/* ---------------------------------------------
*   Custom Properties
--------------------------------------------- */
:root {
    --design-width: 1920;
    --contents-width: 1200;
    --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: #0C1011;
    --color-base-1-rgb: 12, 16, 17;
    --color-black-1: #000;
    --color-black-1-rgb: 0, 0, 0;
    --color-black-2: #3E4F57;
    --color-black-2-rgb: 62, 79, 87;
    --color-black-3: #0C1011;
    --color-black-3-rgb: 12, 16, 17;
    --color-white-1: #fff;
    --color-white-1-rgb: 255, 255, 255;
    --color-white-2: #F3F4F5;
    --color-white-2-rgb: 243, 244, 245;
    --color-blue-1: #005DB4;
    --color-blue-1-rgb: 0, 93, 180;
    --color-blue-2: #003A6F;
    --color-blue-2-rgb: 0, 58, 111;
    --color-blue-3: #0586C1;
    --color-blue-3-rgb: 5, 134, 193;
    --color-blue-4: #E5F5FD;
    --color-blue-4-rgb: 229, 245, 253;
    --color-blue-5: #F2FAFE;
    --color-blue-5-rgb: 242, 250, 254;
    --color-gray-1: #657279;
    --color-gray-1-rgb: 101, 114, 121;
    --color-gray-2: #F9FAFA;
    --color-gray-2-rgb: 249, 250, 250;
    --color-gray-3: #E2E5E6;
    --color-gray-3-rgb: 226, 229, 230;
    --ff-root: "Noto Sans JP", sans-serif;
    --ff-roboto: "Roboto", sans-serif;
}
@media screen and (max-width: 768px) {
    :root {
        --design-width: 375;
        --contents-width: 343;
        --contents-side-padding: 16;
        --minwidth: 320;
        --fixed-header-height: 114;
        --root-fz: 16;
        --line-height: 1.5;
        --fixed-headerScroll-height: 40;
    }
}

/* ---------------------------------------------
*   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%;
}

body {
    min-width: 375px;
    line-height: var(--line-height);
}

/* ---------------------------------------------
*   <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;
}