:root{--bg:#faf8f5;--surface:#ffffff;--surface2:#f5f2ee;--border:#e8e4de;--border2:#d4cfc8;--text:#1e1c18;--text2:#5c5850;--text3:#9c9890;--cinderella:#9b6fa0;--cinderella-light:#f7f0f8;--cinderella-border:#dbc8de;--beauty:#c07a5a;--beauty-light:#fdf3ee;--beauty-border:#eacabb;--standard:#4a7c6a;--standard-light:#eef5f2;--standard-border:#b8d4cc;--mono:'DM Mono',monospace;--radius:10px;--radius-lg:16px;}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}.container__inner{display:flex;justify-content:space-between;gap:1em;max-width:var(--tantive-container-width-pc);margin:50px auto;}.tool-area{flex-grow:1;}h1{font-size:1.5em;margin-bottom:20px;}h2{position:relative;font-size:1.5em;padding:.25em .5em;width:-moz-fit-content;width:fit-content;}h2::before{content:"";position:absolute;top:0;left:0;width:5px;height:100%;border-radius:3px;background-color:var(--tantive-main-dark-color);}.title-section{margin-bottom:50px;}.title-wrap{position:relative;width:-moz-fit-content;width:fit-content;}.title-catch{font-size:.75em;}.card{background:white;border:1px solid var(--tantive-main-dark-color);border-radius:5px;padding:1.5em;margin-bottom:1em;box-shadow:var(--shadow);}.card-head{font-size:11px;font-weight:700;letter-spacing:.07em;color:var(--gray-600);text-transform:uppercase;padding:9px 14px 7px;background:var(--gray-100);border-bottom:1px solid var(--gray-300);}.card-title{font-size:.75em;font-weight:700;text-transform:uppercase;letter-spacing:.08em;margin-bottom:1em;}.input-row{display:flex;align-items:flex-end;gap:12px;}.field{display:flex;flex-direction:column;gap:6px;flex:1;}.field-label{font-size:12px;font-weight:700;color:var(--text2);}.height-input{width:100%;padding:12px 44px 12px 16px;border:1.5px solid var(--tantive-main-dark-color);border-radius:var(--radius);font-family:var(--mono);font-size:22px;font-weight:500;color:var(--text);background:var(--surface);outline:none;transition:border-color .15s;-webkit-appearance:textfield;appearance:textfield;-moz-appearance:textfield;}.height-input::-webkit-inner-spin-button,.height-input::-webkit-outer-spin-button{-webkit-appearance:none;}.height-input:focus{border-color:var(--standard);}.height-input::-moz-placeholder{color:var(--text3);font-size:16px;}.height-input::placeholder{color:var(--text3);font-size:16px;}.input-unit{position:relative;}.input-unit-label{font-size:13px;color:var(--text3);white-space:nowrap;padding-bottom:14px;}.btn-calc{padding:14px 28px;border:none;border-radius:var(--radius);background:var(--tantive-main-dark-color);color:#fff;font-family:inherit;font-size:14px;font-weight:700;cursor:pointer;transition:all .15s;white-space:nowrap;letter-spacing:.02em;}.btn-calc:hover{filter:brightness(.88);}.btn-calc:active{transform:scale(.98);}#results{margin-top:1rem;}.results-grid{display:flex;flex-direction:column;gap:12px;margin-bottom:24px;}.result-card{border-radius:var(--radius-lg);padding:20px 22px;border:1px solid var(--border);}.result-card.cinderella{background:var(--cinderella-light);border-color:var(--cinderella-border);}.result-card.beauty{background:var(--beauty-light);border-color:var(--beauty-border);}.result-card.standard{background:var(--standard-light);border-color:var(--standard-border);}.result-card-header{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:4px;}.result-name{font-size:13px;font-weight:700;}.result-card.cinderella .result-name{color:var(--cinderella);}.result-card.beauty .result-name{color:var(--beauty);}.result-card.standard .result-name{color:var(--standard);}.result-bmi{font-size:11px;font-weight:500;padding:2px 8px;border-radius:20px;}.result-card.cinderella .result-bmi{background:#ecdff0;color:var(--cinderella);}.result-card.beauty .result-bmi{background:#f5ddd2;color:var(--beauty);}.result-card.standard .result-bmi{background:#cce3dc;color:var(--standard);}.result-weight{font-family:var(--mono);font-size:42px;font-weight:500;line-height:1;letter-spacing:-.02em;margin-bottom:2px;}.result-card.cinderella .result-weight{color:var(--cinderella);}.result-card.beauty .result-weight{color:var(--beauty);}.result-card.standard .result-weight{color:var(--standard);}.result-weight-unit{font-size:16px;font-weight:400;margin-left:4px;color:var(--text3);font-family:inherit;}.desc-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;margin-bottom:12px;}.desc-header{display:flex;align-items:center;gap:10px;padding:14px 18px;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none;transition:background .15s;}.desc-header:hover{background:var(--surface2);}.desc-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0;}.desc-card.cinderella .desc-dot{background:var(--cinderella);}.desc-card.beauty .desc-dot{background:var(--beauty);}.desc-card.standard .desc-dot{background:var(--standard);}.desc-title{font-size:13px;font-weight:700;flex:1;color:var(--text);}.desc-card.cinderella .desc-title{color:var(--cinderella);}.desc-card.beauty .desc-title{color:var(--beauty);}.desc-card.standard .desc-title{color:var(--standard);}.desc-arrow{font-size:10px;color:var(--text3);transition:transform .2s;}.desc-arrow.open{transform:rotate(180deg);}.desc-body{display:none;padding:0 18px 16px;font-size:13px;color:var(--text2);line-height:1.8;border-top:1px solid var(--border);}.desc-body.open{display:block;}.desc-body p{margin-top:12px;}.desc-body p:first-child{margin-top:12px;}.warn-box{margin-top:12px;padding:10px 14px;background:#fff8e6;border:1px solid #f5d87a;border-radius:var(--radius);font-size:12px;color:#7a5c00;line-height:1.7;}.disclaimer{font-size:11px;color:var(--text3);margin-top:20px;padding:12px 16px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);line-height:1.7;}.usecase-section{margin-top:1.5em;}.usecase-section li::before{content:"- ";}.related-tools-section{margin-top:1.5em;}.related-tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1em;list-style:none;padding:0;margin:1em 0 0 0;}.related-tools-link{display:flex;height:100%;flex-direction:column;align-items:center;gap:8px;padding:1em;border:1px solid var(--tantive-main-dark-color);border-radius:8px;text-decoration:none;color:inherit;transition:box-shadow .2s,transform .2s;}.related-tools-link:hover{box-shadow:0 4px 12px rgba(0,0,0,.1);transform:translateY(-2px);}.related-tools-emoji{font-size:2rem;}.related-tools-name{font-weight:bold;font-size:1rem;}.related-tools-desc{font-size:.8rem;color:#888;text-align:center;}.ad-area{flex:0 0 200px;}.ad-area-wrap{width:400px;position:sticky;top:100px;}.ad-area-wrap ins{width:300px;height:250px;}@media screen and (max-width:1280px){.container__inner{flex-direction:column-reverse;padding:0 1em}.ad-area{flex:unset}.ad-area-wrap{margin:auto;width:100%}.ad-area-wrap ins{width:300px;height:100px;margin:auto}.ad-moved-area:has(>*){margin-top:1em;margin-bottom:1em}}