.top-hgroup {
    display: flex;
    align-items: baseline;
    gap: 12px;
    border-bottom: #1993C9 2px solid;
}
.contents {
    max-width: 1100px;
    margin: 40px auto;
}

.to-tools .content-list h3,.to-tools .content-list li p {
    margin: 0;
}

.top-hgroup p {
    font-size: clamp(32px,6vw,56px);
}

.top-hgroup h2 {
    border-top: none;
    margin: 0;
    padding: 0;
}

.top-hgroup h2::before {
    display: none;
}

main .btn-1 {
    margin: 1em auto;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    width: min(80%, 220px);
}

main .btn-1::after {
    content: "";
    background: url(arrow-2.svg) no-repeat;
    min-width: 16px;
    height: 8px;
    display: block;
}

main .btn-1 p {
    margin: 0;
}

.about-img,.tools-img {
    max-width: 320px;
    margin: 1em auto;
}

/*****************
fv
******************/
.fv {
    height: 60vh;
    width: calc(100% + 40px);
    margin-left: -20px;
    position: relative;
}

.slideshow {
	overflow: hidden;
	position: relative;
    width: 100%;
    height: 100%;
}

.slideshow_body {
	overflow: hidden;
	position: relative;
    width: 100%;
    height: 100%;
}

.slideshow_body li {
	width: 100%;
	height: 100%;
	position: absolute;
	z-index: 0;
}

.slideshow_body li img {
	position: absolute;
	object-fit: cover;
	object-position: 50% 50%;
    height: 100%;
}

.slideshow_body li img.fv-fibc {
    object-position: 15% 50%;
}

.fv .fv-text {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: 1em auto;
    z-index: 22;
    padding: 0 20px;
    color: #fff;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 100%;
    box-sizing: border-box;
    max-width: 1100px;
}

.fv .fv-text h1 {
    border-top: 4px solid #fff;
    margin: 0;
    font-weight: 500;
    font-size: clamp(32px,5vw,48px);
    padding: 12px 8px;
}

.fv .fv-text p {
    border-bottom: 1px solid #fff;
    margin: 0;
    font-weight: 500;
    font-size: clamp(14px,3vw,20px);
    padding: 12px 8px;
}

@media(min-width:640px){    
    .fv .fv-text {
        margin: 2.5em auto;
    }
}

@media(min-width:868px){    
    body {
        margin-top: 95px;
    }
}

/****************
to-about-us
*****************/
.to-about-us h2 {
    color: #000;
    font-size: clamp(22px,4.5vw,40px);
    border: none;
    padding: 0;
}

.to-about-us h2::before {
    background: url(diamond.svg) no-repeat;
    width: 0.8em;
    max-width: unset;
    height: unset;
    aspect-ratio: 1;
    top: -0.8em;
    left: -1%;
    z-index: 0;
    background-size: contain;
    display: block;
}


@media(min-width:640px){
    .to-about-us {
        display: flex;
        align-items: center;
        gap: 2%;
    }

    .to-about-us .about-us-wr {
        width: 49%;
    }

    .to-about-us .about-img {
        width: 49%;
    }
}

@media(min-width:1170px){
    .to-about-us h2::before {
        left: -0.8em;
    }
}

/*****************
to-tools
******************/
.contents {
    position: relative;
    max-width: 1000px;
    margin: 40px auto 0;
}

.contents .inner > img {
    aspect-ratio: 3/1;
    width: 100%;
    border-radius: 6px;
    object-fit: cover;
    top: 0;
}

.to-tools .content-list h3,.to-tools .content-list li p {
    margin: 0;
}
.to-tools .tools-wr {
    z-index: 10;
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
}

.to-tools .content-list {
    background-color: #fff;
    border-radius: 20px;
    padding: 10px 20px;
    margin: 24px 0 0;
}

.to-tools .content-list li h3 {
    font-size: clamp(18px,4vw,24px);
}

.to-tools .slider {
    overflow-x: hidden;
    width: calc(100% + 40px);
    height: auto;
    min-height: 140px;
    margin-left: -20px;
}

.to-tools .slider ul {
    display: flex;
    animation: scroll-left 50s 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%); }
}

.to-tools .slider ul li img {
    display: block;
    width: 100px;
}

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

.to-tools .slider 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); }
}

.to-tools .slider hgroup {
    margin-top: 0;
}

.to-tools .content-list li .imgs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin: 1em auto;
}

.to-tools .content-list li .imgs img {
    width: min(48%, 180px);
}

.to-works {
    margin-top: 60px;
}
.to-tools .content-list .btn-1 {
    gap: 8px;
}

@media(min-width:640px){
    .to-tools .tools-wr {
        display: flex;
        gap: 2%;
    }

    .to-tools .tools-inner {
        width: 49%;
    }

    .to-tools .tools-img {
        max-width: 480px;
    }

    .to-tools .content-list {
        width: 49%;
    }
}
/*************
.to-works
*************/
.to-works .works-img {
    aspect-ratio: 3/2;
    max-width: 480px;
    border-radius: 6px;
    object-fit: cover;
    margin: 1em auto;
}

.to-works .content-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.to-works .content-list li a {
    display: flex;
    align-items: center;
    gap: 1%;
}

.to-works .content-list li a > img {
    border-radius: 6px;
    width: 40%;
    aspect-ratio: 3 / 2;
    object-fit: cover;
}

.to-works .content-list h3 {
    width: 59%;
    margin: 0;
}

.to-works .content-list .head-wr {
    font-size: clamp(14px,3.5vw,16px);
    color: #000;
}

.to-works .content-list .head-wr .highlight {
    font-size: clamp(18px,4.5vw,24px);
}

.to-works .content-list h3 img {
    background: #1993C9;
    width: clamp(24px,10%,32px);
    aspect-ratio: 1;
    border-radius: 50%;
    margin: 0 0 0 auto;
    padding: 4px;
}

.content-inner {
    max-width: 1000px;
    margin: 2em auto;
}

.content-inner .contents {
    margin-top: 2em;
}

@media(min-width:640px) {
    .to-works {
        display: flex;
        align-items: flex-start;
        flex-direction: row-reverse;
        justify-content: center;
        gap: 2%;
    }

    .to-works .works-inner,.to-works .wrapper {
        width: 49%;
    }

    .to-works .top-hgroup {
        margin-top: 0;
    }

    .content-inner {
        display: flex;
        gap: 2%;
        max-width: 1000px;
        margin: 1em auto;
    }

    .content-inner .contents {
        width: 49%;
    }

    .content-inner .contents .inner {
        flex-direction: column;
        align-items: center;
    }

    .content-inner .contents .inner img {
        width: 90%;
        aspect-ratio: 3/1;
    }
}

@media(min-width:881px) {
    .to-works .content-list li a {
        flex-direction: column;
        max-width: 200px;
    }

    .to-works .content-list li a > img,.to-works .content-list h3 {
        width: 100%;
    }
}

/**********
to-structures
*************/
.to-structures .btn-1 {
    margin: 1em 0;
}

.to-structures .structures-img {
    aspect-ratio: 3/2;
    max-width: 480px;
    object-fit: cover;
    margin: 1em auto;
}

@media(min-width:640px) {
    .to-structures {
        display: flex;
        align-items: center;
        gap: 1%;
    }

    .to-structures .structures-wr {
        width: 40%;
    }

    .to-structures .structures-img {
        width: 59%;
        max-width: unset;
    }
}