:root {
    --brand-primary: #0870f5;
    --brand-primary-hover: #0064e6;
    --brand-primary-soft: rgba(8, 112, 245, 0.1);
    --brand-accent: #08b98b;
    --text-primary: #2a3441;
    --focus-ring: rgba(8, 112, 245, 0.28);
}

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            text-size-adjust: 100%;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
            line-height: 1.5;
            color: var(--text-primary);
            background-color: #fff;
            text-rendering: optimizeLegibility;
        }

        main {
            display: block;
        }

        img {
            max-width: 100%;
        }

        button,
        input,
        select,
        textarea {
            font: inherit;
        }

        [hidden] {
            display: none !important;
        }

        :focus-visible {
            outline: 3px solid var(--focus-ring);
            outline-offset: 3px;
        }

        .u-visually-hidden {
            position: absolute !important;
            width: 1px !important;
            height: 1px !important;
            padding: 0 !important;
            margin: -1px !important;
            overflow: hidden !important;
            clip: rect(0, 0, 0, 0) !important;
            white-space: nowrap !important;
            border: 0 !important;
        }

        .skip-link {
            position: fixed;
            top: 8px;
            left: 8px;
            z-index: 2000;
            padding: 10px 14px;
            color: #fff;
            background: var(--brand-primary);
            border-radius: 6px;
            text-decoration: none;
            transform: translateY(-150%);
            transition: transform 0.2s ease;
        }

        .skip-link:focus {
            transform: translateY(0);
        }



.gz-header {
            position: sticky;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background-color: #fff;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        }
        
        .gz-container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        .gz-header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }



.gz-logo a {
            display: block;
        }
        
        .gz-logo img {
            display: block;
            width: 140px;
            height: auto;
        }



.gz-nav {
            flex: 1;
            display: flex;
            justify-content: center;
        }
        
        .gz-nav-menu {
            display: flex;
            list-style: none;
        }
        
        .gz-nav-menu li {
            margin: 0 15px;
        }
        
        .gz-nav-menu a {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            font-size: 16px;
            padding: 10px 0;
            position: relative;
            transition: color 0.3s;
            display: block;
        }
        
        .gz-nav-menu a:hover {
            color: var(--brand-primary);
        }
        
        .gz-nav-menu .active a {
            color: var(--brand-primary);
        }
        
        .gz-nav-menu .active a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--brand-primary);
        }



.gz-user {
            display: flex;
            align-items: center;
        }
        
        .gz-auth {
            display: flex;
            margin-right: 15px;
        }
        
        .gz-auth a {
            display: inline-block;
            padding: 8px 15px;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            border-radius: 4px;
            transition: all 0.3s;
        }
        
        .gz-login {
            color: #333;
            margin-right: 10px;
        }
        
        .gz-login:hover {
            color: var(--brand-primary);
            background-color: #f0f9ff;
        }
        
        .gz-register {
            color: #fff;
            background-color: var(--brand-primary);
        }
        
        .gz-register:hover {
            background-color: var(--brand-primary-hover);
        }



.gz-hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            width: 30px;
            height: 30px;
            background: none;
            border: none;
            cursor: pointer;
        }
        
        .gz-hamburger-line {
            width: 100%;
            height: 2px;
            background-color: #333;
            margin: 3px 0;
            transition: all 0.3s;
        }



@media (max-width: 992px) {
            .gz-nav {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: #fff;
                padding: 15px 20px;
                transform: translateX(-100%);
                transition: transform 0.3s ease;
                box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
                max-height: calc(100vh - 70px);
                overflow-y: auto;
            }
            
            .gz-nav.active {
                transform: translateX(0);
            }
            
            .gz-nav-menu {
                flex-direction: column;
                width: 100%;
            }
            
            .gz-nav-menu li {
                margin: 0;
                text-align: center;
                cursor: pointer;
            }
            
            .gz-nav-menu a {
                padding: 12px 15px;
                display: block;
                width: 100%;
            }
            
            .gz-nav-menu li:hover {
                background-color: #f5f5f5;
            }
            
            .gz-hamburger {
                display: flex;
            }
        }
        
        @media (max-width: 576px) {
            .gz-header-inner {
                height: 60px;
            }
            
            .gz-logo img {
             
                height: 40px;
            }
            
            .gz-auth {
                margin-right: 10px;
            }
            
            .gz-auth a {
                padding: 6px 12px;
                font-size: 13px;
            }
            
            .gz-nav {
                top: 60px;
            }
        }



.gz-hero {
            background-color: #f8f9fa;
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }
        
        .gz-hero-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        
        .gz-hero-content {
            flex: 0 0 50%; 
            padding-right: 40px; 
        }
        
        .gz-hero-title {
            font-size: 2.2rem; 
            font-weight: 700;
            color: #333;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .gz-hero-subtitle {
            font-size: 1.1rem; 
            color: #666;
            margin-bottom: 30px;
            line-height: 1.6;
        }



.gz-hero-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 40px;
        }
        
        .gz-feature-item {
            display: flex;
            align-items: flex-start;
            padding: 12px;
            border-radius: 8px;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .gz-feature-item:hover {
            background-color: rgba(8, 112, 245, 0.05);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .gz-feature-item img {
            align-self: center; 
            object-fit: contain; 
            margin-right: 12px;
        }
        
        .gz-feature-item p {
            font-size: 0.95rem;
            color: #555;
            line-height: 1.5;
        }



.gz-hero-cta {
            display: flex;
            gap: 15px;
        }
        
        .gz-cta-button {
            display: inline-block;
            padding: 12px 25px;
            border-radius: 4px;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .gz-cta-primary {
            background-color: var(--brand-primary);
            color: white;
        }
        
        .gz-cta-primary:hover {
            background-color: var(--brand-primary-hover);
            transform: translateY(-2px);
        }
        
        .gz-cta-secondary {
            border: 1px solid var(--brand-primary);
            color: var(--brand-primary);
            background-color: transparent;
        }
        
        .gz-cta-secondary:hover {
            background-color: #f0f9ff;
            transform: translateY(-2px);
        }



.gz-hero-image {
            flex: 0 0 auto;
            width: 650px; 
            height: 395px; 
            transition: all 0.3s ease;
        }
        
        .gz-hero-image img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            display: block;
        }
        
        .gz-hero-image:hover {
            transform: scale(1.02);
        }



@media (max-width: 1200px) {
            .gz-hero-content {
                flex: 0 0 45%;
                padding-right: 30px;
            }
            
            .gz-hero-image {
                width: 550px;
                height: 334px; 
            }
        }
        
        @media (max-width: 992px) {
            .gz-hero-container {
                flex-direction: column;
            }
            
            .gz-hero-content {
                flex: 1;
                width: 100%;
                padding-right: 0;
                margin-bottom: 40px;
                text-align: center;
            }



.gz-feature-item {
                flex-direction: column;
                align-items: center;
                text-align: center;
                max-width: 200px;
            }
            
            .gz-feature-item img {
                margin-right: 0;
                margin-bottom: 10px;
            }
            
            .gz-hero-cta {
                justify-content: center;
            }
            
            .gz-hero-image {
                width: 100%;
                height: auto;
                max-width: 650px;
                max-height: 395px;
            }
        }
        
        @media (max-width: 576px) {
            .gz-hero {
                padding: 40px 0;
            }
            
            .gz-hero-title {
                font-size: 1.8rem;
            }
            
            .gz-hero-subtitle {
                font-size: 1rem;
            }



.gz-hero-cta {
                flex-direction: column;
                align-items: center;
            }
            
            .gz-cta-button {
                width: 100%;
                text-align: center;
            }
        }



.ph-ip-intro {
            background-color: #fff;
            padding: 80px 0;
            position: relative;
        }
        
        .ph-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }



.ph-overview {
            display: flex;
            align-items: center;
            gap: 60px;
        }
        
        .ph-overview-content {
            flex: 1;
        }



.ph-overview-image {
        flex: 1;
        min-width: 500px;
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: visible; 
        position: relative;
    }



.ph-product-img {
        width: auto; 
        height: auto; 
        max-width: 100%; 
        max-height: 560px; 
        border-radius: 12px; 
        box-shadow: 0 10px 30px rgba(8, 112, 245, 0.15);
        transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        object-fit: contain;
    }



.ph-product-img:hover {
        transform: scale(1.03);
        box-shadow: 0 15px 40px rgba(8, 112, 245, 0.25);
    }



.ph-section-title {
            font-size: 2.5rem;
            font-weight: 700;
            color: #333;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .ph-section-subtitle {
            font-size: 1.2rem;
            color: #666;
            margin-bottom: 30px;
            line-height: 1.6;
        }



.ph-highlights {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 30px;
        }
        
        .ph-highlight-item {
            display: flex;
            align-items: center;
            padding: 12px 20px;
            background-color: rgba(8, 112, 245, 0.08);
            border-radius: 8px;
            transition: all 0.3s;
        }
        
        .ph-highlight-item:hover {
            background-color: rgba(8, 112, 245, 0.15);
            transform: translateY(-3px);
        }
        
        .ph-icon {
            color: var(--brand-primary);
            font-size: 1.2rem;
            margin-right: 10px;
            width: 24px;
            text-align: center;
        }
        
        .ph-highlight-item span {
            font-size: 1rem;
            font-weight: 500;
            color: #333;
        }



.ph-desc {
            font-size: 1rem;
            color: #555;
            line-height: 1.8;
            margin-bottom: 30px;
        }



@media (max-width: 1024px) {
            .ph-overview {
                flex-direction: column;
                gap: 40px;
            }
            
            .ph-overview-image {
                min-width: 100%;
                height: 350px;
            }
            
            .ph-section-title {
                font-size: 2.2rem;
            }
        }
        
        @media (max-width: 768px) {
            .ph-ip-intro {
                padding: 60px 0;
            }
            
            .ph-highlights {
                flex-direction: column;
            }
            
            .ph-section-title {
                font-size: 1.8rem;
            }
            
            .ph-section-subtitle {
                font-size: 1.1rem;
            }
            
            .ph-overview-image {
                height: 280px;
            }
        }
        
        @media (max-width: 480px) {
            .ph-ip-intro {
                padding: 40px 0;
            }
            
            .ph-section-title {
                font-size: 1.6rem;
            }
            
            .ph-section-subtitle {
                font-size: 1rem;
            }
            
            .ph-overview-image {
                height: 220px;
            }
        }



.ph-features {
            background-color: #fff;
            padding: 80px 0;
            position: relative;
        }
        
        .ph-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }



.ph-section-title {
            font-size: 2.5rem;
            font-weight: 700;
            color: #333;
            text-align: center;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        
        .ph-section-subtitle {
            font-size: 1.2rem;
            color: #666;
            text-align: center;
            margin-bottom: 50px;
            line-height: 1.6;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }



.ph-feature-grid {
            display: grid;
    grid-template-columns: repeat(4, 1fr); 
    gap: 25px;
        }



.ph-feature-card {
            background: #fff;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            border: 1px solid rgba(8, 112, 245, 0.1);
        }
        
        .ph-feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(8, 112, 245, 0.15);
            border-color: rgba(8, 112, 245, 0.3);
        }



.ph-feature-header {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }
        
        .ph-feature-icon {
            width: 50px;
            height: 50px;
            background-color: rgba(8, 112, 245, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            color: var(--brand-primary);
            font-size: 1.2rem;
            transition: all 0.3s ease;
        }
        
        .ph-feature-card:hover .ph-feature-icon {
            background-color: rgba(8, 112, 245, 0.2);
            transform: scale(1.1);
        }
        
        .ph-feature-header h3 {
            font-size: 1.3rem;
            color: #333;
            margin: 0;
        }



.ph-feature-card p {
            color: #555;
            line-height: 1.7;
            margin-bottom: 20px;
            font-size: 0.95rem;
        }
        
        .ph-feature-list {
            list-style: none;
        }
        
        .ph-feature-list li {
            position: relative;
            padding-left: 25px;
            margin-bottom: 10px;
            color: #555;
            font-size: 0.95rem;
        }
        
        .ph-feature-list li:before {
            content: "";
            position: absolute;
            left: 0;
            top: 8px;
            width: 12px;
            height: 12px;
            background-color: var(--brand-primary);
            border-radius: 50%;
            opacity: 0.5;
        }



@media (max-width: 992px) {
            .ph-features {
                padding: 60px 0;
            }
            
            .ph-section-title {
                font-size: 2.2rem;
            }
            
            .ph-section-subtitle {
                font-size: 1.1rem;
            }
            
            .ph-feature-grid {
                gap: 20px;
            }
        }
        
        @media (max-width: 768px) {
            .ph-features {
                padding: 50px 0;
            }
            
            .ph-section-title {
                font-size: 1.8rem;
            }
            
            .ph-section-subtitle {
                font-size: 1rem;
                margin-bottom: 30px;
            }
            
            .ph-feature-card {
                padding: 25px;
            }
            
            .ph-feature-icon {
                width: 45px;
                height: 45px;
                font-size: 1.1rem;
            }
        }
        
        @media (max-width: 576px) {
            .ph-features {
                padding: 40px 0;
            }
            
            .ph-section-title {
                font-size: 1.6rem;
            }
            
            .ph-feature-grid {
                grid-template-columns: 1fr;
            }
            
            .ph-feature-header h3 {
                font-size: 1.2rem;
            }
        }



.ph-specs {
            background-color: #f8fafd;
            padding: 80px 0;
            position: relative;
        }
        
        .ph-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }



.ph-section-title {
            font-size: 2.5rem;
            font-weight: 700;
            color: #333;
            text-align: center;
            margin-bottom: 50px;
            line-height: 1.2;
            position: relative;
        }
        
        .ph-section-title:after {
            content: "";
            display: block;
            width: 80px;
            height: 4px;
            background-color: var(--brand-primary);
            margin: 20px auto 0;
            border-radius: 2px;
        }



.ph-specs-grid {
           display: grid;
    grid-template-columns: repeat(4, 1fr); 
    gap: 25px;
        }



.ph-spec-card {
            background: #fff;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
            transition: all 0.3s ease;
            border-top: 3px solid var(--brand-primary);
        }
        
        .ph-spec-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(8, 112, 245, 0.1);
        }



.ph-spec-card h3 {
            font-size: 1.3rem;
            color: #333;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
        }
        
        .ph-spec-card h3 i {
            color: var(--brand-primary);
            margin-right: 12px;
            font-size: 1.2rem;
            width: 30px;
            height: 30px;
            background: rgba(8, 112, 245, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }



.ph-spec-card ul {
            list-style: none;
        }
        
        .ph-spec-card li {
            position: relative;
            padding-left: 25px;
            margin-bottom: 12px;
            color: #555;
            line-height: 1.6;
        }
        
        .ph-spec-card li:before {
            content: "";
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            background-color: var(--brand-primary);
            border-radius: 50%;
            opacity: 0.7;
        }



@media (max-width: 1200px) {
            .ph-specs {
                padding: 70px 0;
            }
            
            .ph-section-title {
                font-size: 2.2rem;
            }
        }
        
        @media (max-width: 992px) {
            .ph-specs-grid {
                gap: 20px;
            }
            
            .ph-spec-card {
                padding: 25px;
            }
        }
        
        @media (max-width: 768px) {
            .ph-specs {
                padding: 60px 0;
            }
            
            .ph-section-title {
                font-size: 1.8rem;
                margin-bottom: 40px;
            }
            
            .ph-spec-card h3 {
                font-size: 1.2rem;
            }
        }
        
        @media (max-width: 576px) {
            .ph-specs {
                padding: 50px 0;
            }
            
            .ph-section-title {
                font-size: 1.6rem;
            }
            
            .ph-specs-grid {
                grid-template-columns: 1fr;
            }
        }



.ph-news {
        background-color: #f8fafd;
        padding: 60px 0;
    }
    
    .ph-container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }



.ph-news-header {
        text-align: center;
        margin-bottom: 40px;
    }
    
    .ph-news-title {
        font-size: 2rem;
        font-weight: 700;
        color: #333;
        margin-bottom: 10px;
    }
    
    .ph-news-subtitle {
        font-size: 1.1rem;
        color: #666;
        max-width: 600px;
        margin: 0 auto;
    }



.ph-tabs-nav {
        display: flex;
        justify-content: center;
        margin-bottom: 30px;
        flex-wrap: nowrap; 
        overflow-x: auto;
        padding-bottom: 10px;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        gap: 10px;
    }
    
    .ph-tabs-nav::-webkit-scrollbar {
        display: none;
    }
    
    .ph-tab-btn {
        padding: 10px 20px;
        background: none;
        border: none;
        border-radius: 30px;
        font-size: 1rem;
        font-weight: 500;
        color: #666;
        cursor: pointer;
        transition: all 0.3s;
        white-space: nowrap;
        flex-shrink: 0; 
    }
    
    .ph-tab-btn.active,
    .ph-tab-btn:hover {
        background-color: rgba(8, 112, 245, 0.1);
        color: var(--brand-primary);
    }
    
    .ph-tab-btn.active {
        font-weight: 600;
    }



.ph-tab-pane {
        display: none;
    }
    
    .ph-tab-pane.active {
        display: block;
    }



.ph-news-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
        margin-bottom: 30px;
    }



.ph-news-card {
        background: #fff;
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
        transition: all 0.3s;
    }
    
    .ph-news-card:hover {
        transform: translateY(-3px);
        box-shadow: 0 5px 15px rgba(8, 112, 245, 0.1);
    }
    
    .ph-news-link {
        display: block;
        padding: 20px;
        text-decoration: none;
        color: inherit;
        height: 100%;
    }
    
    .ph-news-item-title {
        font-size: 1rem;
        font-weight: 600;
        color: #333;
        margin-bottom: 8px;
        line-height: 1.4;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    
    .ph-news-date {
        font-size: 0.85rem;
        color: #999;
        display: block;
    }



.ph-news-footer {
        text-align: center;
        margin-top: 20px;
    }
    
    .ph-more-btn {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 10px 20px;
        background-color: var(--brand-primary);
        color: white;
        border-radius: 30px;
        text-decoration: none;
        font-weight: 500;
        font-size: 0.95rem;
        transition: all 0.3s;
    }
    
    .ph-more-btn:hover {
        background-color: var(--brand-primary-hover);
        transform: translateX(3px);
    }



@media (max-width: 992px) {
        .ph-news-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    
    @media (max-width: 768px) {
        .ph-news {
            padding: 50px 0;
        }
        
        .ph-news-title {
            font-size: 1.8rem;
        }
        
        .ph-news-subtitle {
            font-size: 1rem;
        }
        
        .ph-tabs-nav {
            justify-content: flex-start;
        }
    }
    
    @media (max-width: 576px) {
        .ph-news-grid {
            grid-template-columns: 1fr;
        }
        
        .ph-news-card {
            padding: 15px;
        }
        
        .ph-news-item-title {
            font-size: 0.95rem;
        }
        
        .ph-more-btn {
            padding: 8px 16px;
            font-size: 0.9rem;
        }
    }



.ph-footer {
        background-color: #2a3142;
        color: #d1d5db;
        padding: 60px 0 0;
        font-size: 0.95rem;
        line-height: 1.6;
    }
    
    .ph-container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }



.ph-footer-main {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 40px;
        padding-bottom: 50px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }



.ph-footer-title {
        color: #fff;
        font-size: 1.1rem;
        font-weight: 600;
        margin-bottom: 20px;
        position: relative;
        padding-bottom: 10px;
    }
    
    .ph-footer-title:after {
        content: "";
        position: absolute;
        left: 0;
        bottom: 0;
        width: 40px;
        height: 2px;
        background-color: var(--brand-primary);
    }



.ph-nav-menu {
        list-style: none;
    }
    
    .ph-nav-menu li {
        margin-bottom: 10px;
    }
    
    .ph-nav-menu a {
        color: #d1d5db;
        text-decoration: none;
        transition: color 0.3s;
    }
    
    .ph-nav-menu a:hover {
        color: var(--brand-primary);
    }



.ph-product-desc p {
        margin-bottom: 15px;
        color: #d1d5db;
    }
    
    .ph-product-features {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .ph-product-features span {
        display: flex;
        align-items: center;
        gap: 5px;
        color: #d1d5db;
        font-size: 0.9rem;
    }
    
    .ph-product-features i {
        color: var(--brand-primary);
        font-size: 0.9rem;
    }



.ph-links-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 10px;
    }
    
    .ph-link-item {
        color: #d1d5db;
        text-decoration: none;
        font-size: 0.9rem;
        transition: color 0.3s;
    }
    
    .ph-link-item:hover {
        color: var(--brand-primary);
    }



.ph-contact-list {
        list-style: none;
    }
    
    .ph-contact-list li {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 12px;
    }
    
    .ph-icon {
        color: var(--brand-primary);
        width: 20px;
        text-align: center;
    }



.ph-footer-bottom {
        padding: 30px 0;
    }



.ph-disclaimer {
        margin-bottom: 20px;
    }
    
    .ph-disclaimer-content {
        display: flex;
        gap: 15px;
        background-color: rgba(255, 255, 255, 0.05);
        padding: 15px;
        border-radius: 5px;
    }
    
    .ph-icon-warning {
        color: #ff9900;
        font-size: 1.2rem;
        flex-shrink: 0;
        margin-top: 3px;
    }
    
    .ph-disclaimer-text {
        color: #a0a8b8;
        font-size: 0.85rem;
    }



.ph-legal {
        text-align: center;
    }
    
    .ph-legal-info {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: 15px;
        color: #a0a8b8;
        font-size: 0.85rem;
    }
    
    .ph-legal-info a {
        color: #a0a8b8;
        text-decoration: none;
        transition: color 0.3s;
    }
    
    .ph-legal-info a:hover {
        color: var(--brand-primary);
    }



@media (max-width: 992px) {
        .ph-footer-main {
            gap: 30px;
        }
        
        .ph-footer {
            padding-top: 50px;
        }
    }
    
    @media (max-width: 768px) {
        .ph-footer-main {
            grid-template-columns: repeat(2, 1fr);
        }
        
        .ph-footer {
            padding-top: 40px;
        }
    }
    
    @media (max-width: 576px) {
        .ph-footer-main {
            grid-template-columns: 1fr;
            gap: 30px;
        }
        
        .ph-footer-title {
            margin-bottom: 15px;
        }
        
        .ph-footer {
            padding-top: 30px;
        }
        
        .ph-disclaimer-content {
            flex-direction: column;
            gap: 10px;
        }
        
        .ph-legal-info {
            flex-direction: column;
            gap: 5px;
        }
    }



.ph-sidebar {
        position: fixed;
        right: 20px;
        bottom: 100px;
        z-index: 999;
        display: flex;
        flex-direction: column;
        gap: 15px;
    }



.ph-service-item {
        position: relative;
    }



.ph-service-link {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 50px;
        height: 50px;
        background: #fff;
        border-radius: 50%;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        transition: all 0.3s;
        font-size: 1.5rem;
        color: white;
        text-decoration: none;
    }



.ph-qq-service .ph-service-link {
        background-color: #12B7F5; 
    }



.ph-wechat-service .ph-service-link {
        background-color: #07C160; 
    }



.ph-service-link:hover {
        transform: translateY(-3px);
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
    }



.ph-service-tooltip {
        position: absolute;
        right: 60px;
        bottom: 0;
        width: 160px;
        background: #fff;
        border-radius: 8px;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s;
        z-index: 1000;
        padding: 15px;
        text-align: center;
    }



.ph-service-item:hover .ph-service-tooltip {
        opacity: 1;
        visibility: visible;
    }

    .ph-service-item:focus-within .ph-service-tooltip {
        opacity: 1;
        visibility: visible;
    }



.ph-tooltip-content {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    
    .ph-tooltip-title {
        font-size: 1rem;
        font-weight: 600;
        color: #333;
        margin-bottom: 5px;
    }
    
    .ph-tooltip-qq {
        font-size: 1.1rem;
        font-weight: 700;
        color: #12B7F5;
    }
    
    .ph-tooltip-text {
        font-size: 0.9rem;
        color: #666;
    }



.ph-consult-btn {
        display: block;
        padding: 8px 0;
        background: #12B7F5;
        color: white;
        border-radius: 4px;
        text-decoration: none;
        font-size: 0.9rem;
        transition: background 0.3s;
    }
    
    .ph-consult-btn:hover {
        background: #0e9fd8;
    }



.ph-wechat-qrcode {
        width: 100%;
        height: auto;
        border-radius: 4px;
    }



.ph-back-to-top {
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s;
    }
    
    .ph-back-to-top a {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 50px;
        height: 50px;
        background: #fff;
        border-radius: 50%;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        transition: all 0.3s;
        color: #666;
        font-size: 1.2rem;
    }
    
    .ph-back-to-top a:hover {
        transform: translateY(-3px);
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
    }
    
    .ph-back-to-top.show {
        opacity: 1;
        visibility: visible;
    }



@media (max-width: 768px) {
        .ph-sidebar {
            right: 10px;
            bottom: 80px;
        }
        
        .ph-service-link, .ph-back-to-top a {
            width: 45px;
            height: 45px;
            font-size: 1.3rem;
        }
        
        .ph-back-to-top a {
            font-size: 1.1rem;
        }
        
        .ph-service-tooltip {
            right: 50px;
            width: 140px;
        }
    }



.price-section {
        --price-navy: #1f2d3d;
        --price-navy-2: #26384c;
        --price-blue: var(--brand-primary);
        --price-blue-dark: #096dd9;
        --price-green: #16c784;
        --price-red: #ff4d4f;
        --price-text: #263238;
        --price-muted: #6b7785;
        --price-line: #d8e0ea;
        --price-soft: #f3f6fa;
        --price-blue-soft: #eef7ff;
        --price-green-soft: #edfbf5;
        padding: 54px 0 64px;
        background: #f1f4f8;
        color: var(--price-text);
    }

    .price-container {
        max-width: 1120px;
        margin: 0 auto;
        padding: 0 18px;
    }

    .price-hero {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        padding: 24px 28px;
        background: var(--price-navy);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-left: 4px solid var(--price-green);
        border-radius: 8px;
        box-shadow: 0 12px 28px rgba(31, 45, 61, 0.16);
    }

    .price-hero-copy {
        min-width: 0;
    }

    .price-kicker {
        display: inline-flex;
        align-items: center;
        color: #78e0b4;
        font-size: 13px;
        font-weight: 700;
        margin-bottom: 8px;
    }

    .price-kicker:before {
        content: "";
        width: 8px;
        height: 8px;
        margin-right: 8px;
        border-radius: 50%;
        background: var(--price-green);
        box-shadow: 0 0 0 4px rgba(22, 199, 132, 0.18);
    }

    .price-section-title {
        font-size: 28px;
        line-height: 1.25;
        font-weight: 700;
        color: #fff;
        margin: 0 0 8px;
    }

    .price-section-subtitle {
        max-width: 620px;
        font-size: 15px;
        color: #c8d3df;
        margin: 0;
    }

    .price-btn,
    .price-row-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 7px;
        min-height: 36px;
        padding: 8px 16px;
        color: #fff;
        background: var(--price-blue);
        border: 1px solid var(--price-blue);
        border-radius: 4px;
        text-decoration: none;
        font-size: 14px;
        font-weight: 600;
        line-height: 1;
        white-space: nowrap;
        transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
    }

    .price-btn:hover,
    .price-row-btn:hover {
        color: #fff;
        background: var(--price-blue-dark);
        border-color: var(--price-blue-dark);
        box-shadow: 0 8px 18px rgba(8, 112, 245, 0.22);
        transform: translateY(-1px);
    }

    .price-hero-btn {
        flex: 0 0 auto;
        min-width: 118px;
        background: var(--price-green);
        border-color: var(--price-green);
    }

    .price-hero-btn:hover {
        background: #10b876;
        border-color: #10b876;
        box-shadow: 0 8px 18px rgba(22, 199, 132, 0.22);
    }

    .price-toolbar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        margin-top: 16px;
        padding: 12px;
        background: #fff;
        border: 1px solid var(--price-line);
        border-radius: 8px;
    }

    .price-tabs {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }

    .price-tab {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 32px;
        padding: 6px 14px;
        color: var(--price-navy);
        background: #fff;
        border: 1px solid var(--price-line);
        border-radius: 4px;
        font-size: 14px;
        font-weight: 600;
        cursor: pointer;
        transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
    }

    .price-tab:hover {
        color: var(--price-blue);
        border-color: #9dd2ff;
        background: var(--price-blue-soft);
    }

    .price-tab.is-active {
        color: #fff;
        background: var(--price-blue);
        border-color: var(--price-blue);
    }

    .price-summary-item.is-hidden,
    .price-table tbody tr.is-hidden,
    .price-summary-item[hidden],
    .price-table tbody tr[hidden] {
        display: none !important;
    }

    .price-notice {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        min-height: 32px;
        padding: 6px 12px;
        color: #d9363e;
        background: #fff5f5;
        border: 1px solid #ffd1d1;
        border-radius: 4px;
        font-size: 13px;
        font-weight: 600;
        white-space: nowrap;
    }

    .price-summary {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 14px;
        margin-top: 16px;
    }

    .price-summary-item {
        display: flex;
        align-items: center;
        gap: 12px;
        min-height: 74px;
        padding: 16px;
        background: #fff;
        border: 1px solid var(--price-line);
        border-radius: 8px;
    }

    .price-summary-item i {
        width: 38px;
        height: 38px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: var(--price-blue);
        background: var(--price-blue-soft);
        border-radius: 8px;
        font-size: 16px;
        flex: 0 0 auto;
    }

    .price-summary-item:nth-child(2) i {
        color: var(--price-green);
        background: var(--price-green-soft);
    }

    .price-summary-item strong,
    .price-summary-item span {
        display: block;
    }

    .price-summary-item strong {
        color: var(--price-navy);
        font-size: 16px;
        line-height: 1.2;
    }

    .price-summary-item span {
        margin-top: 5px;
        color: var(--price-muted);
        font-size: 13px;
    }

    .price-table-panel {
        margin-top: 16px;
        background: #fff;
        border: 1px solid var(--price-line);
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 8px 22px rgba(31, 45, 61, 0.08);
    }

    .price-table-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        min-height: 50px;
        padding: 13px 16px;
        background: #fbfcfe;
        border-bottom: 1px solid var(--price-line);
    }

    .price-table-heading {
        display: inline-flex;
        align-items: center;
        gap: 9px;
        color: var(--price-navy);
        font-size: 16px;
        font-weight: 700;
    }

    .price-table-heading i {
        color: var(--price-green);
    }

    .price-table-meta {
        color: var(--price-muted);
        font-size: 13px;
        white-space: nowrap;
    }

    .price-table-wrap {
        width: 100%;
        overflow-x: auto;
    }

    .price-table {
        width: 100%;
        min-width: 960px;
        border-collapse: collapse;
    }

    .price-table th,
    .price-table td {
        text-align: left;
        vertical-align: middle;
        border-bottom: 1px solid #e6ecf2;
    }

    .price-table th {
        padding: 12px 14px;
        color: var(--price-navy);
        background: #f6f8fb;
        font-size: 14px;
        font-weight: 700;
        white-space: nowrap;
    }

    .price-table td {
        padding: 14px;
        color: #3d4b5c;
        font-size: 14px;
    }

    .price-table tbody tr {
        transition: background-color 0.2s ease;
    }

    .price-table tbody tr:hover {
        background: #f7fbff;
    }

    .price-table tbody tr:last-child td {
        border-bottom: 0;
    }

    .price-plan {
        display: inline-flex;
        align-items: center;
        gap: 7px;
        color: var(--price-navy);
        font-weight: 700;
        white-space: nowrap;
    }

    .price-plan:before {
        content: "";
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--price-green);
    }

    .price-table tr[data-plan="l2tp"] .price-plan:before {
        background: var(--price-blue);
    }

    .price-area,
    .price-band {
        display: inline-flex;
        align-items: center;
        min-height: 26px;
        padding: 4px 9px;
        border-radius: 4px;
        font-size: 13px;
        font-weight: 600;
        white-space: nowrap;
    }

    .price-area {
        color: #0f6fbd;
        background: var(--price-blue-soft);
        border: 1px solid #c8e6ff;
    }

    .price-band {
        color: #0d8f60;
        background: var(--price-green-soft);
        border: 1px solid #c8f1df;
    }

    .price-band-fixed {
        color: #5c6470;
        background: #f2f5f8;
        border-color: #dde5ee;
    }

    .price-old {
        margin-right: 6px;
        color: #8b97a6;
        text-decoration: line-through;
        white-space: nowrap;
    }

    .price-now {
        color: var(--price-navy);
        font-size: 15px;
        font-weight: 800;
        white-space: nowrap;
    }

    .price-desc {
        min-width: 260px;
        color: #4c5b6c;
        line-height: 1.55;
    }

    .price-row-btn {
        min-width: 64px;
        min-height: 32px;
        padding: 7px 12px;
        font-size: 13px;
    }

    @media (max-width: 992px) {
        .price-section {
            padding: 42px 0 52px;
        }

        .price-hero,
        .price-toolbar {
            align-items: flex-start;
            flex-direction: column;
        }

        .price-notice {
            white-space: normal;
        }

        .price-summary {
            grid-template-columns: 1fr;
        }
    }

    @media (max-width: 720px) {
        .price-container {
            padding: 0 12px;
        }

        .price-hero {
            padding: 20px;
        }

        .price-section-title {
            font-size: 24px;
        }

        .price-hero-btn {
            width: 100%;
        }

        .price-table {
            min-width: 0;
        }

        .price-table thead {
            display: none;
        }

        .price-table,
        .price-table tbody,
        .price-table tr,
        .price-table td {
            display: block;
            width: 100%;
        }

        .price-table tbody {
            padding: 10px;
            background: #f6f8fb;
        }

        .price-table tr {
            margin-bottom: 10px;
            background: #fff;
            border: 1px solid var(--price-line);
            border-radius: 8px;
            overflow: hidden;
        }

        .price-table tr:last-child {
            margin-bottom: 0;
        }

        .price-table td {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            min-height: 44px;
            padding: 11px 12px;
            border-bottom: 1px solid #eef2f6;
            text-align: right;
        }

        .price-table td:before {
            content: attr(data-label);
            color: var(--price-muted);
            font-size: 13px;
            font-weight: 700;
            text-align: left;
            white-space: nowrap;
        }

        .price-table td:last-child {
            border-bottom: 0;
        }

        .price-desc {
            min-width: 0;
            text-align: right;
        }

        .price-row-btn {
            width: auto;
        }
    }

    @media (max-width: 480px) {
        .price-section {
            padding: 32px 0 42px;
        }

        .price-toolbar {
            padding: 10px;
        }

        .price-tabs,
        .price-tab {
            width: 100%;
        }

        .price-tab {
            justify-content: center;
        }

        .price-table-header {
            align-items: flex-start;
            flex-direction: column;
            gap: 6px;
        }
    }



.bangzhu-help-center {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        color: #333;
        line-height: 1.6;
    }



.bangzhu-header {
        background-color: var(--brand-primary);
        color: white;
        padding: 60px 0 40px;
        margin-bottom: 30px;
    }

    .bangzhu-header-content {
        text-align: center;
    }
    
    .bangzhu-container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }
    
    .bangzhu-main-title {
        font-size: 2.5rem;
        font-weight: 700;
        margin-bottom: 10px;
    }
    
    .bangzhu-subtitle {
        font-size: 1.2rem;
        opacity: 0.9;
    }



.bangzhu-main-container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }



.bangzhu-top-bar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 30px;
        flex-wrap: wrap;
        gap: 20px;
    }



.bangzhu-breadcrumb {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 5px;
    }
    
    .bangzhu-breadcrumb-item {
        color: var(--brand-primary);
        text-decoration: none;
        font-size: 0.95rem;
    }
    
    .bangzhu-breadcrumb-item:hover {
        text-decoration: underline;
    }
    
    .bangzhu-breadcrumb-separator {
        color: #666;
        font-size: 0.95rem;
    }



.bangzhu-search-form {
        flex: 1;
        min-width: 250px;
        max-width: 400px;
    }
    
    .bangzhu-search-wrapper {
        position: relative;
        display: flex;
    }
    
    .bangzhu-search-input {
        flex: 1;
        padding: 10px 15px;
        border: 1px solid #ddd;
        border-radius: 4px 0 0 4px;
        font-size: 0.95rem;
        outline: none;
        transition: all 0.3s;
    }
    
    .bangzhu-search-input:focus {
        border-color: var(--brand-primary);
        box-shadow: 0 0 0 2px rgba(8, 112, 245, 0.2);
    }
    
    .bangzhu-search-button {
        padding: 0 20px;
        background: var(--brand-primary);
        color: white;
        border: none;
        border-radius: 0 4px 4px 0;
        cursor: pointer;
        transition: all 0.3s;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .bangzhu-search-button:hover {
        background: var(--brand-primary-hover);
    }
    
    .bangzhu-search-icon {
        margin-right: 8px;
    }



.bangzhu-subnav-container {
        margin-bottom: 30px;
        border-bottom: 1px solid #eee;
    }
    
    .bangzhu-subnav {
        display: flex;
        list-style: none;
        flex-wrap: wrap;
        gap: 5px;
        padding: 0;
        margin: 0 -5px 0 0;
    }
    
    .bangzhu-subnav-item {
        margin: 0;
    }
    
    .bangzhu-subnav-link {
        display: block;
        padding: 8px 20px;
        color: #666;
        text-decoration: none;
        border-radius: 4px 4px 0 0;
        transition: all 0.3s;
        font-size: 0.95rem;
    }
    
    .bangzhu-subnav-item.active .bangzhu-subnav-link,
    .bangzhu-subnav-link:hover {
        color: var(--brand-primary);
        background-color: rgba(8, 112, 245, 0.1);
    }
    
    .bangzhu-subnav-item.active .bangzhu-subnav-link {
        font-weight: 500;
        border-bottom: 2px solid var(--brand-primary);
    }



.bangzhu-list {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 30px;
        margin-bottom: 50px;
    }
    
    .bangzhu-item {
        background: white;
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        transition: all 0.3s;
    }
    
    .bangzhu-item:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    }
    
    .bangzhu-item-link {
        text-decoration: none;
        color: inherit;
        display: block;
        height: 100%;
    }



.bangzhu-thumb-container {
        position: relative;
        padding-top: 56.25%; 
        background-color: #f5f5f5;
    }
    
    .bangzhu-thumb-wrapper {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .bangzhu-thumb {
        max-width: 100%;
        max-height: 100%;
        width: auto;
        height: auto;
        object-fit: contain;
    }
    
    .bangzhu-no-image {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #999;
        background-color: #f5f5f5;
    }
    
    .bangzhu-no-image-icon {
        font-size: 2rem;
        opacity: 0.3;
    }



.bangzhu-content {
        padding: 20px;
    }
    
    .bangzhu-meta {
        display: flex;
        align-items: center;
        margin-bottom: 10px;
        font-size: 0.85rem;
        color: #666;
    }
    
    .bangzhu-date {
        margin-right: 15px;
        display: flex;
        align-items: center;
    }
    
    .bangzhu-views {
        display: flex;
        align-items: center;
    }
    
    .bangzhu-meta-icon {
        margin-right: 5px;
        font-size: 0.9rem;
    }
    
    .bangzhu-title {
        font-size: 1.1rem;
        font-weight: 600;
        margin-bottom: 10px;
        color: #333;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    
    .bangzhu-desc {
        font-size: 0.9rem;
        color: #666;
        margin-bottom: 15px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    
    .bangzhu-more {
        color: var(--brand-primary);
        font-size: 0.9rem;
        font-weight: 500;
        display: inline-flex;
        align-items: center;
    }
    
    .bangzhu-more-icon {
        margin-left: 5px;
        font-size: 0.8rem;
    }



.bangzhu-pagination-wrapper {
        margin: 40px 0 60px;
        text-align: center;
    }
    
    .bangzhu-pagination {
        display: inline-block;
    }
    
    .bangzhu-pagination-list {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
        gap: 8px;
        list-style: none;
        padding: 0;
        margin: 0;
    }
    
    .bangzhu-pagination-list li {
        margin: 0;
        display: inline-block;
    }
    
    .bangzhu-pagination-list a,
    .bangzhu-pagination-list strong {
        display: inline-block;
        min-width: 36px;
        padding: 8px 12px;
        border-radius: 4px;
        text-align: center;
        text-decoration: none;
        font-size: 0.95rem;
        transition: all 0.3s;
        border: 1px solid #e0e0e0;
        color: var(--brand-primary);
        background: white;
    }
    
    .bangzhu-pagination-list a:hover {
        background: #e6f7ff;
        border-color: #bae7ff;
    }
    
    .bangzhu-pagination-list strong,
    .bangzhu-pagination-list .active a {
        background: var(--brand-primary);
        color: white;
        border-color: var(--brand-primary);
        font-weight: 500;
    }



@media (max-width: 992px) {
        .bangzhu-header {
            padding: 50px 0 30px;
        }
        
        .bangzhu-main-title {
            font-size: 2.2rem;
        }
        
        .bangzhu-subtitle {
            font-size: 1.1rem;
        }
        
        .bangzhu-list {
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }
    }
    
    @media (max-width: 768px) {
        .bangzhu-header {
            padding: 40px 0 25px;
        }
        
        .bangzhu-main-title {
            font-size: 2rem;
        }
        
        .bangzhu-top-bar {
            flex-direction: column;
            align-items: flex-start;
            gap: 15px;
        }
        
        .bangzhu-search-form {
            width: 100%;
            max-width: 100%;
        }
        
        .bangzhu-subnav {
            overflow-x: auto;
            white-space: nowrap;
            padding-bottom: 5px;
            -webkit-overflow-scrolling: touch;
        }
        
        .bangzhu-subnav::-webkit-scrollbar {
            display: none;
        }
        
        .bangzhu-list {
            grid-template-columns: 1fr;
        }
    }
    
    @media (max-width: 576px) {
        .bangzhu-header {
            padding: 30px 0 20px;
        }
        
        .bangzhu-main-title {
            font-size: 1.8rem;
        }
        
        .bangzhu-subtitle {
            font-size: 1rem;
        }
        
        .bangzhu-content {
            padding: 15px;
        }
        
        .bangzhu-title {
            font-size: 1rem;
        }
    }



.neirong-wrapper {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        color: #333;
        line-height: 1.8;
        
        padding: 0 20px;
    }
    
    .neirong-container {
        max-width: 1200px;
        margin: 0 auto;
        background: #fff;
        border-radius: 8px;
        box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
        padding: 40px;
    }



.neirong-breadcrumb {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        margin-bottom: 25px;
        font-size: 0.95rem;
    }
    
    .neirong-breadcrumb-item {
        color: var(--brand-primary);
        text-decoration: none;
        transition: all 0.3s;
    }
    
    .neirong-breadcrumb-item:hover {
        color: var(--brand-primary-hover);
        text-decoration: underline;
    }
    
    .neirong-breadcrumb-separator {
        color: #999;
        margin: 0 8px;
    }



.neirong-title {
        font-size: 1.8rem;
        font-weight: 700;
        color: #222;
        margin-bottom: 20px;
        line-height: 1.4;
    }



.neirong-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        margin-bottom: 30px;
        padding-bottom: 20px;
        border-bottom: 1px solid #f0f0f0;
    }
    
    .neirong-meta-item {
        display: flex;
        align-items: center;
        color: #666;
        font-size: 0.95rem;
    }
    
    .neirong-meta-icon {
        margin-right: 8px;
        color: #999;
        font-size: 0.9rem;
    }



.neirong-content {
        font-size: 1rem;
        line-height: 1.8;
        color: #444;
    }
    
    .neirong-content p {
        margin-bottom: 1.5em;
    }
    
    .neirong-content img {
        max-width: 100%;
        height: auto;
        border-radius: 4px;
        margin: 20px 0;
    }
    
    .neirong-content h2,
    .neirong-content h3,
    .neirong-content h4 {
        margin: 1.5em 0 1em;
        color: #222;
        font-weight: 600;
    }
    
    .neirong-content h2 {
        font-size: 1.5rem;
        border-bottom: 1px solid #f0f0f0;
        padding-bottom: 10px;
    }
    
    .neirong-content h3 {
        font-size: 1.3rem;
    }
    
    .neirong-content h4 {
        font-size: 1.1rem;
    }
    
    .neirong-content a {
        color: var(--brand-primary);
        text-decoration: none;
    }
    
    .neirong-content a:hover {
        text-decoration: underline;
    }
    
    .neirong-content ul,
    .neirong-content ol {
        margin: 1em 0;
        padding-left: 2em;
    }
    
    .neirong-content li {
        margin-bottom: 0.5em;
    }
    
    .neirong-content blockquote {
        border-left: 4px solid var(--brand-primary);
        background: #f8fafd;
        padding: 15px 20px;
        margin: 20px 0;
        color: #555;
    }



.neirong-tags {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        margin: 40px 0;
        padding-top: 20px;
        border-top: 1px solid #f0f0f0;
    }
    
    .neirong-tags-label {
        display: flex;
        align-items: center;
        margin-right: 15px;
        color: #666;
        font-size: 0.95rem;
    }
    
    .neirong-tags-icon {
        margin-right: 8px;
        font-size: 0.9rem;
    }
    
    .neirong-tags-list {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .neirong-tag-item {
        display: inline-block;
        padding: 5px 12px;
        background: #f5f5f5;
        color: #555;
        border-radius: 15px;
        font-size: 0.85rem;
        text-decoration: none;
        transition: all 0.3s;
    }
    
    .neirong-tag-item:hover {
        background: #e6f7ff;
        color: var(--brand-primary);
    }



.neirong-navigation {
        display: flex;
        justify-content: space-between;
        margin-top: 50px;
        padding-top: 30px;
        border-top: 1px solid #f0f0f0;
    }
    
    .neirong-nav-prev,
    .neirong-nav-next {
        flex: 1;
        min-width: 0;
    }
    
    .neirong-nav-prev {
        padding-right: 15px;
    }
    
    .neirong-nav-next {
        padding-left: 15px;
        text-align: right;
    }
    
    .neirong-nav-label {
        display: flex;
        align-items: center;
        color: #999;
        font-size: 0.9rem;
        margin-bottom: 8px;
    }
    
    .neirong-nav-prev .neirong-nav-label {
        justify-content: flex-start;
    }
    
    .neirong-nav-next .neirong-nav-label {
        justify-content: flex-end;
    }
    
    .neirong-nav-icon {
        margin: 0 5px;
        font-size: 0.8rem;
    }
    
    .neirong-nav-link {
        display: block;
        color: var(--brand-primary);
        text-decoration: none;
        font-size: 0.95rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        transition: all 0.3s;
    }
    
    .neirong-nav-link:hover {
        color: var(--brand-primary-hover);
        text-decoration: underline;
    }



@media (max-width: 992px) {
        .neirong-container {
            padding: 30px;
        }
        
        .neirong-title {
            font-size: 1.6rem;
        }
    }
    
    @media (max-width: 768px) {
        .neirong-wrapper {
          
            padding: 0 15px;
        }
        
        .neirong-container {
            padding: 25px;
            border-radius: 6px;
        }
        
        .neirong-title {
            font-size: 1.4rem;
        }
        
        .neirong-meta {
            gap: 15px;
        }
        
        .neirong-content {
            font-size: 0.95rem;
        }
        
        .neirong-content h2 {
            font-size: 1.3rem;
        }
        
        .neirong-content h3 {
            font-size: 1.1rem;
        }
        
        .neirong-navigation {
            flex-direction: column;
            gap: 20px;
        }
        
        .neirong-nav-prev,
        .neirong-nav-next {
            padding: 0;
            text-align: left;
        }
        
        .neirong-nav-next {
            text-align: left;
        }
    }
    
    @media (max-width: 576px) {
        .neirong-wrapper {
       
            padding: 0 10px;
        }
        
        .neirong-container {
            padding: 20px;
            border-radius: 4px;
        }
        
        .neirong-title {
            font-size: 1.3rem;
        }
        
        .neirong-meta {
            flex-direction: column;
            gap: 10px;
        }
        
        .neirong-content {
            font-size: 0.9rem;
        }
        
        .neirong-content h2 {
            font-size: 1.2rem;
        }
        
        .neirong-tags {
            flex-direction: column;
            align-items: flex-start;
        }
        
        .neirong-tags-label {
            margin-bottom: 10px;
        }
    }

@supports (content-visibility: auto) {
    .ph-ip-intro,
    .ph-features,
    .ph-specs,
    .ph-news {
        content-visibility: auto;
        contain-intrinsic-size: auto 720px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}



/* Local content and accessible interactions; reference component geometry retained. */
.ph-ip-intro,.ph-features,.ph-specs,.ph-news{content-visibility:visible!important}.gz-hero-subtitle{min-height:56.32px}@media(min-width:1025px){.ph-overview{min-height:560px}}
.gz-logo img{width:140px;height:50px;object-fit:contain}.ph-contact-list a,.ph-legal-info>a{color:inherit;text-decoration:none}.filing-icon{vertical-align:middle;margin-right:5px}.ph-legal-info{flex-wrap:wrap;gap:12px}.footer-wechat{border:0;background:none;color:#d1d5db;cursor:pointer;font-size:15.2px;margin-top:6px}.footer-wechat:hover{color:#fff}.ph-service-link{border:0;cursor:pointer}.ph-sidebar{bottom:100px}.contact-dialog{border:0;border-radius:8px;padding:32px;max-width:calc(100% - 32px);width:340px;text-align:center;margin:auto;color:#2a3441;box-shadow:0 10px 40px #0004}.contact-dialog h2{font-size:22px;margin:0 0 20px}.contact-dialog p{margin:16px 0}.contact-dialog img{display:block;width:256px;max-width:100%;height:auto;margin:0 auto}.contact-dialog::backdrop,.image-dialog::backdrop{background:#0009}.dialog-close{position:absolute;right:8px;top:3px;font-size:30px;background:#fff;border:0;border-radius:4px;padding:0 7px;cursor:pointer;color:#555}.image-dialog{border:0;padding:38px 14px 14px;max-width:96vw;max-height:94vh;margin:auto;overflow:auto;border-radius:6px}.image-dialog>img{max-width:calc(96vw - 28px);max-height:calc(94vh - 100px);width:auto;height:auto;display:block;margin:auto}.image-caption{text-align:center;font-size:14px;margin-top:10px}.tutorial-figure{margin:30px 0}.tutorial-figure img{width:auto;max-width:100%;height:auto;display:block;cursor:zoom-in;border:1px solid #e7ebf0;border-radius:4px}.tutorial-figure figcaption{font-size:14px;color:#777;margin-top:8px}.neirong-content code{overflow-wrap:anywhere;background:#f5f7fa;padding:2px 4px}.neirong-content h2{scroll-margin-top:90px}.bangzhu-subnav-link{border:0;background:none;cursor:pointer}.empty-state{padding:28px 0;color:#777}.result-count{display:block;padding:8px 12px;border:1px solid #ddd;border-radius:3px}.neirong-navigation{justify-content:space-between}.bangzhu-thumb{height:206px;object-fit:contain}.ph-feature-card,.ph-spec-card{height:100%}
@media(max-width:576px){.gz-logo img{height:40px}.gz-hero-image{height:262.5px;max-height:none}.gz-hero-features{min-height:258px}.gz-feature-item{width:100%}.ph-sidebar{right:10px;bottom:65px}.ph-legal-info{flex-direction:column;align-items:center}.ph-contact-list a{overflow-wrap:anywhere}.neirong-breadcrumb{gap:8px}.neirong-navigation{gap:18px}.bangzhu-search-form{max-width:100%}.bangzhu-subnav-link{white-space:nowrap}.tutorial-figure{margin:22px 0}}

.gz-logo img{height:auto;margin-left:-8px}.gz-hero-subtitle{min-height:0}@media(min-width:993px){.gz-hero-subtitle{min-height:56.32px}}

.image-zoom{position:sticky;top:0;display:block;border:1px solid #d5dce5;border-radius:4px;background:#fff;padding:5px 10px;margin:0 0 12px;cursor:pointer;color:#0870f5}.image-dialog.is-zoomed{width:96vw;height:94vh}.image-dialog.is-zoomed>img{max-width:none;max-height:none;width:auto;height:auto;margin:0}.image-dialog .dialog-close{position:fixed;right:calc(2vw + 8px);top:calc(3vh + 3px);z-index:2}

@media(max-width:720px){.page-pricing .ph-sidebar,.page-getting-started .ph-sidebar{display:none}}

@media(max-width:1024px){.ph-overview-image{height:auto}.ph-product-img{width:auto;max-width:100%;max-height:560px}}

@media(max-width:720px){.page-index .ph-sidebar{display:none}}