:root {
            --ink: #202124;
            --muted: #70757a;
            --line: #e5e7eb;
            --line-strong: #dadce0;
            --green: #18864b;
            --green-dark: #126b3b;
            --green-soft: #e7f4ec;
            --page: #ffffff;
            --surface-soft: #f8f9fa;
            --shadow: 0 2px 8px rgba(60, 64, 67, .16);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            min-width: 320px;
            min-height: 100vh;
            margin: 0;
            overflow-x: hidden;
            color: var(--ink);
            background: var(--page);
            font-family: Arial, "Microsoft YaHei", sans-serif;
            line-height: 1.5;
        }

        a,
        button {
            -webkit-tap-highlight-color: transparent;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        button,
        input {
            font: inherit;
        }

        button {
            cursor: pointer;
        }

        .container {
            width: min(1100px, calc(100% - 40px));
            margin: 0 auto;
        }

        .site-header {
            height: 64px;
            border-bottom: 1px solid #f1f3f4;
            background: #fff;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 9px;
        }

        .brand-symbol {
            display: grid;
            width: 31px;
            height: 31px;
            place-items: center;
            border-radius: 50%;
            color: #fff;
            background: var(--green);
            font-size: 15px;
            font-weight: 700;
        }

        .brand-name {
            color: #3c4043;
            font-size: 17px;
            font-weight: 700;
            letter-spacing: -.03em;
        }

        .brand-name em {
            color: var(--green);
            font-style: normal;
        }

        .header-links {
            display: flex;
            align-items: center;
            gap: 22px;
            color: #5f6368;
            font-size: 13px;
        }

        .header-links a:hover,
        .header-links a:focus-visible {
            color: var(--green-dark);
            text-decoration: underline;
        }

        .header-links .demand-link {
            padding: 8px 14px;
            border-radius: 999px;
            color: var(--green-dark);
            background: var(--green-soft);
            font-weight: 700;
            text-decoration: none;
        }

        main {
            min-height: calc(100vh - 122px);
        }

        .search-hero {
            padding: 64px 0 42px;
            text-align: center;
        }

        .search-logo {
            margin: 0;
            color: #3c4043;
            font-size: clamp(36px, 5vw, 54px);
            font-weight: 500;
            letter-spacing: -.08em;
        }

        .search-logo-accent {
            color: var(--green);
        }

        .tagline {
            max-width: 860px;
            margin: 10px auto 23px;
            padding: 0 8px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.7;
        }

        .search-form {
            display: flex;
            width: min(640px, 100%);
            height: 48px;
            margin: 0 auto;
            padding: 0 7px 0 17px;
            border: 1px solid var(--line-strong);
            border-radius: 25px;
            background: #fff;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .search-form:focus-within,
        .search-form:hover {
            border-color: transparent;
            box-shadow: var(--shadow);
        }

        .search-icon {
            position: relative;
            flex: 0 0 auto;
            width: 16px;
            height: 16px;
            margin: 15px 12px 0 0;
            border: 2px solid #9aa0a6;
            border-radius: 50%;
        }

        .search-icon::after {
            position: absolute;
            right: -5px;
            bottom: -3px;
            width: 6px;
            height: 2px;
            border-radius: 2px;
            background: #9aa0a6;
            content: "";
            transform: rotate(45deg);
        }

        .search-form input {
            min-width: 0;
            flex: 1;
            border: 0;
            outline: 0;
            color: var(--ink);
            background: transparent;
            font-size: 15px;
        }

        .search-form input::placeholder {
            color: #9aa0a6;
        }

        .search-submit {
            display: inline-flex;
            width: 78px;
            height: 36px;
            margin-top: 5px;
            align-items: center;
            justify-content: center;
            gap: 4px;
            padding: 0 12px;
            border: 0;
            border-radius: 999px;
            color: #fff;
            background: var(--green);
            font-size: 14px;
            font-weight: 700;
            line-height: 1;
            white-space: nowrap;
        }

        .search-submit-icon {
            position: relative;
            display: inline-block;
            flex: 0 0 auto;
            width: 18px;
            height: 18px;
            border: 2px solid currentColor;
            border-radius: 50%;
            transform: rotate(-45deg);
        }

        .search-submit-icon::after {
            position: absolute;
            left: 50%;
            bottom: -7px;
            width: 3px;
            height: 8px;
            border-radius: 3px;
            background: currentColor;
            content: "";
            transform: translateX(-50%);
        }

        .search-submit:hover,
        .search-submit:focus-visible {
            background: var(--green-dark);
        }

        .source-picker {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            margin: 25px auto 0;
            color: var(--muted);
            font-size: 12px;
        }

        .source-options {
            display: inline-flex;
            gap: 4px;
            padding: 3px;
            border: 1px solid var(--line);
            border-radius: 999px;
            background: var(--surface-soft);
        }

        .source-option {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            border: 0;
            border-radius: 999px;
            color: #5f6368;
            background: transparent;
            font-size: 12px;
        }

        .source-option img {
            flex-shrink: 0;
            width: 16px;
            height: 16px;
            object-fit: contain;
        }

        .source-option:hover,
        .source-option:focus-visible,
        .source-option.is-active {
            color: var(--green-dark);
            background: #fff;
            box-shadow: 0 1px 3px rgba(60, 64, 67, .14);
        }

        .source-status {
            color: #9aa0a6;
        }

        .hot-resources {
            padding: 10px 0 52px;
        }

        .section-heading {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 17px;
        }

        .section-heading h2 {
            margin: 0;
            color: #3c4043;
            font-size: 21px;
            font-weight: 500;
        }

        .section-heading p {
            margin: 0;
            color: var(--muted);
            font-size: 12px;
        }

        .section-heading strong {
            color: var(--green);
            font-size: 16px;
        }

        .hot-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 16px;
        }

        .hot-card {
            border: 1px solid #edf0f2;
            border-radius: 12px;
            background: #fff;
        }

        .hot-card-header {
            position: relative;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            min-height: 118px;
            overflow: hidden;
            padding: 20px;
            border-radius: 11px 11px 0 0;
            background: #263e35;
            isolation: isolate;
        }

        .category-image,
        .hot-card-header::after {
            position: absolute;
            z-index: -1;
            inset: 0;
            width: 100%;
            height: 100%;
        }

        .category-image {
            object-fit: cover;
            object-position: center;
        }

        .hot-card-header::after {
            background: linear-gradient(90deg, rgba(10, 23, 20, .76), rgba(10, 23, 20, .12) 80%),
                linear-gradient(0deg, rgba(10, 23, 20, .3), transparent);
            content: "";
        }

        .hot-card-header h3 {
            margin: 0;
            color: #fff;
            font-size: 19px;
            font-weight: 600;
            letter-spacing: .03em;
        }

        .category-description {
            margin: 5px 0 0;
            color: #f1f5f2;
            font-size: 11px;
            letter-spacing: .04em;
        }

        .category-more {
            flex-shrink: 0;
            padding: 6px 11px;
            border: 1px solid rgba(255, 255, 255, .4);
            border-radius: 999px;
            color: #fff;
            background: rgba(10, 23, 20, .46);
            font-size: 12px;
        }

        .hhgys-page .category-more,
        .hhgys-page .category-more:visited,
        .hhgys-page .category-more:hover,
        .hhgys-page .category-more:focus-visible {
            color: #fff;
        }

        .category-more:hover,
        .category-more:focus-visible {
            background: rgba(10, 23, 20, .75);
        }

        .category-more:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 3px;
        }

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

        .hot-item {
            display: grid;
            grid-template-columns: 24px minmax(0, 1fr) auto;
            align-items: center;
            gap: 10px;
            min-height: 59px;
            padding: 9px 17px;
            border-bottom: 1px solid #f5f6f7;
        }

        .hot-item:last-child {
            border-bottom: 0;
        }

        .hot-rank {
            color: #9aa0a6;
            font-size: 11px;
            font-variant-numeric: tabular-nums;
            text-align: center;
        }

        .hot-item:nth-child(-n + 3) .hot-rank {
            color: var(--green);
            font-weight: 700;
        }

        .resource-button {
            display: block;
            max-width: 100%;
            overflow: hidden;
            padding: 0;
            border: 0;
            color: #3c4043;
            background: transparent;
            font-size: 13px;
            font-weight: 600;
            text-align: left;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .resource-button:hover,
        .resource-button:focus-visible {
            color: var(--green-dark);
            text-decoration: underline;
        }

        .resource-meta {
            display: block;
            overflow: hidden;
            margin-top: 3px;
            color: #9aa0a6;
            font-size: 11px;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .ranking-badge {
            padding: 3px 7px;
            border-radius: 999px;
            color: var(--green-dark);
            background: var(--green-soft);
            font-size: 10px;
            white-space: nowrap;
        }

        .empty-state {
            padding: 44px 20px;
            border: 1px dashed var(--line-strong);
            border-radius: 10px;
            color: var(--muted);
            text-align: center;
        }

        .empty-state strong {
            display: block;
            margin-bottom: 5px;
            color: #3c4043;
            font-size: 15px;
        }

        .site-footer {
            display: flex;
            justify-content: space-between;
            min-height: 58px;
            padding: 18px 24px;
            border-top: 1px solid #f1f3f4;
            color: #70757a;
            background: #f8f9fa;
            font-size: 11px;
        }

        .site-footer p {
            margin: 0;
        }

        .toast {
            position: fixed;
            z-index: 3;
            right: 18px;
            bottom: 18px;
            max-width: min(360px, calc(100% - 36px));
            padding: 11px 15px;
            border: 1px solid #c9e5d3;
            border-radius: 8px;
            color: var(--green-dark);
            background: #fff;
            box-shadow: var(--shadow);
            font-size: 12px;
            opacity: 0;
            pointer-events: none;
            transform: translateY(8px);
            transition: opacity .2s ease, transform .2s ease;
        }

        .toast.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (max-width: 700px) {
            .container {
                width: min(100% - 28px, 620px);
            }

            .site-header {
                height: 58px;
            }

            .header-links {
                gap: 10px;
                font-size: 12px;
            }

            .header-links a:first-child {
                display: none;
            }

            .header-links .demand-link {
                padding: 7px 11px;
            }

            main {
                min-height: 0;
            }

            .search-hero {
                padding: 44px 0 34px;
            }

            .search-logo {
                font-size: 41px;
            }

            .tagline {
                margin-top: 8px;
                font-size: 13px;
            }

            .search-form {
                height: 46px;
                padding-left: 14px;
            }

            .search-submit {
                width: 72px;
                height: 34px;
                margin-top: 5px;
                padding: 0 10px;
            }

            .source-picker {
                gap: 7px;
                margin-top: 22px;
            }

            .source-status {
                flex-basis: 100%;
            }

            .hot-resources {
                padding-bottom: 38px;
            }

            .section-heading {
                margin-bottom: 13px;
            }

            .section-heading h2 {
                font-size: 19px;
            }

            .hot-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .hot-item {
                grid-template-columns: 22px minmax(0, 1fr) auto;
                gap: 8px;
                padding: 9px 13px;
            }

            .hot-card-header {
                min-height: 108px;
                padding: 16px;
            }

            .resource-button {
                white-space: normal;
            }

            .ranking-badge {
                padding: 3px 6px;
                font-size: 9px;
            }

            .site-footer {
                display: block;
                padding: 16px 14px;
                text-align: center;
            }

            .site-footer p + p {
                margin-top: 4px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                scroll-behavior: auto !important;
                transition-duration: .01ms !important;
            }
        }