drawer-head h2{font-size:17px;font-weight:800}.drawer-row{flex-direction:column;gap:8px;display:flex}.drawer-row>label{letter-spacing:.08em;color:var(--muted);text-transform:uppercase;font-size:12px;font-weight:800}.drawer-row select{border:1.5px solid var(--line-strong);border-radius:var(--radius-md);background:var(--surface-soft);height:40px;color:var(--text);font:inherit;padding:0 10px}.privacy-note{color:var(--muted);font-size:12px;line-height:1.7}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width<=899px){html,body{min-height:100dvh;height:auto!important;overflow:visible!important}#root{height:calc(100dvh - 58px);min-height:0;overflow:hidden}.mobile-page{height:100%;min-height:0}.tuner-shell{min-height:0}}.seo-content{width:min(1120px,100% - 28px);color:var(--text);margin:28px auto 42px}.seo-content h2,.seo-content h3{letter-spacing:0}.seo-intro,.seo-section{border-top:1px solid var(--line-strong);padding:32px 0}.seo-intro{grid-template-columns:minmax(0,.85fr) minmax(460px,1.15fr);align-items:start;column-gap:72px;display:grid}.seo-intro>.seo-kicker,.seo-intro>h2,.seo-intro>p{grid-column:1}.seo-intro h2,.seo-section-heading h2{margin:5px 0 12px;font-size:36px;font-weight:850;line-height:1.2}.seo-intro>p:not(.seo-kicker),.seo-section>p,.instrument-groups p,.faq-list p{color:var(--muted);font-size:15px;line-height:1.9}.seo-kicker{color:var(--accent-dark);font-size:12px;font-weight:800}.seo-steps{counter-reset:steps;border-top:1px solid var(--line-strong);grid-area:1/2/span 3;list-style:none}.seo-steps li{counter-increment:steps;border-bottom:1px solid var(--line);grid-template-columns:42px 132px 1fr;align-items:baseline;gap:12px;padding:15px 0;display:grid}.seo-steps li:before{content:"0" counter(steps);color:var(--accent);font-family:var(--font-num);font-size:13px;font-weight:800}.seo-steps strong{font-size:15px}.seo-steps span{color:var(--muted);font-size:14px;line-height:1.7}.seo-section-heading{max-width:720px;margin-bottom:24px}.instrument-groups,.term-list{border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.instrument-groups>div,.term-list>div{padding:22px 24px}.instrument-groups>div:not(:last-child),.term-list>div:not(:last-child){border-right:1px solid var(--line-strong)}.instrument-groups h3,.term-list dt{color:var(--text);margin-bottom:9px;font-size:15px;font-weight:800}.term-list dd{color:var(--muted);font-size:14px;line-height:1.8}.faq-list{border-top:1px solid var(--line-strong)}.faq-list details{border-bottom:1px solid var(--line-strong)}.faq-list summary{cursor:pointer;padding:18px 42px 18px 0;font-size:15px;font-weight:800;list-style:none;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";color:var(--accent);font-family:var(--font-num);font-size:22px;font-weight:500;position:absolute;top:14px;right:4px}.faq-list details[open] summary:after{content:"−"}.faq-list p{max-width:820px;padding:0 0 18px}.related-tools{border-top:2px solid var(--accent);border-bottom:1px solid var(--line-strong);align-items:center;gap:20px;margin-top:32px;padding:20px 0;display:flex}.related-tools span{margin-right:auto;font-size:14px;font-weight:800}.related-tools a{font-size:14px;font-weight:800}@media (width<=760px){.seo-content{width:min(100% - 24px,1120px);margin-top:18px}.seo-intro{padding-top:26px;display:block}.seo-intro h2,.seo-section-heading h2{font-size:25px}.seo-steps{margin-top:22px}.seo-steps li{grid-template-columns:34px 1fr}.seo-steps span{grid-column:2}.instrument-groups,.term-list{grid-template-columns:1fr}.instrument-groups>div,.term-list>div{padding:18px 0}.instrument-groups>div:not(:last-child),.term-list>div:not(:last-child){border-right:0;border-bottom:1px solid var(--line-strong)}.related-tools{flex-direction:column;align-items:flex-start;gap:10px}.related-tools span{margin-right:0}.site-frame:last-of-type{padding-bottom:10px}.site-frame:last-of-type .footer-strip{flex-direction:column;align-items:flex-start;gap:7px;font-size:12px;line-height:1.7;display:flex}}
