:root {
            --aucopack-font-primary: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, Arial, sans-serif;
            --aucopack-font-secondary: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, Arial, sans-serif;
            
            --aucopack-color-text-main: #1c1c1c;
            --aucopack-color-text-muted: #525252;
            --aucopack-color-bg: #ffffff;
            --aucopack-color-nav-border: #e5e5e5;
            --aucopack-color-nav-hover: #db5b68; 
            --aucopack-color-dot-inactive: #d4d4d8;
            --aucopack-color-dot-track: #e5e5e5;
            --aucopack-color-dot-active: #18181b;
            
            --aucopack-transition-speed: 0.6s;
            --aucopack-slide-duration: 5s; 
        }

        /* REMOVED GLOBAL SELECTORS: *, body */
        
        /* 
         * ISOLATION WRAPPER: 
         * Apply reset and base styles only within our specific wrapper 
         * to prevent polluting the rest of the website.
         */
        .aucopack-integration-wrapper {
            font-family: var(--aucopack-font-primary);
            color: var(--aucopack-color-text-main);
            line-height: 1.5;
            -webkit-font-smoothing: antialiased;
        }

        .aucopack-integration-wrapper *,
        .aucopack-integration-wrapper *::before,
        .aucopack-integration-wrapper *::after {
            box-sizing: border-box;
        }
        
        /* Reset margins/padding only for elements inside our wrapper that usually need it */
        .aucopack-integration-wrapper h1, 
        .aucopack-integration-wrapper h3, 
        .aucopack-integration-wrapper p, 
        .aucopack-integration-wrapper button {
            margin: 0;
            padding: 0;
        }


        /* --- Top Module: Packaging Style Carousel --- */
        .packaging-style-module {
            box-sizing: border-box;
            font-family: var(--aucopack-font-primary);
            color: #111827;
            width: 100%;
            max-width: 1360px;
            margin: 40px auto; 
            background-color: transparent;
            border-radius: 24px;
            overflow: hidden;
            padding: 0 24px;
        }

        .packaging-style-module *,
        .packaging-style-module *::before,
        .packaging-style-module *::after {
            box-sizing: inherit;
        }

        .packaging-style-container {
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

        .packaging-style-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 32px;
        }

        .packaging-style-header-left {
            flex: 1.2;
        }

        .packaging-style-title {
            font-size: clamp(2.2rem, 4.5vw, 4rem);
            font-weight: 900;
            line-height: 0.95;
            letter-spacing: -0.03em;
            color: #111111;
            text-transform: uppercase;
            margin: 0;
        }

        .packaging-style-icon-wrapper {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            vertical-align: middle;
            width: 0.85em;
            height: 0.85em;
            margin: 0 0.15em;
            position: relative;
            top: -0.06em;
        }

        .packaging-style-icon {
            width: 100%;
            height: 100%;
            filter: drop-shadow(0 2px 4px rgba(0,0,0,0.05));
            animation: pkg-spin 15s linear infinite;
        }

        @keyframes pkg-spin {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        .packaging-style-header-right {
            flex: 0.9;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 20px;
            max-width: 520px;
        }

        .packaging-style-desc {
            font-size: 0.95rem;
            line-height: 1.5;
            color: #4b5563;
            font-weight: 400;
            margin: 0;
        }

        .packaging-style-nav-group {
            display: flex;
            gap: 12px;
        }

        .packaging-style-nav-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: none;
            background-color: #18181b;
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.25s ease;
            box-shadow: 0 2px 6px rgba(0,0,0,0.08);
        }

        .packaging-style-nav-btn svg {
            width: 18px;
            height: 18px;
        }

        .packaging-style-nav-btn:disabled,
        .packaging-style-nav-btn.disabled {
            background-color: #f3f4f6; 
            color: #9ca3af;
            cursor: not-allowed;
            box-shadow: none;
        }

        .packaging-style-nav-btn:not(:disabled):hover {
            background-color: #000000;
            transform: scale(1.05);
        }

        .packaging-style-carousel {
            width: 100%;
            overflow-x: auto;
            scroll-behavior: smooth;
            scrollbar-width: none;
            -ms-overflow-style: none;
            cursor: -webkit-grab;
            cursor: grab;
            background-color: transparent;
            padding-bottom: 20px;
        }

        .packaging-style-carousel::-webkit-scrollbar {
            display: none; 
        }

        .packaging-style-carousel:active {
            cursor: -webkit-grabbing;
            cursor: grabbing;
        }

        .packaging-style-track {
            display: flex;
            gap: 20px;
            width: max-content;
        }

        .packaging-style-card {
            width: 290px;
            /* Height removed to allow content and aspect-ratio to shape it naturally */
            border-radius: 16px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            flex-shrink: 0;
            box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            background-color: #ffffff;
            user-select: none;
            /* Reset line-height that might be inherited */
            line-height: normal;
        }

        .packaging-style-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 15px 35px -5px rgba(0, 0, 0, 0.15); 
        }

        .packaging-style-card-top {
            width: 100%;
            /* 1. 强制规范图片区域为横向矩形 (aspect-ratio: 4/2.5) */
            aspect-ratio: 4 / 2.5;
            height: auto;
            padding: 0;
            margin: 0;
            overflow: hidden;
            position: relative;
            background-color: #f3f4f6;
        }

        .packaging-style-card-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: transform 0.5s ease;
        }

        .packaging-style-card:hover .packaging-style-card-image {
            transform: scale(1.05);
        }

        .packaging-style-card img, 
        .packaging-style-card-top img {
            -webkit-user-drag: none;
            -khtml-user-drag: none;
            -moz-user-drag: none;
            -o-user-drag: none;
            user-drag: none;
        }

        .packaging-style-card-bottom {
            flex-grow: 1; /* Allows bottom section to fill remaining height */
            background-color: #ffffff;
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        
        .packaging-style-author-row {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .packaging-style-avatar {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            object-fit: cover;
            background-color: #f3f4f6;
        }

        .packaging-style-spark {
            background-color: #fef08a;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
        }

        .packaging-style-author-name {
            font-size: 0.85rem;
            font-weight: 600;
            color: #111827;
        }

        .packaging-style-author-link {
            text-decoration: none;
            position: relative;
            z-index: 10; 
            display: inline-block; 
            transform-origin: left center;
            transition: transform 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        
        .packaging-style-author-link:hover {
            transform: scale(1.08);
            color: #111827;
        }

        .packaging-style-card-desc {
            font-size: 0.82rem;
            line-height: 1.6;
            color: #6b7280;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 4;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* --- Bottom Module: Interactive Features Section --- */
        .aucopack-packaging-section {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0px 0px; 
        }

        .aucopack-style-solutions-wrapper {
            display: flex;
            flex-direction: column;
            gap: 60px;
        }

        @media (min-width: 992px) {
            .aucopack-style-solutions-wrapper {
                flex-direction: row;
                align-items: center; 
                min-height: auto; 
            }
        }

        .aucopack-content-panel {
            flex: 1;
            max-width: 480px;
            display: flex;
            flex-direction: column;
            position: relative;
            z-index: 10;
        }

        .aucopack-slides-manager {
            position: relative;
            display: grid;
            grid-template-columns: 1fr;
            grid-template-rows: 1fr;
            min-height: 380px;
        }

        .aucopack-solution-info {
            grid-column: 1;
            grid-row: 1;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: opacity var(--aucopack-transition-speed) ease, 
                        transform var(--aucopack-transition-speed) ease, 
                        visibility var(--aucopack-transition-speed);
            pointer-events: none;
            display: flex;
            flex-direction: column;
        }

        .aucopack-solution-info.active {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
            pointer-events: auto;
            z-index: 2;
        }

        .aucopack-step-indicator {
            font-size: 0.9rem;
            color: var(--aucopack-color-text-muted);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .aucopack-step-indicator::before {
            content: "";
            display: block;
            width: 16px;
            height: 1px;
            background-color: var(--aucopack-color-text-muted);
        }

        .aucopack-slide-headline {
            font-family: var(--aucopack-font-secondary);
            font-size: clamp(2rem, 3.5vw, 3rem);
            font-weight: 700;
            line-height: 1.05;
            letter-spacing: -0.02em;
            margin-bottom: 32px;
        }

        .aucopack-slide-subheadline {
            font-size: 1.25rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 16px;
        }

        .aucopack-slide-description {
            font-size: 1.05rem;
            color: var(--aucopack-color-text-muted);
            margin-bottom: 32px;
            line-height: 1.6;
        }

        .aucopack-interactive-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            color: var(--aucopack-color-text-main);
            text-decoration: none;
            border-bottom: 1px solid var(--aucopack-color-text-main);
            padding-bottom: 2px;
            width: fit-content;
            transition: opacity 0.2s;
        }

        .aucopack-interactive-link:hover {
            opacity: 0.7;
        }

        .aucopack-interactive-link svg {
            width: 16px;
            height: 16px;
            transition: transform 0.2s;
        }

        .aucopack-interactive-link:hover svg {
            transform: translateX(4px);
        }

        .aucopack-controls-dashboard {
            display: flex;
            flex-direction: column;
            gap: 32px;
            margin-top: auto;
            padding-top: 24px;
            position: relative;
            /* 2. Fix mobile clickability by strictly raising z-index */
            z-index: 999; 
            pointer-events: auto;
        }

        .aucopack-progress-tracker {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* The Progress Indicator (Hourglass Effect) */
        .aucopack-progress-bar {
            width: 6px;
            height: 6px;
            border-radius: 6px;
            background-color: var(--aucopack-color-dot-inactive);
            border: none;
            cursor: pointer;
            transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.4s;
            padding: 0;
            position: relative;
            overflow: visible; 
            -webkit-tap-highlight-color: transparent;
        }

        /* Invisible expanded hit area for easier mobile tapping */
        .aucopack-progress-bar::before {
            content: '';
            position: absolute;
            top: -16px;
            bottom: -16px;
            left: -12px;
            right: -12px;
            z-index: 1;
        }

        .aucopack-progress-bar.active {
            width: 48px;
            background-color: var(--aucopack-color-dot-track);
            cursor: default;
        }

        /* Animated Fill Element */
        .aucopack-progress-bar.active::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            background-color: var(--aucopack-color-dot-active);
            width: 0%;
            border-radius: 6px;
            z-index: 2;
            animation: aucopack-fill-timeline var(--aucopack-slide-duration) linear forwards;
        }

        @keyframes aucopack-fill-timeline {
            0% { width: 0%; }
            100% { width: 100%; }
        }

        .aucopack-nav-cluster {
            display: flex;
            gap: 12px;
        }

        .aucopack-directional-btn {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            border: 1px solid var(--aucopack-color-nav-border);
            background: transparent;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--aucopack-color-text-main);
            transition: all 0.2s;
            position: relative;
            z-index: 100;
        }

        .aucopack-directional-btn svg {
            width: 20px;
            height: 20px;
            stroke-width: 1.5;
        }

        .aucopack-directional-btn:hover {
            border-color: var(--aucopack-color-nav-hover);
            color: var(--aucopack-color-nav-hover);
            transform: scale(1.05);
        }

        .aucopack-visual-display {
            flex: 1.2;
            position: relative;
            display: grid;
            grid-template-columns: 1fr;
            grid-template-rows: 1fr;
            border-radius: 24px;
            overflow: hidden;
            /* 1. 强制规范图片区域为横向矩形 (aspect-ratio: 4/2.5) */
            aspect-ratio: 4 / 2.5; 
            background-color: #f9fafb;
            width: 100%;
        }

        @media (min-width: 992px) {
            .aucopack-visual-display {
                aspect-ratio: 4 / 2.5; /* Maintain horizontal rectangle on desktop */
                height: auto; 
            }
        }

        .aucopack-visual-frame {
            grid-column: 1;
            grid-row: 1;
            opacity: 0;
            transition: opacity var(--aucopack-transition-speed) ease;
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            pointer-events: none;
        }

        .aucopack-visual-frame.active {
            opacity: 1;
            z-index: 2;
            pointer-events: auto;
        }

        .aucopack-visual-frame img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transform: scale(1.04);
            transition: transform 6s ease-out;
        }

        .aucopack-visual-frame.active img {
            transform: scale(1);
        }

        /* --- Global Responsive Adjustments --- */
        @media (max-width: 768px) {
            .packaging-style-module {
                padding: 0px 0px;
                border-radius: 16px;
            }
            .packaging-style-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .packaging-style-title {
                font-size: 2.3rem;
                line-height: 1.0;
            }
            .packaging-style-card {
                width: 270px;
                /* Height adapts automatically to image ratio */
            }
            
            .aucopack-slides-manager {
                min-height: 340px; 
            }
        }