/* roulang page: index */
:root {
            --primary: #CBFF3A;
            --accent: #8B5CF6;
            --amber: #FFB454;
            --bg-dark: #0A0D14;
            --surface: #151B27;
            --surface-2: #1D2432;
            --text-light: #EDF1F7;
            --text-muted: #9AA8BC;
            --border-line: rgba(148, 163, 184, .16);
            --radius-sm: 14px;
            --radius-lg: 20px;
            --shadow-card: 0 22px 46px rgba(0, 0, 0, .34);
            --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", sans-serif;
            --container-w: 1280px;
            --section-pad: 112px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-light);
            background-color: var(--bg-dark);
            overflow-x: hidden;
        }
        body.modal-open {
            overflow-x: hidden;
        }
        p {
            color: var(--text-muted);
            margin-bottom: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: all .2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .site-container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .btn {
            border-radius: 10px;
            font-weight: 600;
            padding: 12px 28px;
            letter-spacing: .02em;
            transition: all .25s ease;
            font-size: 15px;
        }
        .btn-primary-site {
            background: var(--primary);
            border: 1px solid var(--primary);
            color: #0A0D14;
            box-shadow: 0 0 22px rgba(203, 255, 58, .14);
        }
        .btn-primary-site:hover,
        .btn-primary-site:focus {
            background: var(--primary);
            border-color: var(--primary);
            color: #0A0D14;
            transform: translateY(-2px);
            box-shadow: 0 0 34px rgba(203, 255, 58, .3);
        }
        .btn-outline-site {
            background: transparent;
            border: 1px solid var(--accent);
            color: #DEDAFB;
        }
        .btn-outline-site:hover,
        .btn-outline-site:focus {
            background: rgba(139, 92, 246, .12);
            border-color: var(--accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(139, 92, 246, .2);
        }
        .btn-lg {
            padding: 15px 42px;
            font-size: 16px;
            border-radius: 12px;
        }
        .btn:focus,
        .form-control:focus,
        .form-select:focus {
            box-shadow: 0 0 0 3px rgba(203, 255, 58, .16);
            border-color: rgba(203, 255, 58, .55);
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: .1em;
            text-transform: uppercase;
            padding: 6px 16px;
            border-radius: 999px;
            border: 1px solid rgba(203, 255, 58, .3);
            background: rgba(203, 255, 58, .06);
            margin-bottom: 18px;
        }
        .section-head {
            margin-bottom: 54px;
        }
        .section-head h2 {
            font-size: 36px;
            font-weight: 700;
            letter-spacing: -.02em;
            line-height: 1.3;
            margin-bottom: 16px;
            max-width: 720px;
        }
        .section-head p {
            max-width: 680px;
            font-size: 16px;
            line-height: 1.85;
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 64px;
            }
            .section-head h2 {
                font-size: 27px;
            }
            .section-head {
                margin-bottom: 36px;
            }
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(10, 13, 20, .94);
            border-bottom: 1px solid var(--border-line);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
        }
        .site-header .navbar {
            padding: 16px 0;
            min-height: 70px;
        }
        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            margin: 0;
            padding: 0;
        }
        .logo-badge {
            width: 44px;
            height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(203, 255, 58, .12);
            border: 1px solid rgba(203, 255, 58, .5);
            color: var(--primary);
            font-weight: 800;
            font-size: 19px;
            letter-spacing: -.04em;
            line-height: 1;
            box-shadow: 0 0 20px rgba(203, 255, 58, .12);
        }
        .logo-text {
            color: #fff;
            font-size: 21px;
            font-weight: 700;
            letter-spacing: .02em;
            line-height: 1.1;
        }
        .navbar-nav {
            gap: 8px;
        }
        .navbar .nav-link {
            color: rgba(237, 241, 247, .82);
            font-size: 15px;
            font-weight: 500;
            padding: 9px 18px !important;
            border-radius: 10px;
            position: relative;
            transition: all .2s ease;
        }
        .navbar .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, .05);
        }
        .navbar .nav-link.active-link {
            color: var(--primary);
            background: transparent;
        }
        .navbar .nav-link.active-link::after {
            content: "";
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            box-shadow: 0 0 12px rgba(203, 255, 58, .72);
        }
        .navbar-toggler {
            border: 1px solid rgba(148, 163, 184, .3);
            padding: 8px 12px;
            background: transparent;
            border-radius: 10px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            border-color: var(--primary);
        }
        .btn-bar {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--primary);
            margin: 5px 0;
            border-radius: 3px;
        }
        .header-cta {
            white-space: nowrap;
            padding: 11px 24px;
            font-size: 14px;
        }
        @media (max-width: 991.98px) {
            .site-header .navbar-collapse {
                background: var(--surface);
                border: 1px solid var(--border-line);
                border-radius: 16px;
                padding: 22px 18px;
                margin-top: 14px;
            }
            .navbar-nav {
                gap: 4px;
                margin-bottom: 16px;
            }
            .navbar .nav-link.active-link::after {
                display: none;
            }
            .navbar .nav-link.active-link {
                background: rgba(203, 255, 58, .08);
            }
            .header-cta {
                width: 100%;
                text-align: center;
            }
        }
        .hero-section {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 120px 0 110px;
        }
        .hero-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(10, 13, 20, .96) 0%, rgba(10, 13, 20, .82) 42%, rgba(10, 13, 20, .45) 100%);
            z-index: 1;
        }
        .hero-section .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            border: 1px solid var(--border-line);
            background: rgba(21, 27, 39, .6);
            color: var(--text-light);
            padding: 7px 20px;
            border-radius: 999px;
            font-size: 14px;
            letter-spacing: .04em;
            margin-bottom: 26px;
        }
        .hero-badge i {
            color: var(--primary);
        }
        .hero-title {
            font-size: 54px;
            line-height: 1.25;
            font-weight: 800;
            letter-spacing: -.03em;
            color: #fff;
            max-width: 640px;
            margin-bottom: 24px;
        }
        .hero-title span {
            color: var(--primary);
        }
        .hero-lead {
            font-size: 17px;
            line-height: 1.95;
            color: rgba(237, 241, 247, .74);
            max-width: 560px;
            margin-bottom: 34px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 30px;
        }
        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 26px;
            color: rgba(237, 241, 247, .68);
            font-size: 14px;
        }
        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .hero-trust i {
            color: var(--primary);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 72px 0 62px;
            }
            .hero-title {
                font-size: 34px;
            }
            .hero-lead {
                font-size: 15px;
            }
            .hero-actions .btn {
                width: 100%;
            }
        }
        .hero-console {
            background: rgba(21, 27, 39, .84);
            border: 1px solid var(--border-line);
            border-radius: 22px;
            padding: 24px 22px 20px;
            box-shadow: 0 40px 90px rgba(0, 0, 0, .42), 0 0 52px rgba(139, 92, 246, .08);
        }
        .console-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
        }
        .console-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
        }
        .console-status {
            font-size: 12px;
            color: var(--primary);
            border: 1px solid rgba(203, 255, 58, .3);
            border-radius: 999px;
            padding: 4px 12px;
            background: rgba(203, 255, 58, .06);
            letter-spacing: .05em;
        }
        .console-live-dot {
            position: relative;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 12px rgba(203, 255, 58, .7);
        }
        .console-map {
            position: relative;
            aspect-ratio: 360 / 240;
            border-radius: 16px;
            background: rgba(10, 13, 20, .62);
            border: 1px solid rgba(148, 163, 184, .13);
            margin-bottom: 18px;
            overflow: hidden;
        }
        .console-map svg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
        }
        .console-map svg line {
            stroke: rgba(203, 255, 58, .32);
            stroke-width: 1;
            stroke-dasharray: 4 5;
        }
        .map-node {
            position: absolute;
            transform: translate(-50%, -50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            z-index: 2;
        }
        .map-node .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 14px rgba(203, 255, 58, .8);
            border: 2px solid rgba(10, 13, 20, .8);
        }
        .map-node em {
            font-style: normal;
            font-size: 11px;
            color: rgba(237, 241, 247, .75);
            margin-top: 4px;
            white-space: nowrap;
            background: rgba(10, 13, 20, .6);
            padding: 2px 7px;
            border-radius: 6px;
        }
        .map-center-node {
            position: absolute;
            transform: translate(-50%, -50%);
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--surface);
            border: 1px solid rgba(203, 255, 58, .55);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 800;
            font-size: 14px;
            letter-spacing: -.02em;
            box-shadow: 0 0 30px rgba(203, 255, 58, .15);
            z-index: 3;
        }
        .map-center-node small {
            font-size: 9px;
            font-weight: 500;
            color: rgba(237, 241, 247, .7);
            letter-spacing: .06em;
        }
        .console-nodes {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .console-node-item {
            flex: 1 1 46%;
            display: flex;
            align-items: center;
            gap: 9px;
            background: rgba(29, 36, 50, .72);
            border: 1px solid rgba(148, 163, 184, .12);
            border-radius: 11px;
            padding: 9px 13px;
            font-size: 13px;
            color: rgba(237, 241, 247, .72);
        }
        .console-node-item i {
            font-size: 9px;
            color: var(--primary);
        }
        .console-node-item b {
            color: var(--text-light);
            font-weight: 500;
            margin-left: auto;
        }
        @media (max-width: 991.98px) {
            .hero-console {
                margin-top: 30px;
            }
        }
        .services-section {
            background: var(--bg-dark);
            padding: var(--section-pad) 0 0;
        }
        .bento-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            grid-template-rows: repeat(2, 248px);
            gap: 24px;
        }
        .bento-card {
            position: relative;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-line);
            background: var(--surface);
            padding: 34px;
            overflow: hidden;
            transition: border-color .3s ease, box-shadow .3s ease, transform .3s ease;
        }
        .bento-card:hover {
            border-color: rgba(203, 255, 58, .5);
            box-shadow: 0 20px 55px rgba(0, 0, 0, .3), 0 0 34px rgba(203, 255, 58, .06);
            transform: translateY(-3px);
        }
        .bento-large {
            grid-column: span 6;
            grid-row: span 2;
            display: flex;
            align-items: stretch;
            padding: 0;
        }
        .bento-large .bento-copy {
            padding: 38px 32px 34px 38px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            z-index: 2;
        }
        .bento-large .bento-photo {
            width: 42%;
            min-height: 100%;
            position: relative;
            overflow: hidden;
        }
        .bento-large .bento-photo img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .bento-large .bento-photo::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, var(--surface) 0%, transparent 100%);
        }
        .bento-small-top {
            grid-column: span 3;
            grid-row: 1;
        }
        .bento-small-bottom {
            grid-column: span 3;
            grid-row: 2;
        }
        .bento-tall {
            grid-column: span 3;
            grid-row: span 2;
        }
        .bento-icon {
            width: 48px;
            height: 48px;
            border-radius: 13px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            background: rgba(203, 255, 58, .08);
            border: 1px solid rgba(203, 255, 58, .22);
            margin-bottom: 18px;
        }
        .bento-card h3 {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 12px;
            color: #fff;
        }
        .bento-card p {
            font-size: 14px;
            line-height: 1.9;
            margin-bottom: 18px;
        }
        .bento-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-top: auto;
        }
        .bento-link:hover {
            gap: 13px;
            color: var(--primary);
        }
        .bento-tall-card-list {
            list-style: none;
            padding: 0;
            margin: 12px 0 16px;
        }
        .bento-tall-card-list li {
            display: flex;
            gap: 10px;
            padding: 7px 0;
            font-size: 14px;
            color: rgba(237, 241, 247, .88);
        }
        .bento-tall-card-list li i {
            color: var(--primary);
            font-size: 14px;
            margin-top: 6px;
        }
        .bento-icon.purple {
            color: var(--accent);
            background: rgba(139, 92, 246, .1);
            border-color: rgba(139, 92, 246, .26);
        }
        @media (max-width: 991.98px) {
            .bento-grid {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: auto;
            }
            .bento-large {
                grid-column: span 2;
                grid-row: auto;
                flex-direction: column;
            }
            .bento-large .bento-photo {
                width: 100%;
                height: 220px;
            }
            .bento-small-top {
                grid-column: 1;
                grid-row: auto;
            }
            .bento-small-bottom {
                grid-column: 2;
                grid-row: auto;
            }
            .bento-tall {
                grid-column: span 2;
                grid-row: auto;
            }
        }
        @media (max-width: 575px) {
            .bento-grid {
                grid-template-columns: 1fr;
            }
            .bento-large,
            .bento-tall {
                grid-column: span 1;
            }
            .bento-card {
                padding: 24px;
            }
        }
        .stats-strip {
            background: transparent;
            padding: 76px 0;
            display: flex;
            align-items: center;
        }
        .stats-strip .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            background: var(--surface);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-lg);
            padding: 38px 32px;
            gap: 20px;
        }
        .stat-item {
            text-align: center;
            padding: 8px 12px;
        }
        .stat-num {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -.03em;
            line-height: 1.2;
            text-shadow: 0 0 28px rgba(203, 255, 58, .25);
        }
        .stat-line {
            width: 32px;
            height: 2px;
            background: rgba(203, 255, 58, .45);
            margin: 12px auto;
            border-radius: 2px;
        }
        .stat-item p {
            font-size: 13px;
            color: rgba(237, 241, 247, .66);
            letter-spacing: .04em;
        }
        @media (max-width: 768px) {
            .stats-strip .stats-grid {
                grid-template-columns: 1fr 1fr;
                padding: 24px 16px;
                gap: 12px;
            }
            .stat-num {
                font-size: 32px;
            }
        }
        .cases-section {
            padding: 0 0 var(--section-pad);
        }
        .case-focus-wrap {
            display: flex;
            flex-direction: column;
            gap: 26px;
        }
        .case-focus-card {
            border-radius: 22px;
            border: 1px solid var(--border-line);
            background: var(--surface);
            overflow: hidden;
            height: 100%;
            transition: all .3s ease;
        }
        .case-focus-card:hover {
            border-color: rgba(203, 255, 58, .4);
            box-shadow: 0 24px 55px rgba(0, 0, 0, .32);
        }
        .case-focus-card .case-img-wrap {
            aspect-ratio: 16/9;
            background: var(--surface-2);
            overflow: hidden;
            position: relative;
        }
        .case-focus-card .case-img-wrap::after {
            content: "PG国际网";
            position: absolute;
            inset: 0;
            display: grid;
            place-items: center;
            color: rgba(237, 241, 247, .22);
            font-size: 24px;
            font-weight: 700;
            letter-spacing: .1em;
        }
        .case-focus-card .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: relative;
            z-index: 1;
        }
        .case-focus-body {
            padding: 28px 30px 30px;
        }
        .case-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 14px;
        }
        .case-tags span {
            display: inline-block;
            border-radius: 999px;
            background: rgba(203, 255, 58, .08);
            border: 1px solid rgba(203, 255, 58, .24);
            color: var(--primary);
            font-size: 12px;
            padding: 4px 14px;
        }
        .case-focus-body h3 {
            font-size: 23px;
            color: #fff;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.45;
        }
        .case-focus-body p {
            font-size: 14px;
            line-height: 1.9;
            margin-bottom: 20px;
        }
        .case-link {
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 9px;
        }
        .case-link:hover {
            gap: 14px;
        }
        .mini-cases {
            display: flex;
            flex-direction: column;
            gap: 20px;
            height: 100%;
        }
        .mini-case-card {
            display: flex;
            flex: 1;
            background: var(--surface);
            border: 1px solid var(--border-line);
            border-radius: 18px;
            overflow: hidden;
            transition: all .3s ease;
        }
        .mini-case-card:hover {
            border-color: rgba(203, 255, 58, .4);
            transform: translateY(-3px);
        }
        .mini-case-card .mini-img {
            width: 38%;
            aspect-ratio: 4/3;
            align-self: stretch;
            background: var(--surface-2);
            overflow: hidden;
            position: relative;
            flex-shrink: 0;
        }
        .mini-case-card .mini-img::after {
            content: "PG国际网";
            position: absolute;
            inset: 0;
            display: grid;
            place-items: center;
            color: rgba(237, 241, 247, .18);
            font-size: 12px;
            font-weight: 700;
        }
        .mini-case-card .mini-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: relative;
            z-index: 1;
        }
        .mini-body {
            padding: 22px 22px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .mini-body h4 {
            font-size: 17px;
            line-height: 1.45;
            color: #fff;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .mini-body p {
            font-size: 13px;
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .mini-body .case-link {
            font-size: 13px;
        }
        @media (max-width: 991.98px) {
            .mini-cases {
                margin-top: 0;
                min-height: 400px;
            }
        }
        @media (max-width: 575px) {
            .mini-case-card {
                flex-direction: column;
            }
            .mini-case-card .mini-img {
                width: 100%;
            }
        }
        .solution-section {
            background: #0C101A;
            padding: var(--section-pad) 0;
        }
        .timeline-wrap {
            position: relative;
        }
        .timeline-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .timeline-list li {
            position: relative;
            padding: 0 0 42px 70px;
        }
        .timeline-list li:last-child {
            padding-bottom: 0;
        }
        .timeline-list li::before {
            content: "";
            position: absolute;
            left: 22px;
            top: 4px;
            bottom: -4px;
            width: 1px;
            background: linear-gradient(180deg, rgba(203, 255, 58, .55), rgba(139, 92, 246, .2));
        }
        .timeline-list li:last-child::before {
            display: none;
        }
        .timeline-num {
            position: absolute;
            left: 0;
            top: 0;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--surface);
            border: 1px solid rgba(203, 255, 58, .35);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 15px;
            font-weight: 800;
            letter-spacing: -.02em;
            z-index: 1;
        }
        .timeline-list h3 {
            font-size: 18px;
            color: #fff;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .timeline-list p {
            font-size: 14px;
            line-height: 1.85;
        }
        .solution-visual {
            position: relative;
            border-radius: 22px;
            overflow: hidden;
            border: 1px solid var(--border-line);
            background: var(--surface);
            padding: 16px;
            height: 100%;
            display: flex;
            align-items: center;
        }
        .solution-visual .visual-photo {
            width: 100%;
            border-radius: 16px;
            aspect-ratio: 4/3;
            overflow: hidden;
            background: var(--surface-2);
            position: relative;
        }
        .solution-visual .visual-photo::after {
            content: "PG国际网 · 方案示意";
            position: absolute;
            inset: 0;
            display: grid;
            place-items: center;
            color: rgba(237, 241, 247, .2);
            font-size: 16px;
            font-weight: 700;
            letter-spacing: .08em;
        }
        .solution-visual .visual-photo img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: relative;
            z-index: 1;
        }
        @media (max-width: 991.98px) {
            .solution-visual {
                margin-top: 48px;
            }
        }
        .news-section {
            background: var(--bg-dark);
            padding: var(--section-pad) 0 0;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .news-card {
            display: flex;
            align-items: stretch;
            background: var(--surface);
            border: 1px solid var(--border-line);
            border-radius: 18px;
            overflow: hidden;
            transition: all .3s ease;
        }
        .news-card:hover {
            border-color: rgba(203, 255, 58, .45);
            transform: translateY(-2px);
        }
        .news-thumb {
            width: 270px;
            flex-shrink: 0;
            min-height: 180px;
            background: var(--surface-2);
            overflow: hidden;
            position: relative;
        }
        .news-thumb::after {
            content: "PG国际网";
            position: absolute;
            inset: 0;
            display: grid;
            place-items: center;
            color: rgba(237, 241, 247, .25);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: .08em;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: relative;
            z-index: 1;
        }
        .news-body {
            padding: 25px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            flex: 1;
        }
        .news-body h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 9px;
        }
        .news-body h3 a {
            color: #fff;
        }
        .news-body h3 a:hover {
            color: var(--primary);
        }
        .news-body p {
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 13px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 12px;
            font-size: 13px;
        }
        .news-tag {
            background: rgba(139, 92, 246, .12);
            border: 1px solid rgba(139, 92, 246, .28);
            color: #C7B8F7;
            padding: 3px 13px;
            border-radius: 999px;
            font-size: 12px;
        }
        .news-date {
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .news-more {
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .news-more:hover {
            gap: 13px;
        }
        .news-empty {
            background: var(--surface);
            border: 1px dashed rgba(148, 163, 184, .28);
            border-radius: 22px;
            padding: 90px 24px;
            text-align: center;
        }
        .news-empty i {
            font-size: 46px;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .news-empty p {
            font-size: 16px;
            color: rgba(237, 241, 247, .66);
        }
        @media (max-width: 767px) {
            .news-card {
                flex-direction: column;
            }
            .news-thumb {
                width: 100%;
                aspect-ratio: 16/9;
                min-height: auto;
            }
        }
        .faq-section {
            background: var(--bg-dark);
            padding: var(--section-pad) 0;
        }
        .faq-intro {
            padding-right: 24px;
        }
        .faq-intro h2 {
            font-size: 34px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .faq-intro p {
            font-size: 15px;
            line-height: 1.9;
            margin-bottom: 26px;
        }
        .faq-intro .btn {
            margin-top: 8px;
        }
        .faq-accordion .accordion-item {
            background: transparent;
            border: 1px solid var(--border-line);
            border-radius: 16px !important;
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color .25s ease;
        }
        .faq-accordion .accordion-item:hover {
            border-color: rgba(203, 255, 58, .3);
        }
        .faq-accordion .accordion-button {
            background: var(--surface);
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            padding: 22px 26px;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: var(--surface);
            box-shadow: inset 0 -1px 0 rgba(203, 255, 58, .16);
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(203, 255, 58, .1);
            border-radius: 0;
        }
        .faq-accordion .accordion-button::after {
            background-image: none;
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 14px;
            color: var(--primary);
            width: auto;
            height: auto;
            transition: transform .3s ease;
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }
        .faq-accordion .accordion-body {
            background: var(--surface);
            color: var(--text-muted);
            line-height: 1.95;
            font-size: 15px;
            padding: 6px 28px 26px;
            border-left: 2px solid rgba(203, 255, 58, .6);
            margin: 0 22px 18px;
            border-radius: 0 0 12px 12px;
        }
        @media (max-width: 991.98px) {
            .faq-intro {
                margin-bottom: 38px;
            }
        }
        .contact-section {
            position: relative;
            background-color: #0C101A;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            padding: var(--section-pad) 0;
        }
        .contact-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(10, 13, 20, .88);
        }
        .contact-section .container {
            position: relative;
            z-index: 1;
        }
        .contact-wrap {
            background: var(--surface);
            border: 1px solid var(--border-line);
            border-radius: 26px;
            overflow: hidden;
            box-shadow: 0 30px 80px rgba(0, 0, 0, .4);
        }
        .contact-info-side {
            padding: 50px 44px;
            height: 100%;
            background: var(--surface-2);
            border-right: 1px solid var(--border-line);
        }
        .contact-info-side h2 {
            color: #fff;
            font-size: 30px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 14px;
        }
        .contact-info-side p {
            font-size: 15px;
            line-height: 1.95;
            margin-bottom: 30px;
        }
        .contact-list {
            list-style: none;
            margin: 0 0 34px;
            padding: 0;
        }
        .contact-list li {
            display: flex;
            align-items: center;
            gap: 15px;
            padding: 11px 0;
            font-size: 14px;
            color: rgba(237, 241, 247, .8);
        }
        .contact-list li i {
            width: 40px;
            height: 40px;
            border-radius: 11px;
            background: rgba(203, 255, 58, .08);
            border: 1px solid rgba(203, 255, 58, .2);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .contact-note {
            border: 1px solid rgba(139, 92, 246, .22);
            border-radius: 14px;
            background: rgba(139, 92, 246, .07);
            padding: 15px 18px;
            font-size: 13px;
            color: rgba(237, 241, 247, .76);
        }
        .contact-form-side {
            padding: 50px 48px;
        }
        .contact-form-side h3 {
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .contact-form-side>p {
            font-size: 14px;
            margin-bottom: 30px;
        }
        .form-label {
            font-size: 14px;
            font-weight: 600;
            color: rgba(237, 241, 247, .86);
            margin-bottom: 8px;
        }
        .form-control,
        .form-select {
            background: var(--bg-dark);
            border: 1px solid rgba(148, 163, 184, .24);
            border-radius: 10px;
            color: var(--text-light);
            padding: 12px 18px;
            min-height: 44px;
            font-size: 15px;
            transition: border-color .2s, box-shadow .2s, background .2s;
        }
        .form-control::placeholder {
            color: rgba(154, 168, 188, .55);
        }
        .form-control:focus,
        .form-select:focus {
            background: var(--bg-dark);
            border-color: rgba(203, 255, 58, .6);
            box-shadow: 0 0 0 3px rgba(203, 255, 58, .13);
            color: var(--text-light);
        }
        .form-select {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%239AA8BC' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
        }
        .form-status {
            margin-top: 16px;
            font-size: 14px;
            line-height: 1.7;
            border-radius: 10px;
            padding: 10px 16px;
            display: none;
        }
        .form-status.success {
            background: rgba(203, 255, 58, .08);
            border: 1px solid rgba(203, 255, 58, .3);
            color: var(--primary);
            display: block;
        }
        @media (max-width: 991.98px) {
            .contact-info-side {
                border-right: 0;
                border-bottom: 1px solid var(--border-line);
            }
            .contact-form-side {
                padding: 34px 24px;
            }
        }
        @media (max-width: 575px) {
            .contact-info-side {
                padding: 30px 22px;
            }
            .contact-form-side {
                padding: 26px 18px;
            }
        }
        .site-footer {
            background: #07090F;
            border-top: 1px solid rgba(148, 163, 184, .1);
            padding: 76px 0 30px;
        }
        .footer-brand .site-logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
        }
        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            padding: 8px 0;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 14px;
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, .1);
            margin-top: 58px;
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: rgba(154, 168, 188, .7);
            font-size: 13px;
        }
        @media (max-width: 767px) {
            .footer-bottom {
                flex-direction: column;
            }
        }
        .section-muted-label {
            color: var(--text-muted);
            font-size: 14px;
            letter-spacing: .06em;
            margin-top: -12px;
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: .01ms !important;
                transition-duration: .01ms !important;
            }
        }

/* roulang page: article */
:root {
            --primary: #CBFF3A;
            --primary-dim: rgba(203, 255, 58, 0.12);
            --primary-glow: rgba(203, 255, 58, 0.45);
            --accent: #8B5CF6;
            --accent-soft: rgba(139, 92, 246, 0.15);
            --warning: #FFB454;
            --bg-main: #0A0D14;
            --bg-deep: #070A10;
            --bg-card: #151B27;
            --bg-sub: #1D2432;
            --text-main: #EDF1F7;
            --text-sub: #9AA8BC;
            --border-line: rgba(148, 163, 184, 0.16);
            --radius-sm: 10px;
            --radius-card: 14px;
            --radius-lg: 20px;
            --shadow-deep: 0 18px 38px rgba(0, 0, 0, 0.35);
            --space-section: 96px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-main);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, opacity 0.2s ease;
        }

        ul,
        ol {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container.site-container {
            max-width: 1280px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(7, 10, 16, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(148, 163, 184, 0.12);
            padding: 0;
        }

        .site-header .navbar {
            padding: 14px 0;
        }

        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
        }

        .site-logo .logo-badge {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #0A0D14;
            font-weight: 800;
            font-size: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.5px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .site-logo .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .site-header .nav-item {
            margin: 0 6px;
        }

        .site-header .nav-link {
            color: #B9C4D4;
            font-size: 15px;
            font-weight: 500;
            padding: 10px 14px !important;
            border-radius: 8px;
            position: relative;
            transition: color 0.25s ease, background 0.25s ease;
        }

        .site-header .nav-link:hover {
            color: #ffffff;
        }

        .site-header .nav-link.active-link {
            color: var(--primary);
        }

        .site-header .nav-link.active-link::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            box-shadow: 0 0 10px rgba(203, 255, 58, 0.4), 0 0 24px rgba(203, 255, 58, 0.12);
        }

        .btn-primary-site {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #0A0D14;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 22px;
            border: 1px solid transparent;
            border-radius: var(--radius-sm);
            line-height: 1.4;
            transition: all 0.25s ease;
            box-shadow: 0 0 0 rgba(203, 255, 58, 0);
        }

        .btn-primary-site:hover {
            color: #0A0D14;
            transform: translateY(-2px);
            border-color: rgba(203, 255, 58, 0.8);
            box-shadow: 0 6px 32px rgba(203, 255, 58, 0.25);
        }

        .btn-primary-site:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

        .btn-secondary-site {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--text-main);
            font-weight: 500;
            font-size: 15px;
            padding: 10px 22px;
            border: 1px solid rgba(139, 92, 246, 0.7);
            border-radius: var(--radius-sm);
            transition: all 0.25s ease;
        }

        .btn-secondary-site:hover {
            background: rgba(139, 92, 246, 0.1);
            border-color: var(--accent);
        }

        .btn-secondary-site:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .header-cta {
            margin-left: 8px;
        }

        .navbar-toggler {
            border: 1px solid rgba(148, 163, 184, 0.3);
            border-radius: 8px;
            padding: 8px 12px;
            background: transparent;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            border-color: var(--primary);
        }

        .navbar-toggler .btn-bar {
            display: block;
            width: 22px;
            height: 2px;
            margin: 4px auto;
            background: #D3DDE8;
            border-radius: 2px;
            transition: background 0.2s ease;
        }

        .navbar-toggler:hover .btn-bar {
            background: var(--primary);
        }

        .page-topbar {
            background: linear-gradient(rgba(7, 10, 16, 0.9), rgba(10, 13, 20, 0.8)), url('/assets/images/backpic/back-2.webp') no-repeat center center / cover;
            padding: 74px 0 40px;
            border-bottom: 1px solid rgba(148, 163, 184, 0.12);
        }

        .breadcrumb-area {
            font-size: 13px;
            color: var(--text-sub);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .breadcrumb-area a {
            color: rgba(203, 255, 58, 0.85);
        }

        .breadcrumb-area a:hover {
            color: var(--primary);
        }

        .breadcrumb-divider {
            opacity: 0.5;
            margin: 0 2px;
        }

        .breadcrumb-current {
            color: var(--text-sub);
            max-width: 260px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .page-title {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin: 0 0 18px;
            color: #fff;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: var(--text-sub);
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .meta-item i {
            color: var(--primary);
            opacity: 0.7;
            font-size: 13px;
        }

        .meta-chip {
            background: rgba(203, 255, 58, 0.15);
            color: var(--primary);
            border-radius: 999px;
            font-size: 12px;
            padding: 4px 12px;
            display: inline-block;
            font-weight: 500;
        }

        .article-main {
            padding: 64px 0 80px;
            background: var(--bg-main);
        }

        .article-layout {
            display: flex;
            gap: 48px;
        }

        .article-body-card {
            background: var(--bg-card);
            border: 1px solid rgba(148, 163, 184, 0.14);
            border-radius: var(--radius-lg);
            padding: 44px 48px;
            flex: 1;
            max-width: 840px;
        }

        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: #E6EBF3;
            word-break: break-word;
        }

        .article-content h1,
        .article-content h2,
        .article-content h3,
        .article-content h4 {
            color: #fff;
            font-weight: 700;
            margin: 1.6em 0 0.6em;
            line-height: 1.4;
        }

        .article-content h2 {
            font-size: 26px;
            padding-left: 16px;
            border-left: 3px solid var(--primary);
            border-radius: 0 4px 4px 0;
        }

        .article-content h3 {
            font-size: 22px;
            color: rgba(237, 241, 247, 0.95);
        }

        .article-content p {
            margin-bottom: 1.1em;
        }

        .article-content a {
            color: rgba(203, 255, 58, 0.8);
            border-bottom: 1px solid rgba(203, 255, 58, 0.25);
        }

        .article-content a:hover {
            color: var(--primary);
            border-color: var(--primary);
        }

        .article-content img {
            border-radius: var(--radius-card);
            margin: 24px auto;
            border: 1px solid rgba(148, 163, 184, 0.15);
        }

        .article-content figure {
            margin: 28px 0;
        }

        .article-content figure img {
            margin-bottom: 10px;
        }

        .article-content figcaption {
            text-align: center;
            color: var(--text-sub);
            font-size: 13px;
            margin-top: 6px;
        }

        .article-content blockquote {
            background: linear-gradient(135deg, rgba(203, 255, 58, 0.08), rgba(139, 92, 246, 0.08));
            border-left: 3px solid var(--accent);
            border-radius: 0 10px 10px 0;
            padding: 18px 22px;
            margin: 24px 0;
            color: #D6DEEA;
            font-style: normal;
        }

        .article-content blockquote p {
            margin-bottom: 0;
        }

        .article-content ul,
        .article-content ol {
            margin: 16px 0 20px;
            padding-left: 22px;
        }

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

        .article-content li {
            margin-bottom: 6px;
        }

        .article-content table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            margin: 24px 0;
            border-radius: 10px;
            overflow: hidden;
            font-size: 14px;
        }

        .article-content table th,
        .article-content table td {
            border: 1px solid rgba(148, 163, 184, 0.12);
            padding: 12px 16px;
            text-align: left;
        }

        .article-content table th {
            background: var(--bg-sub);
            color: #fff;
            font-weight: 600;
        }

        .article-content table tr:nth-child(even) td {
            background: rgba(148, 163, 184, 0.04);
        }

        .article-bottom-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid rgba(148, 163, 184, 0.14);
            flex-wrap: wrap;
        }

        .article-back-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: rgba(203, 255, 58, 0.8);
            font-size: 14px;
            font-weight: 500;
        }

        .article-back-btn:hover {
            color: var(--primary);
        }

        .article-related {
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid rgba(148, 163, 184, 0.14);
        }

        .article-related-title {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
        }

        .related-card {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-sub);
            border: 1px solid rgba(148, 163, 184, 0.1);
            border-radius: 12px;
            padding: 12px 16px;
            margin-bottom: 12px;
            transition: all 0.25s ease;
        }

        .related-card:hover {
            border-color: rgba(203, 255, 58, 0.35);
            background: rgba(29, 36, 50, 0.8);
        }

        .related-thumb {
            width: 88px;
            height: 60px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
            background: linear-gradient(135deg, var(--bg-sub), #10141d);
        }

        .related-info {
            min-width: 0;
        }

        .related-info .related-label {
            font-size: 12px;
            color: var(--primary);
            opacity: 0.75;
            margin-bottom: 4px;
        }

        .related-info h5 {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            transition: color 0.2s;
        }

        .related-card:hover .related-info h5 {
            color: #fff;
        }

        .article-empty-state {
            text-align: center;
            padding: 60px 24px;
        }

        .empty-icon-circle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: rgba(203, 255, 58, 0.1);
            color: var(--primary);
            font-size: 32px;
            margin-bottom: 20px;
        }

        .section {
            padding: var(--space-section) 0;
        }

        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid rgba(148, 163, 184, 0.08);
            padding: 56px 0 30px;
        }

        .footer-brand .site-logo .logo-text {
            font-size: 20px;
        }

        .footer-brand p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.75;
            max-width: 340px;
        }

        .site-footer .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .site-footer .footer-links li {
            margin-bottom: 10px;
        }

        .site-footer .footer-links a {
            color: var(--text-sub);
            font-size: 14px;
        }

        .site-footer .footer-links a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            border-top: 1px solid rgba(148, 163, 184, 0.1);
            margin-top: 40px;
            padding-top: 22px;
            color: #6C7A90;
            font-size: 13px;
        }

        .cta-section {
            background: linear-gradient(135deg, rgba(203, 255, 58, 0.06), rgba(139, 92, 246, 0.08)),
                url('/assets/images/backpic/back-1.webp') no-repeat center center / cover;
            border-block: 1px solid rgba(148, 163, 184, 0.14);
            position: relative;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(7, 10, 16, 0.82);
            z-index: 0;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
            padding: 10px 0;
        }

        .cta-content h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            line-height: 1.4;
            margin-bottom: 14px;
        }

        .cta-content p {
            color: var(--text-sub);
            font-size: 16px;
            margin-bottom: 26px;
        }

        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 991.98px) {
            .site-header .navbar-collapse {
                background: rgba(7, 10, 16, 0.97);
                border-radius: 14px;
                margin-top: 14px;
                padding: 14px 16px;
                border: 1px solid rgba(148, 163, 184, 0.12);
            }

            .site-header .navbar-nav {
                margin: 0 0 12px 0;
            }

            .site-header .nav-item {
                margin: 0;
            }

            .site-header .nav-link {
                padding: 12px 10px !important;
                border-radius: 8px;
                display: block;
            }

            .site-header .nav-link.active-link::after {
                left: 10px;
                right: auto;
                width: 28px;
            }

            .header-cta {
                margin-left: 0;
                width: 100%;
                display: block;
                text-align: center;
                padding: 11px 20px;
            }

            .page-topbar {
                padding: 52px 0 32px;
            }

            .page-title {
                font-size: 30px;
            }

            .article-main {
                padding: 48px 0 64px;
            }

            .article-body-card {
                padding: 28px 24px;
            }

            .site-footer {
                padding: 44px 0 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --space-section: 64px;
            }

            .page-topbar {
                padding: 36px 0 28px;
            }

            .page-title {
                font-size: 26px;
            }

            .article-meta {
                gap: 10px;
                font-size: 13px;
            }

            .article-body-card {
                padding: 24px 20px;
                border-radius: 14px;
            }

            .article-content img {
                border-radius: 10px;
            }

            .article-content h2 {
                font-size: 22px;
            }

            .article-content h3 {
                font-size: 19px;
            }

            .article-bottom-nav {
                flex-direction: column;
                align-items: flex-start;
            }

            .related-card {
                flex-direction: row;
                align-items: center;
            }

            .related-thumb {
                width: 70px;
                height: 52px;
            }

            .cta-content h2 {
                font-size: 24px;
            }

            .cta-btns {
                flex-direction: column;
                align-items: stretch;
            }

            .cta-btns .btn-primary-site,
            .cta-btns .btn-secondary-site {
                width: 100%;
            }
        }

        @media (max-width: 575.98px) {
            .site-logo .logo-text {
                font-size: 18px;
            }

            .site-logo .logo-badge {
                width: 36px;
                height: 36px;
                font-size: 13px;
            }

            .article-body-card {
                padding: 20px 16px;
            }

            .breadcrumb-area {
                font-size: 12px;
            }

            .article-meta .meta-item {
                display: none;
            }

            .article-meta .meta-item:first-child,
            .article-meta .meta-item:last-child {
                display: inline-flex;
            }
        }

/* roulang page: category2 */
:root {
            --bg: #0A0D14;
            --surface: #151B27;
            --surface-2: #1D2432;
            --lime: #CBFF3A;
            --violet: #8B5CF6;
            --amber: #FFB454;
            --text-main: #EDF1F7;
            --text-muted: #9AA8BC;
            --line: rgba(148, 163, 184, .16);
            --radius-sm: 14px;
            --radius-lg: 20px;
            --radius-btn: 10px;
            --shadow-card: 0 18px 42px rgba(0, 0, 0, .36);
            --shadow-lime: 0 10px 28px rgba(203, 255, 58, .18);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1280px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.8;
            background: var(--bg);
            color: var(--text-main);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--lime);
            outline-offset: 3px;
        }

        .site-container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }

        .section {
            padding-top: 96px;
            padding-bottom: 96px;
        }

        .section-head {
            margin-bottom: 48px;
        }

        .section-head .eyebrow {
            display: inline-block;
            color: var(--lime);
            font-size: 14px;
            letter-spacing: .12em;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .section-head h2 {
            font-size: clamp(30px, 4vw, 38px);
            line-height: 1.3;
            font-weight: 800;
            letter-spacing: -.02em;
            margin: 0 0 14px;
        }

        .section-head p {
            color: var(--text-muted);
            margin-bottom: 0;
            max-width: 680px;
        }

        .section-head-center {
            text-align: center;
        }

        .section-head-center p {
            margin-left: auto;
            margin-right: auto;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1080;
            background: rgba(10, 13, 20, .88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--line);
        }

        .site-header .navbar {
            padding-top: 14px;
            padding-bottom: 14px;
        }

        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin: 0;
        }

        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--lime);
            color: #0A0D14;
            font-weight: 900;
            font-size: 18px;
            letter-spacing: -.04em;
            box-shadow: 0 0 0 1px rgba(203, 255, 58, .28), 0 0 18px rgba(203, 255, 58, .14);
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -.02em;
            color: var(--text-main);
        }

        .site-nav .nav-link,
        .navbar-nav .nav-link {
            color: #C9D1DD;
            font-weight: 500;
            padding: 8px 16px;
            font-size: 15px;
            border-radius: 8px;
            position: relative;
            transition: color .2s ease;
        }

        .site-nav .nav-link:hover,
        .navbar-nav .nav-link:hover {
            color: var(--lime);
        }

        .navbar-nav .nav-link.active-link {
            color: var(--lime);
        }

        .navbar-nav .nav-link.active-link::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: -3px;
            height: 2px;
            border-radius: 2px;
            background: var(--lime);
            box-shadow: 0 0 8px rgba(203, 255, 58, .7);
        }

        .btn-primary-site {
            --bs-btn-border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--lime);
            border: 1px solid var(--lime);
            color: #0A0D14;
            font-weight: 700;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
            white-space: nowrap;
        }

        .btn-primary-site:hover,
        .btn-primary-site:focus {
            background: var(--lime);
            color: #0A0D14;
            transform: translateY(-2px);
            box-shadow: 0 0 0 1px rgba(203, 255, 58, .35), 0 10px 28px rgba(203, 255, 58, .2);
        }

        .btn-outline-site {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid rgba(139, 92, 246, .8);
            background: rgba(139, 92, 246, .04);
            color: #E4DFFB;
            font-weight: 600;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            transition: all .2s ease;
            white-space: nowrap;
        }

        .btn-outline-site:hover {
            background: rgba(139, 92, 246, .14);
            border-color: var(--violet);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(139, 92, 246, .16);
        }

        .header-cta {
            margin-left: 12px;
        }

        .navbar-toggler {
            border: 0;
            background: transparent;
            padding: 8px 10px;
            border-radius: 10px;
            transition: background .2s;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            background: rgba(255, 255, 255, .06);
        }

        .btn-bar {
            display: block;
            width: 24px;
            height: 2px;
            background: #EDF1F7;
            border-radius: 2px;
            margin: 5px 0;
            transition: background .2s;
        }

        .navbar-toggler .btn-bar {
            background: var(--text-main);
        }

        /* Hero */
        .cases-hero {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            padding: 96px 0 90px;
            background: linear-gradient(140deg, rgba(10, 13, 20, .92) 15%, rgba(21, 27, 39, .72) 60%, rgba(139, 92, 246, .1) 100%), url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            border-bottom: 1px solid var(--line);
            overflow: hidden;
        }

        .cases-hero::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(closest-side, rgba(203, 255, 58, .1), transparent 70%);
            pointer-events: none;
        }

        .cases-hero .hero-crumb {
            display: inline-flex;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .cases-hero .hero-crumb a {
            color: var(--text-muted);
        }

        .cases-hero .hero-crumb a:hover {
            color: var(--lime);
        }

        .cases-hero .hero-crumb .sep {
            color: rgba(148, 163, 184, .5);
        }

        .cases-hero h1 {
            font-size: clamp(38px, 5vw, 54px);
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -.03em;
            color: #fff;
            margin-bottom: 18px;
            max-width: 680px;
        }

        .cases-hero h1 .brand-lime {
            color: var(--lime);
        }

        .cases-hero .lead-text {
            color: #C6D0DE;
            font-size: 17px;
            max-width: 640px;
            margin-bottom: 28px;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 32px;
        }

        .hero-tags .tag-pill {
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            background: rgba(255, 255, 255, .06);
            border: 1px solid var(--line);
            color: #D7DEEA;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .hero-node-side {
            position: relative;
            max-width: 380px;
            margin-left: auto;
        }

        .hero-node-card {
            background: rgba(21, 27, 39, .78);
            border: 1px solid rgba(148, 163, 184, .22);
            border-radius: 22px;
            padding: 26px;
            backdrop-filter: blur(6px);
            box-shadow: var(--shadow-card);
            position: relative;
            z-index: 2;
        }

        .hero-node-card .node-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .node-pulse {
            width: 12px;
            height: 12px;
            background: var(--lime);
            border-radius: 50%;
            box-shadow: 0 0 0 0 rgba(203, 255, 58, .5);
            animation: pulse 1.8s infinite;
        }

        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(203, 255, 58, .45);
            }
            70% {
                box-shadow: 0 0 0 16px rgba(203, 255, 58, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(203, 255, 58, 0);
            }
        }

        .node-list {
            display: grid;
            gap: 12px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .node-list li {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 14px;
            padding: 10px 12px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(148, 163, 184, .12);
            border-radius: 10px;
        }

        .node-state {
            color: var(--lime);
            font-weight: 600;
        }

        .node-map-note {
            margin-top: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* Spotlight */
        .spotlight-section {
            background: var(--bg);
        }

        .spotlight-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card);
        }

        .spotlight-card .spot-img {
            flex: 1 1 46%;
            min-height: 380px;
            position: relative;
            overflow: hidden;
            background: var(--surface-2);
        }

        .spotlight-card .spot-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .spotlight-card .spot-body {
            flex: 1 1 46%;
            padding: 44px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .spot-tag {
            display: inline-flex;
            align-self: flex-start;
            gap: 6px;
            align-items: center;
            background: rgba(203, 255, 58, .1);
            color: var(--lime);
            border: 1px solid rgba(203, 255, 58, .24);
            font-size: 13px;
            padding: 5px 12px;
            border-radius: 999px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .spot-body h2 {
            font-size: 26px;
            line-height: 1.4;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .spot-body p {
            color: var(--text-muted);
            font-size: 15px;
            margin-bottom: 24px;
        }

        .spot-metrics {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
            margin: 8px 0 24px;
        }

        .metric-item {
            background: var(--surface-2);
            border: 1px solid var(--line);
            padding: 14px 16px;
            border-radius: 12px;
        }

        .metric-item strong {
            display: block;
            font-size: 20px;
            color: var(--lime);
            letter-spacing: -.02em;
        }

        .metric-item span {
            font-size: 13px;
            color: var(--text-muted);
        }

        .spot-point-list {
            list-style: none;
            margin: 0 0 28px;
            padding: 0;
            display: grid;
            gap: 10px;
        }

        .spot-point-list li {
            position: relative;
            padding-left: 20px;
            font-size: 14px;
            color: #C6D0DE;
        }

        .spot-point-list li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 12px;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--lime);
            box-shadow: 0 0 8px rgba(203, 255, 58, .6);
        }

        .link-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 700;
            color: var(--lime);
            font-size: 14px;
            margin-top: 4px;
        }

        .link-more::after {
            content: "→";
            transition: transform .2s;
        }

        .link-more:hover::after {
            transform: translateX(4px);
        }

        /* Case grid */
        .case-grid-section {
            background: #0C101A;
            border-top: 1px solid var(--line);
        }

        .case-grid .case-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
        }

        .case-grid .case-item:hover {
            transform: translateY(-6px);
            border-color: rgba(203, 255, 58, .38);
            box-shadow: 0 14px 34px rgba(0, 0, 0, .36);
        }

        .case-media {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--surface-2);
        }

        .case-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .case-item:hover .case-media img {
            transform: scale(1.04);
        }

        .case-media.is-missing::after {
            content: "PG国际网";
            display: flex;
            align-items: center;
            justify-content: center;
            position: absolute;
            inset: 0;
            color: rgba(237, 241, 247, .4);
            font-weight: 700;
            letter-spacing: .1em;
            font-size: 18px;
        }

        .case-kind {
            position: absolute;
            left: 16px;
            top: 16px;
            display: inline-block;
            background: rgba(10, 13, 20, .78);
            backdrop-filter: blur(6px);
            color: var(--lime);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
            border: 1px solid rgba(203, 255, 58, .2);
            z-index: 2;
        }

        .case-content {
            padding: 24px 24px;
        }

        .case-content h3 {
            font-size: 20px;
            line-height: 1.4;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .case-content p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .case-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }

        .case-tags span {
            font-size: 12px;
            color: #AAB7C8;
            background: rgba(255, 255, 255, .04);
            padding: 4px 10px;
            border-radius: 6px;
            border: 1px solid rgba(148, 163, 184, .12);
        }

        /* Metrics */
        .metrics-section {
            position: relative;
            padding: 88px 0;
            background: var(--surface);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .metrics-section .metric-band {
            background: var(--surface-2);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 42px 32px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .metric-cell {
            text-align: center;
            position: relative;
            padding: 12px 8px;
        }

        .metric-cell+.metric-cell::before {
            content: "";
            position: absolute;
            left: -14px;
            top: 12%;
            height: 76%;
            width: 1px;
            background: var(--line);
        }

        .metric-cell .number {
            color: var(--lime);
            font-size: 42px;
            line-height: 1.1;
            font-weight: 900;
            text-shadow: 0 0 24px rgba(203, 255, 58, .12);
        }

        .metric-cell .line {
            width: 26px;
            height: 2px;
            background: rgba(203, 255, 58, .28);
            margin: 14px auto 12px;
        }

        .metric-cell .desc {
            font-size: 13px;
            color: var(--text-muted);
        }

        .metric-note {
            text-align: center;
            margin-top: 20px;
            font-size: 13px;
            color: #718096;
        }

        /* Workflow */
        .workflow-section {
            background: var(--bg);
        }

        .workflow-left {
            position: sticky;
            top: 120px;
        }

        .workflow-left .eyebrow {
            color: var(--lime);
            font-size: 14px;
            letter-spacing: .12em;
            font-weight: 600;
        }

        .workflow-left h2 {
            font-size: 34px;
            font-weight: 800;
            margin: 12px 0 14px;
        }

        .workflow-left p {
            color: var(--text-muted);
            margin-bottom: 28px;
        }

        .workflow-steps {
            padding-left: 0;
            list-style: none;
            margin: 0;
        }

        .workflow-steps li {
            position: relative;
            padding: 22px 0 26px 44px;
            border-bottom: 1px solid var(--line);
        }

        .workflow-steps li:last-child {
            border-bottom: 0;
        }

        .workflow-steps li::before {
            content: "";
            position: absolute;
            left: 16px;
            top: 30px;
            width: 1px;
            height: calc(100% - 20px);
            background: rgba(148, 163, 184, .16);
        }

        .workflow-steps li:last-child::before {
            display: none;
        }

        .workflow-steps .step-num {
            position: absolute;
            left: 0;
            top: 20px;
            width: 34px;
            height: 34px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            color: #0A0D14;
            background: var(--lime);
            border-radius: 10px;
            box-shadow: 0 0 14px rgba(203, 255, 58, .24);
        }

        .workflow-steps h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .workflow-steps p {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 0;
        }

        .workflow-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--line);
            background: var(--surface);
            min-height: 440px;
            position: relative;
        }

        .workflow-visual .wf-back {
            width: 100%;
            height: 100%;
            min-height: 440px;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .wf-caption {
            position: absolute;
            left: 20px;
            right: 20px;
            bottom: 20px;
            background: rgba(10, 13, 20, .86);
            backdrop-filter: blur(8px);
            border: 1px solid var(--line);
            border-radius: 14px;
            padding: 18px 20px;
            font-size: 14px;
            color: #CBD5E1;
        }

        /* Contact */
        .contact-section {
            background: #0B0E16;
            border-top: 1px solid var(--line);
        }

        .contact-wrap {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 24px;
            padding: 48px;
            box-shadow: var(--shadow-card);
        }

        .contact-info h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .contact-info .contact-lead {
            color: var(--text-muted);
            font-size: 15px;
            margin-bottom: 24px;
            max-width: 420px;
        }

        .contact-points {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
            display: grid;
            gap: 14px;
        }

        .contact-points li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            font-size: 14px;
            color: #B6C2D4;
        }

        .contact-points .point-mark {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            margin-top: 10px;
            background: var(--lime);
            box-shadow: 0 0 8px var(--lime);
            flex: 0 0 auto;
        }

        .cs-line {
            border-top: 1px solid var(--line);
            margin: 20px 0;
        }

        .cs-tagline {
            color: var(--text-muted);
            font-size: 14px;
            margin-top: 18px;
        }

        .cs-tagline strong {
            color: var(--lime);
            font-weight: 700;
        }

        .form-card .form-label {
            color: #C8D1DE;
            font-size: 14px;
            font-weight: 600;
        }

        .form-card .form-control {
            background: var(--surface-2);
            border: 1px solid rgba(148, 163, 184, .2);
            color: var(--text-main);
            border-radius: 10px;
            padding: 12px 14px;
            font-family: inherit;
            transition: border-color .2s ease, box-shadow .2s ease;
            min-height: 48px;
        }

        .form-card .form-control::placeholder {
            color: #667085;
        }

        .form-card .form-control:focus {
            background: var(--surface-2);
            border-color: var(--lime);
            box-shadow: 0 0 0 3px rgba(203, 255, 58, .12);
            color: var(--text-main);
        }

        .form-card .form-select {
            background-color: var(--surface-2);
            border-color: rgba(148, 163, 184, .2);
            color: var(--text-main);
            border-radius: 10px;
            min-height: 48px;
        }

        .form-card .form-select:focus {
            border-color: var(--lime);
            box-shadow: 0 0 0 3px rgba(203, 255, 58, .12);
        }

        .form-success {
            display: none;
            margin-top: 16px;
            background: rgba(203, 255, 58, .1);
            border: 1px solid rgba(203, 255, 58, .22);
            color: var(--lime);
            padding: 14px 16px;
            border-radius: 10px;
            font-size: 14px;
        }

        .btn-submit {
            min-height: 48px;
            width: 100%;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg);
        }

        .faq-left-wrap {
            position: sticky;
            top: 130px;
        }

        .faq-left-wrap .eyebrow {
            color: var(--lime);
            font-weight: 600;
            font-size: 14px;
            letter-spacing: .12em;
        }

        .faq-left-wrap h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .faq-left-wrap p {
            color: var(--text-muted);
            margin-bottom: 28px;
        }

        .faq-accordion .accordion-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 16px;
            margin-bottom: 16px;
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-main);
            font-weight: 700;
            font-size: 16px;
            padding: 20px 24px;
            box-shadow: none;
            border-radius: 0;
            transition: background .2s;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--lime);
            box-shadow: inset 2px 0 0 var(--lime);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }

        .faq-accordion .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M8 3v10M3 8h10' stroke='%239AA8BC' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
            width: 18px;
            height: 18px;
            transition: transform .2s;
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M3 8h10' stroke='%23CBFF3A' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
        }

        .faq-accordion .accordion-body {
            color: var(--text-muted);
            padding: 4px 24px 24px;
            font-size: 15px;
        }

        /* Footer */
        .site-footer {
            background: #06080D;
            border-top: 1px solid var(--line);
            padding-top: 70px;
        }

        .site-footer .footer-brand .site-logo {
            margin-bottom: 12px;
        }

        .site-footer p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-title {
            color: #EDF1F7;
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 16px;
            letter-spacing: .02em;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color .2s;
        }

        .footer-links a:hover {
            color: var(--lime);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 50px;
            border-top: 1px solid var(--line);
            padding: 22px 0 26px;
            color: #6B788A;
            font-size: 13px;
        }

        .footer-bottom span {
            letter-spacing: .02em;
        }

        /* Responsive */
        @media (max-width: 1199px) {
            .hero-node-side {
                display: none;
            }
        }

        @media (max-width: 991px) {
            .section {
                padding-top: 72px;
                padding-bottom: 72px;
            }

            .site-header .navbar-collapse {
                background: rgba(10, 13, 20, .98);
                border: 1px solid var(--line);
                border-radius: 16px;
                padding: 16px 14px;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                z-index: 1090;
                box-shadow: 0 22px 40px rgba(0, 0, 0, .44);
            }

            .navbar-nav .nav-link.active-link::after {
                display: none;
            }

            .nav-link {
                padding: 9px 8px !important;
            }

            .navbar-nav {
                padding: 8px 4px;
            }

            .header-cta {
                margin-left: 0;
                margin-top: 10px;
                width: 100%;
            }

            .spotlight-card .spot-img,
            .spotlight-card .spot-body {
                flex: 1 1 100%;
            }

            .spotlight-card .spot-img {
                min-height: 260px;
            }

            .metrics-section .metric-band {
                grid-template-columns: repeat(2, 1fr);
            }

            .metric-cell+.metric-cell::before {
                display: none;
            }

            .workflow-left {
                position: relative;
                top: auto;
                margin-bottom: 36px;
            }

            .faq-left-wrap {
                position: relative;
                top: auto;
                margin-bottom: 32px;
            }

            .contact-wrap {
                padding: 36px;
            }
        }

        @media (max-width: 768px) {
            .cases-hero {
                min-height: 540px;
                padding: 76px 0 70px;
            }

            .contact-wrap {
                padding: 26px;
            }

            .spotlight-card .spot-body {
                padding: 28px;
            }
        }

        @media (max-width: 576px) {
            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }

            .cases-hero {
                padding: 56px 0 58px;
            }

            .cases-hero .lead-text {
                font-size: 15px;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .spot-body {
                padding: 24px 20px;
            }

            .spot-metrics {
                grid-template-columns: 1fr;
            }

            .metrics-section .metric-band {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
                padding: 28px 18px;
            }

            .metric-cell .number {
                font-size: 34px;
            }

            .workflow-left h2,
            .faq-left-wrap h2,
            .contact-info h2 {
                font-size: 27px;
            }

            .contact-bottom-row {
                flex-direction: row;
            }
        }

/* roulang page: category1 */
:root {
            --bg: #0A0D14;
            --surface: #151B27;
            --surface-2: #1D2432;
            --accent: #CBFF3A;
            --accent-light: #dcff66;
            --violet: #8B5CF6;
            --amber: #FFB454;
            --text: #EDF1F7;
            --muted: #9AA8BC;
            --line: rgba(148, 163, 184, .16);
            --radius: 20px;
            --radius-sm: 14px;
            --radius-btn: 10px;
            --shadow: 0 22px 60px rgba(0, 0, 0, .35);
            --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        body.noscroll {
            overflow: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 1rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        p {
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5 {
            line-height: 1.3;
            font-weight: 700;
        }
        ::selection {
            background: rgba(203, 255, 58, .22);
            color: #fff;
        }
        .site-container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .container.site-container {
            max-width: 1280px;
        }
        .section {
            padding: 104px 0;
            position: relative;
        }
        .section-sm {
            padding: 76px 0;
            position: relative;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            border: 1px solid transparent;
            transition: background .25s ease, border-color .25s ease, color .25s ease, box-shadow .25s ease, transform .25s ease;
        }
        .btn-primary-site {
            background: var(--accent);
            color: #111820;
            border-color: var(--accent);
            box-shadow: 0 8px 24px rgba(203, 255, 58, .14);
        }
        .btn-primary-site:hover,
        .btn-primary-site:focus-visible {
            background: var(--accent-light);
            color: #0c0e12;
            border-color: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 14px 30px rgba(203, 255, 58, .24);
        }
        .btn-outline-site {
            background: transparent;
            color: #EDF1F7;
            border-color: rgba(139, 92, 246, .85);
        }
        .btn-outline-site:hover,
        .btn-outline-site:focus-visible {
            background: rgba(139, 92, 246, .12);
            border-color: var(--violet);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(139, 92, 246, .16);
        }
        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            letter-spacing: .14em;
            color: var(--accent);
            font-weight: 600;
            text-transform: uppercase;
            margin-bottom: 16px;
        }
        .section-eyebrow::before {
            content: '';
            width: 28px;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), var(--violet));
            border-radius: 2px;
        }
        .section-head {
            margin-bottom: 46px;
        }
        .section-head .section-title {
            font-size: calc(28px + 1vw);
            max-width: 860px;
            letter-spacing: -.02em;
        }
        .section-head .section-lead {
            color: var(--muted);
            margin-top: 18px;
            max-width: 720px;
            font-size: 1.06rem;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1080;
            background: rgba(10, 13, 20, .82);
            -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(148, 163, 184, .12);
        }
        .site-header .navbar {
            padding: 14px 0;
        }
        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .site-logo .logo-badge {
            width: 38px;
            height: 38px;
            background: var(--accent);
            color: #0A0D14;
            font-weight: 800;
            font-size: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            letter-spacing: -.4px;
            box-shadow: 0 0 22px rgba(203, 255, 58, .18);
        }
        .site-logo .logo-text {
            color: #fff;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: .05em;
        }
        .navbar-nav {
            gap: 2px;
        }
        .nav-link {
            color: #CBD2DC !important;
            font-weight: 500;
            font-size: 16px;
            padding: 10px 16px !important;
            position: relative;
            border-radius: 10px;
        }
        .nav-link:hover,
        .nav-link:focus-visible {
            color: var(--accent) !important;
        }
        .nav-link.active-link {
            color: var(--accent) !important;
        }
        .nav-link.active-link::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 3px;
            height: 3px;
            border-radius: 2px;
            background: var(--accent);
            box-shadow: 0 0 14px rgba(203, 255, 58, .55);
        }
        .header-cta {
            padding: 10px 22px;
            font-size: .95rem;
            white-space: nowrap;
        }
        .navbar-toggler {
            border: 1px solid rgba(203, 255, 58, .35);
            background: transparent;
            border-radius: var(--radius-btn);
            padding: 0;
            width: 46px;
            height: 44px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            box-shadow: none !important;
            transition: border-color .2s ease;
        }
        .navbar-toggler:hover {
            border-color: var(--accent);
        }
        .navbar-toggler .btn-bar {
            width: 22px;
            height: 2px;
            background: #EDF1F7;
            border-radius: 2px;
            display: block;
            transition: transform .2s ease, opacity .2s ease;
        }
        .navbar-toggler[aria-expanded="true"] .btn-bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .navbar-toggler[aria-expanded="true"] .btn-bar:nth-child(2) {
            opacity: 0;
        }
        .navbar-toggler[aria-expanded="true"] .btn-bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .page-hero {
            position: relative;
            padding: 136px 0 86px;
            background-image: linear-gradient(90deg, rgba(10, 13, 20, .92) 0%, rgba(10, 13, 20, .72) 50%, rgba(10, 13, 20, .78) 100%), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--line);
            overflow: hidden;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            width: 560px;
            height: 260px;
            right: -120px;
            bottom: -60px;
            background: radial-gradient(circle, rgba(139, 92, 246, .22), transparent 68%);
            pointer-events: none;
        }
        .breadcrumb-nav {
            margin-bottom: 28px;
            color: var(--muted);
            font-size: 14px;
            position: relative;
            z-index: 2;
        }
        .breadcrumb-nav ol {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .breadcrumb-nav li + li::before {
            content: '/';
            margin-right: 10px;
            color: rgba(148, 163, 184, .5);
        }
        .breadcrumb-nav a {
            color: var(--muted);
        }
        .breadcrumb-nav a:hover {
            color: var(--accent);
        }
        .page-hero h1 {
            font-size: clamp(36px, 5vw, 54px);
            letter-spacing: -.02em;
            color: #fff;
            max-width: 780px;
            position: relative;
            z-index: 2;
        }
        .page-hero h1 .hero-line {
            background: linear-gradient(90deg, var(--accent), #fff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .page-hero .hero-lead {
            font-size: 1.16rem;
            color: #C3CCD9;
            max-width: 740px;
            margin-top: 22px;
            position: relative;
            z-index: 2;
        }
        .hero-actions {
            margin-top: 34px;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            position: relative;
            z-index: 2;
        }
        .hero-note {
            margin-top: 38px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            position: relative;
            z-index: 2;
        }
        .hero-tagchip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(13, 18, 28, .6);
            border: 1px solid rgba(203, 255, 58, .2);
            color: #DDE4EC;
            font-size: 13px;
            padding: 8px 15px;
            border-radius: 999px;
        }
        .hero-tagchip i {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
            box-shadow: 0 0 10px rgba(203, 255, 58, .5);
        }

        .intro-block {
            padding-top: 88px;
        }
        .intro-copy {
            max-width: 860px;
            font-size: 1.1rem;
            line-height: 1.9;
            color: #D5DDE9;
        }
        .intro-copy strong {
            color: var(--accent);
            font-weight: 600;
        }

        .solution-row {
            margin-bottom: 64px;
        }
        .solution-media {
            position: relative;
        }
        .media-frame {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius);
            border: 1px solid rgba(148, 163, 184, .2);
            background: linear-gradient(135deg, #182235, #0E1420);
            aspect-ratio: 16 / 10;
            min-height: 280px;
            box-shadow: var(--shadow);
        }
        .media-frame img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
            z-index: 2;
        }
        .media-frame::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 18, 28, .0), rgba(13, 18, 28, .42));
            z-index: 3;
            pointer-events: none;
        }
        .solution-text {
            padding: 14px 8px;
        }
        .solution-index {
            color: var(--accent);
            font-weight: 400;
            font-size: 1rem;
            letter-spacing: .06em;
            margin-bottom: 10px;
            display: block;
        }
        .solution-text h3 {
            font-size: clamp(24px, 2.4vw, 34px);
            letter-spacing: -.02em;
            color: #fff;
            margin-bottom: 18px;
        }
        .solution-text p {
            color: #C7D1DE;
            margin-bottom: 18px;
            font-size: 1.05rem;
        }
        .solution-bullets {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
            display: grid;
            gap: 10px;
        }
        .solution-bullets li {
            position: relative;
            padding-left: 26px;
            color: #B9C4D3;
        }
        .solution-bullets li::before {
            content: '';
            position: absolute;
            left: 2px;
            top: 10px;
            width: 12px;
            height: 6px;
            border-left: 2px solid var(--accent);
            border-bottom: 2px solid var(--accent);
            transform: rotate(-45deg);
            border-radius: 1px;
        }
        .solution-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .solution-tag {
            background: rgba(139, 92, 246, .13);
            color: #D7CFFA;
            border: 1px solid rgba(139, 92, 246, .34);
            padding: 5px 13px;
            border-radius: 999px;
            font-size: 13px;
        }

        .approach-section {
            background: #0D1119;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .approach-visual {
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
            background: linear-gradient(140deg, #1D2432, #0A0D14);
            border: 1px solid rgba(148, 163, 184, .18);
            min-height: 320px;
            box-shadow: var(--shadow);
        }
        .approach-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .approach-visual-caption {
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 18px;
            background: rgba(10, 13, 20, .66);
            border: 1px solid var(--line);
            backdrop-filter: blur(4px);
            border-radius: 16px;
            padding: 16px 18px;
            color: #D6DEEC;
            font-size: .94rem;
        }
        .steps-list {
            display: grid;
            gap: 0;
        }
        .step-item {
            position: relative;
            padding: 0 0 34px 54px;
            border-radius: 0;
        }
        .step-item:last-child {
            padding-bottom: 0;
        }
        .step-item::before {
            content: '';
            position: absolute;
            left: 19px;
            top: 42px;
            bottom: 0;
            width: 1px;
            background: linear-gradient(180deg, rgba(203, 255, 58, .45), rgba(139, 92, 246, .3));
        }
        .step-item:last-child::before {
            display: none;
        }
        .step-num {
            position: absolute;
            left: 0;
            top: 0;
            width: 38px;
            height: 38px;
            border-radius: 13px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--surface-2);
            border: 1px solid rgba(203, 255, 58, .35);
            color: var(--accent);
            font-weight: 600;
            font-size: 15px;
            box-shadow: 0 0 20px rgba(203, 255, 58, .08);
        }
        .step-title {
            font-size: 20px;
            color: #fff;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .step-desc {
            color: var(--muted);
            font-size: .97rem;
            line-height: 1.8;
        }
        .approach-aside {
            padding-left: 12px;
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .scenario-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 30px;
            transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
            position: relative;
            overflow: hidden;
        }
        .scenario-card::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 90px;
            height: 90px;
            background: radial-gradient(circle, rgba(203, 255, 58, .12), transparent 70%);
        }
        .scenario-card:hover {
            border-color: rgba(203, 255, 58, .55);
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .scenario-icon {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: rgba(139, 92, 246, .16);
            border: 1px solid rgba(139, 92, 246, .3);
            color: var(--violet);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            transition: background .2s ease;
        }
        .scenario-card:hover .scenario-icon {
            background: rgba(139, 92, 246, .28);
        }
        .scenario-icon svg {
            width: 22px;
            height: 22px;
            fill: none;
            stroke: currentColor;
            stroke-width: 1.7;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .scenario-card h3 {
            color: #fff;
            font-size: 21px;
            margin-bottom: 12px;
        }
        .scenario-card p {
            color: var(--muted);
            font-size: .98rem;
            margin-bottom: 0;
        }

        .value-strip-section {
            background: #0D1119;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .value-strip {
            background: var(--surface);
            border-radius: 24px;
            border: 1px solid rgba(148, 163, 184, .18);
            padding: 40px 10px;
            position: relative;
            overflow: hidden;
        }
        .value-strip::before {
            content: '';
            position: absolute;
            width: 520px;
            height: 220px;
            top: -120px;
            right: -80px;
            background: radial-gradient(circle, rgba(203, 255, 58, .1), transparent 70%);
        }
        .value-items {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
        }
        .value-item {
            padding: 18px 32px;
            text-align: center;
            border-left: 1px solid rgba(148, 163, 184, .13);
        }
        .value-item:first-child {
            border-left: none;
        }
        .value-num {
            font-size: 34px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            text-shadow: 0 0 26px rgba(203, 255, 58, .14);
            letter-spacing: -.03em;
        }
        .value-num-note {
            font-size: 14px;
            color: var(--muted);
            display: block;
            font-weight: 500;
            margin-top: 10px;
        }
        .value-line {
            width: 44px;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), var(--violet));
            margin: 14px auto 0;
            border-radius: 2px;
        }

        .faq-column {
            position: sticky;
            top: 118px;
        }
        .faq-column .support-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 30px;
            margin-top: 28px;
        }
        .support-card p {
            color: var(--muted);
            font-size: .98rem;
        }
        .faq-accordion .accordion-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 16px;
            overflow: hidden;
            margin-bottom: 14px;
            transition: border-color .2s ease;
        }
        .faq-accordion .accordion-item:hover,
        .faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(203, 255, 58, .42);
        }
        .faq-accordion .accordion-button {
            background: transparent;
            color: #E5EAF0;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 22px 28px;
            box-shadow: none;
        }
        .faq-accordion .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23CBFF3A' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 6l5 5 5-5'/%3E%3C/svg%3E");
            background-size: 1.05rem;
            transition: transform .2s ease;
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(-180deg);
        }
        .faq-accordion .accordion-button:focus,
        .faq-accordion .accordion-button:not(.collapsed) {
            box-shadow: inset 0 4px 0 var(--accent);
            background: rgba(203, 255, 58, .03);
            color: #fff;
        }
        .faq-accordion .accordion-body {
            color: #BBC6D6;
            padding: 0 28px 24px;
            border-top: 1px solid transparent;
            line-height: 1.9;
            font-size: .98rem;
        }

        .contact-section {
            background: linear-gradient(180deg, rgba(139, 92, 246, .05), transparent 160px);
        }
        .contact-intro h2 {
            font-size: calc(28px + 1.1vw);
            letter-spacing: -.02em;
            margin-bottom: 22px;
        }
        .contact-intro p {
            color: var(--muted);
            font-size: 1.05rem;
            max-width: 480px;
        }
        .contact-meta {
            margin-top: 30px;
            display: grid;
            gap: 14px;
            max-width: 460px;
        }
        .contact-meta-item {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 16px;
            padding: 14px 18px;
            color: #D5DDE9;
        }
        .contact-meta-item .icon-dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            flex-shrink: 0;
            box-shadow: 0 0 10px rgba(203, 255, 58, .4);
        }
        .contact-meta-item span:last-child {
            font-size: .97rem;
        }
        .contact-form-panel {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 24px;
            padding: 36px;
            box-shadow: var(--shadow);
        }
        .form-label-site {
            color: #C6D0DD;
            font-size: .95rem;
            font-weight: 500;
            margin-bottom: 8px;
        }
        .form-control-site {
            background: #0F1522;
            border: 1px solid rgba(148, 163, 184, .25);
            color: #EDF1F7;
            border-radius: 12px;
            min-height: 48px;
            padding: 12px 16px;
            transition: border-color .2s ease, box-shadow .2s ease;
        }
        .form-control-site::placeholder {
            color: #66758A;
        }
        .form-control-site:focus {
            background: #111927;
            border-color: rgba(203, 255, 58, .68);
            color: #EDF1F7;
            box-shadow: 0 0 0 .25rem rgba(203, 255, 58, .09);
        }
        .form-control-site.form-select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%239AA8BC' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 6l5 5 5-5'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            background-size: 14px;
            padding-right: 42px;
        }
        textarea.form-control-site {
            min-height: 108px;
            resize: vertical;
        }
        .form-check-site {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: .92rem;
            color: var(--muted);
        }
        .form-check-site input[type="checkbox"] {
            width: 17px;
            height: 17px;
            margin-top: 4px;
            accent-color: var(--accent);
        }
        .form-message {
            margin-top: 14px;
            border-radius: 12px;
            padding: 13px 18px;
            font-size: .96rem;
            border: 1px solid transparent;
            display: none;
        }
        .form-message.success {
            display: block;
            color: #CBFF3A;
            background: rgba(203, 255, 58, .07);
            border-color: rgba(203, 255, 58, .32);
        }
        .form-message.error {
            display: block;
            color: #ff9f8a;
            background: rgba(255, 90, 70, .08);
            border-color: rgba(255, 90, 70, .32);
        }
        .was-validated .form-control-site:invalid {
            border-color: rgba(255, 100, 80, .6);
        }
        .was-validated .form-control-site:valid {
            border-color: rgba(139, 92, 246, .5);
        }

        .site-footer {
            background: #05070D;
            border-top: 1px solid rgba(148, 163, 184, .12);
            padding: 76px 0 0;
            color: #AAB5C3;
        }
        .site-footer .site-logo .logo-text {
            color: #fff;
        }
        .footer-brand p {
            color: #8B98AA;
            max-width: 340px;
            font-size: .98rem;
            line-height: 1.85;
        }
        .footer-title {
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            gap: 10px;
        }
        .footer-links a {
            color: #97A4B5;
            font-size: .95rem;
            transition: color .2s ease;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            margin-top: 56px;
            border-top: 1px solid rgba(148, 163, 184, .14);
            padding: 22px 0;
            display: flex;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            color: #77849A;
            font-size: .9rem;
        }

        @media (max-width: 991.98px) {
            .section {
                padding: 76px 0;
            }
            .navbar-collapse {
                padding: 18px 0 8px;
            }
            .navbar-nav {
                gap: 0;
                margin-bottom: 14px;
            }
            .nav-link {
                padding: 12px 8px !important;
            }
            .nav-link.active-link::after {
                left: 8px;
                right: auto;
                width: 36px;
            }
            .header-cta {
                margin-left: 0;
                margin-bottom: 4px;
            }
            .page-hero {
                padding: 108px 0 64px;
            }
            .site-logo .logo-badge {
                width: 36px;
                height: 36px;
            }
            .value-items {
                grid-template-columns: repeat(2, 1fr);
            }
            .value-item {
                border-left: none;
                padding: 18px 12px;
            }
            .value-item:nth-child(3) {
                border-top: 1px solid rgba(148, 163, 184, .1);
            }
            .value-item:nth-child(4) {
                border-top: 1px solid rgba(148, 163, 184, .1);
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }
        @media (max-width: 767.98px) {
            .page-hero h1 {
                font-size: 36px;
            }
            .page-hero .hero-lead {
                font-size: 1.02rem;
            }
            .solution-row {
                margin-bottom: 40px;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .approach-aside {
                padding-left: 0;
                margin-top: 30px;
            }
            .step-item {
                padding-left: 48px;
            }
            .contact-form-panel {
                padding: 24px;
                margin-top: 30px;
            }
            .faq-column {
                position: static;
            }
            .media-frame {
                min-height: 220px;
            }
        }
        @media (max-width: 575.98px) {
            .site-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding: 60px 0;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .btn {
                width: 100%;
            }
            .hero-actions .btn {
                margin-right: 0;
            }
            .nav-link {
                font-size: 15px;
            }
            .page-hero {
                padding: 96px 0 50px;
            }
            .value-items {
                grid-template-columns: 1fr 1fr;
            }
            .value-item {
                padding: 20px 8px;
            }
            .value-num {
                font-size: 28px;
            }
            .scenario-card {
                padding: 24px;
            }
            .solution-text {
                padding: 8px 2px;
            }
            .contact-meta-item {
                padding: 12px 14px;
            }
            .footer-links {
                font-size: .9rem;
            }
        }
        @media (max-width: 480px) {
            .value-items {
                grid-template-columns: 1fr;
            }
            .value-item {
                border-top: 1px solid rgba(148, 163, 184, .1);
                text-align: center;
            }
            .value-item:first-child {
                border-top: none;
            }
            .hero-tagchip {
                width: 100%;
            }
            .media-frame {
                aspect-ratio: 4 / 3;
            }
        }

/* roulang page: category3 */
:root {
            --bg-body: #0A0D14;
            --surface: #151B27;
            --surface-2: #1D2432;
            --surface-deep: #0C111B;
            --text-main: #EDF1F7;
            --text-sub: #9AA8BC;
            --line: rgba(148, 163, 184, 0.16);
            --line-lime: rgba(203, 255, 58, 0.45);
            --lime: #CBFF3A;
            --purple: #8B5CF6;
            --amber: #FFB454;
            --red-rgb: 255, 77, 109;
            --lime-rgb: 203, 255, 58;
            --purple-rgb: 139, 92, 246;
            --font-sans: PingFang SC, Microsoft YaHei, Noto Sans CJK SC, "Source Han Sans SC", sans-serif;
            --radius-sm: 10px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-pill: 999px;
            --shadow-deep: 0 18px 45px rgba(0, 0, 0, 0.28);
            --shadow-glow: 0 12px 30px rgba(203, 255, 58, 0.15);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background-color: var(--bg-body);
            color: var(--text-main);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        body::selection {
            background: var(--lime);
            color: var(--bg-body);
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-main);
            line-height: 1.3;
            font-weight: 600;
            margin: 0 0 14px;
        }

        p {
            margin: 0 0 16px;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease, background .25s ease, border-color .25s ease, box-shadow .25s ease, transform .25s ease;
        }

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

        ul,
        ol {
            margin: 0 0 1rem;
            padding-left: 0;
            list-style: none;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }

        .site-container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
            margin: 0 auto;
        }

        section,
        .section {
            position: relative;
            z-index: 1;
        }

        .section {
            padding: 92px 0;
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 13, 20, 0.86);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(148, 163, 184, 0.12);
        }

        .site-header .navbar {
            min-height: 74px;
            padding: 10px 0;
        }

        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--text-main);
            padding: 8px 0;
        }

        .site-logo .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 13px;
            background: var(--lime);
            color: var(--bg-body);
            font-weight: 800;
            font-size: 17px;
            letter-spacing: 0;
            box-shadow: 0 0 18px rgba(203, 255, 58, 0.35);
        }

        .site-logo .logo-text {
            font-weight: 700;
            font-size: 22px;
            letter-spacing: 1px;
            color: var(--text-main);
        }

        .navbar .nav-link {
            color: var(--text-sub);
            font-weight: 500;
            padding: 10px 20px !important;
            position: relative;
            border-radius: 10px;
        }

        .navbar .nav-link:hover {
            color: var(--text-main);
        }

        .navbar .nav-link.active-link {
            color: var(--lime) !important;
        }

        .navbar .nav-link.active-link::after {
            content: "";
            position: absolute;
            left: 20px;
            right: 20px;
            bottom: 4px;
            height: 2px;
            border-radius: 8px;
            background: var(--lime);
            box-shadow: 0 0 13px rgba(203, 255, 58, 0.72);
            opacity: 1;
        }

        .navbar-toggler {
            border: 1px solid rgba(148, 163, 184, 0.22);
            border-radius: 10px;
            padding: 8px 10px;
            background: rgba(21, 27, 39, 0.82);
        }

        .navbar-toggler:focus {
            box-shadow: none;
            border-color: rgba(203, 255, 58, 0.4);
        }

        .navbar-toggler .btn-bar {
            display: block;
            width: 24px;
            height: 2px;
            border-radius: 4px;
            background: var(--lime);
            margin: 5px 0;
            transition: all .25s ease;
        }

        .btn-primary-site {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            background: var(--lime);
            color: #0B0E15;
            border: 1px solid var(--lime);
            font-weight: 700;
            font-size: 15px;
            line-height: 1;
            padding: 13px 26px;
            border-radius: var(--radius-pill);
            transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
        }

        .btn-primary-site:hover {
            background: #D9FF66;
            color: #0B0E15;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(203, 255, 58, 0.24);
        }

        .btn-primary-site:active {
            transform: translateY(0);
        }

        .btn-outline-site {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            background: transparent;
            color: #E9E5FF;
            border: 1px solid rgba(139, 92, 246, 0.74);
            font-weight: 600;
            font-size: 15px;
            line-height: 1;
            padding: 13px 26px;
            border-radius: var(--radius-pill);
            transition: all .25s ease;
        }

        .btn-outline-site:hover {
            background: rgba(139, 92, 246, 0.13);
            color: #fff;
            border-color: var(--purple);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(139, 92, 246, 0.15);
        }

        .header-cta {
            padding: 11px 24px;
            font-size: 14px;
            margin-left: 10px;
            white-space: nowrap;
        }

        /* 页面顶部小 Hero */
        .news-category-hero {
            display: flex;
            align-items: flex-end;
            min-height: 460px;
            position: relative;
            padding: 86px 0 70px;
            background: linear-gradient(110deg, rgba(9, 12, 20, 0.96) 0%, rgba(9, 12, 20, 0.82) 46%, rgba(139, 92, 246, 0.20) 100%), url("/assets/images/backpic/back-1.webp") center center / cover no-repeat;
            border-bottom: 1px solid rgba(148, 163, 184, 0.12);
            overflow: hidden;
        }

        .news-category-hero::after {
            content: "";
            position: absolute;
            width: 340px;
            height: 340px;
            right: -80px;
            top: 20px;
            border-radius: 50%;
            background: rgba(203, 255, 58, 0.08);
            filter: blur(90px);
            z-index: 0;
            pointer-events: none;
        }

        .news-category-hero .hero-inner {
            position: relative;
            z-index: 2;
        }

        .hero-crumb {
            display: inline-flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            padding: 7px 14px;
            border: 1px solid rgba(203, 255, 58, 0.18);
            background: rgba(10, 13, 20, 0.5);
            border-radius: var(--radius-pill);
            color: var(--text-sub);
            font-size: 13px;
            margin-bottom: 28px;
        }

        .hero-crumb a {
            color: var(--lime);
        }

        .hero-crumb .divider {
            color: rgba(148, 163, 184, 0.5);
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--lime);
            letter-spacing: 2px;
            margin-bottom: 14px;
        }

        .news-category-hero h1 {
            font-size: clamp(34px, 5vw, 54px);
            line-height: 1.24;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 20px;
            max-width: 860px;
        }

        .news-category-hero .hero-description {
            max-width: 800px;
            color: #CBD5E1;
            font-size: 16px;
            line-height: 1.9;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .hero-footline {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 22px;
            margin-top: 34px;
            color: var(--text-sub);
            font-size: 14px;
        }

        .hero-footline span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .hero-footline i {
            width: 7px;
            height: 7px;
            background: var(--lime);
            border-radius: 50%;
            box-shadow: 0 0 10px rgba(203, 255, 58, 0.7);
        }

        /* 板块标题 */
        .section-heading {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 46px;
        }

        .section-heading h2 {
            font-size: clamp(25px, 3.4vw, 36px);
            margin: 0;
        }

        .section-heading .lead-copy {
            max-width: 620px;
            color: var(--text-sub);
            margin-top: 12px;
            margin-bottom: 0;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(203, 255, 58, 0.08);
            border: 1px solid rgba(203, 255, 58, 0.16);
            padding: 6px 13px;
            border-radius: 999px;
            color: var(--lime);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .section-to-link {
            color: var(--text-sub);
            font-size: 14px;
        }

        .section-to-link:hover {
            color: var(--lime);
        }

        /* 主题索引四列卡片 */
        .topic-map-section {
            background: linear-gradient(180deg, var(--bg-body) 0, #0D111A 100%);
        }

        .topic-map-section::before {
            content: "";
            position: absolute;
            inset: 0;
            pointer-events: none;
            background: radial-gradient(ellipse 580px 300px at 85% 20%, rgba(203, 255, 58, 0.04), transparent 65%);
        }

        .topic-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 22px 24px 20px;
            height: 100%;
            position: relative;
            overflow: hidden;
            transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease;
        }

        .topic-card::after {
            content: "";
            position: absolute;
            width: 90px;
            height: 90px;
            right: -36px;
            top: -30px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.13), transparent 70%);
            pointer-events: none;
        }

        .topic-card:hover {
            border-color: var(--line-lime);
            transform: translateY(-3px);
            box-shadow: 0 14px 35px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(203, 255, 58, 0.05);
        }

        .topic-num {
            display: inline-block;
            font-size: 24px;
            color: var(--purple);
            font-weight: 200;
            line-height: 1;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }

        .topic-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .topic-card p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.8;
        }

        .topic-card ul {
            margin: 8px 0 4px;
        }

        .topic-card ul li {
            border-top: 1px solid rgba(148, 163, 184, 0.1);
            padding: 8px 0;
        }

        .topic-card ul li a {
            color: #BCC6D4;
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color .2s;
        }

        .topic-card ul li a::before {
            content: "›";
            color: var(--amber);
            font-size: 17px;
            line-height: 1;
        }

        .topic-card ul li a:hover {
            color: var(--lime);
        }

        /* 焦点阅读 */
        .focus-section {
            background: #0D111A;
        }

        .focus-main {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--line);
            min-height: 410px;
            background: #131B2B;
            display: flex;
            align-items: flex-end;
            transition: border-color .3s ease;
        }

        .focus-main:hover {
            border-color: rgba(203, 255, 58, 0.44);
        }

        .focus-main .focus-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            object-fit: cover;
        }

        .focus-main .focus-cover {
            position: relative;
            width: 100%;
            height: 100%;
            min-height: 410px;
            padding: 28px;
            border-radius: var(--radius-lg);
            background: linear-gradient(180deg, rgba(9, 12, 20, 0.08) 10%, rgba(9, 12, 20, 0.92) 86%);
            display: flex;
            align-items: flex-end;
            text-decoration: none;
        }

        .focus-cover .main-label {
            display: inline-flex;
            background: rgba(203, 255, 58, 0.92);
            color: #0D141F;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            padding: 4px 13px;
            margin-bottom: 12px;
        }

        .focus-cover h3 {
            font-size: clamp(20px, 2.2vw, 27px);
            line-height: 1.45;
            color: #fff;
            max-width: 600px;
            margin-bottom: 10px;
        }

        .focus-cover p {
            color: rgba(237, 241, 247, 0.82);
            font-size: 14px;
            margin-bottom: 12px;
            max-width: 600px;
        }

        .read-more {
            display: inline-flex;
            gap: 8px;
            align-items: center;
            color: var(--lime);
            font-size: 14px;
            font-weight: 600;
        }

        .focus-side {
            display: flex;
            flex-direction: column;
            gap: 18px;
            height: 100%;
        }

        .side-feature {
            flex: 1;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 22px;
            min-height: 194px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: border-color .3s, transform .3s;
        }

        .side-feature:hover {
            border-color: rgba(203, 255, 58, 0.35);
            transform: translateY(-2px);
        }

        .side-feature .tag-label {
            color: var(--amber);
            font-size: 12px;
            letter-spacing: 1px;
            font-weight: 600;
        }

        .side-feature h3 {
            font-size: 17px;
            color: var(--text-main);
            margin: 12px 0 6px;
        }

        .side-feature p {
            color: var(--text-sub);
            font-size: 13px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .side-feature .feature-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 14px;
            color: var(--text-sub);
            font-size: 12px;
            padding-top: 12px;
            border-top: 1px solid rgba(148, 163, 184, 0.1);
        }

        /* 时间线 */
        .timeline-section {
            background: var(--bg-body);
        }

        .timeline-wrapper {
            position: relative;
            margin-top: 20px;
        }

        .timeline-wrapper::before {
            content: "";
            position: absolute;
            width: 1px;
            left: 8px;
            top: 30px;
            bottom: 30px;
            background: linear-gradient(180deg, var(--lime), rgba(139, 92, 246, 0.9), transparent);
            opacity: 0.6;
        }

        .timeline-item {
            position: relative;
            padding-left: 52px;
            padding-bottom: 34px;
        }

        .timeline-item::before {
            content: "";
            position: absolute;
            left: 4px;
            top: 12px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            border: 2px solid var(--lime);
            background: var(--bg-body);
            box-shadow: 0 0 10px rgba(203, 255, 58, 0.7);
        }

        .timeline-panel {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 22px 26px;
            transition: border-color .3s, transform .3s;
        }

        .timeline-panel:hover {
            border-color: rgba(203, 255, 58, 0.4);
            transform: translateX(2px);
        }

        .timeline-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            margin-bottom: 6px;
            color: var(--text-sub);
            font-size: 13px;
        }

        .timeline-meta .tl-date {
            color: var(--lime);
            font-weight: 600;
        }

        .timeline-meta .tag-pill {
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            background: rgba(139, 92, 246, 0.16);
            color: #CEC1FF;
            font-size: 12px;
        }

        .timeline-panel h3 {
            font-size: 19px;
            margin-bottom: 8px;
        }

        .timeline-panel h3 a:hover {
            color: var(--lime);
        }

        .timeline-panel p {
            color: var(--text-sub);
            font-size: 14px;
            margin-bottom: 0;
        }

        /* 季度专题块 */
        .view-section {
            background: linear-gradient(180deg, var(--bg-body) 0%, #0C111B 100%);
        }

        .view-cover {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--line);
        }

        .view-cover img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
        }

        .view-cover .cover-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(10, 13, 20, 0.78);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(203, 255, 58, 0.25);
            color: var(--lime);
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
        }

        .view-content .lead-mark {
            color: var(--purple);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 2px;
            margin-bottom: 10px;
            display: block;
        }

        .view-content h2 {
            font-size: clamp(25px, 3vw, 34px);
            line-height: 1.45;
        }

        .view-content p {
            color: var(--text-sub);
        }

        .view-list li {
            display: flex;
            gap: 10px;
            color: #BCC6D4;
            padding: 7px 0;
            font-size: 14px;
        }

        .view-list li::before {
            content: "";
            flex: 0 0 auto;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--lime);
            margin-top: 10px;
            box-shadow: 0 0 7px rgba(203, 255, 58, 0.7);
        }

        .view-action {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            margin-top: 24px;
        }

        .view-aside-note {
            color: var(--text-sub);
            font-size: 13px;
            max-width: 310px;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-body);
        }

        .faq-accordion .accordion-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
        }

        .faq-accordion .accordion-item + .accordion-item {
            margin-top: 14px;
        }

        .faq-accordion .accordion-button {
            background: var(--surface);
            color: var(--text-main);
            font-weight: 600;
            font-size: 16px;
            line-height: 1.6;
            padding: 20px 84px 20px 22px;
            box-shadow: none;
            border: 0;
            position: relative;
            transition: color .2s;
        }

        .faq-accordion .accordion-button::after {
            background: none;
            width: auto;
            height: auto;
            font-weight: 300;
            content: "+";
            color: var(--lime);
            font-size: 25px;
            line-height: 1;
            margin-left: 0;
            position: absolute;
            right: 24px;
            top: 16px;
            transform: rotate(0deg);
            transition: transform .25s ease;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--surface);
            color: var(--lime);
            box-shadow: inset 3px 0 0 var(--lime);
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
        }

        .faq-accordion .accordion-button:focus {
            border-color: transparent;
            box-shadow: inset 3px 0 0 var(--lime), 0 0 0 4px rgba(203, 255, 58, 0.08);
        }

        .faq-accordion .accordion-body {
            padding: 4px 24px 22px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.9;
            background: var(--surface);
            border-top: 1px solid rgba(148, 163, 184, 0.08);
        }

        .faq-accordion .accordion-button:not(.collapsed) .faq-mark {
            color: var(--lime);
        }

        /* 联系转换区 */
        .contact-cta {
            padding: 30px 0 110px;
            background: linear-gradient(180deg, var(--bg-body) 0%, #0D111A 100%);
        }

        .contact-panel {
            position: relative;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow-deep);
            margin-top: 50px;
        }

        .contact-panel::before {
            content: "";
            position: absolute;
            width: 360px;
            height: 260px;
            border-radius: 50%;
            background: rgba(139, 92, 246, 0.10);
            filter: blur(90px);
            pointer-events: none;
            left: 10%;
            top: -120px;
        }

        .contact-info {
            background: linear-gradient(135deg, rgba(203, 255, 58, 0.05), rgba(139, 92, 246, 0.06));
            padding: 52px 40px;
            height: 100%;
            position: relative;
        }

        .contact-info h2 {
            font-size: 28px;
            line-height: 1.5;
            margin: 14px 0 16px;
        }

        .contact-info p {
            color: var(--text-sub);
            font-size: 15px;
            max-width: 500px;
        }

        .contact-points {
            margin: 28px 0 0;
        }

        .contact-points li {
            display: flex;
            gap: 14px;
            padding: 8px 0;
            color: #C6D0DE;
            font-size: 14px;
        }

        .contact-points li::before {
            content: "";
            flex: 0 0 auto;
            width: 16px;
            height: 2px;
            border-radius: 4px;
            background: var(--lime);
            margin-top: 13px;
        }

        .contact-form {
            padding: 44px 40px 48px;
            height: 100%;
        }

        .contact-form .form-label {
            font-size: 13px;
            font-weight: 600;
            color: #C4CFDD;
            margin-bottom: 8px;
        }

        .contact-form .form-control {
            min-height: 48px;
            border-radius: var(--radius-sm);
            background: var(--surface-2);
            border: 1px solid rgba(148, 163, 184, 0.22);
            color: var(--text-main);
            font-size: 14px;
            padding: 12px 16px;
            margin-bottom: 18px;
        }

        .contact-form .form-control:focus {
            background: var(--surface-2);
            border-color: rgba(203, 255, 58, 0.54);
            color: var(--text-main);
            box-shadow: 0 0 0 4px rgba(203, 255, 58, 0.12);
        }

        .contact-form textarea.form-control {
            min-height: 116px;
            resize: vertical;
        }

        .form-note {
            color: var(--text-sub);
            font-size: 12px;
            margin-top: 12px;
        }

        /* 页脚 */
        .site-footer {
            background: #070A10;
            color: #96A2B5;
            border-top: 1px solid rgba(148, 163, 184, 0.1);
            padding: 66px 0 0;
        }

        .site-footer .footer-brand p {
            color: #8B98AC;
            font-size: 14px;
            max-width: 380px;
        }

        .footer-title {
            color: var(--text-main);
            font-weight: 600;
            margin: 5px 0 14px;
            font-size: 15px;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #8B98AC;
            font-size: 14px;
        }

        .footer-links a:hover {
            color: var(--lime);
        }

        .footer-bottom {
            margin-top: 50px;
            padding: 22px 0;
            border-top: 1px solid rgba(148, 163, 184, 0.1);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: #758197;
        }

        .footer-logo-text {
            color: #dfe8f5;
            font-weight: 600;
        }

        /* 响应式 */
        @media (max-width: 1199px) {
            .news-category-hero {
                min-height: 430px;
                padding: 66px 0 58px;
            }

            body {
                font-size: 15px;
            }
        }

        @media (max-width: 991px) {
            .section {
                padding: 72px 0;
            }

            .navbar-collapse {
                background: rgba(10, 13, 20, 0.96);
                border: 1px solid rgba(148, 163, 184, 0.16);
                border-radius: 16px;
                padding: 16px;
                margin-top: 10px;
                box-shadow: 0 20px 35px rgba(0, 0, 0, 0.35);
            }

            .navbar-nav .nav-link {
                padding: 12px 12px !important;
                border-radius: 10px;
            }

            .navbar-nav .nav-link.active-link::after {
                left: 12px;
                right: 12px;
                bottom: 8px;
            }

            .header-cta {
                margin: 12px 0 0;
                display: flex;
                justify-content: center;
                width: 100%;
            }

            .focus-main,
            .focus-main .focus-cover {
                min-height: 360px;
            }

            .contact-info,
            .contact-form {
                padding: 34px 30px;
            }

            .topic-card {
                padding: 20px;
            }
        }

        @media (max-width: 767px) {
            .section {
                padding: 62px 0;
            }

            .news-category-hero {
                min-height: 400px;
                padding: 48px 0 46px;
                align-items: center;
            }

            .news-category-hero h1 {
                font-size: 31px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .hero-footline {
                gap: 10px;
                font-size: 13px;
            }

            .timeline-panel {
                padding: 18px 18px;
            }

            .timeline-panel h3 {
                font-size: 17px;
            }

            .section-heading {
                margin-bottom: 34px;
            }

            .contact-cta .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .site-container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .site-logo .logo-text {
                font-size: 19px;
            }

            .site-logo .logo-badge {
                width: 38px;
                height: 38px;
                font-size: 15px;
            }

            .topic-card ul li a {
                white-space: normal;
            }

            .contact-info,
            .contact-form {
                padding: 30px 20px;
            }

            .timeline-item {
                padding-left: 46px;
            }

            .timeline-panel {
                padding: 16px;
            }

            .timeline-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

            .view-cover img {
                aspect-ratio: 4 / 3;
            }
        }