/* === 顶部导航栏 === */
.web-nav {
    background: rgba(255,255,255,.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,.06);
    position: sticky;
    top: 0;
    z-index: 1020;
}
.web-nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -.3px;
    color: #1a1a2e;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: opacity .2s;
}
.web-nav-brand:hover {
    opacity: .8;
    color: #1a1a2e;
}
.web-nav-link {
    position: relative;
    font-size: .92rem;
    font-weight: 500;
    color: #555;
    padding: 6px 14px;
    border-radius: 10px;
    text-decoration: none;
    transition: color .2s, background .2s;
}
.web-nav-link:hover {
    color: #1a1a2e;
    background: rgba(0,0,0,.04);
}
.web-nav-post {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 8px 20px;
    border-radius: 24px;
    font-size: .9rem;
    font-weight: 600;
    color: #fff;
    background: #1a1a2e;
    border: none;
    text-decoration: none;
    transition: transform .2s, box-shadow .2s, background .2s;
}
.web-nav-post:hover {
    background: #2a2a42;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(26,26,46,.3);
    color: #fff;
}
.web-nav-toggler {
    border: none;
    padding: 6px 10px;
    background: transparent;
    color: #555;
    font-size: 1.4rem;
}
.web-nav-toggler:focus {
    box-shadow: none;
}