:root{--bg:#080611;--bg2:#0D0918;--bg3:#151022;--card:#16111F;--purple:#C78BFF;--purple2:#A96BFF;--text:#F5F2FF;--muted:#C8BBDD;--sub:#9E8FB6;--line:rgba(199,139,255,.18);--shadow:0 18px 42px rgba(0,0,0,.48)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 80% 0,rgba(122,43,255,.12),transparent 28%),var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.container{width:min(1180px,calc(100% - 36px));margin:auto}.site-header{position:sticky;top:0;z-index:9999;background:rgba(8,6,17,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(199,139,255,.16)}.header-shell{width:min(1220px,calc(100% - 28px));height:70px;margin:auto;display:flex;align-items:center;gap:24px}.logo-text{font-size:30px;font-weight:900;letter-spacing:2px;background:linear-gradient(180deg,#fff 0%,#C78BFF 42%,#7A2BFF 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-shadow:0 0 12px rgba(199,139,255,.62),0 0 32px rgba(122,43,255,.46);white-space:nowrap}.nav-core{display:flex;align-items:center;gap:8px;white-space:nowrap;flex-wrap:nowrap;margin-left:auto}.nav-core a{color:var(--text);padding:9px 11px;border-radius:999px;font-weight:700;font-size:15px}.nav-core a:hover,.nav-core a.active{color:var(--purple);background:rgba(199,139,255,.10);box-shadow:0 0 18px rgba(199,139,255,.16)}.main-btn{display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(180deg,#D9A8FF 0%,#8B45FF 55%,#5A19C9 100%);color:#fff;border-radius:999px;box-shadow:0 12px 28px rgba(167,99,255,.24);padding:11px 24px;font-weight:800;white-space:nowrap;transition:.2s}.main-btn:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(167,99,255,.34)}.header-register{margin-left:4px}.channel-nav{background:rgba(13,9,24,.94);border-top:1px solid rgba(199,139,255,.08);border-bottom:1px solid rgba(199,139,255,.12);overflow-x:auto;white-space:nowrap;scrollbar-width:none}.channel-nav::-webkit-scrollbar{display:none}.channel-inner{width:min(1220px,calc(100% - 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