/* ===== VARIABLES ===== */
:root {
    /* Colors */
    --primary-blue: #0056b3;
    --primary-blue-dark: #003d82;
    --primary-blue-light: #e8f1ff;
    
    --accent-teal: #00a8a8;
    --accent-teal-light: #e6f7f7;
    
    --accent-orange: #ff6b35;
    --accent-orange-light: #ffe8e0;
    
    --neutral-dark: #2d3748;
    --neutral-gray: #4a5568;
    --neutral-light: #f8f9fa;
    --neutral-border: #e2e8f0;
    
    --success-green: #38a169;
    --warning-amber: #d69e2e;
    --error-red: #e53e3e;
    
    /* Typography */
    --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Account for fixed header */
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--neutral-gray);
    background: white;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--neutral-dark);
    line-height: 1.3;
    margin-bottom: var(--space-md);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--space-md);
}

a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--primary-blue-dark);
}

/* ===== ALERT BAR ===== */
.alert-bar {
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--accent-teal) 100%);
    color: white;
    padding: 0.75rem 0;
    text-align: center;
    font-size: 0.9rem;
    position: relative;
    z-index: 1001;
}

.alert-bar .container {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.alert-bar strong {
    font-weight: 600;
}

.alert-bar a {
    color: white;
    text-decoration: underline;
    font-weight: 600;
    transition: opacity 0.2s;
}

.alert-bar a:hover {
    opacity: 0.9;
}

/* ===== HEADER & NAVIGATION ===== */
header {
    background: white;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--neutral-border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    position: relative;
}

.logo-area {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: var(--space-sm);
}

.logo-img {
    height: 50px;
    width: auto;
    display: block;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1.2;
}

.logo-slogan {
    font-size: 0.85rem;
    color: var(--neutral-gray);
    font-style: italic;
    margin-top: 0.25rem;
    max-width: 300px;
}

/* Primary Navigation */
.primary-navigation ul {
    display: flex;
    list-style: none;
    gap: var(--space-md);
    align-items: center;
    margin: 0;
    padding: 0;
}

.primary-navigation a {
    text-decoration: none;
    color: var(--neutral-dark);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.2s;
    white-space: nowrap;
}

.primary-navigation a:hover {
    color: var(--primary-blue);
}

.primary-navigation a.active {
    color: var(--primary-blue);
    font-weight: 600;
}

.primary-navigation a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-blue);
    border-radius: 1px;
}

/* Mobile Navigation Toggle */
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 30px;
    position: relative;
    z-index: 1001;
    padding: 0;
}

.mobile-nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--neutral-dark);
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    transition: all 0.3s ease;
}

.mobile-nav-toggle span::before,
.mobile-nav-toggle span::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: var(--neutral-dark);
    left: 0;
    transition: all 0.3s ease;
}

.mobile-nav-toggle span::before {
    top: -8px;
}

.mobile-nav-toggle span::after {
    bottom: -8px;
}

.mobile-nav-toggle[aria-expanded="true"] span {
    background: transparent;
}

.mobile-nav-toggle[aria-expanded="true"] span::before {
    transform: rotate(45deg);
    top: 0;
}

.mobile-nav-toggle[aria-expanded="true"] span::after {
    transform: rotate(-45deg);
    bottom: 0;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===== HERO SECTION ===== */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), 
                url('../images/hero-bg.jpg') center/cover no-repeat;
    color: white;
    text-align: center;
    padding: var(--space-xl) var(--space-md);
    min-height: 70vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    color: white;
}

.hero > .container > p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto var(--space-lg);
    opacity: 0.9;
    color: white;
}

/* ===== BUTTONS ===== */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-orange) 0%, #ff8c5a 100%);
    color: white;
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    text-align: center;
    font-size: 1rem;
    font-family: var(--font-heading);
    gap: 0.5rem;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #ff5a1f 0%, #ff8c5a 100%);
    color: white;
}

.cta-large {
    padding: 1rem 2.25rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.cta-small {
    padding: 0.5rem 1.25rem;
    font-size: 0.9rem;
}

.cta-secondary {
    background: linear-gradient(135deg, var(--accent-teal) 0%, #00c9c9 100%);
    box-shadow: 0 4px 12px rgba(0, 168, 168, 0.3);
}

.cta-secondary:hover {
    background: linear-gradient(135deg, #008787 0%, #00c9c9 100%);
    box-shadow: 0 6px 18px rgba(0, 168, 168, 0.4);
}

.cta-outline {
    background: transparent;
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    box-shadow: none;
}

.cta-outline:hover {
    background: var(--primary-blue);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== CONTENT SECTIONS ===== */
.content-section {
    padding: var(--space-xl) var(--space-md);
}

.section-title {
    text-align: center;
    margin-bottom: var(--space-sm);
    color: var(--neutral-dark);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--accent-teal);
    margin: var(--space-sm) auto;
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--neutral-gray);
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto var(--space-xl);
}

.bg-light {
    background: var(--neutral-light);
}

.bg-gradient {
    background: linear-gradient(135deg, var(--primary-blue-light) 0%, var(--accent-teal-light) 100%);
}

/* ===== STATS SECTION ===== */
.stats-section {
    background: linear-gradient(135deg, var(--primary-blue-light) 0%, #f0f7ff 100%);
    padding: var(--space-xl) var(--space-md);
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.stat-card {
    background: white;
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border-top: 4px solid var(--accent-teal);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-card h3 {
    font-size: 2.2rem;
    color: var(--primary-blue);
    margin-bottom: var(--space-xs);
    font-weight: 700;
}

.stat-card p {
    color: var(--neutral-gray);
    font-size: 0.95rem;
    margin-bottom: 0;
}

.data-source {
    font-size: 0.85rem;
    color: var(--neutral-gray);
    margin-top: var(--space-lg);
    font-style: italic;
    opacity: 0.8;
}

/* ===== SERVICES GRID ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin: var(--space-xl) 0;
}

.service-card {
    background: white;
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--accent-teal);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-left-color: var(--accent-orange);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
    display: inline-block;
}

.service-card h3 {
    color: var(--primary-blue);
    margin-bottom: var(--space-md);
    font-size: 1.3rem;
}

.service-card h3 a {
    color: inherit;
    text-decoration: none;
}

.service-card h3 a:hover {
    color: var(--primary-blue-dark);
}

.service-card p {
    color: var(--neutral-gray);
    margin-bottom: var(--space-md);
    line-height: 1.6;
    flex-grow: 1;
}

.service-features {
    list-style: none;
    padding: 0;
    margin: var(--space-md) 0;
    flex-grow: 1;
}

.service-features li {
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    position: relative;
    color: var(--neutral-gray);
}

.service-features li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-green);
    font-weight: bold;
}

.service-cta {
    display: inline-flex;
    align-items: center;
    color: var(--accent-orange);
    font-weight: 600;
    text-decoration: none;
    margin-top: var(--space-md);
    transition: color 0.2s;
}

.service-cta:hover {
    color: #ff5a1f;
}

.service-note {
    background: var(--primary-blue-light);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-top: var(--space-lg);
    text-align: center;
    border-left: 4px solid var(--primary-blue);
}

/* ===== ADVANTAGE GRID ===== */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin: var(--space-xl) 0;
}

.advantage-card {
    text-align: center;
    padding: var(--space-lg);
}

.advantage-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
    display: inline-block;
}

.advantage-card h3 {
    color: var(--primary-blue);
    margin-bottom: var(--space-sm);
    font-size: 1.2rem;
}

.advantage-card p {
    color: var(--neutral-gray);
    font-size: 0.95rem;
}

/* ===== COMPARISON TABLES ===== */
.comparison-table-wrapper {
    overflow-x: auto;
    margin: var(--space-xl) 0;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

.comparison-table th {
    background-color: var(--primary-blue);
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.95rem;
}

.comparison-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--neutral-border);
    vertical-align: top;
}

.comparison-table tr:nth-child(even) {
    background-color: var(--neutral-light);
}

.comparison-table tr:hover {
    background-color: var(--primary-blue-light);
}

.comparison-table td strong {
    color: var(--primary-blue);
}

.savings-cell {
    color: var(--success-green);
    font-weight: 600;
}

.cost-note {
    background: var(--accent-teal-light);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-top: var(--space-lg);
    border-left: 4px solid var(--accent-teal);
    font-size: 0.95rem;
}

/* ===== PROCESS TIMELINE ===== */
.process-timeline {
    max-width: 800px;
    margin: var(--space-xl) auto;
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    left: 2.5rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--neutral-border);
    z-index: 1;
}

.process-step {
    display: flex;
    margin-bottom: var(--space-xl);
    position: relative;
    z-index: 2;
}

.step-number {
    width: 5rem;
    height: 5rem;
    background: var(--primary-blue);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-right: var(--space-lg);
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

.step-content {
    flex: 1;
    padding-top: 0.5rem;
}

.step-content h3 {
    color: var(--primary-blue);
    margin-bottom: var(--space-sm);
}

.process-cta {
    text-align: center;
    margin-top: var(--space-xl);
}

.small-text {
    font-size: 0.9rem;
    color: var(--neutral-gray);
    margin-top: var(--space-sm);
}

/* ===== CONTACT CTA ===== */
.contact-cta {
    text-align: center;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-teal) 100%);
    color: white;
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    margin: var(--space-xl) 0;
}

.contact-cta h2 {
    color: white;
    margin-bottom: var(--space-sm);
}

.contact-cta > p {
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.contact-method {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.contact-method h3 {
    color: white;
    margin-bottom: var(--space-sm);
}

.contact-method p {
    margin-bottom: 0;
    color: rgba(255, 255, 255, 0.9);
}

.contact-method a {
    color: white;
    text-decoration: underline;
}

.contact-method a.cta-button {
    text-decoration: none;
    margin-top: var(--space-md);
}

/* ===== FOOTER ===== */
footer {
    background: var(--neutral-dark);
    color: white;
    padding: var(--space-xl) var(--space-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-col h4 {
    color: white;
    font-size: 1.1rem;
    margin-bottom: var(--space-md);
    border-bottom: 2px solid var(--accent-teal);
    padding-bottom: var(--space-xs);
    display: inline-block;
}

.footer-col p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-sm);
    font-size: 0.95rem;
}

.footer-tagline {
    font-style: italic;
    color: var(--accent-teal) !important;
    font-weight: 600;
    margin-top: var(--space-sm);
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-col li {
    margin-bottom: var(--space-sm);
}

.footer-col a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.2s;
    font-size: 0.95rem;
}

.footer-col a:hover {
    color: white;
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-lg);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.disclaimer {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    margin-top: var(--space-sm);
    font-style: italic;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0.75rem var(--space-md);
    }
    
    .mobile-nav-toggle {
        display: block;
    }
    
    .primary-navigation {
        position: fixed;
        inset: 0;
        background: white;
        padding: 5rem 2rem 2rem;
        transform: translateX(100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
        z-index: 1000;
    }
    
    .primary-navigation[data-visible="true"] {
        transform: translateX(0);
    }
    
    .primary-navigation ul {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }
    
    .primary-navigation a {
        font-size: 1.1rem;
        padding: 0.5rem 0;
    }
    
    .hero {
        padding: 3rem 1rem;
        min-height: auto;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero > .container > p {
        font-size: 1.1rem;
    }
    
    .content-section {
        padding: 3rem 1rem;
    }
    
    .two-column-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .services-grid,
    .stats-grid,
    .advantage-grid,
    .contact-methods {
        grid-template-columns: 1fr;
    }
    
    .process-timeline::before {
        left: 2rem;
    }
    
    .step-number {
        width: 4rem;
        height: 4rem;
        margin-right: 1.5rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .logo-title {
        font-size: 1.1rem;
    }
    
    .logo-slogan {
        font-size: 0.8rem;
    }
    
    .stat-card h3 {
        font-size: 1.8rem;
    }
    
    .cta-button {
        width: 100%;
        justify-content: center;
    }
}

/* 添加以下样式到您的style.css文件中 */

/* 确保图片网格是水平排列的 */
.image-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* 强制显示3列 */
    gap: 20px;
    margin-top: 30px;
}

/* 网格项内部样式 */
.grid-item {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

/* 图片样式 */
.grid-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

/* 标题和文字样式 */
.grid-item h3 {
    padding: 20px 20px 10px;
    font-size: 1.2rem;
    color: var(--primary);
    margin: 0;
    flex-shrink: 0;
}

.grid-item p {
    padding: 0 20px 20px;
    color: var(--neutral);
    line-height: 1.5;
    margin: 0;
    flex-grow: 1;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .image-grid {
        grid-template-columns: 1fr; /* 手机端显示1列 */
    }
}

/* --- 调整流程步骤间距 --- */

/* 1. 减小标题与数字的间距 */
.process-step h3 {
    margin-top: 10px;   /* 原来是 15px 或更大，改小一点 */
    margin-bottom: 8px; /* 原来是 10px 左右，稍微收紧 */
}

/* 2. 减小说明文字与标题的间距 (如果上面不够) */
.process-step p {
    margin-top: 5px;    /* 原来是 10px 左右，收紧 */
    line-height: 1.5;   /* 可选：稍微减小行高让文字更聚拢 */
}

/* ===== COMPACT HORIZONTAL PROCESS STEPS ===== */
.process-section {
    margin: var(--space-xl) 0;
}

.process-horizontal {
    display: flex;
    gap: var(--space-md);
    justify-content: space-between;
    align-items: stretch;
    margin: 0 auto;
    max-width: 1200px;
}

.process-step-horizontal {
    flex: 1;
    text-align: center;
    padding: var(--space-md);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-top: 4px solid var(--accent-teal);
}

.process-step-horizontal:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-top-color: var(--accent-orange);
}

.step-number-compact {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    flex-shrink: 0;
}

.step-content-horizontal {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 100%;
}

.step-content-horizontal h3 {
    font-size: 1.1rem;
    margin: var(--space-xs) 0;
    color: var(--primary-blue);
    line-height: 1.3;
    min-height: 2.6em; /* 确保标题行高一致 */
}

.step-content-horizontal p {
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--neutral-gray);
    margin: var(--space-xs) 0 0 0;
    flex-grow: 1;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .process-horizontal {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .process-step-horizontal {
        min-height: auto;
        padding: var(--space-sm);
    }
    
    .step-content-horizontal h3 {
        font-size: 1rem;
        min-height: auto;
    }
    
    .step-content-horizontal p {
        font-size: 0.85rem;
    }
}


/* ===== MOBILE NAVIGATION ENHANCEMENTS ===== */
@media (max-width: 768px) {
    .nav-container {
        padding: 0.75rem var(--space-md);
        flex-wrap: nowrap;
    }
    
    .mobile-nav-toggle {
        display: block;
        order: 2; /* 按钮在右侧 */
    }
    
    .logo-area {
        order: 1; /* logo在左侧 */
        flex: 1;
    }
    
    .primary-navigation {
        position: fixed;
        inset: 0;
        background: white;
        padding: 5rem 2rem 2rem;
        transform: translateX(100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
        z-index: 999;
    }
    
    .primary-navigation[data-visible="true"] {
        transform: translateX(0);
    }
    
    .primary-navigation ul {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }
    
    .primary-navigation li {
        width: 100%;
    }
    
    .primary-navigation a {
        display: block;
        font-size: 1.1rem;
        padding: 1rem 0;
        border-bottom: 1px solid var(--neutral-border);
        width: 100%;
    }
    
    .primary-navigation a:last-child {
        border-bottom: none;
    }
    
    .primary-navigation a.active {
        color: var(--primary-blue);
        font-weight: 600;
        border-left: 4px solid var(--primary-blue);
        padding-left: 1rem;
        margin-left: -1rem;
    }
    
    .primary-navigation a.active::after {
        display: none;
    }
    
    .cta-button.cta-small {
        display: inline-block;
        width: auto;
        margin-top: 1rem;
        text-align: center;
    }
}

/* ===== NAVIGATION BAR FIX - 两行显示方案 ===== */

/* 电脑端导航栏样式修复 */
@media (min-width: 769px) {
    .nav-container {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        padding: 0.5rem var(--space-md) 0;
    }
    
    .logo-area {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .primary-navigation {
        width: 100%;
        padding-top: 0.5rem;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .primary-navigation ul {
        display: grid;
        grid-template-columns: repeat(4, auto);
        gap: 0.5rem 1.5rem;
        justify-content: start;
        flex-wrap: wrap;
    }
    
    .primary-navigation li {
        margin-bottom: 0.5rem;
    }
    
    .primary-navigation a {
        padding: 0.5rem 0.75rem;
        white-space: nowrap;
        font-size: 0.9rem;
    }
    
    .primary-navigation a.cta-button.cta-small {
        grid-column: span 4;
        justify-self: start;
        width: auto;
        margin-top: 0.5rem;
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    /* 确保移动端菜单按钮不显示 */
    .mobile-nav-toggle {
        display: none;
    }
    
    /* 确保导航栏不换行到第三行 */
    .primary-navigation ul {
        grid-template-columns: repeat(4, auto);
    }
}

/* 中等屏幕优化 (992px以上) */
@media (min-width: 992px) {
    .primary-navigation ul {
        grid-template-columns: repeat(4, auto);
        gap: 0.5rem 2rem;
    }
    
    .primary-navigation a {
        font-size: 0.95rem;
        padding: 0.5rem 1rem;
    }
    
    .primary-navigation a.cta-button.cta-small {
        grid-column: span 1;
        justify-self: end;
        margin-top: 0;
    }
}

/* 大屏幕优化 (1200px以上) */
@media (min-width: 1200px) {
    .primary-navigation ul {
        grid-template-columns: repeat(7, auto) 1fr;
        gap: 0.5rem 1.5rem;
    }
    
    .primary-navigation li:last-child {
        grid-column: 8;
        justify-self: end;
    }
    
    .primary-navigation a.cta-button.cta-small {
        grid-column: auto;
        width: auto;
    }
}

/* 移动端样式保持不变 */
@media (max-width: 768px) {
    .nav-container {
        padding: 0.75rem var(--space-md);
        flex-direction: row;
        flex-wrap: nowrap;
    }
    
    .logo-area {
        margin-bottom: 0;
    }
    
    .mobile-nav-toggle {
        display: block;
        order: 2;
    }
    
    .primary-navigation {
        position: fixed;
        inset: 0;
        background: white;
        padding: 5rem 2rem 2rem;
        transform: translateX(100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
        z-index: 1000;
        border-top: none;
    }
    
    .primary-navigation[data-visible="true"] {
        transform: translateX(0);
    }
    
    .primary-navigation ul {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }
    
    .primary-navigation li {
        width: 100%;
        margin-bottom: 0;
    }
    
    .primary-navigation a {
        display: block;
        font-size: 1.1rem;
        padding: 1rem 0;
        border-bottom: 1px solid var(--neutral-border);
        width: 100%;
        white-space: normal;
    }
    
    .primary-navigation a.cta-button.cta-small {
        margin-top: 1rem;
        width: auto;
        display: inline-block;
    }
}