/* ========== 全局样式 ========== */
        :root {
            --primary: #00616C;
            --primary-light: #007A88;
            --primary-dark: #004D56;
            --accent: #D4AF37;
            --accent-light: #E5C55A;
            --text-main: #1a1a1a;
            --text-sub: #666666;
            --bg-light: #F9FAFB;
            --white: #FFFFFF;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 12px 60px rgba(0, 0, 0, 0.15);
            --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        html, body {
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden !important;
        touch-action: manipulation !important;
        -webkit-text-size-adjust: 100% !important;
        text-size-adjust: 100% !important;
        }

        input, textarea, select {
        font-size: 16px !important;
        border-radius: 10px;
        border: 1.5px solid var(--accent);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            color: var(--text-main);
            line-height: 1.8;
            overflow-x: hidden;
            background: var(--white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            text-rendering: optimizeLegibility;
        }

        /* ========== 头部导航 ========== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            -webkit-backdrop-filter: saturate(180%) blur(10px);
            backdrop-filter: saturate(180%) blur(10px);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            -webkit-transform: translateZ(0);
            transform: translateZ(0);
            will-change: transform;
        }
        .slogan {
            color: #cfae47;
            font-size: clamp(20px, 6vw, 32px);
        
               }

        @media (max-width: 768px) {
            .header {
                background: #e5e5e5ad;
                box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
            }
        }

        .header.scrolled {
            box-shadow: 0px 1px 2px rgb(0 0 0 / 18%);
        }

        .nav-container {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 60px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 90px;
            padding-left: max(60px, env(safe-area-inset-left));
            padding-right: max(60px, env(safe-area-inset-right));
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            -webkit-tap-highlight-color: transparent;
            tap-highlight-color: transparent;
        }

        .brand-logo {
            font-size: clamp(32px, 4.5vw, 50px);
            transition: var(--transition);
            color: var(--accent);
            line-height: 1;
            flex-shrink: 0;
        }

        .brand:hover .brand-logo {
            transform: scale(1.05);
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            gap: clamp(0px, 0.1vw, 0px);
            line-height: 1.2;
            min-width: 0;
        }

        .brand-name {
            font-size: clamp(14px, 2vw, 19px);
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.05em;
            line-height: 1.3;
            white-space: nowrap;
        }

        .brand-slogan {
            font-size: clamp(8px, 1vw, 11px);
            font-weight: 500;
            color: var(--accent);
            letter-spacing: 0.12em;
            line-height: 1;
            text-transform: uppercase;
        }

        .nav-menu {
            display: flex;
            gap: clamp(16px, 3vw, 32px);
            list-style: none;
            flex-wrap: nowrap;
        }

        .nav-menu a {
            text-decoration: none;
            color: var(--text-main);
            font-size: clamp(13px, 1.4vw, 15px);
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            padding: 8px 16px;
            border-radius: 8px;
            -webkit-tap-highlight-color: transparent;
            cursor: pointer;
            white-space: nowrap;
        }

        .nav-menu a:hover {
            color: var(--accent); 
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)); 
            box-shadow: 0 4px 16px rgba(0, 97, 108, 0.3);
        }

        .nav-menu a.active {
            color: var(--accent); 
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)); 
            box-shadow: 0 4px 16px rgba(0, 97, 108, 0.3);
        }

        .mobile-phone {
            display: none;
            font-size: clamp(13px, 1.4vw, 15px);
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 1px;
        }

        .mobile-call-btn {
            display: none;
            width: clamp(36px, 5vw, 40px);
            height: clamp(36px, 5vw, 40px);
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: white;
            font-size: clamp(18px, 2.5vw, 22px);
            align-items: center;
            justify-content: center;
            text-decoration: none;
            transition: var(--transition);
            -webkit-tap-highlight-color: transparent;
            box-shadow: 0 2px 12px rgba(212, 175, 55, 0.4);
            flex-shrink: 0;
        }

        .mobile-call-btn:active {
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            transform: scale(0.95);
        }

        .mobile-tagline {
            display: none;
            padding: 6px 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            font-size: clamp(11px, 1.5vw, 13px);
            font-weight: 600;
            border-radius: 20px;
            letter-spacing: 1px;
            box-shadow: 0 2px 8px rgba(0, 97, 108, 0.3);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .hero-section {
            margin-top: 90px;
            position: relative;
            height: 700px;
            overflow: hidden;
        }

        .hero-slider {
            position: relative;
            width: 100%;
            height: 100%;
        }

        .hero-slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 1s ease-in-out;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-slide.active {
            opacity: 1;
        }

        .hero-slide::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(0, 97, 108, 0.8) 0%, rgba(0, 77, 86, 0.65) 50%, rgba(0, 97, 108, 0.8) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: var(--white);
            max-width: 900px;
            padding: 0 40px;
            animation: fadeInUp 1s ease;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero-slogan {
            font-size: clamp(36px, 5vw, 64px);
            font-weight: 800;
            margin-bottom: 24px;
            letter-spacing: 3px;
            text-shadow: 0 4px 24px rgba(0, 0, 0, 0.3), 0 0 40px rgba(212, 175, 55, 0.2);
            line-height: 1.2;
            background: linear-gradient(to bottom, #ffffff 0%, var(--accent-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: clamp(16px, 2vw, 22px);
            font-weight: 400;
            opacity: 0.95;
            letter-spacing: 2px;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.95);
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }

        .hero-dots {
            position: absolute;
            bottom: 40px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 12px;
            z-index: 10;
        }

        .hero-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: var(--transition);
        }

        .hero-dot.active {
            background: var(--accent);
            transform: scale(1.2);
        }

        .section {
            padding: 50px 60px;
            max-width: 1440px;
            margin: 0 auto;
        }

        .section-title {
            text-align: center;
            margin-bottom: 30px;
            position: relative;
        }

        .section-title::before {
            content: '';
            position: absolute;
            top: -30px;
            left: 50%;
            transform: translateX(-50%);
            width: 120px;
            height: 120px;
            background: radial-gradient(circle, rgba(212, 175, 55, 0.08) 0%, transparent 70%);
            z-index: 0;
        }

        .section-title h2 {
            font-size: clamp(32px, 4vw, 52px);
            font-weight: 900;
            background: linear-gradient(135deg, #ffc300 0%, #dea107 50%, #ffc400 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 20px;
            position: relative;
            display: inline-block;
            letter-spacing: 0.04em;
            text-shadow: 0 2px 10px rgba(0, 97, 108, 0.1);
            z-index: 1;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -12px;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 5px;
            background: linear-gradient(90deg, 
                transparent 0%, 
                var(--accent) 20%, 
                var(--primary) 50%, 
                var(--accent-light) 80%, 
                transparent 100%
            );
            border-radius: 3px;
            box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
        }

        .section-title h2::before {
            content: '';
            position: absolute;
            bottom: -42px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 12px;
            color: var(--accent);
            opacity: 0.6;
        }

        .section-title p {
            font-size: clamp(14px, 1.6vw, 18px);
            color: #64748b;
            margin-top: 20px;
            letter-spacing: 1px;
            font-weight: 400;
            line-height: 1.8;
            position: relative;
            padding: 0 40px;
        }

        .section-title p::before,
        .section-title p::after {
            content: '';
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            color: var(--accent);
            opacity: 0.4;
            font-size: 20px;
            letter-spacing: 2px;
        }

        .section-title p::before {
            left: 10px;
        }

        .section-title p::after {
            right: 10px;
        }

        .concept-section {
            background: var(--bg-light);
            padding: 50px 0;
        }

        .concept-carousel {
            position: relative;
            max-width: 1400px;
            margin: 0 auto;
        }

        .concept-carousel::after {
            content: '';
            display: none;
        }

        @media (max-width: 768px) {
            .concept-carousel::after {
                content: '';
                display: block;
                text-align: center;
                color: var(--text-sub);
                font-size: 12px;
                margin-top: 16px;
                opacity: 0.5;
                pointer-events: none;
                letter-spacing: 0.5px;
            }
        }

        .concept-track {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            padding: 0;
            max-width: 1200px; 
            margin: 0 auto; 
        }

        @media (max-width: 768px) {
            .concept-track {
                display: flex;
                gap: 16px;
                overflow-x: auto;
                scroll-snap-type: x mandatory;
                -webkit-overflow-scrolling: touch; 
                scrollbar-width: none;
                -ms-overflow-style: none;
                padding: 0 16px;
                cursor: grab;
                justify-content: center;
                scroll-behavior: smooth; 
                will-change: scroll-position; 
            }

            .concept-track::-webkit-scrollbar {
                display: none;
            }

            .concept-track:active {
                cursor: grabbing;
            }

            .concept-card {
                width: calc(100vw - 32px); 
                max-width: 400px; 
                min-width: calc(100vw - 32px);
                flex-shrink: 0;
                scroll-snap-align: center; 
                box-sizing: border-box;
            }
        }

        .concept-inner {
            background: #00616c;
            border-radius: 20px;
            padding: 50px 35px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            border: 2px solid rgba(212, 175, 55, 0.1);
            height: 100%;
            min-height: 380px;
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            align-items: center;
            position: relative;
            overflow: hidden;
            box-sizing: border-box;
        }

        .concept-inner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--primary));
        }

        .concept-number {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 72px;
            font-weight: 900;
            background: linear-gradient(135deg, rgba(212, 175, 55, 0.15), rgba(207, 174, 71, 0.1));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1;
            font-family: 'Arial', sans-serif;
            z-index: 0;
            opacity: 0.6;
            transition: var(--transition);
        }

        .concept-inner:hover .concept-number {
            opacity: 0.8;
            transform: scale(1.05);
        }

        .concept-icon {
            width: 90px;
            height: 90px;
            margin: 0 auto 24px; 
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 40px;
            color: var(--white);
            box-shadow: 0 8px 24px rgba(212, 175, 55, 0.3);
            transition: var(--transition);
            flex-shrink: 0; 
        }

        .concept-inner:hover .concept-icon {
            transform: scale(1.1) rotate(5deg);
        }

        .concept-card h3 {
            font-size: clamp(18px, 2.2vw, 22px);
            font-weight: 700;
            color: #cfae47;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
            line-height: 1.5;
            min-height: 66px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
        }

        .concept-card h3 br {
            display: block;
            content: '';
            margin: 4px 0;
        }

        .concept-card p {
            font-size: clamp(13px, 1.4vw, 15px);
            color: #d7b956;
            line-height: 2;
            letter-spacing: 0.3px;
            text-align: justify;
            margin: 0;
            flex: 1;
            text-indent: 2em;
        }

        .concept-nav {
            display: none;
            justify-content: center;
            gap: 20px;
            margin-top: 40px;
        }

        .concept-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            border: 2px solid var(--primary);
            background: var(--white);
            color: var(--primary);
            font-size: 20px;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .concept-btn:hover {
            background: var(--primary);
            color: var(--white);
            transform: scale(1.1);
        }

        .concept-indicators {
            display: none;
            justify-content: center;
            gap: 12px;
            margin-top: 30px;
        }

        .concept-indicator {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--border);
            cursor: pointer;
            transition: var(--transition);
        }

        .concept-indicator.active {
            background: var(--accent);
            width: 30px;
            border-radius: 5px;
        }

        .market-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .market-card {
            background: var(--white);
            border-radius: 20px;
            padding: 35px 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 2px solid rgba(212, 175, 55, 0.08);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .market-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--primary));
            transform: scaleX(0);
            transition: var(--transition);
        }

        .market-card:hover {
            transform: translateY(-12px);
            box-shadow: var(--shadow-xl);
            border-color: var(--accent);
        }

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

        .market-icon {
            width: 90px;
            height: 90px;
            margin: 0 auto 28px;
            /* background: linear-gradient(135deg, var(--accent), var(--accent-light)); */
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 100px;
            color: #cfae47;
            /* box-shadow: 0 8px 24px rgba(212, 175, 55, 0.3); */
            transition: var(--transition);
        }

        .market-card:hover .market-icon {
            transform: scale(1.1) rotate(5deg);
        }

        .market-card h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .market-card p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.9;
            letter-spacing: 0.2px;
        }

        .about-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: var(--white);
            width: 100%;
            max-width: 100%;
            padding-left: 0;
            padding-right: 0;
        }

        .about-section .about-content {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 60px;
        }

        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .about-text h2 {
            font-size: 48px;
            font-weight: 800;
            margin-bottom: 32px;
            letter-spacing: 1px;
        }

        .about-text p {
            font-size: clamp(16px, 1.8vw, 18px);
            line-height: 2.2;
            opacity: 0.95;
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }

        .about-image {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow-xl);
        }

        .about-slider {
            position: relative;
            width: 100%;
            height: 450px;
            overflow: hidden;
        }

        .about-slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 0.8s ease-in-out;
        }

        .about-slide.active {
            opacity: 1;
        }

        .about-slide img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.8s ease;
        }

        .about-slide.active img {
            transform: scale(1.05);
        }

        .about-dots {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
            z-index: 10;
        }

        .about-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid rgba(255, 255, 255, 0.8);
        }

        .about-dot.active {
            background: var(--accent);
            border-color: var(--accent);
            transform: scale(1.3);
        }

        .about-dot:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
        }

        .ai-features {
            display: grid;
            grid-template-columns: repeat(4, 1fr); 
            gap: 24px;
        }

        .ai-card {
            background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
            border-radius: 16px;
            padding: 35px 28px;
            box-shadow: 0 4px 16px rgba(212, 175, 55, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            border: 2px solid rgba(212, 175, 55, 0.08);
            min-height: 280px;
            display: flex;
            flex-direction: column;
        }

        .ai-number {
            position: absolute;
            top: 16px;
            right: 18px;
            font-size: 42px;
            font-weight: 900;
            background: linear-gradient(135deg, rgba(212, 175, 55, 0.15), rgba(0, 97, 108, 0.1));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1;
            font-family: 'Arial', sans-serif;
            z-index: 0;
        }

        .ai-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--primary), var(--primary-light));
            box-shadow: 0 2px 6px rgba(0, 97, 108, 0.2);
        }

        .ai-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 32px rgba(212, 175, 55, 0.15), 0 4px 12px rgba(0, 0, 0, 0.06);
            border-color: rgba(212, 175, 55, 0.2);
        }

        .ai-card h3 {
            font-size: clamp(16px, 2vw, 18px);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.3px;
            line-height: 1.4;
            position: relative;
            z-index: 1;
            min-height: 50px; 
        }

        .ai-card p {
            font-size: clamp(13px, 1.5vw, 14px);
            color: #4a5568;
            line-height: 1.8;
            letter-spacing: 0.2px;
            position: relative;
            z-index: 1;
            flex: 1; 
        }

        .founder-section {
            background: var(--bg-light);
            width: 100%;
            max-width: 100%;
            padding-left: 0;
            padding-right: 0;
        }

        .founder-section .section-title,
        .founder-section .founder-content {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 60px;
        }

        .founder-content {
            display: grid;
            grid-template-columns: 400px 1fr;
            gap: 60px;
            align-items: center;
        }

        .founder-image {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow-xl);
        }

        .founder-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            display: block;
            transition: var(--transition);
        }

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

        .founder-info h3 {
            font-size: clamp(32px, 4vw, 40px);
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

        .founder-info .subtitle {
            font-size: clamp(17px, 1.9vw, 19px);
            color: var(--accent);
            margin-bottom: 32px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .founder-info p {
            font-size: clamp(15px, 1.7vw, 17px);
            line-height: 2.2;
            color: var(--text-sub);
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }

        .douyin-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #FE2C55, #FF0050);
            color: white;
            padding: 12px 24px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            margin-top: 20px;
            text-decoration: none;
            transition: var(--transition);
            box-shadow: 0 4px 12px rgba(254, 44, 85, 0.3);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .douyin-badge::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            border: 2px solid var(--accent);
            border-radius: 30px;
            opacity: 0.3;
        }

        .douyin-badge:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(254, 44, 85, 0.4);
        }

        .douyin-badge:active {
            transform: translateY(0);
        }

        .trend-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .trend-card {
            background: var(--white);
            border-radius: 20px;
            padding: 60px 45px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 2px solid rgba(212, 175, 55, 0.06);
        }

        .trend-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--primary));
            transform: scaleX(0);
            transition: var(--transition);
        }

        .trend-card:hover {
            transform: translateY(-12px);
            box-shadow: var(--shadow-xl);
            border-color: rgba(212, 175, 55, 0.15);
        }

        .trend-card:hover::after {
            transform: scaleX(1);
        }

        .trend-number {
            font-size: 72px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 24px;
            line-height: 1;
        }

        .trend-card h3 {
            font-size: clamp(22px, 2.8vw, 26px);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }

        .trend-card p {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 2;
            letter-spacing: 0.2px;
        }

        .brand-concept-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            width: 100%;
            max-width: 100%;
            padding-left: 0;
            padding-right: 0;
            position: relative;
            overflow: hidden;
            min-height: 500px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .brand-concept-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            opacity: 0.1;
            pointer-events: none;
        }

        .bg-logo {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .brand-concept-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 1200px;
            margin: 0 auto;
            padding: 80px 60px;
        }

        .brand-title {
            font-size: clamp(28px, 4vw, 50px);
            font-weight: 700;
            color: var(--accent-light);
            margin-bottom: 24px;
            letter-spacing: 0.15em;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }

        .brand-slogan {
            font-size: clamp(8px, 3vw, 10px);
            font-weight: 350;
            color: #393939;
            /* margin-bottom: 20px; */
            letter-spacing: 0.07em;
            line-height: 1.4;
            text-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
        }

        .brand-english {
            font-size: clamp(14px, 1.8vw, 20px);
            color: rgba(255, 255, 255, 0.8);
            letter-spacing: 0.1em;
            font-weight: 400;
        }

        .brand-decoration {
            position: absolute;
            top: 40px;
            right: 60px;
        }

        .profile-decoration {
            max-width: 200px;
            opacity: 0.6;
        }

        .brand-vision-section {
            /* background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); */
        }

        .vision-cards {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }

        .vision-card {
            background: var(--white);
            border-radius: 20px;
            padding: 40px;
            display: flex;
            align-items: center;
            gap: 24px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            border: 2px solid rgba(212, 175, 55, 0.08);
            position: relative;
            overflow: hidden;
            min-height: 180px;
        }

        .vision-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--primary), var(--accent-light));
            box-shadow: 0 2px 6px rgba(0, 97, 108, 0.2);
        }

        .vision-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 40px rgba(212, 175, 55, 0.15), 0 4px 12px rgba(0, 0, 0, 0.08);
            border-color: rgba(212, 175, 55, 0.2);
        }

        .vision-icon {
            font-size: 56px;
            flex-shrink: 0;
            width: 80px;
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(212, 175, 55, 0.1), rgba(0, 97, 108, 0.08));
            border-radius: 16px;
            color: var(--accent);
            transition: var(--transition);
        }

        .vision-card:hover .vision-icon {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: white;
            transform: scale(1.05) rotate(5deg);
            box-shadow: 0 8px 24px rgba(212, 175, 55, 0.3);
        }

        .vision-icon i {
            font-size: 40px;
        }

        .vision-content {
            flex: 1;
        }

        .vision-content h3 {
            font-size: clamp(18px, 2.2vw, 22px);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }

        .vision-content p {
            font-size: clamp(14px, 1.5vw, 15px);
            color: var(--text-sub);
            line-height: 1.8;
            letter-spacing: 0.02em;
        }

        .product-series-section {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            width: 100%;
            max-width: 100%;
            padding-left: 0;
            padding-right: 0;
        }

        .product-series-section .section-title,
        .product-series-section .product-series-grid {
            max-width: 1440px;
            margin: 0 auto;
            padding: 20px 60px;
        }

        .product-series-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }

        .product-series-card {
            background: var(--white);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            border: 2px solid rgba(212, 175, 55, 0.06);
        }

        .product-series-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 40px rgba(212, 175, 55, 0.2), 0 4px 12px rgba(0, 0, 0, 0.1);
            border-color: var(--accent);
        }

        .series-header {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 32px 40px;
            display: flex;
            align-items: center;
            gap: 20px;
            position: relative;
            overflow: hidden;
        }

        .series-header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light), var(--accent));
        }

        .series-header h3 {
            font-size: clamp(22px, 2.8vw, 28px);
            font-weight: 700;
            color: var(--white);
            margin: 0;
        }

        .series-type {
            font-size: clamp(14px, 1.5vw, 16px);
            color: rgba(255, 255, 255, 0.9);
            letter-spacing: 0.03em;
        }

        .series-content {
            padding: 40px;
            display: flex;
            gap: 32px;
            align-items: center;
        }

        .series-image img,
        .series-images {
            max-width: 300px;
            flex-shrink: 0;
        }

        .series-images {
            display: flex;
            gap: 16px;
        }

        .window-img {
            max-width: 140px;
        }

        .series-list {
            list-style: none;
            padding: 0;
            margin: 0;
            flex: 1;
        }

        .series-list li {
            font-size: clamp(15px, 1.5vw, 17px);
            color: var(--text-main);
            padding: 12px 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            letter-spacing: 0.02em;
        }

        .series-list li:last-child {
            border-bottom: none;
        }

        .engineering-structure-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            width: 100%;
            max-width: 100%;
            padding-left: 0;
            padding-right: 0;
        }

        .engineering-structure-content {
            max-width: 1440px;
            margin: 0 auto;
            padding: 35px 60px;
        }

        .structure-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .structure-header h2 {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 20px;
            letter-spacing: 0.05em;
        }

        .structure-subtitle {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 24px;
        }

        .structure-subtitle span {
            font-size: clamp(18px, 2.2vw, 24px);
            color: var(--white);
            font-weight: 600;
        }

        .self-research {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary) !important;
            padding: 8px 24px;
            border-radius: 20px;
            font-size: clamp(16px, 1.8vw, 18px) !important;
            font-weight: 700 !important;
            box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
        }

        .structure-body {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .structure-features h3 {
            font-size: clamp(22px, 2.5vw, 28px);
            font-weight: 700;
            color: var(--white);
            margin-bottom: 32px;
        }

        .features-list {
            list-style: none;
            padding: 0;
            margin: 0 0 40px 0;
        }

        .features-list li {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .feature-icon {
            font-size: 24px;
            flex-shrink: 0;
        }

        .feature-text {
            font-size: clamp(15px, 1.6vw, 18px);
            color: var(--white);
            letter-spacing: 0.02em;
        }

        .profile-images {
            display: flex;
            gap: 16px;
            justify-content: center;
        }

        .profile-images img {
            max-width: 100%;
            height: auto;
        }

        .structure-showcase {
            text-align: center;
        }

        .structure-showcase img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
        }

        .honor-section {
            /* background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%); */
        }

        .honor-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }

        .honor-card {
            background: var(--white);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            border: 2px solid rgba(212, 175, 55, 0.06);
        }

        .honor-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 40px rgba(212, 175, 55, 0.2), 0 4px 12px rgba(0, 0, 0, 0.1);
            border-color: var(--accent);
        }

        .honor-card img {
            width: 100%;
            height: auto;
            display: block;
        }

        .honor-info {
            padding: 32px;
        }

        .honor-info h3 {
            font-size: clamp(18px, 2vw, 22px);
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .honor-info p {
            font-size: clamp(14px, 1.4vw, 16px);
            color: var(--text-sub);
            margin-bottom: 8px;
        }

        .honor-validity {
            color: var(--accent) !important;
            font-weight: 600;
            margin-top: 12px;
        }

        .cases-section {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            width: 100%;
            max-width: 100%;
            padding-left: 0;
            padding-right: 0;
        }

        .cases-section .section-title,
        .cases-section .cases-grid {
            max-width: 1440px;
            margin: 0 auto;
            padding: 20px 0px;
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .case-card {
            background: var(--white);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            border: 2px solid rgba(212, 175, 55, 0.06);
        }

        .case-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 40px rgba(212, 175, 55, 0.15), 0 4px 12px rgba(0, 0, 0, 0.1);
            border-color: var(--accent);
        }

        .case-image {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .case-card:hover .case-image img {
            transform: scale(1.08);
        }

        .case-overlay {
            position: absolute;
            top: 16px;
            right: 16px;
        }

        .case-tag {
            display: inline-block;
            background: linear-gradient(135deg, #20535d, #1f535d);
            color: #d2b24c;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
        }

        .case-info {
            padding: 24px;
        }

        .case-info h3 {
            font-size: clamp(16px, 2vw, 18px);
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        .case-info p {
            font-size: clamp(12px, 1.5vw, 14px);
            color: var(--text-light);
            letter-spacing: 0.2px;
        }

        @media (max-width: 768px) {
            .brand-concept-inner {
                padding: 30px 30px;
            }

            .brand-title {
                font-size: clamp(48px, 6vw, 32px);
                letter-spacing: 0.15em;
            }

            .brand-slogan {
                font-size: clamp(28px, 7vw, 36px);
                letter-spacing: 0.05em;
            }

            .brand-english {
                font-size: clamp(12px, 3vw, 16px);
            }

            .brand-decoration {
                display: none;
            }

            .vision-card {
                flex-direction: row;
                padding: 24px;
                gap: 16px;
                min-height: auto;
            }

            .vision-icon {
                width: 60px;
                height: 60px;
                font-size: 40px;
            }

            .vision-icon i {
                font-size: 32px;
            }

            .vision-content h3 {
                font-size: clamp(14px, 4vw, 18px);
            }

            .vision-content p {
                font-size: clamp(13px, 3.5vw, 14px);
            }

            .vision-cards {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .product-series-section .section-title,
            .product-series-section .product-series-grid {
                padding: 0 0px;
            }

            .product-series-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .series-content {
                flex-direction: column;
                padding: 24px;
            }

            .series-image img,
            .series-images {
                max-width: 100%;
            }

            .series-images {
                justify-content: center;
            }

            .series-list li {
                font-size: clamp(13px, 3.5vw, 15px);
            }

            .engineering-structure-content {
                padding: 60px 30px;
            }

            .structure-header h2 {
                font-size: clamp(24px, 6vw, 28px);
            }

            .structure-subtitle {
                flex-direction: column;
                gap: 12px;
            }

            .structure-body {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .structure-features h3 {
                font-size: clamp(18px, 4.5vw, 22px);
            }

            .feature-text {
                font-size: clamp(13px, 3.5vw, 15px);
            }

            .profile-images {
                flex-wrap: wrap;
            }

            .honor-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .honor-info {
                padding: 24px;
            }

            .honor-info h3 {
                font-size: clamp(16px, 4vw, 18px);
            }

            .honor-info p {
                font-size: clamp(12px, 3.2vw, 14px);
            }

            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
                padding: 20px 60px;
            }

            .case-image {
                height: 200px;
            }

            .case-info {
                padding: 16px;
            }

            .case-info h3 {
                font-size: clamp(15px, 4vw, 15px);
            }

            .case-info p {
                font-size: clamp(12px, 3.2vw, 12px);
            }
        }

        @media (max-width: 480px) {
            .cases-grid {
                grid-template-columns: 1fr;
            }

            .case-image {
                height: 180px;
            }
        }

        @media (min-width: 769px) and (max-width: 1024px) {
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .case-image {
                height: 180px;
            }
        }

        @media (min-width: 1440px) {
            .cases-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 40px;
            }

            .case-image {
                height: 230px;
            }
        }

        .contact-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: var(--white);
            width: 100%;
            max-width: 100%;
            padding-left: 0;
            padding-right: 0;
            position: relative;
        }

        .contact-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: 
                radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(0, 0, 0, 0.15) 0%, transparent 50%);
            pointer-events: none;
        }

        .contact-section .section-title,
        .contact-section .contact-grid {
            max-width: 1440px;
            margin: 0 auto;
            padding: 20px 60px;
        }

        .contact-section .section-title h2 {
            color: var(--accent) !important; 
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }

        .contact-section .section-title p {
            color: rgba(255, 255, 255, 0.9) !important;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 40px;
        }

        .contact-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: 20px;
            padding: 45px 35px;
            text-align: center;
            transition: var(--transition);
            border: 2px solid rgba(255, 255, 255, 0.3);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }

        .contact-card:hover {
            background: rgba(255, 255, 255, 1);
            transform: translateY(-12px);
            border-color: var(--accent);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25), 0 4px 16px rgba(212, 175, 55, 0.4);
        }

        .contact-icon {
            font-size: 68px;
            /* margin-bottom: 24px; */
            filter: drop-shadow(0 4px 12px rgba(212, 175, 55, 0.2));
            color: var(--accent);
        }

        /* 微信图标绿色 */
        .contact-icon.icon-weixin1 {
            color: #07C160;
            filter: drop-shadow(0 4px 12px rgba(7, 193, 96, 0.3));
        }

        .contact-card h3 {
            font-size: clamp(18px, 2.2vw, 22px);
            font-weight: 700;
            color: var(--accent); 
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .contact-card p {
            font-size: clamp(14px, 1.6vw, 16px);
            color: #2c3e50; 
            opacity: 1;
            line-height: 1.9;
            letter-spacing: 0.2px;
        }

        /* 微信咨询卡片特殊样式 */
        .contact-card[onclick] {
            cursor: pointer;
            position: relative;
        }

        .contact-card[onclick]:hover::after {
            content: '点击复制';
            position: absolute;
            top: 10px;
            right: 10px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: white;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
        }

        .footer {
            background: #f6f8fa;
            color: #2c2c36;
            padding: 40px;
            text-align: center;
        }

        .footer p {
            font-size: clamp(12px, 1.4vw, 14px);
            opacity: 0.8;
        }

        .fade-in {
            opacity: 0;
            transform: translateY(40px);
            transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), 
                        transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (max-width: 1024px) {
            .nav-container {
                padding: 0 30px;
            }

            .section {
                padding: 80px 30px;
            }

            .hero-section {
                height: 550px;
            }

            .hero-slogan {
                font-size: 48px;
            }

            .concept-inner {
                padding: 60px 40px;
            }
        }

        @media (max-width: 768px) {
            .nav-container {
                padding: 0 20px;
                height: 70px;
                padding-left: max(20px, env(safe-area-inset-left));
                padding-right: max(20px, env(safe-area-inset-right));
            }

            .brand-logo {
                font-size: clamp(28px, 6vw, 40px);
            }

            .brand-name {
                font-size: clamp(13px, 2.8vw, 16px);
            }

            .brand-slogan {
                font-size: clamp(7px, 1.2vw, 9px);
            }

            .mobile-tagline {
                display: block;
                font-size: clamp(10px, 1.8vw, 12px);
                padding: 4px 12px;
            }

            .mobile-call-btn {
                display: flex;
                width: clamp(32px, 5vw, 38px);
                height: clamp(32px, 5vw, 38px);
                font-size: clamp(16px, 3vw, 20px);
            }

            .nav-menu {
                display: none;
            }

            .mobile-phone {
                display: flex;
            }

            .hero-section {
                margin-top: 60px;
                height: 260px;
            }

            .hero-slogan {
                font-size: clamp(28px, 7vw, 32px);
                letter-spacing: 1.5px;
            }

            .hero-subtitle {
                font-size: clamp(14px, 3.5vw, 16px);
                letter-spacing: 1px;
            }

            .section {
                padding: 30px 20px;
            }

            .section-title h2 {
                font-size: 36px;
                letter-spacing: 1.5px;
            }

            .section-title h2::after {
                width: 80px;
                height: 4px;
            }

            .section-title h2::before {
                bottom: -38px;
                font-size: 10px;
            }

            .section-title p {
                font-size: 15px;
                margin-top: 10px;
                padding: 0 25px;
                letter-spacing: 0.8px;
            }

            .section-title p::before,
            .section-title p::after {
                font-size: 16px;
            }

            .section-title p::before {
                left: 20px;
            }

            .section-title p::after {
                right: 20px;
            }

            .concept-section {
                padding: 20px 0;
            }

            .concept-inner {
                padding: 32px 20px;
                border-radius: 16px;
                min-height: 340px; 
            }

            .concept-icon {
                width: 70px;
                height: 70px;
                font-size: 40px;
                margin-bottom: 18px; 
            }

            .concept-card h3 {
                font-size: clamp(18px, 4.5vw, 18px);
                margin-bottom: 12px;
                line-height: 1.4;
                min-height: 50px; 
            }

            .concept-card p {
                font-size: 13px;
                line-height: 1.7;
                text-align: left;
            }

            .about-section {
                padding-left: 0;
                padding-right: 0;
            }

            .about-section .about-content {
                padding: 0 20px;
            }

            .founder-section {
                padding-left: 0;
                padding-right: 0;
            }

            .founder-section .section-title,
            .founder-section .founder-content {
                padding: 10px 20px;
            }

            .about-content,
            .founder-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .about-slider {
                height: 300px;
            }

            .about-dots {
                bottom: 15px;
            }

            .about-dot {
                width: 8px;
                height: 8px;
            }

            .about-dot.active {
                transform: scale(1.3);
            }

            .founder-image img {
                height: auto;
            }

            .about-text h2,
            .founder-info h3 {
                font-size: clamp(28px, 7vw, 32px);
            }

            .about-text p,
            .founder-info p {
                font-size: clamp(16px, 3.5vw, 16px);
            }

            .contact-section {
                padding-left: 0;
                padding-right: 0;
            }

            .contact-section .section-title,
            .contact-section .contact-grid {
                padding: 15px 20px;
            }

            .market-grid,
            .trend-cards,
            .contact-grid {
                grid-template-columns: 1fr;
            }

            .ai-features {
                grid-template-columns: repeat(2, 1fr); 
                gap: 16px;
            }

            .ai-card {
                padding: 20px 16px;
                min-height: 100%;
                text-align: justify;
            }

            .ai-number {
                font-size: 36px;
                top: 14px;
                right: 14px;
            }

            .ai-card h3 {
                font-size: clamp(15px, 4vw, 15px);
                margin-bottom: 12px;
                min-height: 42px;
            }

            .ai-card p {
                font-size: 12px;
                line-height: 1.7;
            }

            .trend-number {
                font-size: 56px;
            }

            .trend-card h3 {
                font-size: clamp(20px, 5vw, 22px);
            }
        }

        @media (max-width: 480px) {
            .nav-container {
                padding: 0 12px;
                height: 60px;
                min-height: 60px;
            }

            .brand-logo {
                font-size: clamp(42px, 7vw, 32px);
            }

            .brand-name {
                font-size: clamp(18px, 3.2vw, 14px);
            }

            .brand-slogan {
                font-size: clamp(10px, 1.5vw, 10px);
            }

            .mobile-tagline {
                font-size: 14px;
                padding: 3px 10px;
            }

            .mobile-call-btn {
                width: 36px;
                height: 36px;
                font-size: 20px;
            }

            .hero-section {
                height: 230px;
            }

            .hero-slogan {
                font-size: clamp(24px, 6vw, 28px);
            }

            .hero-subtitle {
                font-size: clamp(12px, 3.2vw, 14px);
            }

            .section-title h2 {
                font-size: 28px;
            }

            .concept-inner {
                padding: 32px 20px;
            }

            .market-card,
            .ai-card,
            .trend-card,
            .contact-card {
                /* padding: 30px 20px; */
            }

            .hero-dots {
                bottom: 15px;
            }

            .hero-dot {        /* ========== 全局样式 ========== */
        :root {
            --primary: #00616C;
            --primary-light: #007A88;
            --primary-dark: #004D56;
            --accent: #D4AF37;
            --accent-light: #E5C55A;
            --text-main: #1a1a1a;
            --text-sub: #666666;
            --bg-light: #F9FAFB;
            --white: #FFFFFF;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 12px 60px rgba(0, 0, 0, 0.15);
            --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        html, body {
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden !important;
        touch-action: manipulation !important;
        -webkit-text-size-adjust: 100% !important;
        text-size-adjust: 100% !important;
        }

        input, textarea, select {
        font-size: 16px !important;
        border-radius: 10px;
        border: 1.5px solid var(--accent);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            color: var(--text-main);
            line-height: 1.8;
            overflow-x: hidden;
            background: var(--white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            text-rendering: optimizeLegibility;
        }

        /* ========== 头部导航 ========== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            -webkit-backdrop-filter: saturate(180%) blur(10px);
            backdrop-filter: saturate(180%) blur(10px);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            -webkit-transform: translateZ(0);
            transform: translateZ(0);
            will-change: transform;
        }

        @media (max-width: 768px) {
            .header {
                background: #e5e5e5ad;
                box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
            }
        }

        .header.scrolled {
            box-shadow: 0px 1px 2px rgb(0 0 0 / 18%);
        }

        .nav-container {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 60px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 90px;
            padding-left: max(60px, env(safe-area-inset-left));
            padding-right: max(60px, env(safe-area-inset-right));
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            -webkit-tap-highlight-color: transparent;
            tap-highlight-color: transparent;
        }

        .brand-logo {
            font-size: clamp(32px, 4.5vw, 50px);
            transition: var(--transition);
            color: var(--accent);
            line-height: 1;
            flex-shrink: 0;
        }

        .brand:hover .brand-logo {
            transform: scale(1.05);
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            gap: clamp(0px, 0.1vw, 0px);
            line-height: 1.2;
            min-width: 0;
        }

        .brand-name {
            font-size: clamp(14px, 2vw, 19px);
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.05em;
            line-height: 1.3;
            white-space: nowrap;
        }

        .brand-slogan {
            font-size: clamp(8px, 1vw, 11px);
            font-weight: 500;
            color: var(--accent);
            letter-spacing: 0.12em;
            line-height: 1;
            text-transform: uppercase;
        }

        .nav-menu {
            display: flex;
            gap: clamp(16px, 3vw, 32px);
            list-style: none;
            flex-wrap: nowrap;
        }

        .nav-menu a {
            text-decoration: none;
            color: var(--text-main);
            font-size: clamp(13px, 1.4vw, 15px);
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            padding: 8px 16px;
            border-radius: 8px;
            -webkit-tap-highlight-color: transparent;
            cursor: pointer;
            white-space: nowrap;
        }

        .nav-menu a:hover {
            color: var(--accent); 
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)); 
            box-shadow: 0 4px 16px rgba(0, 97, 108, 0.3);
        }

        .nav-menu a.active {
            color: var(--accent); 
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)); 
            box-shadow: 0 4px 16px rgba(0, 97, 108, 0.3);
        }

        .mobile-phone {
            display: none;
            font-size: clamp(13px, 1.4vw, 15px);
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 1px;
        }

        .mobile-call-btn {
            display: none;
            width: clamp(36px, 5vw, 40px);
            height: clamp(36px, 5vw, 40px);
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: white;
            font-size: clamp(18px, 2.5vw, 22px);
            align-items: center;
            justify-content: center;
            text-decoration: none;
            transition: var(--transition);
            -webkit-tap-highlight-color: transparent;
            box-shadow: 0 2px 12px rgba(212, 175, 55, 0.4);
            flex-shrink: 0;
        }

        .mobile-call-btn:active {
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            transform: scale(0.95);
        }

        .mobile-tagline {
            display: none;
            padding: 6px 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            font-size: clamp(11px, 1.5vw, 13px);
            font-weight: 600;
            border-radius: 20px;
            letter-spacing: 1px;
            box-shadow: 0 2px 8px rgba(0, 97, 108, 0.3);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .hero-section {
            margin-top: 90px;
            position: relative;
            height: 700px;
            overflow: hidden;
        }

        .hero-slider {
            position: relative;
            width: 100%;
            height: 100%;
        }

        .hero-slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 1s ease-in-out;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-slide.active {
            opacity: 1;
        }

        .hero-slide::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(0, 97, 108, 0.8) 0%, rgba(0, 77, 86, 0.65) 50%, rgba(0, 97, 108, 0.8) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: var(--white);
            max-width: 900px;
            padding: 0 40px;
            animation: fadeInUp 1s ease;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero-slogan {
            font-size: clamp(36px, 5vw, 64px);
            font-weight: 800;
            margin-bottom: 24px;
            letter-spacing: 3px;
            text-shadow: 0 4px 24px rgba(0, 0, 0, 0.3), 0 0 40px rgba(212, 175, 55, 0.2);
            line-height: 1.2;
            background: linear-gradient(to bottom, #ffffff 0%, var(--accent-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: clamp(16px, 2vw, 22px);
            font-weight: 400;
            opacity: 0.95;
            letter-spacing: 2px;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.95);
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }

        .hero-dots {
            position: absolute;
            bottom: 40px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 12px;
            z-index: 10;
        }

        .hero-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: var(--transition);
        }

        .hero-dot.active {
            background: var(--accent);
            transform: scale(1.2);
        }

        .section {
            padding: 120px 60px;
            max-width: 1440px;
            margin: 0 auto;
        }

        .section-title {
            text-align: center;
            margin-bottom: 30px;
            position: relative;
        }

        .section-title::before {
            content: '';
            position: absolute;
            top: -30px;
            left: 50%;
            transform: translateX(-50%);
            width: 120px;
            height: 120px;
            background: radial-gradient(circle, rgba(212, 175, 55, 0.08) 0%, transparent 70%);
            z-index: 0;
        }

        .section-title h2 {
            font-size: clamp(32px, 4vw, 52px);
            font-weight: 900;
            background: linear-gradient(135deg, #ffc300 0%, #dea107 50%, #ffc400 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 20px;
            position: relative;
            display: inline-block;
            letter-spacing: 0.04em;
            text-shadow: 0 2px 10px rgba(0, 97, 108, 0.1);
            z-index: 1;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -12px;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 5px;
            background: linear-gradient(90deg, 
                transparent 0%, 
                var(--accent) 20%, 
                var(--primary) 50%, 
                var(--accent-light) 80%, 
                transparent 100%
            );
            border-radius: 3px;
            box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
        }

        .section-title h2::before {
            content: '';
            position: absolute;
            bottom: -42px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 12px;
            color: var(--accent);
            opacity: 0.6;
        }

        .section-title p {
            font-size: clamp(14px, 1.6vw, 18px);
            color: #64748b;
            margin-top: 50px;
            letter-spacing: 1px;
            font-weight: 400;
            line-height: 1.8;
            position: relative;
            padding: 0 40px;
        }

        .section-title p::before,
        .section-title p::after {
            content: '';
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            color: var(--accent);
            opacity: 0.4;
            font-size: 20px;
            letter-spacing: 2px;
        }

        .section-title p::before {
            left: 10px;
        }

        .section-title p::after {
            right: 10px;
        }

        .concept-section {
            background: var(--bg-light);
            padding: 120px 0;
        }

        .concept-carousel {
            position: relative;
            max-width: 1400px;
            margin: 0 auto;
        }

        .concept-carousel::after {
            content: '';
            display: none;
        }

        @media (max-width: 768px) {
            .concept-carousel::after {
                content: '';
                display: block;
                text-align: center;
                color: var(--text-sub);
                font-size: 12px;
                margin-top: 16px;
                opacity: 0.5;
                pointer-events: none;
                letter-spacing: 0.5px;
            }
        }

        .concept-track {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            padding: 0;
            max-width: 1200px; 
            margin: 0 auto; 
        }

        @media (max-width: 768px) {
            .concept-track {
                display: flex;
                gap: 16px;
                overflow-x: auto;
                scroll-snap-type: x mandatory;
                -webkit-overflow-scrolling: touch; 
                scrollbar-width: none;
                -ms-overflow-style: none;
                padding: 0 16px;
                cursor: grab;
                justify-content: center;
                scroll-behavior: smooth; 
                will-change: scroll-position; 
            }

            .concept-track::-webkit-scrollbar {
                display: none;
            }

            .concept-track:active {
                cursor: grabbing;
            }

            .concept-card {
                width: calc(100vw - 32px); 
                max-width: 400px; 
                min-width: calc(100vw - 32px);
                flex-shrink: 0;
                scroll-snap-align: center; 
                box-sizing: border-box;
            }
        }

        .concept-inner {
            background: var(--white);
            border-radius: 20px;
            padding: 50px 35px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            border: 2px solid rgba(212, 175, 55, 0.1);
            height: 100%;
            min-height: 380px;
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            align-items: center;
            position: relative;
            overflow: hidden;
            box-sizing: border-box;
        }

        .concept-inner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--primary));
        }

        .concept-icon {
            width: 90px;
            height: 90px;
            margin: 0 auto 24px; 
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 40px;
            color: var(--white);
            box-shadow: 0 8px 24px rgba(212, 175, 55, 0.3);
            transition: var(--transition);
            flex-shrink: 0; 
        }

        .concept-inner:hover .concept-icon {
            transform: scale(1.1) rotate(5deg);
        }

        .concept-card h3 {
            font-size: clamp(20px, 2.5vw, 24px);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px; 
            letter-spacing: 0.3px;
            line-height: 1.4;
            min-height: 68px; 
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .concept-card p {
            font-size: clamp(13px, 1.4vw, 15px);
            color: var(--text-sub);
            line-height: 1.9;
            letter-spacing: 0.2px;
            text-align: justify;
            margin: 0;
            flex: 1; 
        }

        .concept-nav {
            display: none;
            justify-content: center;
            gap: 20px;
            margin-top: 40px;
        }

        .concept-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            border: 2px solid var(--primary);
            background: var(--white);
            color: var(--primary);
            font-size: 20px;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .concept-btn:hover {
            background: var(--primary);
            color: var(--white);
            transform: scale(1.1);
        }

        .concept-indicators {
            display: none;
            justify-content: center;
            gap: 12px;
            margin-top: 30px;
        }

        .concept-indicator {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--border);
            cursor: pointer;
            transition: var(--transition);
        }

        .concept-indicator.active {
            background: var(--accent);
            width: 30px;
            border-radius: 5px;
        }

        .market-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .market-card {
            background: var(--white);
            border-radius: 20px;
            padding: 35px 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 2px solid rgba(212, 175, 55, 0.08);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .market-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--primary));
            transform: scaleX(0);
            transition: var(--transition);
        }

        .market-card:hover {
            transform: translateY(-12px);
            box-shadow: var(--shadow-xl);
            border-color: var(--accent);
        }

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

        .market-icon {
            width: 90px;
            height: 90px;
            margin: 0 auto 28px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 40px;
            color: var(--white);
            box-shadow: 0 8px 24px rgba(212, 175, 55, 0.3);
            transition: var(--transition);
        }

        .market-card:hover .market-icon {
            transform: scale(1.1) rotate(5deg);
        }

        .market-card h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .market-card p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.9;
            letter-spacing: 0.2px;
        }

        .about-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: var(--white);
            width: 100%;
            max-width: 100%;
            padding-left: 0;
            padding-right: 0;
        }

        .about-section .about-content {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 60px;
        }

        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .about-text h2 {
            font-size: 48px;
            font-weight: 800;
            margin-bottom: 32px;
            letter-spacing: 1px;
        }

        .about-text p {
            font-size: clamp(16px, 1.8vw, 18px);
            line-height: 2.2;
            opacity: 0.95;
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }

        .about-image {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow-xl);
        }

        .about-slider {
            position: relative;
            width: 100%;
            height: 450px;
            overflow: hidden;
        }

        .about-slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 0.8s ease-in-out;
        }

        .about-slide.active {
            opacity: 1;
        }

        .about-slide img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.8s ease;
        }

        .about-slide.active img {
            transform: scale(1.05);
        }

        .about-dots {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
            z-index: 10;
        }

        .about-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid rgba(255, 255, 255, 0.8);
        }

        .about-dot.active {
            background: var(--accent);
            border-color: var(--accent);
            transform: scale(1.3);
        }

        .about-dot:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
        }

        .ai-features {
            display: grid;
            grid-template-columns: repeat(4, 1fr); 
            gap: 24px;
        }

        .ai-card {
            background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
            border-radius: 16px;
            padding: 35px 28px;
            box-shadow: 0 4px 16px rgba(212, 175, 55, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            border: 2px solid rgba(212, 175, 55, 0.08);
            min-height: 280px;
            display: flex;
            flex-direction: column;
        }

        .ai-number {
            position: absolute;
            top: 16px;
            right: 18px;
            font-size: 42px;
            font-weight: 900;
            background: linear-gradient(135deg, rgba(212, 175, 55, 0.15), rgba(0, 97, 108, 0.1));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1;
            font-family: 'Arial', sans-serif;
            z-index: 0;
        }

        .ai-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--primary), var(--primary-light));
            box-shadow: 0 2px 6px rgba(0, 97, 108, 0.2);
        }

        .ai-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 32px rgba(212, 175, 55, 0.15), 0 4px 12px rgba(0, 0, 0, 0.06);
            border-color: rgba(212, 175, 55, 0.2);
        }

        .ai-card h3 {
            font-size: clamp(16px, 2vw, 18px);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.3px;
            line-height: 1.4;
            position: relative;
            z-index: 1;
            min-height: 50px; 
        }

        .ai-card p {
            font-size: clamp(13px, 1.5vw, 14px);
            color: #4a5568;
            line-height: 1.8;
            letter-spacing: 0.2px;
            position: relative;
            z-index: 1;
            flex: 1; 
        }

        .founder-section {
            background: var(--bg-light);
            width: 100%;
            max-width: 100%;
            padding-left: 0;
            padding-right: 0;
        }

        .founder-section .section-title,
        .founder-section .founder-content {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 60px;
        }

        .founder-content {
            display: grid;
            grid-template-columns: 400px 1fr;
            gap: 60px;
            align-items: center;
        }

        .founder-image {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow-xl);
        }

        .founder-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            display: block;
            transition: var(--transition);
        }

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

        .founder-info h3 {
            font-size: clamp(32px, 4vw, 40px);
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

        .founder-info .subtitle {
            font-size: clamp(17px, 1.9vw, 19px);
            color: var(--accent);
            margin-bottom: 32px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .founder-info p {
            font-size: clamp(15px, 1.7vw, 17px);
            line-height: 2.2;
            color: var(--text-sub);
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }

        .douyin-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #FE2C55, #FF0050);
            color: white;
            padding: 12px 24px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            margin-top: 20px;
            text-decoration: none;
            transition: var(--transition);
            box-shadow: 0 4px 12px rgba(254, 44, 85, 0.3);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .douyin-badge::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            border: 2px solid var(--accent);
            border-radius: 30px;
            opacity: 0.3;
        }

        .douyin-badge:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(254, 44, 85, 0.4);
        }

        .douyin-badge:active {
            transform: translateY(0);
        }

        .trend-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .trend-card {
            background: var(--white);
            border-radius: 20px;
            padding: 60px 45px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 2px solid rgba(212, 175, 55, 0.06);
        }

        .trend-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--primary));
            transform: scaleX(0);
            transition: var(--transition);
        }

        .trend-card:hover {
            transform: translateY(-12px);
            box-shadow: var(--shadow-xl);
            border-color: rgba(212, 175, 55, 0.15);
        }

        .trend-card:hover::after {
            transform: scaleX(1);
        }

        .trend-number {
            font-size: 72px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 24px;
            line-height: 1;
        }

        .trend-card h3 {
            font-size: clamp(22px, 2.8vw, 26px);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }

        .trend-card p {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 2;
            letter-spacing: 0.2px;
        }

        .brand-concept-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            width: 100%;
            max-width: 100%;
            padding-left: 0;
            padding-right: 0;
            position: relative;
            overflow: hidden;
            min-height: 500px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .brand-concept-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            opacity: 0.1;
            pointer-events: none;
        }

        .bg-logo {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .brand-concept-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 1200px;
            margin: 0 auto;
            padding: 80px 60px;
        }

        .brand-title {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 700;
            color: var(--accent-light);
            margin-bottom: 24px;
            letter-spacing: 0.15em;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }

        .brand-slogan {
            font-size: clamp(8px, 3vw, 10px);
            font-weight: 350;
            color: #cfae47;
            /* margin-bottom: 20px; */
            letter-spacing: 0.07em;
            line-height: 1.4;
            text-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
        }

        .brand-english {
            font-size: clamp(14px, 1.8vw, 20px);
            color: rgba(255, 255, 255, 0.8);
            letter-spacing: 0.1em;
            font-weight: 400;
        }

        .brand-decoration {
            position: absolute;
            top: 40px;
            right: 60px;
        }

        .profile-decoration {
            max-width: 200px;
            opacity: 0.6;
        }

        .brand-vision-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        }

        .vision-cards {
            max-width: 1000px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

        .vision-card {
            background: var(--white);
            border-radius: 20px;
            padding: 50px;
            display: flex;
            align-items: flex-start;
            gap: 32px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            transition: var(--transition);
            border: 2px solid rgba(212, 175, 55, 0.1);
            position: relative;
            overflow: hidden;
        }

        .vision-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
        }

        .vision-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 40px rgba(212, 175, 55, 0.2), 0 4px 12px rgba(0, 0, 0, 0.1);
            border-color: var(--accent);
        }

        .vision-icon {
            font-size: 64px;
            flex-shrink: 0;
        }

        .vision-content h3 {
            font-size: clamp(20px, 2.5vw, 26px);
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .vision-content p {
            font-size: clamp(15px, 1.6vw, 17px);
            color: var(--text-sub);
            line-height: 2;
            letter-spacing: 0.02em;
        }

        .product-series-section {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            width: 100%;
            max-width: 100%;
            padding-left: 0;
            padding-right: 0;
        }

        .product-series-section .section-title,
        .product-series-section .product-series-grid {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 60px;
        }

        .product-series-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }

        .product-series-card {
            background: var(--white);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            border: 2px solid rgba(212, 175, 55, 0.06);
        }

        .product-series-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 40px rgba(212, 175, 55, 0.2), 0 4px 12px rgba(0, 0, 0, 0.1);
            border-color: var(--accent);
        }

        .series-header {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 32px 40px;
            display: flex;
            align-items: center;
            gap: 20px;
            position: relative;
            overflow: hidden;
        }

        .series-header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light), var(--accent));
        }

        .series-header h3 {
            font-size: clamp(22px, 2.8vw, 28px);
            font-weight: 700;
            color: var(--white);
            margin: 0;
        }

        .series-type {
            font-size: clamp(14px, 1.5vw, 16px);
            color: rgba(255, 255, 255, 0.9);
            letter-spacing: 0.03em;
        }

        .series-content {
            padding: 40px;
            display: flex;
            gap: 32px;
            align-items: center;
        }

        .series-image img,
        .series-images {
            max-width: 300px;
            flex-shrink: 0;
        }

        .series-images {
            display: flex;
            gap: 16px;
        }

        .window-img {
            max-width: 140px;
        }

        .series-list {
            list-style: none;
            padding: 0;
            margin: 0;
            flex: 1;
        }

        .series-list li {
            font-size: clamp(15px, 1.5vw, 17px);
            color: var(--text-main);
            padding: 12px 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            letter-spacing: 0.02em;
        }

        .series-list li:last-child {
            border-bottom: none;
        }

        .engineering-structure-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            width: 100%;
            max-width: 100%;
            padding-left: 0;
            padding-right: 0;
        }

        .engineering-structure-content {
            max-width: 1440px;
            margin: 0 auto;
            padding: 80px 60px;
        }

        .structure-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .structure-header h2 {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 20px;
            letter-spacing: 0.05em;
        }

        .structure-subtitle {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 24px;
        }

        .structure-subtitle span {
            font-size: clamp(18px, 2.2vw, 24px);
            color: var(--white);
            font-weight: 600;
        }

        .self-research {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary) !important;
            padding: 8px 24px;
            border-radius: 20px;
            font-size: clamp(16px, 1.8vw, 18px) !important;
            font-weight: 700 !important;
            box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
        }

        .structure-body {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .structure-features h3 {
            font-size: clamp(22px, 2.5vw, 28px);
            font-weight: 700;
            color: var(--white);
            margin-bottom: 32px;
        }

        .features-list {
            list-style: none;
            padding: 0;
            margin: 0 0 40px 0;
        }

        .features-list li {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .feature-icon {
            font-size: 24px;
            flex-shrink: 0;
        }

        .feature-text {
            font-size: clamp(15px, 1.6vw, 18px);
            color: var(--white);
            letter-spacing: 0.02em;
        }

        .profile-images {
            display: flex;
            gap: 16px;
            justify-content: center;
        }

        .profile-images img {
            max-width: 80px;
            height: auto;
        }

        .structure-showcase {
            text-align: center;
        }

        .structure-showcase img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
        }

        .honor-section {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        }

        .honor-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }

        .honor-card {
            background: var(--white);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            border: 2px solid rgba(212, 175, 55, 0.06);
        }

        .honor-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 40px rgba(212, 175, 55, 0.2), 0 4px 12px rgba(0, 0, 0, 0.1);
            border-color: var(--accent);
        }

        .honor-card img {
            width: 100%;
            height: auto;
            display: block;
        }

        .honor-info {
            padding: 32px;
        }

        .honor-info h3 {
            font-size: clamp(18px, 2vw, 22px);
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .honor-info p {
            font-size: clamp(14px, 1.4vw, 16px);
            color: var(--text-sub);
            margin-bottom: 8px;
        }

        .honor-validity {
            color: var(--accent) !important;
            font-weight: 600;
            margin-top: 12px;
        }

        .cases-section {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            width: 100%;
            max-width: 100%;
            padding-left: 0;
            padding-right: 0;
        }

        .cases-section .section-title,
        .cases-section .cases-grid {
            max-width: 1440px;
            margin: 0 auto;
            /* padding: 0 60px; */
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .case-card {
            background: var(--white);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            border: 2px solid rgba(212, 175, 55, 0.06);
        }

        .case-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 40px rgba(212, 175, 55, 0.15), 0 4px 12px rgba(0, 0, 0, 0.1);
            border-color: var(--accent);
        }

        .case-image {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .case-card:hover .case-image img {
            transform: scale(1.08);
        }

        .case-overlay {
            position: absolute;
            top: 16px;
            right: 16px;
        }

        .case-tag {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--white);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
        }

        .case-info {
            padding: 24px;
        }

        .case-info h3 {
            font-size: clamp(16px, 2vw, 18px);
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        .case-info p {
            font-size: clamp(12px, 1.5vw, 14px);
            color: var(--text-light);
            letter-spacing: 0.2px;
        }

        @media (max-width: 768px) {
            .brand-concept-inner {
                padding: 60px 30px;
            }

            .brand-title {
                font-size: clamp(24px, 6vw, 32px);
                letter-spacing: 0.15em;
            }

            .brand-slogan {
                font-size: clamp(28px, 7vw, 36px);
                letter-spacing: 0.05em;
            }

            .brand-english {
                font-size: clamp(12px, 3vw, 16px);
            }

            .brand-decoration {
                display: none;
            }

            .vision-card {
                flex-direction: row;
                padding: 24px;
                gap: 16px;
                min-height: auto;
            }

            .vision-icon {
                width: 60px;
                height: 60px;
                font-size: 40px;
            }

            .vision-icon i {
                font-size: 32px;
            }

            .vision-content h3 {
                font-size: clamp(16px, 4vw, 18px);
            }

            .vision-content p {
                font-size: clamp(13px, 3.5vw, 14px);
            }

            .vision-cards {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .product-series-section .section-title,
            .product-series-section .product-series-grid {
                padding: 0 20px;
            }

            .product-series-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .series-content {
                flex-direction: column;
                padding: 24px;
            }

            .series-image img,
            .series-images {
                max-width: 100%;
            }

            .series-images {
                justify-content: center;
            }

            .series-list li {
                font-size: clamp(13px, 3.5vw, 15px);
            }

            .engineering-structure-content {
                padding: 60px 30px;
            }

            .structure-header h2 {
                font-size: clamp(24px, 6vw, 28px);
            }

            .structure-subtitle {
                flex-direction: column;
                gap: 12px;
            }

            .structure-body {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .structure-features h3 {
                font-size: clamp(18px, 4.5vw, 22px);
            }

            .feature-text {
                font-size: clamp(13px, 3.5vw, 15px);
            }

            .profile-images {
                flex-wrap: wrap;
            }

            .honor-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .honor-info {
                padding: 24px;
            }

            .honor-info h3 {
                font-size: clamp(16px, 4vw, 18px);
            }

            .honor-info p {
                font-size: clamp(12px, 3.2vw, 14px);
            }

            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .case-image {
                height: 200px;
            }

            .case-info {
                padding: 16px;
            }

            .case-info h3 {
                font-size: clamp(15px, 4vw, 15px);
            }

            .case-info p {
                font-size: clamp(12px, 3.2vw, 12px);
            }
        }

        @media (max-width: 480px) {
            .cases-grid {
                grid-template-columns: 1fr;
            }

            .case-image {
                height: 180px;
            }
        }

        @media (min-width: 769px) and (max-width: 1024px) {
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .case-image {
                height: 180px;
            }
        }

        @media (min-width: 1440px) {
            .cases-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 40px;
            }

            .case-image {
                height: 230px;
            }
        }

        .contact-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: var(--white);
            width: 100%;
            max-width: 100%;
            padding-left: 0;
            padding-right: 0;
            position: relative;
        }

        .contact-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: 
                radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(0, 0, 0, 0.15) 0%, transparent 50%);
            pointer-events: none;
        }

        .contact-section .section-title,
        .contact-section .contact-grid {
            max-width: 1440px;
            margin: 0 auto;
            padding: 0 60px;
        }

        .contact-section .section-title h2 {
            color: var(--accent) !important; 
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }

        .contact-section .section-title p {
            color: rgba(255, 255, 255, 0.9) !important;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 40px;
        }

        .contact-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: 20px;
            padding: 45px 35px;
            text-align: center;
            transition: var(--transition);
            border: 2px solid rgba(255, 255, 255, 0.3);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }

        .contact-card:hover {
            background: rgba(255, 255, 255, 1);
            transform: translateY(-12px);
            border-color: var(--accent);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25), 0 4px 16px rgba(212, 175, 55, 0.4);
        }

        .contact-icon {
            font-size: 52px;
            margin-bottom: 24px;
            filter: drop-shadow(0 4px 12px rgba(212, 175, 55, 0.2));
            color: var(--accent);
        }

        /* 微信图标绿色 */
        .contact-icon.icon-weixin1 {
            color: #07C160;
            filter: drop-shadow(0 4px 12px rgba(7, 193, 96, 0.3));
        }

        .contact-card h3 {
            font-size: clamp(18px, 2.2vw, 22px);
            font-weight: 700;
            color: var(--accent); 
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .contact-card p {
            font-size: clamp(14px, 1.6vw, 16px);
            color: #2c3e50; 
            opacity: 1;
            line-height: 1.9;
            letter-spacing: 0.2px;
        }

        /* 微信咨询卡片特殊样式 */
        .contact-card[onclick] {
            cursor: pointer;
            position: relative;
        }

        .contact-card[onclick]:hover::after {
            content: '点击复制';
            position: absolute;
            top: 10px;
            right: 10px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: white;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
        }

        .footer {
            background: #f6f8fa;
            color: #2c2c36;
            padding: 40px;
            text-align: center;
        }

        .footer p {
            font-size: clamp(12px, 1.4vw, 14px);
            opacity: 0.8;
        }

        .fade-in {
            opacity: 0;
            transform: translateY(40px);
            transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), 
                        transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (max-width: 1024px) {
            .nav-container {
                padding: 0 30px;
            }

            .section {
                padding: 80px 30px;
            }

            .hero-section {
                height: 550px;
            }

            .hero-slogan {
                font-size: 48px;
            }

            .concept-inner {
                padding: 60px 40px;
            }
        }

        @media (max-width: 768px) {
            .nav-container {
                padding: 0 20px;
                height: 70px;
                padding-left: max(20px, env(safe-area-inset-left));
                padding-right: max(20px, env(safe-area-inset-right));
            }

            .brand-logo {
                font-size: clamp(28px, 6vw, 40px);
            }

            .brand-name {
                font-size: clamp(13px, 2.8vw, 16px);
            }

            .brand-slogan {
                font-size: clamp(7px, 1.2vw, 9px);
            }

            .mobile-tagline {
                display: block;
                font-size: clamp(10px, 1.8vw, 12px);
                padding: 4px 12px;
            }

            .mobile-call-btn {
                display: flex;
                width: clamp(32px, 5vw, 38px);
                height: clamp(32px, 5vw, 38px);
                font-size: clamp(16px, 3vw, 20px);
            }

            .nav-menu {
                display: none;
            }

            .mobile-phone {
                display: flex;
            }

            .hero-section {
                margin-top: 60px;
                height: 260px;
            }

            .hero-slogan {
                font-size: clamp(28px, 7vw, 32px);
                letter-spacing: 1.5px;
            }

            .hero-subtitle {
                font-size: clamp(14px, 3.5vw, 16px);
                letter-spacing: 1px;
            }

            .section {
                padding: 30px 20px;
            }

            .section-title h2 {
                font-size: 36px;
                letter-spacing: 1.5px;
            }

            .section-title h2::after {
                width: 80px;
                height: 4px;
            }

            .section-title h2::before {
                bottom: -38px;
                font-size: 10px;
            }

            .section-title p {
                font-size: 15px;
                margin-top: 10px;
                padding: 0 25px;
                letter-spacing: 0.8px;
            }

            .section-title p::before,
            .section-title p::after {
                font-size: 16px;
            }

            .section-title p::before {
                left: 20px;
            }

            .section-title p::after {
                right: 20px;
            }

            .concept-section {
                padding: 20px 0;
            }

            .concept-inner {
                padding: 32px 20px;
                border-radius: 16px;
                min-height: 340px; 
            }

            .concept-icon {
                width: 70px;
                height: 70px;
                font-size: 40px;
                margin-bottom: 18px; 
            }

            .concept-card h3 {
                font-size: clamp(18px, 4.5vw, 18px);
                margin-bottom: 12px;
                line-height: 1.4;
                min-height: 50px; 
            }

            .concept-card p {
                font-size: 13px;
                line-height: 1.7;
                text-align: left;
            }

            .about-section {
                padding-left: 0;
                padding-right: 0;
            }

            .about-section .about-content {
                padding: 0 20px;
            }

            .founder-section {
                padding-left: 0;
                padding-right: 0;
            }

            .founder-section .section-title,
            .founder-section .founder-content {
                padding: 0 20px;
            }

            .about-content,
            .founder-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .about-slider {
                height: 300px;
            }

            .about-dots {
                bottom: 15px;
            }

            .about-dot {
                width: 8px;
                height: 8px;
            }

            .about-dot.active {
                transform: scale(1.3);
            }

            .founder-image img {
                height: auto;
            }

            .about-text h2,
            .founder-info h3 {
                font-size: clamp(28px, 7vw, 32px);
            }

            .about-text p,
            .founder-info p {
                font-size: clamp(14px, 3.5vw, 16px);
            }

            .contact-section {
                padding-left: 0;
                padding-right: 0;
            }

            .contact-section .section-title,
            .contact-section .contact-grid {
                padding: 0 20px;
            }

            .market-grid,
            .trend-cards,
            .contact-grid {
                grid-template-columns: 1fr;
            }

            .ai-features {
                grid-template-columns: repeat(2, 1fr); 
                gap: 16px;
            }

            .ai-card {
                padding: 20px 16px;
                min-height: 100%;
                text-align: justify;
            }

            .ai-number {
                font-size: 36px;
                top: 14px;
                right: 14px;
            }

            .ai-card h3 {
                font-size: clamp(15px, 4vw, 15px);
                margin-bottom: 12px;
                min-height: 42px;
            }

            .ai-card p {
                font-size: 12px;
                line-height: 1.7;
            }

            .trend-number {
                font-size: 56px;
            }

            .trend-card h3 {
                font-size: clamp(20px, 5vw, 22px);
            }
        }

        @media (max-width: 480px) {
            .nav-container {
                padding: 0 12px;
                height: 60px;
                min-height: 60px;
            }

            .brand-logo {
                font-size: clamp(42px, 7vw, 32px);
            }

            .brand-name {
                font-size: clamp(18px, 3.2vw, 14px);
            }

            .brand-slogan {
                font-size: clamp(10px, 1.5vw, 10px);
            }

            .mobile-tagline {
                font-size: 13px;
                padding: 3px 10px;
            }

            .mobile-call-btn {
                width: 36px;
                height: 36px;
                font-size: 20px;
            }

            .hero-section {
                height: 230px;
            }

            .hero-slogan {
                font-size: clamp(24px, 6vw, 28px);
            }

            .hero-subtitle {
                font-size: clamp(12px, 3.2vw, 14px);
            }

            .section-title h2 {
                font-size: 28px;
            }

            .concept-inner {
                padding: 32px 20px;
            }

            .market-card,
            .ai-card,
            .trend-card,
            .contact-card {
                /* padding: 30px 20px; */
            }

            .hero-dots {
                bottom: 15px;
            }

            .hero-dot {
                width: 8px;
                height: 8px;
            }

            .hero-dot.active {
                background: var(--accent);
                transform: scale(1.3);
            }
        }
                width: 8px;
                height: 8px;
            }

            .hero-dot.active {
                background: var(--accent);
                transform: scale(1.3);
            }

            
        }