/* roulang page: index */
:root {
            --color-primary: #B8F135;
            --color-accent: #FF6B35;
            --color-bg: #0A0E0B;
            --color-surface: #121712;
            --color-elevated: #1A211A;
            --color-text: #F2F7F0;
            --color-text-secondary: #B9C4B6;
            --color-border-subtle: rgba(184, 241, 53, 0.16);
            --color-border-input: rgba(255, 255, 255, 0.1);
            --radius-card: 16px;
            --radius-btn: 12px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 12px rgba(184, 241, 53, 0.45);
            --shadow-glow-accent: 0 0 14px rgba(255, 107, 53, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-numeric: "DIN Alternate", ui-monospace, monospace;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 3px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 6px;
        }

        .container-kaiyun {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 768px) {
            .container-kaiyun {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container-kaiyun {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* 导航 */
        .navbar {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 14, 11, 0.88);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(184, 241, 53, 0.12);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        .navbar:hover {
            background: rgba(10, 14, 11, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
        }

        .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .navbar-brand .brand-icon {
            width: 32px;
            height: 32px;
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            font-size: 1.1rem;
            color: #0A0E0B;
            font-weight: 900;
            flex-shrink: 0;
        }

        .navbar-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
        }

        .navbar-links a {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color 0.3s ease;
            white-space: nowrap;
        }

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

        .navbar-links a.active {
            color: var(--color-primary);
        }

        .navbar-links a.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
            box-shadow: 0 0 8px rgba(184, 241, 53, 0.5);
        }

        .hamburger-btn {
            display: none;
            background: transparent;
            border: 1px solid rgba(184, 241, 53, 0.2);
            border-radius: 8px;
            padding: 8px 10px;
            color: var(--color-text);
            font-size: 1.2rem;
            line-height: 1;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .hamburger-btn:hover {
            border-color: var(--color-primary);
            box-shadow: 0 0 10px rgba(184, 241, 53, 0.2);
        }

        .mobile-menu {
            display: none;
            background: rgba(10, 14, 11, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(184, 241, 53, 0.12);
            padding: 16px 0;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu a {
            display: block;
            padding: 12px 20px;
            font-size: 1.125rem;
            font-weight: 500;
            color: var(--color-text);
            border-left: 3px solid transparent;
            transition: all 0.3s ease;
        }

        .mobile-menu a.active,
        .mobile-menu a:hover {
            border-left-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(184, 241, 53, 0.06);
        }

        @media (max-width: 767px) {
            .navbar-links {
                display: none;
            }
            .hamburger-btn {
                display: block;
            }
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-primary);
            color: #0A0E0B;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            transition: all 0.3s ease;
            border: 1px solid var(--color-primary);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: #c5fa45;
            color: #0A0E0B;
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 6px rgba(184, 241, 53, 0.3);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            transition: all 0.3s ease;
            border: 1px solid var(--color-primary);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: var(--color-primary);
            color: #0A0E0B;
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

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

        /* 卡片基础 */
        .card-kaiyun {
            background: var(--color-surface);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }

        .card-kaiyun:hover {
            transform: translateY(-3px);
            border-color: var(--color-primary);
            box-shadow: 0 14px 36px rgba(0, 0, 0, 0.5), 0 0 18px rgba(184, 241, 53, 0.12);
        }

        /* 徽章 */
        .badge-primary {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(184, 241, 53, 0.14);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.75rem;
            padding: 5px 12px;
            border-radius: 999px;
            border: 1px solid rgba(184, 241, 53, 0.28);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .badge-accent {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(255, 107, 53, 0.14);
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 999px;
            border: 1px solid rgba(255, 107, 53, 0.25);
            white-space: nowrap;
        }

        /* 数据数字 */
        .numeric-display {
            font-family: var(--font-numeric);
            font-weight: 700;
            letter-spacing: 0.02em;
        }

        /* Hero/指标看板 */
        .hero-bg {
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
        }

        .hero-overlay {
            background: linear-gradient(180deg, rgba(10, 14, 11, 0.72) 0%, rgba(10, 14, 11, 0.86) 55%, rgba(10, 14, 11, 0.97) 100%);
        }

        .hero-metric-card {
            background: rgba(18, 23, 18, 0.78);
            border-left: 3px solid var(--color-primary);
            border-radius: 12px;
            padding: 16px 18px;
            min-width: 160px;
            transition: all 0.3s ease;
            flex-shrink: 0;
        }

        .hero-metric-card:hover {
            background: rgba(18, 23, 18, 0.9);
            border-left-color: var(--color-accent);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
        }

        /* 服务矩阵 */
        .service-card-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            position: relative;
            background: var(--color-elevated);
        }

        .service-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .service-card-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 11, 0.08) 40%, rgba(10, 14, 11, 0.72) 100%);
            pointer-events: none;
        }

        .card-kaiyun:hover .service-card-image img {
            transform: scale(1.03);
        }

        /* FAQ */
        .faq-item {
            border: 1px solid rgba(184, 241, 53, 0.12);
            border-radius: 12px;
            background: var(--color-surface);
            transition: all 0.3s ease;
            overflow: hidden;
            margin-bottom: 10px;
        }

        .faq-item.open {
            border-left: 4px solid var(--color-primary);
            background: var(--color-elevated);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            background: transparent;
            color: var(--color-text);
            font-weight: 700;
            font-size: 0.9rem;
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            border: none;
            transition: color 0.3s ease;
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-question .faq-plus {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(184, 241, 53, 0.3);
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            transition: transform 0.3s ease;
        }

        .faq-item.open .faq-question .faq-plus {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 20px;
            color: var(--color-text-secondary);
            font-size: 0.875rem;
            line-height: 1.8;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px 20px;
        }

        /* 表单 */
        .form-input-kaiyun {
            background: #0E130E;
            border: 1px solid var(--color-border-input);
            border-radius: 10px;
            padding: 12px 16px;
            color: var(--color-text);
            font-size: 0.9rem;
            transition: all 0.3s ease;
            width: 100%;
        }

        .form-input-kaiyun:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(184, 241, 53, 0.18);
        }

        .form-input-kaiyun::placeholder {
            color: rgba(185, 196, 182, 0.5);
        }

        select.form-input-kaiyun {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23B9C4B6' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
        }

        /* 资讯列表 */
        .news-item {
            border-bottom: 1px solid rgba(184, 241, 53, 0.08);
            padding: 18px 0;
            transition: all 0.3s ease;
        }

        .news-item:hover {
            border-bottom-color: rgba(184, 241, 53, 0.25);
            padding-left: 8px;
        }

        .news-item-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text);
            transition: color 0.3s ease;
            margin-bottom: 6px;
        }

        .news-item:hover .news-item-title {
            color: var(--color-primary);
        }

        /* 对比区域 */
        .compare-other {
            background: rgba(185, 196, 182, 0.08);
            border: 1px solid rgba(185, 196, 182, 0.15);
            border-radius: var(--radius-card);
            padding: 24px;
            color: var(--color-text-secondary);
        }

        .compare-kaiyun {
            background: rgba(184, 241, 53, 0.05);
            border: 1px solid var(--color-primary);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: 0 0 20px rgba(184, 241, 53, 0.1);
            position: relative;
        }

        .compare-kaiyun::before {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-card);
            pointer-events: none;
        }

        /* 保障图标条 */
        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 20px;
            border-radius: 12px;
            background: var(--color-surface);
            border: 1px solid rgba(184, 241, 53, 0.1);
            transition: all 0.3s ease;
        }

        .guarantee-item:hover {
            border-color: var(--color-primary);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
        }

        .guarantee-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(184, 241, 53, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--color-primary);
            flex-shrink: 0;
        }

        /* 合作伙伴标签 */
        .partner-tag {
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding: 18px;
            border-radius: 12px;
            background: var(--color-surface);
            border: 1px solid rgba(184, 241, 53, 0.1);
            transition: all 0.3s ease;
        }

        .partner-tag:hover {
            border-color: rgba(184, 241, 53, 0.35);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
            transform: translateY(-2px);
        }

        /* 页脚 */
        .footer-kaiyun {
            background: #080B08;
            border-top: 1px solid rgba(184, 241, 53, 0.1);
            padding: 48px 0 24px;
        }

        .footer-link {
            color: var(--color-text-secondary);
            font-size: 0.875rem;
            transition: color 0.3s ease;
        }

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

        /* 动画 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fadeInUp {
            animation: fadeInUp 0.6s ease forwards;
        }

        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }

        /* 板块间距 */
        .section-pad {
            padding-top: 4rem;
            padding-bottom: 4rem;
        }

        @media (min-width: 768px) {
            .section-pad {
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }

        @media (min-width: 1024px) {
            .section-pad {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }

        /* 文字截断 */
        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .line-clamp-3 {
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* 滚动条 */
        .scrollbar-none::-webkit-scrollbar {
            display: none;
        }
        .scrollbar-none {
            scrollbar-width: none;
        }

/* roulang page: category1 */
:root {
            --color-primary: #B8F135;
            --color-accent: #FF6B35;
            --color-bg: #0A0E0B;
            --color-surface: #121712;
            --color-elevated: #1A211A;
            --color-text: #F2F7F0;
            --color-text-secondary: #B9C4B6;
            --color-border-subtle: rgba(184, 241, 53, 0.16);
            --color-border-input: rgba(255, 255, 255, 0.1);
            --radius-card: 16px;
            --radius-btn: 12px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 12px rgba(184, 241, 53, 0.45);
            --shadow-glow-accent: 0 0 14px rgba(255, 107, 53, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-numeric: "DIN Alternate", ui-monospace, monospace;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 6px;
        }

        .container-kaiyun {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 768px) {
            .container-kaiyun {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container-kaiyun {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* 导航 */
        .navbar {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 14, 11, 0.88);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(184, 241, 53, 0.12);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }
        .navbar:hover {
            background: rgba(10, 14, 11, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
        }
        .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .navbar-brand .brand-icon {
            width: 32px;
            height: 32px;
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            font-size: 1.1rem;
            color: #0A0E0B;
            font-weight: 900;
            flex-shrink: 0;
        }
        .navbar-links {
            display: none;
            align-items: center;
            gap: 24px;
            list-style: none;
        }
        .navbar-links a {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color 0.3s ease;
            white-space: nowrap;
        }
        .navbar-links a:hover {
            color: var(--color-primary);
        }
        .navbar-links a.active {
            color: var(--color-primary);
        }
        .navbar-links a.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
            box-shadow: 0 0 8px rgba(184, 241, 53, 0.5);
        }
        .hamburger-btn {
            display: block;
            background: transparent;
            border: 1px solid rgba(184, 241, 53, 0.2);
            border-radius: 8px;
            padding: 8px 10px;
            color: var(--color-text);
            font-size: 1.2rem;
            line-height: 1;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .hamburger-btn:hover {
            border-color: var(--color-primary);
            box-shadow: 0 0 10px rgba(184, 241, 53, 0.2);
        }
        .mobile-menu {
            display: none;
            background: rgba(10, 14, 11, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(184, 241, 53, 0.12);
            padding: 16px 0;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu a {
            display: block;
            padding: 12px 20px;
            font-size: 1.125rem;
            font-weight: 500;
            color: var(--color-text);
            border-left: 3px solid transparent;
            transition: all 0.3s ease;
        }
        .mobile-menu a.active,
        .mobile-menu a:hover {
            border-left-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(184, 241, 53, 0.06);
        }
        @media (min-width: 768px) {
            .navbar-links {
                display: flex;
            }
            .hamburger-btn {
                display: none;
            }
            .mobile-menu {
                display: none !important;
            }
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-primary);
            color: #0A0E0B;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            transition: all 0.3s ease;
            box-shadow: 0 0 0 rgba(184, 241, 53, 0);
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: #c8ff3d;
            box-shadow: var(--shadow-glow);
            color: #0A0E0B;
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 6px rgba(184, 241, 53, 0.3);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--color-primary);
            transition: all 0.3s ease;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            background: var(--color-primary);
            color: #0A0E0B;
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }

        /* 卡片 */
        .card-kaiyun {
            background: var(--color-surface);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
            box-shadow: var(--shadow-card);
        }
        .card-kaiyun:hover {
            transform: translateY(-3px);
            border-color: var(--color-primary);
            box-shadow: 0 14px 38px rgba(0, 0, 0, 0.55), 0 0 16px rgba(184, 241, 53, 0.15);
        }
        .card-kaiyun .card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #0E130E;
        }
        .card-kaiyun .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .card-kaiyun:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .card-kaiyun .card-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 11, 0.1) 0%, rgba(10, 14, 11, 0.55) 100%);
            pointer-events: none;
        }
        .card-kaiyun .card-tag {
            position: absolute;
            top: 10px;
            left: 10px;
            z-index: 2;
            background: rgba(184, 241, 53, 0.9);
            color: #0A0E0B;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 20px;
            letter-spacing: 0.04em;
        }
        .card-kaiyun .card-body {
            padding: 16px 18px 14px;
        }
        .card-kaiyun .card-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.5;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-kaiyun .card-desc {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 10px;
        }
        .card-kaiyun .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.72rem;
            color: rgba(185, 196, 182, 0.75);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 10px;
        }
        .card-kaiyun .card-meta .meta-num {
            font-family: var(--font-numeric);
            color: var(--color-accent);
            font-weight: 600;
        }

        /* 标签 / 徽章 */
        .badge-accent {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(255, 107, 53, 0.12);
            color: var(--color-accent);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 10px;
            border: 1px solid rgba(255, 107, 53, 0.25);
        }
        .badge-primary {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(184, 241, 53, 0.12);
            color: var(--color-primary);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 10px;
            border: 1px solid rgba(184, 241, 53, 0.25);
        }

        /* FAQ */
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .faq-item.open {
            border-left: 4px solid var(--color-primary);
            background: var(--color-elevated);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 0.875rem;
            font-weight: 700;
            color: var(--color-text);
            user-select: none;
            transition: color 0.3s ease;
        }
        .faq-item .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-item .faq-icon {
            font-size: 1.2rem;
            font-weight: 300;
            color: var(--color-primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            display: none;
            padding: 0 20px 16px;
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.9;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* 筛选 pill */
        .filter-pill {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            font-size: 0.82rem;
            font-weight: 500;
            border-radius: 24px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--color-text-secondary);
            background: transparent;
            transition: all 0.3s ease;
            white-space: nowrap;
            cursor: pointer;
        }
        .filter-pill:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .filter-pill.active {
            background: var(--color-primary);
            color: #0A0E0B;
            border-color: var(--color-primary);
            font-weight: 700;
            box-shadow: 0 0 10px rgba(184, 241, 53, 0.25);
        }

        /* 表单 */
        .form-input {
            width: 100%;
            background: #0E130E;
            border: 1px solid var(--color-border-input);
            border-radius: 10px;
            padding: 12px 14px;
            font-size: 0.9rem;
            color: var(--color-text);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .form-input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(184, 241, 53, 0.2);
        }
        .form-input::placeholder {
            color: rgba(185, 196, 182, 0.55);
        }

        /* 页脚 */
        .footer-kaiyun {
            background: #080B08;
            border-top: 1px solid rgba(184, 241, 53, 0.08);
            padding: 48px 0 24px;
            margin-top: 64px;
        }
        .footer-link {
            font-size: 0.8rem;
            color: var(--color-text-secondary);
            transition: color 0.3s ease;
            display: inline-block;
        }
        .footer-link:hover {
            color: var(--color-primary);
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            color: rgba(185, 196, 182, 0.7);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            transition: color 0.3s ease;
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .sep {
            color: rgba(185, 196, 182, 0.4);
        }
        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        /* 数字展示 */
        .stat-num {
            font-family: var(--font-numeric);
            font-weight: 700;
            letter-spacing: 0.02em;
        }

        /* 段落行高 */
        .text-body {
            line-height: 1.9;
        }

        /* 页脚品牌图 */
        .footer-brand-icon {
            width: 28px;
            height: 28px;
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            font-weight: 900;
            font-size: 0.9rem;
            color: #0A0E0B;
            flex-shrink: 0;
        }

        /* 响应式辅助 */
        @media (max-width: 767px) {
            .hide-mobile {
                display: none !important;
            }
            .card-kaiyun .card-body {
                padding: 14px 14px 12px;
            }
            .card-kaiyun .card-title {
                font-size: 0.92rem;
            }
            .card-kaiyun .card-desc {
                font-size: 0.8rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #B8F135;
            --color-accent: #FF6B35;
            --color-bg: #0A0E0B;
            --color-surface: #121712;
            --color-elevated: #1A211A;
            --color-text: #F2F7F0;
            --color-text-secondary: #B9C4B6;
            --color-border-subtle: rgba(184, 241, 53, 0.16);
            --color-border-input: rgba(255, 255, 255, 0.1);
            --radius-card: 16px;
            --radius-btn: 12px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 12px rgba(184, 241, 53, 0.45);
            --shadow-glow-accent: 0 0 14px rgba(255, 107, 53, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-numeric: "DIN Alternate", ui-monospace, monospace;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 3px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 6px;
        }
        .container-kaiyun {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 768px) {
            .container-kaiyun {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container-kaiyun {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        .navbar {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 14, 11, 0.88);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(184, 241, 53, 0.12);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }
        .navbar:hover {
            background: rgba(10, 14, 11, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
        }
        .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .navbar-brand .brand-icon {
            width: 32px;
            height: 32px;
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            font-size: 1.1rem;
            color: #0A0E0B;
            font-weight: 900;
            flex-shrink: 0;
        }
        .navbar-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .navbar-links a {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color 0.3s ease;
            white-space: nowrap;
        }
        .navbar-links a:hover {
            color: var(--color-primary);
        }
        .navbar-links a.active {
            color: var(--color-primary);
        }
        .navbar-links a.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
            box-shadow: 0 0 8px rgba(184, 241, 53, 0.5);
        }
        .hamburger-btn {
            display: none;
            background: transparent;
            border: 1px solid rgba(184, 241, 53, 0.2);
            border-radius: 8px;
            padding: 8px 10px;
            color: var(--color-text);
            font-size: 1.2rem;
            line-height: 1;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .hamburger-btn:hover {
            border-color: var(--color-primary);
            box-shadow: 0 0 10px rgba(184, 241, 53, 0.2);
        }
        .mobile-menu {
            display: none;
            background: rgba(10, 14, 11, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(184, 241, 53, 0.12);
            padding: 16px 0;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu a {
            display: block;
            padding: 12px 20px;
            font-size: 1.125rem;
            font-weight: 500;
            color: var(--color-text);
            border-left: 3px solid transparent;
            transition: all 0.3s ease;
        }
        .mobile-menu a.active,
        .mobile-menu a:hover {
            border-left-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(184, 241, 53, 0.06);
        }
        @media (max-width: 767px) {
            .navbar-links {
                display: none;
            }
            .hamburger-btn {
                display: block;
            }
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-primary);
            color: #0A0E0B;
            font-weight: 700;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }
        .btn-primary:hover {
            box-shadow: var(--shadow-glow);
            color: #0A0E0B;
            filter: brightness(1.08);
            transform: translateY(-1px);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--color-primary);
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            transition: all 0.3s ease;
            border: 1px solid var(--color-primary);
        }
        .btn-secondary:hover {
            background: var(--color-primary);
            color: #0A0E0B;
            box-shadow: var(--shadow-glow);
        }
        .card-base {
            background: var(--color-surface);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .card-base:hover {
            transform: translateY(-3px);
            border-color: var(--color-primary);
            box-shadow: 0 14px 40px rgba(0, 0, 0, 0.55), 0 0 12px rgba(184, 241, 53, 0.2);
        }
        .badge-primary {
            display: inline-block;
            background: rgba(184, 241, 53, 0.12);
            color: var(--color-primary);
            border: 1px solid rgba(184, 241, 53, 0.25);
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.05em;
        }
        .section-title {
            font-size: clamp(1.5rem, 3vw, 2.1rem);
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }
        .section-block {
            padding: 64px 0;
        }
        @media (min-width: 768px) {
            .section-block {
                padding: 80px 0;
            }
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--color-text-secondary);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            transition: color 0.3s ease;
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.3);
        }
        .card-image-wrapper {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .card-image-wrapper img {
            transition: transform 0.4s ease;
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        .card-image-wrapper:hover img {
            transform: scale(1.05);
        }
        .card-image-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 11, 0.1) 0%, rgba(10, 14, 11, 0.65) 100%);
        }
        .filter-pill {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.18);
            background: transparent;
            color: var(--color-text-secondary);
            font-size: 0.8rem;
            font-weight: 500;
            white-space: nowrap;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        .filter-pill:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .filter-pill.active {
            background: var(--color-primary);
            color: #0A0E0B;
            border-color: var(--color-primary);
            font-weight: 700;
        }
        .faq-item {
            border: 1px solid var(--color-border-subtle);
            border-radius: 12px;
            background: var(--color-surface);
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .faq-item.active {
            background: var(--color-elevated);
            border-left: 4px solid var(--color-primary);
        }
        .faq-question {
            width: 100%;
            background: transparent;
            color: var(--color-text);
            font-size: 0.875rem;
            font-weight: 700;
            padding: 16px 20px;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color 0.3s ease;
            border: none;
            cursor: pointer;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
            color: var(--color-text-secondary);
            font-size: 0.82rem;
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 0 20px 16px;
        }
        .faq-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--color-primary);
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .stat-number {
            font-family: var(--font-numeric);
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.72rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }
        .input-kaiyun {
            width: 100%;
            background: #0E130E;
            border: 1px solid var(--color-border-input);
            border-radius: 8px;
            padding: 12px 16px;
            color: var(--color-text);
            font-size: 0.875rem;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .input-kaiyun:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(184, 241, 53, 0.2);
        }
        .footer-kaiyun {
            background: #080B08;
            border-top: 1px solid rgba(184, 241, 53, 0.08);
            padding: 48px 0 24px;
        }
        .footer-link {
            font-size: 0.78rem;
            color: var(--color-text-secondary);
            transition: color 0.3s ease;
            display: inline-block;
        }
        .footer-link:hover {
            color: var(--color-primary);
        }
        .process-step-number {
            width: 40px;
            height: 40px;
            background: rgba(184, 241, 53, 0.12);
            border: 1px solid rgba(184, 241, 53, 0.3);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1rem;
            color: var(--color-primary);
            flex-shrink: 0;
            font-family: var(--font-numeric);
        }
        .compare-card-left {
            background: #0E130E;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 24px;
        }
        .compare-card-right {
            background: rgba(184, 241, 53, 0.05);
            border: 1px solid var(--color-primary);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: 0 0 20px rgba(184, 241, 53, 0.08);
        }
        .compare-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            gap: 12px;
            flex-wrap: wrap;
        }
        .compare-row:last-child {
            border-bottom: none;
        }
        .hidden-card {
            display: none;
        }
        .hidden-card.visible {
            display: block;
        }
        .skeleton-bg {
            background: linear-gradient(135deg, #121712 0%, #1A211A 50%, #121712 100%);
        }

/* roulang page: category3 */
:root {
            --color-primary: #B8F135;
            --color-accent: #FF6B35;
            --color-bg: #0A0E0B;
            --color-surface: #121712;
            --color-elevated: #1A211A;
            --color-text: #F2F7F0;
            --color-text-secondary: #B9C4B6;
            --color-border-subtle: rgba(184, 241, 53, 0.16);
            --color-border-input: rgba(255, 255, 255, 0.1);
            --radius-card: 16px;
            --radius-btn: 12px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 12px rgba(184, 241, 53, 0.45);
            --shadow-glow-accent: 0 0 14px rgba(255, 107, 53, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-numeric: "DIN Alternate", ui-monospace, monospace;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 3px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 6px;
        }

        .container-kaiyun {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 768px) {
            .container-kaiyun {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container-kaiyun {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* 导航 */
        .navbar {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 14, 11, 0.88);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(184, 241, 53, 0.12);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        .navbar:hover {
            background: rgba(10, 14, 11, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
        }

        .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .navbar-brand .brand-icon {
            width: 32px;
            height: 32px;
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            font-size: 1.1rem;
            color: #0A0E0B;
            font-weight: 900;
            flex-shrink: 0;
        }

        .navbar-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
        }

        .navbar-links a {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color 0.3s ease;
            white-space: nowrap;
        }

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

        .navbar-links a.active {
            color: var(--color-primary);
        }

        .navbar-links a.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
            box-shadow: 0 0 8px rgba(184, 241, 53, 0.5);
        }

        .hamburger-btn {
            display: none;
            background: transparent;
            border: 1px solid rgba(184, 241, 53, 0.2);
            border-radius: 8px;
            padding: 8px 10px;
            color: var(--color-text);
            font-size: 1.2rem;
            line-height: 1;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .hamburger-btn:hover {
            border-color: var(--color-primary);
            box-shadow: 0 0 10px rgba(184, 241, 53, 0.2);
        }

        .mobile-menu {
            display: none;
            background: rgba(10, 14, 11, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(184, 241, 53, 0.12);
            padding: 16px 0;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu a {
            display: block;
            padding: 12px 20px;
            font-size: 1.125rem;
            font-weight: 500;
            color: var(--color-text);
            border-left: 3px solid transparent;
            transition: all 0.3s ease;
        }

        .mobile-menu a.active,
        .mobile-menu a:hover {
            border-left-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(184, 241, 53, 0.06);
        }

        .navbar-links {
            display: none;
        }
        .hamburger-btn {
            display: block;
        }

        @media (min-width: 768px) {
            .navbar-links {
                display: flex;
            }
            .hamburger-btn {
                display: none;
            }
            .mobile-menu {
                display: none !important;
            }
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-primary);
            color: #0A0E0B;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            transition: all 0.3s ease;
            white-space: nowrap;
            cursor: pointer;
            border: 1px solid transparent;
        }

        .btn-primary:hover {
            background: #C9FF4A;
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
            color: #0A0E0B;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--color-primary);
            transition: all 0.3s ease;
            white-space: nowrap;
            cursor: pointer;
        }

        .btn-secondary:hover {
            background: var(--color-primary);
            color: #0A0E0B;
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        /* Hero 区域 */
        .hero-kaiyun {
            position: relative;
            min-height: 46vh;
            display: flex;
            align-items: center;
            background-image: linear-gradient(135deg, rgba(10, 14, 11, 0.92) 0%, rgba(10, 14, 11, 0.82) 50%, rgba(10, 14, 11, 0.75) 100%), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid rgba(184, 241, 53, 0.1);
            padding: 56px 0 48px;
        }

        .hero-kaiyun::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--color-bg), transparent);
            pointer-events: none;
        }

        .breadcrumb-kaiyun {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.78rem;
            color: var(--color-text-secondary);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

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

        .breadcrumb-sep {
            color: rgba(184, 241, 53, 0.4);
        }

        /* 卡片 */
        .card-kaiyun {
            background: var(--color-surface);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            overflow: hidden;
        }

        .card-kaiyun:hover {
            transform: translateY(-3px);
            border-color: var(--color-primary);
            box-shadow: 0 14px 40px rgba(0, 0, 0, 0.55), 0 0 18px rgba(184, 241, 53, 0.18);
        }

        .card-image-wrapper {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--color-elevated);
        }

        .card-image-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .card-kaiyun:hover .card-image-wrapper img {
            transform: scale(1.05);
        }

        .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(10, 14, 11, 0.88);
            color: var(--color-primary);
            font-size: 0.72rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            border: 1px solid rgba(184, 241, 53, 0.3);
            backdrop-filter: blur(4px);
            white-space: nowrap;
        }

        /* 标签 */
        .tag-kaiyun {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(184, 241, 53, 0.08);
            border: 1px solid rgba(184, 241, 53, 0.2);
            color: var(--color-primary);
            font-size: 0.75rem;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 20px;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .tag-kaiyun:hover {
            background: rgba(184, 241, 53, 0.16);
            border-color: var(--color-primary);
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-border-subtle);
            border-radius: 12px;
            background: var(--color-surface);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-item.active {
            border-color: var(--color-primary);
            background: var(--color-elevated);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 16px 20px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text);
            background: transparent;
            text-align: left;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            position: relative;
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-question .faq-indicator {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(184, 241, 53, 0.1);
            color: var(--color-primary);
            font-size: 1rem;
            transition: all 0.3s ease;
            font-weight: 700;
        }

        .faq-item.active .faq-indicator {
            background: var(--color-primary);
            color: #0A0E0B;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 20px;
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.9;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-item.active .faq-question {
            border-left: 4px solid var(--color-primary);
            padding-left: 16px;
        }

        /* 表单 */
        .form-input-kaiyun {
            width: 100%;
            background: #0E130E;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            padding: 12px 16px;
            color: var(--color-text);
            font-size: 0.85rem;
            transition: all 0.3s ease;
        }

        .form-input-kaiyun:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(184, 241, 53, 0.2);
        }

        .form-input-kaiyun::placeholder {
            color: rgba(185, 196, 182, 0.5);
        }

        select.form-input-kaiyun option {
            background: var(--color-surface);
            color: var(--color-text);
        }

        /* 页脚 */
        .footer-kaiyun {
            background: #080B08;
            border-top: 1px solid rgba(184, 241, 53, 0.08);
            padding: 48px 0 24px;
            margin-top: 40px;
        }

        .footer-link {
            font-size: 0.78rem;
            color: var(--color-text-secondary);
            transition: color 0.3s ease;
        }

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

        /* 对比区域 */
        .compare-highlight {
            background: linear-gradient(135deg, rgba(184, 241, 53, 0.06) 0%, rgba(184, 241, 53, 0.02) 50%, transparent 100%);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-card);
            position: relative;
        }

        .compare-highlight::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-primary);
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .numeric-font {
            font-family: var(--font-numeric);
            letter-spacing: 0.02em;
        }

        /* 分区间距 */
        .section-pad-kaiyun {
            padding: 56px 0;
        }

        @media (min-width: 768px) {
            .section-pad-kaiyun {
                padding: 72px 0;
            }
        }

        @media (min-width: 1024px) {
            .section-pad-kaiyun {
                padding: 84px 0;
            }
        }

        /* 滚动条样式 */
        .scrollable-tags {
            display: flex;
            gap: 8px;
            overflow-x: auto;
            padding-bottom: 8px;
            scrollbar-width: thin;
            scrollbar-color: rgba(184, 241, 53, 0.3) transparent;
            -webkit-overflow-scrolling: touch;
        }

        .scrollable-tags::-webkit-scrollbar {
            height: 4px;
        }

        .scrollable-tags::-webkit-scrollbar-track {
            background: transparent;
        }

        .scrollable-tags::-webkit-scrollbar-thumb {
            background: rgba(184, 241, 53, 0.3);
            border-radius: 4px;
        }

        /* 列表样式 */
        .list-check-kaiyun {
            list-style: none;
            padding: 0;
        }

        .list-check-kaiyun li {
            padding-left: 28px;
            position: relative;
            margin-bottom: 12px;
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.85;
        }

        .list-check-kaiyun li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 0;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 0.9rem;
        }

        .section-divider {
            height: 1px;
            background: linear-gradient(to right, transparent, rgba(184, 241, 53, 0.18), transparent);
            border: none;
            margin: 0;
        }

        /* 响应式辅助 */
        @media (max-width: 767px) {
            .hero-kaiyun {
                min-height: 40vh;
                padding: 40px 0 32px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #B8F135;
            --color-accent: #FF6B35;
            --color-bg: #0A0E0B;
            --color-surface: #121712;
            --color-elevated: #1A211A;
            --color-text: #F2F7F0;
            --color-text-secondary: #B9C4B6;
            --color-border-subtle: rgba(184, 241, 53, 0.16);
            --color-border-input: rgba(255, 255, 255, 0.1);
            --radius-card: 16px;
            --radius-btn: 12px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 12px rgba(184, 241, 53, 0.45);
            --shadow-glow-accent: 0 0 14px rgba(255, 107, 53, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-numeric: "DIN Alternate", ui-monospace, monospace;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 3px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 6px;
        }

        .container-kaiyun {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 1024px) {
            .container-kaiyun {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* ===== 导航 ===== */
        .navbar {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 14, 11, 0.88);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(184, 241, 53, 0.12);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        .navbar:hover {
            background: rgba(10, 14, 11, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
        }

        .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .navbar-brand .brand-icon {
            width: 32px;
            height: 32px;
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            font-size: 1.1rem;
            color: #0A0E0B;
            font-weight: 900;
            flex-shrink: 0;
        }

        .navbar-links {
            display: none;
            align-items: center;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        @media (min-width: 1024px) {
            .navbar-links {
                display: flex;
            }
        }

        .navbar-links a {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color 0.3s ease;
            white-space: nowrap;
        }

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

        .navbar-links a.active {
            color: var(--color-primary);
        }

        .navbar-links a.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
            box-shadow: 0 0 8px rgba(184, 241, 53, 0.5);
        }

        .hamburger-btn {
            display: block;
            background: transparent;
            border: 1px solid rgba(184, 241, 53, 0.2);
            border-radius: 8px;
            padding: 8px 10px;
            color: var(--color-text);
            font-size: 1.2rem;
            line-height: 1;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        @media (min-width: 1024px) {
            .hamburger-btn {
                display: none;
            }
        }

        .hamburger-btn:hover {
            border-color: var(--color-primary);
            box-shadow: 0 0 10px rgba(184, 241, 53, 0.2);
        }

        .mobile-menu {
            display: none;
            background: rgba(10, 14, 11, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(184, 241, 53, 0.12);
            padding: 16px 0;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu a {
            display: block;
            padding: 12px 20px;
            font-size: 1.125rem;
            font-weight: 500;
            color: var(--color-text);
            border-left: 3px solid transparent;
            transition: all 0.3s ease;
        }

        .mobile-menu a.active,
        .mobile-menu a:hover {
            border-left-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(184, 241, 53, 0.06);
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-primary);
            color: #0A0E0B;
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            transition: all 0.3s ease;
            border: none;
            letter-spacing: 0.01em;
        }

        .btn-primary:hover {
            background: #c9ff4d;
            color: #0A0E0B;
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            border: 1px solid var(--color-primary);
            transition: all 0.3s ease;
            letter-spacing: 0.01em;
        }

        .btn-secondary:hover {
            background: var(--color-primary);
            color: #0A0E0B;
            box-shadow: var(--shadow-glow);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--color-text-secondary);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: color 0.3s ease;
        }

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

        .breadcrumb .separator {
            color: rgba(184, 241, 53, 0.4);
        }

        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* ===== 筛选Pill ===== */
        .filter-pill {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 18px;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--color-text-secondary);
            background: transparent;
            white-space: nowrap;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .filter-pill:hover {
            border-color: rgba(184, 241, 53, 0.4);
            color: var(--color-primary);
        }

        .filter-pill.active {
            background: var(--color-primary);
            color: #0A0E0B;
            border-color: var(--color-primary);
            font-weight: 700;
            box-shadow: var(--shadow-glow);
        }

        /* ===== 卡片 ===== */
        .guide-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid rgba(184, 241, 53, 0.1);
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .guide-card:hover {
            transform: translateY(-3px);
            border-color: rgba(184, 241, 53, 0.45);
            box-shadow: var(--shadow-card);
        }

        .guide-card .card-image-wrapper {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

        .guide-card .card-image-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .guide-card:hover .card-image-wrapper img {
            transform: scale(1.05);
        }

        .guide-card .card-image-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 11, 0.1) 40%, rgba(10, 14, 11, 0.6) 100%);
        }

        .guide-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(10, 14, 11, 0.85);
            color: var(--color-primary);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 9999px;
            border: 1px solid rgba(184, 241, 53, 0.35);
            letter-spacing: 0.02em;
            z-index: 2;
        }

        .guide-card .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .guide-card .card-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .guide-card .card-excerpt {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .guide-card .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.72rem;
            color: rgba(185, 196, 182, 0.6);
            padding-top: 10px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .guide-card .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--color-surface);
            border: 1px solid rgba(184, 241, 53, 0.1);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-item.active {
            border-color: rgba(184, 241, 53, 0.35);
            background: var(--color-elevated);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            user-select: none;
            transition: background 0.2s ease;
            gap: 12px;
        }

        .faq-question:hover {
            background: rgba(184, 241, 53, 0.04);
        }

        .faq-question .faq-q-text {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--color-text);
            flex: 1;
            line-height: 1.5;
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: rgba(184, 241, 53, 0.1);
            color: var(--color-primary);
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
            transition: all 0.3s ease;
        }

        .faq-item.active .faq-icon {
            background: var(--color-primary);
            color: #0A0E0B;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            border-left: 3px solid var(--color-primary);
            padding-left: 14px;
            margin: 0;
        }

        /* ===== 步骤流程 ===== */
        .step-badge {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #0A0E0B;
            font-weight: 900;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            box-shadow: var(--shadow-glow);
        }

        /* ===== 表单 ===== */
        .form-input {
            width: 100%;
            background: #0E130E;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-btn);
            padding: 12px 16px;
            color: var(--color-text);
            font-size: 0.9rem;
            transition: all 0.3s ease;
            letter-spacing: 0.01em;
        }

        .form-input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(184, 241, 53, 0.2);
            background: #0A0E0B;
        }

        .form-input::placeholder {
            color: rgba(185, 196, 182, 0.4);
        }

        .form-label {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-text-secondary);
            margin-bottom: 6px;
            display: block;
        }

        .form-checkbox {
            width: 16px;
            height: 16px;
            border-radius: 4px;
            border: 1px solid rgba(184, 241, 53, 0.4);
            background: #0E130E;
            accent-color: var(--color-primary);
            cursor: pointer;
        }

        /* ===== 页脚 ===== */
        .footer-kaiyun {
            background: #080B08;
            border-top: 1px solid rgba(184, 241, 53, 0.08);
            padding: 48px 0 0;
        }

        .footer-link {
            font-size: 0.8rem;
            color: var(--color-text-secondary);
            transition: color 0.3s ease;
            line-height: 1.8;
        }

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

        /* ===== 分页 ===== */
        .pagination-dot {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--color-text-secondary);
            transition: all 0.3s ease;
            background: transparent;
        }

        .pagination-dot:hover {
            border-color: rgba(184, 241, 53, 0.4);
            color: var(--color-primary);
        }

        .pagination-dot.active {
            background: var(--color-primary);
            color: #0A0E0B;
            border-color: var(--color-primary);
            box-shadow: var(--shadow-glow);
        }

        /* ===== 工具条横滚 ===== */
        .scroll-row {
            display: flex;
            gap: 10px;
            overflow-x: auto;
            padding-bottom: 8px;
            scrollbar-width: thin;
            scrollbar-color: rgba(184, 241, 53, 0.3) transparent;
            -webkit-overflow-scrolling: touch;
        }

        .scroll-row::-webkit-scrollbar {
            height: 4px;
        }

        .scroll-row::-webkit-scrollbar-track {
            background: transparent;
        }

        .scroll-row::-webkit-scrollbar-thumb {
            background: rgba(184, 241, 53, 0.3);
            border-radius: 4px;
        }

        /* ===== 数据高亮 ===== */
        .numeric {
            font-family: var(--font-numeric);
            letter-spacing: 0.02em;
        }

        /* ===== Hero banner ===== */
        .category-hero {
            position: relative;
            min-height: 45vh;
            display: flex;
            align-items: flex-end;
            padding: 4rem 0 3rem;
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(165deg, rgba(10, 14, 11, 0.4) 0%, rgba(10, 14, 11, 0.85) 55%, rgba(10, 14, 11, 0.97) 100%);
            z-index: 1;
        }

        .category-hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        /* ===== 卖点标签 ===== */
        .highlight-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(184, 241, 53, 0.08);
            border: 1px solid rgba(184, 241, 53, 0.25);
            padding: 6px 14px;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            transition: all 0.3s ease;
        }

        .highlight-chip:hover {
            background: rgba(184, 241, 53, 0.15);
            border-color: var(--color-primary);
        }

        /* 隐藏 class */
        .hidden-card {
            display: none !important;
        }

/* roulang page: category5 */
:root {
            --color-primary: #B8F135;
            --color-accent: #FF6B35;
            --color-bg: #0A0E0B;
            --color-surface: #121712;
            --color-elevated: #1A211A;
            --color-text: #F2F7F0;
            --color-text-secondary: #B9C4B6;
            --color-border-subtle: rgba(184, 241, 53, 0.16);
            --color-border-input: rgba(255, 255, 255, 0.1);
            --radius-card: 16px;
            --radius-btn: 12px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 12px rgba(184, 241, 53, 0.45);
            --shadow-glow-accent: 0 0 14px rgba(255, 107, 53, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-numeric: "DIN Alternate", ui-monospace, monospace;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 6px;
        }
        .container-kaiyun {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 768px) {
            .container-kaiyun {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container-kaiyun {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        .navbar {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 14, 11, 0.88);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(184, 241, 53, 0.12);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }
        .navbar:hover {
            background: rgba(10, 14, 11, 0.95);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
        }
        .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .navbar-brand .brand-icon {
            width: 32px;
            height: 32px;
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            font-size: 1.1rem;
            color: #0A0E0B;
            font-weight: 900;
            flex-shrink: 0;
        }
        .navbar-links {
            display: none;
            align-items: center;
            gap: 24px;
            list-style: none;
        }
        @media (min-width: 768px) {
            .navbar-links {
                display: flex;
            }
        }
        .navbar-links a {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color 0.3s ease;
            white-space: nowrap;
        }
        .navbar-links a:hover {
            color: var(--color-primary);
        }
        .navbar-links a.active {
            color: var(--color-primary);
        }
        .navbar-links a.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
            box-shadow: 0 0 8px rgba(184, 241, 53, 0.5);
        }
        .hamburger-btn {
            display: block;
            background: transparent;
            border: 1px solid rgba(184, 241, 53, 0.2);
            border-radius: 8px;
            padding: 8px 10px;
            color: var(--color-text);
            font-size: 1.2rem;
            line-height: 1;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        @media (min-width: 768px) {
            .hamburger-btn {
                display: none;
            }
        }
        .hamburger-btn:hover {
            border-color: var(--color-primary);
            box-shadow: 0 0 10px rgba(184, 241, 53, 0.2);
        }
        .mobile-menu {
            display: none;
            background: rgba(10, 14, 11, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(184, 241, 53, 0.12);
            padding: 16px 0;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu a {
            display: block;
            padding: 12px 20px;
            font-size: 1.125rem;
            font-weight: 500;
            color: var(--color-text);
            border-left: 3px solid transparent;
            transition: all 0.3s ease;
        }
        .mobile-menu a.active,
        .mobile-menu a:hover {
            border-left-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(184, 241, 53, 0.06);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-primary);
            color: #0A0E0B;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            transition: all 0.3s ease;
            white-space: nowrap;
        }
        .btn-primary:hover {
            box-shadow: var(--shadow-glow);
            filter: brightness(1.08);
            color: #0A0E0B;
            transform: translateY(-1px);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--color-primary);
            transition: all 0.3s ease;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            background: var(--color-primary);
            color: #0A0E0B;
            box-shadow: var(--shadow-glow);
        }
        .section-padding {
            padding-top: 4rem;
            padding-bottom: 4rem;
        }
        @media (min-width: 768px) {
            .section-padding {
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }
        @media (min-width: 1024px) {
            .section-padding {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }
        .card-community {
            background: var(--color-surface);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
            overflow: hidden;
        }
        .card-community:hover {
            transform: translateY(-3px);
            border-color: var(--color-primary);
            box-shadow: var(--shadow-glow);
        }
        .pill-btn {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 8px 16px;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            background: transparent;
            border: 1px solid rgba(185, 196, 182, 0.25);
            color: var(--color-text-secondary);
            transition: all 0.3s ease;
            white-space: nowrap;
        }
        .pill-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .pill-btn.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #0A0E0B;
        }
        .badge-num {
            font-family: var(--font-numeric);
            font-weight: 700;
            color: var(--color-primary);
        }
        .faq-item {
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-card);
            background: var(--color-surface);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .faq-item.open {
            border-left: 4px solid var(--color-primary);
            background: var(--color-elevated);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            font-size: 0.875rem;
            font-weight: 700;
            color: var(--color-text);
            cursor: pointer;
            transition: color 0.3s ease;
            background: transparent;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            font-size: 0.875rem;
            line-height: 1.9;
            color: var(--color-text-secondary);
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 16px;
        }
        .footer-kaiyun {
            background: #080B08;
            border-top: 1px solid rgba(184, 241, 53, 0.1);
            padding-top: 48px;
            padding-bottom: 24px;
        }
        .footer-link {
            color: var(--color-text-secondary);
            font-size: 0.8rem;
            transition: color 0.3s ease;
        }
        .footer-link:hover {
            color: var(--color-primary);
        }
        .input-community {
            background: #0E130E;
            border: 1px solid var(--color-border-input);
            border-radius: 10px;
            padding: 10px 14px;
            font-size: 0.875rem;
            color: var(--color-text);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
            width: 100%;
        }
        .input-community:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(184, 241, 53, 0.2);
        }
        .topic-card-image {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #1A211A;
        }
        .topic-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .card-community:hover .topic-card-image img {
            transform: scale(1.05);
        }
        .topic-tag {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(10, 14, 11, 0.8);
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 9999px;
            backdrop-filter: blur(4px);
        }
        .data-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: stretch;
        }
        .data-strip-item {
            flex: 1;
            min-width: 140px;
            background: rgba(18, 23, 18, 0.75);
            border-left: 3px solid var(--color-primary);
            border-radius: 10px;
            padding: 16px 18px;
        }
        .data-strip-item .value {
            font-family: var(--font-numeric);
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .data-strip-item .label {
            font-size: 0.75rem;
            color: var(--color-text-secondary);
            margin-top: 4px;
        }
        .expert-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-card);
            padding: 20px;
            transition: all 0.3s ease;
        }
        .expert-card:hover {
            border-color: var(--color-primary);
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow);
        }
        .avatar-circle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-elevated);
            border: 2px solid var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--color-primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .step-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #0A0E0B;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .hero-banner {
            position: relative;
            min-height: 44vh;
            display: flex;
            align-items: center;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 11, 0.6) 0%, rgba(10, 14, 11, 0.85) 100%);
        }
        .hero-banner-content {
            position: relative;
            z-index: 1;
            padding-top: 3rem;
            padding-bottom: 3rem;
        }
        @media (min-width: 768px) {
            .hero-banner {
                min-height: 48vh;
            }
        }
        @media (min-width: 1024px) {
            .hero-banner {
                min-height: 50vh;
            }
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            color: var(--color-text-secondary);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .sep {
            opacity: 0.5;
        }
        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.3;
            margin-bottom: 8px;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }
        .topic-card-body {
            padding: 16px 18px 18px;
        }
        .topic-card-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }
        .topic-card-desc {
            font-size: 0.825rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .topic-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.72rem;
            color: var(--color-text-secondary);
            font-family: var(--font-numeric);
        }
        .glow-border {
            border-color: var(--color-primary) !important;
            box-shadow: 0 0 12px rgba(184, 241, 53, 0.25);
        }
        .section-divider {
            border-top: 1px solid rgba(184, 241, 53, 0.08);
        }