:root{--color-bg:#fff;--color-bg-soft:#f5f4f9;--color-border:#e4e2ec;--color-text:#16151c;--color-text-muted:#5b5966;--color-text-faint:#8c8a99;--color-cat-school:#5b34e0;--color-cat-school-bg:#efeaff;--color-cat-tips:#0b7d72;--color-cat-tips-bg:#e2f3f1;--color-cat-update:#a85a11;--color-cat-update-bg:#fbeedf;--cat-fg:var(--color-cat-school);--cat-bg:var(--color-cat-school-bg);--color-accent:#5b34e0;--gradient-accent:linear-gradient(120deg, #5b34e0, #7c4de8);--color-alert:#a4373a;--color-alert-bg:#fbeeee;--max-width:1080px;--article-width:680px;--radius-card:16px;--radius-tag:6px;--font-heading:"Zen Kaku Gothic New", "Noto Sans JP", sans-serif;--font-sans:"Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, system-ui, -apple-system, sans-serif;--font-mono:"IBM Plex Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace}[data-category=school]{--cat-fg:var(--color-cat-school);--cat-bg:var(--color-cat-school-bg)}[data-category=tips]{--cat-fg:var(--color-cat-tips);--cat-bg:var(--color-cat-tips-bg)}[data-category=update]{--cat-fg:var(--color-cat-update);--cat-bg:var(--color-cat-update-bg)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;line-break:strict;overflow-wrap:break-word;margin:0;font-size:16px;font-weight:400;line-height:1.8}h1,h2,h3,h4{font-family:var(--font-heading);font-weight:900}h1,h2,h3{text-wrap:balance;word-break:auto-phrase}a{color:var(--color-accent);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto;display:block}.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}.site-header{border-bottom:1px solid var(--color-border);-webkit-backdrop-filter:blur(10px);z-index:10;background:#ffffffbf;position:sticky;top:0}.site-header__inner{max-width:var(--max-width);justify-content:space-between;align-items:center;gap:12px;margin:0 auto;padding:14px 20px;display:flex}.site-logo{flex-direction:column;line-height:1.2;display:flex}.site-logo__title{font-family:var(--font-heading);color:var(--color-text);letter-spacing:.02em;font-size:1.25rem;font-weight:900}.site-logo__title .accent{background:var(--gradient-accent);color:#0000;background-clip:text}.site-logo__sub{letter-spacing:.12em;color:var(--color-text-muted);margin-top:2px;font-size:.62rem;font-weight:700}.site-nav{flex-wrap:wrap;gap:16px;font-size:.9rem;display:flex}.site-nav a{color:var(--color-text-muted);font-weight:700}.site-nav a:hover{color:var(--color-accent)}.site-footer{border-top:1px solid var(--color-border);background:var(--color-bg-soft);margin-top:64px;padding:32px 0}.site-footer__inner{max-width:var(--max-width);text-align:center;color:var(--color-text-muted);margin:0 auto;padding:0 20px;font-size:.85rem}.site-footer__desc{max-width:560px;margin:0 auto 20px;line-height:1.7}.site-footer__nav{flex-wrap:wrap;justify-content:center;gap:16px;margin-bottom:16px;display:flex}.site-footer__nav a{color:var(--color-text-muted)}.site-footer__nav a:hover{color:var(--color-accent)}main{min-height:60vh;padding:32px 0 48px}.breadcrumbs{color:var(--color-text-faint);margin:0 0 16px;font-size:12px;line-height:1.6}.breadcrumbs__list{flex-wrap:wrap;align-items:center;gap:2px 6px;margin:0;padding:0;list-style:none;display:flex}.breadcrumbs__item{align-items:center;gap:6px;min-width:0;display:flex}.breadcrumbs__item+.breadcrumbs__item:before{content:"›";color:var(--color-text-faint);flex:none}.breadcrumbs a{color:var(--color-text-muted)}.breadcrumbs a:hover{color:var(--color-accent)}.breadcrumbs__item--current span{text-overflow:ellipsis;white-space:nowrap;max-width:100%;overflow:hidden}.page-title{margin:0 0 24px;font-size:1.5rem}.page-title__count{font-family:var(--font-mono);color:var(--color-text-faint);white-space:nowrap;margin-left:10px;font-size:12px;font-weight:600}.category-lead{color:var(--color-text-muted);margin:-12px 0 24px;font-size:.95rem}.category-empty{color:var(--color-text-muted);padding:24px 0;font-size:.9rem}.category-switch{border-top:1px solid var(--color-border);margin-top:44px;padding-top:24px}.category-switch__title{font-family:var(--font-heading);margin:0 0 14px;font-size:16px;font-weight:700}.category-switch__list{gap:12px;margin:0 0 16px;padding:0;list-style:none;display:grid}.category-switch__link{border:1px solid var(--color-border);border-left:4px solid var(--cat-fg);color:var(--color-text);border-radius:10px;padding:14px 16px;display:block}.category-switch__link:hover{border-color:var(--cat-fg);background:var(--cat-bg);text-decoration:none}.category-switch__head{align-items:baseline;gap:8px;display:flex}.category-switch__name{font-family:var(--font-heading);font-size:15px;font-weight:700}.category-switch__count{font-family:var(--font-mono);color:var(--cat-fg);white-space:nowrap;font-size:12px}.category-switch__desc{color:var(--color-text-muted);margin-top:4px;font-size:13px;line-height:1.7;display:block}.category-switch__all{margin:0;font-size:13px;font-weight:700}.main--flush{padding:0}.home-section{background:var(--color-bg);padding:36px 0}.home-section--alt{background:var(--color-bg-soft)}.section-head{margin:0 0 18px}.section-head__top{align-items:baseline;gap:10px;display:flex}.section-head__title{margin:0;font-size:20px;font-weight:700;line-height:1.4}.section-head__count{font-family:var(--font-mono);color:var(--color-text-faint);white-space:nowrap;font-size:12px}.section-head__lead{color:var(--color-text-muted);margin:6px 0 0;font-size:13px;line-height:1.7}.section-more{margin:16px 0 0}.section-more__link{color:var(--cat-fg);align-items:center;gap:6px;font-size:13px;font-weight:700;display:inline-flex}.hero{padding:36px 0 32px}.hero__inner{max-width:640px}.hero__eyebrow{font-family:var(--font-mono);letter-spacing:.18em;color:var(--color-cat-school);margin:0 0 14px;font-size:11px;font-weight:600;display:block}.hero__title{margin:0 0 12px;font-size:27px;line-height:1.45}.hero__lead{color:var(--color-text-muted);margin:0;font-size:13px;line-height:1.7}.cat-tiles{grid-template-columns:1fr;gap:10px;margin:0;padding:0;list-style:none;display:grid}.cat-tile{background:var(--color-bg);border:1px solid var(--color-border);height:100%;color:var(--color-text);border-radius:10px;align-items:center;gap:12px;padding:12px 14px;transition:border-color .15s,box-shadow .15s;display:flex}.cat-tile:hover{border-color:var(--cat-fg);text-decoration:none;box-shadow:0 4px 14px #16151c12}.cat-tile__num{background:var(--cat-bg);width:38px;height:38px;color:var(--cat-fg);font-family:var(--font-mono);border-radius:9px;flex:none;justify-content:center;align-items:center;font-size:13px;font-weight:600;display:flex}.cat-tile__body{flex-direction:column;flex:auto;gap:2px;min-width:0;display:flex}.cat-tile__name{font-size:14px;font-weight:700;line-height:1.4}.cat-tile__desc{color:var(--color-text-faint);font-size:12px;line-height:1.5}.cat-tile__arrow{color:var(--color-text-faint);flex:none;font-size:14px}.snapshot__note{color:var(--color-text-faint);margin:0 0 18px;font-size:12px;line-height:1.7}.snapshot__list{grid-template-columns:1fr;gap:10px;margin:0;padding:0;list-style:none;display:grid}.snapshot__row{background:var(--color-bg);border:1px solid var(--color-border);border-radius:10px;flex-direction:column;height:100%;padding:14px 16px;display:flex}.snapshot__name{margin:0;font-size:15px;font-weight:700;line-height:1.5}.snapshot__price{flex-wrap:wrap;align-items:baseline;gap:0 4px;margin:8px 0 0;display:flex}.snapshot__price-prefix,.snapshot__price-unit{color:var(--color-text-muted);font-size:12px;line-height:1.6}.snapshot__price-value{font-family:var(--font-mono);font-size:22px;font-weight:600;line-height:1.3}.snapshot__price-note{color:var(--color-text-faint);margin:4px 0 0;font-size:12px;line-height:1.6}.snapshot__tag{background:var(--color-bg-soft);color:var(--color-text-muted);border-radius:999px;align-self:flex-start;margin:12px 0 0;padding:3px 10px;font-size:11px;font-weight:700;line-height:1.6}.snapshot__tag--ineligible{background:var(--color-alert-bg);color:var(--color-alert)}.snapshot__tag-detail{color:var(--color-text-faint);margin:6px 0 0;font-size:11px;line-height:1.6}.snapshot__source{border-top:1px solid var(--color-border);color:var(--color-text-faint);flex-wrap:wrap;align-items:baseline;gap:4px 10px;margin:auto 0 0;padding-top:12px;font-size:11px;line-height:1.7;display:flex}.snapshot__checked{white-space:nowrap}.snapshot__article-link{white-space:nowrap;margin-left:auto;font-size:11px;font-weight:700}.post-list{grid-template-columns:1fr;gap:10px;margin:0;padding:0;list-style:none;display:grid}.post-card{background:var(--color-bg);border:1px solid var(--color-border);border-left:4px solid var(--cat-fg);height:100%;color:var(--color-text);border-radius:10px;flex-direction:column;padding:13px 15px;transition:border-color .15s,box-shadow .15s;display:flex}.post-card:hover{border-color:var(--color-border);border-left-color:var(--cat-fg);text-decoration:none;box-shadow:0 4px 14px #16151c12}.post-card:hover .post-card__title{color:var(--cat-fg)}.post-card__head{align-items:center;gap:6px;margin-bottom:8px;display:flex}.post-card__category{background:var(--cat-bg);color:var(--cat-fg);white-space:nowrap;border-radius:999px;padding:2px 9px;font-size:10.5px;font-weight:700;line-height:1.6}.post-card__pr{border:1px solid var(--color-border);color:var(--color-text-faint);white-space:nowrap;border-radius:4px;padding:1px 7px;font-size:10px;font-weight:700;line-height:1.6}.post-card__date{font-family:var(--font-mono);color:var(--color-text-faint);white-space:nowrap;margin-left:auto;font-size:11px}.post-card__title{color:inherit;margin:0 0 6px;font-size:15.5px;font-weight:700;line-height:1.5;transition:color .15s}.post-card__excerpt{color:var(--color-text-muted);-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:12.5px;line-height:1.7;display:-webkit-box;overflow:hidden}.policy-box{background:var(--color-bg);border:1px solid var(--color-border);color:var(--color-text-muted);border-radius:10px;padding:18px 20px;font-size:12.5px;line-height:1.8}.policy-box strong{color:var(--color-text)}.article-wrap{max-width:var(--article-width);margin:0 auto}.article-header{margin-bottom:24px}.article-header__category{color:var(--cat-fg);background:var(--cat-bg);border-radius:999px;margin-bottom:12px;padding:3px 12px;font-size:.75rem;font-weight:700;display:inline-block}.article-header__title{margin:0 0 12px;font-size:1.6rem;line-height:1.5}.article-header__meta{color:var(--color-text-muted);font-size:.85rem}.article-body{font-size:1rem;line-height:1.75}.article-body h2{margin:2.2em 0 .9em;padding-top:.6em;font-size:1.3rem;position:relative}.article-body h2:before{content:"";background:var(--gradient-accent);border-radius:999px;width:44px;height:6px;margin-bottom:12px;display:block}.article-body h3{margin:1.8em 0 .6em;font-size:1.1rem}.article-body p{margin:0 0 1.2em}.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em}.article-body li{margin-bottom:.4em}.article-body a{text-decoration:underline}.article-body table{border-collapse:collapse;width:100%;margin:0 0 1.6em;font-size:.92rem}.article-body th,.article-body td{border:1px solid var(--color-border);text-align:left;padding:10px 12px}.article-body th{background:var(--color-bg-soft);font-weight:700}.article-footer{border-top:1px solid var(--color-border);margin-top:40px;padding-top:24px}.affiliate-disclosure{background:var(--color-bg-soft);border:1px solid var(--color-border);border-radius:var(--radius-tag);color:var(--color-text-muted);margin-bottom:28px;padding:12px 16px;font-size:.82rem}.post-nav{flex-wrap:wrap;gap:12px;margin:0 0 28px;display:flex}.post-nav__link{border:1px solid var(--color-border);min-width:0;color:var(--color-text);border-radius:10px;flex:240px;padding:12px 14px}.post-nav__link:hover{border-color:var(--color-accent);background:var(--color-bg-soft);text-decoration:none}.post-nav__link--next{text-align:right;margin-left:auto}.post-nav__label{color:var(--color-text-faint);margin-bottom:4px;font-size:12px;font-weight:700;display:block}.post-nav__title{-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;font-size:14px;font-weight:700;line-height:1.6;display:-webkit-box;overflow:hidden}.article-back{flex-wrap:wrap;align-items:center;gap:10px 18px;display:flex}.article-back__primary{background:var(--cat-bg);color:var(--cat-fg);border-radius:999px;align-items:center;gap:8px;padding:11px 18px;font-size:14px;font-weight:700;display:inline-flex}.article-back__primary:hover{box-shadow:inset 0 0 0 1px var(--cat-fg);text-decoration:none}.article-back__secondary{color:var(--color-text-muted);font-size:13px}.article-back__secondary:hover{color:var(--color-accent)}.back-link{margin-top:8px;font-size:.9rem;display:inline-block}.static-page{max-width:var(--article-width);font-size:.98rem}.static-page h2{margin:1.8em 0 .6em;font-size:1.2rem}.static-page p{margin:0 0 1.2em}.static-page ul{margin:0 0 1.2em;padding-left:1.4em}.contact-form-wrap{margin:1.6em 0}.contact-form-frame{border:1px solid var(--color-border);border-radius:var(--radius-card);width:100%;min-height:1200px}.contact-form-fallback{color:var(--color-text-muted);font-size:.85rem}@media (width>=600px){.page-title{font-size:1.8rem}.article-header__title{font-size:2rem}}@media (width>=700px){.cat-tiles{grid-template-columns:repeat(3,1fr)}.snapshot__list,.post-list,.category-switch__list{grid-template-columns:repeat(2,1fr)}}@media (width>=1000px){.post-list--3{grid-template-columns:repeat(3,1fr)}.home-section{padding:44px 0}}