/* roulang page: index */
:root {
            --c-primary: #7C5CE0;
            --c-primary-dark: #5A3DB8;
            --c-mint: #4FD1C5;
            --c-bg: #F7F5FF;
            --c-bg-deep: #252041;
            --c-text: #1F1B2D;
            --c-text-weak: #6F658D;
            --c-border: rgba(124, 92, 224, 0.15);
            --radius-card: 1.25rem;
            --radius-btn: 0.75rem;
            --shadow-card: 0 8px 30px rgba(124, 92, 224, 0.08);
            --shadow-card-hover: 0 16px 40px rgba(124, 92, 224, 0.15);
            --font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--c-bg);
            color: var(--c-text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        .container-custom {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .section-padding {
            padding-top: 6rem;
            padding-bottom: 6rem;
        }
        .hover-lift {
            transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.3s;
        }
        .hover-lift:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-card-hover);
        }
        .btn-focus:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(124, 92, 224, 0.3);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            padding-top: 0;
            padding-bottom: 0;
            color: #4B4258;
            font-size: 0.95rem;
            line-height: 1.8;
            border-bottom: 1px solid transparent;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 0.5rem;
            padding-bottom: 1.25rem;
            border-bottom-color: var(--c-border);
        }
        .faq-icon {
            transition: transform 0.3s ease;
            flex-shrink: 0;
            width: 1.5rem;
            height: 1.5rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 9999px;
            background: rgba(124, 92, 224, 0.12);
            color: var(--c-primary);
            font-size: 1rem;
            font-weight: 600;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--c-primary);
            color: white;
        }
        .faq-question {
            transition: color 0.2s;
            cursor: pointer;
            padding: 1.25rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            font-weight: 600;
            font-size: 1.05rem;
            color: #2C2643;
            border-bottom: 1px solid rgba(124, 92, 224, 0.1);
        }
        .faq-question:hover {
            color: var(--c-primary);
        }
        .search-box {
            transition: box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .search-box:focus-within {
            box-shadow: 0 0 0 4px rgba(124, 92, 224, 0.18);
            border-color: var(--c-primary);
        }
        .header-nav-link.active {
            color: var(--c-primary);
            font-weight: 600;
        }
        .header-nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 20%;
            width: 60%;
            height: 2px;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--c-primary), var(--c-mint));
        }
        .header-nav-link {
            position: relative;
            padding: 0.25rem 0.5rem;
            color: #494168;
            font-size: 0.93rem;
            transition: color 0.2s;
            display: inline-block;
        }
        .header-nav-link:hover {
            color: var(--c-primary);
        }
        .float-anim {
            animation: floatY 4s ease-in-out infinite;
        }
        .float-anim-delay {
            animation: floatY 4s ease-in-out 1.5s infinite;
        }
        @keyframes floatY {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-10px);
            }
        }
        .spotlight-bg {
            background-image: radial-gradient(circle at 10% 20%, rgba(244, 153, 208, 0.15) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(79, 209, 197, 0.15) 0%, transparent 40%),
                radial-gradient(circle at 80% 10%, rgba(124, 92, 224, 0.08) 0%, transparent 50%);
        }
        .magic-grid-bg {
            background-image: linear-gradient(rgba(124, 92, 224, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(124, 92, 224, 0.04) 1px, transparent 1px);
            background-size: 44px 44px;
        }
        .custom-select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%237C5CE0' viewBox='0 0 20 20'%3E%3Cpath d='M5.5 7l4.5 4.5L14.5 7' stroke='%237C5CE0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
            background-position: right 1rem center;
            background-size: 1.25rem;
            background-repeat: no-repeat;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding-top: 3.5rem;
                padding-bottom: 3.5rem;
            }
            .hero-right-display {
                margin-top: 2.5rem;
            }
        }
        .no-scrollbar::-webkit-scrollbar {
            display: none;
        }
        .no-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }
        .gradient-text {
            background: linear-gradient(90deg, #7C5CE0, #D7689E, #F09E6D);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .cover-zoom {
            overflow: hidden;
        }
        .cover-zoom img {
            transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
        }
        .cover-zoom:hover img {
            transform: scale(1.06);
        }
        .card-transition {
            transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
        }
        .card-transition:hover {
            border-color: rgba(124, 92, 224, 0.35);
            box-shadow: 0 12px 32px rgba(124, 92, 224, 0.1);
            transform: translateY(-4px);
        }
        @keyframes countUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .number-item {
            animation: countUp 0.8s ease forwards;
            opacity: 0;
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.72);
            transition: color 0.2s ease;
            font-size: 0.9rem;
        }
        .footer-link:hover {
            color: white;
        }
        .select-wrap select {
            cursor: pointer;
        }
        .btn-ghost-light {
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: white;
            transition: background 0.3s ease, border-color 0.3s ease;
        }
        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: white;
        }

/* roulang page: category1 */
:root {
            --c-primary: #7C5CE0;
            --c-primary-dark: #5A3DB8;
            --c-mint: #4FD1C5;
            --c-bg: #F7F5FF;
            --c-bg-deep: #252041;
            --c-text: #1F1B2D;
            --c-text-weak: #6F658D;
            --c-border: rgba(124, 92, 224, 0.15);
            --radius-card: 1.25rem;
            --radius-btn: 0.75rem;
            --shadow-card: 0 8px 30px rgba(124, 92, 224, 0.08);
            --shadow-card-hover: 0 16px 40px rgba(124, 92, 224, 0.15);
            --font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--c-bg);
            color: var(--c-text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        .container-custom {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .section-padding {
            padding-top: 4.5rem;
            padding-bottom: 4.5rem;
        }
        .btn-focus:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(124, 92, 224, 0.3);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            padding-top: 0;
            padding-bottom: 0;
            color: #4B4258;
            font-size: 0.95rem;
            line-height: 1.8;
            border-bottom: 1px solid transparent;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 0.5rem;
            padding-bottom: 1.25rem;
            border-bottom-color: var(--c-border);
        }
        .faq-icon {
            transition: transform 0.3s ease;
            flex-shrink: 0;
            width: 1.5rem;
            height: 1.5rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 9999px;
            background: rgba(124, 92, 224, 0.12);
            color: var(--c-primary);
            font-size: 1rem;
            font-weight: 600;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--c-primary);
            color: white;
        }
        .faq-question {
            transition: color 0.2s;
            cursor: pointer;
            padding: 1.25rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            font-weight: 600;
            font-size: 1.05rem;
            color: #2C2643;
            border-bottom: 1px solid rgba(124, 92, 224, 0.1);
        }
        .faq-question:hover {
            color: var(--c-primary);
        }
        .search-box {
            transition: box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .search-box:focus-within {
            box-shadow: 0 0 0 4px rgba(124, 92, 224, 0.18);
            border-color: var(--c-primary);
        }
        .header-nav-link.active {
            color: var(--c-primary);
            font-weight: 600;
        }
        .header-nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 20%;
            width: 60%;
            height: 2px;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--c-primary), var(--c-mint));
        }
        .header-nav-link {
            position: relative;
            padding: 0.25rem 0.5rem;
            color: #494168;
            font-size: 0.93rem;
            transition: color 0.2s;
            display: inline-block;
        }
        .header-nav-link:hover {
            color: var(--c-primary);
        }
        .magic-grid-bg {
            background-image: linear-gradient(rgba(124, 92, 224, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(124, 92, 224, 0.04) 1px, transparent 1px);
            background-size: 44px 44px;
        }
        .custom-select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%237C5CE0' viewBox='0 0 20 20'%3E%3Cpath d='M5.5 7l4.5 4.5L14.5 7' stroke='%237C5CE0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
            background-position: right 1rem center;
            background-size: 1.25rem;
            background-repeat: no-repeat;
        }
        .cover-zoom img {
            transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
        }
        .cover-zoom:hover img {
            transform: scale(1.06);
        }
        .card-transition {
            transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
        }
        .card-transition:hover {
            border-color: rgba(124, 92, 224, 0.35);
            box-shadow: 0 12px 32px rgba(124, 92, 224, 0.1);
            transform: translateY(-4px);
        }
        .number-item {
            animation: countUp 0.8s ease forwards;
            opacity: 0;
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.72);
            transition: color 0.2s ease;
            font-size: 0.9rem;
        }
        .footer-link:hover {
            color: white;
        }
        .select-wrap select {
            cursor: pointer;
        }
        .btn-ghost-light {
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: white;
            transition: background 0.3s ease, border-color 0.3s ease;
        }
        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: white;
        }

        /* 按钮与通用组件 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-btn);
            background: var(--c-primary);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            transition: all 0.25s ease;
            border: 1px solid var(--c-primary);
        }
        .btn-primary:hover {
            background: var(--c-primary-dark);
            border-color: var(--c-primary-dark);
            box-shadow: 0 12px 28px rgba(124, 92, 224, 0.28);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-btn);
            background: rgba(255, 255, 255, 0.7);
            border: 1px solid rgba(124, 92, 224, 0.35);
            color: var(--c-primary);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.25s ease;
        }
        .btn-outline:hover {
            background: #fff;
            border-color: var(--c-primary);
            box-shadow: 0 8px 24px rgba(124, 92, 224, 0.12);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: scale(0.97);
        }
        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-btn);
            background: #fff;
            color: var(--c-primary);
            font-weight: 700;
            font-size: 0.95rem;
            transition: all 0.25s ease;
            box-shadow: 0 6px 18px rgba(37, 32, 65, 0.18);
        }
        .btn-white:hover {
            transform: scale(1.04);
            box-shadow: 0 12px 30px rgba(37, 32, 65, 0.25);
        }
        .btn-white:active {
            transform: scale(0.97);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.2rem 0.75rem;
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(124, 92, 224, 0.1);
            color: var(--c-primary);
            border: 1px solid rgba(124, 92, 224, 0.15);
        }
        .chip-tag {
            display: inline-flex;
            align-items: center;
            padding: 0.3rem 1rem;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.7);
            border: 1px solid rgba(124, 92, 224, 0.2);
            color: #494168;
            transition: all 0.2s ease;
        }
        .chip-tag:hover {
            border-color: var(--c-primary);
            color: var(--c-primary);
            background: #fff;
        }
        .work-row {
            transition: box-shadow 0.3s ease, background 0.3s ease;
        }
        .work-row:hover {
            background: rgba(255, 255, 255, 0.55);
            box-shadow: 0 10px 30px rgba(124, 92, 224, 0.05);
        }
        .text-gradient-primary {
            background: linear-gradient(90deg, #7C5CE0, #C084FC, #F59E0B);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .cat-tab {
            padding: 0.35rem 1.25rem;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 600;
            color: #494168;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .cat-tab:hover {
            color: var(--c-primary);
            background: rgba(124, 92, 224, 0.08);
        }
        .cat-tab.active {
            background: var(--c-primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(124, 92, 224, 0.28);
        }
        @media (max-width: 768px) {
            .section-padding {
                padding-top: 3rem;
                padding-bottom: 3rem;
            }
        }