/* ========================================
   友大软件 | YouDa Tech - 主样式表
   设计风格：深色科技感 (inspired by SenseTime)
   ======================================== */

/* === CSS Variables === */
:root {
    --bg-primary: #080c1a;
    --bg-secondary: #0d1230;
    --bg-card: rgba(15, 20, 50, 0.8);
    --bg-card-hover: rgba(25, 32, 70, 0.9);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-tertiary: rgba(255, 255, 255, 0.45);
    --accent-blue: #4facfe;
    --accent-purple: #6c5ce7;
    --accent-cyan: #00d2ff;
    --gradient-primary: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-purple: linear-gradient(135deg, #6c5ce7 0%, #a18cd1 100%);
    --gradient-dark: linear-gradient(180deg, #080c1a 0%, #0d1230 50%, #121840 100%);
    --gradient-card: linear-gradient(135deg, rgba(79, 172, 254, 0.1) 0%, rgba(108, 92, 231, 0.05) 100%);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(79, 172, 254, 0.3);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 40px rgba(79, 172, 254, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1280px;
    --header-height: 72px;
}

/* === Reset & Base === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

ul { list-style: none; }

img { max-width: 100%; display: block; }

/* === Utilities === */
.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
    padding: 6px 16px;
    border-radius: 20px;
    background: rgba(79, 172, 254, 0.1);
    border: 1px solid rgba(79, 172, 254, 0.2);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.section-footer {
    text-align: center;
    margin-top: 48px;
}

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

/* === Buttons === */
.btn-primary, .btn-outline, .btn-outline-white {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 16px rgba(79, 172, 254, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(79, 172, 254, 0.45);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.25);
}

.btn-outline:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(79, 172, 254, 0.2);
}

.btn-outline-white {
    background: rgba(255,255,255,0.1);
    color: #fff;
    border: 1.5px solid rgba(255,255,255,0.3);
    backdrop-filter: blur(10px);
}

.btn-outline-white:hover {
    background: rgba(255,255,255,0.2);
    border-color: #fff;
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
    border-radius: var(--radius-lg);
}

/* === Header / Navigation === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    transition: all var(--transition);
}

.header.scrolled {
    background: rgba(8, 12, 26, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 0;
    text-decoration: none;
    z-index: 1001;
}

.logo-img {
    height: 40px;
    width: auto;
    display: block;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(6px);
    padding: 2px 10px;
    border-radius: 10px;
    box-sizing: content-box;
}

.logo-icon {
    width: auto;
    height: 40px;
    background: transparent;
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: none;
    overflow: visible;
}

.logo-icon-img {
    background: transparent;
    box-shadow: none;
    width: auto;
    height: 40px;
}

.logo-icon-img img {
    width: auto;
    height: 40px;
    object-fit: contain;
    border-radius: 0;
    display: block;
}

.logo-text {
    display: none;
}

.logo-cn {
    display: none;
}

.logo-en {
    display: none;
}

/* Main Navigation */
.main-nav .nav-list {
    display: flex;
    gap: 4px;
}

.nav-item a {
    display: flex;
    align-items: center;
    padding: 8px 18px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition);
    position: relative;
}

.nav-item a:hover,
.nav-item.active a {
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
}

.nav-item.active a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--accent-blue);
    border-radius: 1px;
}

/* Mega Menu - 悬浮样式，不影响页面内容流 */
.has-mega { position: relative; }

.has-mega > a {
    position: relative;
    z-index: 1000;
}

/* 使用伪元素桥接导航项与mega-menu之间的间隙，防止hover中断 */
.has-mega::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 720px;
    height: 16px;
    z-index: 998;
    pointer-events: none;
}

.has-mega:hover .mega-menu,
.has-mega:hover::after {
    pointer-events: auto;
}

.has-mega:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

.mega-menu {
    position: fixed;
    top: var(--header-height);
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: rgba(13, 18, 48, 0.98);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    min-width: 720px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    z-index: 999;
}

/* 确保mega-menu内部链接可点击 */
.mega-menu a {
    position: relative;
    z-index: 1000;
    pointer-events: auto;
}

.mega-inner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.mega-col h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.mega-col ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mega-col li a {
    display: block;
    padding: 6px 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: all var(--transition);
    border-radius: 4px;
}

.mega-col li a:hover {
    color: #fff;
    padding-left: 8px;
}

/* Nav Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    z-index: 1001;
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 2px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.lang-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px 6px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--transition);
    border-radius: 4px;
}

.lang-btn:hover,
.lang-btn.active {
    color: #fff;
    background: rgba(255,255,255,0.1);
}

.lang-divider {
    color: var(--text-tertiary);
}

.btn-nav-cta {
    padding: 8px 20px !important;
    font-size: 0.85rem !important;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: all var(--transition);
}

/* === Hero Section === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: var(--gradient-dark);
}

.hero-grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(79, 172, 254, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(79, 172, 254, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-particles {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(79, 172, 254, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(108, 92, 231, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 80%, rgba(0, 210, 255, 0.08) 0%, transparent 50%);
    animation: pulseGlow 8s ease-in-out infinite alternate;
}

@keyframes pulseGlow {
    0% { opacity: 0.7; }
    50% { opacity: 1; }
    100% { opacity: 0.7; }
}

/* === Hero Carousel (SenseTime Style) === */
.hero-carousel {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: var(--max-width);
    padding: 20px 40px 80px;
    margin: 0 auto;
    overflow: hidden;
}

.carousel-track {
    display: flex;
    align-items: center;
    gap: 0;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.carousel-slide {
    flex-shrink: 0;
    display: flex;
    justify-content: center;
    padding: 0;
}

.carousel-card {
    position: relative;
    width: 100%;
    max-width: 100%;
    min-height: 420px;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
    transition: transform 0.5s ease, box-shadow 0.5s ease;
}

.carousel-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 30px 80px rgba(79, 172, 254, 0.2);
}

.carousel-card-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.55;
    transition: opacity 0.8s ease, transform 4s ease;
    transform: scale(1);
}

.carousel-card:hover .carousel-card-bg {
    opacity: 0.65;
    transform: scale(1.05);
}

.carousel-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(8,12,26,0.7) 0%, 
        rgba(13,18,48,0.35) 40%, 
        rgba(8,12,26,0.55) 100%);
}

.carousel-card-content {
    position: relative;
    z-index: 1;
    padding: 60px 56px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100%;
    min-height: 420px;
}

.carousel-card-label {
    display: inline-block;
    padding: 6px 20px;
    background: rgba(79,172,254,0.1);
    border: 1px solid rgba(79,172,254,0.25);
    border-radius: 20px;
    font-size: 0.85rem;
    color: #4facfe;
    font-weight: 600;
    letter-spacing: 1.5px;
    margin-bottom: 28px;
    width: fit-content;
    backdrop-filter: blur(10px);
}

.carousel-card-content h2 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 20px;
    color: #fff;
}

.carousel-card-content p {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.7);
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 500px;
}

.carousel-card-content .btn-primary {
    width: fit-content;
}

/* Carousel Indicators */
.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 36px;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.carousel-dot.active {
    background: #4facfe;
    box-shadow: 0 0 12px rgba(79,172,254,0.5);
    transform: scale(1.3);
}

.carousel-dot:hover {
    background: rgba(255,255,255,0.5);
}

/* Carousel Arrows */
.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 2;
    backdrop-filter: blur(10px);
}

.carousel-arrow:hover {
    background: rgba(79,172,254,0.2);
    border-color: rgba(79,172,254,0.4);
}

.carousel-prev { left: 10px; }
.carousel-next { right: 10px; }

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-tertiary);
    font-size: 0.75rem;
    animation: fadeInUp 1s ease-out 0.6s both;
    z-index: 1;
}

.scroll-mouse {
    width: 24px;
    height: 36px;
    border: 2px solid var(--text-tertiary);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
}

.scroll-wheel {
    width: 3px;
    height: 8px;
    background: var(--text-tertiary);
    border-radius: 2px;
    animation: scrollWheel 1.5s ease-in-out infinite;
}

@keyframes scrollWheel {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(12px); opacity: 0; }
}

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

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

/* === Hero Banner Section (SenseFoundry Style) === */
.hero-banner-section {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 120px 40px;
}

.hero-banner-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-banner-bg-img {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.4;
    filter: saturate(0.8);
}

.hero-banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, 
        rgba(8, 12, 26, 0.85) 0%, 
        rgba(10, 15, 40, 0.6) 20%, 
        rgba(13, 18, 48, 0.5) 50%, 
        rgba(10, 15, 40, 0.6) 80%, 
        rgba(8, 12, 26, 0.85) 100%);
}

.hero-banner-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(79, 172, 254, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(79, 172, 254, 0.04) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
}

.hero-banner-particles {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 25% 30%, rgba(79, 172, 254, 0.18) 0%, transparent 55%),
        radial-gradient(ellipse at 75% 60%, rgba(108, 92, 231, 0.13) 0%, transparent 55%),
        radial-gradient(ellipse at 50% 80%, rgba(0, 210, 255, 0.1) 0%, transparent 55%),
        radial-gradient(ellipse at 15% 70%, rgba(79, 172, 254, 0.08) 0%, transparent 40%);
    animation: bannerPulse 10s ease-in-out infinite alternate;
}

@keyframes bannerPulse {
    0% { opacity: 0.7; }
    100% { opacity: 1; }
}

.hero-banner-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    animation: glowFloat 15s ease-in-out infinite;
}

.glow-1 {
    width: 600px;
    height: 600px;
    background: rgba(79, 172, 254, 0.08);
    top: -200px;
    left: -100px;
    animation-delay: 0s;
}

.glow-2 {
    width: 500px;
    height: 500px;
    background: rgba(108, 92, 231, 0.07);
    bottom: -150px;
    right: -100px;
    animation-delay: -5s;
}

.glow-3 {
    width: 400px;
    height: 400px;
    background: rgba(0, 210, 255, 0.06);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes glowFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(40px, -30px) scale(1.1); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(-30px, -20px) scale(1.05); }
}

.hero-banner-content {
    position: relative;
    z-index: 1;
    max-width: 1000px;
    text-align: center;
    margin: 0 auto;
}

.hero-banner-label {
    display: inline-block;
    padding: 8px 24px;
    background: rgba(79, 172, 254, 0.08);
    border: 1px solid rgba(79, 172, 254, 0.25);
    border-radius: 30px;
    font-size: 0.9rem;
    color: var(--accent-blue);
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 40px;
    backdrop-filter: blur(10px);
}

.hero-banner-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.4;
    margin-bottom: 32px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.banner-line-1,
.banner-line-3 {
    color: #fff;
    opacity: 0.9;
}

.banner-line-2 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 50%, #a18cd1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.05em;
}

.hero-banner-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 700px;
    margin: 0 auto 48px;
}

.hero-banner-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.banner-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.banner-stat-num {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.banner-stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

.banner-stat-divider {
    width: 1px;
    height: 48px;
    background: linear-gradient(180deg, transparent, rgba(79, 172, 254, 0.3), transparent);
}

.hero-banner-scroll-hint {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-tertiary);
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.banner-scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(180deg, var(--text-tertiary), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; opacity: 0; }
    50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
    100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* === Products Section === */
.products {
    padding: 100px 0;
    background: var(--bg-primary);
    position: relative;
}

.products::before {
    content: '';
    position: absolute;
    top: -100px;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(180deg, transparent, var(--bg-primary));
    pointer-events: none;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.product-card-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.12;
    transition: opacity 0.6s ease;
    z-index: 0;
}

.product-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(8,12,26,0.92) 0%, rgba(13,18,48,0.85) 50%, rgba(8,12,26,0.92) 100%);
    z-index: 1;
    transition: opacity 0.4s ease;
}

.product-card:hover .product-card-bg {
    opacity: 0.9;
}

.product-card:hover .product-card-overlay {
    opacity: 0.25;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition);
    z-index: 2;
}

.product-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-hover);
}

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

.product-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 24px;
    color: var(--accent-blue);
    position: relative;
    z-index: 2;
}

.product-icon svg {
    width: 100%;
    height: 100%;
}

.product-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #fff;
    position: relative;
    z-index: 2;
}

.product-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
    position: relative;
    z-index: 2;
}

.product-card .card-link {
    position: relative;
    z-index: 2;
}

.card-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-blue);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap var(--transition);
}

.card-link:hover {
    gap: 8px;
}

/* === Tech Capability === */
.tech-capability {
    padding: 100px 0;
    background: var(--bg-secondary);
    position: relative;
}

.tech-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.tech-item {
    display: flex;
    align-items: flex-start;
    gap: 40px;
    padding: 36px 0;
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition);
}

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

.tech-item:hover {
    padding-left: 16px;
}

.tech-num {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-blue);
    opacity: 0.4;
    min-width: 80px;
    transition: all var(--transition);
}

.tech-item:hover .tech-num {
    opacity: 1;
}

.tech-info h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #fff;
}

.tech-info p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 600px;
}

/* === Cases Preview === */
.cases-preview {
    padding: 100px 0;
    background: var(--bg-primary);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}

.case-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-hover);
}

.case-image {
    height: 220px;
    overflow: hidden;
}

.case-img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: flex-end;
    padding: 16px;
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transition: transform 0.5s ease;
}

.case-card:hover .case-img-placeholder {
    transform: scale(1.05);
}

/* 为没有实际图片的占位符保留渐变色 fallback */
.case-bg-1 {
    background: linear-gradient(135deg, #1a1a3e 0%, #0d1b3e 50%, #0a1628 100%);
    background-image:
        radial-gradient(circle at 30% 40%, rgba(79, 172, 254, 0.3) 0%, transparent 40%),
        linear-gradient(135deg, #1a1a3e 0%, #0d1b3e 50%, #0a1628 100%);
}

.case-bg-2 {
    background: linear-gradient(135deg, #1e1a3e 0%, #0d1b2d 50%, #0a1628 100%);
    background-image:
        radial-gradient(circle at 60% 30%, rgba(108, 92, 231, 0.3) 0%, transparent 40%),
        linear-gradient(135deg, #1e1a3e 0%, #0d1b2d 50%, #0a1628 100%);
}

.case-bg-3 {
    background: linear-gradient(135deg, #1a2e3e 0%, #0d1b2d 50%, #0a1628 100%);
    background-image:
        radial-gradient(circle at 40% 60%, rgba(0, 210, 255, 0.3) 0%, transparent 40%),
        linear-gradient(135deg, #1a2e3e 0%, #0d1b2d 50%, #0a1628 100%);
}

/* 图片上的暗色叠加层，让分类标签更清晰 */
.case-img-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(8,12,26,0.15) 0%, rgba(8,12,26,0.6) 100%);
    z-index: 1;
}

.case-category {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-blue);
    background: rgba(8, 12, 26, 0.7);
    padding: 4px 12px;
    border-radius: 20px;
    border: 1px solid rgba(79, 172, 254, 0.2);
    position: relative;
    z-index: 2;
}

.case-info {
    padding: 24px;
}

.case-info h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #fff;
}

.case-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

/* === Stats === */
.stats {
    padding: 80px 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(79, 172, 254, 0.3), transparent);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}

.stat-unit {
    font-size: 1.2rem;
    -webkit-text-fill-color: var(--accent-blue);
}

.stat-item p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* === News Preview === */
.news-preview {
    padding: 100px 0;
    background: var(--bg-primary);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.news-card {
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.news-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.news-date {
    font-size: 0.8rem;
    color: var(--accent-blue);
    margin-bottom: 12px;
    font-weight: 600;
}

.news-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-card h3 a:hover {
    color: var(--accent-blue);
}

.news-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* === CTA Section === */
.cta-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.cta-card {
    background: linear-gradient(135deg, #0d1b3e 0%, #1a1050 50%, #0a1628 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 72px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(circle at 30% 40%, rgba(79, 172, 254, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 70% 60%, rgba(108, 92, 231, 0.08) 0%, transparent 40%);
    animation: rotateGlow 20s linear infinite;
}

@keyframes rotateGlow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.cta-card h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.cta-card p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    position: relative;
    z-index: 1;
}

.cta-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    position: relative;
    z-index: 1;
}

/* === Footer === */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 64px 0 0;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.3fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 280px;
}

.footer-col h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col ul li,
.footer-col ul li a {
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: color var(--transition);
}

.footer-col ul li a:hover {
    color: #fff;
}

.contact-info li {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    border-top: 1px solid var(--border-color);
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-tertiary);
    font-size: 0.8rem;
}

.footer-links a:hover {
    color: #fff;
}

/* === Page Hero Banner (SenseFoundry Style - Inner Pages) === */
.page-hero-banner {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 80px 40px;
}

.page-hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.page-hero-bg-img {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.35;
    filter: saturate(0.8);
}

.page-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
        rgba(13, 18, 48, 0.85) 0%,
        rgba(10, 15, 40, 0.55) 30%,
        rgba(8, 12, 26, 0.5) 70%,
        rgba(8, 12, 26, 0.85) 100%);
}

.page-hero-particles {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 40%, rgba(79, 172, 254, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 60%, rgba(108, 92, 231, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(0, 210, 255, 0.06) 0%, transparent 50%);
    animation: bannerPulse 8s ease-in-out infinite alternate;
}

.page-hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    text-align: center;
    margin: 0 auto;
}

.page-hero-label {
    display: inline-block;
    padding: 6px 20px;
    background: rgba(79, 172, 254, 0.08);
    border: 1px solid rgba(79, 172, 254, 0.2);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--accent-blue);
    font-weight: 600;
    letter-spacing: 1.5px;
    margin-bottom: 28px;
}

.page-hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.4;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.page-hero-title span:first-child {
    color: #fff;
}

.page-hero-content p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 550px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .page-hero-banner {
        min-height: auto;
        padding: 60px 24px;
    }
    .page-hero-title {
        font-size: 1.6rem;
    }
}

@media (max-width: 480px) {
    .page-hero-title {
        font-size: 1.3rem;
    }
}

/* === Page Banner (Inner Pages) === */
.page-banner {
    padding: 160px 0 80px;
    text-align: center;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(79, 172, 254, 0.1) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 100%, rgba(108, 92, 231, 0.08) 0%, transparent 60%);
}

.page-banner h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
    position: relative;
}

.page-banner p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.page-content {
    padding: 80px 0;
}

/* === Solutions Page === */
.solutions-section {
    padding: 60px 0;
    border-bottom: 1px solid var(--border-color);
}

.solutions-section:last-child {
    border-bottom: none;
}

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

.solution-block.reverse {
    direction: rtl;
}

.solution-block.reverse .solution-text {
    direction: ltr;
}

.solution-visual {
    height: 360px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.solution-visual-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.2;
    z-index: 0;
    transition: opacity 0.5s ease;
}

.solution-visual:hover .solution-visual-bg {
    opacity: 0.35;
}

.solution-visual-inner {
    text-align: center;
    z-index: 1;
}

.solution-icon-large {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    color: var(--accent-blue);
}

.solution-icon-large svg {
    width: 100%;
    height: 100%;
}

.solution-visual h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
}

.solution-text h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.solution-text p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.solution-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.solution-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: 8px 0;
}

.feature-dot {
    width: 6px;
    height: 6px;
    background: var(--accent-blue);
    border-radius: 50%;
    flex-shrink: 0;
}

/* === Cases Page === */
.cases-filter {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 30px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: rgba(79, 172, 254, 0.15);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.cases-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

/* === About Page === */
.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.about-image-placeholder {
    height: 400px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--accent-blue);
    position: relative;
    overflow: hidden;
}

.about-text h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.about-text p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 16px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.value-card {
    text-align: center;
    padding: 36px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.value-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.value-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.value-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.value-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.honor-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.honor-item {
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition);
}

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

.honor-year {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-blue);
    margin-bottom: 8px;
}

.honor-item h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.honor-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.honor-badge-img {
    width: 100%;
    height: 140px;
    margin-bottom: 16px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--bg-card);
}

/* === News Page === */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-item {
    display: flex;
    gap: 32px;
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.news-item:hover {
    border-color: var(--border-hover);
    transform: translateX(6px);
    box-shadow: var(--shadow-hover);
}

.news-item-date {
    min-width: 90px;
    text-align: center;
}

.news-item-date .day {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-blue);
    display: block;
    line-height: 1;
}

.news-item-date .month-year {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.news-item-content h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.news-item-content h3 a:hover {
    color: var(--accent-blue);
}

.news-item-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 12px;
}

.news-tag {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--accent-blue);
    background: rgba(79, 172, 254, 0.1);
    padding: 3px 12px;
    border-radius: 12px;
}

/* === Pagination === */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
}

.pagination .page-btn {
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition);
    user-select: none;
}

.pagination .page-btn:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background: rgba(79, 172, 254, 0.08);
}

.pagination .page-btn.active {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: #fff;
    font-weight: 600;
}

.pagination .page-btn.disabled {
    opacity: 0.35;
    pointer-events: none;
}

.pagination .page-ellipsis {
    width: 40px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* === Contact Page === */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info-section h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 32px;
}

.contact-method {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-method-icon {
    width: 48px;
    height: 48px;
    background: rgba(79, 172, 254, 0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.contact-method-text h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

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

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.contact-form h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 28px;
}

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

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: #fff;
    font-size: 0.95rem;
    font-family: inherit;
    transition: all var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: rgba(79, 172, 254, 0.05);
    box-shadow: 0 0 0 3px rgba(79, 172, 254, 0.1);
}

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

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
    cursor: pointer;
}

.form-group select option {
    background: #1a1f3a;
    color: #e0e6f0;
}

.form-submit {
    width: 100%;
    padding: 14px;
    margin-top: 8px;
    cursor: pointer;
}

/* === Animations (AOS - Animate on Scroll) === */
[data-aos] {
    opacity: 0;
    transition: all var(--transition-slow);
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(40px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-right"] {
    transform: translateX(-40px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
}

/* === Responsive Design === */
@media (max-width: 1200px) {
    .product-grid,
    .cases-grid,
    .news-grid,
    .cases-list {
        grid-template-columns: repeat(2, 1fr);
    }
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .mega-menu {
        min-width: 600px;
    }
}

@media (max-width: 1024px) {
    .solution-block {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .solution-block.reverse {
        direction: ltr;
    }
    .about-intro,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }

    .section-container {
        padding: 0 24px;
    }

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

    /* Mobile Nav */
    .main-nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(8, 12, 26, 0.98);
        backdrop-filter: blur(20px);
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
    }

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

    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

    .nav-item a {
        font-size: 1.2rem;
        padding: 12px 24px;
    }

    .mega-menu {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

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

    .btn-nav-cta {
        display: none;
    }

    /* Hero Banner */
    .hero-banner-section {
        min-height: auto;
        padding: 80px 24px;
    }
    .hero-banner-title {
        font-size: 1.8rem;
    }
    .hero-banner-stats {
        gap: 24px;
    }
    .banner-stat-num {
        font-size: 1.8rem;
    }
    .banner-stat-divider {
        height: 32px;
    }

    /* Hero Carousel */
    .hero-carousel {
        padding: 100px 40px 60px;
    }
    .carousel-card {
        min-height: 350px;
    }
    .carousel-card-content {
        padding: 40px 32px;
        min-height: 350px;
    }
    .carousel-card-content h2 {
        font-size: 2rem;
    }
    .carousel-card-content p {
        font-size: 0.9rem;
    }
    .carousel-arrow {
        display: none;
    }
    .hero-title {
        font-size: 2.2rem;
    }
    .hero-desc {
        font-size: 0.95rem;
    }
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    /* Grids */
    .product-grid,
    .cases-grid,
    .news-grid,
    .cases-list,
    .stats-grid,
    .values-grid,
    .honor-list {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        gap: 32px;
    }

    .news-item {
        flex-direction: column;
        gap: 12px;
    }

    .news-item-date {
        text-align: left;
        min-width: auto;
    }

    .news-item-date .day {
        font-size: 1.4rem;
        display: inline;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .cta-card {
        padding: 48px 24px;
    }

    .cta-btns {
        flex-direction: column;
        align-items: center;
    }

    .solution-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-banner-title {
        font-size: 1.4rem;
    }
    .hero-banner-stats {
        gap: 16px;
    }
    .banner-stat-num {
        font-size: 1.5rem;
    }

    .hero-carousel {
        padding: 90px 16px 50px;
    }
    .carousel-card {
        min-height: 320px;
        border-radius: 16px;
    }
    .carousel-card-content {
        padding: 32px 24px;
        min-height: 320px;
    }
    .carousel-card-content h2 {
        font-size: 1.5rem;
    }
    .carousel-card-content p {
        font-size: 0.82rem;
    }
    .carousel-card-label {
        font-size: 0.75rem;
        margin-bottom: 16px;
    }

    .hero-title {
        font-size: 1.8rem;
    }
    .page-banner h1 {
        font-size: 2rem;
    }
    .section-title {
        font-size: 1.5rem;
    }
    .contact-form {
        padding: 24px;
    }
}