/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
@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)}.end{inset-inline-end:var(--spacing)}.table{display:table}}:root{--ink:#102a2a;--muted:#637474;--paper:#f7f7f1;--card:#fff;--line:#dfe6e1;--green:#0f766e;--lime:#d9f99d}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);margin:0;font-family:Arial,PingFang SC,Microsoft YaHei,sans-serif}button,input,select{font:inherit}button,select,input[type=range]{cursor:pointer}button:focus-visible,input:focus-visible,select:focus-visible{outline-offset:2px;outline:3px solid #0f766e38}.loading{min-height:100vh;color:var(--muted);place-content:center;justify-items:center;gap:18px;display:grid}.loading-mark{border:3px solid var(--line);border-top-color:var(--green);border-radius:50%;width:44px;height:44px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.site-header,.hero,.calculator,.method,footer{max-width:1240px;margin:0 auto}.site-header{justify-content:space-between;align-items:center;height:72px;padding:0 28px;display:flex}.brand{color:var(--ink);letter-spacing:-.04em;align-items:center;gap:10px;font-size:20px;font-weight:800;text-decoration:none;display:flex}.brand-mark{color:#fff;background:var(--ink);border-radius:9px;place-content:center;width:32px;height:32px;font-size:16px;display:grid}.edition{color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:7px 12px;font-size:12px}.hero{justify-content:space-between;align-items:center;min-height:410px;padding:66px 72px 78px;display:flex;position:relative;overflow:hidden}.hero:before,.hero:after{content:"";pointer-events:none;border-radius:50%;position:absolute}.hero:before{background:var(--lime);opacity:.52;filter:blur(2px);width:320px;height:320px;right:40px}.hero:after{border:1px solid #102a2a1f;width:210px;height:210px;top:90px;right:190px}.eyebrow{color:var(--green);letter-spacing:.16em;text-transform:uppercase;margin:0 0 14px;font-size:12px;font-weight:800}.hero h1{letter-spacing:-.07em;max-width:700px;margin:0;font-size:clamp(48px,6.2vw,82px);line-height:1.02}.hero-copy{max-width:540px;color:var(--muted);margin:24px 0 0;font-size:16px;line-height:1.75}.hero-badge{z-index:1;background:var(--ink);color:#fff;text-align:center;border-radius:50%;place-content:center;width:190px;height:190px;display:grid;position:relative;transform:rotate(6deg);box-shadow:0 26px 70px #102a2a2e}.hero-badge strong{letter-spacing:-.06em;font-size:62px;line-height:.9}.hero-badge span{color:#d9e7e2;margin-top:12px;font-size:13px;line-height:1.45}.calculator{background:var(--card);border:1px solid var(--line);border-radius:28px;grid-template-columns:minmax(340px,.82fr) minmax(0,1.5fr);display:grid;overflow:hidden;box-shadow:0 24px 80px #102a2a14}.controls{border-right:1px solid var(--line);background:#fbfcf8;padding:40px}.results{min-width:0;padding:40px}.section-heading{align-items:flex-start;gap:15px;margin-bottom:30px;display:flex}.section-heading>span{background:var(--ink);color:#fff;border-radius:50%;place-content:center;width:32px;height:32px;font-size:11px;font-weight:700;display:grid}.section-heading h2{letter-spacing:-.04em;margin:1px 0 5px;font-size:22px}.section-heading p{color:var(--muted);margin:0;font-size:12px;line-height:1.45}.field{margin-top:22px;display:block}.field-label{justify-content:space-between;align-items:baseline;min-height:18px;margin-bottom:9px;font-size:13px;font-weight:700;display:flex}.field-label small{color:#8a9999;font-size:10px;font-weight:500}select,.readonly-value,.money-input{border:1px solid var(--line);width:100%;min-height:48px;color:var(--ink);background:#fff;border-radius:12px}select{appearance:auto;padding:0 40px 0 14px}.segmented{flex-wrap:wrap;gap:7px;display:flex}.segmented button{border:1px solid var(--line);color:#506060;background:#fff;border-radius:10px;flex:auto;min-width:58px;min-height:42px;padding:8px 10px;font-size:12px;transition:all .16s}.segmented button[aria-pressed=true]{color:#fff;background:var(--ink);border-color:var(--ink);box-shadow:0 5px 15px #102a2a24}.range-row{align-items:center;gap:16px;display:flex}input[type=range]{accent-color:var(--green);flex:1}.range-row output{text-align:right;letter-spacing:-.05em;min-width:68px;font-size:28px;font-weight:800}.range-row output small{color:var(--muted);margin-left:3px;font-size:12px}.money-input{align-items:center;gap:8px;padding:0 14px;display:flex}.money-input>span{color:var(--green);font-size:18px;font-weight:700}.money-input input{min-width:0;color:var(--ink);background:0 0;border:0;outline:0;flex:1;font-size:18px;font-weight:700}.money-input small{color:var(--muted);font-size:11px}.field-pair{grid-template-columns:1fr 1fr;gap:12px;display:grid}.readonly-value{align-items:center;padding:0 14px;font-weight:700;display:flex}.readonly-value span{color:var(--muted);margin-left:auto;font-size:10px;font-weight:500}.source-note{color:#23634f;background:#edf8f3;border-radius:12px;align-items:center;gap:9px;margin-top:26px;padding:12px 14px;font-size:11px;display:flex}.source-note span{background:#c7eadc;border-radius:50%;place-content:center;width:20px;height:20px;display:grid}.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.metric{border:1px solid var(--line);border-radius:16px;flex-direction:column;justify-content:space-between;min-height:136px;padding:21px;display:flex}.metric.primary{background:var(--accent);border-color:#0000}@supports (color:color-mix(in lab, red, red)){.metric.primary{background:color-mix(in srgb, var(--accent) 9%, white)}}.metric>span{color:var(--muted);font-size:12px}.metric strong{letter-spacing:-.055em;white-space:nowrap;margin:10px 0 8px;font-size:clamp(23px,2.4vw,34px);display:block}.metric strong small{color:var(--muted);letter-spacing:0;margin-left:4px;font-size:13px}.metric>small{color:#819090;font-size:10px}.chart-card{border:1px solid var(--line);border-radius:16px;margin-top:12px;padding:22px 20px 12px;overflow:visible}.chart-title{justify-content:space-between;align-items:flex-start;margin-bottom:8px;display:flex}.chart-title span{font-size:14px;font-weight:800;display:block}.chart-title small{color:var(--muted);font-size:10px}.chart-title b{background:#f0f3ef;border-radius:999px;padding:6px 9px;font-size:10px}.chart-wrap{width:100%;overflow:visible}.chart-wrap svg{width:100%;min-height:220px;display:block}.legend{min-height:24px;color:var(--muted);flex-wrap:wrap;justify-content:flex-end;gap:12px;font-size:12px;display:flex}.legend span{align-items:center;gap:5px;display:flex}.legend i{border-radius:50%;width:7px;height:7px}.grid-line{stroke:#e9eeea;stroke-width:1px}.axis-label{fill:#8a9999;font-size:12px}.empty-chart{min-height:240px;color:var(--muted);place-content:center;font-size:12px;display:grid}.terms-strip{flex-wrap:wrap;gap:7px;margin-top:12px;display:flex}.terms-strip span{color:var(--muted);background:#f3f5f1;border-radius:7px;padding:7px 9px;font-size:9px}.method{padding:110px 44px 100px}.method h2{letter-spacing:-.06em;margin:0;font-size:clamp(36px,4.2vw,54px)}.method-grid{border-top:1px solid var(--line);grid-template-columns:repeat(3,1fr);margin-top:46px;display:grid}.method-grid article{padding:30px 30px 0 0}.method-grid article+article{border-left:1px solid var(--line);padding-left:30px}.method-grid span{color:var(--green);font-size:11px;font-weight:800}.method-grid h3{margin:22px 0 10px;font-size:18px}.method-grid p{color:var(--muted);margin:0;font-size:13px;line-height:1.7}footer{color:#d6e1dd;background:var(--ink);border-radius:24px;grid-template-columns:.7fr 1.5fr;align-items:start;gap:32px;min-height:190px;margin-bottom:28px;padding:40px 44px;display:grid}footer div{flex-direction:column;gap:6px;display:flex}footer strong{color:#fff;font-size:25px}footer span,footer small{color:#8da3a0;font-size:11px}footer p{max-width:620px;margin:0;font-size:12px;line-height:1.8}footer small{grid-column:2}@media (width<=900px){.hero{padding-left:34px;padding-right:34px}.hero-badge{width:150px;height:150px}.hero-badge strong{font-size:48px}.calculator{grid-template-columns:1fr;margin:0 18px}.controls{border-right:0;border-bottom:1px solid var(--line)}.results{padding:34px}}@media (width<=620px){.site-header{height:62px;padding:0 18px}.edition{padding:6px 9px;font-size:9px}.hero{align-items:flex-start;min-height:390px;padding:52px 22px 70px}.hero h1{font-size:49px}.hero-copy{max-width:330px;font-size:14px}.hero:before{width:230px;height:230px;bottom:12px;right:-90px}.hero:after{display:none}.hero-badge{width:96px;height:96px;position:absolute;bottom:22px;right:18px}.hero-badge strong{font-size:34px}.hero-badge span{margin-top:6px;font-size:8px}.calculator{border-radius:21px;margin:0 10px}.controls,.results{padding:26px 20px}.section-heading{margin-bottom:24px}.field{margin-top:20px}.field-pair{grid-template-columns:1fr;gap:0}.metric-grid{grid-template-columns:1fr}.metric{min-height:118px}.metric strong{font-size:29px}.chart-card{padding:18px 12px 8px}.chart-wrap svg{min-height:195px}.legend{justify-content:flex-start;gap:8px}.method{padding:82px 22px 70px}.method-grid{grid-template-columns:1fr}.method-grid article,.method-grid article+article{border-left:0;border-bottom:1px solid var(--line);padding:25px 0}footer{border-radius:20px;grid-template-columns:1fr;margin:0 10px 10px;padding:30px 24px}footer small{grid-column:1}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;animation-duration:.01ms!important}}

.chart-svg-box{position:relative;width:100%;overflow:visible}
.chart-interactive svg{touch-action:manipulation;cursor:crosshair}
.chart-tip{z-index:8;min-width:156px;max-width:min(240px,78vw);padding:10px 12px;border-radius:12px;background:#102a2af2;color:#fff;box-shadow:0 12px 32px #102a2a40;pointer-events:auto}
.chart-tip-fixed{position:fixed}
.chart-tip-center.chart-tip-above{transform:translate(-50%,calc(-100% - 12px))}
.chart-tip-center.chart-tip-below{transform:translate(-50%,12px)}
.chart-tip-left.chart-tip-above{transform:translate(0,calc(-100% - 12px))}
.chart-tip-left.chart-tip-below{transform:translate(0,12px)}
.chart-tip-right.chart-tip-above{transform:translate(-100%,calc(-100% - 12px))}
.chart-tip-right.chart-tip-below{transform:translate(-100%,12px)}
.chart-tip-age{font-size:12px;font-weight:800;margin-bottom:8px}
.chart-tip-row{display:flex;align-items:center;gap:6px;margin-top:5px;font-size:11px}
.chart-tip-row i{width:7px;height:7px;border-radius:50%;flex:none}
.chart-tip-row span{color:#c9d8d4;flex:1;min-width:0}
.chart-tip-row b{font-size:11px;font-weight:700;white-space:nowrap}
.chart-tip-close{margin-top:10px;width:100%;border:0;border-radius:8px;padding:6px 0;background:#ffffff22;color:#fff;font-size:11px}
.chart-dot,.chart-bar{cursor:pointer}

.chart-fs-btn{display:none}
.chart-wrap.is-fs{position:fixed!important;z-index:9999;margin:0;background:#f7f7f1;box-sizing:border-box;display:flex;flex-direction:column;padding:12px 16px 16px}
.chart-wrap.is-fs .legend{flex:none;justify-content:flex-start;font-size:14px;margin-bottom:8px}
.chart-wrap.is-fs .chart-svg-box{flex:1;min-height:0;width:100%}
.chart-wrap.is-fs svg{width:100%;height:100%;min-height:0}
.chart-wrap.is-fs .axis-label{font-size:14px}
.chart-wrap.is-fs .chart-fs-btn{display:block;margin-top:10px;flex:none}
.chart-wrap.is-fs .chart-svg-box{overflow:visible;position:relative}
.chart-wrap.is-fs .chart-tip{position:absolute;z-index:20}
@media (orientation:portrait){
.chart-wrap.is-fs{top:0;left:100%;width:100vh;height:100vw;transform:rotate(90deg);transform-origin:top left}
}
@media (orientation:landscape){
.chart-wrap.is-fs{inset:0;width:100vw;height:100vh;transform:none}
}
@media (width<=900px){
.chart-fs-btn{display:block;width:100%;margin-top:12px;min-height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);font-size:14px;font-weight:700}
.chart-wrap.svg,.chart-wrap svg{min-height:240px}
.axis-label{font-size:13px}
.legend{font-size:13px}
}