/* 基础样式重置和变量 */
:root {
    --primary-color: #dc2626;
    --primary-hover: #b91c1c;
    --secondary-color: #fef2f2;
    --accent-color: #f97316;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --background: #ffffff;
    --background-secondary: #fef2f2;
    --border-color: #fecaca;
    --border-radius: 8px;
    --border-radius-large: 16px;
    --shadow-sm: 0 1px 3px rgba(220, 38, 38, 0.1);
    --shadow-md: 0 4px 12px rgba(220, 38, 38, 0.1);
    --shadow-lg: 0 8px 24px rgba(220, 38, 38, 0.12);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
    touch-action: manipulation;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    overflow-x: hidden;
    touch-action: manipulation;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 18px;
    color: var(--text-primary);
}

.nav-logo a {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s ease;
    cursor: pointer;
}

.nav-logo a:hover {
    opacity: 0.8;
}

.logo-image {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.nav-actions {
    display: flex;
    gap: 12px;
}

/* 按钮样式 */
.btn-primary, .btn-secondary, .btn-outline {
    padding: 8px 16px;
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* 确保链接作为按钮时样式正确 */
a.btn-primary {
    color: white;
}

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

a.btn-outline {
    color: var(--primary-color);
}

a.btn-outline:hover {
    color: white;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--background-secondary);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.btn-primary.large, .btn-outline.large {
    padding: 12px 24px;
    font-size: 16px;
}

.full-width {
    width: 100%;
}

/* 主横幅区域 */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    right: 0;
    height: 8px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    opacity: 0.2;
    border-radius: 4px;
    z-index: -1;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 主视觉区域 */
.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-card {
    position: absolute;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.9) 100%);
    padding: 20px 24px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(220, 38, 38, 0.15), 0 2px 8px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(220, 38, 38, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    animation: float 6s ease-in-out infinite;
    z-index: 3;
}

.floating-card:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 12px 48px rgba(220, 38, 38, 0.25), 0 4px 12px rgba(0, 0, 0, 0.15);
}

.card-1 {
    /* 全球节点，不断新增 - 右上角，远离中心 */
    top: 2%;
    right: -12%;
    animation-delay: 0s;
    z-index: 4;
}

.card-2 {
    /* 多层加密，安全稳定 - 右下角，远离中心 */
    bottom: 2%;
    right: -12%;
    animation-delay: 1.2s;
    z-index: 4;
}

.card-3 {
    /* 专用线路，高速连接 - 左下角，远离中心 */
    bottom: 2%;
    left: -12%;
    animation-delay: 2.4s;
    z-index: 4;
}

.card-4 {
    /* 6年老猫，始于2020 - 左上角，远离中心 */
    top: 2%;
    left: -12%;
    animation-delay: 3.6s;
    z-index: 4;
}

.card-5 {
    /* 操作简单，一键连接 - 顶部居中，抬高避免遮挡 */
    top: -5%;
    left: 50%;
    transform: translateX(-50%);
    animation: floatCenter 6s ease-in-out infinite;
    animation-delay: 4.8s;
    z-index: 4;
}

.card-icon {
    font-size: 32px;
    margin-bottom: 8px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.card-text {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.3px;
}

.main-visual {
    position: relative;
    width: 280px;
    height: 280px;
    z-index: 2;
}

.network-diagram {
    position: relative;
    width: 100%;
    height: 100%;
}

.node {
    position: absolute;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #ffffff 0%, #fef2f2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 8px 24px rgba(220, 38, 38, 0.2), 
                0 4px 12px rgba(220, 38, 38, 0.15),
                inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border: 3px solid var(--primary-color);
    animation: nodeFloat 4s ease-in-out infinite;
    z-index: 3;
    transition: all 0.3s ease;
}

.node::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    opacity: 0.2;
    z-index: -1;
    animation: pulseRing 2s ease-out infinite;
}

.node:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 32px rgba(220, 38, 38, 0.3), 
                0 6px 16px rgba(220, 38, 38, 0.2),
                inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

/* 五角星布局 - 5个基础节点 */
.node-1 {
    /* 香港 - 顶部 */
    top: 8%;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: 0s;
}

.node-2 {
    /* 日本 - 右上（五角星顶点） */
    top: 35%;
    right: 15%;
    transform: translate(50%, -50%);
    animation-delay: 0.8s;
}

.node-3 {
    /* 美国 - 右下（五角星顶点） */
    bottom: 25%;
    right: 22%;
    transform: translate(50%, 50%);
    animation-delay: 1.6s;
}

.node-4 {
    /* 新加坡 - 左下（五角星顶点） */
    bottom: 25%;
    left: 22%;
    transform: translate(-50%, 50%);
    animation-delay: 2.4s;
}

.node-5 {
    /* 台湾 - 左上（五角星顶点） */
    top: 35%;
    left: 15%;
    transform: translate(-50%, -50%);
    animation-delay: 3.2s;
}

.connection-line {
    position: absolute;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(220, 38, 38, 0.6) 20%,
        rgba(249, 115, 22, 0.8) 50%,
        rgba(220, 38, 38, 0.6) 80%,
        transparent 100%);
    height: 2px;
    border-radius: 2px;
    box-shadow: 0 0 12px rgba(220, 38, 38, 0.5),
                0 0 24px rgba(220, 38, 38, 0.3);
    animation: lineFlow 3s ease-in-out infinite;
    z-index: 1;
    opacity: 0.7;
}

.connection-line::after {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    width: 20px;
    height: 4px;
    background: white;
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.8);
    animation: lineFlowPoint 3s ease-in-out infinite;
}

/* 连接所有节点的线条 - 五角星布局 */
.line-1 {
    /* 香港 -> 日本 */
    top: 21.5%;
    left: 50%;
    width: 95px;
    transform: translateX(-25%) rotate(36deg);
    transform-origin: left center;
    animation-delay: 0s;
}

.line-2 {
    /* 日本 -> 美国 */
    top: 50%;
    right: 18.5%;
    width: 100px;
    transform: translateY(-50%) rotate(72deg);
    transform-origin: top left;
    animation-delay: 0.8s;
}

.line-3 {
    /* 美国 -> 新加坡 */
    bottom: 25%;
    left: 50%;
    width: 95px;
    transform: translateX(-50%) rotate(144deg);
    transform-origin: center;
    animation-delay: 1.6s;
}

.line-4 {
    /* 新加坡 -> 台湾 */
    top: 50%;
    left: 18.5%;
    width: 100px;
    transform: translateY(-50%) rotate(-72deg);
    transform-origin: top right;
    animation-delay: 2.4s;
}

.line-5 {
    /* 台湾 -> 香港 */
    top: 21.5%;
    left: 50%;
    width: 95px;
    transform: translateX(-75%) rotate(-36deg);
    transform-origin: right center;
    animation-delay: 3.2s;
}

/* 功能特色区域 */
.features {
    padding: 80px 0;
    background: var(--background);
}

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

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-header p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

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

.feature-card {
    background: white;
    padding: 32px;
    border-radius: var(--border-radius-large);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

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

.feature-icon {
    font-size: 32px;
    margin-bottom: 16px;
    display: block;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

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

/* 套餐价格区域 */
.pricing {
    padding: 80px 0;
    background: var(--background-secondary);
    overflow-x: visible;
    position: relative;
}

/* 套餐类型选择器 */
.pricing-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 48px;
    background: white;
    padding: 8px;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-sm);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 48px;
}

.pricing-slider-wrapper {
    position: relative;
    width: 100%;
    min-height: 540px;
    transition: min-height 0.3s ease;
}

.tab-button {
    flex: 1;
    padding: 12px 24px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-button.active {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-sm);
}

.tab-button:hover:not(.active) {
    background: var(--background-secondary);
    color: var(--text-primary);
}

/* 滑轨容器 */
.pricing-slider-container {
    position: relative;
    overflow: visible;
    border-radius: var(--border-radius-large);
    padding-top: 20px;
    margin-top: 20px;
    min-height: 500px;
    margin-left: -24px;
    margin-right: -24px;
    padding-left: 24px;
    padding-right: 24px;
}

.pricing-slider-container:not(.active) {
    display: none;
}

/* 滑轨控制按钮 */
.slider-controls {
    position: absolute;
    top: 50%;
    left: -24px;
    right: -24px;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    pointer-events: none;
    z-index: 100;
}

.slider-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: white;
    border: 1px solid var(--border-color);
    color: var(--primary-color);
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    pointer-events: all;
    margin: 0;
    position: relative;
    z-index: 101;
}

.slider-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.slider-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* 滑轨 */
.pricing-slider {
    display: flex;
    gap: 24px;
    transition: transform 0.5s ease;
    padding: 0 80px;
    align-items: stretch;
    position: relative;
    overflow: visible;
}

/* 套餐卡片模糊渐变效果 */
.pricing-card {
    transition: opacity 0.5s ease, filter 0.5s ease, transform 0.5s ease;
}

.pricing-card.fade-left,
.pricing-card.fade-right {
    opacity: 0.75 !important;
    filter: blur(2px) !important;
    transform: scale(0.96) !important;
}

.pricing-card.fade-left {
    background: linear-gradient(to right, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.5));
}

.pricing-card.fade-right {
    background: linear-gradient(to left, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.5));
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border-radius: var(--border-radius-large);
    padding: 24px;
    border: 1px solid var(--border-color);
    position: relative;
    transition: all 0.3s ease;
    min-width: 300px;
    max-width: 320px;
    flex-shrink: 0;
    z-index: 1;
}

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

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

.popular-badge {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(220, 38, 38, 0.3);
}

/* 节点系列说明样式 */
.node-series-info {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 40px;
    text-align: left;
}

.node-series-title {
    color: #e91e63;
    margin-bottom: 20px;
    text-align: center;
    font-size: 20px;
    font-weight: 600;
}

.node-series-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 20px;
}

.node-series-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
}

.node-series-basic {
    border-left: 4px solid #e91e63;
}

.node-series-advanced {
    border-left: 4px solid #f97316;
}

.node-series-card h4 {
    color: #333;
    margin-bottom: 10px;
    font-size: 16px;
    font-weight: 600;
}

.node-regions {
    margin-bottom: 8px;
    font-weight: 500;
    line-height: 1.6;
    word-break: keep-all;
    font-size: 14px;
    overflow-wrap: break-word;
}

.node-description {
    font-size: 0.95em;
    color: #555;
    line-height: 1.5;
}

.node-series-note {
    font-size: 0.9em;
    color: #666;
    text-align: center;
    margin: 0;
}

.pricing-header {
    text-align: center;
    margin-bottom: 20px;
}

.pricing-header h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.currency {
    font-size: 18px;
    color: var(--text-secondary);
}

.amount {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
}

.period {
    font-size: 16px;
    color: var(--text-secondary);
}

.pricing-features {
    margin-bottom: 20px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.4;
}

.feature-icon {
    font-size: 14px;
    color: var(--primary-color);
    flex-shrink: 0;
    margin-top: 1px;
}

/* 流媒体支持区域 */
.streaming {
    padding: 80px 0;
    background: var(--background);
    position: relative;
    overflow: hidden;
}


.streaming-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.streaming-text h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.streaming-text p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.streaming-logos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;
}

.logo-item {
    background: var(--background-secondary);
    padding: 14px 18px;
    border-radius: var(--border-radius-large);
    font-weight: 600;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: var(--shadow-sm);
}

.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 14px;
    background: rgba(255, 255, 255, 0.4);
    color: inherit;
}

.logo-item:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-md);
}

.logo-item.netflix {
    background: linear-gradient(145deg, #4a0000, #c00000);
    color: #fff1f1;
    border: none;
}

.logo-item.disney {
    background: linear-gradient(145deg, #0a1b59, #1f7aec);
    color: #e0edff;
    border: none;
}

.logo-item.tvb {
    background: linear-gradient(145deg, #0f9, #00bcd4);
    color: #053b44;
    border: none;
}

.logo-item.spotify {
    background: linear-gradient(145deg, #0e3b20, #1db954);
    color: #eafff1;
    border: none;
}

.logo-item.ai {
    color: #fdfcff;
    border: none;
}

.logo-item.chatgpt {
    background: linear-gradient(145deg, #0f172a, #0ea5e9);
}

.logo-item.gemini {
    background: linear-gradient(145deg, #4f46e5, #14b8a6);
}

.streaming-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: 20px;
}

.tv-mockup {
    width: 320px;
    height: 220px;
    background: #1a1a1a;
    border-radius: 16px;
    padding: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
}

.tv-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0a0a0a 100%);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.tv-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 40%, rgba(229, 9, 20, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(229, 9, 20, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.ai-preview {
    display: flex;
    gap: 16px;
    width: 100%;
    max-width: 320px;
}

.ai-card {
    flex: 1;
    background: linear-gradient(135deg, #0f172a, #1f2937);
    border-radius: 14px;
    padding: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.35);
    color: #f8fafc;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.ai-card-icon {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.ai-card-title {
    font-weight: 600;
    font-size: 15px;
}

.ai-card-desc {
    font-size: 12px;
    opacity: 0.85;
}

.chatgpt-card {
    background: linear-gradient(135deg, #0f172a, #0ea5e9);
}

.gemini-card {
    background: linear-gradient(135deg, #4338ca, #14b8a6);
}

.streaming-content-preview {
    text-align: center;
    position: relative;
    z-index: 1;
    width: 100%;
    padding: 20px;
}

.netflix-logo {
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.netflix-n {
    font-size: 48px;
    font-weight: 900;
    color: #e50914;
    text-shadow: 0 0 20px rgba(229, 9, 20, 0.6), 0 0 40px rgba(229, 9, 20, 0.4);
    font-family: 'Arial Black', sans-serif;
    letter-spacing: -2px;
    animation: netflixGlow 2s ease-in-out infinite;
}

@keyframes netflixGlow {
    0%, 100% {
        text-shadow: 0 0 20px rgba(229, 9, 20, 0.6), 0 0 40px rgba(229, 9, 20, 0.4);
    }
    50% {
        text-shadow: 0 0 30px rgba(229, 9, 20, 0.8), 0 0 60px rgba(229, 9, 20, 0.6);
    }
}

.video-thumbnail {
    width: 120px;
    height: 68px;
    background: linear-gradient(135deg, rgba(229, 9, 20, 0.3) 0%, rgba(180, 7, 16, 0.3) 100%);
    border-radius: 6px;
    margin: 0 auto 16px;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(229, 9, 20, 0.3);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.video-thumbnail::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(45deg, 
            transparent 0px, 
            transparent 10px, 
            rgba(255, 255, 255, 0.05) 10px, 
            rgba(255, 255, 255, 0.05) 20px);
}

.play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.video-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.watching-text {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 400;
    letter-spacing: 0.5px;
}

.platform-name {
    font-size: 18px;
    color: #e50914;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(229, 9, 20, 0.5);
}

.video-progress {
    width: 100%;
    max-width: 200px;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 8px;
}

.progress-bar {
    height: 100%;
    width: 45%;
    background: linear-gradient(90deg, #e50914 0%, #ff1a2e 100%);
    border-radius: 2px;
    animation: progressMove 3s ease-in-out infinite;
    box-shadow: 0 0 8px rgba(229, 9, 20, 0.6);
}

@keyframes progressMove {
    0%, 100% {
        width: 35%;
    }
    50% {
        width: 55%;
    }
}

/* 安全隐私区域 */
.security {
    padding: 100px 0;
    background: linear-gradient(135deg, #fef2f2 0%, #ffffff 50%, #f8fafc 100%);
    position: relative;
    overflow: hidden;
}

.security::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.security-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.security-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    height: 400px;
}

.security-shield-container {
    position: relative;
    width: 240px;
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.shield-glow {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.3) 0%, rgba(37, 99, 235, 0.2) 40%, transparent 70%);
    border-radius: 50%;
    animation: shieldPulse 3s ease-in-out infinite;
    filter: blur(20px);
}

@keyframes shieldPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.shield-main {
    position: relative;
    z-index: 2;
    animation: shieldFloat 4s ease-in-out infinite;
}

@keyframes shieldFloat {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-15px) rotate(2deg);
    }
}

.shield-svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 10px 30px rgba(59, 130, 246, 0.3));
}

.encryption-rings {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    pointer-events: none;
}

.ring {
    position: absolute;
    border: 2px solid rgba(59, 130, 246, 0.3);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: ringRotate 20s linear infinite;
}

.ring-1 {
    width: 280px;
    height: 280px;
    border-color: rgba(59, 130, 246, 0.2);
    animation-duration: 25s;
}

.ring-2 {
    width: 240px;
    height: 240px;
    border-color: rgba(37, 99, 235, 0.25);
    animation-duration: 20s;
    animation-direction: reverse;
}

.ring-3 {
    width: 200px;
    height: 200px;
    border-color: rgba(30, 64, 175, 0.3);
    animation-duration: 15s;
}

@keyframes ringRotate {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.security-text {
    position: relative;
}

.security-badge {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(37, 99, 235, 0.1) 100%);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    color: #2563eb;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.security-text h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
    line-height: 1.2;
    background: linear-gradient(135deg, #1f2937 0%, #374151 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.security-text p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

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

.security-feature-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
    background: white;
    border-radius: 16px;
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.security-feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.3);
}

.feature-icon-wrapper {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(37, 99, 235, 0.1) 100%);
    border-radius: 12px;
    flex-shrink: 0;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.feature-icon-svg {
    width: 28px;
    height: 28px;
    color: #2563eb;
    stroke-width: 2;
}

.feature-content {
    flex: 1;
}

.feature-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.feature-content p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

/* 关于我们区域 */
.about {
    padding: 100px 0;
    background: linear-gradient(135deg, #ffffff 0%, #fef2f2 50%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(220, 38, 38, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.about::after {
    content: '';
    position: absolute;
    bottom: -30%;
    right: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

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

.about-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.about-card {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius-large);
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

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

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

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(220, 38, 38, 0.15), 0 4px 16px rgba(0, 0, 0, 0.1);
    border-color: rgba(220, 38, 38, 0.3);
}

.about-card-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.1) 0%, rgba(249, 115, 22, 0.1) 100%);
    border-radius: 16px;
    margin-bottom: 24px;
    border: 1px solid rgba(220, 38, 38, 0.2);
    transition: all 0.3s ease;
}

.about-card-icon svg {
    width: 32px;
    height: 32px;
    color: var(--primary-color);
    stroke-width: 2;
}

.about-card:hover .about-card-icon {
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.15) 0%, rgba(249, 115, 22, 0.15) 100%);
    transform: scale(1.1) rotate(5deg);
    border-color: rgba(220, 38, 38, 0.4);
}

.about-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
    line-height: 1.3;
}

.about-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 16px;
    margin: 0;
}

.about-card strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* 技术支持区域 */
.support {
    padding: 100px 0;
    background: linear-gradient(135deg, #fef2f2 0%, #ffffff 50%, #f8fafc 100%);
    position: relative;
    overflow: hidden;
}

.support::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(220, 38, 38, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.support::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -5%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    position: relative;
    z-index: 1;
}

.support-card {
    background: white;
    padding: 40px 32px;
    border-radius: var(--border-radius-large);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* 卡片样式1 - 左侧卡片，蓝色主题 */
.support-card.card-style-1 {
    background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
    border: 2px solid rgba(59, 130, 246, 0.2);
}

.support-card.card-style-1::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6 0%, #60a5fa 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.support-card.card-style-1:hover {
    transform: translateY(-8px) rotate(-1deg);
    box-shadow: 0 12px 40px rgba(59, 130, 246, 0.2), 0 4px 16px rgba(0, 0, 0, 0.1);
    border-color: rgba(59, 130, 246, 0.4);
}

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

.support-card.card-style-1 .support-icon-wrapper {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(96, 165, 250, 0.1) 100%);
    border-color: rgba(59, 130, 246, 0.3);
}

.support-card.card-style-1 .support-icon-svg {
    color: #3b82f6;
}

/* 卡片样式2 - 中间卡片，红色主题，推荐 */
.support-card.card-style-2 {
    background: linear-gradient(135deg, rgba(255, 255, 255, 1) 0%, rgba(254, 242, 242, 0.8) 100%);
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
}

.support-card.card-style-2::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 100%);
    transform: scaleX(1);
}

.support-card.card-style-2::after {
    content: '推荐';
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--primary-color);
    color: white;
    padding: 6px 14px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.4);
    letter-spacing: 0.5px;
}

.support-card.card-style-2:hover {
    transform: scale(1.08) translateY(-8px);
    box-shadow: 0 16px 48px rgba(220, 38, 38, 0.25), 0 6px 20px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-hover);
}

.support-card.card-style-2 .support-icon-wrapper {
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.2) 0%, rgba(249, 115, 22, 0.15) 100%);
    border-color: rgba(220, 38, 38, 0.4);
    box-shadow: 0 4px 16px rgba(220, 38, 38, 0.2);
}

.support-card.card-style-2 .support-icon-svg {
    color: var(--primary-color);
}

/* 卡片样式3 - 右侧卡片，绿色主题 */
.support-card.card-style-3 {
    background: linear-gradient(135deg, #ffffff 0%, #f0fdf4 100%);
    border: 2px solid rgba(34, 197, 94, 0.2);
}

.support-card.card-style-3::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #22c55e 0%, #4ade80 100%);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
}

.support-card.card-style-3:hover {
    transform: translateY(-8px) rotate(1deg);
    box-shadow: 0 12px 40px rgba(34, 197, 94, 0.2), 0 4px 16px rgba(0, 0, 0, 0.1);
    border-color: rgba(34, 197, 94, 0.4);
}

.support-card.card-style-3:hover::before {
    transform: scaleX(1);
}

.support-card.card-style-3 .support-icon-wrapper {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.15) 0%, rgba(74, 222, 128, 0.1) 100%);
    border-color: rgba(34, 197, 94, 0.3);
}

.support-card.card-style-3 .support-icon-svg {
    color: #22c55e;
}

.support-icon-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.1) 0%, rgba(249, 115, 22, 0.1) 100%);
    border-radius: 20px;
    border: 1px solid rgba(220, 38, 38, 0.2);
    transition: all 0.4s ease;
    position: relative;
}

.support-card.featured .support-icon-wrapper {
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.15) 0%, rgba(249, 115, 22, 0.15) 100%);
    border-color: rgba(220, 38, 38, 0.3);
}

.support-icon-wrapper::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
}

.support-card:hover .support-icon-wrapper {
    transform: scale(1.1) rotate(5deg);
    border-color: rgba(220, 38, 38, 0.4);
}

.support-card:hover .support-icon-wrapper::before {
    opacity: 0.1;
}

.support-icon-svg {
    width: 40px;
    height: 40px;
    color: var(--primary-color);
    stroke-width: 2;
    transition: all 0.3s ease;
}

.support-card:hover .support-icon-svg {
    transform: scale(1.1);
}

.support-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
    line-height: 1.3;
}

.support-card p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
    font-size: 15px;
    flex-grow: 1;
}

.support-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    margin-top: auto;
    padding: 8px 16px;
    border-radius: 8px;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.support-link:hover {
    color: var(--primary-hover);
    background: rgba(220, 38, 38, 0.05);
    transform: translateX(4px);
}

.link-arrow {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
}

.support-link:hover .link-arrow {
    transform: translateX(4px);
}

/* 页脚 */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 64px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 64px;
    margin-bottom: 32px;
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 18px;
    margin-bottom: 16px;
}

.footer-logo a {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s ease;
    cursor: pointer;
}

.footer-logo a:hover {
    opacity: 0.8;
}

.footer-brand p {
    color: #9ca3af;
    line-height: 1.6;
    margin-bottom: 16px;
}

.company-info {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #374151;
}

.company-info p {
    color: #9ca3af;
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 8px;
}

.company-info strong {
    color: #d1d5db;
}

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

.footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: white;
}

.footer-column a {
    display: block;
    color: #9ca3af;
    text-decoration: none;
    margin-bottom: 8px;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 32px;
    text-align: center;
    color: #9ca3af;
}

/* 动画效果 */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes floatCenter {
    0%, 100% {
        transform: translate(-50%, 0);
    }
    50% {
        transform: translate(-50%, -10px);
    }
}

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

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

@keyframes globeRotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}



/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 24px;
    }
    
    .hero-visual {
        height: auto;
        margin-top: 40px;
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }
    
    .main-visual {
        width: 220px;
        height: 220px;
        order: 1;
    }
    
    .node {
        width: 52px;
        height: 52px;
        font-size: 24px;
    }
    
    .connection-line {
        width: 80px;
    }
    
    .floating-card {
        position: relative;
        padding: 16px 20px;
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
        order: 2;
        top: auto;
        bottom: auto;
        left: auto;
        right: auto;
        transform: none !important;
        animation: none;
    }
    
    /* 移动端隐藏滑轨按钮，使用触摸滑动 */
    .slider-controls {
        display: none;
    }
    
    .pricing-slider {
        padding: 0 16px;
        touch-action: pan-y pinch-zoom;
        -webkit-overflow-scrolling: touch;
    }
    
    /* 节点系列说明移动端优化 */
    .node-series-info {
        padding: 20px;
        margin-bottom: 30px;
    }
    
    .node-series-title {
        font-size: 18px;
        margin-bottom: 16px;
    }
    
    .node-series-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 16px;
    }
    
    .node-series-card {
        padding: 16px;
    }
    
    .node-series-card h4 {
        font-size: 15px;
        margin-bottom: 8px;
    }
    
    .node-regions {
        font-size: 13px;
        line-height: 1.6;
        word-break: break-all; /* Force break if needed, especially for mixed content */
        overflow-wrap: break-word;
        white-space: normal;
    }
    
    .node-description {
        font-size: 13px;
        line-height: 1.6;
    }
    
    .node-series-note {
        font-size: 12px;
        padding: 0 10px;
    }
    
    .card-icon {
        font-size: 28px;
    }
    
    .card-text {
        font-size: 13px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-slider-container {
        margin-left: -16px;
        margin-right: -16px;
        padding-left: 0;
        padding-right: 0;
        overflow: hidden; /* Ensure no horizontal scroll on body */
        padding-top: 10px; /* Add space for badges at container level */
    }
    
    .pricing-slider {
        padding: 40px 16px 20px 16px; /* Increase top padding for popular badge */
        gap: 16px;
        overflow-x: auto;
        overflow-y: hidden;
        scroll-snap-type: x mandatory;
        scroll-behavior: smooth;
        transform: none !important; /* Override JS transform */
        -webkit-overflow-scrolling: touch;
        /* Hide scrollbar */
        scrollbar-width: none;
        -ms-overflow-style: none;
        justify-content: flex-start; /* Align items to start */
        touch-action: pan-x; /* Prioritize horizontal scroll */
    }
    
    .pricing-slider::-webkit-scrollbar {
        display: none;
    }
    
    .pricing-card {
        min-width: 85vw; /* Make card take most of width */
        max-width: 85vw;
        padding: 24px;
        scroll-snap-align: center;
        margin: 0; /* Remove auto margins if any */
    }

    /* Hide JS controls on mobile */
    .slider-controls {
        display: none !important;
    }
    
    .streaming-content,
    .security-content,
    .about-cards-grid {
        grid-template-columns: 1fr;
        gap: 32px;
        max-width: 100%;
    }
    
    .about-card {
        padding: 32px;
    }
    
    .about-card-icon {
        width: 56px;
        height: 56px;
        margin-bottom: 20px;
    }
    
    .about-card-icon svg {
        width: 28px;
        height: 28px;
    }
    
    .about-card h3 {
        font-size: 20px;
    }
    
    .about-card p {
        font-size: 15px;
    }
    
    .streaming-logos {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-links {
        grid-template-columns: repeat(3, 1fr); /* Change to 3 columns for compact layout */
        gap: 12px;
        text-align: left;
    }
    
    .footer-column h4 {
        font-size: 15px;
        margin-bottom: 12px;
    }
    
    .footer-column a {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .features,
    .pricing,
    .streaming,
    .security,
    .about,
    .support {
        padding: 80px 0;
    }
    
    .support-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    /* 节点系列说明小屏幕优化 */
    .node-series-info {
        padding: 16px;
        margin-bottom: 24px;
    }
    
    .node-series-title {
        font-size: 16px;
        margin-bottom: 12px;
    }
    
    .node-series-grid {
        gap: 16px;
        margin-bottom: 12px;
    }
    
    .node-series-card {
        padding: 14px;
    }
    
    .node-series-card h4 {
        font-size: 14px;
        margin-bottom: 6px;
    }
    
    .node-regions {
        font-size: 12px;
        line-height: 1.6;
        word-break: break-all;
        overflow-wrap: break-word;
        white-space: normal;
    }
    
    .node-description {
        font-size: 12px;
        line-height: 1.5;
    }
    
    .node-series-note {
        font-size: 11px;
        padding: 0 8px;
    }
    
    .support-card {
        padding: 32px 24px;
    }
    
    .support-icon-wrapper {
        width: 64px;
        height: 64px;
        margin-bottom: 20px;
    }
    
    .support-icon-svg {
        width: 32px;
        height: 32px;
    }
    
    .support-card h3 {
        font-size: 20px;
    }
    
    .support-card p {
        font-size: 14px;
    }
}

/* 浮动动画 */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.node-1 {
    animation-name: nodeFloat1;
}

.node-2 {
    animation-name: nodeFloat2;
}

.node-3 {
    animation-name: nodeFloat3;
}

.node-4 {
    animation-name: nodeFloat4;
}

.node-5 {
    animation-name: nodeFloat5;
}

@keyframes nodeFloat1 {
    0%, 100% {
        transform: translateX(-50%) translateY(0px) scale(1);
    }
    50% {
        transform: translateX(-50%) translateY(-12px) scale(1.08);
    }
}

@keyframes nodeFloat2 {
    0%, 100% {
        transform: translate(50%, -50%) translateY(0px) scale(1);
    }
    50% {
        transform: translate(50%, -50%) translateY(-12px) scale(1.08);
    }
}

@keyframes nodeFloat3 {
    0%, 100% {
        transform: translate(50%, 50%) translateY(0px) scale(1);
    }
    50% {
        transform: translate(50%, 50%) translateY(-12px) scale(1.08);
    }
}

@keyframes nodeFloat4 {
    0%, 100% {
        transform: translate(-50%, 50%) translateY(0px) scale(1);
    }
    50% {
        transform: translate(-50%, 50%) translateY(-12px) scale(1.08);
    }
}

@keyframes nodeFloat5 {
    0%, 100% {
        transform: translate(-50%, -50%) translateY(0px) scale(1);
    }
    50% {
        transform: translate(-50%, -50%) translateY(-12px) scale(1.08);
    }
}


@keyframes lineFlow {
    0% {
        opacity: 0.4;
    }
    50% {
        opacity: 0.9;
    }
    100% {
        opacity: 0.4;
    }
}

@keyframes lineFlowPoint {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(100vw - 100px));
    }
}

@keyframes pulseRing {
    0% {
        opacity: 0.2;
        transform: scale(1);
    }
    50% {
        opacity: 0.4;
        transform: scale(1.15);
    }
    100% {
        opacity: 0.2;
        transform: scale(1);
    }
}