/* Apple Style Website CSS */

/* Tailwind CSS CDN */
@import url('https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css');

/* CSS Variables */
:root {
    --color-primary: #444444;
    --color-primary-dark: #c00000;
    --color-primary-red: #c00000;
    --color-primary-red2: #ffa1a1;
    --color-text: #1d1d1f;
    --color-text-white: #ffffff;
    --color-text-secondary: #86868b;
    --color-background: #ffffff;
    --color-background-alt: #f5f5f7;
    --color-background-dark: #1d1d1f;
    --color-border: #d2d2d7;
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
    --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 40px rgba(0, 0, 0, 0.12);
}

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

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--color-primary) var(--color-background-alt);
}

body {
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
    color: var(--color-text);
    background: var(--color-background);
    line-height: 1.6;
    overflow-x: hidden;
}

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

::-webkit-scrollbar-track {
    background: var(--color-background-alt);
}

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

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: #ffffff;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: var(--transition-smooth);
    padding: 0 20px;
    box-shadow: 0 1px 0px rgba(0, 0, 0, 0.1);
}

.navbar.scrolled {
    background: #ffffff;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 48px;
}

.nav-logo {
    color: #333333;
    font-size: 20px;
    transition: var(--transition-smooth);
    position: absolute;
    left: 15px;
    display: flex;
    align-items: center;
}

.navbar.scrolled .nav-logo {
    color: #333333;
}

.nav-logo img {
    height: 32px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 10px;
}

.nav-link {
    color: #666666;
    text-decoration: none;
    font-size: 12px;
    font-weight: 400;
    transition: var(--transition-smooth);
    position: relative;
    height: 48px;
    line-height: 48px;
    padding: 0 15px;
}

.navbar.scrolled .nav-link {
    color: #666666;
}

.nav-link:hover {
    background: #c00000;
    color: #ffffff;
}

.navbar.scrolled .nav-link:hover {
    background: #c00000;
    color: #ffffff;
}

.nav-link.active {
    background: #c00000 !important;
    color: #ffffff !important;
}

/* Submenu - 苹果官网全宽下拉风格 */
.nav-item-has-children {
    position: static;
}

.nav-item-has-children > .submenu {
    z-index: 1000;
    height: auto;
}

.nav-item-has-children > .nav-link::after {
    content: '';
    display: inline-block;
    margin-left: 4px;
    border: 4px solid transparent;
    border-top-color: currentColor;
    transform: translateY(2px);
}

.nav-item-has-children .submenu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    list-style: none;
    min-width: auto;
    transition: background 0.3s ease, opacity 0.3s ease;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    display: flex;
    justify-content: center;
    gap: 60px;
    padding: 30px calc(50% - 480px);
    box-sizing: border-box;
}

.nav-item-has-children:hover > .submenu,
.nav-item-has-children .submenu:hover {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.nav-item-has-children .submenu ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.nav-item-has-children .submenu li a {
    display: block;
    padding: 8px 0;
    color: #1d1d1f;
    text-decoration: none;
    font-size: 12px;
    font-weight: 400;
    white-space: nowrap;
    transition: color 0.3s ease, opacity 0.2s ease;
    opacity: 0.8;
}

.nav-item-has-children .submenu li a:hover {
    opacity: 1;
}

/* 二级菜单分类标题 */
.nav-item-has-children .submenu li.submenu-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary-red);
    padding: 8px 0 12px 0;
    white-space: nowrap;
    letter-spacing: 0.5px;
}

/* Mobile Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    background: #ffffff;
    transition: var(--transition-smooth);
}

.navbar.scrolled .nav-toggle span {
    background: var(--color-text);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 48px;
    left: 0;
    right: 0;
    background: #ffffff;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 20px;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
    z-index: 999;
}

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

.mobile-nav-menu {
    list-style: none;
}

.mobile-nav-link {
    display: block;
    color: #666666;
    text-decoration: none;
    font-size: 20px;
    padding: 15px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    transition: var(--transition-smooth);
}

.mobile-nav-link:hover {
    background: #c00000;
    color: #ffffff;
}

.mobile-nav-link.active {
    background: #c00000 !important;
    color: #ffffff !important;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    background: linear-gradient(135deg, #000000 0%,#151532 40%, #383856 50%,#151532 60%, #000000 100%);
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 20px;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-size: 80px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 16px;
    letter-spacing: -2px;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 24px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    font-weight: 300;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 17px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 980px;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--color-primary);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: scale(1.02);
    box-shadow: 0 4px 20px rgba(0, 113, 227, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
}

.btn-outline {
    background: transparent;
    color: #111111;
    border: 1px solid #111111;
}

.btn-outline:hover {
    background: #111111;
    color: #ffffff;
}

/* Hero Scroll Indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: #ffffff;
    font-size: 12px;
    animation: bounce 2s infinite;
}

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

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid #ffffff;
    border-bottom: 2px solid #ffffff;
    transform: rotate(45deg);
}

/* Section Styles */
.section {
    padding: 120px 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 56px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.section-subtitle {
    font-size: 21px;
    color: var(--color-text-secondary);
}

/* Products Section */
.products-section {
    background: var(--color-background-alt);
}

.product-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background: #ffffff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition-smooth);
    cursor: pointer;
    opacity: 0;
    transform: translateY(30px);
}

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

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

.product-image {
    width: 100%;
    height: 280px;
    overflow: hidden;
    background: var(--color-background-alt);
}

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

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-info {
    padding: 24px;
    text-align: center;
}

.product-info h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.product-info p {
    color: var(--color-text-secondary);
    font-size: 12px;
    margin-bottom: 16px;
}

.product-price {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-primary);
}

/* Innovation Section */
.innovation-section {
    background: #1a1a2e;
    color: #ffffff;
}

.innovation-showcase {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.innovation-content{
    margin-left: 100px;
}

.innovation-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--color-primary);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
}

.innovation-title {
    font-size: 64px;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -2px;
}

.innovation-desc {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 48px;
    line-height: 1.6;
}

.innovation-features {
    display: flex;
    gap: 40px;
}

.innovation-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-hover);
}

.innovation-image img {
    width: 90%;
    height: auto;
    display: block;
    margin-left: 10%;
}


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

.feature-number {
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
}

.feature-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.innovation-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.chip-visual {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
    border-radius: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.chip-inner {
    width: 180px;
    height: 180px;
    background: linear-gradient(135deg, #3a3a3a 0%, #2a2a2a 100%);
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chip-core {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary) 0%, #5856d6 100%);
    border-radius: 15px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

/* Services Section */
.services-section {
    background: var(--color-background);
}

.services-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--color-background-alt);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition-smooth);
    opacity: 0;
    transform: translateY(30px);
}

.service-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    background: #ffffff;
}

.service-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 24px;
    color: var(--color-primary);
}

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

.service-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
}

.service-card p {
    color: var(--color-text-secondary);
    font-size: 14px;
    margin-bottom: 20px;
}

.service-price {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-primary);
}

/* Fullscreen Section */
.fullscreen-section {
    height: 80vh;
    min-height: 500px;
    background: linear-gradient(135deg, #1d1d1f 0%, #2d2d30 50%, #1d1d1f 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.fullscreen-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="0.5"/></svg>');
    background-size: 200px 200px;
    animation: rotate 60s linear infinite;
}

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

.fullscreen-content {
    position: relative;
    z-index: 2;
}

.fullscreen-content h2 {
    font-size: 72px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 20px;
    letter-spacing: -2px;
}

.fullscreen-content p {
    font-size: 24px;
    color: rgba(255, 255, 255, 0.6);
}

/* About Section */
.about-section {
    background: #ffffff;
    color: #444444;
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content h2 {
    font-size: 48px;
    font-weight: 600;
    margin-bottom: 24px;
    color: #444444;
}

.about-content p {
    font-size: 18px;
    color: #444444;
    line-height: 1.8;
    margin-bottom: 40px;
}

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

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

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: #0071e3;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.about-image {
    position: relative;
    padding: 20px;
    background: #f5f5f7;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0);
    transition: transform 0.3s ease, background 0.3s ease;
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    opacity: 0.9;
    border-radius: 20px;
}

.clients-section-index{
    background: #ffffff;
    text-align: center;
}

/* Contact Section */
.contact-section {
    background: #f5f5f7;
    text-align: center;
}

.contact-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.contact-content h2 {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 100px;
}

.contact-content > p {
    font-size: 16px;
    line-height: 38px;
    color: var(--color-text-secondary);
    margin-bottom: 40px;
}

.contact-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: var(--color-background-alt);
    padding: 60px 20px 30px;
    border-top: 1px solid var(--color-border);
}

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

.footer-top {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    padding-bottom: 40px;
}

.footer-column h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--color-text);
}

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

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

.footer-column p {
    color: var(--color-text-secondary);
    font-size: 12px;
}


.footer-column a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 12px;
    transition: var(--transition-smooth);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-copyright {
    font-size: 12px;
    color: var(--color-text-secondary);
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 12px;
    transition: var(--transition-smooth);
}

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

/* Scroll Progress */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), #5856d6);
    width: 0%;
    z-index: 1001;
    transition: width 0.1s ease-out;
}

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

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

.fade-in.hidden {
    opacity: 0;
    transform: translateY(30px);
}

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

.service-card.hidden {
    opacity: 0;
    transform: translateY(30px);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .innovation-showcase {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .innovation-features {
        justify-content: center;
    }
    
    .about-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .innovation-title {
        font-size: 42px;
    }
    
    .fullscreen-content h2 {
        font-size: 42px;
    }
    
    .feature-item {
        min-width: 80px;
    }
    
    .feature-number {
        font-size: 32px;
    }
    
    .about-content h2 {
        font-size: 36px;
    }
    
    .about-stats {
        justify-content: center;
    }
    
    .footer-top {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 36px;
    }
    
    .section {
        padding: 80px 20px;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .innovation-features {
        flex-direction: column;
        gap: 24px;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        flex-direction: column;
        gap: 24px;
    }
}

@media (min-width: 1472px) {
    .container {
        max-width: 1472px;
    }
}

@media (min-width: 1680px) {
    .container {
        max-width: 1680px;
    }
}

.container {
    padding-left: 0;
    padding-right: 0;
}

/* 滚动动画 - 公共样式 (fade-section) */
.fade-section {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Hero 区域公用样式 - 粒子效果 */
.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: floatParticle linear infinite;
}

@keyframes floatParticle {
    0% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 0.8;
    }
    90% {
        opacity: 0.8;
    }
    100% {
        transform: translateY(-100vh) translateX(var(--tx, 100px));
        opacity: 0;
    }
}

/* Hero 徽章 */
.hero-badge {
    display: inline-block;
    padding: 12px 32px;
    background: #ffffff;
    border: 1px solid rgba(192, 0, 0, 0.25);
    border-radius: 40px;
    font-size: 12px;
    font-weight: 300;
    color: #c00000;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 2;
    animation: badgePulse 3s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(192, 0, 0, 0.2);
        transform: translateY(0);
    }
    50% {
        box-shadow: 0 8px 30px rgba(192, 0, 0, 0.35);
        transform: translateY(-5px);
    }
}

/* Hero 滚动提示 */
.scroll-hint {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
    z-index: 2;
    animation: scrollHint 2s ease-in-out infinite;
}

.scroll-hint .arrow {
    width: 16px;
    height: 16px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.6);
    border-right: 2px solid rgba(255, 255, 255, 0.6);
    transform: rotate(45deg);
    animation: arrowBounce 1.5s ease-in-out infinite;
}

@keyframes scrollHint {
    0%, 100% {
        opacity: 0.8;
        transform: translateX(-50%) translateY(0);
    }
    50% {
        opacity: 1;
        transform: translateX(-50%) translateY(10px);
    }
}

@keyframes arrowBounce {
    0%, 100% {
        transform: rotate(45deg) translateY(0);
    }
    50% {
        transform: rotate(45deg) translateY(5px);
    }
}

/* Hero 分割线 */
.hero-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(204, 204, 204, 0.3) 20%, rgba(160, 160, 160, 0.3) 80%, transparent 100%);
    width: 80%;
    max-width: 800px;
    margin: 0 auto;
}