main {
    padding: 0;
}

hgroup,.tools-list,.work-base {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/**************
fv
**************/
.fv .fv-inner {
    overflow-x: hidden;
    width: 100%;
    height: auto;
    min-height: 140px;
}

.fv .fv-inner ul {
    display: flex;
    animation: scroll-left 40s linear infinite;
    width: max-content;
    height: auto;
    align-items: center;
    margin: 0;
    padding: 20px 0;
    list-style: none;
    gap: 10px;
}

@keyframes scroll-left {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.fv ul li img {
    display: block;
    width: 100px;
}

.fv ul li:nth-child(2n-1) img {
    animation: swing2n-1 2s infinite linear;
    rotate: 7deg;
}

.fv ul li:nth-child(2n) img {
    animation: swing2n 2s infinite linear;
    rotate: -7deg;
}

@keyframes swing2n-1 {
    0%   { transform: rotate(0deg); }
    25%  { transform: rotate(7deg); }
    50%  { transform: rotate(0deg); }
    75%  { transform: rotate(-7deg); }
    100% { transform: rotate(0deg); }
}

@keyframes swing2n {
    0%   { transform: rotate(0deg); }
    25%  { transform: rotate(-7deg); }
    50%  { transform: rotate(0deg); }
    75%  { transform: rotate(7deg); }
    100% { transform: rotate(0deg); }
}

.fv hgroup {
    margin-top: 0;
}

@media(min-width:640px) {
    .fv ul li img {
        width: 120px;
    }
}
/******************
tools-list
*******************/
h2::before {
    max-width: 1000px;
}

.tools-list > div {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
    margin-bottom: 4em;
}

.tools-list > div::after {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.7);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 1;
}

.tools-list > div.active::after {
    opacity: 1;
}

.tools-list > div button,.tools-list > div .popup-content {
    width: clamp(136px, 48%, 240px);
    border-radius: 10px;
    box-sizing: border-box;
    height: fit-content;
}

.tools-list > div button img,.tools-list > div .popup-content img {
    object-fit: contain;
}

.tools-list > div .popup {
    background: url(../footer-back.png);
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    border: 1px solid #333;
    position: relative;
    padding: 0;
}

.tools-list > div .popup .tool-img {
    padding: 4px;
    box-sizing: border-box;
    margin: auto;
    height: 60%;
}

.tools-list > div .popup p {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 6px 0;
    margin: 0;
    border-bottom-left-radius: 10px;
    border-bottom-right-radius: 10px;
    font-size: clamp(14px,2.5vw,22px);
}

.tools-list > div .popup .check {
    width: 48px;
    aspect-ratio: 1;
    position: absolute;
    right: 0;
    bottom: 48px;
}

.tools-list > div .popup-content {
    border: 1px solid #1993C9;
    display: none;
    background-color: #fff;
}

.tools-list > div.active .popup-content {
    width: min(95%, 1000px);
    z-index: 2;
    max-height: 400px;
    height: 100vh;
    box-sizing: border-box;
    padding: 10px;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    overflow-y: hidden;
}

.tools-list > div.active .popup-content.active {
    display: block;
}

.tools-list > div .popup-content .popup-inner {
    overflow-y: auto;
    overscroll-behavior-y: contain;
    height: 100%;
    position: relative;
}

.tools-list > div .popup-content .close-btn {
    position: absolute;
    top: 0;
    right: 0;
    width: 60px;
    aspect-ratio: 1;
    z-index: 10;
}

.tools-list > div .popup-content .item,.work-base .member p {
    padding: 6px 12px;
    background-color: #1993C9;
    color: #fff;
    width: fit-content;
}

@media(min-width:640px) {
    .tools-list > div .popup .check {
        width: 72px;
        bottom: 27%;
    }
    .tools-list > div.active .popup-content {
        padding: 24px;
    }

    .tools-list > div .popup-content .popup-inner{
        display: flex;
        gap: 20px;
    }

    .tools-list .popup-inner .popup-content-wr {
        width: min(50%,480px);
    }

    .tools-list .popup-content .popup-inner > img:not(.close-btn) {
        width: 50%;
    }
}
/******************
work-base
******************/
.work-base {
    max-width: 1000px;
    margin: 0 auto;
}

.work-base .navi {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
}

.work-base .navi li {
    width: clamp(136px, 48%, 240px);
    aspect-ratio: 3/2;
    background: linear-gradient(to bottom,rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.5)),url(m01.jpg);
    background-size: cover;
}

.work-base .navi li:nth-child(2) {
    background: linear-gradient(to bottom,rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.5)), url(s01.jpg);
    background-size: cover;
} 

.work-base .navi li:nth-child(3) {
    background: linear-gradient(to bottom,rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.5)),url(sm01.jpg);
    background-size: cover;
} 

.work-base .navi li:nth-child(4) {
    background: linear-gradient(to bottom,rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.5)),url(a01.jpg);
    background-size: cover;
} 

.work-base .navi li a {
    color: #fff;
    text-shadow: 0 0 4px #000;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    padding: 4px 10px;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    font-weight: bold;
}

.work-base .navi li a img {
    aspect-ratio: 1;
    width: 40px;
}

.work-base .content {
    margin: 60px 0;
}

.work-base .content li {
    scroll-margin-top: 100px;
    margin: 3em auto;
}

.work-base .content .member img {
    aspect-ratio: 3/4;
    max-width: 240px;
    margin: 0 auto;
    object-fit: cover;
}

.work-base .content .content-wr h3 {
    color: #1993C9;
    margin-top: 1.5em;
    display: list-item;
    padding-left: 1.25em;
    margin-left: 1em;
    padding-left: 4px;
}

.work-base .content .content-wr h3::marker {
    content: "●";
    width: 1em;
}

.work-base .content .imgs {
    display: flex;
    gap: 1%;
    justify-content: center;
    width: 100%;
}

.work-base .content .imgs img {
    object-fit: contain;
    width: 50%;
    max-width: 360px;
}

.work-base .content-wr > img {
    max-width: 360px;
    margin: 1em auto;
}

@media(min-width:640px) {
    .work-base .content .member img {
        margin: -32px 0 0 1em;
        z-index: -1;
        position: relative;
    }

    .work-base .content li {
        display: flex;
        gap: 28px;
        justify-content: center;
    }

    .work-base .content .content-wr {
        width: 50%;
    }    
}

/** footer img **/
.next-page {
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.5)),url(work.jpg);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}