*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:#11263c;background:#f7f9fc;line-height:1.65}
.container{width:min(1140px,92%);margin:0 auto}
.topbar{position:sticky;top:0;background:rgba(8,20,35,.94);backdrop-filter:blur(8px);z-index:10;border-bottom:1px solid rgba(255,255,255,.08)}
.nav{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none}
.brand-mark{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#0f4c81,#123a62);font-size:22px}
.brand-title{font-weight:700}
.brand-subtitle{font-size:.82rem;color:#c9d6e3}
nav a{color:#dce7f2;text-decoration:none;margin-left:16px;font-size:.95rem}
nav a:hover,nav a.active{color:#fff;border-bottom:2px solid #8ec5f6;padding-bottom:4px}
.hero{background:linear-gradient(135deg,#0d2742,#123e66 55%,#1b5e91);color:#fff;padding:76px 0 64px}
.hero h1{font-size:clamp(2rem,4vw,3.4rem);line-height:1.12;margin:.15em 0}
.eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:.8rem;color:#b8d2ea}
.lead{font-size:1.08rem;color:#d7e6f5;max-width:820px}
.section{padding:64px 0}
.alt{background:#eef3f8}
h2{font-size:clamp(1.55rem,3vw,2.35rem);margin:0 0 18px;color:#10304f}
h3{margin-top:0;color:#10304f}
.grid{display:grid;gap:20px}
.cards-2{grid-template-columns:repeat(2,1fr)}
.cards-3{grid-template-columns:repeat(3,1fr)}
.cards-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border-radius:18px;box-shadow:0 10px 28px rgba(8,20,35,.07);padding:24px}
.btn{display:inline-block;padding:12px 18px;border-radius:10px;text-decoration:none;font-weight:700}
.btn-primary{background:#fff;color:#10304f}
.btn-secondary{border:1px solid rgba(255,255,255,.45);color:#fff}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px}
.list-clean{padding-left:18px;margin:0}
.feature{border-left:4px solid #1b5e91;padding-left:16px}
.table-like{display:grid;gap:14px}
.table-row{display:grid;grid-template-columns:220px 1fr;gap:16px;background:#fff;padding:18px;border-radius:14px;box-shadow:0 8px 22px rgba(8,20,35,.05)}
.badge{display:inline-block;background:#dcecfb;color:#10304f;border-radius:999px;padding:6px 10px;font-size:.85rem;font-weight:700}
.footer{background:#081423;color:#d6e2ef;padding:36px 0;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:20px}
.footer h3,.footer h4{color:#fff;margin-top:0}
.muted{color:#97a9bc;font-size:.92rem}
.timeline{display:grid;gap:16px}
.timeline-item{display:grid;grid-template-columns:170px 1fr;gap:18px;align-items:start;background:#fff;padding:20px;border-radius:16px;box-shadow:0 10px 30px rgba(8,20,35,.06)}
.timeline-year{font-weight:700;color:#0f4c81}
.quote{background:#fff;border-radius:18px;box-shadow:0 10px 30px rgba(8,20,35,.06);padding:28px;font-size:1.25rem;font-style:italic;color:#123a62}
@media (max-width: 900px){
  .nav,.footer-grid,.cards-2,.cards-3,.cards-4,.table-row,.timeline-item{grid-template-columns:1fr}
  .nav{flex-direction:column;align-items:flex-start}
  nav a{margin:0 12px 0 0}
}


.series-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.series-card{background:#fff;border-radius:18px;box-shadow:0 10px 28px rgba(8,20,35,.07);padding:24px;border-top:6px solid #6d28d9}
.series-card h3{margin-bottom:10px}
.series-card ul{margin:8px 0 0 18px}
.kpi{display:inline-block;background:#f0f4fa;padding:4px 10px;border-radius:999px;font-size:.85rem;margin-bottom:10px}
.book-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.book-cover{width:100%;height:auto;border-radius:12px;display:block;box-shadow:0 8px 22px rgba(8,20,35,.12);margin-bottom:12px}
.note{background:#fff3cd;padding:14px 16px;border-radius:12px}
@media (max-width: 900px){.series-grid,.book-grid{grid-template-columns:1fr}}


.series-section{margin-bottom:36px}
.series-header{display:flex;align-items:center;gap:10px;margin:0 0 16px;padding:12px 16px;border-radius:14px;background:#fff;box-shadow:0 8px 22px rgba(8,20,35,.06)}
.series-dot{width:14px;height:14px;border-radius:50%}
.series-subtitle{color:#5b6b7f;font-size:.95rem;margin:4px 0 0}
.series-1 .series-dot{background:#7c3aed}
.series-5 .series-dot{background:#16a34a}
.series-6 .series-dot{background:#dc2626}
.book-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.book-cover{width:100%;height:auto;border-radius:12px;display:block;box-shadow:0 8px 22px rgba(8,20,35,.12);margin-bottom:12px}
@media (max-width:900px){.book-grid{grid-template-columns:1fr}}


.search-row{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0 0}
.search-input{flex:1;min-width:260px;padding:12px 14px;border:1px solid #c9d6e3;border-radius:10px;font-size:1rem}
.filter-chip{padding:10px 14px;border:none;border-radius:999px;cursor:pointer;font-weight:700}
.doc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.doc-card{background:#fff;border-radius:18px;box-shadow:0 10px 28px rgba(8,20,35,.07);padding:22px}
.doc-frame{width:100%;height:420px;border:none;border-radius:12px;background:#f5f7fa}
.map-table{width:100%;border-collapse:collapse;background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 10px 28px rgba(8,20,35,.07)}
.map-table th,.map-table td{padding:12px 14px;border-bottom:1px solid #e8eef5;text-align:left}
.map-table th{background:#eef3f8;color:#10304f}
.impact-box{background:#fff;border-radius:18px;box-shadow:0 10px 28px rgba(8,20,35,.07);padding:24px}
.cta-global{background:linear-gradient(135deg,#0d2742,#123e66 55%,#1b5e91);color:#fff;border-radius:18px;padding:28px;box-shadow:0 10px 28px rgba(8,20,35,.12)}
.cta-global a{display:inline-block;margin-top:12px;padding:12px 18px;border-radius:10px;background:#fff;color:#10304f;text-decoration:none;font-weight:700}
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.kpi-card{background:#fff;border-radius:18px;box-shadow:0 10px 28px rgba(8,20,35,.07);padding:22px;text-align:center}
.kpi-card .num{font-size:2rem;font-weight:800;color:#10304f}
.concept-index{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.concept-card{background:#fff;border-radius:18px;box-shadow:0 10px 28px rgba(8,20,35,.07);padding:22px}
.resource-list{display:grid;gap:14px}
.resource-item{background:#fff;border-radius:14px;padding:18px;box-shadow:0 8px 22px rgba(8,20,35,.05)}
.hidden{display:none !important}
@media (max-width:900px){.doc-grid,.kpi-grid,.concept-index{grid-template-columns:1fr}}


.book-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.meta-list{display:grid;gap:10px}
.meta-item{padding:12px 14px;background:#f3f6fa;border-radius:12px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.related-card{background:#fff;border-radius:18px;box-shadow:0 10px 28px rgba(8,20,35,.07);padding:18px}
.related-card img{width:100%;height:auto;border-radius:10px;margin-bottom:10px}
@media (max-width:900px){.book-detail-grid,.related-grid{grid-template-columns:1fr}}


.meta-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.meta-item{padding:12px 14px;background:#f3f6fa;border-radius:12px}
.book-summary{background:#fff;border-radius:18px;box-shadow:0 10px 28px rgba(8,20,35,.07);padding:24px}
@media (max-width:900px){.meta-grid{grid-template-columns:1fr}}