:root {
    --bg-base: #060e0a;
    --bg-surface: rgba(13, 30, 22, 0.6);
    --tech-green: #00f28e;
    --tech-green-dim: rgba(0, 242, 142, 0.15);
    --tech-green-glow: rgba(0, 242, 142, 0.5);
    --tech-cyan: #00d4ff;
    --text-main: #f0fdf4;
    --text-muted: #94a3b8;
    --border-light: rgba(0, 242, 142, 0.2);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    background-color: var(--bg-base);
    color: var(--text-main);
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
}

/* 未来感光效背景 */
.ambient-light {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; pointer-events: none;
    background: 
        radial-gradient(circle at 20% 30%, rgba(0, 242, 142, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(0, 212, 255, 0.05) 0%, transparent 40%);
}
.grid-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; pointer-events: none;
    background-image: linear-gradient(var(--border-light) 1px, transparent 1px), linear-gradient(90deg, var(--border-light) 1px, transparent 1px);
    background-size: 60px 60px; opacity: 0.2;
    transform: perspective(500px) rotateX(60deg) translateY(-100px) translateZ(-200px);
    transform-origin: top center;
}

a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
img { max-width: 100%; display: block; border-radius: 8px; }

/* 导航 */
.header { background: rgba(6, 14, 10, 0.8); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border-light); position: sticky; top: 0; z-index: 1000; box-shadow: 0 4px 20px rgba(0,0,0,0.5); }
.nav-wrap { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; padding: 16px 24px; }
.logo { font-size: 22px; font-weight: 800; color: var(--tech-green); display: flex; align-items: center; gap: 10px; text-shadow: 0 0 10px var(--tech-green-glow); }
.logo img { width: 32px; height: 32px; border-radius: 8px; box-shadow: 0 0 8px var(--tech-green-glow); }
.nav-links { display: flex; gap: 32px; }
.nav-links a { font-size: 15px; font-weight: 500; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.nav-links a:hover, .nav-links a.active { color: var(--tech-green); text-shadow: 0 0 8px var(--tech-green-glow); }

/* 科技感按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 36px; border-radius: 4px; font-size: 16px; font-weight: 700; cursor: pointer; transition: 0.3s; letter-spacing: 1px; position: relative; overflow: hidden; z-index: 1; }
.btn::before { content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent); transition: 0.5s; z-index: -1; }
.btn:hover::before { left: 100%; }
.btn-primary { background: linear-gradient(135deg, var(--tech-green), #00c853); color: #000; box-shadow: 0 0 15px var(--tech-green-glow); border: 1px solid var(--tech-green); }
.btn-primary:hover { box-shadow: 0 0 25px var(--tech-green); transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--tech-green); border: 1px solid var(--tech-green); box-shadow: inset 0 0 10px var(--tech-green-dim); }
.btn-outline:hover { background: var(--tech-green-dim); box-shadow: 0 0 15px var(--tech-green-glow); transform: translateY(-2px); }

/* 容器与标题 */
.container { max-width: 1200px; margin: 0 auto; padding: 100px 24px; position: relative; z-index: 1; }
.sec-title { text-align: center; font-size: 36px; font-weight: 800; color: var(--text-main); margin-bottom: 16px; letter-spacing: 2px; }
.sec-title span { color: var(--tech-green); }
.sec-subtitle { text-align: center; font-size: 16px; color: var(--text-muted); margin-bottom: 60px; max-width: 700px; margin-left: auto; margin-right: auto; }

/* Hero区 */
.hero { text-align: center; padding: 120px 24px 60px; position: relative; z-index: 1; }
.hero h1 { font-size: 64px; font-weight: 900; margin-bottom: 20px; background: linear-gradient(to right, var(--text-main), var(--tech-green)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; letter-spacing: 4px; }
.hero .subtitle { font-size: 24px; color: var(--tech-cyan); margin-bottom: 40px; font-weight: 600; letter-spacing: 2px; }
.hero-btns { display: flex; justify-content: center; gap: 24px; margin-bottom: 60px; }
.hero-visual { max-width: 900px; margin: 0 auto; position: relative; border-radius: 12px; padding: 10px; background: linear-gradient(135deg, rgba(0,242,142,0.2), transparent); border: 1px solid var(--border-light); box-shadow: 0 20px 50px rgba(0,0,0,0.5); }
.hero-visual img { border: 1px solid rgba(255,255,255,0.1); }

/* 核心卖点 */
.feature-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; }
.f-box { background: var(--bg-surface); padding: 32px 20px; border-radius: 8px; border: 1px solid var(--border-light); text-align: center; transition: 0.3s; backdrop-filter: blur(10px); position: relative; }
.f-box::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--tech-green); transition: 0.3s; }
.f-box:hover::after { width: 100%; }
.f-box:hover { transform: translateY(-5px); box-shadow: 0 10px 30px var(--tech-green-dim); background: rgba(13, 30, 22, 0.9); }
.f-icon { width: 56px; height: 56px; margin: 0 auto 16px; filter: drop-shadow(0 0 8px var(--tech-green)); }
.f-icon img { filter: invert(70%) sepia(80%) saturate(400%) hue-rotate(100deg) brightness(110%) contrast(110%); }
.f-box h3 { font-size: 16px; font-weight: 700; margin-bottom: 10px; color: var(--text-main); }
.f-box p { font-size: 14px; color: var(--text-muted); }

/* 功能详情 */
.detail-item { display: flex; align-items: center; gap: 60px; margin-bottom: 100px; }
.detail-item: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(--tech-green); display: flex; align-items: center; gap: 12px; }
.d-text h3::before { content: ''; display: inline-block; width: 8px; height: 32px; background: var(--tech-green); box-shadow: 0 0 10px var(--tech-green); }
.d-text p { font-size: 16px; color: var(--text-muted); margin-bottom: 30px; line-height: 1.8; }
.d-data { display: inline-block; padding: 8px 20px; border: 1px solid var(--tech-green); background: var(--tech-green-dim); color: var(--tech-green); font-family: monospace; font-size: 16px; font-weight: bold; border-radius: 4px; }
.d-visual { flex: 1.2; position: relative; }
.d-visual::before { content: ''; position: absolute; inset: -15px; border: 1px solid var(--border-light); border-radius: 12px; z-index: -1; background: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(0,242,142,0.03) 10px, rgba(0,242,142,0.03) 20px); }
.d-visual img { border: 1px solid var(--border-light); box-shadow: 0 10px 30px rgba(0,0,0,0.5); }

/* 数据背书 */
.data-sec { padding: 80px 0; background: linear-gradient(90deg, rgba(0,242,142,0.05), rgba(0,212,255,0.05)); border-top: 1px solid var(--border-light); border-bottom: 1px solid var(--border-light); position: relative; z-index: 1; }
.data-inner { max-width: 1000px; margin: 0 auto; display: flex; justify-content: space-around; align-items: center; text-align: center; }
.data-item h4 { font-size: 56px; font-weight: 900; color: var(--text-main); margin-bottom: 10px; font-family: monospace; text-shadow: 0 0 15px var(--tech-green-glow); }
.data-item p { font-size: 15px; color: var(--tech-green); font-weight: 600; letter-spacing: 2px; }

/* 浏览器对比 */
.compare-box { background: var(--bg-surface); border-radius: 8px; border: 1px solid var(--border-light); overflow: hidden; backdrop-filter: blur(10px); }
.compare-table { width: 100%; border-collapse: collapse; text-align: left; }
.compare-table th, .compare-table td { padding: 20px 24px; border-bottom: 1px solid rgba(255,255,255,0.05); }
.compare-table th { font-weight: 700; color: var(--tech-cyan); font-size: 14px; text-transform: uppercase; background: rgba(0,0,0,0.3); letter-spacing: 1px; }
.compare-table td { font-size: 15px; color: #ccc; }
.compare-table .hl { color: var(--tech-green); font-weight: 700; background: rgba(0, 242, 142, 0.05); border-left: 2px solid var(--tech-green); }

/* 下载版本区 */
.dl-wrap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.dl-card { background: var(--bg-surface); padding: 40px; border-radius: 8px; border: 1px solid var(--border-light); text-align: center; transition: 0.3s; position: relative; }
.dl-card:hover { border-color: var(--tech-green); box-shadow: 0 10px 30px var(--tech-green-dim); transform: translateY(-5px); }
.dl-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 16px; color: var(--text-main); }
.dl-card p { font-size: 14px; color: var(--text-muted); margin-bottom: 30px; height: 60px; }
.dl-card .btn { width: 100%; }
.dl-card.pro { border-color: var(--tech-green); background: linear-gradient(180deg, rgba(0,242,142,0.1) 0%, rgba(13,30,22,0.8) 100%); }
.dl-card.pro h3 { color: var(--tech-green); text-shadow: 0 0 10px var(--tech-green-glow); }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { padding: 24px; border: 1px solid var(--border-light); margin-bottom: 16px; border-radius: 8px; background: var(--bg-surface); transition: 0.3s; }
.faq-item:hover { border-color: var(--tech-green); background: rgba(0, 242, 142, 0.05); }
.faq-item h4 { font-size: 16px; font-weight: 600; color: var(--text-main); margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.faq-item h4::before { content: '>'; color: var(--tech-green); font-weight: 900; }
.faq-item p { font-size: 14px; color: var(--text-muted); line-height: 1.6; padding-left: 20px; }

/* Footer */
.footer { border-top: 1px solid var(--border-light); background: rgba(0,0,0,0.8); padding: 40px 24px; text-align: center; color: var(--text-muted); font-size: 14px; position: relative; z-index: 1; }