/* roulang page: index */
:root {
            --c-primary: #FF6B2C;
            --c-primary-dark: #E85A1F;
            --c-primary-light: #FFE8DD;
            --c-secondary: #0F1B2D;
            --c-accent: #3DDC8E;
            --c-bg: #F5F3F0;
            --c-card: #FFFFFF;
            --c-text: #22202A;
            --c-text-secondary: #6A6A75;
            --c-text-light: #A5A5AF;
            --c-border: #E8E4DE;
            --c-disabled-bg: #E9E9ED;
            --radius-card: 16px;
            --radius-small: 8px;
            --radius-round: 999px;
            --shadow-card: 0 4px 20px rgba(15, 27, 45, 0.06);
            --shadow-hover: 0 12px 32px rgba(255, 107, 44, 0.14);
            --font-primary: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-primary);
            background: var(--c-bg);
            color: var(--c-text);
            line-height: 1.75;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--c-primary);
            text-decoration: none;
            transition: color .2s ease;
        }

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

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

        [role="button"],
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1320px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--c-text);
            line-height: 1.35;
        }

        h1 {
            font-size: 2.75rem;
            font-weight: 700;
            line-height: 1.25;
        }

        h2 {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.3;
        }

        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            line-height: 1.4;
        }

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

        .text-secondary {
            color: var(--c-text-secondary) !important;
        }

        .section-block {
            padding: 96px 0;
        }

        .section-heading {
            margin-bottom: 40px;
        }

        .section-heading h2 {
            margin-bottom: 12px;
        }

        .section-heading p {
            color: var(--c-text-secondary);
            font-size: 1rem;
            max-width: 640px;
        }

        .btn {
            border-radius: var(--radius-small);
            font-weight: 600;
            transition: all .25s ease;
        }

        .btn-lg {
            height: 52px;
            padding: 0 32px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

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

        .btn-primary:hover,
        .btn-primary:focus,
        .btn-primary:active {
            background: var(--c-primary-dark) !important;
            border-color: var(--c-primary-dark) !important;
            color: #fff !important;
            box-shadow: 0 6px 18px rgba(255, 107, 44, 0.32);
            transform: translateY(-2px);
        }

        .btn-outline-secondary {
            border: 2px solid var(--c-secondary);
            color: var(--c-secondary);
            background: transparent;
        }

        .btn-outline-secondary:hover {
            background: rgba(255, 107, 44, 0.1);
            border-color: var(--c-secondary);
            color: var(--c-secondary);
        }

        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, 0.9);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: #fff;
            color: #fff;
        }

        .btn-white {
            background: #fff;
            color: var(--c-secondary);
            border: none;
        }

        .btn-white:hover {
            background: #F0F0F0;
            color: var(--c-secondary);
            transform: translateY(-2px);
        }

        .btn:focus-visible {
            outline: 2px solid var(--c-primary);
            outline-offset: 2px;
            box-shadow: 0 0 0 2px rgba(255, 107, 44, 0.4);
        }

        /* ========== Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid transparent;
            transition: box-shadow .3s ease, border-color .3s ease;
        }

        .site-header.scrolled {
            border-bottom-color: var(--c-border);
            box-shadow: 0 4px 24px rgba(15, 27, 45, 0.08);
        }

        .header-topbar {
            padding: 12px 0;
            transition: padding .3s ease;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--c-primary);
            color: #fff;
            font-weight: 800;
            font-size: 20px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(255, 107, 44, 0.3);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: var(--c-text);
            white-space: nowrap;
        }

        .header-searchbox {
            flex: 0 0 auto;
            width: 340px;
            margin: 0 auto;
        }

        .header-searchbox form {
            display: flex;
            align-items: center;
        }

        .search-inner {
            flex: 1;
            height: 40px;
            background: var(--c-bg);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-round);
            padding: 0 16px;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all .3s ease;
        }

        .search-inner i {
            color: var(--c-text-light);
            font-size: 14px;
            flex-shrink: 0;
        }

        .search-inner input {
            border: none;
            outline: none;
            background: transparent;
            width: 100%;
            font-size: 14px;
            color: var(--c-text);
        }

        .btn-search {
            height: 40px;
            padding: 0 20px;
            margin-left: 8px;
            background: var(--c-secondary);
            color: #fff;
            border: none;
            border-radius: var(--radius-round);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            transition: all .25s ease;
        }

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

        .btn-header-cta {
            height: 40px;
            padding: 0 22px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-round);
            display: inline-flex;
            align-items: center;
            box-shadow: none;
            flex-shrink: 0;
        }

        .navbar-toggler {
            border: 1px solid var(--c-border);
            background: #fff;
            border-radius: var(--radius-small);
            padding: 8px 10px;
            display: inline-flex;
            flex-direction: column;
            gap: 3px;
            width: 42px;
            height: 40px;
            align-items: center;
            justify-content: center;
        }

        .navbar-toggler .toggler-bar {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--c-secondary);
            border-radius: 2px;
        }

        .header-channel {
            border-top: 1px solid #f1efec;
            transition: all .25s ease;
        }

        .site-header.scrolled .header-channel {
            display: none;
        }

        .channel-nav ul {
            display: flex;
            gap: 32px;
            padding: 0;
            margin: 0;
            list-style: none;
        }

        .channel-nav a {
            display: block;
            padding: 14px 0;
            font-size: 15px;
            font-weight: 500;
            color: var(--c-text);
            border-bottom: 3px solid transparent;
            transition: all .2s ease;
        }

        .channel-nav a:hover {
            color: var(--c-primary);
            border-bottom-color: var(--c-primary);
        }

        .channel-nav li.active a {
            color: var(--c-primary);
            border-bottom-color: var(--c-primary);
        }

        .trend-keywords {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
        }

        .trend-label {
            color: var(--c-text-light);
            font-weight: 500;
        }

        .trend-label i {
            color: #FF6B2C;
            margin-right: 2px;
        }

        .trend-keywords a {
            color: var(--c-text-secondary);
            font-size: 13px;
            transition: color .2s ease;
        }

        .trend-keywords a:hover {
            color: var(--c-primary);
        }

        .mobile-panel {
            background: #fff;
            border-top: 1px solid var(--c-border);
        }

        .mobile-panel .mobile-search {
            display: flex;
            gap: 8px;
        }

        .mobile-panel .mobile-search input {
            height: 44px;
            border-radius: var(--radius-round);
            border: 1px solid var(--c-border);
            padding: 0 18px;
            font-size: 14px;
        }

        .mobile-panel .mobile-search button {
            height: 44px;
            border-radius: var(--radius-round);
            padding: 0 24px;
            white-space: nowrap;
        }

        .mobile-nav-links ul {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav-links a {
            display: block;
            padding: 10px 0;
            font-size: 16px;
            font-weight: 500;
            color: var(--c-text);
            border-bottom: 1px solid #f3f1ef;
        }

        .mobile-nav-links a:hover,
        .mobile-nav-links li.active a {
            color: var(--c-primary);
        }

        .mobile-trends {
            display: flex;
            gap: 14px;
            font-size: 13px;
            color: var(--c-text-light);
        }

        .mobile-trends a {
            color: var(--c-text-secondary);
        }

        /* 吸顶搜索收起为图标 */
        .site-header.scrolled .header-searchbox {
            width: 44px;
            position: relative;
        }

        .site-header.scrolled .search-inner {
            width: 40px;
            padding: 0;
            justify-content: center;
            background: #fff;
            border-radius: 50%;
            border-color: var(--c-border);
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
        }

        .site-header.scrolled .search-inner input {
            display: none;
        }

        .site-header.scrolled .btn-search {
            width: 40px;
            padding: 0;
            margin-left: 0;
            border-radius: 50%;
            justify-content: center;
            background: var(--c-secondary);
            color: #fff;
            font-size: 0;
        }

        .site-header.scrolled .btn-search::before {
            content: "\F52A";
            font-family: "bootstrap-icons";
            font-size: 16px;
        }

        .site-header.scrolled.search-expanded .header-searchbox {
            width: 340px;
        }

        .site-header.scrolled.search-expanded .search-inner {
            width: auto;
            padding: 0 16px;
            border-radius: var(--radius-round);
            justify-content: flex-start;
            position: static;
            background: var(--c-bg);
        }

        .site-header.scrolled.search-expanded .search-inner input {
            display: block;
        }

        .site-header.scrolled.search-expanded .btn-search {
            width: auto;
            padding: 0 20px;
            margin-left: 8px;
            border-radius: var(--radius-round);
            font-size: 14px;
        }

        .site-header.scrolled.search-expanded .btn-search::before {
            content: "";
        }

        /* ========== Hero ========== */
        .hero-section {
            background: var(--c-bg);
            padding: 96px 0 80px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: "";
            position: absolute;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 107, 44, 0.15);
            bottom: 20px;
            left: 20px;
            z-index: 0;
        }

        .hero-section::after {
            content: "";
            position: absolute;
            width: 90px;
            height: 90px;
            background: var(--c-accent);
            clip-path: polygon(0 0, 100% 0, 0 100%);
            right: 6%;
            bottom: 18%;
            z-index: 0;
            opacity: 0.8;
        }

        .hero-section .container {
            position: relative;
            z-index: 1;
        }

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

        .hero-section h1 {
            font-size: clamp(2rem, 3vw, 3rem);
            line-height: 1.25;
            margin-bottom: 20px;
        }

        .hero-sub {
            font-size: 16px;
            color: var(--c-text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--c-text-light);
        }

        .hero-trust a {
            color: var(--c-text-secondary);
            font-weight: 500;
        }

        .hero-trust a:hover {
            color: var(--c-primary);
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            line-height: 0;
        }

        .hero-visual img {
            width: 100%;
            height: 340px;
            object-fit: cover;
        }

        .hero-visual::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(15, 27, 45, 0.18) 0%, rgba(15, 27, 45, 0) 70%);
            z-index: 1;
        }

        .hero-visual-arc {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 24px;
            background: var(--c-primary);
            clip-path: polygon(0 0, 100% 100%, 0 100%);
            z-index: 2;
            opacity: 0.92;
        }

        /* ========== Solutions ========== */
        .solutions-section {
            background: var(--c-bg);
        }

        .solutions-row {
            row-gap: 32px;
        }

        .solution-card {
            background: var(--c-card);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            height: 100%;
            border: 1px solid var(--c-border);
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
            position: relative;
        }

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

        .solution-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--c-primary-light);
            color: var(--c-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
            transition: all .3s ease;
        }

        .solution-card:hover .solution-icon {
            background: var(--c-primary);
            color: #fff;
        }

        .solution-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .solution-card p {
            font-size: 14px;
            color: var(--c-text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .solution-link {
            font-size: 13px;
            font-weight: 700;
            color: var(--c-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

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

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

        .solution-sub-link {
            text-align: center;
            margin-top: 48px;
            font-size: 15px;
        }

        .solution-sub-link a {
            font-weight: 600;
            color: var(--c-text);
            border-bottom: 1px solid var(--c-primary);
            padding-bottom: 2px;
            transition: all .2s ease;
        }

        .solution-sub-link a:hover {
            color: var(--c-primary);
            border-bottom-color: transparent;
        }

        /* ========== Stats ========== */
        .stats-section {
            background: var(--c-secondary);
            padding: 96px 0;
        }

        .stats-heading h2 {
            color: #fff;
        }

        .stats-heading p {
            color: rgba(255, 255, 255, 0.6);
        }

        .stats-row {
            position: relative;
            margin-top: 48px;
            align-items: center;
        }

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

        .stat-label {
            display: block;
            font-size: 12px;
            color: #C7CDD4;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .stat-number {
            display: block;
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--c-accent);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            margin-bottom: 10px;
        }

        .stat-item p {
            font-size: 14px;
            color: #C7CDD4;
            margin: 0;
        }

        .stats-divider {
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            width: 1px;
            height: 96px;
            background: rgba(255, 255, 255, 0.15);
            display: none;
        }

        @media (min-width: 992px) {
            .stats-divider {
                display: block;
            }
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: #fff;
        }

        .faq-item {
            background: var(--c-bg);
            border-radius: var(--radius-card);
            padding: 28px 28px 24px;
            height: 100%;
            border: 1px solid var(--c-border);
            transition: all .25s ease;
        }

        .faq-item:hover {
            border-color: var(--c-primary);
            background: #fff;
            box-shadow: var(--shadow-hover);
        }

        .faq-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 12px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .faq-item h3::before {
            content: "Q";
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            background: var(--c-primary-light);
            color: var(--c-primary-dark);
            font-size: 13px;
            font-weight: 800;
            border-radius: 50%;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .faq-item p {
            font-size: 14px;
            color: var(--c-text-secondary);
            line-height: 1.7;
            margin: 0;
            padding-left: 32px;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--c-primary);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -30px;
            right: 20px;
            width: 160px;
            height: 160px;
            background: rgba(255, 255, 255, 0.08);
            transform: rotate(30deg);
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -40px;
            left: 40px;
            width: 220px;
            height: 40px;
            background: rgba(255, 255, 255, 0.06);
            transform: rotate(-8deg);
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 14px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 16px;
            margin-bottom: 28px;
        }

        .cta-inner .btn-white {
            height: 48px;
            padding: 0 36px;
            border-radius: var(--radius-small);
            font-weight: 700;
            font-size: 15px;
        }

        .cta-inner .btn-white:hover {
            background: #F0F0F0;
            color: var(--c-secondary);
        }

        /* ========== News ========== */
        .news-section {
            background: var(--c-bg);
        }

        .news-feature {
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--c-border);
            box-shadow: var(--shadow-card);
            margin-bottom: 20px;
            transition: box-shadow .3s ease, border-color .3s ease;
        }

        .news-feature:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--c-primary);
        }

        .news-feature-img {
            display: block;
            overflow: hidden;
            height: 100%;
            min-height: 240px;
            background: var(--c-border);
        }

        .news-feature-img img {
            width: 100%;
            height: 240px;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .news-feature:hover .news-feature-img img {
            transform: scale(1.03);
        }

        .news-feature-body {
            padding: 32px;
        }

        .badge-cat {
            display: inline-block;
            background: var(--c-primary-light);
            color: var(--c-primary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-round);
            margin-bottom: 16px;
        }

        .news-feature-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .news-feature-body h3 a {
            color: var(--c-text);
        }

        .news-feature-body h3 a:hover {
            color: var(--c-primary);
        }

        .news-feature-body p {
            font-size: 14px;
            color: var(--c-text-secondary);
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .news-metas {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .news-date {
            font-size: 12px;
            color: var(--c-text-light);
        }

        .news-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-primary);
        }

        .news-mini {
            background: #fff;
            border: 1px solid var(--c-border);
            border-radius: 12px;
            padding: 16px 24px;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: all .25s ease;
        }

        .news-mini:hover {
            border-color: var(--c-primary);
            box-shadow: var(--shadow-hover);
        }

        .news-mini-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--c-text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            display: block;
            min-width: 0;
        }

        .news-mini-title:hover {
            color: var(--c-primary);
        }

        .news-mini-date {
            font-size: 12px;
            color: var(--c-text-light);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .news-empty {
            border: 2px dashed var(--c-border);
            border-radius: var(--radius-card);
            height: 160px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: #fff;
        }

        .news-empty-icon {
            font-size: 28px;
        }

        .news-empty p {
            font-size: 14px;
            color: var(--c-text-light);
            margin: 8px 0 2px;
        }

        .news-empty-sub {
            font-size: 12px;
            color: var(--c-text-light);
        }

        /* ========== Privacy ========== */
        .privacy-section {
            background: #fff;
            padding: 64px 0;
        }

        .privacy-card {
            background: var(--c-bg);
            border-radius: var(--radius-card);
            padding: 40px;
            height: 100%;
            border: 1px solid var(--c-border);
        }

        .privacy-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .privacy-card p {
            font-size: 13px;
            color: var(--c-text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .privacy-card p+p {
            margin-top: 12px;
        }

        .privacy-contact h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .privacy-contact p {
            font-size: 13px;
            color: var(--c-text-secondary);
            line-height: 1.8;
            margin-bottom: 4px;
        }

        .privacy-contact p i {
            color: var(--c-primary);
            margin-right: 6px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--c-secondary);
            padding-top: 72px;
        }

        .footer-cols {
            padding-bottom: 48px;
        }

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

        .site-footer .footer-logo-mark {
            width: 36px;
            height: 36px;
            background: var(--c-primary);
            color: #fff;
            font-weight: 800;
            font-size: 20px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .site-footer .footer-logo-text {
            color: #fff;
            font-size: 20px;
            font-weight: 800;
        }

        .site-footer .footer-desc {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 20px;
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.8);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            transition: all .2s ease;
        }

        .footer-social a:hover {
            background: rgba(255, 255, 255, 0.16);
            color: var(--c-primary);
            transform: translateY(-2px);
        }

        .site-footer h4 {
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer .footer-links li {
            line-height: 2.2;
        }

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            transition: color .2s ease;
        }

        .site-footer .footer-links a:hover {
            color: var(--c-primary);
        }

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

        .footer-contact li {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            line-height: 2.2;
        }

        .footer-contact li i {
            color: var(--c-primary);
            margin-right: 6px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 24px 0;
            text-align: center;
        }

        .footer-bottom p {
            margin: 0;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ========== Modal ========== */
        .custom-modal .modal-content {
            border: none;
            border-radius: 24px;
            padding: 12px;
            box-shadow: 0 24px 64px rgba(15, 27, 45, 0.18);
        }

        .custom-modal .modal-header {
            border: none;
            padding: 20px 24px 8px;
            position: relative;
        }

        .custom-modal .modal-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--c-text);
        }

        .custom-modal .modal-sub {
            font-size: 14px;
            color: var(--c-text-secondary);
            margin: 6px 0 0;
        }

        .custom-modal .btn-close {
            position: absolute;
            right: 18px;
            top: 18px;
            z-index: 10;
        }

        .custom-modal .modal-body {
            padding: 16px 24px 32px;
        }

        .modal-form .form-group {
            margin-bottom: 18px;
        }

        .modal-form label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--c-text);
            margin-bottom: 8px;
        }

        .modal-form .form-control,
        .modal-form .form-select {
            height: 48px;
            border-radius: var(--radius-small);
            border: 1px solid var(--c-border);
            padding: 0 16px;
            font-size: 14px;
            background: #fff;
            transition: all .2s ease;
        }

        .modal-form textarea.form-control {
            height: auto;
            padding: 12px 16px;
            resize: vertical;
        }

        .modal-form .form-control:focus,
        .modal-form .form-select:focus {
            border-color: var(--c-primary);
            box-shadow: 0 0 0 2px rgba(255, 107, 44, 0.4);
            outline: none;
        }

        .modal-form .btn-submit {
            width: 100%;
            height: 52px;
            border-radius: var(--radius-small);
            background: var(--c-primary);
            color: #fff;
            border: none;
            font-size: 15px;
            font-weight: 700;
            transition: all .25s ease;
        }

        .modal-form .btn-submit:hover {
            background: var(--c-primary-dark);
            transform: translateY(-1px);
        }

        .modal-form .btn-submit:disabled {
            background: var(--c-disabled-bg);
            color: var(--c-text-light);
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }

        .privacy-note {
            font-size: 12px;
            color: var(--c-text-light);
            line-height: 1.6;
            text-align: center;
            margin: 16px auto 0;
            max-width: 320px;
        }

        .privacy-note a {
            color: var(--c-primary);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1199.98px) {
            .header-searchbox {
                width: 280px;
            }

            .site-header.scrolled .header-searchbox {
                width: 40px;
            }

            .site-header.scrolled.search-expanded .header-searchbox {
                width: 280px;
            }

            .hero-section {
                padding: 72px 0 64px;
            }
        }

        @media (max-width: 991.98px) {
            .header-channel {
                display: none;
            }

            .site-header.scrolled .header-channel {
                display: none;
            }

            .section-block {
                padding: 72px 0;
            }

            .hero-section {
                padding: 56px 0 56px;
            }

            .hero-section h1 {
                font-size: 2.2rem;
            }

            .hero-visual img {
                height: 280px;
            }

            .stats-section {
                padding: 72px 0;
            }

            .stat-number {
                font-size: 2.2rem;
            }

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

            .footer-cols {
                row-gap: 32px;
            }
        }

        @media (max-width: 767.98px) {
            .section-block {
                padding: 56px 0;
            }

            .hero-section h1 {
                font-size: 1.9rem;
            }

            .hero-visual {
                margin-top: 8px;
            }

            .hero-visual img {
                height: 220px;
            }

            .stat-number {
                font-size: 2rem;
            }

            .news-feature-body {
                padding: 24px;
            }

            .news-feature-body h3 {
                font-size: 18px;
            }

            .privacy-card {
                padding: 28px;
            }

            .cta-inner h2 {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 575.98px) {
            .hero-section h1 {
                font-size: 1.75rem;
                line-height: 1.3;
            }

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

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

            .solution-card {
                padding: 24px 20px;
            }

            .solution-sub-link {
                margin-top: 32px;
            }

            .stat-item {
                padding: 16px 8px;
            }

            .stat-number {
                font-size: 1.75rem;
            }

            .news-mini {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                padding: 16px 18px;
            }

            .news-mini-title {
                white-space: normal;
            }

            .news-metas {
                flex-wrap: wrap;
            }

            .privacy-section {
                padding: 48px 0;
            }

            .site-footer {
                padding-top: 56px;
            }

            .custom-modal .modal-body,
            .custom-modal .modal-header {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

/* roulang page: category1 */
:root {
            --orange: #FF6B2C;
            --orange-dark: #E85A1F;
            --navy: #0F1B2D;
            --green: #3DDC8E;
            --bg: #F5F3F0;
            --white: #FFFFFF;
            --ink: #22202A;
            --ink-2: #6A6A75;
            --ink-3: #A5A5AF;
            --border: #E8E4DE;
            --badge-bg: #FFE8DD;
            --badge-text: #D9511D;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 20px rgba(15, 27, 45, 0.06);
            --shadow-hover: 0 12px 32px rgba(255, 107, 44, 0.14);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--ink);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }
        img {
            max-width: 100%;
            vertical-align: middle;
            border: 0;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .container {
            max-width: 1320px;
        }

        /* ---------- 按钮 ---------- */
        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            transition: all .25s ease;
        }
        .btn-primary {
            background: var(--orange);
            border: none;
            color: #fff;
            padding: 0 32px;
            height: 48px;
            line-height: 48px;
            box-shadow: 0 4px 14px rgba(255, 107, 44, .25);
        }
        .btn-primary:hover {
            background: var(--orange-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(255, 107, 44, .32);
            color: #fff;
        }
        .btn-primary:focus,
        .btn-primary:focus-visible {
            outline: 2px solid rgba(255, 107, 44, .4);
            outline-offset: 2px;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-white {
            background: #fff;
            color: var(--navy);
            border: none;
            padding: 0 32px;
            height: 48px;
            line-height: 48px;
            border-radius: var(--radius-btn);
            font-weight: 600;
        }
        .btn-white:hover {
            background: #F0F0F0;
            color: var(--navy);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, .9);
            color: #fff;
            background: transparent;
            padding: 0 28px;
            height: 48px;
            line-height: 44px;
            border-radius: var(--radius-btn);
            font-weight: 600;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .12);
            color: #fff;
        }
        .btn-outline-dark {
            border: 2px solid var(--navy);
            color: var(--navy);
            background: transparent;
            padding: 0 28px;
            height: 48px;
            line-height: 44px;
            border-radius: var(--radius-btn);
            font-weight: 600;
        }
        .btn-outline-dark:hover {
            background: rgba(255, 107, 44, .08);
            border-color: var(--orange);
            color: var(--orange);
        }
        .btn:disabled {
            background: #E9E9ED;
            color: #A5A5AF;
            box-shadow: none;
            cursor: not-allowed;
            transform: none;
        }

        /* ---------- 顶部导航 ---------- */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1030;
            box-shadow: 0 2px 12px rgba(15, 27, 45, .04);
        }
        .site-header .container {
            display: flex;
            flex-direction: column;
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 14px 0;
            transition: all .3s ease;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--orange);
            color: #fff;
            font-weight: 800;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -1px;
            box-shadow: 0 4px 12px rgba(255, 107, 44, .35);
        }
        .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: .5px;
        }
        .logo-text span {
            color: var(--orange);
            font-weight: 800;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .search-wrap {
            display: flex;
            align-items: center;
            background: #f5f4f2;
            border: 1px solid var(--border);
            border-radius: 999px;
            height: 40px;
            width: 280px;
            padding-left: 16px;
            transition: all .3s ease;
        }
        .search-wrap:focus-within {
            border-color: var(--orange);
            box-shadow: 0 0 0 3px rgba(255, 107, 44, .12);
            background: #fff;
        }
        .search-wrap .bi-search {
            color: var(--ink-3);
            font-size: 15px;
            margin-right: 8px;
        }
        .search-wrap input {
            border: none;
            outline: none;
            background: transparent;
            flex: 1;
            font-size: 14px;
            color: var(--ink);
        }
        .search-wrap input::placeholder {
            color: var(--ink-3);
        }
        .search-btn {
            border: none;
            background: var(--orange);
            color: #fff;
            height: 32px;
            padding: 0 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
            margin-right: 3px;
            transition: background .2s ease;
        }
        .search-btn:hover {
            background: var(--orange-dark);
        }
        .btn-consult {
            height: 40px;
            line-height: 40px;
            padding: 0 22px;
            font-size: 14px;
            border-radius: 999px;
        }
        .navbar-toggler {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: 8px;
            width: 42px;
            height: 42px;
            color: var(--ink);
            font-size: 20px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all .2s ease;
        }
        .navbar-toggler:hover {
            border-color: var(--orange);
            color: var(--orange);
        }
        .header-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding: 0;
            transition: all .3s ease;
        }
        .channel-nav ul {
            list-style: none;
            display: flex;
            gap: 6px;
            margin: 0;
            padding: 0;
        }
        .channel-nav li a {
            display: block;
            padding: 13px 20px;
            font-size: 15px;
            font-weight: 500;
            color: var(--ink);
            border-bottom: 3px solid transparent;
            transition: all .25s ease;
        }
        .channel-nav li a:hover {
            color: var(--orange);
        }
        .channel-nav li.active a {
            color: var(--orange);
            border-bottom-color: var(--orange);
            font-weight: 600;
        }
        .hot-trends {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--ink-3);
            padding: 10px 0;
        }
        .hot-label {
            display: flex;
            align-items: center;
            gap: 4px;
            color: var(--orange);
            font-weight: 600;
        }
        .hot-trends a {
            color: var(--ink-3);
            transition: color .2s ease;
        }
        .hot-trends a:hover {
            color: var(--orange);
        }
        .site-header.scrolled .container {
            flex-direction: row;
            align-items: center;
            gap: 24px;
        }
        .site-header.scrolled .header-top {
            padding: 10px 0;
            flex: 1;
        }
        .site-header.scrolled .search-wrap {
            width: 42px;
            padding: 0;
            justify-content: center;
            background: transparent;
            border-color: transparent;
            cursor: pointer;
        }
        .site-header.scrolled .search-wrap input {
            display: none;
        }
        .site-header.scrolled .search-wrap .bi-search {
            margin: 0;
            font-size: 18px;
            color: var(--ink);
        }
        .site-header.scrolled .search-wrap.expanded {
            width: 260px;
            background: #f5f4f2;
            border-color: var(--border);
            padding-left: 16px;
        }
        .site-header.scrolled .search-wrap.expanded input {
            display: block;
        }
        .site-header.scrolled .search-btn {
            display: none;
        }
        .site-header.scrolled .search-wrap.expanded .search-btn {
            display: flex;
        }
        .site-header.scrolled .header-bottom {
            border-top: none;
        }
        .site-header.scrolled .hot-trends {
            display: none;
        }

        /* 移动端导航折叠 */
        .mobile-panel {
            display: none;
            flex-direction: column;
            gap: 12px;
            padding: 16px 0 20px;
        }
        .mobile-panel.open {
            display: flex;
        }
        .mobile-panel .search-wrap {
            width: 100%;
            height: 44px;
        }
        .mobile-panel .channel-nav ul {
            flex-direction: column;
            gap: 0;
        }
        .mobile-panel .channel-nav li a {
            padding: 12px 8px;
            border-bottom: 1px solid var(--border);
            font-size: 15px;
        }
        .mobile-panel .channel-nav li.active a {
            color: var(--orange);
            background: rgba(255, 107, 44, .04);
            border-radius: 8px;
        }
        .mobile-panel .hot-trends {
            flex-wrap: wrap;
            padding: 4px 0 0;
            gap: 10px;
        }

        /* ---------- 分类 Hero ---------- */
        .cate-hero {
            background: var(--navy);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: multiply;
            position: relative;
            padding: 72px 0 72px;
            color: #fff;
            border-bottom: 4px solid var(--orange);
        }
        .cate-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, var(--navy) 20%, rgba(15, 27, 45, .65) 70%, rgba(15, 27, 45, .3) 100%);
            pointer-events: none;
        }
        .cate-hero .container {
            position: relative;
            z-index: 2;
        }
        .cate-hero .breadcrumb-nav {
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 14px;
        }
        .cate-hero .breadcrumb-nav a {
            color: rgba(255, 255, 255, .7);
        }
        .cate-hero .breadcrumb-nav a:hover {
            color: #fff;
        }
        .cate-hero .breadcrumb-nav .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, .4);
        }
        .cate-hero .breadcrumb-nav .current {
            color: #fff;
            font-weight: 600;
        }
        .cate-hero h1 {
            font-size: 2.75rem;
            font-weight: 700;
            line-height: 1.25;
            margin: 0 0 16px;
            letter-spacing: .5px;
        }
        .cate-hero h1 .accent {
            color: var(--orange);
        }
        .cate-hero .hero-desc {
            max-width: 640px;
            font-size: 16px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .82);
            margin-bottom: 28px;
        }
        .cate-hero .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .cate-hero .hero-geo {
            position: absolute;
            right: 60px;
            bottom: 40px;
            z-index: 2;
            width: 180px;
            height: 180px;
            border-radius: 24px;
            background: url('/assets/images/coverpic/cover-6.webp') center/cover no-repeat;
            transform: rotate(6deg);
            box-shadow: 0 24px 50px rgba(0, 0, 0, .3);
            border: 3px solid rgba(255, 255, 255, .2);
        }
        .cate-hero .hero-geo::after {
            content: "";
            position: absolute;
            top: -14px;
            right: -14px;
            width: 44px;
            height: 44px;
            background: var(--green);
            border-radius: 10px;
        }

        /* ---------- Section 通用 ---------- */
        .cat-section {
            padding: 96px 0;
        }
        .cat-section .sec-head {
            margin-bottom: 40px;
        }
        .cat-section .sec-tag {
            display: inline-block;
            background: var(--badge-bg);
            color: var(--badge-text);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 14px;
        }
        .cat-section .sec-title {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--ink);
            margin-bottom: 14px;
        }
        .cat-section .sec-sub {
            color: var(--ink-2);
            font-size: 15px;
            max-width: 720px;
        }

        /* ---------- 服务卡 ---------- */
        .service-section {
            background: var(--white);
        }
        .service-card {
            display: flex;
            flex-direction: column;
            height: 100%;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
        }
        .service-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 107, 44, .4);
            transform: translateY(-4px);
        }
        .service-card .card-img {
            height: 220px;
            overflow: hidden;
            background: #f0eeec;
        }
        .service-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .service-card:hover .card-img img {
            transform: scale(1.04);
        }
        .service-card .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .service-card .card-badge {
            display: inline-block;
            align-self: flex-start;
            background: var(--badge-bg);
            color: var(--badge-text);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }
        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 10px;
        }
        .service-card p {
            font-size: 14px;
            color: var(--ink-2);
            line-height: 1.7;
            flex: 1;
        }
        .service-card .chip-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }
        .service-card .chip-list span {
            background: #f5f4f2;
            border: 1px solid var(--border);
            font-size: 12px;
            color: var(--ink-2);
            padding: 4px 12px;
            border-radius: 999px;
        }

        /* ---------- 流程 ---------- */
        .process-section {
            background: var(--bg);
        }
        .process-steps {
            counter-reset: step;
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 24px;
            margin-top: 40px;
        }
        .process-step {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            position: relative;
            transition: all .3s ease;
        }
        .process-step:hover {
            border-color: var(--orange);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .process-step .step-num {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--orange);
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            box-shadow: 0 6px 16px rgba(255, 107, 44, .3);
        }
        .process-step h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 13px;
            color: var(--ink-2);
            line-height: 1.65;
            margin: 0;
        }

        /* ---------- 数据带 ---------- */
        .stats-band {
            background: var(--navy);
            color: #fff;
            padding: 88px 0;
            border-top: 1px solid rgba(255, 255, 255, .08);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            align-items: center;
        }
        .stat-item {
            text-align: center;
            padding: 12px 20px;
        }
        .stat-item .stat-label {
            font-size: 12px;
            color: rgba(255, 255, 255, .5);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }
        .stat-item .stat-num {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.15;
            color: var(--green);
            font-variant-numeric: tabular-nums;
        }
        .stat-item .stat-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            margin-top: 10px;
        }
        .stat-divider {
            width: 1px;
            height: 72px;
            background: rgba(255, 255, 255, .15);
            margin: 0 auto;
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            background: var(--white);
        }
        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            box-shadow: 0 2px 10px rgba(15, 27, 45, .03);
            overflow: hidden;
        }
        .faq-accordion .accordion-item:last-child {
            margin-bottom: 0;
        }
        .faq-accordion .accordion-button {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            background: #fff;
            padding: 18px 24px;
            border: none;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 2px rgba(255, 107, 44, .3);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--orange);
            background: rgba(255, 107, 44, .04);
            box-shadow: none;
        }
        .faq-accordion .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%230F1B2D' viewBox='0 0 16 16'%3E%3Cpath d='M8 4a.5.5 0 0 1 .5.5v3h3a.5.5 0 0 1 0 1h-3v3a.5.5 0 0 1-1 0v-3h-3a.5.5 0 0 1 0-1h3v-3A.5.5 0 0 1 8 4z'/%3E%3C/svg%3E");
            transition: transform .25s ease;
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23FF6B2C' viewBox='0 0 16 16'%3E%3Cpath d='M4 8a.5.5 0 0 1 .5-.5h7a.5.5 0 0 1 0 1h-7A.5.5 0 0 1 4 8z'/%3E%3C/svg%3E");
        }
        .faq-accordion .accordion-body {
            padding: 8px 24px 22px;
            font-size: 14px;
            color: var(--ink-2);
            line-height: 1.75;
            background: #fff;
            border-top: 1px solid rgba(232, 228, 222, .6);
        }

        /* ---------- CTA ---------- */
        .cta-band {
            background: var(--orange);
            position: relative;
            overflow: hidden;
            padding: 72px 0;
        }
        .cta-band::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, .1);
            transform: rotate(20deg);
            clip-path: polygon(0 0, 100% 0, 0 100%);
        }
        .cta-band::after {
            content: "";
            position: absolute;
            bottom: -60px;
            left: 100px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .12);
        }
        .cta-band .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
        }
        .cta-band h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
        }
        .cta-band p {
            color: rgba(255, 255, 255, .9);
            font-size: 15px;
            margin: 0;
        }
        .cta-band .btn-white {
            border-radius: 999px;
            padding: 0 36px;
            height: 52px;
            line-height: 52px;
            font-size: 15px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, .12);
        }

        /* ---------- 分类切换 ---------- */
        .cat-switch {
            padding: 80px 0;
            background: var(--bg);
            text-align: center;
        }
        .cat-switch h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
        }
        .cat-switch p {
            color: var(--ink-2);
            font-size: 14px;
            margin-bottom: 28px;
        }
        .cat-pills {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
        }
        .cat-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--border);
            padding: 12px 26px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            transition: all .25s ease;
            box-shadow: 0 2px 8px rgba(15, 27, 45, .03);
        }
        .cat-pill:hover {
            border-color: var(--orange);
            color: var(--orange);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .cat-pill.active {
            background: var(--orange);
            color: #fff;
            border-color: var(--orange);
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: var(--navy);
            color: rgba(255, 255, 255, .85);
            padding: 64px 0 0;
        }
        .site-footer .footer-cols {
            padding-bottom: 48px;
        }
        .site-footer h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--orange);
            color: #fff;
            font-weight: 800;
            font-size: 19px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .footer-logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 20px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, .8);
            font-size: 16px;
            transition: all .2s ease;
        }
        .footer-social a:hover {
            background: rgba(255, 255, 255, .18);
            color: var(--orange);
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            line-height: 2.2;
        }
        .footer-links a {
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
        }
        .footer-links a:hover {
            color: var(--orange);
        }
        .footer-contact {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-contact li {
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-contact li i {
            color: var(--orange);
            font-size: 14px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 24px 0;
        }
        .footer-bottom p {
            margin: 0;
            font-size: 12px;
            color: rgba(255, 255, 255, .45);
            text-align: center;
        }

        /* ---------- Modal ---------- */
        .modal-content {
            border-radius: 24px;
            border: none;
            padding: 16px;
            box-shadow: 0 24px 64px rgba(15, 27, 45, .18);
        }
        .modal-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--ink);
        }
        .modal-sub {
            font-size: 14px;
            color: var(--ink-2);
            margin-bottom: 20px;
        }
        .modal .form-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
        }
        .modal .form-control,
        .modal .form-select {
            height: 48px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 0 16px;
            font-size: 14px;
            color: var(--ink);
            background: #fff;
        }
        .modal .form-control:focus,
        .modal .form-select:focus {
            border-color: var(--orange);
            box-shadow: 0 0 0 2px rgba(255, 107, 44, .18);
            outline: none;
        }
        .modal textarea.form-control {
            height: 100px;
            padding-top: 12px;
            resize: none;
        }
        .modal .btn-primary {
            width: 100%;
            height: 52px;
            line-height: 52px;
            font-size: 15px;
        }
        .privacy-note {
            font-size: 12px;
            color: var(--ink-3);
            line-height: 1.6;
            text-align: center;
            margin-top: 16px;
        }
        .privacy-note a {
            color: var(--orange);
        }

        /* ---------- 响应式 ---------- */
        @media (max-width: 1199.98px) {
            .hot-trends {
                display: none;
            }
            .site-header.scrolled .container {
                flex-direction: column;
                align-items: stretch;
            }
            .site-header.scrolled .header-top {
                flex: auto;
            }
            .site-header.scrolled .header-bottom {
                display: none;
            }
        }
        @media (max-width: 991.98px) {
            .header-bottom {
                display: none;
            }
            .navbar-toggler {
                display: flex;
            }
            .header-actions .search-wrap {
                display: none;
            }
            .site-header.scrolled .search-wrap {
                display: none;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-divider {
                display: none;
            }
            .cate-hero .hero-geo {
                display: none;
            }
            .cat-section .sec-title {
                font-size: 1.7rem;
            }
        }
        @media (max-width: 767.98px) {
            .cat-section {
                padding: 64px 0;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stats-band {
                padding: 56px 0;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px 10px;
            }
            .stat-item .stat-num {
                font-size: 2rem;
            }
            .cta-band .container {
                flex-direction: column;
                text-align: center;
            }
            .cta-band h2 {
                font-size: 1.5rem;
            }
            .cate-hero {
                padding: 56px 0;
            }
            .cate-hero h1 {
                font-size: 1.9rem;
            }
        }
        @media (max-width: 575.98px) {
            .header-top {
                padding: 12px 0;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-mark {
                width: 34px;
                height: 34px;
            }
            .btn-consult {
                display: none;
            }
            .cate-hero .hero-desc {
                font-size: 14px;
            }
            .cat-section .sec-title {
                font-size: 1.45rem;
            }
            .sec-sub {
                font-size: 13px;
            }
            .service-card .card-img {
                height: 180px;
            }
            .service-card .card-body {
                padding: 18px;
            }
            .footer-cols {
                row-gap: 30px;
            }
            .modal-content {
                padding: 8px;
            }
        }

/* roulang page: article */
:root {
            --primary: #FF6B2C;
            --primary-dark: #E85A1F;
            --deep-blue: #0F1B2D;
            --accent: #3DDC8E;
            --bg: #F5F3F0;
            --card-bg: #FFFFFF;
            --text-main: #22202A;
            --text-secondary: #6A6A75;
            --text-light: #A5A5AF;
            --border: #E8E4DE;
            --badge-bg: #FFE8DD;
            --badge-text: #D9511D;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 4px 20px rgba(15, 27, 45, 0.06);
            --shadow-hover: 0 12px 32px rgba(255, 107, 44, 0.14);
            --transition: all .25s ease;
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.75;
            margin: 0;
            padding: 0;
        }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        img { max-width: 100%; height: auto; }
        button, input, select, textarea { font-family: inherit; }
        .container { max-width: 1320px; }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: #fff;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
            box-shadow: 0 4px 20px rgba(15, 27, 45, 0.06);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            gap: 24px;
        }
        .brand-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
        .logo-mark {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 19px;
            line-height: 1;
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--deep-blue);
            letter-spacing: -0.4px;
            white-space: nowrap;
        }
        .header-actions { display: flex; align-items: center; gap: 12px; }
        .search-box {
            width: 280px;
            height: 42px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: var(--bg);
            padding: 0 16px;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 107, 44, 0.12);
        }
        .search-box i { color: var(--text-light); font-size: 14px; flex-shrink: 0; }
        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            width: 100%;
            color: var(--text-main);
        }
        .btn-cta {
            height: 42px;
            padding: 0 26px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(255, 107, 44, 0.25);
            color: #fff;
        }
        .btn-cta:active { transform: translateY(0); }
        .btn-cta:focus-visible {
            outline: 2px solid rgba(255, 107, 44, 0.4);
            outline-offset: 2px;
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-main);
            font-size: 20px;
            align-items: center;
            justify-content: center;
            padding: 0;
        }
        .nav-toggle:hover { border-color: var(--primary); color: var(--primary); }

        .channel-nav { border-top: 1px solid var(--border); background: #fff; transition: var(--transition); }
        .channel-nav ul {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 32px;
            margin: 0;
            padding: 0;
        }
        .channel-nav li a {
            display: block;
            padding: 13px 0;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            position: relative;
        }
        .channel-nav li a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--primary);
            transition: var(--transition);
            border-radius: 3px 3px 0 0;
        }
        .channel-nav li a:hover::after,
        .channel-nav li.active a::after { width: 100%; }
        .channel-nav li.active a { color: var(--primary); font-weight: 600; }
        .hot-trends { font-size: 13px; color: var(--text-light); }
        .hot-trends a { color: #8a8a96; margin-left: 12px; transition: var(--transition); }
        .hot-trends a:hover { color: var(--primary); }

        @media (max-width: 991.98px) {
            .header-top { flex-wrap: wrap; padding: 10px 0; }
            .header-search { display: none; }
            .nav-toggle { display: inline-flex; }
            .channel-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); box-shadow: 0 12px 32px rgba(15, 27, 45, 0.1); }
            .channel-nav.open { display: block; }
            .channel-nav.open ul { flex-direction: column; align-items: stretch; gap: 0; padding: 12px 0; }
            .channel-nav.open li a { padding: 13px 20px; border-bottom: 1px solid #f5f3f0; }
            .channel-nav.open .hot-trends { padding: 12px 20px; }
            .channel-nav.open .hot-trends span { display: block; margin-bottom: 8px; }
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-bar { padding: 20px 0 0; }
        .breadcrumb { margin: 0; flex-wrap: wrap; }
        .breadcrumb-item { font-size: 14px; color: var(--text-light); }
        .breadcrumb-item a { color: var(--text-secondary); }
        .breadcrumb-item a:hover { color: var(--primary); }
        .breadcrumb-item.active { color: var(--text-main); font-weight: 500; }
        .breadcrumb-item + .breadcrumb-item::before { content: "/"; color: #C9C9D0; }

        /* ===== 文章主体 ===== */
        .article-section { padding: 28px 0 64px; }
        .article-wrap { max-width: 880px; margin: 0 auto; }
        .article-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 48px;
            border: 1px solid rgba(255, 255, 255, 0.8);
        }
        .article-hero-img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            border-radius: 12px;
            margin-bottom: 28px;
        }
        .article-title {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 16px;
            color: var(--text-main);
            letter-spacing: -0.5px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .category-badge {
            background: var(--badge-bg);
            color: var(--badge-text);
            font-size: 12px;
            padding: 4px 14px;
            border-radius: 999px;
            font-weight: 600;
            display: inline-block;
        }
        .meta-item { font-size: 13px; color: var(--text-light); display: flex; align-items: center; gap: 6px; }
        .meta-item i { font-size: 14px; }
        .article-divider { border: none; border-top: 1px solid var(--border); margin: 24px 0 32px; }

        .article-content { font-size: 16px; line-height: 1.85; color: var(--text-main); word-break: break-word; }
        .article-content p { margin-bottom: 28px; }
        .article-content h2 { font-size: 1.5rem; font-weight: 700; margin: 36px 0 16px; color: var(--text-main); }
        .article-content h3 { font-size: 1.25rem; font-weight: 700; margin: 32px 0 16px; color: var(--text-main); }
        .article-content h4 { font-size: 1.1rem; font-weight: 600; margin: 28px 0 12px; color: var(--text-main); }
        .article-content blockquote {
            border-left: 3px solid var(--primary);
            background: var(--bg);
            padding: 16px 20px;
            margin: 24px 0;
            border-radius: 0 8px 8px 0;
            color: var(--text-secondary);
            font-style: normal;
        }
        .article-content img { border-radius: 12px; margin: 24px 0; max-width: 100%; }
        .article-content ul, .article-content ol { padding-left: 24px; margin-bottom: 24px; }
        .article-content li { margin-bottom: 8px; }
        .article-content li::marker { color: var(--primary); }
        .article-content a { color: var(--primary); text-decoration: underline; }
        .article-content a:hover { color: var(--primary-dark); }
        .article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; }
        .article-content table th, .article-content table td { border: 1px solid var(--border); padding: 10px 14px; font-size: 14px; }
        .article-content table th { background: var(--bg); font-weight: 600; }

        /* ===== 标签 & 分享 ===== */
        .article-tags {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .tag-item {
            background: var(--bg);
            color: var(--text-secondary);
            font-size: 13px;
            padding: 5px 14px;
            border-radius: 999px;
            transition: var(--transition);
        }
        .tag-item:hover { background: var(--badge-bg); color: var(--badge-text); }
        .share-links { margin-left: auto; display: flex; gap: 8px; }
        .share-links a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 14px;
            transition: var(--transition);
        }
        .share-links a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }

        /* ===== 返回链接 ===== */
        .back-link-wrap { margin-top: 28px; }
        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--primary);
            font-weight: 500;
            transition: var(--transition);
        }
        .back-link:hover { color: var(--primary-dark); gap: 10px; }

        /* ===== 相关推荐 ===== */
        .related-section { padding: 56px 0; background: var(--bg); }
        .section-title-wrap { text-align: center; margin-bottom: 40px; }
        .section-title-wrap h2 { font-size: 1.8rem; font-weight: 700; color: var(--text-main); margin-bottom: 8px; letter-spacing: -0.3px; }
        .section-title-wrap .section-sub { font-size: 14px; color: var(--text-secondary); }
        .related-card {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            padding: 24px;
            border: 1px solid transparent;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover { border-color: var(--primary); box-shadow: var(--shadow-hover); transform: translateY(-4px); }
        .related-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 10px;
            line-height: 1.5;
            color: var(--text-main);
            transition: var(--transition);
        }
        .related-card:hover h3 { color: var(--primary); }
        .related-card .related-time { font-size: 12px; color: var(--text-light); margin-top: auto; }

        /* ===== CTA ===== */
        .cta-banner {
            background: var(--deep-blue);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(255, 107, 44, 0.15);
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            right: 140px;
            bottom: -50px;
            border-left: 60px solid transparent;
            border-bottom: 80px solid rgba(61, 220, 142, 0.18);
        }
        .cta-banner h2 { color: #fff; font-size: 1.8rem; font-weight: 700; margin-bottom: 6px; }
        .cta-banner p { color: rgba(255, 255, 255, 0.7); margin-bottom: 0; font-size: 15px; }
        .cta-banner .btn-white {
            height: 46px;
            padding: 0 30px;
            border-radius: var(--radius-sm);
            background: #fff;
            color: var(--deep-blue);
            font-weight: 600;
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .cta-banner .btn-white:hover { background: #f0f0f0; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15); }

        /* ===== 页脚 ===== */
        .site-footer { background: var(--deep-blue); color: #fff; padding: 64px 0 0; }
        .footer-cols { margin-bottom: 32px; }
        .footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
        .footer-logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
        }
        .footer-logo-text { font-size: 20px; font-weight: 700; color: #fff; }
        .footer-desc { font-size: 14px; color: rgba(255, 255, 255, 0.7); line-height: 1.7; margin-bottom: 20px; max-width: 320px; }
        .footer-social { display: flex; gap: 10px; }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            font-size: 15px;
        }
        .footer-social a:hover { background: var(--primary); transform: translateY(-2px); }
        .site-footer h4 { font-size: 14px; font-weight: 600; margin-bottom: 16px; color: #fff; }
        .footer-links, .footer-contact { list-style: none; padding: 0; margin: 0; }
        .footer-links li { margin-bottom: 8px; }
        .footer-links li a { font-size: 13px; color: rgba(255, 255, 255, 0.7); line-height: 1.8; transition: var(--transition); }
        .footer-links li a:hover { color: var(--primary); }
        .footer-contact li { font-size: 13px; color: rgba(255, 255, 255, 0.7); margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
        .footer-contact li i { color: var(--primary); font-size: 14px; }
        .footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 22px 0; }
        .footer-bottom p { margin: 0; font-size: 12px; color: rgba(255, 255, 255, 0.5); text-align: center; }

        /* ===== 无文章状态 ===== */
        .not-found-card { text-align: center; padding: 80px 24px; }
        .not-found-card .nf-icon { font-size: 52px; color: var(--text-light); margin-bottom: 20px; display: block; }
        .not-found-card h2 { font-size: 1.5rem; color: var(--text-main); margin-bottom: 12px; font-weight: 700; }
        .not-found-card p { color: var(--text-secondary); margin-bottom: 28px; }

        /* ===== 响应式 ===== */
        @media (max-width: 1200px) {
            .article-wrap { max-width: 820px; }
        }
        @media (max-width: 991.98px) {
            .article-card { padding: 28px; }
            .article-title { font-size: 1.85rem; }
            .article-hero-img { height: 260px; }
            .cta-banner { padding: 48px 0; }
            .site-footer { padding-top: 48px; }
            .footer-cols > div { margin-bottom: 32px; }
        }
        @media (max-width: 767.98px) {
            .article-card { padding: 20px; border-radius: 12px; }
            .article-title { font-size: 1.55rem; }
            .article-hero-img { height: 200px; }
            .article-meta { gap: 10px; }
            .share-links { margin-left: 0; }
            .cta-banner { padding: 40px 0; }
            .cta-banner h2 { font-size: 1.4rem; }
            .section-title-wrap h2 { font-size: 1.5rem; }
        }
        @media (max-width: 575.98px) {
            .container { padding-left: 16px; padding-right: 16px; }
            .header-top { padding: 10px 0; }
            .logo-text { font-size: 17px; }
            .logo-mark { width: 30px; height: 30px; font-size: 16px; }
            .article-section { padding: 16px 0 48px; }
            .article-card { padding: 16px 14px; }
            .article-title { font-size: 1.35rem; }
            .article-content { font-size: 15px; line-height: 1.75; }
            .article-content p { margin-bottom: 20px; }
            .article-tags { flex-direction: column; align-items: flex-start; }
            .share-links { margin-left: 0; margin-top: 8px; }
            .related-card { padding: 18px; }
            .footer-cols > div { margin-bottom: 28px; }
        }

/* roulang page: category2 */
:root {
            --primary: #FF6B2C;
            --primary-dark: #E85A1F;
            --dark: #0F1B2D;
            --dark-2: #16263D;
            --green: #3DDC8E;
            --bg: #F5F3F0;
            --card: #FFFFFF;
            --text: #22202A;
            --text-sub: #6A6A75;
            --text-light: #A5A5AF;
            --border: #E8E4DE;
            --badge-bg: #FFE8DD;
            --badge-text: #D9511D;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow: 0 4px 20px rgba(15, 27, 45, 0.06);
            --shadow-hover: 0 12px 32px rgba(255, 107, 44, 0.14);
            --section-pad: 96px;
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg);
            color: var(--text);
            font-size: 1rem;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            vertical-align: middle;
        }

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

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

        .container {
            max-width: 1320px;
        }

        .section {
            padding: var(--section-pad) 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-sub {
            font-size: 1rem;
            color: var(--text-sub);
            max-width: 640px;
            margin-bottom: 40px;
        }

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

        /* ========== Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: #fff;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            box-shadow: 0 4px 24px rgba(15, 27, 45, 0.06);
        }

        .header-top {
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .site-header.scrolled .header-top {
            border-bottom: none;
        }

        .header-top-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 12px 0;
            transition: var(--transition);
        }

        .site-header.scrolled .header-top-inner {
            padding: 8px 0;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 10px;
            color: #fff;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -1px;
            box-shadow: 0 4px 12px rgba(255, 107, 44, 0.3);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

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

        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            height: 40px;
            padding: 0 4px 0 16px;
            transition: var(--transition);
            flex: 0 1 320px;
        }

        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 107, 44, 0.12);
        }

        .header-search i {
            color: var(--text-light);
            margin-right: 8px;
            font-size: 14px;
        }

        .header-search input {
            border: none;
            outline: none;
            background: transparent;
            flex: 1;
            font-size: 14px;
            color: var(--text);
            min-width: 0;
        }

        .header-search button {
            border: none;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            padding: 6px 18px;
            border-radius: 999px;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .header-search button:hover {
            background: var(--primary-dark);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 24px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .header-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            color: #fff;
            box-shadow: 0 6px 16px rgba(255, 107, 44, 0.3);
        }

        .header-nav-wrap {
            transition: var(--transition);
        }

        .header-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 8px 0;
            transition: var(--transition);
        }

        .channel-nav ul {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 32px;
            margin: 0;
            padding: 0;
        }

        .channel-nav ul li a {
            display: inline-block;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 6px 2px;
            position: relative;
            transition: var(--transition);
        }

        .channel-nav ul li a::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
            transition: var(--transition);
        }

        .channel-nav ul li a:hover {
            color: var(--primary);
        }

        .channel-nav ul li a:hover::after {
            width: 100%;
        }

        .channel-nav ul li.active a {
            color: var(--primary);
            font-weight: 700;
        }

        .channel-nav ul li.active a::after {
            width: 100%;
        }

        .header-trends {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-sub);
            white-space: nowrap;
            overflow: hidden;
        }

        .header-trends .trend-label {
            font-weight: 600;
            color: var(--text);
        }

        .header-trends a {
            color: var(--text-sub);
            padding: 2px 6px;
            border-radius: 6px;
        }

        .header-trends a:hover {
            color: var(--primary);
            background: var(--badge-bg);
        }

        .header-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text);
            cursor: pointer;
        }

        .site-header.scrolled .header-nav-wrap {
            display: none;
        }

        .site-header.scrolled {
            display: block;
        }

        .site-header.scrolled .header-top-inner {
            flex-wrap: nowrap;
        }

        /* 移动端折叠菜单 */
        .mobile-panel {
            display: none;
            padding: 16px 0;
            border-top: 1px solid var(--border);
            background: #fff;
        }

        .mobile-panel.open {
            display: block;
        }

        .mobile-panel .channel-nav ul {
            flex-direction: column;
            align-items: flex-start;
            gap: 12px;
            padding: 0;
        }

        .mobile-panel .header-search {
            width: 100%;
            margin-bottom: 16px;
            flex: none;
        }

        .mobile-panel .header-trends {
            flex-wrap: wrap;
            margin-top: 12px;
        }

        /* ========== Page Hero ========== */
        .page-hero {
            background: var(--dark);
            position: relative;
            overflow: hidden;
            min-height: 240px;
            display: flex;
            align-items: center;
            padding: 64px 0;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -40px;
            width: 280px;
            height: 280px;
            background: rgba(255, 107, 44, 0.15);
            border-radius: 50%;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            bottom: -30px;
            right: 18%;
            width: 120px;
            height: 120px;
            background: var(--green);
            clip-path: polygon(100% 0, 100% 100%, 0 100%);
            opacity: 0.2;
        }

        .page-hero .hero-inner {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .page-hero .breadcrumbs {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 16px;
        }

        .page-hero .breadcrumbs a {
            color: rgba(255, 255, 255, 0.6);
        }

        .page-hero .breadcrumbs a:hover {
            color: var(--primary);
        }

        .page-hero .breadcrumbs span {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.4);
        }

        .page-hero h1 {
            font-size: 2.75rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .page-hero h1 span {
            color: var(--primary);
        }

        .page-hero .lead {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 620px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .page-hero .hero-art {
            position: absolute;
            right: 40px;
            top: 50%;
            transform: translateY(-50%);
            width: 320px;
            height: 200px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 20px 48px rgba(0, 0, 0, 0.25);
            display: none;
        }

        .page-hero .hero-art img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.85;
        }

        /* ========== Feature Cards ========== */
        .feature-section {
            padding: var(--section-pad) 0 64px;
        }

        .feature-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            height: 100%;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }

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

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--badge-bg);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .feature-icon i {
            font-size: 24px;
            color: var(--badge-text);
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            background: var(--primary);
        }

        .feature-card:hover .feature-icon i {
            color: #fff;
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }

        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ========== Data Band ========== */
        .data-band {
            background: var(--dark);
            padding: 64px 0;
        }

        .data-item {
            text-align: center;
            padding: 20px;
        }

        .data-item .data-label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }

        .data-item .data-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--green);
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }

        .data-item .data-desc {
            font-size: 14px;
            color: #C7CDD4;
            margin-top: 6px;
        }

        .data-divider {
            width: 1px;
            background: rgba(255, 255, 255, 0.15);
            min-height: 80px;
            align-self: center;
        }

        /* ========== Scene Section ========== */
        .scene-section {
            padding: var(--section-pad) 0;
        }

        .scene-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }

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

        .scene-card .scene-img {
            height: 200px;
            overflow: hidden;
        }

        .scene-card .scene-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .scene-card:hover .scene-img img {
            transform: scale(1.05);
        }

        .scene-card .scene-body {
            padding: 24px;
        }

        .scene-card .scene-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .scene-card .scene-body p {
            font-size: 0.9rem;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .scene-tag {
            display: inline-block;
            background: var(--badge-bg);
            color: var(--badge-text);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        /* ========== Process Section ========== */
        .process-section {
            background: var(--card);
            padding: var(--section-pad) 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .process-step {
            position: relative;
            padding: 32px 24px 24px;
            text-align: center;
            background: var(--bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            height: 100%;
            transition: var(--transition);
        }

        .process-step:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }

        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            box-shadow: 0 6px 16px rgba(255, 107, 44, 0.3);
        }

        .process-step h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 0.85rem;
            color: var(--text-sub);
            line-height: 1.65;
            margin-bottom: 0;
        }

        .step-arrow {
            position: absolute;
            right: -18px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--border);
            font-size: 22px;
            z-index: 2;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: var(--section-pad) 0;
        }

        .faq-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            transition: var(--transition);
        }

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

        .faq-card .faq-header {
            padding: 20px 24px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-card .faq-header i {
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-card.active .faq-header i {
            transform: rotate(180deg);
        }

        .faq-card .faq-body {
            padding: 0 24px 20px;
            font-size: 0.9rem;
            color: var(--text-sub);
            line-height: 1.8;
            display: none;
        }

        .faq-card.active .faq-body {
            display: block;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            background: var(--primary);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 320px;
            height: 100%;
            background: linear-gradient(135deg, transparent 30%, rgba(255, 255, 255, 0.08) 50%, transparent 70%);
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -60px;
            left: 6%;
            width: 140px;
            height: 140px;
            background: rgba(255, 255, 255, 0.08);
            clip-path: polygon(100% 0, 100% 100%, 0 100%);
        }

        .cta-section .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 32px;
        }

        .cta-section .btn-light {
            background: #fff;
            color: var(--dark);
            font-weight: 600;
            height: 48px;
            padding: 0 36px;
            border-radius: var(--radius-sm);
            border: none;
            transition: var(--transition);
        }

        .cta-section .btn-light:hover {
            background: #F0F0F0;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }

        /* ========== Modal ========== */
        .modal-content {
            border: none;
            border-radius: 24px;
            padding: 16px;
            box-shadow: 0 24px 64px rgba(15, 27, 45, 0.18);
        }

        .modal-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
        }

        .modal-subtitle {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 20px;
        }

        .modal-body label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            display: block;
        }

        .modal-body .form-control,
        .modal-body .form-select {
            height: 48px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text);
            background: #fff;
        }

        .modal-body .form-control:focus,
        .modal-body .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 107, 44, 0.12);
        }

        .modal-body .btn-primary {
            width: 100%;
            height: 52px;
            background: var(--primary);
            border: none;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
        }

        .modal-body .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
        }

        .privacy-note {
            font-size: 12px;
            color: var(--text-light);
            line-height: 1.6;
            text-align: center;
            margin-top: 14px;
        }

        .privacy-note a {
            color: var(--primary);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--dark);
            color: #fff;
            padding-top: 64px;
        }

        .footer-cols {
            padding-bottom: 40px;
        }

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

        .footer-logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            color: #fff;
            font-size: 20px;
            font-weight: 800;
        }

        .footer-logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            max-width: 320px;
            margin-bottom: 20px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: rgba(255, 255, 255, 0.14);
            color: var(--primary);
        }

        .site-footer h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-links,
        .footer-contact {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-links li a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 2.2;
            transition: var(--transition);
        }

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

        .footer-contact li {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 2.2;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact i {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 24px 0;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 0;
        }

        /* ========== Responsive ========== */
        @media (min-width: 992px) {
            .site-header.scrolled {
                display: block;
            }
            .page-hero .hero-art {
                display: block;
            }
        }

        @media (max-width: 991.98px) {
            .header-top-inner {
                flex-wrap: wrap;
            }
            .header-search {
                order: 3;
                flex: 1 1 100%;
                margin-top: 8px;
            }
            .channel-nav {
                display: none;
            }
            .header-toggle {
                display: inline-flex;
            }
            .header-nav-wrap {
                display: none;
            }
            .header-trends {
                display: none;
            }
            .site-header.scrolled .header-nav-wrap {
                display: none;
            }
            .section {
                --section-pad: 72px;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .data-number {
                font-size: 2.2rem !important;
            }
            .data-divider {
                min-height: 60px;
            }
            .step-arrow {
                display: none;
            }
        }

        @media (max-width: 767.98px) {
            .page-hero {
                padding: 48px 0;
            }
            .page-hero h1 {
                font-size: 1.75rem;
            }
            .section {
                --section-pad: 56px;
            }
            .feature-card {
                margin-bottom: 16px;
            }
            .scene-card {
                margin-bottom: 16px;
            }
            .process-step {
                margin-bottom: 16px;
            }
            .data-band .row {
                gap: 0;
            }
            .data-divider {
                display: none;
            }
            .data-item {
                padding: 16px;
            }
        }

        @media (max-width: 575.98px) {
            .header-search {
                order: 3;
                flex: 1 1 100%;
            }
            .header-cta {
                display: none;
            }
            .page-hero {
                min-height: auto;
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .logo-text {
                font-size: 18px;
            }
            .data-item .data-number {
                font-size: 2rem;
            }
        }