:root {
    --color-bg-base: #060B14;
    --color-bg-card: rgba(16, 24, 39, 0.6);
    --color-neon-green: #00E676;
    --color-neon-green-dim: rgba(0, 230, 118, 0.2);
    --color-neon-blue: #00E5FF;
    --color-text-main: #E2E8F0;
    --color-text-muted: #94A3B8;
    --border-glass: 1px solid rgba(0, 230, 118, 0.3);
    --shadow-neon: 0 0 20px rgba(0, 230, 118, 0.4);
    --blur-glass: blur(16px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Segoe UI", "PingFang SC", sans-serif; background-color: var(--color-bg-base); color: var(--color-text-main); line-height: 1.7; overflow-x: hidden; }
a { text-decoration: none; color: inherit; transition: 0.3s; }
img { max-width: 100%; border-radius: 8px; }

/* 页面光效背景 */
.ambient-light { position: fixed; top: -20vh; left: -10vw; width: 60vw; height: 60vh; background: radial-gradient(circle, var(--color-neon-green-dim) 0%, transparent 60%); z-index: -1; pointer-events: none; }
.ambient-light-2 { position: fixed; bottom: -20vh; right: -10vw; width: 60vw; height: 60vh; background: radial-gradient(circle, rgba(0,229,255,0.15) 0%, transparent 60%); z-index: -1; pointer-events: none; }

/* 导航 */
.header { background: rgba(6, 11, 20, 0.8); backdrop-filter: var(--blur-glass); border-bottom: var(--border-glass); position: sticky; top: 0; z-index: 1000; box-shadow: 0 4px 30px rgba(0,0,0,0.5); }
.nav-wrap { max-width: 1280px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; height: 70px; padding: 0 24px; }
.logo { font-size: 22px; font-weight: 700; color: #FFF; display: flex; align-items: center; gap: 12px; text-shadow: 0 0 10px var(--color-neon-green); }
.logo img { width: 32px; height: 32px; border-radius: 4px; }
.nav-links { display: flex; gap: 32px; }
.nav-links a { font-size: 15px; color: var(--color-text-main); letter-spacing: 1px; position: relative; }
.nav-links a:hover, .nav-links a.active { color: var(--color-neon-green); text-shadow: 0 0 8px var(--color-neon-green); }

.container { max-width: 1280px; margin: 0 auto; padding: 80px 24px; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 36px; border-radius: 4px; font-size: 16px; font-weight: 600; cursor: pointer; transition: 0.3s; letter-spacing: 1px; text-transform: uppercase; }
.btn-primary { background: transparent; color: var(--color-neon-green); border: 2px solid var(--color-neon-green); box-shadow: var(--shadow-neon), inset 0 0 10px var(--color-neon-green-dim); }
.btn-primary:hover { background: var(--color-neon-green); color: #000; box-shadow: 0 0 30px var(--color-neon-green); }
.btn-outline { background: rgba(255,255,255,0.05); color: #FFF; border: 1px solid rgba(255,255,255,0.2); backdrop-filter: var(--blur-glass); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #FFF; box-shadow: 0 0 15px rgba(255,255,255,0.3); }

/* Hero区 */
.hero { text-align: center; padding: 100px 20px; }
.hero-content h1 { font-size: 56px; font-weight: 800; margin-bottom: 16px; color: #FFF; letter-spacing: 2px; }
.hero-content h1 span { color: var(--color-neon-green); text-shadow: var(--shadow-neon); }
.hero-content .subtitle { font-size: 24px; color: var(--color-neon-blue); margin-bottom: 30px; letter-spacing: 4px; }
.hero-content .desc { font-size: 16px; color: var(--color-text-muted); max-width: 600px; margin: 0 auto 50px; line-height: 1.8; }
.hero-btns { display: flex; justify-content: center; gap: 24px; margin-bottom: 60px; }
.hero-visual { position: relative; max-width: 1000px; margin: 0 auto; perspective: 1000px; }
.hero-visual img { border-radius: 12px; border: var(--border-glass); box-shadow: 0 20px 50px rgba(0,0,0,0.8), var(--shadow-neon); transform: rotateX(5deg); transition: 0.5s; }
.hero-visual:hover img { transform: rotateX(0deg); }

/* 模块标题 */
.sec-title { font-size: 32px; font-weight: 700; color: #FFF; text-align: center; margin-bottom: 60px; letter-spacing: 2px; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.sec-title::after { content: ''; width: 60px; height: 3px; background: var(--color-neon-green); box-shadow: var(--shadow-neon); }

/* 核心卖点 */
.feature-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; }
.f-card { background: var(--color-bg-card); backdrop-filter: var(--blur-glass); border: 1px solid rgba(255,255,255,0.1); padding: 40px 20px; text-align: center; border-radius: 12px; transition: 0.3s; position: relative; overflow: hidden; }
.f-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 2px; background: linear-gradient(90deg, transparent, var(--color-neon-green), transparent); opacity: 0; transition: 0.3s; }
.f-card:hover { transform: translateY(-5px); border-color: var(--color-neon-green-dim); box-shadow: 0 10px 30px rgba(0,0,0,0.5), inset 0 0 20px var(--color-neon-green-dim); }
.f-card:hover::before { opacity: 1; }
.f-card img { width: 48px; height: 48px; margin: 0 auto 20px; filter: drop-shadow(0 0 10px var(--color-neon-green)); }
.f-card h3 { font-size: 16px; color: #FFF; margin-bottom: 10px; letter-spacing: 1px; }
.f-card p { font-size: 13px; color: var(--color-text-muted); }

/* 功能详情 (全息视窗) */
.detail-box { display: flex; align-items: center; gap: 60px; margin-bottom: 80px; background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05); padding: 40px; border-radius: 16px; backdrop-filter: var(--blur-glass); }
.detail-box:nth-child(even) { flex-direction: row-reverse; }
.d-text { flex: 1; }
.d-text h3 { font-size: 28px; color: #FFF; margin-bottom: 20px; }
.d-text p { font-size: 16px; color: var(--color-text-muted); margin-bottom: 30px; line-height: 1.8; }
.d-data { display: inline-block; padding: 8px 16px; background: rgba(0,230,118,0.1); border: 1px solid var(--color-neon-green); color: var(--color-neon-green); border-radius: 4px; font-weight: 600; text-shadow: 0 0 5px var(--color-neon-green); }
.d-visual { flex: 1; position: relative; }
.d-visual img { border-radius: 8px; border: var(--border-glass); box-shadow: var(--shadow-neon); }

/* 对比图表 */
.compare-wrap { background: var(--color-bg-card); backdrop-filter: var(--blur-glass); border: 1px solid rgba(255,255,255,0.1); border-radius: 12px; padding: 30px; overflow-x: auto; }
.compare-table { width: 100%; border-collapse: collapse; text-align: left; }
.compare-table th, .compare-table td { padding: 20px; border-bottom: 1px solid rgba(255,255,255,0.05); }
.compare-table th { color: var(--color-text-muted); font-weight: 500; letter-spacing: 1px; }
.compare-table .hl { color: var(--color-neon-green); font-weight: 700; background: rgba(0,230,118,0.05); text-shadow: 0 0 8px rgba(0,230,118,0.5); border-left: 1px solid var(--color-neon-green-dim); border-right: 1px solid var(--color-neon-green-dim); }
.compare-table tr:last-child td { border-bottom: none; }

/* 下载版本区 */
.version-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.v-card { background: rgba(16,24,39,0.8); border: 1px solid rgba(255,255,255,0.1); border-radius: 12px; padding: 50px 30px; text-align: center; backdrop-filter: var(--blur-glass); transition: 0.3s; }
.v-card:hover { transform: translateY(-5px); border-color: rgba(255,255,255,0.3); }
.v-card.rec { border-color: var(--color-neon-green); box-shadow: inset 0 0 20px var(--color-neon-green-dim), var(--shadow-neon); }
.v-card h3 { font-size: 24px; color: #FFF; margin-bottom: 16px; }
.v-card p { font-size: 14px; color: var(--color-text-muted); margin-bottom: 30px; height: 60px; }
.v-card .btn { width: 100%; }

/* 数据背书 */
.data-sec { display: flex; justify-content: space-around; padding: 60px 0; background: linear-gradient(90deg, transparent, rgba(0,230,118,0.05), transparent); border-top: var(--border-glass); border-bottom: var(--border-glass); margin: 80px 0; }
.data-item { text-align: center; }
.data-item h4 { font-size: 48px; font-weight: 800; color: var(--color-neon-green); margin-bottom: 10px; text-shadow: var(--shadow-neon); }
.data-item p { font-size: 15px; color: var(--color-text-main); letter-spacing: 2px; text-transform: uppercase; }

/* FAQ */
.faq-grid { max-width: 900px; margin: 0 auto; display: flex; flex-direction: column; gap: 20px; }
.faq-box { background: var(--color-bg-card); border: 1px solid rgba(255,255,255,0.1); padding: 30px; border-radius: 8px; backdrop-filter: var(--blur-glass); }
.faq-box h4 { font-size: 18px; color: var(--color-neon-blue); margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.faq-box h4::before { content: '>'; color: var(--color-neon-green); font-weight: 900; }
.faq-box p { font-size: 15px; color: var(--color-text-muted); line-height: 1.6; }

/* Footer */
.footer { border-top: 1px solid rgba(255,255,255,0.05); padding: 40px; text-align: center; color: var(--color-text-muted); font-size: 14px; margin-top: 80px; }