/* roulang page: index */
:root {
            --c-primary: #0E3D2E;
            --c-secondary: #1F5A47;
            --c-accent: #C97A3D;
            --c-accent-hover: #B06C32;
            --c-bg: #F5F2EA;
            --c-card: #FFFFFF;
            --c-text: #1C1C1C;
            --c-text-sub: #4A4A4A;
            --c-line: #DDE5DC;
            --c-muted: #F0EDE4;
            --c-white: #FFFFFF;
            --c-focus: #2E8B6B;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 20px;
            --radius-img: 8px;
            --shadow-card: 0 2px 12px rgba(14, 61, 46, .06);
            --shadow-card-hover: 0 8px 24px rgba(14, 61, 46, .12);
            --shadow-drop: 0 12px 32px rgba(0, 0, 0, .12);
            --transition-base: all .25s ease;
            --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Noto Sans SC", sans-serif;
            --section-y: 72px;
            --section-y-mobile: 48px;
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            color: var(--c-text);
            background-color: var(--c-bg);
            line-height: 1.85;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--c-accent);
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover,
        a:focus {
            color: var(--c-primary);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--c-focus);
            outline-offset: 2px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--c-text);
            line-height: 1.35;
            margin-top: 0;
            font-weight: 700;
        }

        h1 {
            font-size: 38px;
            font-weight: 800;
            letter-spacing: .5px;
        }

        h2 {
            font-size: 28px;
            font-weight: 750;
        }

        h3 {
            font-size: 20px;
            font-weight: 650;
        }

        p {
            margin-bottom: 1rem;
            color: var(--c-text-sub);
        }

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

        .section {
            padding: var(--section-y) 0;
            position: relative;
        }

        .section-title {
            font-size: 28px;
            font-weight: 750;
            margin-bottom: 12px;
            color: var(--c-text);
        }

        .section-lead {
            font-size: 17px;
            color: var(--c-text-sub);
            max-width: 720px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .text-accent {
            color: var(--c-accent);
        }

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

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

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

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

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

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

        .btn {
            display: inline-block;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            text-align: center;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition-base);
            line-height: 1.5;
            text-decoration: none !important;
        }

        .btn-primary {
            background-color: var(--c-accent);
            color: var(--c-white);
            border-color: var(--c-accent);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--c-primary);
            color: var(--c-white);
            border-color: var(--c-primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(14, 61, 46, .18);
        }

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

        .btn-outline:hover,
        .btn-outline:focus {
            background-color: var(--c-accent);
            color: var(--c-white);
            border-color: var(--c-accent);
            transform: translateY(-2px);
        }

        .btn-white-outline {
            background-color: transparent;
            color: var(--c-white);
            border-color: rgba(255, 255, 255, .6);
        }

        .btn-white-outline:hover,
        .btn-white-outline:focus {
            background-color: var(--c-accent);
            color: var(--c-white);
            border-color: var(--c-accent);
        }

        .btn-text {
            background: none;
            border: none;
            color: var(--c-accent);
            padding: 4px 0;
            font-weight: 600;
            font-size: 15px;
        }

        .btn-text:hover,
        .btn-text:focus {
            text-decoration: underline;
            color: var(--c-primary);
        }

        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 500;
            line-height: 1.6;
            background-color: var(--c-muted);
            color: var(--c-primary);
        }

        .badge-accent {
            background-color: var(--c-accent);
            color: var(--c-white);
        }

        .card {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: var(--transition-base);
        }

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

        .card-plain {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 22px;
        }

        .grid-x {
            display: flex;
            flex-wrap: wrap;
        }

        .cell {
            flex: 1 0 auto;
        }

        @media screen and (min-width: 1024px) {
            h1 {
                font-size: 42px;
            }
            h2 {
                font-size: 30px;
            }
            .section {
                padding: var(--section-y) 0;
            }
        }

        @media screen and (max-width: 640px) {
            h1 {
                font-size: 28px;
            }
            h2 {
                font-size: 22px;
            }
            h3 {
                font-size: 18px;
            }
            body {
                font-size: 15px;
            }
            .section {
                padding: var(--section-y-mobile) 0;
            }
            .section-title {
                font-size: 22px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* Header & Navigation */
        .site-header {
            background-color: var(--c-primary);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, .15);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            max-width: var(--container-max);
            margin: 0 auto;
            height: 64px;
            position: relative;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--c-white);
            font-weight: 800;
            font-size: 20px;
            letter-spacing: .5px;
            text-decoration: none !important;
            white-space: nowrap;
        }

        .nav-logo:hover,
        .nav-logo:focus {
            color: var(--c-white);
        }

        .nav-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: var(--c-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--c-white);
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 4px;
        }

        .nav-menu>li {
            position: relative;
            margin: 0;
        }

        .nav-menu>li>a {
            color: rgba(255, 255, 255, .88);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 14px;
            display: block;
            border-radius: 6px;
            text-decoration: none !important;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .nav-menu>li>a:hover,
        .nav-menu>li>a:focus {
            color: var(--c-accent);
            background-color: rgba(255, 255, 255, .06);
        }

        .nav-menu>li.active>a {
            color: var(--c-accent);
            border-bottom: 2px solid var(--c-accent);
            border-radius: 6px 6px 0 0;
        }

        .nav-dropdown {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 240px;
            background: var(--c-card);
            border-radius: 8px;
            box-shadow: var(--shadow-drop);
            padding: 12px;
            list-style: none;
            margin: 8px 0 0 0;
            z-index: 1001;
        }

        .nav-menu>li:hover .nav-dropdown,
        .nav-menu>li:focus-within .nav-dropdown {
            display: block;
        }

        .nav-dropdown>li {
            margin: 0;
        }

        .nav-dropdown>li>a {
            display: block;
            padding: 10px 14px;
            color: var(--c-text);
            font-size: 14px;
            border-radius: 6px;
            text-decoration: none !important;
            transition: var(--transition-base);
        }

        .nav-dropdown>li>a:hover,
        .nav-dropdown>li>a:focus {
            background-color: var(--c-muted);
            color: var(--c-accent);
        }

        .nav-dropdown-title {
            font-size: 12px;
            font-weight: 700;
            color: var(--c-text-sub);
            text-transform: uppercase;
            letter-spacing: .5px;
            padding: 8px 14px 4px;
            margin: 0;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--c-white);
            font-size: 24px;
            cursor: pointer;
            padding: 8px;
        }

        @media screen and (max-width: 1024px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background-color: var(--c-primary);
                flex-direction: column;
                align-items: stretch;
                padding: 12px 16px;
                gap: 0;
                box-shadow: 0 8px 24px rgba(0, 0, 0, .2);
                max-height: calc(100vh - 64px);
                overflow-y: auto;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu>li {
                width: 100%;
            }
            .nav-menu>li>a {
                padding: 12px 14px;
                font-size: 16px;
            }
            .nav-menu>li.active>a {
                border-bottom: none;
                background-color: rgba(255, 255, 255, .08);
            }
            .nav-dropdown {
                display: none;
                position: static;
                min-width: 0;
                background-color: rgba(255, 255, 255, .04);
                box-shadow: none;
                padding: 4px 8px 4px 20px;
                margin: 0;
            }
            .nav-menu>li:hover .nav-dropdown,
            .nav-menu>li:focus-within .nav-dropdown {
                display: block;
            }
            .nav-dropdown>li>a {
                color: rgba(255, 255, 255, .8);
                padding: 10px 12px;
                font-size: 14px;
            }
            .nav-dropdown>li>a:hover,
            .nav-dropdown>li>a:focus {
                background-color: rgba(255, 255, 255, .08);
                color: var(--c-accent);
            }
            .nav-dropdown-title {
                color: rgba(255, 255, 255, .5);
                padding: 10px 12px 2px;
            }
            .nav-toggle {
                display: block;
            }
        }

        @media screen and (max-width: 640px) {
            .nav-wrapper {
                padding: 0 16px;
                height: 56px;
            }
            .nav-logo {
                font-size: 17px;
            }
            .nav-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 14px;
                border-radius: 6px;
            }
            .nav-menu {
                top: 56px;
            }
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 580px;
            background-image: linear-gradient(135deg, rgba(14, 61, 46, .92) 0%, rgba(31, 90, 71, .82) 50%, rgba(14, 61, 46, .92) 100%), url('/assets/images/ef07c74f771d7c25.webp');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            color: var(--c-white);
            padding: 72px 0 48px;
            overflow: hidden;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--c-accent), transparent);
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero h1 {
            color: var(--c-white);
            font-size: 40px;
            font-weight: 850;
            margin-bottom: 20px;
            letter-spacing: 1px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, .25);
        }

        .hero-subtitle {
            color: rgba(255, 255, 255, .9);
            font-size: 17px;
            max-width: 680px;
            margin-bottom: 28px;
            line-height: 1.85;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .hero-countdown {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            background: rgba(255, 255, 255, .08);
            border-radius: 12px;
            padding: 16px 20px;
            border: 1px solid rgba(255, 255, 255, .18);
            margin-bottom: 20px;
            backdrop-filter: blur(6px);
        }

        .countdown-label {
            font-size: 13px;
            font-weight: 600;
            color: rgba(255, 255, 255, .75);
            letter-spacing: 1px;
        }

        .countdown-timer {
            font-size: 22px;
            font-weight: 800;
            color: var(--c-accent);
            letter-spacing: 2px;
            font-variant-numeric: tabular-nums;
        }

        .hero-trust {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            color: rgba(255, 255, 255, .7);
            font-size: 13px;
        }

        .hero-trust span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-trust i {
            color: var(--c-accent);
            font-size: 14px;
        }

        @media screen and (min-width: 1024px) {
            .hero {
                min-height: 640px;
            }
            .hero h1 {
                font-size: 46px;
            }
        }

        @media screen and (max-width: 640px) {
            .hero {
                min-height: auto;
                padding: 48px 0 36px;
            }
            .hero h1 {
                font-size: 27px;
                margin-bottom: 14px;
            }
            .hero-subtitle {
                font-size: 15px;
                margin-bottom: 20px;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-countdown {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 12px 16px;
            }
            .countdown-timer {
                font-size: 18px;
            }
            .hero-trust {
                gap: 12px;
                font-size: 12px;
            }
        }

        /* KPI Strip */
        .kpi-strip {
            background-color: var(--c-primary);
            padding: 28px 0;
            border-top: 3px solid var(--c-accent);
        }

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

        .kpi-item {
            color: var(--c-white);
            padding: 0 16px;
            position: relative;
        }

        .kpi-item+.kpi-item::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 40px;
            background: rgba(255, 255, 255, .15);
        }

        .kpi-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--c-accent);
            line-height: 1.2;
            letter-spacing: 1px;
        }

        .kpi-label {
            font-size: 13px;
            color: rgba(255, 255, 255, .75);
            margin-top: 4px;
        }

        @media screen and (max-width: 768px) {
            .kpi-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .kpi-item+.kpi-item::before {
                display: none;
            }
            .kpi-number {
                font-size: 26px;
            }
        }

        @media screen and (max-width: 640px) {
            .kpi-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .kpi-number {
                font-size: 22px;
            }
            .kpi-label {
                font-size: 12px;
            }
        }

        /* Pain points */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .pain-card {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: var(--transition-base);
            border-top: 3px solid var(--c-accent);
        }

        .pain-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--c-accent);
        }

        .pain-card h3 {
            font-size: 18px;
            margin-bottom: 12px;
            color: var(--c-text);
        }

        .pain-card p {
            font-size: 15px;
            color: var(--c-text-sub);
            margin-bottom: 8px;
        }

        @media screen and (max-width: 768px) {
            .pain-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Solution */
        .solution-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .solution-image img {
            border-radius: var(--radius-img);
            box-shadow: var(--shadow-card-hover);
            width: 100%;
            object-fit: cover;
        }

        .solution-text h2 {
            margin-bottom: 16px;
        }

        .solution-text p {
            font-size: 16px;
            margin-bottom: 14px;
        }

        @media screen and (max-width: 768px) {
            .solution-wrap {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* Deep content */
        .deep-content {
            background-color: var(--c-muted);
            border-radius: 16px;
            padding: 40px 36px;
            border: 1px solid var(--c-line);
        }

        .deep-content h2 {
            color: var(--c-primary);
            margin-bottom: 16px;
        }

        .deep-content h3 {
            color: var(--c-secondary);
            margin-top: 28px;
            margin-bottom: 12px;
            font-size: 20px;
        }

        .deep-content p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--c-text-sub);
        }

        .deep-content ul,
        .deep-content ol {
            padding-left: 24px;
            margin-bottom: 16px;
            color: var(--c-text-sub);
            font-size: 16px;
            line-height: 1.9;
        }

        .deep-content li {
            margin-bottom: 8px;
        }

        .deep-content blockquote {
            border-left: 4px solid var(--c-accent);
            padding: 14px 20px;
            background: var(--c-card);
            border-radius: 0 8px 8px 0;
            margin: 20px 0;
            color: var(--c-text-sub);
            font-style: italic;
        }

        .deep-content img {
            border-radius: var(--radius-img);
            margin: 20px 0;
            box-shadow: var(--shadow-card);
        }

        @media screen and (max-width: 640px) {
            .deep-content {
                padding: 24px 16px;
            }
            .deep-content h3 {
                font-size: 18px;
            }
        }

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

        .step-card {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
            position: relative;
            transition: var(--transition-base);
            text-align: center;
        }

        .step-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--c-accent);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--c-accent);
            color: var(--c-white);
            font-weight: 800;
            font-size: 18px;
            margin-bottom: 14px;
        }

        .step-card h3 {
            font-size: 17px;
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--c-text-sub);
            margin-bottom: 0;
        }

        @media screen and (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media screen and (max-width: 640px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Results / Milestone */
        .results-section {
            background-color: var(--c-accent);
            padding: 48px 0;
        }

        .results-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            text-align: center;
        }

        .result-item {
            color: var(--c-white);
            padding: 12px 16px;
        }

        .result-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--c-white);
            letter-spacing: 1px;
            line-height: 1.3;
        }

        .result-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .82);
            margin-top: 4px;
        }

        @media screen and (max-width: 640px) {
            .results-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .result-number {
                font-size: 28px;
            }
        }

        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 22px;
        }

        .testimonial-stars {
            color: var(--c-accent);
            font-size: 14px;
            margin-bottom: 10px;
        }

        .testimonial-text {
            font-size: 15px;
            color: var(--c-text-sub);
            margin-bottom: 12px;
            line-height: 1.8;
        }

        .testimonial-author {
            font-size: 13px;
            font-weight: 600;
            color: var(--c-primary);
        }

        @media screen and (max-width: 768px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Audience */
        .audience-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 14px;
        }

        .audience-card {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 18px 14px;
            text-align: center;
            transition: var(--transition-base);
        }

        .audience-card:hover {
            border-color: var(--c-accent);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .audience-card .audience-icon {
            font-size: 26px;
            color: var(--c-accent);
            margin-bottom: 8px;
        }

        .audience-card h4 {
            font-size: 14px;
            font-weight: 650;
            margin-bottom: 4px;
            color: var(--c-text);
        }

        .audience-card p {
            font-size: 12px;
            color: var(--c-text-sub);
            margin-bottom: 0;
            line-height: 1.6;
        }

        @media screen and (max-width: 1024px) {
            .audience-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media screen and (max-width: 640px) {
            .audience-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .audience-card {
                padding: 14px 10px;
            }
        }

        /* Category entry */
        .category-entry {
            background-color: var(--c-primary);
            padding: 48px 0;
        }

        .category-entry .section-title {
            color: var(--c-white);
        }

        .category-entry .section-lead {
            color: rgba(255, 255, 255, .75);
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 14px;
        }

        .category-card {
            background-color: rgba(255, 255, 255, .06);
            border-radius: var(--radius-card);
            border: 1px solid rgba(255, 255, 255, .15);
            padding: 18px 14px;
            text-align: center;
            color: var(--c-white);
            text-decoration: none !important;
            transition: var(--transition-base);
        }

        .category-card:hover,
        .category-card:focus {
            background-color: rgba(255, 255, 255, .12);
            border-color: var(--c-accent);
            transform: translateY(-4px);
            color: var(--c-white);
        }

        .category-card .cat-icon {
            font-size: 24px;
            color: var(--c-accent);
            margin-bottom: 8px;
        }

        .category-card h4 {
            font-size: 14px;
            font-weight: 650;
            color: var(--c-white);
            margin-bottom: 4px;
        }

        .category-card p {
            font-size: 12px;
            color: rgba(255, 255, 255, .65);
            margin-bottom: 0;
            line-height: 1.6;
        }

        @media screen and (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media screen and (max-width: 640px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .category-card {
                padding: 14px 10px;
            }
        }

        /* News */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            display: flex;
            gap: 20px;
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 18px 20px;
            transition: var(--transition-base);
        }

        .news-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--c-accent);
        }

        .news-date {
            min-width: 64px;
            height: 64px;
            background-color: var(--c-primary);
            border-radius: 8px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--c-white);
            flex-shrink: 0;
        }

        .news-date .month {
            font-size: 11px;
            font-weight: 600;
            color: var(--c-accent);
            line-height: 1.2;
        }

        .news-date .day {
            font-size: 20px;
            font-weight: 800;
            line-height: 1.2;
        }

        .news-content {
            flex: 1;
        }

        .news-content h3 {
            font-size: 16px;
            margin-bottom: 6px;
            color: var(--c-text);
        }

        .news-content p {
            font-size: 14px;
            color: var(--c-text-sub);
            margin-bottom: 8px;
            line-height: 1.7;
        }

        .news-content .btn-text {
            font-size: 13px;
        }

        @media screen and (max-width: 640px) {
            .news-item {
                flex-direction: column;
                gap: 12px;
                padding: 14px;
            }
            .news-date {
                min-width: 100%;
                height: auto;
                flex-direction: row;
                gap: 8px;
                padding: 8px 14px;
            }
            .news-date .day {
                font-size: 16px;
            }
            .news-date .month {
                font-size: 12px;
            }
        }

        /* Brand intro */
        .brand-intro {
            background-color: var(--c-card);
            border-radius: 16px;
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 32px 28px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: center;
        }

        .brand-intro img {
            border-radius: var(--radius-img);
            box-shadow: var(--shadow-card);
            width: 100%;
            object-fit: cover;
        }

        .brand-intro h2 {
            margin-bottom: 14px;
        }

        .brand-intro p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--c-text-sub);
        }

        @media screen and (max-width: 768px) {
            .brand-intro {
                grid-template-columns: 1fr;
                padding: 22px 16px;
            }
            .brand-intro img {
                order: -1;
            }
        }

        /* Data dashboard */
        .data-dashboard {
            background-color: var(--c-secondary);
            padding: 48px 0;
        }

        .data-dashboard .section-title {
            color: var(--c-white);
        }

        .data-dashboard .section-lead {
            color: rgba(255, 255, 255, .75);
        }

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

        .data-card {
            background-color: rgba(255, 255, 255, .07);
            border-radius: var(--radius-card);
            border: 1px solid rgba(255, 255, 255, .15);
            padding: 20px;
            color: var(--c-white);
        }

        .data-card .data-value {
            font-size: 28px;
            font-weight: 800;
            color: var(--c-accent);
            line-height: 1.3;
        }

        .data-card .data-label {
            font-size: 13px;
            color: rgba(255, 255, 255, .75);
        }

        .progress-bar {
            height: 6px;
            background-color: rgba(255, 255, 255, .15);
            border-radius: 3px;
            margin-top: 12px;
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            background-color: var(--c-accent);
            border-radius: 3px;
            transition: width 1s ease;
        }

        @media screen and (max-width: 1024px) {
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media screen and (max-width: 640px) {
            .data-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item.active {
            border-color: var(--c-accent);
            box-shadow: var(--shadow-card-hover);
        }

        .faq-question {
            padding: 18px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 650;
            font-size: 16px;
            color: var(--c-text);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            line-height: 1.6;
            transition: var(--transition-base);
            font-family: var(--font-stack);
        }

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

        .faq-icon {
            font-size: 18px;
            color: var(--c-accent);
            transition: transform .3s ease;
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 20px 18px;
            font-size: 15px;
            color: var(--c-text-sub);
            line-height: 1.85;
            border-top: 1px solid var(--c-line);
            padding-top: 14px;
            margin: 0 20px 0 20px;
            padding-left: 0;
            padding-right: 0;
        }

        @media screen and (max-width: 640px) {
            .faq-question {
                font-size: 15px;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 14px;
                padding: 12px 16px 16px;
                margin: 0;
                border-top: 1px solid var(--c-line);
            }
            .faq-item.active .faq-answer {
                margin: 0;
                padding: 12px 16px 16px;
            }
        }

        /* CTA */
        .cta-section {
            background-color: var(--c-accent);
            padding: 48px 0;
            text-align: center;
            color: var(--c-white);
        }

        .cta-section h2 {
            color: var(--c-white);
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, .85);
            max-width: 600px;
            margin: 0 auto 24px;
            font-size: 16px;
        }

        .cta-section .btn-primary {
            background-color: var(--c-primary);
            border-color: var(--c-primary);
        }

        .cta-section .btn-primary:hover,
        .cta-section .btn-primary:focus {
            background-color: var(--c-white);
            color: var(--c-primary);
            border-color: var(--c-white);
        }

        /* Footer */
        .site-footer {
            background-color: var(--c-primary);
            color: rgba(255, 255, 255, .75);
            padding: 48px 0 24px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            color: var(--c-white);
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .footer-brand .logo-icon {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--c-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
        }

        .footer-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
            line-height: 1.75;
            max-width: 320px;
        }

        .footer-col h4 {
            color: var(--c-white);
            font-size: 15px;
            font-weight: 650;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, .65);
            font-size: 13px;
            text-decoration: none !important;
            transition: var(--transition-base);
        }

        .footer-col ul li a:hover,
        .footer-col ul li a:focus {
            color: var(--c-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, .55);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .65);
            font-size: 12px;
        }

        .footer-bottom a:hover,
        .footer-bottom a:focus {
            color: var(--c-accent);
        }

        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            font-size: 11px;
            color: rgba(255, 255, 255, .5);
        }

        @media screen and (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .site-footer {
                padding: 32px 0 20px;
            }
        }

        @media screen and (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: .01ms !important;
                transition-duration: .01ms !important;
            }
        }

/* roulang page: category3 */
:root{
--c-primary:#0E3D2E;
--c-secondary:#1F5A47;
--c-accent:#C97A3D;
--c-accent-hover:#B06C32;
--c-bg:#F5F2EA;
--c-card:#FFFFFF;
--c-text:#1C1C1C;
--c-text-sub:#4A4A4A;
--c-line:#DDE5DC;
--c-muted:#F0EDE4;
--c-white:#FFFFFF;
--c-focus:#2E8B6B;
--radius-card:12px;
--radius-btn:8px;
--radius-badge:20px;
--radius-img:8px;
--shadow-card:0 2px 12px rgba(14,61,46,.06);
--shadow-card-hover:0 8px 24px rgba(14,61,46,.12);
--shadow-drop:0 12px 32px rgba(0,0,0,.12);
--transition-base:all .25s ease;
--font-stack:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Noto Sans SC",sans-serif;
--section-y:72px;
--section-y-mobile:48px;
--container-max:1200px;
}
html{scroll-behavior:smooth;}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
body{
font-family:var(--font-stack);
color:var(--c-text);
background-color:var(--c-bg);
line-height:1.85;
font-size:16px;
margin:0;
padding:0;
-webkit-font-smoothing:antialiased;
-moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-img);}
a{color:var(--c-accent);text-decoration:none;transition:var(--transition-base);}
a:hover,a:focus{color:var(--c-primary);text-decoration:none;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-focus);outline-offset:2px;}
ul,ol{list-style:none;}
.container{max-width:var(--container-max);margin:0 auto;padding-left:24px;padding-right:24px;}
.section{padding:var(--section-y) 0;position:relative;}
.section-sm{padding:40px 0;}
.section-title{font-size:28px;font-weight:750;margin-bottom:12px;color:var(--c-text);line-height:1.35;}
.section-lead{font-size:17px;color:var(--c-text-sub);max-width:760px;margin-bottom:32px;line-height:1.8;}
.text-accent{color:var(--c-accent);}
.text-primary{color:var(--c-primary);}
.bg-muted{background-color:var(--c-muted);}
.bg-card{background-color:var(--c-card);}
.bg-dark{background-color:var(--c-primary);color:var(--c-white);}
.bg-accent{background-color:var(--c-accent);color:var(--c-white);}
.btn{
display:inline-block;padding:11px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
text-align:center;cursor:pointer;border:2px solid transparent;transition:var(--transition-base);line-height:1.5;text-decoration:none!important;
}
.btn-primary{background-color:var(--c-accent);color:var(--c-white);border-color:var(--c-accent);}
.btn-primary:hover,.btn-primary:focus{background-color:var(--c-primary);color:var(--c-white);border-color:var(--c-primary);transform:translateY(-2px);box-shadow:0 6px 16px rgba(14,61,46,.18);}
.btn-outline{background-color:transparent;color:var(--c-accent);border-color:var(--c-accent);}
.btn-outline:hover,.btn-outline:focus{background-color:var(--c-accent);color:var(--c-white);border-color:var(--c-accent);transform:translateY(-2px);}
.btn-white-outline{background-color:transparent;color:var(--c-white);border-color:rgba(255,255,255,.6);}
.btn-white-outline:hover,.btn-white-outline:focus{background-color:var(--c-accent);color:var(--c-white);border-color:var(--c-accent);}
.btn-text{background:none;border:none;color:var(--c-accent);padding:4px 0;font-weight:600;font-size:15px;}
.btn-text:hover,.btn-text:focus{text-decoration:underline;color:var(--c-primary);}
.badge{
display:inline-block;padding:4px 14px;border-radius:var(--radius-badge);font-size:13px;font-weight:500;
line-height:1.6;background-color:var(--c-muted);color:var(--c-primary);
}
.badge-accent{background-color:var(--c-accent);color:var(--c-white);}
.badge-outline{background-color:transparent;color:var(--c-accent);border:1px solid var(--c-accent);}
.badge-dark{background-color:var(--c-primary);color:var(--c-white);}
.card{
background-color:var(--c-card);border-radius:var(--radius-card);border:1px solid var(--c-line);
box-shadow:var(--shadow-card);padding:24px;transition:var(--transition-base);
}
.card:hover{box-shadow:var(--shadow-card-hover);border-color:var(--c-accent);transform:translateY(-4px);}
.card-plain{background-color:var(--c-card);border-radius:var(--radius-card);border:1px solid var(--c-line);box-shadow:var(--shadow-card);padding:22px;}
/* Header & Nav */
.site-header{
background:var(--c-primary);color:var(--c-white);position:sticky;top:0;z-index:999;
box-shadow:0 2px 12px rgba(0,0,0,.12);
}
.nav-wrapper{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:24px;}
.nav-logo{display:flex;align-items:center;gap:10px;color:var(--c-white);font-size:20px;font-weight:800;letter-spacing:1px;flex-shrink:0;}
.nav-logo:hover,.nav-logo:focus{color:var(--c-white);}
.logo-icon{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--c-accent);color:#fff;font-size:16px;flex-shrink:0;}
.nav-menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;}
.nav-menu>li{position:relative;}
.nav-menu>li>a{
display:block;padding:10px 16px;color:rgba(255,255,255,.85);font-size:15px;font-weight:600;
border-radius:6px;transition:var(--transition-base);white-space:nowrap;
}
.nav-menu>li>a:hover,.nav-menu>li>a:focus{color:var(--c-accent);background:rgba(255,255,255,.08);}
.nav-menu>li.active>a{color:var(--c-accent);border-bottom:2px solid var(--c-accent);border-radius:0;background:none;}
.nav-menu>li.active>a::after{content:'';position:absolute;left:16px;right:16px;bottom:-2px;height:2px;background:var(--c-accent);}
.nav-dropdown{
position:absolute;top:100%;left:0;min-width:240px;background:var(--c-card);color:var(--c-text);
border-radius:8px;box-shadow:var(--shadow-drop);padding:14px 8px;display:none;z-index:200;
border:1px solid var(--c-line);
}
.nav-menu>li:hover .nav-dropdown,.nav-menu>li:focus-within .nav-dropdown{display:block;}
.nav-dropdown p{font-weight:700;font-size:14px;color:var(--c-primary);padding:6px 12px;margin:0;}
.nav-dropdown a{display:block;padding:8px 14px;font-size:14px;color:var(--c-text-sub);border-radius:6px;transition:var(--transition-base);}
.nav-dropdown a:hover,.nav-dropdown a:focus{background:var(--c-muted);color:var(--c-accent);}
.nav-dropdown .divider{height:1px;background:var(--c-line);margin:6px 10px;}
.nav-dropdown .upd{font-size:12px;color:#888;padding:6px 14px;display:block;}
.nav-toggle{
display:none;background:none;border:none;color:var(--c-white);font-size:24px;cursor:pointer;
padding:8px;border-radius:6px;transition:var(--transition-base);
}
.nav-toggle:hover,.nav-toggle:focus{background:rgba(255,255,255,.1);color:var(--c-accent);}
.nav-toggle .fa-bars{font-size:22px;}
/* Mobile nav */
@media (max-width:1023px){
.nav-toggle{display:block;margin-left:auto;}
.nav-wrapper{flex-wrap:wrap;padding:12px 0;}
.nav-menu{
display:none;flex-direction:column;width:100%;background:var(--c-primary);
padding:0 0 16px;border-radius:8px;gap:0;
}
.nav-menu.open{display:flex;}
.nav-menu>li{width:100%;}
.nav-menu>li>a{padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.1);border-radius:0;font-size:15px;}
.nav-menu>li.active>a{border-bottom:1px solid rgba(255,255,255,.1);border-left:3px solid var(--c-accent);}
.nav-menu>li.active>a::after{display:none;}
.nav-dropdown{position:static;min-width:100%;box-shadow:none;background:rgba(255,255,255,.05);border:none;border-radius:0;padding:0 0 8px 20px;display:none;}
.nav-menu>li:hover .nav-dropdown,.nav-menu>li:focus-within .nav-dropdown{display:none;}
.nav-menu>li.dropdown-open .nav-dropdown{display:block;}
.nav-dropdown a{color:rgba(255,255,255,.75);padding:8px 14px;}
.nav-dropdown a:hover,.nav-dropdown a:focus{background:rgba(255,255,255,.1);color:var(--c-accent);}
.nav-dropdown .divider{background:rgba(255,255,255,.15);}
.nav-dropdown .upd{color:rgba(255,255,255,.5);}
}
@media (max-width:640px){
.nav-logo{font-size:17px;}
.nav-menu>li>a{font-size:14px;}
}
/* Breadcrumb */
.breadcrumb-bar{background:var(--c-card);border-bottom:1px solid var(--c-line);padding:14px 0;}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--c-text-sub);}
.breadcrumb a{color:var(--c-text-sub);}
.breadcrumb a:hover,.breadcrumb a:focus{color:var(--c-accent);}
.breadcrumb .sep{color:#aaa;}
.breadcrumb .current{color:var(--c-primary);font-weight:600;}
/* Category Page Header */
.page-header-simple{padding:40px 0 24px;background:var(--c-bg);}
.page-header-simple .h1{font-size:34px;font-weight:850;color:var(--c-text);margin-bottom:10px;line-height:1.35;}
.page-header-simple .page-desc{font-size:17px;color:var(--c-text-sub);max-width:800px;line-height:1.85;}
/* News List */
.news-list{display:flex;flex-direction:column;gap:20px;}
.news-item{
background:var(--c-card);border-radius:var(--radius-card);border:1px solid var(--c-line);
box-shadow:var(--shadow-card);padding:22px 24px;display:flex;gap:20px;transition:var(--transition-base);
}
.news-item:hover{box-shadow:var(--shadow-card-hover);border-color:var(--c-accent);}
.news-item .news-date{
flex-shrink:0;width:72px;height:72px;background:var(--c-primary);color:#fff;
border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.2;
}
.news-item .news-date .year{font-size:12px;opacity:.85;}
.news-item .news-date .month-day{font-size:20px;font-weight:800;}
.news-item .news-date .week{font-size:12px;opacity:.8;}
.news-item .news-content{flex:1;min-width:0;}
.news-item .news-title{font-size:18px;font-weight:750;margin-bottom:6px;color:var(--c-text);line-height:1.4;}
.news-item .news-title a{color:var(--c-text);}
.news-item .news-title a:hover,.news-item .news-title a:focus{color:var(--c-accent);}
.news-item .news-excerpt{font-size:15px;color:var(--c-text-sub);margin-bottom:10px;line-height:1.8;}
.news-item .news-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:#888;}
.news-item .news-meta .badge{font-size:12px;}
.news-item .btn-text{font-size:14px;padding:1px 0;}
/* Depth Content */
.depth-content{background:var(--c-card);border-radius:var(--radius-card);border:1px solid var(--c-line);box-shadow:var(--shadow-card);padding:32px 36px;}
.depth-content h3{font-size:22px;font-weight:750;margin:28px 0 12px;color:var(--c-primary);line-height:1.4;}
.depth-content h3:first-child{margin-top:0;}
.depth-content p{font-size:16px;color:var(--c-text);margin-bottom:14px;line-height:1.9;}
.depth-content ul{list-style:disc;padding-left:22px;margin-bottom:16px;}
.depth-content ul li{font-size:16px;color:var(--c-text);margin-bottom:6px;line-height:1.85;}
.depth-content blockquote{
border-left:4px solid var(--c-accent);background:var(--c-muted);padding:14px 18px;margin:16px 0;
border-radius:0 8px 8px 0;font-size:15px;color:var(--c-text-sub);line-height:1.8;
}
.depth-content img{margin:16px 0 20px;}
/* Data cards */
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.data-card{
background:var(--c-primary);border-radius:var(--radius-card);padding:24px 20px;text-align:center;
color:var(--c-white);transition:var(--transition-base);border:1px solid rgba(255,255,255,.1);
}
.data-card:hover{transform:translateY(-4px);box-shadow:0 10px 28px rgba(14,61,46,.25);}
.data-card .num{font-size:36px;font-weight:850;color:var(--c-accent);line-height:1.2;}
.data-card .label{font-size:14px;color:rgba(255,255,255,.85);margin-top:4px;}
.data-card .sub{font-size:12px;color:rgba(255,255,255,.6);margin-top:2px;}
/* Related articles */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.related-card{
background:var(--c-card);border-radius:var(--radius-card);border:1px solid var(--c-line);
box-shadow:var(--shadow-card);padding:20px;display:flex;flex-direction:column;gap:10px;transition:var(--transition-base);
}
.related-card:hover{box-shadow:var(--shadow-card-hover);border-color:var(--c-accent);transform:translateY(-4px);}
.related-card img{width:100%;height:160px;object-fit:cover;border-radius:var(--radius-img);}
.related-card .r-title{font-size:16px;font-weight:700;color:var(--c-text);line-height:1.4;}
.related-card .r-excerpt{font-size:14px;color:var(--c-text-sub);line-height:1.7;}
/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius-card);overflow:hidden;transition:var(--transition-base);}
.faq-item:hover{border-color:var(--c-accent);}
.faq-question{
width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px;
padding:16px 20px;font-size:16px;font-weight:700;color:var(--c-text);background:none;border:none;cursor:pointer;
text-align:left;line-height:1.5;transition:var(--transition-base);
}
.faq-question:hover,.faq-question:focus{color:var(--c-accent);}
.faq-question .faq-icon{
flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--c-muted);color:var(--c-text-sub);
display:inline-flex;align-items:center;justify-content:center;font-size:14px;transition:var(--transition-base);
}
.faq-question:hover .faq-icon,.faq-question:focus .faq-icon{background:var(--c-accent);color:#fff;}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;padding:0 20px;}
.faq-item.active .faq-answer{max-height:600px;padding:0 20px 16px;}
.faq-item.active .faq-icon{background:var(--c-accent);color:#fff;transform:rotate(45deg);}
.faq-answer p{font-size:15px;color:var(--c-text-sub);line-height:1.85;margin:0;}
/* CTA */
.cta-section{background:var(--c-accent);border-radius:var(--radius-card);padding:40px 36px;text-align:center;color:var(--c-white);}
.cta-section h2{font-size:26px;font-weight:800;color:var(--c-white);margin-bottom:8px;}
.cta-section p{font-size:16px;color:rgba(255,255,255,.9);max-width:600px;margin:0 auto 22px;line-height:1.8;}
.cta-section .btn-white-outline{font-size:16px;padding:12px 28px;}
/* Footer */
.site-footer{background:var(--c-primary);color:rgba(255,255,255,.85);padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;padding-bottom:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:10px;}
.footer-brand .logo-icon{background:var(--c-accent);width:34px;height:34px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:16px;flex-shrink:0;}
.footer-desc{font-size:14px;color:rgba(255,255,255,.65);line-height:1.8;max-width:320px;}
.footer-col h4{font-size:16px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-col ul li{margin-bottom:8px;}
.footer-col ul li a{color:rgba(255,255,255,.7);font-size:14px;transition:var(--transition-base);}
.footer-col ul li a:hover,.footer-col ul li a:focus{color:var(--c-accent);}
.footer-col ul li{color:rgba(255,255,255,.55);font-size:14px;}
.footer-bottom{
display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
padding:18px 0;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover,.footer-bottom a:focus{color:var(--c-accent);}
.footer-legal{display:flex;flex-wrap:wrap;gap:12px;}
/* Responsive */
@media (max-width:1023px){
.footer-grid{grid-template-columns:1fr 1fr;}
.data-grid{grid-template-columns:repeat(2,1fr);}
.related-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:768px){
.section{padding:var(--section-y-mobile) 0;}
.section-title{font-size:24px;}
.depth-content{padding:22px 20px;}
.news-item{flex-direction:column;gap:12px;padding:18px;}
.news-item .news-date{width:60px;height:56px;border-radius:8px;}
.news-item .news-date .month-day{font-size:16px;}
.related-grid{grid-template-columns:1fr;}
.cta-section{padding:28px 20px;}
}
@media (max-width:639px){
.data-grid{grid-template-columns:1fr 1fr;gap:12px;}
.data-card{padding:16px 12px;}
.data-card .num{font-size:28px;}
.footer-grid{grid-template-columns:1fr;}
.footer-bottom{flex-direction:column;text-align:center;}
.page-header-simple .h1{font-size:28px;}
.news-item .news-content{min-width:0;}
}

/* roulang page: category2 */
:root {
            --c-primary: #0E3D2E;
            --c-secondary: #1F5A47;
            --c-accent: #C97A3D;
            --c-accent-hover: #B06C32;
            --c-bg: #F5F2EA;
            --c-card: #FFFFFF;
            --c-text: #1C1C1C;
            --c-text-sub: #4A4A4A;
            --c-line: #DDE5DC;
            --c-muted: #F0EDE4;
            --c-white: #FFFFFF;
            --c-focus: #2E8B6B;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 20px;
            --radius-img: 8px;
            --shadow-card: 0 2px 12px rgba(14, 61, 46, .06);
            --shadow-card-hover: 0 8px 24px rgba(14, 61, 46, .12);
            --shadow-drop: 0 12px 32px rgba(0, 0, 0, .12);
            --transition-base: all .25s ease;
            --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Noto Sans SC", sans-serif;
            --section-y: 72px;
            --section-y-mobile: 48px;
            --container-max: 1200px;
        }

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

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

        body {
            font-family: var(--font-stack);
            color: var(--c-text);
            background-color: var(--c-bg);
            line-height: 1.85;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--c-accent);
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover,
        a:focus {
            color: var(--c-primary);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--c-focus);
            outline-offset: 2px;
        }

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

        .section {
            padding: var(--section-y) 0;
            position: relative;
        }

        .section-title {
            font-size: 28px;
            font-weight: 750;
            margin-bottom: 12px;
            color: var(--c-text);
            line-height: 1.35;
        }

        .section-lead {
            font-size: 17px;
            color: var(--c-text-sub);
            max-width: 720px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .text-accent {
            color: var(--c-accent);
        }
        .text-primary {
            color: var(--c-primary);
        }
        .bg-muted {
            background-color: var(--c-muted);
        }
        .bg-card {
            background-color: var(--c-card);
        }
        .bg-primary {
            background-color: var(--c-primary);
        }
        .bg-accent {
            background-color: var(--c-accent);
        }

        .btn {
            display: inline-block;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            text-align: center;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition-base);
            line-height: 1.5;
            text-decoration: none !important;
        }

        .btn-primary {
            background-color: var(--c-accent);
            color: var(--c-white);
            border-color: var(--c-accent);
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--c-primary);
            color: var(--c-white);
            border-color: var(--c-primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(14, 61, 46, .18);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--c-accent);
            border-color: var(--c-accent);
        }
        .btn-outline:hover,
        .btn-outline:focus {
            background-color: var(--c-accent);
            color: var(--c-white);
            border-color: var(--c-accent);
            transform: translateY(-2px);
        }

        .btn-white-outline {
            background-color: transparent;
            color: var(--c-white);
            border-color: rgba(255, 255, 255, .6);
        }
        .btn-white-outline:hover,
        .btn-white-outline:focus {
            background-color: var(--c-accent);
            color: var(--c-white);
            border-color: var(--c-accent);
        }

        .btn-text {
            background: none;
            border: none;
            color: var(--c-accent);
            padding: 4px 0;
            font-weight: 600;
            font-size: 15px;
        }
        .btn-text:hover,
        .btn-text:focus {
            text-decoration: underline;
            color: var(--c-primary);
        }

        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 500;
            line-height: 1.6;
            background-color: var(--c-muted);
            color: var(--c-primary);
        }
        .badge-accent {
            background-color: var(--c-accent);
            color: var(--c-white);
        }

        .card {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: var(--transition-base);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--c-accent);
            transform: translateY(-4px);
        }

        .card-plain {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 22px;
        }

        /* Header / Navigation */
        .site-header {
            background-color: var(--c-primary);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, .14);
        }

        .nav-wrapper {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            position: relative;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--c-white) !important;
            font-weight: 750;
            font-size: 20px;
            letter-spacing: 1px;
        }
        .nav-logo:hover {
            color: #DDE5DC !important;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background-color: var(--c-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            color: var(--c-white);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--c-white);
            font-size: 24px;
            cursor: pointer;
            padding: 8px;
            border-radius: 6px;
        }
        .nav-toggle:hover {
            background-color: rgba(255, 255, 255, .1);
        }

        .nav-menu {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            align-items: center;
            gap: 4px;
        }

        .nav-menu > li {
            position: relative;
            padding: 0 6px;
        }

        .nav-menu > li > a {
            color: rgba(255, 255, 255, .88);
            font-size: 15px;
            font-weight: 550;
            padding: 10px 12px;
            display: block;
            border-radius: 6px;
            transition: var(--transition-base);
        }
        .nav-menu > li > a:hover,
        .nav-menu > li > a:focus {
            color: var(--c-white);
            background-color: rgba(255, 255, 255, .08);
        }
        .nav-menu > li.active > a {
            color: var(--c-accent);
        }
        .nav-menu > li.active > a::after {
            content: '';
            display: block;
            height: 2px;
            background-color: var(--c-accent);
            margin-top: 2px;
            border-radius: 1px;
        }

        .nav-dropdown {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 240px;
            background-color: var(--c-white);
            border-radius: 8px;
            box-shadow: var(--shadow-drop);
            padding: 12px 0;
            z-index: 200;
            list-style: none;
            margin: 0;
        }
        .nav-menu > li:hover .nav-dropdown {
            display: block;
        }
        .nav-dropdown li a {
            display: block;
            padding: 8px 18px;
            color: var(--c-text);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition-base);
        }
        .nav-dropdown li a:hover {
            background-color: var(--c-muted);
            color: var(--c-accent);
        }
        .nav-dropdown li.dropdown-header {
            font-size: 12px;
            font-weight: 700;
            color: var(--c-text-sub);
            text-transform: uppercase;
            letter-spacing: .5px;
            padding: 6px 18px 4px;
        }
        .nav-dropdown li.dropdown-divider {
            height: 1px;
            background-color: var(--c-line);
            margin: 6px 0;
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background-color: #EAE7DD;
            border-bottom: 1px solid var(--c-line);
            padding: 14px 0;
            font-size: 14px;
            color: var(--c-text-sub);
        }
        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb-bar a {
            color: var(--c-primary);
            font-weight: 550;
        }
        .breadcrumb-bar a:hover {
            color: var(--c-accent);
        }
        .breadcrumb-sep {
            color: #B0B0B0;
            margin: 0 2px;
        }

        /* Category header */
        .category-header {
            background: linear-gradient(135deg, #0E3D2E 0%, #1F5A47 55%, #1A4D3C 100%);
            color: var(--c-white);
            padding: 48px 0 42px;
            position: relative;
            overflow: hidden;
        }
        .category-header::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(201, 122, 61, .28) 0%, rgba(14, 61, 46, 0) 70%);
            pointer-events: none;
        }
        .category-header .container {
            position: relative;
            z-index: 1;
        }
        .category-header h1 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--c-white);
            letter-spacing: .5px;
            line-height: 1.3;
        }
        .category-header .header-lead {
            font-size: 17px;
            color: rgba(255, 255, 255, .82);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* Article list */
        .article-list-card {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 22px 24px;
            transition: var(--transition-base);
            margin-bottom: 18px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px 20px;
            align-items: flex-start;
        }
        .article-list-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--c-accent);
        }
        .article-list-card .article-thumb {
            flex: 0 0 120px;
            border-radius: var(--radius-img);
            overflow: hidden;
            height: 80px;
        }
        .article-list-card .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-list-card .article-body {
            flex: 1;
            min-width: 0;
        }
        .article-list-card .article-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--c-text);
            margin-bottom: 6px;
            line-height: 1.45;
        }
        .article-list-card .article-title a {
            color: var(--c-text);
        }
        .article-list-card .article-title a:hover {
            color: var(--c-accent);
        }
        .article-list-card .article-summary {
            font-size: 15px;
            color: var(--c-text-sub);
            line-height: 1.75;
            margin-bottom: 8px;
        }
        .article-list-card .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px 16px;
            font-size: 13px;
            color: #7A7A7A;
        }
        .article-list-card .article-meta .badge {
            font-size: 12px;
            padding: 2px 10px;
        }

        /* More button area */
        .more-wrapper {
            text-align: center;
            padding: 12px 0 0;
        }

        /* Deep intro section */
        .deep-intro {
            background-color: var(--c-muted);
        }
        .deep-intro .intro-body {
            font-size: 16px;
            line-height: 1.9;
            color: var(--c-text-sub);
        }
        .deep-intro .intro-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--c-primary);
            margin: 28px 0 10px;
            line-height: 1.4;
        }
        .deep-intro .intro-body p {
            margin-bottom: 14px;
        }
        .deep-intro .intro-body ul {
            padding-left: 22px;
            margin: 10px 0 16px;
        }
        .deep-intro .intro-body li {
            margin-bottom: 6px;
        }
        .deep-intro .intro-body blockquote {
            border-left: 4px solid var(--c-accent);
            padding: 14px 20px;
            background-color: var(--c-card);
            border-radius: 0 8px 8px 0;
            margin: 18px 0;
            font-style: italic;
            color: var(--c-primary);
            font-size: 15px;
        }
        .deep-intro .intro-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            margin-top: 20px;
        }

        /* Data support cards */
        .data-card-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
        }
        .data-stat-card {
            flex: 1 1 calc(25% - 18px);
            min-width: 180px;
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 20px 22px;
            text-align: center;
            transition: var(--transition-base);
        }
        .data-stat-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--c-accent);
        }
        .data-stat-card .stat-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--c-primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .data-stat-card .stat-label {
            font-size: 14px;
            color: var(--c-text-sub);
            font-weight: 550;
        }
        .data-stat-card .stat-icon {
            font-size: 26px;
            color: var(--c-accent);
            margin-bottom: 8px;
        }

        /* Related articles */
        .related-card {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 18px 20px;
            transition: var(--transition-base);
            height: 100%;
        }
        .related-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--c-accent);
            transform: translateY(-3px);
        }
        .related-card .related-title {
            font-size: 16px;
            font-weight: 650;
            color: var(--c-text);
            line-height: 1.5;
            margin-bottom: 6px;
        }
        .related-card .related-title a {
            color: var(--c-text);
        }
        .related-card .related-title a:hover {
            color: var(--c-accent);
        }
        .related-card .related-date {
            font-size: 13px;
            color: #999;
        }

        /* FAQ */
        .faq-item {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 650;
            color: var(--c-text);
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--transition-base);
            font-family: var(--font-stack);
            line-height: 1.6;
        }
        .faq-question:hover {
            background-color: var(--c-muted);
        }
        .faq-icon {
            flex-shrink: 0;
            font-size: 18px;
            color: var(--c-accent);
            transition: var(--transition-base);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            display: none;
            padding: 0 22px 18px;
            font-size: 15px;
            color: var(--c-text-sub);
            line-height: 1.85;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #C97A3D 0%, #B06C32 60%, #9A5A2A 100%);
            color: var(--c-white);
            padding: 56px 0;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 26px;
            font-weight: 750;
            margin-bottom: 10px;
            color: var(--c-white);
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, .88);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.75;
        }

        /* Footer */
        .site-footer {
            background-color: var(--c-primary);
            color: rgba(255, 255, 255, .85);
            padding: 52px 0 24px;
            font-size: 14px;
            line-height: 1.7;
        }
        .footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 32px 40px;
            margin-bottom: 32px;
        }
        .footer-grid > div:first-child {
            flex: 1 1 280px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--c-white);
            margin-bottom: 10px;
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            line-height: 1.75;
            max-width: 320px;
        }
        .footer-col {
            flex: 1 1 140px;
            min-width: 120px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--c-white);
            margin-bottom: 14px;
            letter-spacing: .3px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            transition: var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--c-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px 20px;
            font-size: 13px;
            color: rgba(255, 255, 255, .55);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, .6);
        }
        .footer-bottom a:hover {
            color: var(--c-accent);
        }
        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 16px;
            align-items: center;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .data-stat-card {
                flex: 1 1 calc(50% - 18px);
            }
            .section {
                padding: var(--section-y-mobile) 0;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: var(--c-primary);
                flex-direction: column;
                align-items: stretch;
                padding: 12px 24px 20px;
                box-shadow: 0 16px 32px rgba(0, 0, 0, .2);
                max-height: 80vh;
                overflow-y: auto;
                gap: 0;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu > li {
                padding: 0;
                border-bottom: 1px solid rgba(255, 255, 255, .08);
            }
            .nav-menu > li > a {
                padding: 14px 8px;
                font-size: 16px;
            }
            .nav-dropdown {
                display: none;
                position: static;
                background-color: transparent;
                box-shadow: none;
                border-radius: 0;
                padding: 4px 16px 10px;
                min-width: auto;
            }
            .nav-menu > li:hover .nav-dropdown {
                display: none;
            }
            .nav-menu > li.dropdown-open .nav-dropdown {
                display: block;
            }
            .nav-dropdown li a {
                color: rgba(255, 255, 255, .7);
                padding: 8px 12px;
            }
            .nav-dropdown li a:hover {
                background-color: rgba(255, 255, 255, .08);
                color: var(--c-accent);
            }
            .nav-dropdown li.dropdown-header {
                color: rgba(255, 255, 255, .4);
            }
            .nav-dropdown li.dropdown-divider {
                background-color: rgba(255, 255, 255, .12);
            }

            .category-header h1 {
                font-size: 27px;
            }
            .category-header .header-lead {
                font-size: 15px;
            }
            .article-list-card .article-thumb {
                flex: 0 0 100%;
                height: 160px;
            }
            .data-stat-card {
                flex: 1 1 100%;
            }
            .footer-grid {
                flex-direction: column;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .nav-wrapper {
                padding: 0 16px;
            }
            .section-title {
                font-size: 23px;
            }
            .article-list-card {
                padding: 16px 18px;
            }
            .article-list-card .article-title {
                font-size: 16px;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-answer {
                padding: 0 18px 14px;
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --c-primary: #0E3D2E;
            --c-secondary: #1F5A47;
            --c-accent: #C97A3D;
            --c-accent-hover: #B06C32;
            --c-bg: #F5F2EA;
            --c-card: #FFFFFF;
            --c-text: #1C1C1C;
            --c-text-sub: #4A4A4A;
            --c-line: #DDE5DC;
            --c-muted: #F0EDE4;
            --c-white: #FFFFFF;
            --c-focus: #2E8B6B;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 20px;
            --radius-img: 8px;
            --shadow-card: 0 2px 12px rgba(14, 61, 46, .06);
            --shadow-card-hover: 0 8px 24px rgba(14, 61, 46, .12);
            --shadow-drop: 0 12px 32px rgba(0, 0, 0, .12);
            --transition-base: all .25s ease;
            --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Noto Sans SC", sans-serif;
            --section-y: 72px;
            --section-y-mobile: 48px;
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            color: var(--c-text);
            background-color: var(--c-bg);
            line-height: 1.85;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--c-accent);
            text-decoration: none;
            transition: var(--transition-base);
        }

        a:hover,
        a:focus {
            color: var(--c-primary);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--c-focus);
            outline-offset: 2px;
        }

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

        .section {
            padding: var(--section-y) 0;
            position: relative;
        }

        .section-title {
            font-size: 28px;
            font-weight: 750;
            margin-bottom: 12px;
            color: var(--c-text);
            line-height: 1.35;
        }

        .section-lead {
            font-size: 17px;
            color: var(--c-text-sub);
            max-width: 720px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .text-accent {
            color: var(--c-accent);
        }
        .text-primary {
            color: var(--c-primary);
        }
        .bg-muted {
            background-color: var(--c-muted);
        }
        .bg-card {
            background-color: var(--c-card);
        }

        .btn {
            display: inline-block;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            text-align: center;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition-base);
            line-height: 1.5;
            text-decoration: none !important;
        }
        .btn-primary {
            background-color: var(--c-accent);
            color: var(--c-white);
            border-color: var(--c-accent);
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--c-primary);
            color: var(--c-white);
            border-color: var(--c-primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(14, 61, 46, .18);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--c-accent);
            border-color: var(--c-accent);
        }
        .btn-outline:hover,
        .btn-outline:focus {
            background-color: var(--c-accent);
            color: var(--c-white);
            border-color: var(--c-accent);
            transform: translateY(-2px);
        }
        .btn-white-outline {
            background-color: transparent;
            color: var(--c-white);
            border-color: rgba(255, 255, 255, .6);
        }
        .btn-white-outline:hover,
        .btn-white-outline:focus {
            background-color: var(--c-accent);
            color: var(--c-white);
            border-color: var(--c-accent);
        }
        .btn-text {
            background: none;
            border: none;
            color: var(--c-accent);
            padding: 4px 0;
            font-weight: 600;
            font-size: 15px;
        }
        .btn-text:hover,
        .btn-text:focus {
            text-decoration: underline;
            color: var(--c-primary);
        }

        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 500;
            line-height: 1.6;
            background-color: var(--c-muted);
            color: var(--c-primary);
        }
        .badge-accent {
            background-color: var(--c-accent);
            color: var(--c-white);
        }

        .card {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: var(--transition-base);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--c-accent);
            transform: translateY(-4px);
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            background-color: var(--c-primary);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 16px rgba(0, 0, 0, .18);
        }
        .nav-wrapper {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            position: relative;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--c-white);
            font-size: 20px;
            font-weight: 800;
            letter-spacing: .5px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .nav-logo:hover,
        .nav-logo:focus {
            color: var(--c-white);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background-color: rgba(255, 255, 255, .12);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--c-accent);
            border: 1px solid rgba(255, 255, 255, .18);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, .35);
            color: var(--c-white);
            font-size: 22px;
            width: 44px;
            height: 40px;
            border-radius: 8px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
        }
        .nav-toggle:hover {
            background-color: rgba(255, 255, 255, .12);
            border-color: var(--c-white);
        }
        .nav-menu {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            align-items: center;
            gap: 4px;
        }
        .nav-menu > li {
            position: relative;
            margin: 0;
        }
        .nav-menu > li > a {
            display: block;
            padding: 10px 18px;
            color: rgba(255, 255, 255, .88);
            font-size: 15px;
            font-weight: 600;
            border-radius: 6px;
            text-decoration: none;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-menu > li > a:hover,
        .nav-menu > li > a:focus {
            color: var(--c-white);
            background-color: rgba(255, 255, 255, .1);
        }
        .nav-menu > li.active > a {
            color: var(--c-accent);
            border-bottom: 2px solid var(--c-accent);
            border-radius: 6px 6px 0 0;
        }
        .nav-menu > li.has-dropdown > a::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            margin-left: 6px;
            font-size: 13px;
        }
        .dropdown-panel {
            position: absolute;
            top: calc(100% + 8px);
            left: 0;
            min-width: 240px;
            background: var(--c-white);
            border-radius: 8px;
            box-shadow: var(--shadow-drop);
            list-style: none;
            margin: 0;
            padding: 8px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all .25s ease;
            z-index: 200;
        }
        .nav-menu > li.has-dropdown:hover .dropdown-panel,
        .nav-menu > li.has-dropdown:focus-within .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .dropdown-panel li {
            margin: 0;
        }
        .dropdown-panel li a {
            display: block;
            padding: 10px 18px;
            color: var(--c-text);
            font-size: 14px;
            font-weight: 500;
            text-decoration: none;
            transition: var(--transition-base);
        }
        .dropdown-panel li a:hover {
            background-color: var(--c-muted);
            color: var(--c-accent);
            padding-left: 22px;
        }
        .dropdown-divider {
            height: 1px;
            background-color: var(--c-line);
            margin: 6px 14px;
        }
        .dropdown-note {
            padding: 6px 18px;
            color: #888;
            font-size: 12px;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            background-color: var(--c-white);
            border-bottom: 1px solid var(--c-line);
            padding: 16px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
            font-size: 14px;
            color: var(--c-text-sub);
            margin: 0;
            list-style: none;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .breadcrumb a {
            color: var(--c-accent);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--c-primary);
        }
        .breadcrumb-sep {
            color: #aaa;
            font-size: 12px;
            margin: 0 4px;
        }

        /* ========== CATEGORY PAGE HERO ========== */
        .category-header {
            background: linear-gradient(135deg, var(--c-primary) 0%, #1a4d3a 100%);
            padding: 56px 0 48px;
            color: var(--c-white);
            border-bottom: 4px solid var(--c-accent);
        }
        .category-header h1 {
            font-size: 36px;
            font-weight: 850;
            margin: 0 0 12px;
            color: var(--c-white);
            line-height: 1.3;
        }
        .category-header .category-tagline {
            font-size: 18px;
            color: rgba(255, 255, 255, .82);
            max-width: 720px;
            line-height: 1.8;
            margin: 0;
        }

        /* ========== LIST CARD ========== */
        .list-card {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 24px 28px;
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            align-items: flex-start;
            transition: var(--transition-base);
            margin-bottom: 20px;
        }
        .list-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--c-accent);
            transform: translateY(-2px);
        }
        .list-card-date {
            background-color: var(--c-primary);
            color: var(--c-white);
            border-radius: 8px;
            padding: 8px 12px;
            text-align: center;
            min-width: 76px;
            flex-shrink: 0;
            font-size: 13px;
            font-weight: 600;
            line-height: 1.4;
        }
        .list-card-date .day {
            font-size: 22px;
            font-weight: 800;
            display: block;
        }
        .list-card-body {
            flex: 1;
            min-width: 0;
        }
        .list-card-badge-row {
            display: flex;
            gap: 8px;
            margin-bottom: 8px;
            flex-wrap: wrap;
        }
        .list-card-title {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 8px;
            line-height: 1.45;
        }
        .list-card-title a {
            color: var(--c-text);
            text-decoration: none;
        }
        .list-card-title a:hover {
            color: var(--c-accent);
        }
        .list-card-summary {
            font-size: 15px;
            color: var(--c-text-sub);
            line-height: 1.8;
            margin: 0 0 10px;
        }
        .list-card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: #888;
        }
        .list-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== MORE BUTTON ========== */
        .more-entry {
            text-align: center;
            margin-top: 12px;
            padding: 20px 0 0;
            border-top: 1px dashed var(--c-line);
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content {
            background-color: var(--c-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 40px 48px;
        }
        .deep-content h2 {
            font-size: 26px;
            font-weight: 750;
            margin: 0 0 20px;
            color: var(--c-text);
        }
        .deep-content h3 {
            font-size: 19px;
            font-weight: 700;
            margin: 28px 0 10px;
            color: var(--c-primary);
            line-height: 1.45;
        }
        .deep-content p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--c-text-sub);
            margin: 0 0 16px;
        }
        .deep-content img {
            border-radius: var(--radius-img);
            margin: 18px 0;
            width: 100%;
            object-fit: cover;
        }
        .deep-content blockquote {
            border-left: 4px solid var(--c-accent);
            padding: 14px 20px;
            margin: 18px 0;
            background-color: var(--c-muted);
            border-radius: 0 8px 8px 0;
            color: var(--c-text);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ========== DATA STATS ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-item {
            background-color: var(--c-primary);
            color: var(--c-white);
            border-radius: var(--radius-card);
            padding: 26px 20px;
            text-align: center;
            border-bottom: 4px solid var(--c-accent);
            transition: var(--transition-base);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 28px rgba(14, 61, 46, .25);
        }
        .stat-number {
            font-size: 34px;
            font-weight: 850;
            display: block;
            line-height: 1.3;
            color: var(--c-accent);
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .78);
            margin-top: 6px;
            display: block;
        }

        /* ========== RELATED ARTICLES ========== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .related-card {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 20px;
            transition: var(--transition-base);
        }
        .related-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--c-accent);
            transform: translateY(-3px);
        }
        .related-card .related-badge {
            margin-bottom: 10px;
        }
        .related-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 6px;
            line-height: 1.5;
        }
        .related-card h4 a {
            color: var(--c-text);
        }
        .related-card h4 a:hover {
            color: var(--c-accent);
        }
        .related-card p {
            font-size: 14px;
            color: var(--c-text-sub);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background-color: var(--c-card);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 650;
            color: var(--c-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background-color: var(--c-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--c-accent);
            transition: var(--transition-base);
        }
        .faq-item[open] summary .faq-icon {
            background-color: var(--c-accent);
            color: var(--c-white);
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 16px;
            color: var(--c-text-sub);
            line-height: 1.9;
            border-top: 1px solid var(--c-line);
            padding-top: 16px;
            margin: 0 24px 4px;
        }
        .faq-item[open] {
            border-color: var(--c-accent);
            box-shadow: var(--shadow-card-hover);
        }

        /* ========== CTA / SUBSCRIBE ========== */
        .cta-band {
            background: linear-gradient(135deg, var(--c-accent) 0%, #d68b4a 100%);
            border-radius: var(--radius-card);
            padding: 40px 32px;
            text-align: center;
            color: var(--c-white);
            position: relative;
            overflow: hidden;
        }
        .cta-band::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, .08);
            border-radius: 50%;
        }
        .cta-band::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            background: rgba(255, 255, 255, .06);
            border-radius: 50%;
        }
        .cta-band h3 {
            font-size: 24px;
            font-weight: 800;
            margin: 0 0 10px;
            position: relative;
            z-index: 1;
        }
        .cta-band p {
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto 24px;
            opacity: .9;
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }
        .cta-band .btn {
            position: relative;
            z-index: 1;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background-color: var(--c-primary);
            color: rgba(255, 255, 255, .82);
            padding: 48px 0 24px;
            margin-top: 64px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, .12);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 750;
            color: var(--c-white);
            margin-bottom: 12px;
        }
        .footer-brand .logo-icon {
            background-color: rgba(255, 255, 255, .1);
            border-color: rgba(255, 255, 255, .15);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .6);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--c-white);
            margin: 0 0 14px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            text-decoration: none;
            transition: var(--transition-base);
        }
        .footer-col ul li a:hover,
        .footer-col ul li a:focus {
            color: var(--c-accent);
        }
        .footer-bottom {
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, .55);
        }
        .footer-legal {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, .65);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: var(--c-accent);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .deep-content {
                padding: 30px 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-y: 48px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .nav-wrapper {
                padding: 0 16px;
                flex-wrap: wrap;
                min-height: 60px;
            }
            .nav-toggle {
                display: flex;
                margin-left: auto;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background-color: var(--c-primary);
                border-top: 1px solid rgba(255, 255, 255, .12);
                padding: 12px 0;
                max-height: 70vh;
                overflow-y: auto;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu > li {
                width: 100%;
            }
            .nav-menu > li > a {
                padding: 12px 16px;
                font-size: 16px;
                border-radius: 0;
            }
            .nav-menu > li.active > a {
                border-bottom: none;
                border-left: 3px solid var(--c-accent);
                background-color: rgba(255, 255, 255, .06);
            }
            .nav-menu > li.has-dropdown > a::after {
                content: '\f067';
                float: right;
            }
            .dropdown-panel {
                position: static;
                min-width: 100%;
                background: rgba(255, 255, 255, .05);
                box-shadow: none;
                border-radius: 0;
                opacity: 1;
                visibility: visible;
                transform: none;
                display: none;
                padding: 0;
            }
            .nav-menu > li.has-dropdown.open .dropdown-panel {
                display: block;
            }
            .dropdown-panel li a {
                color: rgba(255, 255, 255, .8);
                padding: 10px 28px;
                font-size: 14px;
            }
            .dropdown-panel li a:hover {
                background-color: rgba(255, 255, 255, .08);
                color: var(--c-accent);
                padding-left: 32px;
            }
            .dropdown-divider {
                background-color: rgba(255, 255, 255, .15);
            }
            .dropdown-note {
                color: rgba(255, 255, 255, .5);
            }

            .category-header {
                padding: 36px 0 32px;
            }
            .category-header h1 {
                font-size: 28px;
            }
            .category-header .category-tagline {
                font-size: 16px;
            }
            .list-card {
                padding: 20px;
                flex-direction: column;
                gap: 12px;
            }
            .list-card-date {
                min-width: auto;
                display: flex;
                align-items: center;
                gap: 8px;
                padding: 6px 14px;
            }
            .list-card-date .day {
                font-size: 18px;
            }
            .deep-content {
                padding: 22px 18px;
            }
            .deep-content h2 {
                font-size: 22px;
            }
            .deep-content h3 {
                font-size: 17px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-number {
                font-size: 26px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 15px;
            }
            .section-title {
                font-size: 23px;
            }
            .section-lead {
                font-size: 15px;
            }
            .category-header h1 {
                font-size: 24px;
            }
            .stats-row {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .stat-item {
                padding: 18px 14px;
            }
            .stat-number {
                font-size: 22px;
            }
            .cta-band {
                padding: 28px 18px;
            }
            .cta-band h3 {
                font-size: 20px;
            }
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .list-card {
                padding: 16px;
            }
            .list-card-title {
                font-size: 16px;
            }
            .btn {
                padding: 9px 18px;
                font-size: 14px;
            }
            .breadcrumb {
                font-size: 12px;
            }
            .deep-content img {
                margin: 12px 0;
            }
            .faq-item summary {
                padding: 14px 16px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 16px 16px;
                margin: 0 16px 4px;
                font-size: 15px;
            }
        }

/* roulang page: category5 */
:root {
            --c-primary: #0E3D2E;
            --c-secondary: #1F5A47;
            --c-accent: #C97A3D;
            --c-accent-hover: #B06C32;
            --c-bg: #F5F2EA;
            --c-card: #FFFFFF;
            --c-text: #1C1C1C;
            --c-text-sub: #4A4A4A;
            --c-line: #DDE5DC;
            --c-muted: #F0EDE4;
            --c-white: #FFFFFF;
            --c-focus: #2E8B6B;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 20px;
            --radius-img: 8px;
            --shadow-card: 0 2px 12px rgba(14, 61, 46, .06);
            --shadow-card-hover: 0 8px 24px rgba(14, 61, 46, .12);
            --shadow-drop: 0 12px 32px rgba(0, 0, 0, .12);
            --transition-base: all .25s ease;
            --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Noto Sans SC", sans-serif;
            --section-y: 72px;
            --section-y-mobile: 48px;
            --container-max: 1200px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            color: var(--c-text);
            background-color: var(--c-bg);
            line-height: 1.85;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--c-accent);
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:hover,
        a:focus {
            color: var(--c-primary);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--c-focus);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: var(--section-y) 0;
            position: relative;
        }
        .section-title {
            font-size: 28px;
            font-weight: 750;
            margin-bottom: 12px;
            color: var(--c-text);
            line-height: 1.35;
        }
        .section-lead {
            font-size: 17px;
            color: var(--c-text-sub);
            max-width: 720px;
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .text-accent {
            color: var(--c-accent);
        }
        .text-primary {
            color: var(--c-primary);
        }
        .bg-muted {
            background-color: var(--c-muted);
        }
        .bg-card {
            background-color: var(--c-card);
        }
        .btn {
            display: inline-block;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            text-align: center;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition-base);
            line-height: 1.5;
            text-decoration: none !important;
        }
        .btn-primary {
            background-color: var(--c-accent);
            color: var(--c-white);
            border-color: var(--c-accent);
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--c-primary);
            color: var(--c-white);
            border-color: var(--c-primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(14, 61, 46, .18);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--c-accent);
            border-color: var(--c-accent);
        }
        .btn-outline:hover,
        .btn-outline:focus {
            background-color: var(--c-accent);
            color: var(--c-white);
            border-color: var(--c-accent);
            transform: translateY(-2px);
        }
        .btn-white-outline {
            background-color: transparent;
            color: var(--c-white);
            border-color: rgba(255, 255, 255, .6);
        }
        .btn-white-outline:hover,
        .btn-white-outline:focus {
            background-color: var(--c-accent);
            color: var(--c-white);
            border-color: var(--c-accent);
        }
        .btn-text {
            background: none;
            border: none;
            color: var(--c-accent);
            padding: 4px 0;
            font-weight: 600;
            font-size: 15px;
            display: inline-block;
        }
        .btn-text:hover,
        .btn-text:focus {
            text-decoration: underline;
            color: var(--c-primary);
        }
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 500;
            line-height: 1.6;
            background-color: var(--c-muted);
            color: var(--c-primary);
        }
        .badge-accent {
            background-color: var(--c-accent);
            color: var(--c-white);
        }
        .card {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: var(--transition-base);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--c-accent);
            transform: translateY(-4px);
        }
        .card-plain {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 22px;
            transition: var(--transition-base);
        }
        .card-plain:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--c-accent);
            transform: translateY(-3px);
        }

        /* ========== 头部导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 90;
            background: var(--c-primary);
            box-shadow: 0 2px 16px rgba(14, 61, 46, .16);
        }
        .nav-wrapper {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            position: relative;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: .5px;
            text-decoration: none;
        }
        .nav-logo:hover,
        .nav-logo:focus {
            color: #fff;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: var(--c-accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 24px;
            cursor: pointer;
            padding: 8px;
            border-radius: 6px;
            transition: var(--transition-base);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, .12);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 6px;
        }
        .nav-menu > li {
            position: relative;
            display: flex;
            align-items: center;
        }
        .nav-menu > li > a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            color: rgba(255, 255, 255, .9);
            font-size: 15px;
            font-weight: 500;
            border-radius: 6px;
            transition: var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-menu > li > a:hover,
        .nav-menu > li > a:focus {
            background: rgba(255, 255, 255, .08);
            color: #fff;
        }
        .nav-menu > li.active > a {
            color: var(--c-accent);
            box-shadow: inset 0 -2px 0 var(--c-accent);
            background: transparent;
        }
        .nav-menu li .fa-chevron-down {
            font-size: 11px;
            opacity: .7;
            transition: transform .2s ease;
        }
        .dropdown-panel {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 220px;
            background: var(--c-card);
            border-radius: 10px;
            box-shadow: var(--shadow-drop);
            padding: 10px 0;
            margin: 0;
            list-style: none;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all .25s ease;
            z-index: 200;
            display: block;
        }
        .nav-menu > li:hover .dropdown-panel,
        .nav-menu > li:focus-within .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .dropdown-panel li {
            padding: 0;
        }
        .dropdown-panel li a {
            display: block;
            padding: 10px 20px;
            color: var(--c-text);
            font-size: 14px;
            font-weight: 500;
            line-height: 1.5;
            transition: var(--transition-base);
            text-decoration: none;
            border-left: 3px solid transparent;
        }
        .dropdown-panel li a:hover,
        .dropdown-panel li a:focus {
            background: var(--c-muted);
            color: var(--c-primary);
            border-left-color: var(--c-accent);
        }
        .dropdown-panel li.dropdown-head {
            padding: 8px 20px 4px;
            font-size: 12px;
            color: #999;
            font-weight: 600;
            letter-spacing: .3px;
        }
        .dropdown-panel li.dropdown-divider {
            height: 1px;
            background: var(--c-line);
            margin: 6px 16px;
            padding: 0;
        }

        /* ========== 移动端导航 ========== */
        @media (max-width: 1023px) {
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .nav-menu {
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--c-primary);
                flex-direction: column;
                align-items: stretch;
                padding: 12px 16px;
                gap: 0;
                display: none;
                max-height: calc(100vh - 68px);
                overflow-y: auto;
                box-shadow: 0 16px 32px rgba(0, 0, 0, .18);
                border-radius: 0 0 12px 12px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu > li {
                display: flex;
                flex-direction: column;
                align-items: stretch;
            }
            .nav-menu > li > a {
                padding: 13px 12px;
                border-bottom: 1px solid rgba(255, 255, 255, .08);
                border-radius: 0;
                font-size: 16px;
            }
            .nav-menu > li.active > a {
                box-shadow: none;
                border-left: 3px solid var(--c-accent);
            }
            .dropdown-panel {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                background: rgba(255, 255, 255, .04);
                border-radius: 0;
                box-shadow: none;
                padding: 4px 0;
                margin: 0;
                display: none;
                min-width: 0;
                width: 100%;
            }
            .dropdown-panel.open {
                display: block;
            }
            .dropdown-panel li a {
                color: rgba(255, 255, 255, .85);
                border-left: 3px solid rgba(255, 255, 255, .15);
                padding: 9px 20px 9px 26px;
            }
            .dropdown-panel li a:hover,
            .dropdown-panel li a:focus {
                background: rgba(255, 255, 255, .08);
                color: #fff;
                border-left-color: var(--c-accent);
            }
            .dropdown-panel li.dropdown-head,
            .dropdown-panel li.dropdown-divider {
                display: none;
            }
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            padding: 22px 0 0;
            background: var(--c-bg);
        }
        .breadcrumb {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--c-text-sub);
            flex-wrap: wrap;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li + li::before {
            content: "\f054";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 10px;
            color: #bbb;
        }
        .breadcrumb a {
            color: var(--c-primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--c-accent);
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: var(--c-accent);
            font-weight: 600;
        }

        /* ========== 分类页眉 ========== */
        .category-header {
            padding: 28px 0 40px;
            background: var(--c-bg);
        }
        .category-header h1 {
            font-size: 36px;
            font-weight: 850;
            color: var(--c-primary);
            margin: 12px 0 8px;
            line-height: 1.3;
        }
        .category-header .lead-text {
            font-size: 17px;
            color: var(--c-text-sub);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ========== 列表卡片 ========== */
        .article-list-section {
            background: var(--c-card);
            padding: 56px 0 64px;
        }
        .article-list-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 28px 0;
            border-bottom: 1px solid var(--c-line);
            transition: var(--transition-base);
        }
        .article-list-item:first-of-type {
            padding-top: 0;
        }
        .article-list-item:last-of-type {
            border-bottom: none;
            padding-bottom: 0;
        }
        .article-list-item:hover {
            padding-left: 12px;
        }
        .article-tag {
            flex-shrink: 0;
            min-width: 72px;
            text-align: center;
            background: var(--c-muted);
            color: var(--c-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 6px 10px;
            border-radius: var(--radius-badge);
            line-height: 1.4;
        }
        .article-list-content {
            flex: 1;
            min-width: 0;
        }
        .article-list-content h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 8px;
            line-height: 1.4;
        }
        .article-list-content h3 a {
            color: var(--c-text);
            text-decoration: none;
            transition: var(--transition-base);
        }
        .article-list-content h3 a:hover,
        .article-list-content h3 a:focus {
            color: var(--c-accent);
        }
        .article-summary {
            font-size: 15px;
            color: var(--c-text-sub);
            line-height: 1.8;
            margin: 0 0 8px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: #999;
            flex-wrap: wrap;
        }
        .article-meta .date {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .article-meta .read-link {
            margin-left: auto;
            font-size: 14px;
            font-weight: 600;
            color: var(--c-accent);
            text-decoration: none;
        }
        .article-meta .read-link:hover {
            color: var(--c-primary);
            text-decoration: underline;
        }

        /* ========== 查看更多 ========== */
        .more-entry {
            text-align: center;
            padding: 16px 0 0;
        }
        .more-entry .btn-outline {
            padding: 12px 36px;
            font-size: 15px;
        }

        /* ========== 深度介绍区 ========== */
        .depth-section {
            background: var(--c-muted);
            padding: 56px 0 64px;
        }
        .depth-article {
            max-width: 860px;
            margin: 0 auto;
            background: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            padding: 40px 44px;
            box-shadow: var(--shadow-card);
        }
        .depth-article h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--c-primary);
            margin: 28px 0 10px;
            line-height: 1.4;
        }
        .depth-article h3:first-child {
            margin-top: 0;
        }
        .depth-article p {
            font-size: 16px;
            color: var(--c-text);
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .depth-article ul {
            padding-left: 22px;
            margin: 12px 0 20px;
        }
        .depth-article ul li {
            font-size: 16px;
            line-height: 1.85;
            color: var(--c-text);
            margin-bottom: 8px;
        }
        .depth-article img {
            border-radius: var(--radius-img);
            margin: 20px 0;
        }

        /* ========== 数据支撑区 ========== */
        .stats-section {
            background: var(--c-primary);
            padding: 56px 0 60px;
        }
        .stats-section .section-title {
            color: var(--c-white);
        }
        .stats-section .section-lead {
            color: rgba(255, 255, 255, .75);
        }
        .stat-card {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            transition: var(--transition-base);
            height: 100%;
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, .1);
            border-color: rgba(255, 255, 255, .25);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 38px;
            font-weight: 850;
            color: var(--c-accent);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .85);
            font-weight: 500;
            line-height: 1.5;
        }

        /* ========== 相关文章推荐 ========== */
        .related-section {
            background: var(--c-card);
            padding: 56px 0 64px;
        }
        .related-card {
            display: flex;
            flex-direction: column;
            height: 100%;
            background: var(--c-card);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
        }
        .related-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--c-accent);
            transform: translateY(-4px);
        }
        .related-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card-body h4 {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 8px;
            line-height: 1.45;
        }
        .related-card-body h4 a {
            color: var(--c-text);
            text-decoration: none;
        }
        .related-card-body h4 a:hover {
            color: var(--c-accent);
        }
        .related-card-body p {
            font-size: 14px;
            color: var(--c-text-sub);
            line-height: 1.7;
            margin: 0 0 12px;
            flex: 1;
        }
        .related-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--c-primary);
            background: var(--c-muted);
            display: inline-block;
            padding: 3px 12px;
            border-radius: var(--radius-badge);
            align-self: flex-start;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--c-bg);
            padding: 56px 0 64px;
        }
        .faq-item {
            background: var(--c-card);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--c-accent);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 650;
            color: var(--c-text);
            background: var(--c-card);
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition-base);
            line-height: 1.5;
        }
        .faq-question:hover {
            color: var(--c-primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--c-muted);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--c-primary);
            transition: var(--transition-base);
        }
        .faq-answer {
            padding: 0 22px 20px;
            font-size: 15px;
            color: var(--c-text-sub);
            line-height: 1.9;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question .faq-icon {
            background: var(--c-accent);
            color: #fff;
            transform: rotate(45deg);
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--c-accent), #B06C32);
            padding: 56px 0 60px;
            text-align: center;
        }
        .cta-box {
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-box h2 {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .cta-box p {
            font-size: 16px;
            color: rgba(255, 255, 255, .9);
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .cta-box .btn {
            margin: 0 6px 10px;
        }
        .cta-box .btn-primary {
            background: var(--c-primary);
            color: #fff;
            border-color: var(--c-primary);
        }
        .cta-box .btn-primary:hover {
            background: #0a2c20;
            border-color: #0a2c20;
        }
        .cta-box .btn-white-outline {
            color: #fff;
            border-color: rgba(255, 255, 255, .7);
        }
        .cta-box .btn-white-outline:hover {
            background: #fff;
            color: var(--c-accent);
            border-color: #fff;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--c-primary);
            color: rgba(255, 255, 255, .85);
            padding: 50px 0 30px;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .logo-icon {
            background: var(--c-accent);
        }
        .footer-desc {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .7);
            max-width: 320px;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            line-height: 1.4;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, .7);
            text-decoration: none;
            font-size: 13px;
            transition: var(--transition-base);
        }
        .footer-col ul li a:hover,
        .footer-col ul li a:focus {
            color: var(--c-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding-top: 22px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: rgba(255, 255, 255, .6);
        }
        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .footer-legal span {
            white-space: nowrap;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, .7);
            text-decoration: none;
            font-size: 12px;
            transition: var(--transition-base);
        }
        .footer-bottom a:hover {
            color: var(--c-accent);
            text-decoration: underline;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1023px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .depth-article {
                padding: 30px 24px;
            }
            .article-list-item {
                flex-direction: column;
                gap: 10px;
            }
            .article-tag {
                min-width: auto;
                align-self: flex-start;
            }
            .article-meta .read-link {
                margin-left: 0;
            }
        }
        @media (max-width: 640px) {
            .section {
                padding: var(--section-y-mobile) 0;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .nav-wrapper {
                padding: 0 16px;
                height: 60px;
            }
            .nav-menu {
                top: 60px;
            }
            .category-header h1 {
                font-size: 27px;
            }
            .category-header .lead-text {
                font-size: 15px;
            }
            .section-title {
                font-size: 22px;
            }
            .section-lead {
                font-size: 15px;
            }
            .depth-article {
                padding: 22px 18px;
            }
            .depth-article h3 {
                font-size: 18px;
            }
            .depth-article p,
            .depth-article ul li {
                font-size: 15px;
            }
            .article-list-content h3 {
                font-size: 17px;
            }
            .article-summary {
                font-size: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .stat-number {
                font-size: 28px;
            }
            .related-card img {
                height: 120px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 16px 16px;
                font-size: 14px;
            }
            .cta-box h2 {
                font-size: 22px;
            }
            .breadcrumb-bar {
                padding-top: 14px;
            }
            .category-header {
                padding: 20px 0 28px;
            }
        }
        @media (min-width: 641px) and (max-width: 1023px) {
            .section {
                padding: 56px 0;
            }
        }

/* roulang page: category4 */
:root {
            --c-primary: #0E3D2E;
            --c-secondary: #1F5A47;
            --c-accent: #C97A3D;
            --c-accent-hover: #B06C32;
            --c-bg: #F5F2EA;
            --c-card: #FFFFFF;
            --c-text: #1C1C1C;
            --c-text-sub: #4A4A4A;
            --c-line: #DDE5DC;
            --c-muted: #F0EDE4;
            --c-white: #FFFFFF;
            --c-focus: #2E8B6B;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 20px;
            --radius-img: 8px;
            --shadow-card: 0 2px 12px rgba(14, 61, 46, .06);
            --shadow-card-hover: 0 8px 24px rgba(14, 61, 46, .12);
            --shadow-drop: 0 12px 32px rgba(0, 0, 0, .12);
            --transition-base: all .25s ease;
            --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Noto Sans SC", sans-serif;
            --section-y: 72px;
            --section-y-mobile: 48px;
            --container-max: 1200px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            color: var(--c-text);
            background-color: var(--c-bg);
            line-height: 1.85;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--c-accent);
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:hover,
        a:focus {
            color: var(--c-primary);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--c-focus);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: var(--section-y) 0;
            position: relative;
        }
        .section-title {
            font-size: 28px;
            font-weight: 750;
            margin-bottom: 12px;
            color: var(--c-text);
        }
        .section-lead {
            font-size: 17px;
            color: var(--c-text-sub);
            max-width: 720px;
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .text-accent {
            color: var(--c-accent);
        }
        .text-primary {
            color: var(--c-primary);
        }
        .bg-muted {
            background-color: var(--c-muted);
        }
        .bg-card {
            background-color: var(--c-card);
        }
        .btn {
            display: inline-block;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            text-align: center;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition-base);
            line-height: 1.5;
            text-decoration: none !important;
        }
        .btn-primary {
            background-color: var(--c-accent);
            color: var(--c-white);
            border-color: var(--c-accent);
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--c-primary);
            color: var(--c-white);
            border-color: var(--c-primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(14, 61, 46, .18);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--c-accent);
            border-color: var(--c-accent);
        }
        .btn-outline:hover,
        .btn-outline:focus {
            background-color: var(--c-accent);
            color: var(--c-white);
            border-color: var(--c-accent);
            transform: translateY(-2px);
        }
        .btn-white-outline {
            background-color: transparent;
            color: var(--c-white);
            border-color: rgba(255, 255, 255, .6);
        }
        .btn-white-outline:hover,
        .btn-white-outline:focus {
            background-color: var(--c-accent);
            color: var(--c-white);
            border-color: var(--c-accent);
        }
        .btn-text {
            background: none;
            border: none;
            color: var(--c-accent);
            padding: 4px 0;
            font-weight: 600;
            font-size: 15px;
        }
        .btn-text:hover,
        .btn-text:focus {
            text-decoration: underline;
            color: var(--c-primary);
        }
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 500;
            line-height: 1.6;
            background-color: var(--c-muted);
            color: var(--c-primary);
        }
        .badge-accent {
            background-color: var(--c-accent);
            color: var(--c-white);
        }
        .card {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: var(--transition-base);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--c-accent);
            transform: translateY(-4px);
        }
        .card-plain {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 22px;
        }
        .grid-x {
            display: flex;
            flex-wrap: wrap;
        }
        .grid-padding-x {
            margin-left: -12px;
            margin-right: -12px;
        }
        .grid-padding-x>.cell {
            padding-left: 12px;
            padding-right: 12px;
        }

        /* 导航样式 */
        .site-header {
            background-color: var(--c-primary);
            box-shadow: 0 2px 16px rgba(14, 61, 46, .18);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .nav-wrapper {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            flex-wrap: wrap;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--c-white);
            font-size: 20px;
            font-weight: 750;
            text-decoration: none;
            letter-spacing: .5px;
        }
        .nav-logo:hover,
        .nav-logo:focus {
            color: var(--c-accent);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--c-accent);
            color: var(--c-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--c-white);
            font-size: 24px;
            cursor: pointer;
            padding: 8px 12px;
            border-radius: 6px;
            transition: var(--transition-base);
        }
        .nav-toggle:hover {
            background-color: rgba(255, 255, 255, .1);
            color: var(--c-accent);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu>li {
            position: relative;
        }
        .nav-menu>li>a {
            display: block;
            padding: 14px 16px;
            color: rgba(255, 255, 255, .88);
            font-size: 15px;
            font-weight: 500;
            text-decoration: none;
            border-bottom: 2px solid transparent;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-menu>li>a:hover,
        .nav-menu>li>a:focus {
            color: var(--c-accent);
            border-bottom-color: var(--c-accent);
        }
        .nav-menu>li.active>a {
            color: var(--c-accent);
            border-bottom-color: var(--c-accent);
        }
        .nav-menu>li.has-dropdown>a::after {
            content: "\f0d7";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 11px;
            margin-left: 6px;
            opacity: .7;
        }
        .dropdown-panel {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 240px;
            background-color: var(--c-white);
            border-radius: 8px;
            box-shadow: var(--shadow-drop);
            padding: 12px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: var(--transition-base);
            z-index: 200;
            list-style: none;
            margin: 0;
        }
        .nav-menu>li.has-dropdown:hover .dropdown-panel,
        .nav-menu>li.has-dropdown:focus-within .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .dropdown-panel li a {
            display: block;
            padding: 8px 18px;
            color: var(--c-text-sub);
            font-size: 14px;
            text-decoration: none;
            transition: var(--transition-base);
        }
        .dropdown-panel li a:hover,
        .dropdown-panel li a:focus {
            background-color: var(--c-muted);
            color: var(--c-accent);
        }
        .dropdown-title {
            display: block;
            padding: 8px 18px 4px;
            font-size: 13px;
            font-weight: 700;
            color: var(--c-primary);
            letter-spacing: .3px;
        }
        .dropdown-meta {
            display: block;
            padding: 4px 18px 8px;
            color: #888;
            font-size: 12px;
        }
        .dropdown-divider {
            height: 1px;
            background-color: var(--c-line);
            margin: 6px 0;
        }

        @media (max-width: 1024px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background-color: var(--c-primary);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 0;
                box-shadow: 0 16px 32px rgba(0, 0, 0, .16);
                display: none;
                max-height: 80vh;
                overflow-y: auto;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu>li>a {
                padding: 12px 24px;
                border-bottom: 1px solid rgba(255, 255, 255, .08);
            }
            .nav-menu>li.active>a {
                border-bottom-color: var(--c-accent);
            }
            .dropdown-panel {
                position: static;
                min-width: 0;
                background-color: rgba(0, 0, 0, .2);
                box-shadow: none;
                padding: 0;
                opacity: 1;
                visibility: visible;
                transform: none;
                display: none;
                border-radius: 0;
            }
            .nav-menu>li.has-dropdown.open .dropdown-panel {
                display: block;
            }
            .dropdown-panel li a {
                color: rgba(255, 255, 255, .8);
                padding: 10px 36px;
            }
            .dropdown-panel li a:hover {
                background-color: rgba(255, 255, 255, .08);
                color: var(--c-accent);
            }
            .dropdown-title,
            .dropdown-meta,
            .dropdown-divider {
                display: none;
            }
            .nav-menu>li.has-dropdown>a::after {
                content: "\f0d7";
                transition: transform .25s ease;
            }
            .nav-menu>li.has-dropdown.open>a::after {
                transform: rotate(180deg);
            }
        }

        @media (max-width: 640px) {
            .nav-wrapper {
                padding: 0 16px;
                min-height: 60px;
            }
            .nav-logo {
                font-size: 17px;
                gap: 8px;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 13px;
            }
            .nav-toggle {
                font-size: 20px;
                padding: 6px 10px;
            }
            .nav-menu {
                top: 60px;
            }
        }

        /* 面包屑 */
        .breadcrumb-bar {
            background-color: var(--c-muted);
            border-bottom: 1px solid var(--c-line);
            padding: 14px 0;
        }
        .breadcrumb {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--c-text-sub);
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb li+li::before {
            content: "/";
            color: #aaa;
            font-size: 13px;
        }
        .breadcrumb a {
            color: var(--c-accent);
        }
        .breadcrumb a:hover {
            color: var(--c-primary);
            text-decoration: underline;
        }

        /* 分类页眉 */
        .category-header {
            background: linear-gradient(135deg, #0E3D2E 0%, #1F5A47 60%, #2A4D3A 100%);
            color: var(--c-white);
            padding: 64px 0 48px;
            position: relative;
            overflow: hidden;
        }
        .category-header::after {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background-color: rgba(201, 122, 61, .25);
            z-index: 0;
        }
        .category-header .container {
            position: relative;
            z-index: 1;
        }
        .category-header h1 {
            font-size: 38px;
            font-weight: 850;
            margin-bottom: 12px;
            color: var(--c-white);
            letter-spacing: .5px;
        }
        .category-header .cat-lead {
            font-size: 18px;
            max-width: 760px;
            color: rgba(255, 255, 255, .82);
            line-height: 1.85;
            margin-bottom: 0;
        }
        @media (max-width: 640px) {
            .category-header {
                padding: 40px 0 32px;
            }
            .category-header h1 {
                font-size: 30px;
            }
            .category-header .cat-lead {
                font-size: 16px;
            }
        }

        /* 列表主体 */
        .guide-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .guide-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            padding: 20px;
            transition: var(--transition-base);
            text-decoration: none !important;
            color: var(--c-text);
        }
        .guide-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--c-accent);
            transform: translateY(-4px);
            color: var(--c-text);
        }
        .guide-item-img {
            width: 100px;
            height: 80px;
            border-radius: var(--radius-img);
            object-fit: cover;
            flex-shrink: 0;
            background-color: var(--c-muted);
        }
        .guide-item-body {
            flex: 1;
            min-width: 0;
        }
        .guide-item-tag {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background-color: var(--c-muted);
            color: var(--c-primary);
            margin-bottom: 8px;
        }
        .guide-item-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--c-text);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .guide-item-summary {
            font-size: 14px;
            color: var(--c-text-sub);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .guide-item-meta {
            font-size: 13px;
            color: #888;
        }
        .guide-item-meta i {
            margin-right: 4px;
            color: var(--c-accent);
        }
        .guide-more {
            text-align: center;
            margin-top: 32px;
        }
        @media (max-width: 768px) {
            .guide-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .guide-item {
                gap: 14px;
            }
            .guide-item-img {
                width: 80px;
                height: 68px;
            }
        }
        @media (max-width: 520px) {
            .guide-item {
                flex-direction: column;
                gap: 12px;
                padding: 16px;
            }
            .guide-item-img {
                width: 100%;
                height: 160px;
            }
            .guide-item-title {
                font-size: 15px;
            }
        }

        /* 深度介绍区 */
        .deep-article {
            background-color: var(--c-card);
            border-radius: 16px;
            padding: 48px 56px;
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            max-width: 960px;
            margin: 0 auto;
        }
        .deep-article h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--c-primary);
            margin-top: 36px;
            margin-bottom: 14px;
            border-left: 4px solid var(--c-accent);
            padding-left: 16px;
            line-height: 1.4;
        }
        .deep-article h3:first-of-type {
            margin-top: 0;
        }
        .deep-article p {
            font-size: 16px;
            color: var(--c-text-sub);
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .deep-article ul {
            padding-left: 24px;
            margin-bottom: 16px;
        }
        .deep-article ul li {
            font-size: 16px;
            color: var(--c-text-sub);
            line-height: 1.85;
            margin-bottom: 8px;
        }
        .deep-article blockquote {
            border-left: 4px solid var(--c-accent);
            background-color: var(--c-muted);
            padding: 20px 24px;
            border-radius: 8px;
            margin: 20px 0;
            font-size: 16px;
            color: var(--c-text);
            line-height: 1.9;
        }
        .deep-article img {
            border-radius: var(--radius-img);
            margin: 20px 0;
            width: 100%;
            object-fit: cover;
        }
        @media (max-width: 768px) {
            .deep-article {
                padding: 28px 20px;
                border-radius: 12px;
            }
            .deep-article h3 {
                font-size: 19px;
            }
            .deep-article p,
            .deep-article ul li,
            .deep-article blockquote {
                font-size: 15px;
            }
        }

        /* 数据支撑 */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: linear-gradient(145deg, #0E3D2E 0%, #1F5A47 100%);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            color: var(--c-white);
            border: 1px solid rgba(255, 255, 255, .08);
            transition: var(--transition-base);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(14, 61, 46, .25);
        }
        .stat-number {
            font-size: 36px;
            font-weight: 850;
            color: var(--c-accent);
            display: block;
            margin-bottom: 6px;
            letter-spacing: .5px;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .75);
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-number {
                font-size: 28px;
            }
        }
        @media (max-width: 520px) {
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 24px;
            }
        }

        /* 相关推荐 */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .related-card {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            padding: 18px;
            transition: var(--transition-base);
            text-decoration: none !important;
            color: var(--c-text);
        }
        .related-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--c-accent);
            transform: translateY(-3px);
            color: var(--c-text);
        }
        .related-card-img {
            width: 80px;
            height: 64px;
            border-radius: 6px;
            object-fit: cover;
            flex-shrink: 0;
            background-color: var(--c-muted);
        }
        .related-card-body {
            flex: 1;
            min-width: 0;
        }
        .related-card-title {
            font-size: 15px;
            font-weight: 650;
            margin-bottom: 4px;
            color: var(--c-text);
            line-height: 1.5;
        }
        .related-card-meta {
            font-size: 12px;
            color: #888;
        }
        @media (max-width: 768px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
            .related-card {
                gap: 12px;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background-color: var(--c-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-line);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--c-accent);
            box-shadow: var(--shadow-card-hover);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 650;
            color: var(--c-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-family: var(--font-stack);
            line-height: 1.6;
            transition: var(--transition-base);
        }
        .faq-question:hover {
            color: var(--c-accent);
        }
        .faq-icon {
            font-size: 16px;
            color: var(--c-accent);
            transition: transform .3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
            padding: 0 24px;
            color: var(--c-text-sub);
            font-size: 15px;
            line-height: 1.85;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }
        @media (max-width: 640px) {
            .faq-question {
                padding: 14px 18px;
                font-size: 15px;
                gap: 10px;
            }
            .faq-answer {
                padding: 0 18px;
                font-size: 14px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* CTA */
        .cta-band {
            background: linear-gradient(135deg, #C97A3D 0%, #B06C32 50%, #A85F28 100%);
            border-radius: 16px;
            padding: 48px 40px;
            text-align: center;
            color: var(--c-white);
            position: relative;
            overflow: hidden;
        }
        .cta-band::before {
            content: "";
            position: absolute;
            left: -40px;
            top: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, .1);
        }
        .cta-band::after {
            content: "";
            position: absolute;
            right: -20px;
            bottom: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, .08);
        }
        .cta-band h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--c-white);
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-band p {
            font-size: 16px;
            color: rgba(255, 255, 255, .85);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }
        .cta-band .btn {
            position: relative;
            z-index: 1;
        }
        @media (max-width: 640px) {
            .cta-band {
                padding: 32px 20px;
                border-radius: 12px;
            }
            .cta-band h2 {
                font-size: 22px;
            }
            .cta-band p {
                font-size: 14px;
            }
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--c-primary);
            color: var(--c-white);
            padding: 56px 0 32px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 750;
            margin-bottom: 14px;
        }
        .footer-brand .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 14px;
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            line-height: 1.8;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--c-white);
            margin-bottom: 14px;
            letter-spacing: .3px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            text-decoration: none;
            transition: var(--transition-base);
        }
        .footer-col ul li a:hover,
        .footer-col ul li a:focus {
            color: var(--c-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }
        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, .5);
            text-decoration: none;
            transition: var(--transition-base);
        }
        .footer-bottom a:hover,
        .footer-bottom a:focus {
            color: var(--c-accent);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 640px) {
            .site-footer {
                padding: 40px 0 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                margin-bottom: 28px;
            }
            .footer-desc {
                max-width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-legal {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
        }

        /* 通用响应式容器 */
        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding: var(--section-y-mobile) 0;
            }
            .section-title {
                font-size: 24px;
            }
            .section-lead {
                font-size: 15px;
                margin-bottom: 24px;
            }
        }