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

:root {
    --green: #18a65d;
    --green-light: #e4fff1;
    --green-bg: #e9fff4;
    --cream: #ffefd4;
    --text: #545454;
    --title: #04b259;
    --circle-text: #008117;
    --text-brown: #725139;
    --brown-bg: #c49c57;
}

body {
    font-family: "Reddit Sans", sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: #fff;
}

h1,
h2,
h3 {
    font-family: "Platypi", serif;
    color: var(--green);
    letter-spacing: 1px;
}

#introduction {
    background: var(--green);
}

.navbar {
    padding: 50px 150px;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: transparent;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav a {
    text-decoration: none;
    color: var(--green);
    background: var(--cream);
    padding: 5px 30px;
    border-radius: 999px;
    text-align: center;
    transition: all 0.3s ease;
}

.nav a:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* ====== HAMBURGER MENU ====== */
.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #fff;
    margin: 5px 0;
    display: block;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}


.intro_sum {
    display: flex;
}


.intro_text {
    display: block;
    margin-left: 150px;
}


.intro_text P {
    font-family: 'Platypi', serif;
    color: #fff;
    margin-bottom: 10px;
}

.intro_text img {
    width: 200px;
}

.big_img_1 {
    width: 100%;
    max-width: 60vw;
    max-height: 595px;
    display: flex;
    justify-self: flex-end;
}

.intro_text h1 {
    color: #fff;
    font-size: 80px;
    padding: 0;
    margin: -20px 0;
}

.xuan {
    display: flex;
}

.xuan button {
    border-radius: 999px;
    border: none;
    padding: 10px 30px;
    width: 25%;
    font-family: 'Platypi', serif;
    font-weight: bold;
    color: var(--green);
    margin-left: 20px;
}



.intro_text .des_p {
    font-size: 24px;
    color: var(--cream);
    width: 80%;
}

.description {
    padding: 50px 150px;
    background: var(--green-light);
}

.description h1 {
    font-size: 60px;
}

.description p {
    font-size: 20px;
    margin-top: 20px;
    color: var(--text);
    width: 100%;
    line-height: 1.8;
}

.menu {
    display: block;
    text-align: center;
}

.menu img {
    width: 40px;
    margin-top: 50px;
}

.menu h1 {
    font-size: 20px;
    font-weight: bold;
}

.danh-muc {
    display: flex;
    justify-content: center;
    gap: 64px;
    /* chỉnh 32–64px tùy thích */
}

.danh-muc div {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;

}

.danh-muc img {
    width: 200px;
    height: 200px;
    border-radius: 999px;
    object-fit: cover;
}

.danh-muc p {
    margin-top: 16px;
    max-width: 220px;
    color: var(--green);
    font-size: 18px;
}


.thong-diep {
    background: var(--green);

}

.td-tong {
    display: flex;
}

.td-tong img {
    width: 300px;
    height: 300px;
    position: relative;
    z-index: 0;
}

.td-tong .caytrai {
    margin-right: 100px;
}

.td-tong .cayphai {
    margin-top: 250px;
}

.td-text {
    margin-left: -150px;
    margin-right: -150px;
    margin-top: 150px;
    color: #fff;
    position: relative;
    z-index: 1;
    align-self: center;
    font-size: 20px;
    padding-bottom: 100px;
    justify-content: space-evenly;
}

.txt1 {
    margin-bottom: 20px;
}

.text-end {
    text-align: right;
    font-weight: 500;
    font-size: 25px;
    font-family: 'Platypi', serif;
    color: var(--cream);
    margin-top: 20px;
}


/* ====== SECTION ====== */
.khong-gian {
    background: var(--green-bg);
    padding: 50px 0 120px;
    text-align: center;
    font-family: 'Times New Roman', serif;
}

/* ====== HEADER ====== */
.khong-gian .head img {
    width: 25%;
}

.khong-gian .head>h1 {
    font-size: 30px;
    letter-spacing: 2px;
    color: var(--green);
    margin-bottom: 80px;
    margin-top: -30px;
}

/* ====== MENU GRID ====== */
.kg-menu {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    row-gap: 60px;
    column-gap: 120px;
}

/* ====== ITEM ====== */
.kg-menu>div {
    display: flex;
    align-items: center;
    gap: 20px;
    justify-content: center;
}

/* ====== SỐ ====== */
.kg-menu>div>h1 {
    font-size: 64px;
    color: var(--green);
    font-weight: 700;
    min-width: 50px;
}

/* ====== KHỐI NỘI DUNG ====== */
.kg-menu>div>div {
    background: #8ef9c1c1;
    border-radius: 999px;
    padding: 5px 36px;
    min-width: 360px;
    text-align: center;
}

/* ====== TITLE ====== */
.kg-menu>div>div h1 {
    font-size: 20px;
    color: var(--circle-text);
    margin-bottom: 6px;
}

/* ====== SUBTEXT ====== */
.kg-menu>div>div p {
    font-size: 14px;
    color: var(--brown-bg);
    letter-spacing: 1px;
}

/* ====== ITEM 5 Ở GIỮA ====== */
.kg-menu>div:nth-child(5) {
    grid-column: 1 / -1;
    justify-content: center;
}

/* ====== KHU VUI CHƠI TRẺ EM ====== */
#khu-vui-choi {
    padding: 50px 0;
}

#khu-vui-choi>h1 {
    font-size: 70px;
    color: var(--green);
    text-align: center;
    letter-spacing: 2px;
}

/* ====== CONTAIN KVC ====== */
.contain-kvc {
    display: flex;
    align-items: center;
    gap: 150px;
    margin-top: -100px;
    width: 100%;
    justify-content: center;
    justify-self: center
}

.contain-kvc>img {
    width: 40%;
    object-fit: contain;
    max-height: 650px;
}

/* ====== KVC TEXT ====== */
.kvc-text {
    flex: 1;
}

.kvc-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 25px;
}

.kvc-head img {
    width: 50px;
    height: 50px;
}

.kvc-head h1 {
    font-size: 30px;
    color: var(--green);
    margin: 0;
}

/* ====== KVC DES LIST ====== */
.kvc-des {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
}

.kvc-des li {
    background: rgba(255, 239, 212, 0.8);
    border-radius: 999px;
    padding: 12px;
    color: var(--circle-text);
    font-size: 16px;
    width: 150px;
    height: 150px;
    text-align: center;
    justify-content: center;
    align-items: center;
    display: flex;
    font-family: 'Platypi', serif;
    font-weight: bold;
}

/* ====== KVC DES TEXT ====== */
.kvc-des-text {
    font-size: 18px;
    color: var(--text);
    line-height: 1.8;
    margin-bottom: 80px;
    text-align: justify;
    justify-self: center;
    width: 80%;
    margin-top: 40px;
}

/* ====== HOẠT ĐỘNG THƯỜNG KỲ ====== */
.hoat-dong-thuong-ky {
    margin-top: 40px;
}

.hoat-dong-thuong-ky>h1 {
    font-size: 40px;
    color: var(--green);
    text-align: center;
}

/* ====== HDTK CONTAIN ====== */
.hdtk-contain {
    display: block;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    align-items: center;
    position: relative;
    width: 100%;
    justify-content: center;
    justify-self: center;

}

.hdtk-contain>div {
    display: flex;
    align-items: center;
    text-align: center;
    border-radius: 15px;
    height: fit-content;
    justify-content: center;

}

.hdtk-contain div p {
    background: #8ef9c1c1;
    padding: 30px;
    border-radius: 999px;
    margin: 0 20px;
}

.hdtk-contain img {
    width: 150px;
    height: 150px;
    margin-bottom: 20px;
    object-fit: contain;
}

.hdtk-contain p {
    font-size: 16px;
    color: var(--text);
    line-height: 1.6;
    font-size: 24px;
}

.hdtk-contain .hdtk-trai,
.hdtk-contain .hdtk-phai {
    position: absolute;
    width: 450px;
    height: auto;
    z-index: 0;
}

.hdtk-trai {
    top: -50px;
}

.hdtk-phai {
    right: -0.2px;
    bottom: -50px;
}

/* ====== CỜ VÀ THƯ VIỆN ====== */
.thu-vien {
    padding: 0px 150px;
    background: #fff;
}

.thu-vien-header {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 60px;
}

.thu-vien-header h2 {
    font-size: 60px;
    color: var(--green);
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.thu-vien-header p {
    font-size: 18px;
    color: var(--text);
    line-height: 1.7;
}

.thu-vien-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 50px;
    align-items: center;
}

/* LEFT COLUMN */
.core-activities {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.core-head {
    display: flex;
    align-items: center;
    gap: 12px;
}

.core-head img {
    width: 32px;
    height: 32px;
}

.core-head h3 {
    font-size: 28px;
    color: var(--green);
    margin: 0;
}

.core-list {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.core-item {
    display: flex;
    align-items: center;
    gap: 18px;
    background: var(--green-light);
    border-radius: 999px;
    padding: 18px 26px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

.core-item img {
    width: 84px;
    height: 84px;
    object-fit: contain;
}

.core-item p {
    margin: 0;
    font-size: 26px;
    color: var(--text);
    line-height: 1.5;
}

/* RIGHT COLUMN */
.intergenerational {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.leaf-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(160px, 1fr));
    gap: 18px;
    width: 100%;
    max-width: 420px;
}

.leaf {
    background: #f2e3d3;
    border-radius: 0% 60% 0% 60%;
    padding: 18px 20px;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-brown);
    font-weight: bold;
    line-height: 1.4;
}

.leaf:nth-child(2) {
    border-radius: 60% 0% 60% 0%;
}

.leaf:nth-child(3) {
    margin: 0 auto;
    border-radius: 60% 0% 60% 0%;
}

.leaf:nth-child(4) {
    margin: 0 auto;
    border-radius: 0% 60% 0% 60%;
    background: transparent;
    color: var(--green);
    font-size: 26px;
    font-family: 'Platypi', serif;
    font-weight: bold;
    padding: 0;
    justify-self: flex-start;
    align-items: flex-start;
}

.inter-title {
    text-align: center;
    color: var(--green);
    font-size: 26px;
    letter-spacing: 1px;
    margin-top: 10px;
}

.thu-vien-image {
    margin-top: 40px;
    text-align: center;
}

.thu-vien-image img {
    width: 75%;
}

/* ====== SÂN CẦU LÔNG ====== */
.cau-long {
    padding: 20px 0;
    background: #fff;
}

.cau-long-header {
    text-align: left;
    max-width: 800px;
    margin-bottom: 60px;
    padding: 0 150px;
}

.cau-long-header h2 {
    font-size: 60px;
    color: var(--green);
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.cau-long-header p {
    font-size: 20px;
    color: var(--text);
    line-height: 1.7;
}

.cau-long-content {
    display: flex;
    gap: 0px;
    align-items: center;
}

.cau-long-image {
    flex: 1;
    width: 45%;
}

.cau-long-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.cau-long-features {
    flex: 1;
    display: flex;
    gap: 30px;
}

.feature {
    background: var(--green-light);
    border-radius: 999px;
    padding: 80px 40px;
    width: 25%;
    font-family: 'Platypi', serif;
    font-weight: bold;
    text-align: center;
    justify-content: center;
    align-items: center;
    display: flex;
    color: var(--green);
}

.feature p {
    margin: 0;
    font-size: 18px;
    color: var(--green);
    line-height: 1.6;
    text-align: center;
}

/* ====== AN NHIÊN HỘI QUÁN ====== */
.an-nhien {
    padding: 80px 0 0;
    background: #fff;
}

.an-nhien-top {
    display: flex;
    gap: 60px;
    align-items: flex-start;
    margin-bottom: 60px;
    justify-content: center;
    font-size: 200px;
}

.an-nhien-desc {
    flex: 1;
    max-width: 55%;
    justify-content: center;
}

.an-nhien-desc p {
    font-size: 18px;
    color: var(--text);
    line-height: 1.8;
    margin-bottom: 20px;
    text-align: justify;
}

.an-nhien-title {
    flex-shrink: 0;
}

.an-nhien-title h2 {
    font-size: 60px;
    color: var(--green);
    letter-spacing: 2px;
    line-height: 1.2;
    text-align: right;
}

.an-nhien-features {
    display: flex;
    gap: 25px;
    justify-content: center;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.oval {
    background: var(--green-light);
    border-radius: 50%;
    width: 20%;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 60px;
}

.oval p {
    margin: 0;
    font-size: 24px;
    color: var(--green);
    font-weight: 700;
    line-height: 1.5;
    text-align: center;
    font-family: 'Platypi', serif;
}

.an-nhien-image {
    text-align: center;
}

.an-nhien-image img {
    width: 100%;
    height: auto;
}

/* ====== HỘI TRƯỜNG NGHỆ THUẬT ====== */
.hoi-truong {
    padding: 0px;
    background: #fff;
    margin-top: -7px;
}

.hoi-truong-container {
    display: flex;
    gap: 80px;
    align-items: center;
}

.hoi-truong-content {
    flex: 1;
    max-width: 50%;
    padding: 0 150px;
}

.hoi-truong-content h2 {
    font-size: 60px;
    color: var(--green);
    letter-spacing: 2px;
    line-height: 1.2;
    margin-bottom: 30px;

}

.hoi-truong-content .desc {
    font-size: 18px;
    color: var(--text);
    line-height: 1.8;
    margin-bottom: 50px;
}

.hoi-truong-activities {
    display: flex;
    flex-wrap: wrap;
    width: 460px;
    /* 200 + 200 + gap */
    margin: 0 auto;
    gap: 40px;
    justify-content: center;
}

/* circle giữ nguyên */
.hoi-truong-activities .circle {
    background: var(--cream);
    border-radius: 50%;
    width: 200px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
    font-size: 24px;
    color: var(--circle-text);
    font-weight: 600;
    line-height: 1.5;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
    font-family: 'Platypi', serif;
}

/* circle thứ 3 xuống giữa */
.hoi-truong-activities .circle:nth-child(3) {
    display: flex;
    justify-content: center;
}

.hoi-truong-image {
    flex: 1;
    max-width: 100%;
}

.hoi-truong-image img {
    width: 90%;
    height: auto;
    display: flex;
    justify-self: flex-end;
}

/* ====== CÁCH THỨC THAM GIA ====== */
.tham-gia {
    padding: 80px 150px;
    background: var(--green-light);
}

.tham-gia-container {
    display: flex;
    gap: 50px;
    align-items: center;
}

.tham-gia-content {
    flex: 1;
    width: 100%;
}

.tham-gia-content h2 {
    font-size: 40px;
    color: var(--green);
    letter-spacing: 2px;
    margin-bottom: 50px;
    font-weight: 700;
}

.method {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-bottom: 40px;
    width: 80%;
}

.method .number {
    font-size: 80px;
    color: var(--green);
    font-weight: 700;
    font-family: 'Platypi', serif;
    line-height: 1;
    flex-shrink: 0;
    justify-content: center;
    text-align: center;
}

.method .pill {
    background: var(--green);
    color: #fff;
    border-radius: 999px;
    padding: 25px 40px;
    font-size: 22px;
    line-height: 1.6;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    font-family: 'Platypi', serif;
    font-weight: 700;
    justify-content: center;
    text-align: center;
}

.method .pill strong {
    font-size: 22px;
    font-weight: 700;
}

.tagline {
    margin-top: 60px;
    font-size: 20px;
    color: var(--green);
    font-weight: 500;
    line-height: 1.6;
}

.tham-gia-image {
    flex: 1;
    max-width: 50%;
}

.tham-gia-image img {
    width: 600px;
    height: auto;
    border-radius: 12px;
}

.number span {
    font-size: 26px;
    display: block;
    font-weight: 700;
}

/* ====== ANIMATIONS ====== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Animation classes */
.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.8s ease-out forwards;
}

.animate-fade-in-right {
    animation: fadeInRight 0.8s ease-out forwards;
}

/* ====== BACK TO TOP BUTTON ====== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--green);
    color: #fff;
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    z-index: 999;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.back-to-top:hover {
    background: #0d6a3f;
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.3);
}

.back-to-top.show {
    display: flex;
    animation: slideDown 0.4s ease-out;
}

/* ====== SMOOTH SCROLL ====== */
html {
    scroll-behavior: smooth;
}

/* ====== MOBILE RESPONSIVE ====== */
@media (max-width: 767px) {

    /* General adjustments */
    body {
        font-size: 14px;
    }

    h1,
    h2,
    h3 {
        font-size: 28px !important;
        letter-spacing: 0.5px;
    }

    section {
        padding: 20px 20px !important;
    }

    .navbar {
        padding: 20px !important;
        position: relative;
        /* Để box menu absolute định vị đúng */
    }

    /* Hamburger menu display */
    .hamburger {
        display: flex !important;
        z-index: 1001;

    }

    /* Box chứa menu khi mở */
    .nav {
        display: none;
        flex-direction: column !important;
        position: absolute;
        top: 70px;
        /* Cách navbar một chút để không chồng lên */
        left: 0;
        width: 100%;
        background: var(--cream);
        /* Màu nền nhẹ nhàng, dễ nhìn */
        padding: 20px 20px 30px;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        border-radius: 0 0 20px 20px;
        /* Bo góc dưới cho đẹp */
        transition: all 0.4s ease-in-out;
        /* Transition mượt khi mở/đóng */
        opacity: 0;
        transform: translateY(-20px);
        visibility: hidden;
    }

    .nav.active {
        display: flex;
        opacity: 1;
        transform: translateY(0);
        visibility: visible;
    }

    /* Các link trong menu mobile */
    .nav a {
        margin: 12px 0;
        padding: 14px 20px;
        text-align: center;
        background: var(--cream);
        /* Màu nút xanh chủ đạo */
        color: var(--green) !important;
        /* Chữ trắng cho nổi bật */
        border-radius: 999px;
        font-weight: bold;
        font-size: 16px;
        transition: all 0.3s ease;
        box-shadow: 0 4px 10px rgba(24, 166, 93, 0.2);
    }

    .nav a:hover {
        background: #0d6a3f;
        /* Màu xanh đậm hơn khi hover */
        transform: translateY(-3px);
        box-shadow: 0 8px 20px rgba(24, 166, 93, 0.3);
    }

    /* Ẩn nút "ĐĂNG KÝ NGAY!" trên mobile */
    .xuan button {
        display: none !important;
    }

    /* Introduction */
    .intro_sum {
        flex-direction: column;
    }

    .intro_text {
        margin-left: 0;
        text-align: center;
    }


    .intro_text h1 {
        font-size: 50px !important;
        margin: 0;
        text-align: center;
    }

    .intro_text .des_p {
        width: 100%;
        font-size: 18px;
    }

    .intro_text img {
        width: 150px;
    }

    .xuan {
        justify-content: center;
    }

    .big_img_1 {
        width: 100%;
        margin-top: 20px;
        display: none;
    }

    /* Description */
    .description {
        padding: 40px 20px !important;
    }

    .description h1 {
        font-size: 40px !important;
    }

    .description p {
        font-size: 16px;
        width: 100%;
    }

    .menu img {
        width: 30px;
    }

    .menu h1 {
        font-size: 18px;
    }

    .danh-muc {
        flex-direction: column;
        gap: 32px;
    }

    .danh-muc div {
        width: 100%;
    }

    .danh-muc img {
        width: 150px;
        height: 150px;
    }

    .danh-muc p {
        font-size: 16px;
        max-width: 100%;
    }

    /* Thong diep */
    .td-tong {
        flex-direction: column;
    }

    .td-text {
        margin: 20px 0 !important;
        font-size: 16px;
        padding-bottom: 0;
    }

    .td-tong img {
        display: none;
    }

    .text-end {
        font-size: 20px;
    }

    /* Khong gian */
    .khong-gian {
        padding: 60px 20px 80px !important;
    }

    .khong-gian .head img {
        width: 100%;
    }

    .khong-gian .head>h1 {
        font-size: 24px !important;
        margin-bottom: 40px;
    }

    .kg-menu {
        grid-template-columns: 1fr !important;
        row-gap: 40px;
        column-gap: 0;
    }

    .kg-menu>div>div {
        min-width: auto;
        padding: 5px 20px;
    }

    .kg-menu>div>h1 {
        font-size: 48px;
    }

    /* Khu vui choi */
    #khu-vui-choi>h1 {
        font-size: 40px !important;
        margin-bottom: 40px;
    }

    .contain-kvc {
        flex-direction: column;
    }

    .contain-kvc>img {
        width: 100%;
    }

    .kvc-head img {
        width: 40px;
        height: 40px;
    }

    .kvc-head h1 {
        font-size: 24px !important;
    }

    .kvc-des {
        gap: 15px;
        justify-content: center;
    }

    .kvc-des li {
        width: 120px;
        height: 120px;
        font-size: 14px;
        padding: 10px;
    }

    .kvc-des-text {
        font-size: 16px;
        width: 100%;
        margin-bottom: 40px;
    }

    .hoat-dong-thuong-ky>h1 {
        font-size: 30px !important;
    }

    .hdtk-contain {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .hdtk-contain>div {
        flex-direction: column;
    }

    .hdtk-contain img {
        width: 120px;
        height: 120px;
        display: none;
    }

    .hdtk-contain p {
        font-size: 18px;
        margin: 0;
        padding: 20px;
    }

    .hdtk-trai,
    .hdtk-phai {
        display: none;
    }

    /* Thu vien */
    .thu-vien-header h2 {
        font-size: 40px !important;
    }

    .thu-vien-header p {
        font-size: 16px;
    }

    .thu-vien-content {
        grid-template-columns: 1fr !important;
        gap: 30px;
    }

    .core-head img {
        width: 24px;
        height: 24px;
    }

    .core-head h3 {
        font-size: 24px !important;
    }

    .core-item {
        padding: 14px 20px;
        gap: 14px;
    }

    .core-item img {
        width: 60px;
        height: 60px;
    }

    .core-item p {
        font-size: 18px;
    }

    .leaf-grid {
        grid-template-columns: 1fr !important;
        gap: 14px;
    }

    .leaf {
        border-radius: 20px !important;
        height: auto;
        padding: 20px;
        font-size: 16px;
    }

    .leaf:nth-child(2),
    .leaf:nth-child(3),
    .leaf:nth-child(4) {
        border-radius: 20px !important;
        margin: 0 !important;
    }

    .thu-vien-image img {
        width: 100%;
    }

    /* Cau long */
    .cau-long-header {
        padding: 0px !important;
    }

    .cau-long-header h2 {
        font-size: 30px !important;
        padding: 0 !important;
        width: 100%;
    }

    .cau-long-header p {
        font-size: 16px;

    }

    .cau-long-content {
        flex-direction: column;

    }

    .cau-long-image {
        width: 100%;
    }

    .cau-long-features {
        flex-direction: column;
        gap: 20px;
    }

    .feature {
        width: 100%;
        padding: 40px 20px;
        font-size: 16px;
        border-radius: 20px !important;
    }

    /* An nhien */
    .an-nhien-top {
        flex-direction: column;
    }

    .an-nhien-desc {
        max-width: 100%;
    }

    .an-nhien-desc p {
        font-size: 16px;
    }

    .an-nhien-title h2 {
        font-size: 40px !important;
        text-align: left;
    }

    .an-nhien-features {
        flex-direction: column;
        gap: 20px;
    }

    .oval {
        width: 100%;
        height: auto;
        border-radius: 20px !important;
        padding: 20px;
    }

    .oval p {
        font-size: 18px;
    }

    .an-nhien-image img {
        width: 100%;
    }

    /* Hoi truong */
 .hoi-truong-content {
     padding: 0 !important;
     width: 100%;
     max-width: 100% !important;
     text-align: left;
 }

 .hoi-truong-content h2 {
     font-size: 40px !important;
     width: 100%;
     text-align: left;
 }

 .hoi-truong-content .desc {
     font-size: 16px;
     line-height: 1.7;
 }

 .hoi-truong-activities {
     width: 100%;
     display: flex;
     flex-direction: column;
     gap: 20px;
     margin-top: 30px;
 }

 .hoi-truong-activities .circle {
     width: 100%;
     height: auto;
     padding: 24px 20px;
     font-size: 16px;
     line-height: 1.6;
     border-radius: 16px !important;
 }

 .hoi-truong-activities .circle:nth-child(3) {
     margin: 0 !important;
 }

 /* Ẩn ảnh mobile */
 .hoi-truong-image {
     display: none;
 }

    /* Tham gia */
    .tham-gia-container {
        flex-direction: column;
    }

    .tham-gia-content h2 {
        font-size: 30px !important;
    }

    .method {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        width: 100%;
    }

    .method .number {
        font-size: 60px;
    }

    .method .pill {
        padding: 20px;
        font-size: 18px;
        width: 100%;
        text-align: left;
    }

    .tagline {
        font-size: 18px;
    }

    .tham-gia-image img {
        display: none;
    }

    /* Back to top */
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
}