/* 共战传奇官网样式（2026-08-11 重制） */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
    background: #0d1117;
    color: #e6edf3;
    line-height: 1.6;
}
.inner { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* 顶部导航 */
#topbar {
    position: sticky; top: 0; z-index: 100;
    background: rgba(13,17,23,0.95); border-bottom: 1px solid #21262d;
    padding: 14px 0;
}
#topbar .inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.logo { font-size: 22px; font-weight: bold; color: #ffd700; letter-spacing: 1px; }
.logo span { font-size: 12px; color: #8b949e; margin-left: 8px; letter-spacing: 2px; }
.nav { display: flex; gap: 22px; }
.nav a { color: #c9d1d9; text-decoration: none; font-size: 14px; transition: color .2s; }
.nav a:hover { color: #ffd700; }

/* Hero */
#hero {
    padding: 90px 0 80px;
    text-align: center;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(255,215,0,0.08) 0%, transparent 60%),
        linear-gradient(180deg, #10161f 0%, #0d1117 100%);
}
#hero h1 {
    font-size: 52px; font-weight: bold; letter-spacing: 4px;
    background: linear-gradient(90deg, #ffd700, #ffaa00, #ffd700);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    margin-bottom: 12px;
}
#hero .slogan { font-size: 20px; color: #ffd700; margin-bottom: 18px; letter-spacing: 2px; }
#hero .desc { font-size: 15px; color: #8b949e; max-width: 640px; margin: 0 auto 34px; }

/* 按钮 */
.btn-main {
    display: inline-block; padding: 14px 44px; border-radius: 8px;
    background: linear-gradient(90deg, #ffd700, #ffaa00); color: #1a0a2e;
    font-size: 16px; font-weight: bold; text-decoration: none; letter-spacing: 2px;
    transition: transform .15s, box-shadow .15s;
}
.btn-main:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(255,215,0,0.3); }
.btn-sub {
    display: inline-block; padding: 13px 40px; border-radius: 8px;
    border: 1px solid #ffd700; color: #ffd700;
    font-size: 16px; font-weight: bold; text-decoration: none; letter-spacing: 2px;
    transition: all .15s; margin-left: 16px;
}
.btn-sub:hover { background: rgba(255,215,0,0.1); }
.hero-btns { margin-top: 6px; }

/* 区块 */
.section { padding: 64px 0; border-bottom: 1px solid #21262d; }
.section h2 { font-size: 30px; text-align: center; margin-bottom: 14px; color: #ffd700; letter-spacing: 2px; }
.section .desc { text-align: center; color: #8b949e; font-size: 15px; margin-bottom: 30px; }

/* 特色卡片 */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; }
.card {
    background: #161b22; border: 1px solid #21262d; border-radius: 12px;
    padding: 28px 22px; text-align: center; transition: border-color .2s, transform .2s;
}
.card:hover { border-color: #ffd700; transform: translateY(-4px); }
.card .icon { font-size: 38px; margin-bottom: 12px; }
.card h3 { font-size: 17px; margin-bottom: 10px; color: #ffd700; }
.card p { font-size: 13px; color: #8b949e; }

/* 下载/注册 */
#download, #register { text-align: center; }
.tip { color: #6e7681; font-size: 13px; margin-top: 14px; }

/* 页脚 */
#footer { padding: 28px 0; text-align: center; color: #6e7681; font-size: 13px; border-top: 1px solid #21262d; }