.m-br {
    display: none;
}

/* ────────────────────── 비주얼 ────────────────────── */
.visual-area {
    overflow: hidden;
    position: relative;
    width: 100%;
    height: 100vh;
    margin-top: -80px;
    background: #000;
}
.visual-area .swiper {
    width: 100%;
    height: 100%;
}
.visual-area .swiper-slide {
    position: relative;
    width: 100%;
    height: 100%;
    padding-top: 80px;
    background-size: cover;
    background-position: center center;
}
.visual-area .slide-01 {
    background-image: url(/images/main/mvis_bg1.jpg);
}
.visual-area .slide-02 {
    background-image: url(/images/main/mvis_bg2.jpg);
}
.visual-area .tit {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    color: #fff;
    font-family: 'Paperlogy', sans-serif;
    text-align: center;
    transform: translate(-50%, -50%);
}
.visual-area .tit .deco {
    opacity: 0;
    display: block;
    width: 60px;
    height: 45px;
    margin: 0 auto 2rem;
    background: url(/images/main/mvis_deco.png) no-repeat center top;
    background-size: contain;
    transform: translateY(40px);
    transition:
        opacity 1.2s ease-in-out,
        transform 1.2s cubic-bezier(0.25, 0.1, 0.25, 1);
}
.visual-area .tit .text {
    opacity: 0;
    display: block;
    font-family: 'Paperlogy', sans-serif;
    font-size: 6.4rem;
    font-weight: 200;
    line-height: 1.2;
    transition: opacity 1.2s ease-in-out 0.4s;
}
.visual-area .tit .text strong {
    font-family: 'Paperlogy', sans-serif;
    font-weight: 400;
}
.visual-area .tit.first-load .deco {
    opacity: 1;
    transform: translateY(0);
}
.visual-area .tit.first-load .text {
    opacity: 1;
}
.swiper-slide-active .tit:not(.first-load) .deco {
    opacity: 1;
    transform: translateY(0);
    transition: none;
}
.swiper-slide-active .tit:not(.first-load) .text {
    opacity: 1;
    transition: opacity 1.2s ease;
}
/* 스크롤 */
.visual-area .scroll {
    z-index: 2;
    position: absolute;
    right: 0;
    left: 0;
    bottom: 5rem;
    width: 25px;
    height: 40px;
    margin: 0 auto;
    border-radius: 12px;
    border: 2px solid #fff;
}
.visual-area .scroll span {
    z-index: 2;
    position: absolute;
    top: 8px;
    right: 0;
    left: 0;
    width: 3px;
    height: 8px;
    margin: 0 auto;
    border-radius: 3px;
    background: #00984a;
    animation: scrollMove 1.6s ease-in-out infinite;
}
@keyframes scrollMove {
    0% {
        transform: translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateY(4px);
        opacity: 0.4;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}



/* ────────────────────── 해사랑 ────────────────────── */
.promise-area {
    overflow: hidden;
    position: relative;
    padding: 18rem 0 16rem;
}
.promise-area .inner {
    position: relative;
    display: flex;
    justify-content: space-between;
    width: 1680px;
    margin: 0 auto;
    padding: 0 8rem;
}
.promise-area .inner::before {
    content: "";
    display: block;
    position: absolute;
    top: 640px;
    left: 0;
    width: 540px;
    height: 368px;
    background: url(/images/main/promise_bg.png) no-repeat left bottom / contain;
}
.promise-left {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}
.promise-area .mtit {
    margin-bottom: 5rem;
    color: #111;
    font-family: 'Paperlogy', sans-serif;
    font-size: 5.2rem;
    font-weight: 200;
    line-height: 1.2;
}
.promise-area .mtit > * {
    font-family: 'Paperlogy', sans-serif;
}
.promise-area .mtit strong {
    font-weight: 400;
}
.promise-area .mtit em {
    color: #00984a;
}
.promise-area .stit {
    margin-bottom: 3.5rem;
    color: #111;
    font-size: 2.4rem;
    font-weight: 600;
}
.promise-area .desc {
    color: #444;
    font-size: 1.8rem;
    line-height: 1.5;
}

/* 오른쪽 영역 */
.promise-right {
    display: flex;
    flex-direction: column;
}
.promise-card {
    padding: 8rem 0 8rem 22rem;
    border-bottom: 1px solid #eee;;
}
.promise-card .title {
    z-index: 1;
    position: relative;
    margin-bottom: 10px;
    color: #111;
    font-size: 3.6rem;
    font-weight: 600;
    line-height: 1.5;
}
.promise-card .title::after {
    content: "";
    position: absolute;
    top: 0;
    left: -12rem;
    display: block;
    width: 63px;
    background-repeat: no-repeat;
    background-position: left top;
    background-size: contain;
}
.promise-card.clean .title::after {
    height: 57px;
    background-image: url(/images/main/promise_ico1.png);
}
.promise-card.certified .title::after {
    height: 47px;
    background-image: url(/images/main/promise_ico2.png);
}
.promise-card.process .title::after {
    height: 59px;
    background-image: url(/images/main/promise_ico3.png);
}
.promise-card .title::before {
    position: absolute;
    bottom: 1rem;
    left: -3rem;
    font-family: 'Paperlogy', sans-serif;
    font-size: 11rem;
    font-weight: 200;
    line-height: 1;
    letter-spacing: -0.06em;
    white-space: nowrap;
}
.promise-card.clean .title::before {
    content: "Clean Seaweed";
    color: rgba(0, 114, 188, 0.1);
}
.promise-card.certified .title::before {
    content: "Certified Quality";
    color: rgba(247, 148, 29, 0.1);
}
.promise-card.process .title::before {
    content: "Smart Process";
    color: rgba(0, 152, 74, 0.1);
}
.promise-card .desc {
    margin-bottom: 4rem;
    font-size: 1.6rem;
    line-height: 1.5;
    color: #444;
}

/* 버튼 */
.link-btn {
    display: inline-flex;
    justify-content: flex-start;
    align-items: center;
    padding: 0 3rem;
    min-width: 230px;
    height: 60px;
    border-radius: 10px;
    border: 1px solid #111;
    background-color: #111;
    background-image: url(/images/main/btn_arrow.png);
    background-repeat: no-repeat;
    background-position: right 3rem center;
    color: #fff;
    font-size: 1.6rem;
    font-weight: 400;
    transition: all 0.4s ease-in-out;
}
.link-btn span {
    display: block;
    padding-right: 3rem;
    transition: all 0.4s ease-in-out;
}
.link-btn:hover {
    background-color: rgba(255, 255, 255, 0.6);
    background-image: none;
    color: #111;
    font-weight: 600;
}
.link-btn:hover span {
    padding-right: 0;
}


/* ───────────── 제품 ───────────── */
.product-section {
    min-height: 2226px;
    background: #fbf9f5 url(/images/main/section_bg.jpg) no-repeat center bottom;
}
.product-area {
    overflow: hidden;
    padding: 16rem 0;
    text-align: center;
}
.product-area .mtit {
    margin-top: 3.4rem;
    font-family: 'Paperlogy', sans-serif;
    color: #111;
    font-size: 5.2rem;
    font-weight: 200;
}
.product-area .mtit strong {
    font-family: 'Paperlogy', sans-serif;
    font-weight: 400;
}

.product-marquee-wrap {
    position: relative;
    margin: 8rem 0 7.5rem;
}
.product-marquee {
    display: flex;
    width: max-content;
    animation: productScroll 80s linear infinite;
}
@keyframes productScroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}
.product-group {
    display: flex;
}
.product-card {
    overflow: hidden;
    flex: 0 0 42.5rem;
    display: block;
    margin: 0 1.5rem;
    border-radius: 10px;
    background: #f4e8d4;
    box-shadow: 0 3px 20px rgba(0,0,0,0.15);
    transition: transform 0.4s ease-in-out, box-shadow 0.4s ease-in-out;
}
.product-card img {
    display: block;
    width: 100%;
    height: auto;
}
.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 5px 22px rgba(28,59,44,0.18);
}
.product-marquee-wrap:hover .product-marquee {
    animation-play-state: paused;
}

.product-section .desc {
    color: #444;
    font-size: 1.8rem;
    line-height: 1.5;
}
.product-section .desc .m-br {
    display: none;
}



/* ───────────── 문의하기 ───────────── */
.contact-area {
    padding: 16rem 0;
}
.contact-area .inner {
    width: 1520px;
    margin: 0 auto;
}
.contact-area .mtit {
    margin-top: 3.4rem;
    font-family: 'Paperlogy', sans-serif;
    color: #111;
    font-size: 5.2rem;
    font-weight: 200;
}
.contact-area .mtit em {
    color: #00984a;
}
.contact-area .mtit strong {
    font-family: 'Paperlogy', sans-serif;
    font-weight: 400;
}

.contact-area .link-btn {
    margin-top: 6rem;
}


/* ────────────────────── 반응형 ────────────────────── */
/* PC */
@media only screen and (max-width:1519px) {
    /* ────────── 공통 ────────── */
    .promise-area .inner,
    .contact-area .inner {
        width: 92%;
        margin: 0 auto;
        padding-right: 0;
        padding-left: 0;
        box-sizing: border-box;
    }
    
    /* ────────── 해사랑 ────────── */
    .promise-area .inner::before {
        top: 90rem;
        left: -4%;
        width: 420px;
        height: calc(420px * 0.681);
    }
}
@media only screen and (max-width: 1199px) {
    /* ────────── 공통 ────────── */
    .promise-area .mtit,
    .product-area .mtit,
    .contact-area .mtit {
        font-size: 4.8rem;
    }
    .promise-card .desc,
    .product-section .desc {
        font-size: 1.7rem;
    }

    /* ────────── 해사랑 ────────── */
    .promise-card .title {
        font-size: 3.2rem;
    }
}

/* Tablet */
@media only screen and (max-width: 1023px) {
    /* ────────── 비주얼 ────────── */
    .visual-area {
        height: auto;
        aspect-ratio: 1920 / 950;
    }
    .visual-area .tit .text {
        font-size: 5.2rem;
    }
    .visual-area .scroll {
        display: none;
    }

    /* ────────── 공통 ────────── */
    .promise-area .mtit,
    .product-area .mtit,
    .contact-area .mtit {
        font-size: 4.2rem;
    }
    .promise-area .desc,
    .promise-card .desc,
    .product-section .desc {
        margin-bottom: 2rem;
        padding: 0 2.4rem;
        font-size: 2rem;
    }

    /* ────────── 해사랑 ────────── */
    .promise-area {
        padding: 12rem 0 10rem;
    }
    .promise-area .inner {
        flex-direction: column;
        gap: 6rem;
    }
    .promise-area .inner::before {
        width: 300px;
        height: auto;
        top: auto;
        bottom: -20px;
        left: 50%;
        transform: translateX(-50%);
        opacity: 0.6;
    }
    .promise-area .desc br {
        display: none;
    }
    .promise-card {
        padding: 6rem 0 6rem 18rem;
    }
    .promise-card .title {
        font-size: 3.0rem;
    }
    .promise-card .title::after {
        width: 52px;
    }
    .promise-card .title::before {
        font-size: 9rem;
    }
    .product-section {
        min-height: auto;
        background-size: contain;
    }
    
    /* ────────── 제품 ────────── */
    .product-area {
        padding: 12rem 0;
    }
    .product-area .mtit {
        margin-top: 1.5rem;
    }
    .product-area .mtit strong {
        display: block;
    }
    .product-section .desc br {
        display: none;
    }
    

    /* ────────── 문의하기 ────────── */
    .contact-area {
        padding: 12rem 0 40rem;
    }
}

/* Mobile (≤767px) */
@media only screen and (max-width: 767px) {
    /* ────────── 비주얼 ────────── */
    .visual-area {
        height: 320px;
    }
    .visual-area .tit {
        margin-top: 3rem;
    }
    .visual-area .tit .deco {
        width: 40px;
        height: 25px;
        margin-bottom: 1rem;
    }
    .visual-area .tit .text {
        font-size: 3.6rem;
    }

    /* ────────── 공통 ────────── */
    .m-br {
        display: block;
    }
    .promise-area .inner,
    .product-area,
    .contact-area .inner {
        width: 100%;
        padding: 0 2.4rem;
        box-sizing: border-box;
    }
    .promise-area .mtit,
    .product-area .mtit,
    .contact-area .mtit {
        margin-bottom: 3rem;
        font-size: 3.2rem;
    }
    .promise-area .stit {
        margin-bottom: 1.5rem;
    }
    .link-btn {
        height: 50px;
    }
    .link-btn span {
        width: 100%;
        padding-right: 2rem;
    }

    /* ────────── 해사랑 ────────── */
    .promise-area {
        padding: 8rem 0 7rem;
    }
    .promise-area .inner::before {
        width: 200px;
        opacity: 0.4;
        bottom: -10px;
    }
    .promise-card {
        padding: 4rem 0 4rem 8rem;
    }
    .promise-card .title {
        font-size: 2.4rem;
    }
    .promise-card .title::after {
        width: 40px;
        height: 40px;
        left: -6rem;
        background-size: contain;
    }
    .promise-card .title::before {
        font-size: 5.2rem;
        left: -1rem;
        bottom: 0;
    }
    .promise-card {
        padding: 3.2rem 0 3.2rem 6rem;
    }
    .promise-card .title::after {
        width: 30px;
        height: auto;
        left: -5rem;
    }

    /* ────────── 제품 ────────── */
    .product-area {
        padding: 8rem 0;
    }
    .product-marquee-wrap {
        margin: 3rem 0;
    }

    /* ────────── 문의하기 ────────── */
    .contact-area {
        padding: 0 0 25rem;
        text-align: center;
    }
    .contact-area .link-btn {
        width: 50%;
        min-width: 160px;
        max-width: 160px;
        height: 50px;
        margin-top: 0;
        text-align: left;
        background-color: rgba(0, 0, 0, 0.8);
        backdrop-filter: blur(4px);
    }
    .contact-area .link-btn span {
        width: 100%;
        padding-right: 5rem;
    }
}