/* new_live.html */
.news-container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    margin-bottom: 40px;
    border: 1px solid #eaefed;
}

.news-header {
    background: linear-gradient(to right, #f8faf9, #f1f5f4);
    padding: 15px 30px;
    border-bottom: 1px solid #eaefed;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.news-header h2 {
    font-size: 1.8rem;
    color: #444544;
    display: flex;
    align-items: center;
    gap: 12px;
}

.date-display {
    font-size: 1.2rem;
    color: #5c6b7e;
    background: rgba(255, 255, 255, 0.7);
    padding: 8px 18px;
    border-radius: 15px;
    border: 1px solid #eaecef;
    box-shadow: 0 2px 5px rgba(0,0,0,0.03);
}

.ticker-container {
    height: 420px;
    overflow: hidden;
    position: relative;
    background: #fafbfc;
}

.ticker-wrapper {
    position: absolute;
    width: 100%;
    /* 25s 可调滚动速度 */
    animation: scroll 25s linear infinite;  
}

.ticker-wrapper.paused {
    animation-play-state: paused;
}

.ticker-item {
    padding: 24px 35px;
    border-bottom: 1px solid #edf0f3;
    display: flex;
    transition: all 0.25s ease;
    background: white;
    align-items: flex-start;
}

.ticker-item:hover {
    background: #f8fafd;
    box-shadow: 0 5px 15px rgba(0,0,0,0.03);
}

.news-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    flex-shrink: 0;
    background: #f9fdfa;
    color: #27AE60;
    font-size: 1.4rem;
}

.news-content {
    flex: 1;
}

.news-date {
    font-weight: 600;
    color: #636363;
    margin-bottom: 5px;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
}

.news-date::after {
    content: "";
    display: inline-block;
    width: 5px;
    height: 5px;
    background: #d0e0dc;
    border-radius: 50%;
    margin: 0 12px;
}

.news-title {
    font-size: 1.6rem;
    color: #444544;
    margin-bottom: 12px;
    font-weight: 600;
}

.news-desc {
    color: #444544;
    line-height: 1.7;
    max-width: 800px;
}

.news-list {
    padding: 20px 0;
    background: #fafcfc;
}

.news-item {
    padding: 24px 35px;
    margin: 10px 20px;
    border-radius: 8px;
    display: flex;
    transition: all 0.25s ease;
    background: white;
    align-items: flex-start;
    border: 1px solid #edf3f1;
    box-shadow: 0 3px 10px rgba(0,0,0,0.03);
}

.news-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    border-color: #d0e0dc;
}

.news-tag {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 12px;
    background: #f9fdfa;
    color: #569c87;
    border: 1px solid #e6fdf3;
}

.controls {
    display: flex;
    justify-content: center;
    padding: 25px;
    background: #f8f9fa;
    border-top: 1px solid #eaecef;
}



.stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 30px;
}

.stat-item {
    text-align: center;
    background: white;
    padding: 25px 40px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    border: 1px solid #eaecef;
    min-width: 220px;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: #4a6491;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1.1rem;
    color: #5c6b7e;
    font-weight: 500;
}

.instructions {
    text-align: center;
    color: #7a8ca5;
    margin-top: 40px;
    font-size: 1.1rem;
    padding: 15px;
    background: rgba(255,255,255,0.6);
    border-radius: 8px;
    max-width: 600px;
    margin: 40px auto 0;
    border: 1px solid #eaecef;
}

.news-categories {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 20px 0 30px;
    flex-wrap: wrap;
}
.category-btn {
    padding: 10px 25px;
    border-radius: 5px;
    background: white;
    border: 1px solid #d0d7e0;
    color: #5c6b7e;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}
.category-btn:hover, .category-btn.active {
    background: #27AE60;
    color: white;
    border-color: #27AE60;
}

@keyframes scroll {
    0% { transform: translateY(0); }
    100% { transform: translateY(-50%); }
}

@media (max-width: 900px) {
    .stats {
        flex-wrap: wrap;
    }
    
    .ticker-container {
        height: 380px;
    }
}

@media (max-width: 768px) {
    header h1 { font-size: 2.3rem; }
    .news-header { flex-direction: column; text-align: center; gap: 20px; }
    .ticker-item { padding: 20px; }
    .news-icon { margin-right: 15px; }
    .stat-item { padding: 20px 30px; min-width: auto; }
}

@media (max-width: 480px) {
    .ticker-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .news-icon {
        margin-bottom: 15px;
    }
    
    .controls {
        flex-direction: column;
        gap: 15px;
    }
    
    .control-btn {
        margin: 5px 0;
        justify-content: center;
    }
}


/* 服务策划 */        
/* 英雄区域 */
.hero {
    padding: 80px 0;
    text-align: center;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="%23f0f2f5"/><path d="M0 50 L100 50" stroke="%23d1d9e6" stroke-width="1"/><path d="M50 0 L50 100" stroke="%23d1d9e6" stroke-width="1"/></svg>');
    background-size: 40px 40px;
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 20px;
    color: #1a3a5f;
    line-height: 1.2;
}

.hero p {
    font-size: 1.4rem;
    max-width: 800px;
    margin: 0 auto 30px;
    color: #4a5568;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(90deg, #4caf50 0%, #2e7d32 100%);
    color: white;
    padding: 14px 32px;
    font-size: 18px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
    transition: all 0.3s ease;
    margin-top: 20px;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.4);
}

/* 挑战区域 */
.challenges {
    padding: 80px 0;
}

.service-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: #1a3a5f;
    position: relative;
}

.service-title:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #4caf50 0%, #2e7d32 100%);
    margin: 15px auto 0;
    border-radius: 2px;
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.challenge-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    border-top: 4px solid #2c5282;
    position: relative;
    overflow: hidden;
}

.challenge-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 20px rgba(0,0,0,0.08);
}

.challenge-card:before {
    content: '?';
    position: absolute;
    top: -20px;
    right: -20px;
    font-size: 120px;
    color: rgba(44, 82, 130, 0.05);
    font-weight: bold;
    line-height: 1;
}
    .challenge-card p {
    font-size: 1.5rem;
    
}
.challenge-card h3 {
    font-size: 1.6rem;
    margin-bottom: 15px;
    color: #2c5282;
}

/* 服务概述 */
.services-overview {
    padding: 80px 0;
    background: white;
}

.services-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    padding: 0 20px;
}

.services-content p {
    font-size: 1.6rem;
    margin-bottom: 30px;
    line-height: 1.8;
}
    

.highlight {
    background: linear-gradient(120deg, rgba(76, 175, 80, 0.15) 0%, rgba(76, 175, 80, 0) 100%);
    padding: 30px;
    border-radius: 12px;
    margin: 40px 0;
    border-left: 4px solid #4caf50;
}

.highlight h3 {
    color: #2e7d32;
    margin-bottom: 15px;
    font-size: 2.0rem;
}

/* 流程区域 */
.process {
    padding: 80px 0;
}

.process-steps {
    display: flex;
    flex-direction: column;
    gap: 50px;
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.process-steps:before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 30px;
    width: 4px;
    background: linear-gradient(to bottom, #4caf50, #2c5282);
    z-index: 1;
}

.step {
    display: flex;
    gap: 30px;
    position: relative;
    z-index: 2;
}

.step-number {
    min-width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #4caf50 0%, #2e7d32 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    font-weight: bold;
    box-shadow: 0 5px 15px rgba(76, 175, 80, 0.3);
    flex-shrink: 0;
}

.step-content {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    flex-grow: 1;
}
    .step-content p {
    font-size: 1.5rem;           
}
.step-content h3 {
    font-size: 1.8rem;
    color: #2c5282;
    margin-bottom: 15px;
}

.step-content ul {
    padding-left: 20px;
    margin-top: 15px;
}

.step-content li {
    margin-bottom: 10px;
}

.step-content li strong {
    color: #2e7d32;
}

/* 技术支持 */

.support-methods {
    padding: 80px 0;
    background: white;
}

.methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.method-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.method-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.method-icon {
    font-size: 48px;
    color: #2c5282;
    margin-bottom: 20px;
}

.method-card h3 {
    color: #2c5282;
    margin-bottom: 15px;
}
        

/* 服务承诺 */
/* 承诺区域 */
.commitments {
    padding: 80px 0;
    background: white;
}


.commitments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.commitment-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    text-align: center;
    transition: all 0.3s ease;
    border-top: 4px solid #2c5282;
    position: relative;
    overflow: hidden;
}

.commitment-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.commitment-icon {
    font-size: 48px;
    color: #2c5282;
    margin-bottom: 20px;
}

.commitment-card h3 {
    color: #2c5282;
    margin-bottom: 15px;
}
.commitment-card p {
    font-size: 1.5rem;
}

/* 保障措施 */
.guarantees {
    padding: 80px 0;
}

.guarantee-content {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.08);
    position: relative;
    overflow: hidden;
}

.guarantee-content:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
    background: linear-gradient(to bottom, #4caf50, #2c5282);
}

.guarantee-item {
    margin-bottom: 25px;
    padding-left: 20px;
    border-left: 3px solid #e2e8f0;
    position: relative;
}

.guarantee-item:before {
    content: '✓';
    position: absolute;
    left: -20px;
    top: 0;
    width: 30px;
    height: 30px;
    background: #4caf50;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.guarantee-item h3 {
    color: #2c5282;
    margin-bottom: 10px;
}
.guarantee-item p {
    font-size: 1.5rem;
}


/* 产品案例 */
.anli-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}     
      
.cases-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.case-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.case-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.case-card:hover .case-image img {
    transform: scale(1.08);
}

.case-content {
    padding: 25px;           
}

.case-content h3 {
    font-size: 1.8rem;
    margin-bottom: 12px;
    color: #2d3748;
}

.industry {
    display: inline-block;
    background: #ebfffe;
    color: #43aa5e;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.case-content p {
    color: #4a5568;
    margin-bottom: 25px;
    font-size: 1.5rem;
    flex-grow: 1;
}

/* 公司优势 */
/* .pro-content {
	
} */
.pro-content h3 {
	color: #2C2D3F;
	font-size: 18px;
	margin-bottom: 15px;
}
.pro-content h3 .inner {
	display: block;
	font-size: 15px;
	font-weight: 400;
	margin-top: 5px;
	color: #27AE60;
	-webkit-transition:all 0.4s ease;
	-moz-transition:all 0.4s ease;
	transition:all 0.4s ease;
}



/* 参考资料 */

.container1 {
    max-width: 1200px;  /* 总宽度 */
    margin: 0 auto;
}
.cases-container1 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.case-card1 {
    background: white;
    border-radius: 10px;   /* 圆角度 */
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.case-card1:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

/* 渐变彩线 - 使用伪元素实现 */       
.case-card1::before {
    content: '';
    display: block;
    height: 6px;
    width: 100%;
    background: linear-gradient(90deg, 
        #27AE60 0%, 
        #27AE60 70%, 
        #4299b9 85%, 
        #2e9bb9 95%,
        #27AE60 100%);
    position: absolute;
    top: 0;
    left: 0;
    transition: height 0.3s ease;
}

.case-card1:hover::before {
    height: 8px;
}


/* 优化产品分类 */
.container2 {
    max-width: 900px;  /* 总宽度 */
    margin: 0 auto;
}
.case-card2 {
    background: white;
    border-radius: 6px;  /* 圆角度 */
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    
}

.case-card2:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

/* 渐变彩线 - 使用伪元素实现 */       
.case-card2::before {
    content: '';
    display: block;
    height: 5px;
    width: 100%;
    background: linear-gradient(90deg, 
        #27AE60 0%, 
        #27AE60 50%,        
        #27AE60 100%);
    position: absolute;
    top: 0;
    left: 0;
    transition: height 0.3s ease;
}

.case-card2:hover::before {
    height: 8px;
}




.case-content1 {
    padding: 30px;
    padding-top: 36px; /* 为彩线留出空间 */
}

.case-content1 h3 {
    color: #2c3e50;
    font-size: 1.5rem;
    margin-bottom: 15px;
    font-weight: 600;  /* 字体粗度 */
}


.case-content1 p {
    color: #7f8c8d;
    margin-bottom: 20px;
    line-height: 1.7;
}

.case-content1 a {
    display: inline-block;
    color: #27AE60;
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
}

.case-content1 a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #27AE60;
    transition: width 0.3s ease;
}

.case-content1 a:hover {
    color: #27AE60;
}

.case-content1 a:hover::after {
    width: 100%;
}

.footer-note {
    text-align: center;
    margin-top: 50px;
    color: #7f8c8d;
    font-size: 0.9rem;
}



/* 证书展示 */
.divider {
    height: 1px;
    background: linear-gradient(to right, transparent, #cbd5e0, transparent);
    width: 80%;
    margin: 30px auto;
}

.photo-wall {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 35px;
    margin-top: 30px;
    padding: 0 20px;
}

.photo-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    background: #fff;
    height: 400px;
    cursor: pointer;
    border: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
}

.photo-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
    border-color: #cbd5e0;
}

.badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: #2c6fd1;
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 1.2rem;
    font-weight: 600;
    z-index: 10;
    box-shadow: 0 3px 10px rgba(44, 111, 209, 0.3);
}

.photo-image {
    width: 100%;
    height: 260px;
    object-fit: cover;
    display: block;
    transition: all 0.3s ease;
    border-bottom: 1px solid #e2e8f0;
    background: #f8fafc;
    padding: 15px;
}

.photo-item:hover .photo-image {
    transform: scale(1.03);
}

.photo-info {
    padding: 22px;
    position: relative;
    z-index: 2;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.photo-title {
    font-size: 1.7rem;
    margin-bottom: 12px;
    font-weight: 600;
    color: #1a3a6c;
    display: flex;
    align-items: center;
}

.photo-title i {
    margin-right: 10px;
    color: #2c6fd1;
    font-size: 1.5rem;
}

.photo-desc {
    font-size: 1.3rem;
    color: #4a5568;
    line-height: 1.6;
    flex-grow: 1;
}

.cert-date {
    margin-top: 15px;
    font-size: 1.2rem;
    color: #718096;
    display: flex;
    align-items: center;
}

.cert-date i {
    margin-right: 8px;
    color: #a0aec0;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.88);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    position: relative;
    max-width: 85%;
    max-height: 85%;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.3);
    animation: zoomIn 0.4s ease;
    display: flex;
    flex-direction: column;
}

.modal-image {
    max-width: 100%;
    max-height: 75vh;
    display: block;
    margin: 0 auto;
    background: #f8fafc;
    padding: 20px;
}

.modal-info {
    padding: 25px;
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
}

.modal-title {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #1a3a6c;
    display: flex;
    align-items: center;
}

.modal-title i {
    margin-right: 12px;
    color: #2c6fd1;
}

.modal-desc {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #4a5568;
    max-width: 700px;
    margin: 0 auto 15px;
}

.modal-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #e2e8f0;
    color: #718096;
    font-size: 0.95rem;
}

.close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    color: white;
    background: rgba(44, 111, 209, 0.9);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 1001;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}

.close-btn:hover {
    background: #1a56c7;
    transform: rotate(90deg);
}

.watermark {
    text-align: center;
    margin-top: 70px;
    color: #718096;
    font-size: 1.2rem;
    padding: 20px;
    border-top: 1px solid #e2e8f0;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.filter-bar {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.filter-btn {
    background: white;
    border: 1px solid #cbd5e0;
    padding: 10px 25px;
    border-radius: 30px;
    font-size: 0.95rem;
    color: #4a5568;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover, .filter-btn.active {
    background: #2c6fd1;
    color: white;
    border-color: #2c6fd1;
    box-shadow: 0 5px 15px rgba(44, 111, 209, 0.2);
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes zoomIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.2rem;
    }
    
    .photo-wall {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 25px;
    }
    
    .photo-item {
        height: 380px;
    }
    
    .modal-content {
        max-width: 95%;
        max-height: 90%;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.8rem;
    }
    
    .photo-wall {
        grid-template-columns: 1fr;
    }
    
    .photo-item {
        height: auto;
    }
    
    .filter-bar {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-btn {
        width: 80%;
        text-align: center;
    }
}