:root{--bg:#f0f0ec;--surface:#ffffff;--surface2:#f5f4f0;--surface3:#eceae4;--border:#dddbd3;--border2:#c4c2b8;--text:#1a1a16;--text2:#585850;--text3:#989888;--accent:#1a5a9a;--accent-light:#eaf0fb;--accent-dark:#0f3878;--mono:'DM Mono',monospace;--radius:8px;--radius-lg:14px;}*,*::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;}.mode-toggle{display:flex;background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-lg);padding:4px;gap:4px;margin-bottom:14px;}.mode-btn{flex:1;padding:10px 8px;border:none;background:transparent;border-radius:var(--radius);font-family:inherit;font-size:13px;font-weight:500;color:var(--text2);cursor:pointer;transition:all .15s;text-align:center;}.mode-btn.active{background:var(--surface);color:var(--text);box-shadow:0 1px 3px rgba(0,0,0,.08);font-weight:700;}.mode-btn:hover:not(.active){background:var(--surface3);}.field{display:flex;flex-direction:column;gap:5px;margin-bottom:12px;}.field-label{font-size:12px;font-weight:500;color:var(--text2);}.field input{width:100%;padding:11px 14px;border:1.5px solid var(--border);border-radius:var(--radius);font-family:var(--mono);font-size:18px;font-weight:500;color:var(--text);background:var(--surface);outline:none;transition:border-color .15s;-webkit-appearance:textfield;appearance:textfield;-moz-appearance:textfield;}.field input::-webkit-inner-spin-button,.field input::-webkit-outer-spin-button{-webkit-appearance:none;}.field input:focus{border-color:var(--tantive-main-dark-color);}.field input::-moz-placeholder{color:var(--text3);font-size:15px;font-weight:400;}.field input::placeholder{color:var(--text3);font-size:15px;font-weight:400;}.field input.has-error{border-color:#e05a5a;background:#fff5f5;}.btn-convert{width:100%;padding:12px;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;letter-spacing:.02em;}.btn-convert:hover{filter:brightness(.88);}.btn-convert:active{transform:scale(.99);}.result-fraction-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;}.result-box{background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius);padding:12px;text-align:center;}.result-box-label{font-size:11px;color:var(--text3);margin-bottom:6px;}.result-box-value{font-family:var(--mono);font-size:28px;font-weight:500;color:var(--accent);letter-spacing:-.01em;line-height:1;}.fraction-visual{margin-top:14px;text-align:center;padding:16px;background:var(--surface2);border-radius:var(--radius);}.fraction-visual-label{font-size:11px;color:var(--text3);margin-bottom:10px;}.fraction-visual-expr{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:18px;font-weight:500;color:var(--text);}.fraction-visual-integer{font-size:28px;color:var(--accent);}.fraction-visual-frac{display:inline-flex;flex-direction:column;align-items:center;gap:2px;}.fraction-visual-num{font-size:22px;color:var(--accent);line-height:1;}.fraction-visual-bar{width:100%;height:2px;background:var(--accent);border-radius:1px;}.fraction-visual-den{font-size:22px;color:var(--accent);line-height:1;}.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}}