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

:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #0f1420;
    --bg-card: #131825;
    --bg-card-hover: #181d2e;
    --text-primary: #e8eaf0;
    --text-secondary: #8b92a8;
    --text-muted: #5a6178;
    --accent: #3b82f6;
    --accent-dim: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.15);
    --accent-secondary: #06b6d4;
    --accent-purple: #8b5cf6;
    --border: rgba(255, 255, 255, 0.06);
    --border-light: rgba(255, 255, 255, 0.1);
    --gradient-1: linear-gradient(135deg, #3b82f6, #06b6d4);
    --gradient-2: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --gradient-3: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #8b5cf6 100%);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --font-cn: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-en: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-cn);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

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

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
}

.logo-icon {
    font-size: 1.5rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text {
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
    padding: 4px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--accent);
    transition: var(--transition);
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

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

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

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 120px 24px 80px;
}

#particleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

/* Hero 光晕球 */
.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}

.hero-orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
    top: -10%;
    left: -5%;
    animation: orbFloat1 20s ease-in-out infinite;
}

.hero-orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
    bottom: -5%;
    right: -5%;
    animation: orbFloat2 25s ease-in-out infinite;
}

.hero-orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
    top: 30%;
    right: 20%;
    animation: orbFloat3 18s ease-in-out infinite;
}

@keyframes orbFloat1 {
    0%, 100% { transform: translate(0, 0); }
    33% { transform: translate(30px, -20px); }
    66% { transform: translate(-20px, 30px); }
}

@keyframes orbFloat2 {
    0%, 100% { transform: translate(0, 0); }
    33% { transform: translate(-25px, 15px); }
    66% { transform: translate(20px, -25px); }
}

@keyframes orbFloat3 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-30px, -20px); }
}

/* Hero 网格背景 */
.hero-grid-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.4) 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.4) 0%, transparent 70%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
    max-width: 1100px;
    width: 100%;
}

.hero-content {
    position: relative;
    text-align: left;
    flex: 1;
    max-width: 560px;
}

.hero-title {
    font-size: clamp(2.2rem, 5vw, 3.6rem);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-title em {
    font-style: normal;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.title-line { display: block; }

.hero-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 480px;
    margin-bottom: 36px;
    line-height: 1.8;
}

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

/* Hero 右侧 SVG 图形 */
.hero-visual {
    flex-shrink: 0;
    width: 360px;
    height: 360px;
    position: relative;
}

.hero-svg {
    width: 100%;
    height: 100%;
    animation: heroSvgFloat 8s ease-in-out infinite;
}

@keyframes heroSvgFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: var(--font-cn);
}

.btn-primary {
    background: var(--gradient-1);
    color: #fff;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 30px rgba(59, 130, 246, 0.45);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 2px;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ===== Section Divider ===== */
.section-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    gap: 12px;
}

.divider-line {
    width: 80px;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--accent), transparent);
    opacity: 0.3;
}

.divider-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.5;
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.4);
}

/* ===== Sections Common ===== */
.section {
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    font-family: var(--font-en);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 4px;
    color: var(--accent);
    display: block;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* ===== Section Background Pattern ===== */
.section-bg-pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 1px 1px, rgba(59, 130, 246, 0.04) 1px, transparent 0);
    background-size: 40px 40px;
    mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.5) 0%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.5) 0%, transparent 80%);
    pointer-events: none;
}

/* ===== Philosophy ===== */
.philosophy-content {
    max-width: 900px;
    margin: 0 auto;
}

.philosophy-statement {
    text-align: center;
    margin-bottom: 64px;
    position: relative;
}

.quote-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.15);
    color: var(--accent);
    margin-bottom: 24px;
}

.philosophy-statement blockquote {
    font-size: 1.25rem;
    color: var(--text-primary);
    line-height: 2;
    font-weight: 400;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    padding: 0 20px;
}

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

.belief-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: var(--transition);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.belief-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-1);
    opacity: 0;
    transition: var(--transition);
}

.belief-card:hover {
    border-color: rgba(59, 130, 246, 0.2);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

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

.belief-icon {
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: var(--radius);
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.12);
}

.belief-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.belief-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== Domains / Business Cards ===== */
.domains {
    background: var(--bg-secondary);
    position: relative;
}

/* Floating shapes */
.floating-shapes {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: rgba(59, 130, 246, 0.06);
    top: 10%;
    left: -5%;
    animation: shapeFloat 15s ease-in-out infinite;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: rgba(6, 182, 212, 0.05);
    bottom: 10%;
    right: 5%;
    animation: shapeFloat 20s ease-in-out infinite reverse;
}

.shape-3 {
    width: 250px;
    height: 250px;
    background: rgba(139, 92, 246, 0.04);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: shapeFloat 18s ease-in-out infinite;
}

@keyframes shapeFloat {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(20px, -15px); }
    50% { transform: translate(-10px, 20px); }
    75% { transform: translate(15px, 10px); }
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.business-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    transition: var(--transition);
    overflow: hidden;
}

.business-card::after {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
    transition: var(--transition);
    pointer-events: none;
}

.business-card:hover {
    border-color: rgba(59, 130, 246, 0.25);
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35), 0 0 40px rgba(59, 130, 246, 0.08);
}

.business-card:hover::after {
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
}

.card-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-3);
    opacity: 0;
    transition: var(--transition);
}

.business-card:hover .card-glow { opacity: 1; }

.card-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(6, 182, 212, 0.08));
    border: 1px solid rgba(59, 130, 246, 0.15);
    color: var(--accent);
    margin-bottom: 24px;
    transition: var(--transition);
}

.business-card:hover .card-icon {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(6, 182, 212, 0.15));
    box-shadow: 0 0 24px rgba(59, 130, 246, 0.2);
}

.card-icon svg {
    width: 28px;
    height: 28px;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.card-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

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

.card-tags li {
    font-size: 0.78rem;
    padding: 5px 14px;
    border-radius: 20px;
    background: rgba(59, 130, 246, 0.06);
    color: var(--accent);
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: var(--transition);
}

.business-card:hover .card-tags li {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.2);
}

/* ===== Technology ===== */
.technology {
    position: relative;
}

.tech-bg-decoration {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    pointer-events: none;
    opacity: 0.8;
}

.tech-bg-svg {
    width: 100%;
    height: 100%;
    animation: techBgRotate 60s linear infinite;
}

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

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    position: relative;
    z-index: 1;
}

.tech-card {
    position: relative;
    background: rgba(19, 24, 37, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    transition: var(--transition);
    overflow: hidden;
}

.tech-card::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 0;
    background: linear-gradient(to top, rgba(59, 130, 246, 0.03), transparent);
    transition: height 0.5s ease;
    pointer-events: none;
}

.tech-card:hover::before {
    height: 100%;
}

.tech-card:hover {
    border-color: rgba(59, 130, 246, 0.2);
    background: rgba(24, 29, 46, 0.9);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.tech-number {
    font-family: var(--font-en);
    font-size: 3.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.25), rgba(6, 182, 212, 0.12));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 16px;
    line-height: 1;
    position: relative;
    z-index: 1;
}

.tech-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.tech-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

.tech-line {
    width: 40px;
    height: 2px;
    background: var(--gradient-1);
    margin-top: 24px;
    border-radius: 2px;
    transition: var(--transition);
    position: relative;
    z-index: 1;
}

.tech-card:hover .tech-line { width: 80px; }

/* ===== Vision ===== */
.vision {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.vision-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.vision-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
}

.vision-orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    top: -20%;
    right: -10%;
    animation: visionOrb1 12s ease-in-out infinite;
}

.vision-orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
    bottom: -20%;
    left: -10%;
    animation: visionOrb2 15s ease-in-out infinite;
}

@keyframes visionOrb1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-30px, 20px) scale(1.1); }
}

@keyframes visionOrb2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(20px, -30px) scale(1.05); }
}

.vision-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.02) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.3) 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.3) 0%, transparent 70%);
}

.vision-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    padding: 40px 0;
}

.vision-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--text-primary) 0%, rgba(59, 130, 246, 0.8) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.vision-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 40px;
}

.vision-values {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.vision-tag {
    padding: 10px 24px;
    border-radius: 24px;
    background: rgba(59, 130, 246, 0.06);
    border: 1px solid rgba(59, 130, 246, 0.12);
    font-size: 0.9rem;
    color: var(--accent);
    transition: var(--transition);
}

.vision-tag:hover {
    background: rgba(59, 130, 246, 0.12);
    border-color: rgba(59, 130, 246, 0.25);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.15);
    transform: translateY(-2px);
}

/* ===== Footer ===== */
.footer {
    border-top: 1px solid var(--border);
    padding: 64px 0 32px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 48px;
}

.footer-brand { max-width: 300px; }

.footer-brand .logo-icon,
.footer-brand .logo-text {
    display: inline;
    vertical-align: middle;
}

.footer-slogan {
    margin-top: 12px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 64px;
}

.footer-col h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.footer-col a {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    padding: 4px 0;
    transition: var(--transition);
}

.footer-col a:hover { color: var(--accent); }

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-bottom a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-bottom a:hover {
    color: rgba(255,255,255,0.6);
}

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-inner {
        flex-direction: column;
        text-align: center;
    }

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

    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }

    .hero-visual {
        width: 280px;
        height: 280px;
    }

    .business-grid {
        grid-template-columns: 1fr;
        max-width: 560px;
        margin: 0 auto;
    }

    .tech-grid {
        grid-template-columns: 1fr;
        max-width: 560px;
        margin: 0 auto;
    }

    .belief-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 14, 23, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
    }

    .nav-links.active { display: flex; }
    .nav-toggle { display: flex; }

    .hero-visual {
        width: 220px;
        height: 220px;
    }

    .footer-top {
        flex-direction: column;
        gap: 40px;
    }

    .footer-links {
        gap: 40px;
        flex-wrap: wrap;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn { width: 200px; }
}

@media (max-width: 480px) {
    .section { padding: 80px 0; }
    .hero { padding: 100px 16px 60px; }
    .hero-title { font-size: 1.8rem; }
    .hero-subtitle { font-size: 0.95rem; }
    .business-card { padding: 28px 24px; }
    .tech-card { padding: 28px 24px; }

    .hero-visual {
        width: 180px;
        height: 180px;
    }

    .vision-values { gap: 10px; }
    .vision-tag { padding: 8px 18px; font-size: 0.82rem; }
}