/* roulang page: index */
:root {
            --color-primary: #00C49A;
            --color-primary-dark: #009A7C;
            --color-secondary: #0F1B2D;
            --color-accent: #FF7A45;
            --color-bg: #F4F7F6;
            --color-surface: #FFFFFF;
            --color-text: #1A2B3C;
            --color-muted: #5F6F7E;
            --radius-card: 24px;
            --radius-btn: 14px;
            --shadow-card: 0 12px 32px rgba(15, 27, 45, 0.08);
            --shadow-hover: 0 20px 48px rgba(0, 196, 154, 0.18);
            --shadow-drawer: 0 24px 64px rgba(0, 0, 0, 0.35);
            --transition-base: 0.3s cubic-bezier(.4, 0, .2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Inter", "Roboto", sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        :focus-visible {
            outline: 3px solid rgba(0, 196, 154, 0.6);
            outline-offset: 3px;
        }
        .brand-gradient-text {
            background: linear-gradient(135deg, #00C49A 0%, #00D9B0 50%, #009A7C 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-hero-pattern {
            background-image: linear-gradient(160deg, rgba(15, 27, 45, 0.92) 0%, rgba(15, 27, 45, 0.75) 40%, rgba(0, 196, 154, 0.35) 100%), url('/assets/images/c4c784e2f032a177.jpg');
            background-size: cover;
            background-position: center;
        }
        .kpi-badge-number {
            font-size: 2.25rem;
            line-height: 1.1;
            font-weight: 800;
            background: linear-gradient(135deg, #FFFFFF 0%, #D4FFF5 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .card-hover {
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            border: 1px solid rgba(15, 27, 45, 0.06);
        }
        .card-hover:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 196, 154, 0.25);
        }
        .btn-primary {
            background: linear-gradient(135deg, #00C49A 0%, #009A7C 100%);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            border: none;
            cursor: pointer;
            box-shadow: 0 8px 20px rgba(0, 196, 154, 0.25);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 32px rgba(0, 196, 154, 0.4);
            background: linear-gradient(135deg, #00D9B0 0%, #00A887 100%);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            cursor: pointer;
        }
        .btn-outline:hover {
            background: rgba(0, 196, 154, 0.1);
            color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            cursor: pointer;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }
        .badge-tag {
            background: rgba(0, 196, 154, 0.12);
            color: var(--color-primary-dark);
            font-size: 0.8rem;
            padding: 0.4rem 0.85rem;
            border-radius: 999px;
            font-weight: 500;
            display: inline-block;
        }
        .top-decor-line {
            position: relative;
            overflow: hidden;
        }
        .top-decor-line::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #00C49A, #00D9B0, #009A7C);
            opacity: 0.8;
        }
        .nav-drawer {
            position: fixed;
            top: 0;
            right: -100%;
            width: 100%;
            height: 100vh;
            z-index: 1000;
            background: linear-gradient(145deg, #0F1B2D 0%, #1B2A40 100%);
            transition: right 0.4s cubic-bezier(.4, 0, .2, 1);
            display: flex;
            flex-direction: column;
            padding: 2rem 1.5rem 2rem 2rem;
            overflow-y: auto;
        }
        .nav-drawer.open {
            right: 0;
        }
        .nav-drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 27, 45, 0.6);
            backdrop-filter: blur(6px);
            z-index: 950;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.4s ease;
        }
        .nav-drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        @media (min-width: 1024px) {
            .nav-drawer {
                width: 48vw;
                right: -48vw;
            }
            .nav-drawer.open {
                right: 0;
            }
        }
        .drawer-link {
            color: #E8F0EE;
            font-size: 1.6rem;
            font-weight: 700;
            padding: 0.7rem 0;
            display: block;
            transition: color var(--transition-base), transform var(--transition-base);
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }
        .drawer-link:hover {
            color: var(--color-primary);
            transform: translateX(6px);
        }
        .drawer-link-desc {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            font-weight: 400;
            margin-bottom: 0.8rem;
        }
        .faq-accordion-item {
            border-bottom: 1px solid rgba(15, 27, 45, 0.08);
        }
        .faq-accordion-question {
            cursor: pointer;
            padding: 1.2rem 0;
            font-weight: 700;
            font-size: 1.05rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--color-text);
            transition: color var(--transition-base);
        }
        .faq-accordion-question:hover {
            color: var(--color-primary-dark);
        }
        .faq-accordion-icon {
            font-size: 1.6rem;
            font-weight: 300;
            transition: transform 0.3s ease;
            flex-shrink: 0;
            color: var(--color-primary);
        }
        .faq-accordion-item.active .faq-accordion-icon {
            transform: rotate(45deg);
        }
        .faq-accordion-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            color: var(--color-muted);
            font-size: 0.95rem;
        }
        .faq-accordion-item.active .faq-accordion-answer {
            max-height: 300px;
        }
        .hamburger-btn {
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.35rem;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            transition: background var(--transition-base);
        }
        .hamburger-btn:hover {
            background: rgba(0, 196, 154, 0.1);
        }
        .hamburger-line {
            width: 28px;
            height: 2.5px;
            background: var(--color-secondary);
            border-radius: 4px;
            transition: all var(--transition-base);
        }
        .hamburger-btn:hover .hamburger-line {
            background: var(--color-primary-dark);
        }
        .drawer-close-btn {
            background: rgba(255, 255, 255, 0.08);
            border: none;
            color: #fff;
            font-size: 2rem;
            cursor: pointer;
            width: 44px;
            height: 44px;
            border-radius: 999px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background var(--transition-base), color var(--transition-base);
            flex-shrink: 0;
        }
        .drawer-close-btn:hover {
            background: rgba(255, 255, 255, 0.2);
            color: var(--color-primary);
        }
        .section-pad {
            padding: 4.5rem 0;
        }
        @media (max-width: 640px) {
            .section-pad {
                padding: 2.8rem 0;
            }
        }
        .kpi-badge-card {
            background: var(--color-secondary);
            border-radius: var(--radius-card);
            padding: 2rem 1.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .kpi-badge-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #00C49A, #009A7C);
        }
        .live-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 999px;
            background: #FF4D4F;
            animation: live-pulse 1.5s infinite;
            margin-right: 0.4rem;
            vertical-align: middle;
        }
        @keyframes live-pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }
        .milestone-dot {
            width: 16px;
            height: 16px;
            border-radius: 999px;
            background: var(--color-primary);
            border: 3px solid #fff;
            box-shadow: 0 0 0 3px rgba(0, 196, 154, 0.3);
            flex-shrink: 0;
            margin-top: 0.25rem;
        }
        .milestone-line {
            width: 2px;
            flex: 1;
            background: linear-gradient(180deg, rgba(0, 196, 154, 0.5), rgba(0, 196, 154, 0.08));
            margin: 0 0.5rem;
        }
        .news-date-badge {
            background: linear-gradient(135deg, #0F1B2D 0%, #1B2A40 100%);
            color: #fff;
            border-radius: 14px;
            padding: 0.5rem 0.9rem;
            font-weight: 700;
            font-size: 0.8rem;
            text-align: center;
            min-width: 82px;
            display: inline-block;
        }
        .form-input {
            width: 100%;
            padding: 0.85rem 1.2rem;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 0.95rem;
            transition: border-color var(--transition-base), background var(--transition-base);
        }
        .form-input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .form-input:focus {
            border-color: var(--color-primary);
            background: rgba(255, 255, 255, 0.14);
            outline: none;
        }
        .partner-logo {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            padding: 1.2rem 1.5rem;
            text-align: center;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-base);
        }
        .partner-logo:hover {
            border-color: rgba(0, 196, 154, 0.5);
            color: var(--color-primary);
            background: rgba(0, 196, 154, 0.08);
        }
        .comparison-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 2rem;
            box-shadow: var(--shadow-card);
            position: relative;
            transition: all var(--transition-base);
        }
        .comparison-card.before {
            border: 1px solid rgba(255, 122, 69, 0.3);
            background: linear-gradient(145deg, #fffafa, #fff5f0);
        }
        .comparison-card.after {
            border: 1px solid rgba(0, 196, 154, 0.4);
            background: linear-gradient(145deg, #f0fffb, #ffffff);
            box-shadow: var(--shadow-hover);
        }
        .comparison-label {
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            padding: 0.3rem 0.9rem;
            border-radius: 999px;
            display: inline-block;
            margin-bottom: 1rem;
        }
        .comparison-label.before {
            background: rgba(255, 122, 69, 0.15);
            color: #E55A2B;
        }
        .comparison-label.after {
            background: rgba(0, 196, 154, 0.15);
            color: var(--color-primary-dark);
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-base), padding-left var(--transition-base);
            display: inline-block;
            padding: 0.2rem 0;
        }
        .footer-link:hover {
            color: var(--color-primary);
            padding-left: 4px;
        }
        .scroll-card {
            background: var(--color-surface);
            border-radius: 20px;
            padding: 1.4rem;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            border: 1px solid rgba(15, 27, 45, 0.05);
        }
        .scroll-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-secondary);
            margin-bottom: 0.8rem;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            color: var(--color-muted);
            font-size: 1rem;
            max-width: 720px;
        }
        @media (max-width: 640px) {
            .section-title {
                font-size: 1.45rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #00C49A;
            --color-primary-dark: #009A7C;
            --color-secondary: #0F1B2D;
            --color-accent: #FF7A45;
            --color-bg: #F4F7F6;
            --color-surface: #FFFFFF;
            --color-text: #1A2B3C;
            --color-muted: #5F6F7E;
            --radius-card: 24px;
            --radius-btn: 14px;
            --shadow-card: 0 12px 32px rgba(15, 27, 45, 0.08);
            --shadow-hover: 0 20px 48px rgba(0, 196, 154, 0.18);
            --shadow-drawer: 0 24px 64px rgba(0, 0, 0, 0.35);
            --transition-base: 0.3s cubic-bezier(.4, 0, .2, 1);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Inter", "Roboto", sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        .brand-gradient-text {
            background: linear-gradient(135deg, #00C49A 0%, #00D9B0 50%, #009A7C 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-hero-pattern {
            background-image: linear-gradient(160deg, rgba(15, 27, 45, 0.92) 0%, rgba(15, 27, 45, 0.75) 40%, rgba(0, 196, 154, 0.35) 100%), url('/assets/images/c4c784e2f032a177.jpg');
            background-size: cover;
            background-position: center;
        }
        .kpi-badge-number {
            font-size: 2.25rem;
            line-height: 1.1;
            font-weight: 800;
            background: linear-gradient(135deg, #FFFFFF 0%, #D4FFF5 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .card-hover {
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            border: 1px solid rgba(15, 27, 45, 0.06);
        }
        .card-hover:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 196, 154, 0.25);
        }
        .btn-primary {
            background: linear-gradient(135deg, #00C49A 0%, #009A7C 100%);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            border: none;
            cursor: pointer;
            box-shadow: 0 8px 20px rgba(0, 196, 154, 0.25);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 32px rgba(0, 196, 154, 0.4);
            background: linear-gradient(135deg, #00D9B0 0%, #00A887 100%);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            cursor: pointer;
        }
        .btn-outline:hover {
            background: rgba(0, 196, 154, 0.1);
            color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            cursor: pointer;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }
        .badge-tag {
            background: rgba(0, 196, 154, 0.12);
            color: var(--color-primary-dark);
            font-size: 0.8rem;
            padding: 0.4rem 0.85rem;
            border-radius: 999px;
            font-weight: 500;
            display: inline-block;
        }
        .nav-drawer {
            position: fixed;
            top: 0;
            right: -48vw;
            width: 48vw;
            height: 100vh;
            z-index: 1000;
            background: linear-gradient(145deg, #0F1B2D 0%, #1B2A40 100%);
            transition: right 0.4s cubic-bezier(.4, 0, .2, 1);
            display: flex;
            flex-direction: column;
            padding: 2rem 1.5rem 2rem 2rem;
            overflow-y: auto;
            box-shadow: var(--shadow-drawer);
        }
        .nav-drawer.open {
            right: 0;
        }
        .nav-drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 27, 45, 0.6);
            backdrop-filter: blur(6px);
            z-index: 950;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.4s ease;
        }
        .nav-drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .drawer-link {
            color: #E8F0EE;
            font-size: 1.6rem;
            font-weight: 700;
            padding: 0.7rem 0;
            display: block;
            transition: color var(--transition-base), transform var(--transition-base);
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }
        .drawer-link:hover {
            color: var(--color-primary);
            transform: translateX(6px);
        }
        .drawer-link-desc {
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.9rem;
            margin-top: -0.2rem;
            margin-bottom: 1rem;
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            transition: color var(--transition-base);
        }
        .footer-link:hover {
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, opacity 0.3s ease;
            opacity: 0;
        }
        .faq-item.open .faq-answer {
            opacity: 1;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-icon {
            transition: transform 0.3s ease;
            display: inline-block;
        }
        .tag-cloud-link {
            background: #fff;
            border: 1px solid rgba(15, 27, 45, 0.08);
            border-radius: 999px;
            padding: 0.55rem 1.2rem;
            font-size: 0.9rem;
            color: var(--color-muted);
            transition: all var(--transition-base);
            display: inline-block;
        }
        .tag-cloud-link:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            box-shadow: 0 8px 20px rgba(0, 196, 154, 0.3);
        }
        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(0, 196, 154, 0.4);
        }
        .breadcrumb-link {
            color: var(--color-muted);
            font-size: 0.9rem;
            transition: color var(--transition-base);
        }
        .breadcrumb-link:hover {
            color: var(--color-primary);
        }
        @media (max-width: 640px) {
            .nav-drawer {
                width: 100%;
                right: -100%;
            }
            .nav-drawer.open {
                right: 0;
            }
            .drawer-link {
                font-size: 1.3rem;
            }
            .kpi-badge-number {
                font-size: 1.75rem;
            }
            .btn-primary,
            .btn-outline,
            .btn-outline-light {
                padding: 0.75rem 1.5rem;
                font-size: 0.9rem;
            }
        }
        @media (min-width: 641px) and (max-width: 1024px) {
            .nav-drawer {
                width: 55vw;
                right: -55vw;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #00C49A;
            --color-primary-dark: #009A7C;
            --color-secondary: #0F1B2D;
            --color-accent: #FF7A45;
            --color-bg: #F4F7F6;
            --color-surface: #FFFFFF;
            --color-text: #1A2B3C;
            --color-muted: #5F6F7E;
            --radius-card: 24px;
            --radius-btn: 14px;
            --shadow-card: 0 12px 32px rgba(15, 27, 45, 0.08);
            --shadow-hover: 0 20px 48px rgba(0, 196, 154, 0.18);
            --shadow-drawer: 0 24px 64px rgba(0, 0, 0, 0.35);
            --transition-base: 0.3s cubic-bezier(.4, 0, .2, 1);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Inter", "Roboto", sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        .brand-gradient-text {
            background: linear-gradient(135deg, #00C49A 0%, #00D9B0 50%, #009A7C 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .card-hover {
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            border: 1px solid rgba(15, 27, 45, 0.06);
        }
        .card-hover:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 196, 154, 0.25);
        }
        .btn-primary {
            background: linear-gradient(135deg, #00C49A 0%, #009A7C 100%);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            border: none;
            cursor: pointer;
            box-shadow: 0 8px 20px rgba(0, 196, 154, 0.25);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 32px rgba(0, 196, 154, 0.4);
            background: linear-gradient(135deg, #00D9B0 0%, #00A887 100%);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            cursor: pointer;
        }
        .btn-outline:hover {
            background: rgba(0, 196, 154, 0.1);
            color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            cursor: pointer;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }
        .badge-tag {
            background: rgba(0, 196, 154, 0.12);
            color: var(--color-primary-dark);
            font-size: 0.8rem;
            padding: 0.4rem 0.85rem;
            border-radius: 999px;
            font-weight: 500;
            display: inline-block;
            transition: all var(--transition-base);
        }
        .badge-tag:hover {
            background: rgba(0, 196, 154, 0.22);
            color: var(--color-primary-dark);
        }
        .nav-drawer {
            position: fixed;
            top: 0;
            right: -48vw;
            width: 48vw;
            height: 100vh;
            z-index: 1000;
            background: linear-gradient(145deg, #0F1B2D 0%, #1B2A40 100%);
            transition: right 0.4s cubic-bezier(.4, 0, .2, 1);
            display: flex;
            flex-direction: column;
            padding: 2rem 1.5rem 2rem 2rem;
            overflow-y: auto;
            box-shadow: var(--shadow-drawer);
        }
        .nav-drawer.open {
            right: 0;
        }
        .nav-drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 27, 45, 0.6);
            backdrop-filter: blur(6px);
            z-index: 950;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.4s ease;
        }
        .nav-drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .drawer-link {
            color: #E8F0EE;
            font-size: 1.6rem;
            font-weight: 700;
            padding: 0.7rem 0;
            display: block;
            transition: color var(--transition-base), transform var(--transition-base);
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }
        .drawer-link:hover {
            color: var(--color-primary);
            transform: translateX(-4px);
        }
        .drawer-link.active {
            color: var(--color-primary);
        }
        .drawer-link-desc {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.85rem;
            margin-bottom: 0.9rem;
            line-height: 1.5;
        }
        .article-list-item {
            transition: all var(--transition-base);
            border: 1px solid rgba(15, 27, 45, 0.06);
            border-radius: var(--radius-card);
            background: var(--color-surface);
            padding: 1.5rem 1.75rem;
            margin-bottom: 1.25rem;
            box-shadow: var(--shadow-card);
        }
        .article-list-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 196, 154, 0.25);
        }
        .sidebar-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 1.5rem 1.75rem;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(15, 27, 45, 0.06);
        }
        .faq-item {
            border-bottom: 1px solid rgba(15, 27, 45, 0.08);
            padding: 1.125rem 0;
            cursor: pointer;
        }
        .faq-question {
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            color: var(--color-text);
            transition: color var(--transition-base);
        }
        .faq-question:hover {
            color: var(--color-primary-dark);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(.4, 0, .2, 1);
            color: var(--color-muted);
            font-size: 0.925rem;
            line-height: 1.7;
        }
        .faq-answer.open {
            max-height: 220px;
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 196, 154, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--color-primary-dark);
            transition: transform var(--transition-base);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--color-primary);
            color: #fff;
        }
        .breadcrumb-link {
            color: var(--color-muted);
            font-size: 0.85rem;
            transition: color var(--transition-base);
        }
        .breadcrumb-link:hover {
            color: var(--color-primary-dark);
        }
        .breadcrumb-separator {
            color: rgba(15, 27, 45, 0.3);
            margin: 0 0.5rem;
            font-size: 0.8rem;
        }
        .kpi-number {
            font-size: 1.9rem;
            font-weight: 800;
            background: linear-gradient(135deg, #00C49A 0%, #009A7C 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.875rem;
            transition: color var(--transition-base);
        }
        .footer-link:hover {
            color: var(--color-primary);
        }
        .drawer-close-btn {
            position: absolute;
            top: 1.5rem;
            right: 1.5rem;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.08);
            border: none;
            color: #fff;
            font-size: 1.25rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-base);
        }
        .drawer-close-btn:hover {
            background: rgba(0, 196, 154, 0.25);
            color: var(--color-primary);
        }
        @media (max-width: 1024px) {
            .nav-drawer {
                width: 100%;
                right: -100%;
            }
        }
        @media (max-width: 640px) {
            .drawer-link {
                font-size: 1.25rem;
            }
            .article-list-item {
                padding: 1.125rem 1.25rem;
            }
            .sidebar-card {
                padding: 1.125rem 1.25rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #00C49A;
            --color-primary-dark: #009A7C;
            --color-secondary: #0F1B2D;
            --color-accent: #FF7A45;
            --color-bg: #F4F7F6;
            --color-surface: #FFFFFF;
            --color-text: #1A2B3C;
            --color-muted: #5F6F7E;
            --radius-card: 24px;
            --radius-btn: 14px;
            --shadow-card: 0 12px 32px rgba(15, 27, 45, 0.08);
            --shadow-hover: 0 20px 48px rgba(0, 196, 154, 0.18);
            --shadow-drawer: 0 24px 64px rgba(0, 0, 0, 0.35);
            --transition-base: 0.3s cubic-bezier(.4, 0, .2, 1);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Inter", "Roboto", sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        .brand-gradient-text {
            background: linear-gradient(135deg, #00C49A 0%, #00D9B0 50%, #009A7C 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .card-hover {
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            border: 1px solid rgba(15, 27, 45, 0.06);
        }
        .card-hover:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 196, 154, 0.25);
        }
        .btn-primary {
            background: linear-gradient(135deg, #00C49A 0%, #009A7C 100%);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            border: none;
            cursor: pointer;
            box-shadow: 0 8px 20px rgba(0, 196, 154, 0.25);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 32px rgba(0, 196, 154, 0.4);
            background: linear-gradient(135deg, #00D9B0 0%, #00A887 100%);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            cursor: pointer;
        }
        .btn-outline:hover {
            background: rgba(0, 196, 154, 0.1);
            color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            transform: translateY(-2px);
        }
        .badge-tag {
            background: rgba(0, 196, 154, 0.12);
            color: var(--color-primary-dark);
            font-size: 0.8rem;
            padding: 0.4rem 0.85rem;
            border-radius: 999px;
            font-weight: 500;
            display: inline-block;
        }
        .nav-drawer {
            position: fixed;
            top: 0;
            right: -48vw;
            width: 48vw;
            height: 100vh;
            z-index: 1000;
            background: linear-gradient(145deg, #0F1B2D 0%, #1B2A40 100%);
            transition: right 0.4s cubic-bezier(.4, 0, .2, 1);
            display: flex;
            flex-direction: column;
            padding: 2rem 1.5rem 2rem 2rem;
            overflow-y: auto;
            box-shadow: var(--shadow-drawer);
        }
        .nav-drawer.open {
            right: 0;
        }
        .nav-drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 27, 45, 0.6);
            backdrop-filter: blur(6px);
            z-index: 950;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.4s ease;
        }
        .nav-drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .drawer-link {
            color: #E8F0EE;
            font-size: 1.6rem;
            font-weight: 700;
            padding: 0.7rem 0;
            display: block;
            transition: color var(--transition-base), transform var(--transition-base);
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }
        .drawer-link:hover {
            color: var(--color-primary);
            transform: translateX(6px);
        }
        .drawer-link.active {
            color: var(--color-primary);
        }
        .drawer-link-desc {
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.85rem;
            margin-bottom: 0.5rem;
        }
        .header-bar {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(15, 27, 45, 0.06);
            position: sticky;
            top: 0;
            z-index: 900;
            height: 64px;
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-base);
            font-size: 0.9rem;
        }
        .footer-link:hover {
            color: var(--color-primary);
        }
        .breadcrumb-link {
            color: var(--color-muted);
            transition: color var(--transition-base);
            font-size: 0.85rem;
        }
        .breadcrumb-link:hover {
            color: var(--color-primary);
        }
        .breadcrumb-current {
            color: var(--color-primary-dark);
            font-size: 0.85rem;
            font-weight: 500;
        }
        .article-card {
            background: var(--color-surface);
            border-radius: 20px;
            padding: 1.5rem;
            border: 1px solid rgba(15, 27, 45, 0.06);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: rgba(0, 196, 154, 0.25);
        }
        .tag-cloud-item {
            display: inline-block;
            background: rgba(0, 196, 154, 0.1);
            color: var(--color-primary-dark);
            font-size: 0.8rem;
            padding: 0.35rem 0.8rem;
            border-radius: 999px;
            margin: 0.25rem;
            transition: all var(--transition-base);
            cursor: pointer;
            border: 1px solid transparent;
        }
        .tag-cloud-item:hover {
            background: rgba(0, 196, 154, 0.2);
            border-color: var(--color-primary);
            color: var(--color-primary-dark);
        }
        .stats-card {
            background: var(--color-secondary);
            border-radius: 20px;
            padding: 1.5rem;
            color: #fff;
        }
        .stats-number {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, #00C49A 0%, #D4FFF5 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.1;
        }
        .faq-item {
            border: 1px solid rgba(15, 27, 45, 0.08);
            border-radius: 16px;
            overflow: hidden;
            margin-bottom: 0.8rem;
            background: var(--color-surface);
            transition: border-color var(--transition-base);
        }
        .faq-item:hover {
            border-color: rgba(0, 196, 154, 0.3);
        }
        .faq-question {
            padding: 1rem 1.25rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text);
            background: transparent;
            width: 100%;
            text-align: left;
            border: none;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            color: var(--color-muted);
            font-size: 0.9rem;
            padding: 0 1.25rem;
        }
        .faq-answer.open {
            max-height: 200px;
            padding: 0 1.25rem 1rem 1.25rem;
        }
        .faq-icon {
            transition: transform var(--transition-base);
            flex-shrink: 0;
            color: var(--color-primary);
        }
        .faq-icon.rotate {
            transform: rotate(45deg);
        }
        .subscribe-panel {
            background: linear-gradient(135deg, #0F1B2D 0%, #1B2A40 60%, #0D3A32 100%);
            border-radius: 28px;
            padding: 2.5rem 2rem;
            color: #fff;
        }
        .subscribe-input {
            border-radius: 12px;
            padding: 0.75rem 1.1rem;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            outline: none;
            transition: border-color var(--transition-base);
            font-size: 0.9rem;
        }
        .subscribe-input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .subscribe-input:focus {
            border-color: var(--color-primary);
        }
        .article-title {
            font-weight: 700;
            font-size: 1.1rem;
            line-height: 1.4;
            color: var(--color-text);
            margin-bottom: 0.5rem;
            transition: color var(--transition-base);
        }
        .article-title:hover {
            color: var(--color-primary-dark);
        }
        .article-summary {
            color: var(--color-muted);
            font-size: 0.88rem;
            margin-bottom: 0.8rem;
        }
        .article-date {
            font-size: 0.78rem;
            color: var(--color-muted);
            display: block;
            margin-bottom: 0.3rem;
        }
        .read-more-btn {
            color: var(--color-primary);
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .read-more-btn:hover {
            color: var(--color-primary-dark);
            gap: 0.55rem;
        }
        .section-title {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 0.5rem;
        }
        .section-subtitle {
            color: var(--color-muted);
            font-size: 0.92rem;
            margin-bottom: 2rem;
        }
        @media (max-width: 1024px) {
            .nav-drawer {
                width: 70vw;
                right: -70vw;
            }
        }
        @media (max-width: 640px) {
            .nav-drawer {
                width: 100vw;
                right: -100vw;
            }
            .header-bar {
                height: 56px;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .article-card {
                padding: 1.1rem;
            }
            .stats-number {
                font-size: 1.5rem;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #00C49A;
            --color-primary-dark: #009A7C;
            --color-secondary: #0F1B2D;
            --color-accent: #FF7A45;
            --color-bg: #F4F7F6;
            --color-surface: #FFFFFF;
            --color-text: #1A2B3C;
            --color-muted: #5F6F7E;
            --radius-card: 24px;
            --radius-btn: 14px;
            --shadow-card: 0 12px 32px rgba(15, 27, 45, 0.08);
            --shadow-hover: 0 20px 48px rgba(0, 196, 154, 0.18);
            --shadow-drawer: 0 24px 64px rgba(0, 0, 0, 0.35);
            --transition-base: 0.3s cubic-bezier(.4, 0, .2, 1);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Inter", "Roboto", sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        .brand-gradient-text {
            background: linear-gradient(135deg, #00C49A 0%, #00D9B0 50%, #009A7C 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .card-hover {
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            border: 1px solid rgba(15, 27, 45, 0.06);
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }
        .card-hover:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 196, 154, 0.25);
        }
        .btn-primary {
            background: linear-gradient(135deg, #00C49A 0%, #009A7C 100%);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            border: none;
            cursor: pointer;
            box-shadow: 0 8px 20px rgba(0, 196, 154, 0.25);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 32px rgba(0, 196, 154, 0.4);
            background: linear-gradient(135deg, #00D9B0 0%, #00A887 100%);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            cursor: pointer;
        }
        .btn-outline:hover {
            background: rgba(0, 196, 154, 0.1);
            color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            cursor: pointer;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }
        .badge-tag {
            background: rgba(0, 196, 154, 0.12);
            color: var(--color-primary-dark);
            font-size: 0.8rem;
            padding: 0.4rem 0.85rem;
            border-radius: 999px;
            font-weight: 500;
            display: inline-block;
            transition: all var(--transition-base);
            cursor: default;
        }
        .badge-tag:hover {
            background: rgba(0, 196, 154, 0.22);
            color: var(--color-primary-dark);
        }
        .nav-drawer {
            position: fixed;
            top: 0;
            right: -48vw;
            width: 48vw;
            height: 100vh;
            z-index: 1000;
            background: linear-gradient(145deg, #0F1B2D 0%, #1B2A40 100%);
            transition: right 0.4s cubic-bezier(.4, 0, .2, 1);
            display: flex;
            flex-direction: column;
            padding: 2rem 1.5rem 2rem 2rem;
            overflow-y: auto;
            box-shadow: var(--shadow-drawer);
        }
        .nav-drawer.open {
            right: 0;
        }
        .nav-drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 27, 45, 0.6);
            backdrop-filter: blur(6px);
            z-index: 950;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.4s ease;
        }
        .nav-drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .drawer-link {
            color: #E8F0EE;
            font-size: 1.6rem;
            font-weight: 700;
            padding: 0.7rem 0;
            display: block;
            transition: color var(--transition-base), transform var(--transition-base);
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }
        .drawer-link:hover {
            color: #00C49A;
            transform: translateX(4px);
        }
        .drawer-link.active {
            color: #00C49A;
            border-bottom-color: rgba(0, 196, 154, 0.35);
        }
        .drawer-link-desc {
            color: rgba(232, 240, 238, 0.55);
            font-size: 0.85rem;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .drawer-close {
            background: rgba(255, 255, 255, 0.08);
            border: none;
            color: #fff;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-base);
            font-size: 1.2rem;
        }
        .drawer-close:hover {
            background: rgba(255, 255, 255, 0.18);
            transform: rotate(90deg);
        }
        .topbar {
            position: sticky;
            top: 0;
            z-index: 900;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(15, 27, 45, 0.06);
            height: 64px;
        }
        .topbar-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1rem;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            transition: color var(--transition-base);
            display: inline-block;
            padding: 0.2rem 0;
        }
        .footer-link:hover {
            color: #00C49A;
        }
        .article-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem 0;
            border-bottom: 1px solid rgba(15, 27, 45, 0.06);
            transition: all var(--transition-base);
        }
        .article-item:last-child {
            border-bottom: none;
        }
        .article-item:hover .article-title {
            color: var(--color-primary-dark);
        }
        .article-date-badge {
            min-width: 52px;
            height: 52px;
            border-radius: 16px;
            background: var(--color-secondary);
            color: #fff;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            line-height: 1.15;
            flex-shrink: 0;
        }
        .article-date-badge span {
            font-size: 0.7rem;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.7);
        }
        .article-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-text);
            transition: color var(--transition-base);
            letter-spacing: -0.01em;
        }
        .article-summary {
            color: var(--color-muted);
            font-size: 0.9rem;
            line-height: 1.65;
            margin-top: 0.4rem;
        }
        .read-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.88rem;
            transition: all var(--transition-base);
            cursor: pointer;
            background: none;
            border: none;
            padding: 0.4rem 0;
        }
        .read-more-btn:hover {
            color: var(--color-primary-dark);
            gap: 0.55rem;
        }
        .tag-cloud-item {
            display: inline-block;
            background: rgba(0, 196, 154, 0.1);
            color: var(--color-primary-dark);
            font-size: 0.82rem;
            padding: 0.5rem 1rem;
            border-radius: 999px;
            font-weight: 500;
            transition: all var(--transition-base);
            cursor: pointer;
            border: 1px solid transparent;
        }
        .tag-cloud-item:hover {
            background: rgba(0, 196, 154, 0.2);
            border-color: rgba(0, 196, 154, 0.3);
            transform: translateY(-2px);
        }
        .faq-item {
            border-bottom: 1px solid rgba(15, 27, 45, 0.06);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            text-align: left;
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text);
            padding: 1.25rem 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            transition: color var(--transition-base);
            gap: 1rem;
        }
        .faq-question:hover {
            color: var(--color-primary-dark);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 196, 154, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--color-primary);
            transition: all var(--transition-base);
            font-weight: 400;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            color: var(--color-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-answer.open {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 0 1.25rem 0;
        }
        .sidebar-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 1.5rem;
            border: 1px solid rgba(15, 27, 45, 0.06);
        }
        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--color-text);
        }
        .data-stat-number {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(135deg, #00C49A 0%, #009A7C 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.1;
        }
        .breadcrumb-link {
            color: var(--color-muted);
            font-size: 0.85rem;
            transition: color var(--transition-base);
        }
        .breadcrumb-link:hover {
            color: var(--color-primary);
        }
        .breadcrumb-sep {
            color: rgba(95, 111, 126, 0.5);
            font-size: 0.8rem;
            margin: 0 0.4rem;
        }
        .equipment-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(0, 196, 154, 0.15), rgba(0, 154, 124, 0.15));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            flex-shrink: 0;
        }
        .section-pad {
            padding: 3.5rem 0;
        }
        @media (max-width: 1024px) {
            .nav-drawer {
                width: 60vw;
                right: -60vw;
            }
        }
        @media (max-width: 640px) {
            .nav-drawer {
                width: 100%;
                right: -100%;
                padding: 1.5rem 1.25rem 2rem 1.25rem;
            }
            .topbar {
                height: 56px;
            }
            .section-pad {
                padding: 2.25rem 0;
            }
            .article-item {
                flex-direction: column;
                gap: 0.75rem;
                padding: 1rem 0;
            }
            .article-date-badge {
                min-width: auto;
                height: auto;
                flex-direction: row;
                gap: 0.4rem;
                padding: 0.4rem 0.75rem;
                border-radius: 10px;
                font-size: 0.78rem;
                align-self: flex-start;
            }
            .article-date-badge span {
                font-size: 0.7rem;
            }
            .article-title {
                font-size: 1rem;
            }
            .drawer-link {
                font-size: 1.3rem;
            }
            .data-stat-number {
                font-size: 1.6rem;
            }
        }
        @media (min-width: 641px) and (max-width: 1024px) {
            .article-item {
                gap: 1rem;
            }
        }
        .overlay-banner {
            background-image: linear-gradient(135deg, rgba(15, 27, 45, 0.92) 0%, rgba(15, 27, 45, 0.82) 50%, rgba(0, 196, 154, 0.45) 100%), url('/assets/images/66fc413f4240ce03.webp');
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-card);
            overflow: hidden;
            position: relative;
        }
        .overlay-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #00C49A, #FF7A45, #00C49A);
            background-size: 200% 100%;
            animation: shimmer 3s ease-in-out infinite;
        }
        @keyframes shimmer {
            0% {
                background-position: 0% 0;
            }
            50% {
                background-position: 100% 0;
            }
            100% {
                background-position: 0% 0;
            }
        }
        .skip-link {
            position: absolute;
            top: -999px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-primary);
            color: #fff;
            padding: 0.6rem 1.2rem;
            border-radius: 8px;
            font-weight: 600;
            z-index: 2000;
            transition: top 0.3s;
        }
        .skip-link:focus {
            top: 8px;
        }

/* roulang page: category5 */
:root {
            --color-primary: #00C49A;
            --color-primary-dark: #009A7C;
            --color-secondary: #0F1B2D;
            --color-accent: #FF7A45;
            --color-bg: #F4F7F6;
            --color-surface: #FFFFFF;
            --color-text: #1A2B3C;
            --color-muted: #5F6F7E;
            --radius-card: 24px;
            --radius-btn: 14px;
            --shadow-card: 0 12px 32px rgba(15, 27, 45, 0.08);
            --shadow-hover: 0 20px 48px rgba(0, 196, 154, 0.18);
            --shadow-drawer: 0 24px 64px rgba(0, 0, 0, 0.35);
            --transition-base: 0.3s cubic-bezier(.4, 0, .2, 1);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Inter", "Roboto", sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .brand-gradient-text {
            background: linear-gradient(135deg, #00C49A 0%, #00D9B0 50%, #009A7C 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .bg-hero-pattern {
            background-image: linear-gradient(160deg, rgba(15, 27, 45, 0.92) 0%, rgba(15, 27, 45, 0.75) 40%, rgba(0, 196, 154, 0.35) 100%), url('/assets/images/c4c784e2f032a177.jpg');
            background-size: cover;
            background-position: center;
        }

        .kpi-badge-number {
            font-size: 2.25rem;
            line-height: 1.1;
            font-weight: 800;
            background: linear-gradient(135deg, #FFFFFF 0%, #D4FFF5 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .card-hover {
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            border: 1px solid rgba(15, 27, 45, 0.06);
        }
        .card-hover:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 196, 154, 0.25);
        }

        .btn-primary {
            background: linear-gradient(135deg, #00C49A 0%, #009A7C 100%);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            border: none;
            cursor: pointer;
            box-shadow: 0 8px 20px rgba(0, 196, 154, 0.25);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 32px rgba(0, 196, 154, 0.4);
            background: linear-gradient(135deg, #00D9B0 0%, #00A887 100%);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            cursor: pointer;
        }
        .btn-outline:hover {
            background: rgba(0, 196, 154, 0.1);
            color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-btn);
            padding: 0.875rem 2rem;
            font-weight: 600;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            cursor: pointer;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }

        .badge-tag {
            background: rgba(0, 196, 154, 0.12);
            color: var(--color-primary-dark);
            font-size: 0.8rem;
            padding: 0.4rem 0.85rem;
            border-radius: 999px;
            font-weight: 500;
            display: inline-block;
        }

        .nav-drawer {
            position: fixed;
            top: 0;
            right: -48vw;
            width: 48vw;
            height: 100vh;
            z-index: 1000;
            background: linear-gradient(145deg, #0F1B2D 0%, #1B2A40 100%);
            transition: right 0.4s cubic-bezier(.4, 0, .2, 1);
            display: flex;
            flex-direction: column;
            padding: 2rem 1.5rem 2rem 2rem;
            overflow-y: auto;
            box-shadow: var(--shadow-drawer);
        }
        .nav-drawer.open {
            right: 0;
        }

        .nav-drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(15, 27, 45, 0.6);
            backdrop-filter: blur(6px);
            z-index: 950;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.4s ease;
        }
        .nav-drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }

        .drawer-link {
            color: #E8F0EE;
            font-size: 1.6rem;
            font-weight: 700;
            padding: 0.7rem 0;
            display: block;
            transition: color var(--transition-base), transform var(--transition-base);
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }
        .drawer-link:hover {
            color: var(--color-primary);
            transform: translateX(6px);
        }
        .drawer-link.drawer-link-active {
            color: var(--color-primary);
            border-bottom-color: rgba(0, 196, 154, 0.4);
        }

        .drawer-link-desc {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            margin-bottom: 1rem;
            line-height: 1.5;
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-base);
            font-size: 0.95rem;
        }
        .footer-link:hover {
            color: var(--color-primary);
        }

        .breadcrumb-link {
            color: var(--color-muted);
            font-size: 0.9rem;
            transition: color var(--transition-base);
        }
        .breadcrumb-link:hover {
            color: var(--color-primary);
        }

        .article-date-badge {
            background: rgba(0, 196, 154, 0.1);
            color: var(--color-primary-dark);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.45rem 0.8rem;
            border-radius: 8px;
            min-width: 90px;
            text-align: center;
            display: inline-block;
        }

        .article-list-item {
            transition: background var(--transition-base), box-shadow var(--transition-base);
            border-radius: 20px;
            padding: 1.25rem 1.5rem;
            border: 1px solid transparent;
        }
        .article-list-item:hover {
            background: var(--color-surface);
            box-shadow: var(--shadow-card);
            border-color: rgba(0, 196, 154, 0.15);
        }

        .compliance-tag {
            background: rgba(0, 196, 154, 0.08);
            color: var(--color-primary-dark);
            border: 1px solid rgba(0, 196, 154, 0.2);
            font-size: 0.85rem;
            padding: 0.5rem 1.1rem;
            border-radius: 999px;
            font-weight: 500;
            display: inline-block;
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .compliance-tag:hover {
            background: rgba(0, 196, 154, 0.18);
            border-color: var(--color-primary);
            color: var(--color-primary-dark);
        }

        .banner-compact {
            background-image: linear-gradient(135deg, rgba(15, 27, 45, 0.94) 0%, rgba(15, 27, 45, 0.8) 50%, rgba(0, 196, 154, 0.4) 100%), url('/assets/images/e6fc8cabf999b5a0.webp');
            background-size: cover;
            background-position: center;
            min-height: 200px;
            max-height: 240px;
            display: flex;
            align-items: center;
            border-radius: 0 0 28px 28px;
        }

        .stat-side-card {
            background: #0F1B2D;
            border-radius: 24px;
            padding: 2rem 1.5rem;
            border: 1px solid rgba(255, 255, 255, 0.04);
        }

        .faq-item {
            background: var(--color-surface);
            border-radius: 18px;
            border: 1px solid rgba(15, 27, 45, 0.06);
            overflow: hidden;
            transition: box-shadow var(--transition-base);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            padding: 1.2rem 1.5rem;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            user-select: none;
            transition: color var(--transition-base);
        }
        .faq-question:hover {
            color: var(--color-primary-dark);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.5rem;
            color: var(--color-muted);
            font-size: 0.95rem;
        }
        .faq-answer.open {
            max-height: 300px;
            padding-bottom: 1.5rem;
        }
        .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: rgba(0, 196, 154, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform var(--transition-base);
            font-size: 1.3rem;
            color: var(--color-primary);
        }
        .faq-icon.rotate {
            transform: rotate(45deg);
        }

        .form-input {
            width: 100%;
            padding: 0.85rem 1.2rem;
            border-radius: 12px;
            border: 1.5px solid rgba(15, 27, 45, 0.12);
            background: var(--color-surface);
            color: var(--color-text);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            outline: none;
        }
        .form-input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 4px rgba(0, 196, 154, 0.15);
        }

        @media (max-width: 1024px) {
            .nav-drawer {
                width: 100vw;
                right: -100vw;
            }
            .banner-compact {
                max-height: 220px;
                min-height: 180px;
            }
        }

        @media (max-width: 768px) {
            .drawer-link {
                font-size: 1.3rem;
            }
            .article-list-item {
                padding: 1rem;
            }
            .article-date-badge {
                min-width: 80px;
            }
            .banner-compact {
                max-height: 200px;
                min-height: 160px;
                border-radius: 0 0 20px 20px;
            }
        }

        @media (max-width: 520px) {
            .drawer-link {
                font-size: 1.1rem;
                padding: 0.5rem 0;
            }
            .btn-primary,
            .btn-outline,
            .btn-outline-light {
                padding: 0.75rem 1.5rem;
                font-size: 0.9rem;
            }
            .article-list-item {
                padding: 0.85rem;
            }
            .article-date-badge {
                min-width: 70px;
                font-size: 0.7rem;
            }
            .banner-compact {
                max-height: 180px;
                min-height: 140px;
            }
        }