:root {
    --primary: #00E676; /* 高亮广告绿 */
    --primary-hover: #00C853;
    --bg-dark: #0a0a0a;
    --bg-card: #141414;
    --text-main: #ffffff;
    --text-muted: #a0a0a0;
    --border: #222222;
    --shadow-green: 0 10px 40px rgba(0, 230, 118, 0.4);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { 
    font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", 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; }

/* 导航 */
header {
    background: rgba(10, 10, 10, 0.9); backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100;
}
.nav-inner { display: flex; justify-content: space-between; align-items: center; height: 80px; }
.logo { font-size: 28px; font-weight: 900; color: #fff; letter-spacing: -1px; }
.logo span { color: var(--primary); }
.nav-links { display: flex; gap: 30px; }
.nav-links a { font-size: 16px; font-weight: bold; text-transform: uppercase; color: var(--text-muted); }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }

/* KV级 按钮 */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 50px; font-weight: 900; text-transform: uppercase;
    cursor: pointer; transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: none;
}
.btn-kv {
    font-size: 22px; padding: 18px 50px;
    background: linear-gradient(135deg, #00E676 0%, #00B259 100%);
    color: #000; box-shadow: var(--shadow-green);
    animation: pulseKV 2s infinite;
}
.btn-kv:hover { transform: scale(1.05); box-shadow: 0 15px 50px rgba(0, 230, 118, 0.6); }
@keyframes pulseKV { 0% { box-shadow: 0 0 0 0 rgba(0,230,118,0.7); } 70% { box-shadow: 0 0 0 20px rgba(0,230,118,0); } 100% { box-shadow: 0 0 0 0 rgba(0,230,118,0); } }

.btn-secondary {
    font-size: 18px; padding: 15px 40px;
    background: transparent; color: var(--text-main);
    border: 2px solid rgba(255,255,255,0.2);
}
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); background: rgba(0,230,118,0.05); }

/* Hero区 (强视觉中心) */
.hero { 
    min-height: 90vh; display: flex; flex-direction: column; justify-content: center; 
    text-align: center; position: relative; padding: 100px 0 60px;
    background: radial-gradient(circle at 50% 50%, #0a2e1c 0%, #0a0a0a 60%);
}
.hero h1 { font-size: 72px; font-weight: 900; line-height: 1.1; margin-bottom: 20px; letter-spacing: -2px; }
.hero h1 span { color: var(--primary); }
.hero p { font-size: 24px; color: var(--text-muted); font-weight: 500; margin-bottom: 50px; }
.hero-btns { display: flex; justify-content: center; align-items: center; gap: 20px; margin-bottom: 60px; }
.hero-kv-img { 
    max-width: 1000px; margin: 0 auto; 
    box-shadow: 0 30px 80px rgba(0,0,0,0.8), 0 0 60px rgba(0, 230, 118, 0.15);
    border-radius: 12px; border: 1px solid rgba(0, 230, 118, 0.3);
    position: relative; z-index: 2; overflow: hidden;
}
.hero-kv-img img { width: 100%; display: block; }

/* 模块通用 */
section { padding: 100px 0; border-bottom: 1px solid var(--border); }
.sec-title { text-align: center; font-size: 48px; font-weight: 900; margin-bottom: 60px; text-transform: uppercase; letter-spacing: -1px; }

/* 核心卖点 */
.features { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.feat-card {
    background: var(--bg-card); border: 1px solid var(--border); padding: 40px 20px;
    text-align: center; border-radius: 8px; transition: 0.3s;
}
.feat-card:hover { border-color: var(--primary); transform: translateY(-10px); box-shadow: 0 10px 30px rgba(0, 230, 118, 0.1); }
.feat-card img { width: 64px; height: 64px; margin: 0 auto 20px; filter: drop-shadow(0 0 10px rgba(0, 230, 118, 0.5)); }
.feat-card h3 { font-size: 20px; font-weight: 800; margin-bottom: 10px; color: #fff; }
.feat-card p { font-size: 14px; color: var(--text-muted); }

/* 详情 (左右大图排版) */
.kv-detail { display: flex; align-items: center; gap: 60px; margin-bottom: 100px; }
.kv-detail:nth-child(even) { flex-direction: row-reverse; }
.kv-text { flex: 1; }
.kv-text h3 { font-size: 36px; font-weight: 900; margin-bottom: 20px; color: #fff; }
.kv-text p { font-size: 18px; color: var(--text-muted); line-height: 1.8; margin-bottom: 30px; }
.kv-data { display: inline-block; font-size: 24px; font-weight: 900; color: var(--primary); border-left: 4px solid var(--primary); padding-left: 15px; }
.kv-img { flex: 1; border-radius: 12px; overflow: hidden; border: 1px solid var(--border); }
.kv-img img { width: 100%; transition: 0.5s; }
.kv-img:hover img { transform: scale(1.05); }

/* 对比表格 */
.compare-wrapper { background: var(--bg-card); padding: 50px; border-radius: 16px; border: 1px solid var(--border); }
.compare-table { width: 100%; border-collapse: collapse; text-align: center; }
.compare-table th, .compare-table td { padding: 20px; border-bottom: 1px solid var(--border); }
.compare-table th { font-size: 16px; color: var(--text-muted); text-transform: uppercase; font-weight: bold; }
.compare-table .hl { font-size: 20px; font-weight: 900; color: var(--primary); background: rgba(0, 230, 118, 0.05); }

/* 版本下载 */
.v-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.v-card {
    background: var(--bg-card); border: 1px solid var(--border); padding: 50px 30px;
    text-align: center; border-radius: 12px; transition: 0.3s;
}
.v-card:hover { border-color: var(--primary); transform: translateY(-5px); }
.v-card.main-dl { border-color: var(--primary); box-shadow: 0 0 30px rgba(0, 230, 118, 0.15); background: linear-gradient(180deg, rgba(0,230,118,0.05) 0%, var(--bg-card) 100%); }
.v-card h3 { font-size: 32px; font-weight: 900; margin-bottom: 15px; color: #fff; }
.v-card p { font-size: 15px; color: var(--text-muted); margin-bottom: 40px; height: 60px; }

/* 数据展示 */
.data-sec { background: var(--primary); color: #000; padding: 80px 0; text-align: center; border: none; }
.data-flex { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 40px; }
.data-item h4 { font-size: 72px; font-weight: 900; margin-bottom: 5px; line-height: 1; }
.data-item p { font-size: 20px; font-weight: 800; text-transform: uppercase; }

/* FAQ */
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.faq-box { background: var(--bg-card); padding: 30px; border-radius: 8px; border: 1px solid var(--border); }
.faq-box h4 { font-size: 18px; font-weight: bold; color: var(--primary); margin-bottom: 15px; }
.faq-box p { font-size: 15px; color: var(--text-muted); }

footer { padding: 40px 0; text-align: center; color: var(--text-muted); font-size: 14px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; }