/* roulang page: index */
:root {
            --bg: #F5F2EA;
            --card-bg: #FFFFFF;
            --alt-bg: #EBE7DB;
            --primary: #173F2E;
            --accent: #C8F04A;
            --text: #1C241F;
            --muted: #6A756D;
            --border: #D6D0C2;
            --footer-bg: #0B2E20;
            --radius: 20px;
            --radius-sm: 14px;
            --radius-btn: 999px;
            --shadow-sm: 0 1px 2px rgba(23, 63, 46, 0.03);
            --shadow-hover: 0 16px 40px rgba(23, 63, 46, 0.10);
            --font: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            color: var(--text);
            background: var(--bg);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            padding: 0 24px;
            margin: 0 auto;
        }
        .section {
            padding: 96px 0;
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 48px;
            flex-wrap: wrap;
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--primary);
        }
        .section-sub {
            font-size: 15px;
            color: var(--muted);
            margin-top: 8px;
            max-width: 560px;
            line-height: 1.7;
        }
        .section-title-light {
            color: #fff;
        }
        .section-sub-light {
            color: rgba(255, 255, 255, 0.7);
        }
        .text-primary-custom {
            color: var(--primary) !important;
        }
        .bg-white-custom {
            background: var(--card-bg) !important;
        }
        .bg-alt-custom {
            background: var(--alt-bg) !important;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            font-size: 15px;
            font-weight: 700;
            line-height: 16px;
            border-radius: var(--radius-btn);
            transition: all .25s ease;
            border: none;
        }
        .btn-primary-custom {
            background: var(--accent);
            color: var(--primary);
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4);
        }
        .btn-primary-custom:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(23, 63, 46, 0.2);
        }
        .btn-primary-custom:active {
            transform: scale(0.98);
        }
        .btn-secondary-custom {
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
        }
        .btn-secondary-custom:hover {
            background: var(--primary);
            color: #fff;
        }
        .btn-light-primary {
            background: #fff;
            color: var(--primary);
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
        }
        .btn-light-primary:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }
        .btn-outline-light-custom {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.7);
            color: #fff;
        }
        .btn-outline-light-custom:hover {
            background: #fff;
            color: var(--primary);
        }
        .btn-download svg {
            width: 16px;
            height: 16px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 6px;
        }
        .badge-accent {
            background: var(--accent);
            color: var(--primary);
        }
        .badge-dark {
            background: var(--primary);
            color: var(--accent);
            border-radius: 999px;
            font-size: 11px;
            padding: 3px 12px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            height: 72px;
            background: rgba(245, 242, 234, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            flex-wrap: nowrap;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            display: flex;
            align-items: flex-end;
            gap: 2px;
            height: 24px;
        }
        .brand-icon span {
            display: block;
            background: var(--primary);
            border-radius: 50%;
        }
        .brand-icon span:nth-child(1) {
            width: 4px;
            height: 4px;
        }
        .brand-icon span:nth-child(2) {
            width: 7px;
            height: 7px;
        }
        .brand-icon span:nth-child(3) {
            width: 10px;
            height: 10px;
        }
        .brand-icon span:nth-child(4) {
            width: 13px;
            height: 13px;
        }
        .brand-text {
            font-size: 21px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            display: inline-flex;
            align-items: center;
        }
        .brand-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            margin-left: 4px;
            box-shadow: 0 0 0 3px rgba(200, 240, 74, 0.35);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            line-height: 72px;
            transition: color .2s;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link:hover::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            width: 36px;
            height: 36px;
            background: rgba(200, 240, 74, 0.25);
            border-radius: 50%;
            z-index: -1;
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 700;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 100%;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 8px;
            z-index: 1100;
            position: relative;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all .3s;
            margin: 0 auto;
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
            background: var(--primary);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
            background: var(--primary);
        }
        .hero {
            position: relative;
            padding: 96px 0 120px;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.12;
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            display: grid;
            grid-template-columns: 58% 42%;
            gap: 48px;
            align-items: center;
        }
        .hero-badge {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .badge-version {
            background: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.02em;
        }
        .badge-platform {
            font-size: 13px;
            color: var(--muted);
            font-weight: 500;
        }
        .hero h1 {
            font-size: 56px;
            font-weight: 700;
            line-height: 1.1;
            letter-spacing: -0.02em;
            color: var(--primary);
            margin: 0 0 20px;
        }
        .hero-sub {
            font-size: 17px;
            line-height: 1.7;
            color: var(--muted);
            max-width: 520px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-right {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-orbit {
            position: absolute;
            width: 300px;
            height: 300px;
            border: 1px solid var(--border);
            border-radius: 50%;
            animation: orbit-spin 30s linear infinite;
            pointer-events: none;
        }
        .hero-orbit::after {
            content: '';
            position: absolute;
            top: -4px;
            left: 50%;
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            box-shadow: 0 0 0 4px rgba(200, 240, 74, 0.2);
        }
        @keyframes orbit-spin {
            0% {
                transform: rotate(0deg);
            }
            100% {
                transform: rotate(360deg);
            }
        }
        .hero-device {
            position: relative;
            z-index: 2;
            width: 260px;
            border-radius: 28px;
            border: 3px solid var(--primary);
            box-shadow: var(--shadow-hover);
        }
        .scroll-hint {
            position: absolute;
            bottom: 32px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            color: var(--muted);
            font-size: 12px;
        }
        .scroll-hint span {
            display: block;
            width: 1px;
            height: 32px;
            background: var(--border);
            position: relative;
            overflow: hidden;
        }
        .scroll-hint span::after {
            content: '';
            position: absolute;
            top: -4px;
            left: -3px;
            width: 7px;
            height: 7px;
            background: var(--accent);
            border-radius: 50%;
            animation: scroll-drop 2s ease-in-out infinite;
        }
        @keyframes scroll-drop {
            0% {
                transform: translateY(0);
                opacity: 1;
            }
            80% {
                transform: translateY(28px);
                opacity: 0;
            }
            100% {
                transform: translateY(28px);
                opacity: 0;
            }
        }
        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 28px;
            height: 100%;
            box-shadow: var(--shadow-sm);
            transition: all .3s;
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(200, 240, 74, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 22px;
            margin-bottom: 20px;
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 15px;
            line-height: 1.7;
            color: var(--muted);
            margin: 0;
        }
        .showcase-section {
            background: var(--card-bg);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .rating-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: var(--accent);
            font-size: 14px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 999px;
        }
        .rating-badge i {
            color: var(--accent);
            font-size: 12px;
        }
        .carousel-section .showcase-slide {
            display: flex;
            align-items: center;
            gap: 60px;
            padding: 20px 10px;
        }
        .showcase-phone {
            flex-shrink: 0;
            width: 280px;
            border-radius: 28px;
            border: 3px solid var(--primary);
            overflow: hidden;
            background: var(--primary);
            box-shadow: var(--shadow-hover);
        }
        .showcase-phone img {
            width: 100%;
            aspect-ratio: 3/4;
            object-fit: cover;
        }
        .showcase-text h3 {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .showcase-text p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--muted);
            max-width: 420px;
        }
        .carousel-control-prev,
        .carousel-control-next {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #fff !important;
            border: 1px solid var(--border);
            color: var(--primary);
            top: 50%;
            transform: translateY(-50%);
            bottom: auto;
            opacity: 1;
            font-size: 18px;
            transition: all .25s;
        }
        .carousel-control-prev:hover,
        .carousel-control-next:hover {
            background: var(--accent) !important;
            color: var(--primary);
            border-color: var(--accent);
        }
        .carousel-control-prev {
            left: -10px;
        }
        .carousel-control-next {
            right: -10px;
        }
        .carousel-section .carousel-indicators {
            position: static;
            margin: 32px 0 0;
            display: flex;
            justify-content: center;
            gap: 8px;
        }
        .carousel-section .carousel-indicators [data-bs-target] {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--border);
            border: none;
            transition: all .3s;
            opacity: 1;
        }
        .carousel-section .carousel-indicators .active {
            width: 24px;
            height: 8px;
            border-radius: 999px;
            background: var(--accent);
        }
        .steps-wrap {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .step-item {
            position: relative;
            padding: 32px 20px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            background: var(--card-bg);
            transition: transform .3s, box-shadow .3s;
        }
        .step-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .step-num {
            font-size: 48px;
            font-weight: 700;
            color: transparent;
            -webkit-text-stroke: 1px var(--accent);
            position: absolute;
            top: 20px;
            right: 20px;
            line-height: 1;
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
            margin-top: 20px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin: 0;
        }
        .step-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .requirements-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .req-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .req-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: box-shadow .3s, transform .3s;
        }
        .req-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .req-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
            flex-shrink: 0;
        }
        .req-info h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 2px;
        }
        .req-info p {
            font-size: 13px;
            color: var(--muted);
            margin: 0;
        }
        .requirements-intro h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .requirements-intro p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--muted);
            margin-bottom: 20px;
        }
        .data-point {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 6px 18px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
        }
        .data-point i {
            color: var(--accent);
        }
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px;
            display: flex;
            flex-direction: column;
            gap: 20px;
            transition: transform .3s, box-shadow .3s;
        }
        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .testimonial-card.focus-card {
            transform: scale(1.02);
            box-shadow: var(--shadow-hover);
        }
        .testimonial-card.focus-card:hover {
            transform: scale(1.02) translateY(-4px);
        }
        .testimonial-stars {
            display: flex;
            gap: 4px;
            color: var(--accent);
            font-size: 16px;
        }
        .testimonial-text {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text);
            flex-grow: 1;
        }
        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }
        .user-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            background: var(--primary);
        }
        .user-avatar.avatar-2 {
            background: #B8875E;
        }
        .user-avatar.avatar-3 {
            background: #7A9DB1;
        }
        .user-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
        }
        .user-duration {
            font-size: 13px;
            color: var(--muted);
        }
        .faq-section {
            background: var(--card-bg);
            border-top: 1px solid var(--border);
        }
        .faq-layout {
            display: grid;
            grid-template-columns: 240px 1fr;
            gap: 60px;
        }
        .faq-side h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.2;
        }
        .faq-side p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }
        .custom-accordion .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 16px !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow .3s;
        }
        .custom-accordion .accordion-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .custom-accordion .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            background: var(--card-bg);
            box-shadow: none;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 12px;
            border-radius: 16px !important;
            position: relative;
        }
        .custom-accordion .accordion-button::after {
            content: '+';
            background: none;
            width: auto;
            height: auto;
            font-size: 22px;
            font-weight: 400;
            margin-left: auto;
            color: var(--primary);
            transition: transform .3s;
        }
        .custom-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
        }
        .custom-accordion .accordion-button:not(.collapsed) {
            background: rgba(200, 240, 74, 0.08);
            border-left: 3px solid var(--accent);
            border-radius: 16px 16px 0 0 !important;
        }
        .custom-accordion .accordion-body {
            font-size: 15px;
            line-height: 1.7;
            color: var(--text);
            padding: 0 24px 20px;
        }
        .news-section {
            background: var(--bg);
        }
        .news-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: transform .3s, box-shadow .3s;
            box-shadow: var(--shadow-sm);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .news-img {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--alt-bg);
        }
        .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease, filter .3s;
        }
        .news-card:hover .news-img img {
            transform: scale(1.03);
            filter: brightness(1.05);
        }
        .news-badge {
            position: absolute;
            bottom: 10px;
            left: 10px;
            background: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 6px;
            z-index: 2;
        }
        .news-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
            gap: 10px;
        }
        .news-body h3 {
            font-size: 20px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text);
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 56px;
        }
        .news-body h3 a:hover {
            color: var(--primary);
        }
        .news-body p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--muted);
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border);
            padding-top: 14px;
            margin-top: auto;
            font-size: 13px;
            color: var(--muted);
        }
        .news-meta a {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap .2s;
        }
        .news-meta a:hover {
            gap: 8px;
        }
        .news-empty {
            background: var(--card-bg);
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            padding: 48px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 12px;
            color: var(--muted);
            font-size: 15px;
        }
        .news-empty-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 6px rgba(200, 240, 74, 0.2);
        }
        .cta-section {
            background: var(--bg);
            padding: 40px 0 96px;
        }
        .cta-box {
            background: var(--primary);
            border-radius: 40px;
            padding: 64px 48px;
            position: relative;
            overflow: hidden;
            text-align: center;
            border-bottom: 3px solid var(--accent);
        }
        .cta-box::before {
            content: '';
            position: absolute;
            width: 200px;
            height: 200px;
            border: 30px solid var(--accent);
            border-radius: 50%;
            opacity: 0.15;
            top: -60px;
            right: 8%;
            animation: pulse-ring 4s ease-in-out infinite;
            pointer-events: none;
        }
        @keyframes pulse-ring {
            0%,
            100% {
                transform: scale(1);
                opacity: 0.15;
            }
            50% {
                transform: scale(1.08);
                opacity: 0.05;
            }
        }
        .cta-box h2 {
            font-size: 34px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-box p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 480px;
            margin: 0 auto 32px;
            position: relative;
            z-index: 1;
        }
        .cta-box .hero-actions {
            justify-content: center;
            position: relative;
            z-index: 1;
        }
        .cta-copyright {
            position: absolute;
            bottom: 20px;
            right: 32px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.8);
            border-top: 2px solid var(--accent);
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 60px;
            padding: 64px 0 40px;
        }
        .footer-brand .brand {
            margin-bottom: 16px;
        }
        .footer-brand .brand-text {
            color: #fff;
        }
        .footer-brand .brand-icon span {
            background: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 260px;
            margin-bottom: 20px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            transition: all .25s;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
        }
        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-nav-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-nav-list li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: color .2s;
        }
        .footer-nav-list li a:hover {
            color: var(--accent);
        }
        .footer-contact-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }
        .footer-contact-list li {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-contact-list i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            background: var(--footer-bg);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom .container {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        @media (max-width: 1199.98px) {
            .hero h1 {
                font-size: 48px;
            }
            .hero-orbit {
                width: 240px;
                height: 240px;
            }
            .hero-device {
                width: 220px;
            }
            .showcase-phone {
                width: 240px;
            }
        }
        @media (max-width: 991.98px) {
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 0;
                right: -100%;
                width: 100%;
                height: 100vh;
                background: rgba(245, 242, 234, 0.98);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                gap: 8px;
                transition: right 0.35s ease;
                z-index: 1050;
            }
            .main-nav.open {
                right: 0;
            }
            .main-nav .nav-link {
                font-size: 18px;
                line-height: 56px;
                color: var(--primary);
            }
            .main-nav .nav-link.active::after {
                left: -30px;
                top: 50%;
                transform: translateY(-50%);
                width: 3px;
                height: 24px;
                border-radius: 4px;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 40px;
                text-align: center;
            }
            .hero-badge {
                justify-content: center;
            }
            .hero-sub {
                margin: 0 auto 28px;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-right {
                display: none;
            }
            .features-grid .col-md-6 {
                margin-bottom: 24px;
            }
            .steps-wrap {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .requirements-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .testimonial-card.focus-card {
                transform: none;
            }
            .testimonial-card.focus-card:hover {
                transform: translateY(-4px);
            }
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
                padding: 48px 0 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .cta-box {
                padding: 48px 32px;
            }
        }
        @media (max-width: 767.98px) {
            .section {
                padding: 64px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .hero {
                padding: 56px 0 80px;
            }
            .hero h1 {
                font-size: 36px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-box h2 {
                font-size: 26px;
            }
            .cta-box p {
                font-size: 14px;
            }
            .showcase-slide {
                flex-direction: column;
                gap: 24px;
                text-align: center;
                padding: 10px 0;
            }
            .showcase-text p {
                margin: 0 auto;
            }
            .carousel-control-prev,
            .carousel-control-next {
                display: none;
            }
            .req-list {
                grid-template-columns: 1fr;
            }
            .news-card {
                margin-bottom: 24px;
            }
        }
        @media (max-width: 575.98px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 56px 0;
            }
            .hero-actions .btn {
                padding: 0 20px;
            }
            .cta-box {
                padding: 40px 20px;
                border-radius: 24px;
            }
            .cta-copyright {
                position: static;
                display: block;
                margin-top: 24px;
                font-size: 11px;
            }
            .footer-bottom .container {
                flex-direction: column;
                gap: 4px;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: category1 */
:root {
  --bg: #F5F2EA;
  --card: #FFFFFF;
  --alt: #EBE7DB;
  --primary: #173F2E;
  --accent: #C8F04A;
  --text: #1C241F;
  --muted: #6A756D;
  --border: #D6D0C2;
  --footer-dark: #0B2E20;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-pill: 999px;
  --shadow-1: 0 1px 2px rgba(23,63,46,0.03);
  --shadow-2: 0 16px 40px rgba(23,63,46,0.10);
  --font: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }
.container { max-width: 1200px; padding: 0 24px; margin: 0 auto; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(245, 242, 234, 0.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-icon { display: flex; align-items: flex-end; gap: 3px; height: 20px; }
.brand-icon span { display: block; width: 4px; height: 4px; border-radius: 50%; background: var(--primary); }
.brand-icon span:nth-child(1) { width: 4px; height: 4px; }
.brand-icon span:nth-child(2) { width: 6px; height: 6px; }
.brand-icon span:nth-child(3) { width: 9px; height: 9px; }
.brand-icon span:nth-child(4) { width: 12px; height: 12px; border-radius: 2px; background: var(--accent); transform: rotate(45deg); }
.brand-text { font-size: 21px; font-weight: 800; color: var(--primary); letter-spacing: -0.02em; line-height: 1; }
.brand-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); margin-left: 2px; }
.main-nav { display: flex; align-items: center; gap: 32px; }
.nav-link { font-size: 15px; font-weight: 500; color: var(--text); position: relative; padding: 8px 2px; transition: color .2s; }
.nav-link:hover { color: var(--primary); }
.nav-link.active { font-weight: 700; color: var(--primary); }
.nav-link.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--accent); border-radius: 2px; }
.nav-toggle { display: none; }

/* Category Hero */
.cat-hero {
  background: var(--alt);
  border-bottom: 1px solid var(--border);
  padding: 64px 0 48px;
  position: relative;
  overflow: hidden;
}
.cat-hero::before {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 300px;
  height: 300px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  animation: heroSpin 56s linear infinite;
  pointer-events: none;
}
.cat-hero::after {
  content: "";
  position: absolute;
  right: 76px;
  top: 44px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(200, 240, 74, 0.28);
  animation: heroPulse 2.2s ease-in-out infinite;
  pointer-events: none;
}
@keyframes heroSpin { to { transform: rotate(360deg); } }
@keyframes heroPulse {
  0%, 100% { transform: scale(1); opacity: .7; }
  50% { transform: scale(1.35); opacity: 1; }
}
.breadcrumb-nav { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 8px; margin-bottom: 20px; position: relative; z-index: 1; }
.breadcrumb-nav a { color: var(--muted); transition: color .2s; }
.breadcrumb-nav a:hover { color: var(--primary); }
.breadcrumb-nav i { font-size: 10px; color: var(--border); }
.breadcrumb-nav span { color: var(--text); font-weight: 600; }
.cat-hero h1 {
  font-size: 52px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--primary);
  position: relative;
  z-index: 1;
}
.cat-hero-lead {
  font-size: 17px;
  color: var(--muted);
  max-width: 680px;
  margin-top: 16px;
  position: relative;
  z-index: 1;
}
.cat-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
  position: relative;
  z-index: 1;
}
.meta-tag {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 999px;
}

/* Category Layout */
.category-layout {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  padding: 56px 0 96px;
}
.cat-sidebar {
  flex: 0 0 28%;
  max-width: 28%;
  position: sticky;
  top: 100px;
  background: var(--alt);
  border-radius: 20px;
  padding: 24px;
}
.sidebar-title {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
}
.anchor-list { list-style: none; display: flex; flex-direction: column; gap: 4px; }
.anchor-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 12px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  transition: background .2s, color .2s;
}
.anchor-list a .anchor-num {
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  min-width: 24px;
}
.anchor-list a:hover { background: rgba(200, 240, 74, 0.28); color: var(--primary); }
.anchor-list a.active { background: var(--primary); color: #fff; }
.anchor-list a.active .anchor-num { color: var(--accent); }

/* Main Content */
.cat-main { flex: 1; min-width: 0; }
.sec-block {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px;
  margin-bottom: 32px;
  position: relative;
  box-shadow: var(--shadow-1);
}
.sec-head { display: flex; align-items: center; gap: 14px; margin-bottom: 24px; }
.sec-no {
  font-size: 13px;
  font-weight: 800;
  color: var(--primary);
  background: var(--accent);
  border-radius: 6px;
  padding: 4px 10px;
  letter-spacing: 0.03em;
  line-height: 1.4;
}
.sec-head h2 { font-size: 26px; font-weight: 700; color: var(--primary); line-height: 1.2; margin: 0; }
.sec-lead { color: var(--muted); font-size: 15px; margin: -10px 0 24px; }

.content-split {
  display: flex;
  align-items: center;
  gap: 32px;
}
.content-text { flex: 1.15; }
.content-text p { font-size: 15px; line-height: 1.85; color: var(--text); margin-bottom: 16px; }
.content-text p:last-child { margin-bottom: 0; }
.content-media { flex: 0 0 44%; }
.content-media img {
  width: 100%;
  border-radius: 14px;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow-1);
}

/* Value Cards */
.value-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.value-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  transition: transform .25s, box-shadow .25s, background .25s;
}
.value-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); background: var(--card); }
.value-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(200, 240, 74, 0.32);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 18px;
  margin-bottom: 14px;
}
.value-card h3 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.value-card p { font-size: 14px; color: var(--muted); line-height: 1.65; margin: 0; }

/* Audience Cards */
.audience-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.audience-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--card);
  transition: transform .25s, box-shadow .25s;
}
.audience-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); }
.audience-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.audience-card h3 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 4px; }
.audience-card p { font-size: 14px; color: var(--muted); margin: 0; line-height: 1.6; }

/* Steps */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.step-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  transition: transform .25s, box-shadow .25s;
}
.step-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); background: var(--card); }
.step-num {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  background: var(--accent);
  display: inline-block;
  width: 38px;
  height: 38px;
  line-height: 38px;
  text-align: center;
  border-radius: 50%;
  margin-bottom: 14px;
}
.step-card h3 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.step-card p { font-size: 14px; color: var(--muted); line-height: 1.6; margin: 0; }

/* Plan List */
.plan-list { display: flex; flex-direction: column; gap: 10px; }
.plan-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 18px;
  transition: border-color .2s, transform .2s;
}
.plan-item:hover { border-color: var(--primary); transform: translateX(4px); }
.plan-day { font-weight: 700; color: var(--primary); min-width: 52px; font-size: 15px; }
.plan-info { flex: 1; font-size: 14px; color: var(--text); }
.plan-bpm {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  padding: 4px 14px;
  white-space: nowrap;
}
.plan-note {
  margin-top: 18px;
  font-size: 13px;
  color: var(--muted);
  border-left: 3px solid var(--accent);
  background: var(--bg);
  padding: 12px 16px;
  border-radius: 0 12px 12px 0;
}

/* FAQ */
.faq-list { display: flex; flex-direction: column; gap: 10px; }
.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color .2s;
}
.faq-item:hover { border-color: var(--primary); }
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 16px 20px;
  background: none;
  border: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  text-align: left;
}
.faq-plus {
  display: inline-flex;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--primary);
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  transition: transform .25s;
  flex-shrink: 0;
}
.faq-item.open .faq-plus { transform: rotate(45deg); }
.faq-answer {
  display: none;
  padding: 0 20px 20px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.75;
}
.faq-item.open .faq-answer { display: block; }

/* CTA */
.cta-box {
  position: relative;
  border-radius: 20px;
  background: var(--primary);
  padding: 56px 40px;
  text-align: center;
  overflow: hidden;
  margin-top: 32px;
}
.cta-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  opacity: 0.16;
}
.cta-box::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 180px;
  height: 3px;
  background: var(--accent);
  border-radius: 3px 3px 0 0;
}
.pulse-ring {
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: var(--accent);
  opacity: .1;
  animation: ctaPulse 3.5s ease-in-out infinite;
  pointer-events: none;
}
@keyframes ctaPulse {
  0%, 100% { opacity: .07; transform: scale(1); }
  50% { opacity: .18; transform: scale(1.06); }
}
.cta-box h2 {
  color: #fff;
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}
.cta-box p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px;
  max-width: 520px;
  margin: 0 auto 28px;
  position: relative;
  z-index: 1;
}
.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* Buttons */
.btn-primary-custom {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--primary);
  font-size: 15px;
  font-weight: 700;
  border: 0;
  cursor: pointer;
  transition: all .2s;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4);
}
.btn-primary-custom:hover { background: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-2); }
.btn-primary-custom:active { transform: scale(0.98); }
.btn-outline-light-custom {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: 999px;
  background: transparent;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  cursor: pointer;
  transition: all .2s;
}
.btn-outline-light-custom:hover { background: #fff; color: var(--primary); border-color: #fff; transform: translateY(-2px); }

/* Footer */
.site-footer { background: var(--primary); border-top: 2px solid var(--accent); }
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding: 56px 0 40px;
}
.footer-brand .brand .brand-text { color: #fff; }
.footer-brand .brand .brand-icon span { background: #fff; }
.footer-brand .brand .brand-icon span:last-child { background: var(--accent); }
.footer-brand p { color: rgba(255, 255, 255, 0.65); font-size: 14px; margin-top: 16px; margin-bottom: 20px; max-width: 280px; line-height: 1.7; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  transition: background .2s, color .2s, border-color .2s;
}
.footer-social a:hover { background: var(--accent); color: var(--primary); border-color: var(--accent); }
.footer-title { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px; }
.footer-nav-list, .footer-contact-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-nav-list a, .footer-contact-list li { color: rgba(255, 255, 255, 0.65); font-size: 14px; transition: color .2s; }
.footer-nav-list a:hover { color: var(--accent); }
.footer-contact-list i { color: var(--accent); width: 20px; margin-right: 4px; }
.footer-bottom { background: var(--footer-dark); padding: 18px 0; }
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
}

/* Responsive */
@media (max-width: 991px) {
  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: none;
    border: 0;
    cursor: pointer;
    position: relative;
    z-index: 1002;
  }
  .nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--primary);
    transition: transform .3s, opacity .3s;
  }
  .main-nav {
    position: fixed;
    inset: 0;
    background: var(--bg);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 48px 40px;
    gap: 0;
    transform: translateX(100%);
    transition: transform .35s ease;
    z-index: 1001;
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav .nav-link { font-size: 18px; line-height: 56px; width: 100%; border-bottom: 1px solid var(--border); padding: 0; }
  .main-nav .nav-link.active::after { display: none; }
  .main-nav .nav-link.active { color: var(--primary); }
  .cat-hero h1 { font-size: 36px; }
  .category-layout { flex-direction: column; padding: 40px 0 64px; gap: 24px; }
  .cat-sidebar { flex: 0 0 100%; max-width: 100%; position: static; width: 100%; }
  .anchor-list { flex-direction: row; flex-wrap: wrap; gap: 8px; }
  .anchor-list a { padding: 9px 12px; }
  .anchor-list a .anchor-num { min-width: auto; }
}
@media (max-width: 767px) {
  .value-grid, .audience-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .sec-block { padding: 24px; }
  .content-split { flex-direction: column; align-items: stretch; }
  .content-media { flex: 0 0 100%; margin-top: 8px; }
  .cta-box { padding: 40px 24px; }
  .cta-box h2 { font-size: 24px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; padding: 40px 0; }
  .footer-bottom .container { flex-direction: column; align-items: center; text-align: center; }
}
@media (max-width: 520px) {
  .steps-grid { grid-template-columns: 1fr; }
  .plan-item { flex-wrap: wrap; row-gap: 6px; }
  .plan-bpm { margin-left: auto; }
  .cat-hero { padding: 48px 0 36px; }
  .cat-hero h1 { font-size: 30px; }
  .category-layout { padding-top: 24px; }
  .sec-head { flex-wrap: wrap; row-gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* roulang page: article */
/* ========== 设计变量 ========== */
        :root {
            --bg-main: #F5F2EA;
            --bg-card: #FFFFFF;
            --bg-alt: #EBE7DB;
            --primary: #173F2E;
            --accent: #C8F04A;
            --text-main: #1C241F;
            --text-muted: #6A756D;
            --border: #D6D0C2;
            --footer-bg: #0B2E20;
            --radius-card: 20px;
            --radius-img: 14px;
            --radius-btn: 999px;
            --shadow-card: 0 1px 2px rgba(23,63,46,0.03), 0 0 0 1px var(--border);
            --shadow-hover: 0 16px 40px rgba(23,63,46,0.10);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --container-w: 1200px;
            --section-space: 96px;
        }

        /* ========== Reset & Base ========== */
        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 26px;
            color: var(--text-main);
            background: var(--bg-main);
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: color .2s ease; }
        button { font-family: inherit; border: none; background: none; cursor: pointer; }
        h1, h2, h3, h4, h5, h6 { margin: 0; line-height: 1.2; }
        p { margin: 0 0 1em; }
        ul, ol { margin: 0; padding: 0; list-style: none; }
        .container { max-width: var(--container-w); padding-left: 24px; padding-right: 24px; margin: 0 auto; }

        /* ========== 公共按钮 ========== */
        .btn-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            background: var(--accent);
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.4);
            transition: all .2s ease;
            letter-spacing: 0.01em;
        }
        .btn-brand:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(23,63,46,0.18);
        }
        .btn-brand:active { transform: scale(0.98); }
        .btn-brand-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            background: transparent;
            border: 1.5px solid var(--primary);
            transition: all .2s ease;
        }
        .btn-brand-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(23,63,46,0.15);
        }
        .btn-brand-outline:active { transform: scale(0.98); }

        /* ========== 徽章 / 标签 ========== */
        .badge-cat {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            line-height: 1;
            padding: 6px 12px;
            border-radius: 6px;
            letter-spacing: 0.02em;
        }

        /* ========== 空状态 ========== */
        .empty-state {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 48px 32px;
            background: var(--bg-card);
            border: 1px dashed var(--border);
            border-radius: var(--radius-card);
            color: var(--text-muted);
            gap: 12px;
        }
        .empty-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 4px rgba(200,240,74,0.2);
        }
        .empty-state p { margin: 0; font-size: 15px; }

        /* ========== Header 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            height: 72px;
            background: rgba(245,242,234,0.86);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            position: relative;
            width: 30px;
            height: 26px;
            display: block;
        }
        .brand-icon span {
            position: absolute;
            border-radius: 50%;
            background: var(--primary);
        }
        .brand-icon span:nth-child(1) { width: 5px; height: 5px; left: 0; bottom: 0; }
        .brand-icon span:nth-child(2) { width: 8px; height: 8px; left: 9px; bottom: 3px; opacity: .7; }
        .brand-icon span:nth-child(3) { width: 11px; height: 11px; left: 18px; bottom: 6px; opacity: .8; }
        .brand-icon span:nth-child(4) { width: 7px; height: 7px; right: 0; top: 0; background: var(--accent); opacity: 1; }
        .brand-icon::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 19px;
            width: 28px;
            height: 1px;
            background: var(--primary);
            transform: rotate(-45deg);
            transform-origin: left center;
            opacity: .35;
        }
        .brand-text {
            font-size: 21px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            line-height: 1;
            white-space: nowrap;
        }
        .brand-dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
            margin-left: 3px;
            vertical-align: super;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 2px;
            line-height: 1;
            transition: color .2s ease;
            white-space: nowrap;
        }
        .nav-link:hover { color: var(--primary); }
        .nav-link:hover::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 50%;
            width: 38px;
            height: 38px;
            background: rgba(200,240,74,0.25);
            border-radius: 50%;
            transform: translate(-50%, -50%);
            z-index: -1;
            transition: transform .2s ease;
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 700;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -6px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 42px;
            height: 42px;
            padding: 8px;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: rgba(255,255,255,0.4);
            transition: background .2s ease;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: transform .25s ease, opacity .2s ease;
        }
        .nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .nav-toggle.active span:nth-child(2) { opacity: 0; }
        .nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

        /* ========== 面包屑 ========== */
        .breadcrumb-wrap {
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
            background: rgba(255,255,255,0.3);
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            line-height: 20px;
        }
        .breadcrumb-nav a {
            color: var(--text-muted);
            transition: color .2s ease;
        }
        .breadcrumb-nav a:hover { color: var(--accent); }
        .breadcrumb-nav .sep { color: var(--border); }
        .breadcrumb-nav .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ========== 文章页 ========== */
        .article-page { padding-bottom: 40px; }

        .article-hero {
            padding: 56px 0 32px;
            text-align: center;
        }
        .article-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--primary);
            max-width: 820px;
            margin: 0 auto 20px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
        }
        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            line-height: 20px;
        }
        .meta-item i { font-size: 14px; }

        .article-content {
            padding-bottom: 48px;
        }
        .article-body {
            max-width: 720px;
            margin: 0 auto;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 44px 48px 40px;
            font-size: 16px;
            line-height: 30px;
            color: var(--text-main);
            box-shadow: var(--shadow-card);
        }
        .article-body > p:first-of-type {
            font-size: 18px;
            line-height: 1.8;
            color: var(--text-main);
        }
        .article-body p { margin-bottom: 1.3em; }
        .article-body h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            margin: 1.7em 0 0.6em;
            letter-spacing: -0.01em;
        }
        .article-body h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--primary);
            margin: 1.5em 0 0.5em;
        }
        .article-body img {
            width: 100%;
            border-radius: var(--radius-img);
            margin: 24px 0;
        }
        .article-body blockquote {
            margin: 24px 0;
            background: var(--bg-alt);
            border-left: 3px solid var(--accent);
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            font-size: 15px;
            line-height: 26px;
            color: var(--text-main);
        }
        .article-body ul {
            padding-left: 1.2em;
            margin-bottom: 1.3em;
            list-style: disc;
        }
        .article-body ol {
            padding-left: 1.4em;
            margin-bottom: 1.3em;
            list-style: decimal;
        }
        .article-body li { margin-bottom: 0.5em; }
        .article-body a {
            color: var(--primary);
            border-bottom: 1px solid var(--accent);
            transition: border-color .2s ease, color .2s ease;
        }
        .article-body a:hover { border-color: var(--primary); }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 14px;
        }
        .article-body th,
        .article-body td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }
        .article-body th {
            background: var(--bg-alt);
            font-weight: 600;
            color: var(--primary);
        }

        .article-source {
            max-width: 720px;
            margin: 20px auto 0;
            padding: 16px 24px;
            background: rgba(255,255,255,0.5);
            border: 1px solid var(--border);
            border-radius: 14px;
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
            line-height: 20px;
        }

        .article-empty {
            max-width: 720px;
            margin: 0 auto;
            padding: 72px 40px;
        }
        .article-empty .btn-brand-outline { margin-top: 8px; }

        /* ========== 相关推荐 ========== */
        .related-section {
            padding: 72px 0 80px;
            background: var(--bg-alt);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .related-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 28px;
        }
        .related-head h3 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
        }
        .related-sub {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 20px;
        }

        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform .25s ease, box-shadow .25s ease;
        }
        .related-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .card-img-link { display: block; overflow: hidden; }
        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg-alt);
        }
        .card-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease, filter .3s ease;
        }
        .related-card:hover .card-img {
            transform: scale(1.04);
            filter: brightness(1.05);
        }
        .card-badge {
            position: absolute;
            left: 12px;
            bottom: 10px;
            z-index: 2;
            background: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            line-height: 1;
            padding: 6px 10px;
            border-radius: 6px;
            box-shadow: 0 2px 8px rgba(23,63,46,0.12);
        }
        .related-card .card-body {
            padding: 20px 20px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .card-title {
            font-size: 19px;
            font-weight: 600;
            line-height: 26px;
            color: var(--text-main);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-title a { color: inherit; }
        .card-title a:hover { color: var(--primary); }
        .card-desc {
            font-size: 14px;
            line-height: 22px;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
        }
        .card-footer-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            font-size: 13px;
            color: var(--text-muted);
            line-height: 20px;
        }
        .card-read-more {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .2s ease;
        }
        .card-read-more:hover { gap: 9px; }

        /* ========== 返回入口 ========== */
        .back-entry {
            padding: 48px 0 64px;
            text-align: center;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.82);
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding: 64px 0 48px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .brand {
            margin-bottom: 16px;
        }
        .footer-brand .brand-text {
            color: #fff;
        }
        .footer-brand .brand-icon span {
            background: #fff;
        }
        .footer-brand .brand-icon span:nth-child(4) {
            background: var(--accent);
        }
        .footer-brand .brand-icon::after {
            background: #fff;
            opacity: .3;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 26px;
            color: rgba(255,255,255,0.65);
            max-width: 280px;
            margin: 0 0 20px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.75);
            font-size: 16px;
            transition: all .2s ease;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-nav-list li,
        .footer-contact-list li {
            margin-bottom: 10px;
            font-size: 14px;
            line-height: 22px;
        }
        .footer-nav-list a {
            color: rgba(255,255,255,0.7);
            transition: color .2s ease;
        }
        .footer-nav-list a:hover { color: var(--accent); }
        .footer-contact-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: rgba(255,255,255,0.7);
        }
        .footer-contact-list i {
            margin-top: 5px;
            color: var(--accent);
            font-size: 14px;
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            background: var(--footer-bg);
            padding: 20px 0;
        }
        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255,255,255,0.45);
            line-height: 20px;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991px) {
            .nav-toggle { display: flex; }
            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-main);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 24px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(23,63,46,0.08);
                transform: translateY(-12px);
                opacity: 0;
                pointer-events: none;
                transition: opacity .25s ease, transform .25s ease;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-link {
                width: 100%;
                font-size: 17px;
                padding: 0;
                line-height: 52px;
                border-bottom: 1px solid var(--border);
                color: var(--text-main);
            }
            .nav-link:last-child { border-bottom: none; }
            .nav-link:hover::before { display: none; }
            .nav-link.active::after { display: none; }
            .nav-link.active {
                color: var(--primary);
                font-weight: 700;
                border-left: 3px solid var(--accent);
                padding-left: 14px;
            }
        }

        @media (max-width: 768px) {
            :root { --section-space: 64px; }
            .article-hero { padding: 40px 0 24px; }
            .article-hero h1 { font-size: 28px; }
            .article-body {
                padding: 28px 22px 26px;
                border-radius: 14px;
                font-size: 15px;
                line-height: 28px;
            }
            .article-body > p:first-of-type { font-size: 17px; }
            .article-body h2 { font-size: 20px; }
            .article-source { padding: 14px 16px; font-size: 13px; }
            .related-section { padding: 56px 0 64px; }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 36px;
                padding: 48px 0 36px;
            }
            .back-entry { padding: 40px 0 48px; }
        }

        @media (max-width: 520px) {
            .container { padding-left: 16px; padding-right: 16px; }
            .article-hero h1 { font-size: 24px; }
            .article-meta { gap: 10px; }
            .meta-item { font-size: 12px; }
            .meta-item + .meta-item::before {
                content: '';
                width: 3px;
                height: 3px;
                border-radius: 50%;
                background: var(--border);
                margin-right: 4px;
            }
            .article-body { padding: 22px 16px 20px; }
            .related-head h3 { font-size: 24px; }
            .related-card .card-body { padding: 16px; }
            .card-title { font-size: 17px; line-height: 24px; }
            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ========== 可访问性 ========== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: category2 */
:root{
    --bg-main:#F5F2EA;
    --bg-card:#FFFFFF;
    --bg-alt:#EBE7DB;
    --primary:#173F2E;
    --accent:#C8F04A;
    --text-body:#1C241F;
    --text-muted:#6A756D;
    --border-light:#D6D0C2;
    --footer-dark:#0B2E20;
    --radius-card:20px;
    --radius-img:14px;
    --radius-btn:999px;
    --shadow-card:0 1px 2px rgba(23,63,46,0.03), 0 0 0 1px #D6D0C2;
    --shadow-hover:0 16px 40px rgba(23,63,46,0.10);
    --space-block:96px;
    --font-stack:-apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*{
    box-sizing:border-box;
}
html,body{
    margin:0;
    padding:0;
}
body{
    font-family:var(--font-stack);
    background:var(--bg-main);
    color:var(--text-body);
    font-size:15px;
    line-height:26px;
    -webkit-font-smoothing:antialiased;
}
a{
    color:var(--primary);
    text-decoration:none;
    transition:color .25s ease;
}
a:hover{
    color:var(--primary);
}
img{
    max-width:100%;
    display:block;
}
button,input,select,textarea{
    font-family:inherit;
}
.container{
    max-width:1200px;
    padding-left:24px;
    padding-right:24px;
    margin:0 auto;
}
.main{
    overflow:hidden;
}
.section-block{
    padding:var(--space-block) 0;
}
@media(max-width:991px){
    :root{
        --space-block:64px;
    }
    .container{
        padding-left:20px;
        padding-right:20px;
    }
}

/* ===== Header ===== */
.site-header{
    position:relative;
    z-index:100;
    background:rgba(245,242,234,0.88);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid var(--border-light);
    height:72px;
}
.header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:72px;
}
.brand{
    display:flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
}
.brand-icon{
    display:flex;
    align-items:center;
    gap:3px;
    height:28px;
}
.brand-icon span{
    display:block;
    border-radius:50%;
    background:var(--primary);
    width:6px;height:6px;
}
.brand-icon span:nth-child(1){width:5px;height:5px;opacity:.55;}
.brand-icon span:nth-child(2){width:7px;height:7px;opacity:.7;}
.brand-icon span:nth-child(3){width:9px;height:9px;opacity:.85;}
.brand-icon span:nth-child(4){width:12px;height:12px;background:var(--accent);}
.brand-icon::after{
    content:"";
    display:block;
    width:18px;
    height:2px;
    background:var(--accent);
    transform:rotate(-28deg) translateX(3px);
    margin-left:2px;
    border-radius:2px;
}
.brand-text{
    font-size:21px;
    font-weight:800;
    color:var(--primary);
    letter-spacing:-0.01em;
    line-height:1;
    display:flex;
    align-items:center;
}
.brand-dot{
    display:inline-block;
    width:8px;height:8px;
    background:var(--accent);
    border-radius:50%;
    margin-left:4px;
}
.main-nav{
    display:flex;
    align-items:center;
    gap:32px;
}
.nav-link{
    font-size:15px;
    font-weight:500;
    color:var(--text-body);
    position:relative;
    padding:8px 2px;
    line-height:1.2;
    transition:color .2s ease;
}
.nav-link::after{
    content:"";
    position:absolute;
    bottom:0;
    left:0;
    width:0;
    height:2px;
    background:var(--accent);
    border-radius:2px;
    transition:width .25s ease;
}
.nav-link:hover{
    color:var(--primary);
    background:rgba(200,240,74,0.25);
    border-radius:999px;
    padding:6px 14px;
    margin:-2px -12px;
}
.nav-link.active{
    color:var(--primary);
    font-weight:700;
}
.nav-link.active::after{
    width:100%;
}
.nav-toggle{
    display:none;
    background:none;
    border:none;
    cursor:pointer;
    padding:8px;
    flex-direction:column;
    gap:5px;
}
.nav-toggle span{
    display:block;
    width:24px;
    height:2px;
    background:var(--primary);
    border-radius:2px;
    transition:all .3s ease;
}
.nav-toggle.nav-open span:nth-child(1){
    transform:translateY(7px) rotate(45deg);
}
.nav-toggle.nav-open span:nth-child(2){
    opacity:0;
}
.nav-toggle.nav-open span:nth-child(3){
    transform:translateY(-7px) rotate(-45deg);
}
@media(max-width:991px){
    .nav-toggle{
        display:flex;
    }
    .main-nav{
        position:fixed;
        top:72px;
        left:0;
        right:0;
        background:rgba(245,242,234,0.98);
        backdrop-filter:blur(12px);
        -webkit-backdrop-filter:blur(12px);
        flex-direction:column;
        align-items:flex-start;
        gap:0;
        padding:16px 24px 24px;
        border-bottom:1px solid var(--border-light);
        transform:translateY(-120%);
        transition:transform .35s ease;
        box-shadow:0 20px 30px rgba(23,63,46,0.08);
    }
    .main-nav.nav-open{
        transform:translateY(0);
    }
    .nav-link{
        font-size:18px;
        line-height:56px;
        display:block;
        width:100%;
        border-bottom:1px solid rgba(214,208,194,0.4);
        padding:0;
        margin:0;
        border-radius:0;
    }
    .nav-link:hover{
        background:none;
        padding:0;
        margin:0;
        border-radius:0;
    }
    .nav-link.active{
        color:var(--primary);
        font-weight:700;
        border-left:3px solid var(--accent);
        padding-left:14px;
    }
    .nav-link.active::after{
        display:none;
    }
}

/* ===== Button ===== */
.btn-led{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    background:var(--accent);
    color:var(--primary);
    font-size:15px;
    font-weight:700;
    height:48px;
    padding:0 28px;
    border-radius:var(--radius-btn);
    border:none;
    cursor:pointer;
    transition:all .25s ease;
    box-shadow:inset 0 1px 0 rgba(255,255,255,0.4);
}
.btn-led:hover{
    background:var(--primary);
    color:#fff;
    transform:translateY(-2px);
    box-shadow:0 10px 24px rgba(23,63,46,0.22);
}
.btn-led:active{
    transform:scale(0.98);
}
.btn-outline-led{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    background:transparent;
    color:var(--primary);
    font-size:15px;
    font-weight:600;
    height:48px;
    padding:0 28px;
    border-radius:var(--radius-btn);
    border:1.5px solid var(--primary);
    cursor:pointer;
    transition:all .25s ease;
}
.btn-outline-led:hover{
    background:var(--primary);
    color:#fff;
}
.btn-white-led{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    background:#fff;
    color:var(--primary);
    font-size:15px;
    font-weight:700;
    height:48px;
    padding:0 28px;
    border-radius:var(--radius-btn);
    border:none;
    cursor:pointer;
    transition:all .25s ease;
}
.btn-white-led:hover{
    background:var(--accent);
    color:var(--primary);
    transform:translateY(-2px);
    box-shadow:0 10px 24px rgba(0,0,0,0.15);
}

/* ===== Hero ===== */
.cat-hero{
    background:var(--bg-main);
    padding:96px 0 72px;
    position:relative;
    border-bottom:1px solid var(--border-light);
}
.cat-hero::before{
    content:"";
    position:absolute;
    top:0;
    right:0;
    width:480px;
    height:320px;
    background-image:radial-gradient(circle at 70% 40%, rgba(200,240,74,0.14) 0%, transparent 60%);
    pointer-events:none;
}
.cat-hero .container{
    display:flex;
    gap:48px;
    align-items:flex-start;
    position:relative;
    z-index:2;
}
.cat-hero-left{
    flex:0 0 34%;
    min-width:240px;
}
.cat-hero-right{
    flex:1;
}
.cat-hero-badge{
    display:inline-flex;
    align-items:center;
    gap:10px;
    background:#fff;
    border:1px solid var(--border-light);
    border-radius:999px;
    padding:6px 16px;
    font-size:13px;
    font-weight:600;
    color:var(--primary);
    margin-bottom:20px;
}
.cat-hero-badge::before{
    content:"";
    display:inline-block;
    width:10px;height:10px;
    background:var(--accent);
    border-radius:50%;
    box-shadow:0 0 0 3px rgba(200,240,74,0.25);
}
.cat-hero h1{
    font-size:56px;
    font-weight:700;
    line-height:1.1;
    letter-spacing:-0.02em;
    color:var(--primary);
    margin:0 0 18px;
}
.cat-hero .cat-sub{
    font-size:17px;
    line-height:28px;
    color:var(--text-muted);
    max-width:560px;
    margin-bottom:28px;
}
.cat-hero-actions{
    display:flex;
    gap:14px;
    flex-wrap:wrap;
}
.cat-hero-actions .btn-led i,
.cat-hero-actions .btn-outline-led i{
    font-size:14px;
}
@media(max-width:991px){
    .cat-hero{
        padding:64px 0 56px;
    }
    .cat-hero .container{
        flex-direction:column;
        gap:24px;
    }
    .cat-hero-left{
        flex:none;
        width:100%;
    }
    .cat-hero h1{
        font-size:36px;
    }
}

/* ===== Anchor Sidebar Layout (Category 1) ===== */
.cat-guide-wrap{
    padding:72px 0 96px;
}
.guide-layout{
    display:flex;
    gap:40px;
    align-items:flex-start;
}
.guide-sidebar{
    flex:0 0 28%;
    max-width:28%;
    background:var(--bg-alt);
    border-radius:20px;
    padding:28px 22px;
    position:sticky;
    top:100px;
    margin-top:12px;
}
.guide-sidebar-title{
    font-size:15px;
    font-weight:700;
    color:var(--primary);
    margin:0 0 16px;
    padding-bottom:12px;
    border-bottom:1px solid var(--border-light);
    letter-spacing:0.02em;
}
.guide-anchor-list{
    list-style:none;
    margin:0;
    padding:0;
}
.guide-anchor-list li{
    display:flex;
    align-items:baseline;
    gap:12px;
    padding:10px 6px;
    border-radius:10px;
    transition:background .2s ease;
}
.guide-anchor-list li:hover{
    background:rgba(255,255,255,0.6);
}
.guide-anchor-list li a{
    font-size:15px;
    font-weight:500;
    color:var(--text-body);
    line-height:1.4;
    transition:color .2s;
}
.guide-anchor-list li a:hover{
    color:var(--primary);
}
.guide-anchor-list li.active a{
    color:var(--primary);
    font-weight:700;
}
.guide-anchor-num{
    font-size:13px;
    font-weight:700;
    color:var(--accent);
    font-variant-numeric:tabular-nums;
    background:var(--primary);
    border-radius:6px;
    min-width:30px;
    text-align:center;
    padding:2px 8px;
    line-height:20px;
}
.guide-main{
    flex:1;
    background:#fff;
    border-radius:20px;
    border:1px solid var(--border-light);
    padding:48px;
}
.guide-main h2{
    font-size:28px;
    font-weight:700;
    color:var(--primary);
    line-height:1.2;
    margin:0 0 16px;
}
.guide-main p{
    margin:0 0 20px;
}
.guide-main .guide-text-lead{
    font-size:16px;
    color:var(--text-body);
}
.guide-main .guide-img{
    border-radius:14px;
    margin:32px 0;
    width:100%;
    height:auto;
    object-fit:cover;
    aspect-ratio:16/10;
}
.guide-note{
    background:var(--bg-alt);
    border-left:3px solid var(--accent);
    border-radius:0 14px 14px 0;
    padding:20px 24px;
    margin:28px 0;
    font-size:15px;
    line-height:26px;
    color:var(--text-body);
}
@media(max-width:991px){
    .guide-layout{
        flex-direction:column;
        gap:24px;
    }
    .guide-sidebar{
        flex:none;
        max-width:100%;
        width:100%;
        position:static;
        padding:20px;
    }
    .guide-anchor-list{
        display:flex;
        flex-wrap:wrap;
        gap:8px;
    }
    .guide-anchor-list li{
        padding:4px 8px;
        border-radius:8px;
        background:#fff;
    }
    .guide-anchor-num{
        min-width:24px;
        font-size:12px;
        padding:1px 6px;
    }
    .guide-main{
        padding:24px;
    }
    .guide-main h2{
        font-size:22px;
    }
}

/* ===== Section: Metrics ===== */
.metrics-section{
    background:var(--bg-main);
    padding:72px 0;
}
.metrics-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:24px;
}
.metric-item{
    background:#fff;
    border:1px solid var(--border-light);
    border-radius:20px;
    padding:28px 24px;
    text-align:center;
    transition:box-shadow .25s ease, transform .25s ease;
}
.metric-item:hover{
    box-shadow:var(--shadow-hover);
    transform:translateY(-3px);
}
.metric-num{
    font-size:42px;
    font-weight:800;
    color:var(--primary);
    line-height:1.1;
    letter-spacing:-0.03em;
    margin-bottom:8px;
}
.metric-num span{
    color:var(--accent);
    font-size:28px;
    vertical-align:super;
    margin-left:2px;
}
.metric-label{
    font-size:14px;
    color:var(--text-muted);
    font-weight:500;
}
@media(max-width:991px){
    .metrics-grid{
        grid-template-columns:repeat(2,1fr);
        gap:16px;
    }
}
@media(max-width:520px){
    .metrics-grid{
        grid-template-columns:1fr 1fr;
    }
    .metric-num{
        font-size:32px;
    }
}

/* ===== Section: Scenes ===== */
.scenes-section{
    background:var(--bg-main);
    padding-bottom:96px;
}
.scenes-header{
    text-align:center;
    margin-bottom:52px;
}
.scenes-header h2{
    font-size:34px;
    font-weight:700;
    color:var(--primary);
    letter-spacing:-0.02em;
    margin-bottom:12px;
}
.scenes-header p{
    font-size:16px;
    color:var(--text-muted);
    max-width:600px;
    margin:0 auto;
}
.scenes-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:24px;
}
.scene-card{
    background:#fff;
    border:1px solid var(--border-light);
    border-radius:20px;
    padding:16px 16px 28px;
    transition:box-shadow .25s ease, transform .25s ease;
}
.scene-card:hover{
    box-shadow:var(--shadow-hover);
    transform:translateY(-3px);
}
.scene-card-img{
    border-radius:14px;
    overflow:hidden;
    aspect-ratio:16/9;
    margin-bottom:16px;
}
.scene-card-img img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .4s ease;
}
.scene-card:hover .scene-card-img img{
    transform:scale(1.03);
}
.scene-card h3{
    font-size:20px;
    font-weight:600;
    color:var(--primary);
    margin:0 0 10px;
    padding:0 8px;
}
.scene-card p{
    font-size:14px;
    color:var(--text-muted);
    line-height:24px;
    margin:0;
    padding:0 8px;
}
.scene-card .scene-tag{
    display:inline-block;
    background:var(--accent);
    color:var(--primary);
    font-size:12px;
    font-weight:600;
    border-radius:6px;
    padding:4px 10px;
    margin:0 0 10px 8px;
}
@media(max-width:991px){
    .scenes-grid{
        grid-template-columns:repeat(2,1fr);
        gap:16px;
    }
    .scenes-header h2{
        font-size:26px;
    }
}
@media(max-width:576px){
    .scenes-grid{
        grid-template-columns:1fr;
    }
}

/* ===== Section: Flow / Steps ===== */
.flow-section{
    background:var(--bg-alt);
    padding:80px 0;
}
.flow-header{
    text-align:center;
    margin-bottom:52px;
}
.flow-header h2{
    font-size:34px;
    font-weight:700;
    color:var(--primary);
    letter-spacing:-0.02em;
    margin-bottom:12px;
}
.flow-header p{
    font-size:16px;
    color:var(--text-muted);
    max-width:560px;
    margin:0 auto;
}
.flow-steps{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:24px;
    max-width:960px;
    margin:0 auto;
}
.flow-step{
    background:#fff;
    border:1px solid var(--border-light);
    border-radius:20px;
    padding:32px 28px;
    position:relative;
    transition:box-shadow .25s ease, transform .25s ease;
}
.flow-step:hover{
    box-shadow:var(--shadow-hover);
    transform:translateY(-3px);
}
.flow-num{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:36px;
    height:36px;
    background:var(--accent);
    color:var(--primary);
    border-radius:12px;
    font-weight:800;
    font-size:16px;
    margin-bottom:16px;
}
.flow-step h3{
    font-size:20px;
    font-weight:600;
    color:var(--primary);
    margin:0 0 10px;
}
.flow-step p{
    font-size:14px;
    color:var(--text-muted);
    line-height:24px;
    margin:0;
}
@media(max-width:991px){
    .flow-steps{
        grid-template-columns:1fr;
        max-width:520px;
    }
    .flow-header h2{
        font-size:26px;
    }
}

/* ===== Section: FAQ ===== */
.faq-section{
    background:var(--bg-main);
    padding:96px 0 80px;
}
.faq-layout{
    display:flex;
    gap:48px;
    align-items:flex-start;
}
.faq-side{
    flex:0 0 30%;
}
.faq-side h2{
    font-size:34px;
    font-weight:700;
    color:var(--primary);
    letter-spacing:-0.02em;
    line-height:1.2;
    margin:0 0 14px;
}
.faq-side p{
    font-size:15px;
    color:var(--text-muted);
    line-height:26px;
}
.faq-list-wrap{
    flex:1;
}
.faq-item{
    background:#fff;
    border:1px solid var(--border-light);
    border-radius:16px;
    margin-bottom:12px;
    transition:box-shadow .25s ease;
}
.faq-item:hover{
    box-shadow:0 6px 20px rgba(23,63,46,0.06);
}
.faq-item.open{
    box-shadow:var(--shadow-hover);
    border-color:var(--primary);
}
.faq-q{
    display:flex;
    align-items:center;
    justify-content:space-between;
    width:100%;
    text-align:left;
    background:none;
    border:none;
    padding:20px 24px;
    font-size:16px;
    font-weight:600;
    color:var(--primary);
    cursor:pointer;
    gap:16px;
    border-radius:16px;
    transition:color .2s;
}
.faq-q:hover{
    color:var(--primary);
}
.faq-q .icon-plus{
    flex-shrink:0;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:26px;
    height:26px;
    border-radius:50%;
    background:var(--bg-alt);
    color:var(--primary);
    font-size:18px;
    font-weight:400;
    transition:transform .3s ease;
}
.faq-item.open .faq-q .icon-plus{
    transform:rotate(45deg);
}
.faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .3s ease;
}
.faq-a-inner{
    padding:0 24px 20px;
    font-size:15px;
    line-height:26px;
    color:var(--text-body);
    border-left:3px solid var(--accent);
    margin:0 24px 0 24px;
    padding:0 0 20px 8px;
}
.faq-item.open .faq-q{
    border-bottom:none;
}
@media(max-width:991px){
    .faq-layout{
        flex-direction:column;
        gap:32px;
    }
    .faq-side{
        flex:none;
        width:100%;
    }
    .faq-side h2{
        font-size:26px;
    }
}

/* ===== Section: CTA ===== */
.cta-banner{
    background:var(--primary);
    border-radius:40px;
    padding:72px 48px;
    text-align:center;
    color:#fff;
    position:relative;
    overflow:hidden;
    margin-bottom:96px;
    border-bottom:4px solid var(--accent);
}
.cta-banner::before{
    content:"";
    position:absolute;
    top:-60px;
    right:-40px;
    width:220px;
    height:220px;
    border-radius:50%;
    background:rgba(200,240,74,0.18);
    animation:pulse-ring 3s ease-in-out infinite;
}
.cta-banner::after{
    content:"";
    position:absolute;
    bottom:-80px;
    left:10%;
    width:180px;
    height:180px;
    border-radius:50%;
    background:rgba(200,240,74,0.10);
}
@keyframes pulse-ring{
    0%,100%{opacity:0.2;transform:scale(0.9);}
    50%{opacity:0.05;transform:scale(1.05);}
}
.cta-banner h2{
    font-size:34px;
    font-weight:700;
    color:#fff;
    letter-spacing:-0.02em;
    margin-bottom:12px;
    position:relative;
    z-index:2;
}
.cta-banner p{
    font-size:16px;
    color:rgba(255,255,255,0.75);
    margin-bottom:32px;
    position:relative;
    z-index:2;
}
.cta-actions{
    display:flex;
    gap:16px;
    justify-content:center;
    flex-wrap:wrap;
    position:relative;
    z-index:2;
}
.cta-note{
    margin-top:24px;
    font-size:13px;
    color:rgba(255,255,255,0.5);
}
@media(max-width:991px){
    .cta-banner{
        padding:48px 24px;
        margin-bottom:64px;
        border-radius:24px;
    }
    .cta-banner h2{
        font-size:24px;
    }
}

/* ===== Footer ===== */
.site-footer{
    background:var(--primary);
    border-top:2px solid var(--accent);
}
.footer-top{
    display:grid;
    grid-template-columns:1.4fr 1fr 1.2fr;
    gap:48px;
    padding:72px 0 48px;
}
.footer-brand .brand-text{
    color:#fff;
}
.footer-brand p{
    font-size:14px;
    line-height:24px;
    color:rgba(255,255,255,0.7);
    margin:18px 0 20px;
    max-width:320px;
}
.footer-social{
    display:flex;
    gap:12px;
}
.footer-social a{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:38px;
    height:38px;
    border-radius:50%;
    border:1px solid rgba(255,255,255,0.25);
    color:#fff;
    font-size:16px;
    transition:all .25s ease;
}
.footer-social a:hover{
    background:var(--accent);
    color:var(--primary);
    border-color:var(--accent);
}
.footer-title{
    font-size:15px;
    font-weight:700;
    color:#fff;
    margin-bottom:18px;
    letter-spacing:0.03em;
}
.footer-nav-list{
    list-style:none;
    padding:0;
    margin:0;
}
.footer-nav-list li{
    margin-bottom:10px;
}
.footer-nav-list a{
    color:rgba(255,255,255,0.6);
    font-size:14px;
    transition:color .2s;
}
.footer-nav-list a:hover{
    color:var(--accent);
}
.footer-contact-list{
    list-style:none;
    padding:0;
    margin:0;
}
.footer-contact-list li{
    color:rgba(255,255,255,0.6);
    font-size:14px;
    margin-bottom:12px;
    display:flex;
    align-items:center;
    gap:10px;
}
.footer-contact-list i{
    color:var(--accent);
    width:18px;
    text-align:center;
}
.footer-bottom{
    background:var(--footer-dark);
    padding:18px 0;
}
.footer-bottom .container{
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:12px;
    flex-wrap:wrap;
}
.footer-bottom span{
    font-size:13px;
    color:rgba(255,255,255,0.42);
}
@media(max-width:991px){
    .footer-top{
        grid-template-columns:1fr;
        gap:40px;
        padding:56px 0 40px;
    }
    .footer-bottom .container{
        justify-content:center;
        text-align:center;
    }
}

/* ===== Reduced Motion ===== */
@media(prefers-reduced-motion:reduce){
    *{
        animation-duration:0.01ms !important;
        transition-duration:0.01ms !important;
    }
    .cta-banner::before,
    .cta-banner::after{
        animation:none;
    }
}

/* ===== Additional spacing ===== */
.section-more-space{
    padding-top:16px;
    padding-bottom:72px;
}
h1,h2,h3,h4,h5,h6{
    font-family:var(--font-stack);
}

/* roulang page: category3 */
:root {
            --bg-main: #F5F2EA;
            --bg-card: #FFFFFF;
            --bg-alt: #EBE7DB;
            --primary: #173F2E;
            --primary-dark: #0B2E20;
            --accent: #C8F04A;
            --text-main: #1C241F;
            --text-sub: #6A756D;
            --border: #D6D0C2;
            --footer-deep: #0B2E20;
            --radius-card: 20px;
            --radius-img: 14px;
            --radius-badge: 6px;
            --radius-btn: 999px;
            --shadow-card: 0 1px 2px rgba(23, 63, 46, 0.03);
            --shadow-hover: 0 16px 40px rgba(23, 63, 46, 0.10);
            --container-max: 1200px;
            --space-section: 96px;
            --space-mobile: 64px;
            --font-stack: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        body {
            font-family: var(--font-stack);
            background: var(--bg-main);
            color: var(--text-main);
            font-size: 15px;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
        }
        a:hover {
            color: var(--primary);
        }

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

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

        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
            width: 100%;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            height: 72px;
            background: rgba(245, 242, 234, 0.88);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

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

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .brand-icon {
            display: inline-flex;
            align-items: flex-end;
            gap: 3px;
            height: 24px;
        }

        .brand-icon span {
            width: 5px;
            background: var(--primary);
            border-radius: 3px;
            display: block;
        }
        .brand-icon span:nth-child(1) {
            height: 6px;
        }
        .brand-icon span:nth-child(2) {
            height: 11px;
        }
        .brand-icon span:nth-child(3) {
            height: 16px;
        }
        .brand-icon span:nth-child(4) {
            height: 24px;
            background: var(--accent);
            transform: skewX(-12deg);
            margin-left: 3px;
        }

        .brand-text {
            font-size: 21px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1;
        }

        .brand-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            margin-left: 3px;
            vertical-align: baseline;
        }

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

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            position: relative;
            padding: 8px 2px;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(200, 240, 74, 0.25);
            border-radius: 8px;
            padding-left: 8px;
            padding-right: 8px;
            margin-left: -6px;
            margin-right: -6px;
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 700;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
        }

        .nav-toggle span {
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: transform .3s, opacity .3s;
        }

        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero ===== */
        .page-hero {
            padding: 64px 0 48px;
            position: relative;
            background: var(--bg-main);
        }

        .hero-top-line {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .hero-top-line h1 {
            font-size: 56px;
            font-weight: 700;
            line-height: 1.1;
            letter-spacing: -0.02em;
            color: var(--primary);
            margin: 0;
        }

        .hero-total {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-sub);
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 6px 18px;
            white-space: nowrap;
        }

        .hero-bottom {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.7;
            color: var(--text-sub);
            max-width: 580px;
            margin: 0;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 700;
            border: 1.5px solid transparent;
            cursor: pointer;
            transition: all .2s ease;
            text-decoration: none;
            line-height: 1;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4), 0 4px 12px rgba(200, 240, 74, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(23, 63, 46, 0.18);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: scale(0.98);
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
        }

        .btn-white:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .hero-decor {
            position: absolute;
            right: -80px;
            top: 20px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            border: 1px solid rgba(23, 63, 46, 0.12);
            animation: spin 30s linear infinite;
            pointer-events: none;
            z-index: 0;
        }

        .hero-decor::before {
            content: '';
            position: absolute;
            top: 18px;
            left: 50%;
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            box-shadow: 0 0 0 6px rgba(200, 240, 74, 0.25);
        }

        @keyframes spin {
            from {
                transform: rotate(0deg);
            }
            to {
                transform: rotate(360deg);
            }
        }

        /* ===== 计划瀑布卡片 ===== */
        .plan-section {
            padding: 64px 0 var(--space-section);
            background: var(--bg-main);
        }

        .plan-section .section-head {
            margin-bottom: 40px;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin: 0;
        }

        .section-head .section-more {
            font-size: 14px;
            color: var(--text-sub);
            font-weight: 500;
        }

        .plan-card {
            display: flex;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            min-height: 260px;
            box-shadow: var(--shadow-card);
            transition: transform .3s ease, box-shadow .3s ease;
            margin-bottom: 24px;
        }

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

        .plan-card-img {
            width: 50%;
            flex-shrink: 0;
            overflow: hidden;
            position: relative;
        }

        .plan-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease, filter .3s ease;
        }

        .plan-card:hover .plan-card-img img {
            transform: scale(1.03);
            filter: brightness(1.05);
        }

        .plan-card-body {
            padding: 28px 26px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            flex: 1;
        }

        .plan-card-tag {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-badge);
            padding: 4px 10px;
            margin-bottom: 14px;
            align-self: flex-start;
        }

        .plan-card-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .plan-card-text {
            font-size: 14px;
            line-height: 1.65;
            color: var(--text-sub);
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .plan-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: auto;
        }

        .plan-card-link i {
            transition: transform .2s ease;
        }

        .plan-card:hover .plan-card-link i {
            transform: translateX(4px);
        }

        /* ===== 卖点数据 ===== */
        .feature-stats {
            background: var(--bg-card);
            padding: 72px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .feature-stats .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .stat-item {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-main);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
        }

        .stat-num {
            font-size: 44px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            letter-spacing: -0.02em;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-sub);
            margin-top: 10px;
            font-weight: 500;
        }

        /* ===== 适用场景 ===== */
        .scenario-section {
            padding: var(--space-section) 0;
            background: var(--bg-main);
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .scenario-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            transition: transform .3s ease, box-shadow .3s ease;
        }

        .scenario-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

        .scenario-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(200, 240, 74, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .scenario-item h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .scenario-item p {
            font-size: 14px;
            line-height: 1.65;
            color: var(--text-sub);
            margin: 0;
        }

        /* ===== 流程 ===== */
        .process-section {
            padding: var(--space-section) 0;
            background: var(--bg-alt);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            counter-reset: step;
        }

        .process-step {
            position: relative;
            background: var(--bg-card);
            border-radius: var(--radius-card);
            padding: 36px 28px;
            border: 1px solid var(--border);
            counter-increment: step;
        }

        .process-step::before {
            content: "0" counter(step);
            font-size: 32px;
            font-weight: 700;
            color: var(--accent);
            display: block;
            margin-bottom: 16px;
            line-height: 1;
        }

        .process-step h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--primary);
        }

        .process-step p {
            font-size: 14px;
            line-height: 1.65;
            color: var(--text-sub);
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--space-section) 0;
            background: var(--bg-main);
        }

        .faq-section h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .faq-subtitle {
            font-size: 15px;
            color: var(--text-sub);
            margin-bottom: 40px;
        }

        .faq-list {
            max-width: 880px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
            transition: box-shadow .3s ease;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }

        .faq-item summary {
            padding: 22px 26px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            gap: 14px;
            position: relative;
            outline: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::before {
            content: '+';
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            transition: transform .3s ease;
            width: 22px;
            text-align: center;
            flex-shrink: 0;
        }

        .faq-item[open] summary::before {
            transform: rotate(45deg);
            color: var(--accent);
        }

        .faq-item[open] summary {
            border-left: 3px solid var(--accent);
        }

        .faq-answer {
            padding: 0 26px 22px 62px;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-sub);
        }

        /* ===== CTA 横幅 ===== */
        .cta-banner {
            padding: var(--space-section) 0;
            background: var(--bg-main);
        }

        .cta-inner {
            background: var(--primary);
            border-radius: 40px;
            padding: 64px 48px 56px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-inner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            border: 2px solid rgba(200, 240, 74, 0.35);
            animation: breathe 4s ease-in-out infinite;
        }

        .cta-inner::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            border: 2px solid rgba(200, 240, 74, 0.18);
            animation: breathe 6s ease-in-out infinite reverse;
        }

        @keyframes breathe {
            0%,
            100% {
                opacity: 0.25;
                transform: scale(1);
            }
            50% {
                opacity: 0.08;
                transform: scale(1.1);
            }
        }

        .cta-inner h2 {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 32px;
            position: relative;
            z-index: 1;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .cta-bottom-line {
            width: 90%;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            margin: 40px auto 0;
            position: relative;
            z-index: 1;
        }

        .cta-copyright {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            margin-top: 16px;
            position: relative;
            z-index: 1;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.8);
            border-top: 2px solid var(--accent);
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1.4fr;
            gap: 48px;
            padding: 64px 0 48px;
        }

        .footer-brand .brand {
            margin-bottom: 16px;
        }

        .footer-brand .brand-text {
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 20px;
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 14px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            transition: all .25s ease;
        }

        .footer-social a:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }

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

        .footer-nav-list a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color .2s ease, padding-left .2s ease;
        }

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

        .footer-contact-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .footer-contact-list li {
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.65);
        }

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

        .footer-bottom {
            background: var(--footer-deep);
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199.98px) {
            .hero-decor {
                right: -160px;
            }
        }

        @media (max-width: 991.98px) {
            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-main);
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 32px 32px;
                gap: 0;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 24px 40px rgba(23, 63, 46, 0.08);
                transform: translateY(-120%);
                transition: transform .35s ease;
                z-index: 1040;
                display: flex;
            }

            .main-nav.open {
                transform: translateY(0);
            }

            .main-nav .nav-link {
                width: 100%;
                font-size: 18px;
                line-height: 56px;
                padding: 0;
                color: var(--text-main);
                border-bottom: 1px solid rgba(214, 208, 194, 0.5);
            }

            .main-nav .nav-link:last-child {
                border-bottom: none;
            }

            .main-nav .nav-link:hover {
                background: transparent;
                padding-left: 0;
                padding-right: 0;
                margin-left: 0;
                margin-right: 0;
            }

            .main-nav .nav-link.active {
                position: relative;
            }

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

            .main-nav .nav-link.active::before {
                content: '';
                position: absolute;
                left: -12px;
                top: 50%;
                transform: translateY(-50%);
                width: 3px;
                height: 24px;
                background: var(--accent);
                border-radius: 3px;
            }

            .nav-toggle {
                display: flex;
            }

            .hero-top-line h1 {
                font-size: 42px;
            }

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

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

            .process-steps {
                grid-template-columns: 1fr;
            }

            .cta-inner {
                padding: 48px 28px 40px;
            }

            .footer-top {
                grid-template-columns: 1fr 1fr;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 767.98px) {
            .plan-card {
                flex-direction: column;
                min-height: auto;
            }

            .plan-card-img {
                width: 100%;
                height: 200px;
            }

            .plan-card-body {
                padding: 24px 22px;
            }

            .feature-stats {
                padding: 56px 0;
            }

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

            .hero-top-line {
                flex-direction: column;
                gap: 12px;
            }

            .hero-top-line h1 {
                font-size: 36px;
            }

            .hero-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-inner h2 {
                font-size: 28px;
            }

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

        @media (max-width: 575.98px) {
            .hero-actions {
                width: 100%;
                flex-direction: column;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .feature-stats .stats-grid {
                grid-template-columns: 1fr;
            }

            .stat-item {
                padding: 24px 16px;
            }

            .cta-actions {
                flex-direction: column;
                width: 100%;
            }

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

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

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