:root {
    --primary: #4361ee;
    --secondary: #3f37c9;
    --accent: #4cc9f0;
    --light: #f8f9fa;
    --dark: #212529;
    --success: #4bb543;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --card-shadow: 0 10px 20px rgba(0,0,0,0.1);
    --hover-shadow: 0 15px 30px rgba(0,0,0,0.15);
    --ice-primary: #4cc9f0;
    --ice-secondary: #4895ef;
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.18);
}

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

body {
    background: linear-gradient(135deg, #f0f9ff 0%, #e1f5fe 100%);
    color: var(--dark);
    line-height: 1.6;
    min-height: 100vh;
    padding-bottom: 40px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: linear-gradient(135deg, var(--ice-primary), var(--ice-secondary));
    color: white;
    padding: 40px 0;
    text-align: center;
    border-radius: 0 0 20px 20px;
    margin-bottom: 40px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,186.7C384,213,480,235,576,213.3C672,192,768,128,864,128C960,128,1056,192,1152,192C1248,192,1344,128,1392,96L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: center bottom;
}

.header-content {
    position: relative;
    z-index: 1;
}

h1 {
    font-size: 2.8rem;
    margin-bottom: 12px;
    font-weight: 700;
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    font-weight: 300;
    max-width: 600px;
    margin: 0 auto;
}

.brand-highlight {
    color: #ff9e00;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* 增强版搜索栏样式 */
.enhanced-search-section {
    background: linear-gradient(135deg, rgba(76, 201, 240, 0.1), rgba(72, 149, 239, 0.1));
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 2px solid var(--ice-primary);
    padding: 20px 30px;
    border-radius: 20px;
    box-shadow: 0 12px 40px rgba(76, 201, 240, 0.25),
                0 0 0 1px rgba(255, 255, 255, 0.8) inset;
    margin-bottom: 40px;
    transition: all 0.4s ease;
    position: sticky;
    top: 20px;
    z-index: 100;
}

.enhanced-search-section.sticky {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    border-radius: 0;
    margin-bottom: 0;
    box-shadow: 0 8px 25px rgba(76, 201, 240, 0.3);
    z-index: 1000;
    max-width: 100%;
    margin: 0 auto;
    padding: 15px 20px;
    border-left: none;
    border-right: none;
    border-top: none;
}

.enhanced-search-section:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(76, 201, 240, 0.35),
                0 0 0 1px rgba(255, 255, 255, 0.9) inset;
}

.enhanced-search-form {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    width: 100%;
}

.search-left {
    flex-shrink: 0;
}

.enhanced-search-center {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 20px;
    justify-content: center;
}

.search-right {
    flex-shrink: 0;
}

.exclusive-text {
    color: var(--ice-primary);
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    padding: 8px 12px;
    background: rgba(76, 201, 240, 0.1);
    border-radius: 20px;
    border: 1px solid rgba(76, 201, 240, 0.2);
}

.enhanced-search-input-container {
    flex: 1;
    position: relative;
    max-width: 600px;
}

.enhanced-search-input {
    width: 100%;
    padding: 16px 25px 16px 55px;
    border: 3px solid rgba(76, 201, 240, 0.3);
    border-radius: 60px;
    font-size: 16px;
    transition: all 0.3s;
    background: rgba(255, 255, 255, 0.9);
    box-sizing: border-box;
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    font-weight: 500;
    color: var(--dark);
}

.enhanced-search-input:focus {
    border-color: var(--ice-primary);
    outline: none;
    box-shadow: 0 0 0 6px rgba(76, 201, 240, 0.2),
                0 8px 25px rgba(76, 201, 240, 0.25);
    background: rgba(255, 255, 255, 0.95);
    transform: scale(1.02);
}

.enhanced-search-icon {
    position: absolute;
    left: 25px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--ice-primary);
    font-size: 1.2rem;
    pointer-events: none;
    transition: all 0.3s;
}

.enhanced-search-input:focus + .enhanced-search-icon {
    color: var(--ice-secondary);
    transform: translateY(-50%) scale(1.1);
}

.enhanced-search-options {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-shrink: 0;
}

.enhanced-select-container {
    position: relative;
    min-width: 140px;
}

.enhanced-search-select {
    width: 100%;
    padding: 14px 40px 14px 20px;
    border: 2px solid rgba(76, 201, 240, 0.3);
    border-radius: 50px;
    font-size: 14px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(5px);
    appearance: none;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
    box-shadow: 0 3px 10px rgba(0,0,0,0.08);
}

.enhanced-search-select:focus {
    border-color: var(--ice-primary);
    outline: none;
    box-shadow: 0 0 0 4px rgba(76, 201, 240, 0.2);
    background: rgba(255, 255, 255, 0.95);
}

.enhanced-select-arrow {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--ice-primary);
    pointer-events: none;
    font-size: 0.9rem;
}

.enhanced-search-btn {
    padding: 14px 30px;
    background: linear-gradient(135deg, var(--ice-primary), var(--ice-secondary));
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 6px 20px rgba(76, 201, 240, 0.4);
    flex-shrink: 0;
    text-decoration: none;
}

.enhanced-search-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 30px rgba(76, 201, 240, 0.5);
}

.btn-home {
    background: linear-gradient(135deg, #ff9e00, #ff7b00);
    box-shadow: 0 4px 10px rgba(255, 158, 0, 0.3);
    padding: 12px 20px;
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
}

.btn-home:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(255, 158, 0, 0.4);
}

.sticky-spacer {
    display: none;
    height: 80px;
}

.sticky-spacer.active {
    display: block;
}

.results-section {
    margin-bottom: 50px;
}

.section-title {
    font-size: 1.8rem;
    margin-bottom: 25px;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 12px;
}

.section-title i {
    color: var(--ice-primary);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.popular-resources {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 30px;
}

.popular-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    background: white;
    border-radius: 50px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: all 0.2s;
    text-decoration: none;
    color: var(--dark);
    border: 1px solid var(--light-gray);
    max-width: 100%;
    flex: 0 1 auto;
}

.popular-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
    color: var(--ice-primary);
}

.popular-name {
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.love-count {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    color: var(--gray);
    background: rgba(220, 53, 69, 0.1);
    padding: 2px 8px;
    border-radius: 20px;
    flex-shrink: 0;
}

.love-count i {
    color: #dc3545;
}

.recent-resources {
    background: white;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    padding: 25px;
    margin-bottom: 40px;
    transition: all 0.3s;
}

.recent-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    transition: all 0.3s;
}

.recent-grid.collapsed {
    display: none;
}

.recent-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: var(--light);
    border-radius: 10px;
    transition: all 0.2s;
    border: 1px solid var(--light-gray);
    font-size: 0.95rem;
    min-height: 60px;
}

.recent-item:hover {
    background: white;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.recent-name {
    font-weight: 500;
    color: var(--dark);
    text-decoration: none;
    white-space: normal;
    overflow: visible;
    text-overflow: unset;
    flex: 1;
    min-width: 0;
    word-break: break-word;
    hyphens: auto;
    line-height: 1.4;
    padding-right: 10px;
    position: relative;
}

.recent-name:hover::after {
    content: attr(data-fullname);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    white-space: nowrap;
    z-index: 1000;
    margin-bottom: 5px;
}

.recent-name:hover {
    color: var(--ice-primary);
}

.recent-time {
    font-size: 0.8rem;
    color: var(--gray);
    margin-left: 10px;
    flex-shrink: 0;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

.category-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    height: 160px;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
    color: inherit;
}

.category-header {
    background: linear-gradient(135deg, var(--ice-primary), var(--ice-secondary));
    color: white;
    padding: 15px;
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 60px;
}

.category-header i {
    font-size: 1.2rem;
    opacity: 0.8;
}

.category-content {
    padding: 15px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.category-stats {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
}

.category-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.category-stat-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--ice-primary);
}

.category-stat-label {
    font-size: 0.7rem;
    color: var(--gray);
}

.resource-item {
    padding: 12px 10px;
    border-bottom: 1px solid var(--light-gray);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.2s;
    border-radius: 8px;
    min-height: 70px;
}

.resource-item:hover {
    background-color: rgba(76, 201, 240, 0.05);
}

.resource-item:last-child {
    border-bottom: none;
}

.resource-name {
    font-weight: 500;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    flex: 1;
    min-width: 0;
}

.resource-name i {
    color: var(--ice-primary);
    font-size: 0.85rem;
    flex-shrink: 0;
}

.resource-name-text {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    position: relative;
}

.resource-name-text:hover::after {
    content: attr(data-fullname);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    white-space: nowrap;
    z-index: 1000;
    margin-bottom: 5px;
}

.resource-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.resource-link {
    color: var(--ice-primary);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 50px;
    transition: all 0.2s;
    font-size: 0.85rem;
    font-weight: 500;
    background: rgba(76, 201, 240, 0.1);
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.resource-link:hover {
    background: rgba(76, 201, 240, 0.2);
    transform: translateY(-2px);
}

.download-quick {
    color: #28a745;
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 50px;
    transition: all 0.2s;
    font-size: 0.85rem;
    font-weight: 500;
    background: rgba(40, 167, 69, 0.1);
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
    margin-left: 5px;
}

.download-quick:hover {
    background: rgba(40, 167, 69, 0.2);
    transform: translateY(-2px);
}

.resource-love {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    color: var(--gray);
    background: rgba(220, 53, 69, 0.1);
    padding: 4px 8px;
    border-radius: 20px;
    flex-shrink: 0;
}

.resource-love i {
    color: #dc3545;
}

.resource-time {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    color: var(--gray);
    background: rgba(108, 117, 125, 0.1);
    padding: 4px 8px;
    border-radius: 20px;
    flex-shrink: 0;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.page-btn {
    padding: 8px 12px;
    background: white;
    border: 1px solid var(--light-gray);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
    text-decoration: none;
    color: var(--dark);
}

.page-btn:hover {
    background: var(--light);
    border-color: var(--ice-primary);
}

.page-btn.active {
    background: var(--ice-primary);
    color: white;
    border-color: var(--ice-primary);
}

.page-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-btn.disabled:hover {
    background: white;
    border-color: var(--light-gray);
}

.view-all-section {
    background: white;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    padding: 25px;
    margin-bottom: 40px;
}

.view-all-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--light-gray);
}

.view-all-title {
    font-size: 1.5rem;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
}

.compact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
}

.compact-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 12px 15px;
    background: var(--light);
    border-radius: 10px;
    transition: all 0.2s;
    border: 1px solid var(--light-gray);
    min-height: 70px;
}

.compact-item:hover {
    background: white;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.compact-name {
    font-weight: 500;
    color: var(--dark);
    font-size: 0.95rem;
    white-space: normal;
    overflow: visible;
    text-overflow: unset;
    flex: 1;
    min-width: 0;
    word-break: break-word;
    hyphens: auto;
    line-height: 1.4;
    padding-right: 10px;
    position: relative;
}

.compact-name:hover::after {
    content: attr(data-fullname);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    white-space: nowrap;
    z-index: 1000;
    margin-bottom: 5px;
}

.compact-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.search-results {
    background: white;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    padding: 25px;
    margin-bottom: 40px;
    transition: transform 0.3s;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.search-results:hover {
    transform: translateY(-5px);
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 15px 20px;
    border-bottom: 1px solid var(--light-gray);
    transition: background-color 0.2s;
    border-radius: 10px;
    gap: 15px;
    min-height: 70px;
}

.result-item:hover {
    background-color: rgba(76, 201, 240, 0.05);
}

.result-item:last-child {
    border-bottom: none;
}

.result-name {
    font-weight: 500;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0;
}

.result-name i {
    color: var(--ice-primary);
    font-size: 0.9rem;
    flex-shrink: 0;
}

.result-name-text {
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
    position: relative;
    line-height: 1.4;
    word-wrap: break-word;
}

.result-name-text:hover::after {
    content: attr(data-fullname);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    white-space: nowrap;
    z-index: 1000;
    margin-bottom: 5px;
}

.result-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.no-results {
    text-align: center;
    padding: 40px;
    color: var(--gray);
    font-style: italic;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.no-results i {
    font-size: 3rem;
    color: var(--light-gray);
}

/* 友情链接区域样式 */
.friend-links-section {
    background: white;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    padding: 20px;
    margin-bottom: 40px;
}

.friend-links-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--light-gray);
}

.friend-links-title i {
    color: var(--ice-primary);
}

.friend-links-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.friend-link {
    display: inline-block;
    padding: 6px 12px;
    background: var(--light);
    color: var(--dark);
    text-decoration: none;
    border-radius: 20px;
    font-size: 0.85rem;
    transition: all 0.2s;
    border: 1px solid var(--light-gray);
}

.friend-link:hover {
    background: var(--ice-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(76, 201, 240, 0.3);
    border-color: var(--ice-primary);
}

footer {
    text-align: center;
    margin-top: 60px;
    padding: 30px;
    color: var(--gray);
    border-top: 1px solid var(--light-gray);
}

.database-stats {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 15px;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ice-primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray);
}

/* 两列布局样式 */
.two-column-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.column-title {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--light-gray);
}

/* SEO内容区域样式 */
.seo-content-section {
    margin-bottom: 40px;
}

.seo-content-box {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.seo-content-box h2 {
    color: var(--dark);
    font-size: 1.8rem;
    margin-bottom: 25px;
    text-align: center;
    border-bottom: 2px solid var(--ice-primary);
    padding-bottom: 15px;
}

.seo-keywords-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.keyword-category {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 20px;
    border-radius: 12px;
    border-left: 4px solid var(--ice-primary);
}

.keyword-category h3 {
    color: var(--dark);
    font-size: 1.1rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.keyword-category h3 i {
    color: var(--ice-primary);
}

.keyword-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.keyword-tag {
    background: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--dark);
    border: 1px solid var(--light-gray);
    transition: all 0.3s;
}

.keyword-tag:hover {
    background: var(--ice-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(76, 201, 240, 0.3);
}

.seo-description {
    line-height: 1.8;
    color: var(--dark);
}

.seo-description p {
    margin-bottom: 15px;
    text-align: justify;
}

.seo-description strong {
    color: var(--ice-primary);
    font-weight: 600;
}

.highlight {
    background-color: rgba(76, 201, 240, 0.2);
    padding: 2px 4px;
    border-radius: 4px;
}

/* 浮动搜索按钮 */
.floating-search-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--ice-primary), var(--ice-secondary));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 20px rgba(76, 201, 240, 0.4);
    cursor: pointer;
    z-index: 1000;
    transition: all 0.3s;
    border: none;
    font-size: 1.5rem;
}

.floating-search-btn:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 10px 25px rgba(76, 201, 240, 0.5);
}

.floating-search-btn:active {
    transform: translateY(0) scale(1);
}

/* 冰棒品牌元素 */
.ice-cream-icon {
    display: inline-block;
    margin-right: 10px;
    color: #ff9e00;
}

.brand-footer {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--ice-primary);
    margin-bottom: 10px;
}

/* 智能搜索提示样式 */
.smart-search-info {
    background: rgba(76, 201, 240, 0.1);
    border: 1px solid rgba(76, 201, 240, 0.3);
    border-radius: 10px;
    padding: 12px 15px;
    margin: 15px 0;
    font-size: 0.9rem;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
}

.smart-search-info i {
    color: var(--ice-primary);
    font-size: 1.1rem;
}

.btn-toggle {
    background: transparent;
    border: 1px solid var(--ice-primary);
    color: var(--ice-primary);
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.85rem;
}

.btn-toggle:hover {
    background: rgba(76, 201, 240, 0.1);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--ice-primary);
    color: var(--ice-primary);
    box-shadow: none;
    padding: 12px 20px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
}

.btn-outline:hover {
    background: rgba(76, 201, 240, 0.1);
}

/* 响应式调整 */
@media (max-width: 1100px) {
    .category-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    
    .compact-grid {
        grid-template-columns: 1fr;
    }
    
    .recent-grid {
        grid-template-columns: 1fr;
    }
    
    .two-column-layout {
        grid-template-columns: 1fr;
    }
    
    .seo-keywords-grid {
        grid-template-columns: 1fr;
    }
}

/* 移动端优化 */
@media (max-width: 768px) {
    .enhanced-search-section {
        position: static !important;
        margin: 0 15px 30px 15px;
        padding: 20px;
    }
    
    .enhanced-search-section.sticky {
        position: static !important;
        border-radius: 20px !important;
        margin: 0 15px 30px 15px !important;
        padding: 20px !important;
        box-shadow: 0 12px 40px rgba(76, 201, 240, 0.25) !important;
    }
    
    .enhanced-search-form {
        flex-direction: column;
        gap: 15px;
    }
    
    .search-left, .search-right {
        order: 2;
        width: 100%;
        display: flex;
        justify-content: center;
    }
    
    .enhanced-search-center {
        order: 1;
        width: 100%;
        flex-direction: column;
        gap: 15px;
    }
    
    .enhanced-search-input-container {
        max-width: 100%;
        width: 100%;
    }
    
    .enhanced-search-input {
        font-size: 16px;
        padding: 18px 20px 18px 55px;
        width: 100%;
    }
    
    .enhanced-search-options {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .enhanced-select-container {
        display: block;
        min-width: 150px;
    }
    
    .enhanced-search-options .enhanced-search-btn {
        width: auto;
        min-width: 140px;
        justify-content: center;
        padding: 16px 25px;
        font-size: 16px;
    }
    
    h1 {
        font-size: 2.2rem;
    }
    
    .database-stats {
        flex-direction: column;
        gap: 15px;
    }
    
    .popular-resources {
        gap: 10px;
    }
    
    .popular-item {
        flex: 1 1 calc(50% - 10px);
        min-width: 0;
        max-width: calc(50% - 10px);
    }
    
    .popular-name {
        max-width: none;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .view-all-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .resource-meta {
        flex-direction: column;
        gap: 5px;
        align-items: flex-end;
    }
    
    .result-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .result-meta {
        width: 100%;
        justify-content: space-between;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .category-grid {
        grid-template-columns: 1fr;
    }
    
    .floating-search-btn {
        display: none;
    }
    
    .compact-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        min-height: auto;
    }
    
    .compact-meta {
        width: 100%;
        justify-content: space-between;
    }
    
    .friend-links-grid {
        justify-content: center;
    }
    
    .seo-content-box {
        padding: 20px;
    }
    
    .seo-content-box h2 {
        font-size: 1.5rem;
    }
    
    /* 移动端搜索结果优化 */
    .search-results {
        margin: 15px;
        padding: 20px;
        border-radius: 16px;
    }
    
    .result-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding: 15px;
        min-height: auto;
    }
    
    .result-name {
        width: 100%;
        font-size: 1rem;
        line-height: 1.4;
    }
    
    .result-name-text {
        white-space: normal;
        overflow: visible;
        text-overflow: unset;
        word-break: break-word;
        hyphens: auto;
    }
    
    .result-meta {
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .resource-link, .download-quick {
        font-size: 0.9rem;
        padding: 8px 15px;
        white-space: nowrap;
    }
    
    .resource-love, .resource-time {
        font-size: 0.85rem;
        padding: 6px 12px;
    }
}

@media (max-width: 480px) {
    .enhanced-search-input {
        font-size: 16px;
        padding: 20px 20px 20px 55px;
    }
    
    .enhanced-search-options {
        flex-direction: column;
        width: 100%;
    }
    
    .enhanced-select-container {
        width: 100%;
    }
    
    .enhanced-search-select {
        width: 100%;
        text-align: center;
    }
    
    .enhanced-search-options .enhanced-search-btn {
        width: 100%;
        min-width: auto;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .popular-resources {
        justify-content: flex-start;
        gap: 8px;
    }
    
    .popular-item {
        flex: 1 1 calc(50% - 8px);
        max-width: calc(50% - 8px);
        padding: 6px 12px;
    }
    
    .popular-name {
        font-size: 0.85rem;
    }
    
    .result-meta {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    
    .resource-link, .download-quick {
        width: 100%;
        text-align: center;
        justify-content: center;
    }
}

/* 搜索框动画效果 */
@keyframes searchPulse {
    0% { box-shadow: 0 0 0 0 rgba(76, 201, 240, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(76, 201, 240, 0); }
    100% { box-shadow: 0 0 0 0 rgba(76, 201, 240, 0); }
}

.enhanced-search-section.pulse {
    animation: searchPulse 2s infinite;
}