:root {
    --primary: #00ff66; /* 科技舞台绿 */
    --primary-glow: rgba(0, 255, 102, 0.5);
    --bg-dark: #07090b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --card-bg: rgba(255, 255, 255, 0.03);
    --border-color: rgba(0, 255, 102, 0.2);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { 
    font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-dark); 
    color: var(--text-main); 
    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; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; position: relative; z-index: 2; }

/* 导航 */
header { 
    position: fixed; top: 0; width: 100%; z-index: 100;
    background: rgba(7, 9, 11, 0.85); backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.nav-inner { display: flex; justify-content: space-between; align-items: center; height: 72px; }
.logo { font-size: 24px; font-weight: 900; color: #fff; letter-spacing: 1px; }
.logo span { color: var(--primary); }
.nav-links { display: flex; gap: 32px; }
.nav-links a { font-size: 14px; font-weight: 600; text-transform: uppercase; color: var(--text-muted); }
.nav-links a:hover, .nav-links a.active { color: var(--primary); text-shadow: 0 0 8px var(--primary-glow); }

/* 按钮 */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 15px 36px; border-radius: 4px; font-weight: 800; font-size: 16px;
    text-transform: uppercase; letter-spacing: 1px; cursor: pointer; transition: 0.3s;
}
.btn-primary { 
    background: var(--primary); color: #000; 
    box-shadow: 0 0 25px var(--primary-glow); border: 1px solid var(--primary);
}
.btn-primary:hover { background: #fff; border-color: #fff; box-shadow: 0 0 35px rgba(255,255,255,0.6); }
.btn-outline { 
    background: transparent; color: var(--text-main); 
    border: 1px solid rgba(255,255,255,0.3); 
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: rgba(0,255,102,0.05); }

/* 海报舞台风 Hero */
.hero {
    min-height: 100vh; display: flex; flex-direction: column; justify-content: center;
    padding-top: 100px; padding-bottom: 60px; text-align: center; position: relative;
}
/* 绿色舞台灯光效果 */
.stage-light {
    position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
    width: 120vw; height: 60vh;
    background: radial-gradient(ellipse at bottom, rgba(0,255,102,0.15) 0%, transparent 70%);
    pointer-events: none; z-index: 1;
}
.release-tag {
    display: inline-block; background: rgba(0,255,102,0.1); color: var(--primary);
    padding: 6px 16px; border-radius: 20px; font-size: 14px; font-weight: 700;
    border: 1px solid var(--border-color); margin-bottom: 24px; letter-spacing: 2px;
}
.hero h1 { font-size: 72px; font-weight: 900; line-height: 1.1; margin-bottom: 24px; letter-spacing: -1px; text-shadow: 0 10px 30px rgba(0,0,0,0.8); }
.hero p { font-size: 22px; color: var(--text-muted); margin-bottom: 50px; max-width: 600px; margin-left: auto; margin-right: auto; }
.hero-btns { display: flex; justify-content: center; gap: 20px; margin-bottom: 80px; position: relative; z-index: 3; }
.browser-stage {
    max-width: 1000px; margin: 0 auto; position: relative; z-index: 3;
    border-radius: 12px; border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5), 0 0 60px rgba(0,255,102,0.2);
    overflow: hidden;
    transform: perspective(1200px) rotateX(5deg);
    transition: transform 0.5s;
}
.browser-stage:hover { transform: perspective(1200px) rotateX(0deg); }
.browser-stage img { width: 100%; }

/* 模块通用 */
section { padding: 100px 0; position: relative; border-bottom: 1px solid rgba(255,255,255,0.02); }
.sec-title { text-align: center; font-size: 40px; font-weight: 900; margin-bottom: 60px; }
.sec-title span { color: var(--primary); }

/* 核心卖点 */
.features { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; }
.feat-card {
    background: var(--card-bg); border: 1px solid rgba(255,255,255,0.05);
    padding: 40px 20px; text-align: center; border-radius: 8px; transition: 0.3s;
}
.feat-card:hover { background: rgba(0,255,102,0.02); border-color: var(--border-color); transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.5); }
.feat-card img { width: 56px; height: 56px; margin: 0 auto 24px; filter: drop-shadow(0 0 10px var(--primary-glow)); }
.feat-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; color: #fff; }
.feat-card p { font-size: 14px; color: var(--text-muted); }

/* 详情 */
.poster-detail { display: flex; align-items: center; gap: 80px; margin-bottom: 100px; }
.poster-detail:nth-child(even) { flex-direction: row-reverse; }
.p-text { flex: 1; }
.p-text h3 { font-size: 36px; font-weight: 900; margin-bottom: 24px; line-height: 1.2; }
.p-text p { font-size: 18px; color: var(--text-muted); margin-bottom: 30px; }
.p-data { display: inline-block; background: rgba(0,255,102,0.1); color: var(--primary); padding: 8px 16px; font-weight: bold; border-left: 3px solid var(--primary); }
.p-img { flex: 1; border-radius: 12px; overflow: hidden; box-shadow: 0 20px 40px rgba(0,0,0,0.5); border: 1px solid rgba(255,255,255,0.05); }

/* 对比 */
.compare-box { background: var(--card-bg); border-radius: 16px; padding: 40px; border: 1px solid rgba(255,255,255,0.05); }
.compare-table { width: 100%; border-collapse: collapse; text-align: center; }
.compare-table th, .compare-table td { padding: 24px; border-bottom: 1px solid rgba(255,255,255,0.05); }
.compare-table th { font-size: 16px; color: var(--text-muted); font-weight: 600; text-transform: uppercase; }
.compare-table .hl { color: var(--primary); font-weight: 800; font-size: 18px; background: rgba(0,255,102,0.02); }

/* 版本 */
.ver-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.ver-box {
    background: var(--card-bg); border: 1px solid rgba(255,255,255,0.05);
    padding: 60px 40px; text-align: center; border-radius: 12px; transition: 0.3s;
}
.ver-box:hover { border-color: var(--primary); transform: translateY(-10px); }
.ver-box.spotlight { border-color: var(--primary); box-shadow: 0 0 40px rgba(0,255,102,0.1); background: linear-gradient(180deg, rgba(0,255,102,0.05) 0%, transparent 100%); }
.ver-box h3 { font-size: 28px; font-weight: 900; margin-bottom: 20px; color: #fff; }
.ver-box p { color: var(--text-muted); margin-bottom: 40px; height: 48px; }

/* 数据展示 */
.data-stage { background: #000; padding: 80px 0; border-top: 1px solid rgba(255,255,255,0.05); border-bottom: 1px solid rgba(255,255,255,0.05); }
.data-flex { display: flex; justify-content: space-around; flex-wrap: wrap; text-align: center; gap: 40px; }
.data-item h4 { font-size: 64px; font-weight: 900; color: #fff; margin-bottom: 10px; line-height: 1; }
.data-item h4 span { color: var(--primary); }
.data-item p { font-size: 18px; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 2px; }

/* FAQ */
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.faq-card { background: rgba(255,255,255,0.02); padding: 32px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.05); }
.faq-card h4 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.faq-card p { color: var(--text-muted); font-size: 15px; }

footer { padding: 50px 0; text-align: center; color: var(--text-muted); font-size: 14px; background: #000; }