* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.55;
    color: #2d3748;
    background-color: #f7fafc;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 容器样式 */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 40px;
}

/* 按钮样式 */
.cta-btn {
    display: inline-block;
    padding: 14px 32px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.cta-btn.primary {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.cta-btn.primary:hover {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(59, 130, 246, 0.4);
}

.cta-btn.primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.cta-btn.primary:hover::before {
    left: 100%;
}

.cta-btn.secondary {
    background: rgba(255, 255, 255, 0.8);
    color: #2563eb;
    border: 2px solid #3b82f6;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.1);
}

.cta-btn.secondary:hover {
    background: #3b82f6;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
}

/* 标题样式 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 44px;
    font-weight: 700;
    color: #1a202c;
    text-align: center;
    margin-bottom: 15px;
    line-height: 1.05;
    letter-spacing: -0.025em;
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.section-header::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #60a5fa);
    border-radius: 2px;
}

.section-subtitle-en {
    font-size: 18px;
    color: #64748b;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin: 0;
    margin-bottom: 20px;
}

/* 顶部导航栏 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    padding: 18px 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    padding: 12px 0;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
}

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

.logo h1 {
    font-size: 26px;
    font-weight: 700;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

/* Hero 首屏 */
.hero {
    background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
    padding: 160px 0 140px;
    margin-top: 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at 100% 0%, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
    z-index: 0;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 80px;
    position: relative;
    z-index: 1;
}

.hero-text {
    flex: 1;
}

.hero-tagline {
    font-size: 18px;
    font-weight: 600;
    color: #3b82f6;
    margin-bottom: 15px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-size: 60px;
    font-weight: 700;
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    line-height: 1.02;
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: 22px;
    color: #4a5568;
    margin-bottom: 15px;
    font-weight: 400;
    line-height: 1.55;
    letter-spacing: -0.015em;
    max-width: 80%;
}

.hero-subtitle-en {
    font-size: 18px;
    color: #64748b;
    margin-bottom: 48px;
    font-weight: 400;
    line-height: 1.55;
    letter-spacing: -0.01em;
    max-width: 80%;
    font-style: italic;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 400px;
}

.hero-cta-note {
    font-size: 14px;
    color: #64748b;
    margin-left: 8px;
    font-weight: 500;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.image-placeholder {
    width: 400px;
    height: 300px;
    background-color: #e2e8f0;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #1a365d;
    font-size: 18px;
    font-weight: 500;
}

.image-placeholder i {
    font-size: 60px;
    margin-bottom: 15px;
    opacity: 0.5;
}

/* 价值亮点区 */
.values {
    padding: 140px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    position: relative;
}

.values::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, #e2e8f0, transparent);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.value-card {
    text-align: center;
    padding: 40px 30px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(226, 232, 240, 0.6);
    position: relative;
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #60a5fa);
    transform: scaleX(0);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.value-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 16px 48px rgba(59, 130, 246, 0.12);
    border-color: #3b82f6;
}

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

.value-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    box-shadow: 0 6px 24px rgba(59, 130, 246, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.value-card:hover .value-icon {
    transform: translateY(-5px);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.4);
}

.value-icon i {
    font-size: 36px;
    color: white;
    display: block;
}

.value-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 15px;
    letter-spacing: -0.01em;
}

.value-card .value-desc {
    color: #4a5568;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 10px;
}

.value-card .value-desc-en {
    color: #64748b;
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* 关于我们优势网格 */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, auto);
    gap: 30px;
    margin-bottom: 40px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

/* 响应式设计：保持3列*2行布局 */
@media (max-width: 1200px) {
    .advantages-grid {
        grid-template-columns: repeat(3, 1fr);
        grid-template-rows: repeat(2, auto);
    }
}

@media (max-width: 768px) {
    .advantages-grid {
        grid-template-columns: repeat(3, 1fr);
        grid-template-rows: repeat(2, auto);
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .advantages-grid {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: repeat(3, auto);
        gap: 15px;
    }
}

/* 核心服务版块 */
.services {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    position: relative;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

/* 响应式设计：移动端单列 */
@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

.service-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 40px 30px;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(226, 232, 240, 0.6);
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
    min-height: 480px;
    justify-content: space-between;
    position: relative;
    overflow: visible;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #60a5fa);
    transform: scaleX(0);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 16px 48px rgba(59, 130, 246, 0.12);
    border-color: #3b82f6;
}

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

/* 限时优惠邮戳样式 */
.service-stamp {
    position: absolute;
    top: -30px;
    right: -30px;
    width: 120px;
    height: 120px;
    background-color: #ef4444;
    color: white;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    text-align: center;
    line-height: 1.3;
    transform: rotate(15deg);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
    z-index: 10;
    animation: pulse 2s infinite;
}

.service-stamp::before {
    content: '';
    position: absolute;
    top: 5px;
    left: 5px;
    right: 5px;
    bottom: 5px;
    border: 2px dashed white;
    border-radius: 50%;
}

@keyframes pulse {
    0%, 100% {
        transform: rotate(15deg) scale(1);
        opacity: 1;
    }
    50% {
        transform: rotate(15deg) scale(1.05);
        opacity: 0.9;
    }
}

.service-stamp .stamp-title {
    font-size: 18px;
    margin-bottom: 3px;
    font-weight: 700;
}

.service-stamp .stamp-price {
    font-size: 14px;
    font-weight: 700;
    color: #fff3cd;
    margin: 2px 0;
}

.service-stamp .stamp-note {
    font-size: 10px;
    opacity: 0.9;
    margin-top: 2px;
}

/* 确保Font Awesome图标能正确显示 */
.fa,
.fas,
.far,
.fal,
.fab {
    display: inline-block;
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
    line-height: 1;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 统一服务卡片内部元素间距 */
.service-card h3 {
    margin: 0 0 12px;
    font-size: 20px;
    font-weight: 600;
    color: #1a202c;
    line-height: 1.3;
}

.service-card .service-desc {
    margin-bottom: 15px;
    font-size: 15px;
    line-height: 1.5;
    color: #4a5568;
    min-height: 60px;
}

.service-card .service-price {
    margin-bottom: 15px;
    min-height: 50px;
}

.service-card .service-info {
    margin-bottom: 20px;
    min-height: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.service-card .cta-btn {
    margin: 0;
    width: 100%;
    max-width: 250px;
}

.service-card .service-promise,
.service-card .service-upgrade,
.service-card .service-note {
    margin: 5px 0;
    font-size: 14px;
    line-height: 1.5;
    color: #6b7280;
    text-align: center;
}

.service-icon {
    width: 75px;
    height: 75px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    box-shadow: 0 6px 24px rgba(59, 130, 246, 0.3);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover .service-icon {
    transform: translateY(-5px);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.4);
}

.service-icon i {
    font-size: 32px;
    color: white;
    display: block;
}

.service-price {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover .service-price {
    transform: scale(1.05);
}

.service-price span {
    display: block;
    text-align: center;
}

/* 限时优惠样式 */
.limited-time-offer {
    color: #ef4444 !important;
    font-weight: 600;
    background: none !important;
    -webkit-background-clip: unset !important;
    -webkit-text-fill-color: #ef4444 !important;
}

.limited-time-offer span {
    color: #ef4444 !important;
    font-weight: bold;
    background: none !important;
    -webkit-background-clip: unset !important;
    -webkit-text-fill-color: #ef4444 !important;
}

/* 服务流程 */
.process {
    padding: 120px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    position: relative;
}

.process-steps {
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    gap: 30px;
    flex-wrap: wrap;
    max-width: 1000px;
    margin: 0 auto;
}

.process-step {
    flex: 1;
    min-width: 220px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    padding: 35px 25px;
    border-radius: 20px;
    text-align: center;
    position: relative;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 320px;
}

.process-step:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 36px rgba(59, 130, 246, 0.12);
    border-color: #3b82f6;
}

.step-number {
    position: relative;
    top: -45px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    margin-bottom: 0;
    box-shadow: 0 6px 24px rgba(59, 130, 246, 0.3);
    border: 3px solid white;
    z-index: 10;
}

.step-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    flex-grow: 1;
    justify-content: flex-start;
}

.process-step i {
    font-size: 44px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 20px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: block;
}

.process-step:hover i {
    transform: scale(1.1);
}

.process-step h3 {
    font-size: 20px;
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 15px;
    letter-spacing: -0.01em;
    text-align: center;
    width: 100%;
}

.process-step p {
    font-size: 15px;
    color: #4a5568;
    line-height: 1.6;
    margin: 0;
    text-align: center;
    width: 100%;
}

.process-arrow {
    display: none;
}

@media (min-width: 768px) {
    .process-arrow {
        display: none;
    }
}

/* 案例与信任背书 */
.testimonials {
    padding: 120px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    position: relative;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    padding: 35px 30px;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 15px;
    font-size: 80px;
    color: rgba(59, 130, 246, 0.1);
    font-family: serif;
    line-height: 1;
}

.testimonial-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
    border-color: #3b82f6;
}

.testimonial-text {
    font-size: 16px;
    color: #4a5568;
    margin-bottom: 20px;
    line-height: 1.6;
    font-style: italic;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    font-size: 14px;
    color: #3b82f6;
    font-weight: 600;
    text-align: right;
    position: relative;
    z-index: 1;
}

/* 对比模块 */
.comparison {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-top: 60px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.comparison-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.comparison-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.comparison-card h3 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 30px;
    text-align: center;
}

.comparison-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.comparison-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 0;
    border-bottom: 1px solid #f1f5f9;
    font-size: 16px;
    line-height: 1.6;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.comparison-list li:hover {
    padding-left: 10px;
    background: rgba(59, 130, 246, 0.04);
    border-radius: 8px;
}

/* FAQ 区 */
.faq {
    padding: 120px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    position: relative;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 15px;
    border: 1px solid rgba(226, 232, 240, 0.6);
    border-radius: 12px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.faq-question {
    width: 100%;
    padding: 20px 30px;
    background-color: transparent;
    border: none;
    text-align: left;
    font-size: 18px;
    font-weight: 500;
    color: #1a202c;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-question:hover {
    background: rgba(59, 130, 246, 0.04);
}

.faq-question i {
    font-size: 16px;
    color: #3b82f6;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-answer {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(59, 130, 246, 0.04);
}

.faq-answer p {
    padding: 20px 0;
    color: #4a5568;
    margin: 0;
    line-height: 1.6;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 30px 20px;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

/* 关于我们 */
.about {
    padding: 120px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

/* 页尾 */
.footer {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: white;
    padding: 60px 0 30px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #60a5fa);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.footer-section h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #f1f5f9;
}

.footer-section p {
    color: #cbd5e0;
    margin-bottom: 15px;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul a {
    color: #cbd5e0;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
    padding: 5px 0;
    position: relative;
}

.footer-section ul a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #3b82f6;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.footer-section ul a:hover {
    color: #f1f5f9;
    transform: translateX(5px);
}

.footer-section ul a:hover::before {
    width: 100%;
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.social-links a {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #cbd5e0;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.social-links a:hover {
    color: #f1f5f9;
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #334155;
    color: #94a3b8;
    font-size: 14px;
    max-width: 1000px;
    margin: 0 auto;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .values-grid,
    .services-grid,
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-steps {
        flex-direction: column;
        align-items: stretch;
    }
    
    .process-step {
        min-width: auto;
    }
    
    .process-arrow {
        transform: rotate(90deg);
        margin: 20px 0;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
        gap: 20px;
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .values-grid,
    .services-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        flex-direction: column;
        gap: 20px;
    }
    
    .form {
        padding: 30px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-image .image-placeholder {
        width: 300px;
        height: 225px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .values,
    .services,
    .process,
    .testimonials,
    .faq,
    .about,
    .contact-form {
        padding: 60px 0;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}