/* ============================================
   杭州晓森科技有限公司 - 官网样式 v3
   设计风格：腾讯管家风格 · 清爽科技感 · 淡蓝色调
   ============================================ */

/* --- CSS Variables --- */
:root {
    --primary: #2B6FF2;
    --primary-light: #69B1FF;
    --primary-dark: #1D39C4;
    --accent: #2B6FF2;
    --accent-glow: #4096FF;
    --gradient-primary: linear-gradient(135deg, #2B6FF2 0%, #4096FF 50%, #69B1FF 100%);
    --gradient-hero: linear-gradient(160deg, #F0F5FF 0%, #E8F0FE 30%, #F5F8FF 60%, #EEF3FA 100%);
    --gradient-card: linear-gradient(135deg, rgba(43,111,242,0.06) 0%, rgba(64,150,255,0.06) 100%);
    --bg-primary: #FFFFFF;
    --bg-secondary: #F5F8FF;
    --bg-dark: #F0F4FA;
    --text-primary: #1A1A1A;
    --text-secondary: #555555;
    --text-tertiary: #8E8E8E;
    --text-light: #FFFFFF;
    --text-muted: rgba(0,0,0,0.45);
    --border: rgba(0,0,0,0.06);
    --border-light: rgba(43,111,242,0.15);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
    --shadow-xl: 0 24px 60px rgba(0,0,0,0.10);
    --shadow-glow: 0 0 30px rgba(43,111,242,0.2), 0 0 60px rgba(64,150,255,0.1);
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --transition: cubic-bezier(0.4, 0, 0.2, 1);
    --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "HarmonyOS Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.7;
    overflow-x: hidden;
    cursor: default;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* --- Global Cursor Glow --- */
.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(43,111,242,0.10) 0%, transparent 70%);
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    opacity: 0;
}
.cursor-glow.active { opacity: 1; }

/* --- Container --- */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (max-width: 768px) {
    .container { padding: 0 24px; }
}

/* --- Section Base --- */
.section {
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}
.section-header {
    text-align: center;
    margin-bottom: 72px;
    position: relative;
}
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    background: rgba(43,111,242,0.08);
    padding: 8px 22px;
    border-radius: 100px;
    margin-bottom: 20px;
    letter-spacing: 1px;
    text-transform: uppercase;
    border: 1px solid rgba(43,111,242,0.15);
}
.section-tag::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 6px var(--primary); }
    50% { opacity: 0.3; box-shadow: 0 0 2px var(--primary); }
}
.section-title {
    font-size: 48px;
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: 20px;
}
.section-title .gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.8;
}

/* --- Light section (former section-dark) --- */
.section-dark {
    background: var(--bg-dark);
    position: relative;
}
.section-dark::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(43,111,242,0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(64,150,255,0.03) 0%, transparent 50%);
    pointer-events: none;
}
.section-dark .section-title { color: var(--text-primary); }
.section-dark .section-subtitle { color: var(--text-secondary); }
.section-dark .section-tag {
    background: rgba(43,111,242,0.08);
    color: var(--primary);
    border-color: rgba(43,111,242,0.15);
}

/* Section dark card overrides */
.section-dark .advantage-card {
    background: #FFFFFF;
    border: 1px solid rgba(43,111,242,0.08);
}
.section-dark .advantage-card:hover {
    background: rgba(43,111,242,0.03);
    border-color: rgba(43,111,242,0.3);
    box-shadow: 0 12px 40px rgba(0,0,0,0.08), 0 0 30px rgba(43,111,242,0.1);
}
.section-dark .advantage-card-title { color: var(--text-primary); }
.section-dark .advantage-card-desc { color: var(--text-secondary); }
.section-dark .advantage-card::before { background: var(--gradient-primary); }
.section-dark .advantage-card::after { background: var(--gradient-primary); }
.section-dark .advantage-card:hover .advantage-card-title { color: #fff; }
.section-dark .advantage-card:hover .advantage-card-desc { color: rgba(255,255,255,0.85); }

.section-gray {
    background: var(--bg-secondary);
    position: relative;
}
.section-gray::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(43,111,242,0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(64,150,255,0.03) 0%, transparent 50%);
    pointer-events: none;
}

/* --- Section Divider --- */
.section-divider {
    position: absolute;
    top: -1px;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    pointer-events: none;
}
.section-divider svg {
    position: relative;
    display: block;
    width: calc(100% + 2px);
    height: 60px;
}
.section-divider-bottom {
    top: auto;
    bottom: -1px;
    transform: rotate(180deg);
}

/* ============================================
   NAVIGATION - Clean light style
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 18px 0;
    transition: all 0.4s var(--transition);
    background: rgba(10,14,24,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}
.nav.scrolled {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border-bottom: 1px solid rgba(43,111,242,0.1);
    padding: 10px 0;
    box-shadow: 0 4px 30px rgba(43,111,242,0.08);
}
.nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 1px;
    transition: all 0.3s;
}
.nav-logo:hover {
    text-shadow: 0 0 20px rgba(255,255,255,0.5);
    color: #fff;
}
.nav.scrolled .nav-logo { color: var(--text-primary); }
.nav.scrolled .nav-logo:hover { text-shadow: 0 0 20px rgba(43,111,242,0.3); color: #2B6FF2; }
.nav-logo-img {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    object-fit: contain;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
}
.nav-link {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: rgba(255,255,255,0.75);
    border-radius: 8px;
    transition: all 0.3s;
    cursor: pointer;
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    left: 20px;
    right: 20px;
    bottom: 4px;
    height: 2px;
    border-radius: 2px;
    background: #fff;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s var(--transition);
}
.nav-link:hover {
    color: #fff;
    background: rgba(255,255,255,0.15);
}
.nav-link:hover::after {
    transform: scaleX(1);
}
.nav.scrolled .nav-link { color: var(--text-secondary); }
.nav.scrolled .nav-link:hover {
    color: #fff;
    background: rgba(43,111,242,0.15);
}
.nav.scrolled .nav-link:hover::after {
    transform: scaleX(1);
    background: var(--primary);
}

/* Products Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown-trigger {
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-dropdown-trigger svg {
    width: 12px;
    height: 12px;
    transition: transform 0.3s;
}
.nav-dropdown:hover .nav-dropdown-trigger svg { transform: rotate(180deg); }
.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(12px);
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid rgba(43,111,242,0.1);
    border-radius: var(--radius-md);
    padding: 8px;
    min-width: 300px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s var(--transition);
    box-shadow: 0 20px 60px rgba(43,111,242,0.08);
}
.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(6px);
}
.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    transition: all 0.25s;
    cursor: pointer;
}
.nav-dropdown-item:hover {
    background: rgba(43,111,242,0.08);
    color: var(--primary);
}
.nav-dropdown-item-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.nav-dropdown-item-icon svg,
.nav-dropdown-item-icon img {
    width: 20px;
    height: 20px;
}
.nav-dropdown-item-icon img {
    filter: brightness(0) invert(1);
}
.nav-dropdown-item-text { line-height: 1.3; }
.nav-dropdown-item-text strong {
    display: block;
    font-size: 14px;
}
.nav-dropdown-item-text span {
    font-size: 12px;
    color: var(--text-tertiary);
}

/* Dropdown cards layout */
.nav-dropdown-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    min-width: 560px;
    padding: 16px;
}
.nav-dropdown-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
    border-radius: var(--radius-md);
    background: #fff;
    border: 1px solid rgba(43,111,242,0.1);
    transition: all 0.25s;
    cursor: pointer;
}
.nav-dropdown-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(43,111,242,0.12);
    border-color: rgba(43,111,242,0.3);
}
.nav-card-head {
    display: flex;
    align-items: center;
    gap: 12px;
}
.nav-card-imgs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
}
.nav-card-img {
    aspect-ratio: 16 / 9;
    border-radius: 6px;
    background: var(--gradient-card);
    border: 1px dashed rgba(43,111,242,0.15);
}

/* Product Overview Cards */
.product-overview { padding: 72px 0; }
.product-overview-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
    max-width: 920px;
    margin: 0 auto;
}
.product-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 28px 24px;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    transition: transform 0.35s var(--transition), box-shadow 0.35s var(--transition);
    scroll-margin-top: 100px;
}
.product-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 0;
    height: 4px;
    background: var(--gradient-primary);
    transition: width 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}
.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}
.product-card:hover::before { width: 100%; }
.product-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
}
.product-card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}
.product-card-icon svg { width: 26px; height: 26px; }
.product-card-badge {
    font-size: 13px;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: 100px;
}
.product-card-title {
    font-size: 21px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 10px;
}
.product-card-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}
.product-card-imgs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}
.product-card-img {
    position: relative;
    aspect-ratio: 16 / 9;
    border-radius: 10px;
    background: var(--gradient-card);
    border: 1px dashed rgba(43,111,242,0.18);
    transition: border-color 0.3s;
    overflow: hidden;
    cursor: zoom-in;
}
.product-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.product-card-img::after {
    content: attr(data-caption);
    position: absolute;
    left: 0; right: 0; bottom: 0;
    padding: 14px 16px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(transparent, rgba(10,14,24,0.78));
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.3s, transform 0.3s;
    text-align: left;
    pointer-events: none;
}
.product-card-img:hover {
    border-color: rgba(43,111,242,0.35);
}
.product-card-img:hover::after {
    opacity: 1;
    transform: translateY(0);
}
.product-card:hover .product-card-img { border-color: rgba(43,111,242,0.35); }
.product-card-img-wide {
    margin-top: 10px;
    aspect-ratio: 21 / 9;
}

/* Full content card (for products with rich copy) */
.product-card-full { padding: 32px 28px; }
.product-card-intro {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.9;
    margin: 6px 0 22px;
}
.product-card-intro .hl {
    color: #FE9522;
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 3px;
}
.product-card-section { margin-bottom: 22px; }
.product-card-subtitle {
    display: inline-block;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px 14px;
    margin-bottom: 14px;
}
.product-card-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.product-card-list li {
    position: relative;
    padding: 6px 0 6px 24px;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
}
.product-card-list li::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 16px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
}
.product-card-list li strong {
    color: var(--text-primary);
    font-weight: 700;
}
.product-card-list.cols-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 28px;
}
.product-card-list.cols-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    column-gap: 24px;
}

/* Media feature grid (融媒体 6 项卡片) */
.media-feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}
.media-feature-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 16px;
    transition: border-color 0.3s, transform 0.3s;
}
.media-feature-item:hover {
    border-color: rgba(108,60,224,0.35);
    transform: translateY(-2px);
}
.media-feature-item strong {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.media-feature-item span {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-secondary);
}

@media (max-width: 640px) {
    .product-overview { padding: 48px 0; }
    .product-card, .product-card-full { padding: 24px 18px; }
    .product-card-intro { font-size: 15px; }
    .product-card-list li { font-size: 15px; }
    .product-card-list.cols-2 { grid-template-columns: 1fr; }
    .product-card-list.cols-4 { grid-template-columns: repeat(2, 1fr); }
    .media-feature-grid { grid-template-columns: 1fr; }
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(10,14,24,0.88);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    z-index: 2000;
    cursor: zoom-out;
}
.lightbox.active { opacity: 1; visibility: visible; }
.lightbox-img {
    max-width: 92vw;
    max-height: 82vh;
    border-radius: 12px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.5);
    object-fit: contain;
}
.lightbox-caption {
    margin-top: 18px;
    color: #fff;
    font-size: 17px;
    font-weight: 600;
    text-align: center;
}
.lightbox-close {
    position: absolute;
    top: 24px;
    right: 32px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255,255,255,0.12);
    color: #fff;
    font-size: 30px;
    line-height: 44px;
    text-align: center;
    cursor: pointer;
    transition: background 0.25s;
}
.lightbox-close:hover { background: rgba(255,255,255,0.25); }

/* About lightbox: left image + right text */
.lightbox-content {
    display: flex;
    align-items: center;
    gap: 36px;
    max-width: 1000px;
    width: 100%;
}
.lightbox-media {
    flex: 1 1 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.lightbox-text {
    flex: 1 1 50%;
    color: #fff;
    text-align: left;
}
.lightbox-title {
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 16px;
    color: #fff;
}
.lightbox-desc {
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255,255,255,0.85);
}
.lightbox-desc:empty::before {
    content: '（在此填写说明文字）';
    color: rgba(255,255,255,0.35);
    font-style: italic;
}
@media (max-width: 720px) {
    .lightbox-content { flex-direction: column; gap: 20px; }
    .lightbox-media, .lightbox-text { flex: 1 1 100%; }
    .lightbox-text { text-align: center; }
}

/* Mobile Nav */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}
.nav-toggle span {
    width: 24px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.3s;
}
.nav.scrolled .nav-toggle span { background: var(--text-primary); }
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

@media (max-width: 900px) {
    .nav-toggle { display: flex; }
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        flex-direction: column;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(40px);
        padding: 100px 28px 40px;
        gap: 6px;
        transition: right 0.4s var(--transition);
        box-shadow: -10px 0 40px rgba(43,111,242,0.08);
    }
    .nav-links.active { right: 0; }
    .nav-links .nav-link { color: var(--text-secondary); width: 100%; padding: 14px 18px; }
    .nav-links .nav-link:hover { color: var(--primary); background: rgba(43,111,242,0.06); }
    .nav-dropdown-menu {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        background: transparent;
        border: none;
        box-shadow: none;
        padding-left: 16px;
    }
    .nav-dropdown-cards { grid-template-columns: 1fr; min-width: 0; padding: 0; }
    .nav-dropdown:hover .nav-dropdown-menu { transform: none; }
}

/* ============================================
   HERO SECTION - Light blue gradient
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

/* Animated gradient mesh */
.hero-bg-mesh {
    position: absolute;
    inset: -50%;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(43,111,242,0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 60%, rgba(64,150,255,0.10) 0%, transparent 40%),
        radial-gradient(ellipse at 50% 80%, rgba(105,177,255,0.08) 0%, transparent 40%),
        radial-gradient(ellipse at 20% 70%, rgba(43,111,242,0.05) 0%, transparent 40%);
    animation: meshFloat 20s ease-in-out infinite;
    pointer-events: none;
}
@keyframes meshFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(-30px, 20px) rotate(2deg); }
    66% { transform: translate(20px, -30px) rotate(-2deg); }
}

/* Grid overlay */
.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(43,111,242,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(43,111,242,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

/* Floating geometric shapes */
.hero-shapes {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}
.hero-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.25;
}
.hero-shape:nth-child(1) {
    width: 500px; height: 500px;
    background: rgba(43,111,242,0.08);
    top: -10%; right: -5%;
    animation: heroFloat1 12s ease-in-out infinite;
}
.hero-shape:nth-child(2) {
    width: 350px; height: 350px;
    background: rgba(64,150,255,0.06);
    bottom: -5%; left: -5%;
    animation: heroFloat2 15s ease-in-out infinite;
}
.hero-shape:nth-child(3) {
    width: 250px; height: 250px;
    background: rgba(105,177,255,0.05);
    top: 50%; left: 60%;
    animation: heroFloat3 18s ease-in-out infinite;
}
@keyframes heroFloat1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-40px, 30px) scale(1.1); }
    66% { transform: translate(30px, -20px) scale(0.9); }
}
@keyframes heroFloat2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(50px, -40px) scale(1.15); }
}
@keyframes heroFloat3 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-30px, 40px); }
}

/* Hero particles */
.hero-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 750px;
}

/* Hero Badge */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.7);
    border: 1px solid rgba(43,111,242,0.15);
    padding: 8px 22px;
    border-radius: 100px;
    font-size: 13px;
    color: var(--primary);
    margin-bottom: 36px;
    backdrop-filter: blur(20px);
    letter-spacing: 0.5px;
    font-weight: 600;
    animation: badgeGlow 3s ease-in-out infinite;
}
@keyframes badgeGlow {
    0%, 100% { border-color: rgba(43,111,242,0.15); }
    50% { border-color: rgba(43,111,242,0.35); }
}
.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
    box-shadow: 0 0 10px rgba(43,111,242,0.5);
}

/* Hero Title */
.hero-title {
    font-size: 64px;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -2px;
    color: var(--text-primary);
    margin-bottom: 28px;
}
.hero-title span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 19px;
    color: var(--text-secondary);
    line-height: 1.9;
    max-width: 600px;
    margin-bottom: 44px;
    font-weight: 400;
}

/* Hero Actions */
.hero-actions {
    display: flex;
    gap: 18px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    border-radius: 14px;
    font-size: 15px;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: all 0.35s var(--transition);
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}
.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
    opacity: 0;
    transition: opacity 0.35s;
}
.btn:hover::after { opacity: 1; }

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 8px 24px rgba(43,111,242,0.3);
    border: 2px solid transparent;
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 40px rgba(43,111,242,0.45), 0 0 30px rgba(43,111,242,0.15);
}
.btn-outline {
    background: rgba(43,111,242,0.04);
    color: var(--primary);
    border: 1.5px solid rgba(43,111,242,0.2);
    backdrop-filter: blur(20px);
}
.btn-outline:hover {
    background: rgba(43,111,242,0.08);
    border-color: rgba(43,111,242,0.4);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(43,111,242,0.12);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: 56px;
    margin-top: 72px;
}
.hero-stat { text-align: left; }
.hero-stat-number {
    font-size: 42px;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
}
.hero-stat-label {
    font-size: 14px;
    color: var(--text-tertiary);
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 2;
    opacity: 0.5;
    animation: scrollBounce 2s ease-in-out infinite;
}
.scroll-indicator span {
    font-size: 11px;
    color: var(--text-tertiary);
    letter-spacing: 2px;
    text-transform: uppercase;
}
.scroll-indicator .scroll-mouse {
    width: 26px;
    height: 40px;
    border: 2px solid rgba(43,111,242,0.25);
    border-radius: 13px;
    position: relative;
}
.scroll-indicator .scroll-dot {
    width: 4px;
    height: 8px;
    background: var(--primary);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollDot 1.8s ease-in-out infinite;
}
@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}
@keyframes scrollDot {
    0% { opacity: 1; top: 6px; }
    50% { opacity: 0.3; top: 20px; }
    100% { opacity: 1; top: 6px; }
}

@media (max-width: 768px) {
    .hero { padding: 140px 0 60px; }
    .hero-title { font-size: 38px; }
    .hero-desc { font-size: 16px; }
    .hero-stats { gap: 32px; flex-wrap: wrap; }
    .hero-stat-number { font-size: 32px; }
}

/* ============================================
   ABOUT SECTION - ENHANCED
   ============================================ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
}
.about-image { position: relative; }
.about-image-card {
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    padding: 56px 48px;
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-glow);
    transform: perspective(1000px) rotateY(0deg);
    transition: transform 0.5s var(--transition);
}
.about-image-card:hover {
    transform: perspective(1000px) rotateY(-3deg) translateX(-5px);
}
.about-image-card::before {
    content: '';
    position: absolute;
    width: 300px; height: 300px;
    background: rgba(255,255,255,0.06);
    border-radius: 50%;
    top: -80px; right: -80px;
    transition: all 0.5s;
}
.about-image-card::after {
    content: '';
    position: absolute;
    width: 200px; height: 200px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
    bottom: -60px; left: -60px;
}
.about-image-card h3 {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}
.about-image-card p {
    font-size: 16px;
    opacity: 0.9;
    line-height: 1.9;
    position: relative;
    z-index: 1;
}
.about-text h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.3;
}
.about-text p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 18px;
}

/* About visual placeholder */
.about-visual { position: relative; }
.about-image-wrapper { position: relative; margin-bottom: 24px; }
.about-image-placeholder {
    width: 100%;
    aspect-ratio: 16/10;
    background: linear-gradient(135deg, rgba(43,111,242,0.06), rgba(105,177,255,0.03));
    border: 1px solid rgba(43,111,242,0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.about-stats-card {
    display: inline-block;
    background: #fff;
    border: 1px solid rgba(43,111,242,0.1);
    border-radius: var(--radius-md);
    padding: 16px 28px;
    box-shadow: var(--shadow-md);
    position: absolute;
    bottom: 0;
    right: 0;
}
.about-stats-number {
    font-size: 28px;
    font-weight: 900;
    color: var(--primary);
}
.about-stats-label {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-top: 4px;
}

/* About single card */
.about-card-single {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s var(--transition);
}
.about-card-single::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px 0 0 4px;
    transition: width 0.4s var(--transition);
}
/* 引用标记 */
.about-card-single::after {
    content: '"';
    position: absolute;
    right: 30px;
    top: -15px;
    font-size: 140px;
    font-family: Georgia, 'Times New Roman', serif;
    color: rgba(43,111,242,0.03);
    line-height: 1;
    pointer-events: none;
    transition: all 0.5s var(--transition);
}
/* Hover 引用效果 */
.about-card-single:hover {
    border-color: rgba(43,111,242,0.2);
    box-shadow: 0 12px 48px rgba(43,111,242,0.1);
    transform: translateY(-4px);
}
.about-card-single:hover::before {
    width: 6px;
    background: var(--gradient-accent);
}
.about-card-single:hover::after {
    right: 24px;
    top: -5px;
    font-size: 160px;
    color: rgba(254,149,34,0.06);
}
.about-card-single:hover .about-card-lead,
.about-card-single:hover .about-card-body {
    transform: translateX(8px);
}
.about-card-badge {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 20px;
    background: rgba(43,111,242,0.08);
    color: var(--primary);
    margin-bottom: 20px;
    transition: all 0.4s var(--transition);
}
.about-card-single:hover .about-card-badge {
    background: rgba(254,149,34,0.12);
    color: var(--accent);
}
.about-card-lead {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.8;
    margin-bottom: 16px;
    transition: transform 0.4s var(--transition);
}
.about-card-body {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 12px;
    transition: transform 0.4s var(--transition);
}
.about-card-body:last-child { margin-bottom: 0; }

@media (max-width: 900px) {
    .about-card-single { padding: 28px 24px; }
}

/* About images grid (full display, no crop) */
.about-imgs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 16px;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}
/* 三张图等大、各自圆角、中间与左右有空隙 */
.about-imgs .about-img {
    border-radius: 10px;
}
.about-img {
    border-radius: 10px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 3 / 4;
    transition: transform 0.35s var(--transition), box-shadow 0.35s var(--transition);
}
.about-img:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 16px 40px rgba(43,111,242,0.18);
}
.about-img img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}
@media (max-width: 640px) {
    .about-imgs { grid-template-columns: 1fr; padding: 0 24px; }
}

/* About feature cards grid */
.about-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.about-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: all 0.3s var(--transition);
    cursor: default;
}
.about-card:hover {
    border-color: rgba(43,111,242,0.25);
    box-shadow: 0 8px 32px rgba(43,111,242,0.08);
    transform: translateY(-2px);
}
.about-card-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: rgba(43,111,242,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: 14px;
}
.about-card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.about-card-desc {
    font-size: 16px;
    color: var(--text-tertiary);
    line-height: 1.7;
    margin: 0;
}

@media (max-width: 900px) {
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .about-image-card { padding: 40px 32px; }
    .about-cards { grid-template-columns: 1fr; }
}

/* ============================================
   TIMELINE - ENHANCED
   ============================================ */
.timeline {
    position: relative;
    padding: 30px 0;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(180deg,
        var(--primary) 0%,
        var(--primary-light) 30%,
        var(--accent-glow) 70%,
        transparent 100%);
    transform: translateX(-50%);
}
.timeline-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 72px;
    position: relative;
}
.timeline-item:nth-child(odd) { flex-direction: row; }
.timeline-item:nth-child(even) { flex-direction: row-reverse; }
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
    position: absolute;
    left: 50%;
    top: 12px;
    transform: translateX(-50%);
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: 50%;
    z-index: 1;
    box-shadow: 0 0 0 8px rgba(43,111,242,0.15), 0 0 20px rgba(43,111,242,0.25);
    animation: timelinePulse 3s ease-in-out infinite;
}
.timeline-item:hover .timeline-dot {
    box-shadow: 0 0 0 14px rgba(43,111,242,0.2), 0 0 40px rgba(43,111,242,0.35);
}
@keyframes timelinePulse {
    0%, 100% { box-shadow: 0 0 0 8px rgba(43,111,242,0.15), 0 0 20px rgba(43,111,242,0.25); }
    50% { box-shadow: 0 0 0 14px rgba(43,111,242,0.22), 0 0 35px rgba(43,111,242,0.4); }
}
.timeline-content {
    width: 42%;
    padding: 32px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.4s var(--transition);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}
.timeline-content::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    opacity: 0;
    transition: opacity 0.4s;
}
.timeline-content:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(43,111,242,0.25);
}
.timeline-content:hover::before { opacity: 1; }
.timeline-year {
    font-size: 32px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
    letter-spacing: -1px;
}
.timeline-title {
    font-size: 21px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}
.timeline-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Timeline in light section */
.section-dark .timeline-content {
    background: #FFFFFF;
    border: 1px solid rgba(43,111,242,0.08);
    box-shadow: var(--shadow-sm);
}
.section-dark .timeline-content::before {
    background: var(--gradient-primary);
}
.section-dark .timeline-content:hover {
    border-color: rgba(43,111,242,0.3);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(43,111,242,0.08);
}
.section-dark .timeline-title { color: var(--text-primary); }
.section-dark .timeline-desc { color: var(--text-secondary); }
.section-dark .timeline::before {
    background: linear-gradient(180deg,
        var(--primary) 0%,
        var(--primary-light) 30%,
        var(--accent-glow) 70%,
        transparent 100%);
}

@media (max-width: 768px) {
    .timeline::before { left: 24px; }
    .timeline-item, .timeline-item:nth-child(even) { flex-direction: row; padding-left: 56px; }
    .timeline-dot { left: 24px; }
    .timeline-content { width: 100%; }
}

/* ============================================
   ADVANTAGES - ENHANCED WITH 3D TILT
   ============================================ */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.advantage-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    transition: all 0.4s var(--transition);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transform-style: preserve-3d;
    perspective: 1000px;
}
.advantage-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s var(--transition);
}
.advantage-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.5s;
    z-index: 0;
}
.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl), 0 0 50px rgba(43,111,242,0.12);
    border-color: transparent;
}
.advantage-card:hover::before { transform: scaleX(1); }
.advantage-card:hover::after { opacity: 1; }
.advantage-card:hover .advantage-icon,
.advantage-card:hover .advantage-card-title,
.advantage-card:hover .advantage-card-desc,
.advantage-card:hover .advantage-features li {
    color: #fff;
    position: relative;
    z-index: 1;
}
.advantage-card:hover .advantage-icon {
    background: rgba(255,255,255,0.2);
    box-shadow: 0 0 20px rgba(255,255,255,0.1);
}
.advantage-card:hover .advantage-features li::before {
    background: rgba(255,255,255,0.5);
}

.advantage-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: var(--gradient-card);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: all 0.5s;
    position: relative;
    z-index: 1;
}
.advantage-icon svg, .advantage-icon img {
    width: 28px;
    height: 28px;
}
.advantage-card:hover .advantage-icon img {
    filter: brightness(0) invert(1);
}
.advantage-card-title {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 14px;
    transition: color 0.5s;
    position: relative;
    z-index: 1;
}
.advantage-card-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
    transition: color 0.5s;
    position: relative;
    z-index: 1;
}
.advantage-features {
    position: relative;
    z-index: 1;
}
.advantage-features li {
    font-size: 16px;
    color: var(--text-secondary);
    padding: 5px 0 5px 20px;
    position: relative;
    transition: color 0.5s;
}
.advantage-features li::before {
    content: '';
    position: absolute;
    left: 0; top: 13px;
    width: 5px; height: 5px;
    background: var(--primary);
    border-radius: 50%;
    transition: background 0.5s;
}

@media (max-width: 1024px) {
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .advantages-grid { grid-template-columns: 1fr; }
}

/* ============================================
   PRODUCTS SHOWCASE - Light style
   ============================================ */
.products-showcase {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.product-showcase-item {
    display: block;
    text-decoration: none;
    color: inherit;
    background: #FFFFFF;
    border: 1px solid rgba(43,111,242,0.08);
    border-radius: var(--radius-xl);
    padding: 36px 28px;
    transition: all 0.4s var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}
.product-showcase-item::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s var(--transition);
}
.product-showcase-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl), 0 20px 60px rgba(43,111,242,0.08);
    border-color: rgba(43,111,242,0.2);
}
.product-showcase-item:hover::before { transform: scaleX(1); }
.product-showcase-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    margin-bottom: 16px;
}
.product-showcase-icon svg { width: 24px; height: 24px; }
.product-showcase-badge {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: 20px;
    background: rgba(43,111,242,0.1);
    color: var(--primary);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}
.product-showcase-item h3 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 12px;
}
.product-showcase-item > p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 6px;
}
.product-showcase-item > p:last-of-type {
    margin-bottom: 18px;
}
.product-showcase-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}
.product-showcase-tags span {
    font-size: 14px;
    padding: 4px 12px;
    border-radius: 6px;
    background: rgba(43,111,242,0.06);
    color: var(--primary);
    font-weight: 500;
}
.product-showcase-link {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    transition: all 0.3s;
}
.product-showcase-link:hover {
    gap: 8px;
}

/* More products card */
.product-showcase-more {
    background: transparent !important;
    border: 2px dashed rgba(43,111,242,0.2) !important;
    box-shadow: none !important;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.product-showcase-more::before { display: none; }
.product-showcase-more:hover {
    border-color: rgba(43,111,242,0.45) !important;
    background: rgba(43,111,242,0.03) !important;
}
.product-showcase-more-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--primary);
}
.product-showcase-more-inner h3 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0;
}
.product-showcase-more-inner p {
    font-size: 16px;
    color: var(--text-tertiary);
    margin: 0;
}

@media (max-width: 1024px) {
    .products-showcase { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .products-showcase { grid-template-columns: 1fr; }
}

/* Section dark: products showcase overrides */
.section-dark .product-showcase-item {
    background: #FFFFFF;
    border-color: rgba(43,111,242,0.08);
}

/* ============================================
   PRODUCTS PREVIEW - ENHANCED
   ============================================ */
.products-preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 56px;
}
.product-preview-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px 28px;
    text-align: center;
    transition: all 0.45s var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}
.product-preview-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.5s var(--transition);
}
.product-preview-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, rgba(43,111,242,0.06), transparent 70%);
    opacity: 0;
    transition: opacity 0.5s;
}
.product-preview-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl), 0 20px 60px rgba(43,111,242,0.08);
}
.product-preview-card:hover::before { transform: scaleX(1); }
.product-preview-card:hover::after { opacity: 1; }

.product-preview-icon {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-lg);
    background: var(--gradient-card);
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.5s;
    position: relative;
}
.product-preview-card:hover .product-preview-icon {
    background: var(--gradient-primary);
    transform: scale(1.1);
    box-shadow: 0 10px 30px rgba(43,111,242,0.3);
}
.product-preview-icon svg, .product-preview-icon img {
    width: 36px;
    height: 36px;
    transition: filter 0.5s;
}
.product-preview-card:hover .product-preview-icon img {
    filter: brightness(0) invert(1);
}
.product-preview-card h4 {
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 12px;
    position: relative;
}
.product-preview-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    position: relative;
}
.product-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 18px;
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
    transition: all 0.3s;
    position: relative;
}
.product-link:hover { gap: 14px; color: var(--primary-dark); }
.product-link svg {
    width: 14px;
    height: 14px;
    transition: transform 0.3s;
}
.product-link:hover svg { transform: translateX(4px); }

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

@media (max-width: 1024px) {
    .products-preview-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .products-preview-grid { grid-template-columns: 1fr; }
}

/* ============================================
   CLIENTS WARP - 穿越时空飞入效果
   ============================================ */
.clients-warp {
    position: relative;
    overflow: hidden;
    padding: 0;
    perspective: 1200px;
}

/* 速度线背景 */
.warp-speedlines {
    position: absolute;
    inset: -100px;
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    transition: opacity 1.2s ease-out;
}
.warp-speedlines.active {
    opacity: 1;
}
.warp-speedlines::before,
.warp-speedlines::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(
            85deg,
            transparent,
            transparent 3px,
            rgba(43,111,242,0.04) 3px,
            rgba(43,111,242,0.04) 4px
        ),
        repeating-linear-gradient(
            92deg,
            transparent,
            transparent 6px,
            rgba(43,111,242,0.02) 6px,
            rgba(43,111,242,0.02) 7px
        );
}
.warp-speedlines::after {
    background:
        repeating-linear-gradient(
            88deg,
            transparent,
            transparent 8px,
            rgba(43,111,242,0.03) 8px,
            rgba(43,111,242,0.03) 9px
        );
    animation: speedlineShift 0.8s linear infinite;
}
@keyframes speedlineShift {
    0% { transform: translateX(0); }
    100% { transform: translateX(10px); }
}

/* Grid 布局 */
.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 16px;
    position: relative;
    z-index: 1;
}

/* warp-card 飞入动画核心 */
.warp-card {
    position: relative;
    background: linear-gradient(135deg, rgba(43,111,242,0.04), rgba(105,177,255,0.02));
    border: 1px solid rgba(43,111,242,0.12);
    border-radius: 12px;
    padding: 16px 14px;
    text-align: center;
    cursor: default;
    overflow: hidden;

    /* 初始状态：远处 */
    opacity: 0;
    filter: blur(8px);
    transform: translateZ(-600px) scale(0.05) rotateX(40deg);
    will-change: transform, opacity, filter;

    /* 动画：速度差异化 */
    animation: warpFlyIn var(--dur, 1.2s) cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
    animation-delay: calc(var(--w) * 0.08s + 0.2s);
    animation-play-state: paused;
}
.clients-warp.warp-active .warp-card {
    animation-play-state: running;
}

/* 光尾效果 */
.warp-card::before {
    content: '';
    position: absolute;
    top: 50%; left: 100%;
    width: 200px; height: 1px;
    background: linear-gradient(90deg, rgba(43,111,242,0.6), transparent);
    transform: translateY(-50%);
    opacity: 0;
    transition: opacity 0.5s;
}
.clients-warp.warp-active .warp-card::before {
    animation: warpTrail var(--trail-dur, 0.6s) ease-out forwards;
    animation-delay: calc(var(--w) * 0.08s + 0.1s);
}

.warp-card span {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

/* 卡片悬停效果 - 淡蓝色 */
.warp-card:hover {
    background: linear-gradient(135deg, rgba(43,111,242,0.10), rgba(105,177,255,0.06));
    border-color: rgba(43,111,242,0.4);
    box-shadow: 0 0 24px rgba(43,111,242,0.18), 0 4px 20px rgba(43,111,242,0.08);
    transform: translateY(-3px) scale(1.03);
    transition: all 0.3s ease;
}
.warp-card:hover span {
    color: var(--primary);
}

/* 飞入关键帧 */
@keyframes warpFlyIn {
    0% {
        opacity: 0;
        filter: blur(12px);
        transform: translateZ(-600px) scale(0.03) rotateX(45deg);
    }
    30% {
        opacity: 0.4;
        filter: blur(4px);
    }
    60% {
        opacity: 0.8;
        filter: blur(1px);
        transform: translateZ(-80px) scale(0.85) rotateX(8deg);
    }
    80% {
        filter: blur(0);
        transform: translateZ(0) scale(1.02) rotateX(0deg);
    }
    100% {
        opacity: 1;
        filter: blur(0);
        transform: translateZ(0) scale(1) rotateX(0deg);
    }
}

/* 光尾动画 */
@keyframes warpTrail {
    0% { opacity: 1; width: 250px; }
    100% { opacity: 0; width: 0px; }
}

/* 响应式 */
@media (max-width: 1024px) {
    .clients-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 12px; }
    .warp-card span { font-size: 12px; }
}
@media (max-width: 640px) {
    .clients-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }
    .clients-warp { min-height: 400px; perspective: 800px; }
    .warp-card { padding: 12px 8px; }
    .warp-card span { font-size: 11px; }
}

/* ============================================
   VISION - Blue gradient card
   ============================================ */
.vision-content {
    text-align: center;
    padding: 40px 0;
}
.vision-content .section-tag {
    margin-bottom: 24px;
}
.vision-title {
    font-size: 36px;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: 24px;
    letter-spacing: 2px;
    line-height: 1.4;
}
.vision-title span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.vision-desc {
    font-size: 20px;
    color: var(--text-secondary);
    line-height: 2;
    max-width: 750px;
    margin: 0 auto;
}

.vision-card {
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    padding: 72px 56px;
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-glow);
}
.vision-card::before {
    content: '';
    position: absolute;
    width: 400px; height: 400px;
    background: rgba(255,255,255,0.06);
    border-radius: 50%;
    top: -120px; right: -120px;
}
.vision-card::after {
    content: '';
    position: absolute;
    width: 250px; height: 250px;
    background: rgba(255,255,255,0.04);
    border-radius: 50%;
    bottom: -80px; left: -80px;
}
.vision-card h2 {
    font-size: 36px;
    font-weight: 900;
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
    letter-spacing: 2px;
}
.vision-card p {
    font-size: 18px;
    opacity: 0.92;
    line-height: 2;
    max-width: 750px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* ============================================
   CONTACT - ENHANCED
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
}
.contact-info h3 {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 18px;
}
.contact-info > p {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 36px;
}
.contact-items {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
    border-radius: var(--radius-md);
    transition: all 0.3s;
    border: 1px solid transparent;
}
.contact-item:hover {
    background: var(--gradient-card);
    border-color: rgba(43,111,242,0.12);
}
.contact-item-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--gradient-card);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.contact-item-icon svg, .contact-item-icon img {
    width: 22px;
    height: 22px;
    color: var(--primary);
}
.contact-item-label {
    font-size: 14px;
    color: var(--text-tertiary);
    font-weight: 500;
    margin-bottom: 4px;
}
.contact-item-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

/* Contact form */
.contact-form-wrapper {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0;
    box-shadow: none;
    position: relative;
    overflow: visible;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}
.form-group { margin-bottom: 16px; }
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 15px;
    font-family: var(--font-sans);
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all 0.3s;
    outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: rgba(43,111,242,0.4);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(43,111,242,0.08);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.btn-block { width: 100%; justify-content: center; }

.contact-qr-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.contact-qr {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}
.contact-qr::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 0;
    height: 4px;
    background: var(--gradient-primary);
    transition: width 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}
.contact-qr:hover::before {
    width: 100%;
}
.contact-qr:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.contact-qr-img {
    width: 100%;
    aspect-ratio: 1 / 1;
    margin: 0 auto 16px;
    background: #fff;
    border-radius: var(--radius-md);
    object-fit: cover;
    display: block;
    border: 1px solid var(--border);
}
.contact-qr p {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .contact-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .contact-qr-list { grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .contact-form-wrapper { padding: 20px; }
    .contact-qr { padding: 16px 8px; }
}

/* ============================================
   FOOTER - Light style
   ============================================ */
.footer {
    background: var(--bg-dark);
    padding: 60px 0 0;
    color: var(--text-secondary);
    font-size: 16px;
    border-top: 1px solid rgba(43,111,242,0.08);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(43,111,242,0.08);
}
.footer-brand p {
    color: var(--text-tertiary);
    font-size: 14px;
    margin-top: 12px;
    line-height: 1.7;
    max-width: 280px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}
.footer-logo-img {
    height: 36px;
    width: auto;
}
.footer-logo span {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}
.footer-links h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}
.footer-links a {
    display: block;
    color: var(--text-secondary);
    font-size: 14px;
    text-decoration: none;
    margin-bottom: 10px;
    transition: color 0.2s;
}
.footer-links a:hover {
    color: var(--primary);
}
.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 14px;
    color: var(--text-tertiary);
}
@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .footer { padding: 40px 0 0; }
}

/* ============================================
   MODALS
   ============================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(12px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s;
}
.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}
.modal {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    max-width: 800px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    padding: 56px;
    position: relative;
    box-shadow: var(--shadow-xl), 0 0 60px rgba(43,111,242,0.08);
    transform: translateY(30px) scale(0.95);
    transition: transform 0.5s var(--transition);
}
.modal-overlay.active .modal {
    transform: translateY(0) scale(1);
}
.modal-close {
    position: absolute;
    top: 20px; right: 20px;
    width: 44px; height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--bg-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all 0.3s;
    color: var(--text-secondary);
}
.modal-close:hover {
    background: rgba(43,111,242,0.08);
    border-color: var(--primary);
    color: var(--primary);
}
.modal h2 {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 10px;
}
.modal h3 {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 28px;
}
.modal-body {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 2;
}
.modal-body p { margin-bottom: 14px; }
.modal-body ul {
    padding-left: 24px;
    margin-bottom: 18px;
}
.modal-body ul li {
    list-style: disc;
    margin-bottom: 8px;
}

/* ============================================
   PRODUCTS PAGE SPECIFIC
   ============================================ */
.page-header {
    background: var(--gradient-hero);
    padding: 150px 0 90px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-header::before {
    content: '';
    position: absolute;
    top: -40%; right: -20%;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(43,111,242,0.1) 0%, transparent 70%);
}
.page-header::after {
    content: '';
    position: absolute;
    bottom: -30%; left: -10%;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(64,150,255,0.08) 0%, transparent 70%);
}
.page-header h1 {
    font-size: 52px;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: 18px;
    position: relative;
    z-index: 1;
    letter-spacing: -1px;
}
.page-header h1 span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.page-header p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.product-detail-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 56px;
    margin-bottom: 36px;
    transition: all 0.45s var(--transition);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.product-detail-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s var(--transition);
}
.product-detail-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-6px);
}
.product-detail-card:hover::before { transform: scaleX(1); }
.product-detail-header {
    display: flex;
    align-items: flex-start;
    gap: 28px;
    margin-bottom: 24px;
}
.product-detail-icon {
    width: 76px;
    height: 76px;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 8px 30px rgba(43,111,242,0.25);
}
.product-detail-icon svg, .product-detail-icon img {
    width: 38px;
    height: 38px;
}
.product-detail-icon img { filter: brightness(0) invert(1); }
.product-detail-info h3 {
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 8px;
}
.product-detail-info .tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: 6px;
    background: rgba(43,111,242,0.08);
    color: var(--primary);
    letter-spacing: 0.5px;
}
.product-detail-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 2;
}
.product-detail-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 28px;
}
.product-detail-feature {
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    padding: 18px;
    font-size: 13px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s;
    border: 1px solid transparent;
    color: var(--text-secondary);
}
.product-detail-feature:hover {
    background: rgba(43,111,242,0.06);
    border-color: rgba(43,111,242,0.15);
    color: var(--primary);
}

/* 产品图集 */
.product-gallery {
    margin-top: 36px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.product-gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: linear-gradient(135deg, #f0ece4 0%, #e8e4d8 50%, #f5f2ea 100%);
    cursor: pointer;
    transition: all 0.35s var(--transition);
    border: 1px solid var(--border);
}
.product-gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(43,111,242,0.08);
    border-color: rgba(43,111,242,0.25);
}
.product-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s var(--transition);
}
.product-gallery-item:hover img {
    transform: scale(1.05);
}
/* 占位状态 */
.product-gallery-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    gap: 8px;
}
.product-gallery-placeholder svg {
    width: 36px;
    height: 36px;
    opacity: 0.3;
}
.product-gallery-placeholder span {
    font-size: 13px;
}

@media (max-width: 768px) {
    .product-detail-features { grid-template-columns: 1fr 1fr; }
    .product-detail-card { padding: 36px 28px; }
}

/* ============================================
   REVEAL ANIMATIONS
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--transition), transform 0.8s var(--transition);
}
.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}
.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s var(--transition), transform 0.8s var(--transition);
}
.reveal-left.revealed {
    opacity: 1;
    transform: translateX(0);
}
.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s var(--transition), transform 0.8s var(--transition);
}
.reveal-right.revealed {
    opacity: 1;
    transform: translateX(0);
}
.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.8s var(--transition), transform 0.8s var(--transition);
}
.reveal-scale.revealed {
    opacity: 1;
    transform: scale(1);
}

/* Stagger delays */
.delay-1 { transition-delay: 0.05s; }
.delay-2 { transition-delay: 0.10s; }
.delay-3 { transition-delay: 0.15s; }
.delay-4 { transition-delay: 0.20s; }
.delay-5 { transition-delay: 0.25s; }
.delay-6 { transition-delay: 0.30s; }
.delay-7 { transition-delay: 0.35s; }
.delay-8 { transition-delay: 0.40s; }

/* ============================================
   PARALLAX BACKGROUND ELEMENTS
   ============================================ */
.parallax-orb {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}
.parallax-orb-1 {
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(43,111,242,0.06), transparent 70%);
    top: 10%; right: -5%;
}
.parallax-orb-2 {
    width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(64,150,255,0.05), transparent 70%);
    bottom: 10%; left: -5%;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.12); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(43,111,242,0.3); }

/* ============================================
   TIMELINE REVEAL ANIMATION
   ============================================ */
.timeline-hidden {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.timeline-reveal {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   PRODUCT DETAIL GRID (products.html)
   ============================================ */
.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.product-detail-grid.reverse {
    direction: inherit;
}
.product-detail-grid.reverse .product-detail-visual {
    order: 2;
}
.product-detail-grid.reverse .product-detail-info {
    order: 1;
}
.product-detail-visual {
    position: relative;
}
.product-detail-mockup {
    width: 100%;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, rgba(43,111,242,0.05), rgba(105,177,255,0.03));
    border: 1px solid rgba(43,111,242,0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 20px;
}
.product-detail-mockup svg {
    max-width: 100%;
    max-height: 100%;
}
.product-detail-info h2 {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 12px;
}
.product-badge {
    display: inline-block;
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 20px;
    background: rgba(43,111,242,0.08);
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 16px;
}
.product-feature-list {
    list-style: none;
    margin-top: 20px;
}
.product-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.6;
}
.product-feature-item strong {
    display: block;
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.product-feature-item span {
    font-size: 15px;
    color: var(--text-secondary);
}

.product-feature-item svg {
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--primary);
}

/* Dark section overrides for product detail */
.section-dark .product-detail-info h2 { color: var(--text-primary); }
.section-dark .product-detail-desc { color: var(--text-secondary); }
.section-dark .product-feature-item { color: var(--text-secondary); }
.section-dark .product-feature-item strong { color: var(--text-primary); }
.section-dark .product-feature-item span { color: var(--text-secondary); }
.section-dark .product-detail-mockup {
    background: linear-gradient(135deg, rgba(43,111,242,0.06), rgba(105,177,255,0.03));
    border-color: rgba(43,111,242,0.1);
}

@media (max-width: 768px) {
    .product-detail-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .product-detail-grid.reverse .product-detail-visual {
        order: 0;
    }
    .product-detail-grid.reverse .product-detail-info {
        order: 0;
    }
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(43,111,242,0.06), transparent 70%);
    pointer-events: none;
}
.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    padding: 60px 0;
    position: relative;
    z-index: 1;
}
.cta-content h2 {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 12px;
}
.cta-content p {
    color: var(--text-secondary);
    font-size: 17px;
    margin-bottom: 28px;
}
.cta-content .btn-gradient {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 8px;
    background: var(--gradient-primary);
    color: #fff;
    font-weight: 700;
    font-size: 15px;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}
.cta-content .btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(43,111,242,0.3);
}

/* ============================================
   SERVICES GRID (index.html)
   ============================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.service-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 28px 24px;
    transition: all 0.3s ease;
}
.service-card:hover {
    border-color: rgba(43,111,242,0.3);
    box-shadow: 0 8px 30px rgba(43,111,242,0.08);
    transform: translateY(-4px);
    background: rgba(43,111,242,0.02);
}
.service-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: rgba(43,111,242,0.08);
    color: var(--primary);
    margin-bottom: 10px;
}
.service-icon svg {
    width: 24px;
    height: 24px;
}
.service-card h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}
.service-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}
.section-dark .service-card {
    background: #FFFFFF;
    border-color: rgba(43,111,242,0.08);
}
.section-dark .service-card:hover {
    background: rgba(43,111,242,0.03);
    border-color: rgba(43,111,242,0.25);
    box-shadow: 0 8px 30px rgba(43,111,242,0.08);
}
.section-dark .service-card h4 { color: var(--text-primary); }
.section-dark .service-card p { color: var(--text-secondary); }
@media (max-width: 900px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 640px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   FAQ SECTION - GEO 问答内容
   ============================================ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 860px;
    margin: 0 auto;
}
.faq-item {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.faq-item:hover {
    border-color: rgba(43,111,242,0.25);
    box-shadow: 0 8px 30px rgba(43,111,242,0.06);
}
.faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    font-size: 19px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.5;
    margin: 0;
    padding: 24px 28px;
    cursor: pointer;
    list-style: none;
    user-select: none;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-toggle {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gradient-card);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s, background 0.3s;
}
.faq-toggle svg {
    width: 16px;
    height: 16px;
}
.faq-item[open] .faq-toggle {
    transform: rotate(180deg);
    background: var(--gradient-primary);
    color: #fff;
}
.faq-a {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 2;
    margin: 0;
    padding: 0 28px 24px;
}
@media (max-width: 768px) {
    .faq-q { font-size: 17px; padding: 20px; }
    .faq-a { padding: 0 20px 20px; font-size: 15px; }
}