/* roulang page: index */
:root {
            --primary: #0F5C5C;
            --primary-light: #E5F0EE;
            --primary-dark: #0A4747;
            --sand: #F2EDE4;
            --amber: #E87A2A;
            --ink: #222A2A;
            --sub: #5C6B6A;
            --line: #D8DEDD;
            --white: #FFFFFF;
            --radius-card: 12px;
            --radius-small: 8px;
            --shadow-card: 0 1px 3px rgba(15, 92, 92, 0.08);
            --shadow-hover: 0 8px 24px rgba(15, 92, 92, 0.12);
            --shadow-nav: 0 4px 16px rgba(15, 92, 92, 0.08);
            --transition: 0.2s ease;
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Inter", "Segoe UI", "Roboto", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--white);
            color: var(--ink);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .text-amberc {
            color: var(--amber);
        }

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

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

        /* Topbar */
        .topbar {
            background-color: var(--primary);
            color: rgba(255, 255, 255, 0.9);
            font-size: 13px;
            height: 40px;
            display: flex;
            align-items: center;
        }

        .topbar a {
            color: rgba(255, 255, 255, 0.9);
        }

        .topbar a:hover {
            color: #fff;
        }

        /* Navigation */
        .nav-wrapper {
            background-color: transparent;
            padding-top: 12px;
            position: relative;
            z-index: 50;
        }

        .nav-panel {
            background: #FFFFFF;
            border-radius: 12px;
            box-shadow: var(--shadow-nav);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 24px;
            border: 1px solid rgba(216, 222, 221, 0.6);
            gap: 16px;
            transform: translateY(0);
        }

        .logo-text {
            font-size: 24px;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
        }

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

        .nav-link-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--ink);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-link-item i {
            font-size: 14px;
            color: var(--primary);
            transition: color var(--transition);
        }

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

        .nav-link-item.active {
            background-color: var(--primary);
            color: #fff;
        }

        .nav-link-item.active i {
            color: #fff;
        }

        .btn-primary2 {
            background-color: var(--amber);
            color: #fff;
            height: 44px;
            padding: 0 26px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-primary2:hover {
            background-color: #D96E20;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 4px 14px rgba(232, 122, 42, 0.3);
        }

        .btn-primary2:focus,
        .btn-primary2:focus-visible {
            outline: 3px solid rgba(232, 122, 42, 0.3);
            outline-offset: 2px;
        }

        .btn-outline {
            border: 1px solid var(--primary);
            color: var(--primary);
            height: 48px;
            padding: 0 28px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }

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

        .btn-outline:focus-visible {
            outline: 3px solid rgba(15, 92, 92, 0.2);
            outline-offset: 2px;
        }

        .btn-amber {
            background-color: var(--amber);
            color: #fff;
            height: 48px;
            padding: 0 28px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            border: none;
            white-space: nowrap;
        }

        .btn-amber:hover {
            background-color: #D96E20;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 4px 14px rgba(232, 122, 42, 0.3);
        }

        .btn-amber:focus-visible {
            outline: 3px solid rgba(232, 122, 42, 0.3);
            outline-offset: 2px;
        }

        /* Hero */
        .hero-section {
            background: linear-gradient(180deg, var(--sand) 0%, #F7F4EE 85%, #FFFFFF 100%);
            padding-top: 60px;
            padding-bottom: 80px;
            position: relative;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 56px;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-light);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hero-title {
            font-size: 42px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: -0.02em;
        }

        .hero-title span {
            color: var(--primary);
        }

        .hero-sub {
            font-size: 17px;
            color: var(--sub);
            line-height: 1.8;
            margin-top: 20px;
            max-width: 520px;
        }

        .hero-cta {
            display: flex;
            gap: 16px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: flex;
            margin-top: 44px;
            gap: 0;
            border-top: 1px solid var(--line);
            padding-top: 28px;
            max-width: 480px;
        }

        .hero-stat-item {
            flex: 1;
            padding: 0 20px;
            border-left: 1px solid var(--line);
        }

        .hero-stat-item:first-child {
            border-left: none;
            padding-left: 0;
        }

        .stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--amber);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 13px;
            color: var(--sub);
            margin-top: 4px;
        }

        .hero-image-wrap {
            position: relative;
        }

        .hero-image-main {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 16px 40px rgba(15, 92, 92, 0.15);
            position: relative;
            aspect-ratio: 6/5;
            background-color: var(--primary-light);
        }

        .hero-image-main img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-float-card {
            position: absolute;
            bottom: -24px;
            left: -24px;
            background: var(--white);
            border-radius: 12px;
            padding: 14px 20px;
            box-shadow: var(--shadow-hover);
            display: flex;
            align-items: center;
            gap: 12px;
            border: 1px solid rgba(216, 222, 221, 0.4);
        }

        .hero-float-card .icon-circle {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
        }

        .hero-float-card .text-primary2 {
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
        }

        .hero-float-card .text-sub2 {
            font-size: 12px;
            color: var(--sub);
        }

        /* Products / Solutions Section */
        .section-padding {
            padding: 96px 0;
        }

        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 56px;
            gap: 24px;
            flex-wrap: wrap;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 15px;
            color: var(--sub);
            max-width: 560px;
            margin-top: 12px;
            line-height: 1.8;
        }

        .products-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
            margin-top: 24px;
        }

        .product-card {
            background: var(--white);
            border-radius: 12px;
            border: 1px solid var(--line);
            padding: 20px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .product-card:nth-child(2) {
            transform: translateY(24px);
        }

        .product-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(15, 92, 92, 0.2);
        }

        .product-card:nth-child(2):hover {
            transform: translateY(20px);
        }

        .product-card .card-img {
            border-radius: 8px;
            overflow: hidden;
            aspect-ratio: 4/3;
            background: var(--sand);
            position: relative;
        }

        .product-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            backdrop-filter: blur(4px);
        }

        .product-card .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--ink);
        }

        .product-card .card-desc {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.65;
            flex: 1;
        }

        .spec-row {
            display: flex;
            gap: 16px;
            border-top: 1px solid var(--line);
            padding-top: 14px;
            font-size: 13px;
            color: var(--sub);
        }

        .spec-row span:first-child {
            color: var(--ink);
            font-weight: 600;
        }

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

        .card-link:hover {
            gap: 10px;
            color: var(--amber);
        }

        /* Testimonials */
        .testimonials-section {
            background: var(--sand);
            padding: 80px 0;
        }

        .testimonial-slider {
            position: relative;
            max-width: 960px;
            margin: 0 auto;
            overflow: hidden;
        }

        .testimonial-track {
            display: flex;
            transition: all 0.3s ease;
            gap: 24px;
        }

        .testimonial-card {
            background: var(--white);
            border-radius: 16px;
            padding: 40px;
            flex: 0 0 calc(100% - 48px);
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(216, 222, 221, 0.5);
            position: relative;
        }

        .testimonial-quote {
            font-size: 16px;
            color: var(--ink);
            line-height: 1.9;
            padding-left: 20px;
            border-left: 3px solid var(--primary);
            margin: 24px 0;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-stars {
            color: var(--amber);
            font-size: 14px;
            letter-spacing: 2px;
        }

        .slider-btn {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--white);
            border: 1px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
            transition: all var(--transition);
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            z-index: 10;
            box-shadow: var(--shadow-card);
        }

        .slider-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .slider-prev {
            left: -20px;
        }

        .slider-next {
            right: -20px;
        }

        /* Guarantee bar */
        .guarantee-section {
            background: var(--white);
            padding: 64px 0;
        }

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

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 24px 20px;
            background: var(--sand);
            border-radius: 12px;
            transition: all var(--transition);
        }

        .guarantee-item:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .guarantee-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
            box-shadow: var(--shadow-card);
        }

        .guarantee-text {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
        }

        .guarantee-sub {
            font-size: 13px;
            color: var(--sub);
            font-weight: 400;
        }

        /* News / CMS Section */
        .news-section {
            background: var(--white);
            padding: 96px 0;
        }

        .news-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .news-card {
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 20px;
            display: flex;
            gap: 20px;
            transition: all var(--transition);
            align-items: flex-start;
        }

        .news-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(15, 92, 92, 0.2);
            transform: translateY(-2px);
        }

        .news-thumb {
            width: 96px;
            height: 96px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 32px;
            font-weight: 700;
            position: relative;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .news-cat {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 2px 10px;
            border-radius: 999px;
            margin-bottom: 8px;
        }

        .news-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
        }

        .news-summary {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            margin-top: 10px;
            font-size: 12px;
            color: var(--sub);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .news-empty {
            border: 2px dashed var(--line);
            border-radius: 12px;
            padding: 40px;
            text-align: center;
            background: #FBFBFA;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
            color: var(--sub);
            font-size: 15px;
            min-height: 120px;
            justify-content: center;
        }

        .news-empty i {
            font-size: 28px;
            color: var(--primary);
            opacity: 0.4;
        }

        .news-empty span {
            font-size: 14px;
            color: var(--sub);
        }

        /* CTA Section */
        .cta-section {
            background: var(--primary);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }

        .cta-title {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
        }

        .cta-sub {
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            margin-top: 8px;
            line-height: 1.7;
        }

        .cta-button-wrap {
            display: flex;
            gap: 16px;
            align-items: center;
            flex-wrap: wrap;
        }

        .btn-amber-large {
            background-color: var(--amber);
            color: #fff;
            height: 52px;
            padding: 0 36px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition);
            border: none;
        }

        .btn-amber-large:hover {
            background-color: #D96E20;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(232, 122, 42, 0.35);
        }

        .btn-outline-white {
            border: 1px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            height: 52px;
            padding: 0 36px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            background: transparent;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: #fff;
        }

        .cta-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            margin-top: 48px;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
        }

        /* Footer */
        .footer {
            background: var(--primary-dark);
            padding: 64px 0 0;
            color: rgba(255, 255, 255, 0.85);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 10px;
            color: #fff;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .footer-logo span.footer-logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
            max-width: 300px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 12px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 32px;
            height: 2px;
            background: var(--amber);
            border-radius: 2px;
        }

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            transition: color var(--transition);
        }

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

        .footer-contact {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .footer-contact i {
            color: var(--amber);
            margin-top: 4px;
            font-size: 14px;
            width: 16px;
            flex-shrink: 0;
        }

        .footer-line {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* Hamburger */
        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 20px;
        }

        .mobile-drawer {
            display: none;
            background: #fff;
            border-radius: 12px;
            padding: 20px;
            margin-top: 12px;
            box-shadow: var(--shadow-nav);
            flex-direction: column;
            gap: 6px;
            border: 1px solid var(--line);
        }

        .mobile-drawer .nav-link-item {
            width: 100%;
            padding: 12px 16px;
        }

        .mobile-drawer .btn-primary2 {
            margin-top: 12px;
            justify-content: center;
            width: 100%;
        }

        /* Focus style */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(15, 92, 92, 0.25);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 48px;
            }

            .hero-title {
                font-size: 36px;
            }

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

            .product-card:nth-child(2) {
                transform: none;
            }

            .product-card:nth-child(2):hover {
                transform: translateY(-4px);
            }

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

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

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

            .slider-prev {
                left: 4px;
            }

            .slider-next {
                right: 4px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .topbar .topbar-left {
                display: none;
            }

            .topbar .topbar-right {
                margin-left: auto;
            }

            .nav-links {
                display: none;
            }

            .nav-cta {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .section-padding {
                padding: 64px 0;
            }

            .section-title {
                font-size: 26px;
            }

            .hero-section {
                padding-top: 32px;
                padding-bottom: 48px;
            }

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

            .hero-cta .btn-amber,
            .hero-cta .btn-outline {
                width: 100%;
                justify-content: center;
            }

            .hero-stats {
                flex-direction: column;
                gap: 16px;
                border-top: none;
                padding-top: 24px;
            }

            .hero-stat-item {
                border-left: none;
                border-top: 1px solid var(--line);
                padding: 12px 0;
            }

            .hero-stat-item:first-child {
                border-top: none;
                padding-left: 0;
            }

            .hero-float-card {
                left: 12px;
                bottom: -20px;
            }

            .hero-image-main {
                aspect-ratio: 4/3;
            }

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

            .guarantee-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .guarantee-item {
                padding: 16px 14px;
                flex-direction: column;
                text-align: center;
            }

            .section-header {
                flex-direction: column;
                align-items: flex-start;
                margin-bottom: 36px;
            }

            .testimonial-card {
                padding: 24px;
            }

            .slider-btn {
                width: 36px;
                height: 36px;
            }

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

            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

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

            .cta-button-wrap .btn-amber-large,
            .cta-button-wrap .btn-outline-white {
                width: 100%;
                justify-content: center;
            }

            .news-card {
                flex-direction: column;
                padding: 16px;
            }

            .news-thumb {
                width: 100%;
                height: 140px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 30px;
            }

            .hero-sub {
                font-size: 15px;
            }

            .nav-panel {
                padding: 12px 16px;
            }

            .logo-text {
                font-size: 20px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }

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

            .guarantee-icon {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }

            .guarantee-text {
                font-size: 14px;
            }

            .footer-links {
                gap: 8px;
            }
        }

        /* hide scrollbar for slider and smooth transitions */
        .no-scrollbar::-webkit-scrollbar {
            display: none;
        }

        .no-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }

/* roulang page: category1 */
:root {
            --primary: #0F5C5C;
            --primary-dark: #0A4747;
            --primary-light: #E5F0EE;
            --sand: #F2EDE4;
            --amber: #E87A2A;
            --ink: #222A2A;
            --muted: #5C6B6A;
            --line: #D8DEDD;
            --white: #FFFFFF;
            --radius-lg: 12px;
            --radius-md: 8px;
            --shadow-card: 0 1px 3px rgba(15, 92, 92, 0.08);
            --shadow-hover: 0 8px 24px rgba(15, 92, 92, 0.12);
            --shadow-nav: 0 4px 16px rgba(15, 92, 92, 0.08);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Inter", "Segoe UI", "Roboto", sans-serif;
            background: var(--sand);
            color: var(--ink);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        img {
            display: block;
            max-width: 100%;
        }
        a {
            transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }

        /* ========== Header / Nav ========== */
        .nav-wrapper {
            padding-top: 16px;
            background: transparent;
            position: relative;
            z-index: 50;
        }
        .nav-panel {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 10px 16px;
            box-shadow: var(--shadow-nav);
            border: 1px solid #EDF1F0;
            gap: 16px;
        }
        .logo-text {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            font-size: 12px;
            font-weight: 800;
            letter-spacing: .5px;
            text-transform: uppercase;
        }
        .nav-links {
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
        }
        .nav-link-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink);
            text-decoration: none;
            border: 1px solid transparent;
            transition: .2s ease;
            white-space: nowrap;
        }
        .nav-link-item:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .nav-link-item.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary2 {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--amber);
            color: #fff;
            height: 40px;
            padding: 0 22px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            box-shadow: 0 2px 8px rgba(232, 122, 42, .25);
            transition: .2s ease;
            white-space: nowrap;
        }
        .btn-primary2:hover {
            background: #D96E20;
            transform: translateY(-2px);
            box-shadow: 0 4px 14px rgba(232, 122, 42, .35);
        }
        .btn-primary2:focus-visible {
            outline: 3px solid rgba(232, 122, 42, .35);
            outline-offset: 2px;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 20px;
            color: var(--primary);
            padding: 8px;
            border-radius: 8px;
        }
        .hamburger:focus-visible {
            outline: 2px solid rgba(15, 92, 92, .4);
            outline-offset: 2px;
        }
        .mobile-drawer {
            display: none;
        }
        .mobile-drawer.open {
            display: flex;
            flex-direction: column;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 16px;
            margin-top: 8px;
            box-shadow: var(--shadow-hover);
            border: 1px solid #EDF1F0;
            gap: 6px;
        }
        .mobile-drawer .nav-link-item {
            font-size: 15px;
            padding: 10px 14px;
            border-radius: 8px;
        }
        .mobile-drawer .btn-primary2 {
            margin-top: 8px;
            justify-content: center;
            height: 44px;
        }

        /* ========== Category Hero ========== */
        .cat-hero {
            background: var(--sand);
            padding: 48px 0 56px;
            position: relative;
        }
        .cat-hero-inner {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 32px;
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--amber);
        }
        .breadcrumb-sep {
            margin: 0 8px;
            color: #A9B4B3;
        }
        .cat-hero h1 {
            font-size: 36px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 12px;
            letter-spacing: .5px;
        }
        .cat-hero-desc {
            font-size: 16px;
            color: var(--muted);
            max-width: 640px;
            line-height: 1.8;
        }
        .cat-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 0;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 20px 8px;
            box-shadow: var(--shadow-card);
            border: 1px solid #EDF1F0;
        }
        .cat-stat {
            padding: 0 28px;
            text-align: center;
        }
        .cat-stat+.cat-stat {
            border-left: 1px solid var(--line);
        }
        .cat-stat-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--amber);
            line-height: 1.2;
        }
        .cat-stat-label {
            font-size: 13px;
            color: var(--muted);
            margin-top: 4px;
            white-space: nowrap;
        }

        /* ========== Filter Bar ========== */
        .solutions-section {
            padding: 0 0 72px;
        }
        .filter-bar {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            box-shadow: var(--shadow-card);
            margin-top: -28px;
            position: relative;
            z-index: 5;
            border: 1px solid #EDF1F0;
        }
        .filter-pills {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .filter-pill {
            padding: 7px 18px;
            border-radius: 999px;
            font-size: 13px;
            border: 1px solid var(--line);
            background: #fff;
            color: var(--muted);
            transition: .2s ease;
        }
        .filter-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .filter-pill.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .sort-select {
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 7px 14px;
            font-size: 13px;
            color: var(--muted);
            background: #fff;
            transition: .2s ease;
        }
        .sort-select:focus-visible {
            outline: 3px solid rgba(15, 92, 92, .18);
            border-color: var(--primary);
        }

        /* ========== Solution Cards ========== */
        .solution-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 36px;
        }
        .solution-card {
            width: calc((100% - 48px) / 3);
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid #E3E8E7;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform .2s ease, box-shadow .2s ease;
            display: flex;
            flex-direction: column;
        }
        .solution-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .solution-card.offset {
            margin-top: 24px;
        }
        .card-img {
            aspect-ratio: 4 / 3;
            overflow: hidden;
            position: relative;
            background: var(--primary-light);
        }
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 255, 255, .92);
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
            backdrop-filter: blur(4px);
        }
        .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.4;
        }
        .card-body p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }
        .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 10px;
            margin-top: auto;
            padding-top: 8px;
        }
        .card-meta .chip {
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 999px;
            font-weight: 500;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            margin-top: 4px;
            align-self: flex-start;
        }
        .card-link:hover {
            color: var(--amber);
        }
        .card-link i {
            font-size: 12px;
            transition: transform .2s ease;
        }
        .card-link:hover i {
            transform: translateX(3px);
        }

        /* ========== Pagination ========== */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 56px;
        }
        .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            border-radius: 999px;
            border: 1px solid var(--line);
            background: #fff;
            color: var(--muted);
            font-size: 14px;
            text-decoration: none;
            transition: .2s ease;
            padding: 0 12px;
        }
        .page-btn:hover:not(.active) {
            border-color: var(--primary);
            color: var(--primary);
        }
        .page-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ========== Section Common ========== */
        .section-block {
            padding: 72px 0;
        }
        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            margin-top: 12px;
            line-height: 1.3;
            color: var(--ink);
        }
        .section-desc {
            color: var(--muted);
            font-size: 15px;
            margin-top: 8px;
            max-width: 520px;
            line-height: 1.7;
        }

        /* ========== Process ========== */
        .process-section {
            background: #fff;
            border-radius: 0;
            padding: 72px 0;
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
        }
        .process-step {
            background: var(--sand);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            border: 1px solid #EDF1F0;
            position: relative;
            transition: .2s ease;
        }
        .process-step:hover {
            box-shadow: var(--shadow-card);
            transform: translateY(-4px);
        }
        .process-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            margin: 0 auto 14px;
        }
        .process-step h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* ========== Benefits ========== */
        .benefits-section {
            padding: 24px 0 72px;
        }
        .benefits-bar {
            background: #fff;
            border-radius: 16px;
            padding: 32px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid #EDF1F0;
        }
        .benefit-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }
        .benefit-item i {
            color: var(--primary);
            font-size: 22px;
            margin-top: 4px;
            width: 32px;
            text-align: center;
        }
        .benefit-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
        }
        .benefit-item p {
            font-size: 13px;
            color: var(--muted);
            margin-top: 4px;
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 72px 0;
            background: var(--sand);
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color .2s ease, box-shadow .2s ease;
        }
        .faq-item.open {
            border-color: rgba(15, 92, 92, .3);
            box-shadow: var(--shadow-card);
        }
        .faq-q {
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
        }
        .faq-q::after {
            content: '+';
            font-size: 22px;
            color: var(--primary);
            line-height: 1;
            transition: transform .2s ease;
            margin-left: 16px;
            flex-shrink: 0;
        }
        .faq-item.open .faq-q::after {
            content: '−';
        }
        .faq-a {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 24px 0 80px;
        }
        .cta-box {
            background: var(--primary);
            border-radius: 16px;
            padding: 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .05);
        }
        .cta-box::after {
            content: '';
            position: absolute;
            right: 40px;
            bottom: -80px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .04);
        }
        .cta-title {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            line-height: 1.4;
            position: relative;
            z-index: 2;
        }
        .cta-sub {
            color: rgba(255, 255, 255, .85);
            margin-top: 8px;
            font-size: 15px;
            max-width: 480px;
            position: relative;
            z-index: 2;
        }
        .cta-btn {
            background: var(--amber);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            padding: 0 36px;
            height: 52px;
            font-size: 16px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            box-shadow: 0 4px 16px rgba(232, 122, 42, .4);
            transition: .2s ease;
            position: relative;
            z-index: 2;
            white-space: nowrap;
        }
        .cta-btn:hover {
            background: #D96E20;
            transform: translateY(-2px);
        }
        .cta-btn:focus-visible {
            outline: 3px solid rgba(255, 255, 255, .35);
            outline-offset: 2px;
        }

        /* ========== Footer ========== */
        .footer {
            background: var(--primary-dark);
            color: #E0EFEE;
            padding: 64px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
        }
        .footer-desc {
            font-size: 14px;
            color: #B8D0CF;
            line-height: 1.7;
            max-width: 280px;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            color: #fff;
        }
        .footer-links,
        .footer-contact {
            list-style: none;
            padding: 0;
        }
        .footer-links li,
        .footer-contact li {
            margin-bottom: 10px;
            font-size: 14px;
        }
        .footer-links a,
        .footer-contact {
            color: #B8D0CF;
            text-decoration: none;
            transition: color .2s ease;
        }
        .footer-links a:hover {
            color: var(--amber);
        }
        .footer-contact li i {
            width: 16px;
            margin-right: 8px;
            color: var(--amber);
            text-align: center;
        }
        .footer-line {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding-top: 16px;
            margin-top: 32px;
            font-size: 12px;
            color: rgba(255, 255, 255, .6);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1023px) {
            .solution-card {
                width: calc((100% - 24px) / 2);
            }
            .solution-card.offset {
                margin-top: 0;
            }
            .benefits-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .cat-hero h1 {
                font-size: 30px;
            }
        }
        @media (max-width: 767px) {
            .nav-links,
            .nav-panel>.btn-primary2 {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .nav-panel {
                padding: 10px 12px;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 11px;
            }
            .cat-hero {
                padding: 32px 0 48px;
            }
            .cat-hero h1 {
                font-size: 26px;
            }
            .cat-hero-desc {
                font-size: 14px;
            }
            .cat-stats {
                width: 100%;
                padding: 12px 4px;
            }
            .cat-stat {
                padding: 0 12px;
            }
            .cat-stat-num {
                font-size: 22px;
            }
            .cat-stat-label {
                font-size: 11px;
            }
            .filter-bar {
                margin-top: -20px;
                padding: 12px 14px;
            }
            .solution-grid {
                gap: 16px;
            }
            .solution-card {
                width: 100%;
            }
            .solution-card.offset {
                margin-top: 0;
            }
            .section-block,
            .process-section,
            .faq-section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .benefits-bar {
                grid-template-columns: 1fr 1fr;
                padding: 24px 16px;
                gap: 20px;
            }
            .benefit-item {
                flex-direction: column;
                gap: 8px;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .process-step {
                padding: 20px 16px;
            }
            .cta-box {
                padding: 32px 24px;
                flex-direction: column;
                text-align: center;
            }
            .cta-title {
                font-size: 22px;
            }
            .cta-btn {
                width: 100%;
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-line {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .pagination {
                flex-wrap: wrap;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .benefits-bar {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .cat-stats {
                flex-direction: column;
                gap: 12px;
            }
            .cat-stat {
                padding: 8px 0;
            }
            .cat-stat+.cat-stat {
                border-left: none;
                border-top: 1px solid var(--line);
            }
        }

/* roulang page: article */
:root {
    --primary: #0F5C5C;
    --primary-dark: #0A4747;
    --primary-light: #E5F0EE;
    --sand: #F2EDE4;
    --amber: #E87A2A;
    --amber-dark: #D96E20;
    --ink: #222A2A;
    --muted: #5C6B6A;
    --border: #D8DEDD;
    --card-border: #E3E8E7;
    --white: #FFFFFF;
    --radius-lg: 12px;
    --radius-md: 8px;
    --radius-pill: 999px;
    --shadow-card: 0 1px 3px rgba(15,92,92,0.08);
    --shadow-hover: 0 8px 24px rgba(15,92,92,0.12);
    --shadow-nav: 0 4px 16px rgba(15,92,92,0.08);
    --transition: 0.2s ease;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Inter', 'Segoe UI', sans-serif;
    background: var(--sand);
    color: var(--ink);
    font-size: 16px;
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary); }
button { cursor: pointer; background: none; border: none; font-family: inherit; }
ul, ol { list-style: none; }
a:focus-visible, button:focus-visible {
    outline: 3px solid rgba(232,122,42,0.35);
    outline-offset: 2px;
    border-radius: 4px;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* 按钮 */
.btn-primary2 {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    background: var(--primary); color: #fff; height: 40px; padding: 0 20px;
    border-radius: 8px; font-size: 14px; font-weight: 600;
    transition: all var(--transition);
}
.btn-primary2:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(15,92,92,0.22); }
.btn-primary2:active { transform: translateY(0); opacity: 0.9; }
.btn-amber {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    background: var(--amber); color: #fff; height: 48px; padding: 0 28px;
    border-radius: 8px; font-size: 15px; font-weight: 600; border: none;
    transition: all var(--transition);
}
.btn-amber:hover { background: var(--amber-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,122,42,0.28); }
.btn-amber:active { transform: translateY(0); opacity: 0.9; }
.btn-amber:focus-visible { outline: 3px solid rgba(232,122,42,0.3); outline-offset: 2px; }
.btn-outline {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    border: 1px solid var(--primary); color: var(--primary); height: 48px; padding: 0 28px;
    border-radius: 8px; background: transparent; font-size: 15px; font-weight: 600;
    transition: all var(--transition);
}
.btn-outline:hover { background: var(--primary-light); color: var(--primary); }
.btn-outline:focus-visible { outline: 3px solid rgba(15,92,92,0.2); outline-offset: 2px; }
.btn-block { width: 100%; }

/* 导航 */
.nav-wrapper {
    position: sticky; top: 0; z-index: 100;
    background: rgba(242,237,228,0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 12px 0;
}
.nav-panel {
    background: var(--white); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-nav);
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; padding: 12px 20px;
}
.logo-text { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 22px; color: var(--ink); white-space: nowrap; }
.logo-text:hover { color: var(--ink); }
.logo-icon {
    background: var(--primary); color: #fff; border-radius: 8px;
    padding: 4px 8px; font-size: 12px; letter-spacing: 0.6px; font-weight: 800;
    line-height: 1.4; text-transform: uppercase;
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-link-item {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 16px; border-radius: var(--radius-pill);
    font-size: 14px; font-weight: 500; color: var(--muted);
    transition: all var(--transition); white-space: nowrap;
}
.nav-link-item i { font-size: 14px; opacity: 0.85; }
.nav-link-item:hover { background: var(--primary-light); color: var(--primary); }
.nav-link-item.active { background: var(--primary); color: #fff; }
.nav-link-item.active:hover { color: #fff; background: var(--primary-dark); }
.hamburger {
    display: none; width: 44px; height: 44px; border-radius: var(--radius-md);
    align-items: center; justify-content: center; font-size: 18px;
    color: var(--primary); background: var(--primary-light);
    transition: all var(--transition);
}
.hamburger:hover { background: var(--primary-light); color: var(--primary-dark); }
.mobile-drawer {
    display: none; flex-direction: column; gap: 4px;
    background: var(--white); border-radius: var(--radius-lg);
    margin-top: 8px; padding: 12px; box-shadow: var(--shadow-nav);
}
.mobile-drawer.open { display: flex; }
.mobile-drawer .nav-link-item { padding: 12px 16px; border-radius: var(--radius-md); font-size: 15px; min-height: 44px; }
.mobile-drawer .btn-primary2 { margin-top: 8px; width: 100%; justify-content: center; }

/* 文章栏目头 */
.article-hero {
    background: var(--sand);
    padding: 44px 0 48px;
    position: relative;
    overflow: hidden;
}
.article-hero::before {
    content: '';
    position: absolute; right: -100px; top: -100px;
    width: 320px; height: 320px; border-radius: 50%;
    background: radial-gradient(circle, rgba(15,92,92,0.12) 0%, transparent 70%);
    pointer-events: none;
}
.breadcrumb {
    display: flex; align-items: center; gap: 8px;
    font-size: 13px; color: var(--muted); flex-wrap: wrap;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb-sep { color: #B5BFBD; }
.breadcrumb-current {
    color: var(--ink); font-weight: 500;
    max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.article-h1 {
    font-size: 34px; line-height: 1.35; font-weight: 700;
    color: var(--ink); margin: 14px 0 0; max-width: 760px;
    overflow-wrap: break-word; text-wrap: balance;
}
.article-meta {
    display: flex; align-items: center; flex-wrap: wrap; gap: 18px;
    font-size: 14px; color: var(--muted); margin-top: 18px;
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--primary); font-size: 14px; }
.meta-badge {
    background: var(--primary-light); color: var(--primary);
    padding: 3px 10px; border-radius: var(--radius-pill); font-size: 12px; font-weight: 600;
}
.hero-art-wrap {
    position: relative; border-radius: 16px; overflow: hidden;
    box-shadow: var(--shadow-hover);
}
.hero-art-wrap img { width: 100%; height: 230px; object-fit: cover; }
.hero-art-wrap::after {
    content: '易倍emc官网';
    position: absolute; left: 16px; bottom: 14px;
    background: rgba(255,255,255,0.92); color: var(--primary);
    font-size: 13px; font-weight: 600; padding: 4px 12px; border-radius: var(--radius-pill);
}

/* 正文区 */
.article-main { padding: 48px 0 72px; }
.article-grid {
    display: grid;
    grid-template-columns: minmax(0, 720px) 320px;
    gap: 48px;
    justify-content: center;
    align-items: start;
}
.article-content { font-size: 16px; line-height: 1.9; color: var(--ink); }
.article-content h2 {
    font-size: 24px; font-weight: 600; color: var(--ink);
    margin: 2em 0 0.8em; line-height: 1.4;
}
.article-content h3 {
    font-size: 18px; font-weight: 600; color: var(--ink);
    margin: 1.8em 0 0.7em; line-height: 1.5;
}
.article-content p { margin: 0 0 1.5em; }
.article-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--amber); }
.article-content blockquote {
    border-left: 4px solid var(--primary);
    background: var(--primary-light);
    padding: 16px 20px;
    border-radius: 0 8px 8px 0;
    margin: 1.6em 0;
    color: var(--muted);
}
.article-content pre {
    background: #F5F7F6; padding: 18px; border-radius: 8px;
    font-family: 'JetBrains Mono', Consolas, Menlo, monospace;
    font-size: 14px; line-height: 1.7; overflow-x: auto; margin: 1.6em 0;
    border: 1px solid var(--border);
}
.article-content code {
    background: #F5F7F6; padding: 2px 6px; border-radius: 4px;
    font-family: Consolas, Menlo, monospace; font-size: 0.92em;
}
.article-content img { border-radius: 8px; margin: 1.5em 0; height: auto; }
.article-content ul, .article-content ol { padding-left: 1.4em; margin: 0 0 1.5em; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 0.4em; }
.article-content table { width: 100%; border-collapse: collapse; margin: 1.6em 0; }
.article-content th, .article-content td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; }
.article-content th { background: var(--primary-light); font-weight: 600; }
.article-content hr { border: none; border-top: 1px solid var(--border); margin: 2em 0; }
.article-tags {
    display: flex; flex-wrap: wrap; gap: 10px;
    margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border);
}
.tag-chip {
    display: inline-block; background: var(--primary-light); color: var(--primary);
    font-size: 13px; font-weight: 500; padding: 4px 14px;
    border-radius: var(--radius-pill); transition: all var(--transition);
}
.tag-chip:hover { background: var(--primary); color: #fff; }

/* 空文章状态 */
.article-empty {
    background: var(--white); border: 1px dashed var(--border);
    border-radius: var(--radius-lg); padding: 64px 32px;
    text-align: center;
}
.empty-icon {
    width: 68px; height: 68px; margin: 0 auto 20px;
    border-radius: 50%; background: var(--primary-light);
    display: flex; align-items: center; justify-content: center;
    color: var(--primary); font-size: 26px;
}
.article-empty h2 { font-size: 20px; font-weight: 600; color: var(--ink); }
.article-empty p { color: var(--muted); font-size: 14px; margin: 8px 0 24px; }

/* 侧边栏 */
.article-sidebar { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 96px; }
.side-card {
    background: var(--white); border: 1px solid var(--card-border);
    border-radius: var(--radius-lg); padding: 20px;
    box-shadow: var(--shadow-card);
}
.side-card-title {
    font-size: 16px; font-weight: 600; color: var(--ink);
    margin-bottom: 14px; padding-left: 12px; position: relative;
}
.side-card-title::before {
    content: ''; position: absolute; left: 0; top: 5px; bottom: 5px;
    width: 3px; border-radius: 2px; background: var(--amber);
}
.side-list { display: flex; flex-direction: column; }
.side-link {
    display: flex; align-items: flex-start; gap: 10px;
    font-size: 14px; color: var(--muted);
    padding: 10px 0; border-bottom: 1px dashed #EDF1F0;
    transition: all var(--transition);
}
.side-link:last-child { border-bottom: none; }
.side-link i { color: var(--primary); font-size: 12px; margin-top: 6px; transition: transform var(--transition); }
.side-link:hover { color: var(--primary); padding-left: 4px; }
.side-link:hover i { transform: translateX(3px); }
.side-company-logo {
    display: flex; align-items: center; gap: 8px;
    font-weight: 700; font-size: 18px; color: var(--ink); margin-bottom: 12px;
}
.side-company-logo .logo-icon { padding: 3px 6px; font-size: 10px; }
.side-company p { font-size: 13px; color: var(--muted); line-height: 1.7; margin-bottom: 16px; }
.side-img {
    width: 100%; height: 150px; object-fit: cover;
    border-radius: var(--radius-md); margin-bottom: 14px;
}
.side-media-link {
    font-size: 14px; color: var(--primary); font-weight: 600;
    display: inline-flex; align-items: center; gap: 6px;
    transition: all var(--transition);
}
.side-media-link:hover { color: var(--amber); }
.side-media-link i { transition: transform var(--transition); }
.side-media-link:hover i { transform: translateX(3px); }

/* 上一篇 / 下一篇 */
.post-nav-section { padding: 16px 0 8px; }
.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.post-nav-item {
    background: var(--white); border: 1px solid var(--card-border);
    border-radius: var(--radius-lg); padding: 20px 24px;
    display: flex; flex-direction: column; gap: 8px;
    box-shadow: var(--shadow-card);
    transition: all var(--transition);
}
.post-nav-item:hover { border-color: var(--primary); box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.post-nav-item.next { text-align: right; align-items: flex-end; }
.post-nav-label { font-size: 13px; color: var(--muted); display: inline-flex; align-items: center; gap: 6px; }
.post-nav-title {
    font-size: 15px; font-weight: 600; color: var(--ink);
    max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* 相关推荐 */
.related-section { padding: 64px 0 40px; background: var(--sand); }
.section-heading { display: flex; flex-direction: column; gap: 8px; margin-bottom: 32px; }
.section-tag { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: 2px; color: var(--amber); }
.section-title { font-size: 30px; font-weight: 700; color: var(--ink); line-height: 1.3; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
    background: var(--white); border: 1px solid var(--card-border);
    border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: all var(--transition); display: block;
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: transparent; }
.related-card:hover .related-img-wrap img { transform: scale(1.04); }
.related-img-wrap { position: relative; overflow: hidden; aspect-ratio: 4 / 3; }
.related-img-wrap::after {
    content: '易倍emc';
    position: absolute; left: 12px; top: 12px;
    background: rgba(15,92,92,0.92); color: #fff;
    font-size: 11px; font-weight: 600; padding: 3px 10px; border-radius: var(--radius-pill);
}
.related-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.related-body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 8px; }
.related-body h3 {
    font-size: 16px; font-weight: 600; color: var(--ink); line-height: 1.5;
    overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.related-body p {
    font-size: 13px; color: var(--muted); line-height: 1.7;
    overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.related-meta { font-size: 12px; color: #98A6A4; display: inline-flex; align-items: center; gap: 6px; }

/* CTA */
.cta-block { background: var(--primary); }
.cta-inner {
    display: flex; align-items: center; justify-content: space-between;
    gap: 32px; padding: 56px 0; color: #fff;
}
.cta-tag {
    display: inline-block; font-size: 12px; letter-spacing: 1px;
    color: rgba(255,255,255,0.75); background: rgba(255,255,255,0.12);
    padding: 4px 12px; border-radius: var(--radius-pill); margin-bottom: 12px;
}
.cta-content h2 { font-size: 28px; font-weight: 600; color: #fff; margin-bottom: 8px; line-height: 1.3; }
.cta-content p { color: rgba(255,255,255,0.75); font-size: 15px; max-width: 520px; }
.cta-actions { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }

/* 页脚 */
.footer { background: var(--primary-dark); color: #E0EFEE; padding: 60px 0 0; margin-top: 0; }
.footer-grid {
    display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
    gap: 40px; padding-bottom: 40px;
}
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo .logo-icon { font-size: 11px; }
.footer-logo-text { font-size: 22px; font-weight: 700; color: #fff; }
.footer-desc { font-size: 14px; color: rgba(224,239,238,0.72); line-height: 1.8; max-width: 320px; }
.footer-title { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: rgba(224,239,238,0.72); transition: color var(--transition); }
.footer-links a:hover { color: var(--amber); }
.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.footer-contact li {
    font-size: 14px; display: flex; align-items: center; gap: 10px;
    color: rgba(224,239,238,0.72);
}
.footer-contact i { width: 16px; color: var(--amber); }
.footer-line {
    border-top: 1px solid rgba(255,255,255,0.12);
    padding: 20px 0; display: flex; justify-content: space-between;
    gap: 16px; color: rgba(224,239,238,0.6); font-size: 12px; flex-wrap: wrap;
}

/* 响应式 */
@media (min-width: 1024px) {
    .article-hero { padding: 52px 0 56px; }
}
@media (max-width: 1023px) {
    .article-grid { grid-template-columns: 1fr; }
    .article-sidebar { position: static; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .container { padding: 0 16px; }
    .nav-panel { padding: 10px 14px; }
    .logo-text { font-size: 19px; }
    .nav-links { display: none; }
    .hamburger { display: inline-flex; }
    .nav-panel > .btn-primary2 { display: none; }
    .article-h1 { font-size: 24px; margin-top: 10px; }
    .article-meta { gap: 12px; font-size: 13px; }
    .article-main { padding: 36px 0 56px; }
    .article-content { font-size: 15px; }
    .article-content h2 { font-size: 21px; }
    .article-content h3 { font-size: 17px; }
    .post-nav-section { padding: 8px 0 0; }
    .related-section { padding: 48px 0 24px; }
    .section-title { font-size: 24px; }
    .related-grid { grid-template-columns: 1fr; }
    .cta-inner { flex-direction: column; align-items: flex-start; padding: 40px 0; }
    .cta-content h2 { font-size: 23px; }
    .cta-actions { width: 100%; flex-direction: column; }
    .cta-actions .btn-amber { width: 100%; }
    .footer { padding-top: 48px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; padding-bottom: 32px; }
}
@media (max-width: 560px) {
    .article-hero { padding: 32px 0 36px; }
    .article-grid { gap: 28px; }
    .post-nav { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .footer-line { flex-direction: column; gap: 8px; }
    .breadcrumb { font-size: 12px; }
    .breadcrumb-current { max-width: 180px; }
}