/* ========================================
   中盛联和 - 全新设计
   ======================================== */

:root {
    --primary: #3b82f6;
    --primary-light: #60a5fa;
    --primary-dark: #2563eb;
    --accent: #06b6d4;
    
    --text-dark: #0f172a;
    --text-body: #334155;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-soft: #f1f5f9;
    --bg-dark: #0f172a;
    
    --border-light: #e2e8f0;
    --border-soft: #cbd5e1;
    
    --gradient-card: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
    --gradient-dark: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.3);
    
    --radius: 12px;
    --radius-lg: 24px;
    --radius-xl: 32px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-white);
    color: var(--text-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* ========================================
   动画
   ======================================== */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.05); }
}

/* ========================================
   导航栏
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 60px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    z-index: 1000;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-card);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 22px;
    font-weight: 800;
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
}

.logo-text {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-dark);
}

.nav {
    display: flex;
    gap: 8px;
}

.nav-item {
    padding: 12px 24px;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius);
    transition: all 0.3s ease;
}

.nav-item:hover {
    color: var(--primary);
    background: rgba(59, 130, 246, 0.08);
}

.nav-cta {
    padding: 14px 32px;
    background: var(--gradient-card);
    color: white;
    text-decoration: none;
    font-size: 15px;
    font-weight: 700;
    border-radius: var(--radius);
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.35);
}

.nav-cta:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

/* ========================================
   Hero区域
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 60px 120px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 50%, #d1d8e0 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 60%);
    border-radius: 50%;
    animation: pulse 6s ease-in-out infinite;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 650px;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 22px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 100px;
    font-size: 14px;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 32px;
    box-shadow: var(--shadow-sm);
}

.hero-tag::before {
    content: '';
    width: 10px;
    height: 10px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: 64px;
    font-weight: 900;
    color: var(--text-dark);
    line-height: 1.05;
    margin-bottom: 28px;
    letter-spacing: -2px;
}

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

.hero-desc {
    font-size: 20px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 48px;
    max-width: 520px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.btn-primary {
    padding: 18px 40px;
    background: var(--gradient-card);
    color: white;
    text-decoration: none;
    font-size: 17px;
    font-weight: 700;
    border-radius: var(--radius);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.35);
}

.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    padding: 18px 40px;
    background: white;
    color: var(--text-dark);
    text-decoration: none;
    font-size: 17px;
    font-weight: 700;
    border-radius: var(--radius);
    border: 2px solid var(--border-light);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.hero-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 50px;
}

.hero-image {
    width: 100%;
    max-width: 520px;
    aspect-ratio: 1;
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    animation: float 6s ease-in-out infinite;
}

.hero-image i {
    font-size: 140px;
    background: var(--gradient-card);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-stats-bar {
    display: flex;
    gap: 0;
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-lg);
    padding: 24px 32px;
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-stat-item {
    text-align: center;
    padding: 0 28px;
    border-right: 1px solid var(--border-light);
}

.hero-stat-item:last-child {
    border-right: none;
}

.hero-stat-value {
    font-size: 40px;
    font-weight: 900;
    background: var(--gradient-card);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    line-height: 1;
}

.hero-stat-label {
    font-size: 15px;
    color: var(--text-muted);
    margin-top: 10px;
    font-weight: 600;
}

/* ========================================
   服务内容
   ======================================== */
.services {
    padding: 140px 60px;
    background: var(--bg-white);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 80px;
}

.section-tag {
    display: inline-block;
    font-size: 14px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 3px;
    margin-bottom: 20px;
    padding: 10px 24px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 100px;
}

.section-title {
    font-size: 48px;
    font-weight: 900;
    color: var(--text-dark);
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.section-desc {
    font-size: 19px;
    color: var(--text-muted);
    line-height: 1.8;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1300px;
    margin: 0 auto;
}

.service-card {
    background: linear-gradient(145deg, #ffffff 0%, #fafbfc 100%);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 40px 28px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-card);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.service-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-12px);
}

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

.service-icon {
    width: 72px;
    height: 72px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    color: var(--primary);
    margin-bottom: 28px;
    transition: all 0.4s ease;
}

.service-card:hover .service-icon {
    background: var(--gradient-card);
    color: white;
    transform: scale(1.1) rotate(5deg);
}

.service-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.service-desc {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.8;
}

/* ========================================
   数据统计
   ======================================== */
.stats {
    padding: 120px 60px;
    background: var(--bg-dark);
    position: relative;
    overflow: hidden;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(6, 182, 212, 0.15) 0%, transparent 50%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.stat-item {
    text-align: center;
    padding: 32px 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s ease;
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
}

.stat-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-card);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: white;
    margin: 0 auto 24px;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.4);
}

.stat-value {
    font-size: 42px;
    font-weight: 900;
    color: white;
    margin-bottom: 12px;
    line-height: 1;
}

.stat-label {
    font-size: 16px;
    color: var(--text-light);
    font-weight: 600;
}

/* ========================================
   业务优势
   ======================================== */
.advantage {
    padding: 140px 60px;
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.advantage-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1300px;
    margin: 0 auto;
    align-items: center;
}

.advantage-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.advantage-item {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: linear-gradient(145deg, #ffffff 0%, #fafbfc 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all 0.4s ease;
    box-shadow: var(--shadow-sm);
}

.advantage-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateX(15px);
}

.advantage-icon {
    width: 64px;
    height: 64px;
    min-width: 64px;
    background: var(--gradient-card);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: white;
    box-shadow: 0 12px 30px rgba(59, 130, 246, 0.35);
}

.advantage-content h3 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.advantage-content p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.7;
}

.advantage-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.advantage-image {
    width: 100%;
    max-width: 480px;
    aspect-ratio: 1;
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.12);
    animation: float 7s ease-in-out infinite;
}

.advantage-image i {
    font-size: 160px;
    background: var(--gradient-card);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   主营业务
   ======================================== */
.business {
    padding: 140px 60px;
    background: var(--bg-white);
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.business-card {
    background: linear-gradient(145deg, #ffffff 0%, #fafbfc 100%);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 36px 20px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.business-card::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-card);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

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

.business-card.featured {
    background: var(--gradient-card);
    border-color: transparent;
    color: white;
    transform: scale(1.08);
    box-shadow: 0 25px 50px rgba(59, 130, 246, 0.4);
}

.business-card.featured .business-percent,
.business-card.featured .business-title,
.business-card.featured .business-desc {
    color: white;
    -webkit-text-fill-color: white;
}

.business-percent {
    font-size: 52px;
    font-weight: 900;
    background: var(--gradient-card);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    line-height: 1;
}

.business-title {
    font-size: 19px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 14px;
}

.business-desc {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ========================================
   团队展示
   ======================================== */
.team {
    padding: 140px 60px;
    background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-light) 100%);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.team-card {
    background: linear-gradient(145deg, #ffffff 0%, #fafbfc 100%);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 36px 20px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.team-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 0;
    background: var(--gradient-card);
    transition: height 0.4s ease;
}

.team-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-12px);
}

.team-card:hover::before {
    height: 5px;
}

.team-card.featured {
    background: var(--gradient-card);
    border-color: transparent;
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.35);
}

.team-card.featured .team-name,
.team-card.featured .team-role,
.team-card.featured .team-desc {
    color: white;
}

.team-avatar {
    width: 96px;
    height: 96px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    color: var(--primary);
    margin: 0 auto 24px;
    transition: all 0.4s ease;
}

.team-card:hover .team-avatar {
    background: var(--gradient-card);
    color: white;
    transform: scale(1.1);
}

.team-card.featured .team-avatar {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.team-name {
    font-size: 19px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.team-role {
    font-size: 14px;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 16px;
    padding: 6px 16px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 100px;
    display: inline-block;
}

.team-card.featured .team-role {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.team-desc {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ========================================
   CTA区域
   ======================================== */
.cta {
    padding: 140px 60px;
    background: var(--gradient-dark);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(59, 130, 246, 0.2) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(6, 182, 212, 0.2) 0%, transparent 50%);
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: 52px;
    font-weight: 900;
    color: white;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.cta-desc {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 48px;
    line-height: 1.8;
}

.cta .btn-primary {
    padding: 20px 48px;
    font-size: 18px;
    box-shadow: 0 15px 40px rgba(59, 130, 246, 0.5);
}

/* ========================================
   页脚
   ======================================== */
.footer {
    background: var(--bg-dark);
    padding: 100px 60px 50px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 80px;
    max-width: 1400px;
    margin: 0 auto 80px;
}

.footer-brand {
    max-width: 360px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 24px;
}

.footer-logo-icon {
    width: 52px;
    height: 52px;
    background: var(--gradient-card);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    font-weight: 800;
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.35);
}

.footer-logo-text {
    font-size: 26px;
    font-weight: 800;
    color: white;
}

.footer-desc {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 32px;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    width: 52px;
    height: 52px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 20px;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-social a:hover {
    background: var(--gradient-card);
    color: white;
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(59, 130, 246, 0.4);
}

.footer-title {
    font-size: 18px;
    font-weight: 800;
    color: white;
    margin-bottom: 28px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-links a {
    font-size: 16px;
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-light);
    transform: translateX(5px);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 50px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
}

.footer-copyright {
    font-size: 15px;
    color: var(--text-light);
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1200px) {
    .services-grid,
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .business-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .header {
        padding: 0 24px;
        height: 72px;
    }
    
    .nav {
        display: none;
    }
    
    .hero {
        padding: 120px 24px 100px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-stats-bar {
        flex-direction: column;
        gap: 24px;
        padding: 28px 32px;
    }
    
    .hero-stat-item {
        border-right: none;
        border-bottom: 1px solid var(--border-light);
        padding: 0 0 24px;
    }
    
    .hero-stat-item:last-child {
        border-bottom: none;
    }
    
    .services,
    .stats,
    .advantage,
    .business,
    .team,
    .cta,
    .footer {
        padding: 80px 24px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .services-grid,
    .stats-grid,
    .business-grid,
    .team-grid,
    .advantage-grid {
        grid-template-columns: 1fr;
    }
    
    .business-card.featured {
        transform: none;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .cta-title {
        font-size: 36px;
    }
}