:root {
    --bg-dark: #050B14;
    --bg-panel: #0A1628;
    --color-cyan: #00F2FE;
    --color-blue: #4FACFE;
    --color-green: #10B981;
    --text-white: #FFFFFF;
    --text-gray: #94A3B8;
    --gradient-tech: linear-gradient(135deg, #00F2FE 0%, #4FACFE 100%);
    --shadow-cyan: 0 0 20px rgba(0, 242, 254, 0.4);
    --border-tech: 1px solid rgba(0, 242, 254, 0.2);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", -apple-system, sans-serif; background-color: var(--bg-dark); color: var(--text-gray); line-height: 1.6; }
a { text-decoration: none; color: inherit; transition: 0.3s; }
img { max-width: 100%; display: block; border-radius: 8px; }

/* 芯片纹理背景 */
.chip-bg { position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: -1; background-image: 
    linear-gradient(rgba(0, 242, 254, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 242, 254, 0.05) 1px, transparent 1px);
    background-size: 60px 60px; pointer-events: none; opacity: 0.5; }
.chip-bg::after { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: radial-gradient(circle at 50% 30%, transparent, var(--bg-dark) 70%); }

/* 导航 */
.header { background: rgba(5, 11, 20, 0.85); backdrop-filter: blur(12px); border-bottom: var(--border-tech); position: sticky; top: 0; z-index: 100; }
.nav-wrap { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; height: 80px; padding: 0 20px; }
.logo { font-size: 24px; font-weight: bold; color: var(--text-white); display: flex; align-items: center; gap: 12px; }
.logo img { width: 36px; height: 36px; filter: drop-shadow(0 0 8px var(--color-cyan)); }
.nav-links { display: flex; gap: 30px; }
.nav-links a { font-weight: 500; color: var(--text-gray); font-size: 15px; }
.nav-links a:hover, .nav-links a.active { color: var(--color-cyan); text-shadow: 0 0 8px var(--color-cyan); }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 16px 36px; border-radius: 4px; font-size: 16px; font-weight: bold; cursor: pointer; transition: 0.3s; letter-spacing: 1px; }
.btn-primary { background: var(--gradient-tech); color: #000; box-shadow: var(--shadow-cyan); border: none; }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 0 30px rgba(0, 242, 254, 0.6); }
.btn-outline { background: transparent; color: var(--color-cyan); border: 2px solid var(--color-cyan); }
.btn-outline:hover { background: rgba(0, 242, 254, 0.1); }

/* 通用容器 */
.container { max-width: 1200px; margin: 0 auto; padding: 100px 20px; position: relative; z-index: 10; }
.sec-title { text-align: center; font-size: 38px; font-weight: bold; color: var(--text-white); margin-bottom: 20px; text-transform: uppercase; letter-spacing: 2px; }
.sec-subtitle { text-align: center; font-size: 16px; color: var(--color-cyan); margin-bottom: 60px; font-family: monospace; letter-spacing: 3px; }

/* Hero 区 */
.hero { text-align: center; padding: 100px 20px 60px; position: relative; z-index: 10; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -50%; left: 50%; transform: translateX(-50%); width: 800px; height: 800px; background: radial-gradient(circle, rgba(0,242,254,0.15) 0%, transparent 70%); z-index: -1; }
.hero-tag { display: inline-block; border: 1px solid var(--color-cyan); color: var(--color-cyan); padding: 6px 16px; border-radius: 20px; font-size: 13px; font-weight: bold; margin-bottom: 24px; box-shadow: 0 0 10px rgba(0,242,254,0.2) inset; }
.hero h1 { font-size: 64px; font-weight: 900; color: var(--text-white); margin-bottom: 20px; letter-spacing: 1px; }
.hero h1 span { background: var(--gradient-tech); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero .subtitle { font-size: 22px; color: var(--text-gray); margin-bottom: 40px; }
.hero-btns { display: flex; justify-content: center; gap: 24px; margin-bottom: 60px; }
.hero-img { max-width: 1000px; margin: 0 auto; position: relative; padding: 10px; background: linear-gradient(135deg, rgba(0,242,254,0.2), rgba(79,172,254,0.1)); border-radius: 12px; border: var(--border-tech); box-shadow: 0 20px 50px rgba(0,0,0,0.5); }
.hero-img 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: 20px; }
.f-card { background: var(--bg-panel); border: var(--border-tech); border-radius: 8px; padding: 30px 15px; text-align: center; transition: 0.3s; position: relative; overflow: hidden; }
.f-card::after { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gradient-tech); transform: scaleX(0); transition: 0.3s; }
.f-card:hover::after { transform: scaleX(1); }
.f-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-cyan); background: rgba(10, 22, 40, 0.9); }
.f-card img { width: 56px; height: 56px; margin: 0 auto 20px; filter: drop-shadow(0 0 8px var(--color-cyan)); }
.f-card h3 { font-size: 18px; color: var(--text-white); margin-bottom: 10px; }
.f-card p { font-size: 13px; color: var(--text-gray); line-height: 1.5; }

/* 功能详情 - 蓝绿芯片风格 */
.detail-item { display: flex; align-items: center; gap: 60px; margin-bottom: 80px; background: var(--bg-panel); border: var(--border-tech); border-radius: 12px; padding: 40px; position: relative; }
.detail-item::before { content: ''; position: absolute; top: 20px; bottom: 20px; left: 20px; width: 1px; background: rgba(0,242,254,0.2); }
.detail-item:nth-child(even) { flex-direction: row-reverse; }
.detail-item:nth-child(even)::before { left: auto; right: 20px; }
.d-text { flex: 1; padding: 0 20px; }
.d-text h3 { font-size: 32px; color: var(--color-cyan); margin-bottom: 20px; text-shadow: 0 0 10px rgba(0,242,254,0.3); }
.d-text p { font-size: 16px; color: var(--text-gray); line-height: 1.8; margin-bottom: 30px; }
.d-data { display: inline-flex; align-items: center; gap: 15px; background: rgba(0,242,254,0.1); border: 1px solid var(--color-cyan); padding: 10px 20px; border-radius: 4px; }
.d-data strong { color: var(--text-white); font-size: 24px; }
.d-data span { color: var(--color-cyan); font-size: 14px; font-family: monospace; }
.d-img { flex: 1.2; }
.d-img img { box-shadow: 0 10px 30px rgba(0,0,0,0.5); border: 1px solid rgba(255,255,255,0.05); }

/* 数据背书 */
.data-sec { background: linear-gradient(90deg, #050B14, #0A1628, #050B14); border-top: var(--border-tech); border-bottom: var(--border-tech); padding: 60px 0; margin: 40px 0; }
.data-inner { max-width: 1000px; margin: 0 auto; display: flex; justify-content: space-around; text-align: center; }
.data-item h4 { font-size: 50px; font-weight: 900; background: var(--gradient-tech); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 10px; }
.data-item p { font-size: 16px; color: var(--text-gray); font-family: monospace; }

/* 浏览器对比 */
.compare-box { background: var(--bg-panel); border: var(--border-tech); border-radius: 8px; overflow: hidden; }
.compare-table { width: 100%; border-collapse: collapse; text-align: center; }
.compare-table th, .compare-table td { padding: 20px; border-bottom: 1px solid rgba(255,255,255,0.05); border-right: 1px solid rgba(255,255,255,0.05); }
.compare-table th { background: rgba(0,242,254,0.05); color: var(--color-cyan); font-weight: bold; }
.compare-table td { color: var(--text-gray); }
.compare-table td.hl { color: var(--text-white); font-weight: bold; background: rgba(0,242,254,0.1); border-left: 2px solid var(--color-cyan); border-right: 2px solid var(--color-cyan); }
.compare-table tr:last-child td { border-bottom: none; }

/* 下载卡片 */
.dl-wrap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.dl-card { background: var(--bg-panel); border: var(--border-tech); border-radius: 8px; padding: 40px 30px; text-align: center; transition: 0.3s; position: relative; }
.dl-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-cyan); }
.dl-card.pro { border-color: var(--color-cyan); background: rgba(0,242,254,0.05); }
.dl-card.pro::before { content: "性能首选"; position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--gradient-tech); color: #000; font-weight: bold; padding: 4px 16px; border-radius: 20px; font-size: 13px; }
.dl-card h3 { font-size: 24px; color: var(--text-white); margin-bottom: 15px; }
.dl-card p { font-size: 14px; color: var(--text-gray); margin-bottom: 30px; height: 42px; }
.dl-card .btn { width: 100%; font-size: 15px; }

/* FAQ */
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.faq-item { background: var(--bg-panel); border: var(--border-tech); padding: 30px; border-radius: 8px; }
.faq-item h4 { font-size: 18px; color: var(--color-cyan); margin-bottom: 15px; display: flex; align-items: flex-start; gap: 10px; }
.faq-item h4::before { content: ">>"; color: var(--text-gray); font-size: 14px; margin-top: 2px; }
.faq-item p { font-size: 14px; color: var(--text-gray); line-height: 1.8; padding-left: 24px; }

/* Footer */
.footer { border-top: var(--border-tech); background: #02060C; text-align: center; padding: 40px 20px; color: var(--text-gray); font-size: 14px; position: relative; z-index: 10; }