#bg { position: fixed; top: 0; bottom: 0; right: 0; left: 0; z-index: -2; background-color: #000; background-repeat: none; background-position: center; background-size: cover; }

#bg-mask { position: fixed; top: 0; bottom: 0; right: 0; left: 0; z-index: -1; background-color: rgba(0, 0, 0, 0.8); background-image: url(../img/mask.png); background-repeat: repeat; }

.header .navbar-brand { padding: 0; }
.header .navbar { margin: 0; }

.product-list { width: 900px; list-style: none; padding: 0; margin: 0 auto; }
.product-list .product { margin-bottom: 100px; }
.product-list .product-img img { width: 100%; }
.product-list .product-tit { color: #fff; }

.product-desc { padding: 30px; }