.tc-hero{padding-top:var(--space-16);padding-bottom:var(--space-10)}.tc-hero-inner{padding:var(--space-8);border-radius:var(--radius-xl);background:radial-gradient(circle at top left,rgba(15,23,42,0.98),rgba(8,13,26,0.96));border:1px solid var(--color-border-strong);box-shadow:var(--shadow-soft)}.tc-hero-header h1{margin-bottom:var(--space-3)}.tc-hero-intro{font-size:var(--font-size-sm);max-width:60ch}.tc-hero-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--space-4);margin-top:var(--space-6);padding-top:var(--space-5);border-top:1px solid var(--color-border-subtle)}.tc-hero-meta-item{display:flex;flex-direction:column;gap:0.25rem}.tc-hero-meta-label{font-size:var(--font-size-xs);letter-spacing:0.16em;text-transform:uppercase;color:var(--color-text-muted)}.tc-hero-meta-value{font-size:var(--font-size-sm);color:var(--color-text)}.tc-content{padding-bottom:var(--space-16)}.tc-layout{display:grid;grid-template-columns:320px minmax(0,1fr);gap:var(--space-10);align-items:flex-start;margin-top:var(--space-10)}.tc-sidebar{position:sticky;top:calc(var(--nav-height) + var(--space-6))}.tc-toc{border-radius:var(--radius-lg);border:1px solid var(--color-border-strong);background:radial-gradient(circle at top left,rgba(15,23,42,0.98),rgba(8,13,26,1));box-shadow:var(--shadow-soft);padding:var(--space-6);display:flex;flex-direction:column;gap:var(--space-5)}.tc-toc-title{font-size:var(--font-size-sm);margin-bottom:0}.tc-toc-list{display:flex;flex-direction:column;gap:0.4rem;font-size:var(--font-size-sm)}.tc-toc-list a{display:inline-flex;align-items:center;gap:0.4rem;color:var(--color-text-muted)}.tc-toc-list a::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--color-primary-soft);border:1px solid rgba(34,197,94,0.6)}.tc-toc-list a:hover{color:var(--color-text)}.tc-cta-block{margin-top:var(--space-4);padding-top:var(--space-4);border-top:1px dashed var(--color-border-subtle);display:flex;flex-direction:column;gap:var(--space-3)}.tc-cta-text{margin-bottom:0;font-size:var(--font-size-xs);max-width:none}.tc-cta-btn{width:100%;justify-content:center}.tc-article{display:flex;flex-direction:column;gap:var(--space-10)}.tc-section h2{font-size:var(--font-size-2xl)}.tc-section p:last-child{margin-bottom:0}.tc-list{margin-bottom:var(--space-4);padding-left:var(--space-4);display:flex;flex-direction:column;gap:0.4rem}.tc-list li{position:relative;font-size:var(--font-size-sm);color:var(--color-text-muted)}.tc-list li::before{content:"";position:absolute;left:-1.2rem;top:0.55rem;width:6px;height:6px;border-radius:999px;background:var(--color-primary-soft);border:1px solid rgba(34,197,94,0.7)}.tc-section a{text-decoration:underline;text-decoration-color:rgba(148,163,184,0.7);text-underline-offset:3px}.tc-section a:hover{text-decoration-color:var(--color-primary)}.tc-related{margin-top:var(--space-2)}.tc-related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--space-5)}.tc-related-card{border-radius:var(--radius-md);border:1px solid var(--color-border-subtle);background:linear-gradient(145deg,rgba(15,23,42,0.96),rgba(15,23,42,0.86));padding:var(--space-5);box-shadow:var(--shadow-soft);transition:transform var(--transition-fast),box-shadow var(--transition-fast),border-color var(--transition-fast)}.tc-related-card h3{font-size:var(--font-size-base);margin-bottom:var(--space-2)}.tc-related-card p{font-size:var(--font-size-sm);margin-bottom:0}.tc-related-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-elevated);border-color:var(--color-primary)}@media (max-width:1024px){.tc-layout{grid-template-columns:1fr;gap:var(--space-6)}.tc-sidebar{position:static;top:auto;order:-1}}@media (max-width:768px){.tc-hero{padding-top:var(--space-12);padding-bottom:var(--space-8)}.tc-hero-inner{padding:var(--space-6)}.tc-layout{margin-top:var(--space-8)}.tc-toc{padding:var(--space-5)}.tc-cta-btn{width:auto;align-self:flex-start}}@media (max-width:480px){.tc-hero-inner{padding:var(--space-5)}.tc-hero-meta{grid-template-columns:1fr}.tc-toc{padding:var(--space-4)}.tc-article{gap:var(--space-8)}}