/**
 * 高级标题和搜索区域样式
 * Hero Section with Advanced Design
 */

/* 主要区域容器 */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 24px;
    padding: 60px 40px 40px;
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.15);
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.03)"/><circle cx="20" cy="80" r="0.5" fill="rgba(255,255,255,0.03)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

/* 主标题区域 */
.hero-header {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    z-index: 2;
}

.hero-title-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.hero-main-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 20px 0;
    color: #ffffff;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.title-text {
    display: inline-block;
    animation: fadeInUp 0.8s ease-out;
}

.title-highlight {
    display: inline-block;
    background: linear-gradient(45deg, #ffd89b 0%, #19547b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out 0.2s both;
    position: relative;
}

.title-highlight::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(45deg, #ffd89b 0%, #19547b 100%);
    border-radius: 2px;
    animation: expandWidth 1s ease-out 1s both;
}

.hero-subtitle {
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.stats-badge {
    display: inline-flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    padding: 12px 24px;
    color: #ffffff;
    font-size: 16px;
    font-weight: 500;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.stats-badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.stats-icon {
    margin-right: 8px;
    font-size: 18px;
    color: #ffd89b;
}

.highlight-number {
    font-weight: 700;
    color: #ffd89b;
    margin: 0 4px;
}

/* 通告栏 */
.announcement-bar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px;
    margin: 30px 0;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    position: relative;
    animation: slideInDown 0.8s ease-out 0.6s both;
}

.announcement-content {
    display: flex;
    align-items: center;
    padding: 16px 24px;
    position: relative;
}

.announcement-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 16px;
    animation: pulse 2s infinite;
}

.announcement-icon i {
    color: #ffffff;
    font-size: 16px;
}

.announcement-text {
    flex: 1;
    min-width: 0;
}

.announcement-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: #667eea;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.announcement-message {
    display: block;
    font-size: 14px;
    color: #2d3748;
    line-height: 1.4;
    font-weight: 500;
}

.announcement-close {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #a0aec0;
    cursor: pointer;
    transition: all 0.3s ease;
}

.announcement-close:hover {
    background: rgba(160, 174, 192, 0.1);
    color: #4a5568;
    transform: scale(1.1);
}

.announcement-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    animation: progressBar 10s linear infinite;
}

/* 搜索区域 */
.search-section {
    position: relative;
    z-index: 2;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.search-wrapper {
    max-width: 700px;
    margin: 0 auto;
}

.search-header {
    text-align: center;
    margin-bottom: 24px;
}

.search-title {
    font-size: 24px;
    font-weight: 600;
    color: #ffffff;
    margin: 0 0 8px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.search-title-icon {
    font-size: 20px;
    color: #ffd89b;
}

.search-subtitle {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    font-weight: 400;
}

/* 快速统计 */
.quick-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 40px;
    position: relative;
    z-index: 2;
}

.stat-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    transition: all 0.3s ease;
    animation: fadeInUp 0.8s ease-out calc(1s + var(--delay, 0s)) both;
}

.stat-card:nth-child(1) { --delay: 0s; }
.stat-card:nth-child(2) { --delay: 0.1s; }
.stat-card:nth-child(3) { --delay: 0.2s; }

.stat-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.stat-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    transition: all 0.3s ease;
}

.stat-icon i {
    font-size: 20px;
    color: #ffd89b;
}

.stat-card:hover .stat-icon {
    transform: scale(1.1);
    background: rgba(255, 255, 255, 0.3);
}

.stat-info {
    color: #ffffff;
}

.stat-number {
    font-size: 28px;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 8px;
    color: #ffd89b;
}

.stat-label {
    font-size: 14px;
    font-weight: 500;
    opacity: 0.9;
}

/* 动画定义 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes expandWidth {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes progressBar {
    0% {
        width: 0%;
    }
    100% {
        width: 100%;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-section {
        padding: 40px 24px 30px;
        border-radius: 16px;
    }
    
    .hero-main-title {
        font-size: 32px;
    }
    
    .search-title {
        font-size: 20px;
    }
    
    .quick-stats {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-top: 30px;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .announcement-content {
        padding: 12px 16px;
    }
    
    .announcement-icon {
        width: 36px;
        height: 36px;
        margin-right: 12px;
    }
}

@media (max-width: 480px) {
    .hero-section {
        padding: 30px 16px 24px;
    }
    
    .hero-main-title {
        font-size: 28px;
    }
    
    .stats-badge {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .search-title {
        font-size: 18px;
        flex-direction: column;
        gap: 8px;
    }
    
    .stat-number {
        font-size: 24px;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    .announcement-bar {
        background: rgba(45, 55, 72, 0.95);
    }
    
    .announcement-message {
        color: #e2e8f0;
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .hero-section {
        border: 2px solid #ffffff;
    }
    
    .announcement-bar {
        border: 1px solid #4a5568;
    }
    
    .stat-card {
        border: 1px solid rgba(255, 255, 255, 0.5);
    }
}

/* 减少动画模式支持 */
@media (prefers-reduced-motion: reduce) {
    .hero-section *,
    .announcement-bar *,
    .stat-card * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}