/* ============================================
   底部导航栏 — 3Tab (首页/影视专区/个人中心)
   ============================================ */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    flex-shrink: 0;
    height: 56px;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    background: #17191f;
    border-top: 1px solid rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    justify-content: space-around;
    z-index: 100;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    color: rgba(255,255,255,0.4);
    font-size: 10px;
    position: relative;
    transition: color 0.25s;
    padding: 6px 0;
    flex: 1;
    text-decoration: none;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.nav-item svg {
    width: 24px;
    height: 24px;
    stroke: rgba(255,255,255,0.4);
    fill: none;
    stroke-width: 1.8;
    transition: stroke 0.25s;
}

.nav-item span {
    font-weight: 500;
}

.nav-item.active {
    color: var(--accent, #00CC36);
}

.nav-item.active svg {
    stroke: var(--accent, #00CC36);
}

/* 中间影视专区特殊样式 */
.nav-item-center {
    position: relative;
}

.nav-item-center .nav-icon-wrap {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent, #00CC36);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: -10px;
    box-shadow: 0 4px 16px rgba(0,204,54,0.3);
    transition: transform 0.2s, box-shadow 0.2s;
}

.nav-item-center .nav-icon-wrap svg {
    stroke: #fff !important;
    fill: #fff;
    width: 20px;
    height: 20px;
}

.nav-item-center:active .nav-icon-wrap {
    transform: scale(0.92);
}

.nav-item-center span {
    margin-top: 2px;
    color: var(--accent, #00CC36);
    font-weight: 600;
}