:root {
    --bg-dark: #090B10;
    --bg-panel: #111520;
    --neon-green: #00FF66;
    --neon-green-dim: rgba(0, 255, 102, 0.15);
    --neon-glow: 0 0 10px rgba(0,255,102,0.4), 0 0 20px rgba(0,255,102,0.2);
    --neon-glow-strong: 0 0 15px rgba(0,255,102,0.6), 0 0 30px rgba(0,255,102,0.4);
    --text-main: #FFFFFF;
    --text-muted: #8B9BB4;
    --border-color: rgba(0, 255, 102, 0.3);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { 
    font-family: 'Segoe UI', "Microsoft YaHei", sans-serif;
    color: var(--text-main); 
    background-color: var(--bg-dark);
    /* 暗色网格背景 */
    background-image: 
        linear-gradient(rgba(0, 255, 102, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 102, 0.05) 1px, transparent 1px);
    background-size: 30px 30px;
    background-attachment: fixed;
    line-height: 1.6;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* 模拟浏览器窗口 */
.browser-window {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-panel);
    box-shadow: var(--neon-glow);
    overflow: hidden;
    position: relative;
    transition: 0.3s;
}
.browser-window:hover { box-shadow: var(--neon-glow-strong); border-color: var(--neon-green); }
.browser-header {
    height: 32px;
    background: rgba(0, 255, 102, 0.1);
    border-bottom: 1px solid var(--border-color);
    display: flex; align-items: center; padding: 0 15px; gap: 8px;
}
.browser-dot { width: 12px; height: 12px; border-radius: 50%; border: 1px solid var(--border-color); }
.browser-dot.active { background: var(--neon-green); box-shadow: 0 0 8px var(--neon-green); border-color: var(--neon-green); }

/* 导航 */
.header { background: rgba(9, 11, 16, 0.9); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 1000; box-shadow: var(--neon-glow); }
.nav-container { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; height: 70px; padding: 0 20px; }
.logo { font-size: 24px; font-weight: 800; color: #fff; display: flex; align-items: center; gap: 10px; text-shadow: 0 0 10px var(--neon-green); letter-spacing: 1px; }
.logo img { width: 32px; height: 32px; filter: drop-shadow(0 0 5px var(--neon-green)); }
.nav-links { display: flex; gap: 30px; }
.nav-links a { font-size: 15px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; padding: 5px 0; }
.nav-links a:hover, .nav-links a.active { color: var(--neon-green); text-shadow: 0 0 8px var(--neon-green); }

/* 按钮 */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 12px 32px; border-radius: 4px; font-weight: 700; font-size: 16px;
    cursor: pointer; transition: 0.3s; text-transform: uppercase; letter-spacing: 1px;
}
.btn-primary { 
    background: transparent; color: var(--neon-green); border: 1px solid var(--neon-green);
    box-shadow: 0 0 10px rgba(0,255,102,0.2), inset 0 0 10px rgba(0,255,102,0.1);
}
.btn-primary:hover {
    background: var(--neon-green); color: #000; box-shadow: var(--neon-glow-strong);
}
.btn-outline { 
    background: transparent; color: var(--text-muted); border: 1px solid var(--text-muted);
}
.btn-outline:hover {
    color: #fff; border-color: #fff; box-shadow: 0 0 10px rgba(255,255,255,0.3);
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 100px 0; position: relative; }
.sec-title { font-size: 36px; font-weight: 800; margin-bottom: 50px; text-align: center; color: #fff; text-shadow: 0 0 15px var(--neon-green); text-transform: uppercase; letter-spacing: 2px; }

/* Hero区 */
.hero { padding: 120px 0; border-bottom: 1px solid var(--border-color); position: relative; }
/* 环境背景光 */
.hero::before { content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 600px; height: 600px; background: radial-gradient(circle, var(--neon-green-dim) 0%, transparent 70%); z-index: -1; pointer-events: none; }

.hero-content { display: flex; align-items: center; gap: 60px; }
.hero-text { flex: 1; }
.neon-badge { display: inline-block; padding: 4px 12px; border: 1px solid var(--neon-green); color: var(--neon-green); font-size: 12px; font-weight: 700; border-radius: 4px; margin-bottom: 20px; text-shadow: 0 0 5px var(--neon-green); box-shadow: inset 0 0 5px rgba(0,255,102,0.2); letter-spacing: 2px; }
.hero-title { font-size: 56px; font-weight: 900; line-height: 1.1; margin-bottom: 20px; color: #fff; text-shadow: 0 0 20px var(--neon-green); }
.hero-subtitle { font-size: 24px; font-weight: 600; color: var(--neon-green); margin-bottom: 30px; letter-spacing: 3px; }
.hero-desc { font-size: 16px; color: var(--text-muted); margin-bottom: 40px; }
.hero-btns { display: flex; gap: 20px; }
.hero-visual { flex: 1; perspective: 1000px; }
.hero-visual .browser-window { transform: rotateY(-15deg) rotateX(5deg); transition: 0.5s; }
.hero-visual .browser-window:hover { transform: rotateY(0deg) rotateX(0deg); }

/* 核心卖点 */
.feature-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.f-card { text-align: center; padding: 30px 20px; }
.f-card .icon-wrap { width: 60px; height: 60px; margin: 0 auto 20px; display: flex; justify-content: center; align-items: center; border: 1px solid var(--border-color); border-radius: 50%; background: var(--bg-panel); box-shadow: var(--neon-glow); transition: 0.3s; }
.f-card:hover .icon-wrap { background: var(--neon-green); box-shadow: var(--neon-glow-strong); }
.f-card img { width: 30px; height: 30px; filter: drop-shadow(0 0 2px var(--neon-green)); transition: 0.3s; }
.f-card:hover img { filter: brightness(0); }
.f-card h3 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 10px; text-shadow: 0 0 5px rgba(255,255,255,0.5); }
.f-card p { font-size: 13px; color: var(--text-muted); }

/* 详情 */
.detail-modules { display: flex; flex-direction: column; gap: 80px; }
.detail-row { display: flex; align-items: center; gap: 60px; }
.detail-row:nth-child(even) { flex-direction: row-reverse; }
.d-text { flex: 1; }
.d-text h3 { font-size: 32px; font-weight: 800; margin-bottom: 20px; color: var(--neon-green); text-shadow: 0 0 10px rgba(0,255,102,0.3); }
.d-text p { font-size: 16px; color: var(--text-muted); margin-bottom: 25px; line-height: 1.8; }
.d-list { margin-bottom: 25px; }
.d-list li { position: relative; padding-left: 20px; margin-bottom: 10px; font-size: 14px; color: #fff; }
.d-list li::before { content: '>'; position: absolute; left: 0; color: var(--neon-green); font-weight: 900; text-shadow: 0 0 5px var(--neon-green); }
.d-img { flex: 1.2; }

/* 对比表格 */
.compare-wrap { padding: 2px; background: linear-gradient(135deg, rgba(0,255,102,0.5), transparent); border-radius: 10px; }
.compare-box { background: var(--bg-panel); border-radius: 8px; overflow: hidden; }
.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 { font-weight: 700; color: var(--text-muted); text-transform: uppercase; font-size: 14px; letter-spacing: 1px; }
.compare-table .hl { color: var(--neon-green); font-weight: 800; background: var(--neon-green-dim); text-shadow: 0 0 5px rgba(0,255,102,0.5); border-left: 1px solid var(--border-color); border-right: 1px solid var(--border-color); }

/* 下载区 */
.v-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.v-card { padding: 40px 30px; text-align: center; display: flex; flex-direction: column; }
.v-card.rec { border-color: var(--neon-green); box-shadow: var(--neon-glow-strong); }
.v-card.rec::before { content: 'SYSTEM PREFERRED'; display: block; color: #000; background: var(--neon-green); font-size: 12px; font-weight: 800; padding: 4px 0; border-radius: 2px; margin-bottom: 20px; letter-spacing: 2px; box-shadow: 0 0 10px var(--neon-green); }
.v-card h3 { font-size: 24px; font-weight: 800; color: #fff; margin-bottom: 15px; }
.v-card p { font-size: 14px; color: var(--text-muted); margin-bottom: 30px; flex-grow: 1; }
.v-card .btn { width: 100%; }

/* 数据展示 */
.data-sec { background: var(--bg-panel); border: 1px solid var(--border-color); border-radius: 12px; padding: 60px 0; margin: 60px 0; box-shadow: var(--neon-glow); }
.data-flex { display: flex; justify-content: space-around; text-align: center; }
.data-item h4 { font-size: 48px; font-weight: 900; color: var(--neon-green); text-shadow: 0 0 15px var(--neon-green); margin-bottom: 10px; font-family: monospace; }
.data-item p { font-size: 15px; color: #fff; text-transform: uppercase; letter-spacing: 1px; }

/* FAQ */
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.faq-box { padding: 25px; border-left: 4px solid var(--border-color); }
.faq-box:hover { border-left-color: var(--neon-green); background: var(--neon-green-dim); }
.faq-box h4 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.faq-box p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

footer { text-align: center; padding: 40px 0; color: var(--text-muted); font-size: 14px; border-top: 1px solid var(--border-color); background: #05070a; }