:root {
    --bg: #0b0f1a;
    --card: #0f1424;
    --muted: #9aa4b2;
    --text: #e6eaf2;
    --primary: #5b8cff;
    --primary-2: #8b5bff;
    --accent: #2ee6a6;
    --ring: #2a375a;
    --radius: 16px;
    --shadow: 0 10px 30px rgba(0, 0, 0, .3);
    --maxw: 1200px;

    /* Legacy variables for compatibility */
    --primary-blue: #5b8cff;
    --light-blue: #3b82f6;
    --bg-blue: #1e3a8a;
    --text-white: #e6eaf2;
    --text-gray: #9aa4b2;
    --border-gray: #e5e7eb;
}



* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Prevent horizontal overflow */
html {
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

/* Custom Modal Styles */
.modal-content {
    background-color: var(--card);
    border: 1px solid var(--ring);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    color: var(--text);
}

.modal-header {
    border-bottom: 1px solid var(--ring);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
    border-radius: var(--radius) var(--radius) 0 0;
}

.modal-title {
    color: white;
    font-weight: 600;
    font-size: 1.1rem;
}

.btn-close {
    filter: none;
    opacity: 0.9;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    transition: all 0.3s ease;
    color: var(--text);
    font-size: 20px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
}

.btn-close:hover {
    opacity: 1;
    background-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
    color: var(--text);
}

.modal-body {
    padding: 2rem;
}

/* Language List Styles */
.language-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

.language-item {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
    border-radius: 12px;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-align: center;
    cursor: pointer;
    min-width: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.language-item:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(91, 140, 255, 0.3);
}

.language-item:active {
    transform: translateY(0);
}

.language-item::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 0.5s;
    pointer-events: none;
}

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

/* Modal Animation */
.modal.fade .modal-dialog {
    transform: scale(0.8) translateY(-50px);
    transition: all 0.3s ease;
}

.modal.show .modal-dialog {
    transform: scale(1) translateY(0);
}

/* Modal Backdrop */
.modal-backdrop {
    background-color: rgba(11, 15, 26, 0.8);
    backdrop-filter: blur(4px);
}

/* Image Zoom Modal Styles */
#imageZoomModal .modal-content {
    background: transparent;
    border: none;
    box-shadow: none;
}

#imageZoomModal .modal-header {
    background: transparent;
    border: none;
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 1060;
    padding: 0;
}

#imageZoomModal .btn-close {
    background-color: rgba(0, 0, 0, 0.7);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    opacity: 0.9;
    font-size: 18px;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

#imageZoomModal .btn-close:hover {
    background-color: rgba(0, 0, 0, 0.9);
    border-color: rgba(255, 255, 255, 0.6);
    opacity: 1;
    transform: scale(1.1);
}

#imageZoomModal .modal-body {
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 90vh;
}

#imageZoomModal #zoomedImage {
    max-width: 95vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
    transition: transform 0.3s ease;
}

#imageZoomModal .modal-backdrop {
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(8px);
}

/* 图片加载动画 */
#imageZoomModal #zoomedImage {
    opacity: 0;
    transition: opacity 0.3s ease;
}

#imageZoomModal #zoomedImage.loaded {
    opacity: 1;
}



/* 咨询按钮样式 */
.btn-consultation {
    background-color: #2481cc !important;
    color: white !important;
    padding: 8px 16px;
    border-radius: 50px;
    text-decoration: none !important;
    display: inline-block;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn-consultation:hover {
    background-color: #1e6bb8 !important;
    color: white !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(36, 129, 204, 0.3);
}

/* Hero部分按钮容器样式 */
.hero-cta {
    margin: 30px 0;
    text-align: center;
}

.hero-cta .btn-consultation {
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
}

/* Modal Title Icon */
.modal-title i.fa-globe {
    color: var(--accent);
    text-shadow: 0 0 10px rgba(46, 230, 166, 0.3);
    margin-right: 10px;
}

/* Responsive Modal */
@media (max-width: 576px) {
    .modal-dialog {
        margin: 1rem;
    }

    .modal-body {
        padding: 1.5rem;
    }
}

.container {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 15px;
    padding-right: 15px;
    overflow-x: hidden;
}

.container-fluid {
    max-width: 100%;
    overflow-x: hidden;
}

/* Ensure all sections don't overflow */
section,
div,
main,
article,
aside,
header,
footer {
    max-width: 100%;
    box-sizing: border-box;
}

body {
    font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Microsoft YaHei", "Apple Color Emoji", "Segoe UI Emoji";
    margin: 0;
    padding: 0;
    padding-top: 76px;
    line-height: 1.6;
    color: var(--text);
    background:
        radial-gradient(1000px 400px at 80% -10%, rgba(91, 140, 255, .25), rgba(0, 0, 0, 0)),
        radial-gradient(800px 300px at 10% -10%, rgba(139, 91, 255, .25), rgba(0, 0, 0, 0)),
        linear-gradient(180deg, #0a0e19 0%, #070b14 100%);
    min-height: 100vh;
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
    box-sizing: border-box;

    /* Section Transition Effects */
    section {
        position: relative;
        overflow: hidden;
    }

    section::before {
        content: '';
        position: absolute;
        top: -50px;
        left: 50%;
        transform: translateX(-50%);
        width: 100%;
        max-width: 100vw;
        height: 100px;
        background: radial-gradient(ellipse 800px 100px at center, rgba(91, 140, 255, 0.15), transparent 70%);
        filter: blur(20px);
        pointer-events: none;
        z-index: 0;
    }

    section::after {
        content: '';
        position: absolute;
        bottom: -50px;
        left: 50%;
        transform: translateX(-50%);
        width: 100%;
        max-width: 100vw;
        height: 100px;
        background: radial-gradient(ellipse 800px 100px at center, rgba(139, 91, 255, 0.15), transparent 70%);
        filter: blur(20px);
        pointer-events: none;
        z-index: 0;
    }

    /* Alternate gradient colors for different sections */
    section:nth-child(even)::before {
        background: radial-gradient(ellipse 800px 100px at center, rgba(46, 230, 166, 0.15), transparent 70%);
    }

    section:nth-child(even)::after {
        background: radial-gradient(ellipse 800px 100px at center, rgba(91, 140, 255, 0.15), transparent 70%);
    }

    /* Ensure section content is above the glow effects */
    section>* {
        position: relative;
        z-index: 1;
    }

    /* Navigation Styles */
    .navbar {
        backdrop-filter: saturate(160%) blur(8px);
        background: linear-gradient(180deg, rgba(7, 11, 20, .9), rgba(7, 11, 20, .7)) !important;
        border-bottom: 1px solid rgba(255, 255, 255, .06);
        transition: all 0.3s ease;
        padding: 0.5rem 0;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
        box-sizing: border-box;
    }

    .navbar .container-fluid {
        max-width: 1200px;
        margin: 0 auto;
        padding-left: 2rem;
        padding-right: 2rem;
        box-sizing: border-box;
        display: flex;
        align-items: center;
    }

    /* Desktop navigation layout */
    @media (min-width: 992px) {
        .navbar .container-fluid {
            justify-content: space-between;
        }

        .navbar-collapse {
            flex-grow: 0;
            display: flex !important;
            align-items: center;
            width: 100%;
        }

        .navbar-nav.mx-auto {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
        }

        .dropdown.ms-auto,
        .ms-auto {
            margin-left: auto !important;
        }
    }

    .navbar-brand {
        font-weight: 700;
        letter-spacing: .2px;
        color: var(--text) !important;
        text-decoration: none;
    }

    .logo-circle {
        width: 28px;
        height: 28px;
        border-radius: 8px;
        background: conic-gradient(from 30deg, var(--primary), var(--accent), var(--primary-2), var(--primary));
        box-shadow: inset 0 0 20px rgba(255, 255, 255, .2);
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        font-weight: bold;
        font-size: 14px;
    }

    .logo-text {
        color: var(--text);
        font-size: 1.1rem;
    }

    .navbar-toggler {
        border: 1px solid rgba(255, 255, 255, 0.3);
        padding: 0.25rem 0.5rem;
    }

    .navbar-toggler:focus {
        box-shadow: 0 0 0 0.2rem rgba(255, 255, 255, 0.25);
    }

    .navbar-nav .nav-link {
        color: var(--muted) !important;
        padding: 0.75rem 1.5rem;
        margin: 0 0.5rem;
        border-radius: 8px;
        transition: all 0.3s ease;
        font-size: 1.1rem;
        font-weight: 500;
        letter-spacing: 0.5px;
    }

    .navbar-nav .nav-link:hover {
        color: var(--text) !important;
        background: rgba(255, 255, 255, .06);
    }

    .btn-outline-light {
        border-color: rgba(255, 255, 255, .3);
        color: var(--text);
    }

    .btn-outline-light:hover {
        background: rgba(255, 255, 255, .1);
        border-color: rgba(255, 255, 255, .5);
        color: var(--text);
    }

    .dropdown-menu {
        background: rgba(0, 0, 0, 0.9);
        backdrop-filter: blur(10px);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 8px;
    }

    .dropdown-item {
        color: white;
        transition: all 0.3s ease;
    }

    .dropdown-item:hover {
        background: rgba(255, 255, 255, 0.1);
        color: white;
    }

    .hero-section {
        padding: 80px 0 40px;
        color: var(--text);
        position: relative;
        overflow: hidden;
    }

    .hero-section .container {
        position: relative;
        z-index: 2;
    }

    .hero-title {
        font-size: 2.5rem;
        font-weight: 700;
        text-align: center;
        margin-bottom: 1.5rem;
        line-height: 1.2;
        color: var(--text);
    }

    .hero-subtitle-main {
        font-size: 1.8rem;
        font-weight: 600;
        text-align: center;
        margin-bottom: 1.5rem;
        line-height: 1.3;
    }

    .hero-description {
        font-size: 1.1rem;
        text-align: center;
        margin-bottom: 3rem;
        opacity: 0.9;
        max-width: 800px;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-features {
        text-align: center;
        margin-bottom: 3rem;
        padding: 18px;
        border-radius: var(--radius);
        background: var(--card);
        border: 1px solid rgba(255, 255, 255, .08);
        box-shadow: var(--shadow);
    }

    .features-title {
        font-size: 1.3rem;
        font-weight: 600;
        margin-bottom: 2rem;
        color: white;
    }

    /* Unified List Styles */
    .unified-list {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
        list-style: none;
        padding: 0;
        margin: 25px 0;
    }

    .unified-item {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        padding: 18px 24px;
        border-radius: 12px;
        text-align: center;
        font-weight: 600;
        font-size: 16px;
        line-height: 1.4;
        transition: all 0.3s ease;
        cursor: pointer;
        min-height: 50px;
        display: flex;
        align-items: center;
        justify-content: center;
        min-width: 160px;
        flex: 0 1 auto;
    }

    /* 手机端单列时占满90%宽度居中 */
    @media (max-width: 768px) {
        .unified-list {
            flex-direction: column;
            align-items: center;
        }

        .unified-item {
            width: 90%;
            max-width: 400px;
            min-width: unset;
            flex: none;
        }
    }



    .unified-item:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 35px rgba(102, 126, 234, 0.4);
        background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
    }



    /* Platform Sections */
    .platform-section {
        margin-bottom: 3rem;
        text-align: center;
        padding: 18px;
        border-radius: var(--radius);
        background: var(--card);
        border: 1px solid rgba(255, 255, 255, .08);
        box-shadow: var(--shadow);
    }

    .platform-title {
        font-size: 1.4rem;
        font-weight: 600;
        color: white;
        margin-bottom: 2rem;
    }

    .platform-inputs {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
        max-width: 800px;
        margin: 0 auto;
    }

    .platform-input {
        background: white;
        border: none;
        border-radius: 25px;
        padding: 0.8rem 1.5rem;
        font-size: 14px;
        color: var(--primary-blue);
        min-width: 150px;
        text-align: center;
        outline: none;
    }

    .platform-input::placeholder {
        color: var(--primary-blue);
        opacity: 0.7;
    }



    .compliance-boxes {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 1.5rem;
        max-width: 1000px;
        margin: 0 auto;
    }

    .compliance-box {
        background: var(--card);
        color: var(--text);
        border-radius: var(--radius);
        padding: 18px;
        flex: 1;
        min-width: 250px;
        max-width: 300px;
        border: 1px solid rgba(255, 255, 255, .08);
        box-shadow: var(--shadow);
        backdrop-filter: blur(10px);
        transition: all 0.3s ease;
    }

    .compliance-box:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 40px rgba(0, 0, 0, .4);
        border-color: rgba(255, 255, 255, .15);
    }

    .compliance-box p {
        margin: 0;
        font-size: 14px;
        font-weight: 500;
        line-height: 1.5;
    }



    /* Responsive Design */
    /* Footer Styles */
    .footer-section {
        background:
            radial-gradient(800px 300px at 50% 0%, rgba(91, 140, 255, .15), rgba(0, 0, 0, 0)),
            radial-gradient(600px 200px at 20% 100%, rgba(139, 91, 255, .15), rgba(0, 0, 0, 0)),
            linear-gradient(180deg, var(--bg) 0%, #070b14 100%);
        color: var(--text);
        padding: 60px 0 30px;
        margin-top: 50px;
        border-top: 1px solid rgba(255, 255, 255, .08);
        position: relative;
    }

    .footer-content {
        text-align: center;
    }

    .footer-title {
        font-size: 1.8rem;
        font-weight: 600;
        margin-bottom: 30px;
        color: var(--accent);
        text-shadow: 0 0 20px rgba(46, 230, 166, 0.3);
    }

    .footer-contact {
        margin-bottom: 25px;
    }

    .contact-item {
        margin-bottom: 8px;
        font-size: 1rem;
        line-height: 1.6;
    }

    .contact-label {
        font-weight: 500;
        margin-right: 8px;
    }

    .contact-value {
        font-weight: 400;
        color: var(--text);
    }

    .footer-copyright {
        border-top: 1px solid rgba(255, 255, 255, 0.2);
        padding-top: 20px;
        margin-top: 20px;
    }

    .footer-copyright p {
        margin: 0;
        font-size: 0.9rem;
        opacity: 0.8;
    }

    @media (max-width: 768px) {
        .navbar {
            padding: 0.25rem 0;
        }

        .navbar .container-fluid {
            padding-left: 0.75rem;
            padding-right: 0.75rem;
        }

        .navbar-brand {
            font-size: 1rem;
        }

        .navbar-nav .nav-link {
            padding: 0.6rem 1rem;
            margin: 0 0.25rem;
            font-size: 1rem;
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        .logo-circle {
            width: 24px;
            height: 24px;
            font-size: 12px;
        }

        .logo-text {
            font-size: 1rem;
        }

        .btn-outline-light {
            padding: 0.375rem 0.75rem;
            font-size: 0.875rem;
        }

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

        .hero-subtitle-main {
            font-size: 1.4rem;
        }

        .platform-inputs {
            flex-direction: column;
            align-items: center;
        }

        .platform-input {
            width: 100%;
            max-width: 300px;
        }

        .compliance-boxes {
            flex-direction: column;
            align-items: center;
        }

        .compliance-box {
            max-width: 100%;
            width: 100%;
        }

        .footer-title {
            font-size: 1.4rem;
        }

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

        .footer-copyright p {
            font-size: 0.8rem;
        }
    }

    /* Extra small devices (phones, less than 576px) */
    @media (max-width: 575.98px) {
        .navbar {
            padding: 0.25rem 0;
        }

        .navbar .container-fluid {
            padding-left: 0.5rem;
            padding-right: 0.5rem;
        }

        .navbar-brand {
            font-size: 0.95rem;
        }

        .logo-circle {
            width: 22px;
            height: 22px;
            font-size: 11px;
        }

        .logo-text {
            font-size: 0.95rem;
        }

        .navbar-nav .nav-link {
            padding: 0.5rem 0.75rem;
            margin: 0 0.15rem;
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.2px;
        }

        .btn-outline-light {
            padding: 0.25rem 0.5rem;
            font-size: 0.8rem;
        }

        .navbar-toggler {
            padding: 0.2rem 0.4rem;
            font-size: 0.9rem;
        }
    }



    .features-section {
        padding: 60px 0;
    }

    .feature-card {
        padding: 18px;
        border: 1px solid rgba(255, 255, 255, .08);
        border-radius: 16px;
        background: rgba(9, 13, 23, .7);
        text-align: center;
        height: 100%;
        transition: transform 0.3s ease, border-color 0.3s ease;
    }

    .feature-card:hover {
        transform: translateY(-4px);
        border-color: rgba(46, 230, 166, .5);
    }

    .feature-icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
        display: inline-grid;
        place-items: center;
        background: linear-gradient(135deg, rgba(91, 140, 255, .3), rgba(139, 91, 255, .3));
        border: 1px solid rgba(255, 255, 255, .18);
        margin: 0 auto 16px;
        font-size: 20px;
    }

    .feature-title {
        font-size: 1.25rem;
        font-weight: 600;
        margin: 8px 0;
        color: var(--text);
    }

    .feature-description {
        color: var(--muted);
        line-height: 1.6;
        margin: 6px 0 0;
    }

    /* Main Header Section */
    .main-header-section {
        padding: 60px 0 40px 0;
        text-align: center;
    }

    .main-title {
        font-size: 2.5rem;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 1rem;
    }

    .main-subtitle {
        color: var(--muted);
        font-size: 1.1rem;
        max-width: 600px;
        margin: 0 auto;
    }

    /* Content Section */
    .content-section {
        padding: 40px 0 60px 0;
    }

    .content-title {
        font-size: 2rem;
        font-weight: 700;
        text-align: center;
        margin-bottom: 1rem;
        color: var(--text);
    }

    .content-subtitle {
        text-align: center;
        color: var(--muted);
        font-size: 1rem;
        margin-bottom: 3rem;
    }

    /* 案例分类区域样式 */
    .case-category {
        margin-bottom: 4rem;
        max-width: 1200px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 15px;
        padding-right: 15px;
    }

    .case-category:last-child {
        margin-bottom: 0;
    }

    .category-title {
        font-size: 2rem;
        font-weight: 600;
        color: var(--text);
        text-align: center;
        margin-bottom: 0.5rem;
    }

    .category-subtitle {
        font-size: 1.1rem;
        color: var(--muted);
        text-align: center;
        margin-bottom: 2rem;
    }

    /* Service Highlights Section */
    .service-highlights-section {
        padding: 60px 0;
        background: rgba(9, 13, 23, .3);
    }

    /* 所有屏幕尺寸下highlight-card列容器居中 */
    .service-highlights-section .col-12.col-sm-6.col-lg-3 {
        display: flex;
        justify-content: center;
        margin: 0 auto;
    }

    .highlights-title {
        font-size: 2rem;
        font-weight: 600;
        text-align: center;
        margin-bottom: 3rem;
        color: var(--text);
        line-height: 1.2;
        margin-left: auto;
        margin-right: auto;
        padding: 0 20px;
    }

    .highlights-grid {
        display: flex;
        flex-wrap: nowrap;
        justify-content: center;
        gap: 1.5rem;
        max-width: 100%;
        margin: 0 auto;
        padding: 0 20px;
        overflow-x: auto;
    }

    .highlight-card {
        background: var(--card);
        border: 2px solid transparent;
        border-radius: 12px;
        padding: 20px 30px;
        text-align: center;
        transition: all 0.3s ease;
        cursor: pointer;
        position: relative;
        flex: 1;
        min-width: 200px;
        max-width: 280px;
        margin: 0 auto;
        background-image: linear-gradient(var(--card), var(--card)),
            linear-gradient(45deg, var(--accent), var(--primary), var(--primary-2));
        background-origin: border-box;
        background-clip: padding-box, border-box;
        box-shadow: 0 4px 20px rgba(0, 0, 0, .15);
    }

    .highlight-card:hover {
        transform: translateY(-4px);
        box-shadow:
            0 8px 30px rgba(0, 0, 0, .25),
            0 0 20px rgba(46, 230, 166, .3);
        border-color: var(--accent);
        background-image: linear-gradient(rgba(46, 230, 166, .05), rgba(46, 230, 166, .05)),
            linear-gradient(45deg, var(--accent), var(--primary), var(--primary-2));
    }

    .highlight-text {
        color: var(--text);
        font-size: 1.1rem;
        font-weight: 600;
        display: block;
        letter-spacing: 0.3px;
        line-height: 1.4;
    }

    /* 平板端：两行显示，每行两个 */
    @media (max-width: 1024px) and (min-width: 769px) {
        .highlights-grid {
            max-width: 600px;
        }

        .service-highlights-section .col-12.col-sm-6.col-lg-3 {
            display: flex;
            justify-content: center;
            margin: 0 auto;
        }

        .highlight-card {
            width: 260px;
            margin: 0 auto;
        }
    }

    /* 手机端样式调整 */
    @media (max-width: 768px) {
        .highlights-title {
            font-size: 1.6rem;
            padding: 0 20px;
        }

        .highlight-card {
            max-width: 300px;
            margin: 0 auto;
        }

        /* 成功案例展示：手机端单列 */
        .cases-grid {
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        .content-title {
            font-size: 1.6rem;
        }

        .category-title {
            font-size: 1.4rem;
        }

        /* 手机端所有row容器居中对齐 */
        .container .row {
            justify-content: center;
            margin-left: auto;
            margin-right: auto;
        }

        /* 手机端features-section的列居中 */
        .features-section .col-md-3 {
            display: flex;
            justify-content: center;
            max-width: 400px;
            margin: 0 auto;
        }

        .features-section .feature-card {
            width: 100%;
            max-width: 320px;
        }

        /* 手机端case-card居中对齐 */
        .case-category .col-12.col-md-4 {
            display: flex;
            justify-content: center;
            max-width: 400px;
            margin: 0 auto;
            padding-left: 0;
            padding-right: 0;
            margin-bottom: 1rem !important;
            /* 覆盖Bootstrap的mb-4 */
        }

        .case-category .case-card {
            width: 100%;
            margin: 0 auto;
        }

        /* 手机端service-highlights的列居中 */
        .service-highlights-section .col-12.col-sm-6.col-lg-3 {
            display: flex;
            justify-content: center;
            max-width: 400px;
            margin: 0 auto;
        }

        .service-highlights-section .highlight-card {
            width: 100%;
            max-width: 320px;
            margin: 0 auto;
        }
    }

    .section-subtitle {
        text-align: center;
        color: var(--muted);
        font-size: 1.1rem;
        margin-bottom: 3rem;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }

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

    .case-card {
        background: rgba(9, 13, 23, .7);
        border: 1px solid rgba(255, 255, 255, .08);
        border-radius: 16px;
        overflow: hidden;
        transition: transform 0.3s ease, border-color 0.3s ease;
        cursor: pointer;
        height: 680px;
        width: 100%;
        display: flex;
        flex-direction: column;
    }

    .case-card:hover {
        transform: translateY(-4px);
        border-color: rgba(46, 230, 166, .5);
    }

    .case-image {
        position: relative;
        overflow: hidden;
        height: 100%;
        flex: 1;
    }

    .case-image img {
        width: 100%;
        height: 100%;
        object-fit: fill;
        transition: transform 0.3s ease;
    }

    .case-overlay {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.7);
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        transition: opacity 0.3s ease;
    }

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

    .case-card:hover .case-image img {
        transform: scale(1.1);
    }

    .zoom-hint {
        color: white;
        font-size: 1rem;
        font-weight: 500;
        text-align: center;
        padding: 12px 20px;
        background: rgba(46, 230, 166, .2);
        border: 1px solid rgba(46, 230, 166, .5);
        border-radius: 25px;
        backdrop-filter: blur(10px);
    }

    .case-title {
        font-size: 1.25rem;
        font-weight: 600;
        color: var(--text);
        padding: 20px;
        margin: 0;
        text-align: center;
    }

    .products-section {
        background: #f8fafc;
        padding: 60px 0;
    }

    .section-title {
        font-size: 2rem;
        font-weight: 700;
        text-align: center;
        margin-bottom: 3rem;
        color: var(--text);
    }

    .product-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 2rem;
        margin-bottom: 3rem;
    }

    .product-item {
        background: white;
        border-radius: 12px;
        overflow: hidden;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        transition: transform 0.3s;
    }

    .product-item:hover {
        transform: translateY(-5px);
    }

    .product-image {
        width: 100%;
        height: 200px;
        background: linear-gradient(45deg, #f3f4f6, #e5e7eb);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-gray);
    }

    .product-content {
        padding: 1.5rem;
    }

    .product-title {
        font-weight: 600;
        margin-bottom: 0.5rem;
        color: #1f2937;
    }

    .product-description {
        color: var(--text-gray);
        font-size: 14px;
        line-height: 1.5;
    }

    .testimonials-section {
        background: white;
        padding: 60px 0;
    }

    .testimonial-card {
        background: #f8fafc;
        border-radius: 12px;
        padding: 2rem;
        margin-bottom: 2rem;
    }

    .testimonial-text {
        font-style: italic;
        margin-bottom: 1rem;
        color: #374151;
    }

    .testimonial-author {
        font-weight: 600;
        color: #1f2937;
    }

    .cta-section {
        background: linear-gradient(135deg, var(--bg-blue) 0%, var(--primary-blue) 100%);
        padding: 60px 0;
        color: white;
        text-align: center;
    }

    .cta-title {
        font-size: 2rem;
        font-weight: 700;
        margin-bottom: 1rem;
    }

    .cta-description {
        font-size: 1.1rem;
        margin-bottom: 2rem;
        opacity: 0.9;
    }

    .btn-cta {
        background: white;
        color: var(--primary-blue);
        border: none;
        border-radius: 8px;
        padding: 15px 30px;
        font-weight: 600;
        font-size: 16px;
        transition: transform 0.3s;
    }

    .btn-cta:hover {
        transform: translateY(-2px);
        color: var(--primary-blue);
    }

    @media (max-width: 768px) {
        .hero-title {
            font-size: 2rem;
        }

        .search-form {
            padding: 1.5rem;
        }

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



    
}