/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    color: #333;
}

/* 自定义导航栏样式 */
.navbar-custom {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 0;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    padding: 10px 0;
    transition: all 0.3s ease;
}

.navbar-custom:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.navbar-custom .navbar-brand {
    color: #fff;
    font-size: 24px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-custom .navbar-brand i {
    font-size: 28px;
}

.navbar-custom .navbar-nav > li > a {
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 15px 20px;
}

.navbar-custom .navbar-nav > li > a:hover,
.navbar-custom .navbar-nav > li > a:focus {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.navbar-custom .navbar-nav > .active > a,
.navbar-custom .navbar-nav > .active > a:hover,
.navbar-custom .navbar-nav > .active > a:focus {
    color: #fff;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

/* 用户头像样式 */
.user-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    margin-right: 8px;
    border: 2px solid #fff;
}

.user-dropdown {
    display: flex;
    align-items: center;
}

/* 登录按钮样式 */
.btn-login {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 8px 20px !important;
    margin-top: 8px;
    transition: all 0.3s ease;
}

.btn-login:hover {
    background: rgba(255, 255, 255, 0.3) !important;
    transform: translateY(-2px);
}

/* 下拉菜单样式 */
.navbar-custom .dropdown-menu {
    background: #fff;
    border: none;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
    margin-top: 10px;
}

.navbar-custom .dropdown-menu > li > a {
    color: #333;
    padding: 10px 20px;
    transition: all 0.3s ease;
}

.navbar-custom .dropdown-menu > li > a:hover {
    background: #f5f5f5;
    color: #667eea;
    padding-left: 25px;
}

/* 基础样式 */
.form-group{padding-bottom:0;margin:0 0 15px 0}
.elsetext{top:0;color:#adadad;font-size:20px}
.elseview{height:150px}
.tubiao{background-color:transparent;font-size:100px;color:#adadad;width:100px;height:100px}
.view{padding-top:70px;padding-bottom:80px}
.video_view{width:100%;max-height:450px;min-height:300px}
.image_view{max-width:100%;max-height:450px}
.image{max-width:100%;max-height:450px}
.nav-tabs{background:#fff}
.nav-tabs>li>a{color:#000;border:0;margin:0}
.nav-tabs>li>a:hover{background-color:transparent;border:0}
.nav-tabs>li>a,.nav-tabs>li>a:focus,.nav-tabs>li>a:hover{background-color:transparent!important;border:0!important;color:#222!important;font-weight:500}
.nav-tabs>li.disabled>a,.nav-tabs>li.disabled>a:hover{color:rgba(255,255,255,.5)}
.nav-tabs>li.active{background-color:#ddd;border-bottom-color:#000}
.nav-tabs>li.active>a{border-bottom-color:#000}
.form-group label.control-label{font-size:16px;color:#333}
.fileinfo-table{max-width:80%}
@media (max-width:767px){.fileinfo-table{max-width:100%}}
.progress{height:20px;margin-bottom:10px}
.filename{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.aplayer .aplayer-pic{height:100px;width:100px}
.aplayer .aplayer-info .aplayer-music .aplayer-title{font-size:18px}
.aplayer .aplayer-info{margin-left:100px;padding:25px 7px 0 10px;height:66px;box-sizing:border-box}
.filelist>tbody>tr>td{max-width:360px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.form-inline .form-control{display:inline-block;width:auto;vertical-align:middle}
.form-inline .form-group{display:inline-block;margin-bottom:0;vertical-align:middle}
.searchbox{margin-top: -10px;}
.searchbox button{margin-top: 8px;}
@media (min-width:767px){.searchbox{float: right;}}
.videoplayer{width: 100%; height: 530px;}
@media (max-width:1999px){.videoplayer{height: 500px;}}
@media (max-width:991px){.videoplayer{height: 450px;}}
@media (max-width:767px){.videoplayer{height: 400px;}}
#loginform .loginbtn{margin: 15px;}
.loginbtn i{padding-top: 15px;}

/* 高级首页样式 */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0;
    text-align: center;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-top: 30px;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-logo {
    margin-bottom: 30px;
    color: #fff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
    line-height: 1.5;
}

.hero-buttons {
    margin-bottom: 60px;
}

.btn-hero {
    font-size: 18px;
    padding: 15px 40px;
    border-radius: 50px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    border: none;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.btn-hero:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.feature-item {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    min-width: 120px;
}

.feature-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.feature-item i {
    font-size: 30px;
    margin-bottom: 10px;
    display: block;
    color: #fff;
}

.feature-item span {
    font-size: 14px;
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 20px;
        margin-top: 20px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .btn-hero {
        font-size: 16px;
        padding: 12px 30px;
    }
    
    .hero-features {
        gap: 20px;
    }
    
    .feature-item {
        min-width: 100px;
        padding: 15px;
    }
    
    .feature-item i {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 14px;
    }
    
    .hero-features {
        flex-direction: column;
        align-items: center;
    }
    
    .feature-item {
        width: 80%;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-section {
    animation: fadeInUp 0.8s ease-out;
}

.hero-logo {
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-title {
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-subtitle {
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-buttons {
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.hero-features {
    animation: fadeInUp 0.8s ease-out 1s both;
}

.feature-item:nth-child(1) {
    animation: fadeInUp 0.8s ease-out 1.1s both;
}

.feature-item:nth-child(2) {
    animation: fadeInUp 0.8s ease-out 1.2s both;
}

.feature-item:nth-child(3) {
    animation: fadeInUp 0.8s ease-out 1.3s both;
}

.feature-item:nth-child(4) {
    animation: fadeInUp 0.8s ease-out 1.4s both;
}

/* 加载动画 */
@-webkit-keyframes stretchdelay{0%,100%,40%{-webkit-transform:scaleY(.4)}20%{-webkit-transform:scaleY(1)}}@keyframes stretchdelay{0%,100%,40%{-webkit-transform:scaleY(.4);transform:scaleY(.4)}20%{-webkit-transform:scaleY(1);transform:scaleY(1)}}.colorful_loading_frame{position:fixed;top:0;left:0;z-index:99999;width:100%;height:100%;background:rgba(0,0,0,.5);color:red;text-align:center;font-size:2em}.colorful_loading{margin:25% auto;width:50px;height:60px;text-align:center;font-size:10px}.colorful_loading>i{display:inline-block;margin-right:3px;width:6px;height:100%;background-color:#fff;-webkit-animation:stretchdelay 1.2s infinite ease-in-out;animation:stretchdelay 1.2s infinite ease-in-out}.colorful_loading .rect2{-webkit-animation-delay:-1.1s;animation-delay:-1.1s}.colorful_loading .rect3{-webkit-animation-delay:-1s;animation-delay:-1s}.colorful_loading .rect4{-webkit-animation-delay:-.9s;animation-delay:-.9s}.colorful_loading .rect5{-webkit-animation-delay:-.8s;animation-delay:-.8s}