/* roulang page: index */
:root {
            --primary: #1F3D33;
            --primary-dark: #162E27;
            --primary-light: #2B5A49;
            --accent: #D9A441;
            --accent-dark: #C08F2E;
            --bg-warm: #F7F4EF;
            --bg-light: #EFEAE1;
            --text-body: #2A2A28;
            --text-secondary: #6B6B66;
            --border: #E2DCD2;
            --success: #3E7C63;
            --white: #F5F2EA;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 4px 20px rgba(31, 61, 51, 0.06);
            --shadow-hover: 0 12px 32px rgba(31, 61, 51, 0.12);
            --font-stack: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --mono-stack: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-warm);
            color: var(--text-body);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container {
            max-width: 1200px;
        }

        section {
            position: relative;
        }

        .section-padding {
            padding: 100px 0;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 64px 0;
            }
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .12em;
            color: var(--accent-dark);
            background: rgba(217, 164, 65, 0.12);
            border-radius: 999px;
            padding: 5px 16px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .section-head {
            margin-bottom: 48px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .section-head h2 {
                font-size: 26px;
            }
            .section-head p {
                font-size: 15px;
            }
        }

        /* ===== 按钮系统 ===== */
        .btn {
            border-radius: 10px;
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            letter-spacing: .03em;
            transition: all .25s ease;
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .btn:focus,
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            box-shadow: none;
        }

        .btn-accent {
            background: var(--accent);
            color: #1A1A18;
        }

        .btn-accent:hover,
        .btn-accent:focus {
            background: var(--accent-dark);
            color: #1A1A18;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(217, 164, 65, 0.3);
        }

        .btn-accent:active {
            transform: translateY(1px);
            box-shadow: none;
        }

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

        .btn-primary-custom:hover,
        .btn-primary-custom:focus {
            background: var(--primary-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(31, 61, 51, 0.25);
        }

        .btn-primary-custom:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-outline-custom {
            background: transparent;
            border: 2px solid rgba(245, 242, 234, 0.75);
            color: var(--white);
        }

        .btn-outline-custom:hover {
            background: rgba(245, 242, 234, 0.1);
            border-color: var(--white);
            color: var(--white);
            transform: translateY(-2px);
        }

        .btn-outline-custom:active {
            transform: translateY(1px);
        }

        .btn-nav-cta {
            background: var(--accent);
            color: #1A1A18;
            border-radius: 999px;
            padding: 8px 24px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            transition: all .25s ease;
        }

        .btn-nav-cta:hover {
            background: var(--accent-dark);
            color: #1A1A18;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(217, 164, 65, 0.3);
        }

        /* ===== 顶栏导航 ===== */
        .navbar-custom {
            background: var(--bg-warm);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }

        .navbar-custom .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
        }

        .navbar-custom .navbar-brand:hover {
            color: var(--primary);
        }

        .brand-box {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 9px;
            font-size: 16px;
        }

        .navbar-custom .nav-link {
            color: var(--text-body);
            font-weight: 500;
            font-size: 16px;
            padding: 8px 16px;
            border-radius: 8px;
            transition: color .2s ease, background .2s ease;
        }

        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link:focus {
            color: var(--primary);
            background: rgba(31, 61, 51, 0.08);
        }

        .navbar-custom .nav-link.active {
            color: var(--primary);
            background: rgba(31, 61, 51, 0.08);
            font-weight: 600;
        }

        .navbar-custom .navbar-toggler {
            border-color: var(--primary);
            border-radius: 8px;
            padding: 4px 10px;
        }

        .navbar-custom .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(31, 61, 51, 0.15);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(31,61,51,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 992px) {
            .navbar-custom .nav-link {
                font-size: 16px;
                padding: 10px 8px;
            }
            .navbar-custom .navbar-nav {
                padding: 16px 0;
                gap: 4px;
            }
            .btn-nav-cta {
                margin-top: 10px;
                width: 100%;
            }
        }

        /* ===== Hero 主视觉 ===== */
        .hero {
            position: relative;
            background: linear-gradient(110deg, rgba(22, 46, 39, 0.9) 0%, rgba(31, 61, 51, 0.78) 55%, rgba(43, 90, 73, 0.6) 100%),
                url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            padding: 110px 0 130px;
            color: var(--white);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(217, 164, 65, 0.18);
            border: 1px solid rgba(217, 164, 65, 0.4);
            border-radius: 999px;
            padding: 6px 18px;
            font-size: 14px;
            font-weight: 500;
            color: var(--accent);
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }

        .hero-badge .badge-icon {
            font-size: 13px;
        }

        .hero h1 {
            font-size: 46px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 22px;
            max-width: 720px;
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(245, 242, 234, 0.88);
            max-width: 620px;
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 44px;
        }

        .hero-features {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
        }

        .hero-feature {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(245, 242, 234, 0.85);
        }

        .hero-feature i {
            color: var(--accent);
            font-size: 16px;
        }

        @media (max-width: 992px) {
            .hero {
                padding: 80px 0 100px;
            }
            .hero h1 {
                font-size: 38px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
        }

        @media (max-width: 576px) {
            .hero {
                padding: 64px 0 80px;
            }
            .hero h1 {
                font-size: 31px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-features {
                gap: 16px;
            }
            .hero-feature {
                font-size: 13px;
            }
        }

        /* ===== Pill 分类导航条 ===== */
        .pill-nav {
            background: var(--bg-light);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }

        .pill-scroll {
            display: flex;
            gap: 10px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .pill-scroll::-webkit-scrollbar {
            display: none;
        }

        .pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 20px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            background: var(--bg-warm);
            color: var(--primary);
            border: 1px solid var(--border);
            white-space: nowrap;
            transition: all .2s ease;
        }

        .pill:hover,
        .pill:focus {
            background: rgba(31, 61, 51, 0.08);
            color: var(--primary);
        }

        .pill.active {
            background: var(--accent);
            color: #1A1A18;
            border-color: var(--accent);
            font-weight: 600;
        }

        @media (max-width: 576px) {
            .pill-nav {
                padding: 10px 0;
            }
            .pill {
                padding: 6px 16px;
                font-size: 13px;
            }
        }

        /* ===== 品牌故事 ===== */
        .story-section {
            background: var(--bg-warm);
        }

        .story-section .lead-text {
            font-size: 19px;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .story-section p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        .story-image-wrap {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            position: relative;
        }

        .story-image-wrap img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            display: block;
        }

        .story-image-wrap::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(31, 61, 51, 0.15));
            pointer-events: none;
        }

        /* ===== 数据指标 ===== */
        .stats-section {
            background: var(--primary);
            padding: 70px 0;
            color: var(--white);
        }

        .stats-section .stat-item {
            text-align: center;
            padding: 16px 0;
        }

        .stat-number {
            font-family: var(--mono-stack);
            font-size: 48px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(245, 242, 234, 0.75);
            margin-top: 8px;
        }

        @media (max-width: 768px) {
            .stats-section {
                padding: 48px 0;
            }
            .stat-number {
                font-size: 38px;
            }
        }

        /* ===== 精选内容卡（瀑布流） ===== */
        .featured-section {
            background: var(--bg-light);
        }

        .masonry-grid {
            columns: 3 280px;
            column-gap: 24px;
        }

        .masonry-item {
            break-inside: avoid;
            margin-bottom: 24px;
        }

        .card-resource {
            background: var(--bg-warm);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all .3s ease;
        }

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

        .card-resource .card-img-top {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
        }

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

        .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(217, 164, 65, 0.1);
            border-radius: 999px;
            padding: 3px 12px;
            margin-bottom: 12px;
        }

        .card-resource h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .card-resource p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .2s ease, color .2s ease;
        }

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

        @media (max-width: 992px) {
            .masonry-grid {
                columns: 2;
            }
        }

        @media (max-width: 576px) {
            .masonry-grid {
                columns: 1;
            }
            .card-resource .card-body {
                padding: 20px;
            }
        }

        /* ===== 口碑气泡 ===== */
        .testimonial-section {
            background: var(--bg-warm);
        }

        .quote-bubble {
            background: var(--bg-warm);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            position: relative;
            margin-bottom: 24px;
            transition: box-shadow .3s ease, transform .3s ease;
        }

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

        .quote-bubble::after {
            content: "";
            position: absolute;
            bottom: -9px;
            left: 28px;
            width: 16px;
            height: 16px;
            background: var(--bg-warm);
            border-bottom: 1px solid var(--border);
            border-right: 1px solid var(--border);
            transform: rotate(45deg);
        }

        .quote-large {
            background: var(--primary);
            border-color: var(--primary);
            color: var(--white);
        }

        .quote-large::after {
            background: var(--primary);
            border-bottom-color: var(--primary);
            border-right-color: var(--primary);
        }

        .quote-large p {
            color: rgba(245, 242, 234, 0.9);
        }

        .stars {
            color: var(--accent);
            font-size: 14px;
            letter-spacing: 2px;
            margin-bottom: 14px;
        }

        .quote-bubble p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-body);
            margin-bottom: 18px;
            font-style: italic;
        }

        .quote-author {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: auto;
        }

        .quote-author .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent);
            color: #1A1A18;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            flex-shrink: 0;
        }

        .quote-large .avatar {
            background: var(--accent);
            color: #1A1A18;
        }

        .quote-author strong {
            display: block;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.3;
        }

        .quote-author span {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .quote-large .quote-author strong {
            color: var(--white);
        }

        .quote-large .quote-author span {
            color: rgba(245, 242, 234, 0.7);
        }

        @media (max-width: 992px) {
            .quote-bubble {
                margin-bottom: 16px;
            }
        }

        /* ===== 最新动态 ===== */
        .news-section {
            background: var(--bg-light);
        }

        .news-list {
            background: var(--bg-warm);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 4px 24px;
            box-shadow: var(--shadow-sm);
        }

        .news-row {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
            flex-wrap: nowrap;
        }

        .news-row:last-child {
            border-bottom: none;
        }

        .news-date {
            font-family: var(--mono-stack);
            font-size: 13px;
            color: var(--text-secondary);
            min-width: 96px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .news-title {
            flex: 1;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            line-height: 1.6;
            transition: color .2s ease;
        }

        .news-title:hover {
            color: var(--accent-dark);
        }

        .news-tag {
            flex-shrink: 0;
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(31, 61, 51, 0.08);
            border-radius: 999px;
            padding: 3px 14px;
            white-space: nowrap;
        }

        @media (max-width: 768px) {
            .news-list {
                padding: 4px 16px;
            }
            .news-row {
                gap: 12px;
                padding: 14px 0;
                flex-wrap: wrap;
            }
            .news-date {
                min-width: 74px;
                font-size: 12px;
            }
            .news-title {
                font-size: 14px;
            }
            .news-tag {
                margin-left: 86px;
                font-size: 11px;
            }
        }

        /* ===== 订阅 CTA ===== */
        .cta-section-wrap {
            background: var(--bg-warm);
        }

        .cta-card {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 60px;
            color: var(--white);
            box-shadow: var(--shadow-hover);
        }

        .cta-card h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .cta-card p {
            font-size: 15px;
            color: rgba(245, 242, 234, 0.82);
            margin-bottom: 0;
            max-width: 440px;
        }

        .subscribe-form .form-control {
            background: rgba(245, 242, 234, 0.12);
            border: 1px solid rgba(245, 242, 234, 0.3);
            border-radius: 10px;
            color: var(--white);
            padding: 13px 18px;
            font-size: 15px;
        }

        .subscribe-form .form-control::placeholder {
            color: rgba(245, 242, 234, 0.6);
        }

        .subscribe-form .form-control:focus {
            background: rgba(245, 242, 234, 0.18);
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(217, 164, 65, 0.25);
            color: var(--white);
        }

        .form-tip {
            font-size: 13px;
            color: rgba(245, 242, 234, 0.8);
            margin-top: 10px;
            min-height: 18px;
        }

        @media (max-width: 768px) {
            .cta-card {
                padding: 40px 28px;
            }
            .cta-card h2 {
                font-size: 25px;
            }
            .subscribe-form .btn {
                width: 100%;
                border-radius: 10px;
            }
        }

        /* ===== FAQ 折叠面板 ===== */
        .faq-section {
            background: var(--bg-warm);
        }

        .accordion {
            background: transparent;
            border: none;
        }

        .accordion-item {
            background: transparent;
            border: none;
            border-top: 1px solid var(--border);
            border-radius: 0 !important;
        }

        .accordion-item:last-child {
            border-bottom: 1px solid var(--border);
        }

        .accordion-button {
            background: transparent;
            box-shadow: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-body);
            padding: 22px 0;
            border: none;
            transition: color .2s ease;
        }

        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231F3D33'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
            transition: transform .3s ease;
        }

        .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--primary);
            box-shadow: none;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(-180deg);
        }

        .accordion-button:focus,
        .accordion-button:focus-visible {
            box-shadow: none;
            outline: 2px solid rgba(31, 61, 51, 0.2);
            outline-offset: 2px;
        }

        .accordion-body {
            padding: 0 0 22px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 90%;
        }

        @media (max-width: 768px) {
            .accordion-button {
                font-size: 15px;
                padding: 18px 0;
            }
            .accordion-body {
                font-size: 14px;
                max-width: 100%;
            }
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--primary);
            color: rgba(245, 242, 234, 0.75);
            padding: 64px 0 24px;
            margin-top: 0;
        }

        .footer::before {
            content: "";
            display: block;
            width: 60px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            margin-bottom: 44px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 14px;
        }

        .footer p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(245, 242, 234, 0.7);
            max-width: 320px;
        }

        .footer h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 18px;
            letter-spacing: .02em;
        }

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

        .footer ul li {
            margin-bottom: 8px;
            font-size: 14px;
            line-height: 1.8;
        }

        .footer ul a {
            color: rgba(245, 242, 234, 0.75);
            text-decoration: none;
            transition: color .2s ease;
        }

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

        .footer ul i {
            color: var(--accent);
            margin-right: 8px;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(245, 242, 234, 0.15);
            margin-top: 44px;
            padding-top: 20px;
            font-size: 13px;
            text-align: center;
            color: rgba(245, 242, 234, 0.6);
            line-height: 1.7;
        }

        .footer-bottom a {
            color: rgba(245, 242, 234, 0.7);
        }

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

        @media (max-width: 768px) {
            .footer {
                padding-top: 48px;
            }
            .footer::before {
                margin-bottom: 32px;
            }
            .footer-bottom {
                font-size: 12px;
            }
        }

        /* ===== 可访问性与焦点 ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        ::selection {
            background: rgba(217, 164, 65, 0.25);
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1F3D33;
            --primary-dark: #162E27;
            --primary-light: #2B5A49;
            --accent: #D9A441;
            --accent-dark: #C08F2E;
            --bg-warm: #F7F4EF;
            --bg-light: #EFEAE1;
            --text-body: #2A2A28;
            --text-secondary: #6B6B66;
            --border: #E2DCD2;
            --success: #3E7C63;
            --white: #F5F2EA;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 4px 20px rgba(31, 61, 51, 0.06);
            --shadow-hover: 0 12px 32px rgba(31, 61, 51, 0.12);
            --font-stack: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --mono-stack: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
        }

        /* ===== 基础重置 ===== */
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-stack);
            background-color: var(--bg-warm);
            color: var(--text-body);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        * { box-sizing: border-box; }
        img { max-width: 100%; height: auto; }
        a { color: var(--primary); text-decoration: none; transition: color .2s ease, opacity .2s ease; }
        a:hover { color: var(--accent-dark); }
        ul, ol { list-style: none; margin: 0; padding: 0; }
        .container { max-width: 1200px; }
        section { position: relative; }
        .section-padding { padding: 100px 0; }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .12em;
            color: var(--accent-dark);
            background: rgba(217, 164, 65, 0.12);
            border-radius: 999px;
            padding: 5px 16px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .section-head { margin-bottom: 48px; }
        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
        }

        /* ===== 按钮系统 ===== */
        .btn {
            border-radius: 10px;
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            letter-spacing: .03em;
            transition: all .25s ease;
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .btn:focus, .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            box-shadow: none;
        }
        .btn-accent {
            background: var(--accent);
            color: #1A1A18;
        }
        .btn-accent:hover, .btn-accent:focus {
            background: var(--accent-dark);
            color: #1A1A18;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(217, 164, 65, 0.3);
        }
        .btn-accent:active { transform: translateY(1px); box-shadow: none; }
        .btn-primary-custom {
            background: var(--primary);
            color: var(--white);
        }
        .btn-primary-custom:hover, .btn-primary-custom:focus {
            background: var(--primary-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(31, 61, 51, 0.25);
        }
        .btn-primary-custom:active { transform: translateY(1px); box-shadow: none; }
        .btn-outline-custom {
            background: transparent;
            border: 2px solid rgba(245, 242, 234, 0.75);
            color: var(--white);
        }
        .btn-outline-custom:hover {
            background: rgba(245, 242, 234, 0.1);
            border-color: var(--white);
            color: var(--white);
            transform: translateY(-2px);
        }
        .btn-outline-custom:active { transform: translateY(1px); }
        .btn-nav-cta {
            background: var(--accent);
            color: #1A1A18;
            border-radius: 999px;
            padding: 8px 24px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            transition: all .25s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-nav-cta:hover {
            background: var(--accent-dark);
            color: #1A1A18;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(217, 164, 65, 0.3);
        }
        .btn-nav-cta:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== 顶栏导航 ===== */
        .navbar-custom {
            background: var(--bg-warm);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }
        .navbar-custom .container { position: relative; }
        .navbar-custom .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
        }
        .navbar-custom .navbar-brand:hover { color: var(--primary); }
        .brand-box {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 9px;
            font-size: 16px;
        }
        .navbar-custom .nav-link {
            color: var(--text-body);
            font-weight: 500;
            font-size: 16px;
            padding: 8px 16px;
            border-radius: 8px;
            transition: color .2s ease, background .2s ease;
        }
        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link:focus {
            color: var(--accent-dark);
            background: rgba(217, 164, 65, 0.08);
        }
        .navbar-custom .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(31, 61, 51, 0.08);
        }
        .navbar-custom .navbar-toggler {
            border: none;
            outline: none;
            box-shadow: none;
        }
        .navbar-custom .navbar-toggler:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            box-shadow: none;
        }
        .navbar-toggler-icon {
            height: 22px;
            width: 22px;
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(31,61,51,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.5' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== 分类页 Hero ===== */
        .page-hero {
            min-height: 340px;
            display: flex;
            align-items: center;
            background-color: var(--primary-dark);
            overflow: hidden;
        }
        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center center;
            z-index: 0;
        }
        .page-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(22, 46, 39, 0.92) 30%, rgba(31, 61, 51, 0.68) 70%, rgba(43, 90, 73, 0.55) 100%);
            z-index: 1;
        }
        .page-hero-content {
            position: relative;
            z-index: 2;
            color: var(--white);
            padding: 60px 0 40px;
            width: 100%;
        }
        .page-hero-content h1 {
            font-size: 42px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: #fff;
            margin: 10px 0 16px;
            line-height: 1.3;
        }
        .page-hero-desc {
            font-size: 17px;
            color: rgba(245, 242, 234, 0.88);
            max-width: 620px;
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .breadcrumb {
            background: transparent;
            padding: 0;
            margin: 0 0 14px;
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            font-size: 14px;
        }
        .breadcrumb li { display: inline-flex; align-items: center; color: rgba(245, 242, 234, 0.7); }
        .breadcrumb li + li::before {
            content: "/";
            margin: 0 10px;
            color: rgba(245, 242, 234, 0.4);
        }
        .breadcrumb a { color: rgba(245, 242, 234, 0.9); text-decoration: none; }
        .breadcrumb a:hover { color: var(--accent); }
        .breadcrumb .active { color: var(--accent); font-weight: 500; }
        .hero-points {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            margin-top: 18px;
        }
        .hero-point {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(245, 242, 234, 0.85);
            background: rgba(245, 242, 234, 0.08);
            border: 1px solid rgba(245, 242, 234, 0.15);
            border-radius: 999px;
            padding: 6px 16px;
        }
        .hero-point i { color: var(--accent); font-size: 13px; }

        /* ===== Pill 分类条 ===== */
        .pill-filter-bar {
            background: var(--bg-light);
            border-bottom: 1px solid var(--border);
            position: relative;
            z-index: 2;
        }
        .pill-filter-list {
            display: flex;
            gap: 10px;
            overflow-x: auto;
            padding: 16px 0;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .pill-filter-list::-webkit-scrollbar { display: none; }
        .pill-chip {
            flex: 0 0 auto;
            background: var(--white);
            border: 1px solid var(--border);
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            padding: 6px 18px;
            border-radius: 999px;
            transition: all .2s ease;
            display: inline-block;
        }
        .pill-chip:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #1A1A18;
            transform: translateY(-1px);
        }
        .pill-chip.active {
            background: var(--accent);
            border-color: var(--accent);
            color: #1A1A18;
            font-weight: 600;
        }

        /* ===== 分类描述区 ===== */
        .category-intro {
            padding: 80px 0 60px;
            background: var(--bg-warm);
        }
        .category-intro .intro-text h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }
        .category-intro .intro-text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 8px;
        }
        .intro-stats {
            display: flex;
            gap: 16px;
            justify-content: flex-end;
        }
        .stat-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            text-align: center;
            flex: 1;
            box-shadow: var(--shadow-sm);
            transition: box-shadow .3s ease;
        }
        .stat-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .stat-num {
            display: block;
            font-family: var(--mono-stack);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent-dark);
            line-height: 1.2;
        }
        .stat-label {
            display: block;
            margin-top: 6px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* ===== 内容卡片列表 ===== */
        .resource-list {
            padding: 40px 0 80px;
            background: var(--bg-warm);
        }
        .resource-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform .3s ease, box-shadow .3s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .resource-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .card-img-wrap {
            display: block;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-light);
            border-radius: 0;
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .resource-card:hover .card-img-wrap img { transform: scale(1.04); }
        .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }
        .meta-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(217, 164, 65, 0.12);
            border-radius: 999px;
            padding: 3px 12px;
        }
        .meta-date {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .card-body h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .card-body h3 a { color: var(--text-body); }
        .card-body h3 a:hover { color: var(--primary-light); }
        .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex-grow: 1;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            border-bottom: 1px solid transparent;
            transition: border-color .2s ease, color .2s ease;
        }
        .card-link:hover {
            color: var(--accent-dark);
            border-bottom-color: var(--accent-dark);
        }
        .card-link i { font-size: 12px; transition: transform .2s ease; }
        .card-link:hover i { transform: translateX(3px); }

        /* ===== CTA 区 ===== */
        .cta-section {
            padding: 64px 0 96px;
            background: var(--bg-warm);
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            color: var(--white);
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(217, 164, 65, 0.12);
        }
        .cta-box h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .cta-box p {
            color: rgba(245, 242, 234, 0.82);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 16px;
        }
        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 80px 0 100px;
            background: var(--bg-light);
        }
        .custom-accordion {
            max-width: 820px;
            margin: 0 auto;
        }
        .custom-accordion .accordion-item {
            background: transparent;
            border: none;
            border-top: 1px solid var(--border);
            border-radius: 0;
            box-shadow: none;
        }
        .custom-accordion .accordion-item:last-child {
            border-bottom: 1px solid var(--border);
        }
        .custom-accordion .accordion-header {
            background: transparent;
        }
        .custom-accordion .accordion-button {
            background: transparent;
            box-shadow: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-body);
            padding: 20px 8px;
            border: none;
        }
        .custom-accordion .accordion-button:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            box-shadow: none;
        }
        .custom-accordion .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--primary);
            box-shadow: none;
        }
        .custom-accordion .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231F3D33'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }
        .custom-accordion .accordion-button:not(.collapsed)::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231F3D33'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }
        .custom-accordion .accordion-body {
            padding: 0 8px 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--primary-dark);
            color: rgba(245, 242, 234, 0.75);
            padding: 64px 0 0;
            border-top: 3px solid var(--accent);
        }
        .footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 14px;
        }
        .footer p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(245, 242, 234, 0.65);
            margin-bottom: 0;
        }
        .footer h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 16px;
        }
        .footer ul li {
            margin-bottom: 8px;
            font-size: 14px;
            color: rgba(245, 242, 234, 0.65);
        }
        .footer ul li a {
            color: rgba(245, 242, 234, 0.65);
            transition: color .2s ease;
        }
        .footer ul li a:hover { color: var(--accent); }
        .footer ul li i {
            color: var(--accent);
            margin-right: 8px;
            width: 14px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(245, 242, 234, 0.12);
            margin-top: 48px;
            padding: 20px 0;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 13px;
            color: rgba(245, 242, 234, 0.45);
            margin: 0;
        }

        /* ===== 响应式断点 ===== */
        @media (max-width: 991.98px) {
            .section-padding { padding: 72px 0; }
            .page-hero { min-height: 300px; }
            .page-hero-content h1 { font-size: 34px; }
            .intro-stats { justify-content: flex-start; }
            .intro-stats .stat-item { max-width: 140px; }
            .footer { padding-top: 48px; }
        }

        @media (max-width: 767.98px) {
            .section-padding { padding: 56px 0; }
            .page-hero { min-height: 280px; }
            .page-hero-content { padding: 40px 0 30px; }
            .page-hero-content h1 { font-size: 28px; }
            .page-hero-desc { font-size: 15px; }
            .hero-points { gap: 10px; }
            .hero-point { font-size: 13px; padding: 4px 12px; }
            .category-intro { padding: 56px 0 40px; }
            .intro-stats { flex-wrap: wrap; gap: 10px; margin-top: 20px; }
            .intro-stats .stat-item { flex: 1 1 calc(33.33% - 10px); max-width: none; padding: 14px 10px; }
            .stat-num { font-size: 22px; }
            .resource-list { padding: 32px 0 56px; }
            .card-body { padding: 18px; }
            .card-body h3 { font-size: 17px; }
            .cta-section { padding: 48px 0 64px; }
            .cta-box { padding: 36px 20px; border-radius: var(--radius-md); }
            .cta-box h2 { font-size: 24px; }
            .faq-section { padding: 56px 0 72px; }
            .section-head h2 { font-size: 26px; }
            .navbar-custom .nav-link {
                font-size: 16px;
                padding: 10px 16px;
                border-bottom: 1px solid var(--border);
                border-radius: 0;
            }
            .navbar-custom .nav-link:last-of-type { border-bottom: none; }
            .navbar-custom .navbar-collapse {
                padding-top: 12px;
            }
            .btn-nav-cta {
                margin-top: 10px;
                width: 100%;
                justify-content: center;
                padding: 10px 18px;
            }
            .navbar-custom .nav-item.ms-lg-3 { margin-left: 0; }
        }

        @media (max-width: 575.98px) {
            .page-hero { min-height: 260px; }
            .page-hero-content h1 { font-size: 24px; }
            .page-hero-desc { font-size: 14px; }
            .breadcrumb { font-size: 13px; }
            .hero-point { font-size: 12px; padding: 4px 10px; }
            .hero-point i { font-size: 12px; }
            .intro-stats .stat-item { padding: 12px 8px; }
            .stat-num { font-size: 20px; }
            .cta-buttons .btn { width: 100%; }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}