/* ========================================
   Style CSS - 主样式文件
   所有颜色使用 theme.css 中定义的变量
   ======================================== */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    overflow-x: hidden;
    background: var(--bg-base);
    /* 页面跳转动画 - 微弱淡入 */
    animation: pageEnter 0.2s ease-out;
}

/* 全局页面跳转动画 - 微弱透明度变化 */
@keyframes pageEnter {
    from { opacity: 0.85; }
    to { opacity: 1; }
}

body.page-exit {
    animation: pageExit 0.15s ease-in forwards;
}

@keyframes pageExit {
    from { opacity: 1; }
    to { opacity: 0.85; }
}

.container {
    max-width: 1920px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

p {
    margin-bottom: 1rem;
}

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

section {
    padding: var(--spacing-xl) 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: var(--btn-primary-text);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-hover));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(193, 139, 4, 0.3);
}

.btn-secondary {
    background: var(--btn-secondary-bg);
    color: var(--btn-secondary-text);
    border: 2px solid var(--btn-secondary-border);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--border-hover);
}

/* Header */
.header {
    position: relative;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

/* Header Top Bar */
.header-top {
    background: var(--bg-base);
    border-bottom: 1px solid var(--border-default);
}

/* Header Navigation Bar */
.header-nav {
    background: var(--nav-bg);
    transition: box-shadow var(--transition-base);
}

/* Fixed nav bar */
.header-nav-fixed {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1001;
    background: var(--nav-bg);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    transition: transform var(--transition-base), opacity var(--transition-base);
    pointer-events: none;
}

.header-nav-fixed.visible {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.header-top-content {
    display: grid;
    grid-template-columns: 2fr 3fr 3fr 2fr;
    align-items: center;
    height: 110px;
    gap: 1rem;
}

/* Logo */
.logo {
    justify-self: end;
}

.logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-img {
    height: 100px;
    width: auto;
}

.logo-text {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.contact-info-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.contact-info-item i {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
}

.contact-info-text {
    display: flex;
    flex-direction: column;
}

.contact-value {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.contact-label {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

/* Header Search */
.header-search {
    display: flex;
    align-items: center;
    justify-self: start;
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.header-search-input {
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    width: 180px;
    outline: none;
}

.header-search-input::placeholder {
    color: var(--text-disabled);
}

.header-search-btn {
    background: none;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    color: var(--text-secondary);
    transition: color var(--transition-base);
}

.header-search-btn:hover {
    color: var(--text-primary);
}

/* Header Navigation Bar */
.header-nav-content {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 45px;
}

/* Navigation */
.nav-list {
    display: flex;
    list-style: none;
    gap: 0;
    height: 45px;
    align-items: center;
    justify-content: center;
}

.nav-item {
    height: 45px;
    display: flex;
    align-items: center;
}

.nav-link {
    color: var(--nav-text);
    font-weight: 500;
    font-size: var(--font-size-lg);
    padding: 0 var(--spacing-lg);
    position: relative;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    height: 100%;
    letter-spacing: 0.5px;
}

.nav-link:hover,
.nav-link.active {
    background: var(--nav-hover-bg);
    color: var(--nav-text);
}

.nav-link.clicked {
    transform: translateY(-1px);
    color: var(--nav-text);
    background: var(--nav-active-bg);
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: fixed;
    top: 155px;
    left: 0;
    right: 0;
    width: 100%;
    max-width: 100vw;
    background: var(--bg-base);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    list-style: none;
    padding: var(--spacing-lg) var(--spacing-xl);
    z-index: 1100;
    border: 1px solid var(--border-default);
    border-top: none;
    display: flex;
    flex-direction: row;
    gap: 0;
    justify-content: flex-start;
    box-sizing: border-box;
}

.header-nav-fixed .dropdown-menu {
    top: 45px;
}

.dropdown:hover .dropdown-menu,
.dropdown-menu:hover {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Dropdown Group */
.dropdown-group {
    list-style: none;
    padding: 0 var(--spacing-lg);
    margin: 0;
    flex: 1;
    max-width: 25%;
    min-width: 240px;
    border-right: 1px solid var(--divider-light);
    box-sizing: border-box;
}

.dropdown-group:last-child {
    border-right: none;
}

.dropdown-group-title {
    display: block;
    padding: 0.5rem 0 0.75rem 0;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
    cursor: pointer;
    letter-spacing: 0.3px;
    margin-bottom: 0.5rem;
    text-decoration: none;
    transition: color 0.2s ease;
}

.dropdown-group-title:hover {
    color: var(--primary);
}

/* Dropdown Submenu */
.dropdown-submenu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dropdown-submenu li {
    margin: 0;
}

.submenu-item {
    display: block;
    padding: 0.6rem 0.75rem 0.6rem 2.25rem;
    color: var(--text-primary);
    font-weight: 400;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    cursor: pointer;
    text-decoration: none;
    position: relative;
    border-radius: var(--radius-sm);
    margin-left: 0;
}

.submenu-item:hover {
    background: var(--primary-light);
    color: var(--primary);
    padding-left: 2.5rem;
}

.submenu-item::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 5px;
    background: var(--text-disabled);
    border-radius: 50%;
    transition: all 0.2s ease;
}

.submenu-item:hover::before {
    background: var(--primary);
    width: 6px;
    height: 6px;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Language Switch */
.language-switch {
    position: relative;
    margin-left: var(--spacing-lg);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--nav-text);
    cursor: pointer;
    padding: 6px var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.lang-btn:hover {
    background: var(--primary);
}

.lang-btn.clicked {
    background: var(--primary-hover);
}

.lang-btn i {
    color: var(--nav-text);
}

.lang-menu {
    position: absolute;
    top: calc(100% + 5px);
    right: 0;
    background: var(--bg-base);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    list-style: none;
    padding: 0.5rem 0;
    min-width: 200px;
    max-height: 400px;
    overflow-y: auto;
    z-index: 1100;
    border: 1px solid var(--border-default);
}

.lang-menu.active,
.language-switch:hover .lang-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-menu li a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    transition: all var(--transition-base);
    font-size: var(--font-size-sm);
}

.lang-menu li a:hover {
    background: var(--primary-light);
    color: var(--primary);
}


/* Search */
.search-container {
    position: relative;
}

.search-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.search-btn:hover {
    background: var(--bg-hover);
}

.search-btn.clicked {
    background: var(--border-default);
    transform: scale(0.95);
}

.search-box {
    position: absolute;
    top: calc(100% + 5px);
    right: 0;
    background: var(--bg-base);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    padding: 1rem;
    min-width: 300px;
    display: flex;
    gap: 0.5rem;
    z-index: 1100;
    border: 1px solid var(--border-default);
}

.search-box.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.search-input {
    flex: 1;
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-md);
    padding: 0.5rem 1rem;
    font-size: var(--font-size-sm);
}

.search-submit {
    background: var(--primary);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-md);
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: all var(--transition-base);
}

.search-submit:hover {
    background: var(--primary-hover);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 1px;
    transition: all var(--transition-base);
}

.mobile-menu-toggle.clicked {
    transform: scale(0.9);
}

.mobile-menu-toggle:hover {
    background: var(--bg-hover);
    border-radius: var(--radius-sm);
}

/* Hero Carousel Section */
.hero-carousel {
    position: relative;
    overflow: hidden;
    padding: 0;
    box-sizing: border-box;
}

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

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease-in-out, transform 0.8s ease-in-out;
    display: flex;
    align-items: center;
    min-height: 480px;
    transform: translateX(30px);
}

.carousel-slide.active {
    position: relative;
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.slide-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: -2;
}

.slide-background img {
    height: 100%;
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    z-index: -1;
    pointer-events: none;
}

.slide-content {
    min-height: 480px;
    height: 100%;
}

.slide-text {
    width: 50%;
    color: var(--text-primary);
    padding: var(--spacing-lg);
    animation: slideInLeft 1s ease-out;
    border-radius: var(--radius-md);
    position: absolute;
    left: 2rem;
    top: 30%;
    z-index: 10;
}

.slide-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    line-height: 1.3;
    color: var(--text-primary);
}

.slide-title .title-line {
    display: block;
}

.slide-subtitle {
    font-size: 0.9rem;
    margin-bottom: 1rem;
    opacity: 0.8;
    line-height: 1.5;
    color: var(--text-primary);
}

/* Mobile Carousel Slide Responsive */
@media (max-width: 768px) {
    .carousel-slide {
        min-height: 400px;
    }
    
    .slide-content {
        min-height: 400px;
    }
    
    .slide-text {
        width: 55%;
        max-width: 55%;
        left: 0.75rem;
        top: 30%;
        padding: var(--spacing-md);
    }
    
    .slide-title {
        font-size: 1.25rem;
        margin-bottom: 0.5rem;
        line-height: 1.35;
    }
    
    .slide-subtitle {
        font-size: 0.75rem;
        margin-bottom: 0.75rem;
        line-height: 1.4;
        /* 限制行数，避免过长 */
        display: -webkit-box;
        -webkit-line-clamp: 4;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    
    .slide-actions {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .slide-actions .btn {
        font-size: 0.8rem;
        padding: 0.5rem 1rem;
        width: fit-content;
    }
    
    .carousel-indicators {
        bottom: 15px;
        gap: 1rem;
    }
    
    .indicator {
        width: 12px;
        height: 12px;
    }
}

@media (max-width: 480px) {
    .carousel-slide {
        min-height: 350px;
    }
    
    .slide-content {
        min-height: 350px;
    }
    
    .slide-text {
        width: 60%;
        max-width: 60%;
        left: 0.5rem;
        top: 25%;
        padding: 0.75rem;
    }
    
    .slide-title {
        font-size: 1.1rem;
        margin-bottom: 0.4rem;
    }
    
    .slide-subtitle {
        font-size: 0.7rem;
        -webkit-line-clamp: 3;
    }
    
    .slide-actions .btn {
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
    }
}

.slide-actions {
    display: flex;
    gap: 0.8rem;
    flex-direction: row;
}

.slide-actions .btn {
    font-size: 0.9rem;
    padding: 0.6rem 1.2rem;
}

/* Video Player Styles */
.video-player-container {
    width: 100%;
}

.video-thumbnail {
    position: relative;
    width: 100%;
    cursor: pointer;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.video-thumbnail:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.video-thumbnail img {
    width: 100%;
    height: auto;
    display: block;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.play-button:hover {
    background: var(--bg-base);
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: var(--shadow-xl);
}

.play-button i {
    margin-left: 4px;
}

/* Common Modal Styles */
.common-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
}

.common-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.common-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay);
    backdrop-filter: blur(4px);
}

.common-modal-content {
    position: relative;
    background: var(--bg-base);
    border-radius: var(--radius-lg);
    max-width: 90vw;
    max-height: 90vh;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.common-modal-close {
    position: absolute;
    top: -15px;
    right: -15px;
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-hover);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    z-index: 1;
}

.common-modal-close:hover {
    background: var(--bg-base);
    color: var(--text-primary);
    border-color: var(--primary);
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

/* Video Modal Specific Styles */
.video-modal .common-modal-content {
    padding: var(--spacing-xl);
}

.video-wrapper {
    position: relative;
    width: 960px;
    height: 540px;
    max-width: 90vw;
}

.video-wrapper iframe {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-md);
}

/* Lazy loading optimizations */
.lazy-load {
    opacity: 0;
    transition: opacity 0.4s ease-in-out;
}

.lazy-load.loaded {
    opacity: 1;
}

.lazy-iframe {
    display: none;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.lazy-iframe.loaded {
    display: block;
    opacity: 1;
}

.iframe-placeholder {
    cursor: pointer;
    transition: all var(--transition-base);
}

.iframe-placeholder:hover {
    background: var(--bg-hover) !important;
    transform: scale(1.02);
}

/* Image placeholder */
.image-placeholder {
    background: linear-gradient(90deg, var(--bg-hover) 25%, var(--border-default) 50%, var(--bg-hover) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-disabled);
    font-size: var(--font-size-sm);
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Carousel Indicators */
.carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1.5rem;
    z-index: 100;
}

.indicator {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid var(--text-primary);
    background: rgba(255, 255, 255, 0.9);
    cursor: pointer;
    transition: all 0.4s ease;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.indicator::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    border-radius: 50%;
    transform: scale(0);
    transition: transform 0.4s ease;
}

.indicator.active::before {
    transform: scale(1);
}

.indicator:hover {
    border-color: var(--text-primary);
    transform: scale(1.2);
    box-shadow: var(--shadow-lg);
}

.indicator.active {
    border-color: var(--text-primary);
    background: var(--bg-base);
    transform: scale(1.3);
    box-shadow: var(--shadow-lg);
}

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

.section-title {
    font-size: var(--font-size-3xl);
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 70%;
    margin: 0 auto;
}


/* Company Profile Section */
.company-profile {
    background: var(--bg-base);
    border-top: 1px solid var(--divider);
    border-bottom: 1px solid var(--divider);
}

.profile-content {
    display: flex;
    gap: 3rem;
    align-items: stretch;
    max-width: 1200px;
    margin: 0 auto;
    min-height: 320px;
}

.profile-left {
    flex: 0 0 40%;
    display: flex;
    flex-direction: column;
    position: relative;
    height: 320px;
}

.profile-right {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 0;
    height: 320px;
}

.video-player-container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.video-thumbnail {
    width: 100%;
    height: 100%;
    min-height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    background: var(--bg-secondary);
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    z-index: 10;
    border: 2px solid var(--text-primary);
}

.play-button:hover {
    transform: translate(-50%, -50%) scale(1.1);
    background: var(--bg-base);
    box-shadow: var(--shadow-lg);
}

.play-button i {
    color: var(--text-primary);
    font-size: var(--font-size-xl);
    margin-left: 3px;
}

.profile-text-content {
    width: 100%;
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 100%;
}

.profile-title {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-weight: 600;
    line-height: 1.3;
    position: relative;
    padding-bottom: 0.5rem;
}

.profile-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--primary);
}

.profile-description {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.profile-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--bg-base);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base);
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Product Categories */
.categories-grid {
    padding: 0 150px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

@media (max-width: 1400px) {
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1024px) {
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        padding: 0 50px;
    }
}

@media (max-width: 768px) {
    .categories-grid {
        grid-template-columns: 1fr;
        padding: 0 var(--spacing-lg);
    }
}

.category-card {
    background: var(--bg-base);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.category-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.card-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

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

.category-card:hover .card-image img {
    transform: scale(1.1);
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent, var(--overlay-light));
}

.card-content {
    padding: var(--spacing-xl);
}

.card-title {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.card-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    font-weight: 500;
    transition: all var(--transition-base);
}

.card-link:hover {
    color: var(--primary-hover);
    transform: translateX(5px);
}

/* Core Advantages */
.core-advantages {
    background: linear-gradient(135deg, var(--bg-darker), #374151);
    color: var(--text-inverse);
    position: relative;
    overflow: hidden;
}

.core-advantages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.core-advantages .section-header {
    position: relative;
    z-index: 2;
}

.core-advantages .section-title {
    font-size: 2.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
    margin-bottom: 1rem;
    position: relative;
}

.core-advantages .section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-hover));
    border-radius: 2px;
}

.core-advantages .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.2rem;
    text-align: center;
}

.advantages-grid {
    padding: 0 150px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.advantage-card {
    text-align: center;
    padding: 3rem var(--spacing-xl);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
}

.advantage-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    font-size: 2rem;
}

.advantage-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.advantage-description {
    text-align: left;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

/* Advantages Grid Responsive */
@media (max-width: 1200px) {
    .advantages-grid {
        padding: 0 80px;
    }
}

@media (max-width: 992px) {
    .advantages-grid {
        padding: 0 40px;
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .advantages-grid {
        padding: 0 20px;
    }
    
    .advantage-card {
        padding: 2rem var(--spacing-lg);
    }
    
    .advantage-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .advantage-title {
        font-size: 1.25rem;
    }
}

@media (max-width: 576px) {
    .advantages-grid {
        padding: 0 15px;
    }
    
    .advantage-card {
        padding: 1.5rem var(--spacing-md);
    }
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 1rem;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--text-inverse);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 1000;
}

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

.back-to-top:hover {
    background: var(--primary-hover);
    transform: translateY(-3px);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}


/* Featured Products */
.featured-products {
    background: var(--bg-secondary);
}

.product-filter {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--bg-base);
    border: 2px solid var(--border-default);
    color: var(--text-secondary);
    padding: 0.75rem var(--spacing-lg);
    border-radius: var(--radius-full);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
}

.products-grid {
    padding: 0 150px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    transition: all var(--transition-slow);
}

.product-card {
    background: var(--bg-base);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(30px) scale(0.95);
}

.product-card.show {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.product-card.hide {
    opacity: 0;
    transform: translateY(30px) scale(0.9);
}

.product-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.product-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.quick-view-btn {
    background: var(--bg-base);
    color: var(--primary);
    border: none;
    padding: 0.75rem var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.quick-view-btn:hover {
    background: var(--primary);
    color: var(--text-inverse);
}

.product-info {
    padding: var(--spacing-lg);
}

.product-name {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.product-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.product-link {
    color: var(--primary);
    font-weight: 500;
    transition: color var(--transition-base);
}

.product-link:hover {
    color: var(--primary-hover);
}

/* Products Grid Responsive */
@media (max-width: 1400px) {
    .products-grid {
        padding: 0 80px;
    }
}

@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        padding: 0 50px;
    }
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: 1fr;
        padding: 0 var(--spacing-lg);
        gap: var(--spacing-md);
    }
    
    .product-card {
        max-width: 100%;
    }
    
    .product-image {
        height: 180px;
    }
    
    .product-info {
        padding: var(--spacing-md);
    }
    
    .product-name {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .products-grid {
        padding: 0 var(--spacing-md);
    }
    
    .product-image {
        height: 160px;
    }
}

/* Case Studies */
.case-studies {
    background: var(--bg-base);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    padding: 0 1rem;
}

.case-card {
    background: var(--bg-base);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.case-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-overlay {
    position: absolute;
    top: 1rem;
    left: 1rem;
}

.case-category {
    background: rgba(193, 139, 4, 0.9);
    color: var(--text-inverse);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
}

.case-content {
    padding: var(--spacing-lg);
}

.case-title {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.case-client {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.case-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.case-link {
    color: var(--primary);
    font-weight: 500;
    transition: color var(--transition-base);
}

.case-link:hover {
    color: var(--primary-hover);
}

/* Testimonials */
.testimonials {
    background: linear-gradient(135deg, var(--bg-hover), var(--border-default));
    position: relative;
}

.testimonials-carousel {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}

.testimonials-gallery {
    display: flex;
    transition: transform var(--transition-slow);
    gap: var(--spacing-xl);
    padding: 0 1rem;
}

.testimonial-slide {
    flex: 0 0 calc(33.333% - 1.5rem);
    background: var(--bg-base);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    text-align: center;
}

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

.testimonial-slide.active {
    transform: scale(1.05);
    box-shadow: 0 20px 50px rgba(193, 139, 4, 0.2);
}

.client-logo {
    width: 80px;
    height: 50px;
    margin: 0 auto var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 0.5rem;
}

.client-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(100%);
    transition: filter var(--transition-base);
}

.testimonial-slide:hover .client-logo img {
    filter: grayscale(0%);
}

.testimonial-text {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: var(--spacing-lg);
}

.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info {
    text-align: left;
}

.author-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.author-position {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.testimonial-rating {
    color: var(--warning);
    font-size: 1.25rem;
}

.carousel-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.carousel-btn {
    width: 50px;
    height: 50px;
    background: var(--bg-base);
    border: none;
    border-radius: 50%;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.carousel-btn:hover {
    background: var(--primary);
    color: var(--text-inverse);
}

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

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-hover);
    cursor: pointer;
    transition: all var(--transition-base);
}

.dot.active,
.dot:hover {
    background: var(--primary);
}

/* News Section */
.news-section {
    background: var(--bg-base);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    padding: 0 1rem;
}

.news-card {
    background: var(--bg-base);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.news-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-date {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--bg-base);
    padding: 0.75rem;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-md);
}

.date-day {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.date-month {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.news-content {
    padding: var(--spacing-lg);
}

.news-category {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.news-title {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.news-excerpt {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.news-link {
    color: var(--primary);
    font-weight: 500;
    transition: color var(--transition-base);
}

.news-link:hover {
    color: var(--primary-hover);
}


/* Partners Section */
.partners-section {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--border-default) 100%);
    padding: 5rem 0;
}

.partners-carousel {
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

.partners-track {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2.5rem;
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 1rem;
}

@media (max-width: 992px) {
    .partners-track {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xl);
    }
}

@media (max-width: 576px) {
    .partners-track {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

.partner-logo {
    width: 100%;
    min-height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-base);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: var(--spacing-lg);
    border: 1px solid var(--divider-light);
}

.partner-logo:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: rgba(193, 139, 4, 0.15);
}

.partner-logo img {
    max-width: 180px;
    max-height: 100px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(0%);
    transition: all 0.4s ease;
}

.partner-logo:hover img {
    transform: scale(1.05);
}

.certifications {
    text-align: center;
}

.certifications-title {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
}

.certifications-grid {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.cert-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: var(--spacing-lg);
    background: var(--bg-base);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

.cert-item img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.cert-item span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* Contact Section */
.contact-section {
    background: var(--bg-base);
}

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

.contact-form {
    padding: 2.5rem;
    border-radius: var(--radius-xl);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: var(--error);
}

.submit-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: var(--text-inverse);
    border: none;
    padding: 1rem var(--spacing-xl);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.submit-btn:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-hover));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(193, 139, 4, 0.3);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: var(--text-inverse);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.social-links {
    margin-top: 1rem;
}

.social-links h4 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: 1rem;
}

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

.social-link {
    width: 45px;
    height: 45px;
    background: var(--bg-hover);
    color: var(--text-secondary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--primary);
    color: var(--text-inverse);
    transform: translateY(-3px);
}

/* Footer */
.footer {
    background: var(--footer-bg);
    color: var(--text-inverse);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.footer-logo img {
    height: 40px;
    width: auto;
}

.footer-logo span {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-description {
    color: var(--footer-text);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
}

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

.footer-social .social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-inverse);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.footer-social .social-link:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    color: var(--text-inverse);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--footer-text);
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-contact .contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--footer-text);
}

.footer-contact .contact-item i {
    color: var(--primary);
    width: 16px;
}

.footer-bottom {
    border-top: 1px solid var(--footer-border);
    padding-top: var(--spacing-xl);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.copyright {
    color: var(--text-disabled);
    font-size: 0.875rem;
}

.copyright a {
    color: var(--footer-text);
    transition: color var(--transition-base);
}

.copyright a:hover {
    color: var(--primary);
}

.icp {
    color: var(--text-disabled);
    font-size: 0.875rem;
}

/* Animations */
@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-100%); }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* ==================== Responsive Styles ==================== */

/* Header Responsive */
@media (max-width: 1200px) {
    .header-contact-info {
        gap: var(--spacing-lg);
    }
    
    .contact-value {
        font-size: var(--font-size-sm);
    }
    
    .header-search-input {
        width: 140px;
    }
}

@media (max-width: 1024px) {
    .video-wrapper {
        width: 80vw;
        height: calc(80vw * 9 / 16);
    }
    
    .dropdown-menu {
        padding: var(--spacing-lg) 1rem;
    }
    
    .dropdown-group {
        min-width: 200px;
        padding: 0 1rem;
    }
}

@media (max-width: 992px) {
    .header-top-content {
        height: 60px;
        grid-template-columns: auto 1fr auto;
        gap: 0.5rem;
        align-items: center;
    }
    
    .header-contact-info {
        display: none;
    }
    
    .contact-info-item {
        display: none;
    }
    
    .header-search {
        display: flex;
        flex: 1;
        max-width: none;
        margin: 0 var(--spacing-sm);
    }
    
    .header-search-input {
        width: 100%;
    }
    
    .logo {
        justify-self: start;
    }
    
    .logo-img {
        height: 40px;
    }
    
    .logo-text {
        font-size: var(--font-size-xl);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .header-nav {
        display: none;
    }
    
    .header-nav.mobile-open {
        display: block;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--nav-bg);
    }
    
    .header-nav-fixed {
        display: none;
    }
    
    .header-nav-content {
        flex-direction: column;
        height: auto;
        padding: 1rem 0;
    }
    
    .nav-list {
        flex-direction: column;
        height: auto;
        width: 100%;
    }
    
    .nav-item {
        height: auto;
        width: 100%;
    }
    
    .nav-link {
        padding: var(--spacing-md) var(--spacing-lg);
        width: 100%;
        justify-content: flex-start;
    }
    
    .language-switch {
        width: 100%;
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .lang-btn {
        width: 100%;
        justify-content: flex-start;
    }
    
    .dropdown-menu {
        top: auto;
        position: relative;
    }
}

@media (max-width: 768px) {
    .company-profile {
        padding: 60px 0;
    }
    
    .profile-content {
        flex-direction: column;
        gap: var(--spacing-xl);
        padding: 1rem 0;
        min-height: auto;
    }
    
    .profile-left,
    .profile-right {
        flex: none;
        width: 100%;
        height: auto;
    }
    
    .profile-right {
        padding: var(--spacing-xl) 0;
    }
    
    .video-player-container,
    .video-thumbnail {
        height: 250px;
    }
    
    .profile-text-content {
        padding: 1rem;
        text-align: center;
        min-height: auto;
    }
    
    .profile-title {
        font-size: 1.8rem;
        margin-bottom: var(--spacing-lg);
    }
    
    .profile-title::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .profile-description {
        font-size: var(--font-size-sm);
    }
    
    .dropdown-menu {
        flex-direction: column;
        padding: 1rem;
        max-height: 80vh;
        overflow-y: auto;
    }
    
    .dropdown-group {
        max-width: 100%;
        min-width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--divider-light);
        padding: 0 0 1rem 0;
        margin-bottom: 1rem;
    }
    
    .dropdown-group:last-child {
        border-bottom: none;
        margin-bottom: 0;
    }
    
    .modal-content {
        padding: 1rem;
        margin: 1rem;
    }
    
    .video-wrapper {
        width: 90vw;
        height: calc(90vw * 9 / 16);
    }
    
    .modal-close {
        top: -10px;
        right: -10px;
        width: 35px;
        height: 35px;
        font-size: 1rem;
        background: var(--bg-secondary);
        color: var(--text-secondary);
        border: 1px solid var(--border-hover);
    }
}

@media (max-width: 576px) {
    .header-top-content {
        height: 50px;
        padding: 0 10px;
        grid-template-columns: auto 1fr auto;
        gap: 0.25rem;
    }
    
    .header-search {
        margin: 0 var(--spacing-xs);
    }
    
    .header-search-input {
        padding: 6px 10px;
        font-size: var(--font-size-sm);
    }
    
    .header-search-btn {
        padding: 6px 10px;
    }
    
    .logo-img {
        height: 35px;
    }
    
    .logo-text {
        font-size: var(--font-size-lg);
    }
}

/* ==================== Contact Page Styles ==================== */
.contact-section {
    padding: 60px 0;
    background: var(--bg-secondary);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    max-width: 1200px;
    margin: 0 auto;
    background: var(--bg-base);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

/* Contact Form Container */
.contact-form-container {
    padding: var(--spacing-xl) 40px var(--spacing-xl) var(--spacing-xl);
    background: var(--bg-base);
}

/* Alert Messages */
.alert {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.alert i {
    font-size: var(--font-size-lg);
}

.alert-success {
    background: var(--success-light);
    color: #047857;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background: var(--error-light);
    color: var(--error);
    border: 1px solid #fecaca;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-base);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
    outline: none;
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-light);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-disabled);
}

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

.btn-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--primary);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-lg);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    margin-top: var(--spacing-lg);
    width: 100%;
}

.btn-submit:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(193, 139, 4, 0.3);
}

.form-disclaimer {
    margin-top: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

.link-primary {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.link-primary:hover {
    text-decoration: underline;
}

/* Contact Info Container */
.contact-info-container {
    padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-xl) 40px;
    border-left: 1px solid var(--border-default);
    background: var(--bg-base);
}

.info-section {
    margin-bottom: var(--spacing-xl);
}

.info-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.info-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Contact Details */
.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.contact-detail-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.detail-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.detail-icon i {
    font-size: var(--font-size-base);
    color: var(--text-inverse);
}

.phone-icon,
.email-icon,
.location-icon {
    background: var(--primary);
}

.detail-text {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    line-height: 1.6;
    padding-top: var(--spacing-sm);
}

a.detail-text:hover {
    color: var(--primary);
}

/* Follow Us Section */
.follow-section {
    margin-top: var(--spacing-xl);
}

.follow-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.social-icons {
    display: flex;
    gap: var(--spacing-md);
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-inverse);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
}

.social-icon:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.social-icon.youtube {
    background: #dc2626;
}

.social-icon.linkedin {
    background: #0077b5;
}

.social-icon.facebook {
    background: #1877f2;
}

.social-icon.instagram {
    background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
}

.social-icon.whatsapp {
    background: #25d366;
}

/* Contact Page Responsive */
@media (max-width: 992px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .contact-form-container {
        padding: var(--spacing-xl);
    }
    
    .contact-info-container {
        padding: var(--spacing-xl);
        border-left: none;
        border-top: 1px solid var(--border-default);
    }
}

@media (max-width: 576px) {
    .contact-section {
        padding: 40px 0;
    }
    
    .form-input,
    .form-textarea {
        padding: var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .btn-submit {
        width: 100%;
    }
    
    .social-icons {
        flex-wrap: wrap;
    }
}


/* ==================== Contact Float Buttons ==================== */
.contact-float {
    position: fixed;
    top: 65%;
    right: 1rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transform: translateY(-50%);
}

.contact-float-item {
    position: relative;
}

.contact-float-tooltip {
    position: absolute;
    right: 60px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-base);
    color: var(--text-primary);
    padding: 8px 14px;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    white-space: nowrap;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    cursor: text;
    user-select: text;
}

.contact-float-tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: var(--bg-base);
}

.contact-float-item:hover .contact-float-tooltip,
.contact-float-tooltip:hover {
    opacity: 1;
    visibility: visible;
    right: 58px;
}

.contact-float-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    border-radius: 50%;
    color: var(--text-inverse);
    font-size: 22px;
    box-shadow: 0 4px 20px var(--primary-light);
    transition: all var(--transition-base);
    position: relative;
    border: none;
    cursor: pointer;
    text-decoration: none;
}

.contact-float-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px var(--primary-light);
    filter: brightness(1.1);
    color: var(--text-inverse);
}

.contact-float-btn:hover i {
    animation: contact-shake 0.5s ease-in-out;
}

/* Message Badge */
.contact-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 22px;
    height: 22px;
    background: var(--error);
    border-radius: 50%;
    color: var(--text-inverse);
    font-size: var(--font-size-xs);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--bg-base);
    animation: badge-bounce 1.5s infinite;
}

@keyframes badge-bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* First button (WhatsApp) has pulse animation */
.contact-float-btn:first-child {
    animation: contact-pulse 2s infinite;
}

/* Pulse Animation */
@keyframes contact-pulse {
    0% {
        box-shadow: 0 0 0 0 var(--primary-light);
    }
    70% {
        box-shadow: 0 0 0 20px transparent;
    }
    100% {
        box-shadow: 0 0 0 0 transparent;
    }
}

/* Shake Animation */
@keyframes contact-shake {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-15deg); }
    50% { transform: rotate(15deg); }
    75% { transform: rotate(-10deg); }
}

/* Contact Float Responsive */
@media (max-width: 768px) {
    .contact-float {
        top: 40%;
        right: 1rem;
        gap: 10px;
    }
    
    .contact-float-btn {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}


/* ==================== Footer Responsive ==================== */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    
    .footer-section:first-child {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .footer {
        padding: 3rem 0 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-bottom: 2rem;
    }
    
    .footer-section:first-child {
        grid-column: auto;
    }
    
    .footer-logo {
        justify-content: center;
    }
    
    .footer-description {
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .footer-title {
        text-align: center;
    }
    
    .footer-links {
        align-items: center;
    }
    
    .footer-contact {
        align-items: center;
    }
    
    .footer-contact .contact-item {
        justify-content: center;
        text-align: center;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
    
    .copyright {
        text-align: center;
    }
}

@media (max-width: 576px) {
    .footer {
        padding: 2rem 0 1rem;
    }
    
    .footer-content {
        gap: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .footer-logo img {
        height: 35px;
    }
    
    .footer-logo span {
        font-size: 1.25rem;
    }
    
    .footer-description {
        font-size: var(--font-size-sm);
    }
    
    .footer-social .social-link {
        width: 36px;
        height: 36px;
    }
    
    .footer-title {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-md);
    }
    
    .footer-links {
        gap: 0.5rem;
    }
    
    .footer-links a {
        font-size: var(--font-size-sm);
    }
    
    .footer-contact .contact-item {
        font-size: var(--font-size-sm);
        flex-direction: row;
        flex-wrap: nowrap;
        gap: 0.5rem;
    }
    
    .footer-contact .contact-item i {
        flex-shrink: 0;
    }
}



/* ========================================
   Mobile Navigation Menu
   ======================================== */

/* Mobile Menu Toggle Active State */
.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation Container */
.mobile-nav-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 99999;
    visibility: hidden;
    opacity: 0;
    transition: visibility 0.3s, opacity 0.3s;
}

.mobile-nav-menu.active {
    visibility: visible;
    opacity: 1;
}

/* Mobile Navigation Overlay - 和公共 modal 一样 */
.mobile-nav-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay);
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-nav-menu.active .mobile-nav-overlay {
    opacity: 1;
}

/* Mobile Navigation Content - 和公共 modal 背景一样 */
.mobile-nav-content {
    position: absolute;
    top: 0;
    right: 0;
    width: 85%;
    max-width: 320px;
    height: 100%;
    background: var(--bg-base);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    padding: 0;
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
}

.mobile-nav-menu.active .mobile-nav-content {
    transform: translateX(0);
}

/* Mobile Nav Header with Close Button */
.mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-secondary);
    position: sticky;
    top: 0;
    z-index: 10;
}

.mobile-nav-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.mobile-nav-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-base);
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.15s ease;
    -webkit-tap-highlight-color: transparent;
}

.mobile-nav-close:active {
    background: var(--bg-hover);
    color: var(--text-primary);
    transform: scale(0.95);
}

.mobile-nav-close i {
    font-size: 14px;
}

/* Mobile Language Switch - 优化版 */
.mobile-lang-switch {
    padding: 12px 16px;
    position: relative;
    z-index: 10;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-base);
}

.mobile-lang-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-base);
    border: 1px solid var(--border-default);
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    padding: 8px 14px;
    border-radius: var(--radius-md);
    -webkit-tap-highlight-color: transparent;
    transition: all 0.2s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.mobile-lang-btn:active {
    background: var(--bg-hover);
    transform: scale(0.98);
}

.mobile-lang-btn i.fa-globe {
    font-size: 14px;
    color: var(--primary);
}

.mobile-lang-text {
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mobile-lang-arrow {
    font-size: 9px;
    color: var(--text-secondary);
    transition: transform 0.25s ease;
    margin-left: 2px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.mobile-lang-arrow::before {
    display: block;
    line-height: 1;
}

.mobile-lang-btn.active {
    border-color: var(--primary);
    background: var(--primary-light);
}

.mobile-lang-btn.active .mobile-lang-arrow {
    transform: rotate(180deg);
}

/* Mobile Language Menu - 优化版 */
.mobile-lang-menu {
    list-style: none;
    margin: 8px 0 0 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.2s ease;
    background: var(--bg-base);
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    opacity: 0;
    box-shadow: none;
}

.mobile-lang-menu.active {
    max-height: 280px;
    overflow-y: auto;
    opacity: 1;
    border-color: var(--border-default);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.mobile-lang-menu li {
    border-bottom: 1px solid var(--border-light);
}

.mobile-lang-menu li:last-child {
    border-bottom: none;
}

.mobile-lang-menu li a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 400;
    transition: all 0.15s ease;
    -webkit-tap-highlight-color: transparent;
    position: relative;
}

.mobile-lang-menu li a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary);
    transform: scaleY(0);
    transition: transform 0.15s ease;
}

.mobile-lang-menu li a:hover,
.mobile-lang-menu li a:active {
    color: var(--primary);
    background: var(--primary-light);
}

.mobile-lang-menu li a:active::before {
    transform: scaleY(1);
}

/* Mobile Navigation */
.mobile-nav {
    padding: 12px 0;
}

.mobile-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-nav-item {
    border-bottom: 1px solid var(--border-light);
}

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

.mobile-nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.2s ease;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    background: transparent;
    gap: 8px;
}

.mobile-nav-link > span {
    flex: 1;
    line-height: 24px;
}

.mobile-nav-link:hover,
.mobile-nav-link:active {
    color: var(--primary);
    background: var(--primary-light);
}

.mobile-nav-link.active {
    color: var(--primary);
    border-left: 3px solid var(--primary);
    padding-left: 17px;
}

/* Mobile Submenu Toggle - 使用箭头 */
.mobile-submenu-toggle {
    font-size: 9px;
    color: var(--text-secondary);
    transition: transform 0.25s ease;
    margin-left: 2px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.mobile-submenu-toggle::before {
    display: block;
    line-height: 1;
}

.mobile-nav-item.has-submenu.open .mobile-submenu-toggle {
    transform: rotate(180deg);
    color: var(--primary);
}

/* Mobile Submenu - 二级菜单 */
.mobile-submenu {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    background: transparent;
    /* 移除左边框，避免与一级菜单重复 */
    border-left: none;
    margin-left: 0;
}

.mobile-nav-item.has-submenu.open .mobile-submenu {
    max-height: 2000px;
    padding: 4px 0;
}

.mobile-submenu-item {
    border-bottom: none;
    position: relative;
}

.mobile-submenu-link-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px 12px 28px;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    transition: background 0.15s ease;
    border-radius: 0;
    margin-right: 0;
}

.mobile-submenu-link-wrapper:active {
    background: var(--primary-light);
}

.mobile-submenu-link-wrapper a,
.mobile-submenu-link-wrapper .mobile-submenu-text {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s ease;
    flex: 1;
}

.mobile-submenu-link-wrapper a:hover,
.mobile-submenu-link-wrapper a:active {
    color: var(--primary);
}

.mobile-child-toggle {
    font-size: 9px;
    color: var(--text-secondary);
    transition: transform 0.25s ease;
    margin-left: 2px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.mobile-child-toggle::before {
    display: block;
    line-height: 1;
}

.mobile-submenu-item.has-children.open .mobile-child-toggle {
    transform: rotate(180deg);
    color: var(--primary);
}

/* Mobile Child Menu - 三级菜单 */
.mobile-child-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    /* 简化背景，移除边框和阴影 */
    background: transparent;
    margin-left: 0;
    border-left: none;
}

.mobile-submenu-item.has-children.open .mobile-child-menu {
    max-height: 1000px;
    padding: 2px 0;
}

.mobile-child-menu li {
    position: relative;
}

.mobile-child-menu li a {
    display: block;
    padding: 10px 16px 10px 44px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 400;
    transition: all 0.15s ease;
    -webkit-tap-highlight-color: transparent;
    position: relative;
}

/* 简化圆点样式 */
.mobile-child-menu li a::before {
    content: '•';
    position: absolute;
    left: 32px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 8px;
    color: var(--text-disabled);
    transition: color 0.15s ease;
}

.mobile-child-menu li a:hover,
.mobile-child-menu li a:active {
    color: var(--primary);
    background: transparent;
}

.mobile-child-menu li a:active::before {
    color: var(--primary);
}

.mobile-submenu li a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}

.mobile-submenu li a:hover,
.mobile-submenu li a:active {
    color: var(--primary);
}

/* Responsive - Show mobile menu on smaller screens */
@media (max-width: 992px) {
    .mobile-nav-menu {
        display: block;
    }
}

/* Prevent body scroll when mobile menu is open */
body.mobile-menu-open {
    overflow: hidden;
}

/* Hide contact float when mobile menu is open */
body.mobile-menu-open .contact-float {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}


/* ========================================
   Mobile Search - Enhanced Experience
   ======================================== */

/* Mobile Search Toggle - Search Area Style */
.mobile-search-toggle {
    display: none;
    align-items: center;
    flex: 1;
    min-width: 120px;
    max-width: 200px;
    height: 36px;
    background: var(--bg-secondary);
    border: 1px solid var(--primary);
    border-radius: var(--radius-md);
    padding: 0 12px;
    margin: 0 auto;
    cursor: pointer;
    transition: all var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

.mobile-search-toggle:active {
    background: var(--primary-light);
    transform: scale(0.98);
}

.mobile-search-toggle-icon {
    color: var(--text-secondary);
    font-size: 13px;
    margin-right: 8px;
    flex-shrink: 0;
}

.mobile-search-toggle-text {
    flex: 1;
    font-size: 13px;
    color: var(--text-disabled);
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Desktop Search - Hide on mobile */
.desktop-search {
    display: flex;
}

@media (max-width: 992px) {
    .desktop-search {
        display: none;
    }
    
    .mobile-search-toggle {
        display: flex;
    }
}

@media (max-width: 576px) {
    .mobile-search-toggle {
        min-width: 160px;
        max-width: 160px;
        height: 34px;
        padding: 0 10px;
    }
    
    .mobile-search-toggle-icon {
        font-size: 12px;
        margin-right: 6px;
    }
    
    .mobile-search-toggle-text {
        font-size: 12px;
    }
}

/* Header top content adjustments for mobile */
@media (max-width: 992px) {
    .header-top-content {
        grid-template-columns: auto 1fr auto;
        justify-items: center;
    }
    
    .logo {
        justify-self: start;
    }
    
    .mobile-menu-toggle {
        justify-self: end;
    }
}

@media (max-width: 576px) {
    .header-top-content {
        gap: 8px;
    }
}