:root {
    /* 配色变量 */
    --primary-color: #4a6cf7;
    --primary-light: #eef1ff;
    --secondary-color: #6c757d;
    --accent-color: #3bc171;
    --vip-color: #ffc107;
    --text-color: #333;
    --text-light: #666;
    --bg-color: #fff;
    --bg-light: #f8f9fa;
    --border-color: #eaeaea;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
    
    /* 尺寸变量 */
    --radius: 12px;
    --header-height: 80px;
    --max-width: 1400px;
}
:focus {
  outline: none;

}
/* 去除移动端点击元素时的蓝色背景 */
a, button, input, select, textarea, label, div, span {
  -webkit-tap-highlight-color: transparent;
  /* 兼容其他浏览器 */
  tap-highlight-color: transparent;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    padding-top: var(--header-height);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* 头部样式 */
header {
    height: var(--header-height);
    background-color: var(--bg-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    flex-shrink: 0;
}
.logo img {
    margin-right: 10px;
    height: 32px;
}
.logo i {
    margin-right: 10px;
}

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

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-menu a {
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-dropdown {
    display: none;
    position: relative;
}

.nav-dropbtn {
    padding: 8px 15px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    background: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.nav-dropdown-content {
    display: none;
    position: absolute;
    background-color: white;
    min-width: 160px;
    box-shadow: var(--shadow);
    border-radius: var(--radius);
    z-index: 1;
    padding: 10px 0;
    margin-top: 5px;
    right: 0;
}

.nav-option {
    padding: 10px 20px;
    cursor: pointer;
    transition: var(--transition);
}

.nav-option:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.header-search {
    display: none;
    max-width: 300px;
    position: relative;
    margin: 0 15px;
    flex: 1;
}

.header-search .search-input {
    width: 100%;
    padding: 10px 15px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    font-size: 1rem;
}

.header-search .search-btn {
    position: absolute;
    right: 5px;
    top: 5px;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: var(--radius);
    cursor: pointer;
}

.user-actions {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-shrink: 0;
}

.btn {
    padding: 10px 20px;
    border-radius: var(--radius);
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #3a5ad9;
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background-color: var(--primary-light);
}

/* 搜索区域样式 */
.search-section {
    background: linear-gradient(to right, #f1f5ff, #e8edff);
    padding: 60px 0;
    text-align: center;
    transition: all 0.4s ease;
}

.search-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.search-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--text-color);
}

.search-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.search-box {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 18px 25px;
    border-radius: var(--radius);
    border: none;
    font-size: 1.1rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    box-shadow: 0 5px 20px rgba(74, 108, 247, 0.2);
}

.search-btn {
    position: absolute;
    right: 5px;
    top: 5px;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 13px 25px;
    border-radius: var(--radius);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.search-btn:hover {
    background: #3a5ad9;
}

/* 筛选区域样式 */
.filters-section {
    padding: 30px 0;
    background-color: var(--bg-light);
    position: sticky;
    top: var(--header-height);
    z-index: 900;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.filters-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
}

.filter-title {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    margin-right: 10px;
    white-space: nowrap;
}

.filter-title i {
    margin-right: 8px;
    color: var(--primary-color);
}

.filter-dropdown {
    position: relative;
    display: inline-block;
}

.filter-dropbtn {
    padding: 10px 20px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    min-width: 120px;
    justify-content: space-between;
    white-space: nowrap;
}

.filter-dropbtn:hover {
    border-color: var(--primary-color);
}

.filter-dropdown-content {
    display: none;
    position: absolute;
    background-color: white;
    min-width: 160px;
    box-shadow: var(--shadow);
    border-radius: var(--radius);
    z-index: 1;
    padding: 10px 0;
    margin-top: 5px;
}

.filter-option {
    padding: 10px 20px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.filter-option span{
    padding: 10px 20px;
    border: 2px solid #ffffff;
    border-radius: 6px;
}
.filter-option:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.filter-option.active {
    background-color: var(--primary-color);
    color: white;
}

.filter-option.active:hover {
    background-color: #3a5ad9;
}

.show {
    display: block;
}

.active-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-left: auto;
}

.active-filter {
    background: var(--primary-light);
    color: var(--primary-color);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
}

.active-filter i {
    cursor: pointer;
    font-size: 0.8rem;
}

/* 内容区域样式 */
.content-section {
    padding: 40px 0;
}

.content-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.results-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.results-count {
    font-weight: 500;
}

.sort-options {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sort-dropdown {
    position: relative;
}

.sort-dropbtn {
    padding: 8px 15px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    background: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 120px;
    justify-content: space-between;
    white-space: nowrap;
}

.sort-dropdown-content {
    display: none;
    position: absolute;
    background-color: white;
    min-width: 160px;
    box-shadow: var(--shadow);
    border-radius: var(--radius);
    z-index: 1;
    padding: 10px 0;
    margin-top: 5px;
    right: 0;
}

.sort-option {
    padding: 10px 20px;
    cursor: pointer;
    transition: var(--transition);
}


.sort-dropdown-content {
    display: none;
    /* 可根据需求补充定位、背景、边框等样式，例如： */
    position: absolute;
    background-color: #fff;
    min-width: 120px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    z-index: 100; /* 确保下拉内容在最上层 */
}


.sort-dropdown-content.show{
    display: block;
}


.sort-dropdown{
    position: relative;
    display: inline-block; /* 让按钮和下拉内容横向排列 */
}

.sort-option{
    padding: 8px 12px;
    cursor: pointer;
}
.sort-option:hover {
    background-color: #f5f5f5;
}



.sort-option:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.gallery {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 25px;
}
.gallery-relevant {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}
.gallery-item {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    position: relative;
    transition: var(--transition);
    background-image: url(../img/bgpng001.jpg);
    display: flex;
    justify-content: center;
    align-items: center;
    transform: translateY(0);
    border: 1px solid #fff;
}
.gallery-item-img {
    height: 270px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: zoom-in;
}
.positionFixed {
    position: absolute;
    z-index: -1;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgb(0 41 255 / 10%);
}
.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.gallery-img {
    height: auto;
    width: auto;
    min-width: 100%;
    max-height: 100%;
    transition: transform .5s;
}

.gallery-item:hover .gallery-img {
    transform: scale(1.05);
}

.item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    padding: 20px;
    color: white;
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover .item-overlay {
    opacity: 1;
}

.item-title {
    font-weight: 600;
    margin-bottom: 5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.item-info {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 15px;
}

.item-actions {
    display: flex;
    gap: 10px;
}

.action-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    cursor: pointer;
    transition: var(--transition);
}

.action-btn:hover {
    background: var(--primary-color);
    transform: scale(1.1);
}

.load-more {
    text-align: center;
    margin-top: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.load-more-btn {
    padding: 12px 30px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.load-more-btn:hover {
    background: #3a5ad9;
    transform: translateY(-2px);
}

/* 快捷按钮 */
.quick-buttons {
    position: fixed;
    right: 30px;
    bottom: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 999;
}

.quick-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.quick-btn.vip {
    background: var(--vip-color);
}

.quick-btn.user {
    background: var(--accent-color);
}

.quick-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.quick-btn-tooltip {
    position: absolute;
    right: 60px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.quick-btn:hover .quick-btn-tooltip {
    opacity: 1;
    right: 65px;
}

/* 底部样式 */
footer {
    background: var(--bg-light);
    padding: 60px 0 30px;
    margin-top: 60px;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.footer-col h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary-color);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.copyright {
    text-align: center;
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-light);
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .gallery,.gallery-relevant {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 992px) {
    .gallery,.gallery-relevant {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-dropdown {
        display: block;
    }
    
    .header-search {
        max-width: 250px;
    }
}

@media (max-width: 768px) {
    .gallery,.gallery-relevant {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .filters-container {
        flex-direction: row;
        align-items: center;
        /*overflow-x: auto;*/
        /*padding-bottom: 10px;*/
        /*flex-wrap: nowrap;*/
        justify-content: flex-start;
    }
    
    .filters-container::-webkit-scrollbar {
        height: 5px;
    }
    
    .filters-container::-webkit-scrollbar-thumb {
        background: #ccc;
        border-radius: 10px;
    }
    
    .filter-title {
        margin-right: 5px;
        flex-shrink: 0;
    }
    
    .filter-dropdown {
        flex-shrink: 0;
    }
    
    .active-filters {
        flex-shrink: 0;
        margin-left: 15px;
    }
    
    .header-search {
        max-width: 200px;
    }
}

@media (max-width: 576px) {
    .gallery,.gallery-relevant {
        grid-template-columns: 1fr;
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
    
    .search-title {
        font-size: 2rem;
    }
    
    .results-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .quick-buttons {
        bottom: 20px;
        right: 20px;
    }
    
    .quick-btn {
        width: 45px;
        height: 45px;
    }
    
    .header-search {
        display: none !important;
    }
    
    .filters-container {
        gap: 10px;
    }
    
    .filter-dropbtn {
        padding: 8px 15px;
        min-width: 100px;
    }
}

/* 滚动时的样式 */
.header-scrolled {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.header-scrolled .header-search {
    display: block;
}

.header-scrolled .nav-menu {
    display: none;
}

.header-scrolled .nav-dropdown {
    display: block;
}

.search-section-hidden {
    opacity: 0;
    height: 0;
    padding: 0;
    overflow: hidden;
    pointer-events: none;
}
.no-results,.no-results-relevant{
    padding: 30px;
    position: relative;
    display: grid;
    gap: 18px;
    color: #4a6cf7;
    font-size: 20px;
    font-weight: bold;
    justify-content: center;
    text-align: center;
}
.no-results i ,.no-results-relevant i{
    font-size: 51px;
    width: 100px;
    height: 100px;
    background: rgba(79, 70, 229, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 25px;
}
.login-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;visibility:hidden;opacity:0;transition:opacity .3s ease,visibility .3s ease;z-index:9999;backdrop-filter:blur(4px)}
.login-overlay.active{visibility:visible;opacity:1}
 .login-overlay.active .login-modal{transform:translateY(0);opacity:1}
.login-overlay .login-modal{background:linear-gradient(135deg,#fff 0,#f8f9fc 100%);border-radius:20px;padding:40px;    width: 80%;max-width: 440px; min-width: 320px;box-shadow:0 20px 60px rgba(0,0,0,.2);transform:translateY(30px);opacity:0;transition:transform .4s cubic-bezier(.18,1.25,.4,1),opacity .4s ease;position:relative}
.login-overlay .close-button{position:absolute;top:20px;right:20px;width:32px;height:32px;cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:50%;background:#f1f3f9;color:#7b88a0;font-size:20px;transition:all .2s ease}
.login-overlay .close-button:hover{background:#e6ebf5;transform:rotate(90deg)}
.login-overlay h2{text-align:center;color:#1e2a3b;font-size:24px;font-weight:600;margin-bottom:30px}
.login-overlay .input-field{display:flex;flex-direction:column;margin-bottom:20px;position:relative}
.login-overlay label{font-size:14px;color:#4a5677;margin-bottom:8px;font-weight:500}
.login-overlay input{padding: 0 16px;height: 54px;border:1.5px solid #e1e6f0;border-radius:12px;font-size:16px;transition:all .2s ease;background:#fff;outline:0}
.login-overlay input:focus{border-color:#3d7eff;box-shadow:0 0 0 3px rgba(61,126,255,.15)}
.login-overlay input::placeholder{color:#aeb9d1}
.login-overlay .code-button{padding:9px 16px;border:none;border-radius:10px;background-color:#f2f6ff;color:#3d7eff;cursor:pointer;font-size:14px;font-weight:500;position:absolute;bottom:8px;right:8px;transition:all .2s ease}
.login-overlay .code-button:hover{background-color:#e8efff}
.login-overlay .code-button:active{transform:scale(.98)}
.login-overlay .verification-img{height:40px;border-radius:8px;cursor:pointer}
.login-overlay .submit-button{background:linear-gradient(135deg,#3d7eff 0,#2a5bd8 100%);color:#fff;padding:16px;border:none;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;width:100%;margin-top:10px;transition:all .2s ease;box-shadow:0 4px 12px rgba(61,126,255,.25)}
.login-overlay .submit-button:hover{background:linear-gradient(135deg,#2a5bd8 0,#1e4bb8 100%);box-shadow:0 6px 16px rgba(61,126,255,.35);transform:translateY(-2px)}
.login-overlay .submit-button:active{transform:translateY(0);box-shadow:0 2px 8px rgba(61,126,255,.2)}
.login-overlay .divider{height:1px;background:linear-gradient(to right,transparent 0,#e1e6f0 50%,transparent 100%);margin:25px 0}
.login-overlay .footer-text{text-align:center;font-size:13px;color:#7b88a0;margin-top:20px}
.login-overlay .footer-text a{color:#3d7eff;text-decoration:none;font-weight:500}



.prompt-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);display:flex;justify-content:center;align-items:center;z-index:100;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}
.prompt-overlay.active{opacity:1;visibility:visible}
.prompt-container{background:#fff;border-radius:12px;overflow:hidden;width:80%;max-width:400px;transform:translateY(30px);opacity:0;transition:transform .3s,opacity .3s}
.prompt-container.active{transform:translateY(0);opacity:1}
.prompt-content{padding:20px;text-align:center;color:#333}
.prompt-content .title{color:#333;font-size:18px;font-weight:700;margin-bottom:20px}
.prompt-actions{display:flex;justify-content:space-between;background:#f8f8f8;padding:10px 20px;border-top:1px solid #e5e5ea}
.prompt-button{flex:1;padding:10px;text-align:center;color:#347cf0;border:none;background:0 0;cursor:pointer}
.prompt-delete{color:#d44439;border-left:1px solid #e5e5ea}
/* VIP按钮样式 */
        .vip-button {
            position: fixed;
            left: 20px;
            bottom: 20px;
            z-index: 1000;
            animation: pulse 2s infinite;
        }
        
        .vip-button a {
            display: flex;
            align-items: center;
            text-decoration: none;
            background: linear-gradient(135deg, #ffd700, #ff9500);
            color: #ffffff;
            padding: 16px 24px;
            border-radius: 50px;
            font-weight: bold;
            font-size: 1.2rem;
            box-shadow: 0 6px 20px rgba(255, 149, 0, 0.4);
            transition: all 0.3s ease;
        }
        
        .vip-button a:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(255, 149, 0, 0.6);
        }
        
        .vip-button i {
            margin-right: 10px;
            font-size: 1.5rem;
        }
        
        /* 脉冲动画 */
        @keyframes pulse {
            0% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.1);
            }
            100% {
                transform: scale(1);
            }
        }