* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            background: linear-gradient(135deg, #f0f7ff 0%, #e8f0fe 100%);
            font-family: 'Segoe UI', 'Roboto', system-ui, sans-serif;
            padding: 20px 24px 50px;
            min-height: 100vh;
        }
        .header {
            text-align: center;
            margin-bottom: 30px;
        }
        .top-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto 20px;
            flex-wrap: wrap;
            gap: 15px;
        }
        .back-btn {
            background: #2c6e9e;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 40px;
            cursor: pointer;
            font-size: 0.9rem;
            text-decoration: none;
            display: inline-block;
        }
        .refresh-btn {
            background: #3a8cff;
            color: white;
            border: none;
            padding: 10px 24px;
            border-radius: 40px;
            cursor: pointer;
            font-size: 0.9rem;
            font-weight: bold;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .refresh-btn:hover {
            background: #2c6e9e;
        }
        h1 {
            font-size: 2rem;
            background: linear-gradient(135deg, #2c6e9e, #7bc5f9);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            margin-bottom: 10px;
        }
        .subtitle {
            color: #6c8db0;
            margin-bottom: 20px;
        }
        .photo-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
            max-width: 1400px;
            margin: 0 auto;
        }
        .photo-card {
            background: white;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .photo-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.15);
        }
        .photo-card img {
            width: 100%;
            height: auto;
            max-height: 300px;
            object-fit: contain;
            background: #f5f5f5;
            display: block;
        }
        .photo-info {
            padding: 14px 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .photo-date {
            font-size: 0.75rem;
            color: #8da3b9;
        }
        .like-area {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .like-btn {
            background: none;
            border: none;
            font-size: 1.3rem;
            cursor: pointer;
            transition: 0.1s;
            padding: 4px 8px;
            border-radius: 30px;
        }
        .like-btn.liked {
            color: #ff4444;
        }
        .like-btn:hover {
            transform: scale(1.1);
        }
        .like-count {
            font-size: 0.85rem;
            color: #ff6b6b;
            font-weight: 600;
            min-width: 30px;
            text-align: center;
        }
        .loading {
            text-align: center;
            padding: 60px;
            color: #8da3b9;
        }
        .empty {
            text-align: center;
            padding: 60px;
            color: #8da3b9;
            background: white;
            border-radius: 32px;
            max-width: 500px;
            margin: 0 auto;
        }
        footer {
            text-align: center;
            margin-top: 50px;
            font-size: 0.7rem;
            color: #8da3b9;
        }
        .lightbox {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.9);
            z-index: 1000;
            justify-content: center;
            align-items: center;
            cursor: pointer;
        }
        .lightbox img {
            max-width: 90%;
            max-height: 90%;
            object-fit: contain;
            border-radius: 8px;
        }
        .lightbox-close {
            position: absolute;
            top: 20px;
            right: 30px;
            color: white;
            font-size: 40px;
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .photo-grid {
                grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
                gap: 16px;
            }
        }