:root {
            --bg-color: #0a0a0c
;
            --text-color: #e0e0e0;
            --accent-color: #d
633ff;
            --secondary-accent: #33d6ff;
            --card-bg
: #16161a;
            --nav-height: 70px;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font
-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; background: var(--bg-color);
 color: var(--text-color); line-height: 1.6; }
        .container { max
-width: 1200px; margin: 0 auto; padding: 0 20px; }

        header { position: sticky; top: 0; z-index: 1000; background:
 rgba(10, 10, 12, 0.9); border-bottom: 1px
 solid #333; height: var(--nav-height); display: flex; align-items: center; }

        nav { display: flex; justify-content: space-between; align-items: center; width:
 100%; }
        .nav-links { display: flex; gap: 0; list-style:
 none; }
        .nav-links a { color: #fff; text-decoration: none; padding: 0 1
5px; font-size: 14px; transition: 0.3s; }
        .hero
 { padding: 100px 0; text-align: center; background: radial-gradient(circle
 at center, #2a1030 0%, #0a0a0c 70%); }

        h1 { font-size: 3rem; margin-bottom: 20px; background: linear
-gradient(to right, var(--accent-color), var(--secondary-accent)); -webkit-background-clip: text
; color: transparent; }
        .btn { display: inline-block; padding: 12px 30px;
 background: var(--accent-color); color: #fff; text-decoration: none; border-radius: 5
px; font-weight: bold; transition: 0.3s; }
        .btn:hover { transform:
 translateY(-3px); box-shadow: 0 10px 20px rgba(214, 5
1, 255, 0.3); }
        .section { padding: 80px 0; }

        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(3
00px, 1fr)); gap: 30px; }
        .card { background: var(--card-bg
); padding: 30px; border-radius: 15px; border: 1px solid #3
33; transition: 0.3s; }
        .card:hover { border-color: var
(--accent-color); }
        footer { padding: 40px 0; background: #050505;
 text-align: center; border-top: 1px solid #333; }
        .faq-item
 { margin-bottom: 15px; border-bottom: 1px solid #333; }

        .faq-q { padding: 15px; cursor: pointer; font-weight: bold; }

        .faq-a { padding: 0 15px 15px; display: none; color: #aaa
; }
        @media (max-width: 768px) { .nav-links { display
: none; } }