/* ===== CSS Variables ===== */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-color: #0ea5e9;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
    --gradient-dark: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s ease;
}

/* ===== Reset & Base Styles ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

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

/* ===== Typography ===== */
.highlight {
    color: var(--primary-color);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 24px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Header & Navigation ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    box-shadow: var(--shadow-md);
    border-bottom-color: var(--border-color);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-slogan {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
    line-height: 1.4;
    margin-top: 7px;
}

.logo-icon {
    height: 32px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-cta {
    background: var(--gradient-primary);
    color: white !important;
    padding: 10px 20px !important;
    border-radius: var(--radius-sm);
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    height: 700px;
    display: flex;
    align-items: center;
    padding-top: 72px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 50%, #f0fdfa 100%);
}

.hero-bg-animation {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.hero-bg-animation::before {
    content: '';
    position: absolute;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    animation: float 20s ease-in-out infinite;
}

.hero-bg-animation::after {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.06) 0%, transparent 70%);
    bottom: -150px;
    left: -150px;
    animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    33% { transform: translate(30px, -30px); }
    66% { transform: translate(-20px, 20px); }
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    z-index: 1;
    margin: 0 auto;
}

.hero-text {
    animation: fadeInUp 0.8s ease;
    width: 100%;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(6, 182, 212, 0.1));
    border-radius: 9999px;
    font-size: 17.6px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 24px;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.badge-icon {
    font-size: 16px;
}

.hero-title {
    font-size: 49.6px;
    font-weight: 700;
    line-height: 2;
    margin-bottom: 32px;
    margin-top: 50px;
    letter-spacing: -0.01em;
}

.hero-title p {
    margin-bottom: 0;
}

.price-highlight {
    display: inline-block;
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    color: #92400e;
    font-weight: 700;
    font-size: 28.8px;
}

.highlight-tag {
    display: inline-block;
    position: relative;
    color: #dc2626;
    font-weight: 700;
}

.highlight-tag::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 8px;
    background: rgba(220, 38, 38, 0.15);
    border-radius: 2px;
    z-index: -1;
}

.highlight-action {
    display: inline-block;
    color: #059669;
    font-weight: 700;
    text-decoration: underline;
    text-decoration-color: rgba(5, 150, 105, 0.3);
    text-decoration-thickness: 3px;
    text-underline-offset: 4px;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 20px;
}

.stat-item {
    text-align: center;
    flex: 1;
}

.stat-number {
    font-size: 32px;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 16px;
    color: var(--text-secondary);
}

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

/* ===== Data Value Section ===== */
.data-value-section {
    padding: 60px 0;
    background: var(--bg-primary);
}

.value-comparison {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 24px;
    align-items: stretch;
}

.comparison-side {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    border: 2px solid var(--border-color);
    transition: var(--transition);
}

.comparison-side:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.good-side {
    border-color: rgba(16, 185, 129, 0.3);
    background: linear-gradient(135deg, #f0fdf4, white);
}

.bad-side {
    border-color: rgba(239, 68, 68, 0.25);
    background: linear-gradient(135deg, #fef2f2, white);
}

.side-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border-color);
}

.side-icon {
    font-size: 25.6px;
    flex-shrink: 0;
}

.side-header h3 {
    font-size: 20px;
    font-weight: 700;
}

.good-side .side-header h3 {
    color: #059669;
}

.bad-side .side-header h3 {
    color: #dc2626;
}

.side-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-bottom: 24px;
}

.side-list li {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.list-icon {
    font-size: 20.8px;
    flex-shrink: 0;
    margin-top: 2px;
}

.list-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.list-content strong {
    font-size: 16px;
    color: var(--text-primary);
}

.list-content span {
    font-size: 14.4px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.side-result {
    text-align: center;
    padding: 14px 20px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 16.8px;
}

.good-result {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
}

.bad-result {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
}

.vs-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    font-size: 16px;
    font-weight: 800;
    color: var(--text-light);
    align-self: center;
    flex-shrink: 0;
}

.data-value-conclusion {
    text-align: center;
    margin-top: 48px;
    padding: 28px 40px;
    background: linear-gradient(135deg, #1e293b, #334155);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.data-value-conclusion p {
    font-size: 19.2px;
    line-height: 1.8;
    color: white;
    text-align: center;
}

.conclusion-icon {
    font-size: 24px;
    margin-right: 6px;
    flex-shrink: 0;
}

.data-value-conclusion strong {
    color: #60a5fa;
}

@media (max-width: 768px) {
    .data-value-section {
        padding: 60px 0;
    }
    
    .comparison-side {
        padding: 24px 20px;
    }
    
    .side-header h3 {
        font-size: 17.6px;
    }
}

/* ===== No Platform Section ===== */
.no-platform-section {
    padding: 60px 0;
    background: var(--bg-secondary);
}

.reason-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 48px;
}

.reason-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    border: 2px solid var(--border-color);
    transition: var(--transition);
    position: relative;
}

.reason-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(239, 68, 68, 0.3);
}

.reason-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
    font-size: 17.6px;
    font-weight: 700;
    width: 70px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    box-shadow: var(--shadow-md);
}

.reason-icon {
    font-size: 25.6px;
    vertical-align: middle;
    margin-right: 8px;
}

.reason-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
    margin-top: 10px;
    padding-right: 20px;
    display: inline-flex;
    align-items: center;
}

.reason-card p {
    font-size: 15.2px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 18px;
}

.reason-card p strong {
    color: #dc2626;
}

.reason-example {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    border-left: 3px solid #ef4444;
    padding: 12px 16px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 14.08px;
    color: #991b1b;
    line-height: 1.6;
}

.example-icon {
    font-size: 17.6px;
    flex-shrink: 0;
}

.platform-summary {
    padding: 28px 40px;
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    color: white;
}

.platform-summary p,
.platform-summary span {
    font-size: 19.2px;
    line-height: 1.8;
    color: white;
}

.platform-summary strong {
    color: white;
}

.summary-icon {
    font-size: 24px;
    margin-right: 10px;
}

@media (max-width: 900px) {
    .reason-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .no-platform-section {
        padding: 60px 0;
    }
    
    .reason-card {
        padding: 28px 24px;
    }
    
    .platform-summary p {
        font-size: 16.8px;
    }
    
    .plan-summary p {
        font-size: 16.8px;
    }
}

/* ===== Service Plans Section ===== */
.service-plans-section {
    padding: 60px 0;
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 48px;
}

.plan-card {
    background: white;
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
}

.plan-service-tag {
    text-align: center;
    background: var(--gradient-primary);
    color: white;
    font-size: 15px;
    font-weight: 700;
    padding: 8px 24px;
    border-radius: 10px;
    letter-spacing: 2px;
    margin: 10px auto;
    display: inline-block;
    width: 100px;
    box-sizing: border-box;
}

.plan-service-tag.service-two {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.plan-service-tag.service-three {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.plan-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.plan-card-header {
    padding: 12px 24px 20px;
    text-align: center;
    border-bottom: 1px solid var(--bg-tertiary);
    position: relative;
}

.plan-card-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.plan-card-subtitle {
    font-size: 14.4px;
    color: var(--text-secondary);
}

.plan-card-body {
    padding: 24px;
    flex: 1;
}

.plan-card-desc {
    font-size: 14.4px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 18px;
}

.plan-card-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.plan-card-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 16px;
    color: var(--text-primary);
    line-height: 1.5;
}

.feature-icon {
    font-size: 16px;
    flex-shrink: 0;
    margin-top: 1px;
}

.plan-card-features strong {
    color: var(--primary-color);
}

.plan-card-price {
    background: var(--bg-secondary);
    padding: 20px 24px;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.price-label {
    font-size: 12.8px;
    color: var(--text-light);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.price-value {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.price-num {
    font-size: 28.8px;
    color: var(--primary-color);
}

.plan-card-use {
    padding: 14px 24px;
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    font-size: 16px;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
}

.use-label {
    color: #166534;
}

@media (max-width: 1024px) {
    .plans-grid {
        grid-template-columns: 1fr;
        max-width: 520px;
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 768px) {
    .service-plans-section {
        padding: 60px 0;
    }
    
    .plans-grid {
        gap: 24px;
    }

    .plan-card-header {
        padding: 24px 20px 16px;
    }

    .plan-card-body {
        padding: 20px;
    }
}

/* 方案总结 */
.plan-summary {
    padding: 28px 40px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    color: white;
}

.plan-summary p,
.plan-summary span {
    font-size: 19.2px;
    line-height: 1.8;
    color: white;
}

.plan-summary strong {
    color: white;
}

.plan-icon {
    font-size: 24px;
    margin-right: 10px;
}

/* ===== Process Section ===== */
.process-section {
    padding: 60px 0;
    background: var(--bg-secondary);
}

.process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.step-card {
    flex: 1;
    min-width: 200px;
    max-width: 240px;
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.step-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

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

.step-title {
    font-size: 18.4px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

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

.step-arrow {
    font-size: 32px;
    font-weight: bold;
    color: var(--primary-light);
    flex-shrink: 0;
}

/* ===== Testimonials Section ===== */
.testimonials-section {
    padding: 60px 0;
    background: var(--bg-primary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 28px;
}

.testimonial-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.stars {
    color: #fbbf24;
    font-size: 20px;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 15.2px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.author-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.author-company {
    font-size: 13.6px;
    color: var(--text-light);
}

/* ===== CTA / Contact Section ===== */
.cta-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: white;
}

.cta-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.cta-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.cta-subtitle {
    font-size: 18.4px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 56px;
}

.contact-grid {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
}

.wechat-card {
    background: linear-gradient(145deg, rgba(37, 99, 235, 0.2), rgba(6, 182, 212, 0.1));
    border: 1px solid rgba(37, 99, 235, 0.35);
    padding: 40px 36px;
    text-align: center;
}

.card-desc {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15.2px;
    margin-bottom: 28px;
}

.qr-code-placeholder {
    background: white;
    border-radius: var(--radius-lg);
    width: 200px;
    height: 200px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    overflow: hidden;
}

.phone-number {
    display: block;
    font-size: 26.4px;
    font-weight: 800;
    color: var(--accent-color);
    margin: 16px 0 12px;
    letter-spacing: 1px;
    transition: var(--transition);
}

.phone-number:hover {
    color: #22d3ee;
    transform: scale(1.03);
}

.call-btn {
    display: none;
}

/* ===== Footer ===== */
.footer {
    background: var(--gradient-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 64px 0 32px;
}

.footer-grid {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 12px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 24px;
}

.footer-brand .logo {
    margin-bottom: 0;
}

.footer-brand .logo .highlight {
    color: var(--accent-color);
}

.footer-desc {
    font-size: 14.4px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.6);
}

.footer-copyright {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.35);
}

/* ===== Responsive Design ===== */
/* 移动端 (≤768px) */
@media (max-width: 768px) {
    .section-header {
        margin-bottom: 40px;
    }

    .section-title {
        font-size: 21px;
    }

    .section-subtitle {
        font-size: 17px;
    }

    /* 导航栏 */
    .navbar {
        height: 60px;
    }

    .logo {
        font-size: 17px;
    }

    .logo-icon {
        height: 28px;
    }

    .logo-slogan {
        display: block;
        font-size: 13.5px;
        margin-top: 5px;
    }

    .nav-menu {
        display: none;
    }

    .mobile-menu-btn {
        display: none;
    }

    /* Hero 区域 */
    .hero {
        height: auto;
        min-height: auto;
        padding: 100px 0 50px;
    }

    .hero-title {
        font-size: 22px;
        line-height: 1.6;
        margin-top: 30px;
        margin-bottom: 24px;
    }

    .hero-title p {
        margin-bottom: 12px;
    }

    .price-highlight {
        font-size: 20px;
        padding: 6px 16px;
    }

    .badge {
        font-size: 13px;
        padding: 8px 16px;
        margin-bottom: 20px;
    }

    .hero-stats {
        flex-direction: row;
        gap: 16px;
    }

    .stat-item {
        flex: 1;
    }

    .stat-divider {
        display: block;
        width: 1px;
        height: 40px;
    }

    .stat-number {
        font-size: 22px;
    }

    .stat-label {
        font-size: 14px;
    }

    /* 数据对比区 */
    .data-value-section {
        padding: 50px 0;
    }

    .value-comparison {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .vs-badge {
        width: 48px;
        height: 48px;
        margin: 16px auto 16px;
        position: relative;
        z-index: 10;
    }

    .comparison-side {
        padding: 20px 16px;
    }

    .side-header {
        gap: 8px;
        margin-bottom: 18px;
        padding-bottom: 14px;
    }

    .side-icon {
        font-size: 26px;
    }

    .side-header h3 {
        font-size: 20px;
    }

    .side-list {
        gap: 16px;
        margin-bottom: 18px;
    }

    .side-list li {
        gap: 12px;
    }

    .list-icon {
        font-size: 22px;
    }

    .list-content strong {
        font-size: 17px;
    }

    .list-content span {
        font-size: 15px;
    }

    .side-result {
        font-size: 15px;
        padding: 12px 16px;
    }

    .data-value-conclusion {
        margin-top: 32px;
        padding: 20px 20px;
    }

    .data-value-conclusion p {
        font-size: 18px;
        line-height: 1.7;
        text-align: left;
    }

    .conclusion-icon {
        font-size: 20px;
    }

    /* 没必要买平台区 */
    .no-platform-section {
        padding: 50px 0;
    }

    .reason-card {
        padding: 24px 20px;
    }

    .reason-card h3 {
        font-size: 20px;
        margin-top: 10px;
        margin-bottom: 4px;
    }

    .reason-icon {
        font-size: 28px;
    }

    .reason-card p {
        font-size: 16px;
        line-height: 1.7;
    }

    .reason-example {
        font-size: 16px;
        padding: 12px 14px;
    }

    .example-icon {
        font-size: 22px;
    }

    .reason-number {
        width: 72px;
        height: 52px;
        font-size: 18px;
        top: -18px;
    }

    .platform-summary {
        padding: 20px 20px;
    }

    .platform-summary p,
    .platform-summary span {
        font-size: 18px;
        line-height: 1.7;
    }

    .summary-icon {
        font-size: 26px;
    }

    /* 服务方案区 */
    .service-plans-section {
        padding: 50px 0;
    }

    .plans-grid {
        gap: 20px;
    }

    .plan-card-header {
        padding: 16px 16px 14px;
    }

    .plan-card-title {
        font-size: 22px;
    }

    .plan-card-subtitle {
        font-size: 16px;
    }

    .plan-card-body {
        padding: 18px 16px;
    }

    .plan-card-desc {
        font-size: 17px;
        margin-bottom: 14px;
    }

    .plan-card-features li {
        font-size: 17px;
        gap: 10px;
    }

    .plan-card-price {
        padding: 14px 16px;
    }

    .price-label {
        font-size: 14px;
    }

    .price-value {
        font-size: 24px;
    }

    .price-num {
        font-size: 28px;
    }

    .plan-card-use {
        padding: 14px 16px;
        font-size: 16px;
    }

    .plan-summary {
        padding: 20px 20px;
    }

    .plan-summary p,
    .plan-summary span {
        font-size: 19px;
        line-height: 1.7;
    }

    .plan-icon {
        font-size: 26px;
    }

    /* 使用流程区 */
    .process-section {
        padding: 50px 0;
    }

    .process-steps {
        flex-direction: column;
    }

    .step-arrow {
        transform: rotate(90deg);
    }

    .step-card {
        max-width: 100%;
        padding: 24px 20px;
    }

    .step-icon {
        font-size: 32px;
        margin-bottom: 12px;
    }

    .step-title {
        font-size: 16px;
    }

    .step-desc {
        font-size: 13px;
    }

    /* 客户评价区 */
    .testimonials-section {
        padding: 50px 0;
    }

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

    .testimonial-card {
        padding: 24px 20px;
    }

    .testimonial-text {
        font-size: 14px;
        line-height: 1.7;
        margin-bottom: 18px;
    }

    /* CTA 联系区 */
    .cta-section {
        padding: 50px 0;
    }

    .cta-title {
        font-size: 21px;
    }

    .cta-subtitle {
        font-size: 15px;
        margin-bottom: 36px;
    }

    .wechat-card {
        padding: 28px 20px;
    }

    .card-desc {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .qr-code-placeholder {
        width: 160px;
        height: 160px;
    }

    .phone-number {
        font-size: 22px;
    }

    .call-btn {
        display: inline-block;
        background: var(--gradient-primary);
        color: white;
        font-size: 18px;
        font-weight: 700;
        padding: 4px 12px;
        border-radius: var(--radius-md);
        margin-top: 8px;
        letter-spacing: 2px;
    }

    .call-btn:active {
        transform: scale(0.97);
    }

    /* Footer */
    .footer {
        padding: 40px 0 24px;
    }

    .footer-grid {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-brand {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .footer-desc {
        font-size: 13px;
    }

    .contact-grid {
        gap: 20px;
    }
}