:root {
    --primary-color: #0056b3;
    --primary-light: #3385ff;
    --primary-dark: #003d82;
    --secondary-color: #ff6b00;
    --text-dark: #1a1a2e;
    --text-light: #555566;
    --bg-light: #f8fbff;
    --white: #ffffff;
    --shadow-soft: 0 10px 30px rgba(0, 86, 179, 0.08);
    --shadow-hover: 0 20px 40px rgba(0, 86, 179, 0.15);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: var(--transition);
    z-index: -1;
}

.btn:hover::before {
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    color: var(--white);
    box-shadow: 0 8px 20px rgba(0, 86, 179, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(0, 86, 179, 0.4);
    color: var(--white);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-color);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
    border: 2px solid transparent;
}

.btn-secondary:hover {
    border-color: var(--primary-light);
    transform: translateY(-3px);
    color: var(--primary-dark);
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    padding: 1rem 0;
}

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

.logo img {
    height: 50px;
    object-fit: contain;
}

.contact-header-info {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.contact-header-info i {
    margin-right: 0.5rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(51,133,255,0.1) 0%, rgba(255,255,255,0) 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
    position: relative;
    z-index: 1;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: 3.5rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.hero-text h1 span {
    color: transparent;
    background-clip: text;
    -webkit-background-clip: text;
    background-image: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.hero-text p {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
    max-width: 90%;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
}

.image-placeholder {
    width: 400px;
    height: 500px;
    background: linear-gradient(145deg, var(--white), #e6f0ff);
    border-radius: 30px;
    box-shadow: var(--shadow-hover);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    animation: float 6s ease-in-out infinite;
    border: 1px solid rgba(255,255,255,0.5);
}

.image-placeholder h2 {
    font-size: 3rem;
    color: var(--primary-light);
    opacity: 0.8;
}

.image-placeholder p {
    color: var(--text-light);
    margin-top: 1rem;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

/* Features Section */
.features {
    padding: 5rem 0;
    background: var(--white);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-dark);
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.03);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(0, 86, 179, 0.1);
}

.feature-card .icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #e6f0ff, #ffffff);
    color: var(--primary-color);
    font-size: 2.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    box-shadow: 0 10px 20px rgba(0, 86, 179, 0.1);
    transition: var(--transition);
}

.feature-card:hover .icon {
    background: var(--primary-color);
    color: var(--white);
    transform: rotateY(180deg);
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Specs Section */
.specs {
    padding: 5rem 0;
    background: var(--bg-light);
}


.specs-extra-features {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    text-align: left;
}

.sef-card {
    background: var(--white);
    border: 1px solid #f0f0f0;
    border-radius: 12px;
    padding: 1.2rem;
    display: flex;
    align-items: center;
    gap: 1.2rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    transition: var(--transition);
}

.sef-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    border-color: #e2e8f0;
}

.sef-icon {
    width: 50px;
    height: 50px;
    background: #fff1f0;
    color: #ff4d4f;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 10px;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.sef-text h4 {
    font-size: 1.05rem;
    color: var(--text-dark);
    margin-bottom: 0.3rem;
}

.sef-text p {
    font-size: 0.85rem;
    color: var(--text-light);
    margin: 0;
    line-height: 1.4;
}

.table-container {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

table {
    width: 100%;
    height: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 1.25rem 2rem;
    text-align: left;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

th {
    background: #fcfdfe;
    font-weight: 600;
    color: var(--primary-dark);
    width: 35%;
}

tr:last-child th, tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background-color: #f8fbff;
}

/* Contact Section */
.contact {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: var(--white);
}

.contact .section-title {
    color: var(--white);
}

.contact .section-title::after {
    background: var(--secondary-color);
}

.contact-wrapper {
    display: flex;
    gap: 4rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    padding: 3rem;
    backdrop-filter: blur(10px);
}

.contact-info {
    flex: 1;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.contact-info p {
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-info i {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.2);
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    font-size: 1.2rem;
}

.contact-info i.fa-zalo {
    background: #fff;
}

.contact-form {
    flex: 1;
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
}

.contact-form form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background: #fefefe;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 86, 179, 0.1);
}

.submit-btn {
    width: 100%;
    border: none;
    padding: 1.25rem;
}

/* Footer */
.footer {
    background: #002244;
    color: rgba(255,255,255,0.7);
    text-align: center;
    padding: 2rem 0;
}

/* Pricing */
.pricing {
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.original-price {
    font-size: 1.5rem;
    color: var(--text-light);
    text-decoration: line-through;
    opacity: 0.7;
}

.promo-price {
    font-size: 2.5rem;
    color: var(--secondary-color);
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(255, 107, 0, 0.2);
}

/* Product Main Image */
.hero-product-image {
    width: 100%;
    max-width: 500px;
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
    overflow: hidden;
    animation: float 6s ease-in-out infinite;
}

.product-main-img {
    width: 100%;
    height: auto;
    display: block;
}

/* Testimonials Section */
.testimonials {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--bg-light) 0%, #ffffff 100%);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
    position: relative;
    border-top: 5px solid var(--secondary-color);
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 4rem;
    color: rgba(255, 107, 0, 0.1);
    font-family: serif;
}

.stars {
    color: #ffc107;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.testimonial-card p {
    font-style: italic;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.testimonial-card h4 {
    color: var(--primary-dark);
    font-size: 1.1rem;
}

/* Specs layout updates */
.specs-content {
    display: flex;
    flex-wrap: wrap;
    gap: 3rem;
    align-items: stretch;
}

.specs-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
    position: sticky;
    top: 100px;
    justify-content: center;
}

.specs-img-fluid {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: var(--shadow-soft);
}

.specs 
.specs-extra-features {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    text-align: left;
}

.sef-card {
    background: var(--white);
    border: 1px solid #f0f0f0;
    border-radius: 12px;
    padding: 1.2rem;
    display: flex;
    align-items: center;
    gap: 1.2rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    transition: var(--transition);
}

.sef-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    border-color: #e2e8f0;
}

.sef-icon {
    width: 50px;
    height: 50px;
    background: #fff1f0;
    color: #ff4d4f;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 10px;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.sef-text h4 {
    font-size: 1.05rem;
    color: var(--text-dark);
    margin-bottom: 0.3rem;
}

.sef-text p {
    font-size: 0.85rem;
    color: var(--text-light);
    margin: 0;
    line-height: 1.4;
}

.table-container {
    flex: 2;
}

/* Problem Section */
.problem-section {
    padding: 5rem 0;
    background: #fdfdfd;
}

.text-center {
    text-align: center;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    max-width: 700px;
    margin: -1.5rem auto 3rem;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}

.problem-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.04);
    text-align: center;
    border: 1px solid #f0f0f0;
    transition: var(--transition);
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(255, 77, 79, 0.2);
}

.problem-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: #fff1f0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    margin: 0 auto 1.5rem;
}

.problem-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: var(--text-dark);
}

.problem-card p {
    font-size: 0.95rem;
    color: var(--text-light);
}

/* FAQ Section */
.faq-section {
    padding: 5rem 0;
    background: #f0f5fa;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.faq-item {
    background: var(--white);
    padding: 1.5rem 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-soft);
}

.faq-item h3 {
    font-size: 1.1rem;
    color: var(--primary-dark);
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.faq-item p {
    color: var(--text-light);
    padding-left: 2rem;
}

/* Special Offer Block */
.special-offer {
    flex: 1;
    background: transparent;
    padding-right: 2rem;
}

.offer-badge {
    display: inline-block;
    background: var(--secondary-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.special-offer h3 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.offer-desc {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.offer-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.offer-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.offer-list li i {
    color: var(--secondary-color);
    font-size: 1.5rem;
    margin-top: 0.2rem;
}

.offer-text strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 0.2rem;
}

.offer-text span {
    font-size: 0.95rem;
    opacity: 0.8;
}

/* Footer layout updates */
.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.footer-info {
    text-align: center;
    margin-bottom: 2rem;
}

.footer-info h3 {
    color: var(--white);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.footer-info p {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.footer-info i {
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1.5rem;
    width: 100%;
}

/* Top Promo Banner */
.top-promo-banner {
    background: linear-gradient(90deg, var(--secondary-color), #ff4d4f);
    color: var(--white);
    padding: 0.8rem 0;
    font-size: 1rem;
    position: relative;
    z-index: 101;
}

.banner-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.banner-text i {
    margin-right: 0.5rem;
    color: #ffeba1;
}

/* Countdown Timer General */
.countdown-timer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cd-box {
    background: rgba(0,0,0,0.2);
    border-radius: 6px;
    padding: 0.4rem 0.6rem;
    display: flex;
    align-items: baseline;
    gap: 0.2rem;
    min-width: 55px;
    justify-content: center;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.cd-box span {
    font-weight: 700;
    font-size: 1.1rem;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.cd-box small {
    font-size: 0.7rem;
    opacity: 0.8;
}

/* Form Countdown */
.form-countdown-wrapper {
    background: #fff8f8;
    border: 1px dashed #ff4d4f;
    border-radius: 10px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.form-cd-title {
    color: #ff4d4f;
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.form-cd-title i {
    animation: pulse 1s infinite alternate;
}

.form-cd .cd-box {
    background: #ff4d4f;
    color: var(--white);
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    padding: 0.6rem;
    min-width: 65px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(255, 77, 79, 0.2);
}

.form-cd .cd-box span {
    font-size: 1.7rem;
}

.form-cd .cd-box small {
    font-size: 0.65rem;
    letter-spacing: 0.5px;
}

.cd-colon {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ff4d4f;
    margin: 0 0.2rem;
}

/* Spec Highlights */
.specs-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.highlight-card {
    background: var(--white);
    border: 1px solid #f0f0f0;
    border-radius: 12px;
    padding: 2rem 1rem;
    text-align: center;
    transition: var(--transition);
}

.highlight-card:hover {
    border-color: #ff4d4f;
    box-shadow: 0 10px 20px rgba(255, 77, 79, 0.1);
}

.hl-icon {
    width: 50px;
    height: 50px;
    background: #fff1f0;
    color: #ff4d4f;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

.highlight-card h4 {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.highlight-card p {
    font-size: 1.1rem;
    color: var(--text-dark);
    font-weight: 700;
}

/* Solutions Section */
.solutions-section {
    padding: 5rem 0;
    background: #fdfdfd;
}

.solution-row {
    display: flex;
    align-items: center;
    gap: 4rem;
    margin-bottom: 5rem;
}

.solution-row:nth-child(even) {
    flex-direction: row-reverse;
}

.solution-row:last-child {
    margin-bottom: 0;
}

.solution-text {
    flex: 1;
}

.solution-badge {
    display: inline-block;
    background: #fff1f0;
    color: #ff4d4f;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.solution-badge i {
    margin-right: 0.4rem;
}

.solution-title {
    font-size: 2rem;
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.solution-desc {
    font-size: 1.05rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.solution-tags {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.solution-tags .dark-tag {
    background: #1a202c;
    color: var(--white);
    padding: 0.6rem 1rem;
    border-radius: 6px;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.dark-tag i {
    color: #ff4d4f;
}

.solution-image-container {
    flex: 1;
    background: var(--white);
    border: 1px solid #f0f0f0;
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    min-width: 0;
}

.sol-img-wrapper {
    background: transparent;
    border-radius: 12px;
    padding: 0;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.sol-img-bottom-tags {
    display: flex;
    gap: 0.8rem;
    justify-content: center;
    flex-wrap: wrap;
}

.sol-img-bottom-tags span {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--primary-dark);
    font-weight: 600;
}

/* Trusted By Section */
.trusted-by {
    padding: 5rem 0;
    background: #fdfdfd;
}

.trusted-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.trusted-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    border: 1px solid #f0f0f0;
    transition: var(--transition);
}

.trusted-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.trusted-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.trusted-card-info {
    padding: 1.5rem;
}

.trusted-card-info h4 {
    font-size: 1.1rem;
    color: var(--primary-dark);
    margin-bottom: 0.3rem;
}

.trusted-card-info p {
    font-size: 0.9rem;
    color: var(--text-light);
}

.trusted-badges {
    display: flex;
    gap: 1.5rem;
    justify-content: space-between;
    flex-wrap: wrap;
}

.t-badge-card {
    flex: 1;
    min-width: 250px;
    background: var(--white);
    border: 1px solid #f0f0f0;
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.2rem;
    box-shadow: 0 4px 10px rgba(0,0,0,0.02);
}

.t-badge-icon {
    width: 50px;
    height: 50px;
    background: #fff1f0;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.t-badge-text h4 {
    font-size: 1.05rem;
    color: var(--text-dark);
    margin-bottom: 0.2rem;
}

.t-badge-text p {
    font-size: 0.85rem;
    color: var(--text-light);
    margin: 0;
}

/* Footer Redesign */
.footer {
    background: #111827 !important;
    color: #9ca3af !important;
    padding: 4rem 0 0 0 !important;
    font-size: 0.95rem;
    text-align: left !important;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.2fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-title {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-desc {
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.footer-certs {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.cert-badge {
    background: #374151;
    color: #d1d5db;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.footer-hotline-box {
    background: #ef4444;
    color: var(--white);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    display: inline-block;
    width: 100%;
}

.fh-number {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.fh-text {
    font-size: 0.85rem;
    opacity: 0.9;
}

.footer-address {
    line-height: 1.6;
    margin-bottom: 1.5rem;
    display: flex;
    gap: 0.6rem;
    align-items: flex-start;
}

.footer-address i {
    margin-top: 0.3rem;
}

.footer-social {
    display: flex;
    gap: 0.8rem;
}

.social-icon {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    font-size: 1rem;
    transition: var(--transition);
}

.social-icon:hover {
    transform: translateY(-3px);
    color: white;
}

.social-icon.fb { background: #1877f2; }
.social-icon.zl { background: #0084ff; }
.social-icon.ph { background: #ef4444; }

.footer-bottom {
    border-top: 1px solid #1f2937 !important;
    padding: 1.5rem 0 !important;
    text-align: center;
    font-size: 0.85rem;
}
@media (max-width: 900px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Floating Contact Buttons */
.floating-contact {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 999;
}

.f-btn {
    display: flex;
    align-items: center;
    background: var(--white);
    border-radius: 50px;
    padding: 0.3rem 1.2rem 0.3rem 0.3rem;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: var(--transition);
    border: 2px solid;
    gap: 0.8rem;
}

.f-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.f-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
}

.f-text {
    font-weight: 700;
    font-size: 0.95rem;
}

/* Facebook Button */
.fb-btn {
    border-color: #1877F2;
}
.fb-btn .f-icon {
    background: #1877F2;
}
.fb-btn .f-text {
    color: #1877F2;
}

/* Phone Button */
.phone-btn {
    border-color: #25D366;
}
.phone-btn .f-icon {
    background: #25D366;
    animation: pulse-ring 2s infinite;
}
.phone-btn .f-text {
    color: #25D366;
}

/* Zalo Button */
.zalo-btn {
    border-color: #0068FF;
}
.zalo-btn .f-icon {
    background: #0068FF;
}
.zalo-btn .f-text {
    color: #0068FF;
}
.zalo-text-icon {
    font-size: 0.75rem;
    font-weight: bold;
    font-family: Arial, sans-serif;
}

@keyframes pulse-ring {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5); }
    70% { box-shadow: 0 0 0 10px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Responsive */
@media (max-width: 900px) {
    .floating-contact {
        bottom: 1.5rem;
        right: 1.5rem;
        gap: 0.8rem;
    }
    .f-btn {
        padding: 0.2rem 1rem 0.2rem 0.2rem;
    }
    .f-icon {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    .f-text {
        font-size: 0.9rem;
    }
    .zalo-text-icon {
        font-size: 0.65rem;
    }
    .trusted-grid {
        grid-template-columns: 1fr;
    }
    .trusted-badges {
        flex-direction: column;
    }
    .solution-row, .solution-row:nth-child(even) {
        flex-direction: column;
        gap: 2rem;
    }
    .pricing {
        justify-content: center;
    }
    .specs-content {
        flex-direction: column;
    }
    .specs-image {
        max-width: 100%;
        margin-bottom: 2rem;
    }
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .contact-wrapper {
        flex-direction: column;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }

    .special-offer {
        padding-right: 0;
        margin-bottom: 2rem;
    }
}