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

:root {
    --primary-color: #ff6b9d;
    --secondary-color: #c44569;
    --accent-color: #f8a5c2;
    --dark-color: #2d3436;
    --light-color: #f9f9f9;
    --text-color: #333;
    --text-light: #666;
    --border-color: #eee;
    --shadow: 0 2px 15px rgba(0,0,0,0.1);
    --shadow-hover: 0 5px 25px rgba(0,0,0,0.15);
    --gradient: linear-gradient(135deg, #ff6b9d 0%, #c44569 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--light-color);
}

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

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

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

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

/* 糖心vlog 头部导航 */
.header {
    background: #fff;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo img {
    width: 50px;
    height: 50px;
    border-radius: 10px;
}

.logo-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

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

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

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
}

/* 糖心vlog 搜索框 */
.search-bar {
    background: var(--gradient);
    padding: 15px 0;
}

.search-form {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
}

.search-input {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 25px 0 0 25px;
    font-size: 1rem;
    outline: none;
}

.search-btn {
    padding: 12px 25px;
    background: var(--secondary-color);
    color: #fff;
    border: none;
    border-radius: 0 25px 25px 0;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.3s;
}

.search-btn:hover {
    background: var(--dark-color);
}

/* 糖心vlog 横幅区域 */
.banner {
    position: relative;
    height: 500px;
    overflow: hidden;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s;
}

.banner-slide.active {
    opacity: 1;
}

.banner-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
    text-shadow: 2px 2px 10px rgba(0,0,0,0.5);
    z-index: 10;
}

.banner-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.banner-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.banner-btn {
    display: inline-block;
    padding: 15px 40px;
    background: var(--gradient);
    color: #fff;
    border-radius: 30px;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
}

.banner-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255,107,157,0.4);
    color: #fff;
}

/* 通用区块样式 */
.section-padding {
    padding: 60px 0;
}

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

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

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

.section-title.light h2,
.section-title.light p {
    color: #fff;
}

/* 糖心vlog 服务卡片 */
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.service-card p {
    color: var(--text-light);
}

/* 糖心vlog 视频卡片 */
.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
    justify-content: center;
}

.category-tag {
    padding: 8px 20px;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-color);
    transition: all 0.3s;
}

.category-tag:hover,
.category-tag.active {
    background: var(--gradient);
    color: #fff;
    border-color: transparent;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.video-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

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

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

.video-card:hover .video-thumbnail 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%;
    opacity: 0;
    transition: opacity 0.3s;
    cursor: pointer;
}

.play-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 55%;
    transform: translate(-50%, -50%);
    border: 12px solid transparent;
    border-left: 18px solid #fff;
}

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

.video-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0,0,0,0.7);
    color: #fff;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
}

.video-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--gradient);
    color: #fff;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
}

.video-info {
    padding: 20px;
}

.video-info h3 {
    font-size: 1rem;
    margin-bottom: 10px;
    color: var(--dark-color);
    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-light);
    font-size: 0.85rem;
}

.video-stats {
    display: flex;
    gap: 10px;
}

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

.mt-30 {
    margin-top: 30px;
}

.btn-more {
    display: inline-block;
    padding: 12px 30px;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-more:hover {
    background: var(--gradient);
    color: #fff;
    border-color: transparent;
}

/* 糖心vlog 娱乐专区 */
.entertainment-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 60px 0;
}

.entertainment-section .section-title h2,
.entertainment-section .section-title p {
    color: #fff;
}

.entertainment-section .video-card {
    background: rgba(255,255,255,0.95);
}

/* 糖心vlog AI赋能 */
.ai-section {
    background: var(--light-color);
    padding: 60px 0;
}

.ai-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.ai-card {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

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

.ai-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.ai-card h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.ai-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* 糖心vlog 社区功能 */
.community-section {
    background: #fff;
    padding: 60px 0;
}

.community-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.feature-card {
    background: var(--light-color);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--primary-color);
    background: #fff;
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.feature-card h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* 糖心vlog 专家团队 */
.expert-section {
    background: var(--light-color);
    padding: 60px 0;
}

.expert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.expert-card {
    background: #fff;
    padding: 30px 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
}

.expert-avatar {
    width: 100px;
    height: 100px;
    margin: 0 auto 15px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--primary-color);
}

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

.expert-card h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.expert-title {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.expert-credential {
    color: var(--text-light);
    font-size: 0.85rem;
    margin-bottom: 10px;
}

.expert-desc {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 10px;
    line-height: 1.5;
}

.expert-awards {
    color: #f39c12;
    font-size: 0.8rem;
    margin-bottom: 15px;
}

.expert-social {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 15px;
}

.expert-social a {
    padding: 5px 12px;
    background: var(--light-color);
    border-radius: 15px;
    font-size: 0.8rem;
    color: var(--text-light);
}

.expert-social a:hover {
    background: var(--gradient);
    color: #fff;
}

.expert-btns {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.expert-btn {
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

.expert-btn.primary {
    background: var(--gradient);
    color: #fff;
    border: none;
}

.expert-btn:hover {
    opacity: 0.8;
}

/* 糖心vlog 合作品牌 */
.partners-section {
    background: #fff;
    padding: 60px 0;
}

.partners-logo {
    text-align: center;
    margin-bottom: 30px;
}

.partners-logo img {
    max-width: 800px;
    border-radius: 15px;
}

.partners-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.partners-list span {
    padding: 10px 25px;
    background: var(--light-color);
    border-radius: 25px;
    color: var(--text-light);
    font-weight: 500;
}

/* 糖心vlog How-To */
.howto-section {
    background: var(--light-color);
    padding: 60px 0;
}

.howto-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.howto-step {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 15px;
}

.howto-step h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.howto-step p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* 糖心vlog 用户评价 */
.reviews-section {
    background: #fff;
    padding: 60px 0;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-bottom: 40px;
}

.review-card {
    background: var(--light-color);
    padding: 25px;
    border-radius: 15px;
}

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

.review-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.review-info h4 {
    font-size: 1rem;
    color: var(--dark-color);
}

.review-info p {
    font-size: 0.85rem;
    color: var(--text-light);
}

.review-rating {
    color: #f39c12;
}

.review-content {
    color: var(--text-color);
    font-style: italic;
    margin-bottom: 10px;
}

.review-date {
    color: var(--text-light);
    font-size: 0.85rem;
}

.reviews-summary {
    display: flex;
    justify-content: center;
    gap: 60px;
    padding: 30px;
    background: var(--gradient);
    border-radius: 15px;
}

.summary-item {
    text-align: center;
    color: #fff;
}

.summary-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
}

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

/* 糖心vlog FAQ */
.faq-section {
    background: var(--light-color);
    padding: 60px 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

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

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    cursor: pointer;
    font-weight: 500;
    color: var(--dark-color);
}

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

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s, padding 0.3s;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 0 20px 20px;
}

.faq-answer p {
    color: var(--text-light);
}

/* 糖心vlog 联系我们 */
.contact-section {
    background: var(--gradient);
    padding: 60px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.contact-item {
    background: rgba(255,255,255,0.15);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    color: #fff;
}

.contact-item h4 {
    font-size: 0.9rem;
    margin-bottom: 8px;
    opacity: 0.8;
}

.contact-item p {
    font-weight: 500;
}

.company-photos {
    margin-bottom: 40px;
    text-align: center;
}

.company-photos h4 {
    color: #fff;
    margin-bottom: 20px;
}

.photo-grid {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.photo-grid img {
    width: 300px;
    height: 200px;
    object-fit: cover;
    border-radius: 10px;
}

.qrcode-wrap {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 30px;
}

.qrcode-item {
    text-align: center;
    color: #fff;
}

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

.qrcode-item p {
    font-size: 0.9rem;
    line-height: 1.4;
}

.share-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.share-btn {
    width: 45px;
    height: 45px;
    background: rgba(255,255,255,0.2);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    transition: background 0.3s;
}

.share-btn:hover {
    background: rgba(255,255,255,0.4);
    color: #fff;
}

/* 糖心vlog 页脚 */
.footer {
    background: var(--dark-color);
    color: #fff;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.footer-logo img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.footer-logo span {
    font-size: 1.3rem;
    font-weight: bold;
}

.footer-desc {
    color: #aaa;
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.social-links {
    display: flex;
    gap: 10px;
}

.social-link {
    width: 35px;
    height: 35px;
    background: rgba(255,255,255,0.1);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    transition: background 0.3s;
}

.social-link:hover {
    background: var(--primary-color);
    color: #fff;
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: #fff;
}

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

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

.footer-col a {
    color: #aaa;
    font-size: 0.95rem;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #aaa;
    font-size: 0.9rem;
}

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

/* 响应式设计 */
@media (max-width: 1024px) {
    .service-grid,
    .video-grid,
    .ai-features,
    .community-features {
        grid-template-columns: repeat(2, 1fr);
    }

    .expert-grid,
    .howto-steps,
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow);
        gap: 15px;
    }

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

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

    .banner {
        height: 350px;
    }

    .banner-content h1 {
        font-size: 2rem;
    }

    .service-grid,
    .video-grid,
    .ai-features,
    .community-features,
    .reviews-grid {
        grid-template-columns: 1fr;
    }

    .expert-grid,
    .howto-steps,
    .contact-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-logo,
    .social-links {
        justify-content: center;
    }

    .reviews-summary {
        flex-direction: column;
        gap: 20px;
    }

    .qrcode-wrap {
        flex-wrap: wrap;
    }

    .photo-grid {
        flex-direction: column;
        align-items: center;
    }
}

/* 内页通用样式 */
.page-header {
    background: var(--gradient);
    padding: 60px 0;
    text-align: center;
    color: #fff;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 10px;
    font-size: 0.95rem;
}

.breadcrumb a {
    color: rgba(255,255,255,0.8);
}

.breadcrumb span {
    opacity: 0.6;
}

.page-content {
    padding: 60px 0;
}

/* 视频详情页样式 */
.video-player-wrap {
    background: #000;
    padding: 20px 0;
}

.video-player {
    max-width: 900px;
    margin: 0 auto;
    aspect-ratio: 16/9;
    background: #1a1a1a;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.2rem;
    border-radius: 10px;
}

.video-detail {
    max-width: 900px;
    margin: 40px auto;
    padding: 0 20px;
}

.video-detail h1 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.video-detail-meta {
    display: flex;
    gap: 20px;
    color: var(--text-light);
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.video-description {
    color: var(--text-color);
    line-height: 1.8;
}

/* 工具卡片样式 */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.tool-card {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

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

.tool-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.tool-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.tool-card p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.tool-btn {
    display: inline-block;
    padding: 10px 25px;
    background: var(--gradient);
    color: #fff;
    border-radius: 20px;
    font-weight: 500;
}

.tool-btn:hover {
    opacity: 0.9;
    color: #fff;
}

@media (max-width: 768px) {
    .tool-grid {
        grid-template-columns: 1fr;
    }
}