:root {
    --primary-blue: #006855; /* #0a4da2;*/ /* 新主色调 */
    --primary-light: #e6f0fa;
    --primary-dark: #006855; /* #083d80; */
    --primary-darker: #008153; /* #063066; */
    --primary-accent: #0a4da233;

    /* 主橙色调 */
    --primary-orange: #dd6c32;
    --primary-orange-dark: #e4895b;
    --primary-orange-light: #e4895b;
    --secondary-orange: #eba784;
    --light-orange: #f1c4ad;

    --text-dark: #2c3e50;
    --text-medium: #4a5568;
    --text-light: #718096;
    --border-color: #cbd5e0;
    --bg-light: #f8fafc;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --radius-sm: 4px; /* 减小圆角 */
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-full: 999px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

body {
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh; /* 确保页面占满整个视口高度 */
    margin: 0; /* 新增：移除默认margin */
}

/* 新增：内容容器样式 */
.content-wrapper {
    flex: 1; /* 占据剩余空间，将页脚推到底部 */
}

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

/* 头部样式 */
header {
    background: var(--primary-blue);
    color: white;
    padding: 20px 0;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

header::before,
header::after {
    content: '';
    position: absolute;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
}

header::before {
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
}

header::after {
    bottom: -30px;
    left: 10%;
    width: 150px;
    height: 150px;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    position: relative;
    z-index: 1;
}

.logo {
    display: flex;
    align-items: center;
}

.qrcode-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: white;
    padding: 4px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: white;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.logo:hover .logo-icon {
    transform: scale(1.05);
}

.logo-icon i {
    color: var(--primary-blue);
    font-size: 24px;
}

.logo-text {
    font-size: 24px;
    font-weight: bold;
    letter-spacing: 1px;
}

.logo-subtext {
    font-size: 13px;
    opacity: 0.9;
    margin-top: 2px;
}

.search-box {
    display: flex;
    align-items: center;
    position: relative;
}

.search-box input {
    padding: 10px 18px;
    border: none;
    border-radius: var(--radius-md) 0 0 var(--radius-md); /* 减小圆角 */
    width: 300px;
    font-size: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
}

.search-box button {
    background: white;
    border: none;
    color: var(--primary-blue);
    padding: 10px 18px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0; /* 减小圆角 */
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    font-weight: 500;
}

.search-box button:hover {
    background: var(--primary-light);
}

/* 筛选区域样式 - 选择项与名称同行 */
.filters-section {
    background: white;
    margin: 20px 0;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.filters-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: var(--primary-blue);
    color: white;
    cursor: pointer;
}

.filters-header h2 {
    display: flex;
    align-items: center;
    font-size: 17px;
    font-weight: 600;
}

.filters-header h2 i {
    margin-right: 10px;
}

.filters-header .toggle-icon {
    transition: var(--transition);
}

.filters-expanded .toggle-icon {
    transform: rotate(180deg);
}

.filters-content {
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, padding 0.3s ease;
}

.filters-expanded .filters-content {
    padding: 15px 30px;
    max-height: 1000px;
}

.filter-row {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.filter-row:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.filter-label {
    font-size: 14px;
    color: var(--text-dark);
    font-weight: 500;
    display: flex;
    align-items: center;
    min-width: 100px; /* 固定标签宽度，使布局更整齐 */
    margin-right: 15px;
}

.filter-label i {
    margin-right: 8px;
    color: var(--primary-orange); /* var(--primary-blue); */
}

.filter-options-container {
    flex: 1;
    overflow: hidden;
}

.filter-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    width: 100%;
    margin-top: 2px;
}

.filter-option {
    background: var(--bg-light);
    padding: 6px 14px;
    border-radius: var(--radius-md); /* 减小圆角 */
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    font-size: 13px;
    display: flex;
    align-items: center;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.filter-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(10, 77, 162, 0.05);
    transition: var(--transition);
}

.filter-option:hover::before {
    left: 0;
}

.filter-option:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    transform: translateY(-2px);
}

.filter-option.active {
    background: var(--primary-orange); /* var(--primary-blue); */
    color: white;
    border-color: var(--primary-orange); /* var(--primary-blue); */
}

.filter-option.active:hover {
    background: var(--primary-orange); /* var(--primary-dark); */
    transform: translateY(-2px);
}

/* 分会筛选特殊样式 - 水平滚动 */
.branch-filter {
    flex-grow: 1;
    max-height: 88px;
    overflow-x: auto;
    padding: 3px 8px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-light);
    scrollbar-width: thin;
    scrollbar-color: var(--primary-blue) transparent;
}

.branch-filter::-webkit-scrollbar {
    height: 3px;
}

.branch-filter::-webkit-scrollbar-thumb {
    background-color: var(--primary-blue);
    border-radius: 3px;
}

.branch-filter .filter-options {
    display: inline-flex;
}

.filter-buttons {
    display: flex;
    gap: 12px;
    margin-top: 15px;
    justify-content: flex-end;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.btn {
    padding: 8px 20px;
    border: none;
    border-radius: var(--radius-md); /* 减小圆角 */
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    align-items: center;
    box-shadow: var(--shadow-sm);
    font-size: 14px;
}

.btn i {
    margin-right: 8px;
}

.btn-primary {
    background: var(--primary-orange); /* var(--primary-blue); */
    color: white;
}

.btn-primary:hover {
    background: var(--primary-orange); /* var(--primary-dark); */
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    background: var(--primary-orange); /* var(--primary-darker); */
    transform: translateY(0);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--primary-orange); /* var(--primary-blue); */
    color: var(--primary-orange); /* var(--primary-blue); */
}

.btn-outline:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline:active {
    transform: translateY(0);
}

/* 会议列表样式 */
.conference-section {
    margin: 20px 0;
    /* flex: 1;  让内容区域占据剩余空间，将页脚推到底部 */
}

.section-title {
    display: flex;
    align-items: center;
    color: var(--primary-blue);
    margin-bottom: 15px;
    font-size: 19px;
    font-weight: 600;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--primary-light);
}

.section-title i {
    margin-right: 10px;
    background: var(--primary-blue);
    color: white;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.conference-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.conference-item {
    display: flex;
    background: white;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid transparent;
}

.conference-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.conference-date {
    background: var(--primary-blue);
    color: white;
    padding: 15px 12px;
    min-width: 140px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.conference-date .day {
    font-size: 36px;
    font-weight: bold;
    line-height: 1;
}

.conference-date .month {
    font-size: 18px;
    margin-top: 3px;
    font-weight: 500;
}

.conference-date .year {
    font-size: 16px;
    margin-top: 2px;
    opacity: 0.9;
}

.conference-details {
    padding: 15px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.conference-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
    transition: var(--transition);
}

.conference-item:hover .conference-title {
    color: var(--primary-blue);
}

.conference-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 12px;
}

.meta-item {
    display: flex;
    align-items: center;
    color: var(--text-light);
    font-size: 13px;
    transition: var(--transition);
}

.conference-item:hover .meta-item {
    color: var(--text-medium);
}

.meta-item i {
    margin-right: 6px;
    color: var(--primary-blue);
    width: 16px;
    text-align: center;
}

.conference-status {
    display: inline-block;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: bold;
    margin-bottom: 10px;
    align-self: flex-start;
    border: 1px solid transparent;
}

.status-upcoming {
    background-color: rgba(10, 77, 162, 0.1);
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.status-past {
    background-color: #f1f5f9;
    color: var(--text-light);
    border-color: var(--border-color);
}

.status-live {
    background-color: rgba(10, 77, 162, 0.1);
    color: var(--primary-orange); /* var(--primary-blue); */
    border-color: var(--primary-orange); /* var(--primary-blue); */
}

.conference-actions {
    margin-top: auto;
    display: flex;
    justify-content: flex-end;
}

.btn-enter {
    background: var(--primary-orange); /* var(--primary-blue); */
    color: white;
    padding: 6px 18px;
    border: none;
    border-radius: var(--radius-md); /* 减小圆角 */
    cursor: pointer;
    font-weight: 500;
    display: flex;
    align-items: center;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    font-size: 14px;
    text-decoration: none;
}

.btn-enter i {
    margin-left: 6px;
    font-size: 13px;
    transition: var(--transition);
}

.btn-enter:hover {
    background: var(--primary-orange); /* var(--primary-dark); */
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-enter:hover i {
    transform: translateX(3px);
}

.btn-enter:active {
    transform: translateY(0);
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 30px 0 20px;
    gap: 8px;
}

.pagination-info {
    color: var(--text-medium);
    font-size: 14px;
    margin: 0 10px;
}

.pagination-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: white;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
}

.pagination-btn:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.pagination-btn.active {
    background: var(--primary-blue);
    color: white;
    border-color: var(--primary-blue);
    font-weight: 600;
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    border-color: var(--border-color);
    color: var(--text-light);
}

.pagination-btn:disabled:hover {
    border-color: var(--border-color);
    color: var(--text-light);
}

/* 简化的页脚样式 */
footer {
    background: var(--primary-dark);
    color: white;
    padding: 20px 0;
    margin-top: 40px;
}

.footer-content {
    /*display: flex;*/
    justify-content: space-between;
    /*align-items: center;*/
    flex-wrap: wrap;
    gap: 10px;
    text-align: center;
}

.footer-copyright {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-admin {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
    display: flex;
    align-items: center;
}

.footer-admin i {
    margin-right: 5px;
}

.footer-admin:hover {
    color: white;
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .header-top {
        flex-direction: column;
        align-items: flex-start;
    }

    .search-box {
        margin-top: 15px;
        width: 100%;
    }

    .search-box input {
        width: 100%;
    }

    .conference-item {
        flex-direction: column;
    }

    .conference-date {
        flex-direction: row;
        justify-content: space-around;
        min-width: 100%;
        padding: 12px;
    }

    .conference-date .day,
    .conference-date .month,
    .conference-date .year {
        margin: 0 5px;
    }

    .filter-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .filter-label {
        margin-bottom: 8px;
        min-width: auto;
    }

    .branch-filter {
        max-height: 100px;
        overflow-y: auto;
        overflow-x: hidden;
        width: 100%;
    }

    .branch-filter .filter-options {
        display: flex;
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .filter-options {
        gap: 5px;
    }

    .filter-option {
        padding: 5px 10px;
        font-size: 12px;
    }

    .conference-meta {
        flex-direction: column;
        gap: 6px;
    }

    .filter-buttons {
        flex-direction: column;
    }

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

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .pagination-info {
        display: none;
    }

    .pagination-btn:not(.pagination-btn:first-child):not(.pagination-btn:last-child) {
        display: none;
    }

    .pagination-btn:nth-child(2),
    .pagination-btn:nth-last-child(2) {
        display: flex;
    }
}