/* 糖心vlog - 主样式表 */
/* wwtztj.cn - 影视传媒公司+视频社区 */

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

:root {
    --primary-color: #ff6b9d;
    --secondary-color: #c44569;
    --accent-color: #f8a5c2;
    --dark-color: #2d3436;
    --light-color: #ffeef3;
    --white: #ffffff;
    --gray: #636e72;
    --gradient-primary: linear-gradient(135deg, #ff6b9d 0%, #c44569 100%);
    --gradient-secondary: linear-gradient(135deg, #f8a5c2 0%, #ff6b9d 100%);
    --shadow: 0 4px 15px rgba(255, 107, 157, 0.2);
    --shadow-hover: 0 8px 25px rgba(255, 107, 157, 0.35);
}

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

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

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

/* Header Styles */
.header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    font-size: 1rem;
    font-weight: 500;
    color: var(--dark-color);
    padding: 8px 0;
    position: relative;
}

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

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

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

/* Search Box */
.search-box {
    background: var(--light-color);
    padding: 15px 0;
    margin-top: 75px;
}

.search-container {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 12px 50px 12px 20px;
    border: 2px solid var(--accent-color);
    border-radius: 25px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 10px rgba(255, 107, 157, 0.3);
}

.search-btn {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--gradient-primary);
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    color: var(--white);
    cursor: pointer;
    transition: transform 0.3s ease;
}

.search-btn:hover {
    transform: translateY(-50%) scale(1.05);
}

/* Hero Banner */
.hero {
    background: var(--gradient-primary);
    padding: 80px 0;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/banner-girl.jpg') center/cover;
    opacity: 0.15;
}

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

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 30px;
    opacity: 0.95;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 40px;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    display: block;
}

.stat-label {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* Section Styles */
.section {
    padding: 70px 0;
}

.section-alt {
    background: var(--light-color);
}

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

.section-title h2 {
    font-size: 2rem;
    color: var(--dark-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-title p {
    color: var(--gray);
    font-size: 1.1rem;
}

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

.video-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.video-thumb {
    position: relative;
    padding-top: 56.25%;
    overflow: hidden;
}

.video-thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.video-card:hover .video-thumb img {
    transform: scale(1.05);
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 107, 157, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-left: 18px solid var(--white);
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    margin-left: 4px;
}

.video-card:hover .play-btn {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.1);
}

.video-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.75);
    color: var(--white);
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
}

.video-info {
    padding: 15px;
}

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

.video-meta {
    display: flex;
    justify-content: space-between;
    color: var(--gray);
    font-size: 0.85rem;
}

.video-views::before {
    content: '▶ ';
}

/* Service Cards */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 25px;
}

.service-card {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
}

.service-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--dark-color);
}

.service-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

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

.expert-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    text-align: center;
}

.expert-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.expert-info {
    padding: 20px;
}

.expert-name {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.expert-title {
    color: var(--primary-color);
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.expert-desc {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.expert-btn {
    display: inline-block;
    padding: 8px 20px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 20px;
    font-size: 0.9rem;
    transition: transform 0.3s ease;
}

.expert-btn:hover {
    transform: scale(1.05);
}

/* Partner Logos */
.partner-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
    align-items: center;
}

.partner-logo {
    width: 120px;
    height: 60px;
    background: var(--white);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    font-weight: 600;
    color: var(--gray);
}

/* Testimonials */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.testimonial-card {
    background: var(--white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.testimonial-text {
    font-style: italic;
    color: var(--gray);
    margin-bottom: 15px;
    line-height: 1.7;
}

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

.testimonial-avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--gradient-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 600;
}

.testimonial-name {
    font-weight: 600;
}

.testimonial-role {
    font-size: 0.85rem;
    color: var(--gray);
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.contact-card {
    background: var(--white);
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
}

.contact-card h4 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.contact-card p {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 8px;
}

.qrcode-img {
    width: 120px;
    height: 120px;
    margin: 15px auto;
    border-radius: 8px;
}

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

.faq-item {
    background: var(--white);
    margin-bottom: 15px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

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

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary-color);
}

.faq-answer {
    padding: 0 20px 20px;
    color: var(--gray);
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-item.active .faq-question::after {
    content: '-';
}

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

.share-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.share-btn:hover {
    transform: scale(1.1);
}

.share-wechat { background: #07c160; }
.share-weibo { background: #e6162d; }
.share-douyin { background: #000000; }
.share-bilibili { background: #fb7299; }

/* Footer */
.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 50px 0 20px;
}

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

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary-color);
}

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

.footer-col li {
    margin-bottom: 10px;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s ease;
}

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

.footer-qrcodes {
    display: flex;
    gap: 20px;
}

.footer-qrcode {
    text-align: center;
}

.footer-qrcode img {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    margin-bottom: 8px;
}

.footer-qrcode span {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

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

/* Breadcrumb */
.breadcrumb {
    padding: 15px 0;
    background: var(--light-color);
    margin-top: 75px;
}

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

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

.breadcrumb-list li:last-child::after {
    content: '';
}

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

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

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    border-radius: 2px;
}

/* AI Section */
.ai-features {
    background: url('../images/ai-tools-bg.jpg') center/cover;
    position: relative;
}

.ai-features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(45, 52, 54, 0.85);
}

.ai-features .container {
    position: relative;
    z-index: 1;
}

.ai-features .section-title h2,
.ai-features .section-title p {
    color: var(--white);
}

.ai-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    color: var(--white);
}

.ai-card h3 {
    margin-bottom: 12px;
}

.ai-card p {
    opacity: 0.85;
    font-size: 0.95rem;
}

/* Community Section */
.community-features {
    background: url('../images/community-bg.jpg') center/cover;
    position: relative;
}

.community-features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.9), rgba(196, 69, 105, 0.9));
}

.community-features .container {
    position: relative;
    z-index: 1;
}

.community-features .section-title h2,
.community-features .section-title p {
    color: var(--white);
}

.community-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    color: var(--white);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        display: flex;
    }

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

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

    .hero-stats {
        flex-wrap: wrap;
        gap: 30px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .section-title h2 {
        font-size: 1.6rem;
    }

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

    .footer-col h4::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .footer-qrcodes {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 50px 0;
    }

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

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

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

/* Lazy Loading Placeholder */
.lazy-load {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

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

/* Page specific styles */
.page-header {
    background: var(--gradient-primary);
    padding: 40px 0;
    color: var(--white);
    text-align: center;
    margin-top: 75px;
}

.page-header h1 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.page-content {
    padding: 50px 0;
}

/* Tool cards for creation tools page */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.tool-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.tool-card:hover {
    transform: translateY(-5px);
}

.tool-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.tool-info {
    padding: 20px;
}

.tool-info h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.tool-info p {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.tool-btn {
    display: inline-block;
    padding: 10px 25px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 25px;
    font-size: 0.9rem;
}

/* Community topic cards */
.topic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.topic-card {
    background: var(--white);
    padding: 20px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-color);
}

.topic-card h3 {
    font-size: 1rem;
    margin-bottom: 10px;
}

.topic-meta {
    display: flex;
    gap: 15px;
    color: var(--gray);
    font-size: 0.85rem;
}


/* 视频标签样式 */
.video-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* EEAT信任信号样式 */
.trust-signals {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
    padding: 30px;
    background: var(--light-color);
    border-radius: 15px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.trust-icon {
    font-size: 1.5rem;
}

.trust-text {
    font-size: 0.9rem;
    color: var(--dark-color);
    font-weight: 500;
}

/* 专家资质样式 */
.expert-credentials {
    font-size: 0.85rem;
    color: var(--secondary-color);
    font-weight: 600;
    margin: 5px 0;
}

.expert-works {
    font-size: 0.85rem;
    color: var(--gray);
    margin: 10px 0;
    padding: 8px 12px;
    background: var(--light-color);
    border-radius: 6px;
}

/* 话题卡片样式 */
.topic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.topic-card {
    background: var(--white);
    border-radius: 15px;
    padding: 25px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

.topic-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.topic-card h3 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.topic-card p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.topic-meta {
    display: flex;
    gap: 15px;
    font-size: 0.85rem;
    color: var(--gray);
}

/* 响应式优化 */
@media (max-width: 768px) {
    .trust-signals {
        flex-direction: column;
        align-items: center;
    }
    
    .trust-item {
        width: 100%;
        justify-content: center;
    }
    
    .topic-grid {
        grid-template-columns: 1fr;
    }
}