/* ---------------------------------------------
*   Custom Properties
--------------------------------------------- */
:root {
    --design-width: 375;
    --contents-width: 375;
    --contents-side-padding: 10;
    --minwidth: 320;
    --root-fz: 32;
    --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: #382B20;
    --color-black-2-rgb: 56, 43, 32;
    --color-black-3: #595757;
    --color-black-3-rgb: 89, 87, 87;
    --color-black-4: #E6E6E6;
    --color-black-4-rgb: 230, 230, 230;
    --color-black-5: #4D4D4D;
    --color-black-5-rgb: 77, 77, 77;
    --color-black-6: #2E0B0E;
    --color-black-6-rgb: 46, 11, 14;
    --color-brown-1: #763B2F;
    --color-brown-1-rgb: 118, 59, 47;
    --color-brown-2: #D0A33D;
    --color-brown-2-rgb: 208, 163, 61;
    --color-white-1: #fff;
    --color-white-1-rgb: 255, 255, 255;
    --color-red-1: #FB0000;
    --color-red-1-rgb: 251, 0, 0;
    --color-orange-1: #F4AA34;
    --color-orange-1-rgb: 244, 170, 52;
    --color-orange-2: #F49600;
    --color-orange-2-rgb: 244, 150, 0;
    --color-orange-3: #FA9100;
    --color-orange-3-rgb: 250, 145, 0;
    --color-orange-4: #FFD368;
    --color-orange-4-rgb: 255, 211, 104;
    --color-pink-1: #FFA6B1;
    --color-pink-1-rgb: 255, 166, 177;
    --color-pink-2: #EF4A5F;
    --color-pink-2-rgb: 239, 74, 95;
    --color-pink-3: #FFD0D0;
    --color-pink-3-rgb: 255, 208, 208;
    --color-pink-4: #FFC9C8;
    --color-pink-4-rgb: 255, 201, 200;
    --color-pink-5: #FFEAE5;
    --color-pink-5-rgb: 255, 234, 229;
    --color-pink-6: #F5929F;
    --color-pink-6-rgb: 245, 146, 159;
    --color-pink-7: #FFB0B7;
    --color-pink-7-rgb: 255, 176, 183;
    --color-pink-8: #FFF3F3;
    --color-pink-8-rgb: 255, 243, 243;
    --color-green-1: #87DCAC;
    --color-green-1-rgb: 135, 220, 172;
    --color-green-2: #CEEE86;
    --color-green-2-rgb: 206, 238, 134;
    --color-green-3: #E4EE9C;
    --color-green-3-rgb: 228, 238, 156;
    --color-green-4: #3D9943;
    --color-green-4-rgb: 61, 153, 67;
    --color-green-5: #FFFFBE;
    --color-green-5-rgb: 255, 255, 190;
    --color-green-6: #3B7843;
    --color-green-6-rgb: 59, 120, 67;
    --color-yellow-1: #FFFF00;
    --color-yellow-1-rgb: 255, 255, 0;
    --color-yellow-2: #FFF5B2;
    --color-yellow-2-rgb: 255, 245, 178;
    --ff-root: "Noto serif JP", serif;
    --ff-ZenKakuGothicNew: "Zen Kaku Gothic New", sans-serif;
    --ff-sans: "Noto sans JP", sans-serif;
}
@media print, screen and (min-width: 751px) {
    :root {
        --contents-width-pc: 430;
        --root-fz: 16;
    }
}

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

::-moz-selection {
    background-color: var(--color-green-4);
    color: var(--color-green-5);
}

::selection {
    background-color: var(--color-green-4);
    color: var(--color-green-5);
}

/* ---------------------------------------------
*   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: 750px) {
    html,
    body {
        font-size: calc(var(--root-fz) / var(--design-width) * 100vw);
        overflow-x: hidden;
    }
}

body {
    min-width: calc(var(--minwidth) * 1px);
    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;
}