:root{--ink:#423528;--muted:#716556;--paper:#fffdf7;--cream:#fff4d9;--amber:#a86112;--green:#176b58;--line:#e6d7bb}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:60px}.sbm-body{margin:0;background:var(--paper);color:var(--ink);font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;font-size:16px;line-height:1.9;overflow-wrap:anywhere}a{color:inherit}img{max-width:100%;height:auto}button,a,summary{-webkit-tap-highlight-color:#ca9b4933}a:focus-visible,summary:focus-visible{outline:3px solid #176b58;outline-offset:5px}.sbm-shell{width:min(1120px,calc(100% - 48px));margin-inline:auto}.sbm-header{border-bottom:1px solid var(--line);background:#fffdf9}.sbm-header-row{display:flex;justify-content:space-between;gap:20px;align-items:center;min-height:90px}.sbm-brand{display:block;text-decoration:none;font-weight:800;font-size:22px;letter-spacing:.05em}.sbm-brand span{display:block;font-size:11px;letter-spacing:.1em;font-weight:500;color:var(--muted)}.sbm-header-link{min-height:44px;display:flex;align-items:center;font-size:14px;text-decoration:none;font-weight:700}.sbm-skip{position:absolute;left:12px;top:-100px;padding:10px;background:white;z-index:100}.sbm-skip:focus{top:10px}.sbm-hero{background:linear-gradient(140deg,#fff9e8,#fff0d0);padding:22px 0 70px}.sbm-breadcrumb{display:flex;gap:10px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-bottom:35px}.sbm-breadcrumb a{min-height:44px;display:inline-flex;align-items:center}.sbm-breadcrumb span{align-self:center}.sbm-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}.sbm-eyebrow{font-size:13px;letter-spacing:.08em;color:var(--amber);font-weight:700}.sbm-hero h1,.sbm-library h1{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(38px,5.2vw,66px);line-height:1.5;letter-spacing:.045em;margin:14px 0 24px}.sbm-lede{font-size:21px;font-weight:700}.sbm-hero-copy>p:not(.sbm-eyebrow):not(.sbm-lede):not(.sbm-reading-note){line-height:2.2}.sbm-button{display:inline-flex;align-items:center;justify-content:center;gap:24px;padding:15px 24px;min-height:54px;border-radius:12px;text-decoration:none;font-weight:700;font-size:16px;border:1px solid transparent}.sbm-button:hover{filter:brightness(.96)}.sbm-amber{background:var(--amber);color:white;box-shadow:0 8px 24px #995e1620}.sbm-green{background:var(--green);color:white}.sbm-outline{background:white;border-color:var(--line)}.sbm-reading-note{font-size:12px;color:var(--muted);margin:12px 0}.sbm-cover{display:block;position:relative;max-width:380px;margin-inline:auto;box-shadow:12px 14px 0 #ead6ab,0 15px 40px #70501c28;border:8px solid white;transform:rotate(2deg);text-decoration:none}.sbm-cover img{display:block;width:100%}.sbm-cover span{display:block;background:white;text-align:center;font-size:12px;font-weight:700;padding:7px}.sbm-reader{padding-bottom:30px;background:#eee9df;scroll-margin-top:0}.sbm-reader-toolbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;gap:12px;align-items:center;min-height:48px;padding:10px max(18px,calc((100vw - 720px)/2));background:#fffdf7f5;border-block:1px solid var(--line);font-size:13px;font-weight:700;backdrop-filter:blur(8px)}.sbm-reader-help{text-align:center;font-size:12px;color:var(--muted);padding:12px}.sbm-page{max-width:720px;margin:0 auto 40px;background:var(--paper);box-shadow:0 4px 25px #4d3b2010}.sbm-page>img{display:block;width:100%;height:auto}.sbm-page figcaption{display:flex;justify-content:space-between;gap:14px;padding:12px 18px;font-size:12px;color:var(--muted)}.sbm-transcript{border-top:1px solid #eadfc9;padding-inline:18px;font-size:14px}.sbm-transcript summary{min-height:44px;cursor:pointer;display:list-item;padding:9px 0;color:#655847}.sbm-transcript p{margin:0 0 12px}.sbm-end-mark{text-align:center;letter-spacing:.3em;color:#79684f;margin:50px 0 20px}.sbm-after{text-align:center;padding-block:80px}.sbm-after h2{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(26px,3.5vw,40px);line-height:1.7}.sbm-after>p:not(.sbm-eyebrow):not(.sbm-fiction-note){line-height:2.1}.sbm-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-block:30px}.sbm-fiction-note{font-size:12px;color:var(--muted);max-width:720px;margin:40px auto 0}.sbm-school-wrap{background:var(--cream);padding-block:60px}.sbm-school-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px}.sbm-school-grid h2{font-size:26px;line-height:1.5}.sbm-school-grid address{font-style:normal;line-height:1.8}.sbm-school-details>div{margin-bottom:16px}.sbm-school-details dt{font-size:12px;font-weight:700;color:var(--muted)}.sbm-school-details dd{margin:0}.sbm-text-link{display:inline-flex;align-items:center;min-height:44px;font-weight:700;font-size:14px}.sbm-price-card{padding:26px 30px;background:white;border:1px solid var(--line);border-radius:18px}.sbm-price-card h3{margin:0;font-size:21px}.sbm-price-card>p{font-size:13px;color:var(--muted)}.sbm-price-card dl>div{display:flex;justify-content:space-between;gap:15px;border-bottom:1px solid #e9e0cf;padding-block:14px}.sbm-price-card dd{margin:0;white-space:nowrap;font-weight:700}.sbm-small{font-size:12px}.sbm-faq{padding-block:60px}.sbm-faq h2{font-size:24px;margin-bottom:25px}.sbm-faq details{border-bottom:1px solid var(--line)}.sbm-faq summary{padding:18px 8px;min-height:54px;font-weight:700;cursor:pointer}.sbm-faq details p{padding:0 8px 14px;color:var(--muted)}.sbm-footer-links{display:flex;justify-content:center;flex-wrap:wrap;gap:12px 30px;padding-bottom:40px}.sbm-footer-links a{display:inline-flex;align-items:center;min-height:44px;font-size:14px}.sbm-footer{display:flex;justify-content:space-between;gap:20px;padding:24px max(24px,calc((100vw - 1120px)/2));background:#46382a;color:#fff8e8;font-size:12px}.sbm-footer a{min-height:44px;display:inline-flex;align-items:center}.sbm-footer span{align-self:center}.sbm-mobile-cta{display:none}.sbm-library{padding-block:65px 100px}.sbm-catalog{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,380px),1fr));gap:30px;margin-top:40px}.sbm-work-card{border:1px solid var(--line);border-radius:18px;overflow:hidden;max-width:720px;background:white}.sbm-work-card a{text-decoration:none}.sbm-work-card img{display:block;width:100%}.sbm-work-card a>div{padding:24px}.sbm-work-card h2{font-size:25px}.sbm-work-card strong{display:inline-flex;align-items:center;min-height:44px;color:var(--green)}
@media(max-width:767px){.sbm-shell{width:calc(100% - 36px)}.sbm-header-row{min-height:72px;gap:12px}.sbm-brand{font-size:18px}.sbm-brand span{font-size:10px;letter-spacing:0}.sbm-header-link{font-size:12px;white-space:nowrap}.sbm-hero{padding:12px 0 45px}.sbm-breadcrumb{font-size:11px;margin-bottom:14px;gap:7px}.sbm-hero-grid{grid-template-columns:1fr;gap:28px}.sbm-hero h1{font-size:42px;margin-top:10px}.sbm-lede{font-size:18px}.sbm-hero-copy{padding-bottom:8px}.sbm-cover{max-width:260px;border-width:6px}.sbm-button{width:100%;font-size:15px;gap:10px;padding-inline:16px}.sbm-reading-note{text-align:center}.sbm-reader-toolbar{font-size:12px;padding:11px 15px;min-height:48px}.sbm-reader-help{margin:0}.sbm-page{margin-bottom:25px;box-shadow:none}.sbm-page figcaption{font-size:11px;padding-inline:14px}.sbm-transcript{font-size:13px}.sbm-after{padding-block:50px}.sbm-after h2{font-size:28px}.sbm-after>p{font-size:15px;text-align:left}.sbm-after>.sbm-eyebrow{text-align:center}.sbm-desktop-break{display:none}.sbm-actions{gap:12px}.sbm-school-wrap{padding-block:40px}.sbm-school-grid{grid-template-columns:1fr;gap:28px}.sbm-school-grid h2{font-size:25px}.sbm-price-card{padding:22px}.sbm-price-card dl{font-size:15px}.sbm-faq{padding-block:40px}.sbm-faq h2{font-size:22px}.sbm-faq summary{font-size:15px}.sbm-faq details p{font-size:14px}.sbm-footer-links{flex-direction:column;align-items:center;gap:8px;padding-bottom:30px}.sbm-footer{flex-direction:column;gap:0;align-items:center;padding-bottom:100px}.sbm-mobile-cta{display:block;position:fixed;bottom:0;left:0;right:0;z-index:30;background:#fffdf7ef;padding:10px 16px calc(10px + env(safe-area-inset-bottom));border-top:1px solid var(--line);backdrop-filter:blur(8px)}.sbm-mobile-cta a{display:flex;justify-content:center;align-items:center;min-height:46px;padding:10px 12px;border-radius:12px;background:var(--green);color:white;font-weight:700;font-size:14px;text-decoration:none}.sbm-body:has(.sbm-mobile-cta){padding-bottom:0}.sbm-library{padding-block:35px 65px}.sbm-library h1{font-size:36px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{.sbm-header,.sbm-hero,.sbm-transcript,.sbm-mobile-cta,.sbm-reader-toolbar,.sbm-reader-help,.sbm-footer,.sbm-footer-links{display:none}.sbm-page{break-after:page;box-shadow:none;max-width:100%;margin:0}.sbm-page figcaption{display:none}}