:root{--green:#174c3c;--ink:#193e32;--ivory:#f2f6f0;--gold:#efe9af;--muted:#596e62;--line:#ccd8ce;--serif:"Yu Mincho","Hiragino Mincho ProN",serif;--sans:"Yu Gothic","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:auto}body{margin:0;color:var(--ink);background:var(--ivory);font-family:var(--sans);font-size:16px;line-height:1.75;overflow-wrap:anywhere}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default}svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none}.icon-definitions{position:absolute;width:0;height:0;overflow:hidden}:focus-visible{outline:3px solid #b0942b;outline-offset:4px}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;border:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.skip-link{position:fixed;top:10px;left:14px;z-index:100;transform:translateY(-150%);background:white;border:2px solid var(--green);padding:12px}.skip-link:focus{transform:none}
.site-header{height:78px;max-width:1440px;padding:0 5%;margin:auto;display:flex;align-items:center;justify-content:space-between;background:white;gap:20px}.brand{font:36px Georgia,"Times New Roman",serif;letter-spacing:-1.4px;white-space:nowrap}.brand span{color:#978833}.site-header nav{display:flex;align-items:center;gap:30px;font-size:14px}.gallery-link{min-height:44px;display:flex;align-items:center}.header-cta{background:var(--green);color:white;min-height:46px;padding:10px 22px;display:flex;gap:14px;align-items:center;border-radius:6px;font-weight:700}.header-cta:hover{background:#27604b}
.intro{max-width:1220px;margin:0 auto;padding:62px 32px 46px;display:grid;grid-template-columns:1.35fr 1fr;gap:38px;align-items:end}.intro h1{font:600 clamp(37px,4.3vw,65px)/1.5 var(--serif);letter-spacing:-.025em;margin:0 0 12px}.lead{font:500 clamp(19px,1.8vw,26px)/1.8 var(--serif);margin:0}.intro-side>p{font-size:16px;line-height:1.95;margin:0 0 13px}.scroll-invitation{display:inline-flex;align-items:center;gap:20px;min-height:44px;font-size:13px;color:var(--muted)}.scroll-invitation svg{transform:rotate(90deg)}
.story{--threshold:1;--flag:1;--proposal:1;--review:1;--progress:1;position:relative;padding:0 24px;background:var(--ivory)}.story-stage{max-width:1156px;margin:0 auto;padding:25px 0 76px}.story[data-mode="scroll"]{height:calc(100svh + 230svh)}.story[data-mode="scroll"] .story-stage{position:sticky;top:12px;min-height:calc(100svh - 24px);display:flex;flex-direction:column;justify-content:center}.stage-caption{margin-bottom:19px;text-align:center;min-height:116px}.stage-number{font-size:12px;letter-spacing:.08em;color:var(--muted);margin:0 0 5px}.stage-number span{font-weight:800;color:var(--green)}.stage-caption h2{font:600 clamp(25px,2.65vw,38px)/1.45 var(--serif);margin:0 0 8px}.stage-caption>p:last-child{font-size:15px;line-height:1.8;color:var(--muted);margin:0}.ledger{background:white;border-radius:12px;border:1px solid #d4ded5;overflow:hidden;box-shadow:0 8px 30px #173d3305}.ledger-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 23px;border-bottom:1px solid var(--line)}.ledger-heading strong{font-size:17px}.ledger-heading>span{font-size:12px;color:var(--muted)}.stock-table{border-collapse:collapse;width:100%;table-layout:fixed;font-variant-numeric:tabular-nums}.stock-table th,.stock-table td{text-align:center;padding:14px 16px;border-bottom:1px solid var(--line);border-right:1px solid var(--line)}.stock-table th:last-child,.stock-table td:last-child{border-right:0}.stock-table thead th{background:#f8faf7;font-size:13px;font-weight:500}.stock-table thead th:first-child{width:30%}.stock-table thead th:nth-child(2){width:20%}.stock-table thead th:nth-child(3){width:25%}.stock-table thead th:nth-child(4){width:25%}.stock-table tbody th{text-align:left;font-size:17px;padding-left:23px;font-weight:700}.stock-table small{display:block;color:var(--muted);font-size:12px;font-weight:400;margin-top:5px}.stock-table td>strong,.proposal-value>strong{font-size:28px;font-weight:600;line-height:1.2}.stock-table td>span,.proposal-value>span{font-size:14px;margin-left:4px}.stock-table .threshold-column{opacity:var(--threshold)}.stock-table .threshold-column strong{font-size:20px}.stock-table .threshold-column>span{font-size:12px}.stock-table .proposal-column{opacity:var(--proposal)}.proposal-value{transform:translateX(calc((1 - var(--proposal))*24px))}.stock-table tr[data-short="true"] .count-cell{background:rgba(239,233,175,var(--flag))}.stock-table tr[data-short="true"] .proposal-column{background:rgba(239,233,175,calc(var(--proposal)*.5))}.stock-table tr[data-short="false"] .proposal-value{color:#647b6c}.calculation-strip{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:15px 23px;min-height:68px}.calculation-strip>p{font-size:14px;line-height:1.7;margin:0;opacity:var(--proposal)}.review-mark{font-size:12px;white-space:nowrap;color:var(--green);border-bottom:2px solid var(--gold);opacity:var(--review)}
.stage-controls{position:relative;display:none;grid-template-columns:repeat(5,1fr);margin:24px 6% 0}.story[data-ready="true"] .stage-controls{display:grid}.stage-controls button{position:relative;z-index:1;background:none;border:0;min-height:67px;display:flex;flex-direction:column;align-items:center;gap:4px;font-size:13px;color:var(--muted)}.stage-controls button>span{display:grid;place-items:center;width:34px;height:34px;background:var(--ivory);border:1px solid #99afa0;border-radius:50%;font:20px Georgia,serif}.stage-controls button[aria-pressed="true"]{font-weight:700;color:var(--green)}.stage-controls button[aria-pressed="true"]>span{background:var(--gold);border-color:#d6c962}.progress-track{position:absolute;left:10%;right:10%;height:1px;top:18px;background:#c9d7cb}.progress-track i{display:block;background:var(--green);height:1px;width:calc(var(--progress)*100%)}.stage-foot{margin:9px auto 0;display:flex;align-items:center;justify-content:center;gap:24px;font-size:12px;color:var(--muted);flex-wrap:wrap}.stage-foot p{margin:0}.stage-foot a{display:inline-flex;align-items:center;gap:9px;min-height:44px;text-decoration:underline;text-underline-offset:5px}.stage-foot svg{width:17px;height:17px}
.try-section{background:white;display:grid;grid-template-columns:.75fr 1.25fr;gap:65px;padding:80px max(32px,calc((100vw - 1156px)/2));scroll-margin-top:24px}.try-heading h2{font:600 clamp(29px,3vw,43px)/1.7 var(--serif);margin:0 0 22px;letter-spacing:-.025em}.try-heading>p{line-height:1.95;margin:0 0 24px}.local-note{font-size:13px;color:var(--muted)}.local-note strong{color:var(--green)}.editor{min-width:0}fieldset{padding:0;margin:0;border:0;min-width:0}legend{font-size:17px;font-weight:700;padding:0 0 16px;width:100%;border-bottom:1px solid var(--line)}.stock-input-row{display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);padding:17px 0}.stock-input-row label{font-size:16px;font-weight:700}.stock-input-row label small{display:block;font-size:12px;font-weight:400;color:var(--muted);margin-top:5px}.stock-input-row>div{display:flex;gap:10px;align-items:center;font-size:14px;flex:none}.stock-input-row input{width:96px;min-height:46px;padding:8px 9px;text-align:right;border:1px solid #9bafa1;border-radius:4px;background:white;font-size:18px;color:var(--ink)}#quantity-hint{font-size:12px;color:var(--muted);margin:12px 0}.recalculate{min-height:48px;background:var(--green);color:white;border:1px solid var(--green);border-radius:5px;padding:10px 20px;font-weight:700;font-size:15px;display:inline-flex;align-items:center;gap:24px}.rule-note{padding:19px 0;margin:8px 0 15px;font-size:13px;color:var(--muted);border-bottom:1px solid var(--line)}.rule-note p{margin:4px 0;line-height:1.9}.rule-note p:last-child{font-weight:700;color:var(--green)}.rule-note p:last-child span{font-size:12px;font-weight:400;display:block}.order-selection legend{border-bottom:0;padding-bottom:5px}.order-row{min-height:65px;display:grid;grid-template-columns:24px 1fr auto;column-gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line);cursor:pointer}.order-row input{grid-row:1/3;accent-color:var(--green);width:20px;height:20px;cursor:pointer}.order-row>span{font-size:15px}.order-row>strong{font-size:19px}.order-row>small{grid-column:2/4;font-size:12px;color:var(--muted)}.order-row:has(input:disabled){color:#6a7c70;cursor:default}.human-check{display:flex;gap:12px;align-items:center;font-size:14px;min-height:54px;margin:15px 0;cursor:pointer}.human-check input{width:20px;height:20px;accent-color:var(--green);flex:none}.download-button{display:flex;align-items:center;justify-content:center;gap:14px;width:100%;min-height:59px;background:var(--green);color:white;border:1px solid var(--green);border-radius:6px;padding:14px;font-size:16px;font-weight:700}.download-button:not(:disabled):hover,.recalculate:not(:disabled):hover{background:#28604c}button:disabled{opacity:.48}.form-feedback{font-size:13px;line-height:1.8;color:var(--muted);min-height:46px;margin:12px 0 0}.form-feedback[data-error="true"]{color:#8d3028}.reset-button{min-height:44px;border:0;border-bottom:1px solid #99afa0;background:transparent;padding:8px 0;color:var(--muted);font-size:13px}.noscript-note{font-size:14px;background:var(--ivory);padding:16px}
.explanation{background:white;padding:0 max(32px,calc((100vw - 1156px)/2)) 70px;scroll-margin-top:24px}.explanation details{border-top:1px solid var(--line);padding-top:17px}.explanation summary{font:600 23px/1.6 var(--serif);min-height:44px;padding:8px 0;cursor:pointer}.explanation ol{display:grid;grid-template-columns:repeat(5,1fr);list-style:none;counter-reset:steps;gap:26px;padding:0;margin:24px 0}.explanation li{counter-increment:steps;border-top:1px solid var(--line);padding-top:17px}.explanation li:before{content:"0" counter(steps);font:19px Georgia,serif;color:#7e9586}.explanation h3{font-size:15px;line-height:1.8;margin:12px 0 10px}.explanation li p,.scope-note{font-size:13px;color:var(--muted);line-height:1.9;margin:0}.scope-note{padding-top:17px;border-top:1px solid var(--line)}
.contact{padding:75px max(32px,calc((100vw - 1156px)/2));display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;background:var(--green);color:var(--ivory)}.contact h2{font:500 clamp(33px,3.8vw,50px)/1.65 var(--serif);margin:0 0 21px}.contact>div>p{font-size:16px;line-height:1.95;margin:0}.contact-actions{text-align:center}.contact-button{display:flex;align-items:center;justify-content:center;gap:25px;min-height:64px;background:var(--ivory);color:var(--green);border-radius:6px;padding:18px;font-size:16px;font-weight:700}.contact-button:hover{background:var(--gold)}.contact-actions>p{font-size:12px!important;margin-top:13px!important}.related-link{display:inline-flex;align-items:center;gap:20px;font-size:13px;min-height:44px;margin-top:25px;border-bottom:1px solid #9bb5a6}.floating-consult{position:fixed;z-index:10;right:max(16px,env(safe-area-inset-right));bottom:max(14px,env(safe-area-inset-bottom));min-height:44px;padding:10px 15px;display:flex;align-items:center;gap:12px;background:var(--green);color:white;border:1px solid #d2ddcf;border-radius:5px;font-size:12px;font-weight:700;box-shadow:0 4px 18px #173d3314}.floating-consult svg{width:17px;height:17px}footer{text-align:center;padding:32px 24px 85px;background:white}footer .brand{font-size:28px}footer p{font-size:12px;color:var(--muted);margin:12px 0 0}footer>a:last-child{display:inline-flex;align-items:center;gap:12px;min-height:44px;font-size:12px;color:var(--muted)}footer svg{width:15px;height:15px}
@media(max-width:900px){.intro{grid-template-columns:1fr;gap:21px}.intro-side{display:flex;justify-content:space-between;align-items:center;gap:24px}.intro h1{font-size:48px}.try-section{gap:36px;grid-template-columns:.85fr 1.15fr;padding-left:27px;padding-right:27px}.stock-input-row{gap:9px}.stock-input-row input{width:78px}.explanation ol{grid-template-columns:repeat(3,1fr)}.contact{gap:30px}.contact-button{font-size:15px;gap:15px}}
@media(max-width:740px){.site-header{height:64px;padding:0 20px;gap:15px}.brand{font-size:28px}.site-header nav{gap:15px;font-size:12px}.header-cta{min-height:44px;padding:9px 12px;gap:7px}.header-cta svg{width:15px;height:15px}.intro{padding:32px 20px 28px;gap:16px}.intro h1{font-size:clamp(30px,8.9vw,48px);margin-bottom:10px;letter-spacing:-.035em}.lead{font-size:19px;line-height:1.8}.intro-side{display:block}.intro-side>p{font-size:15px;margin-bottom:0}.intro-side br{display:none}.scroll-invitation{font-size:12px;gap:13px;margin-top:5px}.story{padding:0 16px}.story-stage{padding:14px 0 76px}.story[data-mode="scroll"] .story-stage{min-height:0;justify-content:flex-start}.story[data-mode="scroll"]{height:calc(100svh + 200svh)}.stage-caption{min-height:97px;margin-bottom:12px}.stage-caption h2{font-size:25px;line-height:1.5;margin-bottom:6px}.stage-number{font-size:11px;margin-bottom:4px}.stage-caption>p:last-child{font-size:13px;line-height:1.8}.ledger{border-radius:9px}.ledger-heading{padding:11px 12px;gap:10px}.ledger-heading strong{font-size:15px}.ledger-heading>span{font-size:11px}.stock-table th,.stock-table td{padding:12px 5px}.stock-table thead th{font-size:12px;white-space:nowrap}.stock-table thead th:first-child{width:29%}.stock-table thead th:nth-child(2){width:19%}.stock-table thead th:nth-child(3){width:27%}.stock-table thead th:nth-child(4){width:25%}.stock-table tbody th{font-size:13px;padding-left:10px;line-height:1.6}.stock-table small{font-size:11px;margin-top:3px}.stock-table td>strong,.proposal-value>strong{font-size:22px;display:block}.stock-table td>span,.proposal-value>span{font-size:12px;margin-left:0}.stock-table .threshold-column strong{font-size:17px}.stock-table .threshold-column>span{font-size:11px;display:block}.stock-table .threshold-column small{font-size:10px}.stock-table .proposal-column small{font-size:10px}.calculation-strip{display:block;padding:11px 12px;min-height:74px}.calculation-strip>p{font-size:12px;line-height:1.7}.review-mark{display:none}.stage-controls{margin:16px 0 0}.stage-controls button{min-height:58px;font-size:12px;gap:4px}.stage-controls button>span{width:29px;height:29px;font-size:18px}.progress-track{top:16px}.stage-foot{gap:4px 16px;font-size:11px;margin-top:3px;line-height:1.7}.stage-foot p{width:100%;text-align:center}.stage-foot a{min-height:36px}.stage-foot svg{width:14px;height:14px}.try-section{display:block;padding:48px 22px;scroll-margin-top:15px}.try-heading h2{font-size:32px;line-height:1.6;margin-bottom:17px}.try-heading>p{font-size:16px}.local-note{font-size:13px!important}.editor{margin-top:30px}.stock-input-row{padding:15px 0;gap:12px}.stock-input-row label{font-size:15px}.stock-input-row label small{font-size:11px}.stock-input-row input{width:82px;font-size:18px}.stock-input-row>div{gap:7px}.rule-note{font-size:13px}.order-row>span{font-size:14px}.download-button{font-size:15px}.explanation{padding:0 22px 46px}.explanation summary{font-size:22px}.explanation ol{grid-template-columns:1fr;gap:25px;margin-top:19px}.explanation h3{font-size:17px;margin:9px 0}.explanation li p{font-size:15px}.scope-note{font-size:13px}.contact{display:block;padding:49px 22px 63px}.contact h2{font-size:34px}.contact-actions{margin-top:28px}.contact-button{font-size:14px;gap:12px;min-height:60px}.related-link{font-size:13px;gap:12px;line-height:1.8}.floating-consult{right:13px;bottom:max(12px,env(safe-area-inset-bottom));padding:9px 12px;font-size:11px}}
@media(max-width:360px){.site-header{padding:0 15px;gap:9px}.brand{font-size:25px}.site-header nav{gap:11px;font-size:11px}.header-cta{font-size:11px;padding:8px 10px}.intro{padding-left:16px;padding-right:16px}.intro h1{font-size:30px}.lead{font-size:17px}.story{padding:0 12px}.stage-caption h2{font-size:23px}.stage-caption>p:last-child{font-size:12px}.stock-table tbody th{font-size:12px;padding-left:7px}.stock-table td>strong,.proposal-value>strong{font-size:20px}.stock-table .threshold-column strong{font-size:16px}.stock-table .threshold-column>span{font-size:10px}.stock-table .threshold-column small{font-size:10px}.calculation-strip>p{font-size:12px}.try-section,.explanation{padding-left:18px;padding-right:18px}.stock-input-row label{font-size:14px}.stock-input-row label small{font-size:10px}.stock-input-row input{width:75px}.stock-input-row>div{gap:5px}.download-button{font-size:14px}}
.story[data-mode="steps"]{height:auto}.story[data-mode="steps"] .story-stage{position:relative;top:auto;min-height:0}.story[data-mode="static"] .stage-controls{display:none}
/* Keep units beside values so the entire ledger fits a normal phone height. */
@media(max-width:740px){.stock-table th,.stock-table td{padding-top:8px;padding-bottom:8px}.stock-table td>strong,.proposal-value>strong{display:inline}.stock-table .threshold-column>strong,.stock-table .threshold-column>span{display:inline}.stock-table td>span,.proposal-value>span{margin-left:2px}.stock-table .threshold-column>span{margin-left:1px;font-size:11px}.stock-table .threshold-column small,.stock-table .proposal-column small{font-size:11px}.stock-table .count-cell strong[data-long="true"]{font-size:14px}.calculation-strip{min-height:63px}.stage-foot a{min-height:44px}.story-stage{padding-bottom:68px}.stock-input-row label small{font-size:12px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}.story{height:auto!important}.story .story-stage{position:relative!important;top:auto!important;min-height:0!important}.story .stage-controls{display:none!important}}