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

/* 自定义CSS变量 */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-light: #999999;
    --white: #ffffff;
    --light-bg: #f8fafc;
    --dark-bg: #1a202c;
    --border-color: #e2e8f0;
    --shadow-light: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-medium: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 20px 40px rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --navbar-height: 85px;
}

/* 基础样式 */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    overflow-x: hidden;
    background: #ffffff;
    padding-top: 0; /* 确保不会有额外的顶部间距 */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 通用section样式 */
section {
    position: relative;
    background: var(--white);
    z-index: 10;
    width: 100%; /* 确保宽度为100% */
    box-sizing: border-box; /* 确保内边距不会增加宽度 */
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-light);
    z-index: 1000;
    transition: var(--transition);
    transform: translateZ(0); /* 确保硬件加速 */
}

.nav-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--navbar-height);
    position: relative; /* 确保子元素的定位正确 */
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    z-index: 1010; /* 确保logo在汉堡菜单之上 */
}

.nav-logo img {
    max-height: 50px;
    max-width: 150px;
    height: auto;
    width: auto;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    margin: 0;
    padding: 0;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 16px;
    transition: var(--transition);
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.btn-login, .btn-register {
    padding: 10px 20px;
    border: none;
    border-radius: 25px;
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-login {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-login:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-register {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    box-shadow: var(--shadow-medium);
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* 主页横幅 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 25%, #667eea 50%, #764ba2 75%, #f093fb 100%);
    background-size: 400% 400%;
    animation: heroGradient 20s ease-in-out infinite;
    overflow: hidden;
    z-index: 1;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    z-index: 10;
    position: relative;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 60px;
}

.btn-primary, .btn-secondary, .btn-download {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    color: var(--primary-color);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2), 0 5px 15px rgba(0, 0, 0, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 8px 20px rgba(0, 0, 0, 0.15);
    background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(20px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.btn-download {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(20px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.btn-download:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    position: relative;
    width: 280px;
    height: 560px;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: float 6s ease-in-out infinite;
}

.phone-interface-img {
    width: 100%;
    height: 100%;
    max-width: 280px;
    max-height: 560px;
    object-fit: contain;
    filter: drop-shadow(0 25px 50px rgba(0, 0, 0, 0.4)) drop-shadow(0 0 30px rgba(102, 126, 234, 0.3));
    border-radius: 40px;
    transition: var(--transition);
}

.phone-mockup:hover .phone-interface-img {
    filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.5)) drop-shadow(0 0 40px rgba(102, 126, 234, 0.4));
    transform: translateY(-5px);
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-element {
    position: absolute;
    color: rgba(255, 255, 255, 0.4);
    font-size: 2.5rem;
    animation: orbit 12s linear infinite;
    animation-delay: var(--delay);
    filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.3));
    text-shadow: 0 0 30px rgba(255, 255, 255, 0.5);
}

.floating-element:nth-child(1) {
    top: 20%;
    left: 20%;
}

.floating-element:nth-child(2) {
    top: 60%;
    right: 20%;
}

.floating-element:nth-child(3) {
    bottom: 20%;
    left: 30%;
}

.floating-element:nth-child(4) {
    top: 10%;
    right: 30%;
}

.floating-element:nth-child(5) {
    bottom: 40%;
    right: 10%;
}

.floating-element:nth-child(6) {
    top: 40%;
    left: 10%;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    overflow: hidden;
    pointer-events: none;
}

.hero-light-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    opacity: 0.6;
    animation: pulse 4s ease-in-out infinite;
    pointer-events: none;
}

/* 优化后的Hero科技网格背景 */
.hero-tech-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    will-change: transform;
    transform: translateZ(0);
}

/* 简化的电路线条 */
.circuit-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(45deg, transparent 30%, rgba(102, 126, 234, 0.05) 31%, rgba(102, 126, 234, 0.05) 33%, transparent 34%),
        linear-gradient(-45deg, transparent 30%, rgba(246, 147, 251, 0.05) 31%, rgba(246, 147, 251, 0.05) 33%, transparent 34%);
    background-size: 100px 100px, 150px 150px;
    will-change: transform;
    transform: translateZ(0);
}

.bg-shape {
    position: absolute;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
    border: 1px solid rgba(255, 255, 255, 0.05);
    will-change: transform;
}

.shape-1 {
    width: 300px;
    height: 300px;
    top: 5%;
    right: -150px;
    animation-delay: 0s;
    background: linear-gradient(45deg, rgba(246, 147, 251, 0.1), rgba(255, 255, 255, 0.05));
}

.shape-2 {
    width: 250px;
    height: 250px;
    bottom: 15%;
    left: -125px;
    animation-delay: 4s;
    background: linear-gradient(45deg, rgba(102, 126, 234, 0.1), rgba(255, 255, 255, 0.05));
}

/* 简化的数据流动效果 */
.data-streams {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(1px 1px at 20% 30%, rgba(102, 126, 234, 0.2), transparent),
        radial-gradient(1px 1px at 40% 70%, rgba(246, 147, 251, 0.2), transparent),
        radial-gradient(1px 1px at 80% 20%, rgba(255, 255, 255, 0.3), transparent);
    background-size: 200px 200px, 300px 300px, 150px 150px;
    will-change: transform;
    transform: translateZ(0);
}

/* 优化的数据包传输效果 */
.data-packets {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.packet {
    position: absolute;
    width: 3px;
    height: 3px;
    background: rgba(102, 126, 234, 0.6);
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(102, 126, 234, 0.4);
    animation: packetMove 8s linear infinite;
    will-change: transform;
}

.packet-1 {
    top: 25%;
    left: 5%;
    animation-delay: 0s;
    background: rgba(102, 126, 234, 0.6);
}

.packet-2 {
    top: 45%;
    left: 5%;
    animation-delay: 4s;
    background: rgba(246, 147, 251, 0.6);
    box-shadow: 0 0 8px rgba(246, 147, 251, 0.4);
}

/* 简化的云朵元素 */
.cloud-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.cloud-element {
    position: absolute;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    animation: cloudFloat 20s ease-in-out infinite;
    will-change: transform;
}

.cloud-1 {
    width: 100px;
    height: 50px;
    top: 15%;
    left: 10%;
    animation-delay: 0s;
}

.cloud-1::before {
    content: '';
    position: absolute;
    width: 60px;
    height: 30px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 30px;
    top: -15px;
    left: 20px;
}

.cloud-2 {
    width: 80px;
    height: 40px;
    top: 60%;
    right: 15%;
    animation-delay: 10s;
}

/* 优化的信号波纹效果 */
.signal-waves {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.wave {
    position: absolute;
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 50%;
    animation: waveExpand 3s ease-out infinite;
    will-change: transform;
}

.wave-1 {
    top: 20%;
    right: 25%;
    width: 30px;
    height: 30px;
    animation-delay: 0s;
}

.wave-2 {
    bottom: 30%;
    left: 15%;
    width: 40px;
    height: 40px;
    animation-delay: 1.5s;
    border-color: rgba(246, 147, 251, 0.2);
}

/* 产品特点 */
.features {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    position: relative;
    z-index: 20;
    overflow: hidden;
}

/* 背景装饰 */
.features::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(102, 126, 234, 0.05) 0%, transparent 70%);
    z-index: -1;
}

.features::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30%;
    height: 60%;
    background: radial-gradient(circle at bottom left, rgba(118, 75, 162, 0.05) 0%, transparent 70%);
    z-index: -1;
}

/* 核心特色展示 */
.core-features {
    margin-bottom: 80px;
    position: relative;
}

.core-feature-card {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: var(--white);
    padding: 60px;
    border-radius: 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 45px rgba(99, 102, 241, 0.3);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.core-feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px rgba(99, 102, 241, 0.4);
}

.core-feature-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

.core-feature-card::after {
    content: '';
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.feature-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 8px 22px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.core-feature-card:hover .feature-badge {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(1.05);
}

.feature-icon-large {
    width: 130px;
    height: 130px;
    margin: 0 auto 30px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon-large::after {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: rotate 8s linear infinite;
}

.core-feature-card:hover .feature-icon-large {
    transform: scale(1.05);
    background: rgba(255, 255, 255, 0.18);
}

.core-feature-card h3 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -1px;
    position: relative;
    display: inline-block;
}

.core-feature-card h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
}

.feature-description {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 40px;
    line-height: 1.7;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
}

.feature-specs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 40px;
    padding: 0 20px;
}

.spec-item {
    text-align: center;
    padding: 25px 20px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.spec-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #a78bfa, #c4b5fd);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

.core-feature-card:hover .spec-item {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-5px);
}

.core-feature-card:hover .spec-item::before {
    transform: scaleX(1);
}

.spec-label {
    display: block;
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.spec-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(90deg, #ffffff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

/* 特色功能网格 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.feature-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--primary-color);
}

.feature-card:hover::before {
    left: 0;
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.8rem;
    position: relative;
}

.feature-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: inherit;
    animation: pulse 2s ease-in-out infinite;
    z-index: -1;
}

.feature-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
    font-size: 0.95rem;
}

.feature-highlights {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 25px;
}

.highlight {
    background: var(--light-bg);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid var(--primary-color);
}

.feature-image {
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 图表和可视化元素 */
.performance-chart {
    display: flex;
    gap: 8px;
    align-items: end;
    height: 60px;
    justify-content: center;
}

.chart-bar {
    width: 12px;
    background: linear-gradient(0deg, var(--primary-color), var(--accent-color));
    border-radius: 6px 6px 0 0;
    animation: growUp 2s ease-out;
}

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

.storage-bar {
    width: 120px;
    height: 12px;
    background: #e2e8f0;
    border-radius: 6px;
    overflow: hidden;
    margin: 0 auto 10px;
}

.storage-used {
    width: 30%;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    animation: expand 2s ease-out;
}

.storage-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.security-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
}

.security-shield {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #10b981, #059669);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    animation: pulse 2s ease-in-out infinite;
}

.multi-device {
    display: flex;
    gap: 15px;
    justify-content: center;
    align-items: center;
}

.device-icon {
    width: 35px;
    height: 35px;
    background: var(--light-bg);
    border: 2px solid var(--primary-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1rem;
}

.multi-app {
    display: flex;
    gap: 10px;
    justify-content: center;
    align-items: center;
}

.app-instance {
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.8rem;
}

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

.data-amount {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.data-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* 智能同步指示器 */
.sync-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
}

.sync-devices {
    display: flex;
    align-items: center;
    gap: 20px;
}

.sync-device {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.sync-arrow {
    color: var(--primary-color);
    font-size: 1.5rem;
    animation: bounce 2s ease-in-out infinite;
}

/* 弹性资源配置指示器 */
.resource-allocation {
    display: flex;
    justify-content: center;
    align-items: center;
}

.resource-bars {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 120px;
}

.resource-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
}

.resource-label {
    width: 30px;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.7rem;
}

.resource-progress {
    flex: 1;
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
}

.resource-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    animation: resourceFill 2s ease-out;
    transition: width 0.3s ease;
}

/* 快速体验模块 */
.quick-experience {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 40px;
    border-radius: 20px;
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.quick-experience::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

.quick-experience h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 10px;
    position: relative;
    z-index: 2;
}

.quick-experience > p {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 30px;
    position: relative;
    z-index: 2;
}

.experience-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 30px;
    position: relative;
    z-index: 2;
}

.experience-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 10px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
    text-align: left;
}

.experience-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.experience-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.experience-content {
    flex: 1;
}

.experience-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 3px;
}

.experience-content p {
    font-size: 0.85rem;
    opacity: 0.8;
    margin: 0;
    line-height: 1.3;
}

.experience-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    position: relative;
    z-index: 2;
}

.btn-experience {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 25px;
    border: none;
    border-radius: 25px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-experience.primary {
    background: var(--white);
    color: var(--primary-color);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.btn-experience.primary:hover {
    background: #f8fafc;
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
}

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

.btn-experience.secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* 移动端响应式 */
@media (max-width: 768px) {
    .experience-features {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .experience-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-experience {
        width: 100%;
        max-width: 200px;
        justify-content: center;
    }
}

/* 技术优势 */
.tech-advantages {
    text-align: center;
    padding: 60px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-light);
}

.tech-advantages h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 40px;
}

/* Features区域技术优势展示网格 */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.tech-item {
    text-align: center;
    padding: 30px 20px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--light-bg), var(--white));
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.tech-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.tech-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.tech-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    padding-bottom: 20px;
}

.section-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    border-radius: 3px;
}

.section-header h2 {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
    letter-spacing: -1px;
    position: relative;
    display: inline-block;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}



.feature-image {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.performance-chart {
    display: flex;
    gap: 8px;
    align-items: end;
    height: 80px;
}

.chart-bar {
    width: 20px;
    background: linear-gradient(0deg, var(--primary-color), var(--accent-color));
    border-radius: 4px 4px 0 0;
    animation: growUp 2s ease-out;
}

.speed-indicator {
    width: 100px;
    height: 100px;
    position: relative;
}

.speedometer {
    width: 100%;
    height: 100%;
    border: 8px solid #e2e8f0;
    border-top: 8px solid var(--primary-color);
    border-radius: 50%;
    position: relative;
    animation: spin 2s linear infinite;
}

.needle {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 3px;
    height: 40px;
    background: var(--secondary-color);
    transform-origin: bottom center;
    transform: translate(-50%, -100%) rotate(45deg);
}

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

.storage-bar {
    width: 200px;
    height: 20px;
    background: #e2e8f0;
    border-radius: 10px;
    overflow: hidden;
    margin: 0 auto 15px;
}

.storage-used {
    width: 30%;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    animation: expand 2s ease-out;
}

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

/* 核心优势 */
.advantages {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
}

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

.advantages-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 40px;
    line-height: 1.2;
}

.advantage-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.advantage-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.advantage-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    flex-shrink: 0;
    backdrop-filter: blur(10px);
}

.advantage-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.advantage-content p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.advantages-visual {
    position: relative;
    height: 400px;
}

.cloud-infrastructure {
    position: relative;
    width: 100%;
    height: 100%;
}

.cloud-layer {
    position: absolute;
    width: 100%;
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.layer-1 {
    top: 0;
}

.layer-2 {
    top: 50%;
    transform: translateY(-50%);
}

.layer-3 {
    bottom: 0;
}

.cloud-node {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    backdrop-filter: blur(10px);
}

.connection-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* 价格方案 */
.pricing {
    padding: 100px 0;
    background: var(--light-bg);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.pricing-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.pricing-card.popular {
    transform: scale(1.05);
    box-shadow: var(--shadow-heavy);
    border: 2px solid var(--primary-color);
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-10px);
}

.popular-badge {
    position: absolute;
    top: 20px;
    right: -30px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 8px 40px;
    font-size: 0.9rem;
    font-weight: 600;
    transform: rotate(45deg);
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 5px;
    margin-bottom: 30px;
}

.currency {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

.features-list {
    list-style: none;
    margin-bottom: 40px;
}

.features-list li {
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--text-secondary);
}

.features-list i {
    color: var(--primary-color);
    font-size: 1.1rem;
}

.btn-pricing {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    background: var(--border-color);
    color: var(--text-primary);
}

.btn-pricing.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    box-shadow: var(--shadow-medium);
}

.btn-pricing:hover {
    transform: translateY(-2px);
}

.btn-pricing.primary:hover {
    box-shadow: var(--shadow-heavy);
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.contact-info p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-method {
    display: flex;
    gap: 20px;
    align-items: center;
}

.contact-method i {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.contact-method h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.contact-method p {
    color: var(--text-secondary);
    margin: 0;
}

.contact-form {
    background: var(--light-bg);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 30px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.contact-form textarea {
    resize: vertical;
    margin-bottom: 30px;
}

.btn-submit {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-medium);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

/* 页脚 */
.footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-logo i {
    font-size: 28px;
    color: var(--primary-color);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 20px;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    text-decoration: none;
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.footer-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 10px;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* 动画 */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes orbit {
    from { transform: rotate(0deg) translateX(100px) rotate(0deg); }
    to { transform: rotate(360deg) translateX(100px) rotate(-360deg); }
}

@keyframes growUp {
    from { height: 0; }
    to { height: var(--height, 100%); }
}

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

@keyframes expand {
    from { width: 0; }
    to { width: 30%; }
}

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



@keyframes cloudFloat {
    0%, 100% {
        transform: translateY(0px) translateX(0px);
    }
    50% {
        transform: translateY(-8px) translateX(5px);
    }
}

@keyframes waveExpand {
    0% {
        transform: scale(0);
        opacity: 0.8;
    }
    100% {
        transform: scale(2.5);
        opacity: 0;
    }
}

@keyframes packetMove {
    0% {
        transform: translateX(0) translateY(0);
        opacity: 0;
    }
    10% {
        opacity: 0.8;
    }
    90% {
        opacity: 0.8;
    }
    100% {
        transform: translateX(calc(100vw - 100px)) translateY(-30px);
        opacity: 0;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    /* 针对小屏幕设备的优化 */
    @media (max-width: 480px) {
        .nav-menu {
            padding: 20px 15px;
        }
        
        .nav-menu a {
            font-size: 16px;
            padding: 12px 0;
        }
        
        .hero-content h1 {
            font-size: 2rem;
        }
        
        .hero-content p {
            font-size: 1rem;
        }
        
        .hero-buttons {
            gap: 10px;
        }
        
        .btn-primary, .btn-secondary, .btn-download {
            padding: 12px 20px;
            font-size: 0.9rem;
        }
        
        .hero-stats {
            flex-direction: column;
            gap: 20px;
        }
        
    }
    
    /* 针对极小屏幕设备的优化 (最大360px) */
    @media (max-width: 360px) {
        .hero-content h1 {
            font-size: 1.8rem;
        }
        
        .hero-content p {
            font-size: 0.9rem;
        }
        
        .stat-number {
            font-size: 1.5rem;
        }
        
        .stat-label {
            font-size: 0.8rem;
        }
    }
    
    /* 针对较大移动设备的优化 */
    @media (min-width: 481px) and (max-width: 768px) {
        .hero-stats {
            gap: 25px;
        }
    }
    
    /* 桌面端优化 - 确保大屏幕布局正常显示 */
    @media (min-width: 1200px) {
        .nav-container {
            max-width: 1400px;
            padding: 0 40px;
        }
        
        .nav-menu {
            gap: 40px;
        }
    }
    
    /* 超大屏幕优化 */
    @media (min-width: 1600px) {
        .nav-container {
            max-width: 1600px;
            padding: 0 60px;
        }
    }
    .hamburger {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 30px;
        height: 20px;
        cursor: pointer;
        z-index: 1010;
    }
    
    .hamburger.active {
        z-index: 1020;
    }

    /* 移动端导航栏优化 */
    .navbar {
        will-change: transform;
    }

    .navbar.hidden {
        transform: translateY(-100%);
    }

    .hamburger span {
        width: 100%;
        height: 3px;
        background-color: var(--primary-color);
        border-radius: 3px;
        transition: all 0.3s ease-in-out;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    /* 菜单显示时的遮罩层 - 覆盖整个视口 */
    .menu-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.05);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 999;
    }
    
    .menu-overlay.active {
        opacity: 1;
        visibility: visible;
    }
    
    /* 移动端菜单标题 */
    .menu-title {
        position: absolute;
        top: 18px;
        left: 50%;
        transform: translateX(-50%);
        font-size: 15px;
        font-weight: 600;
        color: var(--text-primary);
        text-align: center;
        width: calc(100% - 60px);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        z-index: 999;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: 0;
        width: 200px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding: 55px 8px 0;
        gap: 0;
        transform: translateX(100%);
        transition: transform 0.3s ease-in-out;
        box-shadow: -2px 0 8px rgba(0, 0, 0, 0.08);
        z-index: 1000;
        overflow-y: auto;
        display: flex;
        margin: 0;
        border: none;
    }
    
    /* 确保菜单内容区域完全填充 */
    .nav-menu ul {
        width: 100%;
        margin: 0;
        padding: 0;
        flex: 1;
        display: flex;
        flex-direction: column;
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    /* 菜单关闭按钮 */
    .menu-close {
        position: absolute;
        top: 18px;
        right: 10px;
        width: 36px;
        height: 36px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: transparent;
        border-radius: 50%;
        cursor: pointer;
        z-index: 1010;
        transition: background 0.3s ease;
        border: none;
        outline: none;
    }
    
    .menu-close:hover {
        background: rgba(0, 0, 0, 0.05);
    }
    
    /*.menu-close:before,*/
    /*.menu-close:after {*/
    /*    content: '';*/
    /*    position: absolute;*/
    /*    width: 20px;*/
    /*    height: 2px;*/
    /*    background-color: #333;*/
    /*    border-radius: 2px;*/
    /*}*/
    
    .menu-close:before {
        transform: rotate(45deg);
    }
    
    .menu-close:after {
        transform: rotate(-45deg);
    }

    .nav-menu li {
        margin: 0;
        width: 100%;
        text-align: center;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    .nav-menu a {
        font-size: 14px;
        padding: 12px 0;
        display: block;
        width: 100%;
        color: var(--text-primary);
        transition: all 0.3s ease;
        font-weight: 500;
        text-align: center;
        margin: 0;
        border: none;
    }
    
    .nav-menu a:hover {
        color: var(--primary-color);
    }

    .nav-actions {
        display: none;
    }
    
    .nav-logo img {
        max-height: 40px;
        max-width: 120px;
    }
    
    .nav-logo {
        font-size: 20px;
    }

    /* 修复hero部分与导航栏重叠的问题 */
    .hero {
        padding-top: calc(var(--navbar-height) + 15px);
        min-height: calc(100vh - var(--navbar-height));
    }
    
    /* 确保其他页面部分不被导航栏遮挡 */
    .section-header,
    .information,
    .features,
    .advantages,
    .pricing,
    .contact,
    .footer {
        scroll-margin-top: var(--navbar-height);
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
        padding-top: 20px;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .hero-stats {
        justify-content: center;
        gap: 30px;
    }

    /* 修复Hero背景在移动端的显示问题 */
    .hero-background {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        z-index: -1;
    }

    /* 其他原有的响应式设计保持不变 */
    .advantages-content {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .phone-mockup {
        width: 220px;
        height: 440px;
    }
    
    .phone-interface-img {
        max-width: 220px;
        max-height: 440px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .core-feature-card {
        padding: 40px 30px;
    }
    
    .feature-specs {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .tech-advantages {
        padding: 40px 20px;
    }
    
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .feature-description {
        font-size: 1rem;
    }
    
    .core-feature-card h3 {
        font-size: 2rem;
    }

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

    .pricing-card.popular {
        transform: none;
    }

    .pricing-card.popular:hover {
        transform: translateY(-10px);
    }

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

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

/* 最新资讯样式 */
.information {
    padding: 100px 0;
    background: var(--white);
    position: relative;
    z-index: 600;
    isolation: isolate;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

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

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

.news-content {
    padding: 30px;
}

.news-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
    line-height: 1.4;
}

.news-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.news-date {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* 使用指南样式 */
.guide {
    padding: 100px 0;
    background: var(--light-bg);
    position: relative;
    z-index: 600;
    isolation: isolate;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.guide-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

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

.guide-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
}

.guide-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.guide-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 帮助中心样式 */
.help {
    padding: 100px 0;
    background: var(--white);
}

.help-content {
    max-width: 800px;
    margin: 0 auto;
}

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

.faq-item {
    background: var(--light-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
}

.faq-question {
    padding: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--white);
}

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

.faq-question h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.faq-question i {
    color: var(--primary-color);
    transition: var(--transition);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease;
    background: var(--light-bg);
}

.faq-item.active .faq-answer {
    padding: 25px;
    max-height: 500px;
    overflow-y: auto;
}

.faq-answer ul, .faq-answer ol {
    margin: 15px 0;
    padding-left: 20px;
}

.faq-answer li {
    margin-bottom: 8px;
    line-height: 1.6;
}

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

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* 页面头部样式 */
.page-header {
    padding: 150px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    text-align: center;
}

.page-header-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.page-header-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumb a:hover {
    color: var(--white);
}

/* 资讯页面样式 */
.news-section {
    padding: 80px 0;
    background: var(--light-bg);
}

.news-filter {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding: 20px;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.filter-tabs {
    display: flex;
    gap: 10px;
}

.filter-tab {
    padding: 10px 20px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-tab.active,
.filter-tab:hover {
    background: var(--primary-color);
    color: var(--white);
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--light-bg);
    border-radius: 25px;
    padding: 8px 15px;
    width: 300px;
}

.search-box input {
    border: none;
    background: transparent;
    outline: none;
    flex: 1;
    padding: 8px;
    font-size: 0.9rem;
}

.search-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: var(--transition);
}

.search-btn:hover {
    background: rgba(102, 126, 234, 0.1);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 40px;
}

.news-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 30px;
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.news-item.featured {
    border: 2px solid var(--primary-color);
}

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

.news-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
}

.news-tag {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--accent-color);
    color: var(--white);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.news-tag.hot {
    background: #ff4757;
}

.news-content {
    padding: 30px;
    display: flex;
    flex-direction: column;
}

.news-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.news-category {
    color: var(--primary-color);
    font-weight: 600;
}

.news-date,
.news-views {
    color: var(--text-light);
}

.news-item h2,
.news-item h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
    line-height: 1.4;
}

.news-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    flex: 1;
}

.news-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition);
}

.read-more:hover {
    gap: 10px;
}

.news-social {
    display: flex;
    gap: 10px;
}

.social-btn {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 15px;
    transition: var(--transition);
    font-size: 0.9rem;
}

.social-btn:hover {
    background: var(--light-bg);
    color: var(--primary-color);
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
}

.page-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.page-btn:hover:not(:disabled) {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-numbers {
    display: flex;
    gap: 5px;
    align-items: center;
}

.page-num {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--white);
    color: var(--text-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.page-num.active,
.page-num:hover {
    background: var(--primary-color);
    color: var(--white);
}

.page-dots {
    color: var(--text-light);
    padding: 0 10px;
}

/* 指南页面样式 */
.guide-categories {
    padding: 40px 0;
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
}

.category-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.category-tab {
    padding: 12px 25px;
    border: 2px solid var(--border-color);
    background: var(--white);
    color: var(--text-primary);
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.category-tab.active,
.category-tab:hover {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: var(--white);
}

.guide-content {
    padding: 80px 0;
    background: var(--light-bg);
}

.guide-category-content {
    display: none;
}

.guide-category-content.active {
    display: block;
}

.guide-category-content h2 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 40px;
    text-align: center;
}

.guide-item {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.guide-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.guide-header {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.guide-header .guide-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
}

.guide-header h3 {
    flex: 1;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.difficulty {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

.difficulty.easy {
    background: #d4edda;
    color: #155724;
}

.difficulty.medium {
    background: #fff3cd;
    color: #856404;
}

.difficulty.hard {
    background: #f8d7da;
    color: #721c24;
}

.guide-preview {
    height: 180px;
    overflow: hidden;
}

.guide-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.guide-summary {
    padding: 20px;
}

.guide-summary p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 15px;
}

.guide-steps {
    display: flex;
    gap: 20px;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 20px;
}

.guide-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    padding: 0 20px 20px;
}

.guide-link:hover {
    gap: 12px;
}

/* 快速入门样式 */
.quick-start {
    padding: 80px 0;
    background: var(--white);
    text-align: center;
}

.quick-start h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.quick-start > p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 50px;
}

.quick-steps {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.quick-step {
    text-align: center;
    flex: 1;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.5;
}

.step-arrow {
    color: var(--primary-color);
    font-size: 1.5rem;
}

@media (max-width: 768px) {
    .news-item {
        grid-template-columns: 1fr;
    }
    
    .news-filter {
        flex-direction: column;
        gap: 20px;
    }
    
    .search-box {
        width: 100%;
    }
    
    .quick-steps {
        flex-direction: column;
        gap: 40px;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
    
    .page-header-content h1 {
        font-size: 2rem;
    }
}

/* 帮助中心页面样式 */
.help-search-section {
    padding: 60px 0;
    background: var(--white);
}

.help-search-box {
    max-width: 600px;
    margin: 0 auto 30px;
    position: relative;
    display: flex;
    align-items: center;
    background: var(--light-bg);
    border-radius: 50px;
    padding: 15px 20px;
    box-shadow: var(--shadow-light);
}

.help-search-box i {
    color: var(--primary-color);
    margin-right: 15px;
    font-size: 1.2rem;
}

.help-search-box input {
    flex: 1;
    border: none;
    background: transparent;
    outline: none;
    font-size: 1rem;
    padding: 10px;
}

.search-submit {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    padding: 12px 25px;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.search-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.popular-searches {
    text-align: center;
    color: var(--text-secondary);
}

.popular-searches a {
    color: var(--primary-color);
    text-decoration: none;
    margin: 0 15px;
    transition: var(--transition);
}

.popular-searches a:hover {
    text-decoration: underline;
}

.help-navigation {
    padding: 80px 0;
    background: var(--light-bg);
}

.help-nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.help-nav-item {
    background: var(--white);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    cursor: pointer;
}

.help-nav-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.help-nav-item .nav-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
}

.help-nav-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.help-nav-item p {
    color: var(--text-secondary);
    line-height: 1.5;
}

.faq-section {
    padding: 80px 0;
    background: var(--white);
}

.faq-section h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 60px;
}

.faq-categories {
    display: flex;
    flex-direction: column;
    gap: 50px;
}

.faq-category h3 {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 30px;
}

.faq-category h3 i {
    color: var(--primary-color);
    font-size: 1.3rem;
}

.contact-support {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
}

.support-banner {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.support-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.support-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 40px;
}

.support-options {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.support-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 25px;
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.support-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

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

.support-illustration {
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.8);
    animation: pulse 2s ease-in-out infinite;
}

/* 联系我们页面样式 */
.contact-methods-section {
    padding: 80px 0;
    background: var(--light-bg);
}

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

.contact-intro h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.contact-intro p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.contact-methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.contact-method-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.contact-method-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.contact-method-card .method-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
}

.contact-method-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.contact-method-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.method-info {
    margin-bottom: 25px;
}

.phone-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
    margin-bottom: 5px;
}

.email {
    font-weight: 600;
    color: var(--primary-color);
    display: block;
    margin-bottom: 5px;
}

.service-time,
.contact-person {
    font-size: 0.9rem;
    color: var(--text-light);
}

.contact-action-btn {
    display: inline-block;
    padding: 12px 25px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    text-decoration: none;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.contact-action-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.wechat-service {
    padding: 80px 0;
    background: var(--white);
}

.wechat-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.wechat-info h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.wechat-info p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.wechat-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.wechat-feature {
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--text-primary);
}

.wechat-feature i {
    color: var(--primary-color);
    font-size: 1.2rem;
    width: 20px;
}

.wechat-qr {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.qr-card {
    text-align: center;
    background: var(--light-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.qr-code {
    width: 150px;
    height: 150px;
    margin: 0 auto 20px;
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-placeholder {
    text-align: center;
    color: var(--text-light);
}

.qr-placeholder i {
    font-size: 3rem;
    margin-bottom: 10px;
    display: block;
}

.qr-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.qr-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.feedback-section {
    padding: 80px 0;
    background: var(--light-bg);
}

.feedback-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
}

.feedback-form-wrapper h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.feedback-form-wrapper p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.feedback-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.feedback-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.upload-label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
}

.upload-label:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.upload-label input[type="file"] {
    display: none;
}

.submit-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    justify-content: center;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.feedback-tips h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 30px;
}

.feedback-tips ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.feedback-tips li {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.feedback-tips li i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-top: 5px;
    width: 30px;
    text-align: center;
}

.feedback-tips strong {
    color: var(--text-primary);
    margin-bottom: 5px;
    display: block;
}

.feedback-tips p {
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

.company-info {
    padding: 80px 0;
    background: var(--white);
}

.company-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.company-details h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 40px;
}

.company-item {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-bottom: 30px;
}

.company-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.company-text h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.company-text p {
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

.company-map {
    height: 400px;
}

.map-placeholder {
    width: 100%;
    height: 100%;
    background: var(--light-bg);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    border: 2px solid var(--border-color);
}

.map-placeholder i {
    font-size: 3rem;
    margin-bottom: 15px;
}

/* 响应式样式补充 */
@media (max-width: 768px) {
    .help-nav-grid {
        grid-template-columns: 1fr;
    }
    
    .support-banner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact-methods-grid {
        grid-template-columns: 1fr;
    }
    
    .wechat-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .wechat-qr {
        justify-content: center;
    }
    
    .feedback-content {
        grid-template-columns: 1fr;
    }
    
    .feedback-form .form-row {
        grid-template-columns: 1fr;
    }
    
    .company-content {
        grid-template-columns: 1fr;
    }
    
    .faq-categories {
        gap: 30px;
    }
}

/* 滚动行为 */
html {
    scroll-behavior: smooth;
}

/* AOS动画样式 */
[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: none;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

/* 社交链接增强样式 */
.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    transition: all 0.3s ease;
    position: relative;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.social-link:hover {
    background: rgba(102, 126, 234, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.social-link i {
    font-size: 20px;
    color: #ffffff;
    transition: all 0.3s ease;
}

.social-link:hover i {
    color: var(--primary-color);
    transform: scale(1.1);
}

.social-link span {
    display: none !important;
}

/* 二维码弹窗样式 */
.qr-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 99999;
    backdrop-filter: blur(5px);
    isolation: isolate;
}

.qr-modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--white);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    max-width: 350px;
    width: 90%;
    text-align: center;
    animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.qr-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    color: #aaa;
    cursor: pointer;
    transition: color 0.3s ease;
}

.qr-close:hover {
    color: #333;
}

.qr-header h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 20px;
    font-weight: 600;
}

.qr-body img {
    width: 200px;
    height: 200px;
    border: 2px solid #f0f0f0;
    border-radius: 12px;
    margin-bottom: 15px;
    object-fit: contain;
}

.qr-body p {
    color: var(--text-secondary);
    font-size: 14px;
    margin: 0;
}

/* 浮动二维码提示 */
.qr-tooltip {
    position: fixed;
    display: none;
    background: var(--white);
    border: 2px solid var(--primary-color);
    border-radius: 12px;
    padding: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    z-index: 50000;
    text-align: center;
    min-width: 140px;
    max-width: 140px;
    pointer-events: none;
    isolation: isolate;
    transform: translateY(10px);
    opacity: 0;
    transition: all 0.2s ease-out;
    /* 添加更明显的样式 */
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

.qr-tooltip img {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    margin-bottom: 0;
    object-fit: contain;
}

.qr-tooltip p {
    display: none;
}

.qr-tooltip.show {
    display: block !important;
    opacity: 1 !important;
    transform: translateY(0) !important;
    visibility: visible !important;
}


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

/* 移动端适配 */
@media (max-width: 768px) {
    .social-link {
        width: 44px;
        height: 44px;
    }
    
    .social-link i {
        font-size: 18px;
    }
    
    .qr-modal-content {
        padding: 20px;
        max-width: 300px;
    }
    
    .qr-body img {
        width: 160px;
        height: 160px;
    }
    
    .qr-tooltip {
        min-width: 120px;
        max-width: 120px;
        padding: 8px;
    }
    
    .qr-tooltip img {
        width: 100px;
        height: 100px;
    }
}

/* =========================
   FAQ分类标签功能
   ========================= */

/* FAQ分类标签 */
.faq-category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
    justify-content: center;
    padding: 0 20px;
}

.category-tab {
    background: white;
    border: 2px solid #e5e7eb;
    padding: 12px 24px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
    color: #6b7280;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 120px;
    justify-content: center;
}

.category-tab:hover {
    border-color: #667eea;
    color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

.category-tab.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: #667eea;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
}

.category-tab i {
    font-size: 16px;
}

/* 查看更多按钮 */
.show-more-container {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e5e7eb;
}

.show-more-btn {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border: 2px solid #e5e7eb;
    padding: 12px 24px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
    color: #64748b;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.show-more-btn:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: #667eea;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

.show-more-btn.expanded {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    border-color: #ef4444;
    color: white;
}

.show-more-btn.expanded:hover {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.4);
    background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
}

.back-to-top i {
    font-size: 20px;
}

/* FAQ分类隐藏/显示 */
.faq-category.hidden {
    display: none !important;
}

.faq-item.hidden {
    display: none !important;
}

/* FAQ分类高亮效果 */
.faq-category.highlighted {
    background: #f0f9ff;
    border: 2px solid #0ea5e9;
    border-radius: 12px;
    padding: 20px;
    transition: all 0.3s ease;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .faq-category-tabs {
        gap: 8px;
        margin-bottom: 30px;
    }
    
    .category-tab {
        padding: 10px 16px;
        font-size: 13px;
        min-width: auto;
        flex: 1;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
    
    .back-to-top i {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .faq-category-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .category-tab {
        width: 100%;
        max-width: 200px;
    }
}

/* =========================
   FAQ卡片式布局样式
   ========================= */

/* FAQ卡片网格 */
.faq-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.faq-card {
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    border: 1px solid #f1f5f9;
    cursor: pointer;
}

.faq-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.12);
    border-color: var(--primary-color);
}

.faq-card-header {
    padding: 24px;
    border-bottom: 1px solid #f1f5f9;
}

.faq-card-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.faq-card-icon i {
    font-size: 24px;
    color: white;
}

.faq-card-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.faq-card-header p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.faq-card-preview {
    padding: 20px 24px;
}

.faq-card-preview ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.faq-card-preview li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.4;
}

.faq-card-preview li i {
    color: var(--primary-color);
    font-size: 12px;
    margin-top: 2px;
    flex-shrink: 0;
}

.faq-card-footer {
    padding: 20px 24px;
    border-top: 1px solid #f1f5f9;
}

.faq-card-btn {
    width: 100%;
    padding: 12px 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.faq-card-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
}

.faq-card-btn i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.faq-card-btn:hover i {
    transform: translateX(2px);
}

/* 联系客服卡片特殊样式 */
.faq-card-contact {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.faq-card-contact .faq-card-header {
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.faq-card-contact .faq-card-header h3,
.faq-card-contact .faq-card-header p {
    color: white;
}

.faq-card-contact .faq-card-icon {
    background: rgba(255, 255, 255, 0.2);
}

.faq-card-contact .faq-card-footer {
    border-top-color: rgba(255, 255, 255, 0.2);
}

.contact-options {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.contact-btn {
    flex: 1;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    text-decoration: none;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.contact-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-1px);
}

.faq-card-contact .faq-card-btn {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.faq-card-contact .faq-card-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* FAQ详情模态框 */
.faq-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: none;
    animation: fadeIn 0.3s ease;
}

.faq-modal.active {
    display: block;
}

.faq-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
}

.faq-modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    animation: slideUp 0.3s ease;
}

.faq-modal-header {
    padding: 24px;
    border-bottom: 1px solid #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.faq-modal-header h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 0;
}

.faq-modal-close {
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.faq-modal-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.faq-modal-body {
    padding: 32px;
    max-height: calc(80vh - 120px);
    overflow-y: auto;
}

.faq-modal-body h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--primary-color);
}

.faq-modal-body p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.faq-modal-body ul,
.faq-modal-body ol {
    margin-left: 20px;
    margin-bottom: 16px;
}

.faq-modal-body li {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.faq-modal-body strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* 模态框中FAQ项目样式 */
.modal-faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal-faq-item {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.modal-faq-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.1);
}

.modal-faq-question {
    padding: 16px 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: white;
    transition: all 0.3s ease;
    user-select: none;
}

.modal-faq-question:hover {
    background: #f1f5f9;
}

.modal-faq-question h4 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    padding-right: 12px;
}

.modal-faq-question i {
    color: var(--primary-color);
    font-size: 14px;
    transition: transform 0.3s ease;
}

.modal-faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    padding: 0 20px;
    background: white;
}

.modal-faq-item.active .modal-faq-answer {
    max-height: 500px;
    padding: 16px 20px 20px;
    overflow-y: auto;
}

.modal-faq-item.active .modal-faq-question {
    background: #f0f9ff;
    border-bottom: 1px solid #e2e8f0;
}

.modal-faq-answer p {
    margin: 0 0 12px 0;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.modal-faq-answer p:last-child {
    margin-bottom: 0;
}

.modal-faq-answer ul,
.modal-faq-answer ol {
    margin: 8px 0 12px 20px;
    padding: 0;
}

.modal-faq-answer li {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.modal-faq-answer strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* 模态框响应式设计 */
@media (max-width: 768px) {
    .modal-faq-question {
        padding: 14px 16px;
    }
    
    .modal-faq-question h4 {
        font-size: 15px;
    }
    
    .modal-faq-answer {
        padding: 0 16px;
    }
    
    .modal-faq-item.active .modal-faq-answer {
        padding: 14px 16px 18px;
    }
}

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translate(-50%, -40%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

/* 卡片布局响应式设计 */
@media (max-width: 768px) {
    .faq-cards-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .faq-card-header {
        padding: 20px;
    }
    
    .faq-card-preview {
        padding: 16px 20px;
    }
    
    .faq-card-footer {
        padding: 16px 20px;
    }
    
    .contact-options {
        flex-direction: column;
        gap: 8px;
    }
    
    .faq-modal-content {
        width: 95%;
        max-height: 90vh;
    }
    
    .faq-modal-header {
        padding: 20px;
    }
    
    .faq-modal-body {
        padding: 24px;
    }
}

.pagination {
    display: inline-block;
    padding-left: 0;
    margin: 20px 0;
    border-radius: 4px; }
.pagination > li {
    display: inline; }
.pagination > li > a,
.pagination > li > span {
    position: relative;
    float: left;
    padding: 6px 12px;
    line-height: 1.42857;
    text-decoration: none;
    color: #337ab7;
    background-color: #fff;
    border: 1px solid #ddd;
    margin-left: -1px; }
.pagination > li:first-child > a,
.pagination > li:first-child > span {
    margin-left: 0;
    border-bottom-left-radius: 4px;
    border-top-left-radius: 4px; }
.pagination > li:last-child > a,
.pagination > li:last-child > span {
    border-bottom-right-radius: 4px;
    border-top-right-radius: 4px; }
.pagination > li > a:hover, .pagination > li > a:focus,
.pagination > li > span:hover,
.pagination > li > span:focus {
    z-index: 2;
    color: #23527c;
    background-color: #eeeeee;
    border-color: #ddd; }
.pagination > .active > a, .pagination > .active > a:hover, .pagination > .active > a:focus,
.pagination > .active > span,
.pagination > .active > span:hover,
.pagination > .active > span:focus {
    z-index: 3;
    color: #fff;
    background-color: #337ab7;
    border-color: #337ab7;
    cursor: default; }