:root {
    --bg: #060606;
    --bg-elevated: rgba(255, 255, 255, 0.04);
    --panel: rgba(255, 255, 255, 0.06);
    --panel-hover: rgba(255, 255, 255, 0.12);
    --text: #f5f5f5;
    --text-muted: rgba(245, 245, 245, 0.7);
    --accent: #ffffff;
    --grid-line: rgba(255, 255, 255, 0.05);
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: radial-gradient(circle at top right, rgba(255, 255, 255, 0.08), transparent 55%),
                radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.06), transparent 45%),
                var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: linear-gradient(var(--grid-line) 1px, transparent 1px),
                      linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 120px 120px;
    opacity: 0.3;
    pointer-events: none;
    mix-blend-mode: lighten;
    z-index: -1;
}

.noise-overlay {
    position: fixed;
    inset: 0;
    background-image: url('data:image/svg+xml,%3Csvg viewBox="0 0 120 120" xmlns="http://www.w3.org/2000/svg" fill="none"%3E%3Cfilter id="n" x="0" y="0" width="100%25" height="100%25"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="1.2" numOctaves="3" stitchTiles="stitch"/%3E%3C/ filter%3E%3Crect width="120" height="120" filter="url(%23n)" opacity="0.08"/%3E%3C/svg%3E');
    opacity: 0.4;
    mix-blend-mode: soft-light;
    pointer-events: none;
    z-index: 0;
}

.container {
    width: min(1200px, 92vw);
    margin: 0 auto;
}

section {
    position: relative;
    padding: 120px 0;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 100;
    backdrop-filter: blur(16px);
    background: rgba(6, 6, 6, 0.85);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    color: var(--accent);
    text-decoration: none;
    padding: 6px 0;
}

.brand:hover,
.brand:focus {
    color: var(--accent);
}

.brand:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.4);
    outline-offset: 6px;
    border-radius: 14px;
}

.brand-name {
    font-weight: 600;
    letter-spacing: 0.08em;
    font-size: 1.05rem;
    line-height: 1;
}

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.brand-tagline {
    font-size: 0.7rem;
    letter-spacing: 0.28em;
    color: rgba(255, 255, 255, 0.55);
    text-transform: uppercase;
    line-height: 1;
}

body[data-language="zh"] .brand-tagline {
    text-transform: none;
    letter-spacing: 0.12em;
}

.brand-mark {
    display: inline-flex;
    width: 56px;
    height: 56px;
    align-items: center;
    justify-content: center;
}

.brand-mark svg {
    width: 100%;
    height: 100%;
    display: block;
}

.brand-mark--compact {
    width: 48px;
    height: 48px;
}

.footer-brand-text {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 24px;
}

.language-switcher {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding-left: 24px;
    border-left: 1px solid rgba(255, 255, 255, 0.08);
}

.lang-btn {
    border: 0;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.78rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    padding: 6px 12px;
    border-radius: 999px;
    cursor: pointer;
    transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.lang-btn:hover,
.lang-btn:focus {
    color: var(--accent);
    outline: none;
}

.lang-btn:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.4);
    outline-offset: 2px;
}

.lang-btn.is-active {
    background: rgba(255, 255, 255, 0.85);
    color: var(--bg);
    box-shadow: 0 12px 30px rgba(255, 255, 255, 0.16);
}

.lang-btn.is-active:hover,
.lang-btn.is-active:focus {
    color: var(--bg);
}
.site-nav {
    display: flex;
    align-items: center;
    gap: 28px;
    font-size: 0.95rem;
}

.site-nav a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s ease;
    position: relative;
}

.site-nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.25s ease;
    opacity: 0.6;
}

.site-nav a:not(.nav-cta):hover,
.site-nav a:not(.nav-cta):focus {
    color: var(--accent);
}

.site-nav a:not(.nav-cta):hover::after,
.site-nav a:not(.nav-cta):focus::after {
    transform: scaleX(1);
}

.nav-cta {
    padding: 10px 18px;
    color: var(--text);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
    transition: background 0.2s ease, color 0.2s ease;
}

.nav-cta:hover,
.nav-cta:focus {
    background: var(--accent);
    color: var(--bg);
}

.hero {
    padding-top: 180px;
}

.hero .container {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 80px;
    align-items: center;
}

.hero-text .eyebrow {
    font-size: 0.9rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.hero-text h1 {
    font-size: clamp(2.8rem, 4vw, 4.2rem);
    line-height: 1.1;
    margin: 24px 0;
}

.hero-text span {
    color: var(--accent);
    text-shadow: 0 0 12px rgba(255, 255, 255, 0.4);
}

.lead {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 540px;
}

.hero-actions {
    margin-top: 38px;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 999px;
    border: 1px solid transparent;
    text-decoration: none;
    font-weight: 600;
    letter-spacing: 0.06em;
    transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.btn-primary {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.65));
    color: var(--bg);
}

.btn-primary:hover,
.btn-primary:focus {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(255, 255, 255, 0.2);
}

.btn-ghost {
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--text);
    background: rgba(255, 255, 255, 0.04);
}

.btn-ghost:hover,
.btn-ghost:focus {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.6);
}

.hero-visual {
    position: relative;
    min-height: 420px;
}

.hero-card {
    position: relative;
    backdrop-filter: blur(26px);
    background: var(--panel);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 24px;
    padding: 36px;
    box-shadow: var(--shadow);
    max-width: 360px;
    z-index: 2;
    animation: float 8s ease-in-out infinite;
}

.hero-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.hero-card ul {
    margin-top: 18px;
    display: grid;
    gap: 10px;
    list-style: none;
    color: var(--text-muted);
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(0);
    background: radial-gradient(circle, rgba(255, 255, 255, 0.5), transparent 60%);
    opacity: 0.45;
    animation: pulse 12s ease-in-out infinite;
}

.orb-large {
    width: 360px;
    height: 360px;
    top: 60px;
    right: -40px;
}

.orb-medium {
    width: 220px;
    height: 220px;
    bottom: -40px;
    left: 40px;
    animation-delay: -3s;
}

.metrics {
    padding: 80px 0;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 40px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    padding: 40px 50px;
}

.metric {
    text-align: center;
}

.metric-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
}

.metric-label {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 8px;
}

.section-heading {
    max-width: 640px;
}

.section-heading .eyebrow {
    font-size: 0.85rem;
    letter-spacing: 0.3em;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
}

.section-heading h2 {
    margin: 18px 0 16px;
    font-size: clamp(2rem, 3.6vw, 3rem);
}

.section-heading p {
    color: var(--text-muted);
}

.pillars {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 28px;
    margin-top: 60px;
}

.pillar-card {
    padding: 32px;
    border-radius: 20px;
    background: var(--panel);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: background 0.25s ease, transform 0.25s ease;
}

.pillar-card:hover {
    transform: translateY(-6px);
    background: var(--panel-hover);
}

.solution-grid {
    margin-top: 60px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
}

.solution-card {
    display: flex;
    flex-direction: column;
    gap: 18px;
    padding: 36px;
    border-radius: 24px;
    background: linear-gradient(160deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0));
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(18px);
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.solution-card::after {
    content: '';
    position: absolute;
    inset: -20%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.18), transparent 60%);
    opacity: 0;
    transition: opacity 0.35s ease;
    z-index: -1;
}

.solution-card:hover::after {
    opacity: 1;
}

.solution-card header {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tag {
    align-self: flex-start;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.solution-card p,
.solution-card ul {
    color: var(--text-muted);
}

.solution-card ul {
    list-style: none;
    display: grid;
    gap: 10px;
    padding-left: 0;
}

.solution-card ul li::before {
    content: '—';
    margin-right: 12px;
    color: rgba(255, 255, 255, 0.5);
}

.proof-grid {
    display: grid;
    gap: 32px;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    margin-top: 60px;
}

.proof-card {
    padding: 32px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.proof-card .result {
    display: inline-block;
    margin-top: 24px;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.9);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 28px;
    margin-top: 60px;
}

.step {
    position: relative;
    padding: 40px 32px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
}

.step::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.step:hover::after {
    opacity: 1;
}

.step-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    font-weight: 600;
    margin-bottom: 20px;
}

.step h3 {
    margin-bottom: 12px;
    font-size: 1.2rem;
}

.cta {
    padding: 120px 0 140px;
}

.cta .container {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 60px;
    align-items: start;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 32px;
    padding: 64px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow);
}

.cta-content h2 {
    font-size: clamp(2.2rem, 3vw, 3rem);
    margin-bottom: 18px;
}

.cta-content p {
    color: var(--text-muted);
    max-width: 460px;
}

.cta-form {
    display: grid;
    gap: 20px;
}

.cta-form label {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.cta-form input,
.cta-form textarea {
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 14px;
    padding: 14px 18px;
    color: var(--text);
    font-size: 1rem;
    transition: border 0.2s ease, box-shadow 0.2s ease;
}

.cta-form input:focus,
.cta-form textarea:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.1);
}

.site-footer {
    padding: 80px 0 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.95));
    backdrop-filter: blur(20px);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 2fr;
    gap: 80px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-brand-text {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-brand-text strong {
    font-size: 1.3rem;
    letter-spacing: 0.06em;
}

.footer-brand-text p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
    max-width: 320px;
}

.footer-social {
    display: flex;
    gap: 16px;
    margin-top: 8px;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text-muted);
    transition: all 0.25s ease;
}

.footer-social a:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--accent);
    transform: translateY(-3px);
}

.footer-nav {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 48px;
}

.footer-nav-group h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 18px;
    letter-spacing: 0.05em;
    color: var(--accent);
}

.footer-nav-group ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-nav-group ul li a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
    display: inline-block;
}

.footer-nav-group ul li a:hover {
    color: var(--accent);
}

.footer-contact-list li {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.footer-contact-list li span {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-contact-list li a {
    font-size: 0.9rem;
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
    color: var(--text-muted);
    font-size: 0.85rem;
}

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

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.footer-tagline {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.85rem;
    font-style: italic;
    letter-spacing: 0.05em;
}

[data-animate] {
    opacity: 0;
    transform: translateY(60px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-animate].is-visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-14px);
    }
    100% {
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.4;
    }
    50% {
        transform: scale(1.12);
        opacity: 0.6;
    }
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.app-card {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 40px;
    border-radius: 28px;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
    isolation: isolate;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.app-card::before {
    content: '';
    position: absolute;
    inset: -30%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15), transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
}

.app-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 28px 60px rgba(0, 0, 0, 0.35);
}

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

.app-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: background 0.3s ease, transform 0.3s ease;
}

.app-card:hover .app-icon {
    background: rgba(255, 255, 255, 0.12);
    transform: scale(1.05);
}

.app-icon svg {
    width: 60%;
    height: 60%;
    color: var(--accent);
}

.app-card header {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.app-card h3 {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.app-tagline {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.65);
    letter-spacing: 0.05em;
}

.app-card > p {
    color: var(--text-muted);
    line-height: 1.7;
    flex-grow: 1;
}

.app-features {
    list-style: none;
    display: grid;
    gap: 12px;
    padding: 20px 0;
    margin: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.app-features li {
    color: var(--text-muted);
    font-size: 0.95rem;
    padding-left: 24px;
    position: relative;
}

.app-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 600;
}

.btn-outline {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: var(--text);
    padding: 12px 28px;
}

.btn-outline:hover,
.btn-outline:focus {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-left: 12px;
    border-radius: 8px;
    transition: background 0.2s ease;
}

.mobile-menu-toggle:hover {
    background: rgba(255, 255, 255, 0.08);
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger-line:not(:last-child) {
    margin-bottom: 5px;
}

/* Mobile Sidebar */
.mobile-sidebar {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 85vw);
    max-width: 320px;
    height: 100vh;
    background: linear-gradient(180deg, rgba(10, 10, 10, 0.98), rgba(5, 5, 5, 0.98));
    backdrop-filter: blur(24px);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
}

.mobile-sidebar.is-open {
    right: 0;
}

.mobile-sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-sidebar-title {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mobile-sidebar-title strong {
    font-size: 1.1rem;
    letter-spacing: 0.06em;
}

.mobile-sidebar-tagline {
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
}

body[data-language="zh"] .mobile-sidebar-tagline {
    text-transform: none;
    letter-spacing: 0.12em;
}

.mobile-sidebar-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.2s ease;
}

.mobile-sidebar-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--accent);
}

.mobile-sidebar-nav {
    flex: 1;
    padding: 32px 0;
    display: flex;
    flex-direction: column;
}

.mobile-nav-link {
    display: block;
    padding: 16px 24px;
    color: var(--text);
    text-decoration: none;
    font-size: 1.05rem;
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
}

.mobile-nav-link:hover {
    background: rgba(255, 255, 255, 0.06);
    border-left-color: rgba(255, 255, 255, 0.3);
}

.mobile-nav-cta {
    margin-top: 16px;
    margin-left: 24px;
    margin-right: 24px;
    padding: 14px 24px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    text-align: center;
    border-left: none;
}

.mobile-nav-cta:hover {
    background: rgba(255, 255, 255, 0.15);
    border-left: none;
}

.mobile-sidebar-footer {
    padding: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-language-switcher {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 20px;
}

.mobile-lang-btn {
    flex: 1;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mobile-lang-btn.is-active {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--accent);
}

.mobile-lang-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.mobile-sidebar-social {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.mobile-sidebar-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text-muted);
    transition: all 0.25s ease;
}

.mobile-sidebar-social a:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--accent);
    transform: translateY(-2px);
}

.mobile-sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.mobile-sidebar-overlay.is-visible {
    opacity: 1;
    pointer-events: all;
}

/* Prevent body scroll when sidebar is open - without layout shift */
body.sidebar-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100vh;
}

@media (max-width: 960px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .language-switcher {
        display: none;
    }

    .hero .container,
    .cta .container {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        order: -1;
        min-height: 360px;
    }

    .site-nav {
        display: none;
    }
    .header-controls {
        justify-content: flex-end;
    }
    .language-switcher {
        padding-left: 0;
        border-left: none;
        gap: 12px;
    }

    .brand {
        gap: 12px;
    }

    .brand-mark {
        width: 48px;
        height: 48px;
    }

    .brand-tagline {
        letter-spacing: 0.2em;
        font-size: 0.65rem;
    }

    section {
        padding: 90px 0;
    }
}

@media (max-width: 640px) {
    .site-header {
        min-height: 70px;
    }

    .site-header .container {
        padding: 14px 0;
        min-height: 70px;
    }

    .container {
        width: min(1200px, 90vw);
    }

    section {
        padding: 70px 0;
    }

    .hero {
        padding-top: 150px;
    }

    .hero-text h1 {
        font-size: clamp(2rem, 8vw, 2.8rem);
    }

    .hero-text .lead {
        font-size: 1rem;
    }

    .hero-actions {
        margin-top: 28px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }

    .hero-visual {
        min-height: 320px;
    }

    .hero-card {
        padding: 28px;
        max-width: 100%;
    }

    .hero-card h3 {
        font-size: 1.1rem;
    }

    .hero-card p {
        font-size: 0.9rem;
    }

    .metrics {
        padding: 60px 0;
    }

    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        padding: 28px;
        gap: 24px;
    }

    .metric-value {
        font-size: 1.6rem;
    }

    .metric-label {
        font-size: 0.85rem;
    }

    .section-heading h2 {
        font-size: clamp(1.8rem, 7vw, 2.4rem);
    }

    .section-heading p {
        font-size: 0.95rem;
    }

    .pillars {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .pillar-card {
        padding: 24px;
    }

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

    .solution-card {
        padding: 28px;
    }

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

    .proof-card {
        padding: 24px;
    }

    .process-steps {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .step {
        padding: 28px 24px;
    }

    .apps-grid {
        grid-template-columns: 1fr;
        gap: 28px;
        margin-top: 40px;
    }

    .app-card {
        padding: 28px;
    }

    .app-card h3 {
        font-size: 1.4rem;
    }

    .app-icon {
        width: 64px;
        height: 64px;
    }

    .cta {
        padding: 80px 0 100px;
    }

    .cta .container {
        padding: 36px 24px;
        gap: 36px;
    }

    .cta-content h2 {
        font-size: clamp(1.8rem, 7vw, 2.2rem);
    }

    .cta-content p {
        font-size: 0.95rem;
    }

    .language-switcher {
        justify-content: flex-end;
        gap: 6px;
    }

    .lang-btn {
        padding: 5px 9px;
        font-size: 0.7rem;
    }

    .cta-form input,
    .cta-form textarea {
        font-size: 0.95rem;
        padding: 12px 16px;
    }

    .site-footer {
        padding: 60px 0 32px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        margin-bottom: 40px;
    }

    .footer-brand-text strong {
        font-size: 1.1rem;
    }

    .footer-brand-text p {
        font-size: 0.85rem;
    }

    .footer-social a {
        width: 36px;
        height: 36px;
    }

    .footer-social a svg {
        width: 18px;
        height: 18px;
    }

    .footer-nav {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
    }

    .footer-nav-group h4 {
        font-size: 0.9rem;
        margin-bottom: 14px;
    }

    .footer-nav-group ul {
        gap: 10px;
    }

    .footer-nav-group ul li a {
        font-size: 0.85rem;
    }

    .footer-contact-list li span {
        font-size: 0.8rem;
    }

    .footer-contact-list li a {
        font-size: 0.85rem;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        padding-top: 24px;
    }

    .footer-legal {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        font-size: 0.8rem;
    }

    .footer-links {
        gap: 16px;
    }

    .footer-tagline {
        font-size: 0.8rem;
    }
}