/* ==================== AI影视圈 - 全局样式 ==================== */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #f59e0b;
    --success: #10b981;
    --danger: #ef4444;
    --info: #06b6d4;
    --dark: #1e293b;
    --gray: #64748b;
    --light-bg: #f8fafc;
    --card-bg: #ffffff;
    --border: #e2e8f0;
    --text: #334155;
    --text-muted: #94a3b8;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--light-bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ==================== 导航栏 ==================== */
.navbar {
    background: linear-gradient(135deg, #1e1b4b, #312e81);
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
}

.navbar-brand .logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--secondary), #f97316);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.navbar-nav a {
    color: #c7d2fe;
    padding: 8px 16px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
}

.navbar-nav a:hover {
    color: #fff;
    background: rgba(255,255,255,0.1);
}

.navbar-nav .btn-nav {
    background: var(--primary);
    color: #fff;
    font-weight: 500;
}

.navbar-nav .btn-nav:hover { background: var(--primary-dark); }

.nav-user {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 14px;
}

.nav-user .avatar-sm {
    width: 32px; height: 32px; border-radius: 50%; background: var(--primary-light);
    display: flex; align-items: center; justify-content: center; font-size: 14px; color: #fff;
}

.badge-notif {
    background: var(--danger);
    color: #fff;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 10px;
    margin-left: 4px;
}

/* ==================== 首页 Hero ==================== */
.hero {
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 40%, #4c1d95 100%);
    padding: 80px 0 100px;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.hero h1 span { color: var(--secondary); }

.hero p {
    font-size: 18px;
    color: #c7d2fe;
    max-width: 600px;
    margin: 0 auto 40px;
}

/* ==================== 两大入口卡片 ==================== */
.entry-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: -60px;
    padding: 0 20px;
    position: relative;
    z-index: 10;
}

.entry-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
    border: 2px solid transparent;
}

.entry-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.12);
}

.entry-card.director-card:hover { border-color: var(--primary); }
.entry-card.actor-card:hover { border-color: var(--secondary); }

.entry-card .card-icon {
    width: 80px; height: 80px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 36px;
    margin: 0 auto 20px;
}

.entry-card.director-card .card-icon {
    background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
}

.entry-card.actor-card .card-icon {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
}

.entry-card h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.entry-card p {
    color: var(--gray);
    margin-bottom: 20px;
    font-size: 14px;
    line-height: 1.8;
}

.entry-card .video-placeholder {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray);
    font-size: 14px;
    margin-bottom: 20px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover { background: var(--primary-dark); color: #fff; }

.btn-secondary {
    background: var(--secondary);
    color: #fff;
}

.btn-secondary:hover { background: #d97706; color: #fff; }

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

.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
    border-radius: 6px;
}

.btn-xs {
    padding: 4px 10px;
    font-size: 12px;
    border-radius: 4px;
}

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #059669; color: #fff; }

.btn-info { background: var(--info); color: #fff; }
.btn-info:hover { background: #0891b2; color: #fff; }

/* ==================== 区块标题 ==================== */
.section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
}

.section-title h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.section-title p {
    color: var(--gray);
    font-size: 15px;
}

/* ==================== 影片卡片 ==================== */
.script-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.script-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    transition: transform 0.2s, box-shadow 0.2s;
}

.script-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.script-card .card-cover {
    height: 180px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    font-weight: 700;
}

.script-card .card-cover.style-1 { background: linear-gradient(135deg, #f093fb, #f5576c); }
.script-card .card-cover.style-2 { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.script-card .card-cover.style-3 { background: linear-gradient(135deg, #43e97b, #38f9d7); }
.script-card .card-cover.style-4 { background: linear-gradient(135deg, #fa709a, #fee140); }
.script-card .card-cover.style-5 { background: linear-gradient(135deg, #a18cd1, #fbc2eb); }
.script-card .card-cover.style-6 { background: linear-gradient(135deg, #ffecd2, #fcb69f); }

.script-card .card-body {
    padding: 16px;
}

.script-card .card-body h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.script-card .card-body .meta {
    font-size: 12px;
    color: var(--gray);
    margin-bottom: 12px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.script-card .card-body .description {
    font-size: 13px;
    color: var(--text);
    line-height: 1.6;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.script-card .card-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* ==================== 状态标签 ==================== */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
}

.badge-success { background: #d1fae5; color: #065f46; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-primary { background: #e0e7ff; color: #3730a3; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-secondary { background: #f1f5f9; color: #475569; }

/* ==================== 管理页面布局 ==================== */
.admin-layout {
    display: flex;
    min-height: calc(100vh - 64px);
}

.admin-sidebar {
    width: 240px;
    background: #1e293b;
    color: #fff;
    padding: 20px 0;
    flex-shrink: 0;
}

.admin-sidebar .sidebar-header {
    padding: 0 20px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 12px;
}

.admin-sidebar .sidebar-header h3 {
    font-size: 16px;
    color: #94a3b8;
}

.admin-sidebar .nav-item {
    display: block;
    padding: 12px 20px;
    color: #cbd5e1;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.2s;
}

.admin-sidebar .nav-item:hover,
.admin-sidebar .nav-item.active {
    background: rgba(99, 102, 241, 0.2);
    color: #fff;
    border-right: 3px solid var(--primary);
}

/* 侧边栏折叠 */
.admin-sidebar .sidebar-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.admin-sidebar .sidebar-toggle {
    background: transparent;
    border: none;
    color: #94a3b8;
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 4px;
    transition: all 0.2s;
}

.admin-sidebar .sidebar-toggle:hover {
    color: #fff;
    background: rgba(255,255,255,0.1);
}

.admin-sidebar .sidebar-nickname {
    font-size: 12px;
    color: #94a3b8;
    margin-top: 6px;
}

.admin-sidebar .nav-icon {
    display: inline-block;
    width: 22px;
    text-align: center;
    margin-right: 8px;
}

.admin-sidebar .nav-text {
    display: inline;
}

.admin-sidebar.collapsed {
    width: 60px;
    transition: width 0.25s ease;
}

.admin-sidebar {
    transition: width 0.25s ease;
}

.admin-sidebar.collapsed .sidebar-header {
    padding: 16px 0;
    text-align: center;
}

.admin-sidebar.collapsed .sidebar-title {
    justify-content: center;
}

.admin-sidebar.collapsed .sidebar-header h3,
.admin-sidebar.collapsed .sidebar-nickname {
    display: none;
}

.admin-sidebar.collapsed .nav-item {
    padding: 12px 0;
    text-align: center;
}

.admin-sidebar.collapsed .nav-icon {
    margin-right: 0;
    font-size: 18px;
}

.admin-sidebar.collapsed .nav-text {
    display: none;
}

.admin-sidebar.collapsed .nav-item .badge {
    display: none;
}

.admin-content {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
}

.admin-content .page-header {
    margin-bottom: 24px;
}

.admin-content .page-header h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
}

.admin-content .page-header p {
    color: var(--gray);
    font-size: 14px;
}

/* ==================== 表格 ==================== */
.table-container {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    overflow: hidden;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th {
    background: #f8fafc;
    padding: 12px 16px;
    text-align: left;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray);
    border-bottom: 2px solid var(--border);
}

table td {
    padding: 12px 16px;
    font-size: 14px;
    border-bottom: 1px solid var(--border);
}

table tr:hover { background: #f8fafc; }

/* ==================== 表单 ==================== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text);
    transition: border-color 0.2s;
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2364748b' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* ==================== 卡片统计 ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.stat-card .stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--gray);
    margin-top: 4px;
}

/* ==================== 登录/注册页 ==================== */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e1b4b, #312e81);
}

.auth-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 40px;
    width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.auth-card h2 {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
    color: var(--dark);
}

.auth-card .subtitle {
    text-align: center;
    color: var(--gray);
    font-size: 14px;
    margin-bottom: 30px;
}

.auth-card .role-selector {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.auth-card .role-option {
    flex: 1;
    padding: 12px;
    border: 2px solid var(--border);
    border-radius: 10px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 14px;
    font-weight: 500;
}

.auth-card .role-option:hover { border-color: var(--primary-light); }
.auth-card .role-option.active { border-color: var(--primary); background: #e0e7ff; }

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-danger { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-info { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

/* ==================== 题目/考试 ==================== */
.question-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.question-card .q-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 16px;
}

.question-card .option {
    display: block;
    padding: 10px 14px;
    margin-bottom: 8px;
    border: 2px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 14px;
}

.question-card .option:hover { border-color: var(--primary-light); background: #f8fafc; }
.question-card .option input { margin-right: 8px; }

/* ==================== 标签页 ==================== */
.tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 24px;
    border-bottom: 2px solid var(--border);
    padding-bottom: 0;
}

.tab-btn {
    padding: 10px 20px;
    border: none;
    background: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s;
}

.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }

.tab-content { display: none; }
.tab-content.active { display: block; }

/* ==================== 三视图上传区域 ==================== */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    transition: all 0.2s;
    cursor: pointer;
}

.upload-zone:hover {
    border-color: var(--primary);
    background: #f8fafc;
}

.upload-zone .upload-icon {
    font-size: 36px;
    margin-bottom: 8px;
}

.upload-zone p { color: var(--gray); font-size: 14px; }

.preview-img {
    max-width: 100%;
    max-height: 200px;
    border-radius: 8px;
    object-fit: contain;
}

/* ==================== 模态框 ==================== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal-overlay.show { display: flex; }

.modal-box {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 30px;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.modal-box h3 { font-size: 20px; margin-bottom: 20px; }

/* ==================== 页脚 ==================== */
.footer {
    background: var(--dark);
    color: #94a3b8;
    text-align: center;
    padding: 30px;
    font-size: 13px;
    margin-top: 60px;
}

/* ==================== 移动端适配 ==================== */
@media (max-width: 768px) {
    .entry-cards { grid-template-columns: 1fr; }
    .hero h1 { font-size: 32px; }
    .admin-layout { flex-direction: column; }
    .admin-sidebar { width: 100%; display: flex; overflow-x: auto; padding: 10px; }
    .admin-sidebar.collapsed { width: 100%; }
    .admin-sidebar.collapsed .sidebar-header { padding: 0 20px 20px; text-align: left; }
    .admin-sidebar.collapsed .sidebar-title { justify-content: space-between; }
    .admin-sidebar.collapsed .sidebar-header h3,
    .admin-sidebar.collapsed .sidebar-nickname { display: block; }
    .admin-sidebar.collapsed .nav-item { padding: 8px 16px; text-align: left; }
    .admin-sidebar.collapsed .nav-icon { margin-right: 8px; font-size: 14px; }
    .admin-sidebar.collapsed .nav-text { display: inline; }
    .admin-sidebar.collapsed .nav-item .badge { display: inline; }
    .admin-sidebar .nav-item { white-space: nowrap; border-right: none; padding: 8px 16px; }
    .admin-content { padding: 20px; }
    .form-row { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
}

/* ==================== 加载动画 ==================== */
.spinner {
    display: inline-block;
    width: 20px; height: 20px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* ==================== 进度条 ==================== */
.progress-bar {
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar .fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s;
}

.fill-primary { background: var(--primary); }
.fill-success { background: var(--success); }
.fill-warning { background: var(--secondary); }
.fill-danger { background: var(--danger); }