:root {
--accent: #e94560;
--dark: #0f0f1a;
--text: #1a1a2e;
--muted: #666;
--bg: #f8f8fc;
--white: #ffffff;
--nav-height: 64px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
font-family: 'Noto Sans SC', sans-serif;
background-color: var(--bg);
color: var(--text);
overflow-x: hidden;
}
/* ── 导航栏 ── */
nav {
position: fixed;
top: 0; left: 0; right: 0;
height: var(--nav-height);
background: rgba(255,255,255,0.92);
backdrop-filter: blur(12px);
-webkit-backdrop-filter: blur(12px);
border-bottom: 1px solid rgba(0,0,0,0.06);
padding: 0 24px;
z-index: 100;
}
.nav-inner {
max-width: 1000px;
width: 100%;
margin: 0 auto;
height: var(--nav-height);
display: flex;
justify-content: space-between;
align-items: center;
}
.logo {
font-size: 18px;
font-weight: 900;
letter-spacing: -0.5px;
color: var(--text);
}
.logo span { color: var(--accent); }
.nav-links a {
color: var(--muted);
text-decoration: none;
margin-left: 32px;
font-size: 14px;
font-weight: 400;
transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent); }

/* ── 页脚 ── */
footer {
background: var(--white);
color: var(--muted);
padding: 16px;
border-top: 1px solid rgba(0,0,0,0.08);
}
.footer-inner {
max-width: 1000px;
margin: 0 auto;
display: flex;
justify-content: space-between;
align-items: center;
}
footer .footer-links a {
color: var(--muted);
text-decoration: none;
font-size: 13px;
margin: 0 16px;
transition: color 0.2s;
}
footer .footer-links a:hover { color: black; }
footer p { font-size: 13px; }

/* ── 动画 ── */
@keyframes fadeUp {
from { opacity: 0; transform: translateY(24px); }
to   { opacity: 1; transform: translateY(0); }
}