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

:root {
    --primary: #7c3aed;
    --primary-light: #a78bfa;
    --secondary: #06b6d4;
    --accent: #f59e0b;
    --dark-bg: #0d0d14;
    --dark-secondary: #13131f;
    --dark-card: #1a1a2e;
    --dark-border: rgba(124, 58, 237, 0.2);
    --text-primary: #f1f0ff;
    --text-secondary: #9ca3af;
    --gradient-main: linear-gradient(135deg, #7c3aed 0%, #06b6d4 100%);
    --gradient-card: linear-gradient(135deg, rgba(124,58,237,0.15) 0%, rgba(6,182,212,0.1) 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

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

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: rgba(13, 13, 20, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 1000;
    border-bottom: 1px solid var(--dark-border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}
.logo img {
    width: 32px;
    height: auto;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-main);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 900;
    color: #fff;
    -webkit-text-fill-color: #fff;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 28px;
    flex: 1;
    justify-content: center;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: var(--primary-light);
}

.nav-cta {
    background: var(--gradient-main);
    color: #fff;
    text-decoration: none;
    padding: 9px 22px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
    transition: opacity 0.3s, transform 0.2s;
}

.nav-cta:hover {
    opacity: 0.88;
    transform: translateY(-1px);
}

/* ===== HERO ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(124,58,237,0.18) 0%, transparent 70%),
                radial-gradient(ellipse 60% 40% at 80% 80%, rgba(6,182,212,0.1) 0%, transparent 60%),
                var(--dark-bg);
}

.hero-badge {
    display: inline-block;
    background: rgba(124,58,237,0.18);
    border: 1px solid rgba(124,58,237,0.4);
    color: var(--primary-light);
    padding: 6px 18px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 28px;
    letter-spacing: 0.02em;
}

.hero h1 {
    font-size: clamp(28px, 6vw, 36px);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #f1f0ff 0%, var(--primary-light) 50%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(16px, 2vw, 20px);
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto 36px;
    line-height: 1.8;
}
.hero-input-demo {
    display: flex;
    align-items: center;
    gap: 16px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--dark-border);
    border-radius: 16px;
    padding: 18px 28px;
    margin: 0 auto 36px;
    max-width: 640px;
    flex-wrap: wrap;
    justify-content: center;
}

.demo-input {
    color: var(--text-secondary);
    font-size: 14px;
    font-style: italic;
}

.demo-arrow {
    color: var(--primary-light);
    font-size: 22px;
    font-weight: 700;
}

.demo-output {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    font-size: 15px;
}

.cta-group {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 52px;
}

.cta-button {
    display: inline-block;
    background: var(--gradient-main);
    color: #fff;
    text-decoration: none;
    padding: 16px 42px;
    border-radius: 12px;
    font-size: 17px;
    font-weight: 700;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 24px rgba(124,58,237,0.4);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(124,58,237,0.55);
}

.cta-secondary {
    display: inline-block;
    color: var(--primary-light);
    text-decoration: none;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 17px;
    font-weight: 600;
    border: 1px solid rgba(124,58,237,0.4);
    transition: background 0.2s, border-color 0.2s;
}

.cta-secondary:hover {
    background: rgba(124,58,237,0.1);
    border-color: var(--primary-light);
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 0;
    justify-content: center;
    flex-wrap: wrap;
    gap: 4px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 32px;
}

.stat-num {
    font-size: 32px;
    font-weight: 800;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--dark-border);
}

/* ===== SECTION COMMON ===== */
.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header h2 {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: -0.01em;
}

.section-desc {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ===== ABOUT ===== */
.about {
    padding: 100px 0;
    background: var(--dark-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.about-text h2 {
    font-size: clamp(28px, 3.5vw, 38px);
    font-weight: 800;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

.about-text p {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.85;
    margin-bottom: 18px;
}

.about-text strong {
    color: var(--primary-light);
    font-weight: 600;
}

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.highlight-card {
    background: var(--gradient-card);
    border: 1px solid var(--dark-border);
    border-radius: 16px;
    padding: 24px;
    transition: transform 0.3s, border-color 0.3s;
}

.highlight-card:hover {
    transform: translateY(-3px);
    border-color: rgba(124,58,237,0.5);
}

.highlight-icon {
    font-size: 28px;
    margin-bottom: 10px;
}

.highlight-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.highlight-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== FEATURES ===== */
.features {
    padding: 100px 0;
    background: var(--dark-bg);
}

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

.feature-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 20px;
    padding: 32px;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(124,58,237,0.5);
    box-shadow: 0 12px 40px rgba(124,58,237,0.15);
}

.feature-card.featured {
    grid-column: span 2;
    background: var(--gradient-card);
    border-color: rgba(124,58,237,0.4);
}

.feature-icon {
    font-size: 36px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.75;
    margin-bottom: 16px;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    color: var(--text-secondary);
    font-size: 14px;
    padding: 5px 0 5px 20px;
    position: relative;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-light);
    font-weight: 700;
}

/* ===== SCENARIOS ===== */
.scenarios {
    padding: 100px 0;
    background: var(--dark-secondary);
}

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

.scenario-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 20px;
    padding: 32px;
    transition: transform 0.3s, border-color 0.3s;
}

.scenario-card:hover {
    transform: translateY(-4px);
    border-color: rgba(6,182,212,0.5);
}

.scenario-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.scenario-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.scenario-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 18px;
}

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

.scenario-tags span {
    background: rgba(6,182,212,0.1);
    border: 1px solid rgba(6,182,212,0.3);
    color: var(--secondary);
    padding: 3px 12px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
}

/* ===== COMPARISON ===== */
.comparison {
    padding: 100px 0;
    background: var(--dark-bg);
}

.comparison-table {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.compare-col {
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--dark-border);
}

.compare-header {
    padding: 20px 28px;
    font-size: 16px;
    font-weight: 700;
    text-align: center;
}

.compare-old .compare-header {
    background: rgba(255,255,255,0.05);
    color: var(--text-secondary);
}

.compare-new .compare-header {
    background: var(--gradient-main);
    color: #fff;
}

.compare-item {
    padding: 14px 28px;
    font-size: 14px;
    border-top: 1px solid rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    gap: 10px;
}

.compare-item.bad {
    color: var(--text-secondary);
}

.compare-item.good {
    color: var(--text-primary);
    background: rgba(124,58,237,0.05);
}

.compare-item.bad::before { content: '✗'; color: #ef4444; font-weight: 700; }
.compare-item.good::before { content: '✓'; color: #10b981; font-weight: 700; }

/* ===== GUIDE ===== */
.guide {
    padding: 100px 0;
    background: var(--dark-secondary);
}

.guide-steps {
    display: flex;
    flex-direction: column;
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
}

.guide-step {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 20px;
    padding: 36px;
    transition: border-color 0.3s;
}

.guide-step:hover {
    border-color: rgba(124,58,237,0.5);
}

.step-number {
    font-size: 48px;
    font-weight: 900;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    flex-shrink: 0;
    min-width: 60px;
}

.step-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 14px;
}

.step-tip {
    background: rgba(245,158,11,0.1);
    border: 1px solid rgba(245,158,11,0.3);
    color: var(--accent);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
}

/* ===== PRICING ===== */
.pricing {
    padding: 100px 0;
    background: var(--dark-bg);
}

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

.pricing-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 24px;
    padding: 40px 32px;
    position: relative;
    transition: transform 0.3s, border-color 0.3s;
}

.pricing-card:hover {
    transform: translateY(-4px);
}

.pricing-card.featured {
    border-color: var(--primary);
    background: var(--gradient-card);
    box-shadow: 0 0 40px rgba(124,58,237,0.2);
}

.plan-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-main);
    color: #fff;
    padding: 4px 18px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}

.plan-name {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.plan-price {
    font-size: 48px;
    font-weight: 900;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 28px;
    line-height: 1;
}

.plan-price span {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-secondary);
    -webkit-text-fill-color: var(--text-secondary);
}

.plan-features {
    list-style: none;
    margin-bottom: 32px;
}

.plan-features li {
    padding: 9px 0;
    font-size: 14px;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.plan-features li.disabled {
    opacity: 0.4;
    text-decoration: line-through;
}

.plan-btn {
    display: block;
    text-align: center;
    padding: 14px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    border: 1px solid rgba(124,58,237,0.4);
    color: var(--primary-light);
    transition: background 0.2s, border-color 0.2s;
}

.plan-btn:hover {
    background: rgba(124,58,237,0.15);
    border-color: var(--primary-light);
}

.plan-btn.featured-btn {
    background: var(--gradient-main);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 20px rgba(124,58,237,0.4);
}

.plan-btn.featured-btn:hover {
    opacity: 0.9;
    background: var(--gradient-main);
}

/* ===== TESTIMONIALS ===== */
.testimonials {
    padding: 100px 0;
    background: var(--dark-secondary);
}

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

.testimonial-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 20px;
    padding: 32px;
    transition: transform 0.3s;
}

.testimonial-card:hover {
    transform: translateY(-3px);
}

.stars {
    color: var(--accent);
    font-size: 18px;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.testimonial-card p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author {
    font-size: 14px;
    color: var(--primary-light);
}

/* ===== TIPS ===== */
.tips {
    padding: 100px 0;
    background: var(--dark-bg);
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.tip-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 20px;
    padding: 36px;
    transition: transform 0.3s, border-color 0.3s;
}

.tip-card:hover {
    transform: translateY(-3px);
    border-color: rgba(124,58,237,0.5);
}

.tip-num {
    font-size: 48px;
    font-weight: 900;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 12px;
}

.tip-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.tip-card p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
}

/* ===== FAQ ===== */
.faq {
    padding: 100px 0;
    background: var(--dark-secondary);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 16px;
    padding: 28px 32px;
    transition: border-color 0.3s;
}

.faq-item:hover {
    border-color: rgba(124,58,237,0.5);
}

.faq-item h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
    line-height: 1.5;
}

.faq-item p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
}

/* ===== FINAL CTA ===== */
.final-cta {
    padding: 120px 24px;
    text-align: center;
    background: radial-gradient(ellipse 80% 60% at 50% 50%, rgba(124,58,237,0.18) 0%, transparent 70%),
                var(--dark-bg);
}

.final-cta h2 {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 800;
    margin-bottom: 18px;
    letter-spacing: -0.01em;
}

.final-cta p {
    color: var(--text-secondary);
    font-size: 17px;
    max-width: 580px;
    margin: 0 auto 36px;
    line-height: 1.8;
}

.cta-note {
    font-size: 13px !important;
    color: var(--text-secondary) !important;
    margin-top: 16px !important;
    margin-bottom: 0 !important;
}

/* Hero focused CTA */
.cta-hero {
    font-size: 20px;
    padding: 20px 56px;
    border-radius: 16px;
    box-shadow: 0 0 0 4px rgba(124,58,237,0.2), 0 8px 40px rgba(124,58,237,0.5);
    animation: pulse-glow 2.4s ease-in-out infinite;
    margin-bottom: 14px;
    display: inline-block;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 0 4px rgba(124,58,237,0.2), 0 8px 40px rgba(124,58,237,0.5); }
    50%       { box-shadow: 0 0 0 8px rgba(124,58,237,0.12), 0 12px 56px rgba(124,58,237,0.7); }
}

.hero-cta-note {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 48px;
}

/* ===== VIDEOS ===== */
.videos {
    padding: 100px 0;
    background: var(--dark-bg);
}

.video-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 28px;
    align-items: start;
}

.video-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 20px;
    overflow: hidden;
    transition: border-color 0.3s;
}

.video-card:hover {
    border-color: rgba(124,58,237,0.5);
}

.video-wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    background: #000;
}

.video-wrapper iframe {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-info {
    padding: 24px 28px;
}

.video-tag {
    display: inline-block;
    background: rgba(124,58,237,0.15);
    border: 1px solid rgba(124,58,237,0.35);
    color: var(--primary-light);
    padding: 3px 12px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 12px;
}

.video-info h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.5;
    color: var(--text-primary);
}

.video-info p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.75;
}

.video-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.video-tip-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 16px;
    padding: 24px;
}

.vtip-icon {
    font-size: 28px;
    margin-bottom: 10px;
}

.video-tip-card h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.video-tip-card ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 18px;
}

.video-tip-card li {
    font-size: 13px;
    color: var(--text-secondary);
    padding-left: 16px;
    position: relative;
    line-height: 1.6;
}

.video-tip-card li::before {
    content: '·';
    position: absolute;
    left: 0;
    color: var(--primary-light);
    font-weight: 900;
}

.vtip-btn {
    display: block;
    text-align: center;
    background: var(--gradient-main);
    color: #fff;
    text-decoration: none;
    padding: 11px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 700;
    transition: opacity 0.2s;
}

.vtip-btn:hover {
    opacity: 0.88;
}

@media (max-width: 1024px) {
    .video-grid { grid-template-columns: 1fr; }
    .video-sidebar { flex-direction: row; }
    .video-tip-card { flex: 1; }
}

@media (max-width: 640px) {
    .video-sidebar { flex-direction: column; }
    .cta-hero { font-size: 17px; padding: 16px 36px; }
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark-secondary);
    border-top: 1px solid var(--dark-border);
    padding: 60px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-top: 16px;
    max-width: 280px;
}

.footer-links h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

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

.footer-bottom {
    border-top: 1px solid var(--dark-border);
    padding-top: 28px;
    text-align: center;
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 13px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .feature-card.featured {
        grid-column: span 2;
    }
    .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 440px;
        margin: 0 auto;
    }
    .testimonial-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu { display: none; }
    .feature-grid { grid-template-columns: 1fr; }
    .feature-card.featured { grid-column: span 1; }
    .scenario-grid { grid-template-columns: 1fr; }
    .comparison-table { grid-template-columns: 1fr; }
    .tips-grid { grid-template-columns: 1fr; }
    .about-highlights { grid-template-columns: 1fr; }
    .hero-stats { gap: 0; }
    .stat-item { padding: 0 16px; }
    .stat-num { font-size: 24px; }
    .guide-step { flex-direction: column; gap: 16px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .hero-input-demo { flex-direction: column; gap: 8px; }
    .demo-arrow { transform: rotate(90deg); }
}

@media (max-width: 480px) {
    .hero { padding: 100px 16px 60px; }
    .cta-group { flex-direction: column; align-items: center; }
    .nav-cta { display: none; }
    .stat-divider { display: none; }
    .hero-stats { gap: 16px; }
}