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312px;align-items:start;gap:52px;display:grid}.hub-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;display:grid}@media (max-width:1080px){.hub-layout{grid-template-columns:minmax(0,1fr) 280px;gap:40px}}@media (max-width:880px){.hub-layout{grid-template-columns:1fr;gap:44px}.hub-aside{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:24px;display:grid}.hub-aside-sticky{position:static!important}}@media (max-width:600px){.hub-aside{grid-template-columns:1fr}}@media (max-width:520px){.hub-cards{grid-template-columns:1fr}}.rail-item{color:inherit;grid-template-columns:96px minmax(0,1fr);align-items:start;gap:14px;padding-block:16px;text-decoration:none;display:grid}.rail-item:first-child{padding-block-start:0}.rail-item+.rail-item{border-block-start:1px solid var(--rule)}.rail-item .rail-title{transition:color .15s}.rail-item:hover .rail-title{color:var(--navy)}@media (max-width:520px){.rail-item{grid-template-columns:76px minmax(0,1fr);gap:12px}}.sec-head{border-block-end:2px solid var(--navy);align-items:center;gap:10px;margin-block-end:16px;padding-block-end:10px;display:flex}.sec-head:before{content:"";background:var(--navy);border-radius:2px;flex-shrink:0;width:4px;height:18px}.home-shell{background:var(--home-canvas)}.home-wrap{width:100%;max-width:1180px;margin-inline:auto;padding-inline:32px}.home-band{background:var(--home-band);border-block:1px solid var(--home-rule)}@media (max-width:600px){.home-wrap{padding-inline:20px}}.home-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;display:grid}@media (max-width:920px){.home-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}}@media (max-width:560px){.home-grid{grid-template-columns:1fr}}.topic-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;display:grid}@media (max-width:920px){.topic-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (max-width:640px){.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:400px){.topic-grid{grid-template-columns:1fr}}.topic-tile{text-align:start;cursor:pointer;background:var(--surface);border:1px solid var(--home-rule);border-radius:14px;justify-content:space-between;align-items:center;gap:12px;width:100%;padding:15px 18px;transition:border-color .15s,box-shadow .18s,transform .18s,background .15s;display:flex}.topic-tile:hover{border-color:var(--navy);box-shadow:var(--shadow-md);transform:translateY(-2px)}.mostread-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:22px;display:grid}@media (max-width:1080px){.mostread-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px 18px}}@media (max-width:720px){.mostread-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:440px){.mostread-grid{grid-template-columns:1fr}}.mr-title{transition:color .15s}.mostread-grid a:hover .mr-title{color:var(--navy)}@media (max-width:640px){.inst-header-inner{flex-wrap:wrap;gap:10px!important;height:auto!important;padding:10px 16px!important}.inst-subtitle{display:none}.inst-nav{flex-wrap:wrap;justify-content:flex-start;width:100%;gap:2px!important}.inst-nav a{padding:7px 10px!important;font-size:14px!important}}::selection{background:var(--accent-soft);color:var(--ink)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--rule-strong);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--ink-muted)}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}