/* ===== CSS Variables ===== */
:root {
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --primary-light: #4a9af5;
    --primary-bg: #e8f0fe;
    --green: #0d9488;
    --green-light: #ccfbf1;
    --purple: #7c3aed;
    --purple-light: #ede9fe;
    --orange: #ea580c;
    --orange-light: #fff7ed;
    --dark: #0f172a;
    --dark-2: #1e293b;
    --gray-900: #111827;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --gray-50: #f9fafb;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --shadow-glow: 0 0 40px rgba(26,115,232,0.15);
    --radius-sm: 6px;
    --radius: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--gray-800);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input { font-family: inherit; }

/* ===== Utilities ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 60px; }
.section-tag {
    display: inline-block;
    padding: 4px 16px;
    background: var(--primary-bg);
    color: var(--primary);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
}
.section-title {
    font-size: 36px;
    font-weight: 800;
    color: var(--dark);
    line-height: 1.3;
    margin-bottom: 16px;
}
.section-desc {
    font-size: 18px;
    color: var(--gray-500);
    line-height: 1.6;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    cursor: pointer;
    white-space: nowrap;
}
.btn-sm { padding: 8px 20px; font-size: 14px; }
.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-block { display: flex; justify-content: center; width: 100%; }
.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 2px 8px rgba(26,115,232,0.3);
}
.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 16px rgba(26,115,232,0.4);
    transform: translateY(-1px);
}
.btn-outline {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}
.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}
.btn-ghost {
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.3);
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(4px);
}
.btn-ghost:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.5);
}
.btn-white {
    background: var(--white);
    color: var(--primary);
    font-weight: 700;
}
.btn-white:hover {
    background: var(--gray-100);
    transform: translateY(-1px);
}
.btn-ghost-white {
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.4);
}
.btn-ghost-white:hover {
    background: rgba(255,255,255,0.15);
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
}
.navbar.scrolled {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-md);
    padding: 10px 0;
}
.nav-container { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 22px; }
.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 800;
}
.logo-text { color: var(--white); font-size: 20px; }
.navbar.scrolled .logo-text { color: var(--dark); }
.logo-highlight { color: var(--primary-light); font-weight: 900; }
.navbar.scrolled .logo-highlight { color: var(--primary); }
.logo-cn {
    font-size: 14px;
    margin-left: 4px;
    opacity: 0.8;
    font-weight: 500;
}
.nav-links { display: flex; gap: 32px; }
.nav-links a {
    color: rgba(255,255,255,0.85);
    font-size: 15px;
    font-weight: 500;
}
.nav-links a:hover { color: var(--white); }
.navbar.scrolled .nav-links a { color: var(--gray-600); }
.navbar.scrolled .nav-links a:hover { color: var(--primary); }
.nav-actions { display: flex; gap: 12px; }
.nav-actions .btn-outline {
    border-color: rgba(255,255,255,0.4);
    color: var(--white);
}
.navbar.scrolled .nav-actions .btn-outline {
    border-color: var(--primary);
    color: var(--primary);
}
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}
.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}
.navbar.scrolled .mobile-toggle span { background: var(--dark); }

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
}
.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(26,115,232,0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(124,58,237,0.1) 0%, transparent 50%);
}
.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}
.hero-container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding-top: 80px;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(26,115,232,0.2);
    border: 1px solid rgba(26,115,232,0.3);
    border-radius: 20px;
    color: var(--primary-light);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
}
.hero-title {
    font-size: 56px;
    font-weight: 900;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 20px;
}
.text-gradient {
    background: linear-gradient(135deg, #4a9af5, #818cf8, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    font-size: 18px;
    color: rgba(255,255,255,0.7);
    line-height: 1.7;
    margin-bottom: 32px;
}
.hero-cta { display: flex; gap: 16px; margin-bottom: 40px; flex-wrap: wrap; }
.hero-platforms { display: flex; flex-direction: column; gap: 12px; }
.platforms-label { color: rgba(255,255,255,0.5); font-size: 14px; }
.platforms-list { display: flex; flex-wrap: wrap; gap: 8px; }
.platform-tag {
    padding: 4px 12px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 6px;
    color: rgba(255,255,255,0.75);
    font-size: 13px;
    font-weight: 500;
}
.hero-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.stat-card {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-md);
    padding: 28px;
    text-align: center;
    backdrop-filter: blur(8px);
    transition: var(--transition);
}
.stat-card:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(26,115,232,0.3);
    transform: translateY(-4px);
}
.stat-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--white);
    display: inline;
}
.stat-plus, .stat-unit {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-light);
}
.stat-label {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    margin-top: 8px;
}
.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}
.hero-scroll a {
    color: rgba(255,255,255,0.4);
    font-size: 20px;
    animation: bounce 2s infinite;
}
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

/* ===== GEO Intro Section ===== */
.geo-intro { background: var(--white); padding: 80px 0; }
.geo-intro-content {
    max-width: 900px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--primary-bg), #f0f4ff);
    border-radius: var(--radius-xl);
    padding: 48px;
    border: 1px solid rgba(26,115,232,0.1);
}
.geo-intro-content h2 {
    font-size: 28px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 20px;
    text-align: center;
}
.geo-intro-content p {
    font-size: 16px;
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: 16px;
}
.geo-intro-content p:last-child { margin-bottom: 0; }
.geo-intro-content strong { color: var(--primary-dark); }

/* ===== Why GEO Section ===== */
.why-geo { background: var(--gray-50); }
.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 60px;
}
.trend-stat {
    text-align: center;
    padding: 32px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
}
.trend-number {
    font-size: 56px;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
}
.trend-unit { font-size: 28px; }
.trend-label {
    font-size: 16px;
    color: var(--gray-700);
    margin-top: 8px;
    font-weight: 600;
}
.trend-source {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 4px;
}
.comparison-table {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.comparison-title {
    padding: 24px 32px;
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    border-bottom: 1px solid var(--gray-200);
}
.table-wrapper { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td {
    padding: 16px 32px;
    text-align: left;
    font-size: 15px;
}
th {
    background: var(--gray-50);
    font-weight: 700;
    color: var(--gray-700);
    border-bottom: 2px solid var(--gray-200);
}
td { border-bottom: 1px solid var(--gray-100); }
tr:last-child td { border-bottom: none; }
.highlight-col {
    background: rgba(26,115,232,0.04);
    color: var(--primary);
    font-weight: 600;
}
th.highlight-col {
    background: var(--primary);
    color: var(--white);
}

/* ===== Diagnosis Section ===== */
.diagnosis { background: var(--white); }
.diagnosis-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    background: linear-gradient(135deg, #0f172a, #1e3a5f);
    border-radius: var(--radius-xl);
    padding: 60px;
    color: var(--white);
}
.diagnosis-content h2 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 12px;
}
.diagnosis-content p {
    color: rgba(255,255,255,0.7);
    margin-bottom: 32px;
    font-size: 16px;
}
.diagnosis-form { margin-bottom: 16px; }
.input-group {
    display: flex;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 12px;
}
.input-group i {
    padding: 0 16px;
    display: flex;
    align-items: center;
    color: rgba(255,255,255,0.5);
}
.input-group input {
    flex: 1;
    padding: 16px 0;
    background: transparent;
    border: none;
    outline: none;
    color: var(--white);
    font-size: 15px;
}
.input-group input::placeholder { color: rgba(255,255,255,0.4); }
.input-group .btn {
    border-radius: 0;
    padding: 16px 28px;
}
.diagnosis-note {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
    display: flex;
    align-items: center;
    gap: 8px;
}
.diagnosis-visual { display: flex; justify-content: center; }
.diagnosis-mockup {
    width: 100%;
    max-width: 380px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-md);
    overflow: hidden;
    backdrop-filter: blur(8px);
}
.mockup-header {
    padding: 12px 16px;
    background: rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: rgba(255,255,255,0.7);
}
.mockup-dots { display: flex; gap: 6px; }
.mockup-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
}
.mockup-dots span:first-child { background: #ff5f57; }
.mockup-dots span:nth-child(2) { background: #ffbd2e; }
.mockup-dots span:last-child { background: #28ca41; }
.mockup-body { padding: 24px; }
.mockup-score { text-align: center; margin-bottom: 24px; }
.score-circle {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 4px solid var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-size: 36px;
    font-weight: 800;
    color: var(--white);
}
.score-label { font-size: 14px; color: rgba(255,255,255,0.6); }
.mockup-bars { display: flex; flex-direction: column; gap: 12px; }
.bar-item { display: flex; align-items: center; gap: 12px; }
.bar-label {
    width: 70px;
    font-size: 12px;
    color: rgba(255,255,255,0.6);
    flex-shrink: 0;
}
.bar {
    flex: 1;
    height: 8px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    overflow: hidden;
}
.bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 4px;
    transition: width 1.5s ease;
}

/* ===== Features Section ===== */
.features { background: var(--gray-50); }
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.feature-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}
.feature-card:hover {
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-bg);
    transform: translateY(-4px);
}
.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-bg);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 20px;
}
.feature-icon.icon-green { background: var(--green-light); color: var(--green); }
.feature-icon.icon-purple { background: var(--purple-light); color: var(--purple); }
.feature-icon.icon-orange { background: var(--orange-light); color: var(--orange); }
.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}
.feature-card > p {
    color: var(--gray-500);
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 20px;
}
.feature-list { margin-bottom: 20px; }
.feature-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 14px;
    color: var(--gray-600);
}
.feature-list li i { color: var(--green); font-size: 12px; }
.feature-link {
    color: var(--primary);
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.feature-link:hover { gap: 10px; }

/* ===== How It Works ===== */
.how-it-works { background: var(--white); }
.steps-wrapper { position: relative; margin-bottom: 48px; }
.steps-line {
    position: absolute;
    top: 60px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-bg), var(--primary), var(--primary-bg));
    z-index: 0;
}
.steps-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
    position: relative;
    z-index: 1;
}
.step-card {
    text-align: center;
    padding: 24px 12px;
}
.step-number {
    font-size: 12px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 16px;
}
.step-icon {
    width: 64px;
    height: 64px;
    background: var(--white);
    border: 2px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--primary);
    margin: 0 auto 16px;
    box-shadow: var(--shadow-glow);
    transition: var(--transition);
}
.step-card:hover .step-icon {
    background: var(--primary);
    color: var(--white);
}
.step-card h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}
.step-card p {
    font-size: 13px;
    color: var(--gray-500);
    line-height: 1.5;
}
.steps-cta { text-align: center; }

/* ===== Cases Section ===== */
.cases { background: var(--gray-50); }
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.case-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}
.case-card:hover {
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-bg);
    transform: translateY(-4px);
}
.case-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}
.case-industry {
    padding: 4px 12px;
    background: var(--primary-bg);
    color: var(--primary);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}
.case-metric { text-align: right; }
.metric-value {
    font-size: 32px;
    font-weight: 900;
    color: var(--green);
    display: block;
    line-height: 1;
}
.metric-label {
    font-size: 12px;
    color: var(--gray-500);
}
.case-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}
.case-card > p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 20px;
}
.case-details {
    display: flex;
    gap: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--gray-200);
    margin-bottom: 16px;
}
.detail-item span {
    display: block;
    font-size: 12px;
    color: var(--gray-400);
}
.detail-item strong {
    font-size: 14px;
    color: var(--dark);
}
.case-link {
    color: var(--primary);
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.case-link:hover { gap: 10px; }

/* ===== Industries ===== */
.industries { background: var(--white); }
.industries-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}
.industry-tag {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 500;
    color: var(--gray-700);
    transition: var(--transition);
}
.industry-tag:hover {
    background: var(--primary-bg);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

/* ===== Why Us ===== */
.why-us { background: var(--gray-50); }
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.advantage-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}
.advantage-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.advantage-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary);
    margin: 0 auto 20px;
}
.advantage-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}
.advantage-card p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.6;
}

/* ===== Pricing ===== */
.pricing { background: var(--white); }
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
}
.pricing-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow);
    border: 2px solid var(--gray-200);
    transition: var(--transition);
    position: relative;
}
.pricing-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.pricing-featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    transform: scale(1.05);
}
.pricing-featured:hover { transform: scale(1.05) translateY(-4px); }
.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--white);
    padding: 4px 20px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
}
.pricing-header {
    text-align: center;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: 24px;
}
.pricing-header h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
}
.pricing-price {
    margin-bottom: 8px;
}
.price-currency {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-600);
    vertical-align: top;
}
.price-amount {
    font-size: 56px;
    font-weight: 900;
    color: var(--dark);
    line-height: 1;
}
.price-period {
    font-size: 16px;
    color: var(--gray-500);
}
.pricing-header p {
    font-size: 14px;
    color: var(--gray-500);
}
.pricing-features { margin-bottom: 28px; }
.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 14px;
    color: var(--gray-700);
}
.pricing-features li i.fa-check { color: var(--green); }
.pricing-features li i.fa-times { color: var(--gray-300); }
.pricing-features li.disabled { color: var(--gray-400); }

/* ===== FAQ ===== */
.faq { background: var(--gray-50); }
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    background: var(--white);
    border-radius: var(--radius);
    margin-bottom: 12px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    text-align: left;
    transition: var(--transition);
}
.faq-question i {
    transition: transform 0.3s ease;
    color: var(--gray-400);
}
.faq-item.active .faq-question i { transform: rotate(180deg); color: var(--primary); }
.faq-item.active .faq-question { color: var(--primary); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.active .faq-answer {
    max-height: 300px;
}
.faq-answer p {
    padding: 0 24px 20px;
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===== CTA Section ===== */
.cta-section {
    background: linear-gradient(135deg, #0f172a, #1e3a5f);
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(26,115,232,0.2) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 30%, rgba(124,58,237,0.15) 0%, transparent 50%);
}
.cta-card {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
}
.cta-card h2 {
    font-size: 40px;
    font-weight: 900;
    margin-bottom: 16px;
}
.cta-card p {
    font-size: 18px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 40px;
}
.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}
.cta-contact {
    display: flex;
    justify-content: center;
    gap: 32px;
    color: rgba(255,255,255,0.6);
    font-size: 14px;
}
.cta-contact i { margin-right: 8px; }

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
}
.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    margin-top: 16px;
    margin-bottom: 20px;
}
.footer-social { display: flex; gap: 12px; }
.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--transition);
}
.footer-social a:hover {
    background: var(--primary);
    color: var(--white);
}
.footer-links h4 {
    color: var(--white);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
}
.footer-links li { margin-bottom: 12px; }
.footer-links a {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
}
.footer-links a:hover { color: var(--white); }
.footer-bottom {
    padding: 24px 0;
    border-top: 1px solid rgba(255,255,255,0.08);
    text-align: center;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
}

/* ===== Animations ===== */
.animate-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.animate-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-container { grid-template-columns: 1fr; text-align: center; }
    .hero-title { font-size: 42px; }
    .hero-cta { justify-content: center; }
    .hero-platforms { align-items: center; }
    .hero-stats { max-width: 500px; margin: 0 auto; }
    .features-grid { grid-template-columns: 1fr; }
    .diagnosis-card { grid-template-columns: 1fr; }
    .diagnosis-visual { display: none; }
    .cases-grid { grid-template-columns: 1fr; }
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .pricing-featured { transform: none; }
    .pricing-featured:hover { transform: translateY(-4px); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .steps-grid { grid-template-columns: repeat(3, 1fr); }
    .steps-line { display: none; }
}

@media (max-width: 768px) {
    .section { padding: 60px 0; }
    .section-title { font-size: 28px; }
    .section-desc { font-size: 16px; }
    .nav-links { display: none; }
    .nav-actions { display: none; }
    .mobile-toggle { display: flex; }
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        padding: 24px;
        box-shadow: var(--shadow-lg);
        gap: 16px;
    }
    .navbar.scrolled .nav-links.active a { color: var(--gray-700); }
    .nav-actions.active {
        display: flex;
        position: absolute;
        top: calc(100% + 200px);
        left: 0;
        right: 0;
        background: var(--white);
        padding: 16px 24px;
        box-shadow: var(--shadow-lg);
        justify-content: center;
    }
    .hero-title { font-size: 32px; }
    .hero-subtitle { font-size: 16px; }
    .hero-stats { grid-template-columns: 1fr 1fr; }
    .stat-number { font-size: 36px; }
    .stats-row { grid-template-columns: 1fr; }
    .trend-number { font-size: 40px; }
    .comparison-table th, .comparison-table td { padding: 12px 16px; font-size: 13px; }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .advantages-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .cta-card h2 { font-size: 28px; }
    .cta-actions { flex-direction: column; align-items: center; }
    .cta-contact { flex-direction: column; gap: 12px; }
    .diagnosis-card { padding: 32px 20px; }
    .input-group { flex-direction: column; }
    .input-group .btn { border-radius: 0 0 var(--radius) var(--radius); }
}

@media (max-width: 480px) {
    .hero-title { font-size: 26px; }
    .hero-cta { flex-direction: column; align-items: center; }
    .hero-cta .btn { width: 100%; justify-content: center; }
    .platforms-list { justify-content: center; }
}