:root{--surface:#ffffff;--border:#dddbd3;--gray-600:#5F5E5A;--gray-300:#D3D1C7;--gray-100:#F1EFE8;--accent:#1a5a9a;--accent-light:#eaf0fb;--radius:10px;--radius-sm:6px;--radius-lg:12px;--font:'Noto Sans JP',sans-serif;}*,*::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;}.intro-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:18px 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