:root {
            --ink: #242424;
            --muted: #777;
            --bg: #f2f2f2;
            --panel: #fff;
            --dark: #2f2f2f;
            --line: rgba(36, 36, 36, .1);
            --accent: #f6a61d;
            --max: 1500px;
            --gutter: var(--site-gutter, clamp(32px, 5.2vw, 132px));
            --radius: 8px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            color: var(--ink);
            background: var(--bg);
            font-family: SimHei, "Heiti SC", STHeiti, "Microsoft YaHei", Arial, sans-serif;
            line-height: 1.6;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        img {
            display: block;
            max-width: 100%;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 30;
            background: rgba(45, 45, 45, .96);
            color: #fff;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .nav-shell {
            width: calc(100% - 96px);
            height: 86px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            min-width: 154px;
        }

        .brand img {
            width: 154px;
            height: auto;
        }

        .nav-links {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: clamp(18px, 2.6vw, 52px);
        }

        .nav-links a {
            position: relative;
            color: rgba(255, 255, 255, .88);
            font-size: 14px;
            white-space: nowrap;
        }

        .nav-links a.is-active,
        .nav-links a:hover {
            color: var(--accent);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .lang-link {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: rgba(255, 255, 255, .78);
            font-size: 12px;
        }

        .lang-link::before {
            content: "";
            width: 13px;
            height: 13px;
            border: 1px solid currentColor;
            border-radius: 50%;
        }

        .pill {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 38px;
            padding: 0 20px;
            border-radius: 999px;
            background: var(--accent);
            color: #242424;
            font-size: 14px;
            font-weight: 800;
            white-space: nowrap;
        }

        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: var(--radius);
            background: transparent;
            color: #fff;
            cursor: pointer;
        }

        .menu-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            margin: 4px auto;
            background: currentColor;
        }

        main {
            overflow: hidden;
        }

        .hero {
            padding-top: 86px;
            background: #000;
            cursor: pointer;
        }

        .hero-bg {
            display: block;
            width: 100%;
            height: clamp(280px, 39vw, 760px);
            object-fit: cover;
            object-position: center top;
        }

        .hero.is-video-expanded {
            padding-top: 0;
            background: #000;
        }

        .hero.is-video-expanded .hero-bg {
            height: auto;
            object-fit: fill;
            object-position: center center;
        }

        .hero:fullscreen {
            width: 100vw;
            height: 100vh;
            padding-top: 0;
            display: grid;
            place-items: center;
            background: #000;
            overflow: hidden;
        }

        .hero:fullscreen .hero-bg {
            width: 100vw;
            height: 100vh;
            object-fit: contain;
            object-position: center center;
        }

        .section {
            position: relative;
            padding: clamp(68px, 8vw, 128px) var(--gutter);
        }

        .section-inner {
            width: 100%;
            margin: 0 auto;
        }

        .section-label {
            position: relative;
            z-index: 1;
            display: inline-block;
            margin: 0 0 clamp(34px, 4vw, 64px);
            font-size: clamp(20px, 1.7vw, 30px);
            font-weight: 900;
            line-height: 1.1;
            isolation: isolate;
        }

        .section-label::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            z-index: -1;
            width: 10px;
            height: 34px;
            background: var(--accent);
            transform: translate(-2px, -50%) skew(-14deg);
            border-radius: 2px;
        }

        .intro-grid {
            position: relative;
            min-height: 430px;
            display: block;
        }

        .intro-copy {
            position: relative;
            z-index: 2;
            width: calc(100% - min(507px, 32vw));
        }

        .intro-copy h1,
        .rd-head h2,
        .clients-copy h2 {
            margin: 0 0 28px;
            font-size: clamp(34px, 3.5vw, 64px);
            line-height: 1.16;
            font-weight: 900;
            letter-spacing: 0;
        }

        .intro-copy p,
        .clients-copy p {
            margin: 0 0 18px;
            color: var(--muted);
            font-size: clamp(15px, .95vw, 18px);
            max-width: none;
        }

        .intro-media {
            position: absolute;
            top: 50%;
            right: 0;
            z-index: 1;
            margin: 0;
            width: min(760px, 48vw);
            opacity: .52;
            transform: translateY(-50%);
        }

        .intro-media img {
            width: 100%;
            min-height: 360px;
            object-fit: contain;
            object-position: center;
        }

        .rd-section {
            background: linear-gradient(180deg, #f5b544 0%, #f6c66f 12%, #f2f2f2 34%);
        }

        .rd-head {
            position: relative;
            min-height: 168px;
            display: flex;
            flex-direction: column;
            justify-content: end;
            margin-bottom: 52px;
        }

        .rd-head::after {
            content: "100%";
            position: absolute;
            right: 0;
            bottom: -12px;
            color: rgba(246, 166, 29, .25);
            font-size: clamp(100px, 18vw, 300px);
            line-height: .8;
            font-weight: 900;
            z-index: 0;
        }

        .rd-head > * {
            position: relative;
            z-index: 1;
        }

        .rd-head p {
            margin: 0;
            color: rgba(36, 36, 36, .68);
            font-size: clamp(16px, 1vw, 19px);
            font-weight: 700;
        }

        .rd-head small {
            color: rgba(36, 36, 36, .5);
            font-size: 14px;
        }

        .capability-grid {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: clamp(34px, 5vw, 78px) clamp(46px, 8vw, 150px);
        }

        .capability {
            display: grid;
            grid-template-columns: minmax(120px, 251px) minmax(110px, 1fr);
            gap: 22px;
            align-items: center;
        }

        .capability figure {
            margin: 0;
            border-radius: 2px;
            overflow: hidden;
            box-shadow: 0 16px 34px rgba(0, 0, 0, .12);
            background: #ddd;
        }

        .capability img {
            width: 100%;
            aspect-ratio: 251 / 170;
            object-fit: cover;
        }

        .capability b {
            display: block;
            margin-bottom: 5px;
            color: var(--accent);
            font-size: 15px;
        }

        .capability h3 {
            margin: 0 0 4px;
            font-size: clamp(17px, 1.1vw, 22px);
            line-height: 1.25;
        }

        .capability p {
            margin: 0;
            color: var(--muted);
            font-size: 12px;
            line-height: 1.35;
        }

        .patent-section {
            padding: 0;
            background: #303030;
        }

        .patent-stage {
            position: relative;
        }

        .patent-stage .section-label {
            position: absolute;
            top: clamp(36px, 5vw, 80px);
            left: var(--gutter);
            z-index: 2;
            color: #fff;
        }

        .patent-stage img {
            width: 100%;
            min-height: 380px;
            object-fit: cover;
        }

        .clients-section {
            background: var(--bg);
        }

        .clients-layout {
            position: relative;
            display: block;
        }

        .clients-layout::after {
            content: "";
            position: absolute;
            top: 6px;
            right: 10%;
            width: min(360px, 38vw);
            aspect-ratio: 1;
            background: url("../aboutimgs/33.png") center / contain no-repeat;
            opacity: .12;
            pointer-events: none;
        }

        .logo-grid {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: repeat(8, minmax(88px, 1fr));
            grid-auto-rows: 76px;
            gap: 24px 28px;
            margin-top: clamp(34px, 4.5vw, 70px);
        }

        .logo-tile {
            display: grid;
            place-items: center;
            min-height: 76px;
            padding: 10px;
            background: #fff;
            border: 1px solid rgba(0, 0, 0, .05);
            box-shadow: 0 8px 18px rgba(0, 0, 0, .06);
        }

        .logo-tile img {
            width: 100%;
            height: 46px;
            object-fit: contain;
        }

        .cta-wrap {
            position: relative;
            width: 100%;
            margin: 0;
            padding: 50px var(--gutter);
            background: var(--bg);
            overflow: hidden;
        }

        .cta-wrap::before {
            display: none;
        }

        .cta-wrap .section-label {
            margin-bottom: clamp(34px, 4vw, 64px);
        }

        .cta-panel {
            position: relative;
            z-index: 1;
            width: 100%;
            margin: 0 auto;
            display: grid;
            grid-template-columns: minmax(0, 1fr) minmax(300px, .72fr);
            gap: clamp(24px, 4vw, 72px);
            align-items: center;
            min-height: clamp(260px, 27vw, 520px);
            aspect-ratio: 1774 / 572;
            padding: clamp(24px, 2.8vw, 42px);
            background: url("../aboutimgs/35.png") center / 100% 100% no-repeat;
            color: #fff;
            border-radius: var(--radius);
            overflow: hidden;
        }

        .cta-panel h2 {
            position: absolute;
            width: 1px;
            height: 1px;
            overflow: hidden;
            clip: rect(0 0 0 0);
            white-space: nowrap;
        }

        .contact-list {
            grid-column: 2;
            display: grid;
            gap: 16px;
            align-self: center;
            padding-right: 150px;
        }

        .contact-item {
            display: grid;
            grid-template-columns: 24px 1fr;
            align-items: center;
            gap: 12px;
            color: rgba(255, 255, 255, .78);
            font-size: 14px;
        }

        .contact-item img {
            width: 22px;
            height: 22px;
            object-fit: contain;
        }

        .contact-list .pill {
            position: absolute;
            top: 50%;
            right: clamp(20px, 2.8vw, 42px);
            transform: translateY(-50%);
        }

        .site-footer {
            display: block;
            background: var(--bg);
            text-align: center;
        }

        .copyright {
            display: block;
            width: min(var(--max), calc(100% - 48px));
            margin: 0 auto;
            padding: 0 0 30px;
            color: rgba(36, 36, 36, .58);
            font-size: 13px;
            line-height: 1.8;
            text-align: center;
        }

        .copyright div {
            width: 100%;
            text-align: center;
        }

        @media (max-width: 1280px) {
            .nav-shell {
                width: calc(100% - 48px);
            }

            .nav-links {
                gap: 18px;
            }

            .capability-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }

            .logo-grid {
                grid-template-columns: repeat(8, minmax(72px, 1fr));
                gap: 18px;
            }
        }

        @media (max-width: 900px) {
            .nav-shell {
                height: 66px;
                width: calc(100% - 32px);
            }

            .brand {
                min-width: 126px;
            }

            .brand img {
                width: 126px;
            }

            .nav-links {
                position: absolute;
                top: 66px;
                left: 16px;
                right: 16px;
                display: none;
                grid-template-columns: 1fr;
                justify-content: stretch;
                gap: 0;
                padding: 10px;
                background: rgba(45, 45, 45, .98);
                border: 1px solid rgba(255, 255, 255, .1);
                border-radius: var(--radius);
                box-shadow: 0 20px 50px rgba(0, 0, 0, .26);
            }

            .site-header.is-open .nav-links {
                display: grid;
            }

            .nav-links a {
                padding: 12px 10px;
            }

            .nav-actions .pill {
                display: none;
            }

            .menu-toggle {
                display: block;
            }

            .hero {
                padding-top: 66px;
                cursor: default;
            }

            .hero-bg {
                width: 100%;
                height: min(56.25vw, 360px);
                min-height: 0;
                object-fit: cover;
                object-position: center top;
            }

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

            .intro-grid {
                display: grid;
            }

            .intro-copy {
                margin-right: 0;
                width: 100%;
            }

            .intro-media {
                position: relative;
                top: auto;
                right: auto;
                justify-self: stretch;
                width: 100%;
                opacity: .42;
                margin-top: -28px;
                transform: none;
            }

            .intro-media img {
                width: 100%;
                min-height: 0;
                height: auto;
            }

            .capability-grid {
                gap: 28px;
            }

            .capability {
                grid-template-columns: 120px 1fr;
            }

            .logo-grid {
                grid-template-columns: repeat(4, minmax(72px, 1fr));
                gap: 16px;
            }
        }

        @media (max-width: 620px) {
            :root {
                --gutter: 16px;
            }

            .section {
                padding-top: 54px;
                padding-bottom: 54px;
            }

            .section-label {
                margin-bottom: 28px;
                font-size: 20px;
            }

            .intro-copy h1,
            .rd-head h2,
            .clients-copy h2 {
                font-size: 32px;
            }

            .rd-head {
                min-height: 128px;
                margin-bottom: 34px;
            }

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

            .capability {
                grid-template-columns: 118px 1fr;
                gap: 16px;
            }

            .patent-stage .section-label {
                top: 26px;
            }

            .patent-stage img {
                min-height: 0;
                aspect-ratio: 16 / 10;
                object-fit: cover;
            }

            .logo-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }

            .cta-wrap {
                padding-top: 50px;
                padding-bottom: 50px;
            }

            .cta-panel {
                min-height: 250px;
                padding: 20px;
                grid-template-columns: minmax(0, 1fr) minmax(250px, .9fr);
            }

            .contact-list {
                grid-column: 2;
            }
        }

        @media (max-width: 520px) {
            .intro-copy h1,
            .rd-head h2,
            .clients-copy h2 {
                font-size: clamp(28px, 8vw, 34px);
            }

            .intro-copy p,
            .clients-copy p,
            .contact-item {
                font-size: 14px;
                line-height: 1.75;
            }

            .capability {
                grid-template-columns: minmax(0, 1fr);
                gap: 12px;
            }

            .capability figure {
                width: 100%;
            }

            .capability img {
                width: 100%;
                height: auto;
            }

            .logo-grid {
                grid-auto-rows: 68px;
                gap: 12px;
            }

            .logo-tile {
                min-height: 68px;
                padding: 8px;
            }

            .cta-panel {
                aspect-ratio: auto;
                min-height: 360px;
                grid-template-columns: 1fr;
                align-items: end;
                background-size: cover;
                background-position: left center;
            }

            .contact-list {
                grid-column: 1;
                padding: 16px;
            }

            .contact-list .pill {
                position: static;
                transform: none;
                justify-self: start;
                margin-top: 8px;
            }

            .cta-wrap {
                padding-left: 16px;
                padding-right: 16px;
            }
        }