/* 全局滚动条美化 */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        ::-webkit-scrollbar-track {
            background: #f5f5f5;
        }
        ::-webkit-scrollbar-thumb {
            background: #c9a96e;
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #b8956a;
        }

        .sidebar-header {
            padding: 2rem 1.5rem 1.2rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            margin-bottom: 0.5rem;
            background: rgba(0, 0, 0, 0.2);
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .logo-icon {
            font-size: 2rem;
            filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
        }

        .logo-text {
            flex: 1;
        }

        .logo-title {
            font-size: 1.125rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        .logo-subtitle {
            font-size: 0.75rem;
            font-weight: 600;
            color: #c9a96e;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-top: 0.125rem;
        }

        .nav-menu {
            padding: 0.5rem 0;
        }

        .nav-section {
            margin-bottom: 0.8rem;
        }

        .nav-section-title {
            font-size: 0.65rem;
            font-weight: 700;
            color: rgba(255, 255, 255, 0.4);
            text-transform: uppercase;
            letter-spacing: 0.15em;
            padding: 0.5rem 1.5rem 0.3rem;
            margin-bottom: 0.2rem;
            position: relative;
        }

        .nav-section-title a {
            color: inherit;
            text-decoration: none;
            cursor: pointer;
        }

        .nav-section-title a:hover {
            color: rgba(255, 255, 255, 0.8);
        }

        .nav-section-title::after {
            content: '';
            position: absolute;
            right: 1.5rem;
            top: 50%;
            transform: translateY(-50%);
            border-left: 3px solid transparent;
            border-right: 3px solid transparent;
            border-top: 4px solid rgba(255, 255, 255, 0.6);
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .nav-section-title.section-collapsed::after {
            transform: translateY(-50%) rotate(-90deg);
        }

        .nav-item {
            display: block;
            padding: 0.6rem 1.5rem;
            color: rgba(255, 255, 255, 0.85);
            text-decoration: none;
            font-size: 0.875rem;
            font-weight: 500;
            transition: all 0.2s ease;
            position: relative;
            line-height: 1.3;
            border-radius: 4px;
            margin-right: 0;
        }

        .nav-item:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-item.active {
            color: #ffffff;
            background: rgba(201, 169, 110, 0.15);
            font-weight: 600;
        }


        .nav-item.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: #c9a96e;
            border-radius: 0 2px 2px 0;
        }

        .nav-sub-item {
            padding: 0.4rem 1.5rem 0.4rem 2.2rem;
            font-size: 0.8rem;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.3;
            border-radius: 4px;
            margin-right: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .nav-sub-item:hover {
            color: rgba(255, 255, 255, 0.9);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-sub-item.active {
            color: #ffffff;
            background: rgba(201, 169, 110, 0.1);
            font-weight: 500;
        }

        .nav-number {
            font-weight: 700;
            color: #c9a96e;
            font-size: 0.75rem;
            min-width: 1.2rem;
            background: rgba(201, 169, 110, 0.15);
            padding: 0.15rem 0.4rem;
            border-radius: 3px;
            text-align: center;
        }

        .nav-expandable {
            position: relative;
        }

        .nav-expandable::after {
            content: '';
            position: absolute;
            right: 1.2rem;
            top: 50%;
            transform: translateY(-50%);
            width: 0;
            height: 0;
            border-left: 3px solid transparent;
            border-right: 3px solid transparent;
            border-top: 4px solid rgba(255, 255, 255, 0.6);
            transition: all 0.2s ease;
        }

        .nav-expandable.expanded::after {
            transform: translateY(-50%) rotate(180deg);
        }

        .nav-sub-items {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease;
            background: rgba(0, 0, 0, 0.15);
        }

        .nav-sub-items.expanded {
            max-height: 500px;
        }

        .section-content {
            max-height: 500px;
            overflow: hidden;
            transition: max-height 0.25s ease;
        }

        .section-content.collapsed {
            max-height: 0;
        }

        .nav-prompt-item {
            padding: 0.3rem 1.5rem 0.3rem 3.2rem;
            font-size: 0.7rem;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.2;
            border-radius: 0;
            margin-right: 0;
            display: block;
            text-decoration: none;
            transition: all 0.15s ease;
        }

        .nav-prompt-item:hover {
            color: rgba(255, 255, 255, 0.8);
            background: rgba(255, 255, 255, 0.03);
        }

        .main-content {
            flex: 1;
            margin-left: 320px;
            min-height: 100vh;
            background: #ffffff;
        }

        .content {
            max-width: 950px;
            margin: 0 auto;
            padding: 0.5rem 3rem 3rem;
            background: #ffffff;
            min-height: 100vh;
        }

        .mobile-header {
            display: none;
            background: var(--bg-primary);
            border-bottom: 1px solid var(--border-color);
            padding: 1rem;
            position: sticky;
            top: 0;
            z-index: 999;
            box-shadow: var(--shadow-sm);
        }



        .mobile-toggle {
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-primary);
            padding: 0.5rem;
            border-radius: 0.375rem;
            transition: background 0.2s;
        }

        .mobile-toggle:hover {
            background: var(--bg-tertiary);
        }

        h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            line-height: 1.1;
            letter-spacing: -0.025em;
        }

        h2 {
            font-size: 2.25rem;
            font-weight: 700;
            color: #1a365d;
            margin: 4rem 0 3rem;
            line-height: 1.2;
            letter-spacing: -0.02em;
            position: relative;
            padding-bottom: 2rem;
            text-align: center;
        }

        h2::before {
            content: '';
            position: absolute;
            top: -1rem;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, #1a365d, #2c5282);
            border-radius: 2px;
        }

        h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 120px;
            height: 2px;
            background: linear-gradient(90deg, #2c5282, #1a365d);
            border-radius: 2px;
        }

        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--primary-color);
            margin: 2rem 0 1.5rem;
            line-height: 1.3;
        }

        h4 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 1.5rem 0 1rem;
            line-height: 1.4;
        }

        p {
            margin-bottom: 1.25rem;
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.7;
        }

        .intro-section {
            padding: 0.2rem 0 0.2rem 0 !important;
            margin-bottom: 0.2rem !important;
        }

        .intro-header {
            margin-bottom: 2rem;
            padding: 2rem 0 1rem 0;
            text-align: center;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
        }

        .intro-content {
            margin-bottom: 0;
        }

        .title-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.8rem;
            margin-bottom: 1rem;
        }

        .intro-header h1 {
            font-size: 2.8rem;
            color: #1e293b;
            margin: 0;
            font-weight: 800;
            line-height: 1.1;
            letter-spacing: -0.02em;
        }

        .subtitle {
            font-size: 1.125rem;
            color: #475569;
            margin-bottom: 1.5rem;
            font-weight: 500;
            line-height: 1.4;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .intro-badge {
            display: inline-block;
            padding: 0.2rem 0.5rem;
            background: #1e3a8a;
            color: white;
            border-radius: 4px;
            font-weight: 600;
            font-size: 0.6rem;
            letter-spacing: 0.02em;
            text-transform: uppercase;
            border: 1px solid #1e3a8a;
        }

        .key-features {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin: 0.3rem 0 0.3rem 0 !important;
        }

        .feature {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .feature-number {
            font-size: 2rem;
            font-weight: 700;
            color: #2c5282;
            margin-bottom: 0.5rem;
        }

        .feature-label {
            color: #4a5568;
            font-size: 1rem;
        }

        .quick-start {
            text-align: center;
            padding: 2rem 0;
        }

        .steps {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 20px;
            margin: 2rem auto;
            max-width: 1200px;
            flex-wrap: wrap;
        }

        .step {
            background: #1a1a1a;
            color: #fff;
            padding: 12px 24px;
            border-radius: 100px;
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }

        .step-number {
            background: #4169e1;
            color: white;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 500;
        }

        .step-text {
            font-size: 14px;
            color: #fff;
            white-space: nowrap;
        }

        @media (max-width: 768px) {
            .steps {
                flex-direction: column;
                padding: 0 20px;
            }

            /* 紧凑型作者信息响应式样式 */
            .author-info-compact {
                margin: 1rem 0;
                padding: 0.8rem 0;
            }

            .author-info-content {
                flex-direction: column;
                gap: 0.8rem;
                max-width: 100%;
            }

            .author-item {
                justify-content: center;
            }

            .author-divider {
                display: none;
            }

            .author-label,
            .author-name,
            .author-contact {
                font-size: 0.9rem;
            }

            .author-service {
                font-size: 0.85rem;
            }

            /* 专业版角标响应式样式 */
            .title-row {
                flex-direction: column;
                gap: 0.5rem;
            }
            
            .intro-badge {
                font-size: 0.55rem;
                padding: 0.15rem 0.4rem;
            }
        }

        .author-info {
            background: #1a1a1a;
            padding: 1.6rem 2rem;
            border-radius: 8px;
            margin: 2.5rem auto;
            max-width: 800px;
            text-align: center;
            position: relative;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }

        /* 紧凑型作者信息样式 */
        .author-info-compact {
            width: 100%;
            text-align: center;
            margin: 0.5rem 0;
            padding: 0.5rem 0;
        }

        .author-info-content {
            display: flex;
            justify-content: center;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        .author-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .author-label {
            color: #8d7b4a;
            font-weight: 600;
            font-size: 0.95rem;
        }

        .author-name {
            font-weight: 600;
            color: #2d3748;
            font-size: 0.95rem;
        }

        .author-contact {
            font-weight: 700;
            color: #2d3748;
            font-size: 0.95rem;
            letter-spacing: 0.01em;
        }

        .author-service {
            color: #718096;
            font-size: 0.9rem;
            font-weight: 400;
        }

        .author-divider {
            width: 1px;
            height: 20px;
            background: #e2e8f0;
            margin: 0 0.5rem;
        }

        .author-content {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1.8rem;
            flex-wrap: wrap;
            color: #c9a96e;
        }

        .author-text strong,
        .contact strong,
        .author-text,
        .contact,
        .service {
            color: #c9a96e;
        }

        .divider {
            color: rgba(201, 169, 110, 0.3);
        }

        .author-badge {
            color: #c9a96e;
            font-size: 1.2rem;
            margin-right: 0.2rem;
        }

        .author-text,
        .contact,
        .service {
            color: rgba(255, 255, 255, 0.95);
            font-size: 0.95rem;
            letter-spacing: 0.01em;
        }

        .author-text strong,
        .contact strong {
            color: #c9a96e;
            font-weight: 500;
            margin-right: 0.2rem;
        }

        .divider {
            color: rgba(255, 255, 255, 0.12);
            margin: 0 0.3rem;
        }

        .service {
            color: rgba(255, 255, 255, 0.95);
            font-weight: 400;
        }

        @media (max-width: 768px) {
            .author-info {
                padding: 1.2rem;
                margin: 1.5rem 1rem;
                background: linear-gradient(135deg, #2c3338 0%, #1f2937 100%);
            }

            .author-content {
                flex-direction: column;
                gap: 0.8rem;
            }

            .divider {
                display: none;
            }
        }

        .value-proposition {
            margin: 4rem 0;
            position: relative;
            z-index: 2;
        }

        .value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .value-item {
            text-align: center;
            padding: 2rem 1rem;
            background: #ffffff;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(0, 0, 0, 0.04);
            border-radius: 1.5rem;
            transition: all 0.3s ease;
            box-shadow: 
                0 1px 3px rgba(0, 0, 0, 0.02),
                0 4px 12px rgba(0, 0, 0, 0.02);
        }

        .value-item:hover {
            transform: translateY(-4px);
            box-shadow: 
                0 4px 12px rgba(0, 0, 0, 0.06),
                0 12px 32px rgba(0, 0, 0, 0.06);
        }

        .value-number {
            font-size: 3.5rem;
            font-weight: 600;
            color: #1a1a1a;
            line-height: 1;
            margin-bottom: 0.5rem;
        }

        .value-text {
            font-size: 0.9rem;
            color: #4a5568;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .usage-guide {
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 1.5rem;
            padding: 2.5rem;
            text-align: center;
        }
        .usage-guide h3 {
            color: #1a1a1a;
            margin: 0 0 2rem 0;
            font-size: 1.5rem;
            font-weight: 700;
        }

        .steps {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .step {
            background: #1a1a1a;
            color: white;
            padding: 0.75rem 1.5rem;
            border-radius: 2rem;
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
        }

        .arrow {
            color: #c9a96e;
            font-size: 1.25rem;
            font-weight: bold;
        }



        .author-info {
            background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
            color: white;
            padding: 2rem 3rem;
            border-radius: 1.5rem;
            margin-top: 3rem;
            text-align: center;
            box-shadow:
                0 20px 40px rgba(0, 0, 0, 0.15),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .author-info::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(201, 169, 110, 0.8), transparent);
        }

        .author-info p {
            color: rgba(255, 255, 255, 0.9);
            margin: 0;
            font-size: 1rem;
            font-weight: 500;
            position: relative;
            z-index: 1;
            letter-spacing: 0.01em;
        }

        .content-section {
            margin: 5rem 0;
        }

        .method-card {
            background: white;
            border: 1px solid rgba(0, 0, 0, 0.06);
            border-radius: 1.5rem;
            padding: 3rem;
            margin: 2.5rem 0;
            box-shadow: 
                0 1px 3px rgba(0, 0, 0, 0.02),
                0 4px 12px rgba(0, 0, 0, 0.04),
                0 12px 32px rgba(0, 0, 0, 0.02);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .method-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #c9a96e, #3b82f6, #8b5cf6);
            transform: translateX(-100%);
            transition: transform 0.4s ease;
        }

        .method-card:hover {
            box-shadow: 
                0 4px 12px rgba(0, 0, 0, 0.06),
                0 12px 32px rgba(0, 0, 0, 0.08),
                0 24px 48px rgba(0, 0, 0, 0.04);
            transform: translateY(-6px);
            border-color: rgba(59, 130, 246, 0.2);
        }

        .method-card:hover::before {
            transform: translateX(0);
        }

        .method-card h3 {
            color: var(--primary-color);
            margin-top: 0;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: -0.01em;
        }

        .method-number {
            background: linear-gradient(135deg, #3b82f6, #1d4ed8);
            color: white;
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.25rem;
            box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
            flex-shrink: 0;
        }

        .example-box {
            /* 极简化：纯白背景、轻微边框、适度内边距 */
            background: #ffffff;
            border: 1px solid rgba(15, 23, 42, 0.06);
            border-radius: 1rem;
            padding: 1.75rem;
            margin: 1.5rem 0;
            position: relative;
            overflow: hidden;
        }

        /* 去掉左侧彩色竖线装饰，保持干净简洁 */
        .example-box::before {
            display: none;
        }

        .example-box h4 {
            color: var(--primary-color);
            margin-top: 0;
            margin-bottom: 1rem;
            /* 略微减小标题字号与间距，使文本更紧凑、阅读更流畅 */
            font-size: 1.05rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: -0.01em;
        }

        /* 取消 emoji 前缀，保持标题纯文本风格 */
        .example-box h4::before {
            content: none;
        }

        .example-box p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 1rem;
        }

        .example-box p:last-child {
            margin-bottom: 0;
        }

        .prompt-section {
            margin: 5rem 0;
        }

        .prompt-category {
            margin: 4rem 0;
            background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
            border-radius: 2rem;
            padding: 3rem;
            border: 1px solid rgba(0, 0, 0, 0.04);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
            position: relative;
            overflow: hidden;
        }

        .prompt-category::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #c9a96e, #3b82f6, #8b5cf6);
        }

        .prompt-category h3 {
            color: #1a1a1a;
            padding: 0 0 1rem;
            margin-bottom: 2rem;
            position: relative;
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .prompt-category h3::before {
            content: attr(data-number);
            background: linear-gradient(135deg, #3b82f6, #1d4ed8);
            color: white;
            width: 3rem;
            height: 3rem;
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.125rem;
            box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
            flex-shrink: 0;
        }

        .prompt-category h3::after {
            content: '';
            position: absolute;
            left: 4rem;
            bottom: 0;
            width: 120px;
            height: 3px;
            background: linear-gradient(90deg, #c9a96e, #3b82f6);
            border-radius: 2px;
        }

        .workflow-guide {
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(139, 92, 246, 0.08));
            border: 1px solid rgba(59, 130, 246, 0.15);
            border-radius: 1.25rem;
            padding: 2rem 2rem 2rem 3rem;
            margin-bottom: 2.5rem;
            font-size: 0.95rem;
            line-height: 1.8;
            color: #374151;
            position: relative;
            backdrop-filter: blur(10px);
        }

        @media (max-width: 768px) {
            .workflow-guide {
                border-radius: 0.75rem;
                line-height: 1.4;
                padding: 0.75rem;
            }

            .guide-item {
                margin-bottom: 0.375rem;
            }

            .guide-item:last-child {
                margin-bottom: 0;
            }
        }

        .workflow-guide::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 1rem;
            transform: translateY(-50%);
            font-size: 1.25rem;
        }

        .guide-item {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            margin-bottom: 1rem;
        }

        .guide-item:last-child {
            margin-bottom: 0;
        }

        .guide-icon {
            font-size: 1.125rem;
            flex-shrink: 0;
            margin-top: 0.125rem;
        }

        .guide-label {
            font-weight: 700;
            color: #1f2937;
            min-width: 5rem;
            flex-shrink: 0;
        }

        .guide-text {
            color: #4b5563;
            line-height: 1.6;
        }

        .prompt-item {
            margin: 1.5rem 0;
            background: white;
            border: 1px solid rgba(0, 0, 0, 0.04);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 
                0 1px 3px rgba(0, 0, 0, 0.02),
                0 4px 12px rgba(0, 0, 0, 0.03);
            transition: all 0.3s ease;
            position: relative;
        }

        .prompt-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, #c9a96e, #3b82f6, #8b5cf6);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }

        .prompt-item:hover {
            box-shadow: 
                0 4px 12px rgba(0, 0, 0, 0.06),
                0 12px 32px rgba(0, 0, 0, 0.05);
            transform: translateY(-3px);
            border-color: rgba(59, 130, 246, 0.15);
        }

        .prompt-item:hover::before {
            transform: scaleX(1);
        }

        .prompt-header {
            background: linear-gradient(180deg, #fafbfc 0%, #f8fafc 100%);
            padding: 1.5rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
            position: relative;
        }

        .prompt-header h4 {
            color: #1f2937;
            margin: 0;
            font-size: 1.125rem;
            font-weight: 600;
            flex: 1;
            letter-spacing: -0.01em;
        }

        .copy-btn {
            background: #ffffff;
            border: 1px solid rgba(0, 0, 0, 0.08);
            color: #374151;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            cursor: pointer;
            font-size: 0.875rem;
            font-weight: 500;
            font-family: inherit;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            min-width: 80px;
            justify-content: center;
            height: 36px;
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
        }

        .copy-btn:hover {
            background: #f9fafb;
            border-color: rgba(59, 130, 246, 0.3);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
        }

        .copy-btn::before {
            content: '';
            width: 14px;
            height: 14px;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23374151'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z'%3E%3C/path%3E%3C/svg%3E");
            background-size: contain;
            background-repeat: no-repeat;
            flex-shrink: 0;
        }

        .copy-btn.copied {
            background: #f0fdf4;
            border-color: #22c55e;
            color: #16a34a;
        }

        .copy-btn.copied::before {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2316a34a'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M5 13l4 4L19 7'%3E%3C/path%3E%3C/svg%3E");
        }

        .copy-btn:hover {
            background: #f9fafb;
            border-color: #9ca3af;
            transform: translateY(-1px);
        }

        .prompt-code {
            background: #f8fafc;
            color: #374151;
            padding: 1.25rem 1.5rem;
            font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', monospace;
            font-size: 0.95rem;
            line-height: 1.7;
            overflow-x: auto;
            white-space: pre-line !important;
            text-align: left !important;
            text-indent: 0 !important;
            margin: 0;
            position: relative;
            border: none;
        }

        .prompt-code::-webkit-scrollbar {
            height: 6px;
        }

        .prompt-code::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.1);
        }

        .prompt-code::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.3);
            border-radius: 3px;
        }

        .tool-section {
            margin: 4rem 0;
        }

        .tool-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
            margin: 2rem 0;
        }

        .tool-card {
            background: var(--bg-primary);
            border: 1px solid rgba(0, 0, 0, 0.04);
            border-radius: 1.25rem;
            padding: 2rem;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 
                0 1px 3px rgba(0, 0, 0, 0.02),
                0 4px 12px rgba(0, 0, 0, 0.03);
            position: relative;
            overflow: hidden;
        }

        .tool-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, #c9a96e, #3b82f6);
            opacity: 0.8;
        }

        .tool-card:hover {
            box-shadow: 
                0 4px 12px rgba(0, 0, 0, 0.06),
                0 12px 32px rgba(0, 0, 0, 0.05);
            transform: translateY(-4px);
            border-color: rgba(59, 130, 246, 0.15);
        }

        .tool-card h4 {
            color: var(--primary-color);
            margin-top: 0;
            margin-bottom: 1rem;
            font-size: 1.25rem;
        }

        .tool-link {
            color: var(--accent-color);
            text-decoration: none;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: color 0.2s;
        }

        .tool-link:hover {
            color: var(--secondary-color);
        }

        .tool-link::after {
            content: '→';
            transition: transform 0.2s;
        }

        .tool-link:hover::after {
            transform: translateX(2px);
        }

        /* -------- Common Tools (法律人常用AI工具) UI overrides -------- */
        #common-tools h3 {
            font-size: 1.75rem;
            letter-spacing: 0.2px;
            margin-bottom: 1.25rem;
        }

        #common-tools h4 {
            margin-top: 1.25rem;
            margin-bottom: 0.5rem;
            font-size: 1.1rem;
            color: var(--text-secondary);
            font-weight: 600;
        }

        #common-tools .tool-grid {
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1rem;
            margin-top: 0.5rem;
        }

        #common-tools .tool-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 1rem 1rem;
            box-shadow: none;
            transform: none;
        }

        #common-tools .tool-card::before {
            display: none;
        }

        #common-tools .tool-card:hover {
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
            transform: translateY(-2px);
            border-color: var(--border-color);
            background: var(--bg-primary);
        }

        #common-tools .tool-card h4 {
            color: var(--text-primary);
            font-size: 1rem;
            margin-bottom: 0.5rem;
        }

        #common-tools .tool-card p {
            margin: 0 0 0.5rem 0;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ---- Tab 切换（纯 CSS，radio + label + :checked） ---- */
        .tt-input {
            position: absolute;
            opacity: 0;
            pointer-events: none;
        }

        .tt-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1.25rem;
        }

        .tt-label {
            display: inline-block;
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            line-height: 1.4;
            color: var(--text-secondary);
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            cursor: pointer;
            user-select: none;
            transition: all 0.2s ease;
        }

        .tt-label:hover {
            border-color: var(--primary-color);
            color: var(--primary-color);
        }

        .tt-panel {
            display: none;
        }

        /* 工具区 Tab 联动 */
        #tab-legal:checked ~ .tt-panel#panel-legal,
        #tab-gen:checked ~ .tt-panel#panel-gen,
        #tab-voice:checked ~ .tt-panel#panel-voice,
        #tab-case:checked ~ .tt-panel#panel-case,
        #tab-contract:checked ~ .tt-panel#panel-contract,
        #tab-kb:checked ~ .tt-panel#panel-kb,
        #tab-ppt:checked ~ .tt-panel#panel-ppt,
        #tab-dev:checked ~ .tt-panel#panel-dev {
            display: block;
        }

        #tab-legal:checked ~ .tt-bar label[for="tab-legal"],
        #tab-gen:checked ~ .tt-bar label[for="tab-gen"],
        #tab-voice:checked ~ .tt-bar label[for="tab-voice"],
        #tab-case:checked ~ .tt-bar label[for="tab-case"],
        #tab-contract:checked ~ .tt-bar label[for="tab-contract"],
        #tab-kb:checked ~ .tt-bar label[for="tab-kb"],
        #tab-ppt:checked ~ .tt-bar label[for="tab-ppt"],
        #tab-dev:checked ~ .tt-bar label[for="tab-dev"] {
            background: var(--primary-color);
            color: #fff;
            border-color: var(--primary-color);
        }

        /* 网站区 Tab 联动 */
        #stab-1:checked ~ .tt-panel#spanel-1,
        #stab-2:checked ~ .tt-panel#spanel-2,
        #stab-3:checked ~ .tt-panel#spanel-3,
        #stab-4:checked ~ .tt-panel#spanel-4,
        #stab-5:checked ~ .tt-panel#spanel-5,
        #stab-6:checked ~ .tt-panel#spanel-6,
        #stab-7:checked ~ .tt-panel#spanel-7,
        #stab-8:checked ~ .tt-panel#spanel-8 {
            display: block;
        }

        #stab-1:checked ~ .tt-bar label[for="stab-1"],
        #stab-2:checked ~ .tt-bar label[for="stab-2"],
        #stab-3:checked ~ .tt-bar label[for="stab-3"],
        #stab-4:checked ~ .tt-bar label[for="stab-4"],
        #stab-5:checked ~ .tt-bar label[for="stab-5"],
        #stab-6:checked ~ .tt-bar label[for="stab-6"],
        #stab-7:checked ~ .tt-bar label[for="stab-7"],
        #stab-8:checked ~ .tt-bar label[for="stab-8"] {
            background: var(--primary-color);
            color: #fff;
            border-color: var(--primary-color);
        }

        /* 将“访问工具”改为整卡可点击的透明覆盖层（仅影响本区块） */
        #common-tools .tool-card { cursor: pointer; }
        #common-tools .tool-link {
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            left: 0;
            display: block;
            padding: 0;
            border: none;
            border-radius: 12px;
            background: transparent;
            color: transparent; /* 防止聚焦时文字露出 */
            text-indent: -9999px; /* 隐藏“访问工具”文字 */
            outline: none;
            -webkit-tap-highlight-color: transparent;
            box-shadow: none;
            appearance: none;
        }
        #common-tools .tool-link:focus-visible {
            outline: 2px solid var(--secondary-color);
            outline-offset: 2px;
        }
        #common-tools .tool-link::after { content: none; }

        @media (max-width: 768px) {
            #common-tools .tool-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            #common-tools h3 {
                font-size: 1.5rem;
            }

            #common-tools .tt-label {
                font-size: 0.85rem;
                padding: 0.45rem 0.85rem;
            }
        }

        .report-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 1rem;
            padding: 1.5rem;
            margin: 2rem 0;
            display: flex;
            align-items: center;
            gap: 1rem;
            transition: all 0.2s ease;
        }

        .report-card:hover {
            border-color: var(--primary-color);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.1);
        }

        .report-icon {
            font-size: 2rem;
            flex-shrink: 0;
        }

        .report-content {
            flex: 1;
            min-width: 0;
        }

        .report-content h4 {
            color: var(--text-primary);
            margin: 0 0 0.5rem 0;
            font-size: 1.1rem;
            font-weight: 600;
            line-height: 1.3;
        }

        .report-meta {
            display: flex;
            gap: 0.5rem;
        }

        .report-type,
        .report-year {
            background: var(--bg-primary);
            color: var(--text-secondary);
            padding: 0.25rem 0.5rem;
            border-radius: 0.375rem;
            font-size: 0.75rem;
            font-weight: 500;
            border: 1px solid var(--border-light);
        }

        .report-download {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary-color);
            color: white;
            border-radius: 0.5rem;
            text-decoration: none;
            transition: all 0.2s ease;
            flex-shrink: 0;
        }

        .report-download:hover {
            background: #1d4ed8;
            transform: scale(1.05);
        }

        .info-box {
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(30, 58, 138, 0.05));
            border: 1px solid rgba(59, 130, 246, 0.2);
            border-radius: 1rem;
            padding: 2.5rem;
            margin: 2rem 0;
        }

        .contact-section {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 1rem;
            padding: 3rem;
            margin: 4rem 0;
            text-align: center;
        }

        .contact-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2rem;
        }

        .contact-text {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.6;
            margin: 0;
            max-width: 600px;
        }

        .contact-info h3 {
            color: var(--text-primary);
            margin-top: 0;
            margin-bottom: 0.5rem;
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
        }

        .contact-subtitle {
            color: var(--text-secondary);
            font-size: 1.1rem;
            margin-bottom: 3rem;
            line-height: 1.6;
        }



        .qr-code-container {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .qr-code-wrapper {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 0.75rem;
            padding: 1.5rem;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }
        .qr-code {
            width: 200px;
            height: 200px;
            border-radius: 0.5rem;
        }

        /* Apple-style feedback section */
        .feedback-card {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border-radius: 1.5rem;
        }

        .feedback-card:hover {
            transform: translateY(-8px);
        }

        .feedback-card-inner {
            width: 280px;
            height: 280px;
            background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
            border: 1px solid rgba(0, 0, 0, 0.05);
            border-radius: 1.5rem;
            padding: 2.5rem;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 1.5rem;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
        }

        .feedback-icon-wrapper {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 16px rgba(201, 169, 110, 0.3);
        }

        .feedback-icon {
            font-size: 2.2rem;
            filter: brightness(0) invert(1);
        }

        .feedback-content {
            text-align: center;
        }

        .feedback-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 0.5rem 0;
            letter-spacing: -0.01em;
            line-height: 1.2;
        }

        .feedback-subtitle {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.5;
            font-weight: 400;
        }

        .qr-section {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .qr-card {
            width: 280px;
            height: 320px;
            background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
            border: 1px solid rgba(0, 0, 0, 0.05);
            border-radius: 1.5rem;
            padding: 2rem;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1.5rem;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
        }

        .qr-image-wrapper {
            width: 160px;
            height: 160px;
            background: white;
            border-radius: 1rem;
            padding: 1rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            border: 1px solid rgba(0, 0, 0, 0.03);
        }

        .qr-code-enhanced {
            width: 140px;
            height: 140px;
            border-radius: 0.75rem;
            object-fit: contain;
        }

        .qr-content {
            text-align: center;
        }

        .qr-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 0.25rem 0;
            letter-spacing: -0.01em;
            line-height: 1.2;
        }

        .qr-subtitle {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin: 0;
            font-weight: 400;
            opacity: 0.8;
            display: block;
        }
        .copy-success {
            position: fixed;
            top: 2rem;
            right: 2rem;
            background: linear-gradient(135deg, #22c55e, #16a34a);
            color: white;
            padding: 1rem 1.5rem;
            border-radius: 1rem;
            z-index: 9999;
            opacity: 0;
            transform: translateX(100px);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            font-weight: 600;
            box-shadow: 0 8px 24px rgba(34, 197, 94, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(10px);
        }

        .copy-success.show {
            opacity: 1;
            transform: translateX(0);
        }

        /* 密码保护样式 */
        .protected-content {
            display: none;
        }

        .auth-overlay {
            background: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
            border: 1px solid rgba(26, 26, 26, 0.08);
            border-radius: 2rem;
            padding: 4rem 3rem;
            margin: 4rem 0;
            text-align: center;
            position: relative;
            box-shadow:
                0 20px 40px rgba(0, 0, 0, 0.06),
                inset 0 1px 0 rgba(255, 255, 255, 0.5);
        }

        .auth-overlay::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(201, 169, 110, 0.5), transparent);
        }

        .auth-title {
            color: #1a1a1a;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            letter-spacing: -0.02em;
        }

        .auth-description {
            color: #4a5568;
            font-size: 1.125rem;
            line-height: 1.6;
            margin-bottom: 2.5rem;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .auth-button {
            background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
            color: white;
            border: none;
            padding: 1rem 2.5rem;
            border-radius: 1rem;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 8px 24px rgba(26, 26, 26, 0.2);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .auth-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(26, 26, 26, 0.3);
        }

        .scroll-indicator {
            position: fixed;
            top: 0;
            left: 320px;
            right: 0;
            height: 2px;
            background: rgba(201, 169, 110, 0.1);
            z-index: 999;
        }

        .scroll-progress {
            height: 100%;
            background: var(--accent-color);
            width: 0%;
            transition: width 0.1s;
        }

        @media (max-width: 1200px) {
            .content {
                max-width: 800px;
                padding: 2.5rem 2rem;
            }

            .intro-section {
                padding: 4rem 3rem;
            }
        }

        @media (max-width: 1024px) {
            .sidebar {
                width: 300px;
            }

            .main-content {
                margin-left: 300px;
            }

            .scroll-indicator {
                left: 300px;
            }

            .content {
                padding: 2rem 1.5rem;
            }

            .intro-section {
                padding: 3rem 2rem;
            }
        }

        @media (max-width: 900px) {
            /* Use left positioning instead of transform for the off-canvas sidebar to avoid rasterizing text */
            .sidebar {
                left: -100%;
                transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
                width: 280px;
                box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
            }

            .sidebar.open {
                left: 0;
            }

            .main-content {
                margin-left: 0;
            }

            .mobile-header {
                display: flex;
            }

            .scroll-indicator {
                left: 0;
            }
        }

        @media (max-width: 768px) {
            /* Same left-based off-canvas for smaller screens */
            .sidebar {
                left: -100%;
                transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
                width: 85vw;
                max-width: 320px;
                box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
                z-index: 9999;
            }

            .sidebar.open {
                left: 0;
            }

            .main-content {
                margin-left: 0;
            }

            .mobile-header {
                display: flex;
                justify-content: space-between;
                align-items: center;
                background: white;
                border-bottom: 1px solid rgba(0, 0, 0, 0.06);
                box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
                padding: 0 1rem;
                height: 44px;
                min-height: 44px;
                position: sticky;
                top: 0;
                z-index: 998;
            }



            .nav-sub-items.expanded {
                max-height: 800px;
            }

            .guide-item {
                flex-direction: row;
                align-items: center;
                gap: 0.5rem;
                margin-bottom: 0.375rem;
            }

            .guide-label {
                min-width: 4rem;
                font-size: 0.75rem;
                font-weight: 600;
                flex-shrink: 0;
            }

            .guide-text {
                font-size: 0.75rem;
                line-height: 1.3;
            }

            .mobile-toggle {
                background: #f8fafc;
                border: 1px solid rgba(0, 0, 0, 0.06);
                border-radius: 0.375rem;
                padding: 0.5rem;
                font-size: 1.125rem;
            }

            .mobile-toggle:hover {
                background: #f1f5f9;
            }

            .content {
                padding: 1rem 1.25rem;
            }

            .intro-section {
                padding: 1.5rem 1.25rem;
                margin-bottom: 1.5rem;
                border-radius: 1rem;
            }

            .intro-section h1 {
                font-size: 2.2rem;
                margin-bottom: 0.8rem;
            }

            .intro-section .subtitle {
                font-size: 1rem;
                margin-bottom: 1.5rem;
            }

            .key-features {
                gap: 1.5rem;
                margin: 1.5rem 0;
            }

            .feature-number {
                font-size: 1.5rem;
            }

            .feature-label {
                font-size: 0.875rem;
            }

            .quick-feature-row {
                flex-direction: column !important;
                gap: 0.75rem !important;
                margin: 1rem 0 !important;
                padding: 0 0.75rem !important;
            }

            .quick-feature-card {
                padding: 1rem !important;
                min-width: auto !important;
                max-width: 100% !important;
            }

            .card-header {
                margin-bottom: 0.75rem;
                padding-bottom: 0.5rem;
            }

            .card-icon {
                width: 28px;
                height: 28px;
            }

            .card-title {
                font-size: 1rem;
            }

            .card-flow {
                font-size: 0.9rem;
            }

            .platform-label,
            .platform-tag-mini {
                font-size: 0.8rem;
            }

            .card-hint,
            .content-list li {
                font-size: 0.85rem;
            }

            .author-info {
                padding: 1.5rem;
                margin-top: 2rem;
            }

            .author-content {
                flex-direction: column;
                gap: 0.75rem;
            }

            .divider {
                display: none;
            }

            .method-card {
                padding: 1.25rem 1rem;
                margin: 1rem 0;
                border-radius: 0.875rem;
            }

            .method-card h3 {
                font-size: 1.125rem;
                flex-direction: column;
                text-align: center;
                gap: 0.5rem;
            }

            .method-number {
                width: 2.25rem;
                height: 2.25rem;
                font-size: 0.875rem;
            }

            .method-content {
                gap: 1rem;
            }

            .usage-example {
                padding: 1rem;
            }

            .usage-example h4 {
                font-size: 0.875rem;
                margin-bottom: 0.75rem;
            }

            .usage-example p {
                font-size: 0.8rem;
                margin-bottom: 0.5rem;
            }

            .prompt-category {
                padding: 1.25rem 1.25rem;
                margin: 1.5rem 0;
                border-radius: 1rem;
            }

            .prompt-category h3 {
                font-size: 1.25rem;
                flex-direction: column;
                text-align: center;
                gap: 0.75rem;
                margin-bottom: 1.5rem;
            }

            .prompt-category h3::before {
                width: 2rem;
                height: 2rem;
                font-size: 0.875rem;
                align-self: center;
            }

            .prompt-category h3::after {
                left: 50%;
                transform: translateX(-50%);
                width: 60px;
            }

            .workflow-guide {
                padding: 0.75rem;
                font-size: 0.75rem;
                margin-bottom: 1rem;
            }

            .prompt-item {
                margin: 1rem 0;
                border-radius: 0.875rem;
            }

            .prompt-header {
                padding: 1rem 0.875rem;
                flex-direction: column;
                align-items: flex-start;
                gap: 0.75rem;
            }

            .prompt-header::before {
                display: none;
            }

            .prompt-header h4 {
                font-size: 1rem;
                padding-left: 0;
                text-align: center;
                align-self: stretch;
                margin: 0;
            }

            .copy-btn {
                align-self: stretch;
                justify-content: center;
                padding: 0.75rem;
                font-size: 0.8rem;
            }

            .prompt-code {
                padding: 1.25rem;
                font-size: 0.8rem;
                line-height: 1.5;
            }

            .auth-overlay {
                padding: 1.5rem 1rem;
                margin: 1.5rem 0;
                border-radius: 1rem;
            }

            .auth-title {
                font-size: 1.375rem;
            }

            .auth-description {
                font-size: 0.9rem;
                margin-bottom: 2rem;
            }

            .auth-button {
                padding: 0.75rem 1.5rem;
                font-size: 0.875rem;
            }

            .contact-section {
                padding: 1.5rem 1rem;
                margin: 2rem 0;
                border-radius: 1rem;
            }

            .contact-container {
                gap: 1.25rem;
            }

            .contact-text {
                font-size: 0.875rem;
            }

            .qr-code-wrapper {
                padding: 0.75rem;
            }

            .qr-code {
                width: 140px;
                height: 140px;
            }

            /* Apple-style feedback cards mobile */
            .feedback-card-inner {
                width: 240px;
                height: 240px;
                padding: 2rem;
                gap: 1.25rem;
            }

            .feedback-icon-wrapper {
                width: 70px;
                height: 70px;
            }

            .feedback-icon {
                font-size: 2rem;
            }

            .feedback-title {
                font-size: 1.15rem;
            }

            .feedback-subtitle {
                font-size: 0.9rem;
            }

            .qr-card {
                width: 240px;
                height: 280px;
                padding: 1.75rem;
            }

            .qr-image-wrapper {
                width: 140px;
                height: 140px;
                padding: 0.875rem;
            }

            .qr-code-enhanced {
                width: 120px;
                height: 120px;
            }

            h1 {
                font-size: 2rem;
            }

            h2 {
                font-size: 1.75rem;
                margin: 2.5rem 0 1.5rem;
                padding-bottom: 1.5rem;
            }

            h3 {
                font-size: 1.25rem;
                margin: 1.5rem 0 1rem;
            }

            .tool-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .tool-card {
                padding: 1.25rem;
            }

            .report-card {
                padding: 1rem;
                flex-direction: column;
                text-align: center;
                gap: 0.75rem;
            }

            .report-icon {
                font-size: 1.5rem;
            }

            .report-content h4 {
                font-size: 0.9rem;
            }

            .report-download {
                width: 32px;
                height: 32px;
                align-self: center;
            }

            .scroll-indicator {
                left: 0;
            }

            .copy-success {
                top: 1rem;
                right: 1rem;
                padding: 0.625rem 0.875rem;
                font-size: 0.8rem;
            }
        }
        @media (max-width: 480px) {
            .content {
                padding: 1rem 1rem;
            }

            .intro-section {
                padding: 1.25rem 1rem;
                margin-bottom: 1.25rem;
            }

            .intro-section h1 {
                font-size: 1.8rem;
                line-height: 1.1;
            }

            .intro-section .subtitle {
                font-size: 0.95rem;
                margin-bottom: 1.25rem;
            }

            .key-features {
                gap: 1.25rem;
                margin: 1.25rem 0;
            }

            .feature-number {
                font-size: 1.375rem;
            }

            .feature-label {
                font-size: 0.8rem;
            }

            .quick-feature-row {
                gap: 0.5rem !important;
            }

            .quick-feature-card {
                padding: 0.875rem !important;
            }

            .card-title {
                font-size: 0.95rem;
            }

            .card-flow {
                font-size: 0.85rem;
            }

            .card-hint,
            .content-list li {
                font-size: 0.8rem;
            }

            .author-info {
                padding: 1.25rem;
                margin-top: 1.5rem;
            }

            .method-card {
                padding: 1rem 0.75rem;
                margin: 0.875rem 0;
            }

            .method-card h3 {
                font-size: 1rem;
            }

            .method-number {
                width: 2rem;
                height: 2rem;
                font-size: 0.8rem;
            }

            .usage-example {
                padding: 0.875rem;
            }

            .usage-example h4 {
                font-size: 0.8rem;
                margin-bottom: 0.5rem;
            }

            .usage-example p {
                font-size: 0.75rem;
                margin-bottom: 0.375rem;
            }

            .prompt-category {
                padding: 1rem 1rem;
                margin: 1.25rem 0;
            }

            .prompt-category h3 {
                font-size: 1.125rem;
                margin-bottom: 1.25rem;
            }

            .prompt-category h3::before {
                width: 1.75rem;
                height: 1.75rem;
                font-size: 0.8rem;
            }

            .workflow-guide {
                padding: 0.625rem;
                font-size: 0.7rem;
                margin-bottom: 0.875rem;
            }

            .prompt-item {
                margin: 0.875rem 0;
            }

            .prompt-header {
                padding: 0.875rem 0.75rem;
                gap: 0.625rem;
            }

            .prompt-header h4 {
                font-size: 0.9rem;
            }

            .copy-btn {
                padding: 0.625rem;
                font-size: 0.75rem;
            }

            .prompt-code {
                padding: 1rem;
                font-size: 0.75rem;
                line-height: 1.4;
            }

            .auth-overlay {
                padding: 1.25rem 0.75rem;
                margin: 1.25rem 0;
            }

            .auth-title {
                font-size: 1.25rem;
            }

            .auth-description {
                font-size: 0.85rem;
                margin-bottom: 1.75rem;
            }

            .auth-button {
                padding: 0.625rem 1.25rem;
                font-size: 0.8rem;
            }

            .contact-section {
                padding: 1.25rem 0.75rem;
                margin: 1.5rem 0;
            }

            .qr-code {
                width: 120px;
                height: 120px;
            }

            /* Apple-style feedback cards small screens */
            .feedback-card-inner {
                width: 200px;
                height: 200px;
                padding: 1.5rem;
            }

            .feedback-icon-wrapper {
                width: 60px;
                height: 60px;
            }

            .feedback-icon {
                font-size: 1.8rem;
            }

            .feedback-title {
                font-size: 1.1rem;
            }

            .qr-card {
                width: 200px;
                height: 240px;
                padding: 1.5rem;
            }

            .qr-image-wrapper {
                width: 120px;
                height: 120px;
            }

            .qr-code-enhanced {
                width: 100px;
                height: 100px;
            }

            h1 {
                font-size: 1.5rem;
            }

            h2 {
                font-size: 1.25rem;
                margin: 2rem 0 1.25rem;
                padding-bottom: 1.25rem;
            }

            h3 {
                font-size: 1rem;
                margin: 1.25rem 0 0.875rem;
            }

            .tool-card {
                padding: 1rem;
            }

            .sidebar {
                width: 260px;
            }
        }

        .fade-in {
            animation: fadeIn 0.8s ease-out;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(30px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .slide-up {
            animation: slideUp 0.6s ease-out;
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(40px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .scale-in {
            animation: scaleIn 0.5s ease-out;
        }

        @keyframes scaleIn {
            from {
                opacity: 0;
                transform: scale(0.95);
            }

            to {
                opacity: 1;
                transform: scale(1);
            }
        }

        .section-intro {
            font-size: 1rem;
            color: #4a5568;
            margin-bottom: 2rem;
            max-width: 800px;
        }

        .methods-grid {
            display: flex;
            flex-direction: column;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }

        .method-item {
            background: #fff;
            border-radius: 10px;
            border: 1px solid #e5e5e5;
            padding: 2rem 2rem 1.5rem 2rem;
            margin-bottom: 0.5rem;
            box-shadow: none;
        }

        .method-header {
            display: flex;
            align-items: center;
            gap: 1.1rem;
            margin-bottom: 1.1rem;
        }

        .method-number {
            width: 2.3rem;
            height: 2.3rem;
            background: #f5f5f5;
            color: #444;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            border: 1.5px solid #e0e0e0;
        }

        .method-header h3 {
            margin: 0;
            font-size: 1.18rem;
            color: #222;
            font-weight: 700;
            letter-spacing: 0;
        }

        .method-content {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }

        .method-content>p {
            margin: 0 0 0.5rem 0;
            color: #444;
            font-size: 1.01rem;
            line-height: 1.85;
        }

        .usage-example {
            /* 极简化：去掉左侧竖线、降低背景噪点，保留轻微边框区分 */
            background: transparent;
            border-radius: 7px;
            padding: 0.9rem 1.1rem;
            border-left: none;
            margin-top: 0;
            margin-bottom: 0;
            box-shadow: none;
            border: none;
            /* 左侧不应造成额外缩进，和上方正文左对齐 */
            padding-left: 0;
        }

        .usage-example .usage-title {
            /* 与上方正文保持一致：正常块级文本，不加粗、不使用 flex 布局 */
            display: block;
            margin: 0 0 0.5rem 0;
            font-weight: 400;
            color: #444;
            font-size: 1.01rem;
            line-height: 1.85;
            padding-left: 0;
        }

        /* 隐藏 inline 灯泡 emoji，保留语义结构（最小改动，不改 HTML） */
        .usage-title .icon {
            display: none;
            width: 0;
            height: 0;
            margin: 0;
            opacity: 0;
        }

        .usage-example p {
            margin: 0 0 0.6rem 0;
            color: #444;
            font-size: 0.99rem;
            line-height: 1.8;
        }

        .usage-example p:last-child {
            margin-bottom: 0;
        }

        @media (max-width: 900px) {
            .method-item {
                padding: 1rem 0.7rem 0.7rem 0.7rem;
            }

            .method-header h3 {
                font-size: 1rem;
            }

            .method-number {
                width: 1.5rem;
                height: 1.5rem;
                font-size: 0.95rem;
            }
        }

        .subsection {
            margin-bottom: 2rem;
        }

        .subsection h3 {
            font-size: 1.25rem;
            margin-bottom: 1rem;
            color: #2d3748;
            font-weight: 600;
            padding-bottom: 0;
            border-bottom: none;
            display: inline-block;
        }

        .external-link {
            color: #4169e1;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            transition: color 0.2s;
        }

        .external-link:hover {
            color: #2c5282;
            text-decoration: underline;
        }

        .subsection p {
            color: #4a5568;
            line-height: 1.6;
            margin-bottom: 1rem;
        }

        .ai-guide-section {
            background: #f8fafc;
            border-radius: 12px;
            padding: 2rem;
            margin-bottom: 3rem;
            text-align: center;
        }

        .ai-guide-section h3 {
            color: #2d3748;
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }

        .guide-link {
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .guide-link p {
            margin: 0;
            font-size: 1rem;
            color: #4a5568;
        }

        .external-link {
            display: inline-flex;
            align-items: center;
            color: #4169e1;
            text-decoration: none;
            font-weight: 500;
            margin-left: 0.5rem;
            transition: all 0.2s ease;
        }

        .external-link:hover {
            color: #2c5282;
            text-decoration: underline;
        }

        .external-link::after {
            content: "→";
            margin-left: 0.25rem;
            transition: transform 0.2s ease;
        }

        .external-link:hover::after {
            transform: translateX(3px);
        }

        .quick-feature-row {
            display: flex;
            flex-direction: row;
            gap: 1.5rem;
            margin: 1.5rem auto;
            justify-content: center;
            align-items: stretch;
            max-width: 860px;
        }

        .quick-feature-card {
            flex: 1 1 0;
            max-width: 400px;
            min-width: 280px;
            background: #fff;
            border-radius: 8px;
            padding: 1.25rem;
            display: flex;
            flex-direction: column;
            border: 1px solid #e5e7eb;
        }

        .quick-feature-card:last-child {
            align-items: flex-start;
        }

        .card-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1rem;
            padding-bottom: 0.75rem;
            border-bottom: 1px solid #f3f4f6;
        }

        .card-icon {
            width: 32px;
            height: 32px;
            background: var(--accent-color);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .card-icon svg {
            width: 18px;
            height: 18px;
            fill: none;
            stroke: #fff;
            stroke-width: 2;
        }

        .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: #1a365d;
            letter-spacing: 0.01em;
        }

        .card-flow {
            color: #374151;
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 0.75rem;
            font-weight: 500;
        }

        .platform-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.35rem;
            justify-content: flex-start;
            margin: 0.2rem 0 0.5rem 0;
        }

        .platform-label {
            color: #9ca3af;
            font-size: 0.75rem;
            font-weight: 500;
            margin-right: 0.15rem;
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }

        .platform-tag-mini {
            background: transparent;
            color: var(--accent-color);
            border-radius: 3px;
            padding: 0.1em 0.4em;
            font-weight: 600;
            font-size: 0.75rem;
            border: 1px solid #e5e7eb;
            white-space: nowrap;
            line-height: 1.6;
            text-align: center;
            transition: all 0.2s;
        }

        .platform-tag-mini:hover {
            background: var(--accent-color);
            color: #fff;
            border-color: var(--accent-color);
        }

        .card-hint {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: #374151;
            font-size: 0.9rem;
            font-weight: 500;
            margin-top: 0.75rem;
        }

        .card-hint svg {
            width: 16px;
            height: 16px;
            stroke: #22c55e;
            stroke-width: 2.5;
            fill: none;
            flex-shrink: 0;
        }

        .content-list {
            list-style: none;
            padding: 0;
            margin: 0;
            width: 100%;
        }

        .content-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            margin-bottom: 0.5rem;
            color: #374151;
            font-size: 0.95rem;
            line-height: 1.5;
        }

        .content-list li:last-child {
            margin-bottom: 0;
        }

        .content-list svg {
            width: 16px;
            height: 16px;
            stroke: #22c55e;
            stroke-width: 2.5;
            fill: none;
            flex-shrink: 0;
            margin-top: 2px;
        }

        @media (max-width: 900px) {
            .quick-feature-row {
                flex-direction: column;
                gap: 1rem;
                max-width: 100%;
                padding: 0 1rem;
            }

            .quick-feature-card {
                max-width: 100%;
                min-width: 0;
                padding: 1rem;
            }
        }
            text-align: center;
            box-sizing: border-box;
        }

        .footer-contact-bar {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 1.2rem;
            font-size: 14px;
            color: #888;
            background: #fff;
            border: 1px solid #ececec;
            border-radius: 8px;
            margin: 2.2rem auto 0 auto;
            max-width: 480px;
            padding: 0.7rem 1.2rem 0.6rem 1.2rem;
            box-shadow: none;
        }

        .footer-contact-bar strong {
            color: #222;
            font-weight: 500;
        }

        .footer-contact-bar .dot {
            color: #e0e0e0;
            font-size: 18px;
            font-weight: 700;
            margin: 0 0.2rem;
        }

        /* 律师常用网站样式 */
        .sites-list {
            display: flex;
            flex-direction: column;
            gap: 2rem;
            margin-top: 1.5rem;
        }

        .category-group {
            background: #ffffff;
            border: 1px solid #e5e7eb;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }

        .category-title {
            background: #f8fafc;
            color: #374151;
            margin: 0;
            padding: 1rem 1.5rem;
            font-size: 1.1rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            border-bottom: 1px solid #e5e7eb;
        }

        .category-number {
            background: #e5e7eb;
            color: #6b7280;
            width: 1.8rem;
            height: 1.8rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            font-weight: 700;
        }

        .site-item {
            padding: 1.2rem 1.5rem;
            border-bottom: 1px solid #f3f4f6;
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            transition: all 0.2s ease;
            text-decoration: none;
            color: inherit;
            cursor: pointer;
        }

        .site-item:last-child {
            border-bottom: none;
        }

        .site-item:hover {
            background: #f8fafc;
        }

        .site-item:focus {
            outline: 2px solid #3b82f6;
            outline-offset: -2px;
        }

        .site-item:active {
            background: #f1f5f9;
            transform: translateX(1px);
        }

        .site-info {
            flex: 1;
        }
        .site-name {
            font-size: 1rem;
            font-weight: 600;
            color: #1f2937;
            margin-bottom: 0.4rem;
            transition: color 0.2s ease;
        }

        .site-item:hover .site-name {
            color: #3b82f6;
        }

        .site-desc {
            font-size: 0.875rem;
            color: #6b7280;
            line-height: 1.5;
        }

        /* AI指南样式 */
        .guide-section {
            margin-top: 2rem;
            padding: 2rem;
            background: #ffffff;
            border-radius: 8px;
            border: 1px solid #e5e7eb;
        }

        .guide-content p {
            color: #4b5563;
            line-height: 1.6;
            margin-bottom: 0;
        }

        .guide-action {
            text-align: center;
            margin-top: 2rem;
        }

        .guide-button {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #f8fafc;
            color: #374151;
            padding: 0.875rem 1.5rem;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 500;
            text-decoration: none;
            border: 1px solid #d1d5db;
            transition: all 0.2s ease;
        }

        .guide-button:hover {
            background: #f3f4f6;
            border-color: #9ca3af;
            color: #1f2937;
        }

        .guide-button:active {
            background: #e5e7eb;
        }

        .guide-icon {
            font-size: 1rem;
        }

        .guide-text {
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .site-item {
                flex-direction: column;
                gap: 0.75rem;
                padding: 1rem;
            }

            .category-title {
                padding: 0.875rem 1rem;
                font-size: 1rem;
            }

            .guide-section {
                padding: 1.5rem;
                margin-top: 1.5rem;
            }

            .guide-button {
                padding: 0.75rem 1.25rem;
                font-size: 0.9rem;
            }
        }

        /* 使用方式突出显示样式 */
        .usage-guide-highlight {
            background: #ffffff;
            color: #1f2937;
            padding: 2rem;
            border-radius: 12px;
            margin: 2rem 0;
            display: flex;
            align-items: center;
            gap: 1.5rem;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            border: 1px solid #e5e7eb;
        }

        .usage-icon {
            font-size: 2.5rem;
            flex-shrink: 0;
            color: #3b82f6;
        }

        .usage-content {
            flex: 1;
        }

        .usage-title {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: #1f2937;
            letter-spacing: -0.01em;
        }

        .usage-steps {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-wrap: wrap;
            font-size: 1rem;
            line-height: 1.4;
        }

        .step {
            background: #f3f4f6;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            font-weight: 600;
            color: #374151;
            border: 1px solid #e5e7eb;
            white-space: nowrap;
        }

        .step-result {
            background: #3b82f6;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            font-weight: 700;
            color: #ffffff;
            white-space: nowrap;
        }

        .arrow {
            color: #6b7280;
            font-size: 1.2rem;
            font-weight: bold;
        }

        /* 示范图片样式 */
        .demo-image-wrapper {
            margin-top: 1.5rem;
            text-align: center;
        }

        .demo-image {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            opacity: 0.95;
            transition: opacity 0.2s ease;
        }

        .demo-image:hover {
            opacity: 1;
        }

        .demo-image-container {
            text-align: center;
            margin: 2.5rem 0;
            background: #ffffff;
            border: 1px solid #e5e7eb;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }

        .demo-caption {
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #6b7280;
            font-style: italic;
        }

        .optimization-section {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #e5e7eb;
        }

        .optimization-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: #1f2937;
            margin-bottom: 0.75rem;
        }

        .optimization-section p {
            color: #6b7280;
            margin-bottom: 1rem;
            line-height: 1.5;
        }
        
        .prompt-heading {
            color: #374151;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .optimization-tips {
            margin-top: 0.5rem;
        }

        .tip-item {
            margin-bottom: 0.75rem;
            color: #374151;
            line-height: 1.5;
        }

        .tip-item:last-child {
            margin-bottom: 0;
        }

        .tip-item a {
            color: #3b82f6;
            text-decoration: none;
            font-weight: 500;
        }

        .tip-item a:hover {
            text-decoration: underline;
        }

        @media (max-width: 768px) {
            .usage-guide-highlight {
                flex-direction: column;
                text-align: center;
                padding: 1.5rem;
            }

            .usage-steps {
                flex-direction: column;
                gap: 0.5rem;
            }

            .arrow {
                transform: rotate(90deg);
                font-size: 1rem;
            }

            .demo-image-wrapper {
                margin-top: 1rem;
            }
        }

        .prompt-item, .prompt-code {
            text-align: left !important;
        }
        .prompt-code {
            padding-left: 2rem !important;
        }

        @media (min-width: 1200px) {
            .feedback-card-inner {
                width: 320px;
                height: 320px;
                padding: 3rem;
            }

            .feedback-icon-wrapper {
                width: 90px;
                height: 90px;
            }

            .feedback-icon {
                font-size: 2.5rem;
            }

            .feedback-title {
                font-size: 1.4rem;
            }

            .qr-card {
                width: 320px;
                height: 360px;
                padding: 2.5rem;
            }

            .qr-image-wrapper {
                width: 180px;
                height: 180px;
            }

            .qr-code-enhanced {
                width: 160px;
                height: 160px;
            }
        }

/* ===== 嵌入式 #1（原内联在 index.html 中） ===== */
@media (max-width: 600px) {
                        .login-title {
                            font-size: 1.08rem !important;
                        }

                        .login-input {
                            font-size: 0.98rem !important;
                            height: 40px !important;
                            padding: 0 10px !important;
                        }

                        .login-button {
                            font-size: 0.98rem !important;
                            height: 40px !important;
                        }

                        .login-card,
                        .login-form,
                        .login-message {
                            max-width: 98vw !important;
                            padding: 0 !important;
                        }
                    }

/* ===== 嵌入式 #2（原内联在 index.html 中） ===== */
.cherry-features {
                            display: grid;
                            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
                            gap: 2rem;
                            margin: 3rem 0;
                        }

                        .feature-item {
                            display: flex;
                            align-items: flex-start;
                            gap: 1rem;
                            padding: 1.5rem;
                            background: #ffffff;
                            border: 1px solid rgba(0, 0, 0, 0.04);
                            border-radius: 16px;
                            transition: all 0.3s ease;
                            box-shadow: 
                                0 1px 3px rgba(0, 0, 0, 0.02),
                                0 4px 12px rgba(0, 0, 0, 0.02);
                        }

                        .feature-item:hover {
                            transform: translateY(-3px);
                            box-shadow: 
                                0 4px 12px rgba(0, 0, 0, 0.06),
                                0 12px 32px rgba(0, 0, 0, 0.04);
                            border-color: rgba(59, 130, 246, 0.15);
                        }

                        .feature-icon {
                            font-size: 2.5rem;
                            flex-shrink: 0;
                        }

                        .feature-item p {
                            color: #4a5568;
                            line-height: 1.6;
                            margin: 0;
                            font-size: 1.1rem;
                        }

                        .cherry-studio-access {
                            margin: 3rem 0;
                            display: flex;
                            justify-content: center;
                        }

                        /* Minimal, Apple-like card: light, airy, subtle shadow */
                        .access-card {
                            background: #ffffff;
                            border-radius: 16px;
                            padding: 2rem;
                            text-align: center;
                            max-width: 600px;
                            width: 100%;
                            box-shadow: 0 6px 18px rgba(15, 15, 15, 0.06);
                            border: 1px solid #e6e6e6;
                            position: relative;
                            overflow: hidden;
                        }

                        .access-card::before {
                            display: none;
                        }

                        .access-header h3 {
                            color: #0f1724;
                            margin-bottom: 1rem;
                            font-size: 1.6rem;
                            font-weight: 600;
                            letter-spacing: -0.01em;
                        }

                        .access-info {
                            background: transparent;
                            border-radius: 12px;
                            padding: 1.25rem;
                            border: none;
                            backdrop-filter: none;
                            box-shadow: none;
                        }

                        /* keep items inline and clean for a tidy, minimal layout */
                        .access-item {
                            display: flex;
                            align-items: center;
                            justify-content: space-between;
                            gap: 1rem;
                            margin-bottom: 1rem;
                            flex-wrap: nowrap;
                        }

                        .access-item:last-child {
                            margin-bottom: 0;
                        }

                        .access-label {
                            color: #6b7280;
                            font-weight: 600;
                            font-size: 1rem;
                        }

                        .access-link {
                            color: #0a84ff;
                            text-decoration: none;
                            font-weight: 600;
                            font-size: 1rem;
                            transition: all 0.18s ease;
                            padding: 0.5rem 0.9rem;
                            border: 1px solid rgba(10, 132, 255, 0.12);
                            border-radius: 999px;
                            background: rgba(10, 132, 255, 0.06);
                        }

                        .access-link:hover {
                            background: rgba(10, 132, 255, 0.12);
                            color: #044ab3;
                        }

                        .password-code {
                            background: #f3f4f6;
                            padding: 0.45rem 0.7rem;
                            border-radius: 8px;
                            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, "Roboto Mono", "Courier New", monospace;
                            font-weight: 600;
                            letter-spacing: 0.08em;
                            font-size: 1rem;
                            color: #0f1724;
                            border: none;
                        }

                        /* 新密码复制按钮样式（更精致、可交互）*/
                        .password-wrap {
                            display: flex;
                            align-items: center;
                        }

                        .password-copy {
                            display: inline-flex;
                            align-items: center;
                            gap: 0.6rem;
                            background: #0a84ff;
                            color: #ffffff;
                            padding: 0.45rem 0.9rem;
                            border-radius: 999px;
                            border: none;
                            font-weight: 600;
                            cursor: pointer;
                            box-shadow: 0 8px 22px rgba(10, 132, 255, 0.10);
                            transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
                        }

                        .password-copy:active {
                            transform: translateY(1px);
                        }

                        .password-copy .password-text {
                            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, "Roboto Mono", "Courier New", monospace;
                            letter-spacing: 0.08em;
                            font-size: 0.98rem;
                        }

                        .password-copy .copy-hint {
                            font-size: 0.85rem;
                            opacity: 0.95;
                            background: rgba(255,255,255,0.12);
                            padding: 0.18rem 0.5rem;
                            border-radius: 999px;
                        }

                        .password-copy.copied {
                            background: #28c76f;
                            box-shadow: 0 8px 22px rgba(40, 199, 111, 0.12);
                        }

                        @media (max-width: 768px) {
                            .cherry-features {
                                grid-template-columns: 1fr;
                                gap: 1.5rem;
                            }

                            .feature-item {
                                flex-direction: column;
                                text-align: center;
                                gap: 1rem;
                            }

                            .access-card {
                                padding: 2rem;
                                margin: 0 1rem;
                            }

                            .access-item {
                                flex-direction: column;
                                gap: 0.8rem;
                            }

                            .access-link {
                                padding: 0.8rem 1.5rem;
                            }
                        }

                        /* 子部分样式 */
                        .subsection {
                            margin: 3rem 0;
                            padding: 2rem 0;
                            border-top: 1px solid #e2e8f0;
                        }

                        /* Remove visual separators specifically in 第三部分 (powerful-tools)
                           and reduce vertical spacing so headings align with other sections. */
                        #powerful-tools {
                            border-top: none;
                        }

                        #powerful-tools .subsection {
                            border-top: none;
                            /* smaller spacing to match other sections */
                            padding: 0.6rem 0;
                            margin: 1rem 0;
                        }

                        /* Override h3 top margin inside 第三部分 to avoid large gaps */
                        #powerful-tools .subsection h3 {
                            margin-top: 0.4rem;
                        }

                        .subsection:first-child {
                            border-top: none;
                            margin-top: 0;
                        }

                        .subsection h3 {
                            font-size: 1.25rem;
                            color: #2d3748;
                            margin-bottom: 1rem;
                            font-weight: 600;
                            padding-bottom: 0;
                            border-bottom: none;
                            display: inline-block;
                        }

/* ===== 嵌入式 #3（原内联在 index.html 中） ===== */
.ai-guide-card {
                            background: transparent;
                            padding: 0;
                            margin: 1.5rem 0 0 0;
                            border-radius: 0;
                            border: none;
                        }

                        .card-header {
                            margin-bottom: 24px;
                        }

                        .card-header h3 {
                            font-size: 1.5em;
                            color: #1a1a1a;
                            margin-bottom: 16px;
                        }

                        .subtitle {
                            font-size: 1.1em;
                            color: #666;
                            line-height: 1.6;
                            text-align: left;
                            margin: 0 0 1rem 0;
                        }
                        /* 保证首页 intro 的 subtitle 居中显示（覆盖上面的全局 left） */
                        .intro-header .subtitle {
                            text-align: center;
                            margin-left: auto;
                            margin-right: auto;
                            max-width: 640px;
                        }
                        /* 确保说明段落占满整行并正常换行（修复文字被限制在左列的问题） */
                        .ai-guide-card .card-header .subtitle,
                        .ai-guide-card .examples p,
                        .ai-guide-card .example-desc {
                            display: block;
                            width: 100%;
                            max-width: none;
                            white-space: normal;
                            word-break: normal;
                            margin-left: 0;
                        }

                        .examples {
                            margin: 20px 0;
                        }

                        .examples p {
                            margin: 16px 0 4px 0;
                            color: #333;
                            font-size: 1.1em;
                        }

                        .example-desc {
                            color: #666;
                            margin: 4px 0 16px 24px !important;
                            font-size: 1em !important;
                        }

                        /* Make the subtitle inside powerful-tools match the section-intro color and weight/size */
                        #powerful-tools .ai-guide-card .card-header .subtitle {
                            color: #4a5568;
                            font-size: 1rem;
                            font-weight: 400;
                            line-height: 1.6;
                        }

                        .action-section {
                            text-align: center;
                            margin-top: 32px;
                        }

                        .action-button {
                            display: inline-flex;
                            align-items: center;
                            gap: 14px;
                            background: linear-gradient(180deg, #ffffff, #fbfdff);
                            color: #0f1724;
                            padding: 12px 18px;
                            border-radius: 14px;
                            text-decoration: none;
                            font-size: 1rem;
                            font-weight: 600;
                            transition: transform 0.18s ease, box-shadow 0.18s ease;
                            border: 1px solid #e6eefc;
                            box-shadow: 0 8px 20px rgba(16,24,40,0.04);
                        }

                        .action-button.refined {
                            max-width: 520px;
                            width: 100%;
                            padding: 14px 18px;
                            justify-content: space-between;
                        }

                        .action-button.refined:hover {
                            transform: translateY(-4px);
                            box-shadow: 0 14px 40px rgba(16,24,40,0.08);
                        }

                        .icon-circle {
                            display: inline-flex;
                            align-items: center;
                            justify-content: center;
                            width: 44px;
                            height: 44px;
                            border-radius: 10px;
                            background: linear-gradient(180deg, #f1f5ff, #eef7ff);
                            color: #0b5ed7;
                            font-size: 1.25rem;
                            flex-shrink: 0;
                            box-shadow: 0 6px 18px rgba(11,94,215,0.08);
                        }

                        .action-texts {
                            flex: 1 1 auto;
                            text-align: left;
                            padding: 0 12px;
                        }

                        .action-title {
                            font-size: 1rem;
                            color: #0f1724;
                            font-weight: 700;
                            line-height: 1.1;
                        }

                        .action-sub {
                            margin-top: 2px;
                            font-size: 0.88rem;
                            color: #6b7280;
                            font-weight: 500;
                        }

                        .arrow {
                            color: #94a3b8;
                            font-size: 1.4rem;
                            transition: transform 0.2s ease, color 0.18s ease;
                        }

                        .action-button.refined:hover .arrow {
                            transform: translateX(6px);
                            color: #0b5ed7;
                        }

                        .demo-showcase {
                            margin: 2rem 0;
                            padding: 2rem;
                            background: #f8fafc;
                            border-radius: 12px;
                            border: 1px solid #e2e8f0;
                        }

                        .demo-intro {
                            color: #4a5568;
                            font-size: 1rem;
                            line-height: 1.6;
                            margin-bottom: 1.5rem;
                            text-align: left;
                        }

                        .demo-content {
                            display: flex;
                            flex-direction: column;
                            gap: 1.5rem;
                            align-items: flex-start;
                        }

                        .demo-link-section {
                            text-align: center;
                        }

                        .demo-link {
                            display: inline-flex;
                            align-items: center;
                            gap: 0.75rem;
                            background: #1a365d;
                            color: white;
                            padding: 0.875rem 1.5rem;
                            border-radius: 8px;
                            text-decoration: none;
                            font-size: 1rem;
                            font-weight: 600;
                            transition: all 0.2s ease;
                        }

                        .demo-link:hover {
                            background: #2c5282;
                            transform: translateY(-1px);
                        }

                        .demo-icon {
                            font-size: 1.2rem;
                        }

                        .link-arrow {
                            transition: transform 0.2s ease;
                        }

                        .demo-link:hover .link-arrow {
                            transform: translateX(3px);
                        }

                        .demo-image-section {
                            text-align: center;
                            max-width: 100%;
                        }

                        .demo-image {
                            max-width: 100%;
                            height: auto;
                            border-radius: 8px;
                        }

                        @media (max-width: 768px) {
                            .demo-showcase {
                                padding: 1.5rem;
                                margin: 1.5rem 0;
                            }

                            .demo-content {
                                flex-direction: column;
                                gap: 0.8rem;
                            }

                            .demo-link {
                                padding: 0.75rem 1.25rem;
                                font-size: 0.9rem;
                            }
                        }

/* ===== 嵌入式 #4（原内联在 index.html 中） ===== */
/* Prominent themed access card - local to this subsection */
                                    .zero-access-card {
                                        display: flex;
                                        align-items: center;
                                        justify-content: space-between;
                                        gap: 14px;
                                        max-width: 520px; /* match .action-button.refined width */
                                        margin: 0.8rem auto 0 auto;
                                        padding: 12px; /* slightly shorter */
                                        border-radius: 14px;
                                        background: linear-gradient(180deg, #ffffff, #fbfdff); /* match action-button refined */
                                        border: 1px solid rgba(230,238,252,0.6);
                                        box-shadow: 0 8px 20px rgba(26,54,93,0.04);
                                    }

                                    .zero-access-left {
                                        display: flex;
                                        flex-direction: column;
                                        gap: 6px;
                                    }
                                    .zero-access-title {
                                        font-size: 1.05rem;
                                        font-weight: 700;
                                        color: #0f1724;
                                    }
                                    .zero-access-sub {
                                        font-size: 0.92rem;
                                        color: #334155;
                                    }

                                    .zero-access-right {
                                        display: flex;
                                        align-items: center;
                                        gap: 12px;
                                    }

                                    .zero-access-button {
                                        display: inline-flex;
                                        align-items: center;
                                        gap: 10px;
                                        padding: 10px 14px;
                                        border-radius: 999px;
                                        background: linear-gradient(180deg,#1a365d,#2c5282);
                                        color: #fff;
                                        font-weight: 700;
                                        text-decoration: none;
                                        border: 1px solid rgba(255,255,255,0.06);
                                        box-shadow: 0 10px 28px rgba(26,54,93,0.12);
                                    }

                                    .zero-password .password-copy {
                                        background: #f3f4f6;
                                        color: #0f1724;
                                        padding: 8px 10px;
                                        border-radius: 10px;
                                        border: none;
                                        display: inline-flex;
                                        gap: 8px;
                                        align-items: center;
                                        font-weight: 700;
                                    }

                                    .zero-password .password-text {
                                        font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, "Roboto Mono", monospace;
                                        letter-spacing: 0.08em;
                                        font-size: 0.98rem;
                                    }
                                    .zero-password .pw-label-inline {
                                        color: #334155;
                                        font-weight: 700;
                                        margin-right: 8px;
                                        font-size: 0.95rem;
                                    }

                                    @media (max-width: 720px) {
                                        .zero-access-card {
                                            flex-direction: column;
                                            align-items: stretch;
                                        }
                                        .zero-access-right { justify-content: space-between; }
                                    }

/* ===== 嵌入式 #5（原内联在 index.html 中） ===== */
.company-section {
                            margin: 3rem 0;
                        }
                        
                        .company-section h4 {
                            color: #1a365d;
                            font-size: 1.4rem;
                            font-weight: 600;
                            margin-bottom: 0.5rem;
                            position: relative;
                            padding-left: 1rem;
                        }
                        
                        .company-section h4::before {
                            content: '';
                            position: absolute;
                            left: 0;
                            top: 50%;
                            transform: translateY(-50%);
                            width: 4px;
                            height: 1.2rem;
                            background: linear-gradient(135deg, #c9a96e, #1a365d);
                            border-radius: 2px;
                        }
                        
                        .company-section p {
                            color: #6b7280;
                            font-size: 0.95rem;
                            margin-bottom: 1.5rem;
                            font-style: italic;
                        }
                        
                        .company-list {
                            display: flex;
                            flex-direction: column;
                            gap: 0.8rem;
                        }
                        
                        .company-item {
                            background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
                            border: 1px solid rgba(201, 169, 110, 0.1);
                            border-radius: 12px;
                            padding: 1.2rem 1.5rem;
                            transition: all 0.3s ease;
                            position: relative;
                            overflow: hidden;
                        }
                        
                        .company-item::before {
                            content: '';
                            position: absolute;
                            top: 0;
                            left: 0;
                            width: 100%;
                            height: 2px;
                            background: linear-gradient(90deg, #c9a96e, transparent);
                            transform: scaleX(0);
                            transition: transform 0.3s ease;
                        }
                        
                        .company-item:hover {
                            transform: translateY(-2px);
                            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
                            border-color: rgba(201, 169, 110, 0.2);
                        }
                        
                        .company-item:hover::before {
                            transform: scaleX(1);
                        }
                        
                        .company-item a {
                            color: #1a365d;
                            text-decoration: none;
                            font-weight: 600;
                            font-size: 1.1rem;
                            display: block;
                            margin-bottom: 0.5rem;
                            transition: color 0.2s ease;
                        }
                        
                        .company-item a:hover {
                            color: #c9a96e;
                        }
                        
                        .company-item span {
                            color: #4b5563;
                            font-size: 0.95rem;
                            line-height: 1.6;
                            display: block;
                        }
                        
                        @media (max-width: 768px) {
                            .company-item {
                                padding: 1rem;
                            }

                            .company-item a {
                                font-size: 1rem;
                            }

                            .company-item span {
                                font-size: 0.9rem;
                            }
                        }

                        /* ========== Skills 渲染样式 ========== */
                        .skill-desc {
                            color: #555;
                            font-size: 0.95rem;
                            margin-bottom: 1rem;
                            line-height: 1.7;
                        }

                        .skill-details {
                            margin-bottom: 0.8rem;
                            border: 1px solid #e5e7eb;
                            border-radius: 8px;
                            overflow: hidden;
                        }

                        .skill-summary {
                            padding: 0.7rem 1.2rem;
                            background: #f8fafc;
                            font-size: 0.9rem;
                            font-weight: 600;
                            color: #374151;
                            cursor: pointer;
                            user-select: none;
                            border-bottom: 1px solid transparent;
                        }

                        .skill-details[open] .skill-summary {
                            border-bottom-color: #e5e7eb;
                        }

                        .skill-file-header {
                            background: #f8fafc;
                            padding: 0.5rem 1.2rem;
                            font-size: 0.8rem;
                            color: #64748b;
                            font-family: 'SF Mono', 'Menlo', 'Consolas', monospace;
                            border-bottom: 1px solid #e5e7eb;
                        }

                        .skill-code {
                            background: #1e293b;
                            color: #e2e8f0;
                            padding: 1.2rem 1.5rem;
                            margin: 0;
                            font-family: 'SF Mono', 'Menlo', 'Consolas', monospace;
                            font-size: 0.85rem;
                            line-height: 1.7;
                            overflow-x: auto;
                            white-space: pre;
                            border-radius: 0;
                            text-align: left;
                        }

                        .skill-copy-btn {
                            margin-top: 0;
                        }