@charset "utf-8";

/* reset/base */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    display: flex;
    flex-direction: column;
    width: 100%;
    min-width: 320px;
    min-height: 100vh;
    font-family: "Noto Sans JP", Arial, "Helvetica Neue", "Helvetica", "Hiragino Sans", "Arial", "Yu Gothic", "Meiryo", sans-serif;
    font-size: 15px;
    color: #333;
    line-height: 1.5;
    margin: 0 auto;
    overflow-x: hidden;
}

/* =======================
    
    layout(header/main/footer)

    ======================== */
/* header */

.header {
    background: #fff;
    margin: 0 auto;
    padding: 1em 0;
    width: 100%;
    display: flex;
    align-items: center;
    position: fixed;
    box-shadow: 0 0 5px;
    z-index: 100;
    top: 0;
    left: 0;
}

.svg_logo {
    display: block;
    width: 180px;
    height: auto;
    margin-left: 2em;
}

@media screen and (max-width:400px) {
    .svg_logo {
        width: 150px;
    }
}

.nav {
    position: relative;
    margin-left: auto;
}

.nav_toggle {
    display: none;
}

.nav_btn {
    display: block;
    width: 44px;
    height: 44px;
    margin-right: 1.5em;
    position: relative;
    cursor: pointer;
}

.nav_btn span {
    position: absolute;
    left: 10px;
    right: 10px;
    height: 2px;
    background: #000;
    transition: ease .25s;
}

.nav_btn span:nth-child(1) {
    top: 14px;
}

.nav_btn span:nth-child(2) {
    top: 21px;
}

.nav_btn span:nth-child(3) {
    top: 28px;
}

.nav_overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .3);
    opacity: 0;
    pointer-events: none;
    transition: ease opacity .25s;
    z-index: 5;
}

.nav_list {
    background: #fff;
    width: 50%;
    max-width: 420px;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 72px;
    right: 0;
    bottom: 0;
    gap: 0;
    padding: 1em 0;
    opacity: 0;
    transform: translateX(10px);
    pointer-events: none;
    transition: opacity .25s ease, transform .25s ease;
    z-index: 10;
    list-style: none;
}

.list_item {
    font-size: 18px;
    padding: .5em 2em;
}

.nav_toggle:checked~.nav_overlay {
    opacity: 1;
    pointer-events: auto;
}

.nav_toggle:checked~.nav_list {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
    transition-delay: .15s;
}

.nav_toggle:checked+.nav_btn span:nth-child(1) {
    top: 21px;
    transform: rotate(45deg);
}

.nav_toggle:checked+.nav_btn span:nth-child(2) {
    opacity: 0;
}

.nav_toggle:checked+.nav_btn span:nth-child(3) {
    top: 21px;
    transform: rotate(-45deg);
}

.link_item {
    text-decoration: none;
    font-weight: 900;
    color: #333;
}

.link_item::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 100%;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform .3s ease;
}

.link_item:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* main */

main {
    flex: 1;
    width: 100%;
    margin: 0 auto;
    padding: 0;
}

/* fade */

.fade {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity .6s ease, transform .6s ease;
    }

    .fade.is-show {
    opacity: 1;
    transform: translateY(0);
    }

/* footer */

.footer {
    margin-top: 18vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

footer a {
    text-decoration: none;
    color: #333;
    font-weight: 600;
}

.foot_top-link {
    order: 2;
    margin-bottom: 2em;
}

.foot_logo {
    width: 180px;
    display: block;
    text-align: center;
    margin-top: 2em;
}

.site_map {
    display: block;
    text-align: center;
    margin: 0 auto;
    padding-bottom: 2em;
    font-size: 17px;
}

.foot_list {
    margin-bottom: 2em;
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5em;
    justify-items: center;
    order: 1;
}

.foot_item:nth-child(3) {
    grid-column: 1/-1;
    justify-self: center;
}

.foot_link {
    font-size: 20px;
}

.copy {
    text-align: center;
    margin: 0 auto;
    padding: 1em 0;
    width: 100%;
    border-top: 1px solid #ccc;
}

/* ======================
    index.html
======================= */

.hero {
    background-color: rgba(0, 0, 0, .03);
    margin: 10em auto 0;
    padding: 2em 1em;
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 1200px;
    text-align: center;
}

.hero-card {
    background-color: #fff;
    width: 90%;
    height: auto;
    align-items: center;
    margin: 0 auto;
    padding: 2em 0;
    border-radius: 12px;
    box-shadow: 0 14px 20px rgba(0, 0, 0, .14);
}

.hero-role {
    font-size: 20px;
    font-weight: 600;
}

.person-name {
    margin: 20px auto;
}

.hero-copy {
    font-size: 22px;
    font-weight: 700;
    width: 100%;
}

.btn {
    display: block;
    background: #00acee;
    text-decoration: none;
    text-align: center;
    width: 40%;
    min-width: 250px;
    margin: 10px auto 0;
    padding: 10px 20px;
    color: #fff;
    font-size: 17px;
    font-weight: 700;
    border-radius: 50px;
    transition: .4s ease;
    border: 3px solid #00acee;
    box-shadow: 5px 5px 20px rgba(0, 0, 0, .14);
}

.btn:hover,
.btn:focus {
    background-color: #fff;
    color: #00acee;
    box-shadow: none;
}

.works-preview {
    width: min(1200px,100%);
    margin: 3em auto;
}

.section-title {
    text-align: center;
    margin: 1em auto 0;
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px,1fr));
    width: 100%;
    max-width: 1200px;
    margin: 20px auto;
    padding: 0 1em;
    gap: 1.5em;
    align-items: stretch;
}

.work-card {
    padding: 20px 0;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    box-shadow: 0 14px 20px rgba(0, 0, 0, .14);
}

.work-card a {
    display: block;
    text-decoration: none;
    color: #333;
}

.work-card-thumb img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.work-card-info {
    display: flex;
    flex-direction: column;
    gap: 1em;
    padding: .75rem 0;
    text-align: center;
    margin: 20px auto 0;
    padding: 0 1em;
}

.work-cord-tag {
    font-size: 17px;
    font-weight: 600;
}

.work-cord-title {
    font-size: 20px;
    font-weight: 900;
}

.works-preview-footer {
    margin-top: 2em;
}

.cta {
    display: flex;
    flex-direction: column;
    padding: 2em 0;
    text-align: center;
    margin: 0 auto;
    width: 100%;
    max-width: 1200px;
}

.cta-box {
    background-color: #00acee;
    box-shadow: 0 14px 20px rgba(0, 0, 0, .14);
    padding: 20px 1em;
    width: 80%;
    max-width: 750px;
    margin: 0 auto;
}

.cta-txt,
.cta-txt-small {
    font-size: 20px;
    font-weight: 600;
    color: #fff;
}

.cta-txt {
    flex-wrap: nowrap;
}

.cta-txt-small {
    display: none;
}

.call-box {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: flex-start;
}

.call-box img {
    display: block;
    width: 20px;
    height: 20px;
    margin: 10px 5px 0 0;
}

.cta-box a {
    text-decoration: none;
    display: block;
}

.call-number {
    color: #fff;
    font-size: 30px;
    font-weight: 900;
    transition: .4s;
    white-space: nowrap;
}

.call-number:hover,
.call-number:focus {
    color: #ccc;
}

.cta-btn {
    background-color: #fff;
    margin: 0 auto;
    padding: 20px 0;
    width: 90%;
    min-width: 250px;
    color: #00acee;
    font-size: 20px;
    font-weight: 900;
    border: 3px solid #fff;
    transition: .4s ease;
}

.cta-btn:hover,
.cta-btn:focus {
    background-color: #00acee;
    color: #fff;
}

@media screen and (max-width:540px) {
    
    .cta-box {
        width: 100%;
    }

    .cta-txt-small {
        display: block;
    }

    .cta-txt {
        display: none;
    }

    .call-box {
        display: none;
    }

}

@media screen and (min-width:768px) {

    .cta-box {
        display: flex;
        flex-direction: row;
        gap: 2em;
        justify-content: space-between;
        border-radius: 12px;
        min-width: 500px;
    }

    .cta-txt-box {
        margin-left: 3em;
    }

    .cta-btn {
        border-radius: 12px;
        max-width: 300px;
        margin: 0 3em 0 0;
    }


}

/* =======================

section

======================== */

/* ==============

about

================ */

.page {
    margin: 12vh 0 2vh 1vw;
    padding: 0 1em;
    max-width: 1800px;
}

.page_link {
    position: relative;
    text-decoration: none;
    color: #333;
    font-weight: 400;
    margin: 0 1em;
}

.page_link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 100%;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform .3s ease;
}

.page_link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.person {
    box-shadow: 0 18px 25px rgba(0, 0, 0, .08);
    margin: 0 auto 2em;
    width: 90%;
}

.ms_img {
    margin: 10px auto 20px;
    width: 90%;
    min-width: 80%;
    font-size: 30px;
    font-weight: 900;
}

.person_img {
    display: block;
    width: 80%;
    height: auto;
    margin: 30px auto;
    aspect-ratio: 3 / 4;
    object-fit: cover;
}

.role {
    margin: 0 auto;
    font-size: 20px;
    font-weight: 900;
    padding: 0 1em;
}

.person_name {
    text-align: center;
    margin: 0 auto;
    padding: 10px 0 0;
}

.position_box {
    width: 90%;
    text-align: left;
    display: block;
    margin: 0 auto;
}

.position {
    text-align: left;
    display: inline-block;
    margin: 1em auto;
    width: 100%;
    font-size: 17px;
    font-weight: 500;
}

.view-works-link {
    background: #f7f7f7;
    display: block;
    margin: 1em auto;
    padding: 10px 10px;
    width: 100px;
    min-width: 200px;
    font-size: 20px;
    font-weight: 700;
    color: #777;
    text-decoration: none;
    text-align: center;
    border-radius: 7px;
    box-shadow: 5px 5px 2px rgba(0, 0, 0, .14);
    transition: .4s;
}

@media screen and (min-width:768px) {
    
    .view-works-link {
        background: #f7f7f7;
        display: block;
        margin: 1em auto;
        padding: 10px 10px;
        width: 200px;
        min-width: 200px;
        font-size: 20px;
        font-weight: 700;
        color: #777;
        text-decoration: none;
        text-align: center;
        border-radius: 7px;
        box-shadow: 5px 5px 2px rgba(0, 0, 0, .14);
        transition: .4s;
    }

    .view-works-link:hover {
        background: #777;
        color: #fff;
        border-radius: 50px;
        box-shadow: none;
    }

}

.view-works-link:focus {
    background: #777;
    color: #fff;
    border-radius: 50px;
    box-shadow: none;
}

/* skills */

.skills {
    width: 100%;
    text-align: center;
    margin: 0 auto;
}

.skill_span {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px,1fr));
    gap: 3em;
    justify-content: center;
    margin: 0 auto 3em;
    width: 100%;
    max-width: 1800px;
    height: auto;
    align-items: stretch;
}

.skill_msg {
    font-size: 30px;
    text-align: center;
    margin: 0 auto;
    padding-bottom: 1em;
}

.skill_type {
    background: #f7f7f7;
    margin: 0 auto 3em auto;
    padding: 20px 0;
    width: 90%;
    height: auto;
    align-items: stretch;
    text-align: center;
    box-shadow: 0 15px 25px rgba(0, 0, 0, .20);
}

.skill_type-title {
    margin-bottom: 1em;
    font-size: 25px;
    font-weight: 900;
}

.skill-paragraph {
    text-align: center;
    margin: 0 auto 1em auto;
    font-size: 20px;
    font-weight: 600;
}

.skill_set {
    list-style: none;
    display: inline-flex;
    flex-direction: column;
    margin: 0 auto;
    gap: 1em;
}

.skill_item {
    text-align: left;
    font-size: 18px;
    font-weight: 600;
}

.skill_item:last-child {
    margin-bottom: 0;
}

.skill_protocol {
    display: block;
    margin: 2em auto 0 auto;
    padding: 0 1em;
    text-align: left;
    width: 70%;
}

/* .skill_protocol {} */

.mail_about {
    display: block;
    background: #f1f1f1;
    margin: 0 auto;
    padding: 0 1em 20px;
    width: 90%;
    height: auto;
    align-items: stretch;
}

@media screen and (max-width:400px) {
    .mail_about {
        padding: 0 0 20px;
    }
}

picture {
    display: block;
    margin: 0 auto;
    width: 8em;
    padding-top: 2em;
}

.offer_msg-box {
    width: 90%;
    text-align: center;
    margin: 0 auto;
}

.offer_intro {
    display: block;
    text-align: center;
    margin: 20px auto;
    font-size: 30px;
}

.offer_msg {
    text-align: left;
    display: inline-block;
    margin: 0 auto;
    padding-bottom: 20px;
    font-size: 17px;
    width: 90%;
}

.mail_offer {
    background: #fff;
    display: flex;
    align-items: center;
    border: 2px solid #ccc;
    margin: 1em auto;
    width: 250px;
    padding: 10px 0;
    color: #333;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.mail_offer::before {
    content: "";
    position: absolute;
    inset: 0;
    background: #555;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s ease;
    z-index: 0;
}

.mail_offer span,
.mail_offer img {
    position: relative;
    z-index: 1;
}

.mail_offer:hover {
    color: #fff;
}

.mail_offer:hover::before {
    transform: scaleX(1);
}

.mail_offer img {
    width: 30px;
    height: auto;
    margin: 0 15px;
}

.send {
    font-size: 15px;
    font-weight: 600;
}

.mail_offer:hover .mail_img {
    filter: brightness(0) invert(1);
}


/* ==========
works 
============ */

.works_character {
    font-size: 30px;
    font-weight: 900;
    margin: 1em auto;
    padding: 0 1em;
}

.work_desc {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 3em;
    align-items: stretch;
}

.video_section {
    margin: 0 auto;
    padding-bottom: 20px;
    width: 100%;
    height: auto;
}

.video_box {
    width: 100%;
    aspect-ratio: 16 / 9;
    position: relative;
}

.time_code {
    background: rgba(0, 0, 0, .5);
    width: fit-content;
    margin-top: 10px;
    padding: 5px 10px;
    color: #fff;
}

.video_title {
    text-align: center;
    margin: 1em auto;
    font-size: 25px;
    font-weight: 800;
}

.explanation {
    text-align: left;
    display: inline-block;
    margin: 1em auto;
    padding: 0 1em;
}

.pr_li {
    display: block;
    text-align: left;
    display: block;
    margin: 0 20px;
    padding: 0 1em;
}

.pr_li dt {
    border-bottom: 2px solid #00acee;
    width: fit-content;
    padding-bottom: 5px;
    font-size: 20px;
    font-weight: 600;
}

.pr_li dd {
    margin: 10px 0;
}

iframe {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
}

.video_box iframe,
.video_box video {
    width: 100%;
    height: 100%;
    display: block;
}

.video-thumb {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    opacity: 1;
    transition: opacity .3s ease;
    will-change: opacity;
}

.video-thumb.is-hidden {
    opacity: 0;
    display: none;
    pointer-events: none;
}

.video_box:hover .video-thumb {
    opacity: 0;
}

.summary {
    display: flex;
    flex-direction: column;
    width: 100%;
    margin: 3em auto;
    padding: 2em 0;
}

.summary-title {
    margin: 0 0 1em 1em;
}

.summary-grid {
    display: block;
    margin: 2em auto;
    width: 100%;
}

.summary-box {
    display: block;
    margin: 0 auto;
    padding: 2em 0;
    height: auto;
}


.summary-sub-title {
    display: block;
    text-align: center;
    margin: 1em auto;
    padding-bottom: 20px;
    font-size: 25px;
    font-weight: 900;
}

.summary-img {
    display: block;
    margin: 0 auto;
    width: 100%;
    height: auto;
    box-shadow: 0 5px 20px rgba(0, 0, 0, .20);
}

.summary-txt-wrap {
    width: 90%;
    padding: 0 1em;
    text-align: left;
    display: block;
    margin: 0 auto;
}

.summary-label {
    text-align: left;
    display: block;
    font-size: 20px;
    font-weight: 600;
    padding: 5px 0;
    border-bottom: 3px solid #00acee;
    width: fit-content;
}

.summary-txt {
    text-align: left;
    display: block;
    margin: 1em 0;
}

.lp-link {
    background: #00acee;
    color: #fff;
    display: block;
    margin: 3em auto 1em auto;
    width: min(400px,80%);
    padding: 20px 10px;
    text-decoration: none;
    text-align: center;
    font-size: 20px;
    font-weight: 900;
    border-radius: 10px;
    box-shadow: 5px 5px 5px #333;
    transition: .4s ease;
    border: 2px solid #00acee;
}

.lp-link:hover {
    background: #fff;
    color: #00acee;
    box-shadow: none;
}

.card {
    background: #fff;
    display: block;
    width: 100%;
    box-shadow: 0 5px 16px rgba(0, 0, 0, .08);
}

/* =================

contact

=================== */

.contact {
    padding: 0 2em;
}

.mail_protocol {
    margin-left: 3em;
    padding: 0 3em;
    width: 80%;
    min-width: 100px;
    text-align: left;
    display: inline-block;
}

.catch {
    margin-top: .5em;
    font-size: 30px;
    font-weight: 900;
    padding: 0 1em;
}

/* form */

.form {
    margin: 0 auto;
}

.contact_form {
    width: 100%;
    background: #ccc;
    margin: 2em auto;
    width: min(680px,92%);
    padding-bottom: 1em;
    border-radius: 10px;
}

.form_style {
    margin: 0 auto;
    padding: 1em;
    display: flex;
    flex-direction: column;
}

.form_title {
    margin: 0 auto 20px auto;
    width: 50px;
    min-width: 55%;
    text-align: center;
    font-size: 1.8rem;
    font-weight: 800;
    border-bottom: 3px solid #00acee;
    padding-bottom: 0.4em;
}

@media screen and (min-width:390px) {
    .form_title {
        margin: 0 auto 20px auto;
        width: 50px;
        min-width: 70%;
        text-align: center;
        font-size: 1.8rem;
        font-weight: 800;
        border-bottom: 3px solid #00acee;
        padding-bottom: 0.4em;
    }
}

.form_field {
    text-align: left;
    display: inline-block;
}

.label-protocol,
.radio-protocol {
    text-align: left;
    margin: 0 0 .8em 0em;
    font-size: 1.2em;
    font-weight: 500;
}

.area-protocol {
    text-align: left;
    margin: 1.2em 0 .8em 0em;
    font-size: 1.2em;
    font-weight: 500;
}

.req {
    color: #f00;
    font-size: 0.8rem;
    margin-left: 0.4em;
}

.req-nth {
    color: #333;
    font-size: 0.8rem;
    margin-left: 0.4em;
}

.select,
.input-name,
.input-mail,
.area {
    width: 100%;
    min-width: 100px;
    padding: 10px 0;
    border-radius: 7px;
    border: none;
    margin: 0 auto 20px auto;
}

.error {
    opacity: 0;
    margin-bottom: 10px;
    font-weight: 500;
    visibility: hidden;
    color: #f00;
    transition: .2s;
    min-height: 1.1em;
}

.error.show {
    opacity: 1;
    visibility: visible;
}

/* radio */

input[type="radio"] {
    display: inline-flex;
    transform: scale(1.5);
    z-index: 1;
}

.gender {
    font-size: 1.2em;
    font-weight: 500;
}

.male {
    margin-right: 20px;
}

a,
select,
input,
textarea {
    cursor: pointer;
}

/* radio ----- / */

.button {
    width: 100%;
    display: block;
    margin: 1.8em auto 0;
    padding: .8em 2.6em;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    box-shadow: 5px 5px 1px #555;
}

.button:hover {
    background: #00acee;
    color: #fff;
    transition: ease .25s;
    box-shadow: none;
}

.contact_border {
    border-bottom: 1px solid rgba(0, 0, 0, .1);
    margin-top: 2em;
    width: 100%;
    max-width: 1920px;
}

/* =======================
    
    breakpoints（min-width:768px）

    ======================== */

@media screen and (min-width:768px) {

    /* header */

    .header {
        background: #fff;
        display: flex;
        justify-content: space-between;
        padding: 1.2em 0;
        width: 100%;
        position: fixed;
        z-index: 100;
        align-items: center;
        top: 0;
        left: 0;
    }

    .svg_logo {
        width: 200px;
        margin-left: 3em;
    }

    .nav_toggle {
        display: none;
    }

    .nav_btn {
        display: none;
    }

    .nav_overlay {
        display: none;
    }

    .nav_list {
        position: static;
        opacity: 1;
        transform: none;
        pointer-events: auto;
        flex-direction: row;
        width: auto;
        gap: 3em;
        background: transparent;
        list-style: none;
        padding: 0;
    }

    .list_item {
        padding: 0;
    }

    .list_item:last-child {
        padding-right: 3em;
    }

    .link_item {
        position: relative;
        font-weight: 900;
        font-size: 20px;
        color: #333;
    }

    .link_item::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: -1px;
        width: 100%;
        height: 1px;
        background: currentColor;
        transform: scaleX(0);
        transform-origin: right;
        transition: transform .3s ease;
    }

    .link_item:hover::after {
        transform: scaleX(1);
        transform-origin: left;
    }

    /* #main */

    main {
        flex: 1;
        width: 100%;
        margin: 0 auto;
        padding: 0 1em;
    }

    /* section */

    /* about-page */

    .page {
        margin: 15vh 0 0 3em;
        padding: 0 1em;
    }

    /* .page_link {} */

    .ms_img {
        font-size: 40px;
        width: 100%;
        text-align: left;
        padding: 0;
        margin: 10px 0 ;
    }

    .person-box {
        display: flex;
        flex-direction: column;
        margin: 0 auto;
    }

    .person {
        background: #fbfbfb;
        display: inline-flex;
        flex-direction: row;
        margin: 2em auto 20px;
        padding: 20px 0;
        justify-content: center;
        align-items: center;
        text-align: left;
        width: 100%;
        max-width: 1800px;
        box-shadow: 0 12px 20px rgba(0, 0, 0, .1);
    }

    .person_img {
        width: 300px;
        margin: 0 3em;
    }

    .role_box {
        text-align: left;
        display: block;
    }

    .role {
        font-size: 30px;
        font-weight: 600;
        padding: 0;
    }

    .person_name {
        text-align: left;
        font-size: 40px;
        font-weight: 900;
    }

    .position_box {
        display: inline-block;
        width: 100%;
    }

    .position {
        font-size: 20px;
        font-weight: 500;
        line-height: 2;
    }

    /* ==========
    skills
    ========== */

    .skill_msg {
        font-size: 40px;
        font-weight: 900;
    }

    .skill_type {
        background: #f7f7f7;
        width: 100%;
        min-width: 300px;
        margin: 0 auto;
        padding: 2em 0;
        border-radius: 10px;
        box-shadow: 0 8px 20px rgba(0, 0, 0, .14);
    }

    .skill_type-title {
        text-align: center;
        margin: 10px auto 20px auto;
        font-size: 30px;
    }

    .skill_item {
        font-size: 20px;
        font-weight: 600;
    }

    /* mail_about */

    .mail_about {
        display: flex;
        align-items: center;
        gap: 5em;
        width: 50%;
        height: auto;
        padding: 4em 0;
        min-width: 600px;
    }

    picture source {
        display: none;
    }

    .mail_about-img {
        display: block;
        margin: 0 50px;
        width: 180px;
    }

    .offer_msg-box {
        text-align: left;
        justify-content: center;
        margin-left: 6em;
    }

    .offer_intro {
        text-align: left;
    }

    .offer_msg {}

    .mail_offer {
        display: flex;
        text-align: left;
        justify-content: start;
        margin-top: 20px;
    }

    /* works-page */

    .works_character {
        font-size: 30px;
        font-weight: 900;
        margin: 1em 0 0 2em;
    }

    .work_desc {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px,1fr));
        width: min(1100px,90%);
        margin: 2em auto;
        gap: 5em;
        align-items: stretch;
        
    }

    .video_title {
        text-align: center;
        margin: 1em auto;
        font-size: 20px;
        font-weight: 800;
        width: 100%;
    }

    iframe {
        display: block;
        width: 100%;
        height: auto;
        aspect-ratio: 16/9;
        object-fit: cover;
    }

    .video_section {
        min-width: 300px;
        display: flex;
        flex-direction: column;
        padding-bottom: 20px;
        width: 100%;
        height: 100%;
    }

    .video_box {
        width: 100%;
        aspect-ratio: 16 / 9;
        position: relative;
    }

    .time_code {
        width: fit-content;
        background: rgba(0, 0, 0, .5);
        color: #fff;
        padding: 5px 10px;
        margin: 10px 0 0 0;
    }

    .video_box iframe,
    .video_box video {
        width: 100%;
        height: 100%;
        display: block;
    }

    .video-thumb {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        z-index: 1;
        opacity: 1;
        transition: opacity .3s ease;
        will-change: opacity;
    }

    .video-thumb.is-hidden {
        opacity: 0;
        pointer-events: none;
    }

    .video_box:hover .video-thumb {
        opacity: 0;
    }

    .summary-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        justify-content: start;
        width: min(1100px,90%);
        margin: 2em auto;
        gap: 5em;
        align-items: stretch;
    }

    .summary-img {
        display: block;
        margin: 0 auto;
        padding: 0 1em;
        width: 100%;
        height: auto;
    }
    /* contact-page */

    .catch {
        margin: 1em 0 0 2em;
    }

    .contact {
        width: 43vw;
        margin-left: 4em;
        padding: 0 1em;
    }

    .mail_protocol {
        min-width: 700px;
    }

    /* contact_page-form */


    /* footer */

    .footer {
        display: flex;
        justify-content: space-between;
        flex-direction: row;
        align-items: center;
        padding: 1em 0;
        width: 100%;
        margin-top: 4em;
    }
    
    #index-page .footer {
        flex-direction: row-reverse;
        width: 100%;
        align-items: center;
    }
    
    #about-page .footer {
        flex-direction: row-reverse;
    }

    .foot_logo {
        display: block;
        margin-left: 3em;
    }

    .foot_item:last-child {
        grid-column: auto;
    }

    .site_map {
        display: none;
    }

    .foot_list {
        display: inline-flex;
        flex-direction: row;
        justify-content: flex-end;
        gap: 3em;
    }

    .foot-link {
        display: block;
        font-size: 20px;
        font-weight: 900;
    }

    .foot_item:last-child {
        padding-right: 3em;
    }



}