/* 
 * FRP内网穿透 - 主样式表
 */

:root {
    --primary: #4ade80;
    --primary-dark: #22c55e;
    --secondary: #10b981;
    --dark: #1e2839;
    --light: #f8fafd;
    --gray: #edf2f7;
    --light-gray: #f5f7fa;
    --border-color: #e2e8f0;
    --card-shadow: 0 10px 20px rgba(74, 222, 128, 0.07);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: var(--light);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(16, 185, 129, 0.05) 0%, transparent 25%), 
        radial-gradient(circle at 85% 30%, rgba(74, 222, 128, 0.05) 0%, transparent 25%);
    background-size: 100% 100%;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航 */
header {
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(15px);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.15),
        0 4px 16px rgba(136, 205, 108, 0.12),
        0 2px 8px rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid rgba(136, 205, 108, 0.2);
    transition: var(--transition);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-icon {
    font-size: 28px;
    color: var(--primary);
    margin-right: 10px;
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: var(--transition);
    padding: 8px 5px;
    position: relative;
}

.nav-links a:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-links a:hover:after,
.nav-links a.active:after {
    width: 100%;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
}

.nav-buttons {
    display: flex;
    align-items: center;
}

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    font-size: 16px;
    outline: none;
}

.btn-primary {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 15px rgba(74, 222, 128, 0.3);
    border-radius: 10px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(74, 222, 128, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--dark);
    border: 2px solid var(--border-color);
    margin-right: 15px;
}

.btn-outline:hover {
    background: white;
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-3px);
}

/* Hero区域 */
.hero {
    padding: 100px 0 60px;
    position: relative;
    overflow: hidden;
}

/* 添加hero-grid网格布局 */
.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 50px;
    text-align: left;
}

.hero-content {
    max-width: 600px;
    animation: fadeInLeft 1s ease-out;
}

.hero-image {
    text-align: right;
    position: relative;
    animation: fadeInRight 1s ease-out;
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes floatAnimation {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

@keyframes pulseAnimation {
    0% {
        box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(74, 222, 128, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(74, 222, 128, 0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: var(--card-shadow);
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.hero-features .feature {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.hero-features .feature-icon {
    width: 40px;
    height: 40px;
    background: rgba(0, 194, 203, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 16px;
    flex-shrink: 0;
}

.hero-features .feature-text h4 {
    margin: 0 0 5px;
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
}

.hero-features .feature-text p {
    margin: 0;
    font-size: 14px;
    color: #718096;
    line-height: 1.5;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.hero p {
    font-size: 1.3rem;
    color: #718096;
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

/* 卡片 */
.card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    margin-bottom: 30px;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.1);
}

/* 特性区块 */
.features {
    padding: 100px 0;
    background-color: white;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 15px;
    font-weight: 700;
    color: var(--dark);
    text-align: center;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #718096;
    max-width: 700px;
    margin: 0 auto 60px;
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    padding: 30px;
    text-align: center;
    background: linear-gradient(135deg, white 0%, rgba(74, 222, 128, 0.02) 100%);
    border: 1px solid rgba(74, 222, 128, 0.1);
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    background: linear-gradient(135deg, rgba(0, 194, 203, 0.1), rgba(108, 99, 255, 0.1));
    color: var(--primary);
    border-radius: 50%;
}

.feature-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
    font-weight: 600;
    color: var(--dark);
}

.feature-text {
    color: #718096;
    line-height: 1.7;
}

/* CTA区域 */
.cta {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(120deg, rgba(0, 194, 203, 0.1), rgba(108, 99, 255, 0.1));
}

.cta h2 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    font-weight: 700;
    color: var(--dark);
}

.cta p {
    font-size: 1.2rem;
    color: #718096;
    max-width: 600px;
    margin: 0 auto 40px;
}

/* 页脚 */
footer {
    background: var(--dark);
    color: white;
    padding: 80px 0 40px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    margin-bottom: 20px;
}

.footer-logo-icon {
    font-size: 24px;
    color: var(--primary);
    margin-right: 10px;
}

.footer-logo-text {
    font-size: 22px;
    font-weight: 700;
    color: white;
}

.footer-about {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: 30px;
}

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

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

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-heading {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 25px;
    position: relative;
}

.footer-heading::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--primary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.copyright {
    text-align: center;
    padding-top: 40px;
    margin-top: 60px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* 应用场景区块 */
.use-cases {
    padding: 100px 0;
    background: linear-gradient(135deg, rgba(0, 194, 203, 0.05) 0%, rgba(108, 99, 255, 0.05) 100%);
}

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

.use-case-card {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    text-align: center;
}

.use-case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.1);
}

.use-case-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    background: linear-gradient(135deg, rgba(0, 194, 203, 0.1), rgba(108, 99, 255, 0.1));
    color: var(--primary);
    border-radius: 50%;
}

.use-case-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--dark);
    font-weight: 600;
}

.use-case-card p {
    color: #718096;
    line-height: 1.6;
    margin: 0;
}

/* 最新博客区块 */
.latest-posts {
    padding: 100px 0;
    background-color: white;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.post-card {
    background: var(--light);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    padding: 30px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.post-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.08);
}

.post-meta {
    font-size: 14px;
    color: #718096;
    margin-bottom: 15px;
}

.post-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    line-height: 1.4;
}

.post-title a {
    color: var(--dark);
    text-decoration: none;
    transition: var(--transition);
}

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

.post-excerpt {
    color: #718096;
    margin-bottom: 20px;
    line-height: 1.6;
}

.read-more {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
}

.read-more i {
    margin-left: 5px;
    transition: var(--transition);
}

.read-more:hover i {
    transform: translateX(5px);
}

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

/* 响应式设计 */
@media (max-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px 20px;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-content {
        max-width: 100%;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 20px;
    }
    
    .nav-links {
        margin-top: 20px;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .nav-links li {
        margin: 5px 10px;
    }
    
    .nav-buttons {
        width: 100%;
        justify-content: center;
        margin-top: 20px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .features-grid,
    .posts-grid,
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
}

/* 通用样式增强 */
.ml-2 {
    margin-left: 0.5rem;
}

.mr-2 {
    margin-right: 0.5rem;
}

.btn-block {
    width: 100%;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 18px;
}

/* Hero 区域增强 */
.hero {
    padding: 100px 0 60px;
    position: relative;
    overflow: hidden;
}

.hero-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: 50%;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(74, 222, 128, 0.05) 0%, rgba(74, 222, 128, 0) 70%);
    top: -100px;
    left: -100px;
    animation: floatAnimation 8s ease-in-out infinite;
}

.shape-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.05) 0%, rgba(16, 185, 129, 0) 70%);
    bottom: -200px;
    right: -100px;
    animation: floatAnimation 12s ease-in-out infinite reverse;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(74, 222, 128, 0.03) 0%, rgba(74, 222, 128, 0) 70%);
    top: 30%;
    left: 30%;
    animation: floatAnimation 15s ease-in-out infinite 1s;
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: #4a5568;
    margin-bottom: 30px;
    max-width: 90%;
}

.hero-card {
    background: linear-gradient(135deg, white 0%, rgba(74, 222, 128, 0.02) 100%);
    border: 1px solid rgba(74, 222, 128, 0.1);
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    padding: 25px;
    position: relative;
    overflow: hidden;
    animation: floatAnimation 6s ease-in-out infinite;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 0;
}

.card-status {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
}

.card-status i {
    margin-right: 5px;
}

.tunnel-config {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
}

.input-group {
    position: relative;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
    color: var(--dark);
}

.input-wrapper {
    position: relative;
}

.input-field {
    width: 100%;
    padding: 14px 20px;
    padding-right: 40px;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
    font-size: 16px;
    transition: var(--transition);
    background: var(--light);
}

.input-field:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.1);
    outline: none;
}

.input-icon {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #a0aec0;
}

.pulse-animation {
    animation: pulseAnimation 2s infinite;
}

/* 连接状态指示器 */
.connection-status {
    display: flex;
    align-items: center;
    margin-top: 20px;
    position: relative;
    height: 10px;
}

.status-line {
    position: absolute;
    height: 2px;
    background: #e2e8f0;
    width: 100%;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #e2e8f0;
    margin-right: calc(25% - 10px);
    position: relative;
    z-index: 2;
}

.status-dot:last-child {
    margin-right: 0;
}

.status-dot.active {
    background: var(--primary);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.2);
}

/* 过程部分增强 */
.process-section {
    padding: 80px 0;
    background-color: white;
    position: relative;
    overflow: hidden;
}

.reveal-animation {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-animation.revealed {
    opacity: 1;
    transform: translateY(0);
}

.process-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-top: 50px;
}

.process-step {
    flex: 0 0 calc(25% - 30px);
    background: linear-gradient(135deg, white 0%, rgba(74, 222, 128, 0.02) 100%);
    border: 1px solid rgba(74, 222, 128, 0.1);
    border-radius: 16px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--card-shadow);
    position: relative;
    transition: var(--transition);
}

.process-step:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 30px rgba(44, 123, 229, 0.1);
}

.step-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.step-icon {
    width: 60px;
    height: 60px;
    background: rgba(74, 222, 128, 0.1);
    border-radius: 12px;
    color: var(--primary);
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.step-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--dark);
}

.step-description {
    color: #718096;
    font-size: 14px;
}

/* 特性部分增强 */
.features-section {
    padding: 80px 0;
    background-color: var(--light);
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 15px;
    text-align: center;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #718096;
    text-align: center;
    margin-bottom: 50px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-header .reveal-animation {
    transition-delay: 0.2s;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.feature-card {
    background: linear-gradient(135deg, white 0%, rgba(74, 222, 128, 0.02) 100%);
    border: 1px solid rgba(74, 222, 128, 0.1);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 30px rgba(44, 123, 229, 0.1);
}

.feature-card-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: rgba(74, 222, 128, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--dark);
}

.feature-card p {
    color: #718096;
    margin-bottom: 20px;
    line-height: 1.7;
}

.feature-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.feature-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.feature-link:hover::after {
    width: 100%;
}

/* 统计部分增强 */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.stat-card {
    background: linear-gradient(135deg, white 0%, rgba(74, 222, 128, 0.02) 100%);
    border: 1px solid rgba(74, 222, 128, 0.1);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(44, 123, 229, 0.1);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(74, 222, 128, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin: 0 auto 15px;
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 5px;
}

.stat-label {
    color: #718096;
    font-size: 14px;
    font-weight: 500;
}

/* 带宽监控部分增强 */
.bandwidth-section {
    padding: 80px 0;
    background: white;
    position: relative;
}

.bandwidth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.bandwidth-content {
    position: relative;
}

.bandwidth-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.gauge-container {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: #f5f7fa;
    position: relative;
    margin-bottom: 30px;
    overflow: hidden;
    box-shadow: inset 0 4px 20px rgba(0, 0, 0, 0.05);
}

.gauge-fill {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 30%;
    background: linear-gradient(0deg, var(--primary) 0%, var(--secondary) 100%);
    transition: height 1s ease-out, background-color 1s ease-out;
}

.gauge-center {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.bandwidth-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--dark);
    line-height: 1;
}

.bandwidth-label {
    font-size: 14px;
    color: #718096;
}

.traffic-cards {
    display: flex;
    gap: 20px;
    width: 100%;
    max-width: 400px;
}

.traffic-card {
    flex: 1;
    background: linear-gradient(135deg, white 0%, rgba(74, 222, 128, 0.02) 100%);
    border: 1px solid rgba(74, 222, 128, 0.1);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    box-shadow: var(--card-shadow);
}

.traffic-card h3 {
    font-size: 14px;
    color: #718096;
    margin-bottom: 10px;
    font-weight: 500;
}

.traffic-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 5px;
}

.traffic-label {
    font-size: 12px;
    color: #a0aec0;
}

.bandwidth-info h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--dark);
}

.bandwidth-info p {
    margin-bottom: 20px;
    color: #718096;
    line-height: 1.7;
}

.check-list {
    list-style: none;
    margin-left: 5px;
}

.check-list li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.check-list li:last-child {
    margin-bottom: 0;
}

.check-list i {
    color: var(--primary);
    margin-right: 10px;
    margin-top: 5px;
}

/* CTA部分增强 */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    position: relative;
    overflow: hidden;
}

.cta {
    background: white;
    border-radius: 20px;
    padding: 60px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 2;
}

.cta-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--dark);
}

.cta-subtitle {
    color: #718096;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* 响应式增强 */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-content {
        text-align: center;
        max-width: 100%;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-features {
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .bandwidth-container {
        grid-template-columns: 1fr;
    }
    
    .process-step {
        flex: 0 0 calc(50% - 30px);
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .process-container {
        justify-content: center;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .cta {
        padding: 40px 20px;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-features {
        grid-template-columns: 1fr;
    }
    
    .process-step {
        flex: 0 0 100%;
    }
    
    .stat-number {
        font-size: 26px;
    }
    
    .cta-title {
        font-size: 1.5rem;
    }
}

/* 美化增强 */
.hero-card {
    background: linear-gradient(135deg, white 0%, rgba(74, 222, 128, 0.02) 100%);
    border: 1px solid rgba(74, 222, 128, 0.1);
}

.feature-card {
    background: linear-gradient(135deg, white 0%, rgba(74, 222, 128, 0.02) 100%);
    border: 1px solid rgba(74, 222, 128, 0.1);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.process-step {
    background: linear-gradient(135deg, white 0%, rgba(74, 222, 128, 0.02) 100%);
    border: 1px solid rgba(74, 222, 128, 0.1);
}

.stat-card {
    background: linear-gradient(135deg, white 0%, rgba(74, 222, 128, 0.02) 100%);
    border: 1px solid rgba(74, 222, 128, 0.1);
}

.traffic-card {
    background: linear-gradient(135deg, white 0%, rgba(74, 222, 128, 0.02) 100%);
    border: 1px solid rgba(74, 222, 128, 0.1);
}

.btn-primary {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 15px rgba(74, 222, 128, 0.3);
    border-radius: 10px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(74, 222, 128, 0.4);
}

.gauge-fill {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 30%;
    background: linear-gradient(0deg, var(--primary) 0%, var(--secondary) 100%);
    transition: height 1s ease-out, background-color 1s ease-out;
}

.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    position: relative;
    overflow: hidden;
}

/* 装饰元素 */
.section::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(74, 222, 128, 0.1) 0%, rgba(74, 222, 128, 0) 70%);
    z-index: -1;
}

.section::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.1) 0%, rgba(16, 185, 129, 0) 70%);
    z-index: -1;
}

.feature-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.feature-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.feature-link:hover::after {
    width: 100%;
}