/* ===== 全局重置 ===== */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background: #0b0e1a;
            color: #fff;
            overflow-x: hidden;
            min-height: 100vh;
            user-select: none;
        }

        /* ===== 背景层 ===== */
        .bg-layer {
            position: absolute;
            top: 100vh;
            left: 0;
            width: 100%;
            height: 100vh;
            z-index: 0;
            overflow: hidden;
            background: #0b0e1a;
        }

        .bg-map {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0;
            transition: opacity 1.8s ease-in-out;
        }

        .bg-map.active {
            opacity: 1;
            z-index: 1;
        }

        .bg-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(11, 14, 26, 0.7);
            z-index: 2;
            pointer-events: none;
        }

        .bg-glow {
            position: absolute;
            bottom: -20%;
            right: -10%;
            width: 60%;
            height: 60%;
            background: radial-gradient(ellipse at center, rgba(255, 180, 40, 0.08) 0%, transparent 70%);
            z-index: 2;
            pointer-events: none;
        }

        /* 粒子首屏 canvas（来自 index0907.html） */
        #scene {
            position: absolute;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            display: block;
            z-index: 1;
            background: transparent;
            pointer-events: none;
        }

        /* ===== 首屏装饰层（覆盖首屏 0~100vh；z-index 在 canvas 之上、page-wrapper 之下） ===== */
        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            z-index: 5;
            pointer-events: none;
        }

        /* 左下角注解图（不挡星球、不拦截鼠标） */
        .hero-annotation {
            position: absolute;
            left: 3%;
            bottom: 6%;
            max-width: 360px;
            width: 30vw;
            min-width: 200px;
            height: auto;
            opacity: 0.88;
            filter: drop-shadow(0 4px 18px rgba(0, 0, 0, 0.5));
            user-select: none;
        }

        /* 语音逐字显示文字（无外框，纯文字，悬停星球时跟随音频逐字显示） */
        #audioState {
            position: absolute;
            left: 50%;
            bottom: 16%;
            transform: translateX(-50%) translateY(8px);
            max-width: 540px;
            width: 70%;
            color: #cfe6ff;
            font-size: 15px;
            line-height: 1.7;
            letter-spacing: 1px;
            text-align: center;
            opacity: 0;
            transition: opacity 0.5s ease, transform 0.5s ease;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
        }

        #audioState.show {
            opacity: 1;
            transform: translateX(-50%) translateY(0);
        }

        /* 星球正下方"向下滑动"提示（首屏底部居中，含向下箭头） */
        .scroll-hint {
            position: absolute;
            left: 50%;
            bottom: 5%;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            color: rgba(207, 230, 255, 0.75);
            font-size: 13px;
            letter-spacing: 3px;
            user-select: none;
        }

        .scroll-hint .arrow {
            width: 22px;
            height: 22px;
            border-right: 1.5px solid rgba(207, 230, 255, 0.75);
            border-bottom: 1.5px solid rgba(207, 230, 255, 0.75);
            transform: rotate(45deg);
            animation: scrollHintBounce 1.8s ease-in-out infinite;
        }

        @keyframes scrollHintBounce {

            0%,
            100% {
                transform: rotate(45deg) translate(0, 0);
                opacity: 0.5;
            }

            50% {
                transform: rotate(45deg) translate(6px, 6px);
                opacity: 1;
            }
        }

        /* ===== 全屏加载进度条（数字星球 + 轮播背景加载完成后淡出） ===== */
        .preloader {
            position: fixed;
            inset: 0;
            z-index: 9999;
            display: flex;
            align-items: center;
            justify-content: center;
            background: radial-gradient(circle at 50% 38%, #121a38 0%, #0b0e1a 52%, #06080f 100%);
            transition: opacity 0.7s ease, visibility 0.7s ease;
        }
        .preloader.hide {
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
        }
        .preloader-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
            padding: 0 24px;
            text-align: center;
        }
        .preloader-brand-img {
            width: min(400px, 80vw);
            height: auto;
            display: block;
            filter: drop-shadow(0 8px 26px rgba(6, 10, 24, 0.6));
            margin-bottom: 4px;
        }
        /* ===== 点击进入按钮（加载完成后显示；点击即进入并解锁声音） ===== */
        .preloader-enter {
            margin-top: 10px;
            padding: 15px 56px;
            border-radius: 999px;
            border: 1px solid rgba(95, 184, 255, 0.6);
            background: linear-gradient(135deg, #0C47E0 0%, #7c5fff 100%);
            color: #eaf2ff;
            font-size: 18px;
            font-weight: 700;
            letter-spacing: 8px;
            text-indent: 8px;
            cursor: pointer;
            user-select: none;
            box-shadow: 0 12px 34px rgba(12, 71, 224, 0.4);
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: opacity 0.5s ease, transform 0.5s ease, visibility 0.5s ease, box-shadow 0.2s ease, background 0.2s ease;
        }
        .preloader-enter.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .preloader-enter:hover {
            box-shadow: 0 18px 44px rgba(12, 71, 224, 0.55);
            background: linear-gradient(135deg, #1556f0 0%, #8c6fff 100%);
        }
        .preloader-enter:active {
            transform: translateY(0) scale(0.97);
        }
        .preloader-enter .arrow {
            display: inline-block;
            width: 0;
            height: 0;
            border-left: 9px solid #eaf2ff;
            border-top: 6px solid transparent;
            border-bottom: 6px solid transparent;
            margin-left: 14px;
            margin-bottom: 1px;
        }
        .preloader-bar {
            width: min(340px, 72vw);
            height: 4px;
            border-radius: 999px;
            background: rgba(95, 184, 255, 0.14);
            overflow: hidden;
            margin-top: 14px;
        }
        .preloader-bar-fill {
            height: 100%;
            width: 0%;
            border-radius: 999px;
            background: linear-gradient(90deg, #0C47E0, #5fb8ff, #7c5fff);
            box-shadow: 0 0 16px rgba(95, 184, 255, 0.85);
            transition: width 0.2s ease;
        }
        .preloader-meta {
            display: flex;
            align-items: baseline;
            gap: 16px;
            color: #8895aa;
            font-size: 13px;
            letter-spacing: 1px;
        }
        .preloader-pct {
            font-size: 22px;
            font-weight: 700;
            color: #5fb8ff;
            font-variant-numeric: tabular-nums;
            letter-spacing: 0;
        }
        .preloader-tip {
            opacity: 0.85;
        }

        .page-wrapper {
            position: relative;
            z-index: 10;
            min-height: 100vh;
            padding-top: 100vh;
            padding-bottom: 40px;
        }

        /* ===== 首屏 ===== */
        .hero-section {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 100vh;
            padding: 80px 48px 32px 48px;
        }

        .header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            flex-wrap: wrap;
            gap: 12px 20px;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 14, 26, 0);
            backdrop-filter: blur(10px);
            padding: 16px 48px;
        }

        /* 所有锚点定位目标下移避开 fixed 导航栏遮挡 */
        section[id],
        footer[id] {
            scroll-margin-top: 100px;
        }

        /* 以下三个目标为 div[id]（非 section），选择器 section[id] 匹配不到，
           单独覆盖；并多留 20px 让标题落在导航栏下方一部分 */
        #heroSlider,
        #solution-categories,
        #global-creative {
            scroll-margin-top: 120px;
        }

        /* FAQ 板块顶端留白更小，锚点偏移略收 */
        #faq-section {
            scroll-margin-top: 84px;
        }

        .indent {
            text-indent: 2em;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 22px;
            flex-wrap: wrap;
        }

        .logo-divider {
            width: 2px;
            height: 22px;
            background: #ffffff;
            flex-shrink: 0;
        }

        .brand-logo {
            /* 60px→52px：为新增的「新闻资讯」导航项腾宽度（logo 宽 727→630）。
               1920 单行预算见 .header-tools 注释，改任何头部尺寸都要重新实测一遍 */
            height: 52px;
            width: auto;
            display: block;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 24px;
            /* 导航整体不可拆：宁可它作为一个整块留在第一行，也不允许内部换行 */
            flex-wrap: nowrap;
        }

        .nav {
            display: flex;
            gap: 8px;
            font-size: 14px;
            font-weight: 400;
            color: rgba(173, 173, 173, 0.85);
            /* 每个菜单项自身也不许折行（如"关于我们"被拆成两行） */
            flex-wrap: nowrap;
            white-space: nowrap;
        }

        .nav a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s;
            position: relative;
            cursor: pointer;
        }

        .nav a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: #fff;
            transition: width 0.3s;
        }

        .nav a:hover {
            color: #fff;
        }

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

        .nav .sep {
            color: rgba(255, 255, 255, 0.2);
            pointer-events: none;
        }

        /* ===== Hero 滑动 ===== */
        .main {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: 20px 0 10px 0;
        }

        .hero-slider {
            position: relative;
            width: 100%;
            max-width: 1100px;
            overflow: hidden;
            min-height: 180px;
            margin: 0 auto;
        }

        .hero-slider-inner {
            display: flex;
            width: 200%;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .hero-slider-inner.shifted {
            transform: translateX(-50%);
        }

        .hero-slide {
            width: 50%;
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: 10px 20px;
            min-height: 180px;
        }

        .hero-slide h1 {
            font-size: clamp(32px, 5.2vw, 86px);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 4px;
            color: #fff;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
            max-width: 1100px;
            margin-bottom: 18px;
            display: flex;
            flex-direction: column;
            width: 100%;
            padding: 0 40px;
        }

        .hero-slide h1 .accent {
            color: #0C47E0;
        }

        .line-left {
            text-align: left;
            display: block;
            width: 100%;
        }

        .line-right {
            text-align: right;
            display: block;
            width: 100%;
        }

        .hero-slide .sub {
            font-size: clamp(13px, 1.4vw, 20px);
            font-weight: 300;
            letter-spacing: 6px;
            color: rgba(255, 255, 255, 0.7);
            text-shadow: 0 2px 16px rgba(0, 0, 0, 0.4);
            max-width: 900px;
        }

        /* ===== About Slide ===== */
        .about-slide {
            padding: 10px 30px;
        }

        .about-wrapper {
            display: flex;
            gap: 40px;
            align-items: center;
            width: 100%;
        }

        /* 左侧竖排：Logo 上移（align-self:flex-start）后下方接两张小图 */
        .about-logo {
            flex: 0 0 280px;
            max-width: 280px;
            align-self: flex-start;
        }

        .about-logo > img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }

        /* Logo 下方两张小图（gq.jpg / yxzz.jpg），点击用页脚二维码的同一个模态框放大 */
        .about-mini-gallery {
            display: flex;
            gap: 10px;
            margin-top: 14px;
        }

        .about-mini-gallery img {
            width: calc((100% - 10px) / 2);
            aspect-ratio: 4 / 3;
            object-fit: cover;
            display: block;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.14);
            background: rgba(255, 255, 255, 0.04);
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .about-mini-gallery img:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.36);
        }

        .about-content-right {
            flex: 1;
            min-width: 0;
        }

        .about-slide .about-brand-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            margin-bottom: 12px;
        }

        .about-slide .about-name {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 2px;
        }

        .about-slide .about-desc-long {
            font-size: clamp(14px, 1.1vw, 17px);
            font-weight: 300;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.82);
            letter-spacing: 0.5px;
            max-width: 1000px;
            margin: 0 auto;
            text-align: left;
            padding: 0 10px;
        }

        .about-slide .about-desc-long p {
            margin-bottom: 16px;
        }

        .about-slide .about-desc-long p:last-child {
            margin-bottom: 0;
        }

        /* ===== 按钮 ===== */
        .btn-group {
            display: flex;
            gap: 20px;
            justify-content: center;
            align-items: center;
            flex-wrap: wrap;
            margin-top: 12px;
            min-height: 70px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 52px;
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            background: #0C47E0;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            transition: transform 0.25s, box-shadow 0.3s, background 0.3s;
            box-shadow: 0 8px 30px rgba(12, 71, 224, 0.40);
            letter-spacing: 2px;
            text-decoration: none;
            min-width: 160px;
        }

        .btn-primary:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 12px 40px rgba(12, 71, 224, 0.55);
        }

        .btn-primary.is-back {
            background: rgba(255, 255, 255, 0.10);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
            border: 1px solid rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(4px);
            min-width: 140px;
        }

        .btn-primary.is-back:hover {
            background: rgba(255, 255, 255, 0.18);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
            transform: translateY(-3px) scale(1.02);
        }

        .btn-primary .arrow-left {
            display: inline-block;
            font-size: 20px;
            line-height: 1;
            transition: transform 0.2s;
        }

        .btn-primary.is-back:hover .arrow-left {
            transform: translateX(-4px);
        }

        /* ===== 全产业链 ===== */
        .industry-chain {
            max-width: 1440px;
            margin: 0 auto;
            padding: 60px 48px 20px 48px;
            width: 100%;
        }

        .chain-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .chain-header h2 {
            font-size: clamp(28px, 4vw, 48px);
            font-weight: 700;
            color: #fff;
            letter-spacing: 4px;
            margin-bottom: 12px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }

        .chain-header p {
            font-size: clamp(13px, 1.2vw, 18px);
            font-weight: 300;
            color: rgba(255, 255, 255, 0.6);
            letter-spacing: 4px;
        }

        /* ===== Tabs ===== */
        .recommend-tabs {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px 16px;
            margin-bottom: 30px;
        }

        .recommend-tabs .tab {
            padding: 8px 28px;
            font-size: 16px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.5);
            cursor: pointer;
            border-bottom: 3px solid transparent;
            transition: color 0.3s, border-color 0.3s;
            white-space: nowrap;
            letter-spacing: 1px;
        }

        .recommend-tabs .tab.active {
            color: #f5b642;
            border-bottom-color: #f5b642;
        }

        .recommend-tabs .tab:hover {
            color: #fff;
        }

        /* ===== 项目卡片 ===== */
        .project-grid-wrapper {
            position: relative;
            min-height: 400px;
        }

        .project-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-bottom: 30px;
            transition: opacity 0.4s ease;
        }

        .project-grid.hidden {
            display: none;
        }

        .project-card {
            background: rgba(20, 24, 38, 0.8);
            backdrop-filter: blur(6px);
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
            cursor: pointer;
        }

        .project-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
            border-color: rgba(245, 182, 66, 0.20);
        }

        .card-image {
            height: 200px;
            background-size: cover;
            background-position: center;
            background-color: #1a1f2f;
            position: relative;
        }

        .card-image .placeholder-text {
            position: absolute;
            bottom: 12px;
            left: 16px;
            font-size: 14px;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.3);
            letter-spacing: 2px;
        }

        .card-body {
            padding: 24px 24px 28px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-body h4 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }

        .card-body .details {
            display: flex;
            gap: 16px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 8px;
        }

        .card-body .type {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 10px;
        }

        .card-body .tech {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }

        .read-more {
            align-self: flex-end;
            font-size: 13px;
            font-weight: 600;
            color: #f5b642;
            text-decoration: none;
            letter-spacing: 1px;
            transition: color 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .read-more:hover {
            color: #fff;
        }

        .more-link-wrapper {
            display: flex;
            justify-content: flex-end;
            margin-bottom: 30px;
        }

        .more-link {
            font-size: 16px;
            font-weight: 500;
            color: #f5b642;
            text-decoration: none;
            letter-spacing: 2px;
            border-bottom: 2px solid rgba(245, 182, 66, 0.3);
            padding-bottom: 4px;
            transition: color 0.3s, border-color 0.3s;
        }

        .more-link:hover {
            color: #fff;
            border-color: #fff;
        }

        .more-link .arrow {
            margin-left: 6px;
        }

        /* ============================================================
           顶部标题栏工具入口（分两组，避免混成一排）：
           ① 创展AI工具    —— 外链主入口，金色描边胶囊 + 20px 大字
           ② 智能清单编辑 / 智能可视化编辑 —— 本站工具，13px 金色渐变文字
           两组之间用一根竖向金色发光分隔线隔开；金色金属渐变 + 下划线 + 扫光
           ============================================================ */
        .header-tools {
            display: flex;
            align-items: center;
            /* 组间距（创展AI｜分隔线｜本站工具）比组内间距大，形成"左边一个主入口 + 右边两个工具"的层次。
               注意：本组宽度直接决定右侧导航会不会被挤换行——1920 窗口下可用宽度约 1903px（含滚动条），
               logo 630 + 本组 369 + 导航 634 + 两道 20px flex gap + 96px 内边距 = 1769，
               还剩约 134px 余量。改这里任何尺寸都要重新量一遍（agent-browser 实测各宽度）。 */
            gap: 14px;
            flex-wrap: wrap;
            /* 整组位置：往下移一点，靠左（紧跟 logo 之后，不再居中）。
               左内边距归零，logo 与本组之间靠 flex gap 分隔，省出 12px 宽度 */
            margin-top: 26px;
            margin-right: auto;
            padding-left: 0;
        }

        /* 右侧两个本站工具归为一组：组内间距略小，视觉上读作"两个按钮" */
        .header-tools .tools-site {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* 竖向分隔线：金色渐变 + 外发光，把主入口与本站工具明确分开 */
        .header-tools .tools-divider {
            flex: 0 0 auto;
            width: 1px;
            height: 30px;
            opacity: 0.9;
            background: linear-gradient(180deg,
                    rgba(255, 216, 115, 0) 0%,
                    #ffd873 42%,
                    #e9a825 58%,
                    rgba(233, 168, 37, 0) 100%);
            box-shadow: 0 0 10px rgba(255, 205, 90, 0.55);
        }

        .header-tools a.nav-tool-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 0 2px;
            text-decoration: none;
            transition: filter 0.3s ease, transform 0.3s ease;
        }

        .header-tools a.nav-tool-link .tool-label {
            position: relative;
            display: inline-block;
            /* 让金色下划线落在盒子内部 */
            padding-bottom: 4px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            line-height: 1.25;
            white-space: nowrap;
            /* 第一层＝白色高光（负责扫光），第二层＝金色金属渐变（色值取自 Logo/AI工具.png） */
            background-image:
                linear-gradient(100deg,
                    rgba(255, 255, 255, 0) 42%,
                    rgba(255, 255, 255, 0.92) 50%,
                    rgba(255, 255, 255, 0) 58%),
                linear-gradient(180deg, #fff5cc 0%, #ffd873 34%, #e9a825 70%, #c9871a 100%);
            background-size: 320% 100%, 100% 100%;
            background-position: 100% 0, 0 0;
            background-repeat: no-repeat, no-repeat;
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            -webkit-text-fill-color: transparent;
            animation: nav-tool-shine 5s ease-in-out infinite;
        }

        /* 高光自左向右扫过一遍后停顿，再进入下一轮（与 AI工具 图的扫光节奏一致） */
        @keyframes nav-tool-shine {

            0%,
            30% {
                background-position: 100% 0, 0 0;
            }

            60%,
            100% {
                background-position: -8% 0, 0 0;
            }
        }

        .header-tools a.nav-tool-link .tool-label::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 1px;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(90deg,
                    rgba(255, 216, 115, 0) 0%,
                    #ffd873 20%,
                    #e9a825 78%,
                    rgba(233, 168, 37, 0) 100%);
            animation: nav-tool-glow 2.6s ease-in-out infinite;
        }

        @keyframes nav-tool-glow {

            0%,
            100% {
                opacity: 0.7;
            }

            50% {
                opacity: 1;
            }
        }

        .header-tools a.nav-tool-link:hover {
            filter: brightness(1.12) drop-shadow(0 0 8px rgba(255, 205, 90, 0.45));
            transform: translateY(-1px);
        }

        /* ---------- 创展AI工具（主入口）：金色描边胶囊 + 放大字号 ----------
           与右侧两个本站工具拉开层次：字号 16px（对面 13px，约 1.2 倍）、带边框/底色/图标，
           点击热区与视觉重量都明显更大。
           尺寸受总宽度约束（见 .header-tools 注释）：16px + 5/12 内边距时本组约 369px，
           再放大就会把右侧导航挤到第二行，勿随意调大。 */
        .header-tools a.nav-tool-link.is-ai {
            gap: 6px;
            padding: 5px 12px;
            border: 1px solid rgba(245, 182, 66, 0.5);
            border-radius: 999px;
            background: rgba(245, 182, 66, 0.09);
            box-shadow: 0 4px 18px rgba(245, 182, 66, 0.18);
            transition: filter 0.3s ease, transform 0.3s ease,
                background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .header-tools a.nav-tool-link.is-ai .tool-icon {
            font-size: 15px;
            line-height: 1;
            color: #ffd873;
            text-shadow: 0 0 10px rgba(255, 205, 90, 0.75);
            animation: nav-tool-glow 2.6s ease-in-out infinite;
        }

        .header-tools a.nav-tool-link.is-ai .tool-label {
            font-size: 16px;
            letter-spacing: 1.5px;
            padding-bottom: 2px;
        }

        /* 胶囊已有边框做视觉锚点，去掉下划线避免双层描边 */
        .header-tools a.nav-tool-link.is-ai .tool-label::after {
            display: none;
        }

        .header-tools a.nav-tool-link.is-ai:hover {
            background: rgba(245, 182, 66, 0.16);
            border-color: rgba(255, 216, 115, 0.85);
            box-shadow: 0 8px 26px rgba(255, 205, 90, 0.34);
            transform: translateY(-2px);
        }

        /* 窄屏展示简称，防止顶栏换行 */
        .header-tools a.nav-tool-link .label-short {
            display: none;
        }

        /* ============================================================
           解决方案分类模块（纯静态HTML + JS切换）
           ============================================================ */
        .solution-categories {
            padding: 40px 0 30px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            margin-bottom: 20px;
            position: relative;
        }

        .solution-header {
            text-align: center;
            margin-bottom: 32px;
        }

        .solution-header h2 {
            font-size: clamp(24px, 3.2vw, 40px);
            font-weight: 700;
            color: #fff;
            letter-spacing: 6px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }

        .solution-header .solution-sub {
            font-size: clamp(13px, 1.2vw, 18px);
            font-weight: 300;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 6px;
            margin-top: 2px;
            margin-bottom: 12px;
        }

        .solution-header .solution-desc {
            font-size: clamp(14px, 1.1vw, 17px);
            font-weight: 300;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            letter-spacing: 2px;
            max-width: 900px;
            margin: 0 auto;
        }

        /* ---- 卡片网格（静态） ---- */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            transition: opacity 0.4s ease;
        }

        .solution-grid.hidden {
            display: none;
        }

        .solution-card {
            background: rgba(20, 24, 38, 0.8);
            backdrop-filter: blur(6px);
            border-radius: 16px;
            padding: 28px 22px 24px 22px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
            min-height: 260px;
            cursor: pointer;
        }

        .solution-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, transparent, #f5b642, transparent);
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .solution-card:hover::before {
            opacity: 1;
        }

        .solution-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 14px 40px rgba(0, 0, 0, 0.5);
            border-color: rgba(245, 182, 66, 0.20);
        }

        .solution-card .card-header-row {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            margin-bottom: 8px;
            flex-wrap: wrap;
            gap: 4px 12px;
        }

        .solution-card .card-count {
            font-size: 32px;
            font-weight: 700;
            color: #f5b642;
            letter-spacing: 1px;
            line-height: 1.2;
        }

        .solution-card .card-title {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 2px;
            line-height: 1.3;
        }

        .solution-card .card-desc {
            font-size: 14px;
            font-weight: 300;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .solution-card .card-image-placeholder {
            width: 100%;
            aspect-ratio: 16 / 9;
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 16px;
            background-color: #0d101f;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: border-color 0.3s ease;
            flex-shrink: 0;
        }

        .solution-card:hover .card-image-placeholder {
            border-color: rgba(245, 182, 66, 0.3);
        }

        .solution-card .card-image-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: transform 0.4s ease;
        }

        .solution-card:hover .card-image-placeholder img {
            transform: scale(1.02);
        }

        .solution-card .card-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px 12px;
            padding-top: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            flex-shrink: 0;
            margin-top: auto;
        }

        .solution-card .card-range {
            font-size: 14px;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.4);
            letter-spacing: 1px;
        }

        .solution-card .card-btn {
            font-size: 14px;
            font-weight: 600;
            color: #f5b642;
            text-decoration: none;
            letter-spacing: 1px;
            padding: 4px 0;
            border-bottom: 2px solid rgba(245, 182, 66, 0.3);
            transition: color 0.25s, border-color 0.25s;
            cursor: pointer;
            background: none;
            border-top: none;
            border-left: none;
            border-right: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .solution-card .card-btn:hover {
            color: #fff;
            border-color: #fff;
        }

        /* ---- 详情页（静态） ---- */
        .solution-detail {
            display: none;
            animation: fadeInUp 0.4s ease;
        }

        .solution-detail.active {
            display: block;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .detail-header {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .detail-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 15px;
            font-weight: 400;
            cursor: pointer;
            transition: color 0.25s, transform 0.2s;
            background: none;
            border: none;
            padding: 8px 16px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .detail-back:hover {
            color: #fff;
            transform: translateX(-4px);
            background: rgba(255, 255, 255, 0.08);
        }

        .detail-back .arrow-icon {
            font-size: 18px;
            line-height: 1;
        }

        .detail-title-area {
            flex: 1;
            min-width: 200px;
        }

        .detail-title-area h2 {
            font-size: clamp(24px, 2.8vw, 36px);
            font-weight: 700;
            color: #fff;
            letter-spacing: 3px;
        }

        .detail-title-area .detail-range {
            font-size: 14px;
            font-weight: 300;
            color: rgba(255, 255, 255, 0.4);
            letter-spacing: 2px;
            margin-top: 2px;
        }

        .detail-title-area .detail-count {
            font-size: 14px;
            font-weight: 400;
            color: #f5b642;
            margin-left: 12px;
        }

        .detail-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .detail-item {
            background: rgba(20, 24, 38, 0.7);
            backdrop-filter: blur(4px);
            border-radius: 14px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .detail-item:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.4);
            border-color: rgba(245, 182, 66, 0.15);
        }

        .detail-item .item-image {
            width: 100%;
            aspect-ratio: 16 / 9;
            background-color: #0d101f;
            overflow: hidden;
        }

        .detail-item .item-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: transform 0.4s ease;
        }

        .detail-item:hover .item-image img {
            transform: scale(1.03);
        }

        .detail-item .item-body {
            padding: 18px 20px 22px 20px;
        }

        .detail-item .item-id {
            font-size: 13px;
            font-weight: 500;
            color: #f5b642;
            letter-spacing: 1px;
            margin-bottom: 4px;
        }

        .detail-item .item-name {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1px;
            margin-bottom: 6px;
        }

        .detail-item .item-desc {
            font-size: 13px;
            font-weight: 300;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.6;
            letter-spacing: 0.3px;
        }

        /* ===== 全球创意 ===== */
        .global-creative {
            text-align: center;
            padding: 40px 20px 30px 20px;
            margin-bottom: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .global-creative h2 {
            font-size: clamp(26px, 3.6vw, 44px);
            font-weight: 700;
            color: #fff;
            letter-spacing: 4px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
            margin-bottom: 20px;
        }

        .global-creative p {
            font-size: clamp(15px, 1.2vw, 18px);
            font-weight: 300;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 1px;
            max-width: 1000px;
            margin: 0 auto;
        }

        /* ===== 技术网格 ===== */
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin: 30px 0 40px 0;
        }

        .tech-item {
            position: relative;
            overflow: hidden;
            border-radius: 16px;
            background: #0d101f;
            aspect-ratio: 1/1;
            cursor: pointer;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .tech-item:hover {
            transform: scale(1.02);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
            border-color: rgba(245, 182, 66, 0.3);
        }

        .tech-item video {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 1;
            transition: opacity 0.4s ease;
            background: #0d101f;
        }

        .tech-item:hover video {
            opacity: 1;
        }

        .tech-item .content {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 100%;
            height: 100%;
            padding: 20px;
            text-align: center;
            background: rgba(11, 14, 26, 0.7);
            transition: background 0.4s ease;
            pointer-events: none;
        }

        .tech-item:hover .content {
            background: rgba(11, 14, 26, 0.3);
        }

        .tech-item .icon {
            font-size: 42px;
            margin-bottom: 8px;
            display: block;
        }

        .tech-item .name {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 2px;
            margin-bottom: 4px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.8);
        }

        .tech-item .en {
            font-size: 13px;
            font-weight: 300;
            color: rgba(255, 255, 255, 0.6);
            letter-spacing: 1px;
            text-transform: uppercase;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8);
        }

        /* ===== 公司介绍 ===== */
        .about-section {
            max-width: 1440px;
            margin: 0 auto;
            padding: 50px 48px 40px 48px;
            width: 100%;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .about-container {
            display: flex;
            flex-direction: column;
            gap: 36px;
        }

        .about-title {
            text-align: center;
        }

        .about-title h2 {
            font-size: clamp(32px, 4.4vw, 52px);
            font-weight: 700;
            color: #fff;
            letter-spacing: 6px;
            text-shadow: 0 2px 24px rgba(0, 0, 0, 0.4);
            margin-bottom: 12px;
        }

        .about-title h2 .gold {
            color: #f5b642;
        }

        .about-title p {
            font-size: clamp(14px, 1.2vw, 20px);
            font-weight: 300;
            color: rgba(255, 255, 255, 0.6);
            letter-spacing: 4px;
        }

        .about-main {
            display: flex;
            gap: 40px;
            align-items: stretch;
        }

        .about-video {
            flex: 0 0 42%;
            border-radius: 16px;
            overflow: hidden;
            background: #0d101f;
            aspect-ratio: 16/9;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .about-video video {
            width: 100%;
            height: 100%;
            object-fit: contain;
            display: block;
        }

        .about-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 24px;
        }

        .stats-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
        }

        .stat-card {
            display: flex;
            flex-direction: column;
            align-items: center;
            min-width: 90px;
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform 0.25s, border-color 0.25s;
            flex: 0 1 auto;
        }

        .stat-card:hover {
            transform: translateY(-4px);
            border-color: rgba(245, 182, 66, 0.25);
        }

        .stat-number {
            font-size: clamp(24px, 2.2vw, 34px);
            font-weight: 700;
            color: #f5b642;
            letter-spacing: 2px;
            line-height: 1.2;
        }

        .stat-label {
            font-size: clamp(10px, 0.8vw, 13px);
            font-weight: 300;
            color: rgba(255, 255, 255, 0.55);
            letter-spacing: 1px;
            margin-top: 4px;
            text-align: center;
        }

        .about-description {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .about-description p {
            font-size: clamp(14px, 1.1vw, 17px);
            font-weight: 300;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.75);
            letter-spacing: 0.5px;
            text-align: justify;
        }

        .about-description p strong {
            color: #f5b642;
            font-weight: 600;
        }

        .service-header p strong {
            color: #f5b642;
            font-weight: 600;
        }

        /* ===== P·P·D·V·E·O ===== */
        .service-section {
            max-width: 1440px;
            margin: 0 auto;
            padding: 50px 48px 40px 48px;
            width: 100%;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .service-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .service-header h2 {
            font-size: clamp(28px, 3.6vw, 44px);
            font-weight: 700;
            color: #fff;
            letter-spacing: 4px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
            margin-bottom: 16px;
        }

        .service-header h2 .gold {
            color: #f5b642;
        }

        .service-header p {
            font-size: clamp(14px, 1.1vw, 18px);
            font-weight: 300;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 1px;
            max-width: 1000px;
            margin: 0 auto;
            text-align: center;
        }

        .service-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 28px;
            margin-bottom: 30px;
        }

        .service-card {
            background: rgba(20, 24, 38, 0.8);
            backdrop-filter: blur(6px);
            border-radius: 16px;
            padding: 32px 24px 28px 24px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, transparent, #f5b642, transparent);
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
            border-color: rgba(245, 182, 66, 0.25);
        }

        .service-card img {
            width: 70px;
            height: 70px;
            margin-bottom: 30px;
        }

        .service-card .step-label {
            font-size: 13px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.3);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 4px;
        }

        .service-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: #f5b642;
            letter-spacing: 2px;
            margin-bottom: 4px;
        }

        .service-card .sub-line {
            font-size: 14px;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .service-card .desc {
            font-size: 14px;
            font-weight: 300;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            letter-spacing: 0.5px;
        }

        /* ===== 生态伙伴 ===== */
        .partner-section {
            max-width: 1440px;
            margin: 0 auto;
            padding: 50px 48px 40px 48px;
            width: 100%;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .partner-header {
            text-align: center;
            margin-bottom: 36px;
        }

        .partner-header .partner-subtitle {
            font-size: clamp(13px, 1vw, 16px);
            font-weight: 300;
            color: rgba(255, 255, 255, 0.4);
            letter-spacing: 4px;
            margin-bottom: 6px;
        }

        .partner-header h2 {
            font-size: clamp(28px, 3.6vw, 44px);
            font-weight: 700;
            color: #fff;
            letter-spacing: 4px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
            margin-bottom: 6px;
        }

        .partner-header h2 .gold {
            color: #f5b642;
        }

        .partner-header .partner-desc {
            font-size: clamp(14px, 1.1vw, 18px);
            font-weight: 300;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 3px;
        }

        .partner-grid {
            overflow: hidden;
            position: relative;
            width: 100%;
            margin-bottom: 30px;
        }

        .partner-track {
            display: flex;
            width: 400%;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
            will-change: transform;
        }

        .partner-slide {
            flex: 0 0 25%;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px 16px;
            padding: 0;
        }

        .partner-item {
            padding: 12px 28px;
            border: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 60px;
            transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
            cursor: default;
            /* background: rgba(238, 237, 237, 0.589); */
            /* 灰白色半透明背景 */
            border-radius: 8px;
        }

        .partner-item:hover {
            transform: translateY(-3px);
            border-color: rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.12);
            background-clip: content-box;
            /* hover 时保持一致 */
        }

        .partner-item img {
            width: 100%;
            max-width: 250px;
            height: 70px;
            object-fit: contain;
        }

        /* ===== 常见问题 FAQ（GEO 权重最高的一段）
           实现要点：用原生 <details>/<summary>，答案文本始终存在于静态 DOM 中，
           不执行 JS 的爬虫（GPTBot / PerplexityBot / 百度蜘蛛）也能读到全文；
           交互零 JS 依赖，仅用 CSS 画展开箭头与展开动画。
           位置：生态伙伴 section 与页脚 border-top 横线之间 */
        .faq-section {
            max-width: 1440px;
            margin: 0 auto;
            padding: 50px 48px 44px 48px;
            width: 100%;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .faq-header {
            text-align: center;
            margin-bottom: 32px;
        }

        .faq-header .faq-subtitle {
            font-size: clamp(13px, 1vw, 16px);
            font-weight: 300;
            color: rgba(255, 255, 255, 0.4);
            letter-spacing: 4px;
            margin-bottom: 6px;
        }

        .faq-header h2 {
            font-size: clamp(28px, 3.6vw, 44px);
            font-weight: 700;
            color: #fff;
            letter-spacing: 4px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
            margin-bottom: 6px;
        }

        .faq-header h2 .gold {
            color: #f5b642;
        }

        .faq-header .faq-desc {
            font-size: clamp(14px, 1.1vw, 18px);
            font-weight: 300;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 3px;
        }

        .faq-list {
            max-width: 1000px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.035);
            margin-bottom: 12px;
            transition: border-color 0.25s ease, background 0.25s ease;
        }

        .faq-item[open] {
            border-color: rgba(245, 182, 66, 0.42);
            background: rgba(255, 255, 255, 0.06);
        }

        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.2);
        }

        .faq-item[open]:hover {
            border-color: rgba(245, 182, 66, 0.6);
        }

        .faq-q {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px 48px 16px 20px;
            font-size: clamp(15px, 1.15vw, 17px);
            font-weight: 600;
            line-height: 1.6;
            color: #fff;
            letter-spacing: 0.4px;
            cursor: pointer;
            list-style: none;
            position: relative;
        }

        /* 去掉浏览器默认的三角标记（含 Safari 的 ::-webkit-details-marker） */
        .faq-q::-webkit-details-marker {
            display: none;
        }

        .faq-q::after {
            content: '+';
            position: absolute;
            right: 20px;
            top: 14px;
            font-size: 22px;
            font-weight: 300;
            line-height: 1;
            color: #f5b642;
            transition: transform 0.3s ease;
        }

        .faq-item[open] .faq-q::after {
            content: '−';
        }

        .faq-q .faq-num {
            flex: 0 0 auto;
            color: #f5b642;
            font-weight: 700;
            letter-spacing: 1px;
        }

        .faq-a {
            padding: 0 20px 20px 20px;
            font-size: clamp(14px, 1.05vw, 16px);
            font-weight: 300;
            line-height: 1.95;
            color: rgba(255, 255, 255, 0.8);
            letter-spacing: 0.4px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 16px;
            margin: 0 0 0 0;
            animation: faqFade 0.3s ease;
        }

        .faq-a p {
            margin-bottom: 10px;
        }

        .faq-a p:last-child {
            margin-bottom: 0;
        }

        .faq-a strong {
            color: #f5b642;
            font-weight: 600;
        }

        @keyframes faqFade {
            from {
                opacity: 0;
                transform: translateY(-4px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== 页脚 ===== */
        .footer-section {
            max-width: 1440px;
            margin: 0 auto;
            padding: 30px 48px 28px 48px;
            width: 100%;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px 30px;
        }

        .footer-center {
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
        }

        .footer-en {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            letter-spacing: 3px;
        }

        .footer-slogan {
            font-size: 14px;
            font-weight: 300;
            color: rgba(255, 255, 255, 0.6);
            letter-spacing: 2px;
        }

        /* 页脚品牌横幅图（取代原三段文本）—— 放大至接近原始宽度（原图 426px），
           与右侧二维码组（448px - 右移 20px 外占 = 428px）左右等宽，
           使中间「创展AI」按钮恰好落在页脚水平正中（整体左右对称） */
        .footer-center img {
            max-width: 430px;
            width: 100%;
            height: auto;
            display: block;
        }

        /* 页脚 ICP 备案号：国徽小图 + 号码，整行可点（跳工信部备案系统）。
           位于页脚最底部横线下方，水平居中（由 .footer-icp-bar 控制） */
        .footer-icp {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 300;
            letter-spacing: 0.5px;
            color: rgba(255, 255, 255, 0.45);
            text-decoration: none;
            transition: color 0.25s ease;
        }

        .footer-icp:hover {
            color: rgba(255, 255, 255, 0.85);
        }

        .footer-icp .icp-emblem {
            flex: 0 0 auto;
            display: block;
            /* 关键：.footer-center img 的 width:100%/height:auto 是给品牌横幅的，
               会连带命中本徽标图（CSS 优先级高于 height 属性），必须在此覆写锁死小尺寸 */
            width: auto;
            height: 16px;
            max-width: none;
            vertical-align: middle;
            filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.45));
        }

        /* 备案号栏：页脚最底部的分隔横线，备案号在横线之下正中间 */
        .footer-icp-bar {
            margin: 26px auto 0;
            max-width: 1180px;
            padding: 16px 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            justify-content: center;
        }

        /* 页脚负责人联系方式栏：位于三栏内容之下、备案栏之上。
           tel:/mailto: 链接手机端可直接拨打/发信；
           文本为静态内容，AI 爬虫可直接抓取（配合 JSON-LD 的 telephone/email 字段） */
        .footer-contact-bar {
            margin: 24px auto 0;
            max-width: 1180px;
            padding: 16px 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 14px 26px;
            flex-wrap: wrap;
        }

        .footer-contact-item {
            display: inline-flex;
            align-items: baseline;
            gap: 9px;
            font-size: 16px;
            letter-spacing: 0.6px;
            color: rgba(255, 255, 255, 0.85);
            text-decoration: none;
            transition: color 0.25s ease;
        }

        .footer-contact-item:hover {
            color: #f5b642;
        }

        .footer-contact-item .fc-label {
            font-size: 13px;
            letter-spacing: 2px;
            color: rgba(255, 255, 255, 0.42);
        }

        .footer-contact-item .fc-sep {
            color: rgba(255, 255, 255, 0.18);
            margin: 0 4px;
            user-select: none;
        }


        /* 页脚中间：创展AI工具跳转按钮（链接到 yu-spacview.com）—— 主标题 + 小字副标题两行 */
        .footer-ai-btn {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            padding: 12px 26px;
            border: 1.5px solid #f5b642;
            border-radius: 18px;
            color: #f5b642;
            text-decoration: none;
            background: rgba(245, 182, 66, 0.06);
            transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
            text-align: center;
            line-height: 1.3;
        }

        .footer-ai-btn:hover {
            background: #f5b642;
            color: #0b0e1a;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(245, 182, 66, 0.35);
        }

        .footer-ai-btn .btn-main {
            font-size: 16px;
            font-weight: 600;
            letter-spacing: 2px;
            white-space: nowrap;
        }

        .footer-ai-btn .btn-sub {
            font-size: 11px;
            font-weight: 400;
            letter-spacing: 1px;
            opacity: 0.82;
            max-width: 240px;
        }

        .footer-ai-btn:hover .btn-sub {
            opacity: 1;
        }

        .footer-ai-btn .arrow {
            font-size: 18px;
            line-height: 1;
        }

        /* 页脚本站工具入口按钮组：把 A / 创展AI / B 三个按钮纵向包裹成一组 */
        .footer-ai-group {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 14px;
            flex: 1 1 auto;
        }

        /* 本站工具入口按钮（区别于外链金色按钮，用青蓝色系呼应"本站工具"语义） */
        .footer-tool-btn {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            padding: 12px 26px;
            border: 1.5px solid #4dd0e1;
            border-radius: 18px;
            color: #4dd0e1;
            text-decoration: none;
            background: rgba(77, 208, 225, 0.06);
            transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
            text-align: center;
            line-height: 1.3;
            max-width: 100%;
        }

        .footer-tool-btn:hover {
            background: #4dd0e1;
            color: #0b0e1a;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(77, 208, 225, 0.35);
        }

        .footer-tool-btn .btn-main {
            font-size: 16px;
            font-weight: 600;
            letter-spacing: 2px;
            white-space: nowrap;
        }

        .footer-tool-btn .btn-sub {
            font-size: 11px;
            font-weight: 400;
            letter-spacing: 1px;
            opacity: 0.82;
            max-width: 260px;
        }

        .footer-tool-btn:hover .btn-sub {
            opacity: 1;
        }

        .footer-right {
            display: flex;
            flex-wrap: nowrap;
            justify-content: space-around;
            align-items: stretch;
            overflow-x: auto;
            gap: 8px;
            /* 向右借 20px 页脚内边距：二维码组整体右移一点，
               与左侧放大后的品牌图（426px）外占宽度对齐（448-20=428px），
               保证中间按钮在页脚水平居中、左右视觉对称 */
            margin-right: -20px;
        }

        .social-item {
            flex: 1 1 140px;
            max-width: 180px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            gap: 12px;
            padding: 12px 8px 16px;
            transition: transform 0.25s ease;
            cursor: default;
        }

        .social-item:hover {
            transform: translateY(-4px);
        }

        .social-label {
            order: 2;
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 17px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 0;
            user-select: none;
            white-space: nowrap;
        }

        .icon-emoji {
            font-size: 20px;
            line-height: 1;
        }

        .qrcode {
            order: 1;
            width: 90px;
            height: 90px;
            box-sizing: border-box;
            /* 白边框同时充当二维码的 quiet zone（留白边界），
               10px → 6px：边框收窄让码面内容区从 70px 增至 78px，更好扫 */
            border: 6px solid #ffffff;
            border-radius: 0;
            background: #fff;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: block;
            object-fit: contain;
            cursor: pointer;
        }

        .social-item:hover .qrcode {
            transform: scale(1.04);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.10);
        }

        /* ===== 二维码模态框 ===== */
        .qrcode-modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 2000;
            justify-content: center;
            align-items: center;
        }

        .qrcode-modal.active {
            display: flex;
        }

        .modal-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.75);
            backdrop-filter: blur(4px);
        }

        .modal-box {
            position: relative;
            background: #ffffff;
            padding: 16px;
            border-radius: 16px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            max-width: 90vw;
            max-height: 90vh;
        }

        .modal-box img {
            width: auto;
            height: auto;
            max-width: 70vmin;
            max-height: 80vmin;
            display: block;
            border-radius: 8px;
            object-fit: contain;
        }

        .modal-close {
            position: absolute;
            top: 8px;
            right: 14px;
            font-size: 28px;
            font-weight: 300;
            color: #aaa;
            cursor: pointer;
            transition: transform 0.3s, color 0.3s;
            line-height: 1;
            z-index: 2;
        }

        .modal-close:hover {
            color: #333;
            transform: rotate(90deg);
        }

        /* ===== 响应式 ===== */
        @media (max-width:1024px) {
            .hero-section {
                padding: 22px 30px 24px 30px;
            }

            .header {
                padding: 14px 30px;
            }

            .industry-chain {
                padding: 40px 30px 20px 30px;
            }

            .project-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

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

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

            .about-section {
                padding: 40px 30px 30px 30px;
            }

            .about-main {
                flex-direction: column;
                gap: 28px;
            }

            .about-video {
                flex: 0 0 auto;
                width: 100%;
                aspect-ratio: 16/9;
            }

            .service-section {
                padding: 40px 30px 30px 30px;
            }

            .service-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .partner-section {
                padding: 40px 30px 30px 30px;
            }

            .faq-section {
                padding: 40px 30px 34px 30px;
            }

            .partner-grid {
                overflow: visible;
            }

            .partner-track {
                display: grid;
                grid-template-columns: repeat(4, 1fr);
                gap: 20px 16px;
                width: 100%;
                transform: none !important;
                transition: none !important;
            }

            .partner-slide {
                flex: none;
                display: contents;
            }

            .partner-item {
                padding: 0;
                border: 1px solid rgba(255, 255, 255, 0.05);
                min-height: 70px;
            }

            .footer-section {
                padding: 24px 30px 20px 30px;
            }

            .footer-container {
                flex-direction: column;
                align-items: center;
                gap: 14px;
            }

            .footer-right {
                justify-content: center;
                /* 恢复桌面端的右移借位，避免窄屏下二维码组超出右边界 */
                margin-right: 0;
            }
        }

        @media (max-width:768px) {
            .hero-section {
                padding: 18px 20px 20px 20px;
                min-height: 100vh;
            }

            .header {
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                padding: 12px 20px;
            }

            .brand-logo {
                height: 42px;
            }

            .header-right {
                flex-wrap: wrap;
                justify-content: space-between;
                gap: 8px;
            }

            .nav {
                gap: 12px;
                font-size: 13px;
                flex-wrap: wrap;
            }

            .hero-slider {
                min-height: 150px;
            }

            .hero-slide {
                min-height: 150px;
                padding: 10px 12px;
            }

            .hero-slide h1 {
                font-size: clamp(26px, 6vw, 38px);
                letter-spacing: 2px;
                padding: 0 20px;
            }

            .hero-slide .sub {
                font-size: clamp(11px, 1.8vw, 15px);
                letter-spacing: 3px;
            }

            .about-slide {
                padding: 10px 16px;
            }

            .about-slide .about-name {
                font-size: 22px;
            }

            .about-slide .about-desc-long {
                font-size: 14px;
                line-height: 1.7;
            }

            .about-wrapper {
                flex-direction: column;
                align-items: center;
                gap: 20px;
            }

            .about-logo {
                flex: 0 0 auto;
                width: 120px;
            }

            /* 窄屏 Logo 横向居中后，"上移"会把它顶到面板最上方，
               故恢复居中，并让两张小图横排铺开 */
            .about-logo {
                align-self: center;
            }

            .about-mini-gallery {
                justify-content: center;
            }

            .btn-primary {
                padding: 12px 32px;
                font-size: 16px;
                min-width: 140px;
            }

            .industry-chain {
                padding: 30px 20px 20px 20px;
            }

            .chain-header h2 {
                font-size: 28px;
            }

            .recommend-tabs .tab {
                font-size: 13px;
                padding: 6px 16px;
            }

            .project-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .card-image {
                height: 160px;
            }

            .more-link-wrapper {
                justify-content: center;
            }

            .solution-categories {
                padding: 30px 0 20px 0;
            }

            .solution-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .solution-card {
                padding: 20px 16px 18px 16px;
                min-height: 220px;
            }

            .solution-card .card-count {
                font-size: 28px;
            }

            .solution-card .card-title {
                font-size: 18px;
            }

            .solution-card .card-desc {
                font-size: 13px;
            }

            .solution-card .card-bottom {
                flex-direction: row;
                align-items: center;
                gap: 8px;
            }

            .detail-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .detail-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .detail-title-area h2 {
                font-size: 24px;
            }

            .global-creative {
                padding: 30px 16px 24px 16px;
            }

            .global-creative h2 {
                font-size: 28px;
            }

            .tech-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .tech-item .icon {
                font-size: 32px;
            }

            .tech-item .name {
                font-size: 18px;
            }

            .tech-item .en {
                font-size: 11px;
            }

            .about-section {
                padding: 30px 20px 24px 20px;
            }

            .about-title h2 {
                font-size: 28px;
                letter-spacing: 4px;
            }

            .about-title p {
                font-size: 13px;
                letter-spacing: 2px;
            }

            .stats-grid {
                gap: 10px 16px;
            }

            .stat-card {
                min-width: 70px;
                padding: 6px 10px;
            }

            .stat-number {
                font-size: 22px;
            }

            .stat-label {
                font-size: 10px;
            }

            .about-description p {
                font-size: 14px;
                line-height: 1.8;
            }

            .service-section {
                padding: 30px 20px 24px 20px;
            }

            .service-header h2 {
                font-size: 28px;
                letter-spacing: 3px;
            }

            .service-header p {
                font-size: 14px;
            }

            .service-grid {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }

            .service-card {
                padding: 24px 16px 20px 16px;
            }

            .service-card img {
                width: 56px;
                height: 56px;
                margin-bottom: 20px;
            }

            .service-card h3 {
                font-size: 18px;
            }

            .service-card .desc {
                font-size: 13px;
            }

            .partner-section {
                padding: 30px 20px 24px 20px;
            }

            .faq-section {
                padding: 30px 20px 26px 20px;
            }

            .faq-q {
                padding: 14px 42px 14px 16px;
                font-size: 15px;
            }

            .faq-q::after {
                right: 16px;
            }

            .faq-a {
                padding: 14px 16px 16px 16px;
                font-size: 14px;
            }

            .partner-header h2 {
                font-size: 28px;
                letter-spacing: 3px;
            }

            .partner-header .partner-desc {
                font-size: 14px;
            }

            .partner-grid {
                overflow: visible;
            }

            .partner-track {
                display: grid;
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
                width: 100%;
                transform: none !important;
                transition: none !important;
            }

            .partner-slide {
                flex: none;
                display: contents;
            }

            .partner-item {
                min-height: 60px;
                padding: 14px 10px;
            }

            .partner-item img {
                height: 50px;
            }

            .footer-section {
                padding: 20px 20px 18px 20px;
            }

            .footer-container {
                flex-direction: column;
                align-items: center;
                gap: 12px;
            }

            .footer-en {
                font-size: 16px;
            }

            .footer-slogan {
                font-size: 13px;
            }

            /* 手机端备案号居中（品牌图居中后靠左会显得歪） */
            .footer-icp {
                justify-content: center;
                font-size: 11px;
            }

            .footer-right {
                gap: 12px 18px;
                justify-content: center;
            }

            .modal-box {
                padding: 12px;
            }

            .modal-box img {
                max-width: 80vmin;
                max-height: 70vmin;
            }
        }

        @media (max-width:480px) {
            .hero-section {
                padding: 14px 14px 16px 14px;
            }

            .brand-logo {
                height: 36px;
            }

            .nav {
                gap: 8px;
                font-size: 12px;
            }

            .nav .sep {
                display: none;
            }

            .hero-slider {
                min-height: 140px;
            }

            .hero-slide {
                min-height: 140px;
                padding: 8px 10px;
            }

            .hero-slide h1 {
                font-size: 22px;
                letter-spacing: 1px;
                padding: 0 12px;
            }

            .hero-slide .sub {
                font-size: 11px;
                letter-spacing: 2px;
            }

            .about-slide {
                padding: 8px 12px;
            }

            .about-slide .about-name {
                font-size: 18px;
            }

            .about-slide .about-desc-long {
                font-size: 13px;
                line-height: 1.7;
            }

            .btn-primary {
                padding: 10px 24px;
                font-size: 14px;
                min-width: 120px;
            }

            .btn-group {
                gap: 12px;
                flex-direction: column;
                width: 100%;
            }

            .btn-group .btn-primary {
                width: 100%;
            }

            .industry-chain {
                padding: 20px 14px 16px 14px;
            }

            .chain-header h2 {
                font-size: 24px;
            }

            .chain-header p {
                font-size: 12px;
                letter-spacing: 2px;
            }

            .recommend-tabs .tab {
                font-size: 12px;
                padding: 4px 12px;
            }

            .card-body h4 {
                font-size: 18px;
            }

            .solution-categories {
                padding: 20px 0 16px 0;
            }

            .solution-header h2 {
                font-size: 22px;
                letter-spacing: 3px;
            }

            .solution-header .solution-sub {
                font-size: 12px;
                letter-spacing: 3px;
            }

            .solution-header .solution-desc {
                font-size: 13px;
            }

            .solution-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .solution-card {
                padding: 18px 14px 16px 14px;
                min-height: 180px;
            }

            .solution-card .card-count {
                font-size: 24px;
            }

            .solution-card .card-title {
                font-size: 17px;
            }

            .solution-card .card-desc {
                font-size: 12px;
            }

            .solution-card .card-range {
                font-size: 12px;
            }

            .solution-card .card-btn {
                font-size: 12px;
            }

            .detail-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .detail-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .detail-title-area h2 {
                font-size: 20px;
            }

            .detail-item .item-name {
                font-size: 16px;
            }

            .detail-item .item-desc {
                font-size: 12px;
            }

            .global-creative h2 {
                font-size: 24px;
            }

            .global-creative p {
                font-size: 14px;
            }

            .tech-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .tech-item .icon {
                font-size: 36px;
            }

            .tech-item .name {
                font-size: 20px;
            }

            .about-section {
                padding: 24px 14px 20px 14px;
            }

            .about-title h2 {
                font-size: 24px;
                letter-spacing: 2px;
            }

            .about-title p {
                font-size: 12px;
                letter-spacing: 1px;
            }

            .stats-grid {
                gap: 8px 12px;
            }

            .stat-card {
                min-width: 60px;
                padding: 4px 8px;
            }

            .stat-number {
                font-size: 18px;
            }

            .stat-label {
                font-size: 9px;
            }

            .about-description p {
                font-size: 13px;
                line-height: 1.7;
            }

            .service-section {
                padding: 24px 14px 20px 14px;
            }

            .service-header h2 {
                font-size: 24px;
                letter-spacing: 2px;
            }

            .service-header p {
                font-size: 13px;
            }

            .service-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .service-card {
                padding: 20px 14px 18px 14px;
            }

            .service-card img {
                width: 50px;
                height: 50px;
                margin-bottom: 16px;
            }

            .service-card h3 {
                font-size: 17px;
            }

            .service-card .desc {
                font-size: 12px;
            }

            .partner-section {
                padding: 24px 14px 20px 14px;
            }

            .faq-section {
                padding: 24px 14px 22px 14px;
            }

            .faq-q {
                padding: 12px 38px 12px 14px;
                font-size: 14px;
            }

            .faq-q::after {
                right: 14px;
                top: 11px;
            }

            .faq-a {
                padding: 12px 14px 14px 14px;
                font-size: 13px;
                line-height: 1.8;
            }

            .partner-header h2 {
                font-size: 24px;
                letter-spacing: 2px;
            }

            .partner-header .partner-desc {
                font-size: 13px;
                letter-spacing: 2px;
            }

            .partner-grid {
                overflow: visible;
            }

            .partner-track {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
                width: 100%;
                transform: none !important;
                transition: none !important;
            }

            .partner-slide {
                flex: none;
                display: contents;
            }

            .partner-item {
                min-height: 50px;
                padding: 10px 8px;
            }

            .partner-item img {
                height: 40px;
            }

            .footer-section {
                padding: 16px 14px 14px 14px;
            }

            .footer-container {
                gap: 10px;
            }

            .footer-en {
                font-size: 14px;
            }

            .footer-slogan {
                font-size: 12px;
            }

            .footer-icp {
                font-size: 10px;
            }

            .footer-right {
                gap: 10px 14px;
            }

            .social-item {
                font-size: 11px;
                padding: 12px 8px 16px;
                flex: 1 1 100%;
                max-width: 200px;
            }

            .social-item .icon-emoji {
                font-size: 14px;
            }

            .qrcode {
                width: 80px;
                height: 80px;
            }

            .modal-box {
                padding: 10px;
            }

            .modal-box img {
                max-width: 85vmin;
                max-height: 65vmin;
            }

            .modal-close {
                top: 4px;
                right: 10px;
                font-size: 24px;
            }
        }

        /* ===== 展项详情视图（融合自 3D 展项库） ===== */
        .exhibit-detail {
            display: none;
            animation: fadeInUp 0.4s ease;
        }

        .exhibit-detail.active {
            display: block;
        }

        .exhibit-detail-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 26px;
            padding-bottom: 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .exhibit-back,
        .exhibit-nav-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.8);
            padding: 9px 18px;
            border-radius: 9px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            font-family: inherit;
            letter-spacing: 0.5px;
        }

        .exhibit-back:hover,
        .exhibit-nav-btn:hover:not(:disabled) {
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
            border-color: rgba(245, 182, 66, 0.3);
        }

        .exhibit-nav-btn:disabled {
            opacity: 0.32;
            cursor: not-allowed;
        }

        .exhibit-nav {
            display: flex;
            gap: 9px;
        }

        .exhibit-detail-main {
            display: grid;
            grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
            gap: 32px;
            align-items: start;
        }

        .exhibit-img-wrap {
            background: #0d101f;
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 16px;
            overflow: hidden;
            padding: 28px;
            position: sticky;
            top: 96px;
            aspect-ratio: 1/1;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .exhibit-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

        .exhibit-body h2 {
            font-size: clamp(22px, 2.6vw, 34px);
            font-weight: 700;
            color: #fff;
            letter-spacing: 1px;
            margin-bottom: 18px;
            line-height: 1.3;
        }

        .exhibit-tags {
            display: flex;
            gap: 9px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .exhibit-tag {
            padding: 6px 15px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.5px;
        }

        .exhibit-info {
            background: rgba(20, 24, 38, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-left: 4px solid #f5b642;
            border-radius: 13px;
            padding: 20px 24px;
            margin-bottom: 14px;
        }

        .exhibit-info h3 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            letter-spacing: 1px;
        }

        .exhibit-info h3 span {
            width: 25px;
            height: 25px;
            border-radius: 7px;
            background: #f5b642;
            color: #0b0e1a;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 800;
            flex-shrink: 0;
        }

        .exhibit-info p {
            font-size: 14.5px;
            color: rgba(255, 255, 255, 0.72);
            line-height: 1.85;
            letter-spacing: 0.3px;
        }

        .exhibit-info.budget {
            border-left-color: #0C47E0;
        }

        .exhibit-info.budget h3 span {
            background: #0C47E0;
            color: #fff;
        }

        .exhibit-info.budget p {
            color: #f5b642;
            font-weight: 600;
        }

        .exhibit-related {
            margin-top: 36px;
            padding-top: 22px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .exhibit-related h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }

        .exhibit-related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
            gap: 18px;
        }

        @media (max-width: 1024px) {
            .exhibit-detail-main {
                grid-template-columns: 1fr;
                gap: 22px;
            }

            .exhibit-img-wrap {
                position: static;
            }
        }

        @media (max-width: 768px) {
            .exhibit-detail-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .exhibit-related-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .exhibit-img-wrap {
                padding: 18px;
            }

            .exhibit-info {
                padding: 16px 18px;
            }
        }

        /* ============================================================
           手机竖屏增强适配（v2）
           —— 在原有断点之上，针对竖屏手机做紧凑化与触摸优化
           规则：纯 CSS 覆盖，不改动 HTML 结构与 JS 逻辑
           ============================================================ */

        /* —— 安全区域变量（iPhone 刘海 / 底部横条） —— */
        :root {
            --safe-top: env(safe-area-inset-top, 0px);
            --safe-bottom: env(safe-area-inset-bottom, 0px);
        }

        /* ===== 平板竖屏及以下（≤768px） ===== */
        @media (max-width: 768px) {

            /* 顶部导航：横向滚动胶囊条，节省首屏垂直空间 */
            .header {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
                gap: 10px;
                padding: 10px 16px;
                padding-top: calc(10px + var(--safe-top));
            }

            .logo-area {
                gap: 10px;
                flex-shrink: 0;
            }

            .logo-divider {
                display: none;
            }

            .brand-logo {
                height: 38px;
            }

            .header-right {
                flex: 1 1 auto;
                min-width: 0;
                justify-content: flex-end;
            }

            .nav {
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
                gap: 4px;
                font-size: 13px;
                padding-bottom: 2px;
                margin: 0 -4px;
            }

            .nav::-webkit-scrollbar {
                display: none;
            }

            .nav a {
                flex: 0 0 auto;
                padding: 9px 12px;
                border-radius: 999px;
                white-space: nowrap;
                line-height: 1;
                min-height: 36px;
                display: inline-flex;
                align-items: center;
            }

            .nav .sep {
                display: none;
            }

            /* 锚点偏移：手机 header 因工具入口独占第二行而更高（实测约 142px） */
            section[id],
            footer[id] {
                scroll-margin-top: 150px;
            }

            #heroSlider,
            #solution-categories,
            #global-creative {
                scroll-margin-top: 162px;
            }

            /* 首屏装饰层竖屏紧凑化 */
            .hero-annotation {
                width: 26vw;
                min-width: 130px;
                max-width: 180px;
                opacity: 0.6;
                bottom: 14%;
            }

            #audioState {
                bottom: 11%;
                font-size: 13px;
                width: 88%;
                max-width: 320px;
            }

            .scroll-hint {
                bottom: 3%;
                font-size: 11px;
                letter-spacing: 2px;
            }

            /* 触摸目标增大（≥40px，按钮≥48px） */
            .recommend-tabs .tab {
                padding: 9px 16px;
                min-height: 36px;
                display: inline-flex;
                align-items: center;
            }

            .read-more,
            .solution-card .card-btn,
            .detail-back,
            .exhibit-back,
            .exhibit-nav-btn {
                min-height: 40px;
            }

            .btn-primary {
                min-height: 48px;
            }

            /* 卡片图像高度收敛 */
            .card-image {
                height: 170px;
            }

            /* 展项详情图片区不要过大 */
            .exhibit-img-wrap {
                padding: 14px;
                aspect-ratio: 4 / 3;
            }

            /* 二维码触摸友好 */
            .qrcode {
                width: 84px;
                height: 84px;
            }
        }

        /* ===== 手机竖屏（≤480px） ===== */
        @media (max-width: 480px) {

            /* 用 small viewport 高度规避移动端地址栏伸缩（双行回退，兼容旧浏览器） */
            .hero-overlay {
                height: 100vh;
                height: 100svh;
            }

            .hero-section {
                min-height: 100vh;
                min-height: 100svh;
            }

            .page-wrapper {
                padding-top: 100vh;
                padding-top: 100svh;
            }

            .bg-layer {
                top: 100vh;
                top: 100svh;
                height: 100vh;
                height: 100svh;
            }

            /* 首屏注解图在小屏隐藏，避免遮挡星球与文字 */
            .hero-annotation {
                display: none;
            }

            /* 顶部更紧凑 */
            .header {
                padding: 8px 12px;
                padding-top: calc(8px + var(--safe-top));
            }

            .brand-logo {
                height: 32px;
            }

            .nav {
                font-size: 12px;
                gap: 2px;
            }

            .nav a {
                padding: 8px 10px;
            }

            /* 首屏主标题更紧凑 */
            .hero-slide {
                min-height: 130px;
                padding: 6px 8px;
            }

            .hero-slide h1 {
                font-size: 21px;
                letter-spacing: 1px;
                padding: 0 8px;
                margin-bottom: 12px;
            }

            .hero-slide .sub {
                font-size: 10px;
                letter-spacing: 1.5px;
                line-height: 1.5;
            }

            /* 关于我们 slide 文字 */
            .about-slide .about-name {
                font-size: 17px;
            }

            .about-slide .about-desc-long {
                font-size: 12.5px;
                line-height: 1.7;
            }

            /* 按钮 */
            .btn-primary {
                padding: 11px 28px;
                font-size: 14px;
                min-width: 130px;
            }

            /* 章节标题字距收敛 */
            .chain-header h2,
            .solution-header h2,
            .about-title h2,
            .service-header h2,
            .partner-header h2,
            .global-creative h2 {
                letter-spacing: 2px;
            }

            /* tab 更小但仍可触摸 */
            .recommend-tabs .tab {
                font-size: 12px;
                padding: 7px 12px;
            }

            /* 卡片正文紧凑 */
            .card-body {
                padding: 16px 16px 18px;
            }

            .card-body h4 {
                font-size: 16px;
            }

            .card-body .tech {
                font-size: 12px;
            }

            .card-image {
                height: 150px;
            }

            /* 解决方案卡片 */
            .solution-card {
                min-height: 160px;
                padding: 16px 12px 14px;
            }

            .solution-card .card-count {
                font-size: 22px;
            }

            .solution-card .card-title {
                font-size: 16px;
            }

            /* 展项相关推荐保持 2 列紧凑 */
            .exhibit-related-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            /* 数字艺术段落 */
            .global-creative p {
                font-size: 13px;
            }

            /* 公司介绍统计卡 */
            .stats-grid {
                gap: 8px 10px;
            }

            .stat-card {
                min-width: 56px;
                padding: 4px 6px;
            }

            .stat-number {
                font-size: 17px;
            }

            .stat-label {
                font-size: 9px;
            }

            /* 服务流程图标 */
            .service-card img {
                width: 46px;
                height: 46px;
                margin-bottom: 14px;
            }

            /* 伙伴 logo */
            .partner-item {
                min-height: 46px;
            }

            .partner-item img {
                height: 36px;
            }

            /* 页脚：二维码 2×2 网格，避免纵向过长 */
            .footer-section {
                padding: 18px 12px calc(14px + var(--safe-bottom));
            }

            .footer-center img {
                max-width: 260px;
            }

            .footer-ai-btn {
                padding: 10px 18px;
            }

            .footer-ai-btn .btn-main {
                font-size: 14px;
            }

            .footer-ai-btn .btn-sub {
                font-size: 10px;
            }

            .footer-right {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 14px 10px;
                width: 100%;
            }

            .social-item {
                flex: none;
                max-width: none;
                padding: 8px 4px 10px;
            }

            .social-label {
                font-size: 13px;
            }

            .qrcode {
                width: 78px;
                height: 78px;
                border-width: 6px;
            }

            /* 二维码模态框 */
            .modal-box {
                padding: 10px;
            }

            .modal-box img {
                max-width: 88vmin;
                max-height: 70vmin;
            }

            .modal-close {
                top: 2px;
                right: 8px;
                font-size: 26px;
                width: 44px;
                height: 44px;
                display: flex;
                align-items: center;
                justify-content: center;
            }
        }

        /* ===== 超小屏（≤380px） ===== */
        @media (max-width: 380px) {
            .brand-logo {
                height: 28px;
            }

            .nav a {
                padding: 7px 9px;
                font-size: 11px;
            }

            .hero-slide h1 {
                font-size: 19px;
            }

            .about-slide .about-name {
                font-size: 16px;
            }

            .about-slide .about-desc-long {
                font-size: 12px;
            }

            .footer-right {
                gap: 10px 8px;
            }

            .qrcode {
                width: 68px;
                height: 68px;
                border-width: 5px;
            }

            .social-label {
                font-size: 12px;
            }
        }

        /* ============================================================
           顶部工具入口的响应式（放在样式表末尾，确保覆盖前面的规则）
           —— 保证桌面端顶栏不换行，移动端仍可见、可点
           ============================================================ */
        @media (max-width: 2060px) {

            /* 空间不足时改用简称，避免标题栏被挤换行（完整名称保留在 title 提示里） */
            .header-tools a.nav-tool-link .label-full {
                display: none;
            }

            .header-tools a.nav-tool-link .label-short {
                display: inline;
            }
        }

        @media (max-width: 1280px) {
            .header-tools {
                gap: 12px;
            }

            .header-tools .tools-site {
                gap: 12px;
            }

            .header-tools a.nav-tool-link .tool-label {
                font-size: 12px;
                letter-spacing: 0.5px;
            }

            /* is-ai 基础规则选择器更长，必须在此同步覆盖，否则字号不会跟着降 */
            .header-tools a.nav-tool-link.is-ai {
                padding: 5px 12px;
                gap: 6px;
            }

            .header-tools a.nav-tool-link.is-ai .tool-label {
                font-size: 16px;
                letter-spacing: 1px;
            }

            .header-tools a.nav-tool-link.is-ai .tool-icon {
                font-size: 14px;
            }

            .header-tools .tools-divider {
                height: 26px;
            }
        }

        @media (max-width: 768px) {

            /* 手机：工具入口独占第二行（第一行仍是 logo + 可横滑导航，互不挤占） */
            .header-tools {
                order: 1;
                flex-basis: 100%;
                justify-content: center;
                gap: 14px;
                /* 撤销桌面端的下移/左移 */
                margin-top: 4px;
                padding-left: 0;
            }

            /* 手机下会换行（AI 一行、两个工具一行），竖线被留在行尾变成悬空竖线，
               失去分组意义——直接隐藏，换成工具组上方的一根横向金色细线来分组 */
            .header-tools .tools-divider {
                display: none;
            }

            .header-tools .tools-site {
                gap: 14px;
                justify-content: center;
                position: relative;
                padding-top: 12px;
            }

            .header-tools .tools-site::before {
                content: '';
                position: absolute;
                top: 0;
                left: 50%;
                transform: translateX(-50%);
                width: 64px;
                height: 1px;
                background: linear-gradient(90deg,
                        rgba(255, 216, 115, 0) 0%,
                        rgba(255, 216, 115, 0.7) 30%,
                        rgba(233, 168, 37, 0.7) 70%,
                        rgba(233, 168, 37, 0) 100%);
            }

            /* 恢复足够的点击热区 */
            .header-tools a.nav-tool-link {
                padding: 8px 6px;
                min-height: 36px;
            }

            /* is-ai 的桌面内边距在此改为移动端值（保持同样的小内边距节奏） */
            .header-tools a.nav-tool-link.is-ai {
                padding: 6px 14px;
            }
        }

        @media (max-width: 380px) {
            .header-tools a.nav-tool-link .tool-label {
                font-size: 11px;
            }

            .header-tools a.nav-tool-link.is-ai {
                padding: 5px 12px;
                gap: 6px;
            }

            .header-tools a.nav-tool-link.is-ai .tool-label {
                font-size: 15px;
                letter-spacing: 0.5px;
            }

            .header-tools a.nav-tool-link.is-ai .tool-icon {
                font-size: 13px;
            }
        }


/* 无障碍标准隐藏（WAI 常用 sr-only）：仅用于结构性小节标题，屏幕阅读器可读 */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}