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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif, 'Microsoft YaHei', '微软雅黑';
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

/* ========== 转场遮罩层动画 ========== */
@keyframes maskWipeRight {
    from {
        clip-path: inset(0 100% 0 0);
    }
    to {
        clip-path: inset(0 0 0 0);
    }
}

@keyframes maskWipeLeft {
    from {
        clip-path: inset(0 0 0 100%);
    }
    to {
        clip-path: inset(0 0 0 0);
    }
}

@keyframes maskWipeDown {
    from {
        clip-path: inset(100% 0 0 0);
    }
    to {
        clip-path: inset(0 0 0 0);
    }
}

@keyframes maskWipeUp {
    from {
        clip-path: inset(0 0 100% 0);
    }
    to {
        clip-path: inset(0 0 0 0);
    }
}

@keyframes maskCircle {
    from {
        clip-path: circle(0% at 50% 50%);
    }
    to {
        clip-path: circle(100% at 50% 50%);
    }
}

@keyframes maskDiagonal {
    from {
        clip-path: polygon(0 0, 0 0, 0 100%, 0 100%);
    }
    to {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.98);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fadeOutScale {
    from {
        opacity: 1;
        transform: scale(1);
    }
    to {
        opacity: 0;
        transform: scale(0.98);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOutLeft {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(-100px);
    }
}

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

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* ========== 转场遮罩层 ========== */
.transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    z-index: 9999;
    pointer-events: none;
    display: none;
}

.transition-overlay.active {
    display: block;
}

.transition-overlay.wipe-right {
    animation: maskWipeRight 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.transition-overlay.wipe-left {
    animation: maskWipeLeft 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.transition-overlay.wipe-down {
    animation: maskWipeDown 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.transition-overlay.wipe-up {
    animation: maskWipeUp 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.transition-overlay.circle {
    animation: maskCircle 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.transition-overlay.diagonal {
    animation: maskDiagonal 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

/* ========== 加载进度条 ========== */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, #ff6b6b, #ff9f43, #667eea);
    background-size: 200% 100%;
    z-index: 10000;
    width: 0;
    animation: none;
}

.progress-bar.loading {
    animation: progressMove 2s ease-in-out infinite;
}

@keyframes progressMove {
    0% {
        width: 0;
    }
    50% {
        width: 70%;
    }
    100% {
        width: 100%;
    }
}

/* ========== 导航栏 ========== */
nav {
    background: linear-gradient(135deg, rgba(30, 60, 114, 0.95) 0%, rgba(42, 82, 152, 0.95) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    animation: slideInDown 0.6s ease-out;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

nav.scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    letter-spacing: 0.5px;
    cursor: pointer;
}

.logo::before {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #ff6b6b, #ff9f43);
    transition: width 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.logo:hover::before {
    width: 100%;
}

.logo:hover {
    transform: scale(1.05);
    text-shadow: 0 0 15px rgba(255, 107, 107, 0.5);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links li {
    position: relative;
}

.nav-links a {
    color: white;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    font-size: 0.95rem;
    position: relative;
    display: inline-block;
    padding-bottom: 0.5rem;
    font-weight: 500;
    letter-spacing: 0.3px;
    cursor: pointer;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #ff6b6b, #ff9f43);
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform: translateX(-50%);
}

.nav-links a:hover::after {
    width: 100%;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 10px rgba(255, 107, 107, 0.5);
}

.nav-links a:hover {
    opacity: 1;
    transform: translateY(-2px);
}

.nav-links a.active {
    opacity: 1;
}

.nav-links a.active::after {
    width: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(90deg, #ff6b6b, #ff9f43);
    box-shadow: 0 0 10px rgba(255, 107, 107, 0.5);
}

/* ========== 主内容区域 ========== */
main {
    animation: fadeInScale 0.6s ease-out;
}

main.transitioning {
    animation: fadeOutScale 0.4s ease-out forwards;
}

/* ========== 英雄部分 ========== */
.hero {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 6rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 107, 107, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(102, 126, 234, 0.15) 0%, transparent 50%);
    pointer-events: none;
    animation: pulse 4s ease-in-out infinite;
}

.hero-container {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    animation: slideInUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.1s both;
    letter-spacing: -1px;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: slideInUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
    font-weight: 300;
}

.hero .cta-button {
    animation: slideInUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.5s both;
}

/* ========== 通用容器 ========== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 4rem 2rem;
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    color: #1e3c72;
    margin-bottom: 3rem;
    font-weight: 700;
    animation: slideInUp 0.6s ease-out;
    letter-spacing: -0.5px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    animation: slideInUp 0.6s ease-out 0.1s both;
    font-weight: 300;
}

/* ========== 卡片样式 ========== */
.card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    animation: scaleIn 0.6s ease-out;
    position: relative;
    overflow: hidden;
}

.card::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 0.6s ease;
}

.card:hover::before {
    left: 100%;
}

.card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.15);
}

.card h3 {
    color: #1e3c72;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    z-index: 1;
}

.card:hover h3 {
    color: #ff6b6b;
    transform: translateX(5px);
}

.card p {
    color: #666;
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

/* ========== 网格布局 ========== */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.grid > * {
    animation: scaleIn 0.6s ease-out;
}

.grid > *:nth-child(1) { animation-delay: 0s; }
.grid > *:nth-child(2) { animation-delay: 0.1s; }
.grid > *:nth-child(3) { animation-delay: 0.2s; }
.grid > *:nth-child(4) { animation-delay: 0.3s; }
.grid > *:nth-child(5) { animation-delay: 0.4s; }
.grid > *:nth-child(6) { animation-delay: 0.5s; }

/* ========== 业务卡片 ========== */
.business-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
    animation: slideInUp 0.6s ease-out;
}

.business-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.business-card:hover::before {
    left: 100%;
}

.business-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.15);
}

.business-card h3 {
    color: #1e3c72;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    z-index: 1;
}

.business-card:hover h3 {
    color: #ff6b6b;
    transform: translateX(5px);
}

.business-card ul {
    list-style: none;
    padding-left: 0;
    position: relative;
    z-index: 1;
}

.business-card li {
    padding: 0.5rem 0;
    color: #555;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.business-card:hover li {
    color: #333;
    padding-left: 8px;
}

.business-card li:last-child {
    border-bottom: none;
}

.business-card li:before {
    content: "✓ ";
    color: #2a5298;
    font-weight: bold;
    margin-right: 0.5rem;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.business-card:hover li:before {
    color: #ff6b6b;
    transform: scale(1.3);
}

/* ========== 技术卡片 ========== */
.tech-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    animation: slideInUp 0.6s ease-out;
    position: relative;
    overflow: hidden;
}

.tech-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(42, 82, 152, 0.1) 0%, rgba(255, 107, 107, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.tech-card:hover::after {
    opacity: 1;
}

.tech-card:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.15);
}

.tech-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: inline-block;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    animation: pulse 2s ease-in-out infinite;
}

.tech-card:hover .tech-icon {
    transform: scale(1.3) rotate(15deg);
    animation: none;
}

.tech-card h3 {
    color: #1e3c72;
    margin-bottom: 0.8rem;
    transition: color 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    z-index: 1;
}

.tech-card:hover h3 {
    color: #ff6b6b;
}

.tech-card p {
    color: #666;
    font-size: 0.95rem;
    position: relative;
    z-index: 1;
}

/* ========== 权益卡片 ========== */
.benefit-item {
    padding: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    animation: slideInUp 0.6s ease-out;
    position: relative;
    overflow: hidden;
}

.benefit-item::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.benefit-item:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
}

.benefit-item:hover::before {
    opacity: 1;
}

.benefit-item h4 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    position: relative;
    z-index: 1;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.benefit-item:hover h4 {
    transform: scale(1.1);
}

.benefit-item p {
    font-size: 0.9rem;
    opacity: 0.95;
    position: relative;
    z-index: 1;
}

/* ========== 信息卡片 ========== */
.info-card {
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #2a5298;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    animation: slideInUp 0.6s ease-out;
    position: relative;
}

.info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, rgba(42, 82, 152, 0.1), transparent);
    transition: width 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.info-card:hover::before {
    width: 100%;
}

.info-card h3 {
    color: #1e3c72;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
}

.info-card p {
    font-size: 0.95rem;
    color: #666;
    position: relative;
    z-index: 1;
}

.info-card:hover {
    transform: translateX(8px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

/* ========== 愿景部分 ========== */
.vision {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    text-align: center;
}

.vision h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.vision-item {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    animation: scaleIn 0.6s ease-out;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.vision-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.2) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.vision-item:hover::before {
    opacity: 1;
}

.vision-item:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-10px) scale(1.05);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.vision-item h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    z-index: 1;
}

.vision-item:hover h3 {
    transform: scale(1.15);
    color: #ffeb3b;
}

/* ========== 联系信息 ========== */
.contact-item {
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    animation: slideInUp 0.6s ease-out;
    position: relative;
    border-top: 3px solid transparent;
}

.contact-item:hover {
    transform: translateY(-12px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
    border-top-color: #ff6b6b;
}

.contact-item h3 {
    color: #1e3c72;
    margin-bottom: 0.8rem;
    transition: color 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.contact-item:hover h3 {
    color: #ff6b6b;
}

.contact-item p {
    color: #666;
    line-height: 1.8;
}

/* ========== 表单样式 ========== */
.form-group {
    margin-bottom: 1.5rem;
    animation: slideInUp 0.6s ease-out;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #1e3c72;
    font-weight: 600;
    transition: color 0.3s ease;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    background: rgba(255, 255, 255, 0.8);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #2a5298;
    box-shadow: 0 0 0 4px rgba(42, 82, 152, 0.15);
    transform: scale(1.02);
    background: white;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-submit {
    background: linear-gradient(135deg, #ff6b6b 0%, #ff9f43 100%);
    color: white;
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    font-size: 1rem;
    position: relative;
    overflow: hidden;
    animation: slideInUp 0.6s ease-out;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.form-submit::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.form-submit:hover::before {
    width: 400px;
    height: 400px;
}

.form-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(255, 107, 107, 0.4);
}

.form-submit:active {
    transform: translateY(-1px);
}

/* ========== 页脚 ========== */
footer {
    background: #1e3c72;
    color: white;
    text-align: center;
    padding: 2rem;
    font-size: 0.9rem;
    animation: fadeIn 0.8s ease-out;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

footer p {
    margin: 0.5rem 0;
    transition: all 0.3s ease;
}

footer p:first-child {
    margin-top: 0;
}

footer p:last-child {
    opacity: 0.8;
    margin-top: 0.5rem;
}

footer:hover p {
    opacity: 1;
}

/* ========== 强调文本 ========== */
.highlight {
    color: #ff6b6b;
    font-weight: 600;
    transition: all 0.3s ease;
}

/* ========== 背景颜色 ========== */
.bg-light {
    background-color: #f8f9fa;
}

.bg-white {
    background-color: white;
}

.bg-gradient {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.bg-dark {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
}

/* ========== CTA 按钮 ========== */
.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, #ff6b6b 0%, #ff9f43 100%);
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: left 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.cta-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(255, 107, 107, 0.4);
}

.cta-button:active {
    transform: translateY(-1px);
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .nav-links {
        gap: 1rem;
        font-size: 0.85rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .card:hover {
        transform: translateY(-8px) scale(1.01);
    }

    .business-card:hover {
        transform: translateY(-8px) scale(1.01);
    }

    .tech-card:hover {
        transform: translateY(-8px) scale(1.02);
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.5rem;
    }

    .hero p {
        font-size: 0.9rem;
    }

    .section {
        padding: 2rem 1rem;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 2rem;
    }

    .nav-links {
        gap: 0.5rem;
        font-size: 0.75rem;
    }

    .card {
        padding: 1.5rem;
    }

    .business-card {
        padding: 1.5rem;
    }
}