.premium-content-wrapper{width:100%;max-width:1000px;margin:0 auto;display:flex;flex-direction:column;gap:3rem;padding:0 1.5rem}.premium-card{width:100%;background:var(--bg-panel);border-radius:1.5rem;border:1px solid var(--card-border);padding:clamp(2rem,5vw,3.5rem) clamp(1.25rem,5vw,3.5rem);position:relative;overflow:hidden;box-shadow:var(--shadow-glow);z-index:1}:root.dark .premium-card{background-image:radial-gradient(circle at 85% -10%,rgba(109,40,217,.25) 0%,transparent 40%),radial-gradient(circle at 0% 110%,rgba(34,211,238,.15) 0%,transparent 40%),url("data:image/svg+xml,%3Csvg width='1000' height='1000' viewBox='0 0 1000 1000' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M-100,200 Q400,-100 1000,500' fill='none' stroke='rgba(56,189,248,0.08)' stroke-width='1.5'/%3E%3Cpath d='M0,400 C300,100 700,0 1100,400' fill='none' stroke='rgba(167,139,250,0.06)' stroke-width='2'/%3E%3Cpath d='M200,-50 C500,300 800,700 1200,400' fill='none' stroke='rgba(56,189,248,0.04)' stroke-width='1'/%3E%3Ccircle cx='700' cy='150' r='2' fill='rgba(167,139,250,0.5)'/%3E%3Ccircle cx='850' cy='350' r='1.5' fill='rgba(56,189,248,0.6)'/%3E%3Ccircle cx='450' cy='80' r='1' fill='rgba(255,255,255,0.3)'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:top right;background-size:cover}.content-header-area{position:relative;z-index:2;margin-bottom:2.5rem}.intro-card .content-header-area{margin-bottom:1.5rem}.content-label{display:inline-block;font-size:clamp(13px,2vw,14px);font-weight:700;color:var(--accent-cyan);text-transform:uppercase;letter-spacing:.12em;margin-bottom:1rem;position:relative}.content-label:after{content:"";position:absolute;bottom:-.4rem;left:0;width:1.5rem;height:2px;background:var(--accent-cyan);border-radius:2px}.content-header-area h2{font-size:clamp(28px,4vw,36px);font-weight:800;color:var(--text-main);margin:0 0 1rem;line-height:1.2;letter-spacing:-.02em}.rich-text p{font-size:clamp(16px,2vw,17px);color:var(--text-muted);margin:0 0 1.25rem;line-height:1.8}.rich-text p:last-child{margin-bottom:0}.rich-text a,.collapsible-content p a{color:var(--link-color);text-decoration:underline;text-underline-offset:3px;font-weight:500;transition:all .2s}.rich-text a:hover,.collapsible-content p a:hover{text-decoration:underline wavy;outline:2px solid currentColor;outline-offset:2px}.collapsible-list{display:flex;flex-direction:column;gap:1rem;position:relative;z-index:2}.collapsible-item{background:var(--card-bg);border:1px solid var(--card-border);border-radius:1rem;overflow:hidden;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative}.collapsible-item:hover{border-color:#22d3ee66;box-shadow:0 4px 12px #0000000d}.collapsible-item[open]{border-color:transparent;background:var(--bg-panel);box-shadow:inset 0 0 0 1px #ffffff0d,var(--shadow-glow)}.collapsible-item[open]:after{content:"";position:absolute;left:-1px;top:20%;bottom:20%;width:3px;background:linear-gradient(to bottom,var(--accent-cyan),var(--accent-violet));border-radius:0 4px 4px 0;box-shadow:2px 0 16px #22d3eecc;animation:pulseLeftGlow 3s infinite alternate;will-change:opacity}.collapsible-summary{padding:clamp(1.25rem,3vw,1.5rem) clamp(1rem,4vw,1.75rem);cursor:pointer;list-style:none;display:flex;align-items:center;gap:1.25rem;font-weight:700;color:var(--text-main);font-size:clamp(17px,2.5vw,20px);line-height:1.4;transition:color .3s ease}.collapsible-summary::-webkit-details-marker{display:none}.collapsible-item[open] .collapsible-summary{border-bottom:1px solid var(--card-border);color:var(--accent-cyan)}.collapsible-summary:focus-visible{outline:2px solid var(--accent-cyan);outline-offset:-2px;border-radius:1rem}.icon-action{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:#22d3ee1a;color:var(--accent-cyan);flex-shrink:0;transition:all .3s ease}.collapsible-item[open] .icon-action{background:#22d3ee33;box-shadow:inset 0 0 8px #22d3ee33}.icon-action svg{width:16px;height:16px;stroke-width:2.5}.collapsible-summary .icon-minus,.collapsible-item[open] .collapsible-summary .icon-plus{display:none}.collapsible-item[open] .collapsible-summary .icon-minus{display:block}.item-title{flex-grow:1}.icon-chevron{color:var(--accent-cyan);transition:transform .3s cubic-bezier(.4,0,.2,1);display:flex;align-items:center}.icon-chevron svg{width:20px;height:20px;stroke-width:2.5}.collapsible-item[open] .icon-chevron{transform:rotate(180deg)}.collapsible-content{padding:clamp(1.25rem,4vw,1.5rem) clamp(1rem,4vw,1.75rem);color:var(--text-muted);font-size:clamp(16px,2vw,17px);line-height:1.7;display:flex;flex-direction:column;gap:1rem}.collapsible-content p{margin:0;font-weight:400}.callout-box{margin-top:3rem;background:var(--card-bg);border:1px solid var(--card-border);border-radius:1.25rem;padding:clamp(1.5rem,4vw,2rem) clamp(1.25rem,4vw,2rem);display:flex;align-items:center;justify-content:space-between;gap:1.5rem;position:relative;z-index:2}@media(max-width:640px){.callout-box{flex-direction:column;text-align:left;align-items:stretch;gap:1.25rem}.callout-info{flex-direction:row;align-items:flex-start;gap:1rem}.callout-btn{width:100%;justify-content:center}}.callout-info{display:flex;align-items:center;gap:1.25rem}.callout-icon{width:52px;height:52px;border-radius:50%;background:#a78bfa1a;color:var(--accent-violet);display:flex;align-items:center;justify-content:center;flex-shrink:0;border:1px solid rgba(167,139,250,.2)}.callout-icon svg{width:26px;height:26px;stroke-width:1.5}.callout-text h3{margin:0 0 .35rem;color:var(--text-main);font-size:clamp(19px,2.5vw,22px);font-weight:700;line-height:1.2}.callout-text p{margin:0;color:var(--text-muted);font-size:clamp(16px,2vw,17px);line-height:1.6;max-width:380px}.callout-btn{background:linear-gradient(135deg,var(--accent-cyan),var(--accent-violet));color:#fff!important;text-decoration:none;padding:.875rem 1.75rem;border-radius:999px;font-weight:600;font-size:clamp(16px,2vw,17px);display:inline-flex;align-items:center;gap:.75rem;transition:transform .2s ease,box-shadow .2s ease;white-space:nowrap;box-shadow:0 4px 15px #6d28d94d;border:none;cursor:pointer}.callout-btn:hover,.callout-btn:focus-visible{transform:translateY(-2px);box-shadow:0 8px 25px #6d28d980;outline:none}.callout-btn:focus-visible{outline:2px solid var(--accent-cyan);outline-offset:2px}.callout-btn svg{width:18px;height:18px;stroke-width:2.5;transition:transform .3s}.callout-btn:hover svg{transform:translate(4px)}.premium-footer-wrapper{width:100%;padding:0 1.5rem;margin:3rem auto 1.5rem;max-width:1000px}