:root {
    --primary-color: #0071E3;
    --primary-hover: #0077ED;
    --text-primary: #1D1D1F;
    --text-secondary: #86868B;
    --text-muted: #6E6E73;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F5F5F7;
    --bg-tertiary: #FAFAFA;
    --border-color: #E8E8ED;
    --accent-blue: #0066CC;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.47059;
    font-weight: 400;
    letter-spacing: -.022em;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-top: 75px;
}

.disclaimer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.disclaimer-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    max-width: 480px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    animation: slideUp 0.4s ease;
}

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

.disclaimer-card svg {
    width: 48px;
    height: 48px;
    fill: #FF9500;
    margin-bottom: 16px;
}

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

.disclaimer-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.57143;
    margin-bottom: 24px;
}

.disclaimer-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 32px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
}

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1024px;
    margin: 0 auto;
    padding: 0 22px;
    height: 75px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 27px;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
    line-height: 1;
}

.nav-links {
    display: flex;
    gap: 48px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 19px;
    font-weight: 500;
    letter-spacing: -0.01em;
    transition: color 0.2s ease;
}

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

.hero {
    padding: 120px 20px 80px;
    background: var(--bg-primary);
}

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

.carousel-header {
    text-align: center;
    margin-bottom: 50px;
}

.carousel-subtitle {
    font-size: 12px;
    color: var(--primary-color);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.carousel-title {
    font-size: 40px;
    font-weight: 700;
    letter-spacing: -0.015em;
    line-height: 1.1;
}

.carousel-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.carousel-container {
    overflow: hidden;
    position: relative;
}

.carousel-slide {
    flex: 0 0 33.333%;
    padding: 0 16px;
}

.chip-card {
    background: var(--bg-tertiary);
    border-radius: 28px;
    padding: 40px 24px;
    text-align: center;
    box-shadow: none;
    border: 1px solid transparent;
    transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.35s ease, border-color 0.3s ease;
}

.chip-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    border-color: var(--border-color);
}

.chip-image {
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.chip-image svg {
    width: 90px;
    height: 90px;
    fill: var(--text-primary);
    transition: transform 0.3s ease;
}

.chip-card:hover .chip-image svg {
    transform: scale(1.05);
}

.chip-badge {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 5px 14px;
    border-radius: 14px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 10px;
}

.chip-category {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.chip-title {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 8px;
}

.chip-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.64286;
    margin-bottom: 20px;
    letter-spacing: -0.01em;
}

.chip-specs {
    display: flex;
    justify-content: center;
    gap: 36px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.chip-spec {
    text-align: center;
}

.spec-value {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.spec-label {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 4px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.carousel-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 40px;
}

.carousel-prev,
.carousel-next {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.carousel-prev:hover,
.carousel-next:hover {
    background: var(--bg-secondary);
    border-color: var(--text-muted);
}

.carousel-prev svg,
.carousel-next svg {
    width: 16px;
    height: 16px;
    fill: var(--text-primary);
}

.carousel-dots {
    display: flex;
    gap: 10px;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    background: var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.2s ease;
}

.carousel-dot.active {
    background: var(--text-primary);
}

.news-section {
    padding: 80px 20px;
    background: var(--bg-primary);
}

.section-header {
    max-width: 1024px;
    margin: 0 auto 40px;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.section-title-group {
    display: flex;
    align-items: baseline;
    gap: 16px;
}

.section-subtitle {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.section-title {
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -.008em;
}

.refresh-btn {
    background: none;
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
}

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

.refresh-btn svg {
    width: 14px;
    height: 14px;
}

.refresh-btn.loading svg {
    animation: spin 1s linear infinite;
}

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

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    max-width: 1024px;
    margin: 0 auto;
}

.news-card {
    background: var(--bg-secondary);
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.news-card:hover {
    transform: translateY(-2px);
}

.news-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 20px 0;
}

.news-source {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    color: white;
}

.source-apple { background: #555555; }
.source-nvidia { background: #76B900; }
.source-amd { background: #ED1C24; }
.source-intel { background: #0071C5; }

.news-meta {
    flex: 1;
}

.news-company {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.08em;
}

.news-date {
    font-size: 10px;
    color: var(--text-muted);
}

.news-content {
    padding: 12px 20px 20px;
}

.news-title {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: .005em;
    margin-bottom: 8px;
    line-height: 1.44444;
    color: var(--text-primary);
}

.news-excerpt {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.53846;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 12px;
}

.news-tag {
    font-size: 10px;
    padding: 3px 8px;
    background: rgba(0, 113, 227, 0.1);
    color: var(--primary-color);
    border-radius: 6px;
}

.loading-card {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 20px;
}

.loading-shimmer {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 8px;
}

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

.loading-line {
    height: 16px;
    margin-bottom: 10px;
}

.loading-line.short {
    width: 60%;
}

.loading-line.medium {
    width: 80%;
}

.featured-product {
    padding: 80px 20px;
    background: var(--bg-primary);
}

.product-content {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 42% 58%;
    gap: 32px;
    align-items: flex-start;
}

.product-info {
    padding-left: 8px;
    padding-right: 0;
}

.product-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary-color);
    color: white;
    padding: 6px 16px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 16px;
}

.product-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: #fff;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.product-title {
    font-size: 44px;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.07;
    margin-bottom: 12px;
}

.product-subtitle {
    font-size: 21px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-weight: 400;
    letter-spacing: 0.01em;
    line-height: 1.47059;
}

.product-description {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.57143;
    margin-bottom: 32px;
    max-width: 480px;
}

.product-highlights {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.highlight-item {
    background: var(--bg-tertiary);
    border-radius: 18px;
    padding: 24px 20px;
    text-align: center;
    flex: 1;
    border: 1px solid var(--border-color);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.highlight-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.highlight-value {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.07;
    color: var(--text-primary);
}

.highlight-unit {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 400;
    margin-top: 2px;
}

.highlight-label {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 4px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.product-features {
    margin-bottom: 32px;
}

.product-features h4 {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 16px;
}

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

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--bg-tertiary);
    border-radius: 14px;
    border: 1px solid transparent;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.feature-icon-wrapper {
    width: 36px;
    height: 36px;
    background: var(--bg-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon {
    font-size: 20px;
}

.feature-text {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.product-details {
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
}

.product-details p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.product-details p:last-child {
    margin-bottom: 0;
}

.product-visual {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 40px;
}

.chip-3d-container {
    position: relative;
    width: 340px;
    height: 340px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chip-layer {
    position: absolute;
    border-radius: 24px;
    backdrop-filter: blur(10px);
}

.chip-layer-1 {
    width: 100%;
    height: 100%;
    background: rgba(0, 113, 227, 0.08);
    transform: rotate(-6deg) translateY(6px);
}

.chip-layer-2 {
    width: 92%;
    height: 92%;
    background: rgba(0, 113, 227, 0.12);
    transform: rotate(3deg) translateY(-3px);
}

.chip-layer-3 {
    width: 84%;
    height: 84%;
    background: white;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.12), 0 10px 30px rgba(0, 113, 227, 0.08);
    transform: rotate(-2deg);
    animation: float3 4s ease-in-out infinite;
}

@keyframes float1 {
    0%, 100% { transform: rotate(-8deg) translateY(8px); }
    50% { transform: rotate(-6deg) translateY(12px); }
}

@keyframes float2 {
    0%, 100% { transform: rotate(4deg) translateY(-4px); }
    50% { transform: rotate(6deg) translateY(-8px); }
}

@keyframes float3 {
    0%, 100% { transform: rotate(-2deg); }
    50% { transform: rotate(1deg); }
}

.chip-center {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chip-center svg {
    width: 140px;
    height: 140px;
    fill: var(--primary-color);
}

@keyframes pulse-glow {
    0%, 100% { filter: drop-shadow(0 0 20px rgba(0, 113, 227, 0.3)); }
    50% { filter: drop-shadow(0 0 40px rgba(0, 113, 227, 0.5)); }
}

.technology {
    padding: 80px 20px;
    background: var(--bg-secondary);
}

.tech-content {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 45% 55%;
    gap: 32px;
    align-items: center;
}

.tech-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    order: 2;
}

.tech-text {
    order: 1;
    padding-left: 0;
}

.tech-globe {
    width: 320px;
    height: 320px;
    position: relative;
}

.tech-orbit {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 1px solid rgba(0, 113, 227, 0.1);
    border-radius: 50%;
    animation: rotate 25s linear infinite;
}

.tech-orbit-2 {
    animation-duration: 30s;
    animation-direction: reverse;
}

.tech-orbit-3 {
    animation-duration: 20s;
}

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

.tech-node {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 12px rgba(0, 113, 227, 0.4);
}

.tech-node:nth-child(2) { top: 12%; left: 50%; transform: translateX(-50%); }
.tech-node:nth-child(3) { top: 50%; right: 12%; transform: translateY(-50%); }
.tech-node:nth-child(4) { bottom: 12%; left: 50%; transform: translateX(-50%); }
.tech-node:nth-child(5) { top: 50%; left: 12%; transform: translateY(-50%); }
.tech-node:nth-child(6) { top: 28%; right: 28%; }
.tech-node:nth-child(7) { bottom: 28%; right: 28%; }
.tech-node:nth-child(8) { bottom: 28%; left: 28%; }
.tech-node:nth-child(9) { top: 28%; left: 28%; }

.tech-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background: rgba(0, 113, 227, 0.06);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-center svg {
    width: 80px;
    height: 80px;
    fill: var(--primary-color);
}

.tech-text {
    padding-left: 16px;
}

.tech-section-title {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.tech-text h3 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.015em;
    margin-bottom: 16px;
    line-height: 1.1;
}

.tech-text p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.64286;
    margin-bottom: 14px;
}

.tech-text p:last-of-type {
    margin-bottom: 24px;
}

.tech-list {
    list-style: none;
    padding-left: 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.tech-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    background: var(--bg-primary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.tech-list li:hover {
    background: var(--bg-tertiary);
    border-color: rgba(0, 113, 227, 0.3);
}

.tech-list li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    flex-shrink: 0;
}

.tech-list li span {
    font-size: 13px;
    color: var(--text-primary);
    font-weight: 400;
    line-height: 1.46154;
}

footer {
    background: var(--bg-secondary);
    padding: 40px 20px 20px;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    max-width: 1024px;
    margin: 0 auto;
}

.footer-top {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border-color);
}

.footer-logo {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 12px;
}

.footer-about {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.66667;
}

.footer-heading {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.footer-links {
    list-style: none;
    padding-left: 0;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 12px;
    line-height: 1.66667;
    transition: color 0.2s ease;
}

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

.footer-bottom {
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.copyright {
    font-size: 11px;
    color: var(--text-muted);
}

.footer-beian {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 11px;
    color: var(--text-muted);
}

.footer-beian a {
    color: inherit;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
}

.footer-beian img {
    width: 14px;
    height: 14px;
}

@media (max-width: 768px) {
    .carousel-slide {
        flex: 0 0 50%;
    }

    .carousel-title {
        font-size: 24px;
    }

    .chip-specs {
        gap: 20px;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

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

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

    .product-info {
        padding-right: 0;
    }

    .product-title {
        font-size: 32px;
    }

    .product-highlights {
        flex-direction: column;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .chip-3d-container {
        width: 280px;
        height: 280px;
    }

    .chip-center svg {
        width: 120px;
        height: 120px;
    }

    .tech-globe {
        width: 300px;
        height: 300px;
    }

    .tech-text {
        padding-left: 0;
    }

    .tech-text h3 {
        font-size: 24px;
    }

    .tech-list {
        grid-template-columns: 1fr;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 24px;
    }

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

    .footer-beian {
        flex-direction: column;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .carousel-slide {
        flex: 0 0 100%;
    }

    .nav-links {
        display: none;
    }

    .disclaimer-card {
        margin: 20px;
        padding: 24px;
    }
}