/* 基础变量 - 白底主题 */
:root {
    --primary: #1e5aa8;
    --primary-dark: #164785;
    --accent: #00a8e8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-card: #ffffff;
    --bg-hover: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border: rgba(30, 90, 168, 0.15);
    --border-light: #e2e8f0;
    --gradient: linear-gradient(135deg, #1e5aa8 0%, #00a8e8 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 40px rgba(30, 90, 168, 0.15);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #ffffff;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 导航 */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo {
    width: 100px;
    height: 100px;
    flex-shrink: 0;
    object-fit: contain;
}

.nav-brand-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

.tagline {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--primary);
    letter-spacing: 1.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 2px;
    background: var(--gradient);
    transition: width 0.3s;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s;
}

/* Hero 区域 */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 100px 0 60px;
    overflow: hidden;
    background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(30, 90, 168, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 168, 232, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    position: relative;
}

.hero-image img {
    width: 100%;
    max-width: 600px;
    height: auto;
    object-fit: contain;
}

.hero-image .hero-logo {
    position: absolute;
    top: -110px;
    right: -30px;
    width: 120px;
    height: auto;
    -webkit-mask-image: none;
    mask-image: none;
    margin-right: 0;
    z-index: 10;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.hero-title .highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-bottom: 40px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.hero-cta {
    display: flex;
    gap: 16px;
}

.btn {
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    display: inline-block;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(30, 90, 168, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(30, 90, 168, 0.4);
}

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

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

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header .section-tag {
    display: inline-block;
    padding: 6px 20px;
    background: linear-gradient(135deg, rgba(30, 90, 168, 0.08) 0%, rgba(0, 168, 232, 0.08) 100%);
    border-radius: 100px;
    margin-bottom: 16px;
}

.section-tag {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
    display: block;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

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

/* Company Video Section */
.company-video {
    padding: 60px 0 40px;
    background: var(--bg-primary);
}

/* Core Advantages Section */
.advantages {
    padding: 100px 0 100px;
    background: var(--bg-primary);
    overflow: hidden;
}

.advantages-marquee {
    overflow: hidden;
    position: relative;
    mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
}

.advantages-track {
    display: flex;
    gap: 24px;
    width: fit-content;
    animation: marquee 25s linear infinite;
    will-change: transform;
}

.advantages-track:hover {
    animation-play-state: paused;
}

@keyframes marquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.advantage-item {
    flex-shrink: 0;
    width: 200px;
    padding: 50px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.advantage-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.advantage-icon-box {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.advantage-icon-box svg {
    width: 24px;
    height: 24px;
    color: white;
}

.advantage-item h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.advantage-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.video-wrapper {
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
    background: #000;
    line-height: 0;
    border-radius: 12px;
}

.video-wrapper video {
    width: 100%;
    height: auto;
    display: block;
    background: #000;
    max-height: 500px;
}

.video-download {
    margin-top: 20px;
    text-align: center;
}

.video-download .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 0.95rem;
}

/* Certifications Section */
.certifications {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.certifications-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.certifications-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    max-width: 100%;
}

.certifications-image img {
    width: 100%;
    max-width: 560px;
    height: auto;
    display: block;
    margin: 0 auto;
}

.certifications-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.cert-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.cert-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow);
    border-color: var(--primary);
}

.cert-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    border-radius: 10px;
    flex-shrink: 0;
}

.cert-icon svg {
    width: 20px;
    height: 20px;
    color: white;
}

.cert-text h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.cert-text p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .certifications-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* Products Section */
.products {
    padding: 100px 0 100px;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

/* Product Toolbar */
.product-toolbar {
    margin-bottom: 48px;
    display: flex;
    gap: 16px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    max-width: 500px;
    flex: 1;
    min-width: 280px;
}

.doc-download {
    flex-shrink: 0;
}

.btn-doc {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--bg-card);
    border: 2px solid var(--primary);
    color: var(--primary);
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s;
    white-space: nowrap;
}

.btn-doc:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 90, 168, 0.2);
}

.search-box input {
    width: 100%;
    padding: 14px 20px 14px 48px;
    border: 2px solid var(--border-light);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 90, 168, 0.1);
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--text-muted);
}

/* Product Categories */
.product-categories {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.category-card {
    background: var(--bg-card);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

.category-card:hover {
    box-shadow: var(--shadow);
}

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 32px;
    cursor: pointer;
    background: var(--bg-card);
    transition: background 0.3s;
}

.category-header:hover {
    background: var(--bg-hover);
}

.category-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.category-info p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.product-count {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(30, 90, 168, 0.1);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 100px;
}

.category-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-secondary);
    transition: all 0.3s;
}

.category-toggle svg {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
    transition: transform 0.3s;
}

.category-card.expanded .category-toggle svg {
    transform: rotate(180deg);
}

.category-products {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-out;
}

.category-card.expanded .category-products {
    max-height: 20000px;
}

.product-list {
    padding: 0 32px 32px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Product Item */
.product-item {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 16px 20px;
    border: 1px solid var(--border-light);
    transition: all 0.3s;
}

.product-item:hover {
    border-color: var(--primary);
    box-shadow: 0 2px 12px rgba(30, 90, 168, 0.1);
}

.product-item.hidden {
    display: none;
}

.product-main {
    display: flex;
    align-items: center;
    gap: 16px;
}

.product-thumb {
    width: 80px;
    height: 80px;
    border-radius: 10px;
    overflow: hidden;
    background: var(--bg-secondary);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-thumb img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: var(--bg-secondary);
    max-width: 100%;
}

.product-thumb.no-image {
    background: var(--bg-hover);
}

.product-thumb.no-image span {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.product-info {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.product-model {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.product-price-tag {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    white-space: nowrap;
}

.detail-btn {
    padding: 8px 20px;
    border: 1px solid var(--border-light);
    border-radius: 6px;
    background: var(--bg-primary);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
    margin-left: auto;
}

.detail-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(30, 90, 168, 0.05);
}

.product-detail {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    margin-top: 0;
}

.product-detail.show {
    max-height: 800px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
}

.detail-content {
    display: flex;
    gap: 24px;
}

.detail-image {
    width: 200px;
    height: 200px;
    border-radius: 12px;
    overflow: hidden;
    background: var(--bg-secondary);
    flex-shrink: 0;
}

.detail-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: var(--bg-secondary);
}

.product-detail ul {
    list-style: none;
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 8px;
}

.product-detail li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 6px 0;
    padding-left: 16px;
    position: relative;
}

.product-detail li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

/* About Section */
.about {
    padding: 100px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f0f7ff 100%);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: 10%;
    right: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(30, 90, 168, 0.04) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.about-content p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-stats {
    display: flex;
    gap: 48px;
    margin-top: 40px;
}

.about-stat {
    display: flex;
    flex-direction: column;
}

.about-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.about-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.about-image {
    background: var(--bg-card);
    border-radius: 24px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.global-business {
    position: relative;
    width: 100%;
    height: 100%;
}

.global-business img {
    width: 95%;
    height: 95%;
    object-fit: contain;
    margin: auto;
    display: block;
}

.global-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(30, 90, 168, 0.9), transparent);
    padding: 40px 24px 24px;
}

.global-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
}

.global-stat {
    text-align: center;
    color: white;
}

.global-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.global-label {
    display: block;
    font-size: 0.9rem;
    margin-top: 4px;
    opacity: 0.9;
}

/* Application Scenarios */
.scenarios {
    padding: 100px 0;
    background: linear-gradient(180deg, #f8fafc 0%, #f0f7ff 30%, #ffffff 70%, #f8f0ff 100%);
    position: relative;
    overflow: hidden;
}

.scenarios::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -15%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(30, 90, 168, 0.04) 0%, transparent 70%);
    border-radius: 50%;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    position: relative;
    z-index: 1;
}

.scenario-card {
    background: var(--bg-card);
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
}

.scenario-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 48px rgba(30, 90, 168, 0.12);
    border-color: transparent;
}

/* 场景卡片配色 - 城市通勤 */
.scenario-commute .scenario-visual {
    background: linear-gradient(135deg, #1e3a5f 0%, #2d5a87 50%, #3d7ab5 100%);
}

/* 场景卡片配色 - 长途摩旅 */
.scenario-travel .scenario-visual {
    background: linear-gradient(135deg, #c75c2e 0%, #e07b3c 50%, #f0a050 100%);
}

/* 场景卡片配色 - 外卖配送 */
.scenario-delivery .scenario-visual {
    background: linear-gradient(135deg, #2d6a4f 0%, #40916c 50%, #52b788 100%);
}

/* 场景卡片配色 - 运动骑行 */
.scenario-sport .scenario-visual {
    background: linear-gradient(135deg, #5c2d7a 0%, #7b3fa0 50%, #9d5bb5 100%);
}

.scenario-visual {
    width: 100%;
    height: 200px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scenario-visual::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50px;
    background: linear-gradient(to top, var(--bg-card), transparent);
    z-index: 3;
}

.scenario-product {
    position: absolute;
    right: 20px;
    bottom: 30px;
    width: 100px;
    height: 100px;
    z-index: 2;
    transition: transform 0.4s ease;
}

.scenario-card:hover .scenario-product {
    transform: scale(1.1) translateY(-5px);
}

.scenario-product img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 8px 16px rgba(0,0,0,0.2));
}

.scenario-scene {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    opacity: 0.9;
}

.scenario-scene svg {
    width: 100%;
    height: 100%;
}

.scenario-content {
    padding: 28px 32px 32px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.scenario-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.scenario-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
    flex: 1;
}

.scenario-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.scenario-tags span {
    padding: 6px 16px;
    background: linear-gradient(135deg, rgba(30, 90, 168, 0.08) 0%, rgba(0, 168, 232, 0.08) 100%);
    color: var(--primary);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid rgba(30, 90, 168, 0.12);
}

/* Certifications */
.certifications {
    padding: 120px 0 60px;
    background: var(--bg-primary);
}

.cert-grid {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.cert-item {
    padding: 16px 32px;
    background: var(--bg-card);
    border-radius: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    border: 2px solid var(--border-light);
    font-size: 0.9rem;
    transition: all 0.3s;
}

.cert-item:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Testimonials Section */
.testimonials {
    padding: 100px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f0f7ff 100%);
    position: relative;
}

.testimonials::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 168, 232, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    position: relative;
    z-index: 1;
}

.testimonial-card {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 40px 32px;
    border: 1px solid var(--border-light);
    transition: all 0.4s ease;
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    right: 28px;
    font-size: 4rem;
    color: var(--primary);
    opacity: 0.15;
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(30, 90, 168, 0.12);
}

.testimonial-stars {
    color: #f59e0b;
    font-size: 1.2rem;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 28px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1rem;
}

.author-title {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    position: relative;
    z-index: 1;
}

.testimonial-card {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 40px 32px;
    border: 1px solid var(--border-light);
    transition: all 0.4s ease;
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    right: 28px;
    font-size: 4rem;
    color: var(--primary);
    opacity: 0.15;
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(30, 90, 168, 0.12);
}

.testimonial-stars {
    color: #f59e0b;
    font-size: 1.2rem;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 28px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1rem;
}

.author-title {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Partners Section */
.partners {
    padding: 80px 0;
    background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
    overflow: hidden;
    position: relative;
}

.partners-marquee {
    overflow: hidden;
    position: relative;
    mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.partners-track {
    display: flex;
    gap: 48px;
    width: fit-content;
    animation: partnersMarquee 30s linear infinite;
}

.partners-track:hover {
    animation-play-state: paused;
}

@keyframes partnersMarquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.partner-item {
    flex-shrink: 0;
    padding: 16px 40px;
    background: var(--bg-secondary);
    border-radius: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    font-size: 1.1rem;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    white-space: nowrap;
}

.partner-item:hover {
    background: var(--gradient);
    color: white;
    border-color: transparent;
    transform: scale(1.05);
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 168, 232, 0.04) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

/* Mobile menu active state */
.nav-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    padding: 24px;
    gap: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    border-top: 1px solid var(--border-light);
    z-index: 999;
}

.nav-menu.active a {
    padding: 12px 16px;
    border-radius: 8px;
    transition: background 0.3s;
}

.nav-menu.active a:hover {
    background: rgba(30, 90, 168, 0.05);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.contact-info {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

.contact-card {
    padding: 24px;
    background: var(--bg-card);
    border-radius: 16px;
    transition: all 0.3s;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(30, 90, 168, 0.1);
    border-color: rgba(30, 90, 168, 0.2);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.contact-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.contact-detail {
    margin-top: 12px;
}

.contact-detail p {
    margin-bottom: 2px;
    line-height: 1.6;
}

.contact-detail p:last-child {
    margin-bottom: 0;
}

.contact-label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 8px;
}

.contact-note {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border-light);
    font-size: 0.9rem;
    color: var(--text-muted);
    font-style: italic;
}

.contact-form-wrapper {
    background: var(--bg-card);
    border-radius: 24px;
    padding: 48px;
    border: 1px solid var(--border-light);
    box-shadow: 0 20px 60px rgba(30, 90, 168, 0.08);
    transition: box-shadow 0.3s ease;
}

.contact-form-wrapper:hover {
    box-shadow: 0 24px 72px rgba(30, 90, 168, 0.12);
}

.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border-light);
    border-radius: 10px;
    font-size: 0.95rem;
    font-family: inherit;
    transition: all 0.3s;
    background: var(--bg-primary);
    color: var(--text-primary);
}

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

.btn-full {
    width: 100%;
    text-align: center;
}

/* Footer */
.footer {
    background: #ffffff;
    color: var(--text-primary);
    padding: 80px 0 40px;
    position: relative;
    overflow: hidden;
    border-top: 1px solid var(--border-light);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    display: block;
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer-links h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

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

.footer-bottom {
    border-top: 1px solid var(--border-light);
    padding-top: 40px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Section Spacer */
.section-spacer {
    height: 5px;
    background: linear-gradient(180deg, #ffffff 0%, #f0f7ff 100%);
}

/* Scroll Animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 64px;
    margin-bottom: 64px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-logo-img {
    height: 60px;
    width: auto;
    margin-bottom: 12px;
    object-fit: contain;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    display: block;
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer-links h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
}

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

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

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

.footer-bottom {
    border-top: 1px solid var(--border-light);
    padding-top: 40px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Responsive */
/* Mobile Optimizations - Phone First */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .hero .container {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero-wrapper {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero {
        padding: 100px 0 40px;
        min-height: auto;
    }

    .hero-image {
        order: -1;
        display: flex;
        justify-content: center;
        align-items: center;
        width: 100%;
    }

    .hero-image img {
        width: 100%;
        max-width: 320px;
        height: auto;
        margin: 0;
        -webkit-mask-image: none;
        mask-image: none;
    }

    .hero-image .hero-logo {
        display: none;
    }

    .hero-content {
        max-width: 100%;
        text-align: center;
    }

    .hero-title {
        font-size: 1.75rem;
        line-height: 1.3;
        margin-bottom: 16px;
    }

    .hero-subtitle {
        font-size: 0.95rem;
        line-height: 1.6;
        margin-bottom: 20px;
    }

    .hero-stats {
        gap: 16px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }

    /* Navigation */
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 16px;
        gap: 0;
        border-bottom: 1px solid var(--border-light);
        box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        padding: 12px 16px;
        border-bottom: 1px solid var(--border-light);
    }

    .nav-toggle {
        display: flex;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        padding: 8px;
    }

    .nav-toggle span {
        width: 24px;
        height: 2px;
        background: var(--text-primary);
        transition: all 0.3s;
    }

    .nav-brand {
        gap: 8px;
    }

    .nav-logo {
        width: 40px;
        height: 40px;
    }

    .logo {
        font-size: 0.9rem;
    }

    .tagline {
        font-size: 0.6rem;
    }

    /* Sections */
    .section-title {
        font-size: 1.5rem;
    }

    .section-desc {
        font-size: 0.9rem;
    }

    /* Products */
    .products {
        padding: 60px 0 60px;
    }

    .product-toolbar {
        margin-bottom: 24px;
    }

    .search-box input {
        padding: 10px 14px 10px 40px;
        font-size: 0.9rem;
    }

    .category-header {
        padding: 14px 16px;
    }

    .category-info h3 {
        font-size: 1rem;
    }

    .category-info p {
        font-size: 0.8rem;
    }

    .product-count {
        font-size: 0.7rem;
        padding: 3px 10px;
    }

    .product-list {
        padding: 0 16px 16px;
        gap: 8px;
    }

    .product-item {
        padding: 10px 12px;
    }

    .product-main {
        flex-wrap: wrap;
        gap: 12px;
    }

    .product-thumb {
        width: 56px;
        height: 56px;
    }

    .product-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        flex: 1;
        min-width: 0;
    }

    .product-model {
        font-size: 0.85rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 100%;
    }

    .product-price-tag {
        font-size: 0.9rem;
    }

    .detail-btn {
        padding: 5px 12px;
        font-size: 0.75rem;
        margin-left: auto;
    }

    .detail-content {
        flex-direction: column;
        gap: 16px;
    }

    .detail-image {
        width: 100%;
        height: auto;
        aspect-ratio: 1;
        max-height: 250px;
    }

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

    .product-detail ul {
        grid-template-columns: 1fr;
    }

    /* Contact */
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .contact-info {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .contact-card {
        padding: 16px;
    }

    .contact-icon {
        width: 40px;
        height: 40px;
    }

    .contact-icon svg {
        width: 20px;
        height: 20px;
    }

    .contact-card h3 {
        font-size: 1rem;
    }

    .contact-detail p {
        font-size: 0.85rem;
    }

    .contact-form-wrapper {
        padding: 24px;
    }

    .contact-form h3 {
        font-size: 1.25rem;
    }

    .form-group input,
    .form-group textarea {
        padding: 10px 14px;
        font-size: 0.9rem;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer {
        padding: 40px 0 20px;
    }

    /* Advantages */
    .advantages {
        padding: 32px 0 48px;
    }

    .advantage-item {
        width: 180px;
        padding: 20px 16px;
    }

    .advantage-icon-box {
        width: 44px;
        height: 44px;
    }

    .advantage-icon-box svg {
        width: 22px;
        height: 22px;
    }

    .advantage-item h3 {
        font-size: 0.9rem;
    }

    .advantage-item p {
        font-size: 0.8rem;
    }

    /* Scenarios */
    .scenarios-grid {
        grid-template-columns: 1fr;
    }

    .scenario-image {
        height: 160px;
    }

    .scenario-content {
        padding: 16px 20px 20px;
    }

    .scenario-content h3 {
        font-size: 1.1rem;
    }

    /* Testimonials */
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .testimonial-card {
        padding: 20px;
    }

    /* Partners */
    .partners-track {
        gap: 16px;
    }

    .partner-item {
        padding: 10px 20px;
        font-size: 0.85rem;
    }

    /* Hide decorative elements on mobile */
    .hero::before,
    .hero::after,
    .scenarios::before,
    .about::before,
    .testimonials::after,
    .contact::before {
        display: none;
    }

    /* About section */
    .about-stats {
        gap: 16px;
    }

    .about-number {
        font-size: 1.75rem;
    }

    .about-label {
        font-size: 0.8rem;
    }

    .global-overlay {
        padding: 16px;
    }

    .global-stat {
        padding: 8px 12px;
    }

    .global-number {
        font-size: 1.25rem;
    }

    /* Certifications */
    .certifications {
        padding: 60px 0;
    }

    .certifications-content {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .certifications-image {
        order: -1;
        width: 100%;
        max-width: 100%;
    }

    .certifications-image img {
        width: 100%;
        height: auto;
        max-height: 300px;
        object-fit: contain;
    }

    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .cert-item {
        padding: 16px 12px;
    }

    .cert-item svg {
        width: 32px;
        height: 32px;
    }

    .cert-item span {
        font-size: 0.75rem;
    }

    /* Product Toolbar Mobile */
    .product-toolbar {
        flex-direction: column;
        gap: 12px;
        padding: 0 16px;
        align-items: stretch;
    }

    .search-box {
        min-width: 100%;
        max-width: 100%;
    }

    .doc-download {
        width: 100%;
    }

    .btn-doc {
        width: 100%;
        justify-content: center;
        padding: 12px 20px;
        font-size: 0.9rem;
    }

    /* Video */
    .company-video {
        padding: 40px 0;
    }

    .video-wrapper {
        max-width: 100%;
        margin: 0 16px;
        border-radius: 8px;
    }

    .video-wrapper video {
        width: 100%;
        height: auto;
        max-height: 220px;
        object-fit: cover;
    }

    .video-download {
        margin-top: 16px;
        padding: 0 16px;
    }

    .video-download .btn {
        width: 100%;
        justify-content: center;
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

/* Hide product prices */
.product-price-tag {
    display: none !important;
}