.pc-hero {
            position: relative;
            padding: 2.5rem 0 2.75rem;
            background: linear-gradient(to right, #EFF6FF, #fff);
            border-bottom: 1px solid #E5E7EB
        }

        @media(min-width:768px) {
            .pc-hero {
                padding: 3.5rem 0 4rem
            }
        }

        .pc-hero h1 {
            font-size: 1.75rem;
            font-weight: 700;
            color: #1F2937;
            margin-bottom: .75rem
        }

        @media(min-width:768px) {
            .pc-hero h1 {
                font-size: 2.25rem
            }
        }

        .pc-hero p {
            color: #6B7280;
            font-size: .875rem;
            margin-bottom: 1.5rem;
            max-width: 42rem
        }

        @media(min-width:768px) {
            .pc-hero p {
                font-size: 1rem
            }
        }

        .pc-search {
            position: relative;
            max-width: 28rem
        }

        .pc-search .pc-sic {
            position: absolute;
            left: .75rem;
            top: 50%;
            transform: translateY(-50%);
            width: 1rem;
            height: 1rem;
            color: #9CA3AF
        }

        .pc-search input {
            width: 100%;
            padding: .625rem .75rem .625rem 2.25rem;
            border: 1px solid #E5E7EB;
            border-radius: .5rem;
            font-size: .875rem;
            background: #fff;
            color: #1F2937
        }

        .pc-search input:focus {
            outline: none;
            border-color: #2563EB;
            box-shadow: 0 0 0 2px rgba(37, 99, 235, .15)
        }

        .pc-clear {
            position: absolute;
            right: .5rem;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: #9CA3AF;
            cursor: pointer;
            display: none;
            padding: .25rem;
            line-height: 1
        }

        .pc-clear:hover {
            color: #6B7280
        }

        .pc-main {
            padding: 2rem 0 3rem
        }

        @media(min-width:768px) {
            .pc-main {
                padding: 3rem 0 4rem
            }
        }

        .pc-cats {
            display: flex;
            flex-direction: column;
            gap: 1.5rem
        }

        @media(min-width:768px) {
            .pc-cats {
                gap: 2rem
            }
        }

        .pc-cat {
            border: 1px solid #E5E7EB;
            border-radius: .75rem;
            overflow: hidden;
            background: #fff
        }

        .pc-cat-head {
            background: #F8FAFC;
            padding: 1.25rem 1.5rem;
            border-bottom: 1px solid #E5E7EB
        }

        @media(min-width:768px) {
            .pc-cat-head {
                padding: 1.25rem 2rem
            }
        }

        .pc-cat-head-row {
            display: flex;
            align-items: center;
            gap: .75rem
        }

        .pc-cat-icon {
            width: 2.25rem;
            height: 2.25rem;
            border-radius: .5rem;
            background: #EFF6FF;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: #2563EB
        }

        .pc-cat-icon svg {
            width: 1.25rem;
            height: 1.25rem
        }

        .pc-cat-title {
            font-size: 1.125rem;
            font-weight: 700;
            color: #1F2937;
            margin: 0
        }

        @media(min-width:768px) {
            .pc-cat-title {
                font-size: 1.25rem
            }
        }

        .pc-cat-en {
            font-size: .75rem;
            color: #6B7280
        }

        .pc-cat-count {
            font-size: .75rem;
            background: #EFF6FF;
            color: #2563EB;
            padding: .125rem .5rem;
            border-radius: 999px;
            font-weight: 500;
            margin-left: auto
        }

        .pc-cat-desc {
            font-size: .875rem;
            color: #6B7280;
            margin: .5rem 0 0
        }

        .pc-cat-body {
            padding: 1rem 1.5rem 1.25rem
        }

        @media(min-width:768px) {
            .pc-cat-body {
                padding: 1rem 2rem 1.25rem
            }
        }

        .pc-subgrid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0
        }

        @media(min-width:576px) {
            .pc-subgrid {
                grid-template-columns: 1fr 1fr
            }
        }

        @media(min-width:992px) {
            .pc-subgrid {
                grid-template-columns: repeat(3, 1fr)
            }
        }

        .pc-sub {
            display: flex;
            align-items: flex-start;
            gap: .5rem;
            padding: .75rem .5rem;
            border-bottom: 1px solid #F3F4F6;
            color: #1F2937;
            text-decoration: none;
            transition: color .15s
        }

        .pc-sub:hover {
            color: #2563EB
        }

        .pc-chev {
            width: .875rem;
            height: .875rem;
            color: #D1D5DB;
            flex-shrink: 0;
            margin-top: .125rem;
            transition: color .15s
        }

        .pc-sub:hover .pc-chev {
            color: #2563EB
        }

        .pc-sub-text {
            flex: 1;
            min-width: 0
        }

        .pc-sub-name {
            display: flex;
            align-items: center;
            gap: .375rem;
            font-size: .875rem;
            font-weight: 500;
            color: #1F2937
        }

        .pc-sub:hover .pc-sub-name {
            color: #2563EB
        }

        .pc-sub-count {
            font-size: .75rem;
            color: #9CA3AF;
            font-weight: 400
        }

        .pc-sub-param {
            font-size: .75rem;
            color: #9CA3AF;
            margin: .125rem 0 0;
            line-height: 1.4
        }

        .pc-results-note {
            font-size: .875rem;
            color: #6B7280;
            margin-bottom: 1rem
        }

        .pc-results-empty {
            text-align: center;
            padding: 3rem 0;
            color: #9CA3AF
        }