:root{--bg: #0a0a0f;--bg-2: #11121a;--bg-3: #1a1c28;--border: rgba(255, 255, 255, .08);--text: #e6e8f0;--text-2: #9aa3b2;--text-3: #6b7280;--primary: #7c5cff;--primary-2: #4ad7e0;--accent: linear-gradient(135deg, #7c5cff 0%, #4ad7e0 100%);--warn: #f59e0b;--warn-2: #fbbf24;--warn-accent: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);--danger: #ef4444;--success: #22c55e}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Inter,Noto Sans SC,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}.container{max-width:1200px;margin:0 auto;padding:0 24px}.gradient-text{background:var(--accent);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.btn{padding:16px 32px;font-size:16px;font-weight:600;border-radius:12px;text-decoration:none;display:inline-flex;align-items:center;gap:8px;cursor:pointer;border:none;font-family:inherit}.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 30px #7c5cff59}.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 40px #7c5cff80}.btn-ghost{background:#ffffff0d;color:var(--text);border:1px solid var(--border)}.btn-ghost:hover{background:#ffffff1a}.navbar{position:fixed;top:0;left:0;right:0;z-index:100;padding:18px 0;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#0a0a0fb3;border-bottom:1px solid var(--border)}.nav-wrap{display:flex;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;text-decoration:none;color:var(--text)}.logo-mark{width:36px;height:36px;background:var(--accent);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;box-shadow:0 8px 24px #7c5cff66}.nav-links{display:flex;gap:36px}.nav-links a{color:var(--text-2);text-decoration:none;font-size:15px;font-weight:500;transition:color .2s}.nav-links a:hover,.nav-links a.active{color:var(--text)}.nav-cta{padding:10px 22px;background:var(--accent);color:#fff!important;border-radius:8px;font-weight:600;text-decoration:none;box-shadow:0 6px 20px #7c5cff4d;transition:transform .2s}.nav-cta:hover{transform:translateY(-2px)}.nav-recharge{padding:10px 20px;background:var(--warn-accent);color:#fff!important;border-radius:8px;font-weight:600;text-decoration:none;box-shadow:0 6px 20px #f59e0b59;display:inline-flex;align-items:center;gap:6px;transition:transform .2s,box-shadow .2s}.nav-recharge:hover{transform:translateY(-2px);box-shadow:0 10px 28px #f59e0b80}.nav-back{display:inline-flex;align-items:center;gap:6px;color:var(--text-2);text-decoration:none;font-size:15px;font-weight:500;padding:8px 14px;border-radius:8px;border:1px solid var(--border);transition:all .2s}.nav-back:hover{color:var(--text);border-color:#7c5cff66}.nav-login{color:var(--text-2);text-decoration:none;font-size:15px;font-weight:500;padding:8px 14px;border-radius:8px;transition:color .2s,background .2s}.nav-login:hover{color:var(--text);background:#ffffff0d}.nav-user{display:flex;align-items:center;gap:12px;padding:4px 12px 4px 16px;border-radius:10px;background:#ffffff0a;border:1px solid var(--border)}.nav-user-meta{display:flex;flex-direction:column;align-items:flex-start;gap:2px;line-height:1.2}.nav-user-name{font-size:13.5px;font-weight:600;color:var(--text);display:inline-flex;align-items:center;gap:6px}.nav-user-name i{font-size:12px;color:var(--primary-2)}.nav-user-balance{font-size:11.5px;color:var(--text-3);display:inline-flex;align-items:center;gap:4px}.nav-user-balance i{font-size:10px;color:var(--warn-accent)}.nav-logout{background:none;border:1px solid var(--border);color:var(--text-2);font-size:12.5px;font-weight:500;padding:6px 12px;border-radius:8px;cursor:pointer;font-family:inherit;transition:all .2s}.nav-logout:hover{color:var(--text);border-color:#ef444466;background:#ef444414}@media (max-width: 768px){.nav-links{display:none}}@media (max-width: 560px){.nav-user-meta{display:none}}footer{padding:40px 0 32px;border-top:1px solid var(--border);background:var(--bg);text-align:center;color:var(--text-2);font-size:14px}footer .social{display:flex;gap:18px;justify-content:center;margin-bottom:18px}footer .social a{width:38px;height:38px;border-radius:10px;background:var(--bg-2);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--text-2);text-decoration:none;transition:color .2s,border-color .2s}footer .social a:hover{color:var(--primary-2);border-color:var(--primary-2)}footer .beian{margin-top:14px;font-size:12.5px}footer .beian a{color:var(--text-2);text-decoration:none;transition:color .2s;margin:0 6px}footer .beian a:hover{color:var(--text)}.fade-in{opacity:0;transform:translateY(30px);transition:opacity .7s ease-out,transform .7s ease-out}.fade-in.visible{opacity:1;transform:translateY(0)}