* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    line-height: 1.6;
    background: #f7f9fc; /* Màu nền nhạt */
    color: #2d3748; /* Màu chữ chính */
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Animation */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.fade-in { animation: fadeIn 1s ease-in; }
.slide-up { animation: slideUp 1s ease-out; }
.pulse { animation: pulse 1.5s infinite; }

/* Header */
header {
    background: linear-gradient(135deg, #ff6f61, #feca57); /* Gradient cam san hô - vàng */
    color: #fff;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(255, 111, 97, 0.3); /* Ánh cam nhẹ */
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

header h1 {
    font-size: 1.8rem;
    font-weight: 600;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
}

header nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 1.5rem;
    font-weight: 500;
    transition: color 0.3s;
}

header nav a:hover {
    color: #4a90e2; /* Xanh dương khi hover */
}

@media (max-width: 768px) {
    header .container { flex-direction: column; }
    header nav { margin-top: 1rem; }
    header nav a { margin: 0 0.5rem; }
}

/* Giới thiệu */
.intro {
    background: url('https://via.placeholder.com/1200x500?text=Order+Taobao') no-repeat center/cover;
    color: #fff;
    text-align: center;
    padding: 120px 0;
    margin-top: 60px;
    position: relative;
}

.intro::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 111, 97, 0.6), rgba(74, 144, 226, 0.6)); /* Gradient overlay */
}

.intro .container {
    position: relative;
    z-index: 1;
}

.intro h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.4);
}

.intro p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .intro { padding: 80px 0; }
    .intro h2 { font-size: 2rem; }
    .intro p { font-size: 1rem; }
}

/* Button chung */
.btn {
    display: inline-block;
    padding: 12px 25px;
    background: linear-gradient(135deg, #ff6f61, #feca57); /* Gradient nút */
    color: #fff;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 3px 10px rgba(255, 111, 97, 0.3);
}

.btn:hover {
    background: linear-gradient(135deg, #e64a19, #f7b731); /* Gradient hover */
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(255, 111, 97, 0.5);
}

/* Sản phẩm */
.products {
    padding: 80px 0;
    background: #fff;
}

.products h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #ff6f61; /* Màu cam san hô */
    text-shadow: 1px 1px 3px rgba(255, 111, 97, 0.2);
}

.product-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.product-item {
    background: #fff;
    padding: 1.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.1); /* Ánh xanh nhẹ */
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(74, 144, 226, 0.3); /* Ánh xanh đậm hơn */
}

.product-item img {
    max-width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 10px;
    transition: transform 0.3s;
}

.product-item:hover img {
    transform: scale(1.05);
}

.product-item h3 {
    font-size: 1.4rem;
    margin: 1rem 0 0.5rem;
    color: #2d3748;
}

.product-item p {
    font-size: 1rem;
    color: #718096; /* Xám nhẹ */
    margin-bottom: 1rem;
}

@media (max-width: 480px) {
    .product-item { padding: 1rem; }
    .product-item img { height: 180px; }
}

/* TikTok */
.tiktok {
    padding: 80px 0;
    background: #f7f9fc;
    text-align: center; /* Đảm bảo mọi nội dung con căn giữa */
}

.tiktok h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: #4a90e2; /* Xanh dương */
    text-shadow: 1px 1px 3px rgba(74, 144, 226, 0.2);
}

.tiktok p {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.tiktok iframe {
    width: 100%;
    max-width: 500px; /* Giới hạn chiều rộng tối đa */
    height: 600px;
    margin: 2rem auto; /* Căn giữa ngang */
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(255, 111, 97, 0.2); /* Ánh cam nhẹ */
    display: block; /* Quan trọng: đảm bảo iframe là block và căn giữa */
}

@media (max-width: 768px) {
    .tiktok iframe {
        height: 400px; /* Giảm chiều cao trên mobile */
    }
}
/* Liên hệ */
.contact {
    padding: 80px 0;
    background: #fff;
}

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: #ff6f61; /* Cam san hô */
    text-shadow: 1px 1px 3px rgba(255, 111, 97, 0.2);
}

.contact p {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.contact-info {
    background: #f7f9fc;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.1); /* Ánh xanh nhẹ */
}

.contact-info p {
    font-size: 1.2rem;
    margin: 1rem 0;
}

.contact-info a {
    color: #4a90e2; /* Xanh dương */
    text-decoration: none;
    transition: color 0.3s;
}

.contact-info a:hover {
    color: #2b6cb0; /* Xanh đậm hơn */
}

@media (max-width: 768px) {
    .contact-info { padding: 1.5rem; }
}

/* Footer */
footer {
    background: linear-gradient(135deg, #2d3748, #4a5568); /* Gradient xám đậm */
    color: #fff;
    text-align: center;
    padding: 1.5rem;
    font-size: 1rem;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    line-height: 1.6;
    background: #f7f9fc;
    color: #2d3748;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Animation */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { transform: translateY(50px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes pulse { 0% { transform: scale(1); } 50% { transform: scale(1.05); } 100% { transform: scale(1); } }

.fade-in { animation: fadeIn 1s ease-in; }
.slide-up { animation: slideUp 1s ease-out; }
.pulse { animation: pulse 1.5s infinite; }

/* Header */
header {
    background: linear-gradient(135deg, #ff6f61, #feca57);
    color: #fff;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(255, 111, 97, 0.3);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

header h1 { font-size: 1.8rem; font-weight: 600; text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2); }
header nav a { color: #fff; text-decoration: none; margin: 0 1.5rem; font-weight: 500; transition: color 0.3s; }
header nav a:hover { color: #4a90e2; }

@media (max-width: 768px) {
    header .container { flex-direction: column; }
    header nav { margin-top: 1rem; }
    header nav a { margin: 0 0.5rem; }
}

/* Giới thiệu */
.intro {
    background: url('https://via.placeholder.com/1200x500?text=Order+Taobao') no-repeat center/cover;
    color: #fff;
    text-align: center;
    padding: 120px 0;
    margin-top: 60px;
    position: relative;
}

.intro::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 111, 97, 0.6), rgba(74, 144, 226, 0.6));
}

.intro .container { position: relative; z-index: 1; }
.intro h2 { font-size: 3rem; margin-bottom: 1.5rem; text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.4); }
.intro p { font-size: 1.3rem; margin-bottom: 2rem; }

@media (max-width: 768px) {
    .intro { padding: 80px 0; }
    .intro h2 { font-size: 2rem; }
    .intro p { font-size: 1rem; }
}

/* Button chung */
.btn {
    display: inline-block;
    padding: 12px 25px;
    background: linear-gradient(135deg, #ff6f61, #feca57);
    color: #fff;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 3px 10px rgba(255, 111, 97, 0.3);
}

.btn:hover {
    background: linear-gradient(135deg, #e64a19, #f7b731);
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(255, 111, 97, 0.5);
}

/* Sản phẩm */
.products {
    padding: 100px 0;
    background: #fff;
    margin-top: 60px;
}

.products h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #ff6f61;
    text-shadow: 1px 1px 3px rgba(255, 111, 97, 0.2);
}

.product-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* 3 sản phẩm mỗi dòng */
    gap: 2rem;
}

.product-item {
    background: #fff;
    padding: 1.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(74, 144, 226, 0.3);
}

.product-item img {
    max-width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 10px;
    transition: transform 0.3s;
}

.product-item:hover img { transform: scale(1.05); }
.product-item h3 { font-size: 1.4rem; margin: 1rem 0 0.5rem; color: #2d3748; }
.product-item p { font-size: 1rem; color: #718096; margin-bottom: 1rem; }

.product-item .btn-detail {
    background: linear-gradient(135deg, #4a90e2, #63b3ed);
    margin-right: 10px;
}

.product-item .btn-detail:hover {
    background: linear-gradient(135deg, #2b6cb0, #4299e1);
}

@media (max-width: 768px) {
    .product-list { grid-template-columns: repeat(3, 1fr); } /* Vẫn 3 cột trên tablet */
}

@media (max-width: 480px) {
    .product-list { grid-template-columns: 1fr; } /* 1 cột trên mobile nhỏ */
    .product-item { padding: 1rem; }
    .product-item img { height: 180px; }
}

/* Chi tiết sản phẩm */
.product-detail {
    padding: 100px 0;
    background: #fff;
    margin-top: 60px;
}

.product-detail h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #ff6f61;
}

.product-content {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.product-media {
    flex: 1;
    min-width: 300px;
}

.product-media iframe {
    width: 100%;
    height: 400px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(255, 111, 97, 0.2);
}

.product-images {
    margin-top: 1rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.product-images img {
    width: 150px;
    height: 150px;
    object-fit: cover;
    border-radius: 10px;
    transition: transform 0.3s;
}

.product-images img:hover {
    transform: scale(1.05);
}

.product-info {
    flex: 1;
    min-width: 300px;
}

.product-info p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #718096;
}

@media (max-width: 768px) {
    .product-content { flex-direction: column; }
    .product-media iframe { height: 300px; }
}

/* TikTok */
.tiktok {
    padding: 80px 0;
    background: #f7f9fc;
    text-align: center;
}

.tiktok h2 { font-size: 2.5rem; margin-bottom: 1.5rem; color: #4a90e2; text-shadow: 1px 1px 3px rgba(74, 144, 226, 0.2); }
.tiktok p { font-size: 1.2rem; margin-bottom: 2rem; }
.tiktok iframe { width: 100%; max-width: 500px; height: 600px; margin: 2rem auto; border-radius: 15px; box-shadow: 0 5px 15px rgba(255, 111, 97, 0.2); display: block; }

@media (max-width: 768px) { .tiktok iframe { height: 400px; } }

/* Liên hệ */
.contact { padding: 80px 0; background: #fff; }
.contact h2 { text-align: center; font-size: 2.5rem; margin-bottom: 1.5rem; color: #ff6f61; text-shadow: 1px 1px 3px rgba(255, 111, 97, 0.2); }
.contact p { text-align: center; font-size: 1.2rem; margin-bottom: 2rem; }
.contact-info { background: #f7f9fc; padding: 2rem; border-radius: 15px; box-shadow: 0 5px 15px rgba(74, 144, 226, 0.1); }
.contact-info p { font-size: 1.2rem; margin: 1rem 0; }
.contact-info a { color: #4a90e2; text-decoration: none; transition: color 0.3s; }
.contact-info a:hover { color: #2b6cb0; }

@media (max-width: 768px) { .contact-info { padding: 1.5rem; } }

/* Footer */
footer {
    background: linear-gradient(135deg, #2d3748, #4a5568);
    color: #fff;
    text-align: center;
    padding: 1.5rem;
    font-size: 1rem;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
}