/* ============================================
   南京企拓信息技术有限公司 - 企业官网样式
   ============================================ */

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

:root {
    /* Colors */
    --primary: #0A6CFF;
    --primary-dark: #0052CC;
    --primary-light: #3D8BFF;
    --accent: #00C6FF;
    --accent-dark: #0099CC;
    --gradient: linear-gradient(135deg, #0A6CFF 0%, #00C6FF 100%);
    --gradient-dark: linear-gradient(135deg, #0052CC 0%, #0099CC 100%);
    
    --text-dark: #1A1A2E;
    --text-body: #4A4A5E;
    --text-light: #8A8A9E;
    --text-white: #FFFFFF;
    
    --bg-white: #FFFFFF;
    --bg-light: #F7F9FC;
    --bg-gray: #EEF1F6;
    --bg-dark: #0D1117;
    
    --border: #E5E8ED;
    --border-light: #F0F2F5;
    
    --shadow-sm: 0 2px 8px rgba(10, 108, 255, 0.06);
    --shadow-md: 0 8px 24px rgba(10, 108, 255, 0.1);
    --shadow-lg: 0 16px 48px rgba(10, 108, 255, 0.12);
    --shadow-xl: 0 24px 64px rgba(10, 108, 255, 0.16);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: var(--text-body);
    background: var(--bg-white);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

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

.section {
    padding: 100px 0;
    position: relative;
}

/* ========== Gradient Text ========== */
.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========== Section Header ========== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--primary);
    text-transform: uppercase;
    margin-bottom: 12px;
    padding: 6px 16px;
    background: rgba(10, 108, 255, 0.08);
    border-radius: 20px;
}

.section-title {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 16px;
    line-height: 1.3;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-light);
    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(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-sm);
    border-bottom-color: var(--border-light);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-name {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-dark);
}

.logo-sub {
    font-size: 0.65rem;
    letter-spacing: 1px;
    color: var(--text-light);
}

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

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-body);
    position: relative;
    transition: var(--transition);
    padding: 4px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    border-radius: 2px;
    transition: var(--transition);
}

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

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

/* ========== 下拉菜单 ========== */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-trigger {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-body);
    position: relative;
    transition: var(--transition);
    padding: 4px 0;
    cursor: pointer;
    background: none;
    border: none;
}

.nav-dropdown-trigger::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    border-radius: 2px;
    transition: var(--transition);
}

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

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

.nav-dropdown-arrow {
    display: inline-block;
    width: 10px;
    height: 10px;
    transition: transform 0.3s ease;
}

.nav-dropdown.open .nav-dropdown-arrow {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    min-width: 200px;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(10, 108, 255, 0.12);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
    z-index: 1000;
}

.nav-dropdown.open .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--text-body);
    transition: all 0.2s ease;
    white-space: nowrap;
}

.nav-dropdown-item:hover {
    background: linear-gradient(135deg, rgba(10, 108, 255, 0.06), rgba(0, 198, 255, 0.06));
    color: var(--primary);
}

.nav-dropdown-item-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: linear-gradient(135deg, rgba(10, 108, 255, 0.1), rgba(0, 198, 255, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.nav-dropdown-item-icon svg {
    width: 14px;
    height: 14px;
}

/* 移动端下拉 */
@media (max-width: 1024px) {
    .nav-dropdown {
        position: static;
    }
    
    .nav-dropdown-trigger {
        width: 100%;
        justify-content: space-between;
        padding: 12px 0;
        font-size: 1.05rem;
    }
    
    .nav-dropdown-menu {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        background: transparent;
        padding: 0 0 8px 20px;
        opacity: 1;
        visibility: visible;
        display: none;
    }
    
    .nav-dropdown.open .nav-dropdown-menu {
        transform: none;
        display: block;
    }
    
    .nav-dropdown-item {
        padding: 10px 0;
        font-size: 0.95rem;
    }
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-contact-header {
    padding: 10px 24px;
    background: var(--gradient);
    color: var(--text-white);
    border-radius: 24px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(10, 108, 255, 0.25);
}

.btn-contact-header:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(10, 108, 255, 0.35);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ========== Hero Section ========== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 72px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    background: linear-gradient(180deg, #F0F6FF 0%, #FFFFFF 50%, #F7F9FC 100%);
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(10, 108, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(10, 108, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 70%);
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}

.hero-glow-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(10, 108, 255, 0.3) 0%, transparent 70%);
    top: -100px;
    right: -100px;
}

.hero-glow-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 198, 255, 0.25) 0%, transparent 70%);
    bottom: -50px;
    left: -50px;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(10, 108, 255, 0.3);
    border-radius: 50%;
    animation: float-particle 15s infinite ease-in-out;
}

@keyframes float-particle {
    0%, 100% { transform: translateY(0) translateX(0); opacity: 0; }
    10%, 90% { opacity: 1; }
    50% { transform: translateY(-100px) translateX(50px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 60px 24px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(10, 108, 255, 0.15);
    border-radius: 24px;
    font-size: 0.85rem;
    color: var(--text-body);
    margin-bottom: 24px;
    animation: fadeInDown 0.8s ease;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.7; }
}

.hero-title {
    font-size: 3.8rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-body);
    max-width: 700px;
    margin: 0 auto 40px;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-br {
    display: inline;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 60px;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--gradient);
    color: var(--text-white);
    border-radius: 28px;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 8px 24px rgba(10, 108, 255, 0.3);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(10, 108, 255, 0.4);
}

.btn-primary svg {
    transition: var(--transition);
}

.btn-primary:hover svg {
    transform: translateX(4px);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    padding: 14px 32px;
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: 28px;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--text-white);
    transform: translateY(-3px);
}

.btn-primary-sm {
    display: inline-block;
    padding: 10px 24px;
    background: var(--gradient);
    color: var(--text-white);
    border-radius: 22px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(10, 108, 255, 0.25);
}

.btn-primary-sm:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(10, 108, 255, 0.35);
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    animation: fadeInUp 0.8s ease 0.8s both;
}

.hero-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-stat-num {
    font-size: 2.2rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-stat-label {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 4px;
}

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

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-indicator span {
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-light);
    border-radius: 12px;
    position: relative;
}

.scroll-indicator span::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--text-light);
    border-radius: 2px;
    animation: scroll-dot 2s infinite;
}

@keyframes scroll-dot {
    0% { top: 8px; opacity: 1; }
    100% { top: 20px; opacity: 0; }
}

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

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

/* ========== Services Section ========== */
.services {
    background: var(--bg-white);
}

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

.service-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.service-card-arrow {
    display: inline-block;
    margin-top: 16px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    transition: var(--transition);
}

.service-card-link:hover .service-card-arrow {
    transform: translateX(6px);
}

.service-card {
    position: relative;
    padding: 40px 32px;
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 24px;
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.service-desc {
    font-size: 0.9rem;
    color: var(--text-body);
    line-height: 1.7;
    margin-bottom: 20px;
}

.service-features {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.service-features li {
    font-size: 0.8rem;
    padding: 4px 12px;
    background: rgba(10, 108, 255, 0.06);
    color: var(--primary);
    border-radius: 12px;
    font-weight: 500;
}

.service-num {
    position: absolute;
    top: 24px;
    right: 28px;
    font-size: 3rem;
    font-weight: 900;
    color: rgba(10, 108, 255, 0.06);
    line-height: 1;
}

.service-card-cta {
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
}

.service-card-cta:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(10, 108, 255, 0.25);
}

.service-card-cta::before {
    display: none;
}

.cta-inner {
    text-align: center;
    color: var(--text-white);
}

.cta-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.cta-desc {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-card-cta .btn-primary-sm {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.service-card-cta .btn-primary-sm:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* ========== AI GEO Section ========== */
.geo-section {
    background: var(--bg-light);
}

.geo-benefits {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 80px;
}

.geo-benefit-card {
    padding: 40px 32px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

.geo-benefit-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.geo-benefit-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 20px;
}

.geo-benefit-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.geo-benefit-card p {
    font-size: 0.9rem;
    color: var(--text-body);
    line-height: 1.8;
}

/* ========== Comparison Table ========== */
.geo-comparison {
    margin-bottom: 80px;
}

.comparison-header {
    text-align: center;
    margin-bottom: 40px;
}

.comparison-header h3 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.comparison-header p {
    color: var(--text-light);
}

.comparison-table {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.comparison-row {
    display: grid;
    grid-template-columns: 200px 1fr 1fr;
    border-bottom: 1px solid var(--border-light);
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-row-header {
    background: var(--bg-gray);
}

.comparison-row-header .comparison-cell {
    font-weight: 700;
    color: var(--text-dark);
    text-align: center;
    padding: 20px;
    font-size: 1.05rem;
}

.comparison-cell {
    padding: 28px 24px;
    border-right: 1px solid var(--border-light);
}

.comparison-cell:last-child {
    border-right: none;
}

.comparison-cell-label {
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--text-dark);
    font-size: 1rem;
    background: var(--bg-gray);
}

.comparison-cell-seo {
    color: var(--text-body);
}

.comparison-cell-geo {
    background: rgba(10, 108, 255, 0.02);
    color: var(--text-dark);
}

.comparison-cell p {
    font-size: 0.9rem;
    line-height: 1.7;
}

.comparison-row-header .comparison-cell-geo {
    background: rgba(10, 108, 255, 0.06);
    color: var(--primary);
}

/* ========== AI Demo ========== */
.ai-demo {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 60px 48px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.ai-demo-header {
    text-align: center;
    margin-bottom: 40px;
}

.ai-demo-header h3 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.ai-demo-header p {
    color: var(--text-light);
}

.ai-demo-container {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 32px;
    align-items: start;
}

.ai-demo-chat {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.chat-question,
.chat-answer {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

.chat-avatar-user {
    background: var(--bg-gray);
    color: var(--text-body);
}

.chat-avatar-ai {
    background: var(--gradient);
    color: var(--text-white);
}

.chat-bubble {
    padding: 16px 20px;
    border-radius: var(--radius-md);
    max-width: calc(100% - 52px);
    font-size: 0.9rem;
    line-height: 1.7;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.chat-bubble-question {
    background: var(--bg-gray);
    color: var(--text-dark);
}

.chat-bubble-answer {
    background: rgba(10, 108, 255, 0.05);
    border: 1px solid rgba(10, 108, 255, 0.1);
}

.chat-prefix {
    font-weight: 700;
    color: var(--text-light);
    flex-shrink: 0;
}

.chat-prefix-ai {
    color: var(--primary);
}

.chat-cursor {
    animation: blink 1s infinite;
    color: var(--primary);
    font-weight: 300;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.brand-highlight {
    color: var(--primary);
}

.chat-bubble-answer p {
    margin: 0;
}

.ai-demo-questions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.demo-q-item {
    padding: 14px 16px;
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--text-body);
    cursor: pointer;
    transition: var(--transition);
    line-height: 1.5;
}

.demo-q-item:hover {
    background: rgba(10, 108, 255, 0.05);
    border-color: rgba(10, 108, 255, 0.2);
    color: var(--primary);
}

.demo-q-item.active {
    background: rgba(10, 108, 255, 0.08);
    border-color: var(--primary);
    color: var(--primary);
    font-weight: 600;
}

/* ========== Advantages Section ========== */
.advantages {
    background: var(--bg-white);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.advantage-card {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 24px;
    padding: 36px 32px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    overflow: hidden;
}

.advantage-card:hover {
    background: var(--bg-white);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.advantage-num {
    font-size: 2rem;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    flex-shrink: 0;
    line-height: 1;
}

.advantage-content {
    flex: 1;
}

.advantage-content h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.advantage-content p {
    font-size: 0.88rem;
    color: var(--text-body);
    line-height: 1.7;
}

.advantage-icon {
    position: absolute;
    bottom: 16px;
    right: 20px;
    width: 48px;
    height: 48px;
    opacity: 0.08;
    color: var(--primary);
    transition: var(--transition);
}

.advantage-card:hover .advantage-icon {
    opacity: 0.15;
    transform: scale(1.1);
}

.advantage-icon svg {
    width: 100%;
    height: 100%;
}

/* ========== Industry Coverage ========== */
.industry-coverage {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 48px;
    text-align: center;
}

.industry-header {
    margin-bottom: 28px;
}

.industry-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.industry-header p {
    color: var(--text-light);
}

.industry-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.industry-tag {
    padding: 10px 24px;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 0.88rem;
    color: var(--text-body);
    transition: var(--transition);
    cursor: default;
}

.industry-tag:hover {
    background: var(--gradient);
    color: var(--text-white);
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(10, 108, 255, 0.2);
}

/* ========== Process Section ========== */
.process {
    background: var(--bg-light);
}

.process-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.process-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary) 0%, var(--accent) 100%);
    opacity: 0.2;
    transform: translateX(-50%);
}

.process-step {
    position: relative;
    display: flex;
    align-items: center;
    margin-bottom: 40px;
}

.process-step:nth-child(odd) {
    justify-content: flex-start;
}

.process-step:nth-child(even) {
    justify-content: flex-end;
}

.process-step:nth-child(odd) .process-content {
    text-align: right;
    padding-right: 60px;
    width: 50%;
}

.process-step:nth-child(even) .process-content {
    text-align: left;
    padding-left: 60px;
    width: 50%;
}

.process-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--bg-white);
    border: 3px solid var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.process-marker span {
    font-size: 1.1rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.process-step:hover .process-marker {
    background: var(--gradient);
    transform: translateX(-50%) scale(1.15);
}

.process-step:hover .process-marker span {
    -webkit-text-fill-color: var(--text-white);
}

.process-content {
    background: var(--bg-white);
    padding: 24px 28px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.process-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.process-content p {
    font-size: 0.85rem;
    color: var(--text-body);
    line-height: 1.7;
}

.process-step:hover .process-content {
    box-shadow: var(--shadow-md);
    transform: scale(1.02);
}

/* ========== About Section ========== */
.about {
    background: var(--bg-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.about-block {
    margin-bottom: 32px;
}

.about-block:last-child {
    margin-bottom: 0;
}

.about-block h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
    position: relative;
    padding-left: 16px;
}

.about-block h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    background: var(--gradient);
    border-radius: 2px;
}

.about-block p {
    font-size: 0.92rem;
    color: var(--text-body);
    line-height: 1.9;
}

.about-block strong {
    color: var(--primary);
}

.about-visual {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    align-content: start;
}

.about-stat-card {
    padding: 32px 24px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

.about-stat-card:hover {
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.about-stat-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
}

.about-stat-icon svg {
    width: 100%;
    height: 100%;
}

.about-stat-value {
    font-size: 2.2rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.about-stat-label {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 8px;
}

/* ========== Philosophy ========== */
.philosophy {
    background: var(--gradient);
    border-radius: var(--radius-xl);
    padding: 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.philosophy::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.philosophy-card {
    position: relative;
    z-index: 1;
}

.philosophy-quote {
    font-size: 4rem;
    font-family: Georgia, serif;
    color: rgba(255, 255, 255, 0.3);
    line-height: 0.5;
    margin-bottom: 20px;
}

.philosophy-card h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 16px;
}

.philosophy-card p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ========== Contact Section ========== */
.contact {
    background: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 24px;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

.contact-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.contact-icon {
    width: 44px;
    height: 44px;
    background: rgba(10, 108, 255, 0.08);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.contact-icon svg {
    width: 22px;
    height: 22px;
}

.contact-detail h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.contact-detail p {
    font-size: 0.88rem;
    color: var(--text-body);
}

.contact-form-wrap {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.form-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 18px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--text-dark);
    background: var(--bg-light);
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-white);
    box-shadow: 0 0 0 3px rgba(10, 108, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.btn-submit {
    width: 100%;
    padding: 14px;
    background: var(--gradient);
    color: var(--text-white);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(10, 108, 255, 0.25);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(10, 108, 255, 0.35);
}

.form-hint {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 12px;
}

/* ========== Footer ========== */
.footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 24px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo .logo-name {
    color: var(--text-white);
}

.footer-desc {
    font-size: 0.88rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.5);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 16px;
}

.footer-col a,
.footer-col p {
    display: block;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 10px;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--accent);
    transform: translateX(4px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.82rem;
    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(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(10, 108, 255, 0.3);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(10, 108, 255, 0.4);
}

.back-to-top svg {
    width: 22px;
    height: 22px;
}

/* ========== Animations on Scroll ========== */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .geo-benefits {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ai-demo-container {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .nav {
        display: none;
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--border-light);
    }
    
    .nav.active {
        display: flex;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .btn-contact-header {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding: 120px 0 80px;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-desc {
        font-size: 0.95rem;
    }
    
    .hero-br {
        display: none;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 16px;
    }
    
    .hero-stat-divider {
        display: none;
    }
    
    .hero-stat-num {
        font-size: 1.6rem;
    }
    
    .scroll-indicator {
        display: none;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .geo-benefits {
        grid-template-columns: 1fr;
    }
    
    .comparison-row {
        grid-template-columns: 1fr;
    }
    
    .comparison-cell {
        border-right: none;
        border-bottom: 1px solid var(--border-light);
    }
    
    .comparison-row-header {
        display: none;
    }
    
    .comparison-cell-label {
        background: var(--bg-gray);
        padding: 12px 16px;
    }
    
    .ai-demo {
        padding: 32px 20px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .advantage-card {
        flex-direction: column;
        gap: 12px;
    }
    
    .advantage-icon {
        display: none;
    }
    
    .industry-coverage {
        padding: 32px 20px;
    }
    
    .process-line {
        left: 28px;
    }
    
    .process-step:nth-child(odd),
    .process-step:nth-child(even) {
        justify-content: flex-start;
    }
    
    .process-step:nth-child(odd) .process-content,
    .process-step:nth-child(even) .process-content {
        text-align: left;
        padding-right: 0;
        padding-left: 72px;
        width: 100%;
    }
    
    .process-marker {
        left: 28px;
    }
    
    .about-visual {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .philosophy {
        padding: 40px 24px;
    }
    
    .philosophy-card h3 {
        font-size: 1.3rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .about-visual {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   服务详情子页面样式
   ============================================ */

/* ========== Page Hero (子页面) ========== */
.page-hero {
    position: relative;
    padding: 140px 0 60px;
    overflow: hidden;
    background: linear-gradient(180deg, #F0F6FF 0%, #FFFFFF 100%);
}

.page-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.page-hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(10, 108, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(10, 108, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 70%);
}

.page-hero-glow {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    background: radial-gradient(circle, rgba(10, 108, 255, 0.3) 0%, transparent 70%);
    top: -150px;
    right: -100px;
}

.page-hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 20px;
}

.breadcrumb a {
    color: var(--text-light);
    transition: var(--transition);
}

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

.breadcrumb span {
    color: var(--text-body);
    font-weight: 500;
}

.breadcrumb-sep {
    color: var(--text-light);
}

.page-hero-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
}

.page-hero-icon svg {
    width: 100%;
    height: 100%;
}

.page-hero-title {
    font-size: 2.6rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 16px;
    line-height: 1.3;
}

.page-hero-desc {
    font-size: 1.05rem;
    color: var(--text-body);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

.page-hero-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 24px;
}

.page-hero-tag {
    padding: 6px 16px;
    background: rgba(10, 108, 255, 0.08);
    color: var(--primary);
    border-radius: 16px;
    font-size: 0.82rem;
    font-weight: 500;
}

/* ========== Service Detail Section ========== */
.service-detail {
    padding: 80px 0;
}

.service-detail-alt {
    background: var(--bg-light);
}

.service-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.service-detail-grid.reverse .service-detail-text {
    order: 2;
}

.service-detail-text h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
    position: relative;
    padding-left: 16px;
}

.service-detail-text h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background: var(--gradient);
    border-radius: 2px;
}

.service-detail-text > p {
    font-size: 0.95rem;
    color: var(--text-body);
    line-height: 1.9;
    margin-bottom: 24px;
}

.service-detail-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.service-detail-list li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.service-detail-list li::before {
    content: '';
    width: 20px;
    height: 20px;
    background: var(--gradient);
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 3px;
    position: relative;
}

.service-detail-list li::after {
    content: '\2713';
    position: absolute;
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    left: 24px;
    top: 6px;
    pointer-events: none;
}

.service-detail-list li > div {
    flex: 1;
}

.service-detail-list li strong {
    display: block;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.service-detail-list li span {
    font-size: 0.85rem;
    color: var(--text-body);
    line-height: 1.7;
}

.service-detail-visual {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.service-detail-visual-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 24px;
}

.service-detail-visual-icon svg {
    width: 100%;
    height: 100%;
}

.service-detail-visual h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.service-detail-visual p {
    font-size: 0.88rem;
    color: var(--text-body);
    line-height: 1.8;
    margin-bottom: 20px;
}

.service-detail-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.service-detail-stat {
    padding: 16px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    text-align: center;
}

.service-detail-stat-num {
    font-size: 1.6rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.service-detail-stat-label {
    font-size: 0.78rem;
    color: var(--text-light);
    margin-top: 4px;
}

/* ========== Sub Services Grid ========== */
.sub-services {
    padding: 80px 0;
}

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

.sub-service-card {
    padding: 32px 28px;
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.sub-service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.sub-service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.sub-service-card:hover::before {
    transform: scaleX(1);
}

.sub-service-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 20px;
}

.sub-service-icon svg {
    width: 100%;
    height: 100%;
}

.sub-service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.sub-service-card p {
    font-size: 0.86rem;
    color: var(--text-body);
    line-height: 1.7;
}

.sub-service-num {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 2.5rem;
    font-weight: 900;
    color: rgba(10, 108, 255, 0.06);
    line-height: 1;
}

/* ========== Feature Highlights ========== */
.feature-highlights {
    padding: 80px 0;
    background: var(--bg-light);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.feature-item {
    text-align: center;
    padding: 32px 20px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

.feature-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: rgba(10, 108, 255, 0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
}

.feature-item h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 0.82rem;
    color: var(--text-body);
    line-height: 1.7;
}

/* ========== Service Process (子页面简化版) ========== */
.service-process {
    padding: 80px 0;
}

.service-process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}

.service-process-step {
    text-align: center;
    position: relative;
}

.service-process-step::after {
    content: '';
    position: absolute;
    top: 28px;
    right: -16px;
    width: 32px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0.3;
}

.service-process-step:last-child::after {
    display: none;
}

.service-process-num {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: var(--bg-white);
    border: 3px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: var(--transition);
}

.service-process-step:hover .service-process-num {
    background: var(--gradient);
    -webkit-text-fill-color: var(--text-white);
    transform: scale(1.1);
}

.service-process-step h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.service-process-step p {
    font-size: 0.82rem;
    color: var(--text-body);
    line-height: 1.7;
    padding: 0 8px;
}

/* ========== CTA Section ========== */
.cta-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.cta-banner {
    background: var(--gradient);
    border-radius: var(--radius-xl);
    padding: 60px 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-banner::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

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

.cta-banner h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 12px;
}

.cta-banner p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 28px;
}

.cta-banner .btn-primary {
    background: var(--text-white);
    color: var(--primary);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.cta-banner .btn-primary:hover {
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

.cta-banner .btn-outline {
    color: var(--text-white);
    border-color: rgba(255, 255, 255, 0.5);
}

.cta-banner .btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--text-white);
}

/* ========== Related Services ========== */
.related-services {
    padding: 80px 0;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.related-card {
    display: block;
    padding: 24px 20px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    transition: var(--transition);
    border: 1px solid var(--border-light);
    text-align: center;
}

.related-card:hover {
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.related-card.current {
    background: rgba(10, 108, 255, 0.06);
    border-color: rgba(10, 108, 255, 0.2);
}

.related-card-icon {
    width: 40px;
    height: 40px;
    margin: 0 auto 12px;
}

.related-card-icon svg {
    width: 100%;
    height: 100%;
}

.related-card h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.related-card p {
    font-size: 0.78rem;
    color: var(--text-light);
}

/* ========== Platform Cards (地图商家运营) ========== */
.platform-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.platform-card {
    padding: 36px 28px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

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

.platform-logo {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-white);
}

.platform-logo.baidu { background: linear-gradient(135deg, #2196F3, #1565C0); }
.platform-logo.amap { background: linear-gradient(135deg, #00BCD4, #00838F); }
.platform-logo.tencent { background: linear-gradient(135deg, #00C6FF, #0A6CFF); }

.platform-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.platform-card p {
    font-size: 0.85rem;
    color: var(--text-body);
    margin-bottom: 16px;
}

.platform-features {
    list-style: none;
    text-align: left;
}

.platform-features li {
    font-size: 0.82rem;
    color: var(--text-body);
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

.platform-features li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* ========== Tech Stack Grid (企业网站技术) ========== */
.tech-stack-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.tech-stack-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

.tech-stack-item:hover {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}

.tech-stack-icon {
    width: 36px;
    height: 36px;
    background: rgba(10, 108, 255, 0.08);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.tech-stack-icon svg {
    width: 20px;
    height: 20px;
}

.tech-stack-item h4 {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 2px;
}

.tech-stack-item p {
    font-size: 0.78rem;
    color: var(--text-light);
}

/* ========== Responsive for Sub-pages ========== */
@media (max-width: 1024px) {
    .service-detail-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .service-detail-grid.reverse .service-detail-text {
        order: 0;
    }

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

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

    .service-process-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

    .service-process-step::after {
        display: none;
    }

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

    .platform-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .page-hero {
        padding: 120px 0 48px;
    }

    .page-hero-title {
        font-size: 1.8rem;
    }

    .page-hero-desc {
        font-size: 0.92rem;
    }

    .service-detail {
        padding: 56px 0;
    }

    .service-detail-text h2 {
        font-size: 1.4rem;
    }

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

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

    .service-process-grid {
        grid-template-columns: 1fr;
    }

    .cta-banner {
        padding: 40px 24px;
    }

    .cta-banner h2 {
        font-size: 1.4rem;
    }

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

    .tech-stack-grid {
        grid-template-columns: 1fr;
    }
}