/* Homepage CSS - 优化版本 */

/* Hero Section - 轻量化设计 */
.hero-section {
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(248,250,252,0.9) 100%);
    color: #2d3748;
    padding: 80px 0;
    margin-bottom: 40px;
    min-height: 400px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(226,232,240,0.8);
    transition: height 0.3s ease;
}

/* 搜索激活状态下的固定高度样式 */
.hero-section.search-active {
    height: var(--hero-fixed-height) !important;
    min-height: var(--hero-fixed-height) !important;
    max-height: var(--hero-fixed-height) !important;
    overflow: hidden !important;
    transition: none !important;
    animation: none !important;
    transform: none !important;
    padding: 0 !important;
    margin-bottom: 40px !important;
    flex: none !important;
    box-sizing: border-box !important;
}

/* Overview search-active样式已移至overview.css */

/* 搜索结果样式优化 */
.search-results-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.search-results-overlay.show {
    opacity: 1;
    visibility: visible;
}

.search-results-container {
    position: absolute;
    top: var(--search-top, 50%);
    left: 50%;
    transform: translateX(-50%);
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    max-width: 90%;
    width: 600px;
    max-height: 80vh;
    overflow: hidden;
}

.search-results-container.positioned {
    transform: translateX(-50%) translateY(0);
}

.search-results-header {
    background: #f8f9fa;
    padding: 15px 20px;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.search-results-count {
    font-size: 14px;
    color: #666;
    font-weight: 500;
}

.close-search-btn {
    background: none;
    border: none;
    font-size: 18px;
    color: #666;
    cursor: pointer;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

.close-search-btn:hover {
    background: #e9ecef;
}

.search-results-list {
    max-height: 400px;
    overflow-y: auto;
}



.search-result-title {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 5px;
}

.search-result-description {
    font-size: 14px;
    color: #666;
    line-height: 1.4;
}

.search-no-results {
    text-align: center;
    padding: 40px 20px;
    color: #999;
}

.search-no-results i {
    font-size: 48px;
    margin-bottom: 15px;
    opacity: 0.5;
}

/* 关键词高亮 */
mark {
    background: #fff3cd;
    padding: 1px 3px;
    border-radius: 3px;
    font-weight: 500;
}

.hero-animation-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.particles-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 25% 25%, rgba(102,126,234,0.03) 1px, transparent 1px),
                radial-gradient(circle at 75% 75%, rgba(118,75,162,0.02) 1px, transparent 1px),
                radial-gradient(circle at 45% 60%, rgba(168,85,247,0.015) 1px, transparent 1px);
    background-size: 150px 150px, 120px 120px, 180px 180px;
    animation: gentleFloat 30s linear infinite;
}

.hero-section .container {
    position: absolute;
    z-index: 10;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    pointer-events: none;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 50%, #667eea 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 10;
    min-height: 1.2em;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.8rem;
    text-align: center;
    margin-bottom: 40px;
    color: #64748b;
    font-weight: 400;
    position: relative;
    z-index: 10;
    min-height: 1.2em;
    line-height: 1.2;
}

/* 打字机效果 */
.typewriter-cursor {
    display: inline-block;
    width: 2px;
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 50%, #667eea 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: blink 1s infinite;
    font-weight: 300;
    margin-left: 2px;
    vertical-align: baseline;
}

.hero-subtitle .typewriter-cursor {
    color: #64748b;
    background: #64748b;
    -webkit-text-fill-color: initial;
    width: 2px;
}

/* Molstar 3D分子结构查看器 */
.molstar-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.4;
    z-index: 1;
    pointer-events: none;
}

#molstar-viewer {
    width: 100%;
    height: 100%;
    position: relative;
}

/* 适配体信息卡片 */
.aptamer-info-card {
    position: absolute;
    background: rgba(255,255,255,0.95);
    border-radius: 12px;
    padding: 12px 16px;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(226,232,240,0.6);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    font-size: 0.85rem;
    z-index: 5;
    transition: all 0.3s ease;
    pointer-events: auto;
    max-width: 280px;
}

.aptamer-info-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.aptamer-basic-info {
    bottom: 20px;
    left: 5px;
}

.aptamer-name {
    font-weight: 600;
    color: #667eea;
    margin-bottom: 6px;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    transition: color 0.3s ease;
}

.aptamer-name:hover {
    color: #5a67d8;
    text-decoration: underline;
}

.aptamer-target {
    color: #4a5568;
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.aptamer-year {
    color: #718096;
    font-size: 0.8rem;
}

.aptamer-description-info {
    top: 7px;
    right: 2px;
    max-width: 420px;
    min-width: 300px;
    width: auto;
    height: 120px;
    max-height: 150px;
    z-index: 5;
    overflow: hidden;
    border-radius: 0 0 0 12px;
    border-top: none;
    border-right: none;
    display: flex;
    flex-direction: column;
    padding: 16px 20px;
}

.description-title {
    font-weight: 600;
    color: #667eea;
    margin-bottom: 8px;
    font-size: 0.95rem;
    flex-shrink: 0;
}

.description-text {
    color: #4a5568;
    font-size: 0.99rem;
    line-height: 1.4;
    text-align: justify;
    overflow-y: auto;
    flex: 1;
    padding-right: 5px;
    word-wrap: break-word;
    white-space: pre-line;
}

.aptamer-structure-info {
    bottom: 20px;
    right: 5px;
}

.structure-pdb-id {
    font-weight: 600;
    color: #667eea;
    margin-bottom: 6px;
    font-size: 1rem;
}

.structure-pdb-id a {
    color: #667eea;
    text-decoration: none;
}

.structure-pdb-id a:hover {
    text-decoration: underline;
}

.structure-resolution {
    color: #4a5568;
    font-size: 0.85rem;
    margin-bottom: 4px;
}

.structure-method {
    color: #718096;
    font-size: 0.8rem;
}

/* Overview样式已移至overview.css */

/* Carousel */
.carousel-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f9fa;
    position: relative;
}

.carousel {
    width: 100%;
    height: 500px;
    position: relative;
    overflow: hidden;
    border-radius: 0 20px 20px 0;
}

.carousel-slides {
    display: flex;
    transition: transform 0.5s ease;
    height: 100%;
}

.carousel-slide {
    min-width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.carousel-slide:hover img {
    transform: scale(1.05);
}

.slide-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: white;
    padding: 30px;
    text-align: center;
}

.slide-overlay h3 {
    font-size: 2rem;
    margin-bottom: 10px;
    font-weight: bold;
}

.slide-overlay p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.carousel-nav {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
}

.carousel-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: background 0.3s;
}

.carousel-dot.active {
    background: white;
}

.carousel-prev, .carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.9);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    color: #333;
    transition: background 0.3s;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.carousel-prev:hover, .carousel-next:hover {
    background: white;
}

.carousel-prev {
    left: 15px;
}

.carousel-next {
    right: 15px;
}

/* Search Section */
.homepage-search-section {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    padding: 80px 0;
    margin: 60px 0;
    position: relative;
    overflow: hidden;
}

.homepage-search-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
}

.homepage-search-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.homepage-search-title {
    color: white;
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.homepage-search-subtitle {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.homepage-search-box {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
    background: white;
    border-radius: 50px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    transition: transform 0.3s ease;
}

.homepage-search-box:hover {
    transform: translateY(-2px);
}

.homepage-search-input {
    flex: 1;
    border: none;
    padding: 20px 30px;
    font-size: 1.2rem;
    outline: none;
    background: transparent;
}

.homepage-search-input::placeholder {
    color: #999;
}

.homepage-search-button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    padding: 20px 40px;
    color: white;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

.homepage-search-button:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
}

.homepage-search-categories {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.homepage-search-category {
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    transition: background 0.3s;
    backdrop-filter: blur(10px);
}

.homepage-search-category:hover {
    background: rgba(255,255,255,0.3);
    color: white;
    text-decoration: none;
}

/* Statistics Section */
.stats-section {
    background: #f8f9fa;
    padding: 80px 0;
}

.stats-container {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    max-width: 1400px;
    margin: 0 auto;
}

.stat-item {
    text-align: center;
    margin: 20px;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: bold;
    color: #667eea;
    display: block;
}

.stat-label {
    font-size: 1.3rem;
    color: #666;
    margin-top: 15px;
}

/* Resources Section */
.resources-section {
    padding: 80px 0;
    max-width: 1400px;
    margin: 0 auto;
}

.resources-title {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 60px;
    color: #333;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    padding: 0 20px;
}

.resource-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.resource-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.resource-icon {
    width: 70px;
    height: 70px;
    margin-bottom: 25px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    transition: transform 0.3s ease;
}

.resource-icon:hover {
    transform: scale(1.1);
}

.resource-title {
    font-size: 1.6rem;
    font-weight: bold;
    margin-bottom: 20px;
    color: #333;
}

.resource-description {
    color: #666;
    line-height: 1.8;
    font-size: 1.1rem;
}

/* Citation Section */
.cite-section {
    background: white;
    border: 2px solid #f8f9fa;
    border-radius: 20px;
    padding: 40px;
    margin: 60px auto;
    max-width: 1400px;
}

.cite-title {
    color: #444;
    font-size: 1.6rem;
    margin-bottom: 25px;
    font-weight: bold;
}

.related-databases {
    display: flex;
    gap: 30px;
    align-items: center;
    margin-top: 30px;
}

.db-link img {
    width: 120px;
    height: auto;
}

.feedback-section {
    margin-top: 50px;
}

.button {
    display: inline-block;
    padding: 12px 40px;
    width: 150px;
    height: 50px;
    background-color: #996699;
    color: #fff;
    border: 1px solid #fff;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.3s, color 0.3s;
    text-align: center;
    line-height: 26px;
    margin-right: 15px;
    font-size: 1.1rem;
}

.button:hover {
    background-color: #774477;
    color: white;
    text-decoration: none;
}

/* Utility Classes */
.keyword-highlight {
    background-color: #ffeaa7;
    font-weight: bold;
    padding: 0 2px;
}

/* Molstar特定样式 */
#molstar-viewer .msp-layout-top,
#molstar-viewer .msp-layout-left,
#molstar-viewer .msp-layout-controls,
#molstar-viewer .msp-control-group,
#molstar-viewer .msp-layout-expanded-viewport-controls,
#molstar-viewer .msp-controls,
#molstar-viewer .msp-sequence-panel,
#molstar-viewer .msp-log-panel,
#molstar-viewer .msp-left-panel,
#molstar-viewer .msp-viewport-controls,
#molstar-viewer .pdbe-molstar-controls,
#molstar-viewer .pdbe-molstar-top-panel,
#molstar-viewer .pdbe-molstar-sequence-panel {
    display: none !important;
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
}

#molstar-viewer .msp-layout-standard,
#molstar-viewer .msp-layout-viewport,
#molstar-viewer .msp-canvas {
    width: 100% !important;
    height: 100% !important;
    position: relative !important;
}

#molstar-viewer canvas {
    width: 100% !important;
    height: 100% !important;
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
}

/* 动画关键帧 */
@keyframes gentleFloat {
    0% { transform: translateY(0) translateX(0); }
    25% { transform: translateY(-10px) translateX(5px); }
    50% { transform: translateY(-5px) translateX(-3px); }
    75% { transform: translateY(-15px) translateX(8px); }
    100% { transform: translateY(0) translateX(0); }
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

@keyframes molstarSpin {
    0% { transform: rotateY(0deg); }
    100% { transform: rotateY(360deg); }
}

/* 响应式设计 */
@media (max-width: 1200px) {
    /* Overview响应式样式已移至overview.css */
    
    .carousel {
        height: 400px;
        border-radius: 0 0 20px 20px;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .homepage-search-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .stats-container {
        flex-direction: column;
        align-items: center;
    }
    
    .related-databases {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .homepage-search-box {
        flex-direction: column;
        border-radius: 20px;
    }
    
    .homepage-search-input {
        border-radius: 20px 20px 0 0;
    }
    
    .homepage-search-button {
        border-radius: 0 0 20px 20px;
    }
    
    .hero-section {
        min-height: 400px;
        text-align: center;
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
        margin-bottom: 15px;
    }
    
    .hero-subtitle {
        font-size: 1.4rem;
        line-height: 1.4;
        padding: 0 20px;
    }
    
    .molstar-container {
        opacity: 0.25;
    }
    
    .aptamer-info-card {
        font-size: 0.75rem;
        padding: 8px 12px;
        max-width: 200px;
    }
    
    .particles-background {
        opacity: 0.3;
        background-size: 80px 80px, 60px 60px, 100px 100px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-section {
        padding: 40px 0;
        min-height: 350px;
    }
}