/* ============================================================
   快连 KuaiLian - 全局样式表
   最后更新：2026-07-30
   ============================================================ */

:root {
    --bg-primary: #0f172a;
    --bg-secondary: #162032;
    --bg-card: #1e293b;
    --bg-card-hover: #253449;
    --bg-nav: rgba(15, 23, 42, 0.92);
    --accent: #3b82f6;
    --accent-light: #60a5fa;
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #6366f1 50%, #8b5cf6 100%);
    --accent-gradient-hover: linear-gradient(135deg, #4b92ff 0%, #7376ff 50%, #9b6cff 100%);
    --accent-green: #10b981;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;
    --border-subtle: rgba(255, 255, 255, 0.05);
    --border-card: rgba(255, 255, 255, 0.08);
    --shadow-glow: 0 0 60px rgba(59, 130, 246, 0.12);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-button: 0 8px 32px rgba(59, 130, 246, 0.3);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Segoe UI", sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 16px;
}

body {
    font-family: var(--font-stack);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
    background-image:
        radial-gradient(ellipse at 15% 5%, rgba(59, 130, 246, 0.05) 0%, transparent 65%),
        radial-gradient(ellipse at 85% 25%, rgba(99, 102, 241, 0.04) 0%, transparent 65%),
        radial-gradient(ellipse at 50% 65%, rgba(139, 92, 246, 0.03) 0%, transparent 65%);
    background-attachment: fixed;
}

/* ============ NAVIGATION ============ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--bg-nav);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    transition: all var(--transition-smooth);
    height: 68px;
}
.nav.scrolled {
    box-shadow: 0 2px 24px rgba(0, 0, 0, 0.45);
    height: 60px;
}
.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.01em;
    flex-shrink: 0;
    transition: opacity var(--transition-fast);
}
.nav-logo:hover { opacity: 0.85; }
.nav-logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.35);
    font-size: 1.2rem;
    font-weight: 800;
    color: #fff;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
}
.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    white-space: nowrap;
    letter-spacing: 0.01em;
}
.nav-links a:hover,
.nav-links a:focus-visible {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
}
.nav-btn-download {
    background: var(--accent-gradient) !important;
    color: #fff !important;
    padding: 9px 22px !important;
    font-weight: 600 !important;
    border-radius: var(--radius-full) !important;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
    transition: all var(--transition-smooth) !important;
}
.nav-btn-download:hover {
    box-shadow: 0 6px 24px rgba(59, 130, 246, 0.5) !important;
    transform: translateY(-1px);
    background: var(--accent-gradient-hover) !important;
    color: #fff !important;
}
.nav-mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--text-primary);
    z-index: 1001;
}
.nav-mobile-toggle span {
    display: block;
    width: 26px;
    height: 2.5px;
    background: var(--text-primary);
    margin: 6px 0;
    border-radius: 3px;
    transition: all var(--transition-fast);
}
.nav-mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
.nav-mobile-toggle.active span:nth-child(2) { opacity: 0; }
.nav-mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }
.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-smooth);
}
.nav-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* ============ HERO ============ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 700px;
    height: 700px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    pointer-events: none;
    animation: heroGlow 8s ease-in-out infinite;
}
@keyframes heroGlow {
    0%, 100% { transform: translateX(-50%) scale(1); opacity: 0.8; }
    50% { transform: translateX(-50%) scale(1.25); opacity: 0.4; }
}
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.25);
    padding: 6px 18px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-light);
    letter-spacing: 0.03em;
    margin-bottom: 28px;
    animation: fadeInUp 0.7s ease-out;
}
.hero-badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10b981;
    animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%, 100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6); }
    50% { box-shadow: 0 0 0 12px rgba(16, 185, 129, 0); }
}
.hero h1 {
    font-size: clamp(2.4rem, 5.5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.18;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
    animation: fadeInUp 0.7s ease-out 0.1s both;
}
.hero h1 .highlight {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.7;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.7s ease-out 0.2s both;
}
.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 0.7s ease-out 0.3s both;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-stack);
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.02em;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-smooth);
    white-space: nowrap;
    border-radius: var(--radius-full);
    position: relative;
    overflow: hidden;
}
.btn-download-hero {
    background: var(--accent-gradient);
    color: #fff;
    padding: 16px 36px;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    box-shadow: var(--shadow-button);
    border-radius: var(--radius-full);
}
.btn-download-hero:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 40px rgba(59, 130, 246, 0.45);
    background: var(--accent-gradient-hover);
}
.btn-download-hero:active {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.35);
}
.btn-download-hero .btn-icon-arrow {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-fast);
}
.btn-download-hero:hover .btn-icon-arrow {
    transform: translateY(2px);
}
.btn-outline-hero {
    background: transparent;
    color: var(--text-primary);
    padding: 15px 32px;
    font-size: 1rem;
    font-weight: 600;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    backdrop-filter: blur(4px);
}
.btn-outline-hero:hover {
    border-color: rgba(255, 255, 255, 0.45);
    background: rgba(255, 255, 255, 0.04);
    transform: translateY(-2px);
}
.hero-stats {
    display: flex;
    gap: 36px;
    justify-content: center;
    margin-top: 48px;
    flex-wrap: wrap;
    animation: fadeInUp 0.7s ease-out 0.4s both;
}
.hero-stat { text-align: center; }
.hero-stat-number {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.hero-stat-label {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-top: 2px;
    letter-spacing: 0.03em;
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(28px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============ SECTIONS ============ */
.section {
    padding: 80px 24px;
    max-width: 1200px;
    margin: 0 auto;
}
.section-header {
    text-align: center;
    margin-bottom: 56px;
}
.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent-light);
    background: rgba(59, 130, 246, 0.1);
    padding: 5px 14px;
    border-radius: var(--radius-full);
    margin-bottom: 14px;
}
.section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
    line-height: 1.25;
}
.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 540px;
    margin: 0 auto;
    line-height: 1.65;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-smooth);
}
.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.14);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card), var(--shadow-glow);
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    background: rgba(59, 130, 246, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    font-size: 1.5rem;
    transition: all var(--transition-smooth);
}
.feature-card:hover .feature-icon {
    background: rgba(59, 130, 246, 0.2);
    transform: scale(1.05);
}
.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}
.feature-card p {
    font-size: 0.92rem;
    color: var(--text-tertiary);
    line-height: 1.6;
}

/* Specs Table */
.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}
.spec-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 24px;
    text-align: center;
    transition: all var(--transition-smooth);
}
.spec-card:hover {
    border-color: rgba(255, 255, 255, 0.16);
    background: var(--bg-card-hover);
}
.spec-value {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    margin-bottom: 4px;
}
.spec-label {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    letter-spacing: 0.03em;
}

/* Steps */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}
.step-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    position: relative;
    transition: all var(--transition-smooth);
}
.step-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-card);
}
.step-number {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: #fff;
    font-weight: 800;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}
.step-card h3 {
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: 6px;
}
.step-card p {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    line-height: 1.5;
}

/* FAQ */
.faq-list {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-fast);
}
.faq-item:hover {
    border-color: rgba(255, 255, 255, 0.14);
    background: var(--bg-card-hover);
}
.faq-question {
    padding: 18px 22px;
    font-weight: 600;
    font-size: 0.98rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    letter-spacing: 0.01em;
    color: var(--text-primary);
    user-select: none;
}
.faq-question::after {
    content: '+';
    font-size: 1.4rem;
    font-weight: 300;
    color: var(--text-tertiary);
    transition: transform var(--transition-fast);
    flex-shrink: 0;
}
.faq-item.open .faq-question::after {
    content: '−';
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 22px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.65;
}
.faq-item.open .faq-answer {
    max-height: 260px;
    padding: 0 22px 18px;
}

/* CTA Banner */
.cta-banner {
    background: var(--bg-secondary);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-xl);
    padding: 56px 32px;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin: 40px 0;
}
.cta-banner::before {
    content: '';
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
    pointer-events: none;
}
.cta-banner h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}
.cta-banner p {
    color: var(--text-secondary);
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
    font-size: 1rem;
}
.cta-banner .btn-download-hero {
    position: relative;
    z-index: 1;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-subtle);
    padding: 32px 24px;
    text-align: center;
    color: var(--text-tertiary);
    font-size: 0.85rem;
    letter-spacing: 0.02em;
}
.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}
.footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}
.footer a:hover { color: var(--text-primary); }

/* ============ PAGE HEADER (for inner pages) ============ */
.page-header {
    padding: 120px 24px 40px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}
.page-header h1 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}
.page-header .highlight {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.page-header p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.65;
}

/* ============ DOWNLOAD PAGE ============ */
.download-platforms {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    max-width: 900px;
    margin: 0 auto;
}
.platform-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    transition: all var(--transition-smooth);
    text-decoration: none;
    color: var(--text-primary);
    display: block;
}
.platform-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-card);
    border-color: rgba(59, 130, 246, 0.3);
}
.platform-icon {
    font-size: 2.5rem;
    margin-bottom: 14px;
    display: block;
}
.platform-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 4px;
}
.platform-card .version {
    font-size: 0.82rem;
    color: var(--text-tertiary);
}
.platform-card .size {
    font-size: 0.78rem;
    color: var(--text-tertiary);
    margin-top: 2px;
}

/* Version Info */
.version-table {
    max-width: 700px;
    margin: 40px auto;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.version-table table {
    width: 100%;
    border-collapse: collapse;
}
.version-table th,
.version-table td {
    padding: 14px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.9rem;
}
.version-table th {
    background: var(--bg-card-hover);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}
.version-table td {
    color: var(--text-secondary);
}
.version-table tr:last-child td {
    border-bottom: none;
}

/* ============ ARTICLE PAGES ============ */
.article-container {
    max-width: 760px;
    margin: 0 auto;
    padding: 20px 24px 60px;
}
.article-meta {
    display: flex;
    gap: 16px;
    color: var(--text-tertiary);
    font-size: 0.85rem;
    margin-bottom: 24px;
    flex-wrap: wrap;
    justify-content: center;
}
.article-body {
    color: var(--text-secondary);
    line-height: 1.85;
    font-size: 1rem;
}
.article-body h2 {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
    margin: 36px 0 14px;
    letter-spacing: -0.01em;
}
.article-body h3 {
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 700;
    margin: 28px 0 10px;
}
.article-body p {
    margin-bottom: 16px;
}
.article-body ul, .article-body ol {
    margin-bottom: 16px;
    padding-left: 24px;
}
.article-body li {
    margin-bottom: 6px;
}
.article-body blockquote {
    border-left: 3px solid var(--accent);
    margin: 20px 0;
    padding: 12px 20px;
    background: rgba(59, 130, 246, 0.05);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-secondary);
    font-style: italic;
}
.article-body .editor-note {
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin: 24px 0;
    font-size: 0.9rem;
}
.article-body .editor-note strong {
    color: var(--accent-light);
}
.article-body .highlight-box {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 20px;
    margin: 20px 0;
}
.article-footer-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 48px;
    padding-top: 20px;
    border-top: 1px solid var(--border-subtle);
    flex-wrap: wrap;
    gap: 12px;
}
.article-footer-nav a {
    color: var(--accent-light);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}
.article-footer-nav a:hover { color: var(--text-primary); }

/* ============ ARTICLES LIST PAGE ============ */
.article-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.article-list-item {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all var(--transition-smooth);
    display: block;
    text-decoration: none;
    color: inherit;
}
.article-list-item:hover {
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}
.article-list-item .date {
    font-size: 0.82rem;
    color: var(--text-tertiary);
    margin-bottom: 6px;
}
.article-list-item h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}
.article-list-item .excerpt {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
}
.article-list-item .read-more {
    display: inline-block;
    color: var(--accent-light);
    font-weight: 600;
    font-size: 0.9rem;
    margin-top: 10px;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 320px;
        height: 100vh;
        background: var(--bg-nav);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        flex-direction: column;
        padding: 100px 28px 40px;
        gap: 4px;
        transition: right var(--transition-smooth);
        border-left: 1px solid var(--border-subtle);
        box-shadow: -4px 0 30px rgba(0, 0, 0, 0.5);
        align-items: stretch;
    }
    .nav-links.active { right: 0; }
    .nav-links a {
        padding: 12px 16px;
        font-size: 1rem;
        border-radius: var(--radius-md);
        text-align: center;
    }
    .nav-mobile-toggle { display: block; }
    .hero {
        padding: 100px 20px 60px;
        min-height: auto;
    }
    .hero h1 { font-size: 2rem; }
    .hero-stats { gap: 20px; }
    .hero-stat-number { font-size: 1.5rem; }
    .hero-actions {
        flex-direction: column;
        gap: 12px;
    }
    .btn-download-hero, .btn-outline-hero {
        width: 100%;
        justify-content: center;
        text-align: center;
    }
    .section { padding: 50px 16px; }
    .features-grid { grid-template-columns: 1fr; gap: 14px; }
    .steps-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
    .specs-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .download-platforms { grid-template-columns: 1fr 1fr; gap: 12px; }
    .cta-banner { padding: 36px 20px; border-radius: var(--radius-lg); }
    .article-container { padding: 16px 16px 40px; }
    .version-table { overflow-x: auto; }
    .version-table table { min-width: 500px; }
}
@media (max-width: 480px) {
    .steps-grid { grid-template-columns: 1fr; }
    .specs-grid { grid-template-columns: 1fr; }
    .download-platforms { grid-template-columns: 1fr; }
    .hero-stats { gap: 14px; }
    .hero-stat-number { font-size: 1.3rem; }
    .hero-stat-label { font-size: 0.75rem; }
    .article-footer-nav { flex-direction: column; text-align: center; }
}