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

:root {
    --dark-gray: #1A1A1A;
    --dark-gray-light: #2C2C2C;
    --dark-gray-dark: #0D0D0D;
    --matte-silver: #C0C0C0;
    --matte-silver-light: #E0E0E0;
    --matte-silver-dark: #A0A0A0;
    --light-gold: #D4AF37;
    --light-gold-light: #E5C158;
    --light-gold-dark: #B8942E;
    --white: #FFFFFF;
    --white-gray: #FAFAFA;
    --text-primary: #1A1A1A;
    --text-secondary: #555555;
    --text-light: #888888;
    --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.16);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.2);
    --transition-fast: 0.3s ease;
    --transition-normal: 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--white);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
}

h1 {
    font-size: 3.2rem;
    font-weight: 800;
    color: var(--dark-gray);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 20px;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 16px;
}

p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 18px;
    line-height: 1.9;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--light-gold);
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 700;
    text-align: center;
    border-radius: 8px;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.btn-primary {
    background: linear-gradient(135deg, var(--light-gold), var(--light-gold-dark));
    color: var(--white);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--light-gold-light), var(--light-gold));
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: transparent;
    color: var(--dark-gray);
    border: 2px solid var(--dark-gray);
}

.btn-secondary:hover {
    background: var(--dark-gray);
    color: var(--white);
}

.btn-outline-gold {
    background: transparent;
    color: var(--light-gold);
    border: 2px solid var(--light-gold);
}

.btn-outline-gold:hover {
    background: var(--light-gold);
    color: var(--white);
}

.btn-large {
    padding: 20px 60px;
    font-size: 1.3rem;
}

.btn-icon {
    display: flex;
    align-items: center;
    gap: 10px;
}

.card {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-fast);
}

.card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-8px);
}

.card-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.card:hover .card-img {
    transform: scale(1.08);
}

.card-content {
    padding: 30px;
}

.card-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 12px;
}

.card-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.card-price {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--light-gold);
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo img {
    height: 50px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark-gray);
    letter-spacing: 0.05em;
}

.logo-text span {
    color: var(--light-gold);
}

.nav {
    display: flex;
    gap: 40px;
}

.nav a {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    position: relative;
    letter-spacing: 0.02em;
}

.nav a:hover {
    color: var(--light-gold);
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--light-gold);
    transition: width var(--transition-fast);
    border-radius: 2px;
}

.nav a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.nav-toggle span {
    width: 30px;
    height: 3px;
    background: var(--dark-gray);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-6px, 7px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-6px, -7px);
}

.banner-section {
    margin-top: 90px;
    position: relative;
}

.carousel {
    position: relative;
    width: 100%;
}

.carousel-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.carousel-item.active {
    position: relative;
    opacity: 1;
    visibility: visible;
}

.carousel-item img {
    width: 100%;
    height: auto;
    max-height: 700px;
    object-fit: contain;
    display: block;
}

@media (min-width: 1025px) {
    .carousel-item img {
        object-fit: cover;
        height: 700px;
    }
}

.carousel-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.3) 60%, transparent 100%);
    z-index: 5;
}

.carousel-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--white);
    z-index: 10;
    max-width: 600px;
    text-align: center;
}

.carousel-content h2 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 20px;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.carousel-content p {
    font-size: 1.2rem;
    color: var(--matte-silver-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

.carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 16px;
    z-index: 10;
}

.carousel-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.carousel-indicator.active {
    background: var(--light-gold);
    width: 40px;
    border-radius: 6px;
    border-color: var(--light-gold);
}

.carousel-arrows {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: 30px;
    right: 30px;
    display: flex;
    justify-content: space-between;
    z-index: 10;
}

.carousel-arrow {
    width: 55px;
    height: 55px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.carousel-arrow:hover {
    background: var(--light-gold);
    border-color: var(--light-gold);
}

.section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 70px;
}

.section-title h2 {
    font-size: 2.8rem;
    margin-bottom: 16px;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 24px;
}

.section-title .line {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--light-gold), var(--light-gold-dark));
    margin: 0 auto;
    border-radius: 2px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.service-item {
    text-align: center;
    padding: 45px 35px;
    background: var(--white);
    border-radius: 20px;
    transition: all var(--transition-fast);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.service-item:hover {
    background: var(--white);
    box-shadow: var(--shadow-xl);
    transform: translateY(-8px);
    border-color: rgba(212, 175, 55, 0.2);
}

.service-item img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    margin-bottom: 30px;
    background: var(--white-gray);
    border-radius: 12px;
}

.service-item h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
    font-weight: 700;
}

.service-item p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 30px;
}

.advantage-item {
    text-align: center;
    padding: 35px 20px;
    background: var(--white);
    border-radius: 16px;
    transition: all var(--transition-fast);
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.advantage-item img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 20px;
}

.advantage-item h4 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 10px;
}

.advantage-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    line-height: 1.7;
}

.faults-section {
    background: var(--dark-gray-dark);
}

.faults-section .section-title h2,
.faults-section .section-title p {
    color: var(--white);
}

.faults-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.fault-item {
    text-align: center;
    padding: 35px 25px;
    background: var(--dark-gray);
    border-radius: 16px;
    transition: all var(--transition-fast);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.fault-item:hover {
    background: var(--dark-gray-light);
    transform: translateY(-5px);
    border-color: rgba(212, 175, 55, 0.3);
}

.fault-item img {
    width: 100%;
    height: 150px;
    object-fit: contain;
    margin-bottom: 20px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
}

.fault-item h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 10px;
}

.fault-item p {
    font-size: 0.9rem;
    color: var(--matte-silver);
    margin-bottom: 0;
    line-height: 1.7;
}

.process-section {
    background: var(--white-gray);
}

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

.process-step {
    flex: 0 0 calc(100% / 6);
    text-align: center;
    position: relative;
}

.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 35px;
    left: calc(50% + 40px);
    width: calc(100% - 80px);
    height: 3px;
    background: var(--matte-silver-light);
}

.process-step .step-number {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--light-gold), var(--light-gold-dark));
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: all var(--transition-fast);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.3);
}

.process-step:hover .step-number {
    transform: scale(1.15);
    box-shadow: 0 12px 40px rgba(212, 175, 55, 0.4);
}

.process-step h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 8px;
}

.process-step p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    line-height: 1.6;
}

.faq-section {
    padding: 100px 0;
}

.faq-container {
    max-width: 1000px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--matte-silver-light);
    padding: 25px 0;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark-gray);
    transition: color var(--transition-fast);
}

.faq-question:hover {
    color: var(--light-gold);
}

.faq-question span {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--light-gold);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: all var(--transition-fast);
    font-weight: 800;
}

.faq-question.active span {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-answer.active {
    max-height: 250px;
}

.faq-answer p {
    padding-top: 16px;
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.9;
}

footer {
    background: var(--dark-gray-dark);
    padding: 80px 0 40px;
    color: var(--matte-silver);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 50px;
    margin-bottom: 50px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.footer-logo img {
    height: 50px;
    width: auto;
}

.footer-logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 0.05em;
}

.footer-logo-text span {
    color: var(--light-gold);
}

.footer-section h4 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 25px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a {
    font-size: 1rem;
    color: var(--matte-silver);
    transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
    color: var(--light-gold);
}

.footer-contact p {
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--matte-silver);
    line-height: 1.8;
}

.footer-contact .phone {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--light-gold);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 0;
}

.floating-buttons {
    display: none;
    position: fixed;
    bottom: 40px;
    right: 30px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.floating-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--light-gold);
    color: var(--white);
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-fast);
}

.floating-btn:hover {
    transform: scale(1.15);
    box-shadow: var(--shadow-xl);
}

.floating-btn.call {
    background: #25D366;
}

.floating-btn.wechat {
    background: #07C160;
}

.floating-btn.book {
    background: var(--light-gold);
}

.floating-popup {
    position: fixed;
    right: 90px;
    bottom: 40px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    padding: 25px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: all var(--transition-fast);
    min-width: 220px;
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.floating-popup.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.floating-popup .popup-arrow {
    position: absolute;
    right: -10px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-left: 10px solid var(--white);
}

.floating-popup .popup-arrow::after {
    content: '';
    position: absolute;
    right: -12px;
    top: -10px;
    width: 0;
    height: 0;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-left: 10px solid rgba(0, 0, 0, 0.08);
}

.floating-popup h4 {
    color: var(--dark-gray);
    font-size: 1.1rem;
    margin-bottom: 12px;
    font-weight: 700;
}

.floating-popup .phone-link {
    display: block;
    color: var(--gold);
    font-size: 1.5rem;
    font-weight: 800;
    text-decoration: none;
    text-align: center;
    padding: 15px;
    background: var(--white-gray);
    border-radius: 12px;
    transition: background var(--transition-fast);
}

.floating-popup .phone-link:hover {
    background: var(--light-gold);
    color: var(--white);
}

.floating-popup .wechat-qrcode {
    width: 160px;
    height: 160px;
    margin: 0 auto;
    display: block;
    border-radius: 12px;
}

.floating-popup p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-align: center;
    margin-top: 12px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.product-card {
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-fast);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.product-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-8px);
    border-color: rgba(212, 175, 55, 0.2);
}

.product-card img {
    width: 100%;
    height: 280px;
    object-fit: contain;
    background: var(--white-gray);
}

.product-card-content {
    padding: 30px;
}

.product-card-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 12px;
}

.product-card-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

.product-card-content .fault-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.product-card-content .fault-tag {
    padding: 6px 16px;
    background: var(--white-gray);
    border-radius: 25px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.detail-header {
    padding: 120px 0 80px;
    background: var(--white-gray);
}

.detail-header h1 {
    text-align: center;
    font-size: 2.8rem;
}

.detail-header p {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.detail-image {
    text-align: center;
    padding: 50px 0;
}

.detail-image img {
    max-width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: contain;
}

.detail-section {
    padding: 50px 0;
}

.detail-section h2 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 3px solid var(--light-gold);
}

.detail-section h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
}

.detail-section ul {
    list-style: none;
    padding-left: 0;
}

.detail-section ul li {
    padding: 12px 0;
    border-bottom: 1px solid var(--matte-silver-light);
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.detail-section ul li:last-child {
    border-bottom: none;
}

.detail-section ul li::before {
    content: '✓';
    color: var(--light-gold);
    font-weight: 800;
    margin-right: 12px;
    font-size: 1.1rem;
}

.price-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 40px;
}

.price-table th,
.price-table td {
    padding: 20px;
    text-align: left;
    border-bottom: 1px solid var(--matte-silver-light);
}

.price-table th {
    background: var(--white-gray);
    font-weight: 700;
    color: var(--dark-gray);
    font-size: 1.05rem;
}

.price-table tr:hover {
    background: var(--white-gray);
}

.price-table .price {
    font-weight: 800;
    color: var(--light-gold);
    font-size: 1.2rem;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.case-card {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-fast);
}

.case-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-5px);
}

.case-card img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    background: var(--white-gray);
}

.case-card-content {
    padding: 20px;
}

.case-card-content h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 10px;
}

.case-card-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    line-height: 1.6;
}

.contact-section {
    padding: 100px 0;
}

.contact-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
}

.contact-info {
    padding: 50px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.contact-info h2 {
    font-size: 2.2rem;
    margin-bottom: 40px;
}

.contact-info .info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 35px;
}

.contact-info .info-item i {
    font-size: 1.8rem;
    color: var(--light-gold);
    margin-top: 5px;
}

.contact-info .info-item h4 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 8px;
}

.contact-info .info-item p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    line-height: 1.8;
}

.contact-form {
    padding: 50px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
}

.contact-form h2 {
    font-size: 2.2rem;
    margin-bottom: 40px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 10px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--matte-silver-light);
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--light-gold);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.quote-highlight {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.15), rgba(212, 175, 55, 0.05));
    border-left: 5px solid var(--light-gold);
    padding: 25px;
    margin-bottom: 40px;
    border-radius: 0 12px 12px 0;
}

.quote-highlight p {
    margin-bottom: 0;
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 500;
}

.quote-highlight .highlight-text {
    font-weight: 800;
    color: var(--light-gold);
}

@media (max-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .advantages-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .faults-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-container {
        grid-template-columns: 1fr;
    }

    .carousel-content h2 {
        font-size: 2.2rem;
    }

    .carousel-content p {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 90px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 30px;
        gap: 20px;
        display: none;
        box-shadow: var(--shadow-xl);
    }

    .nav.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .header-content {
        padding: 15px 20px;
    }

    .logo img {
        height: 40px;
    }

    .logo-text {
        font-size: 1.2rem;
    }

    .carousel-item img {
        max-height: 450px;
    }

    .carousel-content {
        left: 5%;
        right: 5%;
        text-align: center;
    }

    .carousel-content h2 {
        font-size: 1.8rem;
    }

    .carousel-content p {
        font-size: 0.95rem;
    }

    .section {
        padding: 60px 0;
    }

    .section-title h2 {
        font-size: 1.8rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .faults-grid {
        grid-template-columns: 1fr;
    }

    .process-steps {
        flex-direction: column;
        gap: 40px;
    }

    .process-step {
        flex: 0 0 100%;
    }

    .process-step:not(:last-child)::after {
        display: none;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .cases-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 35px;
    }

    h1 {
        font-size: 2.2rem;
    }

    h2 {
        font-size: 1.8rem;
    }

    .detail-header {
        padding: 90px 0 50px;
    }

    .detail-header h1 {
        font-size: 1.8rem;
    }

    .floating-buttons {
        display: flex;
    }

    .floating-btn {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .carousel-item img {
        max-height: 350px;
    }

    .carousel-content {
        padding: 15px;
    }

    .carousel-content h2 {
        font-size: 1.4rem;
    }

    .carousel-content p {
        font-size: 0.85rem;
    }

    .carousel-arrow {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .floating-buttons {
        right: 20px;
        bottom: 30px;
    }

    .floating-btn {
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }

    .service-item img {
        height: 150px;
    }

    .product-card img {
        height: 200px;
    }
}