:root{font-family:Inter,Noto Sans JP,Hiragino Kaku Gothic ProN,Yu Gothic,sans-serif;color:#082f5b;background:#fff;font-synthesis:none;text-rendering:optimizeLegibility;--navy: #082f5b;--navy-2: #0b4783;--cyan: #13a8d4;--cyan-dark: #0788bd;--ice: #eef8fd;--ice-2: #f7fbfe;--orange: #f5a623;--ink: #10233f;--muted: #66758a;--line: #cfdeea;--line-strong: #91b5d0;--shadow: 0 10px 30px rgba(8, 47, 91, .08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:#fff}button,input{font:inherit}button{color:inherit}.site-header{position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line);background:#fffffff5;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.site-header:after{content:"";position:absolute;inset:auto 0 -4px;height:4px;background:linear-gradient(90deg,var(--cyan),var(--navy))}.header-inner{width:min(1280px,calc(100% - 48px));height:64px;margin:auto;display:flex;align-items:center;gap:20px;font-size:16px;font-weight:800;letter-spacing:.04em}.brand{display:block;width:160px;height:36px;overflow:hidden}.brand img{display:block;width:182px;height:auto;transform:translate(-11px,-27px)}.header-divider{width:1px;height:26px;background:var(--line-strong)}main{width:min(1280px,calc(100% - 48px));margin:auto;padding:24px 0 44px}.intro h1{margin:0;color:var(--navy);font-size:clamp(30px,3.1vw,40px);line-height:1.18;letter-spacing:-.045em}.intro p{margin:8px 0 16px;color:var(--muted);font-size:13px;line-height:1.7}.calculator-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:24px}.area-panel,.lowest-panel{min-height:148px;border:1px solid var(--line-strong);border-radius:10px;background:#fff}.area-panel{padding:14px 20px 11px;background:linear-gradient(135deg,#fafdff,var(--ice))}.control-label{display:block;margin-bottom:8px;font-size:13px;font-weight:850}.area-control{display:grid;grid-template-columns:minmax(230px,1fr) minmax(310px,1.35fr);gap:18px}.area-input-wrap{display:flex;align-items:center;min-width:0;border:1px solid var(--line-strong);border-radius:7px;background:#fff;overflow:hidden}.area-input-wrap:focus-within{border-color:var(--cyan);outline:3px solid rgba(19,168,212,.15)}.area-input-wrap input{width:100%;min-width:0;height:58px;border:0;outline:0;padding:0 18px;color:var(--navy);background:transparent;text-align:center;font-size:38px;font-weight:900;font-variant-numeric:tabular-nums}.area-input-wrap span{padding-right:18px;font-size:17px;font-weight:850;white-space:nowrap}.preset-list{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;align-items:center}.preset-list button{height:46px;border:1px solid var(--line-strong);border-radius:7px;background:#fff;cursor:pointer;font-size:14px;font-weight:800;transition:.18s ease}.preset-list button:hover{border-color:var(--cyan);color:var(--cyan-dark);transform:translateY(-1px)}.preset-list button.active{border-color:var(--cyan);color:#fff;background:linear-gradient(135deg,var(--cyan),var(--cyan-dark));box-shadow:0 5px 14px #13a8d43d}.area-panel>p{margin:7px 0 0;color:var(--muted);font-size:10px}.lowest-panel{display:grid;grid-template-columns:108px 1fr;align-items:center;gap:16px;padding:14px 24px;box-shadow:var(--shadow)}.winner-mark{position:relative;display:flex;justify-content:center;align-items:baseline;color:var(--orange)}.winner-mark:before,.winner-mark:after{content:"";position:absolute;top:18px;width:34px;height:62px;border:solid var(--orange);opacity:.6}.winner-mark:before{left:2px;border-width:0 0 0 2px;border-radius:50% 0 0 50%;transform:rotate(-18deg)}.winner-mark:after{right:2px;border-width:0 2px 0 0;border-radius:0 50% 50% 0;transform:rotate(18deg)}.winner-mark span{font-size:48px;font-weight:900;line-height:1}.winner-mark small{font-size:14px;font-weight:900}.summary-label{margin:0 0 5px;font-size:11px;font-weight:800}.winner-copy h2{margin:0;font-size:clamp(18px,2vw,25px);letter-spacing:-.02em}.summary-price{margin:5px 0 0;color:var(--cyan-dark);font-size:clamp(32px,3.5vw,44px);font-weight:900;line-height:1;letter-spacing:-.04em;font-variant-numeric:tabular-nums}.summary-price small{margin-left:5px;color:var(--navy);font-size:12px;letter-spacing:0}.summary-area{margin:7px 0 0;color:var(--muted);font-size:10px}.assumption-strip{display:flex;align-items:center;gap:12px;min-height:42px;margin:12px 0 18px;padding:6px 16px;border:1px solid var(--line);border-radius:7px;background:linear-gradient(90deg,var(--ice),#fff);font-size:13px}.assumption-strip strong{font-size:16px}.tool-icon{display:grid;place-items:center;width:28px;height:28px;border:2px solid var(--navy-2);border-radius:50%;color:var(--cyan-dark);font-weight:900}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:8px}.section-heading h2,.performance-intro h2,.methodology h2{margin:0;font-size:22px;letter-spacing:-.035em}.section-heading p{margin:5px 0 0;color:var(--muted);font-size:11px}.section-heading>span{color:var(--muted);font-size:10px}.table-header,.quote-row{display:grid;grid-template-columns:66px 104px minmax(170px,1.2fr) 98px 98px 112px minmax(180px,1fr) 58px;gap:10px;align-items:center}.table-header{min-height:36px;padding:0 13px;border-radius:7px 7px 0 0;color:#fff;background:var(--navy);font-size:9px;font-weight:800}.quote-list{margin:0;padding:0;border:1px solid var(--line);border-top:0;border-radius:0 0 7px 7px;list-style:none;overflow:hidden}.quote-list li{border-bottom:1px solid var(--line);background:#fff}.quote-list li:last-child{border-bottom:0}.quote-list li.featured{position:relative;background:var(--ice-2)}.quote-list li.featured:before{content:"";position:absolute;inset:0 auto 0 0;width:4px;background:var(--cyan)}.quote-row{width:100%;min-height:46px;padding:6px 13px;border:0;background:transparent;text-align:left;cursor:pointer;transition:background .16s ease}.quote-row:hover{background:#13a8d40e}.quote-row:focus-visible{outline:3px solid rgba(19,168,212,.35);outline-offset:-3px}.rank{display:flex;align-items:center;gap:5px}.rank b{display:grid;place-items:center;width:28px;height:28px;border-radius:4px;color:#fff;background:#718096;font-size:15px;font-variant-numeric:tabular-nums}.featured .rank b{background:var(--orange)}.rank em{border:1px solid var(--orange);border-radius:3px;padding:2px 3px;color:#b66e00;background:#fff;font-size:8px;font-style:normal;font-weight:900}.maker,.product-name strong{font-size:12px}.product-name{min-width:0}.product-name strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.product-name small{display:block;margin-top:3px;color:#9a681d;font-size:8px}.cost-cell{color:#35465c;font-size:11px;font-variant-numeric:tabular-nums}.cost-cell small{display:none}.total{color:var(--navy);font-size:14px;font-variant-numeric:tabular-nums;white-space:nowrap}.featured .total{color:var(--cyan-dark)}.price-bar-wrap{position:relative;display:flex;align-items:center;gap:8px}.price-bar-wrap:before{content:"";position:absolute;left:0;right:68px;height:8px;border-radius:99px;background:#e5ebf0}.price-bar{position:relative;z-index:1;display:block;max-width:calc(100% - 68px);height:8px;border-radius:99px;background:#9aa8b8}.featured .price-bar{background:linear-gradient(90deg,var(--orange),var(--cyan))}.price-bar-wrap small{margin-left:auto;font-size:8px;font-variant-numeric:tabular-nums}.detail-action{display:flex;justify-content:flex-end;align-items:center;gap:4px;color:var(--navy-2);font-size:9px;font-weight:800}.detail-action svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}.performance-grid{display:grid;grid-template-columns:repeat(6,1fr);margin:0 12px 8px 74px;border:1px solid #bde3f1;border-radius:7px;background:var(--ice);overflow:hidden}.performance-grid>div{min-width:0;padding:8px;border-right:1px solid #cfe7f0;text-align:center}.performance-grid>div:last-child{border-right:0}.performance-grid span,.performance-grid strong{display:block}.performance-grid span{color:var(--muted);font-size:8px}.performance-grid strong{margin-top:3px;color:var(--navy-2);font-size:14px;font-variant-numeric:tabular-nums}.performance-comparison{display:grid;grid-template-columns:1.4fr 1fr;margin-top:18px;border:1px solid var(--line-strong);border-radius:8px;background:var(--ice-2);overflow:hidden}.performance-intro{padding:16px 20px}.performance-intro p{margin:5px 0 0;color:var(--muted);font-size:11px;line-height:1.6}.ranking-summary{display:grid;grid-template-columns:repeat(6,1fr);margin-top:10px;border-top:1px solid var(--line)}.ranking-summary>div{padding:9px 7px 0;border-right:1px solid var(--line);text-align:center}.ranking-summary>div:last-child{border-right:0}.ranking-summary span{display:block;min-height:28px;color:var(--muted);font-size:8px;line-height:1.4}.ranking-summary strong{display:block;margin-top:3px;color:var(--orange);font-size:18px}.definitions{padding:16px 20px;border-left:1px solid var(--line);background:#fff}.definitions h3{margin:0 0 10px;font-size:14px}.definitions dl{margin:0}.definitions dl>div{display:grid;grid-template-columns:112px 1fr;gap:8px;padding:5px 0}.definitions dt{font-size:9px;font-weight:800}.definitions dd{margin:0;color:var(--muted);font-size:8px;line-height:1.5}.methodology{margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}.methodology h2{font-size:16px}.methodology ul{margin:8px 0 0;padding-left:1.3em;color:var(--muted);font-size:10px;line-height:1.8}@media(max-width:1040px){.calculator-grid{grid-template-columns:1fr}.table-header{display:none}.quote-row{grid-template-columns:56px 104px minmax(150px,1fr) 110px 30px}.cost-cell{display:none}.total{grid-column:4}.price-bar-wrap{grid-column:2 / 5}.detail-action{grid-column:5;grid-row:1 / span 2}.performance-grid{margin-left:70px;grid-template-columns:repeat(3,1fr)}.performance-grid>div:nth-child(3){border-right:0}.performance-grid>div:nth-child(-n+3){border-bottom:1px solid #cfe7f0}}@media(max-width:680px){.header-inner,main{width:min(100% - 28px,1280px)}.header-inner{height:62px;justify-content:center;gap:10px;font-size:12px}.brand{width:132px;height:32px}.brand img{width:150px;height:auto;transform:translate(-9px,-22px)}.header-divider{height:22px}main{padding:28px 0 40px}.intro{text-align:center}.intro h1{font-size:29px}.intro p{margin:10px auto 18px;font-size:11px;line-height:1.7}.calculator-grid{gap:12px}.area-panel{padding:16px}.area-control{grid-template-columns:1fr;gap:10px}.area-input-wrap input{height:62px;font-size:38px}.preset-list button{height:42px;font-size:13px}.area-panel>p{text-align:center}.lowest-panel{grid-template-columns:88px 1fr;gap:8px;min-height:148px;padding:16px;border-color:#f2a836;background:linear-gradient(135deg,#fffaf1,#fff)}.winner-mark span{font-size:46px}.winner-copy h2{font-size:18px}.summary-price{font-size:34px;color:#e98c05}.summary-price small{color:#b66e00;font-size:10px}.assumption-strip{justify-content:center;margin:12px 0 22px;padding:8px}.assumption-strip span,.assumption-strip strong{font-size:12px}.tool-icon{display:none}.section-heading{display:block}.section-heading h2{font-size:21px}.section-heading>span{display:none}.quote-list{border-radius:7px}.quote-list li{margin:0}.quote-row{grid-template-columns:44px minmax(0,1fr) auto 22px;grid-template-rows:auto auto 9px;gap:3px 9px;min-height:78px;padding:10px 9px}.rank{grid-column:1;grid-row:1 / span 2;align-self:start}.rank b{color:var(--navy-2);background:transparent;font-size:19px}.featured .rank b{color:var(--orange);background:transparent}.rank em{display:none}.maker{grid-column:2;grid-row:1;font-size:10px}.product-name{grid-column:2;grid-row:2}.product-name strong{font-size:12px}.product-name small{display:none}.total{grid-column:3;grid-row:1 / span 2;align-self:center;font-size:14px}.detail-action{grid-column:4;grid-row:1 / span 2;align-self:center}.detail-action span{display:none}.price-bar-wrap{grid-column:2 / 4;grid-row:3}.price-bar-wrap:before{right:0;height:7px}.price-bar{max-width:100%;height:7px}.price-bar-wrap small{display:none}.performance-grid{margin:0 8px 10px 52px;grid-template-columns:repeat(2,1fr)}.performance-grid>div,.performance-grid>div:nth-child(3){border-right:1px solid #cfe7f0;border-bottom:1px solid #cfe7f0}.performance-grid>div:nth-child(2n){border-right:0}.performance-grid>div:nth-last-child(-n+2){border-bottom:0}.performance-grid strong{font-size:15px}.performance-comparison{grid-template-columns:1fr}.performance-intro{padding:18px 16px}.performance-intro h2{font-size:19px}.ranking-summary{grid-template-columns:repeat(3,1fr)}.ranking-summary>div{padding-bottom:11px;border-bottom:1px solid var(--line)}.ranking-summary>div:nth-child(3n){border-right:0}.ranking-summary>div:nth-last-child(-n+3){border-bottom:0}.definitions{padding:18px 16px;border-top:1px solid var(--line);border-left:0}.definitions dl>div{grid-template-columns:100px 1fr}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}