:root {
            --bg-primary: #ffffff;
            --bg-secondary: #f8f9fa;
            --bg-card: #ffffff;
            --fg-primary: #1a1a2e;
            --fg-secondary: #6b7280;
            --fg-muted: #9ca3af;
            --accent: #0066ff;
            --accent-light: #3385ff;
            --accent-dark: #0052cc;
            --accent-glow: rgba(0, 102, 255, 0.15);
            --border: rgba(0, 0, 0, 0.08);
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.1);
        }

        [data-theme="dark"] {
            --bg-primary: #0a0a0b;
            --bg-secondary: #111113;
            --bg-card: rgba(255, 255, 255, 0.03);
            --fg-primary: #fafafa;
            --fg-secondary: #a1a1aa;
            --fg-muted: #71717a;
            --accent: #d4a574;
            --accent-light: #e8c9a8;
            --accent-dark: #b8956a;
            --accent-glow: rgba(212, 165, 116, 0.15);
            --border: rgba(255, 255, 255, 0.08);
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
        }



        * {

            margin: 0;

            padding: 0;

            box-sizing: border-box;

        }



        html {

            scroll-behavior: smooth;

        }



        body {
            font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--bg-primary);
            color: var(--fg-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }

        ::-webkit-scrollbar {

            width: 8px;

        }

        ::-webkit-scrollbar-track {

            background: var(--bg-secondary);

        }

        ::-webkit-scrollbar-thumb {

            background: var(--accent);

            border-radius: 4px;

        }



        /* 粒子画布 */

        #particleCanvas {

            position: fixed;

            top: 0;

            left: 0;

            width: 100%;

            height: 100%;

            pointer-events: none;

            z-index: 0;

        }



        /* 导航栏 */

        .nav {

            position: fixed;

            top: 0;

            left: 0;

            right: 0;

            z-index: 1000;

            padding: 1rem 2rem;

            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);

        }



        .nav.scrolled {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            box-shadow: 0 1px 0 var(--border);
        }

        [data-theme="dark"] .nav.scrolled {
            background: rgba(10, 10, 11, 0.9);
        }



        .nav-inner {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }



        .logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--fg-primary);
            text-decoration: none;
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }



        .logo-icon {

            width: 36px;

            height: 36px;

            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);

            border-radius: 10px;

            display: flex;

            align-items: center;

            justify-content: center;

        }



        .logo-icon svg {

            width: 20px;

            height: 20px;

            color: white;

        }



        .nav-links {

            display: flex;

            gap: 2.5rem;

            list-style: none;

        }



        .nav-links a {

            color: var(--fg-secondary);

            text-decoration: none;

            font-size: 0.9rem;

            font-weight: 500;

            transition: color 0.3s ease;

            position: relative;

        }



        .nav-links a::after {

            content: '';

            position: absolute;

            bottom: -4px;

            left: 0;

            width: 0;

            height: 2px;

            background: var(--accent);

            transition: width 0.3s ease;

        }



        .nav-links a:hover {

            color: var(--accent);

        }



        .nav-links a:hover::after {
            width: 100%;
        }

        .theme-toggle {
            width: 44px;
            height: 44px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .theme-toggle:hover {
            border-color: var(--accent);
            transform: scale(1.05);
        }

        .theme-toggle svg {
            width: 20px;
            height: 20px;
            color: var(--fg-secondary);
            transition: all 0.3s ease;
        }

        .theme-toggle:hover svg {
            color: var(--accent);
        }

        .theme-toggle .sun-icon {
            position: absolute;
            transition: all 0.3s ease;
            opacity: 1;
            transform: rotate(0deg);
        }

        .theme-toggle .moon-icon {
            position: absolute;
            transition: all 0.3s ease;
            opacity: 0;
            transform: rotate(-90deg);
        }

        [data-theme="dark"] .theme-toggle .sun-icon {
            opacity: 0;
            transform: rotate(90deg);
        }

        [data-theme="dark"] .theme-toggle .moon-icon {
            opacity: 1;
            transform: rotate(0deg);
        }

        /* Hero区域 */

        .hero {

            min-height: 100vh;

            display: flex;

            flex-direction: column;

            justify-content: center;

            align-items: center;

            text-align: center;

            position: relative;

            overflow: hidden;

            padding: 8rem 2rem 6rem;

        }



        .hero-content {

            position: relative;

            z-index: 1;

            max-width: 900px;

        }



        .hero-badge {

            display: inline-flex;

            align-items: center;

            gap: 0.5rem;

            padding: 0.5rem 1.25rem;

            background: var(--accent-glow);

            border: 1px solid rgba(0, 102, 255, 0.2);

            border-radius: 100px;

            font-size: 0.85rem;

            color: var(--accent-dark);

            margin-bottom: 2rem;

            font-weight: 500;

        }



        .hero-badge-dot {

            width: 8px;

            height: 8px;

            background: var(--accent);

            border-radius: 50%;

            animation: pulse 2s ease-in-out infinite;

        }



        @keyframes pulse {

            0%, 100% { opacity: 1; transform: scale(1); }

            50% { opacity: 0.6; transform: scale(0.8); }

        }



        .hero-title {
            font-size: clamp(2.5rem, 7vw, 4.5rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.03em;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, var(--fg-primary) 0%, #4a5568 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            position: relative;
        }

        #typewriter {
            display: inline;
        }

        #typewriter .highlight {
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .cursor {
            display: inline-block;
            width: 3px;
            height: 1em;
            background: var(--accent);
            margin-left: 4px;
            animation: blink 1s step-end infinite;
            vertical-align: text-bottom;
        }

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0; }
        }



        .hero-desc {

            font-size: 1.25rem;

            color: var(--fg-secondary);

            max-width: 600px;

            margin: 0 auto 3rem;

            font-weight: 400;

            line-height: 1.8;

        }



        .hero-actions {

            display: flex;

            gap: 1rem;

            justify-content: center;

            flex-wrap: wrap;

        }



        .btn {

            display: inline-flex;

            align-items: center;

            gap: 0.5rem;

            padding: 1rem 2rem;

            border-radius: 12px;

            font-size: 0.95rem;

            font-weight: 600;

            text-decoration: none;

            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

            cursor: pointer;

            border: none;

        }



        .btn-primary {

            background: var(--accent);

            color: white;

            box-shadow: 0 4px 16px rgba(0, 102, 255, 0.3);

        }



        .btn-primary:hover {

            background: var(--accent-dark);

            transform: translateY(-2px);

            box-shadow: 0 8px 24px rgba(0, 102, 255, 0.4);

        }



        .btn-secondary {

            background: var(--bg-primary);

            color: var(--fg-primary);

            border: 1px solid var(--border);

            box-shadow: var(--shadow);

        }



        .btn-secondary:hover {

            border-color: var(--accent);

            color: var(--accent);

        }



        .scroll-indicator {

            position: absolute;

            bottom: 3rem;

            left: 50%;

            transform: translateX(-50%);

            display: flex;

            flex-direction: column;

            align-items: center;

            gap: 0.75rem;

            color: var(--fg-muted);

            font-size: 0.75rem;

            font-weight: 500;

        }



        .scroll-mouse {

            width: 24px;

            height: 40px;

            border: 2px solid var(--border);

            border-radius: 12px;

            position: relative;

        }



        .scroll-mouse::after {

            content: '';

            position: absolute;

            top: 8px;

            left: 50%;

            transform: translateX(-50%);

            width: 4px;

            height: 8px;

            background: var(--accent);

            border-radius: 2px;

            animation: scrollAnim 2s ease-in-out infinite;

        }



        @keyframes scrollAnim {

            0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }

            50% { opacity: 0.3; transform: translateX(-50%) translateY(10px); }

        }



        /* 产品区域 */

        .products {

            padding: 8rem 2rem;

            background: var(--bg-secondary);

            position: relative;

        }



        .section-header {

            text-align: center;

            max-width: 700px;

            margin: 0 auto 5rem;

        }



        .section-label {

            display: inline-block;

            font-size: 0.75rem;

            font-weight: 600;

            color: var(--accent);

            text-transform: uppercase;

            letter-spacing: 0.2em;

            margin-bottom: 1rem;

            background: var(--accent-glow);

            padding: 0.5rem 1rem;

            border-radius: 100px;

        }



        .section-title {

            font-size: clamp(2rem, 5vw, 3rem);

            font-weight: 700;

            letter-spacing: -0.02em;

            margin-bottom: 1rem;

            color: var(--fg-primary);

        }



        .section-desc {

            font-size: 1.1rem;

            color: var(--fg-secondary);

            font-weight: 400;

        }



        .products-grid {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }



        .product-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 2rem;
            position: relative;
            overflow: hidden;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: var(--shadow);
            opacity: 0;
            transform: translateY(40px);
        }

        .product-card.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .product-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.4s ease;
        }

        .product-card:hover {
            transform: translateY(-12px) scale(1.02);
            box-shadow: var(--shadow-lg);
            border-color: rgba(0, 102, 255, 0.3);
        }

        .product-card:hover::before {
            transform: scaleX(1);
        }



        .product-icon {

            width: 56px;

            height: 56px;

            background: linear-gradient(135deg, var(--accent-glow) 0%, rgba(0, 102, 255, 0.05) 100%);

            border: 1px solid rgba(0, 102, 255, 0.1);

            border-radius: 14px;

            display: flex;

            align-items: center;

            justify-content: center;

            margin-bottom: 1.5rem;

            transition: all 0.3s ease;

        }



        .product-card:hover .product-icon {
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
            border-color: transparent;
            transform: scale(1.1) rotate(5deg);
        }

        .product-icon svg {
            width: 28px;
            height: 28px;
            color: var(--accent);
            transition: all 0.3s ease;
        }

        .product-card:hover .product-icon svg {
            color: white;
            transform: scale(1.1);
        }



        .product-name {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
            color: var(--fg-primary);
            transition: all 0.3s ease;
        }

        .product-card:hover .product-name {
            color: var(--accent);
            transform: translateX(4px);
        }

        .product-desc {
            font-size: 0.95rem;
            color: var(--fg-secondary);
            line-height: 1.7;
            margin-bottom: 1.5rem;
            font-weight: 400;
            transition: all 0.3s ease;
        }

        .product-card:hover .product-desc {
            color: var(--fg-primary);
        }



        .product-link {

            display: inline-flex;

            align-items: center;

            gap: 0.5rem;

            color: var(--accent);

            text-decoration: none;

            font-size: 0.9rem;

            font-weight: 600;

            transition: all 0.3s ease;

            background: none;

            border: none;

            cursor: pointer;

            padding: 0;

        }



        .product-link:hover {

            gap: 0.75rem;

            color: var(--accent-dark);

        }



        .product-link svg {

            width: 16px;

            height: 16px;

            transition: transform 0.3s ease;

        }



        .product-link:hover svg {

            transform: translateX(4px);

        }



        /* 关于我们 */

        .about {

            padding: 8rem 2rem;

            position: relative;

            overflow: hidden;

        }



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

        .about-text {
            position: relative;
        }



        .about-title {

            font-size: clamp(2rem, 4vw, 2.75rem);

            font-weight: 700;

            letter-spacing: -0.02em;

            margin-bottom: 1.5rem;

            color: var(--fg-primary);

        }



        .about-desc {

            font-size: 1.05rem;

            color: var(--fg-secondary);

            line-height: 1.9;

            margin-bottom: 1.5rem;

            font-weight: 400;

        }



        .about-stats {

            display: grid;

            grid-template-columns: repeat(3, 1fr);

            gap: 2rem;

            padding-top: 2rem;

            margin-top: 2rem;

            border-top: 1px solid var(--border);

        }



        .stat-item {
            text-align: center;
        }



        .stat-number {

            font-size: 2.5rem;

            font-weight: 800;

            color: var(--accent);

            line-height: 1;

            margin-bottom: 0.5rem;

        }



        .stat-label {

            font-size: 0.85rem;

            color: var(--fg-secondary);

            font-weight: 500;

        }

        .contact {
            padding: 8rem 2rem;
            background: var(--bg-secondary);
            position: relative;
        }



        .contact-content {

            max-width: 1200px;

            margin: 0 auto;

            display: grid;

            grid-template-columns: 1fr 1fr;

            gap: 4rem;

        }



        .contact-info {

            position: relative;

        }



        .contact-title {

            font-size: clamp(1.75rem, 4vw, 2.25rem);

            font-weight: 700;

            margin-bottom: 1rem;

            color: var(--fg-primary);

        }



        .contact-desc {

            color: var(--fg-secondary);

            margin-bottom: 3rem;

            font-weight: 400;

            font-size: 1.05rem;

        }



        .contact-items {

            display: flex;

            flex-direction: column;

            gap: 1.5rem;

        }



        .contact-item {

            display: flex;

            align-items: flex-start;

            gap: 1rem;

        }



        .contact-icon {

            width: 48px;

            height: 48px;

            background: var(--bg-primary);

            border: 1px solid var(--border);

            border-radius: 12px;

            display: flex;

            align-items: center;

            justify-content: center;

            flex-shrink: 0;

            box-shadow: var(--shadow);

        }



        .contact-icon svg {

            width: 20px;

            height: 20px;

            color: var(--accent);

        }



        .contact-item-text h4 {

            font-size: 1rem;

            font-weight: 600;

            margin-bottom: 0.25rem;

            color: var(--fg-primary);

        }



        .contact-item-text p {

            color: var(--fg-secondary);

            font-size: 0.95rem;

        }



        .contact-form {

            background: var(--bg-card);

            border: 1px solid var(--border);

            border-radius: 24px;

            padding: 2.5rem;

            box-shadow: var(--shadow-lg);

        }



        .form-group {

            margin-bottom: 1.5rem;

        }



        .form-label {

            display: block;

            font-size: 0.85rem;

            font-weight: 600;

            margin-bottom: 0.5rem;

            color: var(--fg-primary);

        }



        .form-input {

            width: 100%;

            padding: 1rem 1.25rem;

            background: var(--bg-secondary);

            border: 1px solid var(--border);

            border-radius: 12px;

            color: var(--fg-primary);

            font-size: 1rem;

            font-family: inherit;

            transition: all 0.3s ease;

        }



        .form-input:focus {

            outline: none;

            border-color: var(--accent);

            background: var(--bg-primary);

            box-shadow: 0 0 0 4px var(--accent-glow);

        }



        .form-input::placeholder {

            color: var(--fg-muted);

        }



        textarea.form-input {

            resize: none;

            min-height: 120px;

        }



        .form-submit {

            width: 100%;

            padding: 1rem 2rem;

            background: var(--accent);

            color: white;

            border: none;

            border-radius: 12px;

            font-size: 1rem;

            font-weight: 600;

            cursor: pointer;

            transition: all 0.3s ease;

        }



        .form-submit:hover {

            background: var(--accent-dark);

            transform: translateY(-2px);

            box-shadow: 0 8px 24px rgba(0, 102, 255, 0.3);

        }



        /* Footer */

        .footer {

            background: var(--fg-primary);

            color: white;

            padding: 5rem 2rem 2rem;

            position: relative;

        }



        .footer-main {

            max-width: 1400px;

            margin: 0 auto;

            display: grid;

            grid-template-columns: 2fr 1fr 1fr 1fr;

            gap: 4rem;

            padding-bottom: 3rem;

            border-bottom: 1px solid rgba(255, 255, 255, 0.1);

        }



        .footer-brand {

            max-width: 320px;

        }



        .footer-logo {

            display: flex;

            align-items: center;

            gap: 0.75rem;

            margin-bottom: 1.5rem;

            text-decoration: none;

        }



        .footer-logo-icon {

            width: 40px;

            height: 40px;

            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);

            border-radius: 10px;

            display: flex;

            align-items: center;

            justify-content: center;

        }



        .footer-logo-icon svg {

            width: 22px;

            height: 22px;

            color: white;

        }



        .footer-logo-text {

            font-size: 1.25rem;

            font-weight: 700;

            color: white;

        }



        .footer-brand-desc {

            color: rgba(255, 255, 255, 0.6);

            font-size: 0.95rem;

            line-height: 1.7;

            margin-bottom: 1.5rem;

        }



        .footer-social {

            display: flex;

            gap: 0.75rem;

        }



        .footer-social-link {

            width: 40px;

            height: 40px;

            background: rgba(255, 255, 255, 0.05);

            border: 1px solid rgba(255, 255, 255, 0.1);

            border-radius: 10px;

            display: flex;

            align-items: center;

            justify-content: center;

            transition: all 0.3s ease;

        }



        .footer-social-link:hover {

            background: var(--accent);

            border-color: var(--accent);

        }



        .footer-social-link svg {

            width: 18px;

            height: 18px;

            color: rgba(255, 255, 255, 0.8);

        }



        .footer-column h4 {

            font-size: 0.9rem;

            font-weight: 600;

            margin-bottom: 1.5rem;

            color: white;

            letter-spacing: 0.02em;

        }



        .footer-links {

            list-style: none;

            display: flex;

            flex-direction: column;

            gap: 0.75rem;

        }



        .footer-links a {

            color: rgba(255, 255, 255, 0.6);

            text-decoration: none;

            font-size: 0.9rem;

            transition: all 0.3s ease;

            display: inline-flex;

            align-items: center;

            gap: 0.5rem;

        }



        .footer-links a:hover {

            color: white;

            transform: translateX(4px);

        }



        .footer-contact-item {

            display: flex;

            align-items: flex-start;

            gap: 0.75rem;

            margin-bottom: 1rem;

            color: rgba(255, 255, 255, 0.6);

            font-size: 0.9rem;

        }



        .footer-contact-item svg {

            width: 18px;

            height: 18px;

            color: var(--accent);

            flex-shrink: 0;

            margin-top: 2px;

        }



        .footer-bottom {

            max-width: 1400px;

            margin: 0 auto;

            padding-top: 2rem;

            display: flex;

            justify-content: space-between;

            align-items: center;

            flex-wrap: wrap;

            gap: 1rem;

        }



        .footer-copy {

            color: rgba(255, 255, 255, 0.4);

            font-size: 0.85rem;

        }



        .footer-bottom-links {

            display: flex;

            gap: 2rem;

        }



        .footer-bottom-links a {

            color: rgba(255, 255, 255, 0.4);

            text-decoration: none;

            font-size: 0.85rem;

            transition: color 0.3s ease;

        }



        .footer-bottom-links a:hover {
            color: white;
        }

        [data-theme="dark"] .footer {
            background: #0a0a0b;
        }

        [data-theme="dark"] .footer-main {
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .tear-page {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg-primary);
            z-index: 9999;
            padding: 2rem;
            overflow-y: auto;
        }

        .tear-page.active {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .tear-content {
            max-width: 800px;
            text-align: center;
            padding: 3rem;
        }

        .tear-title {
            font-size: clamp(2rem, 5vw, 3.5rem);
            font-weight: 800;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, var(--fg-primary) 0%, #4a5568 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }

        .tear-subtitle {
            font-size: 1.5rem;
            color: var(--accent);
            margin-bottom: 2rem;
            font-weight: 600;
        }

        .tear-desc {
            font-size: 1.8rem;
            color: var(--fg-secondary);
            line-height: 2.0;
        }

        .tear-back {
            position: absolute;
            top: 2rem;
            left: 2rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 0.75rem 1.25rem;
            color: var(--fg-secondary);
            font-size: 0.9rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.1s ease;
        }

        .tear-back:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateX(-4px);
        }

        .tear-back svg {
            width: 18px;
            height: 18px;
        }

        /* 二维码弹窗 */

        .modal-overlay {

            position: fixed;

            inset: 0;

            background: rgba(0, 0, 0, 0.6);

            backdrop-filter: blur(8px);

            z-index: 2000;

            display: flex;

            align-items: center;

            justify-content: center;

            opacity: 0;

            visibility: hidden;

            transition: all 0.3s ease;

        }



        .modal-overlay.active {

            opacity: 1;

            visibility: visible;

        }



        .modal {

            background: var(--bg-card);

            border-radius: 24px;

            padding: 2.5rem;

            max-width: 380px;

            width: 90%;

            text-align: center;

            transform: scale(0.9) translateY(20px);

            transition: transform 0.3s ease;

            box-shadow: var(--shadow-lg);

            position: relative;

        }



        .modal-overlay.active .modal {

            transform: scale(1) translateY(0);

        }



        .modal-close {

            position: absolute;

            top: 1rem;

            right: 1rem;

            width: 36px;

            height: 36px;

            background: var(--bg-secondary);

            border: 1px solid var(--border);

            border-radius: 50%;

            display: flex;

            align-items: center;

            justify-content: center;

            cursor: pointer;

            transition: all 0.3s ease;

        }



        .modal-close:hover {

            background: var(--accent);

            border-color: var(--accent);

        }



        .modal-close svg {

            width: 16px;

            height: 16px;

            color: var(--fg-primary);

        }



        .modal-close:hover svg {

            color: white;

        }



        .modal-icon {

            width: 64px;

            height: 64px;

            background: linear-gradient(135deg, #07c160 0%, #06ad56 100%);

            border-radius: 16px;

            display: flex;

            align-items: center;

            justify-content: center;

            margin: 0 auto 1.25rem;

        }



        .modal-icon svg {

            width: 32px;

            height: 32px;

            color: white;

        }



        .modal-title {

            font-size: 1.25rem;

            font-weight: 700;

            margin-bottom: 0.5rem;

            color: var(--fg-primary);

        }



        .modal-subtitle {

            color: var(--fg-secondary);

            font-size: 0.9rem;

            margin-bottom: 1.5rem;

        }



        .modal-qr {

            width: 180px;

            height: 180px;

            background: #fff;

            border-radius: 16px;

            margin: 0 auto 1.25rem;

            display: flex;

            align-items: center;

            justify-content: center;

            overflow: hidden;

            border: 1px solid var(--border);

        }



        .modal-qr img {

            width: 100%;

            height: 100%;

            object-fit: contain;

        }



        .modal-qr-placeholder {

            display: flex;

            flex-direction: column;

            align-items: center;

            justify-content: center;

            padding: 1rem;

            text-align: center;

        }



        .modal-qr-placeholder svg {

            width: 48px;

            height: 48px;

            color: #07c160;

            margin-bottom: 0.5rem;

        }



        .modal-qr-placeholder span {

            font-size: 0.8rem;

            color: var(--fg-secondary);

        }



        .modal-tip {

            color: var(--fg-muted);

            font-size: 0.8rem;

        }



        /* 移动端菜单 */

        .menu-toggle {

            display: none;

            width: 40px;

            height: 40px;

            background: var(--bg-secondary);

            border: 1px solid var(--border);

            border-radius: 10px;

            cursor: pointer;

            flex-direction: column;

            align-items: center;

            justify-content: center;

            gap: 5px;

        }



        .menu-toggle span {

            width: 18px;

            height: 2px;

            background: var(--fg-primary);

            border-radius: 1px;

            transition: all 0.3s ease;

        }



        /* 响应式 */

        @media (max-width: 1024px) {
            .about-content {
                grid-template-columns: 1fr;
                gap: 4rem;
            }

            .contact-content {
                grid-template-columns: 1fr;
            }

            .products-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--bg-primary);
                border-top: 1px solid var(--border);
                flex-direction: column;
                padding: 1rem;
                gap: 0;
                box-shadow: var(--shadow-lg);
            }

            .nav-links.active {
                display: flex;
            }

            .nav-links li {
                width: 100%;
            }

            .nav-links a {
                display: block;
                padding: 1rem;
                border-bottom: 1px solid var(--border);
            }

            .nav-links a:last-child {
                border-bottom: none;
            }

            .menu-toggle {
                display: flex;
            }

            .hero {
                padding: 7rem 1.5rem 5rem;
            }

            .hero-desc {
                font-size: 1.05rem;
            }

            .products {
                padding: 5rem 1.5rem;
            }

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

            .about {
                padding: 5rem 1.5rem;
            }

            .about-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 1rem;
            }

            .stat-number {
                font-size: 1.75rem;
            }

            .contact {
                padding: 5rem 1.5rem;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .modal {
                margin: 1rem;
                padding: 2rem;
            }
        }



        @media (prefers-reduced-motion: reduce) {

            *, *::before, *::after {

                animation-duration: 0.01ms !important;

                animation-iteration-count: 1 !important;

                transition-duration: 0.01ms !important;

            }

        }



        /* 隐私政策弹窗样式 */

        .privacy-overlay {

            position: fixed;

            inset: 0;

            background: rgba(0, 0, 0, 0.6);

            backdrop-filter: blur(8px);

            z-index: 2000;

            display: flex;

            align-items: center;

            justify-content: center;

            opacity: 0;

            visibility: hidden;

            transition: all 0.3s ease;

        }



        .privacy-overlay.active {

            opacity: 1;

            visibility: visible;

        }



        .privacy-modal {

            background: var(--bg-card);

            border-radius: 24px;

            max-width: 90vw;

            width: 90vw;

            max-height: 90vh;

            text-align: left;

            transform: scale(0.9) translateY(20px);

            transition: transform 0.3s ease;

            box-shadow: var(--shadow-lg);

            position: relative;

            overflow: hidden;

            display: flex;

            flex-direction: column;

        }



        .privacy-overlay.active .privacy-modal {

            transform: scale(1) translateY(0);

        }



        .privacy-close {

            position: absolute;

            top: 1rem;

            right: 1rem;

            width: 36px;

            height: 36px;

            background: var(--bg-secondary);

            border: 1px solid var(--border);

            border-radius: 50%;

            display: flex;

            align-items: center;

            justify-content: center;

            cursor: pointer;

            transition: all 0.3s ease;

            z-index: 10;

        }



        .privacy-close:hover {

            background: var(--accent);

            border-color: var(--accent);

            color: white;

        }



        .privacy-content {

            padding: 3rem;

            overflow-y: auto;

            max-height: 90vh;

        }



        .privacy-content::-webkit-scrollbar {

            width: 6px;

        }



        .privacy-content::-webkit-scrollbar-track {

            background: var(--bg-secondary);

            border-radius: 3px;

        }



        .privacy-content::-webkit-scrollbar-thumb {

            background: var(--accent);

            border-radius: 3px;

        }



        .privacy-loading,

        .privacy-error {

            text-align: center;

            padding: 3rem;

            color: var(--fg-secondary);

            font-size: 1.1rem;

        }



        .privacy-error {

            color: #ef4444;

        }



        /* 隐私政策内容样式覆盖 */

        .privacy-content h1 {

            font-size: 1.5rem;

            color: var(--fg-primary);

            margin-bottom: 1.5rem;

            text-align: center;

        }



        .privacy-content h2 {

            font-size: 1.2rem;

            color: var(--fg-primary);

            margin-top: 1.5rem;

            margin-bottom: 0.75rem;

            border-bottom: 1px solid var(--border);

            padding-bottom: 0.5rem;

        }



        .privacy-content p {

            margin-bottom: 0.75rem;

            text-align: justify;

            color: var(--fg-secondary);

        }



        .privacy-content ul {

            margin-left: 1.5rem;

            margin-bottom: 1rem;

        }



        .privacy-content li {

            margin-bottom: 0.5rem;

            color: var(--fg-secondary);

        }



        .privacy-content .section {

            margin-bottom: 1.5rem;

            background: var(--bg-secondary);

            padding: 1rem;

            border-radius: 8px;

        }



        .privacy-content .highlight {

            font-weight: bold;

            color: var(--accent);

        }



        /* 移动端适配 */

        @media (max-width: 768px) {

            .privacy-modal {

                width: 95vw;

                max-width: 95vw;

                max-height: 95vh;

                border-radius: 16px;

            }



            .privacy-content {

                padding: 1.5rem;

                max-height: 95vh;

            }



            .privacy-close {

                top: 0.75rem;

                right: 0.75rem;

                width: 32px;

                height: 32px;

            }



            .privacy-content h1 {

                font-size: 1.25rem;

            }



            .privacy-content h2 {

                font-size: 1.1rem;

            }

        }