/* 閲嶇疆鏍峰紡 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 鍩虹鏍峰紡 */
body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #ffffff;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 瀵艰埅鏍� */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(30, 30, 30, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
}

.logo-icon {
    position: relative;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #3498db, #9b59b6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s ease-in-out infinite;
}

.icon-secure {
    font-size: 1.5rem;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}

.logo-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #3498db, #9b59b6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin: 0;
}

.logo-text span {
    font-size: 0.8rem;
    color: #ccc;
    font-weight: 400;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: #ccc;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #3498db;
    background: rgba(52, 152, 219, 0.1);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.download-btn {
    background: linear-gradient(135deg, #3498db, #9b59b6);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.3);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-toggle span {
    width: 25px;
    height: 3px;
    background: #ccc;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* 棣栭〉妯箙 */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 100px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #1e1e1e 0%, #3a3a3a 50%, #2c2c2c 100%);
    z-index: -1;
}

.bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 20%, rgba(52, 152, 219, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(155, 89, 182, 0.1) 0%, transparent 50%);
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.float-item {
    position: absolute;
    font-size: 2rem;
    opacity: 0.3;
    animation: float 6s ease-in-out infinite;
}

.item-1 { top: 20%; left: 10%; animation-delay: 0s; }
.item-2 { top: 30%; right: 15%; animation-delay: 2s; }
.item-3 { bottom: 30%; left: 20%; animation-delay: 4s; }
.item-4 { bottom: 20%; right: 25%; animation-delay: 6s; }

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

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(52, 152, 219, 0.1);
    color: #3498db;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 2rem;
    border: 1px solid rgba(52, 152, 219, 0.2);
}

.badge-icon {
    font-size: 1.2rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
    color: #fff;
}

.title-highlight {
    background: linear-gradient(135deg, #3498db, #9b59b6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-description {
    font-size: 1.2rem;
    color: #ccc;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.btn {
    position: relative;
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, #3498db, #9b59b6);
    color: white;
    box-shadow: 0 10px 30px rgba(52, 152, 219, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(52, 152, 219, 0.4);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid #444;
}

.btn-outline:hover {
    border-color: #3498db;
    color: #3498db;
    transform: translateY(-3px);
}

.btn-icon {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.btn-ripple {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.btn-primary:hover .btn-ripple {
    left: 100%;
}

.hero-stats {
    display: flex;
    gap: 2rem;
}

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

.stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: #3498db;
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: #ccc;
}

/* 瑙嗚灞曠ず */
.visual-container {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-screen {
    background: #1a1a1a;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    width: 400px;
    height: 300px;
    position: relative;
    z-index: 2;
    border: 1px solid #333;
}

.screen-header {
    background: linear-gradient(135deg, #3498db, #9b59b6);
    color: white;
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.screen-dots {
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27ca3f; }

.screen-title {
    font-weight: 600;
}

.screen-content {
    padding: 2rem;
    height: calc(100% - 60px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: #1a1a1a;
}

.software-interface {
    color: #fff;
}

.interface-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #333;
}

.software-logo {
    font-size: 2rem;
    color: #3498db;
}

.software-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.version-info {
    font-size: 0.8rem;
    color: #27ae60;
}

.feature-toggles {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toggle-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
}

.toggle-item.active {
    background: rgba(52, 152, 219, 0.1);
    border: 1px solid rgba(52, 152, 219, 0.2);
}

.toggle-item .toggle-icon {
    margin-right: 0.5rem;
}

.toggle-label {
    flex: 1;
    font-size: 0.9rem;
    color: #3498db;
}

.toggle-switch {
    width: 40px;
    height: 20px;
    background: #333;
    border-radius: 10px;
    position: relative;
    transition: all 0.3s ease;
}

.toggle-switch.on {
    background: #3498db;
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    background: white;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.toggle-switch.on::after {
    transform: translateX(20px);
}

.floating-cards {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.feature-card {
    position: absolute;
    background: #1a1a1a;
    border-radius: 15px;
    padding: 1rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: float 6s ease-in-out infinite;
    border: 1px solid #333;
}

.card-1 {
    top: 10%;
    left: -10%;
    animation-delay: 0s;
}

.card-2 {
    top: 20%;
    right: -15%;
    animation-delay: 2s;
}

.card-3 {
    bottom: 30%;
    left: -20%;
    animation-delay: 4s;
}

.card-icon {
    font-size: 1.5rem;
}

.card-text {
    font-weight: 600;
    color: #fff;
    font-size: 0.9rem;
}

/* 閫氱敤鏍峰紡 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    background: rgba(52, 152, 219, 0.1);
    color: #3498db;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1rem;
    border: 1px solid rgba(52, 152, 219, 0.2);
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #333;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* 鍏充簬鎴戜滑 */
.about-section {
    padding: 6rem 0;
    background: white;
}

.about-content {
    margin-top: 2rem;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.text-block {
    margin-bottom: 2rem;
}

.text-block h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.text-block p {
    color: #666;
    line-height: 1.6;
}

.value-list {
    list-style: none;
    margin-top: 1rem;
}

.value-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: #666;
}

.value-icon {
    font-size: 1.2rem;
}

.team-showcase {
    background: linear-gradient(135deg, #f8f9ff, #fff5f8);
    border-radius: 20px;
    padding: 2rem;
}

.team-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.team-member {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
}

.member-avatar {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.member-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: #333;
}

.member-info span {
    font-size: 0.9rem;
    color: #666;
}

/* 浜у搧鏈嶅姟 */
.products-section {
    padding: 6rem 0;
    background: #f8f9fa;
}

.products-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
}

.product-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.product-card.featured {
    grid-row: 1 / 3;
    border: 2px solid #3498db;
}

.card-header {
    padding: 2rem 2rem 1rem;
    position: relative;
}

.product-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, #3498db, #9b59b6);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.card-content {
    padding: 0 2rem 2rem;
}

.card-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.card-content p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
    margin-bottom: 2rem;
}

.feature-list li {
    margin-bottom: 0.5rem;
    color: #666;
    font-size: 0.9rem;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
}

.price {
    display: flex;
    flex-direction: column;
}

.price-label {
    font-size: 0.8rem;
    color: #3498db;
    font-weight: 600;
}

.price-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
}

.product-btn {
    background: linear-gradient(135deg, #3498db, #9b59b6);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.product-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.3);
}

.product-btn.secondary {
    background: white;
    color: #3498db;
    border: 2px solid #3498db;
}

.product-btn.secondary:hover {
    background: #3498db;
    color: white;
}

/* 鏈€鏂拌祫璁� */
.news-section {
    padding: 6rem 0;
    background: white;
}

.news-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 2rem;
    margin-bottom: 3rem;
}

.news-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.news-card.featured {
    grid-row: 1 / 3;
}

.news-image {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, #f8f9ff, #fff5f8);
    display: flex;
    align-items: center;
    justify-content: center;
}

.news-card.featured .news-image {
    height: 250px;
}

.image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.image-icon {
    font-size: 3rem;
    opacity: 0.5;
}

.news-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: rgba(52, 152, 219, 0.9);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.news-content-area {
    padding: 1.5rem;
}

.news-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: #999;
}

.news-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
    line-height: 1.4;
}

.news-excerpt {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.news-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.news-stats {
    display: flex;
    gap: 1rem;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.8rem;
    color: #999;
}

.stat-icon {
    font-size: 1rem;
}

.read-more-btn {
    background: rgba(52, 152, 219, 0.1);
    color: #3498db;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.read-more-btn:hover {
    background: #3498db;
    color: white;
}

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

.load-more-btn {
    position: relative;
    background: white;
    border: 2px solid #3498db;
    color: #3498db;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
}

.load-more-btn:hover {
    background: #3498db;
    color: white;
    transform: translateY(-3px);
}

/* 鐢ㄦ埛鍙嶉 */
.feedback-section {
    padding: 6rem 0;
    background: #f8f9fa;
}

.feedback-stats {
    margin-bottom: 4rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: #3498db;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #666;
    font-weight: 500;
}

.testimonials {
    margin-bottom: 4rem;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.user-avatar {
    font-size: 2.5rem;
}

.user-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: #333;
}

.user-title {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.rating {
    display: flex;
    gap: 0.25rem;
}

.star {
    font-size: 1rem;
}

.testimonial-content p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.testimonial-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.testimonial-date {
    font-size: 0.9rem;
    color: #999;
}

.action-btn {
    background: rgba(52, 152, 219, 0.1);
    color: #3498db;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.action-btn:hover {
    background: #3498db;
    color: white;
}

.feedback-form {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.form-header {
    text-align: center;
    margin-bottom: 2rem;
}

.form-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #333;
}

.form-header p {
    color: #666;
}

.review-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
}

.form-group textarea {
    height: 120px;
    resize: vertical;
}

.rating-input {
    display: flex;
    gap: 0.5rem;
}

.rating-star {
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0.3;
}

.rating-star:hover,
.rating-star.active {
    opacity: 1;
    transform: scale(1.1);
}

.submit-btn {
    position: relative;
    background: linear-gradient(135deg, #3498db, #9b59b6);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    overflow: hidden;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(52, 152, 219, 0.4);
}

/* 鑱旂郴鎴戜滑 */
.contact-section {
    padding: 6rem 0;
    background: white;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.info-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.info-card {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.info-card:hover {
    background: white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.info-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.info-content h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #333;
}

.info-content p {
    font-size: 1.1rem;
    color: #3498db;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.info-content span {
    font-size: 0.9rem;
    color: #666;
}

.contact-form {
    background: #f8f9fa;
    border-radius: 20px;
    padding: 3rem;
}

.form-container h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: #333;
}

.message-form select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    background: white;
    transition: border-color 0.3s ease;
}

.message-form select:focus {
    outline: none;
    border-color: #3498db;
}

/* 椤佃剼 */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 4rem 0 2rem;
}

.footer-main {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand .logo-text h1 {
    color: white;
}

.brand-description {
    color: #ccc;
    margin: 1.5rem 0;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #ccc;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #3498db;
    color: white;
    transform: translateY(-2px);
}

.social-icon {
    font-size: 1.2rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.link-group h4 {
    color: #3498db;
    margin-bottom: 1rem;
    font-weight: 600;
}

.link-group ul {
    list-style: none;
}

.link-group a {
    color: #ccc;
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.link-group a:hover {
    color: #3498db;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-info p {
    color: #999;
    margin-bottom: 0.25rem;
}

.footer-badges {
    display: flex;
    gap: 1rem;
}

.badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    color: #ccc;
}

.badge-icon {
    font-size: 1rem;
}

/* 杩斿洖椤堕儴 */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #3498db, #9b59b6);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(52, 152, 219, 0.3);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(52, 152, 219, 0.4);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

/* 鍝嶅簲寮忚璁� */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .info-cards {
        grid-template-columns: 1fr;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .social-links {
        flex-wrap: wrap;
    }
    
    .footer-badges {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}