/* ========== RESET & BASE ========== */
        *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei UI', 'Source Han Sans CN', 'WenQuanYi Micro Hei', sans-serif;
            color: #1a3a5a;
            background: #fff;
            line-height: 1.6;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; display: block; }
        ul { list-style: none; }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 40px; }

        /* ========== COLOR SYSTEM - 天蓝色 ========== */
        :root {
            --blue: #03A3FF;
            --blue-dark: #0289D9;
            --blue-mid: #0399E8;
            --blue-light: #59B8FF;
            --blue-lighter: #97CFFF;
            --blue-pale: #E6F6FF;
            --blue-bg: #F0F9FF;
            --white: #ffffff;
            --off-white: #f7fbfd;
            --gray-100: #eef5f9;
            --gray-200: #cfe2f0;
            --gray-300: #b0c4d8;
            --gray-400: #7a96b0;
            --gray-500: #5a7890;
            --gray-600: #3d5a75;
            --text-dark: #0d3a5e;
            --text-body: #2c5070;
            --shadow-sm: 0 2px 12px rgba(3,163,255,0.08);
            --shadow-md: 0 8px 32px rgba(3,163,255,0.12);
            --shadow-lg: 0 20px 50px rgba(3,163,255,0.15);
            --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        /* ========== TYPOGRAPHY ========== */
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        .section-title .sub {
            font-size: 14px;
            letter-spacing: 6px;
            text-transform: uppercase;
            color: var(--blue);
            font-weight: 500;
            margin-bottom: 12px;
            display: block;
        }
        .section-title h2 {
            font-size: 38px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 2px;
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--blue), var(--blue-light));
            margin: 16px auto 0;
            border-radius: 2px;
        }
        .section-title p {
            margin-top: 16px;
            color: var(--gray-500);
            font-size: 16px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        section { padding: 90px 0; }

        /* ========== HEADER / NAV ========== */
        /* 用 ID 选择器而非标签选择器，避免误伤页面内容里的 <header> 元素 */
        #header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 40px;
            transition: var(--transition);
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: 0 1px 0 rgba(3,163,255,0.08);
        }
        #header.scrolled {
            box-shadow: 0 2px 24px rgba(3,163,255,0.12);
        }
        #header .header-inner {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .logo-icon {
            width: 100px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            object-fit: contain;
        }
        .logo-text {
            display: flex;
            flex-direction: column;
        }
        .logo-text .brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 2px;
        }
        .logo-text .brand span { color: var(--blue); }
        .logo-text .slogan {
            font-size: 11px;
            color: var(--gray-400);
            letter-spacing: 3px;
        }
        nav ul {
            display: flex;
            gap: 36px;
            align-items: center;
        }
        nav ul li a {
            font-size: 15px;
            color: var(--gray-600);
            font-weight: 400;
            letter-spacing: 1px;
            transition: var(--transition);
            position: relative;
            padding: 4px 0;
        }
        nav ul li a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--blue);
            transition: var(--transition);
        }
        nav ul li a:hover { color: var(--blue); }
        nav ul li a:hover::after { width: 100%; }
        /* 当前页高亮 */
        nav ul li a.active { color: var(--blue); font-weight: 600; }
        nav ul li a.active::after { width: 100%; }
        nav ul li a.nav-cta.active { background: linear-gradient(180deg, var(--blue), var(--blue-dark)); color: #fff; }
        .nav-cta {
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            color: #fff !important;
            padding: 10px 28px;
            border-radius: 50px;
            font-weight: 600 !important;
            font-size: 14px !important;
        }
        .nav-cta::after { display: none !important; }
        .nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 20px rgba(3,163,255,0.35); }

        /* Mobile menu toggle */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 4px;
        }
        .menu-toggle span {
            display: block;
            width: 28px;
            height: 2px;
            background: var(--blue);
            transition: var(--transition);
        }
        .menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .menu-toggle.active span:nth-child(2) { opacity: 0; }
        .menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        /* 导航搜索按钮 */
        .nav-search-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border: 1px solid var(--gray-200, #cfe2f0);
            border-radius: 50%;
            background: transparent;
            color: var(--blue);
            cursor: pointer;
            transition: var(--transition);
            margin-left: 6px;
        }
        .nav-search-btn:hover {
            background: var(--blue);
            color: #fff;
            border-color: var(--blue);
            transform: translateY(-1px);
        }

        /* 导航搜索浮框 */
        .nav-search-overlay {
            position: fixed;
            inset: 0;
            background: rgba(13, 58, 94, 0.55);
            backdrop-filter: blur(4px);
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
            z-index: 2000;
            display: flex;
            align-items: flex-start;
            justify-content: center;
            padding-top: 12vh;
        }
        .nav-search-overlay.open {
            opacity: 1;
            visibility: visible;
        }
        .nav-search-popup {
            position: relative;
            width: min(680px, 92vw);
            background: #fff;
            border-radius: 16px;
            padding: 28px 28px 24px;
            box-shadow: 0 24px 60px rgba(0,0,0,0.25);
            transform: translateY(-16px);
            transition: transform 0.3s ease;
        }
        .nav-search-overlay.open .nav-search-popup { transform: translateY(0); }
        .nav-search-close {
            position: absolute;
            top: 14px;
            right: 16px;
            width: 32px;
            height: 32px;
            border: none;
            background: #f2f6fa;
            color: var(--gray-500, #5a7890);
            border-radius: 50%;
            font-size: 22px;
            line-height: 1;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-search-close:hover { background: var(--blue); color: #fff; }
        .nav-search-form {
            display: flex;
            align-items: center;
            gap: 10px;
            border: 2px solid var(--blue);
            border-radius: 50px;
            padding: 6px 6px 6px 18px;
        }
        .nav-search-form .ns-icon { color: var(--blue); flex-shrink: 0; }
        .nav-search-form input {
            flex: 1;
            border: none;
            outline: none;
            font-size: 16px;
            color: var(--text-dark, #0d3a5e);
            background: transparent;
            font-family: inherit;
        }
        .nav-search-form .ns-submit {
            border: none;
            background: linear-gradient(135deg, var(--blue), var(--blue-dark));
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 10px 26px;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-search-form .ns-submit:hover { opacity: 0.9; transform: translateY(-1px); }
        .nav-search-hot {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin-top: 16px;
            font-size: 13px;
            color: var(--gray-500, #5a7890);
        }
        .nav-search-hot a {
            color: var(--blue);
            background: #eaf5ff;
            border-radius: 50px;
            padding: 4px 14px;
            transition: var(--transition);
        }
        .nav-search-hot a:hover { background: var(--blue); color: #fff; }
        .nav-search-result {
            margin-top: 18px;
            max-height: 46vh;
            overflow-y: auto;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
        }
        .nav-search-result:empty { display: none; }
        .ns-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            border: 1px solid var(--gray-200, #e8edf2);
            border-radius: 10px;
            color: var(--text-dark, #0d3a5e);
            text-decoration: none;
            transition: var(--transition);
        }
        .ns-item:hover {
            border-color: var(--blue);
            background: #f4faff;
            transform: translateY(-2px);
        }
        .ns-item .ns-emoji { font-size: 20px; }
        .ns-item .ns-name { font-size: 14px; font-weight: 500; }
        .ns-item .ns-cat { margin-left: auto; font-size: 11px; color: var(--gray-500, #5a7890); }
        .ns-empty { grid-column: 1 / -1; text-align: center; color: var(--gray-500, #5a7890); padding: 24px 0; font-size: 14px; }

        /* ========== HERO - 简洁横幅 非全屏幻灯 ========== */
        .hero {
            position: relative;
            background: url('../images/Wide_panoramic_photograph_of_e_2026-08-24T01-55-06.png') center center / cover no-repeat;
            padding: 140px 0 80px;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(3,163,255,0.82) 0%, rgba(3,163,255,0.70) 40%, rgba(3,163,255,0.55) 70%, rgba(89,184,255,0.4) 100%);
            z-index: 1;
        }
        /* 背景图轮播层：仅在最底层切换背景，其余元素完全不变 */
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            overflow: hidden;
        }
        .hero-bg-layer {
            position: absolute;
            inset: 0;
            background-position: center center;
            background-size: cover;
            background-repeat: no-repeat;
            opacity: 0;
            transition: opacity 1.5s ease;
        }
        .hero-bg-layer.active { opacity: 1; }
        .hero-wave {
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            line-height: 0;
            z-index: 3;
        }
        .hero-wave svg {
            width: 100%;
            height: 60px;
            display: block;
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-content {
            max-width: 780px;
            transition: opacity 0.5s ease, transform 0.5s ease;
        }
        /* 文字随背景图一同切换：淡出→换字→淡入 */
        .hero-content.swapping {
            opacity: 0;
            transform: translateY(12px);
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.15);
            border: 1px solid rgba(255,255,255,0.25);
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 13px;
            color: #fff;
            letter-spacing: 2px;
            margin-bottom: 28px;
        }
        .hero-badge .dot {
            width: 6px;
            height: 6px;
            background: #fff;
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        .hero-content h1 {
            font-size: 48px;
            font-weight: 900;
            color: #fff;
            line-height: 1.25;
            letter-spacing: 2px;
            margin-bottom: 8px;
        }
        .hero-content h1 .highlight {
            color: #fff;
            position: relative;
        }
        .hero-content h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            right: 0;
            height: 8px;
            background: rgba(255,255,255,0.2);
            border-radius: 4px;
            z-index: -1;
        }
        .hero-content .subtitle {
            font-size: 20px;
            color: rgba(255,255,255,0.7);
            font-weight: 300;
            letter-spacing: 6px;
            margin-bottom: 20px;
        }
        .hero-content .desc {
            font-size: 16px;
            color: rgba(255,255,255,0.65);
            line-height: 1.8;
            max-width: 580px;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 1px;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background: #fff;
            color: var(--blue-dark);
            box-shadow: 0 4px 24px rgba(0,0,0,0.15);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(0,0,0,0.2);
        }
        .btn-outline {
            border: 1px solid rgba(255,255,255,0.35);
            color: #fff;
            background: transparent;
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255,255,255,0.1);
            transform: translateY(-2px);
        }
        .btn-blue {
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            color: #fff;
            box-shadow: 0 4px 24px rgba(3,163,255,0.3);
        }
        .btn-blue:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(3,163,255,0.4);
        }

        /* Hero Stats - 横向排列 不占满屏 */
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.15);
            flex-wrap: wrap;
        }
        .hero-stat h3 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
        }
        .hero-stat p {
            font-size: 13px;
            color: rgba(255,255,255,0.5);
            letter-spacing: 1px;
            margin-top: 4px;
        }

        /* ========== VISION STRIP 品牌愿景数据条 ========== */
        .vision-strip {
            background: #fff;
            padding: 34px 0 20px;
        }
        .vision-head {
            font-size: 14px;
            color: var(--gray-500);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .vision-head strong {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-dark);
            margin-right: 10px;
        }
        .vision-card {
            display: flex;
            align-items: stretch;
            border: 1px solid var(--gray-100);
            background: #fff;
            overflow: hidden;
        }
        .vision-stat {
            flex: 1;
            text-align: center;
            padding: 34px 16px;
            border-right: 1px solid var(--gray-100);
        }
        .vision-stat .v-num {
            font-size: 46px;
            font-weight: 800;
            color: var(--blue);
            line-height: 1;
        }
        .vision-stat .v-num i {
            font-style: normal;
            font-size: 26px;
            margin-left: 2px;
        }
        .vision-stat p {
            margin-top: 14px;
            font-size: 14px;
            color: var(--gray-500);
            letter-spacing: 3px;
        }
        .vision-qr {
            width: 230px;
            flex-shrink: 0;
            background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            padding: 20px;
        }
        .vision-qr img {
            width: 96px;
            height: 96px;
            background: #fff;
            padding: 4px;
            border-radius: 4px;
        }
        .vision-qr .qr-text {
            display: flex;
            flex-direction: column;
            text-align: left;
            color: #fff;
        }
        .vision-qr .qr-text strong {
            font-size: 15px;
            letter-spacing: 1px;
        }
        .vision-qr .qr-text span {
            font-size: 12px;
            opacity: 0.85;
            margin-top: 6px;
            letter-spacing: 1px;
        }

        /* ========== ABOUT ========== */
        .about {
            background: #fff;
            position: relative;
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 80px;
            align-items: center;
        }
        .about-visual {
            position: relative;
        }
        .about-visual .about-video {
            width: 100%;
            max-width: 100%;
            aspect-ratio: 16 / 9;
            display: block;
            object-fit: cover;
            border-radius: 16px;
            border: 1px solid var(--gray-100);
            box-shadow: var(--shadow-lg);
            background: #000;
        }
        .about-image-placeholder {
            width: 100%;
            aspect-ratio: 4/3;
            background: linear-gradient(135deg, var(--blue-pale), var(--blue-bg));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            position: relative;
            border: 1px solid var(--gray-100);
        }
        .about-image-placeholder .inner-glow {
            position: absolute;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(3,163,255,0.1), transparent);
            top: -40px;
            right: -40px;
        }
        .about-image-placeholder .symbol {
            font-size: 72px;
            color: var(--blue);
            opacity: 0.5;
        }
        .about-image-placeholder .accent-line {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--blue), var(--blue-light), transparent);
        }
        .about-exp {
            position: absolute;
            bottom: -20px;
            right: -20px;
            background: #fff;
            padding: 24px 32px;
            border-radius: 12px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--gray-100);
        }
        .about-exp h4 {
            font-size: 32px;
            color: var(--blue);
            font-weight: 700;
        }
        .about-exp p {
            font-size: 13px;
            color: var(--gray-500);
            letter-spacing: 1px;
        }
        .about-text .tag {
            font-size: 13px;
            color: var(--blue);
            letter-spacing: 4px;
            font-weight: 500;
            margin-bottom: 20px;
            display: block;
        }
        .about-text h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.3;
            margin-bottom: 24px;
        }
        .about-text p {
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 32px;
        }
        .about-feature {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-dark);
            font-weight: 500;
        }
        .about-feature .check {
            width: 22px;
            height: 22px;
            background: linear-gradient(135deg, var(--blue), var(--blue-dark));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 12px;
            flex-shrink: 0;
        }
        .about-more {
            display: flex;
            justify-content: flex-end;
            margin-top: 28px;
        }
        .about-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 26px;
            border: 1.5px solid var(--blue);
            border-radius: 50px;
            color: var(--blue-dark);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 1px;
            transition: var(--transition);
        }
        .about-more-btn .arrow {
            transition: transform 0.3s ease;
        }
        .about-more-btn:hover {
            background: linear-gradient(135deg, var(--blue), var(--blue-dark));
            color: #fff;
            box-shadow: 0 6px 20px rgba(3,163,255,0.3);
            transform: translateY(-2px);
        }
        .about-more-btn:hover .arrow {
            transform: translateX(4px);
        }

        /* ========== PRODUCTS ========== */
        .products {
            background: var(--off-white);
            padding: 70px 0 90px;
        }
        .products-header {
            background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
            border-radius: 0;
            padding: 40px 50px 0;
            text-align: center;
            box-shadow: 0 10px 40px rgba(3,163,255,0.12);
        }
        .products-title { margin-bottom: 28px; }
        .products-title h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 2px;
            margin-bottom: 8px;
        }
        .products-title p {
            font-size: 14px;
            color: rgba(255,255,255,0.85);
            letter-spacing: 1px;
        }

        /* 搜索框 */
        .product-search { margin-bottom: 28px; }
        .search-box {
            display: flex;
            align-items: center;
            max-width: 560px;
            margin: 0 auto;
            background: #fff;
            border-radius: 0;
            padding: 4px;
            border: 1px solid rgba(255,255,255,0.35);
            box-shadow: 0 4px 16px rgba(0,0,0,0.12);
        }
        .search-box input {
            flex: 1;
            min-width: 0;
            border: none;
            outline: none;
            background: transparent;
            padding: 11px 18px;
            font-size: 14px;
            color: #333;
            font-family: inherit;
        }
        .search-box input::placeholder { color: #999; }
        .search-box button {
            border: none;
            cursor: pointer;
            padding: 11px 32px;
            border-radius: 0;
            background: var(--blue-dark);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 2px;
            font-family: inherit;
            transition: var(--transition);
        }
        .search-box button:hover { background: #0275bd; }
        .search-clear {
            border: none;
            background: transparent;
            color: #999;
            font-size: 22px;
            line-height: 1;
            cursor: pointer;
            padding: 0 12px;
            align-self: center;
            transition: var(--transition);
        }
        .search-clear:hover { color: var(--blue); }
        .hot-keywords {
            margin-top: 14px;
            font-size: 13px;
            color: rgba(255,255,255,0.85);
            letter-spacing: 1px;
        }
        .hot-keywords span { margin-right: 6px; }
        .hot-keywords a {
            color: #fff;
            margin: 0 8px;
            cursor: pointer;
            transition: var(--transition);
        }
        .hot-keywords a:hover {
            text-decoration: underline;
            opacity: 0.9;
        }

        /* 分类 tab */
        .product-tabs {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255,255,255,0.25);
        }
        .product-tab {
            position: relative;
            padding: 16px 30px;
            border: none;
            background: transparent;
            font-size: 15px;
            color: rgba(255,255,255,0.9);
            cursor: pointer;
            transition: var(--transition);
            font-family: inherit;
            letter-spacing: 1px;
            font-weight: 500;
        }
        .product-tab:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 18px;
            background: rgba(255,255,255,0.45);
        }
        .product-tab:hover { color: #fff; }
        .product-tab.active {
            color: #fff;
            font-weight: 700;
            background: rgba(255,255,255,0.18);
        }

        /* 产品内容区 */
        .products-body {
            background: #fff;
            padding: 45px 50px 55px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.06);
        }
        .product-subcategory-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 30px;
            text-align: left;
        }
        .product-subcategory-col {
            min-width: 0;
        }
        .product-subcategory-col h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--gray-100);
        }
        .product-subcategory-col ul { display: flex; flex-direction: column; gap: 8px; }
        .product-subcategory-col li a {
            display: block;
            font-size: 13px;
            color: var(--gray-500);
            line-height: 1.55;
            transition: var(--transition);
            cursor: pointer;
        }
        .product-subcategory-col li a:hover {
            color: var(--blue);
            padding-left: 4px;
        }
        .product-subcategory-col li.hidden { display: none; }
        .search-empty {
            display: none;
            text-align: center;
            padding: 40px 0 10px;
            color: var(--gray-500);
            font-size: 14px;
            letter-spacing: 1px;
        }
        .search-empty button {
            border: none;
            background: none;
            color: var(--blue);
            font-size: 14px;
            cursor: pointer;
            font-family: inherit;
            margin-left: 6px;
        }
        .search-empty button:hover { text-decoration: underline; }

        /* ===== 相关产品（随 tab 切换） ===== */
        .product-rel {
            margin-top: 48px;
            padding-top: 36px;
            border-top: 1px solid var(--gray-200, #e8edf2);
        }
        .product-rel-head {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            margin-bottom: 24px;
        }
        .product-rel-head h3 {
            font-size: 22px;
            color: var(--text-dark, #1a2b3c);
            letter-spacing: 2px;
        }
        .product-rel-head h3::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 18px;
            background: linear-gradient(135deg, var(--blue), var(--blue-dark));
            border-radius: 2px;
            margin-right: 10px;
            vertical-align: -2px;
        }
        .product-rel-more {
            font-size: 14px;
            color: var(--gray-500, #7a8a99);
            transition: var(--transition);
        }
        .product-rel-more:hover { color: var(--blue); }
        .product-rel-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .product-rel-card {
            display: flex;
            flex-direction: column;
            background: #fff;
            border: 1px solid var(--gray-200, #e8edf2);
            border-radius: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .product-rel-card:hover {
            transform: translateY(-4px);
            border-color: var(--blue);
            box-shadow: 0 10px 28px rgba(3,163,255,0.12);
        }
        .product-rel-card .rel-icon {
            position: relative;
            width: 100%;
            padding-top: 100%;
            background: #fff;
            border-bottom: 1px solid #f0f4f8;
            overflow: hidden;
        }
        .product-rel-card .rel-thumb {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: contain;
            display: block;
        }
        .product-rel-card h4 {
            font-size: 15px;
            color: var(--text-dark, #0d3a5e);
            line-height: 1.5;
            padding: 16px 18px 6px;
            text-align: center;
        }
        .product-rel-card .rel-sub {
            font-size: 12px;
            color: var(--gray-500, #5a7890);
            padding: 0 18px 14px;
            text-align: center;
        }
        .product-rel-card .rel-btn {
            margin: 0 18px 18px;
            text-align: center;
            font-size: 13px;
            color: var(--blue);
            border: 1px solid var(--blue);
            border-radius: 50px;
            padding: 8px 0;
            transition: var(--transition);
        }
        .product-rel-card:hover .rel-btn {
            background: var(--blue);
            color: #fff;
        }
        @media (max-width: 992px) {
            .product-rel-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 600px) {
            .product-rel-grid { grid-template-columns: 1fr; }
        }

        /* ========== FEATURED PRODUCTS ========== */
        .featured-products {
            background: #fff;
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .featured-card {
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--gray-100);
        }
        .featured-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .featured-img {
            width: 100%;
            aspect-ratio: 16/9;
            background: linear-gradient(135deg, var(--blue-pale), var(--blue-lighter));
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        .featured-img .icon-big {
            font-size: 48px;
            opacity: 0.5;
        }
        .featured-img .badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--blue);
            color: #fff;
            font-size: 11px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
        }
        .featured-body {
            padding: 24px;
        }
        .featured-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .featured-body p {
            font-size: 13px;
            color: var(--gray-400);
            line-height: 1.7;
        }
        .featured-body .btn-text {
            display: inline-block;
            margin-top: 16px;
            font-size: 13px;
            color: var(--blue);
            font-weight: 600;
            transition: var(--transition);
        }
        .featured-body .btn-text:hover { color: var(--blue-dark); }

        /* ========== SERVICE ========== */
        .service {
            background: linear-gradient(135deg, var(--blue-dark), var(--blue-mid));
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .service::before {
            content: '';
            position: absolute;
            inset: 0;
            background:
                radial-gradient(ellipse 60% 50% at 0% 50%, rgba(89,184,255,0.1), transparent),
                radial-gradient(ellipse 60% 50% at 100% 50%, rgba(151,207,255,0.06), transparent);
        }
        .service .section-title h2 { color: #fff; }
        .service .section-title .sub { color: var(--blue-lighter); }
        .service .section-title h2::after { background: linear-gradient(90deg, #fff, var(--blue-light)); }
        .service .section-title p { color: rgba(255,255,255,0.55); }

        .service-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }
        .service-card {
            text-align: center;
            padding: 36px 24px;
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 16px;
            transition: var(--transition);
            background: rgba(255,255,255,0.04);
        }
        .service-card:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(89,184,255,0.3);
            transform: translateY(-4px);
        }
        .service-icon {
            width: 60px;
            height: 60px;
            background: rgba(89,184,255,0.12);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 26px;
            transition: var(--transition);
        }
        .service-card:hover .service-icon {
            background: rgba(89,184,255,0.2);
            transform: scale(1.1);
        }
        .service-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .service-card p {
            font-size: 13px;
            color: rgba(255,255,255,0.55);
            line-height: 1.7;
        }

        /* ========== CASES ========== */
        .cases {
            background: #fff;
        }
        .cases .section-title {
            margin-bottom: 22px;
        }
        .cases .section-title .sub {
            letter-spacing: 2px;
            font-size: 13px;
        }
        .cases .section-title h2 {
            font-size: 34px;
            letter-spacing: 1px;
        }
        .cases .section-title h2::after {
            display: none;
        }
        .cases .section-title p {
            color: var(--gray-400);
            font-size: 14px;
            margin-top: 10px;
        }
        .cases-tabs {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0;
            margin-bottom: 45px;
            border-bottom: 1px solid var(--gray-100);
        }
        .cases-tab {
            padding: 12px 26px;
            font-size: 15px;
            color: var(--gray-500);
            cursor: pointer;
            transition: var(--transition);
            border-bottom: 2px solid transparent;
            margin-bottom: -1px;
            white-space: nowrap;
            user-select: none;
        }
        .cases-tab:hover {
            color: var(--blue);
        }
        .cases-tab.active {
            color: #fff;
            background: var(--blue);
            border-bottom-color: var(--blue);
            border-radius: 4px 4px 0 0;
        }
        .cases-panels {
            margin-top: 8px;
        }
        .cases-panel {
            display: none;
        }
        .cases-panel.active {
            display: block;
            animation: casesFadeIn .45s ease;
        }
        @keyframes casesFadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .cases-logo-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .ph-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 8px;
        }
        .ph-card {
            position: relative;
            aspect-ratio: 4/3;
            border-radius: 4px;
            background: linear-gradient(135deg, var(--blue-pale), var(--blue-lighter));
            border: 1px solid var(--gray-100);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 10px;
            color: var(--blue);
            overflow: hidden;
            transition: var(--transition);
        }
        /* 最左侧上下合并的大图：跨两行 */
        .ph-card.ph-tall {
            grid-row: span 2;
            grid-column: 1;
            aspect-ratio: auto;
        }
        .ph-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .ph-card .ph-ico {
            display: none;
        }
        .ph-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .ph-card .ph-label {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            padding: 7px 10px;
            font-size: 14px;
            color: #fff;
            font-weight: 500;
            text-align: center;
            background: rgba(0, 0, 0, 0.45);
            letter-spacing: 1px;
        }
        .logo-card {
            background: #fff;
            border: 1px solid var(--gray-100);
            border-radius: 10px;
            overflow: hidden;
            transition: var(--transition);
        }
        .logo-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--blue-lighter);
        }
        .logo-area {
            aspect-ratio: 16/11;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 22px 18px 10px;
            position: relative;
        }
        .logo-area svg {
            width: 100%;
            height: 100%;
            max-width: 150px;
            max-height: 90px;
        }
        .logo-area img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        /* 含照片时去除内边距，让图片充满卡片（不影响仍用 SVG 的页面） */
        .logo-area:has(img) {
            padding: 0;
        }
        .logo-label {
            background: #f4f6f8;
            color: var(--gray-500);
            text-align: center;
            padding: 10px 0;
            font-size: 13px;
            border-top: 1px solid var(--gray-100);
        }

        /* ========== CASE STUDIES 客户案例 ========== */
        .case-studies {
            background: var(--off-white);
        }
        .case-studies .section-title .sub {
            color: var(--blue);
            letter-spacing: 4px;
            font-size: 13px;
        }
        .case-studies-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .case-study-card {
            background: #fff;
            border-radius: 14px;
            overflow: hidden;
            border: 1px solid var(--gray-100);
            transition: var(--transition);
            cursor: pointer;
        }
        .case-study-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .case-study-img {
            aspect-ratio: 16/10;
            background: linear-gradient(135deg, #e8f5ff 0%, #d6eeff 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 44px;
            position: relative;
            overflow: hidden;
        }
        .case-study-img::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(255,255,255,0.35) 0%, rgba(3,163,255,0.08) 100%);
        }
        .case-study-img span.icon {
            position: relative;
            z-index: 1;
            filter: drop-shadow(0 6px 12px rgba(3,163,255,0.18));
        }
        .case-study-img .city-tag {
            position: absolute;
            bottom: 14px;
            left: 14px;
            background: rgba(3,163,255,0.85);
            color: #fff;
            padding: 5px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 500;
            backdrop-filter: blur(4px);
            z-index: 2;
        }
        .case-study-body {
            padding: 22px 24px 26px;
        }
        .case-study-body h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .case-study-body p {
            font-size: 13px;
            color: var(--gray-500);
            line-height: 1.7;
        }

        /* ========== NEWS ========== */
        .news {
            background: #fff;
        }
        .news .section-title .sub {
            letter-spacing: 3px;
        }
        .news .section-title .sub::before,
        .news .section-title .sub::after {
            content: '—';
            margin: 0 10px;
            opacity: 0.45;
        }
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: stretch;
        }
        .news-featured {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            min-height: 420px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 28px;
            color: #fff;
            background: url('../images/Wide_panoramic_photograph_of_e_2026-08-24T01-55-06.png') center center / cover no-repeat;
            isolation: isolate;
            transition: var(--transition);
            cursor: pointer;
        }
        .news-featured:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .news-featured::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0,40,80,0.1) 0%, rgba(0,40,80,0.55) 60%, rgba(0,40,80,0.82) 100%);
            z-index: -1;
        }
        .news-featured .nf-date {
            position: absolute;
            top: 24px;
            left: 24px;
            background: rgba(255,255,255,0.2);
            backdrop-filter: blur(4px);
            color: #fff;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            line-height: 1;
        }
        .news-featured h3 {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 12px;
        }
        .news-featured p {
            font-size: 14px;
            line-height: 1.7;
            opacity: 0.92;
            max-width: 92%;
        }
        .news-side-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .news-side-card {
            background: #fff;
            border: 1px solid var(--gray-100);
            border-radius: 16px;
            padding: 22px;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            cursor: pointer;
        }
        .news-side-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--blue-pale);
        }
        .news-side-card .ns-date {
            font-size: 13px;
            color: var(--blue);
            font-weight: 600;
            margin-bottom: 10px;
        }
        .news-side-card h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-side-card p {
            font-size: 13px;
            color: var(--gray-400);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-more {
            text-align: center;
            margin-top: 40px;
        }

        /* ========== CONTACT / FOOTER ========== */
        .contact {
            background: var(--blue);
            color: #fff;
            padding: 55px 0 0;
        }
        .footer-main {
            display: flex;
            gap: 50px;
            justify-content: space-between;
            align-items: flex-start;
        }
        .footer-hotline {
            flex-shrink: 0;
            padding-right: 45px;
            border-right: 1px solid rgba(255,255,255,0.18);
            min-width: 220px;
        }
        .footer-hotline .phone {
            font-size: 38px;
            font-weight: 700;
            letter-spacing: 1px;
            line-height: 1;
        }
        .footer-hotline p {
            font-size: 13px;
            color: rgba(255,255,255,0.75);
            margin-top: 8px;
        }
        .footer-links {
            flex: 1;
            display: flex;
            justify-content: space-between;
            gap: 20px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            color: #fff;
        }
        .footer-col ul li {
            margin-bottom: 9px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: rgba(255,255,255,0.75);
            transition: color 0.25s;
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-qr {
            flex-shrink: 0;
            text-align: center;
            padding-left: 30px;
        }
        .footer-qr img {
            width: 96px;
            height: 96px;
            background: #fff;
            padding: 4px;
            border-radius: 6px;
            margin: 0 auto;
        }
        .footer-qr p {
            font-size: 12px;
            margin-top: 8px;
            color: rgba(255,255,255,0.85);
        }
        .footer-divider {
            height: 1px;
            background: rgba(255,255,255,0.15);
            margin: 45px 0 0;
        }
        .footer-bottom {
            padding: 20px 0 28px;
            text-align: center;
            font-size: 12px;
            color: rgba(255,255,255,0.65);
            line-height: 1.9;
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.8);
            transition: color 0.25s;
        }
        .footer-bottom a:hover { color: #fff; }
        .footer-bottom .footer-nav {
            margin-bottom: 6px;
        }
        .footer-bottom .footer-nav a {
            margin: 0 10px;
            font-size: 13px;
        }

        /* ========== SCROLL ANIMATIONS ========== */
        .reveal {
            opacity: 0;
            transform: translateY(40px);
            transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .reveal-delay-1 { transition-delay: 0.1s; }
        .reveal-delay-2 { transition-delay: 0.2s; }
        .reveal-delay-3 { transition-delay: 0.3s; }
        .reveal-delay-4 { transition-delay: 0.4s; }
        .reveal-delay-5 { transition-delay: 0.5s; }

        /* ========== NAV ACTIVE (当前页高亮) ========== */
        .nav-menu a.active { color: #fff; font-weight: 700; }
        #header.scrolled .nav-menu a.active { color: var(--blue); }

        /* ========== ABOUT PAGE 关于我们页面 ========== */
        .about-banner {
            position: relative;
            padding: 150px 0 110px;
            background: var(--blue-dark);
            overflow: hidden;
        }
        .about-banner-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.5;
        }
        .about-banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(2,137,217,0.94) 0%, rgba(3,163,255,0.78) 45%, rgba(3,163,255,0.40) 100%);
        }
        .about-banner-content {
            position: relative;
            text-align: center;
            color: #fff;
        }
        .about-banner-sub {
            display: block;
            font-size: 14px;
            letter-spacing: 6px;
            opacity: 0.85;
            margin-bottom: 14px;
        }
        .about-banner-content h1 {
            font-size: 52px;
            font-weight: 700;
            letter-spacing: 4px;
            margin-bottom: 18px;
        }
        .about-banner-content p {
            font-size: 17px;
            opacity: 0.92;
            letter-spacing: 1px;
        }

        /* 公司简介 */
        .about-intro { padding: 80px 0; background: #fff; }
        .about-intro-grid {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 64px;
            align-items: center;
        }
        .about-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            color: var(--blue);
            background: var(--blue-pale);
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 18px;
        }
        .about-intro-text h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.35;
            margin-bottom: 22px;
        }
        .about-intro-text p {
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .about-intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
            margin-top: 28px;
        }
        .about-intro-feature {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-dark);
            font-weight: 500;
            font-size: 14px;
        }
        .about-intro-feature .check {
            width: 22px;
            height: 22px;
            flex: none;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--blue), var(--blue-dark));
            color: #fff;
            font-size: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .about-video-card {
            position: relative;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .about-video-card img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            display: block;
        }
        /* 视频版（沿用首页视频）：填满卡片，圆角/阴影由外层 .about-video-card 提供 */
        .about-video-card .about-video {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            display: block;
            border: none;
            border-radius: 0;
            box-shadow: none;
            background: #000;
        }
        .about-video-btn {
            position: absolute;
            inset: 0;
            margin: auto;
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: rgba(255,255,255,0.92);
            color: var(--blue);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(0,0,0,0.2);
        }
        .about-video-btn svg { width: 28px; height: 28px; margin-left: 4px; }
        .about-video-btn:hover { transform: scale(1.08); background: #fff; }

        /* 数据统计 */
        .about-stats { padding: 64px 0; background: var(--blue-bg); }
        .about-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .about-stat-item { padding: 20px; }
        .about-stat-num {
            font-size: 46px;
            font-weight: 800;
            color: var(--blue);
            line-height: 1;
        }
        .about-stat-num span { font-size: 22px; font-weight: 700; }
        .about-stat-item p {
            margin-top: 12px;
            color: var(--gray-500);
            font-size: 14px;
            letter-spacing: 1px;
        }

        /* 服务流程 */
        .about-process {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
            color: #fff;
        }
        .about-process-head { text-align: center; margin-bottom: 50px; }
        .about-process-head h2 {
            font-size: 30px;
            font-weight: 700;
            letter-spacing: 1px;
        }
        .about-process-head p {
            margin-top: 14px;
            opacity: 0.85;
            font-size: 15px;
        }
        .about-process-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        .about-process-step { text-align: center; }
        .about-step-dot {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            border-radius: 50%;
            background: rgba(255,255,255,0.15);
            border: 2px solid rgba(255,255,255,0.5);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            transition: var(--transition);
        }
        .about-process-step:hover .about-step-dot {
            background: #fff;
            color: var(--blue);
            transform: translateY(-6px);
        }
        .about-process-step h4 { font-size: 18px; margin-bottom: 10px; }
        .about-process-step p { font-size: 13px; opacity: 0.85; line-height: 1.7; }

        /* 发展历程 */
        .about-history { padding: 80px 0; background: #fff; }
        .about-timeline { position: relative; max-width: 860px; margin: 0 auto; }
        .about-timeline::before {
            content: '';
            position: absolute;
            left: 110px;
            top: 12px;
            bottom: 12px;
            width: 2px;
            background: var(--gray-200);
        }
        .about-timeline-item {
            position: relative;
            display: flex;
            align-items: flex-start;
            gap: 30px;
            padding-bottom: 34px;
        }
        .about-timeline-item::after {
            content: '';
            position: absolute;
            left: 103px;
            top: 6px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: #fff;
            border: 3px solid var(--blue);
            box-shadow: 0 0 0 5px var(--blue-pale);
            z-index: 1;
        }
        .about-timeline-year {
            flex: none;
            width: 86px;
            text-align: right;
            font-size: 28px;
            font-weight: 800;
            color: var(--blue);
            padding-top: 2px;
        }
        .about-timeline-body {
            flex: 1;
            background: var(--off-white);
            border: 1px solid var(--gray-100);
            border-radius: 14px;
            padding: 22px 26px;
        }
        .about-timeline-body h4 {
            font-size: 18px;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .about-timeline-body p {
            font-size: 14px;
            color: var(--gray-500);
            line-height: 1.8;
        }

        /* 合作客户 */
        .about-partners { padding: 80px 0; background: var(--off-white); }

        /* CTA */
        .about-cta { padding: 70px 0; background: #fff; }
        .about-cta-inner { text-align: center; max-width: 720px; margin: 0 auto; }
        .about-cta-inner h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 14px;
        }
        .about-cta-inner p {
            color: var(--gray-500);
            font-size: 16px;
            margin-bottom: 28px;
        }
        .about-cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
        }
        /* 白底区块内的按钮配色（.btn-primary/.btn-outline 默认是给深色背景用的） */
        .about-cta .btn-primary {
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            color: #fff;
            box-shadow: 0 8px 22px rgba(3,163,255,0.30);
        }
        .about-cta .btn-primary:hover { box-shadow: 0 12px 30px rgba(3,163,255,0.42); }
        .about-cta .btn-outline {
            background: #fff;
            border: 1px solid var(--blue);
            color: var(--blue);
        }
        .about-cta .btn-outline:hover {
            background: var(--blue-pale);
            border-color: var(--blue);
        }

        /* ========== PRODUCTS PAGE 产品中心独立页 ========== */
        .products-page { background: var(--off-white); }
        .products-layout { padding: 110px 0 0; }
        .products-layout .container { max-width: 1280px; }
        .products-layout-grid {
            display: grid;
            grid-template-columns: 260px 1fr;
            gap: 16px;
            align-items: start;
        }

        /* 左侧边栏 */
        .products-sidebar {
            position: sticky;
            top: 100px;
            background: #fff;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .sidebar-title {
            background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
            color: #fff;
            padding: 14px 16px;
            display: flex;
            align-items: baseline;
            justify-content: space-between;
        }
        .sidebar-title span { font-size: 16px; font-weight: 700; letter-spacing: 1px; }
        .sidebar-title small { font-size: 11px; opacity: 0.8; letter-spacing: 2px; }
        .sidebar-nav { padding: 10px 0; }
        .sidebar-cat {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 14px;
            color: var(--text-dark);
            transition: var(--transition);
            cursor: pointer;
            border-left: 2px solid transparent;
        }
        .scat-num {
            flex: none;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: linear-gradient(135deg, #d4a93d 0%, #c9982f 100%);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            margin-top: 2px;
            font-family: Arial, sans-serif;
        }
        .scat-main { flex: 1; min-width: 0; }
        .scat-main strong {
            display: block;
            font-size: 14px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 5px;
            letter-spacing: 0.3px;
            line-height: 1.3;
        }
        .scat-keywords {
            display: flex;
            flex-wrap: wrap;
            gap: 4px 6px;
        }
        .scat-keywords em {
            font-style: normal;
            font-size: 11px;
            color: var(--gray-500);
            line-height: 1.4;
            transition: var(--transition);
            cursor: pointer;
        }
        .scat-keywords em:hover { color: var(--blue); }
        .sidebar-cat:hover { background: #fffaf0; padding-left: 18px; }
        .sidebar-cat.active {
            background: #fff5e6;
            border-left-color: #d4a93d;
        }
        .sidebar-cat.active .scat-main strong { color: #c9982f; }
        .sidebar-contact {
            padding: 18px 14px;
            border-top: 1px solid var(--gray-100);
            text-align: center;
        }
        .sidebar-contact h4 {
            font-size: 15px;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .sidebar-contact p {
            font-size: 11px;
            color: var(--gray-400);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .sidebar-phone {
            display: block;
            font-size: 17px;
            font-weight: 700;
            color: var(--blue);
            margin-bottom: 10px;
            letter-spacing: 1px;
        }
        .sidebar-btn {
            display: block;
            width: 100%;
            padding: 10px 0;
            border-radius: 50px;
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            text-align: center;
            transition: var(--transition);
        }
        .sidebar-btn:hover { filter: brightness(1.1); }

        /* 右侧主内容 */
        .products-main { min-width: 0; }

        /* 幻灯轮播 */
        .products-carousel {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 30px;
        }
        .carousel-main {
            display: grid;
            grid-template-columns: 1fr 180px;
            gap: 12px;
            height: 360px;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .carousel-track {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
        }
        .carousel-slide {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.5s ease, visibility 0.5s ease;
            z-index: 1;
        }
        .carousel-slide.active {
            opacity: 1;
            visibility: visible;
            z-index: 2;
        }
        .carousel-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(2,137,217,0.82) 0%, rgba(3,163,255,0.45) 55%, rgba(3,163,255,0.10) 100%);
        }
        .carousel-content {
            position: absolute;
            left: 36px;
            bottom: 52px;
            z-index: 3;
            color: #fff;
            max-width: 420px;
        }
        .carousel-content h2 {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 12px;
            letter-spacing: 1px;
            text-shadow: 0 2px 10px rgba(0,0,0,0.15);
        }
        .carousel-content p {
            font-size: 15px;
            opacity: 0.95;
            letter-spacing: 1px;
        }
        .carousel-arrow {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            z-index: 5;
            width: 38px;
            height: 38px;
            border: none;
            border-radius: 50%;
            background: rgba(255,255,255,0.28);
            color: #fff;
            font-size: 24px;
            line-height: 38px;
            text-align: center;
            cursor: pointer;
            transition: var(--transition);
            backdrop-filter: blur(4px);
        }
        .carousel-arrow:hover { background: rgba(255,255,255,0.5); }
        .carousel-prev { left: 14px; }
        .carousel-next { right: 14px; }

        /* 右侧竖广告 */
        .carousel-ad {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 22px;
            color: #fff;
            text-decoration: none;
            cursor: pointer;
        }
        .carousel-ad-bg {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, #43cea2 0%, #185a9d 100%);
            z-index: 0;
        }
        .carousel-ad-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.25) 0%, transparent 50%);
        }
        .carousel-ad-text {
            position: relative;
            z-index: 1;
        }
        .carousel-ad-text h4 {
            font-size: 24px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 12px;
            text-shadow: 0 2px 8px rgba(0,0,0,0.15);
        }
        .carousel-ad-text p {
            font-size: 13px;
            line-height: 1.5;
            margin-bottom: 18px;
            opacity: 0.95;
        }
        .carousel-ad-text span {
            display: inline-block;
            padding: 7px 18px;
            border-radius: 50px;
            background: rgba(255,255,255,0.92);
            color: #185a9d;
            font-size: 12px;
            font-weight: 700;
            transition: var(--transition);
        }
        .carousel-ad:hover .carousel-ad-text span { background: #fff; transform: translateY(-2px); }

        /* 下方缩略图 */
        .carousel-thumbs {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 10px;
        }
        .thumb {
            position: relative;
            height: 76px;
            border-radius: 10px;
            overflow: hidden;
            background-size: cover;
            background-position: center;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition);
        }
        .thumb::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(0,0,0,0.35);
            transition: var(--transition);
        }
        .thumb span {
            position: absolute;
            left: 10px;
            bottom: 8px;
            z-index: 2;
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            text-shadow: 0 1px 4px rgba(0,0,0,0.5);
        }
        .thumb:hover::before { background: rgba(0,0,0,0.2); }
        .thumb.active {
            border-color: var(--blue);
            box-shadow: 0 6px 18px rgba(3,163,255,0.25);
        }
        .thumb.active::before { background: rgba(0,0,0,0.12); }

        /* 通用小节头部 */
        .section-head {
            margin-bottom: 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .section-head h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
            display: flex;
            align-items: baseline;
            gap: 10px;
        }
        .section-head h3 span {
            padding-left: 12px;
            border-left: 4px solid var(--blue);
        }
        .section-head h3 small {
            font-size: 12px;
            color: var(--gray-400);
            font-weight: 400;
            letter-spacing: 2px;
        }

        /* 明星单品 */
        .products-star { margin-bottom: 36px; }
        .products-star-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .pp-star-card {
            background: #fff;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .pp-star-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .pp-star-img {
            height: 160px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .pp-star-icon { font-size: 64px; }
        .pp-star-info { padding: 16px; text-align: center; }
        .pp-star-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .pp-star-info p {
            font-size: 12px;
            color: var(--gray-400);
            line-height: 1.5;
            margin-bottom: 12px;
            min-height: 36px;
        }
        .pp-star-btn {
            display: inline-block;
            padding: 7px 22px;
            border-radius: 50px;
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            transition: var(--transition);
        }
        .pp-star-btn:hover { filter: brightness(1.1); }

        /* 分类产品区 */
        .products-section {
            background: #fff;
            border-radius: 16px;
            padding: 30px;
            margin-bottom: 30px;
            box-shadow: var(--shadow-sm);
        }
        .products-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 24px;
            padding-bottom: 18px;
            border-bottom: 1px solid var(--gray-100);
        }
        .products-tab {
            padding: 9px 22px;
            border-radius: 50px;
            border: 1px solid var(--gray-200);
            background: #fff;
            font-size: 13px;
            color: var(--gray-600);
            cursor: pointer;
            transition: var(--transition);
            font-family: inherit;
        }
        .products-tab:hover {
            color: var(--blue);
            border-color: var(--blue-light);
        }
        .products-tab.active {
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            color: #fff;
            border-color: transparent;
        }
        .products-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .pp-product-card {
            border: 1px solid var(--gray-100);
            border-radius: 14px;
            overflow: hidden;
            transition: var(--transition);
            background: #fff;
        }
        .pp-product-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .pp-product-img {
            height: 170px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .pp-product-icon { font-size: 68px; }
        .pp-product-info { padding: 16px; text-align: center; }
        .pp-product-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 5px;
        }
        .pp-product-info p {
            font-size: 12px;
            color: var(--gray-400);
            margin-bottom: 12px;
            min-height: 34px;
            line-height: 1.5;
        }
        .pp-product-btn {
            display: inline-block;
            padding: 7px 20px;
            border-radius: 50px;
            border: 1px solid var(--blue);
            color: var(--blue);
            font-size: 12px;
            font-weight: 600;
            transition: var(--transition);
        }
        .pp-product-btn:hover {
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            color: #fff;
            border-color: transparent;
        }
        .products-empty {
            display: none;
            text-align: center;
            padding: 50px 0 20px;
            color: var(--gray-500);
            font-size: 14px;
        }
        .products-empty button {
            border: none;
            background: none;
            color: var(--blue);
            font-size: 14px;
            cursor: pointer;
            font-family: inherit;
            margin-left: 6px;
        }
        .products-empty button:hover { text-decoration: underline; }

        /* 客户案例 / 时间线在首页已有，产品页复用 */
        .products-page .cases { background: #fff; padding: 70px 0; }

        /* ============================================================
           HONOR PAGE 荣誉资质页
           ============================================================ */
        .honor-banner .about-banner-bg {
            opacity: 0.92;
            filter: saturate(0.9) contrast(1.02);
        }
        .honor-banner .about-banner-overlay {
            background: linear-gradient(120deg, rgba(2,96,168,0.74) 0%, rgba(3,163,255,0.50) 52%, rgba(3,163,255,0.20) 100%);
        }
        .honor-banner .about-banner-content h1 {
            text-shadow: 0 4px 22px rgba(0,0,0,0.28);
        }
        .honor-banner .about-banner-content p {
            text-shadow: 0 2px 12px rgba(0,0,0,0.22);
        }

        /* ---------- 品牌荣耀 ---------- */
        .honor-feature { padding: 80px 0 76px; background: #fff; }
        .honor-feature-grid {
            display: grid;
            grid-template-columns: 400px 1fr;
            gap: 60px;
            align-items: center;
        }
        .honor-feature-text h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: 2px;
            margin: 14px 0 18px;
            position: relative;
            padding-bottom: 16px;
        }
        .honor-feature-text h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 54px;
            height: 4px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--blue), var(--blue-light));
        }
        .honor-feature-text > p {
            font-size: 14px;
            color: var(--gray-500);
            line-height: 2;
            margin-bottom: 28px;
        }
        .honor-feature-stats {
            display: flex;
            gap: 34px;
            padding: 22px 0 26px;
            border-top: 1px solid var(--gray-100);
            border-bottom: 1px solid var(--gray-100);
            margin-bottom: 30px;
        }
        .honor-fstat strong {
            display: block;
            font-size: 30px;
            font-weight: 900;
            color: var(--blue);
            line-height: 1.1;
            letter-spacing: 1px;
        }
        .honor-fstat strong span { font-size: 17px; margin-left: 2px; }
        .honor-fstat em {
            font-style: normal;
            font-size: 12px;
            color: var(--gray-400);
            letter-spacing: 0.5px;
        }
        .honor-feature-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .honor-feature-cards .honor-thumb { aspect-ratio: 10 / 7; }
        .honor-feature-cards .honor-meta h4 { font-size: 14px; }

        /* ---------- 荣誉资质网格 ---------- */
        .honor-list {
            background: var(--off-white);
            padding: 80px 0 90px;
        }
        .honor-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        /* ---------- 证书卡片 ---------- */
        .honor-card {
            background: #fff;
            border: 1px solid var(--gray-100);
            border-radius: 14px;
            overflow: hidden;
            transition: var(--transition);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }
        .honor-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .honor-thumb {
            position: relative;
            aspect-ratio: 10 / 7;
            padding: 16px;
            display: flex;
            align-items: stretch;
            justify-content: center;
            background: linear-gradient(180deg, #fbfcfd, #f3f6f9);
            border-bottom: 1px solid var(--gray-100);
        }
        .honor-thumb-inner {
            flex: 1;
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 16px 14px;
            text-align: center;
            border: 2px solid var(--hc);
            border-radius: 3px;
            outline: 1px solid var(--hc);
            outline-offset: 3px;
            background: var(--hc-bg);
            transition: var(--transition);
        }
        .honor-card:hover .honor-thumb-inner { transform: scale(1.015); }
        .ht-emblem {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--hc-emblem);
            color: #fff;
            font-size: 10px;
            font-weight: 800;
            line-height: 1.05;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 2px;
            box-shadow: 0 3px 9px rgba(0,0,0,0.14);
            flex: none;
        }
        .ht-title {
            font-size: 15px;
            font-weight: 800;
            color: var(--hc);
            line-height: 1.4;
            letter-spacing: 0.5px;
        }
        .ht-org {
            font-size: 10px;
            color: #93a1ad;
            letter-spacing: 0.5px;
            line-height: 1.4;
        }
        .ht-seal {
            position: absolute;
            right: 9px;
            bottom: 9px;
            width: 32px;
            height: 32px;
            border: 2px solid rgba(198,56,56,0.5);
            border-radius: 50%;
            color: rgba(198,56,56,0.72);
            font-size: 8px;
            font-weight: 700;
            line-height: 1.05;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            transform: rotate(-13deg);
            letter-spacing: 0;
        }
        .honor-meta {
            padding: 18px 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .honor-meta h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.55;
            margin-bottom: 10px;
            flex: 1;
        }
        .honor-card:hover .honor-meta h4 { color: var(--blue); }
        .honor-date {
            font-size: 12px;
            color: var(--gray-400);
            letter-spacing: 0.5px;
            padding-top: 10px;
            border-top: 1px dashed var(--gray-100);
        }

        /* 证书主题色 —— 金框 / 蓝框 / 红本 / 素纸 */
        .theme-gold {
            --hc: #c19a3c;
            --hc-bg: linear-gradient(160deg, #fffdf6 0%, #fbf1d8 100%);
            --hc-emblem: linear-gradient(180deg, #dcb75c, #bf952f);
        }
        .theme-blue {
            --hc: #2270b0;
            --hc-bg: linear-gradient(160deg, #f8fcff 0%, #e9f4fd 100%);
            --hc-emblem: linear-gradient(180deg, #43a0e2, #1f6eb0);
        }
        .theme-red {
            --hc: #ae3030;
            --hc-bg: linear-gradient(160deg, #fffbfa 0%, #fdecec 100%);
            --hc-emblem: linear-gradient(180deg, #cf5353, #a52020);
        }
        .theme-ink {
            --hc: #4d5c6b;
            --hc-bg: linear-gradient(160deg, #fcfdfe 0%, #edf1f5 100%);
            --hc-emblem: linear-gradient(180deg, #71828f, #4a5866);
        }

        /* ============================================================
           NEWS PAGE 新闻动态页
           ============================================================ */
        .news-banner .about-banner-bg { opacity: 0.9; filter: saturate(0.9); }
        .news-banner .about-banner-overlay {
            background: linear-gradient(120deg, rgba(2,96,168,0.76) 0%, rgba(3,163,255,0.52) 52%, rgba(3,163,255,0.22) 100%);
        }
        .news-banner .about-banner-content h1 { text-shadow: 0 4px 22px rgba(0,0,0,0.28); }
        .news-banner .about-banner-content p { text-shadow: 0 2px 12px rgba(0,0,0,0.22); }

        .np-page { padding: 70px 0 90px; background: var(--off-white); }
        .np-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 36px;
            align-items: start;
        }
        .np-main { min-width: 0; }

        /* 分类 tab */
        .np-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 26px;
        }
        .np-tab {
            padding: 9px 22px;
            border-radius: 50px;
            border: 1px solid var(--gray-200);
            background: #fff;
            color: var(--gray-500);
            font-size: 14px;
            font-family: inherit;
            letter-spacing: 1px;
            cursor: pointer;
            transition: var(--transition);
        }
        .np-tab:hover { color: var(--blue); border-color: var(--blue-light); }
        .np-tab.active {
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            border-color: transparent;
            color: #fff;
            font-weight: 600;
            box-shadow: 0 6px 18px rgba(3,163,255,0.28);
        }

        /* 新闻卡片 */
        .np-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .np-item {
            display: flex;
            flex-direction: column;
            background: #fff;
            border: 1px solid var(--gray-100);
            border-radius: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .np-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .np-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 18px;
            text-align: center;
            overflow: hidden;
            background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
        }
        .np-cover::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(255,255,255,0.10) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,0.10) 1px, transparent 1px);
            background-size: 26px 26px;
            opacity: 0.55;
        }
        .np-cover::after {
            content: '';
            position: absolute;
            width: 170px;
            height: 170px;
            border-radius: 50%;
            top: -60px;
            right: -50px;
            background: radial-gradient(circle, rgba(255,255,255,0.30), transparent 70%);
        }
        .np-cover-tag {
            position: relative;
            z-index: 1;
            font-size: 12px;
            letter-spacing: 3px;
            color: rgba(255,255,255,0.9);
            border: 1px solid rgba(255,255,255,0.5);
            border-radius: 50px;
            padding: 3px 13px;
        }
        .np-cover-txt {
            position: relative;
            z-index: 1;
            font-size: 19px;
            font-weight: 800;
            color: #fff;
            line-height: 1.35;
            letter-spacing: 1px;
            text-shadow: 0 2px 10px rgba(0,0,0,0.18);
        }
        .np-cover.cv-1 { background: linear-gradient(135deg, #0389d9, #025f9e); }
        .np-cover.cv-2 { background: linear-gradient(135deg, #17aec6, #0a7a9c); }
        .np-cover.cv-3 { background: linear-gradient(135deg, #3f7ad0, #1a4c94); }
        .np-cover.cv-4 { background: linear-gradient(135deg, #0e9d9d, #08646f); }

        .np-item h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.6;
            padding: 18px 18px 0;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition);
        }
        .np-item:hover h3 { color: var(--blue); }
        .np-date {
            font-size: 12px;
            color: var(--gray-400);
            padding: 12px 18px 18px;
            letter-spacing: 0.5px;
        }

        /* 分页 */
        .np-pager {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 42px;
        }
        .np-pager button {
            min-width: 38px;
            height: 38px;
            padding: 0 13px;
            border-radius: 8px;
            border: 1px solid var(--gray-200);
            background: #fff;
            color: var(--gray-600);
            font-size: 14px;
            font-family: inherit;
            cursor: pointer;
            transition: var(--transition);
        }
        .np-pager button:hover:not(:disabled) { color: var(--blue); border-color: var(--blue); }
        .np-pager button.active {
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            border-color: transparent;
            color: #fff;
            font-weight: 700;
            box-shadow: 0 6px 18px rgba(3,163,255,0.28);
        }
        .np-pager button:disabled { opacity: 0.42; cursor: not-allowed; }
        .np-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 0;
            color: var(--gray-400);
            font-size: 14px;
            letter-spacing: 1px;
        }

        /* 侧栏 */
        .np-side { display: flex; flex-direction: column; gap: 20px; }
        .np-side-block {
            background: #fff;
            border: 1px solid var(--gray-100);
            border-radius: 14px;
            padding: 22px;
        }
        .np-side-block h3 {
            display: inline-block;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 1px;
            padding-bottom: 10px;
            margin-bottom: 18px;
            border-bottom: 2px solid var(--blue);
        }
        .np-tags { display: flex; flex-wrap: wrap; gap: 8px; }
        .np-tags a {
            font-size: 12px;
            color: var(--gray-500);
            background: var(--off-white);
            border: 1px solid var(--gray-100);
            padding: 6px 13px;
            border-radius: 50px;
            transition: var(--transition);
        }
        .np-tags a:hover {
            color: #fff;
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            border-color: transparent;
        }
        .np-prods { display: flex; flex-direction: column; gap: 6px; }
        .np-prod {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 9px;
            border-radius: 10px;
            transition: var(--transition);
        }
        .np-prod:hover { background: var(--off-white); }
        .np-prod-img {
            flex: none;
            width: 60px;
            height: 60px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 27px;
            background: linear-gradient(135deg, var(--blue-pale), #e8f5ff);
        }
        .np-prod-info { flex: 1; min-width: 0; }
        .np-prod-info strong {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.45;
            margin-bottom: 4px;
        }
        .np-prod:hover .np-prod-info strong { color: var(--blue); }
        .np-prod-info span { font-size: 11px; color: var(--gray-400); }
        .np-side-cta {
            background: linear-gradient(150deg, var(--blue), var(--blue-dark));
            border-color: transparent;
            text-align: center;
        }
        .np-side-cta h3 { color: #fff; border-bottom-color: rgba(255,255,255,0.5); }
        .np-side-cta p {
            font-size: 13px;
            color: rgba(255,255,255,0.88);
            line-height: 1.75;
            margin-bottom: 16px;
        }
        .np-side-btn {
            display: block;
            padding: 11px 0;
            border-radius: 50px;
            background: #fff;
            color: var(--blue-dark);
            font-size: 14px;
            font-weight: 700;
            transition: var(--transition);
        }
        .np-side-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(0,0,0,0.2); }

        /* ============================================================
           NEWS DETAIL 新闻详情页
           ============================================================ */
        .nd-wrap { padding: 122px 0 80px; background: var(--off-white); }
        .nd-crumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--gray-400);
            margin-bottom: 22px;
        }
        .nd-crumb a { color: var(--gray-500); transition: var(--transition); }
        .nd-crumb a:hover { color: var(--blue); }
        .nd-crumb em { font-style: normal; color: var(--blue); }

        .nd-main {
            background: #fff;
            border: 1px solid var(--gray-100);
            border-radius: 16px;
            padding: 44px 48px 40px;
        }
        .nd-head {
            text-align: center;
            padding-bottom: 28px;
            margin-bottom: 32px;
            border-bottom: 1px solid var(--gray-100);
        }
        .nd-head h1 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.5;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
        }
        .nd-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 26px;
            font-size: 13px;
            color: var(--gray-400);
        }
        .nd-meta-item { display: inline-flex; align-items: center; gap: 6px; }
        .nd-meta-item svg { width: 15px; height: 15px; }

        .nd-body p {
            font-size: 15px;
            color: var(--gray-600);
            line-height: 2.1;
            margin-bottom: 22px;
            text-align: justify;
        }
        .nd-lead {
            font-size: 15px;
            color: var(--text-dark);
            line-height: 2;
            background: var(--blue-pale);
            border-left: 4px solid var(--blue);
            border-radius: 0 10px 10px 0;
            padding: 20px 24px;
            margin-bottom: 26px;
        }
        .nd-body h3 {
            position: relative;
            font-size: 19px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 0.5px;
            margin: 36px 0 16px;
            padding-left: 15px;
        }
        .nd-body h3::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            border-radius: 2px;
            background: linear-gradient(180deg, var(--blue), var(--blue-light));
        }
        .nd-quote {
            margin: 28px 0;
            padding: 22px 26px;
            background: var(--off-white);
            border-left: 4px solid var(--blue-light);
            border-radius: 0 12px 12px 0;
        }
        .nd-quote p {
            margin: 0;
            font-size: 15px;
            font-weight: 500;
            color: var(--blue-dark);
            line-height: 1.9;
            text-align: left;
        }
        .nd-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 34px;
            padding-top: 26px;
            border-top: 1px dashed var(--gray-100);
        }
        .nd-tags span {
            font-size: 12px;
            color: var(--blue);
            background: var(--blue-pale);
            padding: 6px 14px;
            border-radius: 50px;
        }
        .nd-foot { margin-top: 34px; }
        .nd-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 26px;
            border-radius: 50px;
            border: 1px solid var(--blue);
            color: var(--blue);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }
        .nd-back svg { width: 16px; height: 16px; transition: var(--transition); }
        .nd-back:hover { background: var(--blue); color: #fff; }
        .nd-back:hover svg { transform: translateX(-3px); }
        .nd-nav {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 26px;
        }
        .nd-nav-item {
            min-width: 0;
            padding: 16px 18px;
            border-radius: 12px;
            border: 1px solid var(--gray-100);
            background: #fff;
            transition: var(--transition);
        }
        .nd-nav-item span {
            display: block;
            font-size: 12px;
            color: var(--gray-400);
            margin-bottom: 6px;
        }
        .nd-nav-item em {
            font-style: normal;
            font-size: 13px;
            color: var(--text-dark);
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .nd-nav-item:hover { border-color: var(--blue); box-shadow: var(--shadow-sm); }
        .nd-nav-item:hover em { color: var(--blue); }
        .nd-nav-item.next { text-align: right; }

        /* ============================================================
           SERVICE PAGE 服务优势页
           ============================================================ */
        .service-banner .about-banner-bg { opacity: 0.9; filter: saturate(0.9); }
        .service-banner .about-banner-overlay {
            background: linear-gradient(120deg, rgba(2,96,168,0.76) 0%, rgba(3,163,255,0.52) 52%, rgba(3,163,255,0.22) 100%);
        }
        .service-banner .about-banner-content h1 { text-shadow: 0 4px 22px rgba(0,0,0,0.28); }
        .service-banner .about-banner-content p { text-shadow: 0 2px 12px rgba(0,0,0,0.22); }

        /* 四大服务承诺 */
        .sv-promise { padding: 80px 0; background: #fff; }
        .sv-promise-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .sv-promise-card {
            position: relative;
            overflow: hidden;
            padding: 34px 26px 30px;
            border-radius: 16px;
            border: 1px solid var(--gray-100);
            background: linear-gradient(180deg, #fff 0%, var(--off-white) 100%);
            transition: var(--transition);
        }
        .sv-promise-card::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            top: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--blue), var(--blue-light));
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }
        .sv-promise-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .sv-promise-card:hover::after { transform: scaleX(1); }
        .sv-promise-num {
            font-size: 34px;
            font-weight: 900;
            line-height: 1;
            letter-spacing: 1px;
            margin-bottom: 16px;
            color: transparent;
            -webkit-text-stroke: 1.5px rgba(3,163,255,0.45);
        }
        .sv-promise-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            transition: var(--transition);
        }
        .sv-promise-card:hover h3 { color: var(--blue); }
        .sv-promise-card p {
            font-size: 13px;
            color: var(--gray-500);
            line-height: 1.85;
        }

        /* 服务数据 */
        .sv-stats {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
        }
        .sv-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            text-align: center;
        }
        .sv-stat strong {
            display: block;
            font-size: 40px;
            font-weight: 900;
            color: #fff;
            line-height: 1.15;
            letter-spacing: 1px;
        }
        .sv-stat strong span { font-size: 20px; margin-left: 2px; }
        .sv-stat em {
            font-style: normal;
            font-size: 13px;
            color: rgba(255,255,255,0.84);
            letter-spacing: 1px;
        }
        .sv-stat + .sv-stat { border-left: 1px solid rgba(255,255,255,0.18); }

        /* ============================================================
           CASES PAGE 客户案例页
           ============================================================ */
        .cases-banner .about-banner-bg { opacity: 0.9; filter: saturate(0.9); }
        .cases-banner .about-banner-overlay {
            background: linear-gradient(120deg, rgba(2,96,168,0.76) 0%, rgba(3,163,255,0.52) 52%, rgba(3,163,255,0.22) 100%);
        }
        .cases-banner .about-banner-content h1 { text-shadow: 0 4px 22px rgba(0,0,0,0.28); }
        .cases-banner .about-banner-content p { text-shadow: 0 2px 12px rgba(0,0,0,0.22); }

        .cs-page { padding: 76px 0 90px; background: var(--off-white); }
        .cs-list { display: flex; flex-direction: column; gap: 16px; }
        .cs-item {
            display: flex;
            gap: 20px;
            padding: 26px 28px;
            background: #fff;
            border: 1px solid var(--gray-100);
            border-radius: 14px;
            transition: var(--transition);
        }
        .cs-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .cs-icon {
            flex: none;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            background: linear-gradient(135deg, var(--blue-pale), #e8f5ff);
            transition: var(--transition);
        }
        .cs-item:hover .cs-icon {
            background: linear-gradient(135deg, var(--blue), var(--blue-dark));
            transform: scale(1.06);
        }
        .cs-body { flex: 1; min-width: 0; }
        .cs-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.5;
            margin-bottom: 10px;
            transition: var(--transition);
        }
        .cs-item:hover .cs-body h3 { color: var(--blue); }
        .cs-body p {
            font-size: 14px;
            color: var(--gray-500);
            line-height: 1.9;
            margin-bottom: 12px;
        }
        .cs-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--blue);
            background: var(--blue-pale);
            padding: 4px 12px;
            border-radius: 50px;
            letter-spacing: 0.5px;
        }
        /* 侧栏纯文字标签（服务行业） */
        .np-tags span {
            font-size: 12px;
            color: var(--gray-500);
            background: var(--off-white);
            border: 1px solid var(--gray-100);
            padding: 6px 13px;
            border-radius: 50px;
        }

        /* ============================================================
           CATEGORIES PAGE 产品分类列表页
           ============================================================ */
        .cat-banner .about-banner-bg { opacity: 0.9; filter: saturate(0.9); }
        .cat-banner .about-banner-overlay {
            background: linear-gradient(120deg, rgba(2,96,168,0.76) 0%, rgba(3,163,255,0.52) 52%, rgba(3,163,255,0.22) 100%);
        }
        .cat-banner .about-banner-content h1 { text-shadow: 0 4px 22px rgba(0,0,0,0.28); }
        .cat-banner .about-banner-content p { text-shadow: 0 2px 12px rgba(0,0,0,0.22); }

        /* 产品中心页 → 分类列表页入口 */
        .cat-entry {
            flex: none;
            font-size: 13px;
            font-weight: 600;
            color: var(--blue);
            letter-spacing: 0.5px;
            transition: var(--transition);
        }
        .cat-entry:hover { transform: translateX(4px); }

        .cat-page { padding: 70px 0 90px; background: var(--off-white); }

        /* 分类快捷跳转 */
        .cat-quick {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            background: #fff;
            border: 1px solid var(--gray-100);
            border-radius: 14px;
            padding: 18px 20px;
            margin-bottom: 28px;
        }
        .cat-quick a {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            color: var(--gray-600);
            background: var(--off-white);
            border: 1px solid var(--gray-100);
            padding: 8px 16px;
            border-radius: 50px;
            transition: var(--transition);
        }
        .cat-quick a em {
            font-style: normal;
            font-size: 11px;
            font-weight: 700;
            color: var(--blue);
            transition: var(--transition);
        }
        .cat-quick a:hover {
            color: #fff;
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            border-color: transparent;
            transform: translateY(-2px);
        }
        .cat-quick a:hover em { color: rgba(255,255,255,0.8); }

        /* 分类区块 */
        .cat-blocks { display: flex; flex-direction: column; gap: 26px; }
        .cat-block {
            background: #fff;
            border: 1px solid var(--gray-100);
            border-radius: 16px;
            padding: 32px 36px 34px;
            scroll-margin-top: 100px;
            transition: var(--transition);
        }
        .cat-block:hover { box-shadow: var(--shadow-md); }

        .cat-head {
            display: flex;
            align-items: center;
            gap: 18px;
            padding-bottom: 20px;
            margin-bottom: 24px;
            border-bottom: 1px solid var(--gray-100);
        }
        .cat-num {
            flex: none;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            background: linear-gradient(135deg, var(--blue), var(--blue-dark));
            box-shadow: 0 6px 16px rgba(3,163,255,0.28);
        }
        .cat-head-text { flex: 1; min-width: 0; }
        .cat-head-text h2 {
            font-size: 21px;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: 1px;
            margin-bottom: 7px;
        }
        .cat-head-text h2 span {
            font-size: 11px;
            font-weight: 400;
            color: var(--gray-400);
            letter-spacing: 2px;
            margin-left: 10px;
        }
        .cat-head-text p {
            font-size: 13px;
            color: var(--gray-500);
            line-height: 1.75;
        }
        .cat-more {
            flex: none;
            display: inline-flex;
            align-items: center;
            padding: 10px 24px;
            border-radius: 50px;
            border: 1px solid var(--blue);
            color: var(--blue);
            font-size: 13px;
            font-weight: 600;
            transition: var(--transition);
        }
        .cat-more:hover {
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            border-color: transparent;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(3,163,255,0.3);
        }

        .cat-subs {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 26px 28px;
        }
        .cat-sub h4 {
            position: relative;
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 0.5px;
            padding-bottom: 10px;
            margin-bottom: 13px;
            border-bottom: 1px solid var(--gray-100);
        }
        .cat-sub h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 30px;
            height: 2px;
            border-radius: 1px;
            background: linear-gradient(90deg, var(--blue), var(--blue-light));
        }
        .cat-sub ul { display: flex; flex-direction: column; gap: 7px; }
        .cat-sub li a {
            display: block;
            font-size: 13px;
            color: var(--gray-500);
            line-height: 1.6;
            transition: var(--transition);
        }
        .cat-sub li a:hover { color: var(--blue); padding-left: 4px; }

        /* ============================================================
           CATEGORY PAGE 产品分类详情页（category.html?cat=xxx）
           ============================================================ */
        .catd-banner .about-banner-bg { opacity: 0.9; filter: saturate(0.9); }
        .catd-banner .about-banner-overlay {
            background: linear-gradient(120deg, rgba(2,96,168,0.76) 0%, rgba(3,163,255,0.52) 52%, rgba(3,163,255,0.22) 100%);
        }
        .catd-banner .about-banner-content h1 { text-shadow: 0 4px 22px rgba(0,0,0,0.28); }
        .catd-banner .about-banner-content p { text-shadow: 0 2px 12px rgba(0,0,0,0.22); }

        .catd-page { padding: 46px 0 90px; background: var(--off-white); }
        .catd-crumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--gray-400);
            margin-bottom: 22px;
        }
        .catd-crumb a { color: var(--gray-500); transition: var(--transition); }
        .catd-crumb a:hover { color: var(--blue); }
        .catd-crumb em { font-style: normal; color: var(--blue); }

        .catd-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 9px;
            margin-bottom: 22px;
        }
        .catd-tab {
            padding: 8px 20px;
            border-radius: 50px;
            border: 1px solid var(--gray-200);
            background: #fff;
            color: var(--gray-500);
            font-size: 13px;
            font-family: inherit;
            letter-spacing: 0.5px;
            cursor: pointer;
            transition: var(--transition);
        }
        .catd-tab:hover { color: var(--blue); border-color: var(--blue-light); }
        .catd-tab.active {
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            border-color: transparent;
            color: #fff;
            font-weight: 600;
            box-shadow: 0 6px 18px rgba(3,163,255,0.28);
        }

        .catd-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .catd-card {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            padding: 22px 16px 18px;
            background: #fff;
            border: 1px solid var(--gray-100);
            border-radius: 12px;
            transition: var(--transition);
        }
        .catd-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .catd-card-img {
            width: 66px;
            height: 66px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            margin-bottom: 14px;
            background: linear-gradient(135deg, var(--blue-pale), #e8f5ff);
            transition: var(--transition);
        }
        .catd-card:hover .catd-card-img {
            background: linear-gradient(135deg, var(--blue), var(--blue-dark));
            transform: scale(1.06);
        }
        .catd-card h3 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.5;
            margin-bottom: 8px;
            min-height: 42px;
            transition: var(--transition);
        }
        .catd-card:hover h3 { color: var(--blue); }
        .catd-card-sub {
            font-size: 11px;
            color: var(--gray-400);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .catd-card-btn {
            width: 100%;
            margin-top: auto;
            padding: 9px 0;
            border-radius: 50px;
            background: var(--off-white);
            color: var(--gray-500);
            font-size: 12px;
            font-weight: 600;
            transition: var(--transition);
        }
        .catd-card:hover .catd-card-btn {
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            color: #fff;
        }

        .catd-nav { display: flex; flex-direction: column; gap: 3px; }
        .catd-nav a {
            display: block;
            padding: 10px 14px;
            border-radius: 8px;
            font-size: 13px;
            color: var(--gray-600);
            transition: var(--transition);
        }
        .catd-nav a:hover { background: var(--off-white); color: var(--blue); padding-left: 18px; }
        .catd-nav a.active {
            background: var(--blue-pale);
            color: var(--blue);
            font-weight: 600;
        }

        /* ============================================================
           PRODUCT DETAIL 产品详情页（product.html?p=产品名）
           ============================================================ */
        .pd-top { padding: 122px 0 0; background: var(--off-white); }
        .pd-crumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--gray-400);
            margin-bottom: 22px;
        }
        .pd-crumb a { color: var(--gray-500); transition: var(--transition); }
        .pd-crumb a:hover { color: var(--blue); }
        .pd-crumb em { font-style: normal; color: var(--blue); }

        .pd-hero {
            display: grid;
            grid-template-columns: 380px 1fr 250px;
            gap: 32px;
            align-items: start;
            padding: 30px;
            margin-bottom: 24px;
            background: #fff;
            border: 1px solid var(--gray-100);
            border-radius: 16px;
        }

        .pd-gallery { min-width: 0; }
        .pd-main-img {
            aspect-ratio: 1 / 1;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 120px;
            border-radius: 14px;
            border: 1px solid var(--gray-100);
            background: linear-gradient(135deg, var(--blue-pale), #e8f5ff);
        }
        .pd-img-note {
            margin-top: 14px;
            text-align: center;
            font-size: 12px;
            color: var(--gray-400);
            letter-spacing: 0.5px;
        }

        .pd-info { min-width: 0; }
        .pd-info h1 {
            font-size: 25px;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.45;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .pd-sell {
            font-size: 14px;
            font-weight: 600;
            color: var(--blue);
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .pd-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            padding-bottom: 20px;
            margin-bottom: 20px;
            border-bottom: 1px solid var(--gray-100);
        }
        .pd-badges span {
            font-size: 12px;
            color: #1c7a4a;
            background: #eaf7f0;
            border: 1px solid #cfeadd;
            padding: 4px 12px;
            border-radius: 50px;
        }
        .pd-rows { display: flex; flex-direction: column; gap: 11px; margin-bottom: 24px; }
        .pd-row { display: flex; gap: 12px; font-size: 14px; }
        .pd-row em { flex: none; width: 76px; font-style: normal; color: var(--gray-400); }
        .pd-row span { min-width: 0; color: var(--gray-600); }
        .pd-actions { display: flex; gap: 12px; margin-bottom: 18px; }
        .pd-btn {
            flex: 1;
            padding: 13px 0;
            text-align: center;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            color: var(--blue);
            background: #fff;
            border: 1px solid var(--blue);
            transition: var(--transition);
        }
        .pd-btn.primary {
            color: #fff;
            border-color: transparent;
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            box-shadow: 0 8px 22px rgba(3,163,255,0.3);
        }
        .pd-btn:hover { transform: translateY(-2px); }
        .pd-btn.primary:hover { box-shadow: 0 12px 30px rgba(3,163,255,0.42); }
        .pd-pay { font-size: 12px; color: var(--gray-400); }
        .pd-pay span { margin-right: 10px; color: var(--gray-500); }

        .pd-assure {
            padding: 20px;
            background: var(--off-white);
            border: 1px solid var(--gray-100);
            border-radius: 12px;
        }
        .pd-assure h3 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-dark);
            padding-bottom: 11px;
            margin-bottom: 14px;
            border-bottom: 1px solid var(--gray-100);
        }
        .pd-assure-list { display: flex; flex-direction: column; gap: 13px; margin-bottom: 18px; }
        .pd-assure-item strong {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 3px;
        }
        .pd-assure-item strong::before { content: '✓'; color: var(--blue); margin-right: 6px; }
        .pd-assure-item span { display: block; padding-left: 15px; font-size: 11px; color: var(--gray-400); }
        .pd-assure-hot {
            padding: 16px 14px;
            text-align: center;
            border-radius: 10px;
            color: #fff;
            background: linear-gradient(150deg, var(--blue), var(--blue-dark));
        }
        .pd-assure-hot span { display: block; font-size: 11px; opacity: 0.85; margin-bottom: 5px; }
        .pd-assure-hot strong { display: block; font-size: 18px; font-weight: 800; letter-spacing: 0.5px; }
        .pd-assure-hot em { font-style: normal; font-size: 11px; opacity: 0.8; }

        .pd-body { padding: 0 0 80px; background: var(--off-white); }
        .pd-block {
            padding: 30px 34px;
            margin-bottom: 22px;
            background: #fff;
            border: 1px solid var(--gray-100);
            border-radius: 16px;
        }
        .pd-block-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 22px;
        }
        .pd-block-title {
            position: relative;
            font-size: 19px;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: 0.5px;
            padding-left: 15px;
            margin-bottom: 22px;
        }
        .pd-block-head .pd-block-title { margin-bottom: 0; }
        .pd-block-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            border-radius: 2px;
            background: linear-gradient(180deg, var(--blue), var(--blue-light));
        }

        .pd-specs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 32px; }
        .pd-spec {
            display: flex;
            gap: 14px;
            padding: 12px 0;
            font-size: 14px;
            border-bottom: 1px dashed var(--gray-100);
        }
        .pd-spec em { flex: none; width: 92px; font-style: normal; color: var(--gray-400); }
        .pd-spec span { color: var(--gray-600); }

        .pd-desc p {
            font-size: 15px;
            color: var(--gray-600);
            line-height: 2.1;
            text-align: justify;
            margin-bottom: 22px;
        }
        .pd-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 26px; }
        .pd-points li {
            position: relative;
            padding-left: 24px;
            font-size: 14px;
            color: var(--gray-600);
            line-height: 1.75;
        }
        .pd-points li::before { content: '✓'; position: absolute; left: 0; top: 0; color: var(--blue); }
        .pd-points li::before { font-weight: 700; }

        .pd-related { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
        .nd-nav-item.disabled { opacity: 0.5; }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .product-subcategory-grid { grid-template-columns: repeat(4, 1fr); gap: 26px; }
            .featured-grid { grid-template-columns: repeat(2, 1fr); }
            .service-grid { grid-template-columns: repeat(2, 1fr); }
            .hero-content h1 { font-size: 38px; }
            .hero-stats { gap: 24px; }
            .about-grid { grid-template-columns: 1fr; gap: 40px; }
            .contact-grid { grid-template-columns: 1fr; }
            .footer-main { flex-wrap: wrap; gap: 36px; }
            .footer-hotline {
                width: 100%;
                border-right: none;
                border-bottom: 1px solid rgba(255,255,255,0.15);
                padding-right: 0;
                padding-bottom: 24px;
                text-align: center;
            }
            .footer-links { width: 100%; }
            .footer-qr { width: 100%; padding-left: 0; margin-top: 10px; }
            .about-intro-grid { grid-template-columns: 1fr; gap: 40px; }
            .about-process-steps { grid-template-columns: repeat(3, 1fr); gap: 30px; }
            .about-stats-grid { grid-template-columns: repeat(2, 1fr); }
            .about-banner-content h1 { font-size: 40px; }
            .products-layout-grid { grid-template-columns: 1fr; }
            .products-sidebar { position: static; }
            .sidebar-nav { display: flex; flex-wrap: wrap; gap: 8px; padding: 14px; }
            .sidebar-cat { flex: 1 1 calc(33.333% - 6px); border-left: none; border-radius: 8px; padding: 10px 12px; background: var(--off-white); gap: 8px; }
            .sidebar-cat:hover { padding-left: 12px; }
            .sidebar-cat.active { border-left-color: transparent; background: #fff5e6; }
            .scat-keywords { display: none; }
            .scat-num { width: 20px; height: 20px; font-size: 11px; }
            .scat-main strong { font-size: 13px; margin-bottom: 0; }
            .sidebar-contact { display: none; }
            .carousel-main { grid-template-columns: 1fr 160px; height: 300px; }
            .carousel-content { left: 28px; bottom: 48px; max-width: 360px; }
            .carousel-content h2 { font-size: 24px; }
            .carousel-ad-text h4 { font-size: 20px; }
            .carousel-ad { padding: 16px; }
            .carousel-thumbs { gap: 8px; }
            .thumb { height: 64px; }
            .thumb span { font-size: 12px; }
            .products-star-grid { grid-template-columns: repeat(2, 1fr); }
            .products-grid { grid-template-columns: repeat(3, 1fr); }
            .honor-feature { padding: 64px 0 60px; }
            .honor-feature-grid { grid-template-columns: 1fr; gap: 44px; }
            .honor-grid { grid-template-columns: repeat(2, 1fr); gap: 22px; }
            .honor-list { padding: 64px 0 72px; }
            .np-layout { grid-template-columns: 1fr 262px; gap: 26px; }
            .np-list { grid-template-columns: repeat(2, 1fr); }
            .nd-main { padding: 36px 32px 34px; }
            .sv-promise-grid { grid-template-columns: repeat(2, 1fr); }
            .cs-page { padding: 60px 0 72px; }
            .cat-subs { grid-template-columns: repeat(3, 1fr); }
            .cat-block { padding: 28px 28px 30px; }
            .catd-grid { grid-template-columns: repeat(3, 1fr); }
            .pd-hero { grid-template-columns: 320px 1fr; gap: 26px; }
            .pd-assure { grid-column: 1 / -1; }
            .pd-assure-list { flex-direction: row; flex-wrap: wrap; gap: 14px 36px; }
            .pd-assure-item { flex: 1 1 160px; }
            .pd-assure-hot { max-width: 260px; margin: 0 auto; }
            .pd-related { grid-template-columns: repeat(3, 1fr); }
        }
        @media (max-width: 768px) {
            .container { padding: 0 24px; }
            #header { padding: 0 24px; }
            nav ul {
                position: fixed;
                top: 76px;
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 24px;
                gap: 20px;
                transform: translateY(-120%);
                transition: var(--transition);
                border-bottom: 1px solid var(--gray-100);
                box-shadow: var(--shadow-md);
            }
            nav ul.open { transform: translateY(0); }
            .menu-toggle { display: flex; }
            .hero { padding: 120px 0 70px; }
            .vision-card { flex-direction: column; }
            .vision-stat { border-right: none; border-bottom: 1px solid var(--gray-100); padding: 24px 16px; }
            .vision-stat:last-of-type { border-bottom: none; }
            .vision-qr { width: 100%; padding: 16px; }
            .hero-content h1 { font-size: 30px; }
            .hero-content .subtitle { font-size: 16px; letter-spacing: 3px; }
            .hero-stats { gap: 16px; }
            .hero-stat h3 { font-size: 24px; }
            .product-subcategory-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; }
            .products-header { padding: 32px 24px 0; }
            .products-body { padding: 32px 24px 40px; }
            .product-tab { padding: 14px 18px; font-size: 14px; }
            .product-tab:not(:last-child)::after { height: 14px; }
            .featured-grid { grid-template-columns: 1fr; }
            .service-grid { grid-template-columns: 1fr; }
            .cases-grid { grid-template-columns: 1fr; }
            .cases-logo-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .ph-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
            .ph-card .ph-ico { font-size: 30px; }
            .ph-card .ph-label { font-size: 12px; padding: 5px 8px; }
            .case-studies-grid { grid-template-columns: 1fr; }
            .cases-tabs { gap: 6px; border-bottom: none; }
            .cases-tab {
                padding: 8px 14px;
                font-size: 13px;
                border: 1px solid var(--gray-100);
                border-radius: 4px;
                margin-bottom: 0;
            }
            .cases-tab.active { border-color: var(--blue); }
            .news-grid { grid-template-columns: 1fr; }
            .news-featured { min-height: 340px; padding: 22px; }
            .news-side-grid { grid-template-columns: 1fr; }
            .about-features { grid-template-columns: 1fr; }
            .about-banner { padding: 110px 0 70px; }
            .about-banner-content h1 { font-size: 30px; }
            .honor-feature { padding: 52px 0 48px; }
            .honor-feature-text h2 { font-size: 26px; }
            .honor-feature-stats { gap: 20px; padding: 18px 0 20px; }
            .honor-fstat strong { font-size: 23px; }
            .honor-fstat em { font-size: 11px; }
            .honor-feature-cards { grid-template-columns: repeat(2, 1fr); gap: 12px; }
            .honor-list { padding: 52px 0 60px; }
            .honor-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
            .honor-thumb { padding: 10px; }
            .honor-thumb-inner { padding: 12px 8px; gap: 6px; outline-offset: 2px; }
            .ht-emblem { width: 32px; height: 32px; font-size: 9px; }
            .ht-title { font-size: 12px; }
            .ht-org { font-size: 9px; }
            .ht-seal { width: 26px; height: 26px; font-size: 7px; right: 6px; bottom: 6px; }
            .honor-meta { padding: 13px 13px 15px; }
            .honor-meta h4 { font-size: 13px; margin-bottom: 8px; }
            .honor-date { font-size: 11px; padding-top: 8px; }
            .np-page { padding: 54px 0 64px; }
            .np-layout { grid-template-columns: 1fr; gap: 30px; }
            .np-list { grid-template-columns: repeat(2, 1fr); gap: 14px; }
            .np-cover { padding: 12px; gap: 7px; }
            .np-cover-tag { font-size: 11px; letter-spacing: 2px; padding: 2px 10px; }
            .np-cover-txt { font-size: 15px; }
            .np-item h3 { font-size: 13px; padding: 14px 14px 0; }
            .np-date { font-size: 11px; padding: 10px 14px 14px; }
            .np-pager { margin-top: 30px; }
            .np-side-block { padding: 18px; }
            .nd-wrap { padding: 96px 0 60px; }
            .nd-main { padding: 26px 20px 26px; }
            .nd-head h1 { font-size: 20px; }
            .nd-meta { gap: 14px; font-size: 12px; }
            .nd-body p { font-size: 14px; line-height: 1.95; margin-bottom: 18px; }
            .nd-lead { padding: 16px; }
            .nd-body h3 { font-size: 17px; margin: 28px 0 14px; }
            .nd-quote { padding: 18px; margin: 22px 0; }
            .nd-nav { grid-template-columns: 1fr; gap: 12px; }
            .nd-nav-item.next { text-align: left; }
            .sv-promise { padding: 56px 0; }
            .sv-promise-grid { grid-template-columns: 1fr; gap: 14px; }
            .sv-promise-card { padding: 24px 20px; }
            .sv-promise-num { font-size: 28px; margin-bottom: 12px; }
            .sv-promise-card h3 { font-size: 16px; }
            .sv-stats { padding: 44px 0; }
            .sv-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 30px 12px; }
            .sv-stat strong { font-size: 30px; }
            .sv-stat strong span { font-size: 16px; }
            .sv-stat + .sv-stat { border-left: none; }
            .cs-page { padding: 52px 0 60px; }
            .cs-item { padding: 20px 18px; gap: 14px; }
            .cs-icon { width: 44px; height: 44px; font-size: 20px; }
            .cs-body h3 { font-size: 15px; margin-bottom: 8px; }
            .cs-body p { font-size: 13px; line-height: 1.8; margin-bottom: 10px; }
            .cat-page { padding: 52px 0 60px; }
            .cat-quick { padding: 14px; gap: 8px; margin-bottom: 20px; }
            .cat-quick a { font-size: 12px; padding: 7px 13px; gap: 5px; }
            .cat-blocks { gap: 16px; }
            .cat-block { padding: 22px 20px 24px; }
            .cat-head { flex-wrap: wrap; gap: 14px; padding-bottom: 16px; margin-bottom: 18px; }
            .cat-num { width: 40px; height: 40px; font-size: 16px; border-radius: 10px; }
            .cat-head-text { flex: 1 1 100%; }
            .cat-head-text h2 { font-size: 18px; }
            .cat-head-text h2 span { display: block; margin: 4px 0 0; letter-spacing: 1.5px; }
            .cat-head-text p { font-size: 12px; }
            .cat-more { width: 100%; justify-content: center; padding: 9px 0; }
            .cat-subs { grid-template-columns: repeat(2, 1fr); gap: 18px 16px; }
            .cat-sub h4 { font-size: 14px; padding-bottom: 8px; margin-bottom: 11px; }
            .cat-sub li a { font-size: 12px; }
            .catd-page { padding: 34px 0 60px; }
            .catd-crumb { font-size: 12px; margin-bottom: 16px; }
            .catd-tabs { gap: 7px; margin-bottom: 16px; }
            .catd-tab { padding: 7px 14px; font-size: 12px; }
            .catd-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
            .catd-card { padding: 16px 12px 14px; border-radius: 10px; }
            .catd-card-img { width: 54px; height: 54px; font-size: 24px; border-radius: 13px; margin-bottom: 11px; }
            .catd-card h3 { font-size: 13px; min-height: 38px; margin-bottom: 7px; }
            .catd-card-sub { font-size: 10px; margin-bottom: 11px; }
            .catd-card-btn { font-size: 11px; padding: 8px 0; }
            .pd-top { padding: 96px 0 0; }
            .pd-crumb { font-size: 12px; margin-bottom: 16px; }
            .pd-hero { grid-template-columns: 1fr; gap: 22px; padding: 18px; }
            .pd-main-img { aspect-ratio: 4 / 3; font-size: 88px; }
            .pd-info h1 { font-size: 19px; }
            .pd-sell { font-size: 13px; }
            .pd-badges { padding-bottom: 16px; margin-bottom: 16px; }
            .pd-row { font-size: 13px; }
            .pd-row em { width: 68px; }
            .pd-actions { flex-direction: column; gap: 10px; }
            .pd-assure-list { flex-direction: column; }
            .pd-block { padding: 22px 18px; }
            .pd-block-title { font-size: 17px; margin-bottom: 18px; }
            .pd-specs { grid-template-columns: 1fr; gap: 0; }
            .pd-spec { font-size: 13px; padding: 10px 0; }
            .pd-spec em { width: 78px; }
            .pd-desc p { font-size: 14px; line-height: 1.95; }
            .pd-points { grid-template-columns: 1fr; gap: 11px; }
            .pd-related { grid-template-columns: repeat(2, 1fr); gap: 12px; }
            .pd-body { padding-bottom: 56px; }
            .about-intro-features { grid-template-columns: 1fr; }
            .about-process-steps { grid-template-columns: 1fr; gap: 26px; }
            .about-stats-grid { grid-template-columns: 1fr 1fr; }
            .about-timeline-year { font-size: 22px; }
            .about-cta-actions { flex-direction: column; align-items: center; }
            .section-title h2 { font-size: 26px; }
            section { padding: 60px 0; }
            .contact-cta .phone { font-size: 28px; }
            .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
            .footer-links { flex-wrap: wrap; gap: 24px 16px; }
            .footer-col { flex: 1 1 calc(50% - 16px); min-width: 130px; }
            .footer-qr { width: 100%; margin-top: 6px; }
            .footer-bottom .footer-nav a { margin: 0 6px; }
            .products-layout { padding-top: 90px; }
            .carousel-main { grid-template-columns: 1fr; height: 260px; }
            .carousel-ad { display: none; }
            .carousel-content {
                left: 24px;
                right: 24px;
                bottom: auto;
                top: 24px;
                max-width: none;
                text-align: center;
            }
            .carousel-content h2 { font-size: 22px; }
            .carousel-arrow { width: 36px; height: 36px; font-size: 22px; line-height: 36px; }
            .carousel-thumbs { gap: 6px; }
            .thumb { height: 54px; border-radius: 8px; }
            .thumb span { font-size: 11px; left: 6px; bottom: 6px; }
            .sidebar-cat { flex: 1 1 calc(50% - 4px); padding: 9px 10px; }
            .products-section { padding: 22px; }
            .products-tabs { gap: 6px; border-bottom: none; padding-bottom: 10px; }
            .products-tab { padding: 7px 14px; font-size: 12px; }
            .products-star-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
            .products-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
            .pp-product-img, .pp-star-img { height: 130px; }
            .pp-product-icon, .pp-star-icon { font-size: 48px; }
            .pp-product-info, .pp-star-info { padding: 12px; }
        }
        @media (max-width: 480px) {
            .product-subcategory-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .products-header { padding: 26px 18px 0; }
            .products-body { padding: 26px 18px 34px; }
            .search-box button { padding: 11px 20px; letter-spacing: 1px; }
            .product-tab { padding: 12px 14px; font-size: 13px; letter-spacing: 0; }
            .product-tabs { gap: 0; }
            .hero-stats { flex-wrap: wrap; }
            .hero-content h1 { font-size: 26px; }
            .btn { padding: 12px 24px; font-size: 14px; }
            .float-widget { display: none; }
        }

        /* ========== FLOATING WIDGET ========== */
        .float-widget { position: fixed; left: 0; top: 120px; z-index: 1000; }
        .float-panel {
            width: 165px;
            background: #fff;
            border-radius: 0 18px 18px 0;
            box-shadow: 6px 6px 24px rgba(0,0,0,0.12);
            overflow: hidden;
            position: relative;
            display: block;
        }
        .float-close {
            position: absolute;
            top: 8px;
            right: 8px;
            width: 22px;
            height: 22px;
            border: none;
            background: rgba(0,0,0,0.08);
            border-radius: 50%;
            cursor: pointer;
            color: #666;
            font-size: 16px;
            line-height: 22px;
            text-align: center;
            transition: var(--transition);
            z-index: 2;
        }
        .float-close:hover { background: rgba(0,0,0,0.16); color: #333; }
        .float-mascot {
            min-height: 150px;
            display: flex;
            align-items: flex-end;
            justify-content: center;
            background: linear-gradient(180deg, #e8f7ff 0%, #fff 70%);
            padding-top: 12px;
            overflow: visible;
            position: relative;
        }
        .float-mascot::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 10px;
            background: rgba(0,0,0,0.06);
            border-radius: 50%;
        }
        .float-mascot svg { width: 140px; height: 138px; position: relative; z-index: 1; }
        .float-body { padding: 12px 14px 16px; text-align: center; }
        .float-title { font-size: 11px; color: #999; margin-bottom: 2px; letter-spacing: 0.5px; }
        .float-phone { font-size: 17px; font-weight: 800; color: var(--blue); margin-bottom: 6px; line-height: 1.2; }
        .float-phone.small { font-size: 13px; margin-bottom: 10px; }
        .float-sub { font-size: 10px; color: #aaa; margin-bottom: 2px; }
        .float-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 4px;
            width: 100%;
            padding: 9px 0;
            border-radius: 20px;
            font-size: 13px;
            color: #fff;
            text-decoration: none;
            margin-bottom: 8px;
            background: linear-gradient(90deg, var(--blue), var(--blue-dark));
            transition: var(--transition);
            font-weight: 600;
        }
        .float-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(3,163,255,0.25); }
        .float-btn.phone { background: linear-gradient(90deg, #f7c948, #e6b82e); color: #333; }
        .float-qr {
            margin: 10px 0 12px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }
        .float-qr img { width: 88px; height: 88px; border-radius: 8px; border: 1px solid #eee; }
        .float-qr p { font-size: 11px; color: #666; margin-top: 4px; line-height: 1.4; }
        .float-bottom { font-size: 12px; color: var(--blue); font-weight: 700; line-height: 1.5; }
        .float-bottom small { font-size: 11px; color: #999; font-weight: 500; }
        .float-toggle {
            display: none;
            position: fixed;
            left: 0;
            top: 140px;
            background: linear-gradient(180deg, var(--blue), var(--blue-dark));
            color: #fff;
            padding: 10px 6px;
            border-radius: 0 10px 10px 0;
            writing-mode: vertical-rl;
            font-size: 14px;
            font-weight: 700;
            cursor: pointer;
            box-shadow: 3px 3px 12px rgba(0,0,0,0.15);
            letter-spacing: 2px;
            transition: var(--transition);
        }
        .float-toggle:hover { transform: translateX(3px); }
    

/* ==== 首页客户案例/新闻动态动态化补充 ==== */
a.case-study-card { display: block; text-decoration: none; }
.case-study-img img.cs-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
a.news-featured, a.news-side-card { text-decoration: none; }