/* ===================================
   Perfect Homepage - Business Style
   =================================== */

/* 全局变量 */
:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --accent: #f59e0b;
    --bg-light: #ffffff;
    --bg-gray: #f8fafc;
    --bg-gray-dark: #f1f5f9;
    --text-dark: #1e293b;
    --text-gray: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* ===================================
   Hero Section - Full Image Background
   =================================== */

.main-contain {
    overflow-x: hidden;
}

.hero-banner {
    position: relative;
    width: 100vw;
    height: 100vh;
    background: #f8fafc;
    overflow: hidden;
    display: flex;
    align-items: center;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
}

.hero-background-image {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.35) 0%, rgba(0, 0, 0, 0.2) 40%, transparent 70%);
    z-index: 1;
}

.hero-banner-container {
    position: relative;
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 150px;
    z-index: 2;
}

.hero-text {
    color: #fff;
    max-width: 700px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.15);
    border-left: 3px solid #fbbf24;
    margin-bottom: 50px;
    font-size: 12px;
    font-weight: 700;
    color: #fbbf24;
    text-transform: uppercase;
    letter-spacing: 3px;
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: #fbbf24;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-size: 72px;
    font-weight: 800;
    line-height: 1;
    margin: 0 0 35px 0;
    letter-spacing: -2px;
    color: #fff;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-title span {
    background: linear-gradient(135deg, #ffe066 0%, #ffd700 20%, #ffb800 40%, #ff9500 60%, #ffb800 80%, #ffd700 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 2px 10px rgba(255, 183, 0, 0.5)) drop-shadow(0 0 20px rgba(255, 215, 0, 0.3));
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.hero-subtitle {
    font-size: 18px;
    line-height: 1.9;
    margin: 0 0 55px 0;
    color: rgba(255, 255, 255, 0.9);
    max-width: 520px;
    font-weight: 400;
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.2);
}

.hero-buttons {
    display: flex;
    gap: 24px;
    margin-bottom: 80px;
}

.hero-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 20px 50px;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.hero-btn-primary {
    background: #fbbf24;
    color: #1e293b;
    box-shadow: 0 20px 50px rgba(251, 191, 36, 0.4);
}

.hero-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 25px 60px rgba(251, 191, 36, 0.5);
}

.hero-btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.hero-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}

.hero-stats {
    display: flex;
    gap: 80px;
    padding-top: 50px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-stat-value {
    font-size: 48px;
    font-weight: 900;
    color: #fbbf24;
    line-height: 1;
    margin-bottom: 10px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.hero-stat-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
}

/* ===================================
   Section Common Styles
   =================================== */

.section {
    padding: 100px 0;
}

.section-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 80px;
}

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

.section-label {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(37, 99, 235, 0.1);
    color: #2563eb;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    border-radius: 4px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    color: var(--text-dark);
    margin: 0 0 16px 0;
    letter-spacing: -1px;
}

.section-description {
    font-size: 18px;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ===================================
   Features Section
   =================================== */

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    padding: 40px 30px;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: 12px;
    text-align: center;
    transition: box-shadow 0.3s ease;
}

.feature-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: #fff;
}

.feature-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 12px 0;
}

.feature-description {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.6;
}

/* ===================================

   Responsive Design
   =================================== */

@media (max-width: 1600px) {
    .hero-title {
        font-size: 68px;
    }
    
    .hero-banner-container {
        padding: 0 120px;
    }
}

@media (max-width: 1400px) {
    .hero-title {
        font-size: 60px;
    }
    
    .hero-banner-container {
        padding: 0 100px;
    }
}

@media (max-width: 1200px) {
    .hero-title {
        font-size: 52px;
        letter-spacing: -1.5px;
    }
    
    .hero-banner-container {
        padding: 0 80px;
    }
    
    .section-container {
        padding: 0 60px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .hero-banner {
        height: auto;
        min-height: 100vh;
    }
    
    .hero-banner::before {
        background: linear-gradient(to bottom, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.3) 50%, rgba(0, 0, 0, 0.5) 100%);
    }
    
    .hero-text {
        max-width: 100%;
        padding: 80px 0;
    }
    
    .hero-subtitle {
        max-width: 100%;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-banner-container {
        padding: 0 40px;
    }
    
    .hero-text {
        padding: 60px 0;
        text-align: center;
    }
    
    .hero-badge {
        align-self: center;
    }
    
    .hero-title {
        font-size: 42px;
        letter-spacing: -1px;
    }
    
    .hero-title span {
        filter: drop-shadow(0 1px 6px rgba(255, 183, 0, 0.4)) drop-shadow(0 0 12px rgba(255, 215, 0, 0.25));
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-stats {
        gap: 50px;
        flex-wrap: wrap;
    }
    
    .hero-stat-value {
        font-size: 40px;
    }
    
    .section {
        padding: 70px 0;
    }
    
    .section-container {
        padding: 0 30px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .hero-banner-container {
        padding: 0 30px;
    }
    
    .hero-text {
        padding: 50px 0;
    }
    
    .hero-title {
        font-size: 36px;
        letter-spacing: -1px;
    }
    
    .hero-title span {
        filter: drop-shadow(0 1px 4px rgba(255, 183, 0, 0.35)) drop-shadow(0 0 8px rgba(255, 215, 0, 0.2));
    }
    
    .hero-badge {
        font-size: 11px;
        padding: 8px 16px;
    }
    
    .hero-subtitle {
        font-size: 15px;
        line-height: 1.7;
    }
    
    .hero-stats {
        gap: 40px;
    }
    
    .hero-stat-value {
        font-size: 36px;
    }
}

@media (max-width: 480px) {
    .hero-banner-container {
        padding: 0 25px;
    }
    
    .hero-text {
        padding: 40px 0;
    }
    
    .hero-title {
        font-size: 32px;
        letter-spacing: -0.5px;
    }
    
    .hero-title span {
        filter: drop-shadow(0 1px 3px rgba(255, 183, 0, 0.3));
    }
    
    .hero-badge {
        font-size: 10px;
        padding: 6px 14px;
        margin-bottom: 35px;
    }
    
    .hero-subtitle {
        font-size: 14px;
        line-height: 1.7;
        margin-bottom: 40px;
    }
    
    .hero-buttons {
        gap: 14px;
        margin-bottom: 50px;
    }
    
    .hero-btn {
        padding: 14px 32px;
        font-size: 12px;
        letter-spacing: 1px;
    }
    
    .hero-stats {
        gap: 30px;
        padding-top: 35px;
    }
    
    .hero-stat-value {
        font-size: 32px;
    }
    
    .hero-stat-label {
        font-size: 10px;
    }
}

@media (max-width: 375px) {
    .hero-banner-container {
        padding: 0 20px;
    }
    
    .hero-title {
        font-size: 28px;
        letter-spacing: -0.5px;
    }
    
    .hero-subtitle {
        font-size: 13px;
    }
    
    .hero-btn {
        padding: 12px 28px;
        font-size: 11px;
    }
    
    .hero-stat-value {
        font-size: 28px;
    }
}