:root {
    --sk-glyph: #000;
    --sk-glyph-gray: #1d1d1f;
    --sk-glyph-gray-alpha: #000000e0;
    --sk-glyph-gray-secondary: #6e6e73;
    --sk-glyph-gray-secondary-alpha: #0000008f;
    --sk-glyph-gray-secondary-alt: #424245;
    --sk-glyph-gray-secondary-alt-alpha: #000000b8;
    --sk-glyph-gray-tertiary: #86868b;
    --sk-glyph-gray-tertiary-alpha: #0000007a;
    --sk-glyph-blue: #06c;
    --sk-glyph-orange: #b64400;
    --sk-glyph-green: #008009;
    --sk-glyph-red: #e30000;
    --sk-fill: #fff;
    --sk-fill-secondary: #fafafc;
    --sk-fill-tertiary: #f5f5f7;
    --sk-fill-gray: #1d1d1f;
    --sk-fill-gray-alpha: #000000e0;
    --sk-fill-gray-secondary: #86868b;
    --sk-fill-gray-secondary-alpha: #0000007a;
    --sk-fill-gray-tertiary: #d2d2d7;
    --sk-fill-gray-tertiary-alpha: #00000029;
    --sk-fill-gray-quaternary: #e8e8ed;
    --sk-fill-gray-quaternary-alpha: #00000014;
    --sk-fill-blue: #0071e3;
    --sk-fill-orange: #f56300;
    --sk-fill-orange-secondary: #fff9f4;
    --sk-fill-green: #03a10e;
    --sk-fill-green-secondary: #f5fff6;
    --sk-fill-red: #e30000;
    --sk-fill-red-secondary: #fff2f4;
    --sk-fill-yellow: #ffe045;
    --sk-fill-yellow-secondary: #fffef2;
    --sk-productred: #af1e2d;
    --sk-enviro-green: #00d959;
    --sk-enviro-neutral: #e8e8ed
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
    background-color: var(--sk-fill-tertiary);
    color: var(--sk-glyph-gray);
    line-height: 1.6;
    padding: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

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

header {
    font-size: clamp(2rem, 1.636rem + 1.82vw, 3rem);
    font-weight: 500;
    /*text-align: center;*/
    margin-bottom: 10px;
    padding: 5px;
    /*background: rgba(0, 0, 0, 0.3);*/
    border-radius: 15px;
    /*box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);*/
    backdrop-filter: blur(10px);
    position: relative;
    display: flex;
    align-items: center;
}

.logo{
    /*font-size: 3rem;
    font-weight: 500;*/
    margin-bottom: 10px;
    letter-spacing: 1px;
    color: var(--sk-glyph-gray);
    /*display: table-cell;*/
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.logo-img {
    margin-bottom: 10px;
    color: var(--sk-glyph-gray);
    /*display: table-cell;*/
    width: 50%;
}

h1 {
    font-size: 2.8rem;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
    margin-bottom: 5px;
    background: var(--sk-glyph-gray);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    grid-column-gap: 30px;
    grid-row-gap: 40px;
    margin-top: 10px;
}

.gallery-item {
    position: relative;
    /*border-radius: 12px;*/
    overflow: hidden;
    box-shadow: 0 3px 9px var(--sk-glyph-gray-tertiary);
    cursor: pointer;
    transition: all 0.4s ease;
    aspect-ratio: 4/3;
    -webkit-tap-highlight-color: transparent;
    outline: none;
    user-select: none;
}

.gallery-item:focus,
.gallery-item:active {
    outline: none !important;
    box-shadow: none !important;
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 3px 9px var(--sk-glyph-gray-tertiary);
}

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

.gallery-item:hover img {
    #transform: scale(1.1);
}

.gallery-item .caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: #f5f5f7;
    padding: 3px;
    /*transform: translateY(100%);*/
    transition: transform 0.3s ease;
    text-align: center;
    font-weight: 400;
    color: #000000;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
}

.gallery-item:hover .caption {
    transform: translateY(0);
}

footer {
    text-align: center;
    padding: 30px 0;
    color: var(--sk-glyph-gray-tertiary);
    font-size: 0.9rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    margin-top: 40px;
}

.long-description-indicator {
    position: absolute;
    top: 5px;
    right: 5px;
    color: var(--sk-fill-blue);
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Lightbox 样式 */
#lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 10000;
    justify-content: center;
    align-items: center;
}

/*.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    !*background: rgba(0, 0, 0, 0.95);*!
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}*/

.lightbox.active {
    opacity: 1;
    pointer-events: all;
}

.lightbox-content {
    position: relative;
    width: 80%;
    height: 85vh;
    max-width: 1400px;
    display: flex;
    /*background: #1a1a1a;*/
    background: #fafafc;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.7);
}

.lightbox-image-container {
    flex: 0 0 70%;
    height: 100%;
    /*background: #000;*/
    background: #fafafc;;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
}

.lightbox-image-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 8px;
    /*box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);*/
}

.lightbox-info {
    flex: 1;
    padding: 40px;
    overflow-y: auto;
    height: 100%;
    position: relative;
}

.lightbox-title {
    font-size: 2rem;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
    margin-top: 25px;
    margin-bottom: 25px;
    color: var(--sk-glyph-gray);
    padding-bottom: 15px;
    border-bottom: 2px solid #d2d2d7a3;
    line-height: 150%;
    white-space: pre;
}

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

.lightbox-description p {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
    color: black;
    margin-bottom: 20px;
    text-align: left;
    word-break: normal;
}

.lightbox-description h3 {
    color: #ff7e5f;
    margin: 25px 0 15px;
    font-size: 1.4rem;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
    text-align: left;
}

.lightbox-description ul {
    margin-left: 30px;
    margin-bottom: 20px;
}

.lightbox-description li {
    margin-bottom: 10px;
}

.close-btn {
    position: absolute;
    top: 25px;
    right: 30px;
    font-size: 1.5rem;
    color: var(--sk-glyph-gray-secondary);
    cursor: pointer;
    transition: transform 0.3s ease;
    background: #e8e8ed;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    -webkit-border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1001;
    -webkit-tap-highlight-color: transparent;
    outline: none;
    user-select: none;
}

.close-btn:focus,
.close-btn:active {
    outline: none !important;
    box-shadow: none !important;
}

.close-btn:hover {
    /*transform: rotate(90deg) scale(1.1);*/
    transform: scale(1.03);
    /*color: #ff7e5f;*/
    /*background: rgba(255, 126, 95, 0.2);*/
}

.nav-btn {
    display: none;
    /*display: flex;*/
    position: absolute;
    top: 50%;
    /*transform: translateY(-50%);*/
    font-size: 1.8rem;
    color: #000000a3;
    cursor: pointer;
    /*background: rgba(0, 0, 0, 0.5);*/
    background: #d2d2d7a3;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    -webkit-border-radius: 50%;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10;
    -webkit-tap-highlight-color: transparent; /* 移除点击高亮 */
    outline: none; /* 移除焦点轮廓 */
    user-select: none; /* 可选：防止文本选中 */
}

/* 针对不同状态进行重置 */
.nav-btn:focus,
.nav-btn:active {
    outline: none !important;
    box-shadow: none !important;
}

.nav-btn:hover {
    /*background: rgba(255, 126, 95, 0.8);*/
    /*transform: translateY(-50%) scale(1.1);*/
    transform: scale(1.1);
}

.prev-btn {
    left: 30px;
}

.next-btn {
    right: 30px;
}

footer {
    margin-top: 50px;
    text-align: center;
    padding: 20px;
    font-size: 1.1rem;
    opacity: 1;
}

/* 响应式设计 */
/*@media (max-width: 1800px) {
    .lightbox-content {
        flex-direction: column;
        height: 90vh;
    }

    .lightbox-image-container {
        flex: 0 0 50%;
        width: 100%;
    }

    .lightbox-info {
        flex: 1;
        padding: 25px;
    }
}*/

@media (max-width: 1100px) {
    .lightbox-content {
        flex-direction: column;
        height: 90vh;
    }

    .lightbox-image-container {
        flex: 0 0 50%;
        width: 100%;
    }

    .lightbox-info {
        flex: 1;
        padding: 25px;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

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

    .nav-btn {
        font-size: 2rem;
        width: 55px;
        height: 55px;
    }

    .close-btn {
        top: 15px;
        right: 20px;
        font-size: 2rem;
        width: 45px;
        height: 45px;
    }

    .lightbox-title {
        font-size: 1.8rem;
    }

    .lightbox-description {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    .gallery {
        grid-template-columns: 1fr;
    }

    .lightbox-content {
        width: 95%;
        height: 85vh;
    }

    .lightbox-image-container {
        padding: 15px;
    }
}

/* 滚动条美化 */
.lightbox-info::-webkit-scrollbar {
    width: 8px;
}

.lightbox-info::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

.lightbox-info::-webkit-scrollbar-thumb {
    background: #d2d2d7a3;
    border-radius: 4px;
}

.lightbox-info::-webkit-scrollbar-thumb:hover {
    background: #d2d2d7a3;
}

/* 离线状态指示 */
.offline-status {
    position: fixed;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    background: #e74c3c;
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    z-index: 10000;
    display: none;
}

.offline-status.show {
    display: block;
}