/* 基础变量与重置 */
:root {
    --primary-color: #0b164a; /* 深蓝 */
    --accent-color: #1a73e8; /* 亮蓝 */
    --text-main: #333333;
    --text-light: #666666;
    --bg-gray: #f8f9fa;
    --border-color: #eaeaea;
    --pink-accent: #df7fb7; /* 会议主题粉色点缀 */
}

/* 会场网格布局 */
.sessions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

/* 会场卡片 */
.session-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 30px 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    transition: all 0.3s ease;
    border-left: 6px solid var(--primary-color);
    /* === 新增：链接样式重置 === */
    text-decoration: none;
    color: inherit;
}

    .session-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0,0,0,0.08);
        border-left-color: var(--pink-accent);
    }

    /* === 新增：移动端点击时的反馈效果 === */
    .session-card:active {
        transform: translateY(-2px) scale(0.98);
        box-shadow: 0 4px 8px rgba(0,0,0,0.08);
    }

    .session-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0,0,0,0.08);
        border-left-color: var(--pink-accent); /* 悬浮时变成粉色强调 */
    }

/* 会场编号 (IWACCE-XXX' 27) */
.session-code {
    font-size: 0.9rem;
    color: var(--accent-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

/* 会场全称 */
.session-name {
    font-size: 1.3rem;
    color: var(--primary-color);
    font-weight: bold;
    line-height: 1.4;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .sessions-grid {
        grid-template-columns: 1fr; /* 手机端强制单列 */
        gap: 16px;
    }

    .session-card {
        padding: 24px 20px;
    }

    .session-name {
        font-size: 1.15rem;
    }
}