:root {
    --primary-green: #3D7D56; /* 艾草绿 */
    --primary-blue: #1A3A59; /* 深海蓝 */
    --accent-gold: #D4AF37;   /* 金色点缀 */
    --text-main: #333333;     /* 主要文字 */
    --text-sub: #666666;      /* 次要文字 */
    --bg-light: #FAFAFA;      /* 浅灰背景 */
    --bg-white: #FFFFFF;

    --spacing-section: 40px;  /* 版块垂直间距 */
}
/* 标签胶囊 (Tag Pills) */
.tag-pill {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: 10px;
}
.tag-blue { background: var(--primary-blue); color: white; }
.tag-green { background: var(--primary-green); color: white; }
.tag-gold { background: var(--accent-gold); color: white; }
/* =========================================
       3. 页面主要内容区域 (Content Styles)
       ========================================= */
/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
    min-height: 650px;
    padding: 120px 20px 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    width: 100%;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    font-weight: 700;
    line-height: 1.2;
}

.hero h2 {
    font-size: 1.2rem;
    font-weight: 300;
    margin-bottom: 30px;
    opacity: 0.9;
}
.hero h3 {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 30px;
    opacity: 0.9;
}

.origin-badge {
    background: rgba(212, 175, 55, 0.2);
    border: 1px solid var(--accent-gold);
    color: var(--accent-gold);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
    display: inline-block;
}

.phonetic {
    font-family: "Times New Roman", serif;
    font-style: italic;
    color: var(--accent-gold);
    font-size: 1.5rem;
    margin-bottom: 10px;
    display: block;
}

.btn-primary {
    background-color: var(--primary-green);
    color: white;
    padding: 12px 35px;
    border-radius: 30px;
    font-weight: bold;
    border: none;
    cursor: pointer;
    transition: transform 0.2s;
    font-size: 1rem;
    margin: 10px;
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid white;
    color: white;
    padding: 12px 35px;
    border-radius: 30px;
    font-weight: bold;
    cursor: pointer;
    font-size: 1rem;
    margin: 10px;
}

/* Terminology Section */
.mission-section {
    padding: 80px 20px;
    background-color: white;
}

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

.section-title {
    color: var(--primary-blue);
    font-size: 2.2rem;
    margin-bottom: 10px;
    font-weight: bold;
}

.section-subtitle {
    color: #666;
    font-size: 1rem;
}

.term-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}
.term-comparison .new p{
    margin-top: 15px;
    font-size: 0.9rem;
    opacity: 0.8;
    color: var(--primary-green);
}
.term-box {
    padding: 40px;
    border-radius: 10px;
    text-align: left;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.term-box.old {
    background-color: #f4f4f4;
    color: #777;
    border-left: 5px solid #ccc;
}

.term-box.new {
    background-color: rgba(61, 125, 86, 0.08);
    border: 2px solid var(--primary-green);
    box-shadow: 0 10px 20px rgba(61, 125, 86, 0.1);
}

.term-box h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.highlight-green {
    color: var(--primary-green);
    font-weight: bold;
    font-size: 1.1rem;
}

.def-item {
    margin-bottom: 10px;
    padding-left: 15px;
    border-left: 3px solid var(--primary-green);
}
.container {
    max-width: 1380px;
    margin: 0 auto;
    padding: 0 20px;
}
/* =========================================
   3. 前沿洞察版块 (Insights Section)
   ========================================= */
.insights-section {
    padding: var(--spacing-section) 0;
    background-color: var(--bg-light); /* 浅灰背景区分层级 */
}

.insights-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr; /* 左侧学术大图占 60% */
    gap: 30px;
}

/* 左侧：学术头条卡片 */
.academic-feature {
    background: var(--bg-white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    border: 1px solid #eee;
    height: 100%;
}

.academic-img {
    height: 300px;
    background: #203A43;
    position: relative;
}

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

.academic-content {
    padding: 30px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.feature-title {
    font-size: 1.6rem;
    color: var(--primary-blue);
    font-weight: bold;
    margin-bottom: 15px;
    line-height: 1.4;
}

.feature-desc {
    color: var(--text-sub);
    margin-bottom: 20px;
    font-size: 1rem;
}

.read-more {
    color: var(--primary-green);
    font-weight: bold;
    font-size: 0.95rem;
    text-decoration: none;
    transition: opacity 0.3s;
}
.read-more:hover { opacity: 0.8; }

/* 右侧：资讯列表 */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-card {
    background: var(--bg-white);
    padding: 25px;
    border-radius: 10px;
    border-left: 4px solid var(--primary-blue); /* 左侧深蓝强调线 */
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.news-card:hover {
    transform: translateX(5px); /* 悬停微动效果 */
}

.news-meta {
    font-size: 0.8rem;
    color: #999;
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.news-title {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--text-main);
    line-height: 1.5;
}

.news-title a:hover {
    color: var(--primary-green);
}

/* =========================================
   4. 全球展会预告 (Events Section)
   ========================================= */
.events-section {
    padding: var(--spacing-section) 0;
    background: var(--bg-white);
}

.events-list {
    max-width: 1000px;
    margin: 0 auto;
}

.event-row {
    display: flex;
    align-items: center;
    padding: 25px 0;
    border-bottom: 1px solid #eee; /* 分隔线 */
}

.event-row:last-child {
    border-bottom: none;
}

/* 日期方块 */
.event-date {
    width: 120px;
    text-align: center;
    margin-right: 30px;
    background: rgba(61, 125, 86, 0.05); /* 极淡的绿色背景 */
    padding: 10px;
    border-radius: 8px;
    border: 1px solid rgba(61, 125, 86, 0.2);
    flex-shrink: 0;
}

.date-num {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-green);
    line-height: 1;
}

.date-my {
    font-size: 0.8rem;
    color: #666;
    text-transform: uppercase;
    margin-top: 4px;
    font-weight: 600;
}

.event-details {
    flex-grow: 1;
    padding-right: 20px;
}

.event-title {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary-blue);
    margin-bottom: 5px;
}

.event-loc {
    font-size: 0.9rem;
    color: var(--text-sub);
}

/* 展会按钮 */
.btn-event {
    padding: 8px 25px;
    border: 1px solid var(--primary-blue);
    color: var(--primary-blue);
    background: transparent;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
}

.btn-event:hover {
    background: var(--primary-blue);
    color: white;
}
/* =========================================
   5. 技艺档案馆 (Archive Section)
   ========================================= */
.archive-section {
    padding: var(--spacing-section) 0;
    background-color: var(--bg-light);
}

.archive-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.archive-card {
    background: var(--bg-white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid #eee;
    display: flex;
    flex-direction: column;
}

.archive-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.archive-img {
    height: 200px;
    background-color: #eee;
    position: relative;
    overflow: hidden;
}

.archive-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.archive-card:hover .archive-img img {
    transform: scale(1.05); /* 图片微放大效果 */
}

.archive-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.tag {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: 12px;
    align-self: flex-start;
}

.tag-heritage {
    background: #8B4513;
    color: white;
}

.tag-industry {
    background: #4682B4;
    color: white;
}

.tag-modern {
    background: var(--accent-gold);
    color: white;
}
.card-title {
    font-size: 1.3rem;
    color: var(--primary-blue);
    margin-bottom: 10px;
    font-weight: bold;
}

.card-desc {
    color: var(--text-sub);
    font-size: 0.9rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.card-link {
    color: var(--primary-blue);
    font-weight: bold;
    font-size: 0.9rem;
    margin-top: auto; /* 强制底部对齐 */
    text-decoration: none;
}

.card-link:hover {
    color: var(--primary-green);
}

/* =========================================
   6. 响应式适配 (Media Queries)
   ========================================= */
@media (max-width: 768px) {
    /* 前沿洞察：变为单列 */
    .insights-layout {
        grid-template-columns: 1fr;
    }

    /* 展会列表：变为堆叠式 */
    .event-row {
        flex-direction: column;
        align-items: flex-start;
    }
    .event-date {
        margin-bottom: 15px;
        text-align: left;
        width: auto;
        display: inline-block;
    }
    .btn-event {
        margin-top: 15px;
    }

    /* 档案馆：变为单列 */
    .archive-grid {
        grid-template-columns: 1fr;
    }
}
/* =========================================
    4. 震撼版：全球生态繁荣网络 (Immersive Prosperity Network)
    ========================================= */
.ecology-section {
    position: relative;
    width: 100%;
    /* 高度增加，提供沉浸感 */
    height: 550px;
    /* 深色渐变背景，营造高端、深邃的氛围，让照片更跳脱 */
    background: linear-gradient(to bottom, #0F2027, #203A43, #2C5364);
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* --- 核心层：三轨道照片流 --- */
.eco-flow-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 20px 0;
    /* 稍微倾斜一点角度，增加动感和冲击力 */
    transform: rotate(-2deg) scale(1.1);
    opacity: 0.6; /* 降低纹理层的透明度，让位于文字 */
    filter: contrast(1.2); /* 提高对比度 */
    pointer-events: none; /* 让鼠标可以直接穿透点到按钮 */
}

.flow-row {
    width: 100%;
    overflow: hidden;
    display: flex;
}

/* 轨道通用样式 */
.flow-track {
    display: flex;
    width: max-content;
}

/* 顶部轨道：慢速，向左 */
.track-top {
    animation: scrollLeft 360s linear infinite;
}
.track-top .flow-card { /*height: 360px;*/ width: 180px; opacity: 0.7; }

/* 中部轨道：快速，向右 (视觉焦点) */
.track-middle {
    animation: scrollRight 240s linear infinite;
    margin: 15px 0;
}
/* 中间轨道照片更大、更亮 */
.track-middle .flow-card { height: 180px; width: 280px; opacity: 1; box-shadow: 0 10px 30px rgba(0,0,0,0.5); border: 2px solid rgba(212, 175, 55, 0.5); }

/* 底部轨道：中速，向左 */
.track-bottom {
    animation: scrollLeft 300s linear infinite;
}
.track-bottom .flow-card { height: 140px; width: 200px; opacity: 0.8; }


/* 照片卡片基础样式 */
.flow-card {
    flex-shrink: 0;
    margin-right: 15px;
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.flow-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.9); /* 稍微压暗，让文字更突出 */
}

/* --- 动画定义 --- */
@keyframes scrollLeft {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
@keyframes scrollRight {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}


/* --- 顶层：行动号召中心 (The "Join Us" Overlay) --- */
.eco-cta-overlay {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 800px;
    padding: 40px;
    /* 玻璃拟态背景，增加高级感 */
    background: rgba(26, 58, 89, 0.4);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.eco-cta-title {
    font-size: 2.5rem; /* 超大标题 */
    font-weight: 800;
    color: white;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
    /* 文字渐变光泽 */
    background: linear-gradient(to right, #fff, var(--accent-gold), #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.eco-cta-subtitle {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 30px;
    line-height: 1.5;
}

.highlight-gold {
    color: var(--accent-gold);
    font-weight: bold;
}

/* 震撼的加入按钮 */
.btn-join-cta {
    background: linear-gradient(45deg, var(--accent-gold), #FDC830);
    color: #1A3A59;
    font-size: 1.1rem;
    font-weight: bold;
    padding: 15px 50px;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.4);
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-join-cta:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 20px 40px rgba(212, 175, 55, 0.6);
    background: linear-gradient(45deg, #FDC830, var(--accent-gold));
}

/* 移动端适配 */
@media screen and (max-width: 768px) {
    .eco-cta-overlay {padding: 20px;}
    .ecology-section { height: 450px; }
    .eco-cta-title { font-size: 1.5rem; }
    .eco-cta-subtitle { font-size: 0.9rem; }
    .btn-join-cta { padding: 12px 30px; font-size: 1rem; }
    /* 手机上减弱背景流动的干扰 */
    .eco-flow-container { opacity: 0.4; transform: rotate(0deg) scale(1); }
    .track-top .flow-card { height: 80px; width: 120px; }
    .track-middle .flow-card { height: 120px; width: 180px; }
    .track-bottom .flow-card { height: 90px; width: 140px; }
}
/* 响应式调整 (Content) */
@media screen and (max-width: 768px) {
    .hero h1 { font-size: 1.5rem; }
    .hero h3 { font-size: 0.9rem; }
    .hero h2 { font-size: 1rem; }
    .section-title { font-size: 1.5rem; }
    .hero-content { padding: 0; }
    .logo { font-size: 1.2rem; }
    .btn-primary, .btn-secondary { font-size: 0.8rem; }
    .term-box h3 { font-size: 1.3rem; }
    .card-title { font-size: 1.2rem; }
    .event-date { font-size: 1.2rem; }
    h3 { font-size: 1rem; }
    .term-comparison { grid-template-columns: 1fr; gap: 20px; }
    .archive-grid { grid-template-columns: 1fr; }
    .feature-title {font-size: 1.2rem;}
}