.sec_about {
    padding-top: 60px;
    padding-bottom: 220px;
}


h3 {
    font-weight: 700;
    line-height: 1.8;
    letter-spacing: 0.04em;
    font-size: 3.2rem;
}

h3 span {
    font-family: "Public Sans", sans-serif;
    font-weight: 700;
    font-size: 2rem;
    color: #2953D3;
    display: block;
    letter-spacing: 0.02em;
}

h4 {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.8;
    letter-spacing: 0.05em;
    color: #2953D3;
    margin-bottom: 0.5em;
}



/******************************
*        メインビジュアル        *
******************************/

.mv {
    position: relative;
    width: 100%;
    padding: 0 80px;
    margin: 0 auto;
    max-width: 1800px;
}

.mv_left {
    width: 64%;
}

.mv_right {
    width: 32%;
    display: flex;
    flex-direction: column;
    justify-content: end;
}

.mv_image_l {
    overflow: hidden;
    height: 36vw;
    max-height: 700px;
}

.mv_image_l img {
    object-fit: cover;
    width: 100%;
    height: 100%;
}

.mv_catch {
    position: absolute;
    left: 10%;
    top: 22%;
    z-index: 2;
}

.mv_img {
    width: 94%;
    text-align: right;
    margin: 0 0 0 auto;
}

.mv_image_s {
    position: relative;
    z-index: 1;
    width: 100%;
}


.illust_wrap {
    width: 60%;
    margin: 0 0 0 auto;
    display: flex;
    flex-wrap: nowrap;
    align-items: flex-end;
    justify-content: flex-end;
}

/* ────────── 自転車 ────────── */
.illust_wrap .mv_bicycle {
    width: 48%;
    margin-right: 10px;
    animation: bicycle-slide-in-left 1.8s cubic-bezier(.25, .8, .25, 1) forwards;
    will-change: transform;
}

@keyframes bicycle-slide-in-left {
    0% {
        transform: translateX(-120%) rotate(-4deg);
    }

    75% {
        transform: translateX(6%) rotate(2deg);
    }

    100% {
        transform: translateX(0) rotate(0deg);
    }
}

/* ==== 人物が下からぴょこっと出現（出てきたまま消えない）==== */
.yokoyama_01 {
    z-index: 0;
    transform: translateY(100%) scale(0.8);
    opacity: 0;
    animation: person-pop-up 0.9s cubic-bezier(.42, 0, .2, 1.2) 1.3s forwards;
    will-change: transform, opacity;
}

@keyframes person-pop-up {
    0% {
        transform: translateY(100%) scale(0.8);
        opacity: 0;
    }

    60% {
        transform: translateY(-10%) scale(1.05);
        opacity: 1;
    }

    80% {
        transform: translateY(4%);
    }

    100% {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}


h2 {
    font-size: 32px;
    font-weight: 700;
    margin-top: 40px;
}

h2 span {
    color: #2953D3;
}

@media screen and (min-width: 1600px) {
    h2 {
        font-size: 4.2rem;
    }
}

.neumorphism {
    background-color: #EFF0F2;
    box-shadow: 1px 1px 2px 0px rgba(249, 250, 252, 0.30) inset,
        -1px -1px 2px 0px rgba(229, 230, 232, 0.50) inset,
        -5px 5px 10px 0px rgba(229, 230, 232, 0.20),
        5px -5px 10px 0px rgba(229, 230, 232, 0.20),
        -5px -5px 10px 0px rgba(249, 250, 252, 0.90),
        5px 5px 13px 0px rgba(229, 230, 232, 0.90);
}

.mv .neumorphism {
    color: #2953D3;
    font-weight: 700;
    font-size: 1.8rem;
    position: relative;
    padding: 24px;
    margin-top: 30px;
    text-align: center;
    border-radius: 16px;
    width: 100%;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    opacity: 0;
    animation: neumorphism-fade 1s ease 2.4s forwards;
    text-align: center;
    justify-content: center;
}

.mv .neumorphism img {
    position: absolute;
    top: -40px;
    left: -30px;
    width: 100px;
}


/* === ドローン画像：左から飛来 → 浮遊 === */
.mv .neumorphism img {
    opacity: 0;
    animation:
        drone-slide-in-left 1.2s ease-out 2.6s forwards,
        /* ←左から飛んでくる（2.6s後） */
        drone-float 3s ease-in-out 3.8s infinite;
    /* ←その後ふわふわ（無限） */
    will-change: transform, opacity;
}

/* テキスト全体のふわっとフェードイン */
@keyframes neumorphism-fade {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ドローンが左から飛来して着地 */
@keyframes drone-slide-in-left {
    0% {
        transform: translateX(-120%) translateY(0);
        opacity: 0;
    }

    60% {
        transform: translateX(10%) translateY(-4px);
        opacity: 1;
    }

    100% {
        transform: translateX(0) translateY(0);
        opacity: 1;
    }
}

/* ドローンが上下にふわふわ浮遊 */
@keyframes drone-float {
    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-8px);
    }

    100% {
        transform: translateY(0);
    }
}

.sec_about h3 span {
    padding-right: 108px;
    width: 180px;
    margin-top: 0.4em;
}

.sec_about .inner {
    position: relative;
}

.sec_about .about_illust {
    right: -60px;
    bottom: -30px;
}

.sec_about h3 {
    color: #2953D3;
    font-weight: 700;
    display: flex;
    margin-bottom: 40px;
}

.sec_about p {
    padding-left: 180px;
}

.sec_about .area_btn {
    padding-left: 180px;
    text-align: left;
}

.area_title {
    display: flex;
}


.sec_service h3 {
    margin-right: 40px;
}

.sec_service .area_title {
    margin-bottom: 16px;
}

.sec_service .area_title .area_image {
    width: 352px;
}


.service_item .service_image {
    width: 432px;
}

.service_item .text_area {
    width: 512px;
}


.service_item .area_btn {
    margin-top: 40px;
    text-align: right;
}


.heading_text {
    font-size: 2rem;
    font-weight: 700;
    color: #2953D3;
    padding-bottom: 0.8em;
    border-bottom: 1px solid #2953D3;
    margin-bottom: 0.8em;
}

.drone_service_list_wrap {
    margin-top: 32px;
}

h5 {
    font-size: 20px;
    color: #2953D3;
    padding-left: 1.2em;
    position: relative;
    margin-bottom: 0.6em;
}

h5::before {
    content: "";
    position: absolute;
    width: 0.8em;
    height: 0.8em;
    background-color: #2953D3;
    border-radius: 100vmax;
    left: 0;
    top: 0;
    bottom: 0;
    margin: auto 0;
}

.drone_service_list li {
    width: 23.6%;
    position: relative;
}

h6 {
    position: absolute;
    color: #2953D3;
    background-color: #fff;
    bottom: 0;
    left: 0;
    font-size: 1.8rem;
    padding: 0.4em;
    display: block;
    text-align: center;
    width: 100%;
}


.sec_works {
    padding-bottom: 0;
}

.sec_works .area_title {
    margin-bottom: 40px;
}


.sec_greetings .text_area {
    width: 540px;
}

.sec_greetings .area_image {
    width: 480px;
}

.sec_greetings .area_title {
    margin-bottom: 24px;
}

.sec_greetings .heading_text {
    margin-bottom: 24px;
    border: none;
}

.sec_greetings .area_btn {
    text-align: left;
}


.l_image {
    height: 52vh;
    width: 100%;
    margin-bottom: 180px;
    position: relative;
    overflow: hidden;
}

.l_image video {
    position: sticky;
    top: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}


@media screen and (max-width: 767px) {

    h3 {
        font-size: 22px;
    }

    .area_title {
        flex-wrap: wrap;
        margin-bottom: 30px;
    }

    h4 {
        font-size: 2rem;
        line-height: 1.9;
    }

    .heading_text {
        font-size: 1.8rem;
    }

    h3 span {
        font-size: 14px;
    }


    .mv {
        padding: 0 20px;
        flex-wrap: wrap;
    }

    .mv_image_l {
        height: 68vw;
    }

    .mv_left {
        width: 100%;
    }

    .mv_video {
        height: 70vw;
    }

    .mv .neumorphism img {
        position: absolute;
        top: -33px;
        left: -20px;
        width: 80px;
    }

    .mv_img {
        width: 100%;
    }

    .mv .neumorphism {
        font-size: 1.4rem;
        padding: 16px;
        margin-top: 32px;
        border-radius: 16px;
    }

    .mv_right {
        width: 100%;
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        flex-wrap: wrap;
    }

    h2 {
        font-size: 2.4rem;
        line-height: 1.7;
        margin-top: 60px;
    }

    .illust_wrap {
        width: 200px;
        margin: 0 0 0 auto;
        display: flex;
        flex-wrap: nowrap;
        justify-content: end;
        align-items: flex-end;
        margin-top: -40px;
    }

    .yokoyama_01 {
        width: 28%;
    }

    .mv_bicycle {
        width: 46%;
    }

    .area_btn {
        text-align: center !important;
    }



    .sec_about {
        padding-bottom: 60px;
    }

    .sec_about h3 span {
        padding-right: 32px;
        width: auto;
        margin-top: 0.4em;
        font-size: 1.4rem;
    }

    .sec_about p {
        padding-left: 0;
    }

    .sec_about .area_btn {
        margin-top: 160px;
        padding-left: 0;
        margin-top: 160px;
    }

    .area_btn a {
        min-width: 260px;
    }

    .sec_about .about_illust {
        right: 0;
        width: 130px;
        bottom: 100px;
    }

    .sec_service h3 {
        margin-right: 0;
        margin-bottom: 24px;
    }


    .sec_service .area_title .area_image {
        width: 200px;
        margin: 0 0 0 auto;
    }

    .service_item .service_image {
        width: 100%;
        margin-bottom: 1em;
    }

    .sec_service .area_btn {
        margin-top: 32px;
    }

    .drone_service_list {
        justify-content: center;
        gap: 20px;
    }

    .drone_service_list li {
        width: 96%;
    }

    .sec_works {
        padding-bottom: 80px;
    }

    .sec_works .area_title img {
        width: 100px;
    }

    .works_list {
        gap: 30px;
    }

    .profile span {
        margin-right: 1em;
    }

    .sec_greetings {
        padding-bottom: 80px;
        padding-top: 40px;
    }

    .sec_greetings .text_area {
        margin-bottom: 40px;
    }

    .l_image {
        margin-top: 60px;
        margin-bottom: 60px;
    }

    .l_image {
        height: 200px;
    }

    .sec_blog .left_area {
        margin-bottom: 40px;
    }

    .sec_blog .area_title img {
        width: 80px;
    }

    .sec_blog .area_btn {
        margin: 32px auto 0;
    }

    .blog_list li a .text_area {
        margin-left: 16px;
    }

}