/* roulang page: index */
:root {
            --bg-primary: #0B0E1E;
            --bg-secondary: #111629;
            --surface-glass: rgba(255, 255, 255, 0.06);
            --surface-glass-2: rgba(255, 255, 255, 0.08);
            --stroke-glass: rgba(255, 255, 255, 0.14);
            --text-primary: #EDF1FF;
            --text-secondary: #9AA3C0;
            --text-tertiary: #6B7394;
            --accent: #3D6EF7;
            --accent-2: #8B7CF7;
            --gradient-primary: linear-gradient(135deg, #3D6EF7 0%, #8B7CF7 100%);
            --glow: 0 0 28px rgba(61, 110, 247, 0.45);
            --star-glow: 0 0 12px rgba(139, 124, 247, 0.6);
            --radius-sm: 10px;
            --radius-md: 18px;
            --radius-lg: 28px;
            --success: #2DD4BF;
            --warning: #F5A97F;
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "HarmonyOS Sans SC", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

        button {
            border: none;
            background: none;
        }

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

        section {
            padding: 96px 0;
            position: relative;
        }

        @media (max-width: 991px) {
            section {
                padding: 64px 0;
            }
        }

        @media (max-width: 767px) {
            section {
                padding: 48px 0;
            }
        }

        /* 星空背景 */
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background:
                radial-gradient(ellipse 70% 50% at 15% 0%, rgba(61, 110, 247, 0.13), transparent),
                radial-gradient(ellipse 50% 40% at 85% 15%, rgba(139, 124, 247, 0.10), transparent),
                radial-gradient(ellipse 40% 30% at 50% 100%, rgba(61, 110, 247, 0.06), transparent);
            pointer-events: none;
            z-index: 0;
        }

        /* ===== 导航 ===== */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 18px 0;
            transition: all 0.35s ease;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            background: transparent;
        }

        .site-nav.scrolled {
            background: rgba(11, 14, 30, 0.85);
            backdrop-filter: blur(16px) saturate(140%);
            -webkit-backdrop-filter: blur(16px) saturate(140%);
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

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

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            white-space: nowrap;
            transition: opacity 0.2s;
        }

        .nav-logo:hover {
            opacity: 0.85;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 0.9rem;
            box-shadow: var(--glow);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-link-item {
            position: relative;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 2px;
            transition: color 0.25s;
        }

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

        .nav-link-item.active {
            color: var(--text-primary);
        }

        .nav-link-item.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 2px;
            background: var(--gradient-primary);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(61, 110, 247, 0.4);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 22px;
            border-radius: 12px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 0.875rem;
            font-weight: 600;
            box-shadow: 0 4px 20px rgba(61, 110, 247, 0.35);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-cta:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 32px rgba(61, 110, 247, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            z-index: 1001;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        @media (max-width: 991px) {
            .nav-links {
                display: none;
                position: fixed;
                top: 64px;
                left: 16px;
                right: 16px;
                flex-direction: column;
                align-items: stretch;
                background: rgba(17, 22, 41, 0.96);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-radius: var(--radius-md);
                border: 1px solid var(--stroke-glass);
                padding: 20px;
                gap: 12px;
                box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
            }

            .nav-links.show {
                display: flex;
            }

            .nav-link-item {
                padding: 10px 14px;
                border-radius: 12px;
                font-size: 1rem;
            }

            .nav-link-item:hover {
                background: rgba(255, 255, 255, 0.05);
            }

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

            .nav-link-item.active {
                background: rgba(61, 110, 247, 0.15);
            }

            .nav-cta {
                margin-top: 6px;
                justify-content: center;
            }

            .nav-toggle {
                display: flex;
            }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 140px 0 100px;
            overflow: hidden;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 14, 30, 0.72) 0%, rgba(11, 14, 30, 0.55) 50%, var(--bg-primary) 100%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background:
                radial-gradient(2px 2px at 10% 30%, rgba(255, 255, 255, 0.6), transparent),
                radial-gradient(1.5px 1.5px at 25% 70%, rgba(255, 255, 255, 0.5), transparent),
                radial-gradient(2px 2px at 40% 20%, rgba(255, 255, 255, 0.4), transparent),
                radial-gradient(1px 1px at 60% 45%, rgba(255, 255, 255, 0.5), transparent),
                radial-gradient(2px 2px at 75% 25%, rgba(255, 255, 255, 0.45), transparent),
                radial-gradient(1.5px 1.5px at 88% 55%, rgba(255, 255, 255, 0.35), transparent),
                radial-gradient(1px 1px at 15% 85%, rgba(255, 255, 255, 0.3), transparent),
                radial-gradient(2px 2px at 65% 75%, rgba(255, 255, 255, 0.4), transparent);
            z-index: 1;
            pointer-events: none;
        }

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

        .hero-content {
            display: flex;
            align-items: center;
            gap: 60px;
        }

        .hero-left {
            flex: 1.1;
        }

        .hero-right {
            flex: 0.9;
            display: flex;
            justify-content: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(61, 110, 247, 0.15);
            border: 1px solid rgba(61, 110, 247, 0.35);
            color: var(--text-primary);
            border-radius: 100px;
            padding: 6px 16px;
            font-size: 0.8125rem;
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }

        .hero-badge i {
            color: var(--accent-2);
        }

        .hero h1 {
            font-size: clamp(2.2rem, 4.5vw, 3.4rem);
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #EDF1FF 0%, #B8C4E8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-sub {
            font-size: 1.0625rem;
            color: var(--text-secondary);
            max-width: 520px;
            margin-bottom: 32px;
            line-height: 1.75;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 22px;
        }

        .btn-primary-grad {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 13px 32px;
            border-radius: 12px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            border: none;
            box-shadow: 0 4px 20px rgba(61, 110, 247, 0.35);
            transition: var(--transition);
            cursor: pointer;
        }

        .btn-primary-grad:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 32px rgba(61, 110, 247, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-primary-grad:active {
            transform: translateY(0);
            box-shadow: 0 4px 14px rgba(61, 110, 247, 0.3);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 13px 32px;
            border-radius: 12px;
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.25);
            font-size: 1rem;
            font-weight: 500;
            transition: var(--transition);
            cursor: pointer;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.45);
            color: #fff;
        }

        .hero-security {
            display: flex;
            align-items: center;
            gap: 18px;
            color: var(--text-tertiary);
            font-size: 0.8125rem;
        }

        .hero-security span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .hero-security i {
            color: var(--success);
            font-size: 0.9rem;
        }

        /* 登录示意卡 */
        .login-card {
            width: 100%;
            max-width: 360px;
            background: rgba(11, 14, 30, 0.65);
            backdrop-filter: blur(20px) saturate(140%);
            -webkit-backdrop-filter: blur(20px) saturate(140%);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            border: 1px solid var(--stroke-glass);
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45), var(--glow);
            position: relative;
            overflow: hidden;
        }

        .login-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.3), rgba(61, 110, 247, 0.5), rgba(255, 255, 255, 0.1));
        }

        .login-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
        }

        .login-card-title {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .login-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.75rem;
            color: var(--success);
            background: rgba(45, 212, 191, 0.12);
            border: 1px solid rgba(45, 212, 191, 0.25);
            border-radius: 100px;
            padding: 3px 12px;
            font-weight: 500;
        }

        .login-card .form-control {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 12px;
            color: var(--text-primary);
            padding: 13px 16px;
            font-size: 0.875rem;
            transition: var(--transition);
            margin-bottom: 14px;
        }

        .login-card .form-control:focus {
            background: rgba(255, 255, 255, 0.09);
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(61, 110, 247, 0.2);
            color: var(--text-primary);
        }

        .login-card .form-control::placeholder {
            color: var(--text-tertiary);
            font-size: 0.84375rem;
        }

        .login-card .btn-login-card {
            width: 100%;
            padding: 12px;
            border-radius: 12px;
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.9375rem;
            box-shadow: 0 4px 20px rgba(61, 110, 247, 0.3);
            transition: var(--transition);
            margin-top: 8px;
            border: none;
            cursor: pointer;
        }

        .login-card .btn-login-card:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 28px rgba(61, 110, 247, 0.5);
        }

        .login-card-foot {
            margin-top: 20px;
            text-align: center;
            font-size: 0.75rem;
            color: var(--text-tertiary);
            display: flex;
            justify-content: space-between;
        }

        .login-card-foot a {
            color: var(--accent-2);
            transition: opacity 0.2s;
        }

        .login-card-foot a:hover {
            opacity: 0.75;
        }

        @media (max-width: 991px) {
            .hero-content {
                flex-direction: column;
                gap: 40px;
                text-align: center;
            }

            .hero-sub {
                margin-left: auto;
                margin-right: auto;
            }

            .hero-btns {
                justify-content: center;
            }

            .hero-security {
                justify-content: center;
                flex-wrap: wrap;
            }

            .hero-right {
                display: none;
            }

            .hero {
                padding-top: 120px;
                min-height: 80vh;
            }
        }

        @media (max-width: 767px) {
            .hero {
                min-height: 75vh;
                padding-top: 110px;
            }

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

            .hero-sub {
                font-size: 0.9375rem;
            }

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

            .btn-primary-grad,
            .btn-outline {
                justify-content: center;
            }
        }

        /* ===== 通用板块头 ===== */
        .section-head {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-badge {
            display: inline-block;
            padding: 5px 18px;
            border-radius: 100px;
            background: rgba(61, 110, 247, 0.12);
            border: 1px solid rgba(61, 110, 247, 0.3);
            color: #a5b4fc;
            font-size: 0.8125rem;
            font-weight: 500;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .section-head h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            position: relative;
        }

        .section-head h2::after {
            content: '';
            display: block;
            width: 72px;
            height: 3px;
            background: var(--gradient-primary);
            border-radius: 3px;
            margin: 16px auto 0;
            box-shadow: 0 0 12px rgba(61, 110, 247, 0.4);
        }

        .section-head p {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
            margin-top: 16px;
        }

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

        /* ===== 工具价值区 ===== */
        .value-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .value-card {
            background: var(--surface-glass);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            position: relative;
            overflow: hidden;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .value-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0.04));
        }

        .value-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3), 0 0 20px rgba(61, 110, 247, 0.15);
        }

        .value-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 1rem;
            box-shadow: var(--glow);
            margin-bottom: 18px;
            transition: transform 0.3s ease;
        }

        .value-card:hover .value-icon {
            transform: scale(1.1);
        }

        .value-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .value-card p {
            color: var(--text-secondary);
            font-size: 0.9375rem;
            line-height: 1.65;
            margin-bottom: 0;
        }

        @media (max-width: 991px) {
            .value-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 767px) {
            .value-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 轮播 ===== */
        .carousel-section {
            background: var(--bg-secondary);
        }

        .carousel-glass {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: rgba(17, 22, 41, 0.8);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--stroke-glass);
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
            position: relative;
            max-width: 880px;
            margin: 0 auto;
        }

        .carousel-glass .carousel-item {
            position: relative;
        }

        .carousel-img-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: #0d1020;
        }

        .carousel-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.85;
        }

        .carousel-caption-custom {
            padding: 18px 24px;
            text-align: center;
            color: var(--text-secondary);
            font-size: 0.875rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            background: rgba(17, 22, 41, 0.6);
        }

        .carousel-glass .carousel-control-prev,
        .carousel-glass .carousel-control-next {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            top: 50%;
            transform: translateY(-50%);
            margin: 0 20px;
            opacity: 1;
            transition: var(--transition);
            position: absolute;
            z-index: 5;
        }

        .carousel-glass .carousel-control-prev:hover,
        .carousel-glass .carousel-control-next:hover {
            background: rgba(255, 255, 255, 0.18);
            box-shadow: 0 0 20px rgba(61, 110, 247, 0.3);
        }

        .carousel-glass .carousel-control-prev {
            left: 0;
        }

        .carousel-glass .carousel-control-next {
            right: 0;
        }

        .carousel-glass .carousel-indicators {
            bottom: -36px;
            gap: 8px;
        }

        .carousel-glass .carousel-indicators button {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.25);
            border: none;
            transition: var(--transition);
        }

        .carousel-glass .carousel-indicators button.active {
            background: var(--gradient-primary);
            box-shadow: 0 0 12px rgba(61, 110, 247, 0.5);
            transform: scale(1.15);
        }

        @media (max-width: 767px) {
            .carousel-glass .carousel-control-prev,
            .carousel-glass .carousel-control-next {
                display: none;
            }
        }

        /* ===== 系统要求 ===== */
        .sys-card {
            background: var(--surface-glass);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border-radius: var(--radius-md);
            padding: 36px 32px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            height: 100%;
            transition: var(--transition);
        }

        .sys-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3), 0 0 24px rgba(61, 110, 247, 0.12);
        }

        .sys-top {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 26px;
        }

        .sys-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 1.25rem;
            box-shadow: var(--glow);
        }

        .sys-top h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 0;
        }

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

        .sys-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.9375rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .sys-list li span:first-of-type {
            color: var(--text-primary);
            font-weight: 500;
        }

        .sys-check {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: rgba(45, 212, 191, 0.12);
            border: 1px solid rgba(45, 212, 191, 0.35);
            color: var(--success);
            font-size: 0.625rem;
            flex-shrink: 0;
            margin-top: 4px;
        }

        /* ===== 评价墙 ===== */
        .review-section {
            background: var(--bg-secondary);
        }

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

        .review-card {
            background: var(--surface-glass-2);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border-radius: var(--radius-md);
            padding: 28px 26px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }

        .review-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
        }

        .review-top {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px;
        }

        .review-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--gradient-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.9375rem;
            font-weight: 600;
            flex-shrink: 0;
        }

        .review-name {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .review-role {
            font-size: 0.75rem;
            color: var(--text-tertiary);
        }

        .review-stars {
            display: flex;
            gap: 2px;
            color: #FBBF24;
            font-size: 0.8125rem;
            margin-bottom: 14px;
        }

        .review-stars i {
            text-shadow: 0 0 8px rgba(251, 191, 36, 0.3);
        }

        .review-text {
            font-size: 0.90625rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        @media (max-width: 991px) {
            .review-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 767px) {
            .review-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 下载区 ===== */
        .download-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 28px;
        }

        .download-card {
            position: relative;
            background: var(--surface-glass);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 28px 20px;
            text-align: center;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }

        .download-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3), 0 0 24px rgba(61, 110, 247, 0.18);
            border-color: rgba(61, 110, 247, 0.3);
        }

        .download-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: rgba(61, 110, 247, 0.12);
            border: 1px solid rgba(61, 110, 247, 0.25);
            color: var(--text-primary);
            font-size: 1.35rem;
            transition: var(--transition);
            margin-bottom: 8px;
        }

        .download-card:hover .download-icon {
            background: var(--gradient-primary);
            color: #fff;
            box-shadow: var(--glow);
        }

        .download-name {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .download-ver {
            font-size: 0.75rem;
            color: var(--text-tertiary);
        }

        .qr-popover {
            position: absolute;
            bottom: calc(100% + 16px);
            left: 50%;
            transform: translateX(-50%) scale(0.9);
            background: rgba(17, 22, 41, 0.96);
            backdrop-filter: blur(16px);
            border-radius: 14px;
            padding: 16px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 20px 48px rgba(0, 0, 0, 0.5);
            opacity: 0;
            pointer-events: none;
            transition: all 0.3s ease;
            z-index: 10;
        }

        .qr-placeholder {
            width: 108px;
            height: 108px;
            background: repeating-conic-gradient(rgba(255, 255, 255, 0.12) 0% 25%, transparent 0% 50%) 50% / 12px 12px;
            border-radius: 8px;
            margin-bottom: 8px;
        }

        .qr-popover small {
            display: block;
            text-align: center;
            color: var(--text-secondary);
            font-size: 0.75rem;
        }

        .download-card:hover .qr-popover {
            opacity: 1;
            transform: translateX(-50%) scale(1);
        }

        .download-security {
            text-align: center;
            color: var(--text-tertiary);
            font-size: 0.84375rem;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

        .download-security i {
            color: var(--success);
        }

        @media (max-width: 991px) {
            .download-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 767px) {
            .download-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 460px) {
            .download-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 资讯列表 ===== */
        .news-section {
            background: var(--bg-secondary);
        }

        .news-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-card {
            display: flex;
            gap: 22px;
            background: var(--surface-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-radius: var(--radius-md);
            padding: 24px 26px;
            border: 1px solid rgba(255, 255, 255, 0.07);
            transition: var(--transition);
        }

        .news-card:hover {
            background: rgba(255, 255, 255, 0.10);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
        }

        .news-date {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            width: 72px;
            height: 72px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, 0.10);
            flex-shrink: 0;
            transition: var(--transition);
        }

        .news-card:hover .news-date {
            border-color: rgba(61, 110, 247, 0.4);
            box-shadow: 0 0 16px rgba(61, 110, 247, 0.15);
        }

        .news-day {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.2;
        }

        .news-month {
            font-size: 0.75rem;
            color: var(--text-tertiary);
        }

        .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-title {
            font-size: 1.1rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 6px;
        }

        .news-title a {
            color: var(--text-primary);
            transition: color 0.2s;
        }

        .news-title a:hover {
            color: var(--accent-2);
        }

        .news-summary {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8125rem;
            color: var(--text-tertiary);
        }

        .news-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 4px;
            background: rgba(61, 110, 247, 0.2);
            border: 1px solid rgba(61, 110, 247, 0.3);
            color: #a5b4fc;
            font-size: 0.75rem;
            font-weight: 500;
            transition: var(--transition);
        }

        .news-tag:hover {
            background: var(--gradient-primary);
            color: #fff;
        }

        .news-empty {
            text-align: center;
            padding: 60px 24px;
            border: 1px dashed rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            color: var(--text-tertiary);
            font-size: 0.9375rem;
            background: rgba(255, 255, 255, 0.02);
            max-width: 860px;
            margin: 0 auto;
        }

        @media (max-width: 767px) {
            .news-card {
                flex-direction: column;
                gap: 14px;
                padding: 20px;
            }

            .news-date {
                flex-direction: row;
                width: auto;
                height: auto;
                gap: 8px;
                padding: 6px 16px;
                border-radius: 12px;
            }

            .news-day {
                font-size: 1.125rem;
            }

            .news-month {
                font-size: 0.75rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-accordion .accordion-item {
            background: var(--surface-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-accordion .accordion-item:focus-within {
            border-color: rgba(61, 110, 247, 0.4);
        }

        .faq-accordion .accordion-item.is-active {
            border-color: rgba(61, 110, 247, 0.45);
            box-shadow: 0 0 24px rgba(61, 110, 247, 0.1);
        }

        .faq-accordion .accordion-header {
            margin: 0;
        }

        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 600;
            padding: 22px 26px;
            box-shadow: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-radius: 16px;
        }

        .faq-accordion .accordion-button::after {
            content: '+';
            background: none;
            font-size: 1.4rem;
            font-weight: 300;
            color: var(--accent-2);
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(139, 124, 247, 0.1);
            transition: transform 0.3s ease;
            line-height: 1;
            flex-shrink: 0;
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            background: var(--gradient-primary);
            color: #fff;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(61, 110, 247, 0.06);
            color: var(--text-primary);
            box-shadow: none;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(61, 110, 247, 0.15);
        }

        .faq-accordion .accordion-body {
            padding: 0 26px 24px;
            color: var(--text-secondary);
            font-size: 0.9375rem;
            line-height: 1.7;
            background: transparent;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 16px;
        }

        /* ===== CTA区域 ===== */
        .cta-section {
            position: relative;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            padding: 100px 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(11, 14, 30, 0.82) 40%, rgba(11, 14, 30, 0.82) 60%, var(--bg-primary) 100%);
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 18px;
        }

        .cta-content p {
            color: var(--text-secondary);
            margin-bottom: 32px;
        }

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

        /* ===== 页脚 ===== */
        .site-footer {
            background: #080B18;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 72px 0 0;
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(61, 110, 247, 0.4), rgba(139, 124, 247, 0.4), transparent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .footer-brand p {
            color: var(--text-tertiary);
            font-size: 0.875rem;
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-title {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--gradient-primary);
            border-radius: 2px;
        }

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

        .footer-links a {
            color: var(--text-tertiary);
            font-size: 0.875rem;
            transition: color 0.2s;
        }

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

        .footer-contact {
            color: var(--text-tertiary);
            font-size: 0.875rem;
            line-height: 2;
        }

        .footer-contact a {
            color: var(--text-tertiary);
            transition: color 0.2s;
        }

        .footer-contact a:hover {
            color: var(--accent-2);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px 0;
            font-size: 0.8125rem;
            color: var(--text-tertiary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }

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

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-tertiary);
            font-size: 0.8125rem;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--gradient-primary);
            color: #fff;
            transform: translateY(-2px);
        }

        @media (max-width: 991px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

        /* ===== 通用辅助 ===== */
        .back-to-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(17, 22, 41, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            z-index: 999;
            opacity: 0;
            pointer-events: none;
            font-size: 0.9rem;
            backdrop-filter: blur(10px);
        }

        .back-to-top.show {
            opacity: 1;
            pointer-events: auto;
        }

        .back-to-top:hover {
            background: var(--gradient-primary);
            color: #fff;
            border-color: transparent;
            transform: translateY(-2px);
        }

        @media (max-width: 767px) {
            .back-to-top {
                bottom: 20px;
                right: 20px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0B0E1E;
            --bg-secondary: #111629;
            --surface-glass: rgba(255, 255, 255, 0.06);
            --stroke-glass: rgba(255, 255, 255, 0.14);
            --text-primary: #EDF1FF;
            --text-secondary: #9AA3C0;
            --text-tertiary: #6B7394;
            --accent: #3D6EF7;
            --accent-2: #8B7CF7;
            --gradient-primary: linear-gradient(135deg, #3D6EF7 0%, #8B7CF7 100%);
            --glow: 0 0 28px rgba(61, 110, 247, 0.45);
            --star-glow: 0 0 12px rgba(139, 124, 247, 0.6);
            --radius-sm: 10px;
            --radius-md: 18px;
            --radius-lg: 28px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "HarmonyOS Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 1rem;
            overflow-x: hidden;
            background-image:
                radial-gradient(ellipse 60% 40% at -10% 0%, rgba(61, 110, 247, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse 40% 30% at 110% 10%, rgba(139, 124, 247, 0.1) 0%, transparent 60%);
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 0;
            background-image:
                radial-gradient(2px 2px at 10% 20%, rgba(255, 255, 255, 0.35) 0%, transparent 50%),
                radial-gradient(1px 1px at 25% 60%, rgba(255, 255, 255, 0.25) 0%, transparent 50%),
                radial-gradient(1.5px 1.5px at 70% 35%, rgba(255, 255, 255, 0.2) 0%, transparent 50%),
                radial-gradient(1px 1px at 85% 70%, rgba(255, 255, 255, 0.3) 0%, transparent 50%),
                radial-gradient(2px 2px at 45% 80%, rgba(255, 255, 255, 0.15) 0%, transparent 50%),
                radial-gradient(1px 1px at 60% 15%, rgba(255, 255, 255, 0.25) 0%, transparent 50%);
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }

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

        .container {
            max-width: 1200px;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            background: rgba(11, 14, 30, 0.25);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: all 0.3s ease;
            border-bottom: 1px solid transparent;
        }

        .site-nav.scrolled {
            background: rgba(11, 14, 30, 0.85);
            border-bottom-color: rgba(255, 255, 255, 0.08);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.15rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--gradient-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: #fff;
            box-shadow: var(--glow);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }

        .nav-link-item {
            display: inline-block;
            padding: 0.55rem 1rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            position: relative;
            transition: all 0.25s ease;
        }

        .nav-link-item:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-link-item.active {
            color: var(--text-primary);
            background: rgba(61, 110, 247, 0.12);
        }

        .nav-link-item.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            border-radius: 2px;
            background: var(--gradient-primary);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.55rem 1.4rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: var(--gradient-primary);
            border-radius: 12px;
            margin-left: 12px;
            box-shadow: 0 4px 20px rgba(61, 110, 247, 0.35);
            transition: all 0.25s ease;
            border: none;
        }

        .nav-cta:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 32px rgba(61, 110, 247, 0.55);
            transform: translateY(-1px);
            color: #fff;
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 0 16px rgba(61, 110, 247, 0.35);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 42px;
            height: 42px;
            background: transparent;
            border: 1px solid var(--stroke-glass);
            border-radius: 10px;
            cursor: pointer;
            padding: 8px;
            transition: all 0.25s ease;
        }

        .nav-toggle span {
            display: block;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .article-page {
            padding-top: 72px;
            position: relative;
            z-index: 1;
        }

        .breadcrumb-bar {
            padding: 2rem 0 1rem;
        }

        .breadcrumb-bar .breadcrumb {
            margin-bottom: 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .breadcrumb-bar .breadcrumb a {
            color: var(--text-secondary);
        }

        .breadcrumb-bar .breadcrumb a:hover {
            color: var(--accent);
        }

        .breadcrumb-bar .breadcrumb-item.active {
            color: var(--text-tertiary);
        }

        .breadcrumb-bar .breadcrumb-item+.breadcrumb-item::before {
            color: var(--text-tertiary);
        }

        .article-header {
            padding: 2rem 0 3rem;
            position: relative;
        }

        .article-header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80%;
            max-width: 760px;
            height: 1px;
            background: linear-gradient(90deg, transparent 0%, rgba(61, 110, 247, 0.4) 30%, rgba(139, 124, 247, 0.4) 70%, transparent 100%);
        }

        .article-header .article-title {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 1.25rem;
            color: var(--text-primary);
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1.25rem;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

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

        .article-meta .meta-item i {
            color: var(--accent);
            font-size: 0.85rem;
        }

        .article-meta .meta-badge {
            display: inline-block;
            padding: 0.2rem 0.8rem;
            font-size: 0.75rem;
            border-radius: 6px;
            background: rgba(61, 110, 247, 0.2);
            border: 1px solid rgba(61, 110, 247, 0.3);
            color: var(--text-primary);
            font-weight: 500;
        }

        .article-body-wrap {
            padding: 3.5rem 0 4rem;
        }

        .article-body {
            max-width: 760px;
            margin: 0 auto;
        }

        .article-content {
            font-size: 1.02rem;
            line-height: 1.85;
            color: var(--text-primary);
            word-wrap: break-word;
        }

        .article-content h2 {
            font-size: clamp(1.4rem, 2.5vw, 1.8rem);
            font-weight: 700;
            margin: 2.5rem 0 1.25rem;
            color: var(--text-primary);
            line-height: 1.4;
            padding-left: 1rem;
            border-left: 3px solid;
            border-image: linear-gradient(180deg, var(--accent), var(--accent-2)) 1;
            border-image-slice: 1;
        }

        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 2rem 0 1rem;
            color: var(--text-primary);
            line-height: 1.5;
        }

        .article-content p {
            margin-bottom: 1.4rem;
            color: rgba(237, 241, 255, 0.88);
        }

        .article-content ul,
        .article-content ol {
            margin: 1rem 0 1.5rem 1.25rem;
            color: rgba(237, 241, 255, 0.85);
        }

        .article-content li {
            margin-bottom: 0.55rem;
        }

        .article-content blockquote {
            margin: 1.8rem 0;
            padding: 1.25rem 1.5rem;
            border-left: 3px solid;
            border-image: linear-gradient(180deg, var(--accent), var(--accent-2)) 1;
            border-image-slice: 1;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-secondary);
        }

        .article-content img {
            border-radius: 16px;
            max-width: 100%;
            margin: 1.5rem 0;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
        }

        .article-content img+em {
            display: block;
            text-align: center;
            font-size: 0.875rem;
            color: var(--text-tertiary);
            margin-top: -0.5rem;
            font-style: normal;
        }

        .article-content code {
            background: rgba(255, 255, 255, 0.08);
            padding: 0.15rem 0.45rem;
            border-radius: 6px;
            font-family: "SF Mono", Consolas, "Courier New", monospace;
            font-size: 0.9em;
            color: var(--accent-2);
        }

        .article-content pre {
            background: #0D1128;
            padding: 1.5rem;
            border-radius: var(--radius-md);
            overflow-x: auto;
            margin: 1.5rem 0;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .article-content pre code {
            background: transparent;
            padding: 0;
            color: var(--text-primary);
        }

        .article-content a {
            color: var(--accent);
            border-bottom: 1px solid rgba(61, 110, 247, 0.4);
        }

        .article-content a:hover {
            color: var(--accent-2);
            border-bottom-color: var(--accent-2);
        }

        .not-found-card {
            max-width: 640px;
            margin: 0 auto;
            padding: 4rem 2rem;
            text-align: center;
            background: var(--surface-glass);
            border: 1px dashed var(--stroke-glass);
            border-radius: var(--radius-lg);
        }

        .not-found-card .not-found-icon {
            font-size: 3.5rem;
            color: var(--accent);
            margin-bottom: 1.5rem;
            display: block;
        }

        .not-found-card h2 {
            font-size: 1.6rem;
            margin-bottom: 0.8rem;
        }

        .not-found-card p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }

        .btn-back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.7rem 1.8rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            background: var(--gradient-primary);
            border-radius: 12px;
            border: none;
            box-shadow: 0 4px 20px rgba(61, 110, 247, 0.35);
            transition: all 0.25s ease;
        }

        .btn-back-home:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 32px rgba(61, 110, 247, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }

        .related-section {
            padding: 4rem 0;
            position: relative;
        }

        .related-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80%;
            max-width: 760px;
            height: 1px;
            background: linear-gradient(90deg, transparent 0%, rgba(61, 110, 247, 0.4) 30%, rgba(139, 124, 247, 0.4) 70%, transparent 100%);
        }

        .related-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 2rem;
            color: var(--text-primary);
            position: relative;
            display: inline-block;
        }

        .related-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 48px;
            height: 3px;
            border-radius: 2px;
            background: var(--gradient-primary);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .related-card {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.25s ease;
            border: 1px solid rgba(255, 255, 255, 0.06);
            position: relative;
        }

        .related-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0.04));
            pointer-events: none;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3), 0 0 20px rgba(61, 110, 247, 0.15);
            border-color: rgba(61, 110, 247, 0.2);
        }

        .related-card .card-img {
            padding: 0.75rem;
        }

        .related-card .card-img-inner {
            width: 100%;
            height: 180px;
            border-radius: 14px;
            overflow: hidden;
            position: relative;
        }

        .related-card .card-img-inner img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .related-card:hover .card-img-inner img {
            transform: scale(1.03);
        }

        .related-card .card-body {
            padding: 1rem 1.25rem 1.25rem;
        }

        .related-card h5 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card h5 a:hover {
            color: var(--accent);
        }

        .related-card .card-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--text-tertiary);
        }

        .related-card .card-tag {
            display: inline-block;
            padding: 0.15rem 0.6rem;
            border-radius: 4px;
            background: rgba(61, 110, 247, 0.2);
            color: var(--text-primary);
            font-size: 0.72rem;
            border: 1px solid rgba(61, 110, 247, 0.2);
        }

        .request-cta {
            padding: 4.5rem 0;
            position: relative;
        }

        .cta-box {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border-radius: var(--radius-lg);
            padding: 3.5rem 2.5rem;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.1);
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0.04));
        }

        .cta-box h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .cta-box p {
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 2rem;
            font-size: 1rem;
        }

        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.75rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            background: var(--gradient-primary);
            border-radius: 12px;
            border: none;
            box-shadow: 0 4px 20px rgba(61, 110, 247, 0.35);
            transition: all 0.25s ease;
        }

        .btn-primary-custom:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 32px rgba(61, 110, 247, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: 0 0 16px rgba(61, 110, 247, 0.35);
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.75rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 12px;
            transition: all 0.25s ease;
        }

        .btn-outline-custom:hover {
            border-color: rgba(255, 255, 255, 0.5);
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-primary);
            transform: translateY(-2px);
        }

        .site-footer {
            background: #080B18;
            padding: 4rem 0 0;
            position: relative;
            z-index: 1;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent 0%, rgba(61, 110, 247, 0.3) 30%, rgba(139, 124, 247, 0.3) 70%, transparent 100%);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 3rem;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 1.25rem;
        }

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

        .footer-links li {
            margin-bottom: 0.6rem;
        }

        .footer-links a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: all 0.25s ease;
        }

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

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .footer-contact i {
            color: var(--accent);
            margin-right: 4px;
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 1.5rem 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            color: var(--text-tertiary);
            font-size: 0.875rem;
        }

        .footer-social {
            display: flex;
            gap: 0.6rem;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 0.85rem;
            transition: all 0.25s ease;
        }

        .footer-social a:hover {
            background: var(--gradient-primary);
            border-color: transparent;
            color: #fff;
            box-shadow: var(--glow);
        }

        .mobile-nav-panel {
            display: none;
        }

        @media (max-width: 991.98px) {
            .nav-toggle {
                display: flex;
            }

            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(11, 14, 30, 0.97);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                padding: 1rem 1.5rem 1.5rem;
                gap: 0.4rem;
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: all 0.35s ease;
                z-index: 1040;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .nav-link-item {
                width: 100%;
                text-align: center;
                padding: 0.8rem 1rem;
            }

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

            .nav-cta {
                width: 100%;
                justify-content: center;
                margin-left: 0;
                margin-top: 0.5rem;
                padding: 0.8rem 1rem;
            }

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
        }

        @media (max-width: 767.98px) {
            .article-header .article-title {
                font-size: 1.7rem;
                line-height: 1.35;
            }

            .article-meta {
                gap: 0.85rem;
                font-size: 0.82rem;
            }

            .article-body-wrap {
                padding: 2.5rem 0 3rem;
            }

            .article-content {
                font-size: 0.95rem;
            }

            .article-content h2 {
                font-size: 1.35rem;
            }

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

            .cta-box {
                padding: 2.5rem 1.5rem;
            }

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

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

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

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .nav-logo {
                font-size: 1rem;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.8rem;
            }

            .article-meta {
                flex-wrap: wrap;
            }

            .breadcrumb-bar .breadcrumb {
                font-size: 0.82rem;
            }
        }

        .btn:focus,
        .form-control:focus,
        a:focus,
        button:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(61, 110, 247, 0.25);
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0B0E1E;
            --bg-secondary: #111629;
            --surface-glass: rgba(255, 255, 255, 0.06);
            --stroke-glass: rgba(255, 255, 255, 0.14);
            --text-primary: #EDF1FF;
            --text-secondary: #9AA3C0;
            --text-tertiary: #6B7394;
            --accent: #3D6EF7;
            --accent-2: #8B7CF7;
            --gradient-primary: linear-gradient(135deg, #3D6EF7 0%, #8B7CF7 100%);
            --glow: 0 0 28px rgba(61, 110, 247, 0.45);
            --star-glow: 0 0 12px rgba(139, 124, 247, 0.6);
            --radius-sm: 10px;
            --radius-md: 18px;
            --radius-lg: 28px;
            --transition: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "HarmonyOS Sans SC", sans-serif;
            background-color: var(--bg-primary);
            background-image:
                radial-gradient(ellipse 60% 50% at 12% 0%, rgba(61, 110, 247, 0.14) 0%, transparent 60%),
                radial-gradient(ellipse 40% 40% at 88% 8%, rgba(139, 124, 247, 0.12) 0%, transparent 65%),
                radial-gradient(ellipse 60% 60% at 50% 100%, rgba(61, 110, 247, 0.06) 0%, transparent 60%);
            background-attachment: fixed;
            color: var(--text-primary);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        button {
            border: none;
            background: transparent;
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .section-padding {
            padding: 5rem 0;
        }

        @media (max-width: 991px) {
            .section-padding {
                padding: 3.5rem 0;
            }
        }

        @media (max-width: 767px) {
            .section-padding {
                padding: 3rem 0;
            }
        }

        /* ===== 导航 ===== */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1080;
            background: rgba(11, 14, 30, 0.3);
            backdrop-filter: blur(14px) saturate(140%);
            -webkit-backdrop-filter: blur(14px) saturate(140%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
        }

        .site-nav.scrolled {
            background: rgba(11, 14, 30, 0.88);
            border-bottom-color: rgba(255, 255, 255, 0.1);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
            backdrop-filter: blur(18px) saturate(150%);
            -webkit-backdrop-filter: blur(18px) saturate(150%);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 74px;
            position: relative;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: 0.01em;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .nav-logo:hover {
            color: var(--text-primary);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 0.95rem;
            box-shadow: var(--glow);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .nav-link-item {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.5rem 0.9rem;
            border-radius: 10px;
            position: relative;
            transition: color 0.2s ease, background 0.2s ease;
        }

        .nav-link-item:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-link-item.active {
            color: var(--text-primary);
        }

        .nav-link-item.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--gradient-primary);
            box-shadow: 0 0 8px rgba(61, 110, 247, 0.6);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--gradient-primary);
            color: #fff !important;
            font-size: 0.9375rem;
            font-weight: 600;
            padding: 0.55rem 1.25rem;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 20px rgba(61, 110, 247, 0.35);
            transition: filter 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }

        .nav-cta:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 32px rgba(61, 110, 247, 0.55);
            transform: translateY(-2px);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 4px 20px rgba(61, 110, 247, 0.3);
        }

        .nav-toggle {
            display: none;
            position: relative;
            z-index: 1090;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--stroke-glass);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            transition: background 0.2s ease;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            border-radius: 2px;
            background: var(--text-primary);
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        @media (max-width: 991px) {
            .nav-toggle {
                display: flex;
            }

            .nav-links {
                position: fixed;
                top: 74px;
                left: 1rem;
                right: 1rem;
                flex-direction: column;
                align-items: stretch;
                gap: 0.4rem;
                padding: 1rem;
                background: rgba(11, 14, 30, 0.94);
                border: 1px solid rgba(255, 255, 255, 0.1);
                border-radius: var(--radius-md);
                backdrop-filter: blur(20px) saturate(140%);
                -webkit-backdrop-filter: blur(20px) saturate(140%);
                box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
                opacity: 0;
                transform: translateY(-12px) scale(0.98);
                visibility: hidden;
                pointer-events: none;
                transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
            }

            .nav-links.open {
                opacity: 1;
                transform: translateY(0) scale(1);
                visibility: visible;
                pointer-events: auto;
            }

            .nav-link-item {
                padding: 0.75rem 1rem;
                font-size: 1rem;
                text-align: center;
            }

            .nav-link-item.active::after {
                left: 20px;
                right: 20px;
                bottom: 4px;
            }

            .nav-cta {
                justify-content: center;
                margin-top: 0.4rem;
                padding: 0.75rem 1rem;
            }
        }

        /* ===== 分类页头 ===== */
        .page-hero {
            position: relative;
            padding: 8.5rem 0 4.5rem;
            background-image:
                linear-gradient(rgba(11, 14, 30, 0.92), rgba(11, 14, 30, 0.86)),
                url('/assets/images/backpic/back-1.webp');
            background-position: center;
            background-size: cover;
            overflow: hidden;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }

        .page-hero::before,
        .page-hero::after {
            content: "";
            position: absolute;
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.8);
            box-shadow:
                120px 60px 0 rgba(255, 255, 255, 0.5),
                320px 140px 0 rgba(255, 255, 255, 0.3),
                560px 80px 0 rgba(255, 255, 255, 0.45),
                760px 180px 0 rgba(255, 255, 255, 0.35),
                980px 100px 0 rgba(255, 255, 255, 0.4);
            animation: twinkle 3.2s ease-in-out infinite alternate;
        }

        .page-hero::after {
            top: 180px;
            right: 8%;
            animation-delay: 1.2s;
        }

        @keyframes twinkle {
            from {
                opacity: 0.4;
            }
            to {
                opacity: 1;
            }
        }

        .breadcrumb-wrap {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.875rem;
            color: var(--text-tertiary);
            margin-bottom: 1.75rem;
        }

        .breadcrumb-wrap a {
            color: var(--text-secondary);
        }

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

        .breadcrumb-wrap i {
            font-size: 0.7rem;
        }

        .page-hero h1 {
            font-size: clamp(2.2rem, 4.5vw, 3.4rem);
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin-bottom: 1rem;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-hero .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 620px;
            line-height: 1.7;
            margin-bottom: 2rem;
        }

        .page-hero::before {
            top: 240px;
            left: 12%;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 0.5rem;
        }

        .btn-gradient {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            padding: 0.85rem 2.1rem;
            border-radius: 12px;
            border: none;
            box-shadow: 0 4px 20px rgba(61, 110, 247, 0.35);
            transition: filter 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
            cursor: pointer;
        }

        .btn-gradient:hover {
            filter: brightness(1.1);
            box-shadow: 0 0 32px rgba(61, 110, 247, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-gradient:active {
            transform: translateY(0);
            box-shadow: 0 4px 20px rgba(61, 110, 247, 0.3);
        }

        .btn-outline-glass {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: transparent;
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 600;
            padding: 0.85rem 2.1rem;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
            cursor: pointer;
        }

        .btn-outline-glass:hover {
            border-color: rgba(255, 255, 255, 0.5);
            background: rgba(255, 255, 255, 0.06);
            transform: translateY(-2px);
            color: var(--text-primary);
        }

        .hero-trust {
            margin-top: 2.2rem;
            font-size: 0.875rem;
            color: var(--text-tertiary);
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
        }

        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
        }

        .hero-trust i {
            color: #2DD4BF;
            font-size: 0.875rem;
        }

        .underline-decoration {
            width: 72px;
            height: 4px;
            border-radius: 4px;
            background: var(--gradient-primary);
            margin: 1.25rem 0 1.75rem;
            box-shadow: 0 0 14px rgba(61, 110, 247, 0.5);
        }

        /* ===== 板块标题 ===== */
        .section-label {
            font-size: 0.875rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent-2);
            text-transform: uppercase;
            margin-bottom: 0.5rem;
        }

        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1.25rem;
            color: var(--text-primary);
        }

        .section-subtitle {
            color: var(--text-secondary);
            max-width: 680px;
            margin-bottom: 2.5rem;
            font-size: 1rem;
        }

        .section-tag {
            display: inline-block;
            padding: 0.35rem 0.9rem;
            font-size: 0.75rem;
            font-weight: 600;
            color: #D9CFFF;
            background: rgba(139, 124, 247, 0.16);
            border: 1px solid rgba(139, 124, 247, 0.35);
            border-radius: 100px;
            margin-bottom: 1rem;
        }

        .divider-gradient {
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.16), transparent);
            margin: 0;
            border: none;
        }

        /* ===== 玻璃卡片 ===== */
        .glass-card {
            position: relative;
            background: var(--surface-glass);
            border-radius: var(--radius-md);
            padding: 1.75rem;
            backdrop-filter: blur(16px) saturate(140%);
            -webkit-backdrop-filter: blur(16px) saturate(140%);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

        .glass-card::before {
            content: "";
            position: absolute;
            inset: -1px;
            border-radius: inherit;
            padding: 1px;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.28) 0%, rgba(255, 255, 255, 0.04) 100%);
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }

        .glass-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3), 0 0 20px rgba(61, 110, 247, 0.15);
        }

        /* ===== 分类简介区 ===== */
        .intro-section {
            background: var(--bg-secondary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .intro-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 3rem;
            align-items: center;
        }

        .intro-text h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1rem;
        }

        .intro-text p {
            color: var(--text-secondary);
            margin-bottom: 1.25rem;
        }

        .intro-text ul {
            list-style: none;
            padding: 0;
            margin: 1.75rem 0 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }

        .intro-text ul li {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            font-size: 0.9375rem;
            color: var(--text-primary);
        }

        .intro-text ul li i {
            color: #2DD4BF;
            font-size: 0.875rem;
            margin-top: 0.25rem;
        }

        .intro-media {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }

        .media-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            border: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
        }

        .media-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

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

        .media-card .media-caption {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            padding: 2.5rem 1.25rem 1rem;
            background: linear-gradient(transparent, rgba(11, 14, 30, 0.86));
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.85);
        }

        @media (max-width: 991px) {
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }

        @media (max-width: 520px) {
            .intro-text ul {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 核心要点 2x2 ===== */
        .features-section {
            background: var(--bg-primary);
        }

        .features-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }

        .feature-card {
            display: flex;
            align-items: flex-start;
            gap: 1.1rem;
        }

        .feature-icon {
            flex: 0 0 46px;
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: var(--gradient-primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            box-shadow: 0 0 18px rgba(61, 110, 247, 0.4);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .feature-card:hover .feature-icon {
            transform: scale(1.08);
            box-shadow: 0 0 28px rgba(61, 110, 247, 0.6);
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .feature-card p {
            color: var(--text-secondary);
            font-size: 0.9375rem;
            line-height: 1.65;
            margin: 0;
        }

        @media (max-width: 767px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 使用流程 ===== */
        .process-section {
            background: var(--bg-secondary);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .process-step {
            position: relative;
            padding: 2rem 1.5rem;
            text-align: center;
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            box-shadow: var(--glow);
            margin-bottom: 1.25rem;
        }

        .process-step h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.6rem;
        }

        .process-step p {
            color: var(--text-secondary);
            font-size: 0.875rem;
            line-height: 1.6;
            margin: 0;
        }

        .process-step:not(:last-child)::after {
            content: "\f105";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            top: 50%;
            right: -0.8rem;
            transform: translateY(-50%);
            color: var(--text-tertiary);
            font-size: 0.875rem;
        }

        @media (max-width: 991px) {
            .process-grid {
                grid-template-columns: 1fr 1fr;
            }

            .process-step:nth-child(2)::after {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .process-grid {
                grid-template-columns: 1fr;
            }

            .process-step::after {
                display: none !important;
            }
        }

        /* ===== 适用场景 ===== */
        .scenes-section {
            background: var(--bg-primary);
        }

        .scenes-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .scene-card {
            padding: 2rem 1.75rem;
        }

        .scene-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(139, 124, 247, 0.18);
            border: 1px solid rgba(139, 124, 247, 0.4);
            color: #C9BFFF;
            font-size: 0.95rem;
            margin-bottom: 1.1rem;
        }

        .scene-card h3 {
            font-size: 1.08rem;
            font-weight: 600;
            margin-bottom: 0.55rem;
        }

        .scene-card p {
            color: var(--text-secondary);
            font-size: 0.9375rem;
            line-height: 1.65;
            margin: 0;
        }

        @media (max-width: 991px) {
            .scenes-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 520px) {
            .scenes-grid {
                grid-template-columns: 1fr;
            }
        }

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

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

        .accordion-item {
            background: var(--surface-glass) !important;
            backdrop-filter: blur(16px) saturate(140%);
            -webkit-backdrop-filter: blur(16px) saturate(140%);
            border: 1px solid rgba(255, 255, 255, 0.08) !important;
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.9rem;
            overflow: hidden;
            transition: box-shadow 0.3s ease, border-color 0.3s ease;
            position: relative;
        }

        .accordion-item::before {
            content: "";
            position: absolute;
            inset: -1px;
            border-radius: inherit;
            padding: 1px;
            background: linear-gradient(135deg, rgba(61, 110, 247, 0.5) 0%, rgba(255, 255, 255, 0.04) 100%);
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .accordion-item:has(.show)::before {
            opacity: 1;
        }

        .accordion-header {
            background: transparent !important;
        }

        .accordion-button {
            background: transparent !important;
            color: var(--text-primary) !important;
            font-weight: 600;
            font-size: 1rem;
            padding: 1.25rem 1.5rem;
            box-shadow: none !important;
            border: none !important;
            border-radius: var(--radius-md) !important;
            outline: none !important;
            transition: color 0.25s ease, background 0.25s ease;
        }

        .accordion-button::after {
            content: "\002B";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            width: auto;
            height: auto;
            background-image: none;
            font-size: 1.2rem;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.3s ease, color 0.3s ease;
            transform: none;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            color: var(--accent-2);
        }

        .accordion-button:focus {
            outline: 2px solid rgba(61, 110, 247, 0.4) !important;
            outline-offset: -1px;
        }

        .accordion-body {
            color: var(--text-secondary);
            padding: 0 1.5rem 1.4rem;
            font-size: 0.9375rem;
            line-height: 1.7;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            margin-top: 0.25rem;
        }

        /* ===== CTA 下载区 ===== */
        .cta-section {
            position: relative;
            background-image:
                linear-gradient(rgba(11, 14, 30, 0.92), rgba(11, 14, 30, 0.92)),
                url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 5.5rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .cta-inner {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .cta-inner p {
            color: var(--text-secondary);
            margin-bottom: 2rem;
            font-size: 1rem;
        }

        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
        }

        .cta-trust {
            margin-top: 1.5rem;
            font-size: 0.8125rem;
            color: var(--text-tertiary);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .cta-trust i {
            color: #2DD4BF;
            margin-right: 0.35rem;
        }

        /* ===== 返回首页 ===== */
        .back-section {
            background: var(--bg-primary);
            padding: 2.5rem 0;
            text-align: center;
        }

        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--text-secondary);
            font-size: 0.9375rem;
            transition: color 0.25s ease, gap 0.25s ease;
        }

        .back-link:hover {
            color: var(--text-primary);
            gap: 0.9rem;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #080B18;
            color: var(--text-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 4rem 0 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: var(--text-tertiary);
            max-width: 280px;
        }

        .footer-title {
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1.1rem;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.55rem;
        }

        .footer-links a {
            color: var(--text-tertiary);
            font-size: 0.9rem;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }

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

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
            font-size: 0.9rem;
            color: var(--text-tertiary);
        }

        .footer-contact i {
            color: var(--accent);
            width: 20px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.75rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            font-size: 0.8125rem;
            color: var(--text-tertiary);
        }

        .footer-social {
            display: flex;
            gap: 0.75rem;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-secondary);
            font-size: 0.875rem;
            transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
        }

        .footer-social a:hover {
            background: var(--gradient-primary);
            color: #fff;
            border-color: transparent;
            transform: translateY(-2px);
        }

        @media (max-width: 991px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.8rem;
            }

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

        /* ===== 通用状态 ===== */
        :focus-visible {
            outline: 2px solid rgba(61, 110, 247, 0.6);
            outline-offset: 2px;
            border-radius: 6px;
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

        @media (max-width: 767px) {
            .page-hero {
                padding: 7rem 0 3.5rem;
            }

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

            .hero-subtitle {
                font-size: 0.9375rem !important;
            }

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

            .btn-gradient,
            .btn-outline-glass {
                justify-content: center;
                padding: 0.75rem 1.5rem;
            }

            .hero-trust {
                gap: 0.8rem;
                font-size: 0.8125rem;
            }
        }