html,
body {
    margin: 0;
    color: #fff;
    background-color: #17191E;
    font-family: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", "Segoe UI", Arial, sans-serif;
}

h1,
h2,
h3,
h4,
h5,
h6,
p {
    margin: 0;
    padding: 0;
}

a {
    color: #ffffff;
    transition: all 0.3s ease;
    text-decoration: none;
}

a:hover {
    color: #2F937B;
}

.clearfix::after {
    content: "";
    display: block;
    clear: both;
}

#tf-home,
#tf-home .overlay {
    background-color: #17191E;
    color: #f0f0f0;
}

#tf-home {
    background: transparent;
    color: #cfcfcf;
}

#tf-home .overlay {
    background: transparent;
    height: auto;
}

#tf-menu {
    margin-bottom: 0;
    background: transparent;
    border: 0;
    color: #fff !important;
    padding: 0.75% 0;
    transition: all 0.5s;
}

#tf-menu.stick {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 10000;
    background: rgba(23, 25, 30, 0.8);
    padding: 0.25% 0;
}

#tf-menu.navbar-default .navbar-nav>li>a {
    color: #E6E6E6;
    text-transform: uppercase;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 1px;
}

#tf-menu.navbar-default .navbar-nav>li>a:hover,
#tf-menu.navbar-default .navbar-nav>li>a:focus:hover {
    color: #2F937B;
    background-color: transparent;
}

#tf-menu.navbar-default .navbar-nav>li>a:focus {
    color: #E6E6E6;
    background-color: transparent;
    outline: none;
    box-shadow: none;
}

.logo {
    font-family: 'Playball', cursive;
    font-size: 20px;
    font-weight: bold;
    display: flex;
    align-items: center;
    color: #fff;
    text-decoration: none;
}

.logo img {
    height: 30px;
    width: 30px;
    margin-right: 8px;
}

.navbar-toggle {
    border: none;
    background: transparent !important;
}

.navbar-toggle .icon-bar {
    background-color: #C5C5C5;
}

.navbar-default .navbar-brand.logo {
    color: #E6E6E6 !important;
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    display: block;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    background: rgba(23, 25, 30, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(47, 147, 123, 0.2);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    min-width: 220px;
    width: 220px;
    margin-top: 0;
    padding: 8px 0;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown>a {
    position: relative;
    transition: color 0.3s ease;
}

.dropdown>a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    width: 0;
    height: 2px;
    background: #2F937B;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.dropdown:hover>a::after {
    width: 80%;
}

.dropdown:hover>a {
    color: #2F937B;
}

.dropdown-menu>li>a {
    padding: 12px 20px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    color: #E6E6E6;
    white-space: nowrap;
    font-size: 14px;
    font-weight: 500;
}

.dropdown-menu>li>a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 3px;
    height: 100%;
    background: #2F937B;
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.dropdown-menu>li>a:hover,
.dropdown-menu>li>a:focus:hover {
    background: rgba(47, 147, 123, 0.15);
    color: #2F937B;
    padding-left: 25px;
}

.dropdown-menu>li>a:focus {
    background: transparent;
    color: #E6E6E6;
    outline: none;
    box-shadow: none;
}


.dropdown-menu>li>a:hover::before {
    transform: scaleY(1);
}

.dropdown>a .caret {
    transition: transform 0.3s ease;
    display: inline-block;
    border-top-color: #E6E6E6;
}

.dropdown:hover>a .caret {
    transform: rotate(180deg);
    border-top-color: #2F937B;
}

@media (max-width: 768px) {
    .dropdown-menu {
        position: static;
        float: none;
        width: 100%;
        margin-top: 0;
        box-shadow: none;
        background: rgba(23, 25, 30, 0.98);
    }

    .dropdown:hover .dropdown-menu {
        transform: translateY(0);
    }
}

::-webkit-scrollbar {
    width: 15px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #1e1e1e;
}

::-webkit-scrollbar-thumb {
    background-color: #444;
    border-radius: 8px;
    border: 2px solid #1e1e1e;
}

html {
    scrollbar-color: #444 #1e1e1e;
    scrollbar-width: thin;
    overflow-y: scroll;
}

#tf-menu.navbar-default .navbar-nav>li>a:hover,
#tf-menu.navbar-default .navbar-nav>li>a:focus:hover {
    color: #2F937B !important;
    background-color: transparent !important;
}

#tf-menu.navbar-default .navbar-nav>li>a:focus {
    color: #E6E6E6 !important;
    background-color: transparent !important;
    outline: none !important;
    box-shadow: none !important;
}

#tf-menu.navbar-default .navbar-nav>.active>a,
#tf-menu.navbar-default .navbar-nav>.active>a:hover,
#tf-menu.navbar-default .navbar-nav>.active>a:focus {
    color: #2F937B !important;
    background-color: transparent !important;
    outline: none !important;
    box-shadow: none !important;
}

#tf-menu .dropdown-menu>li>a,
#tf-menu .dropdown-menu>li>a:focus {
    background-color: transparent !important;
    color: #E6E6E6 !important;
    outline: none !important;
    box-shadow: none !important;
}

#tf-menu .dropdown-menu>li>a:hover,
#tf-menu .dropdown-menu>li>a:focus:hover {
    background: rgba(47, 147, 123, 0.15) !important;
    color: #2F937B !important;
}

#tf-menu .dropdown-menu>.active>a,
#tf-menu .dropdown-menu>.active>a:hover,
#tf-menu .dropdown-menu>.active>a:focus {
    background: rgba(47, 147, 123, 0.15) !important;
    color: #2F937B !important;
    outline: none !important;
    box-shadow: none !important;
}

#tf-menu .navbar-brand:focus {
    outline: none !important;
    box-shadow: none !important;
}

#site-nav {
    min-height: 100px;
}

#site-nav.nav-ready {
    min-height: 0;
}

.qq-group-link {
    font-size: 14px;
    letter-spacing: 0.2px;
}

.qq-group-link .qq-group-num {
    font-size: 12px;
    letter-spacing: 0;
    margin-left: 2px;
    font-variant-numeric: tabular-nums;
}

@media (max-width: 768px) {
    .qq-group-link {
        font-size: 13px;
    }

    .qq-group-link .qq-group-num {
        font-size: 12px;
    }
}