.article-index-intro{padding:64px 0 34px;background:linear-gradient(180deg,#f8fbff,#fff)}
.article-index-intro h1{font-size:clamp(38px,6vw,62px);margin:8px 0 14px;letter-spacing:-.05em}.article-index-intro p{max-width:850px;font-size:18px;color:#475569;line-height:1.8}
.note-index{padding:28px 0 72px}.note-category{margin:34px 0 16px;font-size:28px;letter-spacing:-.04em}.note-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.note-card{display:flex;flex-direction:column;min-height:230px;padding:24px;border:1px solid #e2e8f0;border-radius:22px;background:#fff;box-shadow:0 10px 28px rgba(15,23,42,.05);text-decoration:none;color:#0f172a}.note-card:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(15,23,42,.09)}.note-card .emoji{font-size:32px}.note-card .tag{display:inline-block;margin:12px 0 8px;color:#2563eb;font-weight:900;font-size:13px}.note-card h3{font-size:21px;line-height:1.35;margin:0 0 12px;letter-spacing:-.035em}.note-card p{margin:0;color:#64748b;line-height:1.65}.note-card b{margin-top:auto;padding-top:18px;color:#1d4ed8}
.article-page{background:#fff}.article-hero{padding:58px 0 38px;background:linear-gradient(180deg,#f8fbff,#fff);border-bottom:1px solid #eef2f7}.article-wrap{width:min(100% - 32px,900px);margin:0 auto}.article-breadcrumb{font-size:14px;color:#64748b;margin-bottom:20px}.article-breadcrumb a{color:#2563eb}.article-category{display:inline-flex;align-items:center;gap:7px;padding:7px 11px;border-radius:999px;background:#eff6ff;color:#1d4ed8;font-weight:900;font-size:13px}.article-hero h1{font-size:clamp(36px,6vw,56px);line-height:1.18;letter-spacing:-.055em;margin:14px 0 18px}.article-lead{font-size:19px;line-height:1.85;color:#475569}.article-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;color:#64748b;font-size:14px}.article-body{padding:40px 0 70px}.article-body h2{font-size:29px;letter-spacing:-.04em;margin:38px 0 13px}.article-body p{font-size:17px;line-height:1.9;color:#334155}.article-body ul,.article-body ol{font-size:17px;line-height:1.85;color:#334155;padding-left:24px}.article-summary{padding:20px 22px;border-radius:18px;background:#f8fafc;border:1px solid #e2e8f0;margin:0 0 30px}.article-summary strong{display:block;margin-bottom:8px;font-size:18px}.article-summary p{margin:0}.related-notes{margin-top:48px;padding-top:28px;border-top:1px solid #e2e8f0}.related-notes h2{margin-top:0}.related-links{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.related-links a{display:block;padding:16px 18px;border:1px solid #e2e8f0;border-radius:14px;background:#fff;color:#1e3a8a;font-weight:800;line-height:1.5}.article-author-note{margin-top:38px;padding:18px 20px;border-left:4px solid #93c5fd;background:#f8fbff;border-radius:10px;color:#475569;line-height:1.7}
.home-notes-section{padding:70px 0;background:#f8fafc}.home-notes-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}.home-notes-head h2{font-size:38px;letter-spacing:-.05em;margin:5px 0}.home-notes-head p{margin:0;color:#64748b}.home-notes-head a{font-weight:900;color:#1d4ed8;white-space:nowrap}.home-notes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.home-note-card{display:block;padding:22px;border:1px solid #e2e8f0;border-radius:20px;background:#fff;color:#0f172a;box-shadow:0 8px 20px rgba(15,23,42,.04)}.home-note-card span{font-size:13px;font-weight:900;color:#2563eb}.home-note-card h3{margin:9px 0 8px;font-size:20px;line-height:1.4}.home-note-card p{margin:0;color:#64748b;line-height:1.6;font-size:15px}
.study-guide-static{padding:10px 0 70px}.study-guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.study-guide-card{padding:24px;border:1px solid #e2e8f0;border-radius:20px;background:#fff}.study-guide-card h3{font-size:22px;margin:0 0 10px}.study-guide-card p{color:#475569;line-height:1.75}.study-guide-card ul{padding-left:20px;color:#334155;line-height:1.75}.inline-note-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.inline-note-links a{display:inline-flex;padding:9px 12px;border-radius:10px;background:#eff6ff;color:#1d4ed8;font-weight:800}
@media(max-width:900px){.note-grid,.home-notes-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.note-grid,.home-notes-grid,.study-guide-grid,.related-links{grid-template-columns:1fr}.article-index-intro{padding-top:42px}.article-hero{padding-top:38px}.article-wrap{width:min(100% - 24px,900px)}.article-hero h1{font-size:38px}.article-lead{font-size:17px}.article-body p,.article-body ul,.article-body ol{font-size:16px}.home-notes-head{display:block}.home-notes-head a{display:inline-block;margin-top:12px}}