/* ===== RESET & TOKENS ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    /* 米陶色系 */
    --c-bg: oklch(0.975 0.006 70);
    --c-surface: oklch(0.99 0.004 70);
    --c-surface-raised: oklch(1.0 0.002 70);
    --c-border: oklch(0.90 0.012 60);
    --c-border-subtle: oklch(0.94 0.008 65);
    --c-primary: oklch(0.48 0.12 55);
    --c-primary-hover: oklch(0.42 0.14 55);
    --c-primary-light: oklch(0.92 0.04 60);
    --c-accent: oklch(0.60 0.15 45);
    --c-text: oklch(0.18 0.015 60);
    --c-text-secondary: oklch(0.45 0.02 60);
    --c-text-muted: oklch(0.60 0.015 60);
    --c-warm-overlay: oklch(0.96 0.01 70 / 0.8);

    /* Typography */
    --font-heading: 'Sora', system-ui, sans-serif;
    --font-body: 'Outfit', system-ui, sans-serif;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 40px;
    --space-2xl: 64px;
    --space-3xl: 96px;
    --space-4xl: 128px;

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;

    /* Shadows */
    --shadow-sm: 0 1px 3px oklch(0.5 0.02 60 / 0.06);
    --shadow-md: 0 4px 16px oklch(0.5 0.02 60 / 0.08);
    --shadow-lg: 0 8px 32px oklch(0.5 0.02 60 / 0.10);
    --shadow-xl: 0 16px 48px oklch(0.5 0.02 60 / 0.12);

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --duration-fast: 200ms;
    --duration-normal: 350ms;
    --duration-slow: 600ms;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--c-bg);
    color: var(--c-text);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

/* ===== LAYOUT ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section {
    padding: var(--space-4xl) 0;
}

.section-label {
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-primary);
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 700;
    line-height: 1.2;
    color: var(--c-text);
    margin-bottom: var(--space-md);
}

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

/* ===== NAVIGATION ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: oklch(0.975 0.006 70 / 0.85);
    backdrop-filter: blur(20px) saturate(1.2);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
    border-bottom: 1px solid var(--c-border-subtle);
    transition: box-shadow var(--duration-normal) var(--ease-out);
}

.nav.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 800;
    color: var(--c-text);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-logo span {
    color: var(--c-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    list-style: none;
}

.nav-links a {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    color: var(--c-text-secondary);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--c-primary);
    transition: width var(--duration-normal) var(--ease-out);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    color: var(--c-surface-raised);
    background: var(--c-primary);
    border: none;
    padding: 8px 20px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    transition: background var(--duration-fast) var(--ease-out),
                transform var(--duration-fast) var(--ease-out);
}

.nav-cta:hover {
    background: var(--c-primary-hover);
    transform: translateY(-1px);
}

.nav-mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.nav-mobile-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--c-text);
    margin: 5px 0;
    transition: all var(--duration-fast) var(--ease-out);
}

/* ===== HERO ===== */
.hero {
    padding-top: 160px;
    padding-bottom: var(--space-4xl);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, oklch(0.92 0.04 60 / 0.5) 0%, transparent 70%);
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--c-primary-light);
    color: var(--c-primary);
    font-size: 13px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: var(--space-lg);
}

.hero-badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--c-primary);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(36px, 5.5vw, 64px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--c-text);
    margin-bottom: var(--space-lg);
}

.hero-title em {
    font-style: normal;
    position: relative;
}

.hero-title em::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    width: 100%;
    height: 12px;
    background: oklch(0.85 0.08 60 / 0.4);
    z-index: -1;
    border-radius: 2px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--c-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
    max-width: 460px;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.btn-primary {
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    color: var(--c-surface-raised);
    background: var(--c-primary);
    border: none;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    transition: all var(--duration-fast) var(--ease-out);
    box-shadow: 0 2px 8px oklch(0.48 0.12 55 / 0.25);
}

.btn-primary:hover {
    background: var(--c-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px oklch(0.48 0.12 55 / 0.35);
}

.btn-secondary {
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 500;
    color: var(--c-text-secondary);
    background: transparent;
    border: 1px solid var(--c-border);
    padding: 13px 28px;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--duration-fast) var(--ease-out);
}

.btn-secondary:hover {
    color: var(--c-text);
    border-color: var(--c-text-muted);
    background: var(--c-surface);
}

.btn-arrow {
    transition: transform var(--duration-fast) var(--ease-out);
}

.btn-primary:hover .btn-arrow {
    transform: translateX(3px);
}

/* ===== CARD MOCKUP ===== */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 32px;
}

.card-mockup {
    width: 380px;
    height: 240px;
    background: linear-gradient(135deg, oklch(0.35 0.08 55) 0%, oklch(0.25 0.10 50) 100%);
    border-radius: 16px;
    padding: 32px;
    position: relative;
    box-shadow: var(--shadow-xl);
    transform: perspective(800px) rotateY(-8deg) rotateX(4deg);
    transition: transform var(--duration-slow) var(--ease-out);
}

.card-mockup:hover {
    transform: perspective(800px) rotateY(-2deg) rotateX(1deg);
}

.card-mockup::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 16px;
    background: radial-gradient(circle at 30% 40%, oklch(0.6 0.06 60 / 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.card-chip {
    width: 42px;
    height: 32px;
    background: linear-gradient(135deg, oklch(0.75 0.06 80) 0%, oklch(0.65 0.08 70) 100%);
    border-radius: 6px;
    margin-bottom: 28px;
    position: relative;
}

.card-chip::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 6px;
    right: 6px;
    bottom: 6px;
    border: 1px solid oklch(0.55 0.04 70 / 0.3);
    border-radius: 3px;
}

.card-number {
    font-family: var(--font-heading);
    font-size: 18px;
    letter-spacing: 0.15em;
    color: oklch(0.9 0.01 70);
    margin-bottom: 24px;
    font-weight: 500;
}

.card-bottom {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.card-holder-label,
.card-expiry-label {
    font-size: 9px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: oklch(0.6 0.02 70);
    margin-bottom: 4px;
}

.card-holder-name,
.card-expiry-value {
    font-family: var(--font-heading);
    font-size: 13px;
    color: oklch(0.85 0.01 70);
    font-weight: 500;
    letter-spacing: 0.05em;
}

.card-visa {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 700;
    font-style: italic;
    color: oklch(0.9 0.03 80);
    letter-spacing: 0.02em;
    position: absolute;
    bottom: 32px;
    right: 32px;
}


/* ===== PAIN POINTS ===== */
.pain-section {
    background: var(--c-surface);
    border-top: 1px solid var(--c-border-subtle);
    border-bottom: 1px solid var(--c-border-subtle);
}

.pain-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.pain-card {
    background: var(--c-surface-raised);
    border: 1px solid var(--c-border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
}

.pain-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--c-border);
}

.pain-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    font-size: 20px;
}

.pain-card--problem .pain-card-icon {
    background: oklch(0.92 0.04 30 / 0.5);
    color: oklch(0.50 0.12 30);
}

.pain-card--blocked .pain-card-icon {
    background: oklch(0.92 0.04 30 / 0.5);
    color: oklch(0.50 0.12 30);
}

.pain-card--solution .pain-card-icon {
    background: oklch(0.92 0.04 145 / 0.4);
    color: oklch(0.45 0.12 145);
}

.pain-card h3 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.pain-card p {
    font-size: 15px;
    color: var(--c-text-secondary);
    line-height: 1.6;
}

.pain-card--solution {
    border-color: oklch(0.80 0.06 145 / 0.4);
    background: oklch(0.97 0.01 145 / 0.3);
}

.pain-highlight {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: var(--space-md);
    padding: 8px 14px;
    background: oklch(0.93 0.04 145 / 0.4);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    color: oklch(0.32 0.10 145);
}

.pain-highlight svg {
    flex-shrink: 0;
    color: oklch(0.40 0.12 145);
}

/* ===== IP SECTION ===== */
.ip-section {
    background: var(--c-surface);
    border-top: 1px solid var(--c-border-subtle);
    border-bottom: 1px solid var(--c-border-subtle);
}

.ip-card {
    background: var(--c-surface-raised);
    border: 1px solid var(--c-border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-sm);
}

.ip-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.ip-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: oklch(0.93 0.04 55 / 0.5);
    color: oklch(0.45 0.12 55);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 4px;
}

.ip-header .section-label {
    margin-bottom: var(--space-xs);
}

.ip-header .section-title {
    margin-bottom: 0;
    font-size: clamp(22px, 3vw, 30px);
}

.ip-lead {
    font-size: 16px;
    color: var(--c-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
    max-width: 680px;
}

.ip-lead strong {
    color: var(--c-text);
    font-weight: 600;
}

.ip-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.ip-col {
    padding: var(--space-lg);
    background: var(--c-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--c-border-subtle);
}

.ip-col h4 {
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--c-text);
}

.ip-col p {
    font-size: 14px;
    color: var(--c-text-secondary);
    line-height: 1.6;
}

.ip-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.ip-compare-item {
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--c-border-subtle);
    background: var(--c-surface);
}

.ip-compare-item--recommended {
    border-color: oklch(0.78 0.06 145 / 0.5);
    background: oklch(0.97 0.01 145 / 0.2);
}

.ip-compare-tag {
    font-family: var(--font-heading);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-text-muted);
    margin-bottom: var(--space-sm);
}

.ip-compare-item--recommended .ip-compare-tag {
    color: oklch(0.40 0.12 145);
}

.ip-compare-item h4 {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.ip-compare-item p {
    font-size: 14px;
    color: var(--c-text-secondary);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .ip-grid,
    .ip-compare {
        grid-template-columns: 1fr;
    }

    .ip-header {
        flex-direction: column;
        gap: var(--space-md);
    }

    .ip-card {
        padding: var(--space-xl);
    }
}

/* ===== SERVICES ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.service-card {
    background: var(--c-surface-raised);
    border: 1px solid var(--c-border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    text-align: center;
    transition: all var(--duration-normal) var(--ease-out);
    cursor: default;
}

.service-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--c-border);
}

.service-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--c-surface);
    border: 1px solid var(--c-border-subtle);
}

.service-icon img {
    display: block;
    width: 36px;
    height: 36px;
    object-fit: contain;
}

.service-card h4 {
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
}

.service-card p {
    font-size: 13px;
    color: var(--c-text-muted);
}

/* ===== FLOW SECTION ===== */
.flow-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
    max-width: 760px;
}

.flow-step {
    background: var(--c-surface-raised);
    border: 1px solid var(--c-border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    display: grid;
    grid-template-columns: 48px 1fr auto;
    gap: var(--space-lg);
    align-items: center;
    transition: all var(--duration-normal) var(--ease-out);
}

.flow-step:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
    border-color: var(--c-border);
}

.flow-step-num {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 800;
    color: var(--c-primary);
    opacity: 0.3;
}

.flow-step-body h4 {
    font-family: var(--font-heading);
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 6px;
}

.flow-step-body p {
    font-size: 14px;
    color: var(--c-text-secondary);
    line-height: 1.6;
}

.flow-step-visual {
    display: flex;
    align-items: center;
    gap: 10px;
}

.flow-currency {
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    color: var(--c-text-secondary);
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.flow-currency--crypto {
    background: oklch(0.93 0.04 145 / 0.4);
    border-color: oklch(0.82 0.06 145 / 0.5);
    color: oklch(0.35 0.10 145);
}

.flow-currency--card {
    background: oklch(0.93 0.04 55 / 0.4);
    border-color: oklch(0.82 0.06 55 / 0.5);
    color: oklch(0.35 0.10 55);
}

.flow-currency--ai {
    background: oklch(0.93 0.04 280 / 0.3);
    border-color: oklch(0.82 0.06 280 / 0.4);
    color: oklch(0.40 0.10 280);
}

.flow-arrow {
    color: var(--c-text-muted);
    flex-shrink: 0;
}

.flow-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: var(--space-sm);
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    color: var(--c-primary);
    text-decoration: none;
    transition: gap var(--duration-fast) var(--ease-out);
}

.flow-link:hover {
    gap: 10px;
}

.flow-link::after {
    content: '\2192';
    font-size: 15px;
}

/* ===== HOW IT WORKS ===== */
.steps-section {
    background: var(--c-surface);
    border-top: 1px solid var(--c-border-subtle);
    border-bottom: 1px solid var(--c-border-subtle);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-xl);
    position: relative;
}

.steps-grid::before {
    content: '';
    position: absolute;
    top: 36px;
    left: 60px;
    right: 60px;
    height: 2px;
    background: var(--c-border);
    z-index: 0;
}

.step-item {
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--c-surface-raised);
    border: 2px solid var(--c-border);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--c-primary);
    transition: all var(--duration-normal) var(--ease-out);
}

.step-item:hover .step-number {
    background: var(--c-primary);
    color: var(--c-surface-raised);
    border-color: var(--c-primary);
    transform: scale(1.1);
}

.step-item h4 {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.step-item p {
    font-size: 14px;
    color: var(--c-text-secondary);
    line-height: 1.5;
}

/* ===== COMPARISON ===== */
.comparison-wrapper {
    margin-top: var(--space-xl);
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--c-surface-raised);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--c-border-subtle);
}

.comparison-table thead th {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    padding: var(--space-lg) var(--space-lg);
    text-align: center;
    border-bottom: 2px solid var(--c-border);
    background: var(--c-surface);
    white-space: nowrap;
}

.comparison-table thead th:first-child {
    text-align: left;
}

.comparison-table thead th.highlight {
    background: var(--c-primary-light);
    color: var(--c-primary);
}

.comparison-table tbody td {
    font-size: 14px;
    padding: var(--space-md) var(--space-xl);
    text-align: center;
    border-bottom: 1px solid var(--c-border-subtle);
    color: var(--c-text-secondary);
}

.comparison-table tbody td:first-child {
    text-align: left;
    font-weight: 600;
    color: var(--c-text);
    font-family: var(--font-heading);
}

.comparison-table tbody td.highlight {
    background: oklch(0.97 0.01 145 / 0.2);
    color: var(--c-text);
    font-weight: 500;
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

.tag-good {
    display: inline-block;
    background: oklch(0.92 0.04 145 / 0.5);
    color: oklch(0.35 0.10 145);
    font-size: 12px;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 100px;
}

.tag-bad {
    display: inline-block;
    background: oklch(0.92 0.04 30 / 0.4);
    color: oklch(0.45 0.12 30);
    font-size: 12px;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 100px;
}

.tag-neutral {
    display: inline-block;
    background: oklch(0.92 0.01 70);
    color: var(--c-text-muted);
    font-size: 12px;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 100px;
}

.compare-note {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    padding: var(--space-md) var(--space-lg);
    background: var(--c-surface);
    border: 1px solid var(--c-border-subtle);
    border-radius: var(--radius-md);
    font-size: 13px;
    color: var(--c-text-muted);
}

.compare-note svg {
    flex-shrink: 0;
    color: var(--c-text-muted);
}

/* ===== FAQ ===== */
.faq-list {
    margin-top: var(--space-xl);
    max-width: 760px;
}

.faq-item {
    border-bottom: 1px solid var(--c-border-subtle);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: var(--space-lg) 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 600;
    color: var(--c-text);
    transition: color var(--duration-fast) var(--ease-out);
}

.faq-question:hover {
    color: var(--c-primary);
}

.faq-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid var(--c-border);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--duration-normal) var(--ease-out);
    font-size: 14px;
    color: var(--c-text-muted);
}

.faq-item.open .faq-icon {
    background: var(--c-primary);
    color: var(--c-surface-raised);
    border-color: var(--c-primary);
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--duration-normal) var(--ease-out),
                padding var(--duration-normal) var(--ease-out);
}

.faq-item.open .faq-answer {
    max-height: 300px;
    padding-bottom: var(--space-lg);
}

.faq-answer p {
    font-size: 15px;
    color: var(--c-text-secondary);
    line-height: 1.7;
}

.faq-answer a {
    color: var(--c-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* ===== CTA SECTION ===== */
.cta-section {
    text-align: center;
    padding: var(--space-4xl) 0;
}

.cta-card {
    background: linear-gradient(135deg, oklch(0.35 0.08 55) 0%, oklch(0.25 0.10 50) 100%);
    border-radius: var(--radius-xl);
    padding: var(--space-3xl) var(--space-2xl);
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, oklch(0.5 0.06 60 / 0.2) 0%, transparent 60%);
    pointer-events: none;
}

.cta-card::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -5%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, oklch(0.5 0.06 80 / 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.cta-card h2 {
    font-family: var(--font-heading);
    font-size: clamp(24px, 3.5vw, 36px);
    font-weight: 700;
    color: oklch(0.95 0.01 70);
    margin-bottom: var(--space-md);
    position: relative;
    z-index: 1;
}

.cta-card p {
    font-size: 16px;
    color: oklch(0.75 0.02 70);
    margin-bottom: var(--space-xl);
    position: relative;
    z-index: 1;
}

.cta-card .btn-primary {
    background: oklch(0.95 0.01 70);
    color: oklch(0.25 0.08 55);
    box-shadow: 0 2px 12px oklch(0.95 0.01 70 / 0.3);
    position: relative;
    z-index: 1;
}

.cta-card .btn-primary:hover {
    background: oklch(1.0 0.002 70);
    box-shadow: 0 4px 20px oklch(0.95 0.01 70 / 0.4);
}

/* ===== FOOTER ===== */
.footer {
    border-top: 1px solid var(--c-border-subtle);
    padding: var(--space-2xl) 0;
    background: var(--c-surface);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-left p {
    font-size: 13px;
    color: var(--c-text-muted);
    margin-top: var(--space-sm);
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 800;
    color: var(--c-text);
    text-decoration: none;
}

.footer-logo span {
    color: var(--c-primary);
}

.footer-links {
    display: flex;
    gap: var(--space-xl);
    list-style: none;
}

.footer-links a {
    font-size: 14px;
    color: var(--c-text-secondary);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
}

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

/* ===== SCROLL ANIMATIONS ===== */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
}

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

.fade-up:nth-child(2) { transition-delay: 80ms; }
.fade-up:nth-child(3) { transition-delay: 160ms; }
.fade-up:nth-child(4) { transition-delay: 240ms; }
.fade-up:nth-child(5) { transition-delay: 320ms; }
.fade-up:nth-child(6) { transition-delay: 400ms; }
.fade-up:nth-child(7) { transition-delay: 480ms; }
.fade-up:nth-child(8) { transition-delay: 560ms; }

/* ===== MOBILE NAV ===== */
.mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--c-bg);
    z-index: 999;
    padding: var(--space-xl) var(--space-lg);
}

.mobile-menu.open {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.mobile-menu a {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 600;
    color: var(--c-text);
    text-decoration: none;
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--c-border-subtle);
    display: block;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .hero-visual {
        order: -1;
    }

    .card-mockup {
        transform: perspective(800px) rotateY(-4deg) rotateX(2deg);
        width: 340px;
        height: 210px;
    }
}

@media (max-width: 768px) {
    .section { padding: var(--space-3xl) 0; }
    .nav-links { display: none; }
    .nav-mobile-toggle { display: block; }

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

    .flow-step {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .flow-step-visual {
        justify-content: center;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .steps-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-xl);
    }

    .steps-grid::before {
        display: none;
    }

    .hero { padding-top: 120px; }
    .hero-title { font-size: 32px; }

    .comparison-table {
        font-size: 13px;
    }

    .comparison-table thead th,
    .comparison-table tbody td {
        padding: var(--space-md) var(--space-md);
    }

    .footer-inner {
        flex-direction: column;
        gap: var(--space-lg);
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-primary, .btn-secondary {
        text-align: center;
        justify-content: center;
    }

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

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

    .card-mockup {
        width: 300px;
        height: 190px;
        padding: 24px;
    }

    .card-number { font-size: 15px; }
}