:root {
            --bg-primary: #f4f8fc;
            --bg-secondary: #edf5ff;
            --bg-card: rgba(255,255,255,0.92);
            --gold: #e8832b;
            --gold-light: #f0a050;
            --text-primary: #0b1b33;
            --text-secondary: #55657a;
            --accent: #0e5fb8;
            --accent-light: #2a9de3;
            --gradient-gold: linear-gradient(135deg, #e8832b, #f0a050);
            --gradient-dark: linear-gradient(180deg, #edf5ff 0%, #f7fbff 100%);
            --shadow-card: 0 24px 60px rgba(9,26,49,0.12);
            --shadow-gold: 0 4px 20px rgba(232,131,43,0.15);
            --radius: 12px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
        }

        /* ===== 导航栏 ===== */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(11,27,51,0.08);
            transition: var(--transition);
        }
        .navbar.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.1); }
        .nav-inner {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: var(--text-primary);
            font-size: 0.95rem;
            font-weight: 700;
            letter-spacing: 1px;
        }
        .nav-logo .icon {
            width: 42px;
            height: 42px;
            background: var(--gradient-gold);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            font-weight: 900;
        }
        /* 电话号码跳动动画 */
        .phone-digit {
            display: inline-block;
            animation: digitBounce 0.8s ease-in-out infinite;
        }
        .phone-digit:nth-child(1) { color: #e74c3c; animation-delay: 0s; }
        .phone-digit:nth-child(2) { color: #e8832b; animation-delay: 0.07s; }
        .phone-digit:nth-child(3) { color: #f1c40f; animation-delay: 0.14s; }
        .phone-digit:nth-child(4) { color: #2ecc71; animation-delay: 0.21s; }
        .phone-digit:nth-child(5) { color: #1abc9c; animation-delay: 0.28s; }
        .phone-digit:nth-child(6) { color: #3498db; animation-delay: 0.35s; }
        .phone-digit:nth-child(7) { color: #9b59b6; animation-delay: 0.42s; }
        .phone-digit:nth-child(8) { color: #e74c3c; animation-delay: 0.49s; }
        .phone-digit:nth-child(9) { color: #e8832b; animation-delay: 0.56s; }
        .phone-digit:nth-child(10) { color: #f1c40f; animation-delay: 0.63s; }
        .phone-digit:nth-child(11) { color: #2ecc71; animation-delay: 0.7s; }
        @keyframes digitBounce {
            0%, 100% { transform: translateY(0); }
            30% { transform: translateY(-6px); }
            60% { transform: translateY(0); }
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }
        .nav-links a {
            color: var(--text-secondary);
            text-decoration: none;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.9rem;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-links a:hover, .nav-links a.active {
            color: var(--gold);
            background: rgba(232,131,43,0.08);
        }
        .nav-cta {
            background: var(--gradient-gold) !important;
            color: #fff !important;
            font-weight: 600 !important;
            padding: 10px 20px !important;
        }
        .nav-cta:hover { box-shadow: var(--shadow-gold); transform: translateY(-1px); }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px;
        }

        /* ===== 英雄区 ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 120px 24px 80px;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(14,95,184,0.06) 0%, transparent 70%);
            animation: heroGlow 8s ease-in-out infinite;
        }
        @keyframes heroGlow {
            0%, 100% { transform: translate(0, 0); }
            50% { transform: translate(2%, -2%); }
        }
        .hero-content { position: relative; z-index: 1; max-width: 900px; }
        .hero-badge {
            display: inline-block;
            padding: 6px 18px;
            border: 1px solid rgba(14,95,184,0.3);
            border-radius: 50px;
            color: var(--accent);
            font-size: 0.85rem;
            margin-bottom: 24px;
            letter-spacing: 2px;
        }
        .hero h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--text-primary);
        }
        .hero p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 650px;
            margin: 0 auto 36px;
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        .stat-item {
            text-align: center;
            padding: 16px 24px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid rgba(11,27,51,0.08);
            transition: var(--transition);
        }
        .stat-item:hover { border-color: rgba(232,131,43,0.3); transform: translateY(-2px); }
        .stat-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--gold);
            display: block;
        }
        .stat-label { font-size: 0.8rem; color: var(--text-secondary); margin-top: 4px; }

        /* ===== 通用区块 ===== */
        .section {
            padding: 80px 24px;
            max-width: 1300px;
            margin: 0 auto;
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header .badge {
            display: inline-block;
            padding: 4px 14px;
            border: 1px solid rgba(14,95,184,0.25);
            border-radius: 50px;
            color: var(--accent);
            font-size: 0.8rem;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .section-header p {
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        /* ===== 产品卡片 ===== */
        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
            gap: 24px;
        }
        .product-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px;
            border: 1px solid rgba(11,27,51,0.08);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .product-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-gold);
            opacity: 0;
            transition: var(--transition);
        }
        .product-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: rgba(232,131,43,0.2);
        }
        .product-card:hover::before { opacity: 1; }
        .product-icon {
            width: 56px;
            height: 56px;
            background: rgba(232,131,43,0.08);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: 20px;
        }
        .product-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
        .product-card .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 12px;
        }
        .product-card .tag {
            padding: 3px 10px;
            background: rgba(14,95,184,0.08);
            color: var(--accent);
            border-radius: 4px;
            font-size: 0.75rem;
        }
        .product-card .desc {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* ===== 产品详情区 ===== */
        .detail-section {
            background: var(--bg-secondary);
            padding: 80px 24px;
        }
        .detail-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
            gap: 28px;
            max-width: 1300px;
            margin: 0 auto;
        }
        .detail-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid rgba(11,27,51,0.08);
            transition: var(--transition);
        }
        .detail-card:hover {
            border-color: rgba(232,131,43,0.25);
            box-shadow: var(--shadow-card);
        }
        .detail-card-header {
            padding: 28px 28px 0;
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }
        .detail-card-header .num {
            width: 40px;
            height: 40px;
            background: var(--gradient-gold);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .detail-card-header h3 { font-size: 1.15rem; line-height: 1.4; margin: 0; }
        .detail-card-header > div { display: flex; align-items: flex-start; gap: 12px; flex: 1; }
        .detail-icon {
            width: 48px;
            height: 48px;
            background: rgba(232,131,43,0.08);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .detail-card-body { padding: 20px 28px 28px; }
        .detail-card-body .info-row {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            margin-bottom: 8px;
            font-size: 0.88rem;
            color: var(--text-secondary);
        }
        .detail-card-body .info-row .label {
            color: var(--gold);
            flex-shrink: 0;
            font-weight: 600;
        }
        .detail-card-body .keywords {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 14px;
            padding-top: 14px;
            border-top: 1px solid rgba(11,27,51,0.08);
        }
        .detail-card-body .kw {
            padding: 3px 10px;
            background: rgba(232,131,43,0.08);
            color: var(--gold);
            border-radius: 4px;
            font-size: 0.75rem;
        }

        /* ===== 视频宣传区 ===== */
        .video-section {
            padding: 80px 24px;
            max-width: 1300px;
            margin: 0 auto;
        }
        .video-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
            gap: 28px;
        }
        .video-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid rgba(11,27,51,0.08);
            transition: var(--transition);
        }
        .video-card:hover {
            border-color: rgba(232,131,43,0.25);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .video-wrapper {
            position: relative;
            width: 100%;
            padding-top: 56.25%;
            background: #000;
            overflow: hidden;
        }
        .video-wrapper iframe,
        .video-wrapper video {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: none;
        }
        .video-placeholder {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #0b1b33 0%, #1a3355 100%);
            cursor: pointer;
            transition: var(--transition);
        }
        .video-placeholder:hover { background: linear-gradient(135deg, #1a3355 0%, #254a70 100%); }
        .video-placeholder .play-icon {
            width: 64px;
            height: 64px;
            background: var(--gradient-gold);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: #0a1628;
            margin-bottom: 12px;
            animation: pulse 2s ease-in-out infinite;
        }
        @keyframes pulse {
            0%, 100% { box-shadow: 0 0 0 0 rgba(212,168,83,0.4); }
            50% { box-shadow: 0 0 0 20px rgba(212,168,83,0); }
        }
        .video-placeholder .text {
            color: var(--text-secondary);
            font-size: 0.85rem;
        }
        .video-info {
            padding: 20px;
        }
        .video-info h4 { font-size: 1rem; margin-bottom: 6px; }
        .video-info p { font-size: 0.82rem; color: var(--text-secondary); }
        .video-source {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 10px;
            background: rgba(0,0,0,0.05);
            border-radius: 4px;
            font-size: 0.72rem;
            color: #ff4d6a;
            margin-top: 8px;
        }

        /* ===== 动图展示区 ===== */
        .animation-section {
            background: var(--bg-secondary);
            padding: 80px 24px;
        }
        .animation-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 24px;
            max-width: 1300px;
            margin: 0 auto;
        }
        .anim-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px;
            text-align: center;
            border: 1px solid rgba(11,27,51,0.08);
            transition: var(--transition);
        }
        .anim-card:hover {
            border-color: rgba(232,131,43,0.2);
            transform: translateY(-3px);
        }
        .anim-visual {
            width: 100%;
            height: 180px;
            margin-bottom: 20px;
            border-radius: 8px;
            position: relative;
            overflow: hidden;
            background: rgba(11,27,51,0.05);
        }
        /* 电磁感应加热动画 */
        .anim-coil {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 140px;
            height: 140px;
        }
        .anim-coil .ring {
            position: absolute;
            border: 2px solid rgba(232,131,43,0.4);
            border-radius: 50%;
            animation: coilPulse 2s ease-in-out infinite;
        }
        .anim-coil .ring:nth-child(1) { width: 40px; height: 40px; top: 50px; left: 50px; animation-delay: 0s; }
        .anim-coil .ring:nth-child(2) { width: 70px; height: 70px; top: 35px; left: 35px; animation-delay: 0.3s; }
        .anim-coil .ring:nth-child(3) { width: 100px; height: 100px; top: 20px; left: 20px; animation-delay: 0.6s; }
        .anim-coil .ring:nth-child(4) { width: 130px; height: 130px; top: 5px; left: 5px; animation-delay: 0.9s; }
        .anim-coil .core {
            position: absolute;
            width: 20px;
            height: 20px;
            background: var(--gold);
            border-radius: 50%;
            top: 60px;
            left: 60px;
            animation: coreGlow 1.5s ease-in-out infinite;
        }
        @keyframes coilPulse {
            0%, 100% { border-color: rgba(232,131,43,0.2); transform: scale(1); }
            50% { border-color: rgba(232,131,43,0.8); transform: scale(1.05); }
        }
        @keyframes coreGlow {
            0%, 100% { box-shadow: 0 0 10px rgba(232,131,43,0.5); }
            50% { box-shadow: 0 0 30px rgba(232,131,43,1), 0 0 60px rgba(232,131,43,0.5); }
        }
        /* 回转窑动画 */
        .anim-kiln {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 160px;
            height: 60px;
            border: 3px solid rgba(232,131,43,0.5);
            border-radius: 30px;
            animation: kilnRotate 4s linear infinite;
        }
        .anim-kiln::after {
            content: '';
            position: absolute;
            top: -8px;
            left: 20px;
            right: 20px;
            height: 4px;
            background: var(--gradient-gold);
            border-radius: 2px;
            animation: heatFlow 1.5s ease-in-out infinite;
        }
        @keyframes kilnRotate {
            0% { transform: translate(-50%, -50%) rotate(0deg); }
            100% { transform: translate(-50%, -50%) rotate(360deg); }
        }
        @keyframes heatFlow {
            0%, 100% { opacity: 0.4; }
            50% { opacity: 1; }
        }
        /* 蒸汽动画 */
        .anim-steam {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
        }
        .anim-steam .bubble {
            position: absolute;
            background: rgba(255,255,255,0.3);
            border-radius: 50%;
            animation: steamRise 2s ease-in infinite;
        }
        .anim-steam .bubble:nth-child(1) { width: 12px; height: 12px; left: -20px; animation-delay: 0s; }
        .anim-steam .bubble:nth-child(2) { width: 8px; height: 8px; left: 0px; animation-delay: 0.5s; }
        .anim-steam .bubble:nth-child(3) { width: 14px; height: 14px; left: 15px; animation-delay: 1s; }
        .anim-steam .bubble:nth-child(4) { width: 6px; height: 6px; left: -10px; animation-delay: 1.5s; }
        @keyframes steamRise {
            0% { bottom: 0; opacity: 0.8; transform: translateX(0) scale(1); }
            100% { bottom: 120px; opacity: 0; transform: translateX(15px) scale(2); }
        }
        /* 熔炼动画 */
        .anim-melt {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 80px;
            background: radial-gradient(circle, rgba(255,140,50,0.8) 0%, rgba(255,80,20,0.4) 50%, transparent 70%);
            border-radius: 50%;
            animation: meltGlow 2s ease-in-out infinite;
        }
        @keyframes meltGlow {
            0%, 100% { transform: translateX(-50%) scale(1); opacity: 0.7; }
            50% { transform: translateX(-50%) scale(1.2); opacity: 1; }
        }
        /* 温控动画 */
        .anim-temp {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--gold);
            animation: tempPulse 2s ease-in-out infinite;
        }
        @keyframes tempPulse {
            0%, 100% { text-shadow: 0 0 10px rgba(232,131,43,0.3); }
            50% { text-shadow: 0 0 30px rgba(232,131,43,0.8), 0 0 60px rgba(232,131,43,0.3); }
        }
        .anim-card h4 { font-size: 1rem; margin-bottom: 6px; }
        .anim-card p { font-size: 0.82rem; color: var(--text-secondary); }

        /* ===== 行业应用 ===== */
        .industries-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 20px;
        }
        .industry-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid rgba(11,27,51,0.08);
            transition: var(--transition);
            cursor: pointer;
        }
        .industry-card:hover {
            border-color: rgba(232,131,43,0.3);
            transform: translateY(-3px);
            box-shadow: var(--shadow-gold);
        }
        .industry-card .icon { font-size: 2.2rem; margin-bottom: 12px; }
        .industry-card .industry-img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            border-radius: 8px;
            margin-bottom: 12px;
        }
        .industry-card h4 { font-size: 0.95rem; }

        /* ===== 优势区 ===== */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .advantage-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px;
            border: 1px solid rgba(11,27,51,0.08);
            transition: var(--transition);
            text-align: center;
        }
        .advantage-card:hover { border-color: rgba(232,131,43,0.2); transform: translateY(-2px); }
        .advantage-card .icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            background: rgba(232,131,43,0.08);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
        }
        .advantage-card h4 { margin-bottom: 8px; }
        .advantage-card p { font-size: 0.85rem; color: var(--text-secondary); }

        /* ===== 联系区 ===== */
        .contact-section {
            background: var(--bg-secondary);
            padding: 80px 24px;
        }
        .contact-inner {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }
        .contact-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 40px;
            border: 1px solid rgba(232,131,43,0.15);
        }
        .contact-card .phone {
            font-size: 2rem;
            font-weight: 800;
            color: var(--gold);
            margin: 16px 0;
            letter-spacing: 2px;
        }
        .contact-card .address {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        .contact-btn {
            display: inline-block;
            margin-top: 20px;
            padding: 14px 36px;
            background: var(--gradient-gold);
            color: #fff;
            font-weight: 700;
            border-radius: 50px;
            text-decoration: none;
            font-size: 1rem;
            transition: var(--transition);
        }
        .contact-btn:hover { box-shadow: var(--shadow-gold); transform: translateY(-2px); }

        /* ===== 页脚 ===== */
        .footer {
            text-align: center;
            padding: 32px 24px;
            border-top: 1px solid rgba(11,27,51,0.08);
            color: var(--text-secondary);
            font-size: 0.82rem;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 768px) {
            .nav-links { display: none; }
            .nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                padding: 16px;
                border-bottom: 1px solid rgba(11,27,51,0.08);
            }
            .menu-toggle { display: block; }
            .nav-logo { font-size: 0.8rem; }
            .nav-logo .icon { width: 34px; height: 34px; font-size: 1.1rem; }
            .hero {
                min-height: auto;
                padding: 100px 16px 48px;
            }
            .hero h1 { font-size: 1.5rem; }
            .hero p { font-size: 0.9rem; }
            .hero-stats { gap: 8px; flex-wrap: wrap; justify-content: center; }
            .stat-item { padding: 10px 12px; min-width: 70px; }
            .stat-value { font-size: 1.1rem; }
            .stat-label { font-size: 0.7rem; }
            .section { padding: 48px 16px; }
            .section-header h2 { font-size: 1.4rem; }
            .section-header p { font-size: 0.85rem; }
            .products-grid, .detail-grid, .animation-grid, .advantages-grid {
                grid-template-columns: 1fr;
            }
            .product-card { padding: 20px; }
            .product-card h3 { font-size: 1rem; }
            .industries-grid { grid-template-columns: repeat(2, 1fr); }
            .industry-card { padding: 16px 10px; }
            .industry-card h4 { font-size: 0.8rem; }
            .detail-section { padding: 48px 16px; }
            .video-section { padding: 48px 16px; }
            .animation-section { padding: 48px 16px; }
            .contact-section { padding: 48px 16px; }
            .contact-card { padding: 24px 16px; }
            .contact-card .phone { font-size: 1.4rem; }
            .product-slider { padding: 0 12px 24px; }
            .slider-slide img { max-height: 280px; }
            .slider-slide .slide-caption { padding: 16px 20px; }
            .slider-slide .slide-caption h3 { font-size: 1rem; }
            .slider-slide .slide-caption p { font-size: 0.75rem; }
            .slider-btn { width: 32px; height: 32px; font-size: 0.9rem; }
            .footer { padding: 24px 16px; font-size: 0.75rem; }
        }
        @media (max-width: 480px) {
            .nav-inner { padding: 0 12px; height: 56px; }
            .nav-logo { font-size: 0.7rem; gap: 6px; }
            .nav-logo .icon { width: 28px; height: 28px; font-size: 0.9rem; border-radius: 6px; }
            .nav-links.open { top: 56px; }
            .hero { padding: 80px 12px 36px; }
            .hero h1 { font-size: 1.2rem; }
            .hero p { font-size: 0.8rem; }
            .hero-badge { font-size: 0.7rem; padding: 4px 12px; }
            .hero-stats { gap: 4px; }
            .stat-item { padding: 8px 8px; min-width: 60px; }
            .stat-value { font-size: 0.95rem; }
            .stat-label { font-size: 0.65rem; }
            .section { padding: 36px 12px; }
            .section-header h2 { font-size: 1.2rem; }
            .product-card { padding: 16px; }
            .industries-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
            .industry-card { padding: 12px 6px; }
            .industry-card .icon { font-size: 1.5rem; }
            .industry-card h4 { font-size: 0.7rem; }
            .slider-slide img { max-height: 200px; }
            .slider-slide .slide-caption { padding: 10px 14px; }
            .slider-slide .slide-caption h3 { font-size: 0.85rem; }
            .slider-slide .slide-caption p { font-size: 0.7rem; }
            .slider-btn { width: 28px; height: 28px; font-size: 0.8rem; }
            .contact-card .phone { font-size: 1.2rem; }
            .contact-btn { padding: 10px 24px; font-size: 0.85rem; }
        }
        /* ===== 首页产品轮播 ===== */
        .product-slider {
            position: relative;
            width: 100%;
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 24px 40px;
            overflow: hidden;
        }
        .slider-container {
            position: relative;
            width: 100%;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(9,26,49,0.15);
        }
        .slider-track {
            display: flex;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .slider-slide {
            min-width: 100%;
            position: relative;
        }
        .slider-slide img {
            width: 100%;
            max-height: 600px;
            object-fit: contain;
            display: block;
            background: #f0f4f8;
        }
        .slider-slide .slide-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 40px 48px;
            background: linear-gradient(transparent, rgba(0,0,0,0.7));
            color: #fff;
        }
        .slider-slide .slide-caption h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .slider-slide .slide-caption p {
            font-size: 0.95rem;
            opacity: 0.9;
        }
        .slider-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 48px;
            height: 48px;
            background: rgba(255,255,255,0.9);
            border: none;
            border-radius: 50%;
            cursor: pointer;
            font-size: 1.2rem;
            color: var(--text-primary);
            z-index: 10;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        }
        .slider-btn:hover {
            background: #fff;
            box-shadow: 0 6px 20px rgba(0,0,0,0.25);
        }
        .slider-btn.prev { left: 16px; }
        .slider-btn.next { right: 16px; }
        .slider-dots {
            position: absolute;
            bottom: 16px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
            z-index: 10;
        }
        .slider-dots .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(255,255,255,0.5);
            cursor: pointer;
            transition: var(--transition);
            border: none;
        }
        .slider-dots .dot.active {
            background: #fff;
            transform: scale(1.3);
        }
        @media (max-width: 768px) {
            .slider-slide img { max-height: 400px; }
            .slider-slide .slide-caption { padding: 20px 24px; }
            .slider-slide .slide-caption h3 { font-size: 1.1rem; }
            .slider-btn { width: 36px; height: 36px; font-size: 1rem; }
        }