/* =========================
   リセットCSS
========================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    overflow-x: hidden;
    font-family: "Segoe UI", Meiryo, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    color: #333;
    background: #fff;
    line-height: 1.6;
    scroll-behavior: smooth;
}

a {
    color: #004977;
    text-decoration: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* =========================
   コンテナ共通
========================= */
.container {
    width: 90%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 0;
}

/* =========================
   セクション共通
========================= */
.section {
    margin: 20px auto;
}

.section:nth-of-type(even) {
    background: #fff;
}

.section-title-wrap {
    position: relative;
    text-align: center;
    margin: 40px auto;
}

.section-title-en {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 8vw;
    /* レスポンシブ対応 */
    color: rgba(0, 0, 0, 0.05);
    font-weight: bold;
    z-index: 0;
    white-space: nowrap;
    pointer-events: none;
    letter-spacing: 15px;
}

.section-title-ja {
    position: relative;
    font-size: 1.8rem;
    font-weight: bold;
    z-index: 1;
    display: inline-block;
    padding-bottom: 8px;
    border-bottom: 3px solid #d4af37;
    /* 下線装飾 */
    background-color: transparent;
    text-shadow: 0px 0px 20px #ffffff;
    color: #343434;
}

.section-title {
    text-align: center;
    margin-bottom: 24px;
}


/* =========================
   Parallax Background 共通
========================= */
.bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-size: cover;
    background-position: center;
    z-index: -1;
    pointer-events: none;
}

/* 各セクションの背景画像指定（PNG使用） */
.bg-strengths {
    background-image: url("../img/bg-strengths.png");
    /* 明るめ背景 */
    background-size: cover;
    background-position: center;
    opacity: 0.8;
}

.bg-cases {
    background-image: url("../img/bg-cases.png");
}

/* =========================
   Parallax Section 共通設定
========================= */
.parallax-container {
    position: relative;
    min-height: 400px;
    overflow: hidden;
}

.parallax-container .section-title-ja {
    color: #fff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);

}

.parallax-inner {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    clip-path: polygon(0px 50px,
            100% 0px,
            100% calc(100% - 50px),
            0% 100%);
    z-index: 0;
    pointer-events: none;
}

/* =========================
   コンテンツ表示
========================= */
.content {
    position: relative;
    z-index: 1;
    padding: 20px;
}

/* =========================
   ヘッダー
========================= */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #eee;
    z-index: 9999;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    padding: 12px 16px;
    margin: 0 auto;
}

.logo {
    height: 32px;
}

.site-nav ul {
    display: flex;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.site-nav a {
    color: #000;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
}

.header-contact {
    display: flex;
    align-items: center;
    gap: 20px;
}

.tel-block {
    display: flex;
    flex-direction: column;
    text-align: right;
    font-size: 0.8rem;
}

.tel-number {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
    font-weight: bold;
    color: #111;
}

.tel-number i {
    color: #004977;
    font-size: 0.9rem;
}

.tel-note {
    color: #777;
    font-size: 0.75rem;
    margin-top: 2px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: bold;
    padding: 10px 18px;
    border-radius: 6px;
    font-size: 0.9rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: #004977;
    color: #fff;
}

.btn-primary:hover {
    background: #002f9c;
}

/* =========================
   ハンバーガーアイコンアニメーション
========================= */
.menu-toggle {
    display: none;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    position: relative;
    z-index: 10001;
    cursor: pointer;
}

.menu-icon {
    position: relative;
    display: block;
    width: 24px;
    height: 2px;
    background-color: #000;
    transition: background 0.3s ease;
}

.menu-icon::before,
.menu-icon::after {
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background-color: #000;
    transition: all 0.3s ease;
}

.menu-icon::before {
    top: -8px;
}

.menu-icon::after {
    top: 8px;
}

.menu-toggle.open .menu-icon {
    background-color: transparent;
}

.menu-toggle.open .menu-icon::before {
    transform: rotate(45deg);
    top: 0;
}

.menu-toggle.open .menu-icon::after {
    transform: rotate(-45deg);
    top: 0;
}

/* =========================
   モバイルメニュー
========================= */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: 10000;
    padding: 40px 20px;
    transform: translateY(-100%);
    transition: transform 0.4s ease, opacity 0.4s ease;
    opacity: 0;
    pointer-events: none;
    overflow: hidden;
    background: #fff;
}

.mobile-menu::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: -1;
}

.mobile-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
    display: flex;
}

/* =========================
   モバイルメニュー中身
========================= */
.mobile-inner {
    padding: 24px 0;
    height: 100%;
    box-sizing: border-box;
    width: 100%;
}

.menu-close {
    align-self: flex-end;
    background: none;
    border: 2px solid #004977;
    color: #004977;
    font-size: 24px;
    padding: 4px 10px;
    border-radius: 6px;
    cursor: pointer;
    margin-bottom: 20px;
}

.mobile-nav ul {
    list-style: none;
    padding: 0;
    margin: 0 0 40px;
}

.mobile-nav li {
    margin-bottom: 16px;
    border-bottom: 1px solid #e9e9e9;
    padding-bottom: 7px;
}

.mobile-nav a {
    font-size: 1.2rem;
    font-weight: bold;
    text-decoration: none;
    color: #004977;
    display: block;
}

.mobile-contact {
    margin-top: auto;
    text-align: center;
    padding: 20px;
    background: #fbfbfb;
    width: 100%;
}

.mobile-contact .mobile-tel {
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: 4px;
}

.mobile-contact .mobile-note {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 16px;
}

.mobile-contact .btn-primary {
    display: inline-block;
    background: #004977;
    color: #fff;
    padding: 12px 24px;
    font-weight: bold;
    font-size: 1rem;
    border-radius: 6px;
    text-decoration: none;
    transition: background 0.3s;
}

.mobile-contact .btn-primary:hover {
    background: #1330a6;
}

/* =========================
   ファーストビュー
========================= */
.hero {
    position: relative;
    background-image: url("../img/hero-bg.png");
    /* ← 背景画像ここに配置 */
    background-size: cover;
    background-position: center;
    padding: 160px 20px 120px;
    color: #fff;
    text-align: center;
    overflow: hidden;

}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 960px;
    margin: 0 auto;
    padding: 50px;
}

.hero-content::before {
    content: "";
    position: absolute;
    inset: 0;
    background-color: rgb(255 255 255 / 80%);
    /* 白の半透明 */
    backdrop-filter: blur(20px);
    /* すりガラス効果 */
    -webkit-backdrop-filter: blur(20px);
    /* Safari対応 */
    z-index: -1;
    pointer-events: none;
    /* 必要なら角丸も */
}

.hero-logo {
    width: 100px;
    margin: 0 auto 24px;
    display: block;
    filter: drop-shadow(0 2px 10px rgba(255, 255, 255, 0.3));
}

.hero-title {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 20px;
    color: #004977;
}

.hero-lead {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 32px;
    color: #004977;

}

.btn-primary {
    background: #004977;
    color: #fff;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: bold;
    display: inline-block;
    text-decoration: none;
    transition: background 0.3s;
}

.btn-primary:hover {
    background: #1533a8;
}

@media (max-width: 768px) {
    .hero {
        padding: 120px 20px 80px;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .hero-lead {
        font-size: 1rem;
    }
}

/* =========================
   サービス2列レイアウト
========================= */

.service-item {
    position: relative;
    background: #fff;
    border: 1px solid #ececec;
    padding: 24px;
    border-radius: 8px;
    overflow: hidden;
}

/* 左上に大きく番号を表示 */
.service-item .service-number {
    position: absolute;
    top: -16px;
    left: 16px;
    font-size: 5rem;
    font-weight: bold;
    color: rgba(0, 73, 119, 0.08);
    /* 薄いブルーで背景になじませる */
    z-index: 0;
    pointer-events: none;
}


/* 他の要素が上にくるように */
.service-item>*:not(.service-number) {
    position: relative;
    z-index: 1;
}

.service-columns .service-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    justify-content: center;
}

.service-columns .service-item {
    text-align: left;
}

.service-columns .service-img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 16px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.service-columns .service-item h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    text-align: center;
    font-weight: bold;
}

.service-columns .service-item p {
    font-size: 0.95rem;
    line-height: 1.7;
    margin: 0 auto 12px;
    max-width: 400px;
}

.example-label {
    background: #f9f9f9;
    border-left: 4px solid #ffc107;
    padding: 12px;
    margin-top: 16px;
    display: block;
    font-size: 0.85rem;
    line-height: 1.6;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.example-label {
    display: inline-block;
    font-weight: bold;
    font-size: 0.8rem;
    background: #fcfcfc;
    padding: 12px;
    margin: 12px 0 0;
}

.example-label i {
    margin-right: 4px;
    color: #ffc107;
    /* 電球っぽい黄系 */
}

/* =========================
   モバイル対応
========================= */

.other-service-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.other-service-box {
    width: 350px;
    /* ← 固定幅に変更 */
    background: #fff;
    border: 1px solid #004977;
    border-radius: 6px;
    padding: 16px;
    font-size: 0.95rem;
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    box-sizing: border-box;
}

.other-service-box i {
    color: #004977;
    min-width: 1.2em;
    font-size: 1rem;
    margin-top: 4px;
}


@media (max-width: 768px) {
    .service-columns .service-grid {
        grid-template-columns: 1fr;
    }

    .other-service-grid {
        grid-template-columns: 1fr;
    }
}

/* =========================
   case
========================= */

#cases {
    padding: 20px 0;
}

.case-block {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    padding: 32px;
    margin-bottom: 40px;
    transition: 0.3s ease;
}

.case-header .case-label {
    display: inline-block;
    background: #004977;
    color: #fff;
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 8px;
}

.case-header .case-title {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 4px;
}

.case-header .case-sub {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 16px;
    background: #fcfcfc;
    display: inline-block;
    padding: 6px 12px;
}

.case-body h4 {
    font-size: 0.9rem;
    margin-bottom: 8px;
    color: #004977;
    border-left: 4px solid #004977;
    padding-left: 10px;
    position: relative;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 6px;
}

.case-body h4::before {
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    content: "\f0eb";
    /* fa-lightbulb */
    font-size: 1rem;
    color: #ffc107;
}

.case-header .case-sub i {
    margin-right: 6px;
    color: #e53935;
    /* 注意を促す赤系カラー */
}


.case-body ul {
    margin-bottom: 16px;
    padding-left: 1.2em;
    list-style: disc;
    color: #333;
    font-size: 0.9rem;
}

.case-results {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.result-badge {
    background: #eef6fb;
    color: #004977;
    font-weight: bold;
    border-radius: 4px;
    padding: 6px 12px;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.result-badge::before {
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    display: inline-block;
    content: "\f058";
    /* fa-circle-check */
    font-size: 0.9rem;
}


.case-block.two-column {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    background: #fff;
    border-radius: 12px;
    padding: 32px;
    margin-bottom: 40px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transition: 0.3s ease;
}

.case-text {
    flex: 1;
}

.case-image {
    flex: 0 0 280px;
}

.case-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
    .case-block.two-column {
        flex-direction: column;
    }

    .case-image {
        width: 100%;
        max-width: 100%;
        flex: unset;
    }
}

/* =========================
   サービス／プラン／実績／強み
========================= */

#services {
    background-color: #fefefe;
}


/* =========================
   私たちの強みセクション
========================= */
#strengths {
    padding: 20px 0;
}

#strengths .section-title {
    text-align: center;
    font-size: 1.8rem;
    font-weight: bold;
    margin-bottom: 48px;
}

.strength-feature-grid {
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    gap: 32px;
}

.feature-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    padding: 32px 24px;
    width: 100%;
    max-width: 320px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: relative;
}

.feature-number {
    position: absolute;
    top: -12px;
    left: -12px;
    background: #004977;
    color: #fff;
    font-size: 0.75rem;
    font-weight: bold;
    padding: 6px 10px;
    border-radius: 6px;
}

.feature-card h3 {
    font-size: 1.2rem;
    font-weight: bold;
    color: #004977;
    margin-bottom: 8px;
    padding-top: 20px;
}

.feature-card p {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 16px;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.feature-tags span {
    background: linear-gradient(90deg, #4c6070, #6b7c8a);
    color: #fff;
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 50px;
    white-space: nowrap;
}

/* =========================
   レスポンシブ対応
========================= */
@media (max-width: 768px) {
    .strength-feature-grid {
        flex-direction: column;
        align-items: center;
    }

    .feature-card {
        max-width: 90%;
    }
}

/* =========================
   パッケージプラン比較スタイル
========================= */
.plan-table {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 16px;
    padding: 40px 0 40px 16px;
    /* ← 左に少し余白を足す */
    scroll-snap-type: x mandatory;
}

.plan-column {
    flex: 1;
    min-width: 280px;
    max-width: 340px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
    padding: 24px 12px;
    text-align: center;
    transition: transform 0.3s;
}

.plan-column:hover {
    transform: translateY(-4px);
}

.plan-heading {
    font-size: 1.1rem;
    font-weight: bold;
    margin-bottom: 12px;
    color: #004977;
}

.price {
    font-size: 1.8rem;
    font-weight: bold;
    color: #004977;
}

.price-sub {
    font-size: 0.8rem;
    color: #666;
    /* 明度を下げて目立ちすぎないように */
    margin-left: 2px;
    vertical-align: baseline;
    /* フォント下線に合わせる */
}

.plan-cta {
    display: inline-block;
    margin-bottom: 16px;
    padding: 8px 16px;
    background: #004977;
    color: #fff;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
    transition: background 0.3s;
}

.plan-cta:hover {
    background: #005c99;
}

.plan-list {
    text-align: left;
    padding: 0;
    margin: 0;
    list-style: none;
}

.plan-list li {
    margin-bottom: 10px;
    line-height: 1.6;
}

.badge {
    display: inline-block;
    background: linear-gradient(90deg, #fceabb, #ffd76c);
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    margin-right: 6px;
    font-weight: bold;
    min-width: 65px;
    text-align: center;
}

.plan-intro {
    text-align: center;
    margin-top: 8px;
    color: #666;
    font-size: 0.95rem;
}

.plan-table-scroll-note {
    font-size: 0.8rem;
    text-align: right;
    color: #999;
    margin-top: -16px;
    margin-bottom: 8px;
    padding-right: 8px;
    display: none;
}

@media (max-width: 768px) {
    .plan-table {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x mandatory;
        scroll-padding-left: 16px;
        /* スナップ位置の基準 */
        padding-left: 0;
        margin-left: 0;
    }

    .plan-column {
        flex: 0 0 80%;
        min-width: 280px;
        scroll-snap-align: start;
    }

    /* 最初のカラムの左マージンはゼロ */
    .plan-column:first-child {
        margin-left: 16px;
    }

    /* 最後のカラムは余白確保して切れないように */
    .plan-column:last-child {
        margin-right: 16px;
    }

    .plan-list li {
        font-size: 13px;
    }

    .plan-table-scroll-note {
        display: block;
    }

}



/* =========================
   会社概要
========================= */

#company {
    background-color: #f0f2f3;
    background-image: linear-gradient(0deg, transparent calc(100% - 1px), #e6e8ea calc(100% - 1px)), linear-gradient(90deg, transparent calc(100% - 1px), #e6e8ea calc(100% - 1px));
    background-size: 23px 23px;
    background-repeat: repeat;
    background-position: center center;
    padding: 60px 0 90px;
    margin: -60px 0;
}

.company-info dl {
    overflow: hidden;
    font-size: 0.95rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.company-info .row {
    display: flex;
    flex-direction: row;
    padding: 16px;
    border-top: 1px solid #f7f7f7;
    background: #fff;
}

.company-info .row:first-child {
    border-top: none;
}

.company-info dt {
    width: 30%;
    font-weight: bold;
    background: #f8f9fa;
    padding: 12px 16px;
    color: #333;
}

.company-info dd {
    width: 70%;
    margin: 0;
    padding: 12px 16px;
    background: #fff;
    color: #333;
    line-height: 1.6;
}

/* モバイル対応 */
@media (max-width: 768px) {
    .company-info .row {
        flex-direction: column;
    }

    .company-info dt,
    .company-info dd {
        width: 100%;
        padding: 10px 16px;
    }
}

/* =========================
   お問い合わせセクション
========================= */

.contact-section {
    background: #2d4fc1;
    color: #fff;
    padding: 60px 0;
}

.contact-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    gap: 40px;
    flex-wrap: wrap;
    padding: 0 20px;
}

.contact-left img {
    max-width: 500px;
    width: 100%;
    border-radius: 8px;
    transform: rotate(-3deg);
    /* 左に3度傾ける */
    scale: 1.2;
}

.contact-right {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.contact-heading {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 6px;
}

.contact-subtext {
    font-size: .9rem;
    margin-bottom: 24px;
}

.contact-btn {
    display: inline-block;
    background: #fff;
    color: #2d4fc1;
    font-weight: bold;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 1rem;
    transition: background 0.3s, color 0.3s;
    text-decoration: none;
    border: none;
}

.contact-btn i {
    margin-right: 8px;
}

.contact-btn:hover {
    background: #f2f2f2;
}

/* =========================
   フッター
========================= */
.site-footer {
    background: #fff;
    padding: 40px 20px;
    text-align: center;
    border-top: 1px solid #eee;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.footer-logo {
    width: 180px;
    height: auto;
}

.copyright {
    font-size: 0.75rem;
    color: #888;
}


/* =========================
   メディアクエリ（スマホ対応）
========================= */

@media (max-width: 768px) {
    .site-header .container {
        gap: 10px;
    }

    .site-nav,
    .header-contact {
        display: none;
    }

    .content {
        padding: 0;
    }

    .menu-toggle {
        display: block;
    }

    .site-nav {
        width: 100%;
        display: none;
    }

    .site-nav.active {
        display: block;
    }

    .site-nav ul {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        padding: 16px 0;
    }

    .hero h2 {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.3rem;
    }
}


/* =========================
   ベルトコンベア背景
========================= */
.image-belt-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.image-belt {
    position: absolute;
    top: 0;
    left: 0;
    width: 300%;
    /* 十分な横幅 */
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    animation: beltScroll 60s linear infinite;
}


.belt-row {
    display: flex;
    gap: 20px;
    padding: 0 20px;
    height: 30%;
}

.belt-row img {
    height: 100%;
    flex-shrink: 0;
    border-radius: 10px;
    filter: blur(1px);
}


/* ベルトのスライドアニメーション */
@keyframes beltScroll {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(-33.33%);
    }
}

.belt-mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;

    background: linear-gradient(to bottom,
            rgba(255, 255, 255, 1) 0%,
            rgba(255, 255, 255, 0.85) 15%,
            rgba(255, 255, 255, 0.3) 30%,
            rgba(255, 255, 255, 0) 40%,
            rgba(255, 255, 255, 0) 60%,
            rgba(255, 255, 255, 0.3) 70%,
            rgba(255, 255, 255, 0.85) 85%,
            rgba(255, 255, 255, 1) 100%);
}

.belt-row:nth-child(1) {
    transform: translateX(0);
}

.belt-row:nth-child(2) {
    transform: translateX(20px);
}

.belt-row:nth-child(3) {
    transform: translateX(-20px);
}