@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.relative{position:relative}.start{inset-inline-start:var(--spacing)}.table{display:table}}:root{--bg:#07111e;--panel:#0b1727;--cyan:#2debc5;--red:#ff647d;--blue:#65a7ff;--line:#6682a43d;--paper:#edf0eb}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:#f4f7f5;margin:0;font-family:Arial,Microsoft YaHei,sans-serif}button{font:inherit}a{color:inherit;text-decoration:none}.brand{letter-spacing:2px;align-items:center;gap:10px;font-size:13px;font-weight:800;display:flex}.brand-mark{border:1px solid var(--cyan);width:34px;height:34px;color:var(--cyan);border-radius:50%;place-items:center;font-size:18px;display:grid}.brand small{color:#718198;letter-spacing:3px;margin-top:3px;font-size:8px;display:block}nav{border-bottom:1px solid var(--line);z-index:2;justify-content:space-between;align-items:center;width:100%;height:76px;padding:0 4vw;display:flex;position:absolute;top:0}.nav-links{gap:20px;display:flex}.nav-links button{color:#8291a4;cursor:pointer;background:0 0;border:0;font-size:10px}.nav-links button:hover{color:var(--cyan)}header{background:radial-gradient(circle at 78% 42%,#2debc51f,#0000 25%);min-height:535px;padding:145px 7vw 80px;position:relative;overflow:hidden}header:after{content:"";border:1px solid #2debc524;border-radius:50%;width:390px;height:390px;position:absolute;top:100px;right:9%;box-shadow:0 0 0 65px #2debc505,0 0 0 130px #2debc503}.eyebrow{letter-spacing:2px;color:var(--cyan);font:700 10px monospace}.eyebrow i{background:var(--cyan);vertical-align:middle;width:30px;height:1px;margin-right:10px;display:inline-block}header h1{letter-spacing:-4px;z-index:1;margin:32px 0 24px;font-size:clamp(51px,6.5vw,88px);line-height:1;position:relative}header h1 em{color:#0000;-webkit-text-stroke:1px var(--cyan);font-style:normal}header p{color:#94a2b3;z-index:1;max-width:630px;font-size:15px;line-height:1.9;position:relative}.lab{padding:0 4vw 110px}.tabs{border:1px solid var(--line);grid-template-columns:repeat(6,1fr);max-width:1450px;margin:auto;display:grid}.tabs button{text-align:left;color:#8190a4;border:0;border-right:1px solid var(--line);cursor:pointer;background:#091423;min-height:98px;padding:17px;transition:all .2s}.tabs button:last-child{border-right:0}.tabs small,.tabs span,.tabs i{display:block}.tabs small{color:#526279;margin-bottom:10px;font:9px monospace}.tabs span{font-size:13px}.tabs i{color:#57687d;margin-top:9px;font-size:8px;font-style:normal}.tabs button.active{box-shadow:inset 0 -2px var(--cyan);color:#fff;background:#2debc514}.tabs button.active small,.tabs button.active i{color:var(--cyan)}.workspace{border:1px solid var(--line);border-top:0;grid-template-columns:1.55fr .8fr;max-width:1450px;min-height:690px;margin:auto;display:grid}.visual{border-right:1px solid var(--line);position:relative;overflow:hidden}.visual-top{border-bottom:1px solid var(--line);color:#8292a7;letter-spacing:1px;justify-content:space-between;align-items:center;height:62px;padding:0 22px;font:9px monospace;display:flex}.visual-top i{background:#506078;border-radius:50%;width:6px;height:6px;margin-right:8px;display:inline-block}.visual-top i.live{background:var(--cyan);box-shadow:0 0 10px var(--cyan)}.visual-top button{color:#a0afc0;cursor:pointer;background:0 0;border:1px solid #314158;padding:8px 12px;font-size:9px}.diagram{background:radial-gradient(circle,#2debc50d,#0000 45%);width:100%;height:590px;display:block}.orientation{color:#64758a;gap:22px;font-size:9px;display:flex;position:absolute;bottom:18px;left:22px;right:22px}.explain{background:var(--panel);padding:44px 42px}.meta{color:var(--cyan);letter-spacing:1px;justify-content:space-between;font:9px monospace;display:flex}.meta b{border:1px solid #36536a;border-radius:20px;padding:6px 10px}.explain h2{margin:28px 0 16px;font-size:38px}.explain>p{color:#8e9caf;font-size:12px;line-height:1.9}.hero-formula{color:var(--cyan);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:25px 0;padding:20px 0;font:italic 24px Georgia}.explain h3{letter-spacing:1px;color:#7f8fa4;margin:24px 0 10px;font-size:10px}.explain ol,.explain ul{margin:0;padding:0;list-style:none}.explain li{color:#b2bdc9;padding:8px 0;font-size:11px}.explain ol b{color:var(--cyan);margin-right:10px;font:8px monospace}.explain ul li:before{content:"＋";color:var(--red);margin-right:9px}.overview{background:var(--paper);color:#0a1420;padding:105px 6vw}.overview>div:first-child{max-width:1450px;margin:0 auto 35px}.overview span,.sources>span{letter-spacing:2px;color:#087e69;font:700 9px monospace}.overview h2{margin:12px 0;font-size:37px}.formula-grid{border:1px solid #cbd1cd;grid-template-columns:repeat(3,1fr);max-width:1450px;margin:auto;display:grid}.formula-grid button{text-align:left;cursor:pointer;color:#0a1420;background:0 0;border:1px solid #cbd1cd;border-top:0;border-left:0;min-height:210px;padding:28px}.formula-grid button:nth-child(3n){border-right:0}.formula-grid button:nth-child(n+4){border-bottom:0}.formula-grid button:hover{background:#e0e9e4}.formula-grid small{color:#75817d;font:9px monospace}.formula-grid h3{font-size:19px}.formula-grid strong{color:#087e69;margin:27px 0;font:italic 19px Georgia;display:block}.formula-grid i{color:#6d7975;font-size:9px;font-style:normal}.sources{max-width:1450px;margin:auto;padding:70px 6vw}.sources p{color:#8b99aa;font-size:11px}.sources>div{flex-wrap:wrap;gap:12px;margin-top:25px;display:flex}.sources a{border:1px solid var(--line);color:#9cabbc;padding:10px 14px;font-size:9px}.sources a:hover{color:var(--cyan);border-color:var(--cyan)}footer{border-top:1px solid var(--line);color:#75859a;justify-content:space-between;align-items:center;height:145px;padding:0 6vw;display:flex}footer p,footer a{font-size:10px}footer a{color:var(--cyan)}@media (max-width:1050px){.nav-links{display:none}.tabs{grid-template-columns:repeat(3,1fr)}.workspace{grid-template-columns:1fr}.visual{border-right:0;border-bottom:1px solid var(--line)}.formula-grid{grid-template-columns:repeat(2,1fr)}.formula-grid button:nth-child(3n){border-right:1px solid #cbd1cd}.formula-grid button:nth-child(2n){border-right:0}.formula-grid button:nth-child(n+4){border-bottom:1px solid #cbd1cd}.formula-grid button:nth-child(n+5){border-bottom:0}}@media (max-width:600px){nav{padding:0 18px}header{min-height:490px;padding:130px 20px 65px}header:after{display:none}header h1{letter-spacing:-2px;font-size:47px}.lab{padding:0 18px 75px}.tabs{grid-template-columns:repeat(2,1fr)}.tabs button{min-height:88px}.workspace{border-left:0;border-right:0}.diagram{height:410px}.orientation{flex-wrap:wrap;gap:10px}.explain{padding:34px 24px}.explain h2{font-size:32px}.overview{padding:75px 18px}.formula-grid{grid-template-columns:1fr}.formula-grid button{border-bottom:1px solid #cbd1cd!important;border-right:0!important}.formula-grid button:last-child{border-bottom:0!important}.sources{padding:60px 20px}footer{flex-direction:column;align-items:flex-start;gap:24px;height:auto;padding:32px 20px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}.workspace{grid-template-columns:minmax(520px,1.2fr) minmax(270px,.58fr) minmax(300px,.68fr)}.param-panel{border-right:1px solid var(--line);background:#091523}.param-head{border-bottom:1px solid var(--line);color:#7f90a5;letter-spacing:1px;justify-content:space-between;align-items:center;height:62px;padding:0 18px;font:9px monospace;display:flex}.param-head button{color:#92a2b5;cursor:pointer;background:0 0;border:1px solid #314158;padding:7px 10px;font-size:9px}.sliders label{border-bottom:1px solid var(--line);padding:18px;display:block}.sliders label>span{color:#8f9fb2;justify-content:space-between;align-items:end;font-size:10px;display:flex}.sliders label b{color:#fff;font-size:17px}.sliders label small{color:var(--cyan);font-size:8px}.sliders input{appearance:none;width:100%;height:2px;accent-color:var(--cyan);background:#34445a;margin:19px 0 7px}.sliders input::-webkit-slider-thumb{appearance:none;background:var(--cyan);border-radius:50%;width:13px;height:13px;box-shadow:0 0 12px #2debc5a6}.sliders label>i{justify-content:space-between;font-style:normal;display:flex}.sliders em{color:#53647a;font:8px monospace}.live-result{background:#2debc50a;border:1px solid #2debc540;margin:17px;padding:18px}.live-result>span{color:#718297;margin-bottom:10px;font-size:9px;display:block}.live-result strong{color:var(--cyan);font-size:27px}.live-result small{color:#8ea0b4;margin-left:7px;font:9px monospace}.live-result p{color:#8292a5;margin:12px 0 0;font-size:9px;line-height:1.6}.explain{padding:36px 30px}.explain h2{font-size:32px}@media (max-width:1250px){.workspace{grid-template-columns:1fr 330px}.visual{border-bottom:1px solid var(--line);grid-row:1}.param-panel{border-right:0;grid-area:1/2}.explain{grid-column:1/3}}@media (max-width:760px){.workspace{grid-template-columns:1fr}.visual,.param-panel,.explain{grid-area:auto/1}.param-panel{border-bottom:1px solid var(--line)}.explain{grid-column:1}.orientation{border-top:1px solid var(--line);grid-template-columns:1fr 1fr;gap:5px 14px;padding:13px 18px 15px;line-height:1.55;display:grid;position:static}.orientation span:last-child{grid-column:1/-1}}