/* ========================================
   梦权益商城系统 - 样式文件
   ======================================== */

/* CSS 变量 */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --accent: #f59e0b;
    --success: #10b981;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-white: #ffffff;
    --bg-light: #f9fafb;
    --bg-dark: #111827;
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
    --gradient-secondary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --border-radius: 16px;
    --transition: all 0.3s ease;
}

/* 重置与基础 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* 文字渐变 */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn i {
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.39);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(99, 102, 241, 0.23);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* 滚动动画 */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Hero 区域 - 50vh 高度
   ======================================== */
.hero {
    position: relative;
    min-height: 50vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 40% 80%, rgba(245, 158, 11, 0.08) 0%, transparent 40%);
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 1;
    width: 100%;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 2rem 0;
}

.hero-text {
    color: white;
}

.hero-badge {
    display: inline-flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.hero-badge span {
    padding: 0.375rem 1rem;
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.hero-badge span:first-child {
    background: var(--gradient-primary);
    border-color: transparent;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-title span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 0.25rem;
}

.hero-image {
    position: relative;
}

.hero-image img {
    border-radius: var(--border-radius);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ========================================
   通用区块
   ======================================== */
.section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.125rem;
    text-align: center;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 3rem;
}

.title-highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-white {
    background: var(--bg-white);
}

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

.bg-dark {
    background: var(--bg-dark);
    color: white;
}

.text-primary {
    color: var(--primary);
}

/* ========================================
   功能卡片网格
   ======================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    padding: 1.75rem;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
    color: var(--primary);
    margin-bottom: 1.25rem;
}

.feature-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-desc {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.feature-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.feature-tag {
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
    color: var(--primary);
}

/* ========================================
   产品展示
   ======================================== */
.products {
    background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-light) 100%);
}

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

.products-image {
    position: relative;
}

.products-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-xl);
}

.products-badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    padding: 0.5rem 1rem;
    background: var(--gradient-primary);
    color: white;
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.products-content h3 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.products-content > p {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
}

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

.product-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.product-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(236, 72, 153, 0.15) 100%);
    color: var(--primary);
    font-size: 1.125rem;
}

.product-info h4 {
    font-size: 0.9375rem;
    font-weight: 700;
    margin-bottom: 0.125rem;
}

.product-info span {
    font-size: 0.8125rem;
    color: var(--text-light);
}

/* ========================================
   部署方式
   ======================================== */
.deployment {
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    color: white;
}

.deployment .section-title,
.deployment .section-subtitle {
    color: white;
}

.deployment .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

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

.deployment-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.deployment-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.2);
}

.deployment-card.featured {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.3) 0%, rgba(236, 72, 153, 0.3) 100%);
    border-color: rgba(255, 255, 255, 0.3);
}

.deployment-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.deployment-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.1);
    font-size: 1.5rem;
}

.deployment-title {
    font-size: 1.25rem;
    font-weight: 700;
}

.deployment-desc {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.deployment-features {
    display: grid;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.deployment-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9375rem;
}

.deployment-feature i {
    color: var(--success);
}

.deployment-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
}

.deployment-price small {
    display: block;
    font-size: 0.8125rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 0.25rem;
}

/* ========================================
   货源对接
   ======================================== */
.sourcing {
    background: var(--bg-white);
}

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

.sourcing-content h3 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.sourcing-content > p {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.sourcing-steps {
    display: grid;
    gap: 1.25rem;
}

.sourcing-step {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.step-number {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    font-weight: 700;
    font-size: 0.9375rem;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.125rem;
}

.step-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.sourcing-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-xl);
}

/* ========================================
   技术优势
   ======================================== */
.tech {
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.tech-card {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.tech-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.tech-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
    color: var(--primary);
    font-size: 1.5rem;
    margin: 0 auto 1.25rem;
}

.tech-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.tech-desc {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========================================
   合作伙伴
   ======================================== */
.partners {
    padding: 3rem 0;
    background: var(--bg-dark);
    color: white;
}

.partners-title {
    text-align: center;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 2rem;
}

.partners-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.partner-logo {
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.partner-logo:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

/* ========================================
   成功案例
   ======================================== */
.cases {
    background: var(--bg-white);
}

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

.case-card {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.case-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-tag {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.375rem 0.875rem;
    background: var(--gradient-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50px;
}

.case-content {
    padding: 1.5rem;
}

.case-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.case-desc {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.case-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.case-stat {
    text-align: center;
}

.case-stat-value {
    font-size: 1.375rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.case-stat-label {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 0.125rem;
}

/* ========================================
   合作流程
   ======================================== */
.process {
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

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

.process-step::after {
    content: '';
    position: absolute;
    top: 40px;
    right: -1rem;
    width: calc(100% - 80px);
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0.3;
}

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

.process-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    font-size: 1.75rem;
    margin: 0 auto 1.25rem;
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.35);
}

.process-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.process-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ========================================
   CTA 区域
   ======================================== */
.cta {
    padding: 5rem 0;
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    color: white;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.25rem;
}

.cta-desc {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-showcase,
    .sourcing-showcase {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .process-step::after {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: 4rem 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .deployment-grid {
        grid-template-columns: 1fr;
    }
    
    .products-list {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .cta-title {
        font-size: 1.75rem;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn-lg {
        width: 100%;
    }
}