/* 抖音风 网站样式表 */
/* 品牌色彩：深紫 #6B3FA0 | 玫瑰金 #D4A574 | 背景 #F5F3F8 */

/* ===== 基础样式 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #F5F3F8;
    color: #2C2C2C;
    line-height: 1.6;
}

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

/* ===== 导航栏 ===== */
.navbar {
    background: linear-gradient(135deg, #6B3FA0 0%, #5a2d8f 100%);
    color: white;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(107, 63, 160, 0.2);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.brand-name {
    font-size: 20px;
    font-weight: bold;
    letter-spacing: 1px;
}

.navbar-menu {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    flex: 1;
}

.nav-item {
    color: white;
    text-decoration: none;
    font-size: 14px;
    padding: 8px 12px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.nav-item:hover,
.nav-item.active {
    background-color: rgba(212, 165, 116, 0.3);
    color: #D4A574;
}

.navbar-search {
    display: flex;
    gap: 5px;
    flex-shrink: 0;
}

.search-input {
    padding: 8px 12px;
    border: none;
    border-radius: 4px;
    width: 150px;
    font-size: 13px;
}

.search-btn {
    padding: 8px 16px;
    background-color: #D4A574;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.search-btn:hover {
    background-color: #c49563;
    transform: translateY(-2px);
}

/* ===== Hero 区域 ===== */
.hero {
    position: relative;
    height: 500px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.txyhcljx1r {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    z-index: 1;
}

.txnsmos7 {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(107, 63, 160, 0.7) 0%, rgba(212, 165, 116, 0.3) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: white;
    animation: fadeInUp 0.8s ease;
}

.hero-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-tagline {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.95;
    letter-spacing: 1px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.btn {
    padding: 12px 30px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 15px;
}

.btn-primary {
    background-color: #D4A574;
    color: white;
}

.btn-primary:hover {
    background-color: #c49563;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(212, 165, 116, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background-color: white;
    color: #6B3FA0;
    transform: translateY(-3px);
}

/* ===== 内容区域 ===== */
.content-section {
    padding: 60px 0;
    background-color: white;
    margin-bottom: 40px;
    border-radius: 8px;
}

.content-section:nth-child(even) {
    background-color: #F5F3F8;
}

.section-title {
    font-size: 36px;
    font-weight: bold;
    color: #6B3FA0;
    margin-bottom: 10px;
    text-align: center;
}

.section-subtitle {
    font-size: 16px;
    color: #666666;
    text-align: center;
    margin-bottom: 40px;
    letter-spacing: 0.5px;
}

/* ===== 视频卡片网格 ===== */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.video-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(107, 63, 160, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(107, 63, 160, 0.2);
}

.video-placeholder {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    background: linear-gradient(135deg, #6B3FA0 0%, #8B5BA8 100%);
    overflow: hidden;
}

.video-placeholder::after {
    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 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.txmewa22 {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    color: white;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 10;
}

.video-card:hover .txmewa22 {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.1);
}

.video-card h3 {
    font-size: 18px;
    color: #6B3FA0;
    padding: 15px 15px 5px;
    font-weight: 600;
}

.video-card p {
    font-size: 14px;
    color: #666666;
    padding: 0 15px 15px;
    line-height: 1.5;
}

/* ===== 功能卡片 ===== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(107, 63, 160, 0.1);
    transition: all 0.3s ease;
    border-left: 4px solid #D4A574;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(107, 63, 160, 0.2);
}

.tx8a7bx4ae {
    font-size: 40px;
    margin-bottom: 15px;
}

.feature-card h3 {
    font-size: 18px;
    color: #6B3FA0;
    margin-bottom: 10px;
    font-weight: 600;
}

.feature-card p {
    font-size: 14px;
    color: #666666;
    line-height: 1.6;
}

/* ===== 功能列表 ===== */
.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.feature-item {
    background: white;
    padding: 20px;
    border-radius: 6px;
    border-left: 4px solid #6B3FA0;
    box-shadow: 0 2px 6px rgba(107, 63, 160, 0.08);
}

.feature-item h3 {
    color: #6B3FA0;
    font-size: 16px;
    margin-bottom: 8px;
    font-weight: 600;
}

.feature-item p {
    color: #666666;
    font-size: 14px;
    line-height: 1.6;
}

/* ===== 专家卡片 ===== */
.experts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
}

.expert-card {
    background: white;
    padding: 25px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(107, 63, 160, 0.1);
    transition: all 0.3s ease;
}

.expert-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(107, 63, 160, 0.2);
}

.txvfm1zef {
    font-size: 60px;
    margin-bottom: 15px;
}

.expert-card h3 {
    font-size: 18px;
    color: #6B3FA0;
    margin-bottom: 5px;
    font-weight: 600;
}

.expert-title {
    color: #D4A574;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
}

.txchrz6u {
    color: #666666;
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.txm50exsi5 {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.txmylwafaq {
    padding: 6px 12px;
    background-color: #F5F3F8;
    color: #6B3FA0;
    text-decoration: none;
    border-radius: 4px;
    font-size: 12px;
    transition: all 0.3s ease;
}

.txmylwafaq:hover {
    background-color: #6B3FA0;
    color: white;
}

/* ===== 合作品牌 ===== */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.txfdeeqsd {
    background: white;
    padding: 30px;
    border-radius: 6px;
    text-align: center;
    color: #6B3FA0;
    font-weight: 600;
    box-shadow: 0 2px 6px rgba(107, 63, 160, 0.1);
    transition: all 0.3s ease;
}

.txfdeeqsd:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(107, 63, 160, 0.15);
}

.partnership-guide {
    background: white;
    padding: 30px;
    border-radius: 8px;
    border-left: 4px solid #D4A574;
}

.partnership-guide h3 {
    color: #6B3FA0;
    margin-bottom: 15px;
    font-size: 18px;
}

.partnership-guide ol {
    margin-left: 20px;
}

.partnership-guide li {
    margin-bottom: 12px;
    color: #2C2C2C;
    line-height: 1.6;
}

/* ===== FAQ 模块 ===== */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    background: white;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 6px rgba(107, 63, 160, 0.1);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px;
    cursor: pointer;
    background: linear-gradient(135deg, #F5F3F8 0%, white 100%);
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: linear-gradient(135deg, #E8E6EB 0%, #F5F3F8 100%);
}

.faq-question h4 {
    color: #6B3FA0;
    font-size: 16px;
    margin: 0;
    font-weight: 600;
}

.tx8g6w4kc {
    color: #D4A574;
    font-size: 24px;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.faq-item.active .tx8g6w4kc {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 18px 18px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 18px;
}

.faq-answer p {
    color: #2C2C2C;
    line-height: 1.8;
    font-size: 14px;
}

/* ===== 用户评论 ===== */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.review-card {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(107, 63, 160, 0.1);
    transition: all 0.3s ease;
}

.review-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(107, 63, 160, 0.15);
}

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

.tx212s9gz {
    font-size: 40px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.reviewer-info h4 {
    color: #6B3FA0;
    font-size: 15px;
    margin-bottom: 3px;
    font-weight: 600;
}

.txh28nsl8 {
    color: #D4A574;
    font-size: 12px;
    margin-bottom: 5px;
}

.tx64bh2 {
    color: #D4A574;
    font-size: 13px;
}

.review-text {
    color: #2C2C2C;
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 12px;
}

.tx7bfkh5em {
    color: #999999;
    font-size: 12px;
}

/* ===== 联系我们 ===== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.contact-box {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(107, 63, 160, 0.1);
    border-top: 4px solid #6B3FA0;
}

.contact-box h3 {
    color: #6B3FA0;
    font-size: 18px;
    margin-bottom: 15px;
    font-weight: 600;
}

.contact-box p {
    color: #2C2C2C;
    font-size: 14px;
    margin-bottom: 10px;
    line-height: 1.7;
}

.contact-box strong {
    color: #6B3FA0;
}

/* ===== 页脚 ===== */
.footer {
    background: linear-gradient(135deg, #6B3FA0 0%, #5a2d8f 100%);
    color: white;
    padding: 50px 0 20px;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h4 {
    color: #D4A574;
    font-size: 16px;
    margin-bottom: 15px;
    font-weight: 600;
}

.footer-section p {
    font-size: 13px;
    line-height: 1.7;
    opacity: 0.9;
}

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

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section a {
    color: white;
    text-decoration: none;
    font-size: 13px;
    opacity: 0.9;
    transition: all 0.3s ease;
}

.footer-section a:hover {
    color: #D4A574;
    opacity: 1;
}

.txmylwafaqs {
    display: flex;
    gap: 10px;
}

.txw8u1816l {
    display: inline-block;
    width: 35px;
    height: 35px;
    background-color: rgba(212, 165, 116, 0.3);
    border-radius: 50%;
    text-align: center;
    line-height: 35px;
    font-size: 12px;
    transition: all 0.3s ease;
}

.txw8u1816l:hover {
    background-color: #D4A574;
    color: #6B3FA0;
}

.footer-bottom {
    border-top: 1px solid rgba(212, 165, 116, 0.3);
    padding-top: 20px;
    text-align: center;
    font-size: 12px;
    opacity: 0.8;
}

.footer-bottom a {
    color: #D4A574;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: white;
}

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

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===== 响应式设计 ===== */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 15px;
    }

    .navbar-menu {
        gap: 10px;
        justify-content: center;
    }

    .nav-item {
        font-size: 12px;
        padding: 6px 10px;
    }

    .navbar-search {
        width: 100%;
    }

    .search-input {
        width: 100%;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-tagline {
        font-size: 16px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 10px;
    }

    .btn {
        width: 100%;
    }

    .section-title {
        font-size: 28px;
    }

    .video-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 15px;
    }

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

    .experts-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

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

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 25px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .navbar-brand {
        width: 100%;
        justify-content: center;
    }

    .navbar-menu {
        flex-direction: column;
        gap: 5px;
    }

    .nav-item {
        font-size: 11px;
        padding: 5px 8px;
    }

    .hero {
        height: 350px;
    }

    .hero-title {
        font-size: 24px;
    }

    .hero-tagline {
        font-size: 14px;
    }

    .section-title {
        font-size: 22px;
    }

    .section-subtitle {
        font-size: 13px;
    }

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

    .content-section {
        padding: 40px 0;
    }
}

/* ===== 懒加载与性能优化 ===== */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 关键CSS内联 */
.navbar {
    will-change: transform;
}

/* 减少重排 */
.video-card {
    contain: layout style paint;
}