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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 配色变量 */
:root {
    --primary-dark: #1a1f3a;
    --primary-blue: #2d3561;
    --gradient-start: #ff6b35;
    --gradient-end: #8b5cf6;
    --accent-orange: #ff6b35;
    --accent-purple: #8b5cf6;
    --text-white: #ffffff;
    --text-light: #f8fafc;
    --text-gray: #64748b;
    --background-light: #f8fafc;
    --card-background: #ffffff;
    --border-color: #e2e8f0;
    --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-large: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--text-white);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-large);
}

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

.btn-secondary:hover {
    background: var(--text-white);
    color: var(--primary-dark);
}

.btn-tickets{
    padding: 6px 12px;
    font-size: 14px;
    white-space: nowrap;
    writing-mode: horizontal-tb;
    text-orientation: mixed;
    direction: ltr;
}

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
}

.btn-full {
    /*width: 100%;*/
    width: 70%;
}

/* 导航栏（已迁移至 css/navbar.css） */






























/* 导航栏移动端响应式样式（已迁移至 css/navbar.css） */

/* 导航栏移动端响应式样式（≤480px，已迁移至 css/navbar.css） */

/* Hero 区域 */
.hero {
    min-height: 90vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-white);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url(https://aimakersummit.com/img/banner.png?1014);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -2;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(26, 31, 58, 0.85) 0%, 
        rgba(26, 31, 58, 0.85) 50%,
        rgba(26, 31, 58, 0.8) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
    padding: 0 20px;
    padding-bottom: 120px;
    z-index: 1;
}

.hero-logo {
    margin-bottom: 30px;
}



.hero-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: 1px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-date {
    font-size: 1rem;
    margin-top: 30px;
    margin-bottom: 6px;
    color: var(--text-light);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-main-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-top: 80px;
    margin-bottom: 12px;
    color: var(--text-white);
    line-height: 1.2;
    text-align: center;
}

.hero-content h4 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-light);
    margin: 15px 0;
    text-align: center;
    letter-spacing: 0.5px;
}

.hero-content p:not(.hero-date) {
    margin-bottom: 24px;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 50px;
    color: var(--text-light);
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-orange);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.hero-org {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.organize {
    padding-block: calc(var(--spacing) * 2);
    padding-inline: calc(var(--spacing) * 4);
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center; 
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
}

.organized {
    background-color: #f8fafc;
    padding: 24px 32px;
    border-radius: 10px 10px 0 0;
    position: relative;
    width: auto;
    min-width: fit-content;
    color: var(--primary-dark);
    display: flex;
    justify-content: center;
    align-items: center; 
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    white-space: nowrap;
    margin-top: 5px;
    text-decoration: none;
}

.cta-separator {
    color: var(--text-light);
    font-size: 1rem;
    font-weight: 500;
    margin: 0 10px;
}

/* 通用样式 */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary-dark);
}

.section-subtitle {
    font-size: 1.3rem;
    color: var(--text-gray);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 讲师展示 */
.speakers {
    padding: 100px 0;
    background: #f8fafc;
}

.speakers .section-title {
    text-align: center;
    margin-bottom: 60px;
    color: var(--primary-dark);
    font-size: 2.5rem;
    font-weight: 700;
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
    margin-bottom: 40px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.speaker-card {
    background: white;
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    text-decoration: none;

}

.speaker-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    border-color: #cbd5e1;
}

.speaker-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    transition: all 0.3s ease;
}

.speaker-avatar .avatar-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.speaker-card:hover .speaker-avatar {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.speaker-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    text-align: center;
}

.speaker-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
    color: var(--accent-orange);
    line-height: 1.3;
}

.speaker-title {
    font-size: 0.9rem;
    color: #64748b;
    margin: 0;
    font-weight: 400;
    line-height: 1.2;
}

.speaker-company {
    font-size: 0.85rem;
    color: #64748b;
    margin: 0;
    line-height: 1.2;
}

.speakers-note {
    text-align: center;
    color: #64748b;
    font-style: italic;
    margin-top: 40px;
    font-size: 0.9rem;
}

/* 响应式布局 */
@media (max-width: 1024px) {
    .speakers-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 25px;
    }
    
    .organize {
        font-size: 1.1rem;
    }
    
    .organized {
        padding: 22px 28px;
        font-size: 1.1rem;
        width: auto;
        min-width: fit-content;
        border-radius: 8px 8px 0 0;
        white-space: nowrap;
        margin-top: 5px;
        box-shadow: none;
    }
}

@media (max-width: 768px) {
    .speakers {
        padding: 80px 0;
    }
    
    .speakers .section-title {
        font-size: 2rem;
        margin-bottom: 40px;
    }
    
    .speakers-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
        padding: 0 20px;
    }
    
    .speaker-card {
        padding: 20px;
        gap: 12px;
    }
    
    .speaker-avatar {
        width: 70px;
        height: 70px;
    }
    
    .speaker-name {
        font-size: 1rem;
    }
    
    .organize {
        font-size: 1rem;
        padding-block: calc(var(--spacing) * 1.5);
        padding-inline: calc(var(--spacing) * 3);
    }
    
    .organized {
        padding: 20px 24px;
        font-size: 1rem;
        width: auto;
        min-width: fit-content;
        border-radius: 6px 6px 0 0;
        white-space: nowrap;
        margin-top: 5px;
        box-shadow: none;
    }
    
    .speaker-title {
        font-size: 0.85rem;
    }
    
    .speaker-company {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .speakers {
        padding: 60px 0;
    }
    
    .speakers .section-title {
        font-size: 1.8rem;
    }
    
    .speakers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
        padding: 0 15px;
    }
    
    .speaker-card {
        padding: 16px;
        gap: 10px;
    }
    
    .speaker-avatar {
        width: 60px;
        height: 60px;
    }
    
    .speaker-name {
        font-size: 0.95rem;
    }
    
    .speaker-title {
        font-size: 0.8rem;
    }
    
    .speaker-company {
        font-size: 0.75rem;
    }
    
    .organized {
        padding: 18px 20px;
        /*font-size: 0.8rem;*/
        font-size: 1.1rem;
        box-shadow: none;
    }
}

/* 大会专题 */
.topics {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
}

.topics::before {
    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="%23e2e8f0" stroke-width="0.5" opacity="0.3"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>') repeat;
    opacity: 0.5;
    pointer-events: none;
}

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

.topics .section-title {
    text-align: center;
    margin-bottom: 20px;
    color: var(--primary-dark);
}

.topics .section-subtitle {
    text-align: center;
    margin-bottom: 60px;
    color: var(--text-gray);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.topic-card {
    background: var(--card-background);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow-medium);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    text-decoration: none;
}

.topic-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
}

.topic-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-large);
    border-color: var(--accent-orange);
}

.topic-header {
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    gap: 20px;
    margin-bottom: 10px;
}

.topic-header .topic-icon {
    margin-left: auto;
    margin-right: 30px;
}

.topic-icon {
    width: 60px;
    height: 60px;
    position: relative;
    flex-shrink: 0;
    order: 2;
    overflow: visible;
}

.topic-name {
    order: 1;
}

.topic-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.topic-card:hover .topic-avatar {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.icon-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 12px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-placeholder::before {
    content: '🤖';
    font-size: 24px;
    color: var(--text-white);
}

.topic-card:nth-child(2) .icon-placeholder::before {
    content: '👁️';
}

.topic-card:nth-child(3) .icon-placeholder::before {
    content: '⚙️';
}

.topic-card:nth-child(4) .icon-placeholder::before {
    content: '🔗';
}

.topic-card:nth-child(5) .icon-placeholder::before {
    content: '🛡️';
}

.topic-card:nth-child(6) .icon-placeholder::before {
    content: '🏢';
}

.topic-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 8px;
    line-height: 1.3;
}

.topic-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin: 0;
    line-height: 1.3;
}

.topic-description {
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 0.85rem;
}

.topic-intro {
    color: var(--text-gray);
    line-height: 1.5;
    margin-bottom: 20px;
    font-size: 0.8rem;
    opacity: 0.9;
}

.topic-intro-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 8px;
    margin-top: 15px;
}

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

.tag {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--text-white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
}

/* 响应式布局 */
@media (max-width: 1024px) {
    .topics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .topic-card {
        padding: 25px;
    }
}

@media (max-width: 768px) {
    .topics {
        padding: 80px 0;
    }
    
    .topics .section-title {
        font-size: 2rem;
        margin-bottom: 15px;
    }
    
    .topics .section-subtitle {
        margin-bottom: 40px;
        font-size: 0.95rem;
    }
    
    .topics-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 40px;
    }
    
    .topic-card {
        padding: 20px;
    }
    
    .topic-header {
        justify-content: flex-start;
        align-items: flex-end;
        gap: 20px;
        margin-bottom: 8px;
    }
    
    .topic-header .topic-icon {
        margin-left: auto;
        margin-right: 30px;
    }
    
    .topic-icon {
        width: 60px;
        height: 60px;
        order: 2;
    }
    
    .topic-name {
        order: 1;
    }
    

    
    .icon-placeholder::before {
        font-size: 20px;
    }
    
    .topic-title {
        font-size: 1.2rem;
        margin-bottom: 8px;
    }
    
    .topic-description {
        font-size: 0.8rem;
        margin-bottom: 15px;
    }
    
    .topic-intro {
        font-size: 0.75rem;
        margin-bottom: 15px;
    }
    
    .topic-intro-title {
        font-size: 0.9rem;
        margin-top: 12px;
        margin-bottom: 6px;
    }
}

@media (max-width: 480px) {
    .topics {
        padding: 60px 0;
    }
    
    .topics .section-title {
        font-size: 1.8rem;
    }
    
    .topic-card {
        padding: 16px;
    }
    
    .topic-icon {
        width: 60px;
        height: 60px;
        order: 2;
    }
    
    .topic-name {
        order: 1;
    }
    

    
    .topic-title {
        font-size: 1.1rem;
    }
    
    .topic-description {
        font-size: 0.75rem;
    }
    
    .topic-intro {
        font-size: 0.7rem;
    }
    
    .topic-intro-title {
        font-size: 0.85rem;
        margin-top: 10px;
        margin-bottom: 5px;
    }
    
    .tag {
        font-size: 0.75rem;
        padding: 3px 10px;
    }
}

/* 议程概览 */
.program {
    padding: 100px 0;
    background: var(--background-light);
}

.program .section-title {
    text-align: center;
    margin-bottom: 20px;
}

.program .section-subtitle {
    text-align: center;
    margin-bottom: 60px;
}

/* 简化的三厅并排布局样式 */

/* 演讲厅网格容器 */
.venues-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 30px;
    padding: 0 20px;
    align-items: start;
}

/* 演讲厅区块 */
.venue-section {
    background: var(--card-background);
    border-radius: 16px;
    padding: 25px;
    box-shadow: var(--shadow-light);
    border-top: 4px solid;
    transition: all 0.3s ease;
}

.venue-section:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* 三个演讲厅的颜色标识 */
#hall-1 {
    border-top-color: #ff6b35;
}

#hall-2 {
    border-top-color: #3b82f6;
}

#hall-3 {
    border-top-color: #10b981;
}

/* 演讲厅头部 */
.venue-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 25px;
    padding: 15px;
    border-radius: 12px;
}

#hall-1 .venue-header {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: white;
}

#hall-2 .venue-header {
    background: linear-gradient(135deg, #3b82f6, #1e40af);
    color: white;
}

#hall-3 .venue-header {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
}

.venue-name {
    font-size: 1.4rem;
    font-weight: 600;
    margin: 0;
}

.venue-color-indicator {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* 演讲列表样式 */
.talks-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 演讲项目样式 */
.talk-item {
    display: flex;
    gap: 15px;
    align-items: flex-start;
    padding: 14px 16px;
    background: #fafbfc;
    border-radius: 8px;
    border: 1px solid #f1f5f9;
    transition: all 0.3s ease;
    margin-bottom: 2px;
}

.talk-item:hover {
    background: white;
    border-color: var(--accent-orange);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    margin-bottom: 4px;
}

.talk-time {
    flex-shrink: 0;
    width: 80px;
    color: #666666;
    font-size: 0.7rem;
    font-weight: 300;
    /*padding: 4px 0;*/
    text-align: left;
    opacity: 1;
    margin-top: 4px;
    margin-left: 0;
}

.talk-content {
    flex: 1;
}

.talk-content .talk-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 6px;
    line-height: 1.3;
    text-align: left;
}

.talk-content .talk-speaker {
    color: var(--accent-orange);
    font-weight: 500;
    font-size: 0.85rem;
    margin: 0;
    margin-bottom: 4px;
    margin-left: 0;
    padding-left: 0;
    text-align: left;
}



/* 确保大屏幕上三厅水平排列 */
@media (min-width: 1025px) {
    .venues-grid {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 30px;
    }
    
    .venue-section {
        min-height: 600px;
    }
}

/* 响应式设计 - 简化三厅布局 */
@media (max-width: 1024px) {
    .venues-grid {
        grid-template-columns: 1fr;
        max-width: 800px;
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .venues-grid {
        padding: 0 15px;
        gap: 20px;
    }
    
    .venue-section {
        padding: 20px;
    }
    
    .venue-name {
        font-size: 1.2rem;
    }
    
    .talk-item {
        gap: 12px;
        padding: 12px;
    }
    
    .talk-time {
        width: 70px;
        font-size: 0.65rem;
        padding: 3px 0;
        color: #666666;
        font-weight: 300;
        opacity: 1;
        margin-top: 3px;
        margin-left: 0;
        text-align: left;
    }
    
    .talk-content .talk-title {
        font-size: 0.9rem;
    }
    
    .talk-content .talk-speaker {
        font-size: 0.8rem;
    }
    }
    
    .view-controls {
        flex-direction: column;
        gap: 8px;
        margin-bottom: 30px;
    }
    
    .view-btn {
        padding: 10px 16px;
        font-size: 0.85rem;
    }
    
    .venues-schedule {
        padding: 0 15px;
    }
    
    .venue-header {
        flex-direction: column;
        gap: 10px;
        padding: 15px;
    }
    
    .venue-name {
        font-size: 1.4rem;
    }
    
    .time-period {
        padding: 20px 15px;
        margin-bottom: 30px;
    }
    
    .period-title {
        font-size: 1.2rem;
    }
    
    .talks-timeline {
        padding-left: 20px;
    }
    
    .talks-timeline::before {
        left: 10px;
    }
    
    .talk-item {
        flex-direction: column;
        gap: 10px;
        margin-bottom: 20px;
    }
    
    .talk-item::before {
        left: -13px;
        top: 15px;
    }
    
    .talk-time {
        width: auto;
        align-self: flex-start;
        margin-left: 0;
    }
    
    .talk-content {
        padding: 15px;
        margin-left: 0;
    }
    
    .talk-content .talk-title {
        font-size: 0.95rem;
    }
    
    .talk-content .talk-speaker {
        font-size: 0.85rem;
    }
    
    .talk-content .talk-description {
        font-size: 0.85rem;
    }
    

@media (max-width: 480px) {
    .venue-tabs {
        padding: 0 10px;
    }
    
    .venue-tab {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    
    .venues-schedule {
        padding: 0 10px;
    }
    
    .venue-header {
        padding: 12px;
    }
    
    .venue-name {
        font-size: 1.2rem;
    }
    
    .venue-color-indicator {
        width: 16px;
        height: 16px;
    }
    
    .time-period {
        padding: 15px 10px;
        margin-bottom: 25px;
    }
    
    .period-title {
        font-size: 1.1rem;
    }
    
    .talks-timeline {
        padding-left: 15px;
    }
}

    
    .talks-timeline::before {
        left: 7px;
    }
    
    .talk-item::before {
        left: -8px;
        width: 6px;
        height: 6px;
        box-shadow: 0 0 0 2px white, 0 0 0 4px var(--accent-orange);
    }
    
    .talk-time {
        font-size: 0.75rem;
        /*padding: 5px 8px;*/
    }
    
    .talk-content {
        padding: 12px;
        margin-left: 5px;
    }
    
    .talk-content .talk-title {
        font-size: 0.9rem;
        margin-bottom: 6px;
    }
    
    .talk-content .talk-speaker {
        font-size: 0.8rem;
        margin-bottom: 6px;
    }
    
    .talk-content .talk-description {
        font-size: 0.8rem;
        line-height: 1.4;
    }
    /* 横屏模式优化 */
@media (max-width: 768px) and (orientation: landscape) {
    .venue-tabs {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .venue-tab {
        flex: 1;
        min-width: 120px;
        max-width: 200px;
    }
    
    .view-controls {
        flex-direction: row;
    }
    
    .talk-item {
        flex-direction: row;
        gap: 15px;
    }
    
    .talk-time {
        width: 90px;
        align-self: flex-start;
        margin-left: 0;
    }
    
    .talk-content {
        margin-left: 0;
    }
}

/* 打印样式优化 */
@media print {
    .venue-tabs,
    .view-controls {
        display: none;
    }
    
    .venue-content {
        display: block !important;
        page-break-inside: avoid;
    }
    
    .time-period {
        page-break-inside: avoid;
        margin-bottom: 20px;
    }
    
    .talk-item {
        page-break-inside: avoid;
        margin-bottom: 15px;
    }
    

}

/* 保留原有的talks-grid样式以防其他地方使用 */
.talks-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.talk-card {
    background: var(--card-background);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    border-left: 4px solid var(--accent-orange);
}

.talk-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.talk-time {
    display: inline-block;
    background: transparent;
    /*color: #1e40af;*/
    font-size: 0.85rem;
    font-weight: 600;
    /*margin-bottom: 16px;*/
    /*margin-left: 20px;*/
    letter-spacing: 0.3px;
}

.talk-venue {
    display: inline-block;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--text-white);
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(255, 107, 53, 0.3);
}

.talk-title {
    color: var(--primary-dark);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.4;
    text-align: left;
}

.talk-speaker {
    color: var(--accent-orange);
    font-weight: 600;
    font-size: 0.9rem;
    /*margin-bottom: 10px;*/
    text-align: left;
}

.talk-description {
    color: var(--text-gray);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 0;
}

/* 响应式布局 - 议程概览 */
@media (max-width: 1024px) {
    .talks-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
        max-width: 800px;
    }
}

@media (max-width: 768px) {
    .talks-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 500px;
    }
    
    .talk-card {
        padding: 20px;
    }
    
    .talk-title {
        font-size: 1rem;
        margin-left: 0;
        text-align: left;
    }
    
    .talk-speaker {
        margin-left: 0;
        text-align: left;
    }
    
    .talk-time {
        font-size: 0.8rem;
        margin-bottom: 12px;
        margin-left: 0;
        font-weight: 300;
        color: #333;
        text-align: left;
    }
    
    .talk-venue {
        font-size: 0.85rem;
        padding: 6px 12px;
        margin-bottom: 18px;
    }
    
    /* 移动端场地和地图样式 */
    .venue-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .venue-placeholder {
        height: 250px;
    }
    
    #baidu-map {
        height: 250px;
    }
    
    .venue-info h3 {
        font-size: 1.5rem;
    }
    
    .venue-info p {
        font-size: 1rem;
    }
    
    .location-details {
        padding: 16px;
    }
    
    .location-details h4 {
        font-size: 1.1rem;
    }
    
    .location-details p {
        font-size: 0.9rem;
    }
}

/* 场地信息 */
.venue {
    padding: 100px 0;
    background: var(--card-background);
}

.venue .section-title {
    text-align: center;
    margin-bottom: 60px;
}

.venue-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.venue-info h3 {
    font-size: 2rem;
    color: var(--primary-dark);
    margin-bottom: 20px;
}

.venue-info p {
    color: var(--text-gray);
    line-height: 1.3;
    font-size: 1.1rem;
}

.venue-image {
    position: relative;
}

.venue-placeholder {
    width: 100%;
    height: 300px;
    border-radius: 16px;
    position: relative;
    overflow: hidden;
    background: #f5f5f5;
}

/* 地图容器样式 */
#venue-map {
    width: 100%;
    height: 100%;
    border-radius: 16px;
}

/* 百度地图样式 */
#baidu-map {
    width: 100%;
    height: 400px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

#baidu-map:hover {
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.15);
}

/* 地图信息样式 */
.map-info {
    margin-top: 20px;
    text-align: center;
}

.location-details {
    padding: 20px;
    background: var(--card-background);
    border-radius: 12px;
    box-shadow: var(--shadow-light);
}

.location-details h4 {
    color: var(--primary-dark);
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0 0 8px 0;
}

.location-details p {
    margin: 5px 0;
    color: var(--text-secondary);
    font-size: 1rem;
}

.location-details .address {
    font-size: 0.9rem;
    opacity: 0.8;
}

.location-info {
    text-align: center;
    color: white;
    z-index: 2;
    position: relative;
    padding: 20px;
}

.location-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    display: block;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.location-info h4 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 8px 0;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.location-info p {
    margin: 5px 0;
    font-size: 1rem;
    opacity: 0.9;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.location-info .address {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 20px;
}

.map-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.map-link {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.map-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* 赞助商 */
.sponsors {
    padding: 100px 0;
    background: var(--background-light);
}

.sponsors .section-title {
    text-align: center;
    margin-bottom: 20px;
}

.sponsors .section-subtitle {
    text-align: center;
    margin-bottom: 60px;
}

.sponsors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.sponsor-card {
    background: var(--card-background);
    padding: 40px 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
}

.sponsor-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.sponsor-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 12px;
    margin: 0 auto 15px;
}

.sponsor-card h4 {
    color: var(--primary-dark);
    font-weight: 600;
}

/* 购票区域 */
.tickets {
    padding: 100px 0;
    background: var(--primary-dark);
    color: var(--text-white);
}

.tickets .section-title {
    text-align: center;
    margin-bottom: 10px;
    color: var(--text-white);
}

.tickets .section-subtitle {
    text-align: center;
    /*margin-bottom: 60px;*/
    color: var(--accent-orange);
    font-size: 1.2rem;
}

.tickets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 400px;
    margin: 0 auto;
}

.ticket-card {
    background: transparent;
    color: var(--primary-dark);
    padding: 20px;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

.ticket-card:hover {
    transform: translateY(-2px);
}

.ticket-card.featured {
    transform: scale(1.05);
}

.ticket-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-orange);
    color: var(--text-white);
    padding: 5px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.ticket-card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-dark);
}

.ticket-price {
    margin-bottom: 30px;
}

.price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-orange);
}

.original-price {
    font-size: 1.2rem;
    color: var(--text-gray);
    text-decoration: line-through;
    margin-left: 10px;
}

.ticket-features {
    list-style: none;
    margin-bottom: 30px;
    text-align: left;
}

.ticket-features li {
    padding: 8px 0;
    color: var(--text-gray);
    position: relative;
    padding-left: 25px;
}

.ticket-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-orange);
    font-weight: bold;
}

/* 页脚 */
.footer {
    background: var(--primary-dark);
    color: var(--text-white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    justify-content: flex-end;
    width: fit-content;
    margin-left: auto;
}

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

.footer-section h4 {
    color: var(--accent-orange);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

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

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

.footer-section a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--accent-orange);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--accent-orange);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    color: var(--text-gray);
}

/* 为什么要参加AI Maker Summit */
.why-attend {
    padding: 100px 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    position: relative;
    overflow: hidden;
    color: white;
}

.why-attend::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    z-index: 1;
}

.why-attend .container {
    position: relative;
    z-index: 2;
}

.why-attend-header {
    text-align: center;
    margin-bottom: 80px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.why-attend .section-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.2s;
}

.why-attend .section-subtitle {
    font-size: 1.5rem;
    color: #94a3b8;
    margin-bottom: 20px;
    font-weight: 400;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.4s;
}

.why-attend-description {
    font-size: 1.3rem;
    color: #fbbf24;
    margin-top: 20px;
    line-height: 1.6;
    font-weight: 600;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.6s;
}

.why-attend-content {
    max-width: 1400px;
    margin: 0 auto;
}

.why-attend-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 80px;
    /* 确保网格项目顶部对齐 */
    align-items: start;
}

.why-feature-card {
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid rgba(71, 85, 105, 0.3);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    backdrop-filter: blur(10px);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.why-feature-card:nth-child(1) {
    animation-delay: 0.1s;
}

.why-feature-card:nth-child(2) {
    animation-delay: 0.3s;
}

.why-feature-card:nth-child(3) {
    animation-delay: 0.5s;
}

.why-feature-card:hover {
    transform: translateY(-12px) scale(1.02);
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.2);
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-image {
    position: relative;
    height: 240px;
    overflow: hidden;
}

/* Workshop Card Styles */
.workshop-card {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid rgba(71, 85, 105, 0.3);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    backdrop-filter: blur(10px);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.3s;
    cursor: pointer;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.08);
}

.workshop-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(147, 51, 234, 0.1));
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

.workshop-card:hover {
    transform: translateY(-8px);
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.2);
}

.workshop-card:active {
    transform: translateY(-8px);
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.2);
    transition: none;
}

.workshop-card:hover::before {
    opacity: 1;
}

.workshop-image-container {
    position: relative;
    width: 100%;
    height: 280px;
    border-radius: 16px 16px 0 0;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    background: linear-gradient(145deg, #f1f5f9, #e2e8f0);
    z-index: 2;
    flex-shrink: 0;
    /* 确保所有容器高度一致，以便文字叠加层对齐 */
    display: flex;
    align-items: flex-end;
}

.workshop-image-container:hover {
    /* 移除变换效果以保持原始尺寸 */
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.workshop-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    filter: brightness(0.9) contrast(1.1);
}

.workshop-image-container:hover .workshop-bg-image {
    transform: scale(1.05);
    filter: brightness(0.7) contrast(1.2);
}

.workshop-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5); /* 默认50%黑色遮罩 */
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(1px);
    opacity: 1;
    z-index: 2;
}

.workshop-card:hover .workshop-overlay {
    background: rgba(0, 0, 0, 0.6); /* 悬停略加深 */
    backdrop-filter: blur(2px);
    opacity: 1;
}

.workshop-overlay:active {
    transform: none;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.7), rgba(30, 41, 59, 0.8), rgba(0, 0, 0, 0.75));
    transition: none;
}

/*.workshop-card:hover .workshop-overlay {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.6), rgba(59, 130, 246, 0.4), rgba(147, 51, 234, 0.3));
    backdrop-filter: blur(2px);
}*/

.workshop-keyword {
    color: white;
    font-size: 1.8rem;
    font-weight: 800;
    text-align: center;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.7), 0 0 20px rgba(59, 130, 246, 0.3);
    padding: 0 20px;
    line-height: 1.2;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.5px;
    position: relative;
}

.workshop-keyword::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #3b82f6, #9333ea);
    transition: width 0.4s ease;
}

.workshop-card:hover .workshop-keyword {
    transform: scale(1.05);
    text-shadow: 2px 2px 12px rgba(0, 0, 0, 0.8), 0 0 30px rgba(59, 130, 246, 0.5);
}

.workshop-card:active .workshop-keyword {
    transform: scale(1.05);
    text-shadow: 2px 2px 12px rgba(0, 0, 0, 0.8), 0 0 30px rgba(59, 130, 246, 0.5);
    transition: none;
}

.workshop-card:hover .workshop-keyword::after {
    width: 80%;
}

/*.workshop-image-container:hover .workshop-overlay {
    opacity: 0;
}*/

.workshop-hover-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 32px;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(15px) saturate(1.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/*.workshop-hover-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.5s ease;
}*/

.workshop-card:hover .workshop-hover-content::before {
    opacity: 1;
}

.workshop-image-container:hover .workshop-hover-content {
    display: none;
    opacity: 0;
    transform: translateY(0) scale(1);
}

.workshop-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.25), rgba(255, 255, 255, 0.1));
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
    backdrop-filter: blur(15px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    transform: scale(0.8);
}

.workshop-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    transition: transform 0.6s ease;
}

.workshop-image-container:hover .workshop-icon::before {
    transform: rotate(45deg) translate(100%, 100%);
}

.workshop-image-container:hover .workshop-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.workshop-hover-title {
    font-size: 1.4rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    line-height: 1.3;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
    letter-spacing: 0.5px;
    background: linear-gradient(135deg, #ffffff, #e2e8f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.workshop-hover-description {
    color: #cbd5e1;
    font-size: 0.95rem;
    line-height: 1.6;
    text-align: center;
    margin-bottom: 20px;
    opacity: 0.95;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
    font-weight: 400;
}

.workshop-features {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.workshop-feature {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.25), rgba(255, 255, 255, 0.1));
    color: #93c5fd;
    padding: 6px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
}

.workshop-feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}
.workshop-feature:hover::before {
    left: 100%;
}

/* Workshop Text Container Styles - 重新设计为图片下方布局 */
/* 旧的workshop-text-container样式已移除，现在使用workshop-text-overlay */
.workshop-text-container {
    display: none;
}

.workshop-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: white;
    margin-bottom: 30px;
    background: transparent;
    transition: all 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    line-height: 1.3;
    position: relative;
    backface-visibility: hidden;
    transform-origin: center center;
    transform: translateZ(0);
    border: none;
    outline: none;
    box-shadow: none;
    will-change: transform, color, font-size;
    text-decoration: none;
}

/* 旧的workshop-text-container悬停效果已移除 */

/* 移除悬停时文字样式变化 */
.workshop-card:hover .workshop-title {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 8px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    background: transparent;
    transform: translateZ(0);
    border: none;
    outline: none;
    box-shadow: none;
    text-decoration: none;
}

.workshop-card:hover .workshop-description {
    opacity: 1;
    transform: translateY(0) translateZ(0);
    max-height: none;
    margin-top: 0;
    color: #e2e8f0;
    font-weight: 500;
    background: transparent;
    border: none;
    outline: none;
    box-shadow: none;
    text-decoration: none;
}

/* Enhanced Workshop Card Structure */
.workshop-card {
    background: transparent;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: none;
    height: 400px;
    display: block;
}

.workshop-card:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    transform: translateY(-5px);
}

/* 移除所有装饰线，确保文字显示清晰无干扰 */
.workshop-title::after {
    display: none;
}

.workshop-text-container::before {
    display: none;
}

/* 装饰线已完全移除 */

/* Staggered Animation for Description */
.workshop-description {
    font-size: 0.95rem;
    color: #FFFFFF;
    line-height: 1.5;
    margin: 0;
    opacity: 1;
    transform: translateY(0) translateZ(0);
    background: transparent;
    transition: all 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.15s;
    max-height: none;
    overflow: visible;
    backface-visibility: hidden;
    transform-origin: center center;
    border: none;
    outline: none;
    box-shadow: none;
    will-change: transform, opacity, max-height;
    text-decoration: none;
    text-align: left;
}

/* Workshop Text Overlay - 文字叠加在图片上 */
.workshop-text-overlay {
    position: absolute;
    bottom: 20px; /* 默认显示标题在底部 */
    left: 20px;
    right: 20px;
    text-align: center;
    padding: 16px;
    z-index: 15;
    transition: all 0.4s linear;
    transform-origin: center center;
    color: #FFFFFF;
    overflow: visible;
    height: auto;
    align-items: flex-start;
    opacity: 1;            /* 默认可见标题 */
    transform: none;       /* 默认不位移 */
    pointer-events: none;  /* 防止遮挡鼠标事件 */
}

/* 默认只显示标题，描述隐藏 */
.workshop-text-overlay .workshop-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 6px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.workshop-text-overlay .workshop-description {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, opacity 0.35s ease;
    margin-top: 0;
}

/* 悬停图片时：叠加层上移并展开描述 */
.workshop-image-container:hover .workshop-text-overlay {
    transform: translateY(-25%);
    transition: all 0.4s linear;
}

.workshop-image-container:hover .workshop-text-overlay .workshop-description {
    max-height: 400px;
    opacity: 1;
    margin-top: 12px;
}

/* 禁用点击时的视觉反馈效果 */
.workshop-text-overlay:active {
    transform: none !important;
    transition: none !important;
    animation: none !important;
}

.workshop-text-overlay:active .workshop-title,
.workshop-text-overlay:active .workshop-description {
    transform: none !important;
    transition: none !important;
}

/* 浮动动画效果 - 移动到中心位置 */
@keyframes floatToCenter {
    0% {
        transform: translateY(0) translateX(0);
        opacity: 1;
    }
    50% {
        transform: translateY(-100px) translateX(0) scale(1.1);
        opacity: 0.8;
    }
    100% {
        transform: translateY(-200px) translateX(0) scale(1);
        opacity: 1;
    }
}

@keyframes floatBack {
    0% {
        transform: translateY(-200px) translateX(0);
        opacity: 1;
    }
    50% {
        transform: translateY(-100px) translateX(0) scale(1.1);
        opacity: 0.8;
    }
    100% {
        transform: translateY(0) translateX(0) scale(1);
        opacity: 1;
    }
}

.workshop-text-overlay.float-animation {
    animation: floatToCenter 1.2s ease-in-out forwards;
}

.workshop-text-overlay.float-back {
    animation: floatBack 1.2s ease-in-out forwards;
}

/* 上面的规则已改为位移到中部并展开描述，这里不再需要强制设置透明度 */
.workshop-image-container:hover .workshop-text-overlay {
    transform: translateY(-25%);
    transition: all 0.4s linear;
}

.workshop-text-overlay .workshop-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 6px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    text-align: center;
}

.workshop-text-overlay .workshop-description {
    font-size: 0.9rem;
    color: #e2e8f0;
    margin: 0;
    margin-top: 22px;
    line-height: 1.4;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* 确保悬停时文字大小保持不变 */
.workshop-card:hover .workshop-text-overlay .workshop-title {
    color: white;
    font-size: 1.2rem;
}

/* 确保悬停时描述文字样式保持不变 */
.workshop-card:hover .workshop-text-overlay .workshop-description {
    color: #e2e8f0;
    font-size: 0.9rem;
}

/* Enhanced Image Hover Effects */
.workshop-image-container {
    position: relative;
    height: 400px;
    overflow: hidden;
    border-radius: 16px;
    width: 100%;
}

.workshop-bg-image {
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.workshop-card:hover .workshop-bg-image {
    transform: scale(1.02); /* 减少缩放以保持更稳定的效果 */
    filter: brightness(0.9) contrast(1.1) saturate(1.2);
}

.workshop-card:hover .workshop-feature {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.workshop-feature:hover {
    background: rgba(59, 130, 246, 0.3);
    color: white;
    border-color: rgba(59, 130, 246, 0.5);
}

.feature-content {
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}



.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: white;
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.3);
}

.feature-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
    line-height: 1.3;
}



.feature-description {
    color: #cbd5e1;
    line-height: 1.7;
    font-size: 1.1rem;
}

.why-attend-highlight {
    margin-top: 60px;
}

.highlight-card {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(30, 41, 59, 0.9) 100%);
    border: 1px solid rgba(71, 85, 105, 0.3);
    border-radius: 24px;
    padding: 48px;
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 48px;
    align-items: center;
    color: white;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(20px);
    opacity: 0;
    transform: translateY(40px);
    animation: fadeInUp 1s ease forwards;
    animation-delay: 0.7s;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.highlight-card:hover {
    transform: translateY(-8px);
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 16px 48px rgba(59, 130, 246, 0.15);
}

.highlight-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(59, 130, 246, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    z-index: 1;
}

.highlight-content {
    position: relative;
    z-index: 2;
}

.highlight-image {
    position: relative;
    z-index: 2;
    border-radius: 16px;
    overflow: hidden;
}

.highlight-bg-image {
    width: 100%;
    height: 240px;
    object-fit: cover;
    border-radius: 16px;
    filter: brightness(0.9);
}

.highlight-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    color: white;
    box-shadow: 0 12px 40px rgba(59, 130, 246, 0.3);
}

.highlight-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.3;
    color: white;
}

.highlight-description {
    font-size: 1.2rem;
    line-height: 1.7;
    color: #e2e8f0;
}

.beian{

    text-decoration: none;
    color: inherit;

}

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

/* === 顶部空隙清除：让导航与首屏内容贴合 === */
.navbar + section.hero {
  margin-top: 0 !important;
  padding-top: 0 !important;
}
section.hero {
  margin-top: 0 !important;
  padding-top: 0 !important;
}

/* 移动端进一步去除 Hero 内部顶部间距 */
@media (max-width: 768px) {
  .hero-content { padding-top: 0 !important; }
  .hero-main-title { margin-top: 0 !important; }
}

.why-card {
    animation: fadeInUp 0.6s ease-out;
}

.why-card:nth-child(1) {
    animation-delay: 0.1s;
}

.why-card:nth-child(2) {
    animation-delay: 0.2s;
}

.why-card:nth-child(3) {
    animation-delay: 0.3s;
}

.highlight-card {
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .why-attend-grid {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
    

    
    .highlight-card {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 32px;
    }
    
    .highlight-image {
        order: -1;
        height: 250px;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .speakers-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 15px;
    }
    
    .speaker-avatar {
        width: 65px;
        height: 65px;
        font-size: 1.4rem;
        margin: 0 auto 10px;
    }
}

@media (max-width: 768px) {
    .why-attend {
        padding: 80px 0;
    }
    
    .why-attend-header {
        margin-bottom: 60px;
    }
    
    .why-attend-header .section-title {
        font-size: 2.5rem;
    }
    
    .why-attend-header .section-subtitle {
        font-size: 1.25rem;
    }
    
    .why-attend-description {
        font-size: 1rem;
    }
    
    .why-attend-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 60px;
    }
    

    
    .feature-content {
        padding: 24px;
    }
    
    .feature-title {
        font-size: 1.25rem;
    }
    
    .feature-description {
        font-size: 0.9rem;
    }
    
    .highlight-card {
        padding: 24px;
        gap: 24px;
    }
    
    .highlight-title {
        font-size: 1.5rem;
    }
    
    .highlight-description {
        font-size: 1rem;
    }
    
    .highlight-image {
        height: 200px;
    }
    
    /* Workshop Card Mobile Styles */
    .workshop-card {
        max-width: 320px;
    }
    
    .workshop-keyword {
        font-size: 1.4rem;
    }
    
    .workshop-hover-content {
        padding: 24px;
    }
    
    .workshop-hover-title {
        font-size: 1.2rem;
    }
    
    .workshop-hover-description {
        font-size: 0.85rem;
    }
    
    .workshop-icon {
        width: 48px;
        height: 48px;
        margin-bottom: 16px;
    }
    
    .workshop-feature {
        font-size: 0.75rem;
        padding: 4px 8px;
    }
    
    /* 确保移动端浮动效果与Web端保持一致 */
    .workshop-text-overlay {
        transition: all 0.4s linear;
        transform-origin: center center;
    }
    
    .workshop-text-overlay.float-animation {
        animation: floatToCenter 1.2s ease-in-out forwards;
    }
    
    .workshop-text-overlay.float-back {
        animation: floatBack 1.2s ease-in-out forwards;
    }
    
    .workshop-card:hover .workshop-text-overlay {
        transform: translateY(-50%);
        transition: all 0.4s linear;
    }
}

@media (max-width: 768px) {
    
    
    
    
    
    
    
    
    
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-main-title {
        font-size: 2.2rem;
        line-height: 1.2;
        margin-top: 90px;
        margin-bottom: 8px;
    }
    
    .hero-content h4 {
        font-size: 1.4rem;
    }
    
    .hero-description {
        display: none;
    }
    
    .hero-content {
        padding-bottom: 100px;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
        gap: 15px;
        margin-bottom: 20px;
    }
    
    .hero-cta .btn {
        width: 100%;
        /*max-width: 280px;*/
        max-width: 200px;
    }
    
    .cta-separator {
        margin: 5px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .speakers-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
    
    .speaker-avatar {
        width: 60px;
        height: 60px;
        font-size: 1.3rem;
        margin: 0 auto 10px;
    }
    
    .timeline-item {
        flex-direction: column;
        gap: 20px;
    }
    
    .timeline-item::before {
        display: none;
    }
    
    .timeline-date {
        text-align: left;
    }
    
    .timeline-date::after {
        display: none;
    }
    
    .venue-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .venue-placeholder {
        height: 250px;
    }
    
    #venue-map {
        height: 100%;
        border-radius: 12px;
    }
    
    .location-info {
        padding: 15px;
    }
    
    .location-icon {
        font-size: 2.5rem;
        margin-bottom: 10px;
    }
    
    .location-info h4 {
        font-size: 1.2rem;
    }
    
    .location-info p {
        font-size: 0.9rem;
    }
    
    .map-actions {
        flex-direction: column;
        gap: 8px;
    }
    
    .map-link {
        padding: 10px 16px;
        font-size: 0.85rem;
    }
    
    .tickets-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .ticket-card.featured {
        transform: none;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
    
    /* 移动端隐藏页脚logo */
    .footer .logo-icon {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 1.2rem;
    }
    
    .hero-main-title {
        font-size: 1.8rem;
        line-height: 1.2;
        margin-top: 80px;
        margin-bottom: 6px;
    }
    
    .hero-content h4 {
        font-size: 1.2rem;
    }

    
    .hero-description {
        font-size: 0.9rem;
        margin-bottom: 30px;
    }
    
    .hero-content {
        padding-bottom: 80px;
    }
    
    .hero-cta .btn {
        /* 保持与Web端一致的样式 */
    }
    
    .speakers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .speaker-card {
        padding: 12px;
    }
    
    .speaker-avatar {
        width: 55px;
        height: 55px;
        font-size: 1.2rem;
        margin: 0 auto 8px;
    }
    
    .speaker-name {
        font-size: 0.9rem;
    }
    
    .speaker-title,
    .speaker-company {
        font-size: 0.75rem;
    }
    
    .sponsors-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* 确保小屏幕设备上浮动效果与Web端保持一致 */
    .workshop-text-overlay {
        transition: all 0.4s linear;
        transform-origin: center center;
    }
    
    .workshop-text-overlay.float-animation {
        animation: floatToCenter 1.2s ease-in-out forwards;
    }
    
    .workshop-text-overlay.float-back {
        animation: floatBack 1.2s ease-in-out forwards;
    }
    
    .workshop-card:hover .workshop-text-overlay {
        transform: translateY(-50%);
        transition: all 0.4s linear;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 返回顶部按钮（与 timeline.html 行为一致） */
.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    background: var(--accent-orange);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: var(--shadow-large);
    transition: opacity 0.25s ease, transform 0.25s ease;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(12px);
}
.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(0);
}
.back-to-top.show {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 50px;
    border: 2px solid var(--text-white);
    border-radius: 25px;
    opacity: 0.7;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--text-white);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        transform: translateX(-50%) translateY(0);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateX(-50%) translateY(20px);
        opacity: 0;
    }

}

/* 移动端：将文字浮动位置调整到图片中间 */
@media (max-width: 768px) {
  .workshop-image-container:hover .workshop-text-overlay {
    transform: translateY(-50%) !important;
  }
}
@media (max-width: 480px) {
  .workshop-image-container:hover .workshop-text-overlay {
    transform: translateY(-50%) !important;
  }
}

/* 提升公司名层级：半粗显示 */
.speaker-company { font-weight: 600; }

/* 合作伙伴展示 */
.partners {
    padding: 100px 0;
    background: var(--background-light);
}
.partners .section-title {
    text-align: center;
    margin-bottom: 30px;
    color: var(--primary-dark);
}
.partners .container {
    position: relative;
    z-index: 1;
}

/* 网格：桌面自适应，移动端固定 3 列 */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
    align-items: center;
}

/* 卡片风格与全站一致：白底、轻边框、圆角、阴影 */
.partner-item {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 16px;
    display: grid;
    place-items: center;
    text-decoration: none;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.partner-item:hover {
    transform: translateY(-4px);
    border-color: #cbd5e1;
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

/* Logo 尺寸与适配：居中、保持比例、不裁切 */
.partner-logo {
    width: 90px;
    height: 60px;
    object-fit: contain;
    display: block;
    filter: none;
}

/* 响应式：移动端每行 3 个，缩小间距与 logo 尺寸 */
@media (max-width: 768px) {
    .partners { padding: 80px 0; }
    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
        padding: 0 16px;
    }
    .partner-item { padding: 12px; }
    .partner-logo {
        width: 70px;
        height: 48px;
    }
}

/* 更小屏适配：保证触控友好间距 */
@media (max-width: 480px) {
    .partners { padding: 60px 0; }
    .partners-grid { gap: 12px; padding: 0 12px; }
    .partner-item { padding: 10px; }
    .partner-logo { width: 60px; height: 42px; }
}