/* ================================
   m_default14 - 页面区块样式
   Hero、新闻、嘉宾、页脚等
   ================================ */

/* ================================
   全屏 Hero 区域
   ================================ */
.hero-section {
    position: relative;
    height: calc(100vh - var(--topbar-height));
    min-height: 500px;
    max-height: 900px;
    overflow: hidden;
}

.hero-swiper {
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: relative;
    width: 100%;
    height: 100%;
}

.hero-slide img,
.hero-slide picture {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Hero 遮罩层 */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.3) 50%, rgba(0,0,0,0.5) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--text-light);
    padding: var(--spacing-lg);
}

/* Hero 内容 */
.hero-content {
    max-width: 900px;
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-size: clamp(1.75rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 4px 12px rgba(0,0,0,0.3);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    opacity: 0.95;
    line-height: 1.6;
}

/* Hero 操作按钮 */
.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

.btn-hero {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-xl);
    border-radius: var(--radius-lg);
    font-weight: 700;
    text-decoration: none;
    transition: all var(--transition-base) var(--transition-timing);
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-hero-primary {
    background-color: rgba(255,255,255,0.2);
    color: var(--text-light);
    backdrop-filter: blur(10px);
}

.btn-hero-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    font-weight: 800;
    background-color: rgba(255,255,255,0.3);
    color: var(--text-light);
}

.btn-hero-secondary {
    background-color: rgba(255,255,255,0.1);
    color: var(--text-light);
    border: 2px solid rgba(255,255,255,0.5);
    backdrop-filter: blur(10px);
}

.btn-hero-secondary:hover {
    font-weight: 800;
    background-color: rgba(255,255,255,0.2);
    color: var(--text-light);
}

/* Hero 倒计时 */
.hero-countdown {
    position: absolute;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    color: var(--text-light);
}

.hero-countdown-label {
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-xs);
}

.hero-countdown-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
}

/* ================================
   内容区块
   ================================ */
.content-section {
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
    border-radius: var(--radius-full);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 700px;
    margin: var(--spacing-md) auto 0;
}

/* ================================
   简介区块
   ================================ */
.intro-section {
    background-color: var(--bg-color);
    padding: var(--spacing-2xl) 0;
}

.intro-content {
    max-width: 900px;
    margin: 0 auto;
}

.intro-text {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
    text-align: left;
}

/* ================================
   新闻动态
   ================================ */
.news-section {
    background-color: var(--bg-color);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.news-item {
    display: flex;
    align-items: center;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base) var(--transition-timing);
}

.news-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.news-date {
    flex-shrink: 0;
    width: 80px;
    text-align: center;
    padding-right: var(--spacing-md);
    border-right: 2px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
}

.news-date-day {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--secondary-color);
    line-height: 1;
}

.news-date-year {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.news-content {
    flex: 1;
    padding-left: var(--spacing-lg);
}

.news-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.news-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.news-excerpt {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ================================
   演讲嘉宾
   ================================ */
.guests-section {
    background-color: var(--bg-color);
}

.guests-scroll {
    display: flex;
    gap: var(--spacing-lg);
    overflow-x: auto;
    padding: var(--spacing-md) 0;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.guests-scroll::-webkit-scrollbar {
    height: 6px;
}

.guests-scroll::-webkit-scrollbar-track {
    background: var(--bg-color);
    border-radius: var(--radius-full);
}

.guests-scroll::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: var(--radius-full);
}

.guest-card {
    flex: 0 0 auto;
    width: 220px;
    scroll-snap-align: start;
    background: var(--bg-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-base) var(--transition-timing);
}

.guest-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.guest-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-md);
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--text-primary);
    box-shadow: var(--shadow-md);
}

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

.guest-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.guest-name a {
    color: var(--text-primary);
    text-decoration: none;
}

.guest-title {
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

.guest-bio {
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.guest-bio a {
    color: var(--text-primary);
    text-decoration: none;
}

/* ================================
   重要日期
   ================================ */
.dates-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--text-light);
}

.dates-section .section-title {
    color: var(--text-light);
}

.dates-section .section-title::after {
    background: linear-gradient(90deg, var(--secondary-color), var(--text-light));
}

.dates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.date-card {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid rgba(255,255,255,0.2);
    transition: all var(--transition-base) var(--transition-timing);
}

.date-card:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-4px);
}

.date-card-label {
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
    margin-bottom: var(--spacing-xs);
}

.date-card-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

/* ================================
   侧边栏内容区
   ================================ */
.sidebar-content-section {
    background-color: var(--bg-color);
    padding: var(--spacing-xl) var(--spacing-lg);
}

.sidebar-content-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.sidebar-content-card img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

.sidebar-content-card table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
}

.sidebar-content-card th,
.sidebar-content-card td {
    padding: var(--spacing-sm);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-content-card th {
    font-weight: 600;
    background-color: var(--bg-color);
}

/* ================================
   页脚
   ================================ */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--primary-color);
    color: var(--sidebar-text);
    padding: var(--spacing-sm) var(--spacing-md) 0;
    z-index: var(--z-sticky);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--secondary-color);
}

.footer-section-content {
    color: var(--sidebar-text-muted);
    line-height: var(--line-height-relaxed);
}

.footer-section-content a {
    color: var(--sidebar-text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-section-content a:hover {
    color: var(--sidebar-text);
}

.footer-bottom {
    border-top: 1px solid var(--sidebar-border);
    padding: var(--spacing-xs) 0;
    text-align: right;
    color: var(--sidebar-text-muted);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.footer-bottom p {
    margin: 0;
}

.footer-bottom a {
    color: var(--sidebar-text-muted);
    text-decoration: none;
}

.footer-bottom a:hover {
    color: var(--sidebar-text);
}