/* roulang page: index */
:root {
            --color-primary: #1E3A5F;
            --color-primary-light: #2D5F9E;
            --color-accent: #0F766E;
            --color-accent-light: #14B8A6;
            --color-bg: #F8FAFC;
            --color-card-bg: #FFFFFF;
            --color-text-primary: #1E293B;
            --color-text-secondary: #475569;
            --color-text-muted: #94A3B8;
            --color-border: #E2E8F0;
            --radius-xl: 1rem;
            --radius-2xl: 1.25rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 4px 20px rgba(30, 58, 95, 0.08);
            --shadow-card-hover: 0 12px 32px rgba(30, 58, 95, 0.15);
            --shadow-nav: 0 2px 24px rgba(30, 58, 95, 0.12);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* 悬浮胶囊导航 */
        .nav-capsule {
            position: fixed;
            top: 0.75rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - 2rem);
            max-width: 1100px;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 9999px;
            padding: 0.6rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-nav);
            transition: all var(--transition-base);
            border: 1px solid rgba(226, 232, 240, 0.6);
        }

        .nav-capsule.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 28px rgba(30, 58, 95, 0.18);
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--color-accent);
            border-radius: 8px;
            margin-right: 0.4rem;
            vertical-align: middle;
            position: relative;
            top: -1px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .nav-links li a {
            display: block;
            padding: 0.45rem 0.85rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-base);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--color-primary);
            background: rgba(30, 58, 95, 0.06);
        }
        .nav-links li a.active {
            color: var(--color-primary);
            font-weight: 700;
            background: rgba(30, 58, 95, 0.08);
        }
        .nav-links li a:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 2px;
        }

        .nav-cta-btn {
            background: var(--color-accent);
            color: #fff !important;
            padding: 0.5rem 1.2rem !important;
            border-radius: 9999px !important;
            font-weight: 600 !important;
            font-size: 0.85rem !important;
            transition: all var(--transition-base) !important;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-cta-btn:hover {
            background: #0d5f58 !important;
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(15, 118, 110, 0.35);
            transform: translateY(-1px);
        }

        /* 汉堡菜单 */
        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            padding: 0.5rem;
            cursor: pointer;
            flex-shrink: 0;
            z-index: 1001;
        }
        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--color-primary);
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .hamburger-btn.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger-btn.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.7);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .mobile-menu-overlay.open {
            display: block;
            opacity: 1;
        }
        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 280px;
            max-width: 85vw;
            height: 100vh;
            background: #fff;
            z-index: 1000;
            padding: 5rem 1.5rem 2rem;
            flex-direction: column;
            gap: 0.5rem;
            transform: translateX(100%);
            transition: transform var(--transition-base);
            box-shadow: -4px 0 24px rgba(0, 0, 0, 0.15);
            border-radius: 1.5rem 0 0 1.5rem;
        }
        .mobile-menu-panel.open {
            display: flex;
            transform: translateX(0);
        }
        .mobile-menu-panel a {
            display: block;
            padding: 0.75rem 1rem;
            border-radius: 0.75rem;
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text-primary);
            transition: all var(--transition-base);
        }
        .mobile-menu-panel a:hover,
        .mobile-menu-panel a.active {
            background: rgba(30, 58, 95, 0.06);
            color: var(--color-primary);
            font-weight: 700;
        }
        .mobile-menu-panel .nav-cta-btn {
            text-align: center;
            margin-top: 0.5rem;
            border-radius: 0.75rem !important;
            padding: 0.75rem 1.2rem !important;
        }

        @media (max-width: 1023px) {
            .nav-links {
                display: none;
            }
            .nav-capsule .nav-cta-btn.desktop-only {
                display: none;
            }
            .hamburger-btn {
                display: block;
            }
            .nav-capsule {
                padding: 0.55rem 1.2rem;
            }
        }
        @media (min-width: 1024px) {
            .hamburger-btn {
                display: none;
            }
            .mobile-menu-overlay,
            .mobile-menu-panel {
                display: none !important;
            }
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-attachment: fixed;
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30, 58, 95, 0.88) 0%, rgba(30, 58, 95, 0.55) 50%, rgba(15, 118, 110, 0.45) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
            max-width: 800px;
            padding: 2rem;
        }
        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            justify-content: center;
            margin-bottom: 1.5rem;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            background: rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 0.4rem 0.9rem;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 500;
            color: #fff;
            white-space: nowrap;
        }
        .hero-badge-icon {
            width: 18px;
            height: 18px;
            background: var(--color-accent-light);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .hero-title {
            font-size: 2.5rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.2;
            margin-bottom: 1rem;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }
        @media (min-width: 768px) {
            .hero-title {
                font-size: 3.2rem;
            }
        }
        @media (min-width: 1024px) {
            .hero-title {
                font-size: 3.8rem;
            }
        }
        .hero-subtitle {
            font-size: 1.05rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }
        .btn-primary {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 0.85rem 2rem;
            border-radius: 9999px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-base);
            border: none;
            box-shadow: 0 4px 16px rgba(15, 118, 110, 0.4);
            cursor: pointer;
        }
        .btn-primary:hover {
            background: #0d5f58;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(15, 118, 110, 0.5);
            color: #fff;
        }
        .btn-primary:focus-visible {
            outline: 3px solid #fff;
            outline-offset: 3px;
        }
        .btn-outline {
            display: inline-block;
            background: transparent;
            color: #fff;
            padding: 0.85rem 2rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.7);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline:focus-visible {
            outline: 3px solid #fff;
            outline-offset: 3px;
        }

        /* 板块通用 */
        .section-padding {
            padding: 4rem 0;
        }
        @media (min-width: 768px) {
            .section-padding {
                padding: 5rem 0;
            }
        }
        @media (min-width: 1024px) {
            .section-padding {
                padding: 6rem 0;
            }
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            background: rgba(15, 118, 110, 0.08);
            padding: 0.35rem 0.9rem;
            border-radius: 9999px;
            margin-bottom: 0.75rem;
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            line-height: 1.3;
            margin-bottom: 0.75rem;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2.2rem;
            }
        }
        @media (min-width: 1024px) {
            .section-title {
                font-size: 2.5rem;
            }
        }
        .section-desc {
            font-size: 1rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            max-width: 650px;
        }

        /* 卡片 */
        .card {
            background: var(--color-card-bg);
            border-radius: var(--radius-2xl);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            border: 1px solid var(--color-border);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .card-img-top {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
            margin: -1.5rem -1.5rem 1rem -1.5rem;
            width: calc(100% + 3rem);
        }

        /* 新闻列表 */
        .news-list-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem 0;
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-base);
        }
        .news-list-item:last-child {
            border-bottom: none;
        }
        .news-list-item:hover {
            background: rgba(248, 250, 252, 0.6);
            border-radius: 0.75rem;
            padding-left: 0.75rem;
            padding-right: 0.75rem;
        }
        .news-date-badge {
            flex-shrink: 0;
            background: var(--color-accent);
            color: #fff;
            padding: 0.35rem 0.7rem;
            border-radius: 0.5rem;
            font-size: 0.75rem;
            font-weight: 600;
            white-space: nowrap;
            align-self: flex-start;
            margin-top: 0.2rem;
        }
        .news-content {
            flex: 1;
        }
        .news-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text-primary);
            margin-bottom: 0.3rem;
            line-height: 1.4;
        }
        .news-summary {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin-bottom: 0.5rem;
        }
        .news-readmore {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-primary-light);
            transition: all var(--transition-base);
        }
        .news-readmore:hover {
            color: var(--color-accent);
            text-decoration: underline;
        }

        /* FAQ */
        details.faq-item {
            background: #fff;
            border-radius: var(--radius-xl);
            margin-bottom: 0.75rem;
            box-shadow: 0 1px 3px rgba(30, 58, 95, 0.05);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        details.faq-item[open] {
            box-shadow: var(--shadow-card);
            border-color: transparent;
        }
        details.faq-item summary {
            padding: 1.1rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            color: var(--color-text-primary);
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background var(--transition-base);
        }
        details.faq-item summary::-webkit-details-marker {
            display: none;
        }
        details.faq-item summary:hover {
            background: rgba(248, 250, 252, 0.7);
        }
        details.faq-item summary::after {
            content: '+';
            font-size: 1.4rem;
            font-weight: 300;
            color: var(--color-text-muted);
            transition: transform var(--transition-base);
        }
        details.faq-item[open] summary::after {
            content: '−';
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        details.faq-item .faq-answer {
            padding: 0 1.5rem 1.2rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* 时间线 */
        .timeline-node {
            position: relative;
            padding-left: 2.5rem;
            padding-bottom: 2rem;
            border-left: 2px dashed var(--color-border);
        }
        .timeline-node:last-child {
            border-left-color: transparent;
            padding-bottom: 0;
        }
        .timeline-dot {
            position: absolute;
            left: -9px;
            top: 0;
            width: 16px;
            height: 16px;
            background: var(--color-accent);
            border-radius: 50%;
            border: 3px solid #fff;
            box-shadow: 0 0 0 3px var(--color-accent);
        }
        .timeline-time {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--color-accent);
            margin-bottom: 0.25rem;
        }
        .timeline-title {
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 0.3rem;
        }

        /* 表单 */
        .form-input {
            width: 100%;
            border: 1.5px solid var(--color-border);
            border-radius: 0.75rem;
            padding: 0.8rem 1rem;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            background: #fff;
            color: var(--color-text-primary);
        }
        .form-input:focus {
            outline: none;
            border-color: var(--color-primary-light);
            box-shadow: 0 0 0 3px rgba(45, 95, 158, 0.15);
            ring: 2px;
        }
        .form-input::placeholder {
            color: var(--color-text-muted);
        }

        /* 页脚 */
        .site-footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 3rem 0 2rem;
        }
        .site-footer a {
            color: #94A3B8;
            transition: color var(--transition-base);
        }
        .site-footer a:hover {
            color: #fff;
        }
        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin: 1.5rem 0;
        }

        /* 暗色背景区块 */
        .dark-section {
            background: #0F172A;
            color: #fff;
        }
        .dark-section .section-title {
            color: #fff;
        }
        .dark-section .section-desc {
            color: #CBD5E1;
        }

        /* 滚动条 */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: transparent;
        }
        ::-webkit-scrollbar-thumb {
            background: #CBD5E1;
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #94A3B8;
        }

        @media (max-width: 767px) {
            .hero-section {
                min-height: 75vh;
                background-attachment: scroll;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .nav-capsule {
                width: calc(100% - 1rem);
                top: 0.4rem;
                padding: 0.5rem 1rem;
            }
            .news-list-item {
                flex-direction: column;
                gap: 0.5rem;
            }
            .card {
                padding: 1.2rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1E3A5F;
            --color-primary-light: #2D5F9E;
            --color-accent: #0F766E;
            --color-accent-light: #14B8A6;
            --color-bg: #F8FAFC;
            --color-card-bg: #FFFFFF;
            --color-text-primary: #1E293B;
            --color-text-secondary: #475569;
            --color-text-muted: #94A3B8;
            --color-border: #E2E8F0;
            --radius-xl: 1rem;
            --radius-2xl: 1.25rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 4px 20px rgba(30, 58, 95, 0.08);
            --shadow-card-hover: 0 12px 32px rgba(30, 58, 95, 0.15);
            --shadow-nav: 0 2px 24px rgba(30, 58, 95, 0.12);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* 悬浮胶囊导航 */
        .nav-capsule {
            position: fixed;
            top: 0.75rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - 2rem);
            max-width: 1100px;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 9999px;
            padding: 0.6rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-nav);
            transition: all var(--transition-base);
            border: 1px solid rgba(226, 232, 240, 0.6);
        }

        .nav-capsule.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 28px rgba(30, 58, 95, 0.18);
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--color-accent);
            border-radius: 8px;
            margin-right: 0.4rem;
            vertical-align: middle;
            position: relative;
            top: -1px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .nav-links li a {
            display: block;
            padding: 0.45rem 0.85rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-base);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--color-primary);
            background: rgba(30, 58, 95, 0.06);
        }

        .nav-links li a.active {
            color: var(--color-primary);
            font-weight: 700;
            background: rgba(30, 58, 95, 0.08);
        }

        .nav-links li a:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 2px;
        }

        .nav-cta-btn {
            background: var(--color-accent);
            color: #fff !important;
            padding: 0.5rem 1.2rem !important;
            border-radius: 9999px !important;
            font-weight: 600 !important;
            font-size: 0.85rem !important;
            transition: all var(--transition-base) !important;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: #0d5f58 !important;
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(15, 118, 110, 0.35);
            transform: translateY(-1px);
        }

        .nav-cta-btn:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            ring: 2px rgba(15, 118, 110, 0.4);
        }

        /* 汉堡菜单 */
        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            padding: 0.5rem;
            cursor: pointer;
            flex-shrink: 0;
            z-index: 1001;
        }

        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--color-primary);
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .hamburger-btn.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.7);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition-base);
            pointer-events: none;
        }

        .mobile-menu-overlay.open {
            display: block;
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 280px;
            max-width: 85vw;
            height: 100vh;
            background: #fff;
            z-index: 1000;
            padding: 5rem 1.5rem 2rem;
            box-shadow: -4px 0 30px rgba(0, 0, 0, 0.2);
            transform: translateX(100%);
            transition: transform var(--transition-base);
            overflow-y: auto;
            border-radius: 1.5rem 0 0 1.5rem;
        }

        .mobile-menu-panel.open {
            display: block;
            transform: translateX(0);
        }

        .mobile-menu-panel .nav-links-mobile {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .mobile-menu-panel .nav-links-mobile li a {
            display: block;
            padding: 0.8rem 1.2rem;
            border-radius: 0.75rem;
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text-primary);
            transition: all var(--transition-base);
        }

        .mobile-menu-panel .nav-links-mobile li a:hover,
        .mobile-menu-panel .nav-links-mobile li a.active {
            background: rgba(30, 58, 95, 0.06);
            color: var(--color-primary);
            font-weight: 700;
        }

        @media (max-width: 1023px) {
            .nav-links {
                display: none;
            }
            .nav-cta-btn.desktop-only {
                display: none;
            }
            .hamburger-btn {
                display: block;
            }
            .nav-capsule {
                padding: 0.5rem 1rem;
                border-radius: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .hamburger-btn {
                display: none;
            }
            .mobile-menu-overlay,
            .mobile-menu-panel {
                display: none !important;
            }
        }

        /* 分类Banner */
        .category-banner {
            position: relative;
            min-height: 50vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            margin-top: 5rem;
            border-radius: 0 0 2rem 2rem;
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30, 58, 95, 0.85) 0%, rgba(15, 118, 110, 0.6) 60%, rgba(30, 58, 95, 0.4) 100%);
            z-index: 1;
        }

        .category-banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
            padding: 2rem;
            max-width: 800px;
        }

        .category-banner-content h1 {
            font-size: 2.5rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            margin-bottom: 1rem;
            line-height: 1.2;
        }

        .category-banner-content p {
            font-size: 1.1rem;
            line-height: 1.7;
            opacity: 0.92;
            margin-bottom: 1.5rem;
        }

        @media (min-width: 768px) {
            .category-banner {
                min-height: 55vh;
                margin-top: 5.5rem;
            }
            .category-banner-content h1 {
                font-size: 3.2rem;
            }
            .category-banner-content p {
                font-size: 1.15rem;
            }
        }

        @media (min-width: 1024px) {
            .category-banner {
                min-height: 60vh;
                border-radius: 0 0 3rem 3rem;
            }
            .category-banner-content h1 {
                font-size: 3.8rem;
            }
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--color-text-muted);
            padding: 1.5rem 0 0.5rem;
        }

        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: color var(--transition-base);
        }

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

        .breadcrumb .separator {
            color: var(--color-text-muted);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* 特色徽章区 */
        .feature-badges {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
            padding: 2rem 0;
        }

        @media (min-width: 640px) {
            .feature-badges {
                grid-template-columns: repeat(4, 1fr);
                gap: 1.25rem;
            }
        }

        .feature-badge-item {
            background: var(--color-card-bg);
            border-radius: var(--radius-xl);
            padding: 1.5rem 1rem;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            border: 1px solid var(--color-border);
        }

        .feature-badge-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--color-primary-light);
        }

        .feature-badge-icon {
            width: 48px;
            height: 48px;
            background: rgba(15, 118, 110, 0.1);
            border-radius: 50%;
            margin: 0 auto 0.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
        }

        .feature-badge-item h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 0.3rem;
        }

        .feature-badge-item p {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            line-height: 1.4;
        }

        /* 文章卡片网格 */
        .articles-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
            padding: 1.5rem 0;
        }

        @media (min-width: 640px) {
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.75rem;
            }
        }

        @media (min-width: 1024px) {
            .articles-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 2rem;
            }
        }

        .article-card {
            background: var(--color-card-bg);
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            border: 1px solid var(--color-border);
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--color-primary-light);
        }

        .article-card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }

        .article-card-body {
            padding: 1.25rem 1.25rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-card-date {
            display: inline-block;
            font-size: 0.78rem;
            color: var(--color-accent);
            font-weight: 600;
            background: rgba(15, 118, 110, 0.08);
            padding: 0.2rem 0.6rem;
            border-radius: 9999px;
            margin-bottom: 0.6rem;
            width: fit-content;
        }

        .article-card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 0.5rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-summary {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 1rem;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-btn {
            display: inline-block;
            padding: 0.5rem 1.1rem;
            border: 2px solid var(--color-primary-light);
            color: var(--color-primary-light);
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.85rem;
            text-align: center;
            transition: all var(--transition-base);
            align-self: flex-start;
            background: transparent;
            cursor: pointer;
        }

        .article-card-btn:hover {
            background: var(--color-primary-light);
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(45, 95, 158, 0.3);
            transform: translateY(-1px);
        }

        .article-card-btn:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
        }

        /* 分页 */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.35rem;
            flex-wrap: wrap;
            padding: 2rem 0 1rem;
        }

        .pagination-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 0.8rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            background: var(--color-card-bg);
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            cursor: pointer;
            user-select: none;
        }

        .pagination-btn:hover {
            border-color: var(--color-primary-light);
            color: var(--color-primary);
            background: rgba(30, 58, 95, 0.04);
        }

        .pagination-btn.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            font-weight: 700;
            cursor: default;
        }

        .pagination-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
            cursor: default;
        }

        /* FAQ */
        .faq-section {
            padding: 3rem 0;
        }

        .faq-details {
            background: var(--color-card-bg);
            border-radius: var(--radius-xl);
            margin-bottom: 0.75rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-base);
        }

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

        .faq-details summary {
            padding: 1.1rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text-primary);
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            user-select: none;
            transition: background var(--transition-base);
        }

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

        .faq-details summary::after {
            content: '+';
            font-size: 1.4rem;
            font-weight: 300;
            color: var(--color-accent);
            transition: transform var(--transition-base);
            flex-shrink: 0;
            line-height: 1;
        }

        .faq-details[open] summary::after {
            content: '−';
            transform: rotate(180deg);
        }

        .faq-details[open] summary {
            background: rgba(30, 58, 95, 0.03);
            border-bottom: 1px solid var(--color-border);
        }

        .faq-details .faq-answer {
            padding: 1rem 1.5rem 1.5rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* CTA区域 */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #152d4a 100%);
            border-radius: var(--radius-3xl);
            padding: 2.5rem 1.5rem;
            text-align: center;
            color: #fff;
            margin: 2rem 0;
        }

        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }

        .cta-section p {
            font-size: 1rem;
            opacity: 0.9;
            margin-bottom: 1.5rem;
            line-height: 1.6;
        }

        .cta-btn-primary {
            display: inline-block;
            background: var(--color-accent);
            color: #fff !important;
            padding: 0.75rem 2rem;
            border-radius: 9999px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-base);
            box-shadow: 0 6px 20px rgba(15, 118, 110, 0.4);
        }

        .cta-btn-primary:hover {
            background: #0d5f58;
            box-shadow: 0 8px 28px rgba(15, 118, 110, 0.55);
            transform: translateY(-2px);
            color: #fff !important;
        }

        @media (min-width: 768px) {
            .cta-section {
                padding: 3.5rem 2rem;
                border-radius: 2.5rem;
            }
            .cta-section h2 {
                font-size: 2rem;
            }
        }

        /* 页脚 */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 3rem 1.5rem 2rem;
            margin-top: 2rem;
            border-radius: 2rem 2rem 0 0;
        }

        .site-footer a {
            color: #94a3b8;
            transition: color var(--transition-base);
        }

        .site-footer a:hover {
            color: #fff;
        }

        .footer-divider {
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            margin: 1.5rem 0;
        }

        @media (min-width: 768px) {
            .site-footer {
                padding: 4rem 2rem 2.5rem;
                border-radius: 3rem 3rem 0 0;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #1E3A5F;
            --color-primary-light: #2D5F9E;
            --color-accent: #0F766E;
            --color-accent-light: #14B8A6;
            --color-bg: #F8FAFC;
            --color-card-bg: #FFFFFF;
            --color-text-primary: #1E293B;
            --color-text-secondary: #475569;
            --color-text-muted: #94A3B8;
            --color-border: #E2E8F0;
            --radius-xl: 1rem;
            --radius-2xl: 1.25rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 4px 20px rgba(30, 58, 95, 0.08);
            --shadow-card-hover: 0 12px 32px rgba(30, 58, 95, 0.15);
            --shadow-nav: 0 2px 24px rgba(30, 58, 95, 0.12);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* 悬浮胶囊导航 */
        .nav-capsule {
            position: fixed;
            top: 0.75rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - 2rem);
            max-width: 1100px;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 9999px;
            padding: 0.6rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-nav);
            transition: all var(--transition-base);
            border: 1px solid rgba(226, 232, 240, 0.6);
        }

        .nav-capsule.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 28px rgba(30, 58, 95, 0.18);
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--color-accent);
            border-radius: 8px;
            margin-right: 0.4rem;
            vertical-align: middle;
            position: relative;
            top: -1px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .nav-links li a {
            display: block;
            padding: 0.45rem 0.85rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-base);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--color-primary);
            background: rgba(30, 58, 95, 0.06);
        }

        .nav-links li a.active {
            color: var(--color-primary);
            font-weight: 700;
            background: rgba(30, 58, 95, 0.08);
        }

        .nav-links li a:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 2px;
        }

        .nav-cta-btn {
            background: var(--color-accent);
            color: #fff !important;
            padding: 0.5rem 1.2rem !important;
            border-radius: 9999px !important;
            font-weight: 600 !important;
            font-size: 0.85rem !important;
            transition: all var(--transition-base) !important;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: #0d5f58 !important;
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(15, 118, 110, 0.35);
            transform: translateY(-1px);
        }

        /* 汉堡菜单 */
        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            padding: 0.5rem;
            cursor: pointer;
            flex-shrink: 0;
            z-index: 1001;
        }

        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--color-primary);
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .hamburger-btn.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.7);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .mobile-menu-overlay.show {
            display: block;
            opacity: 1;
        }

        .mobile-menu-panel {
            position: fixed;
            top: 0;
            right: -100%;
            width: 80%;
            max-width: 360px;
            height: 100vh;
            background: #fff;
            z-index: 1000;
            padding: 5rem 2rem 2rem;
            transition: right var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 1rem;
            box-shadow: -4px 0 30px rgba(0, 0, 0, 0.15);
            border-radius: 1.5rem 0 0 1.5rem;
        }

        .mobile-menu-panel.show {
            right: 0;
        }

        .mobile-menu-panel a {
            display: block;
            padding: 0.75rem 1rem;
            font-size: 1.05rem;
            font-weight: 500;
            border-radius: 0.75rem;
            color: var(--color-text-primary);
            transition: all var(--transition-base);
        }

        .mobile-menu-panel a:hover,
        .mobile-menu-panel a.active {
            background: rgba(30, 58, 95, 0.06);
            color: var(--color-primary);
            font-weight: 700;
        }

        @media (max-width: 1023px) {
            .nav-links {
                display: none;
            }
            .nav-cta-btn.desktop-only {
                display: none;
            }
            .hamburger-btn {
                display: block;
            }
            .nav-capsule {
                padding: 0.5rem 1rem;
                border-radius: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .hamburger-btn {
                display: none;
            }
            .mobile-menu-overlay,
            .mobile-menu-panel {
                display: none !important;
            }
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
            font-size: 0.875rem;
            color: var(--color-text-muted);
            padding: 0.5rem 0;
        }

        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: color var(--transition-base);
        }

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

        .breadcrumb .separator {
            color: var(--color-text-muted);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* 卡片 */
        .card-article {
            background: var(--color-card-bg);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

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

        .card-article .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

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

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

        .card-article .card-body {
            padding: 1.25rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-article .card-date {
            font-size: 0.8rem;
            color: var(--color-accent);
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .card-article .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 0.5rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-article .card-summary {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-article .card-link {
            display: inline-block;
            margin-top: 0.75rem;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-primary-light);
            transition: all var(--transition-base);
            padding: 0.35rem 0;
            border-bottom: 2px solid transparent;
            align-self: flex-start;
        }

        .card-article .card-link:hover {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary-light);
        }

        /* 标签 */
        .tag-badge {
            display: inline-block;
            padding: 0.25rem 0.7rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(15, 118, 110, 0.1);
            color: var(--color-accent);
            white-space: nowrap;
        }

        .tag-badge.hot {
            background: rgba(239, 68, 68, 0.1);
            color: #EF4444;
        }

        /* 分页 */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
            flex-wrap: wrap;
        }

        .pagination .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 0.6rem;
            border-radius: 0.75rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            background: #fff;
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .pagination .page-btn:hover {
            background: rgba(30, 58, 95, 0.05);
            border-color: var(--color-primary-light);
            color: var(--color-primary);
        }

        .pagination .page-btn.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            font-weight: 700;
        }

        .pagination .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
            cursor: not-allowed;
        }

        /* FAQ */
        .faq-details {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-details summary {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text-primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            user-select: none;
            transition: background var(--transition-base);
        }

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

        .faq-details summary::after {
            content: '+';
            font-size: 1.4rem;
            font-weight: 300;
            color: var(--color-accent);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

        .faq-details[open] summary::after {
            content: '−';
            transform: rotate(0deg);
        }

        .faq-details summary:hover {
            background: rgba(248, 250, 252, 0.8);
        }

        .faq-details .faq-answer {
            padding: 0 1.5rem 1.2rem;
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* 页脚 */
        .site-footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 3rem 1.5rem 1.5rem;
            margin-top: 3rem;
        }

        .site-footer a {
            color: #94A3B8;
            transition: color var(--transition-base);
        }

        .site-footer a:hover {
            color: #fff;
        }

        .footer-divider {
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            margin: 1.5rem 0;
        }

        /* CTA区块 */
        .cta-section {
            background: linear-gradient(135deg, #1E3A5F 0%, #2D5F9E 100%);
            border-radius: var(--radius-2xl);
            padding: 2.5rem 2rem;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 150px;
            height: 150px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }

        .btn-primary {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 0.7rem 1.8rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 14px rgba(15, 118, 110, 0.3);
            position: relative;
            z-index: 1;
        }

        .btn-primary:hover {
            background: #0d5f58;
            box-shadow: 0 6px 20px rgba(15, 118, 110, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-primary:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 3px;
        }

        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--color-primary-light);
            padding: 0.6rem 1.5rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.9rem;
            border: 2px solid var(--color-primary-light);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .btn-outline:hover {
            background: var(--color-primary-light);
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-outline:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
        }

        /* 响应式补充 */
        @media (max-width: 767px) {
            .nav-capsule {
                top: 0.4rem;
                width: calc(100% - 0.8rem);
                border-radius: 1.75rem;
                padding: 0.45rem 1rem;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .cta-section {
                padding: 1.8rem 1.2rem;
                border-radius: var(--radius-xl);
            }
            .card-article .card-title {
                font-size: 1rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
            }
            .pagination .page-btn {
                min-width: 34px;
                height: 34px;
                font-size: 0.8rem;
                border-radius: 0.6rem;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #1E3A5F;
            --color-primary-light: #2D5F9E;
            --color-accent: #0F766E;
            --color-accent-light: #14B8A6;
            --color-bg: #F8FAFC;
            --color-card-bg: #FFFFFF;
            --color-text-primary: #1E293B;
            --color-text-secondary: #475569;
            --color-text-muted: #94A3B8;
            --color-border: #E2E8F0;
            --radius-xl: 1rem;
            --radius-2xl: 1.25rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 4px 20px rgba(30, 58, 95, 0.08);
            --shadow-card-hover: 0 12px 32px rgba(30, 58, 95, 0.15);
            --shadow-nav: 0 2px 24px rgba(30, 58, 95, 0.12);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            padding-top: 5.5rem;
        }

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

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* 悬浮胶囊导航 */
        .nav-capsule {
            position: fixed;
            top: 0.75rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - 2rem);
            max-width: 1100px;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 9999px;
            padding: 0.6rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-nav);
            transition: all var(--transition-base);
            border: 1px solid rgba(226, 232, 240, 0.6);
        }

        .nav-capsule.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 28px rgba(30, 58, 95, 0.18);
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            display: flex;
            align-items: center;
        }

        .nav-logo-icon {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--color-accent);
            border-radius: 8px;
            margin-right: 0.4rem;
            flex-shrink: 0;
            position: relative;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 28 28'%3E%3Ccircle cx='14' cy='10' r='5' fill='white'/%3E%3Cpath d='M6 24c0-4.418 3.582-8 8-8s8 3.582 8 8' stroke='white' stroke-width='2.5' fill='none'/%3E%3C/svg%3E");
            background-size: contain;
            background-repeat: no-repeat;
            background-position: center;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .nav-links li a {
            display: block;
            padding: 0.45rem 0.85rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-base);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--color-primary);
            background: rgba(30, 58, 95, 0.06);
        }

        .nav-links li a.active {
            color: var(--color-primary);
            font-weight: 700;
            background: rgba(30, 58, 95, 0.08);
        }

        .nav-links li a:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 2px;
        }

        .nav-cta-btn {
            background: var(--color-accent);
            color: #fff !important;
            padding: 0.5rem 1.2rem !important;
            border-radius: 9999px !important;
            font-weight: 600 !important;
            font-size: 0.85rem !important;
            transition: all var(--transition-base) !important;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: #0d5f58 !important;
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(15, 118, 110, 0.35);
            transform: translateY(-1px);
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            padding: 0.5rem;
            cursor: pointer;
            flex-shrink: 0;
            z-index: 1001;
        }

        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--color-primary);
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .hamburger-btn.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.7);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .mobile-menu-overlay.active {
            display: block;
            opacity: 1;
        }

        .mobile-menu-panel {
            position: fixed;
            top: 0;
            right: -100%;
            width: 80%;
            max-width: 380px;
            height: 100vh;
            background: #fff;
            z-index: 1000;
            padding: 5rem 2rem 2rem;
            transition: right var(--transition-base);
            overflow-y: auto;
            box-shadow: -4px 0 24px rgba(0, 0, 0, 0.15);
            border-radius: 1.5rem 0 0 1.5rem;
        }

        .mobile-menu-panel.open {
            right: 0;
        }

        .mobile-menu-panel ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mobile-menu-panel ul li {
            margin-bottom: 0.5rem;
        }

        .mobile-menu-panel ul li a {
            display: block;
            padding: 0.85rem 1.2rem;
            border-radius: 0.75rem;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--color-text-primary);
            transition: all var(--transition-base);
        }

        .mobile-menu-panel ul li a:hover,
        .mobile-menu-panel ul li a.active {
            background: rgba(30, 58, 95, 0.06);
            color: var(--color-primary);
            font-weight: 700;
        }

        .mobile-menu-cta {
            display: block;
            margin-top: 1.5rem;
            background: var(--color-accent);
            color: #fff !important;
            text-align: center;
            padding: 0.85rem 1.5rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-base);
        }

        .mobile-menu-cta:hover {
            background: #0d5f58 !important;
            color: #fff !important;
        }

        /* 面包屑 */
        .breadcrumb-nav {
            padding: 1rem 0;
            font-size: 0.875rem;
            color: var(--color-text-muted);
        }

        .breadcrumb-nav a {
            color: var(--color-text-muted);
            transition: color var(--transition-base);
        }

        .breadcrumb-nav a:hover {
            color: var(--color-primary-light);
        }

        .breadcrumb-nav .separator {
            margin: 0 0.5rem;
            color: var(--color-border);
        }

        .breadcrumb-nav .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* 板块间距 */
        .section-spacing {
            padding-top: 3.5rem;
            padding-bottom: 3.5rem;
        }

        @media (min-width: 768px) {
            .section-spacing {
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }

        /* 卡片基础 */
        .card-base {
            background: var(--color-card-bg);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            overflow: hidden;
        }

        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        /* 按钮 */
        .btn-primary {
            display: inline-block;
            background: var(--color-primary);
            color: #fff !important;
            padding: 0.7rem 1.8rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: #152b45;
            box-shadow: 0 6px 20px rgba(30, 58, 95, 0.35);
            transform: translateY(-1px);
            color: #fff !important;
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
        }

        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--color-primary-light) !important;
            padding: 0.65rem 1.6rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.9rem;
            border: 2px solid var(--color-primary-light);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .btn-outline:hover {
            background: var(--color-primary-light);
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(45, 95, 158, 0.3);
            transform: translateY(-1px);
        }

        .btn-accent {
            display: inline-block;
            background: var(--color-accent);
            color: #fff !important;
            padding: 0.7rem 1.8rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .btn-accent:hover {
            background: #0d5f58;
            box-shadow: 0 6px 20px rgba(15, 118, 110, 0.35);
            transform: translateY(-1px);
            color: #fff !important;
        }

        /* 标签 */
        .tag-accent {
            display: inline-block;
            background: rgba(15, 118, 110, 0.1);
            color: var(--color-accent);
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .tag-primary {
            display: inline-block;
            background: rgba(30, 58, 95, 0.08);
            color: var(--color-primary);
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* Hero区域 */
        .category-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30, 58, 95, 0.92) 0%, rgba(30, 58, 95, 0.65) 50%, rgba(15, 118, 110, 0.45) 100%);
            z-index: 1;
        }

        .category-hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        /* 数据面板 */
        .data-panel {
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-radius: var(--radius-xl);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 1.5rem;
        }

        .data-panel-item {
            text-align: center;
            padding: 0.75rem 0.5rem;
        }

        .data-panel-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
        }

        .data-panel-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 0.25rem;
        }

        /* 训练服务卡片 */
        .training-card {
            background: var(--color-card-bg);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            overflow: hidden;
            height: 100%;
        }

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

        .training-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .training-card-body {
            padding: 1.5rem;
        }

        .training-card-featured {
            grid-column: span 2;
        }

        @media (max-width: 767px) {
            .training-card-featured {
                grid-column: span 1;
            }
        }

        /* 流程步骤 */
        .step-item {
            display: flex;
            gap: 1.25rem;
            align-items: flex-start;
            padding: 1.5rem 0;
            position: relative;
        }

        .step-item:not(:last-child)::after {
            content: '';
            position: absolute;
            left: 1.75rem;
            top: 4.5rem;
            bottom: -0.5rem;
            width: 2px;
            background: linear-gradient(to bottom, var(--color-accent), var(--color-border));
            border-radius: 1px;
        }

        .step-number {
            flex-shrink: 0;
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 50%;
            background: var(--color-accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.3rem;
            position: relative;
            z-index: 1;
            box-shadow: 0 4px 14px rgba(15, 118, 110, 0.3);
        }

        .step-content {
            flex: 1;
            padding-top: 0.4rem;
        }

        .step-content h4 {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-text-primary);
            margin-bottom: 0.35rem;
        }

        .step-content p {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* 文章卡片 */
        .article-card {
            background: var(--color-card-bg);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .article-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .article-card-body {
            padding: 1.25rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-card-date {
            font-size: 0.8rem;
            color: var(--color-accent);
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .article-card-title {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-text-primary);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .article-card-excerpt {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 1rem;
        }

        .article-card-link {
            font-weight: 600;
            font-size: 0.875rem;
            color: var(--color-primary-light) !important;
            transition: all var(--transition-base);
            align-self: flex-start;
        }

        .article-card-link:hover {
            color: var(--color-accent) !important;
        }

        /* FAQ */
        .faq-details {
            background: var(--color-card-bg);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-details summary {
            padding: 1.15rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text-primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: all var(--transition-base);
            background: #f9fafb;
            border-radius: var(--radius-xl);
        }

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

        .faq-details summary::after {
            content: '+';
            font-size: 1.4rem;
            font-weight: 300;
            color: var(--color-accent);
            transition: transform var(--transition-base);
            flex-shrink: 0;
            margin-left: 1rem;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(15, 118, 110, 0.08);
        }

        .faq-details[open] summary::after {
            content: '−';
            background: rgba(15, 118, 110, 0.15);
            transform: rotate(180deg);
        }

        .faq-details[open] summary {
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
            background: rgba(15, 118, 110, 0.04);
        }

        .faq-details .faq-answer {
            padding: 0 1.5rem 1.25rem;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* 分页 */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.35rem;
            flex-wrap: wrap;
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            font-weight: 500;
            font-size: 0.9rem;
            transition: all var(--transition-base);
            border: 1px solid var(--color-border);
            color: var(--color-text-secondary);
            background: #fff;
        }

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

        .pagination .active-page {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            font-weight: 700;
        }

        .pagination .disabled-page {
            opacity: 0.4;
            pointer-events: none;
            cursor: not-allowed;
        }

        .pagination .page-nav {
            width: auto;
            padding: 0 1.2rem;
            border-radius: 9999px;
            font-size: 0.85rem;
        }

        /* CTA区块 */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #152b45 100%);
            border-radius: var(--radius-2xl);
            padding: 3rem 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
        }

        /* 页脚 */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }

        .site-footer a {
            color: #cbd5e1;
            transition: color var(--transition-base);
        }

        .site-footer a:hover {
            color: #fff;
        }

        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin: 1.5rem 0;
        }

        /* 响应式 */
        @media (max-width: 1023px) {
            .nav-links {
                display: none;
            }

            .nav-cta-btn.desktop-only {
                display: none;
            }

            .hamburger-btn {
                display: block;
            }

            .category-hero {
                min-height: 340px;
                border-radius: var(--radius-xl);
            }

            .data-panel {
                margin-top: 1.5rem;
            }
        }

        @media (max-width: 767px) {
            body {
                padding-top: 4.5rem;
            }

            .nav-capsule {
                top: 0.4rem;
                width: calc(100% - 1rem);
                padding: 0.5rem 1rem;
                border-radius: 2rem;
            }

            .nav-logo {
                font-size: 1.1rem;
            }

            .nav-logo-icon {
                width: 24px;
                height: 24px;
                border-radius: 6px;
            }

            .category-hero {
                min-height: 300px;
                border-radius: 1rem;
            }

            .section-spacing {
                padding-top: 2.5rem;
                padding-bottom: 2.5rem;
            }

            .data-panel-number {
                font-size: 1.5rem;
            }

            .step-item:not(:last-child)::after {
                left: 1.4rem;
                top: 3.8rem;
            }

            .step-number {
                width: 2.8rem;
                height: 2.8rem;
                font-size: 1.1rem;
            }

            .cta-section {
                padding: 2rem 1.25rem;
                border-radius: var(--radius-xl);
            }

            .pagination a,
            .pagination span {
                width: 34px;
                height: 34px;
                font-size: 0.8rem;
            }

            .pagination .page-nav {
                padding: 0 0.8rem;
            }
        }

        @media (max-width: 520px) {
            .category-hero {
                min-height: 260px;
            }

            .category-hero h1 {
                font-size: 1.6rem;
            }

            .article-card-img {
                height: 150px;
            }

            .training-card-img {
                height: 160px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #1E3A5F;
            --color-primary-light: #2D5F9E;
            --color-accent: #0F766E;
            --color-accent-light: #14B8A6;
            --color-bg: #F8FAFC;
            --color-card-bg: #FFFFFF;
            --color-text-primary: #1E293B;
            --color-text-secondary: #475569;
            --color-text-muted: #94A3B8;
            --color-border: #E2E8F0;
            --radius-xl: 1rem;
            --radius-2xl: 1.25rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 4px 20px rgba(30, 58, 95, 0.08);
            --shadow-card-hover: 0 12px 32px rgba(30, 58, 95, 0.15);
            --shadow-nav: 0 2px 24px rgba(30, 58, 95, 0.12);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* 悬浮胶囊导航 */
        .nav-capsule {
            position: fixed;
            top: 0.75rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - 2rem);
            max-width: 1100px;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 9999px;
            padding: 0.6rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-nav);
            transition: all var(--transition-base);
            border: 1px solid rgba(226, 232, 240, 0.6);
        }

        .nav-capsule.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 28px rgba(30, 58, 95, 0.18);
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--color-accent);
            border-radius: 8px;
            margin-right: 0.4rem;
            vertical-align: middle;
            position: relative;
            top: -1px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .nav-links li a {
            display: block;
            padding: 0.45rem 0.85rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-base);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--color-primary);
            background: rgba(30, 58, 95, 0.06);
        }

        .nav-links li a.active {
            color: var(--color-primary);
            font-weight: 700;
            background: rgba(30, 58, 95, 0.08);
        }

        .nav-links li a:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 2px;
        }

        .nav-cta-btn {
            background: var(--color-accent);
            color: #fff !important;
            padding: 0.5rem 1.2rem !important;
            border-radius: 9999px !important;
            font-weight: 600 !important;
            font-size: 0.85rem !important;
            transition: all var(--transition-base) !important;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: #0d5f58 !important;
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(15, 118, 110, 0.35);
            transform: translateY(-1px);
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            padding: 0.5rem;
            cursor: pointer;
            flex-shrink: 0;
            z-index: 1001;
        }

        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--color-primary);
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .hamburger-btn.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.7);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .mobile-menu-overlay.show {
            display: block;
            opacity: 1;
        }

        .mobile-menu-panel {
            position: fixed;
            top: 0;
            right: -100%;
            width: 280px;
            height: 100vh;
            background: #fff;
            z-index: 1000;
            padding: 5rem 1.5rem 2rem;
            transition: right var(--transition-base);
            overflow-y: auto;
            box-shadow: -4px 0 24px rgba(0, 0, 0, 0.15);
        }

        .mobile-menu-panel.show {
            right: 0;
        }

        .mobile-menu-panel a {
            display: block;
            padding: 0.75rem 1rem;
            border-radius: 0.75rem;
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text-primary);
            margin-bottom: 0.25rem;
            transition: all var(--transition-base);
        }

        .mobile-menu-panel a:hover,
        .mobile-menu-panel a.active {
            background: rgba(30, 58, 95, 0.06);
            color: var(--color-primary);
            font-weight: 700;
        }

        .mobile-menu-cta {
            display: block;
            background: var(--color-accent);
            color: #fff !important;
            text-align: center;
            padding: 0.75rem 1rem !important;
            border-radius: 9999px !important;
            font-weight: 600 !important;
            margin-top: 1rem;
        }

        /* Hero - 资源下载站风格 */
        .hero-data {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            overflow: hidden;
        }

        .hero-data::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30, 58, 95, 0.88) 0%, rgba(15, 118, 110, 0.7) 50%, rgba(30, 58, 95, 0.82) 100%);
            z-index: 1;
        }

        .hero-data-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 2rem;
            max-width: 800px;
            width: 100%;
        }

        .hero-data h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.03em;
            margin-bottom: 1rem;
            line-height: 1.2;
        }

        @media (min-width: 768px) {
            .hero-data h1 {
                font-size: 3.25rem;
            }
        }

        @media (min-width: 1024px) {
            .hero-data h1 {
                font-size: 3.75rem;
            }
        }

        .hero-data .hero-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 2rem;
            line-height: 1.6;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-search-wrap {
            position: relative;
            max-width: 560px;
            margin: 0 auto 1.5rem;
        }

        .hero-search-input {
            width: 100%;
            padding: 1rem 1.25rem;
            padding-right: 3.5rem;
            border-radius: 9999px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            color: #fff;
            font-size: 1rem;
            outline: none;
            transition: all var(--transition-base);
        }

        .hero-search-input::placeholder {
            color: rgba(255, 255, 255, 0.65);
        }

        .hero-search-input:focus {
            border-color: rgba(255, 255, 255, 0.7);
            background: rgba(255, 255, 255, 0.22);
            box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.1);
        }

        .hero-search-btn {
            position: absolute;
            right: 0.5rem;
            top: 50%;
            transform: translateY(-50%);
            background: var(--color-accent);
            color: #fff;
            border: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .hero-search-btn:hover {
            background: #0d5f58;
            box-shadow: 0 4px 16px rgba(15, 118, 110, 0.45);
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            justify-content: center;
            margin-top: 0.5rem;
        }

        .hero-tag {
            display: inline-block;
            padding: 0.45rem 1rem;
            border-radius: 9999px;
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: all var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
        }

        .hero-tag:hover {
            background: rgba(255, 255, 255, 0.3);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }

        /* 板块通用 */
        .section-py {
            padding-top: 3.5rem;
            padding-bottom: 3.5rem;
        }

        @media (min-width: 768px) {
            .section-py {
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 2.25rem;
            }
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 650px;
            line-height: 1.6;
        }

        /* 卡片 */
        .card-data {
            background: var(--color-card-bg);
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            border: 1px solid var(--color-border);
            height: 100%;
        }

        .card-data:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--color-primary-light);
        }

        .card-data-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: 0.75rem;
            margin-bottom: 1rem;
        }

        .card-data h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 0.5rem;
        }

        .card-data p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* 统计数字 */
        .stat-block {
            text-align: center;
            padding: 1.5rem;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--color-accent);
            letter-spacing: -0.02em;
            line-height: 1;
        }

        @media (min-width: 768px) {
            .stat-number {
                font-size: 3rem;
            }
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            margin-top: 0.4rem;
            font-weight: 500;
        }

        /* 深色区块 */
        .dark-section {
            background: var(--color-primary);
            color: #fff;
            border-radius: 0;
        }

        .dark-section .section-title {
            color: #fff;
        }

        .dark-section .stat-number {
            color: var(--color-accent-light);
        }

        .dark-section .stat-label {
            color: rgba(255, 255, 255, 0.75);
        }

        /* 流程步骤 */
        .step-item {
            display: flex;
            gap: 1rem;
            align-items: flex-start;
            padding: 1.25rem 0;
            position: relative;
        }

        .step-number {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(15, 118, 110, 0.3);
        }

        .step-content h4 {
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 0.3rem;
            font-size: 1.05rem;
        }

        .step-content p {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
            margin: 0;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            margin-bottom: 0.75rem;
            overflow: hidden;
            background: #fff;
            transition: all var(--transition-base);
        }

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

        .faq-item summary {
            padding: 1rem 1.25rem;
            cursor: pointer;
            font-weight: 600;
            color: var(--color-primary);
            font-size: 1rem;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            user-select: none;
            background: #f8fafc;
            transition: background var(--transition-base);
        }

        .faq-item summary:hover {
            background: #f1f5f9;
        }

        .faq-item summary::after {
            content: '+';
            font-size: 1.4rem;
            font-weight: 300;
            color: var(--color-accent);
            transition: transform var(--transition-base);
            flex-shrink: 0;
            margin-left: 1rem;
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }

        .faq-item .faq-answer {
            padding: 1rem 1.25rem 1.25rem;
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            border-top: 1px solid var(--color-border);
        }

        /* CTA区块 */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #0d2b45 100%);
            color: #fff;
            text-align: center;
            padding: 3.5rem 1.5rem;
            border-radius: 0;
        }

        @media (min-width: 768px) {
            .cta-section {
                padding: 5rem 2rem;
            }
        }

        .cta-section h2 {
            font-size: 1.75rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }

        @media (min-width: 768px) {
            .cta-section h2 {
                font-size: 2.25rem;
            }
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1rem;
            max-width: 550px;
            margin: 0 auto 1.5rem;
            line-height: 1.6;
        }

        .btn-primary {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 0.75rem 1.75rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: #0d5f58;
            box-shadow: 0 6px 20px rgba(15, 118, 110, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--color-primary-light);
            padding: 0.65rem 1.5rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.9rem;
            border: 2px solid var(--color-primary-light);
            transition: all var(--transition-base);
            cursor: pointer;
        }

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

        .btn-outline-white {
            display: inline-block;
            background: transparent;
            color: #fff;
            padding: 0.65rem 1.5rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.9rem;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            padding: 1rem 0;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: color var(--transition-base);
        }

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

        .breadcrumb .separator {
            color: var(--color-text-muted);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* 页脚 */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 3rem 1.5rem 2rem;
            font-size: 0.9rem;
        }

        .site-footer a {
            color: #94a3b8;
            transition: color var(--transition-base);
        }

        .site-footer a:hover {
            color: #fff;
        }

        .footer-divider {
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            margin: 1.5rem 0;
        }

        /* 响应式 */
        @media (max-width: 767px) {
            .nav-links {
                display: none;
            }

            .nav-cta-btn.desktop-only {
                display: none;
            }

            .hamburger-btn {
                display: block;
            }

            .hero-data {
                min-height: 70vh;
            }

            .hero-data h1 {
                font-size: 1.85rem;
            }

            .hero-data .hero-subtitle {
                font-size: 0.95rem;
            }

            .hero-search-input {
                padding: 0.85rem 1rem;
                padding-right: 3rem;
                font-size: 0.9rem;
            }

            .hero-search-btn {
                width: 36px;
                height: 36px;
                right: 0.35rem;
            }

            .hero-tag {
                font-size: 0.78rem;
                padding: 0.35rem 0.8rem;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .card-data {
                padding: 1.25rem;
            }

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

        @media (min-width: 768px) {
            .desktop-only {
                display: inline-block;
            }

            .mobile-only {
                display: none;
            }
        }

        @media (max-width: 767px) {
            .desktop-only {
                display: none;
            }

            .mobile-only {
                display: block;
            }
        }

        /* 焦点可见 */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* 过渡动画 */
        .fade-in-up {
            animation: fadeInUp 0.5s ease-out forwards;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #1E3A5F;
            --color-primary-light: #2D5F9E;
            --color-accent: #0F766E;
            --color-accent-light: #14B8A6;
            --color-bg: #F8FAFC;
            --color-card-bg: #FFFFFF;
            --color-text-primary: #1E293B;
            --color-text-secondary: #475569;
            --color-text-muted: #94A3B8;
            --color-border: #E2E8F0;
            --radius-xl: 1rem;
            --radius-2xl: 1.25rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 4px 20px rgba(30, 58, 95, 0.08);
            --shadow-card-hover: 0 12px 32px rgba(30, 58, 95, 0.15);
            --shadow-nav: 0 2px 24px rgba(30, 58, 95, 0.12);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* 悬浮胶囊导航 */
        .nav-capsule {
            position: fixed;
            top: 0.75rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - 2rem);
            max-width: 1100px;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 9999px;
            padding: 0.6rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-nav);
            transition: all var(--transition-base);
            border: 1px solid rgba(226, 232, 240, 0.6);
        }

        .nav-capsule.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 28px rgba(30, 58, 95, 0.18);
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            display: flex;
            align-items: center;
        }

        .nav-logo-icon {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--color-accent);
            border-radius: 8px;
            margin-right: 0.4rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .nav-links li a {
            display: block;
            padding: 0.45rem 0.85rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-base);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--color-primary);
            background: rgba(30, 58, 95, 0.06);
        }

        .nav-links li a.active {
            color: var(--color-primary);
            font-weight: 700;
            background: rgba(30, 58, 95, 0.08);
        }

        .nav-links li a:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 2px;
        }

        .nav-cta-btn {
            background: var(--color-accent);
            color: #fff !important;
            padding: 0.5rem 1.2rem !important;
            border-radius: 9999px !important;
            font-weight: 600 !important;
            font-size: 0.85rem !important;
            transition: all var(--transition-base) !important;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: #0d5f58 !important;
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(15, 118, 110, 0.35);
            transform: translateY(-1px);
        }

        /* 汉堡菜单 */
        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            padding: 0.5rem;
            cursor: pointer;
            flex-shrink: 0;
            z-index: 1001;
        }

        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--color-primary);
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .hamburger-btn.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.7);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .mobile-menu-overlay.show {
            display: block;
            opacity: 1;
        }

        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 5rem;
            left: 1rem;
            right: 1rem;
            background: #fff;
            border-radius: var(--radius-2xl);
            z-index: 1000;
            padding: 1.5rem;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
            flex-direction: column;
            gap: 0.5rem;
        }

        .mobile-menu-panel.show {
            display: flex;
        }

        .mobile-menu-panel a {
            display: block;
            padding: 0.75rem 1rem;
            border-radius: var(--radius-xl);
            font-weight: 500;
            font-size: 1rem;
            color: var(--color-text-primary);
            transition: all var(--transition-base);
        }

        .mobile-menu-panel a:hover,
        .mobile-menu-panel a.active {
            background: rgba(30, 58, 95, 0.06);
            color: var(--color-primary);
            font-weight: 700;
        }

        .mobile-menu-panel .nav-cta-btn {
            text-align: center;
            margin-top: 0.5rem;
            display: block;
            border-radius: 9999px !important;
        }

        @media (max-width: 1023px) {
            .nav-links {
                display: none;
            }
            .nav-cta-btn.desktop-only {
                display: none;
            }
            .hamburger-btn {
                display: block;
            }
            .nav-capsule {
                padding: 0.5rem 1rem;
                border-radius: var(--radius-2xl);
            }
        }

        @media (min-width: 1024px) {
            .hamburger-btn {
                display: none;
            }
            .mobile-menu-overlay,
            .mobile-menu-panel {
                display: none !important;
            }
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.875rem;
            color: var(--color-text-muted);
            padding: 0.5rem 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-primary-light);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .separator {
            color: var(--color-border);
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--color-text-primary);
            font-weight: 600;
        }

        /* Hero 斜向错位 */
        .hero-image-wrapper {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-2xl);
            clip-path: polygon(6% 0%, 100% 0%, 100% 100%, 0% 94%);
            box-shadow: var(--shadow-card-hover);
        }
        .hero-image-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* 板块标题 */
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-text-primary);
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2rem;
            }
        }
        @media (min-width: 1024px) {
            .section-title {
                font-size: 2.25rem;
            }
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 640px;
            line-height: 1.7;
        }

        /* 卡片 */
        .card-community {
            background: var(--color-card-bg);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            overflow: hidden;
            border: 1px solid var(--color-border);
        }
        .card-community:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .card-community .card-image {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            display: block;
        }
        .card-community .card-body {
            padding: 1.25rem 1.5rem 1.5rem;
        }
        .card-community .card-tag {
            display: inline-block;
            background: rgba(15, 118, 110, 0.1);
            color: var(--color-accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            margin-bottom: 0.5rem;
        }
        .card-community .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }
        .card-community .card-desc {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: 9999px;
            transition: all var(--transition-base);
            border: none;
            font-size: 0.95rem;
            text-align: center;
        }
        .btn-primary:hover {
            background: #0d5f58;
            color: #fff;
            box-shadow: 0 6px 20px rgba(15, 118, 110, 0.35);
            transform: translateY(-2px);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--color-accent-light);
            outline-offset: 3px;
        }
        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--color-primary-light);
            font-weight: 600;
            padding: 0.65rem 1.5rem;
            border-radius: 9999px;
            border: 2px solid var(--color-primary-light);
            transition: all var(--transition-base);
            font-size: 0.95rem;
            text-align: center;
        }
        .btn-outline:hover {
            background: var(--color-primary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 4px 14px rgba(45, 95, 158, 0.3);
        }
        .btn-outline:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            margin-bottom: 0.75rem;
            overflow: hidden;
            background: #fff;
            transition: all var(--transition-base);
        }
        .faq-item summary {
            padding: 1rem 1.5rem;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--color-text-primary);
            background: #f8fafc;
            transition: background var(--transition-base);
            font-size: 0.95rem;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 1.4rem;
            color: var(--color-accent);
            font-weight: 300;
            transition: transform var(--transition-base);
            flex-shrink: 0;
            margin-left: 1rem;
        }
        .faq-item[open] summary::after {
            content: '−';
            transform: rotate(180deg);
        }
        .faq-item[open] summary {
            background: rgba(15, 118, 110, 0.04);
            color: var(--color-primary);
        }
        .faq-item .faq-answer {
            padding: 1rem 1.5rem 1.25rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            font-size: 0.9rem;
            border-top: 1px solid var(--color-border);
        }
        .faq-item:hover {
            border-color: var(--color-accent-light);
            box-shadow: 0 2px 12px rgba(15, 118, 110, 0.06);
        }

        /* 深色数据区块 */
        .dark-stats-section {
            background: linear-gradient(135deg, #1E3A5F 0%, #162d4a 50%, #0f2440 100%);
            color: #fff;
            border-radius: var(--radius-2xl);
            padding: 2.5rem 1.5rem;
            position: relative;
            overflow: hidden;
        }
        .dark-stats-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: rgba(15, 118, 110, 0.2);
            border-radius: 50%;
            pointer-events: none;
        }
        @media (min-width: 768px) {
            .dark-stats-section {
                padding: 3.5rem 2.5rem;
            }
        }

        /* 步骤条 */
        .step-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 1rem 0;
            position: relative;
        }
        .step-number {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(15, 118, 110, 0.3);
        }
        .step-content h4 {
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 0.25rem;
            font-size: 1.05rem;
        }
        .step-content p {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* 页脚 */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 3rem 1.5rem 2rem;
            margin-top: 3rem;
        }
        .site-footer a {
            color: #94a3b8;
            transition: color var(--transition-base);
        }
        .site-footer a:hover {
            color: #fff;
        }
        .footer-divider {
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            margin: 1.5rem 0;
        }
        @media (min-width: 768px) {
            .site-footer {
                padding: 4rem 2.5rem 2.5rem;
            }
        }

        /* 响应式补充 */
        @media (max-width: 767px) {
            .hero-image-wrapper {
                clip-path: polygon(3% 0%, 100% 0%, 100% 100%, 0% 96%);
                border-radius: var(--radius-xl);
                margin-top: 1.5rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .dark-stats-section {
                border-radius: var(--radius-xl);
                padding: 2rem 1rem;
            }
        }
        @media (max-width: 520px) {
            .nav-capsule {
                width: calc(100% - 0.75rem);
                top: 0.5rem;
                padding: 0.45rem 0.8rem;
                border-radius: var(--radius-xl);
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .hero-image-wrapper {
                clip-path: polygon(2% 0%, 100% 0%, 100% 100%, 0% 97%);
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #1E3A5F;
            --color-primary-light: #2D5F9E;
            --color-accent: #0F766E;
            --color-accent-light: #14B8A6;
            --color-bg: #F8FAFC;
            --color-card-bg: #FFFFFF;
            --color-text-primary: #1E293B;
            --color-text-secondary: #475569;
            --color-text-muted: #94A3B8;
            --color-border: #E2E8F0;
            --color-gold: #C8960C;
            --color-gold-light: #F5D77A;
            --color-diamond: #5B7DB5;
            --color-diamond-light: #A8C4E8;
            --radius-xl: 1rem;
            --radius-2xl: 1.25rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 4px 20px rgba(30, 58, 95, 0.08);
            --shadow-card-hover: 0 12px 32px rgba(30, 58, 95, 0.15);
            --shadow-nav: 0 2px 24px rgba(30, 58, 95, 0.12);
            --shadow-cover: 0 16px 48px rgba(30, 58, 95, 0.22);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        .nav-capsule {
            position: fixed;
            top: 0.75rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - 2rem);
            max-width: 1100px;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 9999px;
            padding: 0.6rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-nav);
            transition: all var(--transition-base);
            border: 1px solid rgba(226, 232, 240, 0.6);
        }

        .nav-capsule.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 28px rgba(30, 58, 95, 0.18);
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .nav-logo-icon {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--color-accent);
            border-radius: 8px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .nav-links li a {
            display: block;
            padding: 0.45rem 0.85rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-base);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--color-primary);
            background: rgba(30, 58, 95, 0.06);
        }

        .nav-links li a.active {
            color: var(--color-primary);
            font-weight: 700;
            background: rgba(30, 58, 95, 0.08);
        }

        .nav-links li a:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 2px;
        }

        .nav-cta-btn {
            background: var(--color-accent);
            color: #fff !important;
            padding: 0.5rem 1.2rem !important;
            border-radius: 9999px !important;
            font-weight: 600 !important;
            font-size: 0.85rem !important;
            transition: all var(--transition-base) !important;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta-btn:hover {
            background: #0d5f58 !important;
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(15, 118, 110, 0.35);
            transform: translateY(-1px);
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            padding: 0.5rem;
            cursor: pointer;
            flex-shrink: 0;
            z-index: 1001;
        }

        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--color-primary);
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .hamburger-btn.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.7);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

        .mobile-menu-overlay.show {
            display: block;
            opacity: 1;
        }

        .mobile-menu-panel {
            position: fixed;
            top: 0;
            right: -100%;
            width: 80%;
            max-width: 360px;
            height: 100vh;
            background: #fff;
            z-index: 1000;
            padding: 5rem 1.5rem 2rem;
            transition: right var(--transition-smooth);
            box-shadow: -8px 0 32px rgba(30, 58, 95, 0.2);
            border-radius: 1.5rem 0 0 1.5rem;
            overflow-y: auto;
        }

        .mobile-menu-panel.show {
            right: 0;
        }

        .mobile-menu-panel a {
            display: block;
            padding: 0.8rem 1rem;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--color-text-primary);
            border-radius: 0.75rem;
            transition: all var(--transition-base);
            margin-bottom: 0.25rem;
        }

        .mobile-menu-panel a:hover,
        .mobile-menu-panel a.active {
            background: rgba(30, 58, 95, 0.06);
            color: var(--color-primary);
            font-weight: 700;
        }

        .mobile-menu-panel .mobile-cta {
            margin-top: 1.5rem;
            background: var(--color-accent);
            color: #fff !important;
            text-align: center;
            font-weight: 600;
            border-radius: 9999px;
            padding: 0.75rem 1.5rem;
        }

        .btn-primary {
            display: inline-block;
            background: var(--color-primary);
            color: #fff;
            padding: 0.7rem 1.8rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            transition: all var(--transition-base);
            box-shadow: 0 4px 14px rgba(30, 58, 95, 0.25);
            cursor: pointer;
        }

        .btn-primary:hover {
            background: #152d4a;
            color: #fff;
            box-shadow: 0 6px 20px rgba(30, 58, 95, 0.35);
            transform: translateY(-2px);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
        }

        .btn-accent {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 0.7rem 1.8rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            transition: all var(--transition-base);
            box-shadow: 0 4px 14px rgba(15, 118, 110, 0.25);
            cursor: pointer;
        }

        .btn-accent:hover {
            background: #0d5f58;
            color: #fff;
            box-shadow: 0 6px 20px rgba(15, 118, 110, 0.35);
            transform: translateY(-2px);
        }

        .btn-accent:focus-visible {
            outline: 2px solid var(--color-accent-light);
            outline-offset: 3px;
        }

        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--color-primary);
            padding: 0.65rem 1.6rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.9rem;
            border: 2px solid var(--color-primary-light);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .btn-outline:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            box-shadow: 0 4px 14px rgba(30, 58, 95, 0.2);
            transform: translateY(-1px);
        }

        .btn-outline:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
        }

        .card-basic {
            background: var(--color-card-bg);
            border-radius: var(--radius-2xl);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            overflow: hidden;
        }

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

        .section-padding {
            padding-top: 4rem;
            padding-bottom: 4rem;
        }

        @media (min-width: 768px) {
            .section-padding {
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }

        @media (min-width: 1024px) {
            .section-padding {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.8);
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-base);
        }

        .breadcrumb-nav a:hover {
            color: #fff;
        }

        .breadcrumb-nav .separator {
            color: rgba(255, 255, 255, 0.5);
            user-select: none;
        }

        .breadcrumb-nav .current {
            color: #fff;
            font-weight: 600;
        }

        .hero-cover-img {
            box-shadow: var(--shadow-cover);
            border-radius: var(--radius-2xl);
            transform: perspective(800px) rotateY(-4deg) rotateX(2deg);
            transition: transform var(--transition-smooth);
        }

        .hero-cover-img:hover {
            transform: perspective(800px) rotateY(0deg) rotateX(0deg) scale(1.02);
        }

        .tier-card {
            position: relative;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }

        .tier-card.gold {
            border: 2px solid var(--color-gold);
            box-shadow: 0 8px 32px rgba(200, 150, 12, 0.2);
        }

        .tier-card.diamond {
            border: 2px solid var(--color-diamond);
            box-shadow: 0 8px 32px rgba(91, 125, 181, 0.25);
        }

        .tier-card:hover {
            transform: translateY(-6px);
        }

        .tier-badge {
            position: absolute;
            top: 1rem;
            right: 1rem;
            padding: 0.3rem 0.9rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.03em;
        }

        .tier-badge.gold-badge {
            background: linear-gradient(135deg, #C8960C, #F5D77A);
            color: #3d2e00;
        }

        .tier-badge.diamond-badge {
            background: linear-gradient(135deg, #5B7DB5, #A8C4E8);
            color: #0a1a30;
        }

        .faq-details {
            border-radius: var(--radius-xl);
            overflow: hidden;
            margin-bottom: 0.75rem;
            background: #fff;
            box-shadow: 0 2px 8px rgba(30, 58, 95, 0.04);
            transition: all var(--transition-base);
        }

        .faq-details summary {
            padding: 1.1rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text-primary);
            background: #F8FAFC;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all var(--transition-base);
            border-radius: var(--radius-xl);
        }

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

        .faq-details summary::after {
            content: '+';
            font-size: 1.5rem;
            font-weight: 300;
            color: var(--color-primary-light);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
            margin-left: 1rem;
        }

        .faq-details[open] summary {
            background: #eef2f8;
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        }

        .faq-details[open] summary::after {
            content: '−';
            transform: rotate(180deg);
        }

        .faq-details .faq-answer {
            padding: 1.1rem 1.5rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            font-size: 0.95rem;
        }

        .process-step {
            position: relative;
            text-align: center;
            padding: 1.5rem 1rem;
        }

        .process-step-num {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #fff;
            font-weight: 800;
            font-size: 1.25rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 0.75rem;
            box-shadow: 0 6px 18px rgba(15, 118, 110, 0.3);
            position: relative;
            z-index: 2;
        }

        .process-step::after {
            content: '';
            position: absolute;
            top: 26px;
            left: 60%;
            width: 80%;
            height: 3px;
            background: linear-gradient(90deg, var(--color-accent), var(--color-border));
            border-radius: 2px;
            z-index: 1;
        }

        .process-step:last-child::after {
            display: none;
        }

        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 3rem 0 1.5rem;
        }

        .site-footer a {
            color: #94a3b8;
            transition: color var(--transition-base);
        }

        .site-footer a:hover {
            color: #fff;
        }

        .footer-divider {
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            margin: 1.5rem 0;
        }

        @media (max-width: 767px) {
            .nav-capsule {
                padding: 0.5rem 1rem;
                border-radius: 2rem;
                top: 0.5rem;
                width: calc(100% - 1rem);
            }

            .nav-links {
                display: none;
            }

            .nav-cta-btn.desktop-only {
                display: none;
            }

            .hamburger-btn {
                display: block;
            }

            .nav-logo {
                font-size: 1.1rem;
            }

            .nav-logo-icon {
                width: 24px;
                height: 24px;
                border-radius: 6px;
            }

            .hero-cover-img {
                transform: none;
            }

            .process-step::after {
                display: none;
            }

            .section-padding {
                padding-top: 3rem;
                padding-bottom: 3rem;
            }
        }

        @media (min-width: 768px) {
            .hamburger-btn {
                display: none;
            }

            .mobile-menu-overlay,
            .mobile-menu-panel {
                display: none !important;
            }
        }

        @media (max-width: 1023px) {
            .nav-links li a {
                font-size: 0.8rem;
                padding: 0.4rem 0.6rem;
            }

            .nav-cta-btn {
                font-size: 0.78rem !important;
                padding: 0.45rem 1rem !important;
            }
        }