/* ========================================
   之升化工 - 大气宽屏现代化设计
   专业化工企业视觉风格
   ======================================== */

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

:root {
    /* 专业化工配色方案 - 基于LOGO色调 #2164d4 和 #2cd6f6 */
    --primary-dark: #1a4a8a;      /* 深蓝 - 权威专业 (在#2164d4区间内) */
    --primary-blue: #2164d4;      /* 主深蓝色 - LOGO主色调 */
    --accent-cyan: #25b8d9;       /* 青蓝色 - 现代感 (在#2cd6f6区间内) */
    --accent-teal: #2cd6f6;       /* 亮青蓝色 - LOGO次色调 */
    --warning-amber: #f59e0b;     /* 琥珀色 - 活力警示 */
    --success-emerald: #10b981;   /* 翠绿色 - 成功安全 */
    
    /* 中性色系 */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-600: #4b5563;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* 背景与文字 */
    --bg-primary: #ffffff;
    --bg-secondary: #f0f7fc;      /* 浅蓝灰色背景 */
    --bg-dark: #0f172a;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    
    /* 阴影系统 */
    --shadow-sm: 0 1px 2px 0 rgba(33, 100, 212, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(33, 100, 212, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(33, 100, 212, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(33, 100, 212, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(33, 100, 212, 0.15);
    
    /* 渐变色 - 统一使用LOGO色调区间 */
    --gradient-primary: linear-gradient(135deg, #2164d4 0%, #2cd6f6 100%);
    --gradient-dark: linear-gradient(135deg, #1a4a8a 0%, #2164d4 100%);
    --gradient-accent: linear-gradient(135deg, #25b8d9 0%, #2cd6f6 100%);
    --gradient-warm: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   一级导航
   ======================================== */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

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

.logo-icon {
    font-size: 32px;
    filter: drop-shadow(0 2px 4px rgba(33, 100, 212, 0.3));
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon img {
    max-height: 50px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-dark);
    letter-spacing: -0.5px;
}

.logo-tagline {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
    letter-spacing: 0.5px;
}

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

.nav-item {
    padding: 10px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-item:hover {
    color: var(--primary-blue);
    background: var(--gray-100);
}

.nav-item.active {
    color: var(--primary-blue);
    background: rgba(33, 100, 212, 0.1);
}

.nav-item.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--primary-blue);
    border-radius: 2px;
}

/* ========================================
   BANNER区域（核心优势展示）
   ======================================== */
.hero-banner {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-dark);
    overflow: hidden;
    margin-top: 80px;
}

.banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(37, 184, 217, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(44, 214, 246, 0.2) 0%, transparent 50%),
        linear-gradient(135deg, #1a4a8a 0%, #2164d4 100%);
}

.banner-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="15" fill="rgba(255,255,255,0.03)"/><circle cx="80" cy="80" r="20" fill="rgba(255,255,255,0.03)"/><circle cx="50" cy="50" r="10" fill="rgba(255,255,255,0.03)"/></svg>');
    background-size: 300px 300px;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

.banner-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 0;
}

.deco-element {
    position: absolute;
    opacity: 0.4;
    filter: drop-shadow(0 0 20px currentColor);
}

.deco-molecule {
    top: 15%;
    right: 8%;
    width: 160px;
    height: 160px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="10" fill="%2306b6d4"/><circle cx="20" cy="30" r="8" fill="%2322d3ee"/><circle cx="80" cy="30" r="8" fill="%2322d3ee"/><circle cx="25" cy="70" r="8" fill="%2322d3ee"/><circle cx="75" cy="70" r="8" fill="%2322d3ee"/><line x1="50" y1="50" x2="20" y2="30" stroke="%2367e8f9" stroke-width="3"/><line x1="50" y1="50" x2="80" y2="30" stroke="%2367e8f9" stroke-width="3"/><line x1="50" y1="50" x2="25" y2="70" stroke="%2367e8f9" stroke-width="3"/><line x1="50" y1="50" x2="75" y2="70" stroke="%2367e8f9" stroke-width="3"/></svg>') no-repeat center/contain;
    animation: rotate 15s linear infinite;
    color: #06b6d4;
}

.deco-atom {
    top: 55%;
    left: 3%;
    width: 120px;
    height: 120px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="15" fill="%2334d399"/><circle cx="50" cy="50" r="15" fill="url(%23atomGradient)"/><ellipse cx="50" cy="50" rx="40" ry="40" fill="none" stroke="%236ee7b7" stroke-width="2" stroke-dasharray="6 4"/><ellipse cx="50" cy="50" rx="40" ry="40" fill="none" stroke="%236ee7b7" stroke-width="2" transform="rotate(60 50 50)" stroke-dasharray="6 4"/><ellipse cx="50" cy="50" rx="40" ry="40" fill="none" stroke="%236ee7b7" stroke-width="2" transform="rotate(120 50 50)" stroke-dasharray="6 4"/><circle cx="25" cy="30" r="4" fill="%23fbbf24"/><circle cx="75" cy="30" r="4" fill="%23fbbf24"/><circle cx="35" cy="75" r="4" fill="%23fbbf24"/><circle cx="65" cy="75" r="4" fill="%23fbbf24"/><defs><radialGradient id="atomGradient"><stop offset="0%" stop-color="%2334d399"/><stop offset="100%" stop-color="%2310b981"/></radialGradient></defs></svg>') no-repeat center/contain;
    animation: float-atom 12s ease-in-out infinite;
    color: #34d399;
}

.deco-circle {
    top: 25%;
    left: 15%;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 3px solid rgba(33, 100, 212, 0.6);
    background: radial-gradient(circle, rgba(33, 100, 212, 0.2) 0%, transparent 70%);
    animation: pulse 2s ease-in-out infinite;
    color: #2164d4;
}

.deco-circle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #60a5fa;
    animation: pulse-dot 2s ease-in-out infinite;
}

.deco-wave {
    bottom: 15%;
    right: 15%;
    width: 200px;
    height: 100px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 80"><path d="M0,40 Q50,10 100,40 T200,40" fill="none" stroke="%23c084fc" stroke-width="3" opacity="0.8"/><path d="M0,55 Q50,25 100,55 T200,55" fill="none" stroke="%23d8b4fe" stroke-width="2" opacity="0.6"/><path d="M0,70 Q50,40 100,70 T200,70" fill="none" stroke="%23e9d5ff" stroke-width="2" opacity="0.4"/></svg>') no-repeat center/contain;
    animation: wave 6s ease-in-out infinite;
    color: #a855f7;
}

.deco-chem {
    top: 40%;
    right: 30%;
    width: 80px;
    height: 80px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect x="30" y="20" width="40" height="60" rx="5" fill="%23f87171" opacity="0.8"/><polygon points="50,5 35,20 65,20" fill="%23ef4444" opacity="0.9"/><line x1="50" y1="80" x2="50" y2="95" stroke="%239ca3af" stroke-width="3"/><line x1="35" y1="45" x2="15" y2="40" stroke="%2360a5fa" stroke-width="2"/><line x1="35" y1="55" x2="10" y2="60" stroke="%2360a5fa" stroke-width="2"/></svg>') no-repeat center/contain;
    animation: float-flask 10s ease-in-out infinite;
    color: #f87171;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes float-atom {
    0%, 100% { transform: translateY(0) translateX(0) scale(1); }
    25% { transform: translateY(-25px) translateX(15px) scale(1.05); }
    50% { transform: translateY(0) translateX(30px) scale(1); }
    75% { transform: translateY(25px) translateX(15px) scale(0.95); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.4; box-shadow: 0 0 20px rgba(33, 100, 212, 0.3); }
    50% { transform: scale(1.15); opacity: 0.7; box-shadow: 0 0 40px rgba(33, 100, 212, 0.6); }
}

@keyframes pulse-dot {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.8; }
    50% { transform: translate(-50%, -50%) scale(1.5); opacity: 1; }
}

@keyframes wave {
    0%, 100% { transform: translateX(0) scaleY(1); }
    25% { transform: translateX(-15px) scaleY(1.1); }
    50% { transform: translateX(0) scaleY(0.9); }
    75% { transform: translateX(15px) scaleY(1.1); }
}

@keyframes float-flask {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-20px) rotate(-3deg); }
    50% { transform: translateY(0) rotate(0deg); }
    75% { transform: translateY(20px) rotate(3deg); }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(37, 184, 217, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(37, 184, 217, 0.3);
    border-radius: 20px;
    padding: 8px 16px;
    margin-bottom: 20px;
}

.badge-icon {
    font-size: 1.2rem;
}

.badge-text {
    font-size: 0.875rem;
    color: var(--cyan-400);
    font-weight: 500;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 20px 0;
}

.hero-tags .tag {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    padding: 6px 14px;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
}

.hero-tags .tag:hover {
    background: rgba(37, 184, 217, 0.3);
    color: var(--cyan-400);
}

.banner-content {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    width: 100%;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    color: white;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #ffffff 0%, #e0f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    font-weight: 400;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    padding: 16px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--gradient-accent);
    color: white;
    box-shadow: 0 4px 15px rgba(37, 184, 217, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 184, 217, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.feature-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.feature-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.feature-title {
    font-size: 18px;
    font-weight: 700;
    color: white;
    margin-bottom: 4px;
}

.feature-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   通用区域样式
   ======================================== */
section {
    padding: 100px 0;
}

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

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--accent-cyan);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ========================================
   我们是谁
   ======================================== */
.who-we-are {
    background: var(--bg-primary);
}

.who-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.who-description p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 24px;
    text-indent: 2em;
}

.who-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.who-image {
    position: relative;
}

.who-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-2xl);
}

.who-image::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    background: var(--gradient-accent);
    border-radius: 20px;
    z-index: -1;
    opacity: 0.1;
}

/* ========================================
   我们提供什么
   ======================================== */
.what-we-provide {
    background: var(--bg-secondary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(600px, 1fr));
    gap: 32px;
}

.product-card {
    background: white;
    border-radius: 20px;
    padding: 0;
    box-shadow: var(--shadow-md);
    transition: all 0.4s ease;
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
    display: flex;
    height: 460px;
}

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

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
}

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

.product-left {
    flex: 1;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    text-align: center;
}

.product-right {
    flex: 1;
    border-left: 1px solid var(--gray-200);
    background: var(--bg-secondary);
    padding: 40px;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
}

.product-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.product-icon img {
    width: 140px;
    height: 70px;
    object-fit: contain;
}

.product-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.product-title a {
    color: var(--primary-dark);
    text-decoration: none;
    transition: color 0.3s ease;
}

.product-title a:hover {
    color: var(--primary-blue);
}

.product-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    flex: 1;
}

.product-features {
    list-style: none;
    padding: 0;
}

.product-features li {
    padding: 6px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
}

.product-features li::before {
    content: '✓';
    color: var(--success-emerald);
    font-weight: bold;
    margin-right: 10px;
    font-size: 1rem;
}

.product-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    counter-reset: product-item;
}

.product-item {
    font-size: 0.95rem;
    color: var(--text-secondary);
    padding: 8px 12px;
    border-radius: 6px;
    transition: background 0.3s ease;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
}

.product-item::before {
    counter-increment: product-item;
    content: counter(product-item);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-cyan);
    background: rgba(37, 184, 217, 0.1);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.product-item:hover {
    background: rgba(33, 100, 212, 0.1);
    color: var(--primary-blue);
}

.product-item a {
    color: inherit;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
}

/* ========================================
   为行业解决什么问题
   ======================================== */
.industry-solutions {
    background: var(--bg-primary);
}

.solutions-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.solution-item {
    display: flex;
    gap: 24px;
    padding: 32px;
    background: var(--bg-secondary);
    border-radius: 16px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.solution-item:hover {
    background: white;
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-xl);
    transform: translateX(10px);
}

.solution-icon {
    font-size: 48px;
    flex-shrink: 0;
}

.solution-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.solution-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.solution-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    padding: 6px 12px;
    background: rgba(33, 100, 212, 0.1);
    color: var(--primary-blue);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* ========================================
   公司实力
   ======================================== */
.company-strength {
    background: var(--bg-dark);
    color: white;
}

.company-strength .section-title {
    color: white;
}

.strength-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.strength-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

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

.strength-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.strength-card:hover::before {
    opacity: 0.1;
}

.strength-number {
    font-size: 4rem;
    font-weight: 900;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.strength-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.strength-desc {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* ========================================
   客户评价
   ======================================== */
.customer-reviews {
    background: var(--bg-secondary);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.review-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

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

.review-stars {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.review-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

.review-author {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.author-name {
    font-weight: 700;
    color: var(--primary-dark);
}

.author-company {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ========================================
   行业报告
   ======================================== */
.industry-reports {
    background: var(--bg-primary);
}

.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 32px;
}

.report-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.4s ease;
    border: 1px solid var(--gray-200);
}

.report-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
}

.report-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(37, 184, 217, 0.9);
    backdrop-filter: blur(8px);
    border-radius: 20px;
    padding: 6px 12px;
    font-size: 0.75rem;
    color: white;
}

.badge-icon {
    font-size: 0.875rem;
}

.badge-text {
    font-weight: 600;
    letter-spacing: 0.5px;
}

.report-image {
    height: 240px;
    overflow: hidden;
    position: relative;
}

.report-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.report-content {
    padding: 32px;
}

.report-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 16px;
    line-height: 1.4;
    letter-spacing: -0.3px;
}

.report-title a {
    color: var(--primary-dark);
    text-decoration: none;
    display: block;
    transition: all 0.3s ease;
    position: relative;
}

.report-title a:hover {
    color: var(--primary-blue);
    transform: translateX(4px);
}

.report-title a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-cyan));
    border-radius: 2px;
    transition: width 0.3s ease;
}

.report-title a:hover::after {
    width: 40px;
}

.report-excerpt {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.report-link {
    color: var(--accent-cyan);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.report-link:hover {
    color: var(--primary-blue);
}

.report-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--gray-200);
}

.report-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--accent-cyan);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    padding: 4px 10px;
    border-radius: 6px;
    background: rgba(37, 184, 217, 0.1);
    transition: all 0.3s ease;
}

.report-link:hover {
    background: rgba(33, 100, 212, 0.15);
    color: var(--primary-blue);
}

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

.link-icon,
.report-stats .date-icon {
    font-size: 0.75rem;
}

.report-stats .stat-icon {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: 6px;
    background: rgba(251, 191, 36, 0.1);
}

/* ========================================
   预约索样
   ======================================== */
.sample-request {
    background: var(--gradient-dark);
    color: white;
}

.sample-request .section-title {
    color: white;
}

.sample-form-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 48px;
}

.sample-info h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.sample-info > p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact-details {
    display: flex;
    flex-direction: row;
    gap: 32px;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 1.125rem;
}

.sample-image {
    margin-top: 24px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.sample-image img {
    width: 100%;
    height: auto;
    display: block;
}

.contact-icon {
    font-size: 1.5rem;
}

.sample-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 16px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
    background: rgba(255, 255, 255, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.form-group select {
    cursor: pointer;
}

.form-group select option {
    background: var(--bg-dark);
    color: white;
}

.btn-submit {
    background: var(--gradient-accent);
    color: white;
    font-size: 1.125rem;
    padding: 18px 40px;
    border: none;
    border-radius: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 16px;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(37, 184, 217, 0.4);
}

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.form-result {
    margin-top: 8px;
}

.result-success,
.result-error {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    border-radius: 12px;
    font-size: 0.95rem;
    animation: fadeIn 0.3s ease;
}

.result-success {
    background: rgba(34, 197, 94, 0.15);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #22c55e;
}

.result-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

.result-icon {
    font-size: 1.25rem;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   动画效果
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card,
.solution-item,
.strength-card,
.review-card,
.report-card {
    animation: fadeInUp 0.6s ease-out;
}

.product-card:nth-child(1) { animation-delay: 0.1s; }
.product-card:nth-child(2) { animation-delay: 0.2s; }
.product-card:nth-child(3) { animation-delay: 0.3s; }
.product-card:nth-child(4) { animation-delay: 0.4s; }
.product-card:nth-child(5) { animation-delay: 0.5s; }
.product-card:nth-child(6) { animation-delay: 0.6s; }

/* ========================================
   底部版权区域
   ======================================== */
.site-footer {
    background: var(--bg-dark);
    color: white;
}

.footer-top {
    padding: 60px 0;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.footer-top .footer-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 48px;
}

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-about {
    grid-column: span 1;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo img {
    max-height: 50px;
    width: auto;
}

.footer-company-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
}

.footer-tagline {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-description {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    margin: 0;
}

.footer-section-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

.footer-link-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.footer-link-list li {
    margin: 0;
}

.footer-link-list a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.footer-link-list a:hover {
    color: var(--accent-cyan);
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.contact-list .contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
}

.contact-list .contact-icon {
    font-size: 1.125rem;
}

.footer-bottom {
    background: rgba(0, 0, 0, 0.2);
    padding: 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom .footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-copyright {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.875rem;
}

.legal-link {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color 0.3s ease;
}

.legal-link:hover {
    color: var(--accent-cyan);
}

.footer-legal .divider {
    color: rgba(255, 255, 255, 0.3);
}

/* ========================================
   关于我们页面样式 - 大气版
   ======================================== */

/* Hero区域 */
.about-hero {
    position: relative;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0c1445 0%, #1a237e 50%, #0d47a1 100%);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: 8px;
    text-transform: uppercase;
    margin-bottom: 20px;
    opacity: 0.9;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin: 0 0 32px 0;
    line-height: 1.2;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero-breadcrumb {
    font-size: 1rem;
    opacity: 0.9;
}

.hero-breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.hero-breadcrumb a:hover {
    color: white;
}

.breadcrumb-arrow {
    margin: 0 12px;
    opacity: 0.5;
}

/* 装饰元素 */
.hero-deco {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(33, 150, 243, 0.3) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

.deco-1 {
    width: 400px;
    height: 400px;
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.deco-2 {
    width: 300px;
    height: 300px;
    bottom: -50px;
    left: -50px;
    animation-delay: 2s;
}

.deco-3 {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 10%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) scale(1);
        opacity: 0.6;
    }
    50% {
        transform: translateY(-20px) scale(1.05);
        opacity: 0.8;
    }
}

/* 企业简介 */
.company-intro {
    padding: 80px 0;
    background: white;
}

.intro-content {
    max-width: 1200px;
    margin: 0 auto;
}

.intro-text {
    margin-bottom: 60px;
}

.intro-text .section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 32px 0;
    padding-bottom: 20px;
    border-bottom: 4px solid var(--primary-blue);
    display: inline-block;
}

.intro-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.05) 0%, rgba(0, 188, 212, 0.05) 100%);
    padding: 48px;
    border-radius: 16px;
}

.stat-card {
    text-align: center;
    padding: 24px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(33, 150, 243, 0.15);
}

.stat-value {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin: 0 0 8px 0;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin: 0;
    font-weight: 500;
}

/* 企业优势 */
.company-advantages {
    padding: 100px 0;
    background: linear-gradient(180deg, #f8fafc 0%, white 100%);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 16px 0;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin: 0 0 48px 0;
}

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

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.advantage-card {
    position: relative;
    background: white;
    padding: 40px 32px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.advantage-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(33, 150, 243, 0.15);
}

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

.advantage-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
    display: block;
}

.advantage-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 16px 0;
}

.advantage-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0 0 24px 0;
}

.advantage-highlight {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.1) 0%, rgba(0, 188, 212, 0.1) 100%);
    color: var(--primary-blue);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 20px;
}

/* 发展历程 */
.development-history {
    padding: 100px 0;
    background: white;
}

.timeline-wrapper {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    transform: translateX(-50%);
    border-radius: 2px;
}

.timeline-items {
    position: relative;
    padding: 24px 0;
}

.timeline-block {
    position: relative;
    margin-bottom: 60px;
}

.timeline-block:last-child {
    margin-bottom: 0;
}

.timeline-block:nth-child(odd) .timeline-card {
    margin-right: calc(50% + 40px);
    text-align: right;
}

.timeline-block:nth-child(even) .timeline-card {
    margin-left: calc(50% + 40px);
}

.timeline-dot {
    position: absolute;
    left: 50%;
    top: 0;
    width: 24px;
    height: 24px;
    background: white;
    border: 4px solid var(--primary-blue);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 1;
    transition: all 0.3s ease;
}

.timeline-block:hover .timeline-dot {
    transform: translateX(-50%) scale(1.3);
    box-shadow: 0 0 20px rgba(33, 150, 243, 0.5);
}

.timeline-year {
    position: absolute;
    left: 50%;
    top: -40px;
    transform: translateX(-50%);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    background: white;
    padding: 8px 24px;
    border-radius: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.timeline-card {
    position: relative;
    background: white;
    padding: 32px;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.timeline-block:hover .timeline-card {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(33, 150, 243, 0.12);
}

.timeline-card h4 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 12px 0;
}

.timeline-card p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* 企业荣誉 */
.company-honors {
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.05) 0%, rgba(0, 188, 212, 0.05) 100%);
}

.honors-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.honor-item {
    text-align: center;
    padding: 32px;
    background: white;
    border-radius: 12px;
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
}

.honor-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 24px rgba(33, 150, 243, 0.15);
    color: var(--primary-blue);
}

/* 企业文化 */
.corporate-culture {
    padding: 100px 0;
    background: linear-gradient(135deg, #0c1445 0%, #1a237e 100%);
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.culture-item {
    text-align: center;
    padding: 40px;
    border-radius: 16px;
    transition: transform 0.3s ease;
}

.culture-item:hover {
    transform: translateY(-8px);
}

.culture-item h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin: 0 0 20px 0;
}

.culture-item p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin: 0;
}

.culture-item.mission {
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.2) 0%, rgba(33, 150, 243, 0.1) 100%);
    border: 1px solid rgba(33, 150, 243, 0.3);
}

.culture-item.vision {
    background: linear-gradient(135deg, rgba(0, 188, 212, 0.2) 0%, rgba(0, 188, 212, 0.1) 100%);
    border: 1px solid rgba(0, 188, 212, 0.3);
}

.culture-item.values {
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.2) 0%, rgba(33, 100, 212, 0.1) 100%);
    border: 1px solid rgba(33, 100, 212, 0.3);
}

/* ========== 新版 About 页面样式 ========== */

/* 核心产品 */
.company-products {
    padding: 80px 0;
    background: linear-gradient(180deg, rgba(33, 100, 212, 0.05) 0%, white 100%);
}

.company-products .products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.company-products .product-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.company-products .product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.company-products .product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(33, 100, 212, 0.15);
}

.company-products .product-card:hover::before {
    transform: scaleX(1);
}

.company-products .product-icon {
    font-size: 3.5rem;
    margin-bottom: 16px;
    display: block;
}

.company-products .product-name {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 12px 0;
}

.company-products .product-desc {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0 0 16px 0;
}

.company-products .product-spec {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.1) 0%, rgba(37, 184, 217, 0.1) 100%);
    color: var(--primary-blue);
    font-size: 0.8125rem;
    font-weight: 500;
    border-radius: 20px;
}

/* 企业数据 */
.company-stats {
    padding: 60px 0;
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.08) 0%, rgba(37, 184, 217, 0.08) 100%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.company-stats .stat-item {
    text-align: center;
    padding: 32px 24px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.company-stats .stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.company-stats .stat-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(33, 100, 212, 0.15);
}

.company-stats .stat-item:hover::before {
    transform: scaleX(1);
}

.company-stats .stat-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    display: block;
}

.company-stats .stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin: 0 0 8px 0;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.company-stats .stat-text {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin: 0;
}

/* 企业简介 */
.company-profile {
    padding: 100px 0;
    background: white;
}

.profile-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 64px;
    align-items: center;
}

.section-heading {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 32px 0;
    padding-bottom: 20px;
    border-bottom: 4px solid var(--primary-blue);
    display: inline-block;
}

.section-subheading {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin: 0;
}

.profile-text .article-content {
    font-size: 1.125rem;
    line-height: 1.9;
    color: var(--text-secondary);
}

.profile-text .article-content p {
    margin-bottom: 20px;
    text-indent: 2em;
}

.profile-image {
    position: relative;
}

.image-frame {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.image-placeholder {
    width: 100%;
    padding-top: 75%;
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.1) 0%, rgba(37, 184, 217, 0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.image-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.05) 0%, rgba(37, 184, 217, 0.05) 100%);
}

.placeholder-icon {
    font-size: 6rem;
    position: relative;
    z-index: 1;
}

.frame-decoration {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    border-radius: 50%;
    opacity: 0.8;
}

.frame-decoration::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 2rem;
    font-weight: 700;
}

/* 核心优势 */
.core-advantages {
    padding: 100px 0;
    background: linear-gradient(180deg, #f8fafc 0%, white 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header .section-heading {
    margin-bottom: 16px;
    border-bottom: none;
    padding-bottom: 0;
}

.advantages-wrapper {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.advantage-item {
    background: white;
    padding: 40px 32px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.advantage-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.advantage-item:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(33, 100, 212, 0.15);
}

.advantage-item:hover::before {
    transform: scaleX(1);
}

.advantage-icon-box {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.1) 0%, rgba(37, 184, 217, 0.1) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.advantage-item:hover .advantage-icon-box {
    transform: scale(1.1);
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.2) 0%, rgba(37, 184, 217, 0.2) 100%);
}

.advantage-icon-box .icon {
    font-size: 2.5rem;
}

.advantage-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 16px 0;
}

.advantage-stats {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
    margin-bottom: 16px;
}

.stat-num {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.advantage-text {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* 发展历程 */
.timeline-section {
    padding: 100px 0;
    background: white;
}

.timeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}

.timeline-track {
    position: relative;
    padding-left: 60px;
}

.timeline-track::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    border-radius: 2px;
}

.timeline-node {
    position: relative;
    padding-bottom: 60px;
}

.timeline-node:last-child {
    padding-bottom: 0;
}

.node-dot {
    position: absolute;
    left: -50px;
    top: 8px;
    width: 24px;
    height: 24px;
    background: white;
    border: 4px solid var(--primary-blue);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.timeline-node:hover .node-dot {
    transform: scale(1.3);
    box-shadow: 0 0 20px rgba(33, 100, 212, 0.5);
}

.node-year {
    position: absolute;
    left: -120px;
    top: 0;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    white-space: nowrap;
}

.node-content {
    background: white;
    padding: 32px;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.timeline-node:hover .node-content {
    transform: translateX(12px);
    box-shadow: 0 12px 32px rgba(33, 100, 212, 0.12);
}

.node-content h4 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 12px 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.node-content h4::before {
    content: '';
    width: 4px;
    height: 24px;
    background: linear-gradient(180deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    border-radius: 2px;
}

.node-content p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* 企业荣誉 */
.honors-section {
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.05) 0%, rgba(37, 184, 217, 0.05) 100%);
}

.honors-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.honor-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
}

.honor-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 28px rgba(33, 100, 212, 0.15);
}

.honor-image {
    width: 100%;
    height: 140px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.1) 0%, rgba(37, 184, 217, 0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.honor-info {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.honor-icon {
    font-size: 1.75rem;
    flex-shrink: 0;
}

.honor-text {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.5;
}

/* 企业文化 */
.culture-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

.culture-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.culture-card {
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

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

.culture-card:hover {
    transform: translateY(-12px);
}

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

.culture-card.mission {
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.2) 0%, rgba(33, 100, 212, 0.1) 100%);
    border: 1px solid rgba(33, 100, 212, 0.3);
}

/* ========== About页面新版样式 - 参考ducorobots.cn ========== */

/* Hero区域 */
.about-hero {
    background: linear-gradient(135deg, #1a4a8a 0%, #2164d4 30%, #25b8d9 70%, #2cd6f6 100%);
    color: white;
    padding: 140px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.about-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 20% 30%, rgba(33, 100, 212, 0.3) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 70%, rgba(44, 214, 246, 0.2) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 60%);
}

.about-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.about-hero .hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
    background: linear-gradient(135deg, #ffffff 0%, #a5f3fc 50%, #ffffff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 60px rgba(33, 100, 212, 0.5);
    letter-spacing: 2px;
    text-align: center;
}

.about-hero .hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.95;
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    text-align: center;
}

/* 数据展示 */
.stats-section {
    background: white;
    padding: 60px 0;
    border-bottom: 1px solid var(--gray-200);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

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

.stats-section .stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 8px;
}

.stats-section .stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* 企业简介 */
.intro-section {
    padding: 80px 0px 0px 0px;
    background: white;
}

.intro-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 48px;
    align-items: start;
}

.intro-text h2 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 24px;
}

.intro-text p {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--text-dark);
    margin-bottom: 20px;
    text-indent: 2em;
}

.intro-info {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    border-radius: 16px;
    padding: 32px;
    color: white;
}

.intro-info .info-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.intro-info .info-item:last-child {
    border-bottom: none;
}

.intro-info .info-label {
    font-size: 0.9375rem;
    opacity: 0.8;
}

.intro-info .info-value {
    font-size: 0.9375rem;
    font-weight: 600;
    text-align: right;
    max-width: 260px;
}

@media (max-width: 968px) {
    .intro-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .intro-text h2 {
        text-align: center;
    }
}

/* 核心产品 */
.products-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.section-header p {
    font-size: 1rem;
    color: var(--text-secondary);
}

.products-section .products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.products-section .product-card {
    background: white;
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.3s ease;
}

.products-section .product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--primary-blue);
}

.products-section .product-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.products-section .product-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.products-section .product-desc {
    font-size: 0.875rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* 企业文化 */
.culture-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #1a4a8a 0%, #2164d4 50%, #25b8d9 100%);
    color: white;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

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

.culture-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.culture-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.culture-desc {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

/* 资质荣誉 */
.honors-section {
    padding: 80px 0;
    background: white;
}

.honors-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.honor-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.honor-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--primary-blue);
}

.honor-image {
    height: 160px;
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.1) 0%, rgba(37, 184, 217, 0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

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

.honor-text {
    padding: 20px;
    text-align: center;
    font-size: 0.9375rem;
    color: var(--text-dark);
    font-weight: 500;
}

/* 发展历程 - 高端玻璃拟态风格 */
.timeline-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a4a8a 0%, #25b8d9 50%, #2cd6f6 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.timeline-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(37, 184, 217, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.timeline-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 30%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 184, 217, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.timeline-section .section-header {
    position: relative;
    z-index: 2;
}

.timeline-section .section-header h2 {
    color: white;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.timeline-section .section-header p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.125rem;
}

.timeline-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 2;
}

.timeline-row {
    display: flex;
    align-items: center;
    gap: 0;
}

.timeline-row-top {
    margin-bottom: 30px;
}

.timeline-row-bottom {
    margin-top: 30px;
}

.timeline-item {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 28px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.08);
    flex: 1;
    min-width: 160px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, #2164d4, transparent);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.timeline-item:hover::before {
    transform: scaleX(1);
}

.timeline-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-8px) scale(1.02);
    border-color: rgba(33, 100, 212, 0.4);
    box-shadow: 
        0 20px 40px rgba(33, 100, 212, 0.2),
        0 0 60px rgba(33, 100, 212, 0.1),
        inset 0 0 60px rgba(255, 255, 255, 0.03);
}

.timeline-year-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2164d4 0%, #2164d4 50%, #25b8d9 100%);
    color: white;
    font-size: 1rem;
    font-weight: 700;
    padding: 8px 20px;
    border-radius: 25px;
    margin-bottom: 16px;
    box-shadow: 
        0 4px 15px rgba(33, 100, 212, 0.4),
        inset 0 1px 1px rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.timeline-year-badge::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.timeline-item:hover .timeline-year-badge::after {
    left: 100%;
}

.timeline-item:hover .timeline-year-badge {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(33, 100, 212, 0.6);
}

.timeline-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    position: relative;
}

.timeline-arrow::before {
    content: '';
    position: absolute;
    width: 30px;
    height: 30px;
    border: 2px solid rgba(33, 100, 212, 0.5);
    border-radius: 50%;
    animation: pulseRing 2s ease-out infinite;
}

.timeline-arrow::after {
    content: '→';
    color: #2164d4;
    font-size: 1.75rem;
    font-weight: 300;
    animation: arrowFloat 2s ease-in-out infinite;
    position: relative;
    z-index: 1;
    text-shadow: 0 0 10px rgba(33, 100, 212, 0.8);
}

@keyframes pulseRing {
    0% {
        transform: scale(0.8);
        opacity: 1;
        border-color: rgba(33, 100, 212, 0.8);
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
        border-color: rgba(33, 100, 212, 0);
    }
}

@keyframes arrowFloat {
    0%, 100% {
        opacity: 0.6;
        transform: translateX(0);
    }
    50% {
        opacity: 1;
        transform: translateX(6px);
    }
}

.timeline-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.timeline-icon {
    font-size: 2rem;
    margin-bottom: 8px;
    transition: transform 0.3s ease;
}

.timeline-item:hover .timeline-icon {
    transform: scale(1.1);
}

.timeline-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: white;
    margin: 0;
    position: relative;
}

.timeline-content h4::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, #2164d4, #2cd6f6);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.timeline-item:hover .timeline-content h4::after {
    transform: scaleX(1);
}

.timeline-content p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.6;
    margin: 0;
    transition: color 0.3s ease;
}

.timeline-item:hover .timeline-content p {
    color: rgba(255, 255, 255, 0.85);
}

.timeline-curve {
    height: 100px;
    margin: 0 -24px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.timeline-curve svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 20px rgba(33, 100, 212, 0.5));
}

.timeline-curve::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: radial-gradient(circle, #2164d4 0%, rgba(33, 100, 212, 0.5) 50%, transparent 70%);
    animation: glowPulse 2s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.3);
        opacity: 1;
    }
}

.timeline-future {
    background: linear-gradient(135deg, rgba(37, 184, 217, 0.15) 0%, rgba(33, 100, 212, 0.1) 100%);
    border-color: rgba(44, 214, 246, 0.3);
}

.timeline-future .timeline-year-badge {
    background: linear-gradient(135deg, #2cd6f6 0%, #2164d4 50%, #1a4a8a 100%);
    box-shadow: 0 6px 20px rgba(44, 214, 246, 0.5);
}

.timeline-future:hover {
    box-shadow: 
        0 20px 40px rgba(44, 214, 246, 0.2),
        0 0 60px rgba(44, 214, 246, 0.15),
        inset 0 0 60px rgba(44, 214, 246, 0.05);
}

/* 响应式 */
@media (max-width: 1200px) {
    .timeline-row {
        flex-wrap: wrap;
    }
    .timeline-item {
        flex: 0 0 calc(33.333% - 20px);
        margin: 10px;
    }
    .timeline-arrow {
        display: none;
    }
}

@media (max-width: 968px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .culture-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .honors-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline-item {
        flex: 0 0 calc(50% - 20px);
        margin: 10px;
    }
}

@media (max-width: 640px) {
    .about-hero .hero-title {
        font-size: 2.25rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .honors-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline-item {
        flex: 0 0 100%;
        margin: 10px 0;
    }
}

.culture-card.mission::before {
    background: linear-gradient(90deg, #2164d4 0%, #2cd6f6 100%);
}

.culture-card.vision {
    background: linear-gradient(135deg, rgba(37, 184, 217, 0.2) 0%, rgba(37, 184, 217, 0.1) 100%);
    border: 1px solid rgba(37, 184, 217, 0.3);
}

.culture-card.vision::before {
    background: linear-gradient(90deg, #25b8d9 0%, #2cd6f6 100%);
}

.culture-card.values {
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.2) 0%, rgba(33, 100, 212, 0.1) 100%);
    border: 1px solid rgba(33, 100, 212, 0.3);
}

.culture-card.values::before {
    background: linear-gradient(90deg, #a855f7 0%, #c084fc 100%);
}

.card-icon {
    font-size: 3.5rem;
    margin-bottom: 24px;
    display: block;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin: 0 0 20px 0;
}

.card-text {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin: 0;
}

/* ========================================
   列表页面
   ======================================== */
.list-section {
    padding: 60px 0;
    background: white;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.sidebar {
    position: sticky;
    top: 80px;
    height: fit-content;
}

.sidebar-box {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

.main-content {
    min-height: 500px;
}

.list-container {
    background: white;
    border-radius: 12px;
    padding: 32px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

.list-item {
    padding: 24px 0;
    border-bottom: 1px solid var(--gray-100);
    transition: all 0.3s ease;
}

.list-item:last-child {
    border-bottom: none;
}

.list-item:hover {
    background: rgba(33, 100, 212, 0.03);
    margin-left: 8px;
    padding-left: 16px;
    border-radius: 8px;
}

.list-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0 0 12px 0;
}

.list-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.list-title a:hover {
    color: var(--primary-blue);
}

.list-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 12px;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding: 4px 10px;
    background: rgba(37, 184, 217, 0.08);
    border-radius: 6px;
}

.meta-icon {
    font-size: 0.75rem;
}

.list-excerpt {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 分页 */
.pagination-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-100);
}

.pagination {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border-radius: 8px;
    background: white;
    border: 1px solid var(--gray-200);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: all 0.3s ease;
}

.page-link:hover {
    background: rgba(33, 100, 212, 0.1);
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.pagination .current {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    border-color: var(--primary-blue);
    color: white;
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* 无数据 */
.no-data {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 0;
    text-align: center;
}

.no-data-icon {
    font-size: 4rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.no-data p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ========================================
   新闻列表页面样式
   ======================================== */
.main-content {
    min-height: calc(100vh - 200px);
}

/* 内容包装器 */
.content-wrapper {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 32px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 24px;
}

/* 左侧边栏 */
.left-sidebar {
    position: sticky;
    top: 80px;
    height: fit-content;
}

.sidebar-box {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

/* 主内容区域 */
.main-area {
    min-height: 500px;
}

.content-box {
    background: white;
    border-radius: 12px;
    padding: 32px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

/* 当前位置导航 */
.position-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding-bottom: 20px;
    border-bottom: 1px solid var(--gray-100);
    margin-bottom: 24px;
}

.position-icon {
    width: 16px;
    height: 16px;
}

.position-nav a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

.position-nav a:hover {
    color: var(--accent-cyan);
    text-decoration: underline;
}

/* 新闻列表容器 */
.news-list-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* 新闻卡片 */
.news-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    border: 1px solid var(--gray-100);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(33, 100, 212, 0.12);
    border-color: rgba(33, 100, 212, 0.2);
}

.news-card-inner {
    padding: 24px;
}

.news-header {
    margin-bottom: 16px;
}

.news-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
    line-height: 1.5;
}

.news-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.news-title a:hover {
    color: var(--primary-blue);
}

.news-body {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.news-image {
    flex-shrink: 0;
    width: 180px;
    height: 120px;
    border-radius: 8px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.news-excerpt {
    flex: 1;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--gray-100);
}

.news-meta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding: 4px 12px;
    background: rgba(37, 184, 217, 0.08);
    border-radius: 20px;
}

.meta-icon {
    font-size: 0.75rem;
}

.news-readmore {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--accent-cyan);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    padding: 6px 14px;
    border-radius: 20px;
    background: rgba(37, 184, 217, 0.1);
    transition: all 0.3s ease;
}

.news-readmore:hover {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    color: white;
    transform: translateX(4px);
}

/* 分页 */
.pagination-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-100);
}

.pagination {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.page-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 14px;
    border-radius: 8px;
    background: white;
    border: 1px solid var(--gray-200);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: all 0.3s ease;
}

.page-item:hover {
    background: rgba(33, 100, 212, 0.1);
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.pagination .current {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    border-color: var(--primary-blue);
    color: white;
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* 无数据 */
.no-data {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 0;
    text-align: center;
}

.no-data-icon {
    font-size: 4rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.no-data p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 0;
}

/* 响应式 */
@media (max-width: 968px) {
    .content-wrapper {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 24px 16px;
    }
    
    .left-sidebar {
        position: static;
    }
    
    .content-box {
        padding: 20px;
    }
    
    .news-body {
        flex-direction: column;
    }
    
    .news-image {
        width: 100%;
        height: 180px;
    }
    
    .news-card-inner {
        padding: 16px;
    }
    
    .news-footer {
        flex-wrap: wrap;
        gap: 12px;
    }
}

/* ========================================
   示范列表页面专属样式 (shifanlist.html)
   使用独特前缀 shifan- 避免样式冲突
   ======================================== */

/* 左侧边栏样式 */
.shifan-sidebar {
    position: static;
    height: fit-content;
}

.shifan-sidebar-container {
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 20px;
    padding: 24px;
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.06),
        0 1px 3px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(33, 100, 212, 0.08);
    position: relative;
    overflow: hidden;
}

.shifan-sidebar-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 2px solid linear-gradient(90deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    border-image: linear-gradient(90deg, var(--primary-blue) 0%, var(--accent-cyan) 100%) 1;
}

.shifan-sidebar-header::after {
    content: '';
    position: absolute;
    left: 24px;
    right: 24px;
    top: 72px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    border-radius: 1px;
}

.shifan-sidebar-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.1) 0%, rgba(44, 214, 246, 0.1) 100%);
    border-radius: 12px;
    font-size: 1.25rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.shifan-sidebar-container:hover .shifan-sidebar-icon {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(33, 100, 212, 0.2);
}

.shifan-sidebar-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin: 0;
    letter-spacing: -0.3px;
}

.shifan-sidebar-content {
    position: relative;
    z-index: 1;
}

.shifan-sidebar-decoration {
    position: absolute;
    top: -30px;
    right: -30px;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(33, 100, 212, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

/* 当前位置导航（面包屑）样式 */
.shifan-breadcrumb {
    margin-bottom: 28px;
}

.shifan-breadcrumb-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px 16px;
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.05) 0%, rgba(44, 214, 246, 0.05) 100%);
    border-radius: 12px;
    border: 1px solid rgba(33, 100, 212, 0.1);
}

.shifan-breadcrumb-list a {
    color: var(--primary-blue);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.shifan-breadcrumb-list a:hover {
    color: var(--accent-cyan);
    transform: translateX(2px);
}

.shifan-breadcrumb-list a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-cyan));
    border-radius: 1px;
    transition: width 0.3s ease;
}

.shifan-breadcrumb-list a:hover::after {
    width: 100%;
}

.shifan-breadcrumb-list span:not(.shifan-breadcrumb-separator) {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.shifan-breadcrumb-separator {
    color: var(--accent-cyan);
    font-size: 0.875rem;
    font-weight: 600;
    margin: 0 4px;
}

/* 响应式适配 */
@media (max-width: 968px) {
    .shifan-sidebar {
        position: static;
    }
    
    .shifan-sidebar-container {
        padding: 20px;
    }
    
    .shifan-sidebar-header {
        padding-bottom: 16px;
        margin-bottom: 16px;
    }
    
    .shifan-sidebar-header::after {
        top: 68px;
    }
    
    .shifan-breadcrumb-list {
        padding: 10px 14px;
        gap: 6px;
    }
}

/* ========================================
   示范列表页面3列网格布局样式
   使用 shifan-card- 前缀避免样式冲突
   ======================================== */

/* 网格容器 */
.shifan-grid-container {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    margin-top: 20px;
}

/* 卡片样式 */
.shifan-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--gray-100);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.shifan-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(33, 100, 212, 0.15);
    border-color: rgba(33, 100, 212, 0.25);
}

/* 卡片图片区域 */
.shifan-card-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.shifan-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.shifan-card:hover .shifan-card-img {
    transform: scale(1.1);
}

.shifan-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 40%, rgba(0, 0, 0, 0.6) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.shifan-card:hover .shifan-card-overlay {
    opacity: 1;
}

/* 卡片内容区域 */
.shifan-card-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 140px;
}

.shifan-card-title {
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 12px;
    line-height: 1.5;
}

.shifan-card-title a {
    color: var(--primary-dark);
    text-decoration: none;
    transition: color 0.3s ease;
}

.shifan-card-title a:hover {
    color: var(--primary-blue);
}

.shifan-card-excerpt {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0 0 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 卡片底部 */
.shifan-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 23px 0px 8px 0px;
    border-top: 1px solid var(--gray-100);
    margin: 0;
}

.shifan-card-date {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.shifan-card-link {
    font-size: 0.8125rem;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.3s ease;
}

.shifan-card-link:hover {
    gap: 8px;
    color: var(--accent-cyan);
}

/* 响应式布局 */
@media (max-width: 1024px) {
    .shifan-grid-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 640px) {
    .shifan-grid-container {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .shifan-card-image {
        height: 160px;
    }
}

/* ========================================
   侧边栏导航菜单样式 (left.html)
   使用 shifan-nav- 前缀避免样式冲突
   ======================================== */

/* 导航菜单容器 */
.shifan-nav-menu {
    width: 100%;
}

.shifan-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* 导航项 */
.shifan-nav-item {
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.shifan-nav-item:hover {
    background: rgba(33, 100, 212, 0.05);
}

/* 导航切换按钮 */
.shifan-nav-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    padding: 14px 16px;
    background: transparent;
    border: none;
    text-align: left;
    text-decoration: none;
    color: inherit;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border-radius: 8px;
}

.shifan-nav-toggle::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    transform: scaleY(0);
    opacity: 0;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 0 3px 3px 0;
}

.shifan-nav-toggle:hover {
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.08) 0%, rgba(44, 214, 246, 0.08) 100%);
    transform: translateX(4px);
}

.shifan-nav-toggle:hover::before {
    transform: scaleY(1);
    opacity: 1;
}

.shifan-nav-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(33, 100, 212, 0.2);
}

.shifan-nav-toggle:active {
    transform: translateX(4px) scale(0.99);
}

/* 导航图标 */
.shifan-nav-icon {
    font-size: 0.75rem;
    color: var(--accent-cyan);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    width: 16px;
    text-align: center;
}

.shifan-nav-item.active > .shifan-nav-toggle .shifan-nav-icon,
.shifan-nav-toggle:hover .shifan-nav-icon {
    color: var(--primary-blue);
    transform: rotate(90deg);
}

/* 导航标题 */
.shifan-nav-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary-dark);
    transition: color 0.3s ease;
}

.shifan-nav-toggle:hover .shifan-nav-title {
    color: var(--primary-blue);
}

/* 子导航列表 */
.shifan-subnav {
    list-style: none;
    padding: 0;
    margin: 0;
    background: rgba(33, 100, 212, 0.03);
    border-left: 3px solid transparent;
    transition: all 0.3s ease;
}

.shifan-nav-item.active > .shifan-subnav,
.shifan-nav-item:hover > .shifan-subnav {
    border-left-color: var(--accent-cyan);
    background: rgba(33, 100, 212, 0.05);
}

/* 子导航项 */
.shifan-subnav-item {
    margin: 2px 0;
    transition: all 0.3s ease;
}

/* 子导航链接 */
.shifan-subnav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px 10px 36px;
    text-decoration: none;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    border-radius: 0 8px 8px 0;
}

.shifan-subnav-link:hover {
    background: rgba(33, 100, 212, 0.1);
    color: var(--primary-blue);
    padding-left: 40px;
}

/* 子导航圆点 */
.shifan-subnav-dot {
    width: 6px;
    height: 6px;
    background: var(--gray-300);
    border-radius: 50%;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.shifan-subnav-link:hover .shifan-subnav-dot {
    background: var(--accent-cyan);
    transform: scale(1.3);
}

/* 子导航文本 */
.shifan-subnav-text {
    font-size: 0.9rem;
}

/* 激活状态 */
.shifan-subnav-link.active {
    background: rgba(33, 100, 212, 0.1);
    color: var(--primary-blue);
}

.shifan-subnav-link.active .shifan-subnav-dot {
    background: var(--primary-blue);
}

/* 响应式适配 */
@media (max-width: 968px) {
    .shifan-nav-toggle {
        padding: 12px 14px;
    }
    
    .shifan-subnav-link {
        padding: 8px 14px 8px 32px;
    }
    
    .shifan-subnav-link:hover {
        padding-left: 36px;
    }
}

/* ========================================
   示范列表页面分页样式
   使用 shifan-pagination- 前缀避免样式冲突
   ======================================== */

/* 分页容器 - 居中显示 */
.shifan-pagination-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 50px 0;
}

/* 分页导航 */
.shifan-pagination {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    background: white;
    padding: 12px 20px;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(33, 100, 212, 0.08);
    border: 1px solid rgba(33, 100, 212, 0.1);
}

/* 分页项 - 支持手动添加的项 */
.shifan-page-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 16px;
    border-radius: 22px;
    background: transparent;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

/* 分页容器下的所有 a 标签 - 支持 {page:numbar} 动态生成的页码 */
.shifan-pagination a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 16px;
    border-radius: 22px;
    background: transparent;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

/* 分页项悬停效果 */
.shifan-page-item:hover,
.shifan-pagination a:hover {
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.1) 0%, rgba(44, 214, 246, 0.1) 100%);
    color: var(--primary-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(33, 100, 212, 0.15);
}

/* 当前页码样式 */
.shifan-pagination .current {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 16px;
    border-radius: 22px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    color: white;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(33, 100, 212, 0.35);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 当前页码悬停效果 */
.shifan-pagination .current:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 6px 20px rgba(33, 100, 212, 0.45);
}

/* 首页/尾页特殊样式 */
.shifan-page-item:first-child,
.shifan-page-item:last-child,
.shifan-pagination a:first-child,
.shifan-pagination a:last-child {
    min-width: 60px;
}

/* 禁用状态 */
.shifan-page-item.disabled,
.shifan-page-item.disabled:hover,
.shifan-pagination a.disabled,
.shifan-pagination a.disabled:hover {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    background: transparent;
    color: var(--text-tertiary);
}

/* 响应式适配 */
@media (max-width: 1024px) {
    .shifan-page-item,
    .shifan-pagination a {
        min-width: 40px;
        height: 40px;
        padding: 0 12px;
        font-size: 0.875rem;
    }
    
    .shifan-page-item:first-child,
    .shifan-page-item:last-child,
    .shifan-pagination a:first-child,
    .shifan-pagination a:last-child {
        min-width: 50px;
    }
}

@media (max-width: 640px) {
    .shifan-pagination {
        padding: 8px 12px;
        gap: 6px;
    }
    
    .shifan-page-item,
    .shifan-pagination a {
        min-width: 36px;
        height: 36px;
        padding: 0 8px;
        font-size: 0.8125rem;
    }
    
    .shifan-page-item:first-child,
    .shifan-page-item:last-child,
    .shifan-pagination a:first-child,
    .shifan-pagination a:last-child {
        min-width: 40px;
    }
}

/* ========================================
   示范详情页面样式
   使用 shifan-detail- 前缀避免样式冲突
   ======================================== */

/* 文章详情容器 */
.shifan-detail {
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(33, 100, 212, 0.08);
    border: 1px solid var(--gray-100);
    overflow: hidden;
    margin-top: 20px;
}

/* 文章元信息（在Hero区域显示） */
.shifan-detail-meta {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    margin-top: 16px;
}

.shifan-detail-date,
.shifan-detail-view {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.85);
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

/* 文章内容 */
.shifan-detail-content {
    padding: 32px 36px;
    line-height: 1.9;
    font-size: 1rem;
    color: var(--text-primary);
}

.shifan-detail-content p {
    margin: 0 0 16px;
    text-align: justify;
}

.shifan-detail-content h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin: 24px 0 16px;
    padding-left: 12px;
    border-left: 4px solid var(--primary-blue);
}

.shifan-detail-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin: 20px 0 12px;
}

.shifan-detail-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 16px 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.shifan-detail-content a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

.shifan-detail-content a:hover {
    color: var(--accent-cyan);
    text-decoration: underline;
}

.shifan-detail-content ul,
.shifan-detail-content ol {
    margin: 12px 0;
    padding-left: 24px;
}

.shifan-detail-content li {
    margin-bottom: 8px;
}

.shifan-detail-content blockquote {
    margin: 16px 0;
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.08) 0%, rgba(44, 214, 246, 0.08) 100%);
    border-left: 4px solid var(--primary-blue);
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: var(--text-secondary);
}

/* 文章底部 */
.shifan-detail-footer {
    padding: 24px 36px;
    border-top: 1px solid var(--gray-100);
    background: var(--gray-50);
}

/* 产品列表样式 */
.product-grid-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding: 24px 0;
    align-items: stretch;
}

.product-card {
    background: white;
    border-radius: 12px;
    border: 1px solid var(--gray-100);
    overflow: hidden;
    transition: all 0.35s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.35s ease;
    z-index: 1;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(33, 100, 212, 0.12);
    border-color: rgba(33, 100, 212, 0.2);
}

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

.product-card-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 14px;
    line-height: 1.4;
    flex-shrink: 0;
}

.product-card-title a {
    color: inherit;
    text-decoration: none;
}

.product-card-title a:hover {
    color: var(--primary-blue);
}

.product-card-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.product-card-feature,
.product-card-application {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.6;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.feature-label,
.application-label {
    color: var(--text-light);
    font-weight: 500;
    flex-shrink: 0;
}

.feature-value,
.application-value {
    color: var(--text-primary);
    flex: 1;
}

.product-card-link-wrap {
    margin-top: 16px;
    flex-shrink: 0;
}

.product-card-link-wrap .product-card-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.product-card-link-wrap .product-card-link:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(33, 100, 212, 0.3);
}

/* ========================================
   产品详情页面样式
   使用 product- 前缀避免样式冲突
   ======================================== */

/* Hero区域 */
.product-hero {
    position: relative;
    padding: 60px 40px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    overflow: hidden;
    margin-bottom: 32px;
}

.product-hero-content {
    position: relative;
    z-index: 1;
}

.product-hero-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 12px;
    line-height: 1.3;
}

.product-hero-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
}

.product-hero-decoration {
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

/* 面包屑导航 */
.product-breadcrumb {
    padding: 16px 20px;
    margin-bottom: 24px;
    background: var(--gray-50);
    border-radius: 12px;
}

.product-breadcrumb-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.product-breadcrumb-list a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.product-breadcrumb-list a:hover {
    color: var(--primary-blue);
}

.product-breadcrumb-separator {
    color: var(--gray-300);
    margin: 0 4px;
}

/* 产品详情主体 */
.product-detail {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* 信息网格 */
.product-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

/* 卡片基础样式 */
.product-contact-card,
.product-sample-card {
    background: white;
    border-radius: 16px;
    padding: 24px;
    border: 1px solid var(--gray-100);
    box-shadow: 0 4px 15px rgba(33, 100, 212, 0.06);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--gray-100);
}

.card-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.1) 0%, rgba(44, 214, 246, 0.1) 100%);
    border-radius: 12px;
    font-size: 1.25rem;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* 联系信息网格 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px;
    background: var(--gray-50);
    border-radius: 10px;
}

.contact-item.full-width {
    grid-column: 1 / -1;
}

.contact-icon {
    font-size: 1rem;
}

.contact-label {
    font-size: 0.75rem;
    color: var(--text-light);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-value {
    font-size: 0.9375rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* 产品页面样品索取表单 */
.product-sample-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.product-form-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.product-form-row label {
    flex-shrink: 0;
    font-weight: 500;
    color: #333;
}

.product-form-row .product-form-input {
    flex: 1;
    min-width: 0;
}

.product-form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.product-form-input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    font-size: 0.9375rem;
    color: var(--text-primary);
    background: white;
    transition: all 0.3s ease;
    outline: none;
}

.product-form-input:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(33, 100, 212, 0.1);
}

.product-form-input::placeholder {
    color: var(--text-light);
}

.product-form-result {
    min-height: 24px;
    font-size: 0.875rem;
    text-align: center;
}

.product-form-result.success {
    color: var(--success-emerald);
}

.product-form-result.error {
    color: #ef4444;
}

.product-submit-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.product-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(33, 100, 212, 0.35);
}

.product-submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

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

/* 产品特性网格 */
.product-features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.feature-card {
    background: white;
    border-radius: 16px;
    padding: 28px;
    border: 1px solid var(--gray-100);
    box-shadow: 0 4px 15px rgba(33, 100, 212, 0.06);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--accent-cyan) 100%);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.feature-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.feature-content {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 产品详情内容 */
.product-content-section {
    background: white;
    border-radius: 16px;
    padding: 32px;
    border: 1px solid var(--gray-100);
    box-shadow: 0 4px 15px rgba(33, 100, 212, 0.06);
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--gray-100);
}

.product-content {
    font-size: 0.9375rem;
    font-weight: 400;
    color: var(--text-secondary);
    line-height: 1.8;
}

.product-content * {
    font-weight: 400 !important;
}

.product-content h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 24px 0 12px;
}

.product-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 20px 0 10px;
}

.product-content p {
    margin-bottom: 16px;
}

.product-content ul,
.product-content ol {
    margin: 16px 0;
    padding-left: 24px;
}

.product-content li {
    margin-bottom: 8px;
}

/* PDF下载区域 */
.product-download-section {
    display: flex;
    justify-content: center;
    padding: 24px;
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.08) 0%, rgba(44, 214, 246, 0.08) 100%);
    border-radius: 16px;
    border: 1px dashed rgba(33, 100, 212, 0.2);
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: white;
    border: 2px solid var(--primary-blue);
    border-radius: 12px;
    color: var(--primary-blue);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.download-btn:hover {
    background: var(--primary-blue);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(33, 100, 212, 0.3);
}

.download-icon {
    font-size: 1.25rem;
}

/* 上下篇导航 */
.product-nav-section {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    gap: 20px;
    padding: 24px;
    background: white;
    border-radius: 16px;
    border: 1px solid var(--gray-100);
    box-shadow: 0 4px 15px rgba(33, 100, 212, 0.06);
}

.nav-prev,
.nav-next {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-prev {
    align-items: flex-start;
}

.nav-next {
    align-items: flex-end;
}

.nav-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-link {
    font-size: 0.9375rem;
    color: var(--text-primary);
    font-weight: 500;
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-blue);
}

.nav-divider {
    width: 1px;
    background: linear-gradient(180deg, transparent 0%, var(--gray-200) 50%, transparent 100%);
}

/* 响应式适配 */
@media (max-width: 1024px) {
    .shifan-detail-content {
        padding: 24px 20px;
    }

    .shifan-detail-footer {
        padding: 20px;
    }

    .product-grid-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    /* 产品详情响应式 */
    .product-hero {
        padding: 40px 24px;
    }

    .product-hero-title {
        font-size: 1.75rem;
    }

    .product-info-grid {
        grid-template-columns: 1fr;
    }

    .product-features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .shifan-detail {
        margin-top: 16px;
        border-radius: 12px;
    }

    .shifan-detail-meta {
        gap: 12px;
    }

    .shifan-detail-date,
    .shifan-detail-view {
        font-size: 0.8125rem;
        padding: 6px 12px;
    }

    .shifan-detail-content {
        padding: 20px 16px;
        font-size: 0.9375rem;
    }

    .shifan-detail-content h2 {
        font-size: 1.125rem;
        margin: 20px 0 12px;
    }

    .shifan-detail-footer {
        padding: 16px;
    }

    .product-grid-container {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .product-card-content {
        padding: 16px;
    }

    /* 产品详情响应式 */
    .product-hero {
        padding: 32px 16px;
    }

    .product-hero-title {
        font-size: 1.5rem;
    }

    .product-hero-subtitle {
        font-size: 1rem;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-item.full-width {
        grid-column: 1;
    }

    .product-contact-card,
    .product-sample-card {
        padding: 20px;
    }

    .product-content-section {
        padding: 20px;
    }

    .section-title {
        font-size: 1.125rem;
    }

    .product-nav-section {
        flex-direction: column;
        gap: 16px;
    }

    .nav-prev,
    .nav-next {
        align-items: flex-start;
        padding-bottom: 16px;
        border-bottom: 1px solid var(--gray-100);
    }

    .nav-next {
        padding-bottom: 0;
        border-bottom: none;
    }

    .nav-divider {
        display: none;
    }
}

    .shifan-detail-prev,
    .shifan-detail-next {
        padding: 10px 16px;
        max-width: 100%;
        justify-content: flex-start;
    }

    .shifan-detail-nav-label {
        font-size: 0.8125rem;
        flex-shrink: 0;
    }

    .shifan-detail-nav-link {
        font-size: 0.875rem;

    }

/* ========================================
   首页专属样式 (index_ 前缀)
   ======================================== */

/* Hero Banner */
.index_hero-banner {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-dark);
    overflow: hidden;
    margin-top: 80px;
}

.index_banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(37, 184, 217, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(44, 214, 246, 0.2) 0%, transparent 50%),
        linear-gradient(135deg, #1a4a8a 0%, #2164d4 100%);
}

.index_banner-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="15" fill="rgba(255,255,255,0.03)"/><circle cx="80" cy="80" r="20" fill="rgba(255,255,255,0.03)"/><circle cx="50" cy="50" r="10" fill="rgba(255,255,255,0.03)"/></svg>');
    background-size: 300px 300px;
    animation: float 20s ease-in-out infinite;
}

.index_banner-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 0;
}

.index_deco-element {
    position: absolute;
    opacity: 0.4;
    filter: drop-shadow(0 0 20px currentColor);
}

.index_deco-molecule {
    top: 15%;
    right: 8%;
    width: 160px;
    height: 160px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="10" fill="%2306b6d4"/><circle cx="20" cy="30" r="8" fill="%2322d3ee"/><circle cx="80" cy="30" r="8" fill="%2322d3ee"/><circle cx="25" cy="70" r="8" fill="%2322d3ee"/><circle cx="75" cy="70" r="8" fill="%2322d3ee"/><line x1="50" y1="50" x2="20" y2="30" stroke="%2367e8f9" stroke-width="3"/><line x1="50" y1="50" x2="80" y2="30" stroke="%2367e8f9" stroke-width="3"/><line x1="50" y1="50" x2="25" y2="70" stroke="%2367e8f9" stroke-width="3"/><line x1="50" y1="50" x2="75" y2="70" stroke="%2367e8f9" stroke-width="3"/></svg>') no-repeat center/contain;
    animation: rotate 15s linear infinite;
    color: #06b6d4;
}

.index_deco-atom {
    top: 55%;
    left: 3%;
    width: 120px;
    height: 120px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="15" fill="%2334d399"/><circle cx="50" cy="50" r="15" fill="url(%23atomGradient)"/><ellipse cx="50" cy="50" rx="40" ry="40" fill="none" stroke="%236ee7b7" stroke-width="2" stroke-dasharray="6 4"/><ellipse cx="50" cy="50" rx="40" ry="40" fill="none" stroke="%236ee7b7" stroke-width="2" transform="rotate(60 50 50)" stroke-dasharray="6 4"/><ellipse cx="50" cy="50" rx="40" ry="40" fill="none" stroke="%236ee7b7" stroke-width="2" transform="rotate(120 50 50)" stroke-dasharray="6 4"/><circle cx="25" cy="30" r="4" fill="%23fbbf24"/><circle cx="75" cy="30" r="4" fill="%23fbbf24"/><circle cx="35" cy="75" r="4" fill="%23fbbf24"/><circle cx="65" cy="75" r="4" fill="%23fbbf24"/><defs><radialGradient id="atomGradient"><stop offset="0%" stop-color="%2334d399"/><stop offset="100%" stop-color="%2310b981"/></radialGradient></defs></svg>') no-repeat center/contain;
    animation: float-atom 12s ease-in-out infinite;
    color: #34d399;
}

.index_deco-circle {
    top: 25%;
    left: 15%;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 3px solid rgba(33, 100, 212, 0.6);
    background: radial-gradient(circle, rgba(33, 100, 212, 0.2) 0%, transparent 70%);
    animation: pulse 2s ease-in-out infinite;
    color: #2164d4;
}

.index_deco-circle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #60a5fa;
    animation: pulse-dot 2s ease-in-out infinite;
}

.index_deco-wave {
    bottom: 15%;
    right: 15%;
    width: 200px;
    height: 100px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 80"><path d="M0,40 Q50,10 100,40 T200,40" fill="none" stroke="%23c084fc" stroke-width="3" opacity="0.8"/><path d="M0,55 Q50,25 100,55 T200,55" fill="none" stroke="%23d8b4fe" stroke-width="2" opacity="0.6"/><path d="M0,70 Q50,40 100,70 T200,70" fill="none" stroke="%23e9d5ff" stroke-width="2" opacity="0.4"/></svg>') no-repeat center/contain;
    animation: wave 6s ease-in-out infinite;
    color: #a855f7;
}

.index_deco-chem {
    top: 40%;
    right: 30%;
    width: 80px;
    height: 80px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect x="30" y="20" width="40" height="60" rx="5" fill="%23f87171" opacity="0.8"/><polygon points="50,5 35,20 65,20" fill="%23ef4444" opacity="0.9"/><line x1="50" y1="80" x2="50" y2="95" stroke="%239ca3af" stroke-width="3"/><line x1="35" y1="45" x2="15" y2="40" stroke="%2360a5fa" stroke-width="2"/><line x1="35" y1="55" x2="10" y2="60" stroke="%2360a5fa" stroke-width="2"/></svg>') no-repeat center/contain;
    animation: float-flask 10s ease-in-out infinite;
    color: #f87171;
}

.index_hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(37, 184, 217, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(37, 184, 217, 0.3);
    border-radius: 20px;
    padding: 8px 16px;
    margin-bottom: 20px;
}

.index_badge-icon {
    font-size: 1.2rem;
}

.index_badge-text {
    font-size: 0.875rem;
    color: var(--cyan-400);
    font-weight: 500;
}

.index_hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 20px 0;
}

.index_hero-tags .index_tag {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    padding: 6px 14px;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
}

.index_hero-tags .index_tag:hover {
    background: rgba(37, 184, 217, 0.3);
    color: var(--cyan-400);
}

.index_banner-content {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    width: 100%;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.index_hero-text {
    color: white;
}

.index_hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #ffffff 0%, #e0f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.index_hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    font-weight: 400;
    line-height: 1.8;
}

.index_hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.index_btn {
    padding: 16px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    letter-spacing: 0.5px;
}

.index_btn-primary {
    background: var(--gradient-accent);
    color: white;
    box-shadow: 0 4px 15px rgba(37, 184, 217, 0.4);
}

.index_btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 184, 217, 0.5);
}

.index_btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.index_btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.index_hero-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.index_feature-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.index_feature-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.index_feature-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.index_feature-title {
    font-size: 18px;
    font-weight: 700;
    color: white;
    margin-bottom: 4px;
}

.index_feature-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

/* 通用区域样式 */
.index_section-header {
    text-align: center;
    margin-bottom: 60px;
}

.index_section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.index_section-subtitle {
    font-size: 1rem;
    color: var(--accent-cyan);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.index_container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 我们是谁 */
.index_who-we-are {
    background: var(--bg-primary);
    padding: 100px 0;
}

.index_who-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.index_who-description p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 24px;
    text-indent: 2em;
}

.index_who-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.index_stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.index_stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    line-height: 1;
    margin-bottom: 8px;
}

.index_stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.index_who-image {
    position: relative;
}

.index_who-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-2xl);
}

.index_who-image::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    background: var(--gradient-accent);
    border-radius: 20px;
    z-index: -1;
    opacity: 0.1;
}

/* 我们提供什么 */
.index_what-we-provide {
    background: var(--bg-secondary);
    padding: 100px 0;
}

.index_products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(600px, 1fr));
    gap: 32px;
}

.index_product-card {
    background: white;
    border-radius: 20px;
    padding: 0;
    box-shadow: var(--shadow-md);
    transition: all 0.4s ease;
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
    display: flex;
    height: 460px;
}

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

.index_product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
}

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

.index_product-left {
    flex: 1;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    text-align: center;
}

.index_product-right {
    flex: 1;
    border-left: 1px solid var(--gray-200);
    background: var(--bg-secondary);
    padding: 40px;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
}

.index_product-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.index_product-icon img {
    width: 140px;
    height: 70px;
    object-fit: contain;
}

.index_product-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.index_product-title a {
    color: var(--primary-dark);
    text-decoration: none;
    transition: color 0.3s ease;
}

.index_product-title a:hover {
    color: var(--primary-blue);
}

.index_product-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    flex: 1;
}

.index_product-features {
    list-style: none;
    padding: 0;
}

.index_product-features li {
    padding: 6px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
}

.index_product-features li::before {
    content: '✓';
    color: var(--success-emerald);
    font-weight: bold;
    margin-right: 10px;
    font-size: 1rem;
}

.index_product-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    counter-reset: product-item;
}

.index_product-item {
    font-size: 0.95rem;
    color: var(--text-secondary);
    padding: 8px 12px;
    border-radius: 6px;
    transition: background 0.3s ease;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
}

.index_product-item::before {
    counter-increment: product-item;
    content: counter(product-item);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-cyan);
    background: rgba(37, 184, 217, 0.1);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.index_product-item:hover {
    background: rgba(33, 100, 212, 0.1);
    color: var(--primary-blue);
}

.index_product-item a {
    color: inherit;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
}

/* 为行业解决什么问题 */
.index_industry-solutions {
    background: var(--bg-primary);
    padding: 100px 0;
}

.index_solutions-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.index_solution-item {
    display: flex;
    gap: 24px;
    padding: 32px;
    background: var(--bg-secondary);
    border-radius: 16px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.index_solution-item:hover {
    background: white;
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-xl);
    transform: translateX(10px);
}

.index_solution-icon {
    font-size: 48px;
    flex-shrink: 0;
}

.index_solution-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.index_solution-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.index_solution-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.index_tag {
    padding: 6px 12px;
    background: rgba(33, 100, 212, 0.1);
    color: var(--primary-blue);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* 公司实力 */
.index_company-strength {
    background: var(--bg-dark);
    color: white;
    padding: 100px 0;
}

.index_company-strength .index_section-title {
    color: white;
}

.index_strength-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.index_strength-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

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

.index_strength-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.index_strength-card:hover::before {
    opacity: 0.1;
}

.index_strength-number {
    font-size: 4rem;
    font-weight: 900;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.index_strength-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.index_strength-desc {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* 客户评价 */
.index_customer-reviews {
    background: var(--bg-secondary);
    padding: 100px 0;
}

.index_reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.index_review-card {
    background: white;
    border-radius: 20px;
    padding: 32px;
    box-shadow: var(--shadow-md);
    transition: all 0.4s ease;
    border: 1px solid var(--gray-100);
}

.index_review-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.index_review-stars {
    font-size: 1.25rem;
    margin-bottom: 20px;
}

.index_review-text {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
    font-style: italic;
}

.index_review-author {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.index_author-name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.index_author-company {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* 行业报告 */
.index_industry-reports {
    background: var(--bg-primary);
    padding: 100px 0;
}

.index_reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 32px;
}

.index_report-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.4s ease;
    border: 1px solid var(--gray-100);
}

.index_report-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

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

.index_report-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.index_report-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    padding: 8px 14px;
    border-radius: 20px;
}

.index_badge-icon {
    font-size: 0.875rem;
}

.index_badge-text {
    font-size: 0.8rem;
    color: white;
    font-weight: 500;
}

.index_report-content {
    padding: 24px;
}

.index_report-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 16px;
    line-height: 1.4;
    letter-spacing: -0.3px;
}

.index_report-title a {
    color: var(--primary-dark);
    text-decoration: none;
    display: block;
    transition: all 0.3s ease;
    position: relative;
}

.index_report-title a:hover {
    color: var(--primary-blue);
    transform: translateX(4px);
}

.index_report-title a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-cyan));
    border-radius: 2px;
    transition: width 0.3s ease;
}

.index_report-title a:hover::after {
    width: 40px;
}

.index_report-excerpt {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.index_report-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--gray-200);
}

.index_report-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--accent-cyan);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    padding: 4px 10px;
    border-radius: 6px;
    background: rgba(37, 184, 217, 0.1);
    transition: all 0.3s ease;
}

.index_report-link:hover {
    background: rgba(33, 100, 212, 0.15);
    color: var(--primary-blue);
}

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

.index_link-icon,
.index_report-stats .index_date-icon {
    font-size: 0.75rem;
}

.index_report-stats .index_stat-icon {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: 6px;
    background: rgba(251, 191, 36, 0.1);
}

/* 预约索样 */
.index_sample-request {
    background: var(--gradient-dark);
    color: white;
    padding: 100px 0;
}

.index_sample-request .index_section-title {
    color: white;
}

.index_sample-form-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 48px;
}

.index_sample-info h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.index_sample-info > p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: 32px;
}

.index_contact-details {
    display: flex;
    flex-direction: row;
    gap: 32px;
    flex-wrap: wrap;
}

.index_contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 1.125rem;
}

.index_sample-image {
    margin-top: 24px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.index_sample-image img {
    width: 100%;
    height: auto;
    display: block;
}

.index_contact-icon {
    font-size: 1.5rem;
}

.index_sample-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.index_form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.index_form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.index_form-group label {
    font-weight: 600;
    font-size: 0.95rem;
}

.index_form-group input,
.index_form-group select,
.index_form-group textarea {
    padding: 14px 16px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.index_form-group input:focus,
.index_form-group select:focus,
.index_form-group textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
    background: rgba(255, 255, 255, 0.15);
}

.index_form-group input::placeholder,
.index_form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.index_form-group select {
    cursor: pointer;
}

.index_form-group select option {
    background: #1e3a5f;
    color: rgba(255, 255, 255, 0.9);
}

.index_form-group select option:hover,
.index_form-group select option:focus {
    background: #24aad8;
    color: white;
}

.index_btn-submit {
    background: var(--gradient-accent);
    color: white;
    font-size: 1.125rem;
    padding: 18px 40px;
    border: none;
    border-radius: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 16px;
}

.index_btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(37, 184, 217, 0.4);
}

.index_btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.index_form-result {
    margin-top: 8px;
}

.index_result-success,
.index_result-error {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    border-radius: 12px;
    font-size: 0.95rem;
    animation: fadeIn 0.3s ease;
}

.index_result-success {
    background: rgba(34, 197, 94, 0.15);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #22c55e;
}

.index_result-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

/* 动画效果 */
.index_product-card,
.index_solution-item,
.index_strength-card,
.index_review-card,
.index_report-card {
    animation: fadeInUp 0.6s ease-out;
}

.index_product-card:nth-child(1) { animation-delay: 0.1s; }
.index_product-card:nth-child(2) { animation-delay: 0.2s; }
.index_product-card:nth-child(3) { animation-delay: 0.3s; }
.index_product-card:nth-child(4) { animation-delay: 0.4s; }
.index_product-card:nth-child(5) { animation-delay: 0.5s; }
.index_product-card:nth-child(6) { animation-delay: 0.6s; }

/* ========================================
   底部版权区域专属样式 (footer_ 前缀)
   ======================================== */

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

.footer_top {
    padding: 60px 0;
}

.footer_container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.footer_top .footer_container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 48px;
}

.footer_section {
    display: flex;
    flex-direction: column;
}

.footer_about {
    grid-column: span 1;
}

.footer_logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer_logo img {
    max-height: 50px;
    width: auto;
}

.footer_company-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
}

.footer_tagline {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer_description {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    margin: 0;
}

.footer_section-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

.footer_link-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.footer_link-list li {
    margin: 0;
}

.footer_link-list a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.footer_link-list a:hover {
    color: var(--accent-cyan);
}

.footer_contact-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer_contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer_contact-icon {
    font-size: 1.125rem;
}

.footer_bottom {
    background: rgba(0, 0, 0, 0.2);
    padding: 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer_bottom .footer_container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer_copyright {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer_legal {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.875rem;
}

.footer_legal-link {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer_legal-link:hover {
    color: var(--accent-cyan);
}

.footer_legal .footer_divider {
    color: rgba(255, 255, 255, 0.3);
}

/* ========================================
   留言页面专属样式 (message_ 前缀)
   ======================================== */

.message-section {
    padding: 80px 0;
    background: #f8fafc;
}

.message-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 48px;
}

.message-form-wrapper {
    background: white;
    border-radius: 24px;
    padding: 48px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.message-form-header {
    text-align: center;
    margin-bottom: 40px;
}

.message-form-header h2 {
    font-size: 1.75rem;
    color: #1e293b;
    margin-bottom: 8px;
    font-weight: 600;
}

.message-form-header p {
    font-size: 1rem;
    color: #64748b;
}

.message_form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.message_form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.message_form-group label {
    font-size: 0.95rem;
    font-weight: 500;
    color: #334155;
}

.message_form-group input,
.message_form-group select,
.message_form-group textarea {
    padding: 14px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    background: #fafafa;
    transition: all 0.3s ease;
    color: #1e293b;
}

.message_form-group input:focus,
.message_form-group select:focus,
.message_form-group textarea:focus {
    outline: none;
    border-color: #06b6d4;
    background: white;
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

.message_form-group input::placeholder,
.message_form-group textarea::placeholder {
    color: #94a3b8;
}

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

.message_form-result {
    margin-bottom: 24px;
}

.message_form-success {
    background: #dcfce7;
    color: #166534;
    padding: 16px 20px;
    border-radius: 10px;
    font-size: 0.95rem;
    text-align: center;
    border: 1px solid #bbf7d0;
}

.message_form-error {
    background: #fee2e2;
    color: #991b1b;
    padding: 16px 20px;
    border-radius: 10px;
    font-size: 0.95rem;
    text-align: center;
    border: 1px solid #fecaca;
}

.message_btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 48px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.message_btn-submit {
    background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
    color: white;
    width: 100%;
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.message_btn-submit:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(6, 182, 212, 0.4);
}

.message_btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.message-contact-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-card {
    background: white;
    border-radius: 20px;
    padding: 32px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.contact-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid #e2e8f0;
}

.contact-card .contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
}

.contact-card .contact-item:last-child {
    margin-bottom: 0;
}

.contact-card .contact-icon {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #ecfeff 0%, #e0f2fe 100%);
    border-radius: 12px;
    flex-shrink: 0;
}

.contact-card .contact-label {
    font-size: 0.875rem;
    color: #64748b;
    display: block;
    margin-bottom: 4px;
}

.contact-card .contact-value {
    font-size: 0.95rem;
    color: #1e293b;
    font-weight: 500;
}



@media (max-width: 1024px) {
    .message-container {
        grid-template-columns: 1fr;
    }
    
    .message-form-wrapper {
        padding: 32px;
    }
}

@media (max-width: 768px) {
    .message_form-row {
        grid-template-columns: 1fr;
    }
    
    .message-form-wrapper {
        padding: 24px;
    }
}

/* ========================================
   联系我们页面专属样式 (contact_ 前缀)
   ======================================== */

/* 联系信息区域 */
.contact-info-section {
    padding: 60px 0;
    background: white;
}

.contact-info-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.contact-info-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 32px;
    background: #f8fafc;
    border-radius: 16px;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.contact-info-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border-color: #06b6d4;
}

.contact-info-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
    border-radius: 16px;
    font-size: 1.75rem;
    flex-shrink: 0;
}

.contact-info-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 4px;
}

.contact-info-content p {
    font-size: 0.95rem;
    color: #475569;
    margin: 0;
}

.contact-hours {
    font-size: 0.875rem !important;
    color: #94a3b8 !important;
    margin-top: 4px !important;
}

/* 地图导航区域 */
.contact-map-section {
    padding: 60px 0;
    background: #f8fafc;
}

.contact-map-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.contact-map-wrapper {
    background: white;
    border-radius: 20px;
    padding: 32px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.contact-map-wrapper h3 {
    font-size: 1.375rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid #e2e8f0;
}

.map-iframe-wrapper {
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 20px;
}

.map-iframe-wrapper iframe {
    border-radius: 16px;
}

.map-navigation {
    display: flex;
    justify-content: center;
}

.map-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.map-nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(6, 182, 212, 0.4);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .contact-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .contact-info-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-map-wrapper {
        padding: 20px;
    }
    
    .map-iframe-wrapper iframe {
        height: 300px;
    }
}

/* ========================================
   技术方案列表页面专属样式 (fangan_ 前缀)
   ======================================== */

.fangan-main-content {
    padding: 60px 0;
    background: #f8fafc;
}

.fangan-content-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 面包屑导航 */
.fangan-breadcrumb {
    margin-bottom: 32px;
    padding: 16px 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.fangan-breadcrumb-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.9rem;
    color: #64748b;
}

.fangan-breadcrumb-list a {
    color: #06b6d4;
    text-decoration: none;
    transition: color 0.3s ease;
}

.fangan-breadcrumb-list a:hover {
    color: #0891b2;
    text-decoration: underline;
}

.fangan-breadcrumb-separator {
    margin: 0 4px;
    color: #94a3b8;
}

/* 技术方案网格 */
.fangan-grid-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

/* 技术方案卡片 */
.fangan-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.fangan-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
    border-color: #06b6d4;
}

.fangan-card-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.fangan-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.fangan-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 40%, rgba(0, 0, 0, 0.7));
}

.fangan-card-category {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 12px;
    background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
    color: white;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 20px;
}

.fangan-card-content {
    padding: 20px;
}

.fangan-card-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.4;
}

.fangan-card-title a {
    color: #1e293b;
    text-decoration: none;
    transition: color 0.3s ease;
}

.fangan-card-title a:hover {
    color: #06b6d4;
}

.fangan-card-excerpt {
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 16px;
    height: 46px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.fangan-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid #f1f5f9;
}

.fangan-card-date {
    font-size: 0.85rem;
    color: #94a3b8;
}

.fangan-card-link {
    font-size: 0.875rem;
    color: #06b6d4;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 4px;
}

.fangan-card-link:hover {
    color: #0891b2;
}

/* 分页 */
.fangan-pagination-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 50px 0;
}

.fangan-pagination {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    background: white;
    padding: 12px 20px;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(33, 100, 212, 0.08);
    border: 1px solid rgba(33, 100, 212, 0.1);
}

.fangan-page-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 16px;
    border-radius: 22px;
    background: transparent;
    color: #64748b;
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.fangan-pagination a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 16px;
    border-radius: 22px;
    background: transparent;
    color: #64748b;
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.fangan-page-item:hover,
.fangan-pagination a:hover {
    background: linear-gradient(135deg, rgba(33, 100, 212, 0.1) 0%, rgba(44, 214, 246, 0.1) 100%);
    color: #2164d4;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(33, 100, 212, 0.15);
}

.fangan-pagination .current {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 16px;
    border-radius: 22px;
    background: linear-gradient(135deg, #2164d4 0%, #06b6d4 100%);
    color: white;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(33, 100, 212, 0.35);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.fangan-pagination .current:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 6px 20px rgba(33, 100, 212, 0.45);
}

.fangan-page-item:first-child,
.fangan-page-item:last-child,
.fangan-pagination a:first-child,
.fangan-pagination a:last-child {
    min-width: 60px;
}

/* 无数据状态 */
.fangan-no-data {
    text-align: center;
    padding: 80px 0;
}

.fangan-no-data-icon {
    font-size: 4rem;
    margin-bottom: 16px;
}

.fangan-no-data p {
    font-size: 1.125rem;
    color: #64748b;
}

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

@media (max-width: 900px) {
    .fangan-grid-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .fangan-grid-container {
        grid-template-columns: 1fr;
    }
    
    .fangan-card-image {
        height: 160px;
    }
}

/* ========================================
   技术方案详情页面专属样式 (fangan_detail_ 前缀)
   ======================================== */

/* 文章详情内容区域 */
.fangan-detail-content {
    padding: 60px 0;
    background: #f8fafc;
}

.fangan-detail-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 文章详情元信息 */
.fangan-detail-meta {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.fangan-detail-date,
.fangan-detail-category,
.fangan-detail-view {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

/* 文章详情主体 */
.fangan-detail-article {
    background: white;
    border-radius: 20px;
    padding: 48px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.fangan-detail-body {
    line-height: 1.8;
    color: #334155;
    font-size: 0.95rem;
}

.fangan-detail-body h1,
.fangan-detail-body h2,
.fangan-detail-body h3,
.fangan-detail-body h4 {
    color: #1e293b;
    font-weight: 600;
    margin-top: 24px;
    margin-bottom: 16px;
}

.fangan-detail-body h1 {
    font-size: 1.75rem;
    border-bottom: 2px solid #06b6d4;
    padding-bottom: 12px;
}

.fangan-detail-body h2 {
    font-size: 1.5rem;
    color: #0891b2;
}

.fangan-detail-body h3 {
    font-size: 1.25rem;
}

.fangan-detail-body p {
    margin-bottom: 16px;
}

.fangan-detail-body img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 16px 0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.fangan-detail-body ul,
.fangan-detail-body ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

.fangan-detail-body li {
    margin-bottom: 8px;
}

.fangan-detail-body a {
    color: #06b6d4;
    text-decoration: none;
    transition: color 0.3s ease;
}

.fangan-detail-body a:hover {
    color: #0891b2;
    text-decoration: underline;
}

.fangan-detail-body blockquote {
    border-left: 4px solid #06b6d4;
    padding: 16px 20px;
    background: #f0fdfa;
    margin: 20px 0;
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: #0891b2;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .fangan-detail-article {
        padding: 24px;
    }
    
    .fangan-detail-meta {
        gap: 12px;
    }
    
    .fangan-detail-date,
    .fangan-detail-category,
    .fangan-detail-view {
        font-size: 0.85rem;
        padding: 6px 12px;
    }
    
    .fangan-detail-body h1 {
        font-size: 1.5rem;
    }
    
    .fangan-detail-body h2 {
        font-size: 1.25rem;
    }
}