/* ====== HERO SECTION ====== */
h1 {
    font-size: 3.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

h2 {
    font-size: 2.5rem;
    position: relative;
    display: inline-block;
    margin-bottom: 2.5rem;
}

h2:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

h3 {
    font-size: 1.75rem;
}

.hero {
    background: var(--gradient-light);
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.hero-text p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: var(--dark-secondary);
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.hero-stats {
    display: flex;
    justify-content: space-between;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-light);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    display: block;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ====== SERVICES SECTION ====== */
.services {
    background: var(--light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--gray-light);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: rgba(0, 102, 204, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.75rem;
    color: var(--primary);
}

.service-card h3 {
    margin-bottom: 1rem;
}

.service-card p {
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

/* ====== TAX RATES SECTION ====== */
.tax-rates {
    background: var(--light-bg);
}

.tax-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.tax-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary);
}

.tax-card h3 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.tax-rate {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

/* ====== PROCESS SECTION ====== */
.process {
    position: relative;
    background: white;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    margin-top: 3rem;
    position: relative;
}

.process-steps:before {
    content: '';
    position: absolute;
    top: 40px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--gray-light);
    z-index: 1;
}

.process-step {
    text-align: center;
    position: relative;
    z-index: 2;
    flex: 1;
}

.step-number {
    width: 80px;
    height: 80px;
    background: white;
    border: 3px solid var(--gray-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary);
    margin: 0 auto 1.5rem;
    transition: var(--transition);
    position: relative;
    animation: pulse-step 2s infinite ease-in-out;
}

@keyframes pulse-step {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(0, 102, 204, 0.4);
    }
    50% { 
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(0, 102, 204, 0);
    }
}

.process-step:hover .step-number {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    animation: none;
    transform: scale(1.1);
}

.step-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

/* ====== ABOUT US SECTION ====== */
.about {
    background: var(--light-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image img {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.team-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.team-badge {
    background: rgba(0, 102, 204, 0.1);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid rgba(0, 102, 204, 0.2);
}

/* ====== KNOWLEDGE BASE SECTION ====== */
.knowledge {
    background: white;
}

.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.knowledge-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.knowledge-image {
    height: 200px;
    overflow: hidden;
}

.knowledge-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.knowledge-card:hover .knowledge-image img {
    transform: scale(1.05);
}

.knowledge-content {
    padding: 1.5rem;
}

.knowledge-category {
    display: inline-block;
    background: rgba(0, 102, 204, 0.1);
    color: var(--primary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.knowledge-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.knowledge-meta {
    display: flex;
    justify-content: space-between;
    color: var(--gray);
    font-size: 0.875rem;
    margin-top: 1rem;
}

/* ====== CTA SECTION ====== */
.cta {
    background: var(--gradient-primary);
    color: white;
    text-align: center;
    padding: 4rem 0;
}

.cta h2 {
    color: white;
    margin-bottom: 1rem;
}

.cta h2:after {
    background: white;
    left: 50%;
    transform: translateX(-50%);
}

.cta p {
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto 2rem;
}

.cta .btn {
    background: white;
    color: var(--primary);
}

.cta .btn:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-3px);
}

/* ====== RESPONSIVE (独享部分) ====== */
@media (max-width: 1024px) {
    h1 {
        font-size: 3rem;
    }
    
    h2 {
        font-size: 2.25rem;
    }
    
    .services-grid,
    .tax-grid,
    .knowledge-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-content {
        gap: 2rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .process-steps {
        flex-direction: column;
        gap: 2rem;
    }
    
    .process-steps:before {
        display: none;
    }
    
    .services-grid,
    .tax-grid,
    .knowledge-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
    
    .hero {
        padding: 4rem 0;
    }
    
    .service-card,
    .tax-card,
    .knowledge-card {
        padding: 1.5rem;
    }
    
    .text-center {
        text-align: center;
    }
}