/* roulang page: index */
:root {
            --bg-ink: #0A0D12;
            --bg-panel: #11161D;
            --bg-elev: #1A222B;
            --line: #222C36;
            --line-strong: #33404E;
            --gold: #F0A52B;
            --gold-bright: #FFC25E;
            --gold-deep: #C67F12;
            --text-hi: #F1F4F7;
            --text-mid: #A4B2BF;
            --text-low: #6E7C8A;
            --success: #34C98F;
            --warning: #FBC74A;
            --danger: #F2635F;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 0 0 1px rgba(240, 165, 43, 0.25), 0 12px 32px rgba(0, 0, 0, 0.35);
            --section-gap: 112px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-ink);
            color: var(--text-hi);
            line-height: 1.75;
            font-size: 1rem;
            font-variant-numeric: tabular-nums;
            overflow-x: hidden;
        }
        a {
            color: var(--gold);
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--gold-bright);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container-xxl {
            max-width: 1320px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-gap {
            padding: var(--section-gap) 0;
        }
        .section-title-wrap {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 40px;
        }
        .section-num {
            font-size: 0.875rem;
            font-weight: 700;
            color: var(--gold);
            letter-spacing: 0.04em;
            white-space: nowrap;
        }
        .section-line {
            width: 48px;
            height: 1px;
            background: var(--line-strong);
            flex-shrink: 0;
        }
        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2.25rem);
            font-weight: 700;
            margin: 0;
            color: var(--text-hi);
            letter-spacing: -0.01em;
        }
        .section-sub {
            color: var(--text-mid);
            font-size: 1rem;
            max-width: 640px;
            margin-top: 6px;
        }

        /* 导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(10, 13, 18, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--line);
            transition: background 0.3s ease, border-color 0.3s ease;
        }
        .site-header.scrolled {
            border-color: var(--line-strong);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 34px;
            height: 34px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .brand-text {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-hi);
            letter-spacing: -0.01em;
            line-height: 1.2;
            white-space: nowrap;
        }
        .brand-text .gold {
            color: var(--gold);
        }
        .nav-chips {
            display: flex;
            justify-content: center;
            gap: 4px;
            background: var(--bg-panel);
            padding: 4px;
            border-radius: 999px;
            border: 1px solid var(--line);
            overflow-x: auto;
            scrollbar-width: none;
        }
        .nav-chips::-webkit-scrollbar {
            display: none;
        }
        .nav-chip {
            display: inline-block;
            padding: 10px 24px;
            border-radius: 999px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-mid);
            background: transparent;
            border: none;
            white-space: nowrap;
            transition: all 0.25s ease;
            line-height: 1.2;
        }
        .nav-chip:hover {
            color: var(--text-hi);
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-chip.active {
            background: var(--gold);
            color: var(--bg-ink);
            font-weight: 700;
        }
        .nav-chip.active:hover {
            background: var(--gold-bright);
            color: var(--bg-ink);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            background: var(--gold);
            color: var(--bg-ink);
            border-radius: 10px;
            font-weight: 700;
            font-size: 0.875rem;
            transition: all 0.25s ease;
            border: none;
            white-space: nowrap;
        }
        .header-cta:hover {
            background: var(--gold-bright);
            color: var(--bg-ink);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(240, 165, 43, 0.25);
        }
        .header-cta svg {
            width: 18px;
            height: 18px;
        }

        /* 按钮 */
        .btn-gold {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--gold);
            color: var(--bg-ink);
            border: 1px solid transparent;
            border-radius: 10px;
            padding: 14px 28px;
            font-weight: 700;
            font-size: 0.9375rem;
            line-height: 1.4;
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .btn-gold:hover {
            background: var(--gold-bright);
            color: var(--bg-ink);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(240, 165, 43, 0.25);
        }
        .btn-gold:active {
            transform: translateY(0);
            background: var(--gold-deep);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--text-hi);
            border: 1px solid var(--line-strong);
            border-radius: 10px;
            padding: 14px 28px;
            font-weight: 600;
            font-size: 0.9375rem;
            line-height: 1.4;
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .btn-ghost:hover {
            border-color: var(--gold);
            color: var(--gold);
            transform: translateY(-2px);
        }
        .btn-ghost:active {
            transform: translateY(0);
        }
        .btn-group-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* Hero */
        .hero {
            position: relative;
            padding: 180px 0 72px;
            background: linear-gradient(rgba(10, 13, 18, 0.72), rgba(10, 13, 18, 0.85)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            border-bottom: 1px solid var(--line);
        }
        .hero-inner {
            display: flex;
            align-items: center;
            gap: 48px;
            position: relative;
            z-index: 1;
        }
        .hero-text-col {
            flex: 0 0 58%;
            max-width: 58%;
        }
        .hero-visual-col {
            flex: 0 0 42%;
            max-width: 42%;
        }
        .hero h1 {
            font-size: clamp(2rem, 4vw, 3.25rem);
            font-weight: 750;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin: 0 0 16px;
            color: var(--text-hi);
        }
        .hero h1 .gold {
            color: var(--gold);
        }
        .hero-subtitle {
            font-size: clamp(1rem, 1.4vw, 1.125rem);
            color: var(--text-mid);
            line-height: 1.65;
            margin-bottom: 24px;
            max-width: 520px;
        }
        .hero-meta {
            margin-top: 16px;
            font-size: 0.875rem;
            color: var(--text-low);
        }
        .hero-visual {
            border-radius: var(--radius-lg);
            border: 1px solid var(--line);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .hero-visual img {
            width: 100%;
            display: block;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        /* 数据条 */
        .data-bar {
            border-bottom: 1px solid var(--line);
            background: var(--bg-ink);
        }
        .data-bar-inner {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            padding: 36px 0;
        }
        .data-item {
            text-align: center;
            border-right: 1px solid var(--line);
            padding: 0 16px;
        }
        .data-item:last-child {
            border-right: none;
        }
        .data-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.2;
        }
        .data-label {
            font-size: 13px;
            color: var(--text-low);
            margin-top: 4px;
        }

        /* 核心体验 */
        .features-section {
            background: var(--bg-ink);
        }
        .features-layout {
            display: grid;
            grid-template-columns: 0.85fr 1.15fr;
            gap: 56px;
            align-items: start;
        }
        .features-intro h3 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .features-intro p {
            color: var(--text-mid);
            margin-bottom: 16px;
        }
        .features-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--gold);
            border-bottom: 1px solid rgba(240, 165, 43, 0.3);
            padding-bottom: 2px;
        }
        .features-link:hover {
            color: var(--gold-bright);
            border-color: var(--gold);
        }
        .features-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-panel);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all 0.25s ease;
        }
        .feature-card:hover {
            border-color: rgba(240, 165, 43, 0.45);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            border: 1px solid var(--line-strong);
            background: rgba(240, 165, 43, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }
        .feature-icon svg {
            width: 22px;
            height: 22px;
            stroke: var(--gold);
            fill: none;
            stroke-width: 1.6;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .feature-card h4 {
            font-size: 1.125rem;
            font-weight: 650;
            margin-bottom: 6px;
            line-height: 1.3;
        }
        .feature-card p {
            font-size: 0.875rem;
            color: var(--text-mid);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .feature-divider {
            height: 1px;
            background: var(--line);
            margin-top: auto;
        }

        /* 功能预览 轮播 */
        .preview-section {
            background: var(--bg-ink);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .preview-carousel {
            position: relative;
        }
        .preview-slide {
            display: flex;
            align-items: center;
            gap: 48px;
        }
        .preview-text-col {
            flex: 0 0 42%;
            max-width: 42%;
        }
        .preview-text-col h3 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .preview-text-col p {
            color: var(--text-mid);
            margin-bottom: 16px;
        }
        .preview-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .preview-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 0;
            color: var(--text-hi);
            font-size: 0.9375rem;
        }
        .preview-list li::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--gold);
            flex-shrink: 0;
        }
        .preview-visual-col {
            flex: 0 0 58%;
            max-width: 58%;
        }
        .preview-visual {
            border-radius: 20px;
            border: 1px solid var(--line);
            overflow: hidden;
            aspect-ratio: 16/10;
            background: var(--bg-panel);
            position: relative;
        }
        .preview-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .preview-visual:hover img {
            transform: scale(1.03);
        }
        .carousel-indicators {
            position: static;
            bottom: auto;
            margin: 32px 0 0;
            display: flex;
            justify-content: center;
            gap: 8px;
        }
        .carousel-indicators [data-bs-target] {
            width: 40px;
            height: 3px;
            border-radius: 3px;
            background: var(--line-strong);
            border: none;
            opacity: 1;
            transition: width 0.3s ease, background 0.3s ease;
            margin: 0;
        }
        .carousel-indicators .active {
            width: 80px;
            background: var(--gold);
        }
        .carousel-control-prev,
        .carousel-control-next {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            border: 1px solid transparent;
            background: transparent;
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 1;
            transition: all 0.25s ease;
            z-index: 2;
        }
        .carousel-control-prev {
            left: -60px;
        }
        .carousel-control-next {
            right: -60px;
        }
        .carousel-control-prev:hover,
        .carousel-control-next:hover {
            border-color: rgba(240, 165, 43, 0.5);
            background: rgba(240, 165, 43, 0.06);
        }
        .carousel-control-prev .carousel-control-prev-icon,
        .carousel-control-next .carousel-control-next-icon {
            width: 20px;
            height: 20px;
            filter: invert(80%) sepia(30%) saturate(3000%) hue-rotate(5deg);
        }

        /* 系统要求 */
        .sysreq-section {
            background: var(--bg-ink);
        }
        .sysreq-tabs {
            display: flex;
            gap: 4px;
            background: var(--bg-panel);
            padding: 4px;
            border-radius: 999px;
            border: 1px solid var(--line);
            width: fit-content;
            margin: 0 auto 36px;
        }
        .sysreq-tab {
            padding: 12px 28px;
            border-radius: 999px;
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-mid);
            background: transparent;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .sysreq-tab.active {
            background: var(--gold);
            color: var(--bg-ink);
            font-weight: 700;
        }
        .sysreq-tab:hover:not(.active) {
            color: var(--text-hi);
        }
        .table-wrap {
            background: var(--bg-panel);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            padding: 8px 24px;
        }
        .req-table {
            width: 100%;
            border-collapse: collapse;
        }
        .req-table th {
            font-size: 0.8125rem;
            font-weight: 700;
            color: var(--gold);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            text-align: left;
            padding: 18px 12px;
            border-bottom: 1px solid var(--line);
            background: transparent;
        }
        .req-table td {
            padding: 14px 12px;
            border-bottom: 1px solid var(--line);
            color: var(--text-hi);
            line-height: 1.5;
            background: transparent;
        }
        .req-table tr:last-child td {
            border-bottom: none;
        }
        .req-table td:first-child {
            color: var(--text-mid);
            font-weight: 600;
            width: 30%;
        }

        /* 评价墙 */
        .reviews-section {
            background: var(--bg-ink);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .reviews-layout {
            display: grid;
            grid-template-columns: 0.7fr 0.3fr;
            gap: 24px;
            align-items: center;
        }
        .review-large {
            background: var(--bg-panel);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 32px;
            position: relative;
            transition: all 0.25s ease;
        }
        .review-large:hover {
            border-color: rgba(240, 165, 43, 0.45);
            box-shadow: var(--shadow-md);
        }
        .review-quote-mark {
            font-size: 3.5rem;
            color: var(--gold);
            font-family: Georgia, serif;
            line-height: 0.8;
            margin-bottom: 8px;
        }
        .review-stars {
            color: var(--gold);
            font-size: 1rem;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }
        .review-text {
            font-size: 1.0625rem;
            color: var(--text-hi);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .review-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--gold);
            color: var(--bg-ink);
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .review-name {
            font-weight: 600;
            color: var(--text-hi);
        }
        .review-source {
            font-size: 0.8125rem;
            color: var(--text-low);
        }
        .review-small-card {
            background: var(--bg-panel);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 20px;
            margin-bottom: 16px;
            transition: all 0.25s ease;
        }
        .review-small-card:last-child {
            margin-bottom: 0;
        }
        .review-small-card:hover {
            border-color: rgba(240, 165, 43, 0.35);
        }
        .review-small-card .review-text {
            font-size: 0.9375rem;
            margin-bottom: 10px;
        }
        .review-small-card .review-user {
            gap: 10px;
        }
        .review-small-card .review-avatar {
            width: 32px;
            height: 32px;
            font-size: 0.8125rem;
        }

        /* 下载区 */
        .download-section {
            background: linear-gradient(rgba(10, 13, 18, 0.8), rgba(10, 13, 18, 0.9)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border-bottom: 1px solid var(--line);
            text-align: center;
        }
        .download-section .container-xxl {
            max-width: 900px;
        }
        .download-section h2 {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .download-section h2 .gold {
            color: var(--gold);
        }
        .download-sub {
            color: var(--text-mid);
            font-size: 1rem;
            margin-bottom: 32px;
        }
        .download-buttons {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 16px;
        }
        .download-note {
            font-size: 0.8125rem;
            color: var(--text-low);
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-ink);
        }
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--line) !important;
            margin-bottom: 0;
        }
        .accordion-button {
            background: transparent;
            color: var(--text-hi);
            font-weight: 600;
            font-size: 1.0625rem;
            padding: 20px 0;
            border: none;
            box-shadow: none !important;
            position: relative;
        }
        .accordion-button:hover {
            color: var(--gold);
            background: transparent;
        }
        .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--gold);
        }
        .accordion-button::after {
            background-image: none;
            content: '+';
            font-family: var(--font-sans);
            font-size: 1.5rem;
            font-weight: 300;
            color: var(--gold);
            transform: rotate(0deg);
            transition: transform 0.3s ease;
            margin-left: auto;
            line-height: 1;
        }
        .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
        }
        .accordion-body {
            padding: 0 0 20px;
            color: var(--text-mid);
            font-size: 0.9375rem;
            line-height: 1.7;
        }
        .faq-note {
            text-align: center;
            color: var(--text-low);
            font-size: 0.875rem;
            margin-top: 24px;
        }

        /* 资讯 CMS */
        .news-section {
            background: var(--bg-ink);
            border-top: 1px solid var(--line);
        }
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .news-card-large {
            background: var(--bg-panel);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
        }
        .news-card-large:hover {
            border-color: rgba(240, 165, 43, 0.45);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .news-card-large .news-img {
            aspect-ratio: 16/9;
            width: 100%;
            overflow: hidden;
        }
        .news-card-large .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-card-large:hover .news-img img {
            transform: scale(1.03);
        }
        .news-card-body {
            padding: 20px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .news-card-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .news-card-body p {
            color: var(--text-mid);
            font-size: 0.9375rem;
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.8125rem;
            color: var(--text-low);
        }
        .news-small-card {
            background: var(--bg-panel);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 16px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: all 0.25s ease;
            margin-bottom: 16px;
        }
        .news-small-card:last-child {
            margin-bottom: 0;
        }
        .news-small-card:hover {
            border-color: rgba(240, 165, 43, 0.45);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .news-small-img {
            width: 112px;
            height: 74px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
        }
        .news-small-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-small-card:hover .news-small-img img {
            transform: scale(1.03);
        }
        .news-small-body {
            flex: 1;
            min-width: 0;
        }
        .news-small-body h4 {
            font-size: 0.9375rem;
            font-weight: 650;
            line-height: 1.4;
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .news-small-body p {
            font-size: 0.8125rem;
            color: var(--text-mid);
            line-height: 1.5;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-empty {
            grid-column: 1 / -1;
            background: var(--bg-panel);
            border: 1px dashed var(--line-strong);
            border-radius: var(--radius-lg);
            padding: 64px 24px;
            text-align: center;
            color: var(--text-low);
        }
        .news-empty-icon {
            font-size: 2.5rem;
            margin-bottom: 8px;
            color: var(--text-low);
        }
        .news-empty p {
            margin-bottom: 0;
            font-size: 0.9375rem;
        }
        .badge-cat {
            display: inline-block;
            background: rgba(240, 165, 43, 0.08);
            border: 1px solid rgba(240, 165, 43, 0.4);
            color: var(--gold);
            border-radius: 999px;
            padding: 3px 12px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
        }
        .news-link {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--gold);
            border-bottom: 1px solid rgba(240, 165, 43, 0.3);
            padding-bottom: 1px;
        }
        .news-link:hover {
            border-color: var(--gold);
        }

        /* 徽章通用 */
        .badge-status {
            display: inline-block;
            background: rgba(52, 201, 143, 0.1);
            border: 1px solid rgba(52, 201, 143, 0.3);
            color: var(--success);
            border-radius: 999px;
            padding: 3px 10px;
            font-size: 12px;
        }
        .badge-warn {
            display: inline-block;
            background: rgba(251, 199, 74, 0.1);
            border: 1px solid rgba(251, 199, 74, 0.3);
            color: var(--warning);
            border-radius: 999px;
            padding: 3px 10px;
            font-size: 12px;
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-ink);
            border-top: 1px solid var(--line);
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-desc {
            font-size: 0.875rem;
            color: var(--text-mid);
            line-height: 1.6;
            margin-bottom: 16px;
            max-width: 260px;
        }
        .footer-download-icon {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--gold);
            font-size: 0.875rem;
            font-weight: 500;
        }
        .footer-download-icon:hover {
            color: var(--gold-bright);
        }
        .footer-title {
            font-size: 0.875rem;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 0.875rem;
            color: var(--text-mid);
            transition: all 0.25s ease;
        }
        .footer-links a:hover {
            color: var(--gold);
        }
        .footer-bottom {
            border-top: 1px solid var(--line);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-copy {
            font-size: 0.8125rem;
            color: var(--text-low);
        }
        .footer-legal {
            font-size: 0.8125rem;
            color: var(--text-low);
        }

        /* 入场动画 */
        .fade-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }
        @media (prefers-reduced-motion: reduce) {
            * {
                animation: none !important;
                transition: none !important;
            }
            .fade-up {
                opacity: 1;
                transform: none;
            }
            html {
                scroll-behavior: auto;
            }
        }

        /* 响应式 */
        @media (max-width: 1199.98px) {
            .carousel-control-prev {
                left: -12px;
            }
            .carousel-control-next {
                right: -12px;
            }
        }
        @media (max-width: 991.98px) {
            :root {
                --section-gap: 80px;
            }
            .hero {
                padding-top: 140px;
                padding-bottom: 56px;
            }
            .hero-inner {
                flex-direction: column;
                gap: 32px;
            }
            .hero-text-col,
            .hero-visual-col {
                flex: 0 0 100%;
                max-width: 100%;
            }
            .features-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .preview-slide {
                flex-direction: column;
                gap: 24px;
            }
            .preview-text-col,
            .preview-visual-col {
                flex: 0 0 100%;
                max-width: 100%;
            }
            .reviews-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .header-cta .header-cta-text {
                display: none;
            }
            .header-cta {
                padding: 10px 14px;
            }
            .brand-text {
                font-size: 15px;
            }
        }
        @media (max-width: 767.98px) {
            .header-inner {
                height: 60px;
                gap: 12px;
            }
            .brand-icon {
                width: 28px;
                height: 28px;
            }
            .brand-text {
                font-size: 14px;
            }
            .nav-chips {
                order: 3;
                position: absolute;
                top: 60px;
                left: 12px;
                right: 12px;
                justify-content: flex-start;
                border-radius: 999px;
                padding: 4px;
                background: rgba(17, 22, 29, 0.95);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
            }
            .nav-chip {
                padding: 8px 16px;
                font-size: 0.8125rem;
            }
            .header-cta svg {
                width: 16px;
                height: 16px;
            }
            .hero {
                padding-top: 120px;
                padding-bottom: 48px;
            }
            .hero h1 {
                font-size: 1.6rem;
                line-height: 1.2;
            }
            .hero-subtitle {
                font-size: 0.9375rem;
            }
            .data-bar-inner {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                padding: 24px 0;
            }
            .data-item {
                border: none;
                padding: 12px 8px;
                background: var(--bg-panel);
                border-radius: var(--radius-md);
                border: 1px solid var(--line);
            }
            .data-num {
                font-size: 22px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .section-title-wrap {
                flex-wrap: wrap;
                margin-bottom: 24px;
            }
            .preview-controls-mobile {
                display: flex;
            }
            .carousel-control-prev,
            .carousel-control-next {
                display: none;
            }
            .sysreq-tabs {
                width: 100%;
                justify-content: center;
                margin-bottom: 24px;
            }
            .sysreq-tab {
                padding: 10px 18px;
                font-size: 0.8125rem;
            }
            .table-wrap {
                padding: 0 16px;
                overflow-x: auto;
            }
            .req-table td,
            .req-table th {
                padding: 12px 8px;
                font-size: 0.875rem;
            }
            .news-small-card {
                flex-direction: row;
                align-items: flex-start;
            }
            .news-small-img {
                width: 90px;
                height: 60px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .btn-gold,
            .btn-ghost {
                padding: 12px 20px;
                font-size: 0.875rem;
                width: 100%;
                justify-content: center;
            }
            .btn-group-row {
                flex-direction: column;
            }
            .download-buttons {
                flex-direction: column;
                width: 100%;
            }
            .download-buttons .btn-gold,
            .download-buttons .btn-ghost {
                width: 100%;
            }
        }
        @media (max-width: 575.98px) {
            .container-xxl {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero {
                padding-top: 110px;
            }
            .hero h1 {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .features-intro h3 {
                font-size: 1.35rem;
            }
            .nav-chips {
                left: 8px;
                right: 8px;
            }
            .review-large {
                padding: 24px;
            }
            .review-text {
                font-size: 0.9375rem;
            }
            .news-card-body h3 {
                font-size: 1.0625rem;
            }
            .news-small-body h4 {
                white-space: normal;
                display: -webkit-box;
                -webkit-line-clamp: 2;
                -webkit-box-orient: vertical;
            }
        }

/* roulang page: category1 */
:root {
            --bg-ink: #0A0D12;
            --bg-panel: #11161D;
            --bg-elev: #1A222B;
            --line: #222C36;
            --line-strong: #33404E;
            --gold: #F0A52B;
            --gold-bright: #FFC25E;
            --gold-deep: #C67F12;
            --text-hi: #F1F4F7;
            --text-mid: #A4B2BF;
            --text-low: #6E7C8A;
            --success: #34C98F;
            --warning: #FBC74A;
            --danger: #F2635F;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, .25);
            --shadow-md: 0 12px 32px rgba(0, 0, 0, .35);
            --glow-gold: 0 0 0 1px rgba(240, 165, 43, .25);
            --shadow-gold: 0 10px 24px rgba(240, 165, 43, .25);
            --transition: .25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg-ink);
            color: var(--text-hi);
            font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            font-size: 1rem;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            font-variant-numeric: tabular-nums;
            padding-top: 72px;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        button,
        input,
        select,
        textarea {
            font: inherit;
            color: inherit;
        }

        .container-xxl {
            max-width: 1320px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-block {
            padding: 112px 0;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 13, 18, .88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--line);
            transition: background var(--transition), box-shadow var(--transition);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 72px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            display: flex;
            align-items: center;
        }

        .brand-text {
            font-size: 18px;
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.2;
            white-space: nowrap;
        }

        .brand-text .gold {
            color: var(--gold);
        }

        .nav-chips {
            display: flex;
            gap: 4px;
            background: var(--bg-panel);
            border: 1px solid var(--line);
            padding: 4px;
            border-radius: 999px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

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

        .nav-chip {
            padding: 9px 22px;
            border-radius: 999px;
            color: var(--text-mid);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .nav-chip:hover {
            color: var(--text-hi);
        }

        .nav-chip.active {
            background: var(--gold);
            color: var(--bg-ink);
            font-weight: 700;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--gold);
            color: var(--bg-ink);
            border-radius: 10px;
            padding: 10px 20px;
            font-weight: 700;
            font-size: 14px;
            border: none;
            cursor: pointer;
            flex-shrink: 0;
            transition: all var(--transition);
        }

        .header-cta svg {
            width: 18px;
            height: 18px;
        }

        .header-cta:hover {
            background: var(--gold-bright);
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold);
            color: var(--bg-ink);
        }

        .header-cta:active {
            transform: translateY(0);
            box-shadow: none;
            background: var(--gold-deep);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            padding: 140px 0 72px;
            background-size: cover;
            background-position: center;
            position: relative;
            border-bottom: 1px solid var(--line-strong);
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 13, 18, .82) 0%, rgba(10, 13, 18, .68) 100%);
        }

        .page-hero .container-xxl {
            position: relative;
            z-index: 2;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-mid);
        }

        .breadcrumb-nav a {
            color: var(--text-mid);
            transition: color var(--transition);
        }

        .breadcrumb-nav a:hover {
            color: var(--gold);
        }

        .breadcrumb-nav .current {
            color: var(--text-hi);
        }

        .page-hero-content {
            max-width: 860px;
            margin-top: 36px;
        }

        .page-hero-content h1 {
            font-size: clamp(2rem, 4vw, 3.25rem);
            font-weight: 750;
            line-height: 1.18;
            letter-spacing: -0.02em;
            color: var(--text-hi);
        }

        .page-hero-content h1 .gold {
            color: var(--gold);
        }

        .page-hero-sub {
            font-size: 1.125rem;
            color: var(--text-mid);
            max-width: 680px;
            margin-top: 18px;
            line-height: 1.8;
        }

        .page-hero-line {
            width: 80px;
            height: 2px;
            background: var(--gold);
            margin-top: 36px;
        }

        /* ===== Block Heading ===== */
        .block-heading {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 40px;
        }

        .section-index {
            font-size: 1rem;
            font-weight: 800;
            color: var(--gold);
            letter-spacing: .08em;
            font-variant-numeric: tabular-nums;
            line-height: 1;
        }

        .block-heading h2 {
            font-size: clamp(1.5rem, 2.5vw, 2.25rem);
            font-weight: 700;
            line-height: 1.25;
            margin: 0;
            color: var(--text-hi);
        }

        .block-heading.center {
            justify-content: center;
        }

        /* ===== Category Main ===== */
        .category-main {
            padding: 96px 0 80px;
        }

        .content-block {
            margin-bottom: 72px;
        }

        .content-block:last-child {
            margin-bottom: 0;
        }

        .content-block>p {
            color: var(--text-mid);
            line-height: 1.9;
            margin-bottom: 1.25em;
        }

        .content-block>p strong {
            color: var(--text-hi);
            font-weight: 600;
        }

        .content-block img {
            width: 100%;
            height: auto;
            border-radius: 16px;
            border: 1px solid var(--line);
            margin: 24px 0 28px;
            box-shadow: var(--shadow-sm);
        }

        .feature-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
        }

        .feature-list li {
            padding-left: 28px;
            position: relative;
            margin-bottom: 12px;
            color: var(--text-hi);
            line-height: 1.7;
        }

        .feature-list li::before {
            content: "▹";
            position: absolute;
            left: 0;
            color: var(--gold);
            font-weight: 700;
        }

        /* ===== Sidebar ===== */
        .sidebar-wrap {
            position: sticky;
            top: 96px;
        }

        .sidebar-panel {
            background: var(--bg-panel);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }

        .sidebar-title {
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: 20px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--line);
            position: relative;
            color: var(--text-hi);
        }

        .sidebar-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 40px;
            height: 2px;
            background: var(--gold);
        }

        .sidebar-panel .btn-gold,
        .sidebar-panel .btn-ghost {
            width: 100%;
            justify-content: center;
            margin-bottom: 12px;
        }

        .sidebar-panel .btn-gold:last-of-type,
        .sidebar-panel .btn-ghost:last-of-type {
            margin-bottom: 0;
        }

        .mini-news {
            margin-top: 28px;
            padding-top: 24px;
            border-top: 1px solid var(--line);
        }

        .mini-news-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--gold);
            letter-spacing: .05em;
            margin-bottom: 12px;
        }

        .mini-news a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding: 13px 0;
            border-bottom: 1px solid var(--line);
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.5;
            transition: all var(--transition);
        }

        .mini-news a:last-child {
            border-bottom: none;
        }

        .mini-news a:hover {
            color: var(--gold);
            padding-left: 4px;
        }

        .mini-news time {
            color: var(--text-low);
            font-size: 13px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* ===== Buttons ===== */
        .btn-gold,
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border-radius: 10px;
            padding: 14px 28px;
            font-weight: 700;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            line-height: 1.4;
        }

        .btn-gold {
            background: var(--gold);
            color: var(--bg-ink);
        }

        .btn-gold:hover {
            background: var(--gold-bright);
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold);
            color: var(--bg-ink);
        }

        .btn-gold:active {
            transform: translateY(0);
            box-shadow: none;
            background: var(--gold-deep);
            color: var(--bg-ink);
        }

        .btn-ghost {
            background: transparent;
            border: 1px solid var(--line-strong);
            color: var(--text-hi);
        }

        .btn-ghost:hover {
            border-color: var(--gold);
            color: var(--gold);
            transform: translateY(-2px);
        }

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

        /* ===== Scenario ===== */
        .scenario-section {
            background: var(--bg-panel);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .scenario-card {
            background: var(--bg-ink);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            height: 100%;
            transition: all var(--transition);
        }

        .scenario-card:hover {
            border-color: rgba(240, 165, 43, .45);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .scenario-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            border: 1px solid rgba(240, 165, 43, .35);
            background: rgba(240, 165, 43, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            margin-bottom: 18px;
        }

        .scenario-icon svg {
            width: 22px;
            height: 22px;
        }

        .scenario-card h3 {
            font-size: 1.125rem;
            font-weight: 650;
            margin-bottom: 10px;
            color: var(--text-hi);
        }

        .scenario-card p {
            color: var(--text-mid);
            font-size: 0.95rem;
            line-height: 1.75;
            margin: 0;
        }

        /* ===== Process ===== */
        .process-step {
            position: relative;
            padding: 28px 24px 24px;
            border-left: 1px solid var(--line-strong);
            height: 100%;
            transition: all var(--transition);
        }

        .process-step:hover {
            border-left-color: var(--gold);
        }

        .step-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

        .process-step h3 {
            font-size: 1.05rem;
            font-weight: 650;
            margin-bottom: 8px;
            color: var(--text-hi);
        }

        .process-step p {
            color: var(--text-mid);
            font-size: 0.925rem;
            line-height: 1.7;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-section .block-heading {
            margin-bottom: 32px;
        }

        .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--line);
            border-radius: 0 !important;
        }

        .accordion-item:first-of-type {
            border-top: 1px solid var(--line);
        }

        .accordion-button {
            background: transparent;
            color: var(--text-hi);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 22px 0;
            box-shadow: none;
            border: none;
            position: relative;
            transition: color var(--transition);
        }

        .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--gold);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid rgba(240, 165, 43, .25);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        .accordion-button::after {
            background: none;
            content: "+";
            font-size: 1.5rem;
            font-weight: 300;
            color: var(--text-mid);
            width: auto;
            height: auto;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform var(--transition), color var(--transition);
            line-height: 1;
        }

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

        .accordion-body {
            padding: 0 40px 22px 0;
            color: var(--text-mid);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* ===== CTA Bar ===== */
        .cta-bar {
            padding: 72px 0 112px;
        }

        .cta-bar-inner {
            background: var(--bg-panel);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 44px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .cta-bar-inner::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--gold), transparent);
        }

        .cta-bar h3 {
            font-size: clamp(1.35rem, 2.2vw, 1.75rem);
            font-weight: 700;
            margin: 0;
            max-width: 520px;
            color: var(--text-hi);
            line-height: 1.35;
        }

        .cta-bar h3 .gold {
            color: var(--gold);
        }

        /* ===== Footer ===== */
        .site-footer {
            border-top: 1px solid var(--line);
            background: var(--bg-ink);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            padding: 72px 0 48px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .brand-text {
            font-size: 17px;
            font-weight: 800;
        }

        .footer-desc {
            color: var(--text-mid);
            font-size: 0.95rem;
            line-height: 1.8;
            max-width: 320px;
            margin-bottom: 20px;
        }

        .footer-download-icon {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--gold);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
        }

        .footer-download-icon:hover {
            color: var(--gold-bright);
        }

        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 18px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

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

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

        .footer-bottom {
            border-top: 1px solid var(--line);
            padding: 24px 0;
            text-align: center;
            color: var(--text-low);
            font-size: 14px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }

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

            .category-main {
                padding: 64px 0 56px;
            }

            .sidebar-wrap {
                position: static;
                margin-top: 48px;
            }

            .header-inner {
                gap: 12px;
            }

            .brand-text {
                font-size: 16px;
            }

            .nav-chip {
                padding: 8px 18px;
                font-size: 13px;
            }

            .page-hero {
                padding: 120px 0 56px;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 64px;
            }

            .header-inner {
                min-height: 64px;
            }

            .header-cta {
                padding: 8px 14px;
            }

            .header-cta-text {
                display: none;
            }

            .nav-chips {
                max-width: 100%;
            }

            .navbar-scroll {
                overflow-x: auto;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding: 48px 0 32px;
            }

            .cta-bar {
                padding: 56px 0 72px;
            }

            .cta-bar-inner {
                padding: 32px 28px;
            }

            .cta-bar h3 {
                font-size: 1.25rem;
            }
        }

        @media (max-width: 520px) {
            .page-hero-content h1 {
                font-size: 1.75rem;
            }

            .page-hero-sub {
                font-size: 1rem;
            }

            .block-heading {
                flex-wrap: wrap;
                gap: 10px;
            }

            .block-heading h2 {
                font-size: 1.35rem;
            }

            .accordion-button {
                font-size: 0.95rem;
                padding: 18px 0;
            }

            .accordion-button::after {
                font-size: 1.3rem;
            }

            .cta-bar-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-bar-inner .btn-gold {
                width: 100%;
                justify-content: center;
            }

            .mini-news a {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: article */
:root {
    --bg-ink: #0A0D12;
    --bg-panel: #11161D;
    --bg-elev: #1A222B;
    --line: #222C36;
    --line-strong: #33404E;
    --gold: #F0A52B;
    --gold-bright: #FFC25E;
    --gold-deep: #C67F12;
    --text-hi: #F1F4F7;
    --text-mid: #A4B2BF;
    --text-low: #6E7C8A;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow: 0 4px 16px rgba(0, 0, 0, .25);
    --shadow-hover: 0 12px 32px rgba(0, 0, 0, .35);
    --font-cn: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-cn);
    background: var(--bg-ink);
    color: var(--text-hi);
    line-height: 1.7;
    font-variant-numeric: tabular-nums;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: all .25s ease;
}

button {
    font-family: inherit;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 3px;
    border-radius: 8px;
}

.container-xxl {
    max-width: 1320px;
    width: 100%;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ---------- 导航 ---------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 13, 18, .88);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.brand-icon svg {
    display: block;
}

.brand-text {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-hi);
    letter-spacing: -.01em;
    white-space: nowrap;
}

.brand-text .gold {
    color: var(--gold);
}

.nav-chips {
    display: flex;
    gap: 8px;
    background: var(--bg-panel);
    padding: 4px;
    border-radius: 999px;
    border: 1px solid var(--line);
}

.nav-chip {
    padding: 10px 24px;
    border-radius: 999px;
    color: var(--text-mid);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    transition: all .25s ease;
}

.nav-chip:hover {
    color: var(--text-hi);
    background: var(--bg-elev);
}

.nav-chip.active {
    background: var(--gold);
    color: var(--bg-ink);
    font-weight: 700;
}

.nav-chip.active:hover {
    background: var(--gold-bright);
    color: var(--bg-ink);
}

.header-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 10px;
    background: var(--gold);
    color: var(--bg-ink);
    font-weight: 700;
    font-size: 14px;
    text-decoration: none;
    border: none;
    transition: all .25s ease;
    flex-shrink: 0;
}

.header-cta:hover {
    background: var(--gold-bright);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(240, 165, 43, .25);
}

.header-cta:active {
    transform: translateY(0);
    background: var(--gold-deep);
}

.header-cta svg {
    width: 18px;
    height: 18px;
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    border: 1px solid transparent;
    transition: all .25s ease;
    cursor: pointer;
    font-family: inherit;
    line-height: 1.4;
}

.btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.btn-gold {
    background: var(--gold);
    color: var(--bg-ink);
}

.btn-gold:hover {
    background: var(--gold-bright);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(240, 165, 43, .25);
}

.btn-gold:active {
    transform: translateY(0);
    background: var(--gold-deep);
}

.btn-ghost {
    background: transparent;
    border-color: var(--line-strong);
    color: var(--text-hi);
}

.btn-ghost:hover {
    border-color: var(--gold);
    color: var(--gold);
    transform: translateY(-2px);
}

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

/* ---------- 文章头图 ---------- */
.article-hero {
    min-height: 55vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 140px 24px 64px;
    position: relative;
    background-image: linear-gradient(180deg, rgba(10, 13, 18, .85) 0%, rgba(10, 13, 18, .62) 55%, rgba(10, 13, 18, .94) 100%), url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
}

.article-hero-inner {
    position: relative;
    z-index: 1;
    max-width: 860px;
    text-align: center;
    margin: 0 auto;
}

.article-breadcrumb {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 14px;
    color: var(--text-mid);
    margin-bottom: 24px;
}

.article-breadcrumb a {
    color: var(--text-mid);
    text-decoration: none;
    transition: color .25s ease;
}

.article-breadcrumb a:hover {
    color: var(--gold);
}

.breadcrumb-sep {
    color: var(--text-low);
}

.article-breadcrumb .current {
    color: var(--text-hi);
    max-width: 420px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.article-hero h1 {
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 750;
    line-height: 1.18;
    letter-spacing: -.02em;
    color: var(--text-hi);
    margin: 0 auto;
    max-width: 820px;
    text-wrap: balance;
}

.article-hero-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-top: 28px;
    font-size: 14px;
    color: var(--text-mid);
    flex-wrap: wrap;
}

.badge-category {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: 999px;
    border: 1px solid rgba(240, 165, 43, .4);
    background: rgba(240, 165, 43, .08);
    color: var(--gold);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .02em;
}

.meta-dot {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--text-low);
    display: inline-block;
    flex-shrink: 0;
}

.article-hero-meta time {
    color: var(--text-mid);
}

/* ---------- 正文阅读 ---------- */
.article-main {
    padding: 72px 0 40px;
}

.article-wrap {
    max-width: 820px;
    margin: 0 auto;
}

.section-label {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
}

.section-num {
    color: var(--gold);
    font-weight: 800;
    font-size: 15px;
    letter-spacing: .05em;
    white-space: nowrap;
}

.section-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-hi);
    white-space: nowrap;
}

.section-line {
    flex: 1;
    height: 1px;
    background: var(--line-strong);
}

.article-body {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-mid);
}

.article-body h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-hi);
    margin: 2.25rem 0 1rem;
    padding-top: 1rem;
    border-top: 2px solid var(--gold);
    display: inline-block;
    line-height: 1.3;
}

.article-body h3 {
    font-size: 1.25rem;
    font-weight: 650;
    color: var(--text-hi);
    margin: 1.75rem 0 .75rem;
    line-height: 1.4;
}

.article-body p {
    margin-bottom: 1.5em;
    line-height: 1.8;
}

.article-body blockquote {
    border-left: 4px solid var(--gold);
    background: var(--bg-panel);
    padding: 20px 24px;
    border-radius: 0 12px 12px 0;
    color: var(--text-mid);
    margin: 1.5rem 0;
}

.article-body img {
    width: 100%;
    border-radius: 12px;
    margin: 1.5rem 0;
}

.article-body figure {
    margin: 1.5rem 0;
}

.article-body figure img {
    margin: 0;
}

.article-body figcaption {
    font-size: 13px;
    color: var(--text-low);
    text-align: center;
    margin-top: 8px;
}

.article-body ul,
.article-body ol {
    margin: 1rem 0 1.5rem;
    padding-left: 0;
}

.article-body ul li,
.article-body ol li {
    line-height: 1.9;
    color: var(--text-mid);
    margin-bottom: .35rem;
}

.article-body ul {
    list-style: none;
}

.article-body ul li {
    padding-left: 1.5rem;
    position: relative;
}

.article-body ul li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--gold);
}

.article-body ol {
    list-style: decimal;
    padding-left: 1.5rem;
}

.article-body a {
    color: var(--gold);
    text-decoration: underline;
    text-underline-offset: 4px;
}

.article-body a:hover {
    color: var(--gold-bright);
}

.article-body strong {
    color: var(--text-hi);
    font-weight: 600;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

.article-body th {
    color: var(--gold);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    padding: 14px 16px;
    border-bottom: 1px solid var(--line-strong);
    text-align: left;
    letter-spacing: .04em;
}

.article-body td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
    color: var(--text-hi);
    line-height: 1.6;
}

.article-body pre {
    background: var(--bg-panel);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 20px;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.article-body code {
    font-family: "SFMono-Regular", Consolas, monospace;
    font-size: .9em;
    color: var(--gold);
}

.article-body pre code {
    color: var(--text-hi);
}

/* ---------- 内容未找到 ---------- */
.article-empty {
    text-align: center;
    padding: 72px 20px 88px;
}

.article-empty-icon {
    display: inline-flex;
    width: 72px;
    height: 72px;
    border-radius: 20px;
    background: var(--bg-panel);
    border: 1px solid var(--line);
    align-items: center;
    justify-content: center;
    color: var(--text-low);
    margin-bottom: 24px;
}

.article-empty h2 {
    color: var(--text-hi);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.article-empty p {
    color: var(--text-mid);
    margin-bottom: 28px;
    max-width: 360px;
    margin-left: auto;
    margin-right: auto;
}

/* ---------- 下载 CTA ---------- */
.article-cta {
    padding: 8px 0 72px;
}

.article-cta-inner {
    background: var(--bg-panel);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 36px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.article-cta-text h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-hi);
    margin: 0 0 6px;
}

.article-cta-text p {
    margin: 0;
    color: var(--text-mid);
    font-size: 14px;
}

/* ---------- 继续阅读 ---------- */
.continue-section {
    padding: 16px 0 88px;
}

.continue-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 24px;
    align-items: stretch;
}

.card-primary {
    display: flex;
    flex-direction: column;
    background: var(--bg-panel);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-decoration: none;
    transition: all .25s ease;
}

.card-primary:hover {
    transform: translateY(-4px);
    border-color: rgba(240, 165, 43, .45);
    box-shadow: var(--shadow-hover);
}

.card-primary-cover {
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.card-primary-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .35s ease;
}

.card-primary:hover .card-primary-cover img {
    transform: scale(1.03);
}

.card-primary-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
}

.card-primary-body h3 {
    font-size: 1.25rem;
    font-weight: 650;
    color: var(--text-hi);
    line-height: 1.45;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-primary-body p {
    color: var(--text-mid);
    font-size: 14px;
    line-height: 1.7;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-primary-meta {
    color: var(--text-low);
    font-size: 13px;
    margin-top: auto;
}

.continue-rows {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.card-row {
    background: var(--bg-panel);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    text-decoration: none;
    transition: all .25s ease;
    flex: 1;
}

.card-row:hover {
    border-color: rgba(240, 165, 43, .45);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.card-row strong {
    color: var(--text-hi);
    font-size: 15px;
    font-weight: 600;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-row time {
    color: var(--text-low);
    font-size: 13px;
    white-space: nowrap;
    flex-shrink: 0;
}

.continue-actions {
    text-align: center;
    margin-top: 40px;
}

/* ---------- 页脚 ---------- */
.site-footer {
    background: var(--bg-ink);
    border-top: 1px solid var(--line);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-desc {
    color: var(--text-mid);
    font-size: 14px;
    line-height: 1.7;
    max-width: 280px;
    margin-bottom: 0;
}

.footer-download-icon {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--gold);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    margin-top: 16px;
}

.footer-download-icon:hover {
    color: var(--gold-bright);
}

.footer-title {
    font-size: 15px;
    color: var(--text-hi);
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-mid);
    text-decoration: none;
    font-size: 14px;
    transition: color .25s ease;
}

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

.footer-bottom {
    border-top: 1px solid var(--line);
    padding: 20px 0;
}

.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    color: var(--text-low);
    font-size: 13px;
}

.footer-bottom-links {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-bottom-links a {
    color: var(--text-low);
    text-decoration: none;
}

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

.footer-link-sep {
    color: var(--text-low);
    opacity: .5;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .header-inner {
        gap: 12px;
    }

    .brand-text {
        font-size: 16px;
    }

    .brand-icon svg {
        width: 28px;
        height: 28px;
    }

    .nav-chips {
        overflow-x: auto;
        max-width: 100%;
        scrollbar-width: none;
        -webkit-overflow-scrolling: touch;
    }

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

    .nav-chip {
        padding: 10px 18px;
        font-size: 13px;
    }

    .header-cta {
        padding: 10px 14px;
    }

    .header-cta-text {
        display: none;
    }

    .article-hero {
        min-height: 45vh;
        padding: 120px 16px 48px;
    }

    .article-hero h1 {
        font-size: clamp(1.75rem, 5vw, 2.25rem);
    }

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

    .article-main {
        padding: 48px 0 24px;
    }

    .article-cta {
        padding: 0 0 56px;
    }

    .article-cta-inner {
        flex-direction: column;
        text-align: center;
        padding: 32px 24px;
    }

    .continue-section {
        padding: 16px 0 64px;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 520px) {
    .container-xxl {
        padding-left: 16px;
        padding-right: 16px;
    }

    .header-inner {
        height: 64px;
    }

    .brand-text {
        font-size: 15px;
    }

    .brand-icon svg {
        width: 26px;
        height: 26px;
    }

    .header-cta {
        padding: 8px 12px;
    }

    .nav-chip {
        padding: 8px 16px;
        font-size: 12px;
    }

    .brand-icon {
        display: none;
    }

    .article-hero {
        padding: 100px 16px 40px;
    }

    .article-breadcrumb {
        font-size: 13px;
    }

    .section-label {
        gap: 8px;
    }

    .section-title {
        font-size: 18px;
    }

    .article-body h2 {
        font-size: 1.4rem;
    }

    .article-body h3 {
        font-size: 1.1rem;
    }

    .card-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .card-row time {
        white-space: normal;
    }

    .btn {
        padding: 12px 20px;
        font-size: 14px;
    }

    .footer-bottom-inner {
        flex-direction: column;
        justify-content: center;
        text-align: center;
    }
}