/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #C8FF16;
            --color-primary-strong: #A1D600;
            --color-accent: #FF7A3C;
            --color-bg-dark: #0B0F0F;
            --color-bg-light: #F5F7F5;
            --color-surface: #FFFFFF;
            --color-text-main: #17201D;
            --color-text-muted: #66706B;
            --color-border: rgba(23, 32, 29, 0.10);
            --color-glass-border: rgba(255, 255, 255, 0.14);
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --shadow-sm: 0 6px 16px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 14px 30px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.22);
            --space-section: 96px;
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-main);
            color: var(--color-text-main);
            background: var(--color-bg-light);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            object-fit: cover;
        }
        button,
        input {
            font-family: inherit;
        }
        ul {
            list-style: none;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .main-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 76px;
            background: rgba(11, 15, 15, 0.38);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-glass-border);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            z-index: 1050;
            transition: background .35s ease, box-shadow .35s ease;
        }
        .main-nav.scrolled {
            background: rgba(9, 12, 12, 0.92);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.22);
        }
        .main-nav .container {
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .navbar-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.02em;
            padding: 8px 0;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .navbar-brand .brand-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-primary);
            display: inline-block;
            box-shadow: 0 0 12px rgba(200, 255, 22, 0.8);
        }
        .navbar-brand .brand-highlight {
            color: var(--color-primary);
        }
        .main-nav .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            margin: 0;
            padding: 0;
        }
        .main-nav .nav-links .nav-item {
            list-style: none;
        }
        .main-nav .nav-links .nav-link {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 2px;
            position: relative;
            background: transparent;
            border: none;
        }
        .main-nav .nav-links .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: width .3s ease;
        }
        .main-nav .nav-links .nav-link:hover::after,
        .main-nav .nav-links .nav-link.active::after {
            width: 100%;
        }
        .main-nav .nav-links .nav-link:hover,
        .main-nav .nav-links .nav-link.active {
            color: var(--color-primary);
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .nav-search-btn {
            background: transparent;
            border: none;
            color: rgba(255, 255, 255, 0.8);
            font-size: 18px;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background .25s, color .25s;
        }
        .nav-search-btn:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--color-primary);
        }
        .btn-nav-download {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-primary);
            color: #101707;
            font-weight: 700;
            font-size: 14px;
            padding: 10px 24px;
            border-radius: 999px;
            border: none;
            transition: filter .25s, transform .25s, box-shadow .25s;
            box-shadow: 0 4px 16px rgba(200, 255, 22, 0.25);
        }
        .btn-nav-download:hover {
            filter: brightness(1.1);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 255, 22, 0.35);
            color: #101707;
        }
        .navbar-toggler {
            border: 1.5px solid rgba(255, 255, 255, 0.25);
            border-radius: 8px;
            padding: 6px 10px;
            background: transparent;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(200, 255, 22, 0.4);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        @media (max-width: 991.98px) {
            .main-nav {
                height: 62px;
            }
            .main-nav .navbar-collapse {
                background: rgba(9, 12, 12, 0.98);
                border-radius: 0 0 16px 16px;
                padding: 20px 24px;
                box-shadow: var(--shadow-lg);
                margin-top: 62px;
            }
            .main-nav .nav-links {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                width: 100%;
            }
            .main-nav .nav-links .nav-link {
                padding: 14px 0;
                font-size: 16px;
                width: 100%;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                min-height: 44px;
                display: flex;
                align-items: center;
            }
            .nav-right {
                margin-top: 16px;
                width: 100%;
            }
            .btn-nav-download {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Hero ===== */
        .hero-section {
            min-height: 100vh;
            min-height: 640px;
            background: var(--color-bg-dark);
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            z-index: 1;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(11, 15, 15, 0.55) 0%, rgba(11, 15, 15, 0.35) 50%, rgba(11, 15, 15, 0.85) 100%);
            z-index: 2;
        }
        .hero-overlay::after {
            content: "";
            position: absolute;
            top: -10%;
            right: -5%;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(200, 255, 22, 0.14) 0%, transparent 70%);
            z-index: 3;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 10;
            text-align: center;
            padding: 120px 24px 80px;
            max-width: 900px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(200, 255, 22, 0.12);
            border: 1px solid rgba(200, 255, 22, 0.3);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 24px;
            letter-spacing: 0.05em;
        }
        .hero-badge i {
            font-size: 14px;
        }
        .hero-content h1 {
            font-size: clamp(2.5rem, 5vw, 4.25rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: 0.02em;
            color: #ffffff;
            margin-bottom: 20px;
            text-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        .hero-content h1 .highlight {
            color: var(--color-primary);
        }
        .hero-subtitle {
            font-size: clamp(1rem, 1.6vw, 1.2rem);
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            max-width: 720px;
            margin: 0 auto 40px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
        }
        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-primary);
            color: #101707;
            font-weight: 700;
            font-size: 16px;
            padding: 14px 36px;
            border-radius: 999px;
            border: none;
            min-height: 48px;
            transition: filter .25s, transform .25s, box-shadow .25s;
            box-shadow: 0 6px 24px rgba(200, 255, 22, 0.3);
        }
        .btn-primary-custom:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(200, 255, 22, 0.4);
            color: #101707;
        }
        .btn-primary-custom:focus,
        .btn-outline-custom:focus {
            outline: 2px solid var(--color-primary-strong);
            outline-offset: 2px;
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #ffffff;
            font-weight: 600;
            font-size: 16px;
            padding: 13px 34px;
            border-radius: 999px;
            border: 1.5px solid rgba(255, 255, 255, 0.7);
            min-height: 48px;
            transition: background .25s, border-color .25s, transform .25s;
        }
        .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: #ffffff;
            color: #ffffff;
            transform: translateY(-2px);
        }
        .scroll-indicator {
            position: absolute;
            bottom: 36px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 10;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            letter-spacing: 0.1em;
        }
        .scroll-indicator .line {
            width: 1px;
            height: 48px;
            background: linear-gradient(to bottom, var(--color-primary), transparent);
            animation: scrollPulse 2s infinite ease-in-out;
        }
        @keyframes scrollPulse {
            0% {
                opacity: 0.4;
                transform-origin: top;
                transform: scaleY(0.6);
            }
            50% {
                opacity: 1;
                transform: scaleY(1);
            }
            100% {
                opacity: 0.4;
                transform: scaleY(0.6);
            }
        }

        /* ===== 功能价值区 ===== */
        .features-section {
            background: var(--color-bg-light);
            padding: var(--space-section) 0;
        }
        .section-title-wrap {
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-block;
            background: rgba(200, 255, 22, 0.18);
            color: #5F8B00;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.625rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            color: var(--color-text-main);
        }
        .section-desc {
            color: var(--color-text-muted);
            font-size: 16px;
            max-width: 640px;
            line-height: 1.8;
        }
        .feature-left {
            padding-right: 32px;
        }
        .feature-list-item {
            display: flex;
            gap: 16px;
            padding: 20px 0;
            border-bottom: 1px solid var(--color-border);
            transition: padding-left .3s ease;
        }
        .feature-list-item:last-child {
            border-bottom: none;
        }
        .feature-list-item:hover {
            padding-left: 8px;
        }
        .feature-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(200, 255, 22, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #5F8B00;
            font-size: 18px;
            border: 1px solid rgba(200, 255, 22, 0.25);
        }
        .feature-list-item h3 {
            font-size: 1.125rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 6px;
            color: var(--color-text-main);
        }
        .feature-list-item p {
            color: var(--color-text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
        }
        .feature-carousel-wrapper {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 20px;
            border: 1px solid rgba(23, 32, 29, 0.06);
            position: relative;
        }
        .carousel-window {
            border-radius: 14px;
            overflow: hidden;
            background: #0B0F0F;
        }
        .carousel-window .carousel-item img {
            width: 100%;
            height: auto;
            min-height: 260px;
            object-fit: cover;
            border-radius: 14px;
        }
        .carousel-window .carousel-item {
            position: relative;
        }
        .carousel-window .carousel-item::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.4), transparent 60%);
            border-radius: 14px;
        }
        .carousel-caption-custom {
            position: absolute;
            bottom: 16px;
            left: 20px;
            z-index: 5;
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            background: rgba(11, 15, 15, 0.6);
            backdrop-filter: blur(10px);
            padding: 6px 14px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .carousel-caption-custom .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-primary);
            display: inline-block;
            margin-right: 6px;
        }
        .feature-carousel-wrapper .carousel-control-prev,
        .feature-carousel-wrapper .carousel-control-next {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid var(--color-border);
            top: 50%;
            transform: translateY(-50%);
            opacity: 0.95;
            box-shadow: var(--shadow-sm);
            transition: background .25s, transform .25s;
        }
        .feature-carousel-wrapper .carousel-control-prev {
            left: -8px;
        }
        .feature-carousel-wrapper .carousel-control-next {
            right: -8px;
        }
        .feature-carousel-wrapper .carousel-control-prev:hover,
        .feature-carousel-wrapper .carousel-control-next:hover {
            background: var(--color-primary);
        }
        .feature-carousel-wrapper .carousel-control-prev i,
        .feature-carousel-wrapper .carousel-control-next i {
            color: var(--color-text-main);
            font-size: 18px;
        }
        .carousel-indicators-custom {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 16px;
        }
        .carousel-indicators-custom button {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            border: none;
            background: rgba(23, 32, 29, 0.15);
            padding: 0;
            transition: background .3s, width .3s;
        }
        .carousel-indicators-custom button.active {
            background: var(--color-primary-strong);
            width: 24px;
            border-radius: 999px;
        }
        @media (max-width: 991.98px) {
            .feature-left {
                padding-right: 0;
                margin-bottom: 40px;
            }
        }

        /* ===== 系统要求区 ===== */
        .requirements-section {
            background: var(--color-bg-dark);
            padding: var(--space-section) 0;
            position: relative;
            overflow: hidden;
        }
        .requirements-section::before {
            content: "";
            position: absolute;
            bottom: -15%;
            left: -5%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(200, 255, 22, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .requirements-section .section-title {
            color: #fff;
        }
        .requirements-section .section-desc {
            color: rgba(255, 255, 255, 0.6);
        }
        .req-wrapper {
            margin-top: 48px;
        }
        .req-tabs {
            display: flex;
            gap: 8px;
            background: rgba(255, 255, 255, 0.04);
            padding: 6px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            width: fit-content;
            margin: 0 auto 40px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .req-tab {
            padding: 10px 28px;
            border-radius: 999px;
            border: none;
            background: transparent;
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background .25s, color .25s;
        }
        .req-tab:hover {
            color: #fff;
        }
        .req-tab.active {
            background: var(--color-primary);
            color: #101707;
            box-shadow: 0 4px 16px rgba(200, 255, 22, 0.25);
        }
        .req-panel {
            display: none;
            max-width: 900px;
            margin: 0 auto;
        }
        .req-panel.active {
            display: block;
            animation: fadeIn .4s ease;
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(12px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .req-content {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 40px;
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }
        .req-info {
            flex: 1;
            min-width: 240px;
        }
        .req-info .platform-name {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
        }
        .req-info .platform-name i {
            color: var(--color-primary);
        }
        .req-specs {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .req-spec-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 12px;
            font-size: 14px;
        }
        .req-spec-row .label {
            color: rgba(255, 255, 255, 0.6);
        }
        .req-spec-row .value {
            color: #fff;
            font-weight: 600;
            font-family: "DIN Alternate", "Bahnschrift", sans-serif;
            letter-spacing: 0.03em;
        }
        .req-spec-row .value .version-badge {
            background: rgba(200, 255, 22, 0.15);
            color: var(--color-primary);
            padding: 2px 10px;
            border-radius: 6px;
            font-weight: 700;
            font-size: 13px;
        }
        .req-status {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            margin-top: 20px;
            padding: 8px 16px;
            border-radius: 999px;
            background: rgba(47, 191, 113, 0.1);
            color: #4FE08E;
            border: 1px solid rgba(47, 191, 113, 0.2);
        }
        .req-status .status-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #2FBF71;
            box-shadow: 0 0 8px rgba(47, 191, 113, 0.6);
        }
        .req-compat {
            flex: 1;
            min-width: 220px;
            background: rgba(255, 255, 255, 0.02);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
        .req-compat h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .compat-bar {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .compat-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
        }
        .compat-item .bar-label {
            color: rgba(255, 255, 255, 0.55);
            min-width: 60px;
        }
        .compat-item .bar-track {
            flex: 1;
            height: 6px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.08);
            overflow: hidden;
        }
        .compat-item .bar-fill {
            height: 100%;
            border-radius: 999px;
            background: var(--color-primary);
        }
        .compat-item .bar-percent {
            font-family: "DIN Alternate", "Bahnschrift", sans-serif;
            color: rgba(255, 255, 255, 0.8);
            font-size: 12px;
            min-width: 36px;
            text-align: right;
        }
        @media (max-width: 767.98px) {
            .req-content {
                padding: 24px;
                flex-direction: column;
            }
            .req-tabs {
                width: 100%;
            }
            .req-tab {
                flex: 1;
                padding: 10px 16px;
                font-size: 13px;
            }
        }

        /* ===== 评价墙 ===== */
        .reviews-section {
            background: var(--color-bg-light);
            padding: var(--space-section) 0;
        }
        .reviews-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .review-card {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: transform .3s ease, box-shadow .3s ease;
        }
        .review-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .review-header {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px;
        }
        .review-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, #E8F7D0, #C8FF16);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            color: #3E5A00;
            flex-shrink: 0;
        }
        .review-user {
            flex: 1;
        }
        .review-user .name {
            font-weight: 600;
            font-size: 15px;
            color: var(--color-text-main);
        }
        .review-user .source {
            font-size: 12px;
            color: var(--color-text-muted);
        }
        .review-stars {
            display: flex;
            gap: 2px;
            color: #F4B740;
            font-size: 14px;
        }
        .review-text {
            font-size: 14px;
            line-height: 1.8;
            color: var(--color-text-main);
        }
        @media (max-width: 767.98px) {
            .reviews-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 下载按钮组 ===== */
        .download-section {
            background: var(--color-bg-dark);
            padding: var(--space-section) 0;
            position: relative;
            overflow: hidden;
        }
        .download-section::after {
            content: "";
            position: absolute;
            top: -30%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 122, 60, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .download-wrapper {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 64px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }
        .download-left {
            text-align: center;
            max-width: 600px;
        }
        .download-left .section-title {
            color: #fff;
        }
        .download-left .section-desc {
            color: rgba(255, 255, 255, 0.6);
            margin: 0 auto 32px;
        }
        .download-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .btn-download-platform {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: rgba(255, 255, 255, 0.05);
            border: 1.5px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: 999px;
            min-width: 190px;
            min-height: 54px;
            justify-content: center;
            transition: all .3s ease;
        }
        .btn-download-platform i {
            color: var(--color-primary);
            font-size: 18px;
        }
        .btn-download-platform:hover {
            border-color: var(--color-primary);
            background: rgba(200, 255, 22, 0.08);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 255, 22, 0.15);
            color: #fff;
        }
        .btn-download-platform.accent {
            border-color: rgba(255, 122, 60, 0.5);
        }
        .btn-download-platform.accent i {
            color: var(--color-accent);
        }
        .btn-download-platform.accent:hover {
            border-color: var(--color-accent);
            background: rgba(255, 122, 60, 0.1);
            box-shadow: 0 8px 24px rgba(255, 122, 60, 0.15);
        }
        .download-version {
            text-align: center;
            margin-top: 20px;
            color: rgba(255, 255, 255, 0.35);
            font-size: 13px;
            font-family: "DIN Alternate", "Bahnschrift", sans-serif;
        }
        .download-qr {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 20px;
            width: 220px;
            text-align: center;
            box-shadow: var(--shadow-md);
        }
        .download-qr img {
            width: 180px;
            height: 180px;
            object-fit: cover;
            border-radius: 12px;
            display: block;
            margin: 0 auto 12px;
        }
        .download-qr p {
            font-size: 13px;
            color: var(--color-text-muted);
            margin: 0;
        }
        .download-qr .qr-label {
            display: inline-block;
            background: var(--color-primary);
            color: #101707;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 8px;
        }
        @media (max-width: 767.98px) {
            .download-wrapper {
                gap: 40px;
            }
            .btn-download-platform {
                width: 100%;
                max-width: 260px;
            }
        }

        /* ===== 最新资讯 ===== */
        .news-section {
            background: var(--color-bg-light);
            padding: var(--space-section) 0;
        }
        .news-section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 40px;
            flex-wrap: wrap;
            gap: 16px;
        }
        .section-title {
            margin-bottom: 8px;
        }
        .news-more-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--color-text-muted);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 4px;
            transition: color .25s, gap .25s;
        }
        .news-more-link:hover {
            color: var(--color-primary-strong);
            gap: 14px;
        }
        .news-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .news-card {
            display: flex;
            gap: 20px;
            background: var(--color-surface);
            border-radius: var(--radius-md);
            padding: 20px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: transform .3s, box-shadow .3s;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .news-thumb {
            flex-shrink: 0;
            width: 160px;
            height: 120px;
            border-radius: 14px;
            overflow: hidden;
            background: #e8ece8;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .35s ease;
        }
        .news-card:hover .news-thumb img {
            transform: scale(1.04);
        }
        .news-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }
        .news-category {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: #5F8B00;
            background: rgba(200, 255, 22, 0.15);
            border-radius: 999px;
            padding: 2px 12px;
            width: fit-content;
            margin-bottom: 8px;
            letter-spacing: 0.03em;
        }
        .news-body h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--color-text-main);
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-body h3 a:hover {
            color: var(--color-primary-strong);
        }
        .news-body p {
            font-size: 14px;
            line-height: 1.6;
            color: var(--color-text-muted);
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .news-meta .date i {
            font-size: 12px;
            margin-right: 4px;
        }
        .empty-state {
            grid-column: 1 / -1;
            border: 2px dashed var(--color-border);
            border-radius: 18px;
            padding: 60px 24px;
            text-align: center;
            color: var(--color-text-muted);
            font-size: 14px;
            background: rgba(255, 255, 255, 0.5);
        }
        .empty-state i {
            display: block;
            font-size: 36px;
            color: rgba(23, 32, 29, 0.2);
            margin-bottom: 12px;
        }
        @media (max-width: 991.98px) {
            .news-list {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 575.98px) {
            .news-card {
                flex-direction: column;
            }
            .news-thumb {
                width: 100%;
                height: 180px;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--color-bg-light);
            padding: 0 0 var(--space-section) 0;
        }
        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion-item {
            border: 1px solid var(--color-border) !important;
            border-radius: var(--radius-md) !important;
            background: var(--color-surface);
            box-shadow: var(--shadow-sm);
            margin-bottom: 16px;
            overflow: hidden;
            transition: box-shadow .3s ease, border-color .3s ease;
        }
        .accordion-item:has(.accordion-button:focus) {
            border-color: var(--color-primary-strong) !important;
        }
        .accordion-button {
            background: var(--color-surface) !important;
            color: var(--color-text-main) !important;
            font-size: 16px;
            font-weight: 600;
            padding: 20px 24px;
            box-shadow: none !important;
            border: none !important;
            border-radius: var(--radius-md) !important;
            display: flex;
            align-items: center;
            gap: 12px;
            line-height: 1.5;
            min-height: 64px;
        }
        .accordion-button .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 2px solid var(--color-primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary-strong);
            font-size: 12px;
            flex-shrink: 0;
            transition: background .3s, color .3s;
        }
        .accordion-button:not(.collapsed) .faq-icon {
            background: var(--color-primary);
            color: #101707;
        }
        .accordion-button::after {
            background-image: none !important;
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 14px;
            color: var(--color-text-muted);
            transition: transform .3s ease;
        }
        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--color-primary-strong);
        }
        .accordion-button:focus {
            box-shadow: 0 0 0 2px rgba(200, 255, 22, 0.3) !important;
        }
        .accordion-body {
            padding: 0 24px 20px 64px;
            color: var(--color-text-muted);
            font-size: 15px;
            line-height: 1.8;
        }
        @media (max-width: 575.98px) {
            .accordion-body {
                padding-left: 24px;
            }
        }

        /* ===== CTA 带 ===== */
        .cta-section {
            background: var(--color-bg-dark);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(200, 255, 22, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-inner h2 {
            color: #fff;
            font-size: clamp(1.5rem, 2.5vw, 2.125rem);
            font-weight: 700;
            margin-bottom: 16px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 15px;
            margin-bottom: 32px;
        }
        .cta-inner .btn-primary-custom {
            font-size: 15px;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #080A0A;
            color: rgba(255, 255, 255, 0.6);
            padding: 72px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 48px;
        }
        .footer-brand .logo-text {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand .logo-text .brand-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-primary);
            display: inline-block;
            box-shadow: 0 0 12px rgba(200, 255, 22, 0.8);
        }
        .footer-brand .logo-text .brand-highlight {
            color: var(--color-primary);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .footer h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            transition: color .25s, padding-left .25s;
        }
        .footer-links a:hover {
            color: var(--color-primary);
            padding-left: 6px;
        }
        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 12px;
        }
        .footer-subscribe input {
            flex: 1;
            height: 44px;
            border-radius: 12px;
            border: 1.5px solid rgba(255, 255, 255, 0.12);
            background: rgba(255, 255, 255, 0.04);
            color: #fff;
            padding: 0 16px;
            font-size: 14px;
            outline: none;
            transition: border-color .25s, box-shadow .25s;
        }
        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.3);
        }
        .footer-subscribe input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(200, 255, 22, 0.15);
        }
        .footer-subscribe button {
            height: 44px;
            padding: 0 20px;
            border-radius: 999px;
            border: none;
            background: var(--color-primary);
            color: #101707;
            font-weight: 700;
            font-size: 14px;
            cursor: pointer;
            transition: filter .25s, transform .25s;
            white-space: nowrap;
        }
        .footer-subscribe button:hover {
            filter: brightness(1.1);
            transform: translateY(-1px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-bottom a:hover {
            color: var(--color-primary);
        }
        @media (max-width: 991.98px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 575.98px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 通用按钮焦点 ===== */
        .btn:focus-visible {
            outline: 2px solid var(--color-primary-strong);
            outline-offset: 2px;
        }

        /* ===== 响应式全局 ===== */
        @media (max-width: 991.98px) {
            :root {
                --space-section: 72px;
            }
        }
        @media (max-width: 575.98px) {
            :root {
                --space-section: 48px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            body {
                font-size: 15px;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .download-buttons {
                flex-direction: column;
                align-items: center;
            }
        }
        @media (max-width: 400px) {
            .hero-content {
                padding-left: 16px;
                padding-right: 16px;
            }
            .req-spec-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #C8FF16;
            --color-primary-strong: #A1D600;
            --color-accent: #FF7A3C;
            --color-bg-dark: #0B0F0F;
            --color-bg-light: #F5F7F5;
            --color-surface: #FFFFFF;
            --color-text-main: #17201D;
            --color-text-muted: #66706B;
            --color-border: rgba(23, 32, 29, 0.10);
            --color-glass-border: rgba(255, 255, 255, 0.14);
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-card: 0 6px 16px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 14px 30px rgba(0, 0, 0, 0.10);
            --shadow-nav: 0 8px 30px rgba(0, 0, 0, 0.08);
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --font-num: "DIN Alternate", "Bahnschrift", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text-main);
            background: var(--color-bg-light);
            -webkit-font-smoothing: antialiased;
        }

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

        img {
            max-width: 100%;
            height: auto;
            object-fit: cover;
        }

        button,
        input {
            font-family: var(--font-main);
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .main-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 76px;
            z-index: 1000;
            background: rgba(11, 15, 15, 0.38);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-glass-border);
            box-shadow: var(--shadow-nav);
            transition: background .35s ease, box-shadow .35s ease, height .3s ease;
        }

        .main-nav.scrolled {
            background: rgba(9, 12, 12, 0.92);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.22);
        }

        .main-nav .container {
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.02em;
            white-space: nowrap;
            line-height: 1.2;
        }

        .navbar-brand:hover {
            color: #fff;
        }

        .brand-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-primary);
            box-shadow: 0 0 12px rgba(200, 255, 22, 0.7);
            flex-shrink: 0;
            display: inline-block;
        }

        .brand-highlight {
            color: var(--color-primary);
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            padding: 6px 10px;
            background: transparent;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .nav-links {
            display: flex;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links .nav-link {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            font-weight: 500;
            padding: 10px 18px;
            border-radius: 999px;
            position: relative;
            transition: color .25s ease, background .25s ease;
        }

        .nav-links .nav-link:hover {
            color: var(--color-primary);
        }

        .nav-links .nav-link.active {
            color: var(--color-primary);
            background: rgba(200, 255, 22, 0.08);
        }

        .nav-links .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
        }

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

        .nav-search-btn {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all .25s ease;
        }

        .nav-search-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            transform: translateY(-1px);
        }

        .btn-nav-download {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 42px;
            padding: 0 24px;
            border-radius: 999px;
            background: var(--color-primary);
            color: #10200A;
            font-weight: 700;
            font-size: 14px;
            border: none;
            transition: all .25s ease;
        }

        .btn-nav-download:hover {
            background: var(--color-primary-strong);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(200, 255, 22, 0.25);
            color: #10200A;
        }

        /* ===== 通用区块 ===== */
        .section {
            padding: 96px 0;
            position: relative;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary-strong);
            background: rgba(200, 255, 22, 0.1);
            border: 1px solid rgba(200, 255, 22, 0.25);
            border-radius: 999px;
            padding: 6px 18px;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }

        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.625rem);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.01em;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--color-text-muted);
            line-height: 1.8;
            max-width: 680px;
        }

        /* ===== Hero ===== */
        .category-hero {
            min-height: 92vh;
            display: flex;
            align-items: center;
            background: linear-gradient(180deg, rgba(11, 15, 15, 0.75) 0%, rgba(11, 15, 15, 0.55) 55%, rgba(11, 15, 15, 0.92) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 160px 0 100px;
            margin-top: 0;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -100px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 255, 22, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

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

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.45);
        }

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

        .breadcrumb-custom .sep {
            color: rgba(255, 255, 255, 0.3);
        }

        .breadcrumb-custom .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        .category-hero h1 {
            font-size: clamp(2.5rem, 5vw, 4.25rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: 0.02em;
            color: #fff;
            margin-bottom: 24px;
            max-width: 800px;
        }

        .category-hero h1 .hero-highlight {
            color: var(--color-primary);
            position: relative;
        }

        .category-hero p.lead {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            max-width: 640px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            height: 52px;
            padding: 0 32px;
            border-radius: 999px;
            background: var(--color-primary);
            color: #10200A;
            font-weight: 700;
            font-size: 15px;
            border: none;
            transition: all .25s ease;
        }

        .btn-primary-custom:hover {
            background: var(--color-primary-strong);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 255, 22, 0.3);
            color: #10200A;
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            height: 52px;
            padding: 0 32px;
            border-radius: 999px;
            border: 1.5px solid rgba(255, 255, 255, 0.55);
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            transition: all .25s ease;
        }

        .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--color-primary);
            color: var(--color-primary);
            transform: translateY(-2px);
        }

        .hero-scroll {
            position: absolute;
            bottom: 36px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.5);
            font-size: 12px;
            letter-spacing: 0.2em;
            transition: color .3s ease;
        }

        .hero-scroll i {
            font-size: 18px;
            animation: scrollBounce 2s infinite;
        }

        .hero-scroll:hover {
            color: var(--color-primary);
        }

        @keyframes scrollBounce {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(8px);
            }
        }

        /* ===== 卖点区 ===== */
        .features-section {
            background: var(--color-bg-light);
            padding: 96px 0;
        }

        .feature-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 28px 24px;
            display: flex;
            gap: 20px;
            height: 100%;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(200, 255, 22, 0.4);
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(200, 255, 22, 0.12);
            border: 1px solid rgba(200, 255, 22, 0.25);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary-strong);
            font-size: 20px;
            flex-shrink: 0;
        }

        .feature-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 适用场景 ===== */
        .scenario-section {
            background: var(--color-surface);
            padding: 96px 0;
        }

        .scenario-img-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            min-height: 340px;
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .scenario-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .scenario-img-wrap::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(11, 15, 15, 0.35));
            pointer-events: none;
        }

        .scenario-content {
            padding-left: 24px;
        }

        .scenario-content .section-label {
            margin-bottom: 12px;
        }

        .scenario-content h2 {
            font-size: clamp(1.6rem, 2.5vw, 2.2rem);
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 16px;
        }

        .scenario-content p {
            color: var(--color-text-muted);
            margin-bottom: 16px;
            line-height: 1.8;
        }

        .scenario-list {
            margin-top: 20px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .scenario-list-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }

        .scenario-list-item i {
            color: var(--color-primary-strong);
            font-size: 16px;
            margin-top: 6px;
            background: rgba(200, 255, 22, 0.12);
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .scenario-list-item strong {
            display: block;
            font-size: 15px;
            margin-bottom: 2px;
        }

        .scenario-list-item span {
            font-size: 14px;
            color: var(--color-text-muted);
        }

        /* ===== 下载流程 ===== */
        .flow-section {
            background: var(--color-bg-dark);
            padding: 96px 0;
            position: relative;
            overflow: hidden;
        }

        .flow-section::before {
            content: "";
            position: absolute;
            bottom: -150px;
            left: -100px;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 255, 22, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .flow-section .section-title {
            color: #fff;
        }

        .flow-section .section-desc {
            color: rgba(255, 255, 255, 0.55);
        }

        .flow-section .section-label {
            background: rgba(200, 255, 22, 0.12);
            border-color: rgba(200, 255, 22, 0.3);
        }

        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 48px;
            position: relative;
            z-index: 1;
        }

        .flow-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--color-glass-border);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            position: relative;
            transition: background .3s ease, transform .3s ease, border-color .3s ease;
        }

        .flow-item:hover {
            background: rgba(255, 255, 255, 0.07);
            transform: translateY(-4px);
            border-color: rgba(200, 255, 22, 0.35);
        }

        .flow-num {
            font-family: var(--font-num);
            font-size: 42px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 16px;
            opacity: 0.9;
        }

        .flow-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .flow-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .flow-arrow {
            position: absolute;
            top: 50%;
            right: -20px;
            transform: translateY(-50%);
            color: var(--color-primary);
            font-size: 14px;
            z-index: 2;
            opacity: 0.6;
        }

        /* ===== 系统要求 ===== */
        .requirements-section {
            background: var(--color-bg-light);
            padding: 96px 0;
        }

        .req-list {
            margin-top: 40px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .req-item {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            gap: 32px;
            transition: box-shadow .3s ease, transform .3s ease;
        }

        .req-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .req-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(200, 255, 22, 0.12);
            border: 1px solid rgba(200, 255, 22, 0.25);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--color-primary-strong);
            flex-shrink: 0;
        }

        .req-platform {
            flex: 0 0 150px;
        }

        .req-platform h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 2px;
        }

        .req-platform .ver {
            font-size: 13px;
            color: var(--color-text-muted);
            font-family: var(--font-num);
        }

        .req-specs {
            flex: 1;
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }

        .req-spec-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .req-spec-item .label {
            font-size: 13px;
            color: var(--color-text-muted);
        }

        .req-spec-item .value {
            font-size: 15px;
            font-weight: 700;
            font-family: var(--font-num);
        }

        .req-status {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary-strong);
            background: rgba(200, 255, 22, 0.1);
            padding: 6px 14px;
            border-radius: 999px;
            white-space: nowrap;
        }

        .req-status::before {
            content: "";
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-primary);
            box-shadow: 0 0 8px rgba(200, 255, 22, 0.6);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--color-surface);
            padding: 96px 0;
        }

        .faq-accordion {
            max-width: 860px;
            margin: 40px auto 0;
        }

        .faq-accordion .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: 16px;
            overflow: hidden;
            margin-bottom: 16px;
            background: var(--color-surface);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
            transition: box-shadow .3s ease, border-color .3s ease;
        }

        .faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(200, 255, 22, 0.4);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
        }

        .faq-accordion .accordion-button {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-main);
            background: transparent;
            box-shadow: none;
            gap: 14px;
            transition: color .3s ease, background .3s ease;
        }

        .faq-accordion .accordion-button::after {
            content: none;
        }

        .faq-accordion .accordion-button::before {
            content: "";
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-primary);
            border: 2px solid rgba(200, 255, 22, 0.3);
            flex-shrink: 0;
            transition: box-shadow .3s ease, transform .3s ease;
        }

        .faq-accordion .accordion-button:not(.collapsed)::before {
            box-shadow: 0 0 10px rgba(200, 255, 22, 0.5);
            transform: scale(1.1);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--color-text-main);
            background: rgba(200, 255, 22, 0.04);
        }

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

        .faq-accordion .accordion-body {
            padding: 4px 24px 24px 52px;
            font-size: 15px;
            color: var(--color-text-muted);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-bg-dark) 0%, #101615 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 255, 22, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -50px;
            width: 250px;
            height: 250px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 122, 60, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }

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

        .cta-inner h2 {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 32px;
            line-height: 1.8;
        }

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

        /* ===== 页脚 ===== */
        .footer {
            background: #070A0A;
            color: rgba(255, 255, 255, 0.65);
            padding: 64px 0 28px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 48px;
        }

        .footer-brand .logo-text {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }

        .footer-brand .logo-text .brand-dot {
            width: 9px;
            height: 9px;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.8;
            font-size: 14px;
            margin-bottom: 0;
        }

        .footer h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.04em;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.45);
            transition: color .25s ease, padding-left .25s ease;
        }

        .footer-links a:hover {
            color: var(--color-primary);
            padding-left: 4px;
        }

        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 4px;
        }

        .footer-subscribe input {
            flex: 1;
            height: 46px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: rgba(255, 255, 255, 0.05);
            padding: 0 16px;
            font-size: 14px;
            color: #fff;
            transition: border-color .3s ease, box-shadow .3s ease;
        }

        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.3);
        }

        .footer-subscribe input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(200, 255, 22, 0.15);
        }

        .footer-subscribe button {
            height: 46px;
            padding: 0 22px;
            border-radius: 999px;
            border: none;
            background: var(--color-primary);
            color: #10200A;
            font-weight: 700;
            font-size: 14px;
            white-space: nowrap;
            transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
        }

        .footer-subscribe button:hover {
            background: var(--color-primary-strong);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(200, 255, 22, 0.2);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: rgba(255, 255, 255, 0.25);
            font-size: 13px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.3);
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 1199.98px) {
            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-arrow {
                display: none;
            }
        }

        @media (max-width: 991.98px) {
            .main-nav {
                height: 62px;
            }

            .main-nav .container {
                flex-wrap: nowrap;
            }

            .nav-links {
                flex-direction: column;
                gap: 0;
                padding: 16px 8px;
            }

            .nav-links .nav-link {
                padding: 14px 18px;
                border-radius: 12px;
                font-size: 16px;
                display: block;
            }

            .nav-links .nav-link.active::after {
                left: 0;
                transform: none;
                width: 4px;
                height: 20px;
                border-radius: 4px;
                bottom: 50%;
                transform: translateY(50%);
            }

            .nav-right {
                padding: 8px 16px 20px;
                gap: 12px;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
                margin-top: 8px;
            }

            .btn-nav-download {
                width: 100%;
                justify-content: center;
            }

            .category-hero {
                min-height: auto;
                padding: 130px 0 80px;
            }

            .category-hero h1 {
                font-size: clamp(2rem, 5vw, 2.8rem);
            }

            .category-hero p.lead {
                font-size: 16px;
            }

            .section {
                padding: 72px 0;
            }

            .features-section,
            .scenario-section,
            .requirements-section,
            .faq-section,
            .flow-section {
                padding: 72px 0;
            }

            .scenario-content {
                padding-left: 0;
                margin-top: 32px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 767.98px) {
            .flow-grid {
                grid-template-columns: 1fr;
            }

            .req-item {
                flex-wrap: wrap;
                padding: 24px;
                gap: 18px;
            }

            .req-platform {
                flex: 0 0 100%;
            }

            .req-specs {
                flex: 1 1 100%;
                gap: 16px;
            }

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

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

            .category-hero h1 {
                font-size: 2rem;
            }

            .category-hero p.lead {
                font-size: 15px;
            }

            .hero-actions {
                flex-direction: column;
            }

            .hero-actions .btn-primary-custom,
            .hero-actions .btn-outline-custom {
                width: 100%;
                justify-content: center;
            }

            .feature-card {
                padding: 22px 18px;
            }

            .cta-actions {
                flex-direction: column;
            }

            .cta-actions .btn-primary-custom,
            .cta-actions .btn-outline-custom {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .section {
                padding: 56px 0;
            }

            .features-section,
            .scenario-section,
            .requirements-section,
            .faq-section,
            .flow-section {
                padding: 56px 0;
            }

            .category-hero {
                padding: 120px 0 64px;
            }

            .category-hero h1 {
                font-size: 1.75rem;
                line-height: 1.3;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .req-item {
                padding: 20px 18px;
            }

            .req-spec-item {
                font-size: 14px;
            }

            .footer-subscribe {
                flex-direction: column;
            }

            .footer-subscribe button {
                width: 100%;
            }
        }

        @media (max-width: 380px) {
            .navbar-brand {
                font-size: 1.2rem;
            }
        }

        :focus-visible {
            outline: 2px solid var(--color-primary-strong);
            outline-offset: 2px;
        }

/* roulang page: article */
:root {
            --color-primary: #C8FF16;
            --color-primary-strong: #A1D600;
            --color-accent: #FF7A3C;
            --color-bg-dark: #0B0F0F;
            --color-bg-light: #F5F7F5;
            --color-surface: #FFFFFF;
            --color-text-main: #17201D;
            --color-text-muted: #66706B;
            --color-border: rgba(23, 32, 29, 0.10);
            --color-glass-border: rgba(255, 255, 255, 0.14);
            --color-success: #2FBF71;
            --color-warning: #F4B740;
            --color-danger: #E85F3C;
            --radius-card: 18px;
            --radius-btn: 999px;
            --shadow-sm: 0 6px 16px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 14px 30px rgba(0, 0, 0, 0.10);
            --shadow-glow: 0 4px 20px rgba(200, 255, 22, 0.35);
            --transition-base: all 0.3s ease;
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --font-num: "DIN Alternate", "Bahnschrift", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text-main);
            background: var(--color-surface);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
            margin: 0 auto;
        }

        /* 导航 */
        .main-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 76px;
            background: rgba(11, 15, 15, 0.38);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-glass-border);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            z-index: 1050;
            transition: var(--transition-base);
        }

        .main-nav.nav-scrolled {
            background: rgba(9, 12, 12, 0.92);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.22);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .main-nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: #fff;
            text-decoration: none;
            white-space: nowrap;
        }

        .brand-dot {
            width: 8px;
            height: 8px;
            background: var(--color-primary);
            border-radius: 50%;
            box-shadow: 0 0 12px var(--color-primary);
            display: inline-block;
            flex-shrink: 0;
        }

        .brand-highlight {
            color: var(--color-primary);
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 10px;
            padding: 6px 10px;
            line-height: 1;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(200, 255, 22, 0.2);
        }

        .navbar-toggler .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .nav-links .nav-link {
            color: rgba(255, 255, 255, 0.85);
            font-size: 16px;
            font-weight: 500;
            padding: 10px 16px;
            position: relative;
            transition: var(--transition-base);
            border-radius: 8px;
        }

        .nav-links .nav-link::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 4px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transform: scaleX(0);
            transition: var(--transition-base);
        }

        .nav-links .nav-link:hover,
        .nav-links .nav-link.active {
            color: var(--color-primary);
        }

        .nav-links .nav-link:hover::after,
        .nav-links .nav-link.active::after {
            transform: scaleX(1);
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-search-btn {
            background: transparent;
            border: none;
            color: rgba(255, 255, 255, 0.8);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
        }

        .nav-search-btn:hover {
            color: var(--color-primary);
            background: rgba(255, 255, 255, 0.08);
        }

        .btn-nav-download {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 44px;
            padding: 0 22px;
            background: var(--color-primary);
            color: var(--color-bg-dark);
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-nav-download:hover {
            background: var(--color-primary-strong);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
            color: var(--color-bg-dark);
        }

        .btn-nav-download:focus-visible {
            outline: 2px solid var(--color-primary-strong);
            outline-offset: 2px;
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            height: 48px;
            padding: 0 32px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            line-height: 1;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-primary);
            color: var(--color-bg-dark);
            border-radius: var(--radius-btn);
        }

        .btn-primary:hover {
            background: var(--color-primary-strong);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
            color: var(--color-bg-dark);
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid rgba(23, 32, 29, 0.35);
            color: var(--color-text-main);
        }

        .btn-outline:hover {
            border-color: var(--color-primary-strong);
            background: rgba(200, 255, 22, 0.08);
            color: var(--color-text-main);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .btn-block {
            display: flex;
            width: 100%;
            margin-bottom: 10px;
        }

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

        /* 文章横幅 */
        .article-banner {
            background: linear-gradient(180deg, rgba(11, 15, 15, 0.55) 0%, rgba(11, 15, 15, 0.45) 55%, rgba(11, 15, 15, 0.8) 100%), url('/assets/images/backpic/back-2.webp') center 20% / cover no-repeat;
            padding: 150px 0 78px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .article-banner::after {
            content: '';
            position: absolute;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(200, 255, 22, 0.14), transparent 70%);
            top: -80px;
            right: -60px;
            border-radius: 50%;
            pointer-events: none;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 42px;
            position: relative;
            z-index: 1;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.75);
            transition: var(--transition-base);
        }

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

        .breadcrumb-sep {
            opacity: 0.5;
        }

        .breadcrumb-current {
            color: var(--color-primary);
            max-width: 360px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            font-weight: 500;
        }

        .article-heading {
            position: relative;
            z-index: 1;
            max-width: 860px;
        }

        .article-cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(200, 255, 22, 0.15);
            color: var(--color-primary);
            border: 1px solid rgba(200, 255, 22, 0.35);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 18px;
        }

        .article-heading h1 {
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: 0.01em;
            margin-bottom: 20px;
            color: #fff;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px 24px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .meta-item i {
            color: var(--color-primary);
            font-size: 14px;
        }

        /* 文章主体 */
        .article-section {
            padding: 72px 0 80px;
            background: var(--color-bg-light);
        }

        .article-grid {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 48px;
            align-items: start;
        }

        .article-main-col {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            padding: 40px 42px;
            min-width: 0;
        }

        .article-cover {
            margin: 0 0 32px;
            border-radius: 14px;
            overflow: hidden;
        }

        .article-cover img {
            width: 100%;
            height: auto;
            max-height: 480px;
            object-fit: cover;
            display: block;
        }

        .article-richtext {
            max-width: 720px;
            font-size: 16px;
            line-height: 1.9;
            color: var(--color-text-main);
        }

        .article-richtext h2 {
            font-size: clamp(1.4rem, 2vw, 1.7rem);
            font-weight: 700;
            line-height: 1.4;
            margin: 36px 0 16px;
            padding-left: 14px;
            border-left: 4px solid var(--color-primary);
        }

        .article-richtext h3 {
            font-size: 1.28rem;
            font-weight: 600;
            line-height: 1.5;
            margin: 28px 0 12px;
        }

        .article-richtext h4 {
            font-size: 1.12rem;
            font-weight: 600;
            margin: 22px 0 10px;
        }

        .article-richtext p {
            margin-bottom: 18px;
            color: var(--color-text-main);
        }

        .article-richtext a {
            color: var(--color-primary-strong);
            font-weight: 600;
            text-decoration: underline;
            text-underline-offset: 4px;
        }

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

        .article-richtext ul {
            padding-left: 22px;
            margin-bottom: 18px;
        }

        .article-richtext ol {
            padding-left: 22px;
            margin-bottom: 18px;
        }

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

        .article-richtext blockquote {
            border-left: 4px solid var(--color-primary);
            background: rgba(200, 255, 22, 0.08);
            border-radius: 0 12px 12px 0;
            padding: 20px 24px;
            color: var(--color-text-muted);
            font-size: 15px;
            line-height: 1.8;
            margin: 24px 0;
        }

        .article-richtext img {
            border-radius: 14px;
            max-width: 100%;
            height: auto;
            margin: 24px 0;
            display: block;
        }

        .article-richtext figure {
            margin: 24px 0;
        }

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

        .article-richtext table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            border-radius: 12px;
            overflow: hidden;
            background: #141a18;
            color: #f0f3f1;
            font-size: 14px;
        }

        .article-richtext th {
            background: rgba(255, 255, 255, 0.08);
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .article-richtext td {
            padding: 12px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .article-richtext tr:last-child td {
            border-bottom: none;
        }

        .article-richtext pre {
            background: #141a18;
            color: #f0f3f1;
            border-radius: 12px;
            padding: 18px 20px;
            overflow-x: auto;
            margin: 24px 0;
            font-size: 14px;
            line-height: 1.7;
        }

        .article-richtext code {
            font-family: "SF Mono", "Consolas", monospace;
        }

        /* 标签 */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid var(--color-border);
        }

        .tag {
            display: inline-flex;
            align-items: center;
            height: 32px;
            padding: 0 16px;
            border: 1px solid rgba(161, 214, 0, 0.4);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-main);
            background: rgba(200, 255, 22, 0.08);
            transition: var(--transition-base);
        }

        .tag:hover {
            background: rgba(200, 255, 22, 0.2);
            border-color: var(--color-primary-strong);
        }

        /* 上一篇下一篇 */
        .article-pager {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 36px;
        }

        .pager-btn {
            display: flex;
            flex-direction: column;
            gap: 6px;
            padding: 20px 24px;
            border-radius: 14px;
            border: 1.5px solid var(--color-border);
            background: var(--color-bg-light);
            transition: var(--transition-base);
            min-width: 0;
        }

        .pager-btn:hover {
            border-color: var(--color-primary-strong);
            background: rgba(200, 255, 22, 0.08);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .pager-btn.pager-next {
            text-align: right;
            align-items: flex-end;
        }

        .pager-label {
            font-size: 13px;
            color: var(--color-text-muted);
        }

        .pager-btn strong {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-main);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 100%;
        }

        /* 侧边栏 */
        .article-sidebar {
            position: sticky;
            top: 96px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .sidebar-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            padding: 26px;
            transition: var(--transition-base);
        }

        .sidebar-card:hover {
            box-shadow: var(--shadow-lg);
        }

        .sidebar-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .sidebar-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            margin-bottom: 16px;
            line-height: 1.7;
        }

        .sidebar-download {
            background: var(--color-bg-dark);
            border-color: transparent;
            color: #fff;
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .sidebar-download::before {
            content: '';
            position: absolute;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(200, 255, 22, 0.18), transparent 70%);
            top: -40px;
            right: -40px;
            border-radius: 50%;
        }

        .sidebar-download h3 {
            color: #fff;
        }

        .sidebar-download p {
            color: rgba(255, 255, 255, 0.55);
        }

        .sidebar-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(200, 255, 22, 0.14);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            color: var(--color-primary);
            font-size: 22px;
        }

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

        .req-list li {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid var(--color-border);
            font-size: 14px;
        }

        .req-list li:last-child {
            border-bottom: none;
        }

        .req-list span {
            color: var(--color-text-main);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .req-list em {
            font-style: normal;
            color: var(--color-text-muted);
            font-size: 13px;
            font-family: var(--font-num);
        }

        /* 相关推荐 */
        .related-posts {
            padding: 80px 0;
            background: var(--color-bg-light);
            border-top: 1px solid var(--color-border);
        }

        .section-heading {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 32px;
        }

        .section-heading h2 {
            font-size: clamp(1.6rem, 2.5vw, 2.2rem);
            font-weight: 700;
            margin: 0;
        }

        .section-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary-strong);
            transition: var(--transition-base);
        }

        .section-link:hover {
            color: var(--color-primary);
            gap: 12px;
        }

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

        .related-card {
            display: flex;
            flex-direction: column;
            background: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            text-decoration: none;
            color: var(--color-text-main);
            transition: var(--transition-base);
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .related-thumb {
            height: 160px;
            overflow: hidden;
        }

        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .related-card:hover .related-thumb img {
            transform: scale(1.04);
        }

        .related-info {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-info h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .related-info p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .related-date {
            font-size: 13px;
            color: var(--color-text-muted);
        }

        /* FAQ */
        .faq-section {
            padding: 80px 0;
            background: var(--color-surface);
        }

        .section-heading-center {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 44px;
        }

        .section-heading-center h2 {
            font-size: clamp(1.6rem, 2.5vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 10px;
        }

        .section-heading-center p {
            color: var(--color-text-muted);
            font-size: 15px;
        }

        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-accordion .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: 16px !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
        }

        .faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(200, 255, 22, 0.5);
            box-shadow: 0 6px 20px rgba(200, 255, 22, 0.08);
        }

        .faq-accordion .accordion-button {
            background: var(--color-surface);
            color: var(--color-text-main);
            font-size: 16px;
            font-weight: 600;
            padding: 18px 24px;
            box-shadow: none;
            border: none;
            transition: var(--transition-base);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(200, 255, 22, 0.06);
            color: var(--color-text-main);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            outline: none;
        }

        .faq-accordion .accordion-button::after {
            display: none;
        }

        .faq-indicator {
            width: 24px;
            height: 24px;
            border: 2px solid var(--color-primary-strong);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-right: 14px;
            flex-shrink: 0;
            position: relative;
            transition: var(--transition-base);
        }

        .faq-indicator::before {
            content: '';
            width: 8px;
            height: 2px;
            background: var(--color-primary-strong);
            border-radius: 2px;
        }

        .faq-indicator::after {
            content: '';
            position: absolute;
            width: 2px;
            height: 8px;
            background: var(--color-primary-strong);
            border-radius: 2px;
            transition: var(--transition-base);
        }

        .accordion-button:not(.collapsed) .faq-indicator::after {
            display: none;
        }

        .faq-accordion .accordion-body {
            padding: 0 24px 22px;
            color: var(--color-text-muted);
            font-size: 15px;
            line-height: 1.85;
        }

        /* CTA */
        .cta-band {
            background: var(--color-bg-dark);
            padding: 72px 0 76px;
            text-align: center;
            border-top: 1px solid var(--color-glass-border);
            position: relative;
            overflow: hidden;
        }

        .cta-band::before {
            content: '';
            position: absolute;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(200, 255, 22, 0.18), transparent 70%);
            top: -120px;
            right: -80px;
            border-radius: 50%;
        }

        .cta-band::after {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 122, 60, 0.08), transparent 70%);
            bottom: -100px;
            left: -60px;
            border-radius: 50%;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: clamp(1.7rem, 3vw, 2.4rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 28px;
            font-size: 15px;
        }

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

        /* Footer */
        .footer {
            background: #070909;
            color: rgba(255, 255, 255, 0.5);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.4);
            max-width: 320px;
        }

        .footer h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            transition: var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--color-primary);
            padding-left: 4px;
        }

        .footer-subscribe {
            display: flex;
            gap: 8px;
        }

        .footer-subscribe input {
            flex: 1;
            height: 44px;
            border-radius: 12px;
            border: 1.5px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.06);
            padding: 0 16px;
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: var(--transition-base);
        }

        .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-subscribe input:focus {
            border-color: var(--color-primary-strong);
            box-shadow: 0 0 0 4px rgba(200, 255, 22, 0.12);
        }

        .footer-subscribe button {
            height: 44px;
            padding: 0 22px;
            background: var(--color-primary);
            color: var(--color-bg-dark);
            border: none;
            border-radius: 999px;
            font-weight: 700;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .footer-subscribe button:hover {
            background: var(--color-primary-strong);
            box-shadow: var(--shadow-glow);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px 0 28px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.3);
        }

        /* 空状态 */
        .not-found-panel {
            background: var(--color-surface);
            border: 2px dashed var(--color-border);
            border-radius: 24px;
            padding: 80px 24px;
            text-align: center;
            max-width: 560px;
            margin: 0 auto;
        }

        .not-found-icon {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: rgba(200, 255, 22, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: var(--color-primary-strong);
            font-size: 30px;
        }

        .not-found-panel h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .not-found-panel p {
            color: var(--color-text-muted);
            font-size: 15px;
            margin-bottom: 24px;
        }

        /* 响应式 */
        @media (max-width: 991.98px) {
            .main-nav {
                height: 62px;
            }

            .navbar-collapse {
                position: fixed;
                top: 62px;
                left: 0;
                right: 0;
                background: rgba(9, 12, 12, 0.97);
                backdrop-filter: blur(14px);
                -webkit-backdrop-filter: blur(14px);
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--color-glass-border);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            }

            .nav-links {
                flex-direction: column;
                gap: 0;
                margin-bottom: 16px;
            }

            .nav-links .nav-link {
                padding: 14px 8px;
                font-size: 17px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }

            .nav-links .nav-link::after {
                display: none;
            }

            .nav-right {
                display: flex;
                justify-content: space-between;
                padding-top: 12px;
            }

            .article-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .article-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .sidebar-card {
                flex: 1;
                min-width: 240px;
            }

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

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

        @media (max-width: 767.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .article-banner {
                padding: 130px 0 48px;
            }

            .breadcrumb-nav {
                margin-bottom: 28px;
                font-size: 13px;
            }

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

            .article-section {
                padding: 48px 0;
            }

            .article-main-col {
                padding: 24px 18px;
                border-radius: 14px;
            }

            .article-pager {
                grid-template-columns: 1fr;
            }

            .pager-btn.pager-next {
                text-align: left;
                align-items: flex-start;
            }

            .related-posts {
                padding: 48px 0;
            }

            .section-heading {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .faq-section {
                padding: 48px 0;
            }

            .faq-accordion .accordion-button {
                font-size: 15px;
                padding: 16px 18px;
            }

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

            .cta-btns {
                flex-direction: column;
            }

            .cta-btns .btn {
                width: 100%;
            }

            .footer {
                padding-top: 48px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
                font-size: 12px;
            }

            .not-found-panel {
                padding: 48px 20px;
            }
        }

        @media (max-width: 575.98px) {
            .related-grid {
                grid-template-columns: 1fr;
            }

            .article-richtext {
                font-size: 15px;
                line-height: 1.85;
            }

            .article-richtext table {
                display: block;
                overflow-x: auto;
                white-space: nowrap;
            }

            .navbar-brand {
                font-size: 18px;
            }

            .breadcrumb-current {
                max-width: 220px;
            }
        }