/*! 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{.visible{visibility:visible}.relative{position:relative}.start{inset-inline-start:var(--spacing)}.table{display:table}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}}:root{--ivory:#f7f2e8;--paper:#fffdf8;--paper-soft:#fbf8f0;--ink:#202825;--muted:#6e7771;--forest:#183d35;--forest-dark:#102e29;--forest-soft:#27564b;--gold:#c69a52;--gold-deep:#a9782e;--sage:#b8c7b8;--line:#dce4da;--shadow:0 22px 60px #1e39301a}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:radial-gradient(circle at 8% 10%, #c69a521a, transparent 24rem), var(--ivory);color:var(--ink);font-family:var(--font-geist-sans), "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;-webkit-font-smoothing:antialiased;margin:0}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit}.site-header{z-index:20;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#fffdf8e0;border-bottom:1px solid #183d3517;justify-content:space-between;align-items:center;height:78px;padding:0 clamp(20px,5vw,72px);display:flex;position:sticky;top:0}.brand{letter-spacing:-.02em;align-items:center;gap:12px;font-size:16px;font-weight:720;text-decoration:none;display:inline-flex}.brand-mark{border:1.5px solid var(--gold);border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;display:inline-flex}.brand-mark span{border-bottom:2px solid var(--gold);border-radius:50%;width:20px;height:10px;transform:rotate(-9deg)}.site-header nav{align-items:center;gap:32px;display:flex}.site-header nav a{color:var(--forest);font-size:14px;font-weight:650;text-decoration:none}.site-header nav a:hover{color:var(--gold-deep)}.hero{max-width:1440px;margin:0 auto;padding:clamp(54px,7vw,96px) clamp(20px,5vw,72px) 84px}.intro{max-width:870px}.eyebrow,.section-kicker{color:var(--gold-deep);letter-spacing:.16em;text-transform:uppercase;margin:0 0 14px;font-size:12px;font-weight:760}.intro h1{color:var(--forest-dark);letter-spacing:-.055em;margin:0;font-size:clamp(42px,5.3vw,72px);font-weight:760;line-height:1.09}.lede{color:var(--muted);max-width:760px;margin:22px 0 0;font-size:clamp(16px,1.6vw,19px);line-height:1.8}.calculator-grid{grid-template-columns:minmax(0,1.06fr) minmax(420px,.94fr);align-items:stretch;gap:clamp(22px,3vw,40px);margin-top:48px;display:grid}.input-card,.result-card{border-radius:26px;min-width:0;padding:clamp(24px,3vw,38px)}.input-card{box-shadow:var(--shadow);background:#fffdf8f5;border:1px solid #b8c7b89e}.card-heading,.result-heading{z-index:2;justify-content:space-between;align-items:flex-start;margin-bottom:30px;display:flex;position:relative}.card-heading h2,.result-heading h2,.method-heading h2,.reference-section h2{letter-spacing:-.04em;margin:0;font-size:clamp(25px,2.3vw,34px);line-height:1.2}.type-badge,.ratio-chip{white-space:nowrap;border-radius:999px;padding:8px 12px;font-size:12px;font-weight:720}.type-badge{color:#815b22;background:#f2e6cf}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 20px;display:grid}.field-group{border:0;flex-direction:column;min-width:0;margin:0;padding:0;display:flex}.field-group>span:first-child,.field-group legend{color:var(--ink);margin-bottom:9px;padding:0;font-size:14px;font-weight:680}.field-group small{color:#7c857e;margin-top:7px;font-size:11px;line-height:1.45}.segmented-control,.round-control,.input-shell{background:#fffefa;border:1px solid #cfdacf;border-radius:13px;height:58px;transition:border-color .16s,box-shadow .16s}.segmented-control{grid-template-columns:1fr 1fr;gap:4px;padding:4px;display:grid}.round-control{background:#fffefa;border:1px solid #cfdacf;border-radius:13px;grid-template-columns:repeat(4,1fr);gap:4px;min-height:58px;padding:4px;display:grid}.round-control button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:9px;font-size:13px;font-weight:680;transition:background .16s,color .16s,box-shadow .16s}.round-control button.active{background:var(--forest);color:#fff;box-shadow:0 5px 14px #183d3529}.table-field{grid-column:1/-1}.segmented-control button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:9px;font-weight:680;transition:background .16s,color .16s,box-shadow .16s}.segmented-control button.active{background:var(--forest);color:#fff;box-shadow:0 5px 14px #183d3529}.segmented-control:focus-within,.round-control:focus-within,.input-shell:focus-within{border-color:var(--gold);box-shadow:0 0 0 3px #c69a5229}.input-shell{align-items:center;padding:0 17px;display:flex;overflow:hidden}.input-shell input{color:var(--forest-dark);background:0 0;border:0;outline:none;width:100%;min-width:0;height:100%;font-size:17px;font-weight:620}.input-shell input::placeholder{color:#a5ada7;font-weight:450}.input-shell .prefix,.input-shell .suffix{color:#7a827d;flex:none;font-size:13px;font-weight:650}.amount-shell{gap:9px}.calculate-button{color:#fffdf8;cursor:pointer;background:linear-gradient(135deg,#c79542,#d8ad63);border:0;border-radius:14px;justify-content:center;align-items:center;width:100%;height:64px;margin-top:28px;font-size:17px;font-weight:740;transition:filter .16s,transform .16s;display:flex;position:relative;box-shadow:0 12px 24px #a9782e38}.calculate-button:hover{filter:saturate(1.08)brightness(.98);transform:translateY(-1px)}.calculate-button:active{transform:translateY(0)scale(.995)}.calculate-button:focus-visible{outline-offset:3px;outline:3px solid #c69a5252}.button-arrow{font-size:24px;position:absolute;top:17px;right:22px}.result-card{background:radial-gradient(circle at 90% 0%, #c69a5221, transparent 32%), linear-gradient(145deg, var(--forest), var(--forest-dark));color:#fff;position:relative;overflow:hidden;box-shadow:0 24px 70px #102e293d}.gold-rings{pointer-events:none;width:180px;height:180px;position:absolute;top:-48px;right:-38px}.gold-rings span{border:1px solid #d9ae639e;border-radius:50%;position:absolute}.gold-rings span:first-child{inset:0}.gold-rings span:nth-child(2){inset:22px}.gold-rings span:nth-child(3){inset:44px}.result-heading .section-kicker{color:#d9b779}.ratio-chip{color:#f0d5a4;background:#fffdf81a;border:1px solid #debc8059}.result-list{z-index:2;gap:10px;display:grid;position:relative}.result-row{background:#ffffff0e;border:1px solid #dee8e12b;border-radius:14px;justify-content:space-between;align-items:center;gap:20px;min-height:80px;padding:15px 18px;display:flex}.result-row>div,.monthly-result>div{flex-direction:column;gap:4px;display:flex}.result-label,.monthly-result span{font-size:14px;font-weight:670}.result-row small,.monthly-result small{color:#eff6f19e;font-size:11px;line-height:1.45}.result-row strong{color:#f7ead2;font-variant-numeric:tabular-nums;letter-spacing:-.02em;text-align:right;font-size:clamp(17px,1.55vw,22px)}.monthly-result{background:var(--paper);color:var(--ink);z-index:2;border:1px solid #e2b666;border-radius:16px;justify-content:space-between;align-items:center;gap:20px;min-height:102px;margin-top:14px;padding:18px 20px;display:flex;position:relative}.monthly-result small{color:var(--muted)}.monthly-result strong{color:var(--gold-deep);font-variant-numeric:tabular-nums;letter-spacing:-.055em;white-space:nowrap;font-size:clamp(29px,3.2vw,46px)}.annual-summary{opacity:.78;justify-content:flex-end;align-items:center;margin-top:12px;font-size:12px;display:flex}.annual-summary strong{margin-left:7px;font-size:14px}.result-note{color:#eff6f1ad;z-index:2;border-top:1px solid #dee8e129;margin:20px 0 0;padding-top:17px;font-size:11px;line-height:1.65;position:relative}.method-section,.reference-section{max-width:1440px;margin:0 auto;padding:88px clamp(20px,5vw,72px)}.method-section{border-top:1px solid #183d351f}.method-heading{max-width:710px}.method-heading h2,.reference-section h2{color:var(--forest-dark);font-size:clamp(32px,4vw,48px)}.method-heading>p:last-child{color:var(--muted);margin:18px 0 0;font-size:16px;line-height:1.8}.steps{grid-template-columns:repeat(3,1fr);gap:16px;margin:42px 0 0;padding:0;list-style:none;display:grid}.steps li{background:#fffdf8cc;border:1px solid #b8c7b89e;border-radius:20px;min-width:0;padding:26px}.step-number{color:var(--gold-deep);letter-spacing:.14em;font-size:12px;font-weight:780}.steps h3{color:var(--forest-dark);letter-spacing:-.02em;margin:18px 0 9px;font-size:19px}.steps p{color:var(--muted);min-height:45px;margin:0;font-size:13px;line-height:1.7}.steps code{color:#5d503c;font-family:var(--font-geist-mono), monospace;overflow-wrap:anywhere;background:#f1ebde;border-radius:9px;margin-top:18px;padding:11px;font-size:11px;line-height:1.6;display:block}.reference-section{background:var(--paper-soft);border-radius:32px;grid-template-columns:minmax(250px,.72fr) minmax(0,1.28fr);align-items:start;gap:52px;margin-bottom:70px;display:grid}.reference-grid{grid-template-columns:1fr 1fr;gap:14px;display:grid}.reference-grid article{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:22px}.reference-grid article>span{color:var(--forest-dark);font-size:14px;font-weight:720}.reference-grid p{color:var(--muted);margin:12px 0 18px;font-size:12px;line-height:1.75}.reference-grid .source-note{border-top:1px solid var(--line);margin-bottom:0;padding-top:14px}.reference-grid a{color:var(--gold-deep);font-size:12px;font-weight:700;text-decoration:none}.reference-grid a:hover{text-decoration:underline}footer{background:var(--forest-dark);color:#ffffffb3;justify-content:space-between;align-items:center;min-height:92px;padding:20px clamp(20px,5vw,72px);font-size:11px;display:flex}footer p:first-child{color:#fff;font-size:13px;font-weight:680}@keyframes result-in{0%{opacity:.84;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}.result-card{animation:.26s ease-out result-in}@media (width<=1040px){.calculator-grid{grid-template-columns:minmax(0,1fr) minmax(380px,.9fr)}.form-grid{grid-template-columns:1fr}.monthly-result{flex-direction:column;align-items:flex-start}}@media (width<=920px){.calculator-grid{grid-template-columns:1fr}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.monthly-result{flex-direction:row;align-items:center}.steps{grid-template-columns:1fr}.steps p{min-height:0}.reference-section{border-radius:0;grid-template-columns:1fr;margin-bottom:0}}@media (width<=640px){.site-header{height:68px}.brand{gap:8px;font-size:13px}.brand-mark{width:30px;height:30px}.site-header nav{display:none}.hero{padding-top:46px}.desktop-break{display:none}.intro h1{font-size:40px}.lede{font-size:15px}.calculator-grid{margin-top:34px}.input-card,.result-card{border-radius:20px;padding:22px 18px}.form-grid{grid-template-columns:1fr}.card-heading,.result-heading{margin-bottom:24px}.ratio-chip,.type-badge{padding:7px 9px;font-size:10px}.result-row{flex-direction:column;align-items:flex-start;gap:8px}.result-row strong{text-align:left}.monthly-result{flex-direction:column;align-items:flex-start}.method-section,.reference-section{padding-top:66px;padding-bottom:66px}.reference-grid{grid-template-columns:1fr}footer{flex-direction:column;align-items:flex-start;gap:4px}footer p{margin:0}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}
