/* roulang page: index */
:root {
            --color-bg: #0a0f1a;
            --color-surface: #141a2e;
            --color-elevated: #1a2140;
            --color-border: rgba(255,255,255,0.08);
            --color-text: #ffffff;
            --color-text-secondary: #a0aec0;
            --color-text-muted: #6b7280;
            --color-brand: #00c853;
            --color-brand-hover: #00e065;
            --color-accent: #ff6d00;
            --color-accent-hover: #ff8533;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-card: 0 2px 16px rgba(0,0,0,0.35), 0 0 0 1px rgba(255,255,255,0.06);
            --shadow-card-hover: 0 8px 32px rgba(0,0,0,0.5), 0 0 0 1px rgba(0,200,83,0.25);
            --shadow-btn: 0 4px 20px rgba(0,200,83,0.3);
            --shadow-btn-hover: 0 6px 28px rgba(0,200,83,0.45);
            --transition-fast: 180ms ease;
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 15, 26, 0.82);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border);
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(10, 15, 26, 0.95);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }

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

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            z-index: 1001;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #00c853, #00e065);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 800;
            color: #0a0f1a;
            flex-shrink: 0;
            box-shadow: 0 0 20px rgba(0, 200, 83, 0.35);
        }

        .logo-text {
            font-weight: 700;
            font-size: 1.05rem;
            color: #ffffff;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo-text span {
            color: #00c853;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #c0c8d8;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-links a.active {
            color: #00c853;
            background: rgba(0, 200, 83, 0.08);
            font-weight: 600;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 600;
            background: linear-gradient(135deg, #00c853, #00a844);
            color: #0a0f1a !important;
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            margin-left: 8px;
        }

        .nav-cta:hover {
            background: linear-gradient(135deg, #00e065, #00c853);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-1px);
            color: #0a0f1a !important;
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #ffffff;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 6px;
            z-index: 1001;
            border-radius: 6px;
            transition: background var(--transition-fast);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        /* Section spacing */
        .section {
            padding: 80px 0;
        }

        .section-sm {
            padding: 50px 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: #00c853;
            margin-bottom: 12px;
            background: rgba(0, 200, 83, 0.08);
            padding: 5px 14px;
            border-radius: 20px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 620px;
            line-height: 1.7;
        }

        /* Hero */
        .hero-section {
            padding: 140px 0 90px;
            position: relative;
            overflow: hidden;
        }

        .hero-bg-glow {
            position: absolute;
            top: -120px;
            right: -180px;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 200, 83, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-bg-glow-2 {
            position: absolute;
            bottom: -100px;
            left: -150px;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 109, 0, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.02em;
            color: #ffffff;
        }

        .hero-content h1 .highlight {
            color: #00c853;
        }

        .hero-content .hero-subtitle {
            font-size: 1.1rem;
            color: #a0aec0;
            margin-bottom: 30px;
            line-height: 1.7;
            max-width: 480px;
        }

        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 26px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, #00c853, #00a844);
            color: #0a0f1a;
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #00e065, #00c853);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: #ffffff;
            border: 1.5px solid rgba(255, 255, 255, 0.2);
        }

        .btn-outline:hover {
            border-color: #00c853;
            color: #00c853;
            background: rgba(0, 200, 83, 0.05);
            transform: translateY(-2px);
        }

        .btn-accent {
            background: linear-gradient(135deg, #ff6d00, #e05d00);
            color: #ffffff;
            box-shadow: 0 4px 20px rgba(255, 109, 0, 0.3);
        }

        .btn-accent:hover {
            background: linear-gradient(135deg, #ff8533, #ff6d00);
            box-shadow: 0 6px 28px rgba(255, 109, 0, 0.45);
            transform: translateY(-2px);
        }

        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-mock-card {
            background: var(--color-elevated);
            border-radius: var(--radius-xl);
            padding: 24px 22px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card), 0 0 60px rgba(0, 200, 83, 0.06);
            width: 100%;
            max-width: 440px;
        }

        .hero-mock-card .mock-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 18px;
            padding-bottom: 14px;
            border-bottom: 1px solid var(--color-border);
        }

        .mock-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #00c853;
            animation: pulse-dot 1.6s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% {
                opacity: 1;
                box-shadow: 0 0 6px #00c853;
            }
            50% {
                opacity: 0.4;
                box-shadow: 0 0 14px #00c853;
            }
        }

        .mock-score-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 14px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 10px;
            margin-bottom: 8px;
            transition: background var(--transition-fast);
        }

        .mock-score-row:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        .mock-team {
            font-weight: 600;
            font-size: 0.9rem;
            color: #e0e4ec;
        }

        .mock-score {
            font-weight: 800;
            font-size: 1.1rem;
            color: #00c853;
            min-width: 36px;
            text-align: center;
        }

        .mock-live-tag {
            font-size: 0.7rem;
            font-weight: 700;
            color: #ff6d00;
            background: rgba(255, 109, 0, 0.12);
            padding: 3px 8px;
            border-radius: 4px;
            letter-spacing: 0.05em;
            animation: blink-tag 1.2s ease-in-out infinite;
        }

        @keyframes blink-tag {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }

        /* Feature cards */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, #00c853, #00e065);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

        .feature-card:hover {
            border-color: rgba(0, 200, 83, 0.35);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(0, 200, 83, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: #00c853;
            margin-bottom: 18px;
        }

        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 0.9rem;
            color: #a0aec0;
            line-height: 1.6;
        }

        /* Category entry card */
        .category-entry-card {
            background: linear-gradient(135deg, #141a2e 0%, #1a2140 100%);
            border: 1px solid rgba(0, 200, 83, 0.2);
            border-radius: var(--radius-xl);
            padding: 40px 32px;
            display: flex;
            align-items: center;
            gap: 30px;
            transition: all var(--transition-smooth);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .category-entry-card:hover {
            border-color: rgba(0, 200, 83, 0.5);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(0, 200, 83, 0.3);
            transform: translateY(-4px);
        }

        .category-entry-card .cat-icon-large {
            width: 70px;
            height: 70px;
            border-radius: 18px;
            background: rgba(0, 200, 83, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: #00c853;
            flex-shrink: 0;
            box-shadow: 0 0 30px rgba(0, 200, 83, 0.15);
        }

        .category-entry-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 6px;
        }

        .category-entry-card p {
            color: #a0aec0;
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .category-entry-card .cat-arrow {
            margin-left: auto;
            font-size: 1.6rem;
            color: #00c853;
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }

        .category-entry-card:hover .cat-arrow {
            transform: translateX(6px);
        }

        /* Stats block */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-item {
            padding: 28px 16px;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
        }

        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: #00c853;
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 0.85rem;
            color: #a0aec0;
            font-weight: 500;
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .step-card {
            text-align: center;
            padding: 30px 18px;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            position: relative;
            transition: all var(--transition-smooth);
        }

        .step-card:hover {
            border-color: rgba(0, 200, 83, 0.3);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, #00c853, #00a844);
            color: #0a0f1a;
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 0 20px rgba(0, 200, 83, 0.25);
        }

        .step-card h4 {
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 6px;
            font-size: 1rem;
        }

        .step-card p {
            font-size: 0.85rem;
            color: #a0aec0;
            line-height: 1.5;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            color: #ffffff;
            font-size: 1rem;
            font-weight: 600;
            padding: 18px 22px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            text-align: left;
            gap: 14px;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .faq-question .faq-icon {
            font-size: 0.8rem;
            color: #00c853;
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 22px;
            color: #a0aec0;
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 22px 18px;
        }

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
        }

        .faq-item.open {
            border-color: rgba(0, 200, 83, 0.3);
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, #141a2e 0%, #1a2140 50%, #141a2e 100%);
            border-radius: var(--radius-xl);
            padding: 60px 40px;
            text-align: center;
            border: 1px solid rgba(0, 200, 83, 0.15);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 250px;
            height: 250px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 200, 83, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: #a0aec0;
            margin-bottom: 28px;
            font-size: 1.05rem;
            position: relative;
            z-index: 1;
        }

        .cta-section .btn {
            position: relative;
            z-index: 1;
        }

        /* Footer */
        .site-footer {
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            padding: 40px 0 28px;
            margin-top: 60px;
        }

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

        .footer-brand {
            font-weight: 700;
            font-size: 1rem;
            color: #ffffff;
        }

        .footer-brand span {
            color: #00c853;
        }

        .footer-links {
            display: flex;
            gap: 20px;
            font-size: 0.85rem;
            color: #a0aec0;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: #a0aec0;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: #00c853;
        }

        .footer-copy {
            font-size: 0.8rem;
            color: #6b7280;
            width: 100%;
            text-align: center;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--color-border);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .hero-visual {
                order: -1;
            }
            .hero-mock-card {
                max-width: 100%;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-title {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 56px;
            }
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: rgba(10, 15, 26, 0.97);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 80px 24px 30px;
                gap: 4px;
                transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                border-left: 1px solid var(--color-border);
                z-index: 1000;
            }
            .nav-links.open {
                right: 0;
            }
            .nav-links a {
                padding: 12px 16px;
                font-size: 1rem;
                width: 100%;
                border-radius: 8px;
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                width: 100%;
                justify-content: center;
            }
            .nav-toggle {
                display: block;
            }
            .hero-section {
                padding: 110px 0 60px;
            }
            .hero-content h1 {
                font-size: 1.8rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .category-entry-card {
                flex-direction: column;
                text-align: center;
                padding: 28px 20px;
                gap: 16px;
            }
            .category-entry-card .cat-arrow {
                margin-left: 0;
            }
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .cta-section {
                padding: 40px 20px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }
            .footer-links {
                justify-content: center;
            }
            .hero-buttons {
                flex-direction: column;
                width: 100%;
            }
            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.5rem;
            }
            .hero-content .hero-subtitle {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-item {
                padding: 18px 10px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .feature-card {
                padding: 22px 18px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0ea55b;
            --color-primary-dark: #0b8a4b;
            --color-primary-light: #e6f7ef;
            --color-accent: #f0a500;
            --color-accent-dark: #d49200;
            --color-bg-dark: #0f1923;
            --color-bg-darker: #0a1219;
            --color-bg-light: #f5f6f8;
            --color-bg-white: #ffffff;
            --color-text-dark: #1a1d23;
            --color-text-body: #3a3d45;
            --color-text-muted: #6b7280;
            --color-text-light: #9ca3af;
            --color-border: #e5e7eb;
            --color-border-light: #f0f1f3;
            --color-danger: #e53e3e;
            --color-success: #0ea55b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --radius-xl: 18px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.10), 0 4px 8px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.06);
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Helvetica Neue', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'JetBrains Mono', 'Consolas', 'Menlo', monospace;
            --transition-fast: 150ms ease;
            --transition-base: 250ms ease;
            --transition-slow: 400ms ease;
            --max-width: 1200px;
            --header-height: 68px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text-body);
            background-color: var(--color-bg-white);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            outline: none;
        }

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

        ul,
        ol {
            list-style: none;
        }

        .container-custom {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding: 0 32px;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding: 0 40px;
            }
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-bg-white);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

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

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-text-dark);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }

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

        nav {
            display: flex;
            align-items: center;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }

        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text-body);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links li a:hover {
            color: var(--color-primary);
            background: var(--color-primary-light);
        }

        .nav-links li a.active {
            color: var(--color-primary);
            background: var(--color-primary-light);
            font-weight: 600;
        }

        .nav-links .nav-cta {
            background: var(--color-accent) !important;
            color: #1a1d23 !important;
            font-weight: 600 !important;
            padding: 9px 18px !important;
            border-radius: var(--radius-sm) !important;
            transition: all var(--transition-base) !important;
            gap: 6px;
        }

        .nav-links .nav-cta:hover {
            background: var(--color-accent-dark) !important;
            color: #1a1d23 !important;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--color-text-dark);
            background: var(--color-bg-light);
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }

            .nav-links {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--color-bg-white);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all var(--transition-base);
                z-index: 999;
            }

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

            .nav-links li {
                width: 100%;
            }

            .nav-links li a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
                justify-content: flex-start;
            }

            .nav-links .nav-cta {
                justify-content: center;
                margin-top: 4px;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 1.05rem;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
        }

        .section {
            padding: 56px 0;
        }

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

        @media (min-width: 1024px) {
            .section {
                padding: 88px 0;
            }
        }

        .section-tight {
            padding: 36px 0;
        }

        @media (min-width: 768px) {
            .section-tight {
                padding: 48px 0;
            }
        }

        .hero-section {
            position: relative;
            background: linear-gradient(160deg, var(--color-bg-dark) 0%, #162230 40%, #0f1923 100%);
            color: #e8eaed;
            padding: 60px 0 64px;
            overflow: hidden;
        }

        @media (min-width: 768px) {
            .hero-section {
                padding: 80px 0 88px;
            }
        }

        @media (min-width: 1024px) {
            .hero-section {
                padding: 96px 0 104px;
            }
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -180px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(14, 165, 91, 0.10) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -120px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(240, 165, 0, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            gap: 32px;
            align-items: flex-start;
        }

        @media (min-width: 768px) {
            .hero-inner {
                flex-direction: row;
                align-items: center;
                gap: 48px;
            }
        }

        .hero-content {
            flex: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(14, 165, 91, 0.18);
            color: #4ade80;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 18px;
            border: 1px solid rgba(14, 165, 91, 0.25);
        }

        .hero-content h1 {
            font-size: 2.1rem;
            font-weight: 800;
            line-height: 1.25;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: -0.03em;
        }

        @media (min-width: 768px) {
            .hero-content h1 {
                font-size: 2.6rem;
            }
        }

        @media (min-width: 1024px) {
            .hero-content h1 {
                font-size: 2.9rem;
            }
        }

        .hero-content h1 .highlight {
            color: var(--color-accent);
        }

        .hero-content p {
            font-size: 1.05rem;
            color: #b0b8c1;
            line-height: 1.75;
            margin-bottom: 24px;
            max-width: 540px;
        }

        @media (min-width: 768px) {
            .hero-content p {
                font-size: 1.1rem;
                margin-bottom: 28px;
            }
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(14, 165, 91, 0.30);
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(14, 165, 91, 0.35);
        }

        .btn-accent {
            background: var(--color-accent);
            color: #1a1d23;
            box-shadow: 0 2px 8px rgba(240, 165, 0, 0.30);
        }

        .btn-accent:hover {
            background: var(--color-accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(240, 165, 0, 0.35);
        }

        .btn-outline {
            background: transparent;
            color: #e8eaed;
            border: 1.5px solid rgba(255, 255, 255, 0.30);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.50);
            color: #fff;
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 1rem;
            border-radius: var(--radius-lg);
        }

        .hero-visual {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-stat-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            width: 100%;
            max-width: 380px;
        }

        @media (max-width: 767px) {
            .hero-stat-cards {
                max-width: 100%;
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }

        .hero-stat-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            text-align: center;
            backdrop-filter: blur(4px);
            transition: all var(--transition-base);
        }

        .hero-stat-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.18);
            transform: translateY(-3px);
        }

        .hero-stat-card .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-accent);
            letter-spacing: -0.02em;
            line-height: 1;
        }

        @media (min-width: 768px) {
            .hero-stat-card .stat-number {
                font-size: 2.2rem;
            }
        }

        .hero-stat-card .stat-label {
            font-size: 0.8rem;
            color: #8899aa;
            margin-top: 6px;
            letter-spacing: 0.02em;
        }

        .cards-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        @media (min-width: 600px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }

        @media (min-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 28px;
            }
        }

        .cards-grid-4 {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        @media (min-width: 600px) {
            .cards-grid-4 {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }

        @media (min-width: 1024px) {
            .cards-grid-4 {
                grid-template-columns: repeat(4, 1fr);
                gap: 24px;
            }
        }

        .feature-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

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

        .feature-card .card-icon-wrap {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .card-icon-green {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }

        .card-icon-amber {
            background: #fef3c7;
            color: #d97706;
        }

        .card-icon-blue {
            background: #e0f0ff;
            color: #2563eb;
        }

        .card-icon-purple {
            background: #f3e8ff;
            color: #7c3aed;
        }

        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .feature-card p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.65;
        }

        .section-title-wrap {
            text-align: center;
            margin-bottom: 40px;
        }

        @media (min-width: 768px) {
            .section-title-wrap {
                margin-bottom: 52px;
            }
        }

        .section-title-wrap h2 {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--color-text-dark);
            letter-spacing: -0.03em;
            margin-bottom: 10px;
        }

        @media (min-width: 768px) {
            .section-title-wrap h2 {
                font-size: 2rem;
            }
        }

        .section-title-wrap p {
            font-size: 1rem;
            color: var(--color-text-muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .dimension-block {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            gap: 16px;
            transition: all var(--transition-base);
        }

        .dimension-block:hover {
            box-shadow: var(--shadow-md);
        }

        .dimension-block .dimension-header {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .dimension-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.1rem;
            background: var(--color-primary-light);
            color: var(--color-primary);
        }

        .dimension-block h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-dark);
        }

        .dimension-block p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        .dimension-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .tag {
            display: inline-block;
            padding: 4px 10px;
            font-size: 0.78rem;
            font-weight: 500;
            border-radius: 14px;
            background: var(--color-bg-light);
            color: var(--color-text-muted);
            white-space: nowrap;
        }

        .tag-green {
            background: var(--color-primary-light);
            color: var(--color-primary-dark);
        }

        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            counter-reset: step;
        }

        @media (min-width: 768px) {
            .steps-list {
                flex-direction: row;
                gap: 20px;
            }
        }

        .step-item {
            flex: 1;
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            position: relative;
            counter-increment: step;
            transition: all var(--transition-base);
        }

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

        .step-item::before {
            content: counter(step);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            margin-bottom: 12px;
            flex-shrink: 0;
        }

        .step-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 6px;
        }

        .step-item p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.55;
        }

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

        .bg-dark-cta {
            background: var(--color-bg-dark);
            color: #e8eaed;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--color-border);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            background: none;
            border: none;
            font-family: inherit;
            transition: all var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

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

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--color-primary);
        }

        .cta-section {
            text-align: center;
            padding: 56px 0;
        }

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

        .cta-section h2 {
            font-size: 1.7rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.03em;
            margin-bottom: 12px;
        }

        @media (min-width: 768px) {
            .cta-section h2 {
                font-size: 2rem;
            }
        }

        .cta-section p {
            font-size: 1rem;
            color: #b0b8c1;
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        .site-footer {
            background: var(--color-bg-darker);
            color: #8899aa;
            padding: 40px 0 28px;
        }

        .footer-inner {
            display: flex;
            flex-direction: column;
            gap: 20px;
            align-items: center;
            text-align: center;
            margin-bottom: 24px;
        }

        @media (min-width: 768px) {
            .footer-inner {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
                text-align: left;
            }
        }

        .footer-brand {
            font-size: 1.1rem;
            font-weight: 700;
            color: #d0d5db;
            letter-spacing: -0.02em;
        }

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

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        @media (min-width: 768px) {
            .footer-links {
                gap: 24px;
                justify-content: flex-end;
            }
        }

        .footer-links a {
            color: #8899aa;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: #d0d5db;
        }

        .footer-copy {
            text-align: center;
            font-size: 0.82rem;
            color: #667788;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.55rem;
            }

            .hero-content p {
                font-size: 0.92rem;
            }

            .hero-stat-cards {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .hero-stat-card {
                padding: 14px 10px;
            }

            .hero-stat-card .stat-number {
                font-size: 1.4rem;
            }

            .hero-stat-card .stat-label {
                font-size: 0.72rem;
            }

            .btn {
                padding: 10px 18px;
                font-size: 0.88rem;
            }

            .btn-lg {
                padding: 12px 22px;
                font-size: 0.92rem;
            }

            .feature-card {
                padding: 20px 16px;
            }

            .feature-card h3 {
                font-size: 1rem;
            }

            .section-title-wrap h2 {
                font-size: 1.4rem;
            }

            .step-item {
                padding: 18px 14px;
            }
        }