:root{--paper:#FFF8F2;--white:#fff;--soft:#F3EBE3;--ink:#1A1230;--text:#2C2440;--muted:#5A5270;--subtle:#8A8298;--pink:#E11D8F;--indigo:#6366F1;--cyan:#0891B2;--amber:#D97706;--mint:#059669;--border:rgba(26,18,48,.10);--shadow:0 14px 34px rgba(26,18,48,.08);--radius:20px;--header-h:118px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.72;overflow-x:hidden}body.modal-open{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit}.shell{width:min(1160px,calc(100% - 32px));margin:auto}.skip-link{position:fixed;left:16px;top:-60px;z-index:300;background:var(--ink);color:#fff;padding:10px 16px;border-radius:999px}.skip-link:focus{top:10px}.site-header{position:fixed;top:0;left:0;right:0;z-index:80;background:var(--paper);border-bottom:1px solid var(--border)}.masthead{height:72px;display:grid;grid-template-columns:120px 1fr 220px;align-items:center}.square-button,.text-button,.close-button{min-height:44px;border:1px solid var(--border);background:#fff;color:var(--ink);border-radius:999px;padding:0 16px;cursor:pointer}.square-button{justify-self:start;border-radius:12px;font-weight:800}.brand-link{justify-self:center;display:flex;align-items:center;min-height:44px}.brand-logo{max-height:38px;max-width:220px;width:auto}.brand-text{font-size:22px;font-weight:900;letter-spacing:.12em;color:var(--ink)}.mast-actions{justify-self:end;display:flex;gap:10px}.text-button{display:inline-flex;align-items:center;justify-content:center}.app-link{background:linear-gradient(135deg,var(--indigo),var(--pink) 55%,var(--amber));color:#fff;border:0;font-weight:800;white-space:nowrap;word-break:keep-all;flex-shrink:0}.chapter-nav{height:46px;background:#fff;border-top:1px solid var(--border)}.chapter-row{height:46px;display:flex;align-items:center;justify-content:center;gap:34px}.chapter-row a{height:46px;display:flex;align-items:center;color:var(--muted);position:relative;font-weight:700}.chapter-row a.is-current,.chapter-row a:hover{color:var(--ink)}.chapter-row a.is-current:after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--pink);border-radius:2px}.site-main{padding-top:var(--header-h)}.hero,.page-hero{padding:56px 0 36px}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center}.eyebrow{font-size:13px;letter-spacing:.16em;font-weight:900;color:var(--pink);text-transform:uppercase}.hero h1,.page-hero h1{font-size:clamp(28px,4vw,34px);line-height:1.24;color:var(--ink);margin:10px 0 18px}.lead{font-size:17px;color:var(--muted);max-width:760px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.button-primary,.button-secondary{display:inline-flex;min-height:44px;align-items:center;justify-content:center;padding:0 20px;border-radius:999px;font-weight:800}.button-primary{background:linear-gradient(135deg,var(--indigo),var(--pink) 55%,var(--amber));color:#fff}.button-secondary{background:#fff;color:var(--ink);border:1px solid var(--border)}.media-frame{min-height:220px;border-radius:24px;background:linear-gradient(145deg,#efe7ff,#ffe8f5 50%,#fff0d8);display:flex;align-items:center;justify-content:center;overflow:hidden;box-shadow:var(--shadow)}.media-frame img{width:100%;max-height:360px;object-fit:contain;display:block}.section{padding:34px 0}.section-title{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:18px}.section-title h2{margin:0;color:var(--ink);font-size:24px}.section-title p{margin:0;color:var(--muted);max-width:620px}.tag-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.tag-card,.card,.article-card,.note-box,.term-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.tag-card{position:relative}.tag-card:before{content:"";width:11px;height:11px;border-radius:50%;display:block;margin-bottom:18px;background:var(--pink)}.tag-card:nth-child(4n+2):before{background:var(--indigo)}.tag-card:nth-child(4n+3):before{background:var(--cyan)}.tag-card:nth-child(4n):before{background:var(--amber)}.tag-card h3,.card h3,.article-card h2,.article-card h3,.term-card h3{color:var(--ink);margin:0 0 8px}.tag-card p,.card p,.article-card p,.term-card p{margin:0;color:var(--muted)}.inline-link{display:inline-block;margin-top:14px;color:var(--pink);font-weight:800}.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:center}.split img,.card img,.article-card img{width:100%;max-height:360px;object-fit:contain;border-radius:16px;margin-bottom:16px}.number-list{display:grid;gap:12px}.number-item{display:grid;grid-template-columns:72px 1fr;gap:14px;padding:18px;background:#fff;border:1px solid var(--border);border-radius:18px}.number{font-size:36px;line-height:1;color:var(--pink);font-weight:900}.number-item:nth-child(2) .number{color:var(--indigo)}.number-item:nth-child(3) .number{color:var(--cyan)}.number-item:nth-child(4) .number{color:var(--amber)}.number-item:nth-child(5) .number{color:var(--mint)}.masonry{columns:3;column-gap:16px}.masonry .card{break-inside:avoid;margin-bottom:16px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.step{background:#fff;border:1px solid var(--border);border-radius:18px;padding:20px}.step b{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:50%;background:var(--ink);color:#fff;margin-bottom:12px}.shelf-list{display:grid;gap:12px}.shelf-row{display:grid;grid-template-columns:150px 1fr auto;align-items:center;gap:18px;background:#fff;border:1px solid var(--border);border-radius:16px;padding:18px}.shelf-row strong{color:var(--ink)}.shelf-row span{color:var(--muted)}.timeline{position:relative;padding-left:34px}.timeline:before{content:"";position:absolute;left:11px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--pink),var(--indigo),var(--cyan),var(--amber))}.timeline-item{position:relative;background:#fff;border:1px solid var(--border);border-radius:18px;padding:18px;margin-bottom:16px}.timeline-item:before{content:"";position:absolute;left:-29px;top:22px;width:14px;height:14px;border-radius:50%;background:var(--pink);border:4px solid var(--paper)}.status{display:inline-flex;padding:4px 10px;border-radius:999px;background:var(--soft);color:var(--ink);font-size:13px;font-weight:800}.content-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.article-card{box-shadow:none}.article-card.full{grid-column:1/-1}.article-card h2{font-size:22px}.article-card h3{font-size:19px}.article-card p+p{margin-top:12px}.article-card ul{margin:12px 0 0;padding-left:1.2em;color:var(--muted)}.notice{border-left:4px solid var(--pink);padding:14px 16px;background:#fff;border-radius:0 16px 16px 0}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--border);border-radius:18px;padding:20px}.faq-item h2,.faq-item h3{margin:0 0 8px;color:var(--ink);font-size:19px}.site-footer{background:var(--ink);color:#F7EFE6;margin-top:52px;padding:46px 0 calc(26px + env(safe-area-inset-bottom))}.footer-grid{display:grid;grid-template-columns:1.8fr repeat(4,1fr);gap:28px}.footer-grid h2{font-size:14px;margin:0 0 10px;color:#fff}.footer-grid a{display:block;color:#F7EFE6;margin:7px 0}.footer-brand p{color:#d9cfdf;max-width:390px}.footer-brand-link{display:flex!important;align-items:center;gap:12px}.footer-logo{max-height:34px;max-width:180px}.footer-brand-link span{display:flex;flex-direction:column}.footer-brand-link small{color:#c5b8cc}.footer-bottom{display:flex;gap:18px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.14);padding-top:20px;margin-top:28px;color:#cbbfd2}.overlay{position:fixed;inset:0;background:rgba(26,18,48,.48);z-index:140;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.modal{position:fixed;z-index:150;left:50%;top:50%;transform:translate(-50%,-48%);width:min(840px,calc(100% - 32px));max-height:min(82vh,760px);overflow:auto;background:var(--paper);border:1px solid var(--border);border-radius:24px;box-shadow:0 30px 90px rgba(26,18,48,.26);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.modal.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,-50%)}.modal-head{position:sticky;top:0;z-index:2;background:rgba(255,248,242,.96);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;border-bottom:1px solid var(--border)}.book-brand{display:flex;align-items:center;gap:12px;font-weight:900;color:var(--ink)}.book-brand img{max-height:30px;max-width:160px}.book-pages{display:grid;grid-template-columns:1fr 1fr}.book-page{padding:22px}.book-page:nth-child(odd){border-right:1px solid var(--border)}.book-page h2{font-size:15px;color:var(--pink);margin:0 0 12px}.book-page a{display:block;padding:12px 0;border-bottom:1px dashed var(--border)}.book-page b{display:block;color:var(--ink)}.book-page span{display:block;font-size:13px;color:var(--muted);margin-top:2px}.search-layer{width:min(640px,calc(100% - 32px))}.search-layer .modal-head h2{margin:2px 0 0;color:var(--ink);font-size:22px}.search-layer .modal-head small{color:var(--pink)}.search-visual{margin:22px;background:#fff;border:1px solid var(--border);border-radius:18px;padding:20px;display:flex;gap:14px;align-items:center}.search-visual span{font-size:34px;color:var(--indigo)}.search-visual p{margin:0;color:var(--muted)}.preset-links{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;padding:0 22px 22px}.preset-links a{background:#fff;border:1px solid var(--border);border-radius:999px;min-height:44px;display:flex;align-items:center;justify-content:center;font-weight:800;color:var(--ink)}.mobile-bottom{display:none}a:focus-visible,button:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}@media(max-width:900px){.tag-grid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}.masonry{columns:2}.hero-grid,.split{grid-template-columns:1fr}.masthead{grid-template-columns:90px 1fr 160px}.desktop-search{display:none}}@media(max-width:700px){:root{--header-h:72px}.chapter-nav{display:none}.masthead{height:72px;grid-template-columns:64px minmax(0,1fr) 96px}.square-button{padding:0 12px}.mast-actions{gap:0}.app-link{padding:0 10px;font-size:14px}.brand-logo{max-width:150px}.hero,.page-hero{padding:34px 0 24px}.hero-grid{gap:20px}.media-frame{min-height:160px}.tag-grid,.content-grid,.steps{grid-template-columns:1fr}.masonry{columns:1}.shelf-row{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.book-pages{grid-template-columns:1fr}.book-page:nth-child(odd){border-right:0}.preset-links{grid-template-columns:repeat(2,1fr)}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--border);display:grid;grid-template-columns:repeat(5,1fr);z-index:90}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--muted);min-height:50px}.mobile-bottom a.is-current{color:var(--pink);font-weight:900}.site-footer{padding-bottom:calc(76px + env(safe-area-inset-bottom))}.modal{max-height:84vh}.section{padding:26px 0}}@media(max-width:430px){.shell{width:min(100% - 32px,1160px)}.masthead{width:calc(100% - 20px)}.brand-text{font-size:18px;letter-spacing:.08em}.tag-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.number-item{grid-template-columns:56px 1fr}.number{font-size:30px}.preset-links{grid-template-columns:1fr 1fr}}

/* Image sizing safeguards: keep all editorial artwork within the intended magazine scale. */
.site-main img{max-width:100%;height:auto}
.hero .media-frame{min-height:0;padding:10px}
.hero .media-frame img{width:auto;max-width:100%;max-height:320px;height:auto;margin:auto}
.section .media-frame{min-height:0;padding:10px}
.section .media-frame img{width:auto;max-width:100%;max-height:300px;height:auto;margin:auto}
.split>div>img{display:block;width:auto;max-width:min(100%,520px);max-height:300px;height:auto;object-fit:contain;margin:0 auto 16px;border-radius:16px}
.card img,.article-card img{display:block;width:auto;max-width:100%;max-height:260px;height:auto;object-fit:contain;margin:0 auto 16px}
.section-image{display:block;width:auto!important;max-width:min(100%,680px)!important;max-height:300px;height:auto;object-fit:contain;margin:0 auto 18px;border-radius:16px;break-inside:avoid-column;column-span:all}

@media(max-width:700px){
  .hero .media-frame img{max-height:240px}
  .section .media-frame img{max-height:230px}
  .split>div>img{max-width:100%;max-height:230px}
  .card img,.article-card img{max-height:220px}
  .section-image{max-width:100%!important;max-height:220px}
}

@media(max-width:430px){
  .hero .media-frame img{max-height:220px}
  .section .media-frame img{max-height:210px}
  .split>div>img{max-height:210px}
  .card img,.article-card img{max-height:200px}
  .section-image{max-height:200px}
}