/* 麻花星空无痕mv - 主样式文件 */
/* 00706.hk - 影视传媒公司+视频社区 */

/* CSS Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #8B5CF6;
    --secondary-color: #EC4899;
    --accent-color: #F59E0B;
    --dark-bg: #0F0F1A;
    --card-bg: #1A1A2E;
    --text-primary: #FFFFFF;
    --text-secondary: #A0AEC0;
    --gradient-primary: linear-gradient(135deg, #8B5CF6 0%, #EC4899 100%);
    --gradient-dark: linear-gradient(180deg, #0F0F1A 0%, #1A1A2E 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary-color);
}

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: rgba(15, 15, 26, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(139, 92, 246, 0.2);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    height: 45px;
    width: auto;
}

.logo-text {
    font-size: 1.3rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation */
.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 8px 0;
    position: relative;
    transition: all 0.3s ease;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.nav a:hover::after,
.nav a.active::after {
    width: 100%;
}

.nav a:hover {
    color: var(--secondary-color);
}

/* Search Box */
.search-box {
    background: rgba(26, 26, 46, 0.8);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 25px;
    padding: 20px;
    margin: 80px auto 20px;
    max-width: 600px;
}

.search-form {
    display: flex;
    gap: 10px;
}

.search-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 20px;
    padding: 12px 20px;
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.3);
}

.search-input::placeholder {
    color: var(--text-secondary);
}

.search-btn {
    background: var(--gradient-primary);
    border: none;
    border-radius: 20px;
    padding: 12px 25px;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(139, 92, 246, 0.4);
}

/* Hero Section */
.hero {
    padding: 120px 0 60px;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/hero-banner.jpg') center/cover no-repeat;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 40px 20px;
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero h2 {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-weight: 400;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 30px;
    line-height: 1.8;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 35px;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.4);
    color: white;
}

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

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

/* Section Titles */
.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 15px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.section-title p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Video Cards Grid */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.video-card {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.video-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.2);
    border-color: rgba(139, 92, 246, 0.3);
}

.video-thumb {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.video-card:hover .video-thumb img {
    transform: scale(1.1);
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(139, 92, 246, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
}

.video-card:hover .play-btn {
    opacity: 1;
}

.play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-left: 18px solid white;
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    margin-left: 5px;
}

.video-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
}

.video-info {
    padding: 18px;
}

.video-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.video-stats {
    display: flex;
    gap: 15px;
}

.video-stats span {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Expert Cards */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.expert-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(139, 92, 246, 0.1);
    transition: all 0.3s ease;
}

.expert-card:hover {
    border-color: rgba(139, 92, 246, 0.3);
    box-shadow: 0 15px 35px rgba(139, 92, 246, 0.15);
}

.expert-header {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.expert-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-color);
}

.expert-info h4 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.expert-title {
    color: var(--secondary-color);
    font-size: 0.95rem;
    margin-bottom: 8px;
}

.expert-credentials {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.credential-tag {
    background: rgba(139, 92, 246, 0.2);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
}

.expert-bio {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.expert-actions {
    display: flex;
    gap: 15px;
}

.expert-actions .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
}

/* Partner Logos */
.partner-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 30px;
    align-items: center;
}

.partner-logo {
    background: rgba(255, 255, 255, 0.05);
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
}

.partner-logo:hover {
    background: rgba(139, 92, 246, 0.1);
    transform: scale(1.05);
}

.partner-logo img {
    max-height: 50px;
    filter: grayscale(100%) brightness(1.5);
    transition: filter 0.3s ease;
}

.partner-logo:hover img {
    filter: grayscale(0%) brightness(1);
}

/* Reviews Section */
.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
}

.review-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 25px;
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.review-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
}

.review-user h5 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 3px;
}

.review-user span {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.review-stars {
    color: var(--accent-color);
    margin-bottom: 12px;
}

.review-content {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* FAQ Section */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    border-radius: 12px;
    margin-bottom: 15px;
    border: 1px solid rgba(139, 92, 246, 0.1);
    overflow: hidden;
}

.faq-question {
    padding: 20px 25px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: rgba(139, 92, 246, 0.1);
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 25px 20px;
    max-height: 500px;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.contact-info {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 35px;
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.contact-info h4 {
    font-size: 1.3rem;
    margin-bottom: 25px;
    color: var(--primary-color);
}

.contact-item {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.contact-icon {
    width: 45px;
    height: 45px;
    background: rgba(139, 92, 246, 0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-detail h5 {
    font-size: 0.95rem;
    margin-bottom: 5px;
}

.contact-detail p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.qr-codes {
    display: flex;
    gap: 30px;
    margin-top: 30px;
}

.qr-item {
    text-align: center;
}

.qr-item img {
    width: 120px;
    height: 120px;
    border-radius: 10px;
    margin-bottom: 10px;
}

.qr-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Social Share */
.social-share {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

.share-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(139, 92, 246, 0.2);
    color: var(--primary-color);
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.share-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

/* Footer */
.footer {
    background: rgba(10, 10, 20, 0.95);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(139, 92, 246, 0.2);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 12px;
}

.footer-col a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.footer-col a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(139, 92, 246, 0.1);
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.update-time {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Breadcrumb */
.breadcrumb {
    padding: 100px 0 20px;
    background: var(--card-bg);
}

.breadcrumb-list {
    display: flex;
    gap: 10px;
    align-items: center;
    list-style: none;
    font-size: 0.9rem;
}

.breadcrumb-list li::after {
    content: '/';
    margin-left: 10px;
    color: var(--text-secondary);
}

.breadcrumb-list li:last-child::after {
    display: none;
}

.breadcrumb-list a {
    color: var(--text-secondary);
}

.breadcrumb-list a:hover {
    color: var(--primary-color);
}

.breadcrumb-list li:last-child {
    color: var(--primary-color);
}

/* Page Header */
.page-header {
    padding: 40px 0;
    text-align: center;
    background: var(--gradient-dark);
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Feature Cards */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 35px;
    text-align: center;
    border: 1px solid rgba(139, 92, 246, 0.1);
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: rgba(139, 92, 246, 0.3);
    transform: translateY(-5px);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
}

.feature-card h4 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Tool Cards */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
}

.tool-card {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(139, 92, 246, 0.1);
    transition: all 0.3s ease;
}

.tool-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 15px 35px rgba(139, 92, 246, 0.2);
}

.tool-thumb {
    height: 180px;
    overflow: hidden;
}

.tool-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.tool-card:hover .tool-thumb img {
    transform: scale(1.1);
}

.tool-info {
    padding: 25px;
}

.tool-info h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.tool-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 15px;
    line-height: 1.6;
}

.tool-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tool-tag {
    background: rgba(139, 92, 246, 0.15);
    color: var(--primary-color);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
}

/* Community Section */
.community-banner {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 50px;
}

.community-banner img {
    width: 100%;
    height: 350px;
    object-fit: cover;
}

.community-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to right, rgba(15, 15, 26, 0.9), rgba(15, 15, 26, 0.3));
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 50px;
}

.community-overlay h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.community-overlay p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 25px;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin: 50px 0;
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Responsive */
@media (max-width: 992px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--dark-bg);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        border-bottom: 1px solid rgba(139, 92, 246, 0.2);
    }

    .nav.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero h2 {
        font-size: 1.2rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .expert-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header-inner {
        padding: 12px 15px;
    }

    .logo img {
        height: 35px;
    }

    .logo-text {
        font-size: 1rem;
    }

    .section {
        padding: 50px 0;
    }

    .section-title h2 {
        font-size: 1.8rem;
    }

    .video-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .qr-codes {
        justify-content: center;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .community-overlay {
        padding: 30px;
    }

    .community-overlay h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .search-form {
        flex-direction: column;
    }

    .search-btn {
        width: 100%;
    }

    .hero h1 {
        font-size: 1.6rem;
    }

    .page-header h1 {
        font-size: 1.8rem;
    }
}

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

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

/* Lazy Load Placeholder */
.lazy-load {
    background: linear-gradient(90deg, var(--card-bg) 25%, rgba(139, 92, 246, 0.1) 50%, var(--card-bg) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}