:root {
            --white: #ffffff;
            --black: #181818;
            --gray-1: #4f4f4f;
            --gray-2: #777777;
            --gray-3: #a5a5a5;
            --gray-4: #dcdcdc;
            --gray-5: #eeeeee;
            --gray-6: #f7f7f7;

            --accent: #8a6f52;
            --accent-strong: #6e573f;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: auto;
        }

        body {
            background: var(--white);
            color: var(--black);

            font-family:
                -apple-system,
                BlinkMacSystemFont,
                "Segoe UI",
                "PingFang SC",
                "Hiragino Sans GB",
                "Microsoft YaHei",
                Arial,
                sans-serif;

            font-size: 15px;
            line-height: 1.8;

            -webkit-font-smoothing: antialiased;
        }

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

        .container {
            width: min(calc(100% - 48px), 760px);
            margin: 0 auto;
        }

        

        .page-top {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;

            padding: 64px 0 30px;

            border-bottom: 1px solid var(--gray-4);
        }

        .page-top h1 {
            font-size: clamp(28px, 4vw, 36px);
            font-weight: 700;
            letter-spacing: -0.03em;
            line-height: 1.25;
        }

        .page-note {
            color: var(--gray-2);
            font-size: 13px;

            margin-top: 4px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;

            height: 40px;
            padding: 0 20px;

            border-radius: 8px;
            border: 1px solid transparent;

            font-size: 13px;
            font-weight: 600;
            font-family: inherit;

            cursor: pointer;
            white-space: nowrap;

            transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
        }

        .btn-accent {
            background: var(--accent);
            color: var(--white);
        }

        .btn-accent:hover {
            background: var(--accent-strong);
        }

        .btn-ghost {
            background: var(--white);
            border-color: var(--gray-4);
            color: var(--black);
        }

        .btn-ghost:hover {
            background: var(--gray-6);
            border-color: #c8c8c8;
        }

        .btn-small {
            height: 34px;
            padding: 0 16px;
            font-size: 12.5px;
        }

        
        .icon-dl {
            display: inline-flex;
            align-items: center;
            justify-content: center;

            width: 40px;
            height: 34px;

            background: #1f2937;
            color: var(--white);
            border: none;
            border-radius: 6px;

            box-shadow:
                0 20px 25px -5px rgba(0, 0, 0, 0.1),
                0 8px 10px -6px rgba(0, 0, 0, 0.1);

            cursor: pointer;

            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        .icon-dl:hover {
            transform: translateY(-3px);

            box-shadow:
                0 24px 30px -6px rgba(0, 0, 0, 0.16),
                0 10px 12px -6px rgba(0, 0, 0, 0.1);
        }

        html.dark .icon-dl {
            color: #f4f6f9;
            background: #2a3038;
            border: 1px solid #3a4149;
        }

        .icon-dl:active {
            transform: translateY(-1px);
        }

        .icon-dl svg {
            width: 20px;
            height: 20px;

            stroke: currentColor;
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        

        .items {
            padding: 10px 0 60px;
        }

        .item {
            display: flex;
            align-items: flex-start;
            gap: 24px;

            padding: 26px 0;

            border-bottom: 1px solid var(--gray-5);
        }

        .item-info {
            flex: 1;
            min-width: 0;
        }

        .item-name {
            font-size: 16.5px;
            font-weight: 600;
            letter-spacing: -0.01em;
        }

        .item-count {
            color: var(--gray-3);
            font-size: 12px;

            margin-left: 10px;
            font-weight: 400;
        }

        .item-desc {
            color: var(--gray-1);
            font-size: 13.5px;

            margin-top: 4px;
        }

        .item-desc .muted {
            color: var(--gray-3);
        }

        .ext-link {
            color: var(--accent-strong);
            font-weight: 500;

            border-bottom: 1px solid #d9cdbd;
            transition: border-color 0.15s ease, color 0.15s ease;
        }

        .ext-link:hover {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }

        .item-side {
            flex-shrink: 0;

            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 6px;

            padding-top: 2px;
        }

        .item-side .count {
            color: var(--gray-3);
            font-size: 12px;
            white-space: nowrap;
        }

        

        .mask-list {
            margin-top: 14px;

            border-top: 1px dashed var(--gray-5);
        }

        .mask-item {
            display: flex;
            align-items: center;
            gap: 14px;

            padding: 11px 0;

            border-bottom: 1px dashed var(--gray-5);
        }

        
        .collapse-box {
            display: grid;
            grid-template-rows: 1fr;

            transition: grid-template-rows 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .collapse-box.collapsed {
            grid-template-rows: 0fr;
        }

        .collapse-inner {
            overflow: hidden;
            min-height: 0;

            opacity: 1;
            transition: opacity 0.3s ease;
        }

        .collapse-box.collapsed .collapse-inner {
            opacity: 0;
        }

        .mask-name {
            flex: 1;
            min-width: 0;

            font-size: 13px;
            font-weight: 500;
            color: var(--gray-1);
        }

        .mask-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            object-fit: cover;
            background: var(--gray-6);
            flex-shrink: 0;
        }

        html.dark .mask-icon {
            background: var(--gray-5);
        }

        .mask-count {
            color: var(--gray-3);
            font-size: 12px;
            white-space: nowrap;
        }

        .toggle-wrap {
            padding: 12px 0 0;
        }

        


        

        @media (max-width: 560px) {

            .container {
                width: calc(100% - 36px);
            }

            .page-top {
                padding-top: 42px;
            }

            .item {
                flex-direction: column;
                gap: 10px;
            }

            .item-side {
                flex-direction: row;
                align-items: center;
                width: 100%;
                justify-content: space-between;
            }
        }
            html.dark {
            --white: #14161a;
            --black: #e9e6df;
            --gray-1: #b9b6ae;
            --gray-2: #8f8c84;
            --gray-3: #6f6d66;
            --gray-4: #2e323a;
            --gray-5: #262a31;
            --gray-6: #1d2127;
            --accent: #a8896a;
            --accent-strong: #c09a76;
            --accent-soft: #26221c;
        }

        .theme-toggle {
            position: fixed;
            right: 18px;
            bottom: 18px;
            z-index: 999;

            width: 42px;
            height: 42px;

            display: flex;
            align-items: center;
            justify-content: center;

            border: 1px solid var(--gray-4);
            border-radius: 50%;

            background: var(--gray-6);
            color: var(--black);

            cursor: pointer;

            transition: background 0.15s ease, border-color 0.15s ease;
        }

        .theme-toggle:hover {
            background: var(--gray-5);
        }

        .theme-toggle svg {
            width: 19px;
            height: 19px;

            stroke: currentColor;
            fill: none;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .theme-toggle .i-sun {
            display: none;
        }

        html.dark .theme-toggle .i-sun {
            display: block;
        }

        html.dark .theme-toggle .i-moon {
            display: none;
        }
        html.dark .ext-link {
            border-bottom-color: #4a4238;
        }