/* ---------------------------------------------
*   Custom Properties
--------------------------------------------- */
:root {
    --design-width: 1300;
    --contents-width: 1100;
    --contents-side-padding: 10;
    --minwidth: calc(var(--contents-width) + var(--contents-side-padding) * 2);
    --fixed-header-height: 80;
    --root-fz: 16;
    --line-height: 1.5;
    --hover-opacity-ratio: 0.8;
    --hover-duration: .3s;
    --color-base-1: #000;
    --color-base-1-rgb: 0, 0, 0;
    --color-black-1: #000;
    --color-black-1-rgb: 0, 0, 0;
    --color-black-2: #001419;
    --color-black-2-rgb: 0, 20, 25;
    --color-black-3: #231815;
    --color-black-3-rgb: 35, 24, 21;
    --color-white-1: #fff;
    --color-white-1-rgb: 255, 255, 255;
    --color-white-2: #fefefe;
    --color-white-2-rgb: 254, 254, 254;
    --color-white-3: #F3F4F0;
    --color-white-3-rgb: 243, 244, 240;
    --color-white-4: #F5F5F5;
    --color-white-4-rgb: 245, 245, 245;
    --color-gray-1: #898989;
    --color-gray-1-rgb: 137, 137, 137;
    --color-gray-2: #5F5F5F;
    --color-gray-2-rgb: 95, 95, 95;
    --color-gray-3: #B1B1B1;
    --color-gray-3-rgb: 177, 177, 177;
    --color-gray-4: #EEEEEE;
    --color-gray-4-rgb: 238, 238, 238;
    --color-gray-5: #949494;
    --color-gray-5-rgb: 148, 148, 148;
    --color-gray-6: #7A7A7A;
    --color-gray-6-rgb: 122, 122, 122;
    --color-gray-7: #7A7A7B;
    --color-gray-7-rgb: 122, 122, 123;
    --color-gray-8: #5E5E5E;
    --color-gray-8-rgb: 94, 94, 94;
    --color-gray-9: #c8d1d1;
    --color-gray-9-rgb: 200, 209, 209;
    --color-yellow-1: #FFFF1C;
    --color-yellow-1-rgb: 255, 255, 28;
    --color-orange-1: #DD8000;
    --color-orange-1-rgb: 221, 128, 0;
    --color-orange-2: #fbe3d3;
    --color-orange-2-rgb: 251, 227, 211;
    --color-red-1: #FF4D00;
    --color-red-1-rgb: 255, 77, 0;
    --color-blue-1: #00618D;
    --color-blue-1-rgb: 0, 97, 141;
    --color-blue-2: #85B2C8;
    --color-blue-2-rgb: 133, 178, 200;
    --color-blue-3: #E5EBEB;
    --color-blue-3-rgb: 229, 235, 235;
    --color-blue-4: #375DA1;
    --color-blue-4-rgb: 55, 93, 161;
    --color-blue-5: #d0dcdc;
    --color-blue-5-rgb: 208, 220, 220;
    --color-item-1-1: #FFFF1C;
    --color-item-1-1-rgb: 255, 255, 28;
    --color-item-1-2: #7A7900;
    --color-item-1-2-rgb: 122, 121, 0;
    --color-item-2-1: #80D30F;
    --color-item-2-1-rgb: 128, 211, 15;
    --color-item-2-2: #00A814;
    --color-item-2-2-rgb: 0, 168, 20;
    --color-item-2-1: #80D30F;
    --color-item-2-1-rgb: 128, 211, 15;
    --color-item-3-1: #DE8672;
    --color-item-3-1-rgb: 222, 134, 114;
    --color-item-3-2: #FF8672;
    --color-item-3-2-rgb: 255, 134, 114;
    --color-item-3-3: #EE8170;
    --color-item-3-3-rgb: 238, 129, 112;
    --color-item-4-1: #90319E;
    --color-item-4-1-rgb: 144, 49, 158;
    --color-item-4-2: #AC9AFF;
    --color-item-4-2-rgb: 172, 154, 255;
    --color-item-4-3: #9A42FF;
    --color-item-4-3-rgb: 154, 66, 255;
    --color-item-5-1: #00A2FF;
    --color-item-5-1-rgb: 0, 162, 255;
    --color-item-5-2: #1F9DBA;
    --color-item-5-2-rgb: 31, 157, 186;
    --color-item-5-3: #3A80FF;
    --color-item-5-3-rgb: 58, 128, 255;
    --color-label-1: #3466DC;
    --color-label-1-rgb: 52, 102, 220;
    --color-label-2: #106284;
    --color-label-2-rgb: 16, 98, 132;
    --color-label-3: #CE5A00;
    --color-label-3-rgb: 206, 90, 0;
    --color-label-4: #747474;
    --color-label-4-rgb: 116, 116, 116;
    --color-label-5: #41823A;
    --color-label-5-rgb: 65, 130, 58;
    --color-text-1: #DE8672;
    --color-text-1-rgb: 222, 134, 114;
    --color-sample-1: #9b2019;
    --color-sample-1-rgb: 155, 32, 25;
    --color-sample-2: #223a70;
    --color-sample-2-rgb: 34, 58, 112;
    --ff-root: "Noto Sans JP", "Roboto", sans-serif;
    --ff-noto: "Noto Sans JP", sans-serif;
    --ff-roboto: "Roboto", sans-serif;
}
@media screen and (max-width: 1024px) {
    :root {
        --design-width: 750;
        --contents-width: 650;
        --contents-side-padding: 50;
        --minwidth: 320;
        --fixed-header-height: 60;
        --root-fz: 32;
        --line-height: 1.5;
    }
}

/* ---------------------------------------------
*   Universal selector
--------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
}

/* ---------------------------------------------
*   html, body
--------------------------------------------- */
html,
body {
    color: var(--color-base-1);
    font-size: calc(var(--root-fz) * 1px);
    font-family: var(--ff-root);
    -webkit-text-size-adjust: 100%;
}
@media screen and (max-width: 1024px) {
    html,
    body {
        font-size: calc(var(--root-fz) / var(--design-width) * 100vw);
    }
}

body {
    line-height: var(--line-height);
    background-color: var(--color-black-1);
}

.top {
    height: 100dvh;
    overflow-y: hidden;
}
@media screen and (max-width: 1024px) {
    .top {
        height: initial;
        overflow-y: initial;
    }
}
.top.is-scrolling {
    touch-action: none;
}
.top:has(.is-noscroll) {
    overflow: hidden;
}

/* ---------------------------------------------
*   <a> tag
--------------------------------------------- */
a {
    color: inherit;
    text-decoration: none;
    cursor: pointer;
}

/* ---------------------------------------------
*   <img> tag
--------------------------------------------- */
img {
    max-width: 100%;
    height: auto;
    vertical-align: bottom;
}

/* ---------------------------------------------
*   <hr> tag as anchor target
--------------------------------------------- */
hr[id^=anchor-] {
    display: block;
    width: auto;
    height: 0;
    padding: calc(var(--fixed-header-height) * 1px) 0 0 0;
    border: 0;
    margin: calc(var(--fixed-header-height) * -1px) 0 0 0;
    background: 0;
    pointer-events: none;
}