/* 电视频道订阅平台 - 自定义样式 */

/* 全局样式 */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gradient-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
}

/* 导航栏样式 */
.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: rgba(255, 255, 255, 0.8) !important;
}

/* 主要内容区域 */
.main-content {
    min-height: calc(100vh - 200px);
}

/* 卡片样式 */
.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.card-img-top {
    border-radius: 15px 15px 0 0;
    height: 200px;
    object-fit: cover;
}

/* 按钮样式 */
.btn {
    border-radius: 25px;
    font-weight: 500;
    padding: 0.5rem 1.5rem;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--gradient-bg);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
    transform: translateY(-2px);
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* 英雄区域 */
.hero-section {
    background: var(--gradient-bg);
    color: white;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="white" opacity="0.1"><polygon points="1000,100 1000,0 0,100"/></svg>');
    background-size: cover;
}

.hero-content {
    position: relative;
    z-index: 2;
}

/* 特色频道区域 */
.featured-channels {
    padding: 80px 0;
    background: var(--light-color);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-bg);
    border-radius: 2px;
}

/* 频道卡片 */
.channel-card {
    position: relative;
    overflow: hidden;
}

.channel-card .card-body {
    padding: 1.5rem;
}

.channel-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.channel-duration {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.featured-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--warning-color);
    color: var(--dark-color);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* 表单样式 */
.form-control {
    border-radius: 10px;
    border: 2px solid #e9ecef;
    padding: 0.75rem 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

/* 登录/注册页面 */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-bg);
}

.auth-card {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    max-width: 400px;
    width: 100%;
}

.auth-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--dark-color);
}

/* 分页样式 */
.pagination .page-link {
    border-radius: 10px;
    margin: 0 2px;
    border: none;
    color: var(--primary-color);
    font-weight: 500;
}

.pagination .page-item.active .page-link {
    background: var(--gradient-bg);
    border: none;
}

/* 订阅状态标签 */
.status-badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.status-active {
    background: rgba(25, 135, 84, 0.1);
    color: var(--success-color);
}

.status-expired {
    background: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
}

.status-pending {
    background: rgba(255, 193, 7, 0.1);
    color: #856404;
}

/* 统计卡片 */
.stats-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    border-left: 4px solid var(--primary-color);
}

.stats-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stats-label {
    color: var(--secondary-color);
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 2rem;
    }

    .auth-card {
        padding: 2rem;
        margin: 1rem;
    }

    .card-img-top {
        height: 150px;
    }
}

/* 手机端适配 */
@media (max-width: 576px) {
    /* 导航栏适配 */
    .navbar-brand {
        font-size: 1.2rem;
    }

    .navbar-nav .nav-link {
        padding: 0.75rem 1rem;
        font-size: 0.95rem;
    }

    /* 容器适配 */
    .container {
        padding-left: 10px;
        padding-right: 10px;
    }

    /* 卡片适配 */
    .card {
        margin-bottom: 1rem;
        border-radius: 10px;
    }

    .card-body {
        padding: 1rem;
    }

    /* 按钮适配 */
    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }

    .btn-sm {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
}

/* 手机竖屏适配 */
@media (max-width: 576px) and (orientation: portrait) {
    /* 视频播放器竖屏适配 */
    .video-container {
        margin: 0 -10px;
    }

    .video-container video {
        width: 100vw !important;
        height: 40vh !important;
        max-height: 300px;
    }

    /* 播放器控制按钮 */
    .player-controls {
        padding: 0.5rem;
        justify-content: center;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .player-controls .btn {
        min-width: 44px;
        height: 44px;
        padding: 0.5rem;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* 频道列表适配 */
    .channel-list {
        max-height: 50vh;
        overflow-y: auto;
    }

    .channel-item {
        padding: 1rem;
        margin-bottom: 0.5rem;
        border-radius: 8px;
    }

    /* 搜索框适配 */
    .search-container {
        margin-bottom: 1rem;
    }

    .search-container .form-control {
        font-size: 16px; /* 防止iOS缩放 */
    }

    /* 表单适配 */
    .form-control {
        font-size: 16px; /* 防止iOS缩放 */
        padding: 0.8rem 1rem;
    }

    /* 模态框适配 */
    .modal-dialog {
        margin: 0.5rem;
    }

    .modal-content {
        border-radius: 10px;
    }
}

/* 手机横屏适配 */
@media (max-width: 896px) and (orientation: landscape) and (max-height: 576px) {
    /* 导航栏横屏优化 */
    .navbar {
        padding: 0.25rem 0;
    }

    .navbar-brand {
        font-size: 1rem;
    }

    .navbar-nav .nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }

    /* 视频播放器横屏适配 */
    .video-container {
        margin: 0;
    }

    .video-container video {
        width: 100% !important;
        height: calc(100vh - 120px) !important;
        max-height: none;
    }

    /* 播放器控制按钮横屏 */
    .player-controls {
        position: absolute;
        top: 10px;
        right: 10px;
        background: rgba(0, 0, 0, 0.7);
        border-radius: 8px;
        padding: 0.5rem;
        z-index: 10;
    }

    .player-controls .btn {
        min-width: 36px;
        height: 36px;
        padding: 0.25rem;
        margin: 0 0.25rem;
    }

    /* 频道列表横屏适配 */
    .channel-sidebar {
        position: fixed;
        left: -300px;
        top: 0;
        width: 300px;
        height: 100vh;
        background: white;
        z-index: 1000;
        transition: left 0.3s ease;
        overflow-y: auto;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    }

    .channel-sidebar.show {
        left: 0;
    }

    /* 横屏时隐藏不必要的元素 */
    .hero-section {
        padding: 40px 0;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }

    /* 容器适配 */
    .container {
        max-width: 100%;
        padding: 0 15px;
    }

    /* 卡片横屏适配 */
    .card {
        margin-bottom: 0.5rem;
    }

    .card-body {
        padding: 0.75rem;
    }
}

/* 超小屏幕适配 */
@media (max-width: 320px) {
    .navbar-brand span {
        display: none;
    }

    .navbar-brand i {
        font-size: 1.5rem;
    }

    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }

    .card-body {
        padding: 0.75rem;
    }

    .form-control {
        padding: 0.6rem 0.8rem;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 工具提示样式 */
.tooltip-inner {
    background: var(--dark-color);
    border-radius: 8px;
    font-size: 0.875rem;
}

/* 模态框样式 */
.modal-content {
    border-radius: 15px;
    border: none;
}

.modal-header {
    border-bottom: 1px solid #e9ecef;
    border-radius: 15px 15px 0 0;
}

.modal-footer {
    border-top: 1px solid #e9ecef;
    border-radius: 0 0 15px 15px;
}