:root{color-scheme:light;--color-bg: #ffffff;--color-bg-soft: #f6faf9;--color-surface: #ffffff;--color-surface-accent: #e8f7f4;--color-border: #d9e8e5;--color-text: #243331;--color-text-muted: #60706d;--color-primary: #008f86;--color-primary-strong: #00746d;--color-primary-soft: #dff5f2;--color-warning-soft: #fff7dc;--shadow-card: 0 10px 28px rgb(23 74 70 / .08);--radius-card: 16px;--radius-control: 12px;--space-page: clamp(1rem, 4vw, 2rem);--container-width: 1040px;--font-base: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*{box-sizing:border-box}html{min-width:320px;background:var(--color-bg-soft);font-family:var(--font-base);color:var(--color-text)}body{margin:0;background:radial-gradient(circle at top left,var(--color-primary-soft),transparent 30rem),var(--color-bg-soft);line-height:1.7}a{color:var(--color-primary-strong);text-decoration:none}a:hover{text-decoration:underline}.site-header{background:#ffffffe6;border-bottom:1px solid var(--color-border)}.site-header__inner,.site-footer__inner,.site-main{width:min(100%,var(--container-width));margin:0 auto;padding-inline:var(--space-page)}.site-header__inner{display:flex;flex-direction:column;gap:.85rem;padding-block:1rem}.site-header__brand{display:inline-flex;align-items:center;gap:.6rem;width:fit-content;color:var(--color-text);font-size:1.05rem;font-weight:800;text-decoration:none}.site-header__logo{display:inline-grid;width:2.2rem;height:2.2rem;place-items:center;border-radius:.75rem;background:var(--color-primary);color:#fff}.site-header__nav,.site-footer__nav{display:flex;flex-wrap:wrap;gap:.55rem .75rem;font-size:.92rem}.site-header__nav a,.site-footer__nav a{display:inline-flex;align-items:center;min-height:2.4rem}.site-main{display:grid;gap:1.5rem;padding-block:2rem 3rem}.hero{display:grid;gap:1.2rem;padding:clamp(1.5rem,5vw,3rem);border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface);box-shadow:var(--shadow-card)}.hero__content{display:grid;gap:1rem}.hero__image,.page-visual img,.category-card__image,.article-card__image{display:block;width:100%;height:auto;object-fit:cover}.hero__image{aspect-ratio:16 / 9;overflow:hidden;border-radius:12px;box-shadow:0 16px 36px #174a4621}.hero+.search-panel{margin-top:.25rem}.hero__label{width:fit-content;margin:0;padding:.25rem .65rem;border-radius:999px;background:var(--color-primary-soft);color:var(--color-primary-strong);font-size:.85rem;font-weight:700}.hero h1,.page-section h1{margin:0;font-size:clamp(2rem,9vw,3.5rem);line-height:1.15;letter-spacing:0}.hero p,.page-section p{margin:0;color:var(--color-text-muted)}.hero__actions{display:flex;flex-wrap:wrap;gap:.8rem}.button{display:inline-flex;align-items:center;justify-content:center;min-height:3rem;padding:.75rem 1.1rem;border-radius:var(--radius-control);background:var(--color-primary);color:#fff;font-weight:700;text-decoration:none}.button:hover{background:var(--color-primary-strong);text-decoration:none}.button:focus-visible,.tool-card:focus-visible,.category-card:focus-visible,.purpose-card:focus-visible,.search-result:focus-visible,.article-card:focus-visible{outline:3px solid var(--color-primary-soft);outline-offset:3px}.button--secondary{border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-primary-strong)}.button--secondary:hover{background:var(--color-primary-soft)}.card-grid{display:grid;gap:1rem;margin-top:1.25rem}.card{padding:1.25rem;border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface);box-shadow:var(--shadow-card)}.card h2,.card h3{margin:0 0 .45rem;font-size:1.2rem}.card p{margin:0;color:var(--color-text-muted)}.section-block{display:grid;gap:1rem}.section-heading{display:grid;gap:.25rem}.section-heading h2{margin:0;font-size:clamp(1.45rem,6vw,2rem);line-height:1.25}.section-heading__label{margin:0;color:var(--color-primary-strong);font-size:.9rem;font-weight:800}.search-panel{display:grid;gap:.8rem;padding:clamp(1.2rem,4vw,1.6rem);border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface);box-shadow:var(--shadow-card)}.search-panel__label{font-weight:800}.search-panel__input{width:100%;min-height:3.3rem;padding:.8rem 1rem;border:1px solid var(--color-border);border-radius:var(--radius-control);background:var(--color-bg);color:var(--color-text);font:inherit}.search-panel__input:focus{border-color:var(--color-primary);outline:3px solid var(--color-primary-soft)}.search-panel__results{display:grid;gap:.6rem}.search-panel__empty{margin:0;color:var(--color-text-muted);font-size:.92rem}.search-result,.tool-card,.category-card,.purpose-card,.article-card{display:grid;gap:.4rem;padding:1rem;border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface);color:var(--color-text);text-decoration:none;box-shadow:var(--shadow-card);transition:border-color .16s ease,transform .16s ease}.search-result:hover,.tool-card:hover,.category-card:hover,.purpose-card:hover,.article-card:hover{border-color:var(--color-primary);text-decoration:none;transform:translateY(-1px)}.category-card,.article-card{overflow:hidden;padding:0}.category-card__image,.article-card__image{aspect-ratio:16 / 9}.category-card__count,.article-card__label{margin-top:1rem}.category-card__count,.category-card h3,.category-card p,.article-card__label,.article-card h3,.article-card p{margin-inline:1rem}.category-card p,.article-card p{margin-bottom:1rem}.search-result span,.tool-card h3,.category-card h3,.purpose-card span,.article-card h3{margin:0;font-size:1.05rem;font-weight:800}.search-result small,.purpose-card small{color:var(--color-text-muted);font-size:.9rem}.tool-list,.category-grid,.purpose-grid,.article-list{display:grid;gap:.9rem}.tool-card__status,.category-card__count{width:fit-content;padding:.2rem .55rem;border-radius:999px;background:var(--color-primary-soft);color:var(--color-primary-strong);font-size:.78rem;font-weight:800}.tool-card h3,.category-card h3,.article-card h3{margin:0}.tool-card p,.category-card p,.article-card p{margin:0;color:var(--color-text-muted)}.article-card__label{width:fit-content;padding:.2rem .55rem;border-radius:999px;background:var(--color-primary-soft);color:var(--color-primary-strong);font-size:.78rem;font-weight:800}.article-detail,.category-guide{display:grid;gap:1rem}.category-guide__intro,.article-action-panel{display:grid;gap:.85rem;padding:clamp(1.25rem,4vw,2rem);border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface);box-shadow:var(--shadow-card)}.category-guide__intro h2,.article-action-panel h2{margin:0;font-size:clamp(1.45rem,6vw,2rem);line-height:1.25}.category-guide__intro p,.guide-step p,.article-action-panel p{margin:0}.guide-step-list{display:grid;gap:.9rem}.guide-step{display:grid;gap:.65rem;padding:1rem;border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface);box-shadow:var(--shadow-card)}.guide-step__label{width:fit-content;padding:.2rem .55rem;border-radius:999px;background:var(--color-primary-soft);color:var(--color-primary-strong);font-size:.78rem;font-weight:800}.guide-step h3{margin:0;font-size:1.08rem;line-height:1.35}.guide-step__links{display:flex;flex-wrap:wrap;gap:.5rem}.mini-link{display:inline-flex;align-items:center;min-height:2.5rem;padding:.45rem .7rem;border:1px solid var(--color-border);border-radius:999px;background:var(--color-surface);color:var(--color-primary-strong);font-size:.9rem;font-weight:800;text-decoration:none}.mini-link:hover{border-color:var(--color-primary);background:var(--color-primary-soft);text-decoration:none}.mini-link--primary{border-color:var(--color-primary);background:var(--color-primary);color:#fff}.mini-link--primary:hover{background:var(--color-primary-strong)}.check-list{display:grid;gap:.5rem;padding:0;margin:0;list-style:none}.check-list li{position:relative;padding-left:1.35rem}.check-list li:before{position:absolute;left:0;color:var(--color-primary-strong);font-weight:900;content:"✓"}.article-action-panel__cta{display:grid;gap:.6rem}.article-action-panel__title{color:var(--color-text);font-weight:800}.page-visual{overflow:hidden;margin:0;border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface);box-shadow:var(--shadow-card)}.page-visual img{aspect-ratio:16 / 9}.page-visual--compact img{max-height:16rem}.page-section{display:grid;gap:1rem;padding:clamp(1.35rem,5vw,2rem);border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface);box-shadow:var(--shadow-card)}.notice{padding:1rem;border:1px solid #f0dfab;border-radius:var(--radius-control);background:var(--color-warning-soft);color:#5c4a15}.site-footer{border-top:1px solid var(--color-border);background:var(--color-surface)}.site-footer__inner{display:grid;gap:.8rem;padding-block:1.5rem}.site-footer__name{margin:0;font-weight:800}.site-footer__note{margin:0;color:var(--color-text-muted);font-size:.9rem}.breadcrumbs{color:var(--color-text-muted);font-size:.88rem}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:.35rem;padding:0;margin:0;list-style:none}.breadcrumbs li:not(:last-child):after{margin-left:.35rem;color:var(--color-text-muted);content:">"}.calculator-shell,.content-section{display:grid;gap:1rem;padding:clamp(1.25rem,4vw,2rem);border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface);box-shadow:var(--shadow-card)}.calculator-shell__header{display:grid;gap:.5rem}.calculator-shell h1,.content-section h2{margin:0;line-height:1.2}.calculator-shell h1{font-size:clamp(1.8rem,8vw,3rem)}.calculator-shell p,.content-section p{margin:0}.calculator-form{display:grid;gap:1rem;max-width:42rem}.calculator-form label{display:grid;gap:.4rem;font-weight:800}.calculator-form input,.calculator-form select{width:100%;min-height:3.1rem;padding:.75rem .85rem;border:1px solid var(--color-border);border-radius:var(--radius-control);background:var(--color-bg);color:var(--color-text);font:inherit}.calculator-form input:focus,.calculator-form select:focus{border-color:var(--color-primary);outline:3px solid var(--color-primary-soft)}.input-with-unit{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:.6rem;color:var(--color-text-muted);font-weight:700}.form-error{min-height:1.5rem;margin:0;color:#b42318;font-size:.92rem;font-weight:700}.result-card{display:grid;gap:.5rem;padding:clamp(1.25rem,4vw,1.8rem);border:1px solid #b7e8df;border-radius:var(--radius-card);background:var(--color-surface-accent)}.result-card[hidden]{display:none}.result-card__label{color:var(--color-primary-strong);font-weight:800}.result-card__value{color:var(--color-text);font-size:clamp(2rem,10vw,3rem);font-weight:900;line-height:1.1}.result-card__comment{color:var(--color-text-muted)}.result-card__next{margin-top:.25rem;font-weight:800}.faq-list{display:grid;gap:.75rem}.faq-item{padding:1rem;border:1px solid var(--color-border);border-radius:var(--radius-control);background:var(--color-surface)}.faq-item summary{cursor:pointer;font-weight:800}.faq-item p{margin:.75rem 0 0;color:var(--color-text-muted)}.ad-slot{display:grid;min-height:5rem;place-items:center;border:1px dashed var(--color-border);border-radius:var(--radius-card);background:var(--color-bg-soft);color:var(--color-text-muted);font-size:.9rem;font-weight:800}.affiliate-box{padding:1rem;border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface)}.quiz-box{display:grid;gap:1rem;padding:clamp(1.25rem,4vw,2rem);border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface);box-shadow:var(--shadow-card)}.quiz-box__items{display:grid;gap:1rem}.quiz-question{display:grid;gap:.75rem;padding:1rem;border:1px solid var(--color-border);border-radius:var(--radius-control);background:var(--color-bg-soft)}.quiz-question legend{padding:0;font-weight:800}.quiz-question__options{display:grid;gap:.6rem}.quiz-option{min-height:3rem;padding:.7rem .85rem;border:1px solid var(--color-border);border-radius:var(--radius-control);background:var(--color-surface);color:var(--color-text);font:inherit;font-weight:700;text-align:left;cursor:pointer}.quiz-option:hover{border-color:var(--color-primary)}.quiz-option:focus-visible{outline:3px solid var(--color-primary-soft);outline-offset:2px}.quiz-option[aria-pressed=true]{border-color:var(--color-primary);background:var(--color-primary-soft)}.quiz-question__feedback{min-height:1.5rem;margin:0;color:var(--color-text-muted);font-size:.92rem}@media(min-width:720px){.site-header__inner{flex-direction:row;align-items:center;justify-content:space-between}.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.hero{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);align-items:center}.tool-list,.category-grid,.purpose-grid,.article-list,.guide-step-list{grid-template-columns:repeat(3,minmax(0,1fr))}.article-action-panel{grid-template-columns:minmax(0,1fr) minmax(16rem,.55fr);align-items:start}.quiz-question__options{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:480px){.hero__actions{display:grid}.button{width:100%}.site-header__nav,.site-footer__nav{gap:.35rem .65rem}}