/* 能源交易页面专用样式 */

/* 基础容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
    box-sizing: border-box;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
}

/* 页面横幅样式 */
.page-hero {
    position: relative;
    height: 60vh;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* background: linear-gradient(135deg, 
        rgba(153, 188, 98, 0.8) 0%, 
        rgba(153, 188, 98, 0.6) 50%, 
        rgba(0, 0, 0, 0.4) 100%); */
    z-index: 2;
}

.page-hero .hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    max-width: 1000px;
    z-index: 10;
    color: white;
    padding: 0 1rem;
    text-align: center;
}

.page-hero .page-header-content,
.page-header .page-header-content {
    margin-bottom: 0;
    left: 50% !important;
    text-align: center !important;
    transform: translate(-50%, -50%) !important;
    width: 90% !important;
    max-width: 1200px !important;
    min-height: auto !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    align-items: center !important;
    margin-top: 3%;
}

.page-hero .page-header-content .page-title,
.page-header .page-header-content .page-title,
.page-header-content .page-title {
    margin-top: 2rem !important;
    margin-bottom: 0.8rem !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    text-align: center !important;
    position: relative;
    left: 0 !important;
    transform: none !important;
    width: 100% !important;
    font-size: 2.5rem !important;
    line-height: 1.1 !important;
    word-wrap: break-word !important;
    flex-shrink: 0 !important;
}

.page-hero .page-header-content .page-subtitle,
.page-header .page-header-content .page-subtitle,
.page-header-content .page-subtitle {
    margin-top: 0 !important;
    margin-bottom: 2rem !important;
    margin-left: auto !important;
    margin-right: auto !important;
    display: block;
    width: 100% !important;
    max-width: 800px !important;
    text-align: center !important;
    position: relative;
    left: 0 !important;
    transform: none !important;
    font-size: 1.1rem !important;
    line-height: 1.5 !important;
    word-wrap: break-word !important;
    flex-shrink: 1 !important;
}

.page-hero .page-header-content .hero-buttons {
    margin-top: 1.5rem;
}

/* 响应式调整 - 页面标题 */
@media (max-width: 768px) {
    .page-hero .page-header-content,
    .page-header .page-header-content {
        width: 95% !important;
    }

    .page-hero .page-header-content .page-title,
    .page-header .page-header-content .page-title,
    .page-header-content .page-title {
        font-size: 2rem !important;
        margin-top: 1.5rem !important;
        margin-bottom: 0.6rem !important;
    }

    .page-hero .page-header-content .page-subtitle,
    .page-header .page-header-content .page-subtitle,
    .page-header-content .page-subtitle {
        font-size: 1rem !important;
        max-width: 90% !important;
        margin-bottom: 1.5rem !important;
    }
}

@media (max-width: 480px) {
    .page-hero .page-header-content .page-title,
    .page-header .page-header-content .page-title,
    .page-header-content .page-title {
        font-size: 1.6rem !important;
        margin-top: 1.2rem !important;
        margin-bottom: 0.5rem !important;
    }

    .page-hero .page-header-content .page-subtitle,
    .page-header .page-header-content .page-subtitle,
    .page-header-content .page-subtitle {
        font-size: 0.9rem !important;
        max-width: 95% !important;
        margin-bottom: 1.2rem !important;
    }
}

/* 高缩放级别适配 (150%缩放等) */
@media (min-resolution: 144dpi), (min-resolution: 1.5dppx) {
    .page-hero .page-header-content .page-title,
    .page-header .page-header-content .page-title,
    .page-header-content .page-title {
        font-size: 2.2rem !important;
        margin-top: 1.8rem !important;
        margin-bottom: 0.7rem !important;
    }

    .page-hero .page-header-content .page-subtitle,
    .page-header .page-header-content .page-subtitle,
    .page-header-content .page-subtitle {
        font-size: 1rem !important;
        line-height: 1.4 !important;
        max-width: 700px !important;
        margin-bottom: 1.8rem !important;
    }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1rem;
    opacity: 0.95;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    padding: 12px 30px;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 50px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, #00978c 0%, #007a70 100%);
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(0, 151, 140, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(153, 188, 98, 0.4);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.8);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    transform: translateY(-2px);
}

/* 业务案例专区样式 */
.business-cases {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8faf6 0%, #ffffff 100%);
}

.energy-showcase {
    margin-top: 60px;
}

.tab-navigation {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.energy-tab-btn {
    background: white;
    border: 2px solid #e5e7eb;
    border-radius: 15px;
    padding: 20px 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    min-width: 150px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.energy-tab-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 151, 140, 0.15);
    border-color: #00978c;
}

.energy-tab-btn.active {
    background: linear-gradient(135deg, #00978c 0%, #007a70 100%);
    color: white;
    border-color: #00978c;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 151, 140, 0.3);
}

.tab-icon {
    font-size: 2rem;
    margin-bottom: 5px;
}

.energy-tab-btn span {
    font-weight: 600;
    font-size: 1rem;
}

.tab-content-area {
    position: relative;
    min-height: 600px;
}

.energy-tab-content {
    display: none;
    animation: fadeInUp 0.5s ease;
}

.energy-tab-content.active {
    display: block;
}

/* 案例卡片样式 */
.case-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    border: 1px solid #f0f0f0;
    display: flex;
    gap: 3rem;
    align-items: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0,151,140,0.05), transparent);
    transition: left 0.6s ease;
}

.case-card:hover::before {
    left: 100%;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.12);
}

/* 左侧布局：图片在左，内容在右 */
.case-layout-left {
    flex-direction: row;
}

/* 右侧布局：内容在左，图片在右 */
.case-layout-right {
    flex-direction: row-reverse;
}

.case-image-section {
    flex: 1;
    position: relative;
}

.case-content-section {
    flex: 1.2;
}

.case-image {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    height: 350px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.case-card:hover .case-image img {
    transform: scale(1.05);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.4s ease;
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    padding: 1.5rem;
}

.case-card:hover .image-overlay {
    opacity: 1;
}

.case-badge {
    background: white;
    color: #00978c;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.875rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

.case-header h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #2d3748;
    margin: 0;
}

.case-tag {
    background: linear-gradient(135deg, #00978c 0%, #007a70 100%);
    color: white;
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
}

.case-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 25px;
    max-width: 100%;
}

/* 兼容2个卡片的情况 */
.case-stats-grid:has(.stat-card:nth-child(2):last-child) {
    grid-template-columns: repeat(2, 1fr);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* 兼容3个卡片的情况 */
.case-stats-grid:has(.stat-card:nth-child(3):last-child) {
    grid-template-columns: repeat(3, 1fr);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.stat-card {
    background: linear-gradient(135deg, #f8faf6 0%, #ffffff 100%);
    border-radius: 12px;
    padding: 15px;
    text-align: center;
    border: 1px solid #e8f5e8;
    transition: all 0.3s ease;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(153, 188, 98, 0.15);
}

.stat-icon {
    font-size: 1.8rem;
    color: #00978c;
    margin-bottom: 8px;
}

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

.stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: #2d3748;
    line-height: 1;
}

.stat-unit {
    font-size: 0.9rem;
    font-weight: 600;
    color: #00978c;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.85rem;
    color: #6b7280;
    margin: 0;
    font-weight: 500;
    line-height: 1.2;
}

.case-description {
    margin-bottom: 30px;
    line-height: 1.8;
}

.case-description p {
    margin-bottom: 15px;
    color: #4a5568;
    font-size: 1rem;
}

.case-actions {
    text-align: center;
}

.case-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

/* 我们的实力样式 */
.our-strength {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8fffe 0%, #ffffff 50%, #f0f9f4 100%);
    position: relative;
    overflow: hidden;
}

.our-strength::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 15% 25%, rgba(0,151,140,0.08) 0%, transparent 40%),
        radial-gradient(circle at 85% 75%, rgba(0,122,112,0.06) 0%, transparent 40%),
        linear-gradient(45deg, transparent 48%, rgba(0,151,140,0.02) 50%, transparent 52%);
    pointer-events: none;
    animation: strengthBgFloat 20s ease-in-out infinite;
}

@keyframes strengthBgFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(1deg); }
}

.strength-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 4rem;
    position: relative;
    z-index: 1;
}

.strength-card {
    background: linear-gradient(145deg, #ffffff 0%, #fafffe 100%);
    border-radius: 24px;
    padding: 3rem 2rem;
    text-align: center;
    border: 2px solid transparent;
    background-clip: padding-box;
    position: relative;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow:
        0 8px 32px rgba(153, 188, 98, 0.12),
        0 2px 8px rgba(0, 0, 0, 0.04);
}

.strength-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg,
        rgba(0,151,140,0.3) 0%,
        rgba(0,122,112,0.2) 25%,
        transparent 50%,
        rgba(0,151,140,0.2) 75%,
        rgba(0,151,140,0.3) 100%);
    border-radius: 26px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.strength-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
        transparent,
        rgba(255,255,255,0.4),
        transparent);
    transition: left 0.6s ease;
    z-index: 2;
}

.strength-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow:
        0 20px 60px rgba(153, 188, 98, 0.25),
        0 8px 24px rgba(0, 0, 0, 0.08);
}

.strength-card:hover::before {
    opacity: 1;
}

.strength-card:hover::after {
    left: 100%;
}

.strength-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 2rem;
    background: linear-gradient(135deg, #00978c 0%, #007a70 50%, #00978c 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2.25rem;
    position: relative;
    transition: all 0.4s ease;
    box-shadow:
        0 8px 24px rgba(153, 188, 98, 0.3),
        inset 0 2px 4px rgba(255,255,255,0.2);
}

.strength-icon::before {
    content: '';
    position: absolute;
    top: -8px;
    left: -8px;
    right: -8px;
    bottom: -8px;
    background: linear-gradient(135deg,
        rgba(0,151,140,0.2) 0%,
        transparent 50%,
        rgba(0,151,140,0.2) 100%);
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: all 0.4s ease;
    animation: iconPulse 3s ease-in-out infinite;
}

@keyframes iconPulse {
    0%, 100% { transform: scale(1); opacity: 0; }
    50% { transform: scale(1.1); opacity: 0.3; }
}

.strength-card:hover .strength-icon {
    transform: scale(1.1) rotateY(10deg);
    box-shadow:
        0 12px 32px rgba(153, 188, 98, 0.4),
        inset 0 2px 4px rgba(255,255,255,0.3);
}

.strength-card:hover .strength-icon::before {
    opacity: 0.6;
    transform: scale(1.2);
}

.strength-content {
    position: relative;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.strength-number-container {
    position: relative;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.strength-number {
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(135deg, #00978c 0%, #007a70 50%, #00978c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 0.9;
    margin-bottom: 0;
    text-shadow: 0 4px 8px rgba(153, 188, 98, 0.2);
    position: relative;
    display: inline-block;
    animation: numberGlow 4s ease-in-out infinite;
}

@keyframes numberGlow {
    0%, 100% { filter: drop-shadow(0 0 8px rgba(153, 188, 98, 0.3)); }
    50% { filter: drop-shadow(0 0 16px rgba(153, 188, 98, 0.5)); }
}

.strength-unit {
    font-size: 1rem;
    font-weight: 700;
    background: linear-gradient(135deg, #007a70 0%, #00978c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0;
    letter-spacing: 0.3px;
    white-space: nowrap;
    position: absolute;
    top: -5px;
    right: -50px;
    vertical-align: super;
    line-height: 1;
    transform: translateY(-30%);
}

.strength-label {
    font-size: 1.125rem;
    color: #4a5568;
    margin: 0;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: 0.3px;
    position: relative;
    white-space: nowrap;
}

.strength-label::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #00978c, transparent);
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.strength-card:hover .strength-label::after {
    opacity: 1;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .page-hero .hero-content {
        left: 50%;
        width: 90%;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

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

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-navigation {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .energy-tab-btn {
        min-width: 200px;
    }
    
    .case-card {
        padding: 25px;
        flex-direction: column !important;
        gap: 1.5rem;
    }

    .case-layout-left,
    .case-layout-right {
        flex-direction: column !important;
    }

    .case-image {
        height: 250px;
    }

    .case-header h3 {
        font-size: 1.5rem;
    }

    .case-stats-grid {
        grid-template-columns: 1fr !important;
        max-width: 100% !important;
        gap: 12px;
    }

    .stat-card {
        padding: 12px;
        min-height: 100px;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .stat-icon {
        font-size: 1.5rem;
        margin-bottom: 6px;
    }

    .stat-unit {
        font-size: 0.8rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }
    
    .our-strength {
        padding: 4rem 0;
    }

    .strength-showcase {
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-top: 3rem;
    }

    .strength-card {
        padding: 2.5rem 1.5rem;
        border-radius: 20px;
    }

    .strength-icon {
        width: 75px;
        height: 75px;
        font-size: 2rem;
        margin-bottom: 1.5rem;
    }

    .strength-number {
        font-size: 3.5rem;
    }

    .strength-unit {
        font-size: 0.85rem;
        white-space: nowrap;
        right: -40px;
        top: -5px;
        transform: translateY(-25%);
    }

    .strength-label {
        font-size: 1rem;
        white-space: nowrap;
    }
}

@media (max-width: 480px) {
    .page-hero {
        height: 50vh;
        min-height: 400px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .case-header {
        flex-direction: column;
        text-align: center;
    }

    .our-strength {
        padding: 3rem 0;
    }

    .strength-showcase {
        gap: 1.5rem;
        margin-top: 2rem;
    }

    .strength-number {
        font-size: 3rem;
    }

    .strength-unit {
        font-size: 0.9rem;
        white-space: nowrap;
        right: -30px;
        top: -6px;
    }

    .strength-icon {
        width: 65px;
        height: 65px;
        font-size: 1.75rem;
        margin-bottom: 1.25rem;
    }

    .strength-card {
        padding: 2rem 1.25rem;
        border-radius: 18px;
    }

    .strength-label {
        font-size: 0.95rem;
        white-space: nowrap;
    }
}

/* 修复返回顶端按钮被遮挡的问题和页面底部留白 */
.back-to-top {
    z-index: 99999 !important;
    position: fixed !important;
    bottom: 2rem !important;
    right: 2rem !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

/* 去除页面底部多余留白 */
html, body {
    margin: 0 !important;
    padding: 0 !important;
    overflow-x: hidden;
}

.footer {
    margin-bottom: 0 !important;
    padding-bottom: 1rem !important;
}

/* 移除任何可能的底部空白 */
body::after,
html::after,
.footer::after {
    display: none !important;
}

/* 移动端返回顶端按钮调整 */
@media (max-width: 576px) {
    .back-to-top {
        bottom: 1rem !important;
        right: 1rem !important;
        width: 45px !important;
        height: 45px !important;
    }
}

/* 业务介绍模块样式 */
.business-intro {
    padding: 6rem 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8fffe 50%, #ffffff 100%);
    position: relative;
    overflow: visible;
    min-height: auto;
}

.business-intro::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 30%, rgba(0,151,140,0.05) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(0,122,112,0.04) 0%, transparent 40%);
    pointer-events: none;
}

.intro-content {
    position: relative;
    z-index: 1;
    margin-top: 4rem;
    width: 100%;
    min-height: auto;
    overflow: visible;

    
}

/* 核心概念展示 */
.concept-showcase {
    background: linear-gradient(135deg, #ffffff 0%, #f8fffe 100%);
    border-radius: 32px;
    padding: 4rem 3rem;
    margin-bottom: 5rem;
    box-shadow: 0 20px 60px rgba(0,151,140,0.08);
    border: 1px solid rgba(0,151,140,0.1);
    position: relative;
    overflow: visible;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
}

.concept-showcase::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 20%, rgba(0,151,140,0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0,151,140,0.02) 0%, transparent 50%);
    pointer-events: none;
}

.concept-main {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    z-index: 1;
}



.concept-text {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.concept-text h3 {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #2d3748 0%, #00978c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    display: inline-block;
}

.concept-desc {
    font-size: 1.375rem;
    color: #4a5568;
    line-height: 1.6;
    margin: 0;
    font-weight: 500;
}

.concept-benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.benefit-item {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    box-shadow: 0 8px 32px rgba(0,151,140,0.06);
    border: 1px solid rgba(0,151,140,0.1);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.benefit-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0,151,140,0.05), transparent);
    transition: left 0.6s ease;
}

.benefit-item:hover::before {
    left: 100%;
}

.benefit-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0,151,140,0.12);
    border-color: rgba(0,151,140,0.2);
}

.benefit-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #00978c 0%, #007a70 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.75rem;
    flex-shrink: 0;
    box-shadow: 0 8px 24px rgba(0,151,140,0.25);
    transition: all 0.3s ease;
}

.benefit-item:hover .benefit-icon {
    transform: scale(1.1) rotateY(15deg);
}

.benefit-text h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.benefit-text p {
    color: #6b7280;
    font-size: 1rem;
    margin: 0;
    line-height: 1.4;
}

/* 入市对象模块 */
.market-participants {
    margin-bottom: 5rem;
    width: 100%;
    display: block;
    overflow: visible;
}

.participants-header {
    text-align: center;
    margin-bottom: 3rem;
}

.participants-header .header-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #00978c 0%, #007a70 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    margin: 0 auto 1.5rem;
    box-shadow: 0 12px 32px rgba(0,151,140,0.25);
    animation: headerIconFloat 4s ease-in-out infinite;
}

@keyframes headerIconFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.participants-header h3 {
    font-size: 2.25rem;
    font-weight: 800;
    color: #2d3748;
    margin-bottom: 0.75rem;
}

.participants-header p {
    font-size: 1.125rem;
    color: #6b7280;
    margin: 0;
}

.participants-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    max-width: 100%;
    margin: 0 auto;
}

.participant-card {
    background: white;
    border-radius: 24px;
    padding: 3rem;
    box-shadow: 0 12px 48px rgba(0,151,140,0.08);
    border: 2px solid transparent;
    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.participant-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.8s ease;
}

.participant-card:hover::before {
    left: 100%;
}

.participant-card.mandatory {
    border-color: rgba(231, 76, 60, 0.2);
}

.participant-card.mandatory:hover {
    border-color: rgba(231, 76, 60, 0.4);
    transform: translateY(-12px);
    box-shadow: 0 20px 60px rgba(231, 76, 60, 0.15);
}

.participant-card.optional {
    border-color: rgba(0, 151, 140, 0.2);
}

.participant-card.optional:hover {
    border-color: rgba(0, 151, 140, 0.4);
    transform: translateY(-12px);
    box-shadow: 0 20px 60px rgba(0, 151, 140, 0.15);
}

.card-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mandatory .card-badge {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

.optional .card-badge {
    background: linear-gradient(135deg, #00978c, #007a70);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 151, 140, 0.3);
}

.participant-card .card-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    transition: all 0.4s ease;
}

.mandatory .card-icon {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    box-shadow: 0 8px 32px rgba(231, 76, 60, 0.3);
}

.optional .card-icon {
    background: linear-gradient(135deg, #00978c, #007a70);
    box-shadow: 0 8px 32px rgba(0, 151, 140, 0.3);
}

.participant-card:hover .card-icon {
    transform: scale(1.1) rotateY(15deg);
}

.participant-card h4 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.participant-card > p {
    font-size: 1.125rem;
    color: #4a5568;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.card-detail {
    background: linear-gradient(135deg, #f8fffe 0%, #ffffff 100%);
    border-radius: 12px;
    padding: 1.25rem;
    font-size: 1rem;
    color: #6b7280;
    border: 1px solid rgba(0,151,140,0.1);
    line-height: 1.5;
}

/* 增值服务模块 - 独立section */
.value-added-services {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8fffe 0%, #ffffff 50%, #f0f9f4 100%);
    position: relative;
    overflow: hidden;
}

.value-added-services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 25% 25%, rgba(0,151,140,0.06) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(0,122,112,0.04) 0%, transparent 50%);
    pointer-events: none;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.service-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fffe 100%);
    border-radius: 20px;
    padding: 2.5rem 1.5rem;
    box-shadow: 0 12px 48px rgba(0,151,140,0.08);
    border: 2px solid rgba(0,151,140,0.1);
    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
    text-align: center;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0,151,140,0.05), transparent);
    transition: left 0.8s ease;
}

.service-card:hover::before {
    left: 100%;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0,151,140,0.15);
    border-color: rgba(0,151,140,0.2);
}

.service-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    position: relative;
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #00978c 0%, #007a70 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
    box-shadow: 0 8px 24px rgba(0,151,140,0.3);
    transition: all 0.4s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotateY(15deg);
}

.service-number {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #2d3748, #1a202c);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    font-weight: 700;
    color: white;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.service-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.service-description {
    font-size: 1rem;
    color: #6b7280;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.service-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    color: #4a5568;
    transition: all 0.3s ease;
}

.service-features li:last-child {
    margin-bottom: 0;
}

.service-features li i {
    color: #00978c;
    font-size: 0.875rem;
    width: 16px;
    text-align: center;
}

.service-card:hover .service-features li {
    transform: translateX(5px);
    color: #2d3748;
}

/* 增值服务响应式设计 */
@media (max-width: 1024px) {
    .services-grid {
        gap: 1.5rem;
    }

    .service-card {
        padding: 2rem 1.25rem;
        min-height: 350px;
    }
}

@media (max-width: 768px) {
    .value-added-services {
        padding: 4rem 0;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .service-card {
        padding: 2rem 1.5rem;
        min-height: auto;
    }

    .service-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .service-number {
        width: 30px;
        height: 30px;
        font-size: 0.875rem;
        top: -8px;
        right: -8px;
    }

    .service-content h3 {
        font-size: 1.375rem;
    }

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

@media (max-width: 480px) {
    .value-added-services {
        padding: 3rem 0;
    }

    .service-card {
        padding: 1.5rem 1rem;
    }

    .service-icon {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }

    .service-content h3 {
        font-size: 1.375rem;
    }

    .service-features li {
        font-size: 0.9rem;
    }
}









/* 平台优势模块样式 */
.platform-advantages {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8faf6 0%, #ffffff 50%, #f0f9f4 100%);
    position: relative;
    overflow: hidden;
}

.platform-advantages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 25% 25%, rgba(0,151,140,0.06) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(0,122,112,0.04) 0%, transparent 50%),
        linear-gradient(45deg, transparent 48%, rgba(0,151,140,0.02) 50%, transparent 52%);
    pointer-events: none;
    animation: advantagesBgFloat 25s ease-in-out infinite;
}

@keyframes advantagesBgFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(2deg); }
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-top: 4rem;
    position: relative;
    z-index: 1;
}

@media (max-width: 1024px) {
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.advantage-card {
    background: linear-gradient(145deg, #ffffff 0%, #fafffe 100%);
    border-radius: 24px;
    padding: 2.5rem;
    border: 2px solid transparent;
    background-clip: padding-box;
    position: relative;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow:
        0 8px 32px rgba(0,151,140,0.12),
        0 2px 8px rgba(0, 0, 0, 0.04);
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg,
        rgba(0,151,140,0.3) 0%,
        rgba(0,122,112,0.2) 25%,
        transparent 50%,
        rgba(0,151,140,0.2) 75%,
        rgba(0,151,140,0.3) 100%);
    border-radius: 26px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.advantage-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
        transparent,
        rgba(255,255,255,0.4),
        transparent);
    transition: left 0.6s ease;
    z-index: 2;
}

.advantage-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow:
        0 20px 60px rgba(0,151,140,0.25),
        0 8px 24px rgba(0, 0, 0, 0.08);
}

.advantage-card:hover::before {
    opacity: 1;
}

.advantage-card:hover::after {
    left: 100%;
}

.advantage-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, #00978c 0%, #007a70 50%, #00978c 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    position: relative;
    transition: all 0.4s ease;
    box-shadow:
        0 8px 24px rgba(0,151,140,0.3),
        inset 0 2px 4px rgba(255,255,255,0.2);
}

.advantage-icon::before {
    content: '';
    position: absolute;
    top: -6px;
    left: -6px;
    right: -6px;
    bottom: -6px;
    background: linear-gradient(135deg,
        rgba(0,151,140,0.2) 0%,
        transparent 50%,
        rgba(0,151,140,0.2) 100%);
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: all 0.4s ease;
    animation: iconPulse 3s ease-in-out infinite;
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.1) rotateY(10deg);
    box-shadow:
        0 12px 32px rgba(0,151,140,0.4),
        inset 0 2px 4px rgba(255,255,255,0.3);
}

.advantage-card:hover .advantage-icon::before {
    opacity: 0.6;
    transform: scale(1.2);
}

.advantage-content {
    position: relative;
    z-index: 3;
    text-align: center;
}

.advantage-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.advantage-subtitle {
    font-size: 1rem;
    color: #6b7280;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.provinces-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1rem;
}

.province-tag {
    background: linear-gradient(135deg, #00978c 0%, #007a70 100%);
    color: white;
    padding: 0.375rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: default;
}

.province-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,151,140,0.3);
}

.advantage-points {
    text-align: left;
}

.advantage-point {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 1rem;
    line-height: 1.6;
    color: #4a5568;
}

.advantage-point:last-child {
    margin-bottom: 0;
}

.advantage-point i {
    color: #00978c;
    font-size: 1.125rem;
    margin-top: 0.125rem;
    flex-shrink: 0;
}

/* 项目案例模块样式 */
.project-cases {
    padding: 6rem 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8fffe 50%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.project-cases::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 30% 20%, rgba(0,151,140,0.04) 0%, transparent 40%),
        radial-gradient(circle at 70% 80%, rgba(0,122,112,0.03) 0%, transparent 40%);
    pointer-events: none;
}

.cases-grid {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-top: 4rem;
    position: relative;
    z-index: 1;
}

.case-item {
    display: flex;
    align-items: center;
    gap: 3rem;
    background: white;
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: 0 8px 32px rgba(0,151,140,0.08);
    border: 1px solid rgba(0,151,140,0.1);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.case-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0,151,140,0.05), transparent);
    transition: left 0.6s ease;
}

.case-item:hover::before {
    left: 100%;
}

.case-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0,151,140,0.15);
}

.case-left {
    flex-direction: row;
}

.case-right {
    flex-direction: row-reverse;
}

.case-image {
    flex: 1;
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    height: 300px;
    box-shadow: 0 8px 24px rgba(0,151,140,0.1);
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0,151,140,0.8) 0%, rgba(0,122,112,0.9) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    padding: 1.5rem;
}

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

.case-badge {
    background: white;
    color: #00978c;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.875rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.case-content {
    flex: 1;
    padding: 1rem 0;
    position: relative;
    z-index: 1;
}

.case-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.case-description {
    font-size: 1.125rem;
    line-height: 1.7;
    color: #4a5568;
    margin-bottom: 1.5rem;
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.case-tag {
    background: linear-gradient(135deg, #00978c 0%, #007a70 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.case-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,151,140,0.3);
}

/* 响应式设计 - 新增模块 */
@media (max-width: 768px) {
    .business-intro {
        padding: 4rem 0;
    }

    .concept-showcase {
        padding: 2.5rem;
        margin-bottom: 3rem;
    }

    .concept-main {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
        margin-bottom: 3rem;
    }

    .concept-icon-large {
        width: 120px;
        height: 120px;
        font-size: 3rem;
    }

    .concept-text h3 {
        font-size: 2rem;
    }

    .concept-desc {
        font-size: 1.25rem;
    }

    .concept-benefits {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .benefit-item {
        padding: 1.5rem;
        gap: 1.25rem;
    }

    .benefit-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .participants-header .header-icon {
        width: 70px;
        height: 70px;
        font-size: 1.75rem;
    }

    .participants-header h3 {
        font-size: 2rem;
    }

    .participants-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .participant-card {
        padding: 2rem;
    }

    .participant-card .card-icon {
        width: 80px;
        height: 80px;
        font-size: 2rem;
    }



    .platform-advantages {
        padding: 4rem 0;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-top: 3rem;
    }

    .advantage-card {
        padding: 2rem;
    }

    .advantage-icon {
        width: 70px;
        height: 70px;
        font-size: 1.75rem;
        margin-bottom: 1.25rem;
    }

    .advantage-title {
        font-size: 1.25rem;
    }

    .provinces-list {
        gap: 0.375rem;
    }

    .province-tag {
        font-size: 0.8rem;
        padding: 0.3rem 0.6rem;
    }

    .project-cases {
        padding: 4rem 0;
    }

    .cases-grid {
        gap: 2rem;
        margin-top: 3rem;
    }

    .case-item {
        flex-direction: column !important;
        gap: 1.5rem;
        padding: 2rem;
    }

    .case-left,
    .case-right {
        flex-direction: column !important;
    }

    .case-image {
        height: 250px;
    }

    .case-title {
        font-size: 1.5rem;
    }

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

    .case-tags {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .business-intro {
        padding: 3rem 0;
    }

    .concept-showcase {
        padding: 2rem;
        margin-bottom: 2.5rem;
    }

    .concept-main {
        gap: 1.5rem;
        margin-bottom: 2.5rem;
    }

    .concept-icon-large {
        width: 100px;
        height: 100px;
        font-size: 2.5rem;
    }

    .concept-text h3 {
        font-size: 1.75rem;
    }

    .concept-desc {
        font-size: 1.125rem;
    }

    .benefit-item {
        padding: 1.25rem;
        gap: 1rem;
    }

    .benefit-icon {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }

    .benefit-text h4 {
        font-size: 1.125rem;
    }

    .participants-header .header-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .participants-header h3 {
        font-size: 1.75rem;
    }

    .participants-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .participant-card {
        padding: 1.5rem;
    }

    .participant-card .card-icon {
        width: 70px;
        height: 70px;
        font-size: 1.75rem;
    }

    .participant-card h4 {
        font-size: 1.25rem;
    }



    .platform-advantages {
        padding: 3rem 0;
    }

    .advantage-card {
        padding: 1.5rem;
    }

    .advantage-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }

    .advantage-title {
        font-size: 1.125rem;
    }

    .project-cases {
        padding: 3rem 0;
    }

    .case-item {
        padding: 1.5rem;
        gap: 1.25rem;
    }

    .case-image {
        height: 200px;
    }

    .case-title {
        font-size: 1.375rem;
    }

    .case-description {
        font-size: 0.95rem;
    }

    .case-tag {
        font-size: 0.8rem;
        padding: 0.375rem 0.75rem;
    }
}

/* 浮动联系按钮样式 */
.floating-contact {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 9999;
    font-family: inherit;
}

.floating-contact-btn {
    background: linear-gradient(135deg, #00978c 0%, #007a70 100%);
    color: white;
    padding: 12px 15px 12px 20px;
    border-radius: 25px 0 0 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: -2px 4px 15px rgba(0,151,140,0.3);
    animation: breathe 3s ease-in-out infinite;
    position: relative;
    overflow: hidden;
    min-height: 48px;
}

.floating-contact-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.6s ease;
}

.floating-contact-btn:hover::before {
    left: 100%;
}

.floating-contact-btn:hover {
    transform: translateX(-5px);
    box-shadow: -4px 6px 20px rgba(0,151,140,0.4);
    animation: breatheHover 2s ease-in-out infinite;
}

@keyframes breathe {
    0%, 100% {
        transform: scale(1);
        box-shadow: -2px 4px 15px rgba(0,151,140,0.3);
    }
    50% {
        transform: scale(1.05);
        box-shadow: -4px 6px 20px rgba(0,151,140,0.4);
    }
}

@keyframes breatheHover {
    0%, 100% {
        transform: translateX(-5px) scale(1);
        box-shadow: -4px 6px 20px rgba(0,151,140,0.4);
    }
    50% {
        transform: translateX(-5px) scale(1.08);
        box-shadow: -6px 8px 25px rgba(0,151,140,0.5);
    }
}

.floating-contact-btn i {
    font-size: 1.125rem;
    animation: phoneRing 4s ease-in-out infinite;
}

@keyframes phoneRing {
    0%, 90%, 100% { transform: rotate(0deg); }
    5%, 15% { transform: rotate(-15deg); }
    10%, 20% { transform: rotate(15deg); }
}

.contact-text {
    font-size: 0.95rem;
    font-weight: 600;
    white-space: nowrap;
    letter-spacing: 0.3px;
}

.floating-contact-popup {
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.15);
    padding: 1.5rem;
    margin-right: 10px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    border: 2px solid rgba(0,151,140,0.1);
    min-width: 250px;
}

.floating-contact-popup::before {
    content: '';
    position: absolute;
    right: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-left: 8px solid white;
}

.floating-contact:hover .floating-contact-popup {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(-5px);
}

.popup-content h4 {
    color: #2d3748;
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-align: center;
    border-bottom: 2px solid rgba(0,151,140,0.1);
    padding-bottom: 0.5rem;
}

.popup-content .contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.popup-content .contact-item:hover {
    background: rgba(0,151,140,0.05);
    transform: translateX(3px);
}

.popup-content .contact-item:last-child {
    margin-bottom: 0;
}

.popup-content .contact-item i {
    color: #00978c;
    font-size: 1rem;
    width: 16px;
    text-align: center;
}

.popup-content .contact-item span {
    color: #4a5568;
    font-size: 0.95rem;
    font-weight: 500;
}

/* 响应式设计 - 浮动联系按钮 */
@media (max-width: 768px) {
    .floating-contact-btn {
        padding: 10px 16px 10px 12px;
        min-height: 44px;
    }

    .floating-contact-btn i {
        font-size: 1rem;
    }

    .contact-text {
        font-size: 0.9rem;
    }

    .floating-contact-popup {
        min-width: 220px;
        padding: 1.25rem;
    }

    .popup-content h4 {
        font-size: 1rem;
    }

    .popup-content .contact-item span {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .floating-contact-btn {
        padding: 8px 14px 8px 10px;
        min-height: 40px;
    }

    .floating-contact-btn i {
        font-size: 0.95rem;
    }

    .contact-text {
        font-size: 0.85rem;
    }

    .floating-contact-popup {
        min-width: 200px;
        padding: 1rem;
        margin-left: 8px;
    }

    .popup-content h4 {
        font-size: 0.95rem;
        margin-bottom: 0.75rem;
    }

    .popup-content .contact-item {
        margin-bottom: 0.5rem;
        padding: 0.375rem;
    }

    .popup-content .contact-item span {
        font-size: 0.85rem;
    }
}