/* ==================================
   基础设定
   ================================== */
* { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
}

body { 
    background-color: #090329; 
    color: #ffffff; 
    font-family: -apple-system, BlinkMacSystemFont, Arial, sans-serif; 
    line-height: 1.6; 
    width: 100%;
    margin: 0; 
    overflow-x: hidden; 
}

a { 
    text-decoration: none; 
    color: inherit; 
}

ul { 
    list-style: none; 
}

button { 
    border: none; 
    cursor: pointer; 
    outline: none; 
    background: transparent; 
}

.container { 
    padding: 6rem 2rem; 
    width: 100%; 
    max-width: 1600px; 
    margin: 0 auto; 
}


/* ==================================
   各板块独立颜色控制区 (包含卡片的单独控制)
   ================================== */

/* --- 1. 演讲嘉宾板块 --- */
#speakers-section {
    background-color: #03063e; /* 板块整体背景 */
    color: #ffffff;            /* 板块全局文字颜色 */
}
#speakers-section .speaker-card {
    background-color: #636363; /* 嘉宾卡片默认背景 */
}
#speakers-section .speaker-card:hover {
    background-color: #d62e58; /* 嘉宾卡片悬浮颜色 */
}


/* --- 2. 大会重大亮点板块 --- */
#highlights-section {
    background-color: #ffffff; /* 板块整体背景 */
    color: #000000;            /* 板块全局文字颜色 */
}
/* 独立控制该板块内的卡片颜色 */
#highlights-section .card {
    background-color: #ffffff; /* 卡片背景色 */
    border: 1px solid rgba(0, 0, 0, 0.1); /* 卡片边框色 */
}
#highlights-section .card-body p {
    color: #666666; /* 卡片内正文颜色 */
}
#highlights-section .white-heading {
    color: #000000 !important; /* 卡片内标题颜色 */
}


/* --- 3. 产业链主题板块 --- */
#industry-chain-section {
    background-image: url('/expo/waea-wec/image/2026AI眼镜生态大会主KV.jpg'); /* 替换为您的真实图片路径 */
    background-size: cover; /* 让图片等比缩放，完全铺满整个板块区域 */
    background-position: center; /* 确保图片始终居中显示 */
    background-repeat: no-repeat; /* 防止图片较小时出现重复平铺 */
    color: #ffffff; /* 板块全局文字颜色保持白色 */
}

/* 独立控制该板块内的卡片颜色 */
#industry-chain-section .card {
    border: 1px solid rgb(255, 255, 255); /* 卡片边框色 */
    width: 300px;
    margin: 0 auto;
}
#industry-chain-section .card-body p {
    color: #ffffff; /* 卡片内正文颜色 */
}
#industry-chain-section .white-heading {
    color: #ffffff !important; /* 卡片内标题颜色 */
}


/* --- 4. 五大特色功能区板块 --- */
#special-areas-section {
    background-color: #ffffff; /* 板块整体背景 */
    color: #000000;            /* 板块全局文字颜色 */
}
/* 独立控制该板块内的卡片颜色 */
#special-areas-section .card {
    background-color: #ffffff; /* 卡片背景色 */
    border: 1px solid rgba(0, 0, 0, 0.1); /* 卡片边框色 */
}
#special-areas-section .card-body p {
    color: #666666; /* 卡片内正文颜色 */
}
#special-areas-section .white-heading {
    color: #000000 !important; /* 卡片内标题颜色 */
}


/* --- 5. 新品发布会与品牌展示区板块 --- */
#exhibition-section {
    background-color: #000000;
    color: #000000;
}


/* --- 6. 组织架构板块 --- */
#organization-section {
    background-color: #ffffff;
    color: #000000;
}


/* ==================================
   文字样式约束
   ================================== */
.section-title { 
    font-size: 2.5rem; 
    font-weight: bold; 
    text-align: center; 
    margin-bottom: 3rem; 
    color: inherit; 
    letter-spacing: 2px;
}

.section-title-new { 
    font-size: 2.5rem; 
    font-weight: bold; 
    text-align: center; 
    margin-bottom: 3rem; 
    color: #ffffff ;
    letter-spacing: 2px;
}

.section-desc { 
    text-align: center; 
    color: #a0aec0; 
    max-width: 800px; 
    margin: 0 auto 3rem auto; 
    font-size: 1.1rem; 
}

.white-heading { 
    font-size: 1.3rem; 
    font-weight: bold; 
    margin-bottom: 1rem; 
}

.black-text { 
    color: #000000 !important; 
    font-weight: bold;
}

/* ==================================
   按钮样式
   ================================== */
.btn { 
    display: inline-flex; 
    justify-content: center; 
    align-items: center; 
    padding: 1rem 2.5rem; 
    border-radius: 999px; 
    font-weight: bold; 
    font-size: 1rem; 
    transition: all 0.3s ease; 
}

.btn:hover { 
    box-shadow: 0 10px 20px rgba(0,0,0,0.3); 
}

.btn-magenta { 
    background-color: #e6007e; 
    color: #ffffff; 
}

.btn-magenta:hover { 
    background-color: #ff1a96; 
}

.btn-blue { 
    background-color: #0051c7; 
    color: #ffffff; 
}

.btn-blue:hover { 
    background-color: #1a6df0; 
}

.btn-white { 
    background-color: #ffffff; 
    color: #000; 
}

.btn-white:hover { 
    background-color: #e2e8f0; 
}

.btn-outline { 
    border: 2px solid #ffffff; 
    color: #ffffff; 
    background: transparent; 
}

.btn-outline:hover { 
    background: #ffffff; 
    color: #000; 
}

.bg-placeholder { 
    background-image: linear-gradient(45deg, #090329 25%, transparent 25%, transparent 75%, #090329 75%, #090329), 
                      linear-gradient(45deg, #090329 25%, transparent 25%, transparent 75%, #090329 75%, #090329); 
    background-size: 20px 20px; 
    background-position: 0 0, 10px 10px; 
}

/* ==================================
   首页主视觉 & 导引按钮
   ================================== */
.hero-section { 
    position: relative; 
    height: 60vh; 
    min-height: 550px; 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    background-size: cover; 
    background-position: center; 
}

.hero-overlay { 
    position: absolute; 
    inset: 0; 
    background: rgba(9, 3, 41, 0.6); 
}

.hero-content { 
    position: relative; 
    z-index: 10; 
    text-align: center; 
    padding: 0 1rem; 
    margin-top: 3rem; 
}

.hero-content h1 { 
    font-size: clamp(1.6rem, 5vw, 5.5rem); 
    font-weight: 900; 
    margin-bottom: 1.5rem; 
    letter-spacing: 2px; 
    color: #ffffff;
}

.hero-content h2 { 
    font-size: clamp(1.2rem, 3vw, 2.5rem); 
    margin-bottom: 1.5rem; 
    color: #e2e8f0; 
}

.hero-content p { 
    font-size: 1rem; 
    margin-bottom: 3rem; 
    color: #ffffff; 
    font-weight: 500; 
}

.hero-content .divider { 
    opacity: 0.5; 
    margin: 0 1rem; 
    color: #a0aec0; 
}

.hero-buttons { 
    display: flex; 
    flex-direction: column; 
    gap: 1rem; 
    justify-content: center; 
}

.guide-banner { 
    padding: 2rem 1rem; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    background-color: #03063e; 
    border-bottom: 1px solid rgba(255, 255, 255, 0.1); 
    position: relative; 
    z-index: 20; 
}

.guide-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
}

.btn-guide { 
    font-size: 1.2rem; 
    padding: 1.2rem 3rem; 
    letter-spacing: 1px; 
}

/* ==================================
   演讲嘉宾区块 (3:4 带遮罩 & 专属标签)
   ================================== */
.speakers-header { 
    text-align: center; 
    margin-bottom: 1.5rem; 
}

.speakers-header p { 
    color: #a0aec0; 
    font-size: 1.1rem; 
    max-width: 800px; 
    margin: 0 auto 2rem auto; 
}

.speaker-card {
    border-radius: 1rem;
    overflow: hidden;
    position: relative;
    aspect-ratio: 3 / 4;
    background-size: cover;
    background-position: center;
    display: flex;
    flex-direction: column;
    justify-content: flex-end; 
    transition: all 0.3s ease;
}

.speaker-card:hover {
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.speaker-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60%;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.5) 50%, transparent 100%);
    z-index: 1;
}

.speaker-info {
    position: relative;
    z-index: 2;
    padding: 1.5rem;
    text-align: left; 
}

.speaker-info h3 {
    color: #ffffff;
    font-size: 1.4rem;
    font-weight: bold;
    margin-bottom: 0.3rem;
}

.speaker-info .title {
    color: #78caf0;
    font-size: 0.95rem;
    font-weight: bold;
    margin-bottom: 0.2rem;
}

.speaker-info .company {
    color: #e2e8f0;
    font-size: 0.85rem;
    line-height: 1.3;
}

/* --- 嘉宾专属分类标签样式 --- */
.category-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: bold;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    margin-bottom: 0.8rem;
    letter-spacing: 1px;
}
/* 标签颜色设定，呼应大会调性 */
.tag-terminal { background-color: #e6007e; color: #ffffff; } /* 玫红 */
.tag-display  { background-color: #0051c7; color: #ffffff; } /* 深蓝 */
.tag-chip     { background-color: #78caf0; color: #03063e; } /* 浅蓝 */
.tag-ai       { background-color: #ffffff; color: #03063e; } /* 纯白 */


/* ==================================
   修复轮播图分页器重叠问题
   ================================== */
.speakers-swiper,
.highlights-swiper,
.special-areas-swiper { 
    /* 为底部的小圆点预留出 3rem 的高度空间，防止遮挡卡片内容 */
    padding-bottom: 3rem !important; 
}

/* 确保分页器乖乖待在预留的最底部空间内 */
.swiper-pagination {
    bottom: 0 !important;
}

/* ==================================
   通用卡片与网格 (基础结构)
   ================================== */
.card { 
    border-radius: 1rem; 
    overflow: hidden; 
    display: flex; 
    flex-direction: column; 
    height: 100%; 
    transition: all 0.3s ease; 
}

.card:hover { 
    border-color: #0051c7; 
    box-shadow: 0 10px 30px rgba(0,0,0,0.15); /* 修复了原有无效的 #000000 阴影 */
}

.card-img { 
    width: 100%; 
    aspect-ratio: 4 / 3; 
    background-size: cover; 
    background-position: center; 
}

.card-body { 
    padding: 2rem; 
    flex: 1; 
    display: flex; 
    flex-direction: column; 
}

.grid-4 { 
    display: grid; 
    grid-template-columns: 1fr; 
    gap: 2rem; 
}

.grid-2 { 
    display: grid; 
    grid-template-columns: 1fr; 
    gap: 2.5rem; 
}

.sponsor-area { 
    margin-top: auto; 
    padding-top: 1.5rem; 
    border-top: 1px solid rgb(197, 197, 197); 
}

.sponsor-logo-box { 
    height: 3.5rem; 
    width: 10rem; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    border-radius: 0.5rem; 
    font-size: 0.85rem; 
    margin-top: 0.5rem;
}

/* ==================================
   五大特色功能区
   ================================== */
.special-areas-wrapper { 
    width: 100%; 
}

.swiper-wrapper.is-grid { 
    display: grid !important; 
    grid-template-columns: repeat(5, 1fr) !important; 
    gap: 1.5rem !important; 
    transform: none !important; 
}

.swiper-wrapper.is-grid .swiper-slide { 
    margin: 10px;
    width: auto !important; 
    margin-right: 0 !important; 
}

/* ==================================
   新品发布会与品牌展示区
   ================================== */
.logo-triple-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr); 
    gap: 1rem;
    margin: 0 auto 4rem auto;
    max-width: 900px; 
}

.logo-triple-grid .logo-box {
    width: 100%;
    aspect-ratio: 2 / 1;
    display: flex;
    justify-content: center; 
    align-items: center;     
}

.logo-triple-grid .logo-box img {
    max-width: 100%;
    max-height: 100%;
    display: block;
    margin: 0 auto;
    object-fit: contain; 
}

.large-display-img {
    width: 100%;
    border-radius: 1.5rem;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.large-display-img img {
    width: 100%;
    height: auto;
    display: block;
}

.section-block-gap { 
    margin-top: 3rem; 
}

@media (max-width: 768px) {
    .logo-triple-grid {
        grid-template-columns: 1fr; 
        gap: 1.5rem; 
    }
}

/* ==================================
   组织架构
   ================================== */
.org-grid { 
    display: flex; 
    flex-direction: column; 
    gap: 1.5rem; 
}

.org-details { 
    border: 1px solid rgb(0, 0, 0); 
    border-radius: 0.75rem; 
    overflow: hidden; 
}

summary { 
    padding: 1.5rem 2rem; 
    font-size: 1.2rem; 
    font-weight: bold; 
    cursor: pointer; 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    background-color: rgba(255,255,255,0.02); 
    color: #000000;
}

summary:hover { 
    background-color: rgba(255,255,255,0.05); 
}

summary::-webkit-details-marker { 
    display: none; 
}

.details-content { 
    padding: 2rem; 
    color: #000000; 
    border-top: 1px solid rgba(255, 255, 255, 0.1); 
}

.org-list { 
    list-style-type: disc; 
    padding-left: 1.5rem; 
    line-height: 2; 
    color: #000000;
}

/* ==================================
   响应式布局
   ================================== */
@media (min-width: 640px) {
    .hero-buttons { 
        flex-direction: row; 
    }
}

@media (min-width: 768px) {
    .grid-2 { 
        grid-template-columns: repeat(2, 1fr); 
    }
    .grid-4 { 
        grid-template-columns: repeat(2, 1fr); 
    }
}

@media (min-width: 1280px) {
    .grid-4 { 
        grid-template-columns: repeat(4, 1fr); 
    }
    .org-grid { 
        flex-direction: row; 
    }
    .org-details { 
        flex: 1; 
    }
    summary { 
        border-bottom: none; 
        pointer-events: none; 
        background: transparent; 
    }
    .details-content { 
        border-top: none; 
        padding-top: 0; 
    }
    .arrow { 
        display: none; 
    }
}

/* ==================================
   Swiper 进度条定制样式 (蓝粉渐变)
   ================================== */

/* 控制进度条的底槽及位置 */
.swiper-pagination-progressbar {
    top: auto !important;
    bottom: 0 !important;
    background: rgba(255, 255, 255, 0.1) !important; /* 底槽为半透明 */
    height: 6px !important; /* 进度条厚度 */
    border-radius: 10px;    /* 两端圆角 */
    overflow: hidden;
}

/* 控制进度条的填充颜色（蓝粉渐变） */
.swiper-pagination-progressbar .swiper-pagination-progressbar-fill {
    /* 使用大会品牌色：深蓝过渡到玫红 */
    background: linear-gradient(to right, #0051c7, #e6007e) !important; 
    border-radius: 10px;
}

/* ==================================
   品牌展示区：三行无缝持续滚动 (纯展示版)
   ================================== */
.marquee-container {
    width: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 2.5rem; 
    padding: 3rem 0;
}

.marquee-row {
    display: flex;
    width: max-content;
    /* 删除了 hover 暂停逻辑，确保一直滚动 */
}

.marquee-track {
    display: flex;
    align-items: center;
    gap: 4rem; 
    padding-right: 4rem; 
}

.marquee-track img {
    height: 50px; 
    width: auto;
    max-width: 180px;
    object-fit: contain;
    /* 删除了滤镜和过渡效果，直接展示原图 */
    display: block;
}

/* 动画定义 */
.scroll-left { 
    animation: scrollLeftAnim 40s linear infinite; 
}
.scroll-right { 
    animation: scrollRightAnim 40s linear infinite; 
}

@keyframes scrollLeftAnim {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

@keyframes scrollRightAnim {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}

/* 手机端适配 */
@media (max-width: 768px) {
    .marquee-track { gap: 2rem; padding-right: 2rem; }
    .marquee-track img { height: 35px; }
    .marquee-container { gap: 1.5rem; padding: 1.5rem 0; }
}

/* ==================================
   新品发布区：大图轮播
   ================================== */
.new-products-swiper {
    width: 100%;
    border-radius: 1.5rem;
    overflow: hidden;
    padding-bottom: 3rem !important; /* 给底部的进度条留空间 */
}

.product-launch-card {
    position: relative;
    width: 100%;
    aspect-ratio: 21 / 9; /* 呈现电影级超宽屏质感 */
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: flex-end; /* 让内容自动沉底 */
    border-radius: 1.5rem;
    overflow: hidden;
}

/* 底部黑色渐变遮罩，确保文字在任何图片背景下都清晰可见 */
.product-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 100%);
    z-index: 1;
}

/* 左下角品牌型号文字容器 */
.product-info {
    position: relative;
    z-index: 2;
    padding: 2.5rem 3rem; /* 留出呼吸感边距 */
    text-align: left;
}

.product-brand {
    color: #ffffff;
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
    text-shadow: 0 4px 10px rgba(0,0,0,0.5); /* 强化立体感 */
}

.product-model {
    color: #78caf0; /* 科技蓝配色提亮型号 */
    font-size: 1.3rem;
    font-weight: bold;
    letter-spacing: 1px;
}

/* 轮播图左右箭头定制 (PC端) */
.new-products-swiper .swiper-button-next,
.new-products-swiper .swiper-button-prev {
    color: #ffffff;
    background: rgba(0,0,0,0.4);
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    top: 45%; 
    transition: background 0.3s ease;
}
.new-products-swiper .swiper-button-next:hover,
.new-products-swiper .swiper-button-prev:hover {
    background: rgba(0,0,0,0.8);
}
.new-products-swiper .swiper-button-next::after,
.new-products-swiper .swiper-button-prev::after {
    font-size: 1.2rem;
    font-weight: bold;
}

/* 手机端智能适配 */
@media (max-width: 768px) {
    .product-launch-card {
        aspect-ratio: 4 / 3; /* 手机端改成偏方一点，防止过扁看不清产品 */
    }
    .product-info {
        padding: 1.5rem;
    }
    .product-brand {
        font-size: 1.8rem;
    }
    .product-model {
        font-size: 1.1rem;
    }
    .new-products-swiper .swiper-button-next,
    .new-products-swiper .swiper-button-prev {
        display: none; /* 手机端用户习惯用手滑，隐藏箭头保持干净 */
    }
}