/* roulang page: index */
:root {
            --brand: #C1121F;
            --brand-dark: #9B0E18;
            --brand-light: #E5383B;
            --accent: #F77F00;
            --accent-dark: #E56E00;
            --ink: #1C1917;
            --paper: #F7F3EC;
            --card: #FFFFFF;
            --line: #E8DFD3;
            --muted: #78716C;
            --radius: 0.75rem;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, .06), 0 4px 12px rgba(0, 0, 0, .04);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, .10);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--paper);
            color: var(--ink);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s, background .2s, border-color .2s, transform .2s;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all .2s;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: 80rem;
            margin: 0 auto;
            padding: 0 1rem;
        }
        @media(min-width:640px) {
            .container {
                padding: 0 1.5rem;
            }
        }
        @media(min-width:1024px) {
            .container {
                padding: 0 2rem;
            }
        }

        .btn {
            display: inline-block;
            padding: .75rem 1.75rem;
            border-radius: 9999px;
            font-weight: 600;
            text-align: center;
            transition: all .25s;
            line-height: 1.4;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 2px 8px rgba(247, 127, 0, .3);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(247, 127, 0, .4);
        }
        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 2px 4px rgba(247, 127, 0, .2);
        }
        .btn-brand {
            background: var(--brand);
            color: #fff;
            box-shadow: 0 2px 8px rgba(193, 18, 31, .25);
        }
        .btn-brand:hover {
            background: var(--brand-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(193, 18, 31, .35);
        }
        .btn-brand:active {
            transform: translateY(0);
        }
        .btn-white {
            background: #fff;
            color: var(--brand);
            box-shadow: 0 2px 8px rgba(0, 0, 0, .08);
        }
        .btn-white:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline {
            border: 2px solid rgba(255, 255, 255, .8);
            color: #fff;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
        }
        .btn-outline:active {
            background: rgba(255, 255, 255, .2);
        }

        .nav-link {
            position: relative;
            padding: .5rem .25rem;
            font-weight: 500;
            color: rgba(255, 255, 255, .9);
            transition: color .2s, background .2s;
        }
        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, .1);
            border-radius: .5rem;
            padding: .5rem .75rem;
        }
        .nav-link.active {
            color: #fff;
            font-weight: 700;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: .5rem;
            right: .5rem;
            bottom: 0;
            height: 2px;
            background: #fff;
            border-radius: 2px;
        }
        .mobile-nav-link {
            display: block;
            padding: .875rem 1rem;
            color: rgba(255, 255, 255, .9);
            font-weight: 500;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
            transition: background .2s;
        }
        .mobile-nav-link:hover {
            background: rgba(255, 255, 255, .08);
            color: #fff;
        }

        .hero-title {
            font-size: 2rem;
            line-height: 1.15;
            font-weight: 900;
            letter-spacing: -0.02em;
            color: #fff;
        }
        @media(min-width:768px) {
            .hero-title {
                font-size: 3rem;
            }
        }
        @media(min-width:1024px) {
            .hero-title {
                font-size: 3.75rem;
            }
        }

        .section-title {
            font-size: 1.875rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.25;
            position: relative;
            padding-left: 1rem;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: .25rem;
            bottom: .25rem;
            width: 4px;
            background: var(--brand);
            border-radius: 4px;
        }
        @media(min-width:768px) {
            .section-title {
                font-size: 2.25rem;
                padding-left: 1.25rem;
            }
        }

        .card {
            background: var(--card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--line);
            transition: box-shadow .25s, border-color .25s, transform .25s;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            border-color: rgba(193, 18, 31, .4);
        }

        .tag {
            display: inline-block;
            padding: .25rem .75rem;
            border-radius: 9999px;
            font-size: .75rem;
            font-weight: 600;
            background: rgba(193, 18, 31, .08);
            color: var(--brand);
        }
        .tag-accent {
            background: rgba(247, 127, 0, .12);
            color: var(--accent-dark);
        }
        .tag-green {
            background: rgba(16, 122, 87, .1);
            color: #107A57;
        }

        .form-input,
        .form-textarea,
        .form-select {
            width: 100%;
            border-radius: .75rem;
            border: 1px solid var(--line);
            background: #fff;
            padding: .75rem 1rem;
            font-size: .875rem;
            color: var(--ink);
            transition: border-color .2s, box-shadow .2s;
            outline: none;
        }
        .form-input:focus,
        .form-textarea:focus,
        .form-select:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(193, 18, 31, .15);
        }
        .form-input::placeholder,
        .form-textarea::placeholder {
            color: #A8A29E;
        }

        .faq-item {
            transition: box-shadow .2s;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease, padding .3s;
        }
        .faq-item.active .faq-answer {
            max-height: 200px;
            padding-top: 1rem;
        }
        .faq-chevron {
            transition: transform .3s;
        }
        .faq-item.active .faq-chevron {
            transform: rotate(45deg);
        }

        .timeline-dot {
            position: relative;
        }
        .timeline-dot::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 100%;
            width: 2px;
            height: 2.5rem;
            background: var(--line);
            transform: translateX(-50%);
        }
        .timeline-dot:last-child::before {
            display: none;
        }

        .heat-bar {
            height: 6px;
            border-radius: 9999px;
            background: #F1EDE6;
            overflow: hidden;
        }
        .heat-bar-fill {
            height: 100%;
            border-radius: 9999px;
            background: linear-gradient(90deg, var(--brand), var(--accent));
            transition: width .6s ease;
        }

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

        .img-cover {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .img-wrap {
            background: var(--paper);
            border: 2px dashed var(--line);
            border-radius: var(--radius);
            overflow: hidden;
        }

        .back-to-top {
            width: 44px;
            height: 44px;
            border-radius: 9999px;
            background: rgba(255, 255, 255, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            transition: background .2s, transform .2s;
        }
        .back-to-top:hover {
            background: rgba(255, 255, 255, .2);
            transform: translateY(-3px);
        }

        .pagination-page {
            width: 40px;
            height: 40px;
            border-radius: 9999px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .875rem;
            font-weight: 600;
            color: var(--muted);
            transition: all .2s;
            border: 1px solid transparent;
        }
        .pagination-page:hover {
            background: var(--paper);
            border-color: var(--line);
        }
        .pagination-page.active {
            background: var(--brand);
            color: #fff;
        }
        .pagination-page.disabled {
            opacity: .4;
            pointer-events: none;
        }

        .footer-link {
            color: rgba(255, 255, 255, .6);
            transition: color .2s, padding-left .2s;
        }
        .footer-link:hover {
            color: #fff;
            padding-left: .25rem;
        }
        .section-number {
            font-size: 3.5rem;
            font-weight: 900;
            color: rgba(193, 18, 31, .15);
            line-height: 1;
        }

        .badge-hot {
            display: inline-flex;
            align-items: center;
            gap: .25rem;
            padding: .25rem .75rem;
            border-radius: 9999px;
            background: rgba(247, 127, 0, .15);
            color: var(--accent-dark);
            font-size: .75rem;
            font-weight: 700;
        }

/* roulang page: category1 */
:root {
            --brand: #C1121F;
            --brand-dark: #9B0E18;
            --brand-light: #E5383B;
            --accent: #F77F00;
            --accent-dark: #E56E00;
            --ink: #1C1917;
            --paper: #F7F3EC;
            --card: #FFFFFF;
            --line: #E8DFD3;
            --muted: #78716C;
            --radius: 0.75rem;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, .06), 0 4px 12px rgba(0, 0, 0, .04);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, .10);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--paper);
            color: var(--ink);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s, background .2s, border-color .2s, transform .2s;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all .2s;
        }
        .container {
            max-width: 80rem;
            margin: 0 auto;
            padding: 0 1rem;
        }
        @media(min-width:768px) {
            .container {
                padding: 0 1.5rem;
            }
        }
        @media(min-width:1024px) {
            .container {
                padding: 0 2rem;
            }
        }
        .btn {
            display: inline-block;
            padding: .75rem 1.75rem;
            border-radius: 9999px;
            font-weight: 600;
            text-align: center;
            transition: all .25s;
            line-height: 1.4;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 2px 8px rgba(247, 127, 0, .3);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(247, 127, 0, .4);
        }
        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 2px 4px rgba(247, 127, 0, .2);
        }
        .btn-brand {
            background: var(--brand);
            color: #fff;
            box-shadow: 0 2px 8px rgba(193, 18, 31, .25);
        }
        .btn-brand:hover {
            background: var(--brand-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(193, 18, 31, .35);
        }
        .btn-brand:active {
            transform: translateY(0);
        }
        .btn-white {
            background: #fff;
            color: var(--brand);
            box-shadow: 0 2px 8px rgba(0, 0, 0, .08);
        }
        .btn-white:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline {
            border: 2px solid rgba(255, 255, 255, .8);
            color: #fff;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
        }
        .btn-outline:active {
            background: rgba(255, 255, 255, .2);
        }
        .nav-link {
            position: relative;
            padding: .5rem .25rem;
            font-weight: 500;
            color: rgba(255, 255, 255, .9);
            transition: color .2s, background .2s;
        }
        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, .1);
            border-radius: .5rem;
            padding: .5rem .75rem;
        }
        .nav-link.active {
            color: #fff;
            font-weight: 700;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: .5rem;
            right: .5rem;
            bottom: 0;
            height: 2px;
            background: #fff;
            border-radius: 2px;
        }
        .mobile-nav-link {
            display: block;
            padding: .875rem 1rem;
            color: rgba(255, 255, 255, .9);
            font-weight: 500;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
            transition: background .2s;
        }
        .mobile-nav-link:hover {
            background: rgba(255, 255, 255, .08);
            color: #fff;
        }
        .card {
            background: var(--card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--line);
            transition: box-shadow .25s, border-color .25s, transform .25s;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            border-color: rgba(193, 18, 31, .4);
        }
        .tag {
            display: inline-block;
            padding: .25rem .75rem;
            border-radius: 9999px;
            font-size: .75rem;
            font-weight: 600;
            background: rgba(193, 18, 31, .08);
            color: var(--brand);
        }
        .tag-accent {
            background: rgba(247, 127, 0, .12);
            color: var(--accent-dark);
        }
        .tag-green {
            background: rgba(16, 122, 87, .1);
            color: #107A57;
        }
        .footer-link {
            color: rgba(255, 255, 255, .7);
            transition: color .2s;
        }
        .footer-link:hover {
            color: #fff;
        }
        .back-to-top {
            width: 2.75rem;
            height: 2.75rem;
            border-radius: 9999px;
            background: rgba(255, 255, 255, .1);
            color: #fff;
            font-size: 1.125rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background .2s, transform .2s;
        }
        .back-to-top:hover {
            background: rgba(255, 255, 255, .2);
            transform: translateY(-2px);
        }
        .chip {
            display: inline-flex;
            align-items: center;
            padding: .375rem 1rem;
            border-radius: 9999px;
            border: 1px solid var(--line);
            background: #fff;
            font-size: .875rem;
            font-weight: 500;
            color: var(--muted);
            transition: all .2s;
            white-space: nowrap;
        }
        .chip:hover {
            background: rgba(193, 18, 31, .05);
            border-color: rgba(193, 18, 31, .4);
            color: var(--brand);
        }
        .chip.active {
            background: var(--brand);
            border-color: var(--brand);
            color: #fff;
            font-weight: 600;
        }
        .sort-btn {
            font-size: .875rem;
            font-weight: 500;
            color: var(--muted);
            padding-bottom: .25rem;
            position: relative;
            transition: color .2s;
        }
        .sort-btn:hover {
            color: var(--brand);
        }
        .sort-btn.active {
            color: var(--brand);
            font-weight: 700;
        }
        .sort-btn.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
        }
        .pagination {
            display: flex;
            align-items: center;
            gap: .375rem;
            flex-wrap: wrap;
        }
        .pagination a,
        .pagination span {
            min-width: 2.5rem;
            height: 2.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: .75rem;
            font-size: .875rem;
            font-weight: 500;
            border: 1px solid var(--line);
            background: #fff;
            color: var(--ink);
            padding: 0 .75rem;
            transition: all .2s;
        }
        .pagination a:hover {
            background: var(--paper);
            border-color: var(--brand);
            color: var(--brand);
        }
        .pagination .active {
            background: var(--brand);
            border-color: var(--brand);
            color: #fff;
            font-weight: 700;
        }
        .pagination .disabled {
            opacity: .4;
            pointer-events: none;
        }
        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .line-clamp-1 {
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .form-input,
        .form-textarea,
        .form-select {
            width: 100%;
            border-radius: .75rem;
            border: 1px solid var(--line);
            background: #fff;
            padding: .75rem 1rem;
            font-size: .875rem;
            color: var(--ink);
            transition: border-color .2s, box-shadow .2s;
            outline: none;
        }
        .form-input:focus,
        .form-textarea:focus,
        .form-select:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(193, 18, 31, .15);
        }
        .cover-img-wrap {
            background: var(--paper);
            border: 1px dashed var(--line);
            border-radius: .5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 120px;
        }