/* ==========================================================================
   白月光官网 (bygyun.cfd) - 全局样式设计系统
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;700;900&display=swap');

:root {
    --bg-dark: #090916;
    --bg-card: rgba(18, 16, 38, 0.65);
    --bg-card-hover: rgba(28, 25, 58, 0.85);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(0, 242, 254, 0.3);
    
    /* 渐变色系：黑、紫、深蓝、黄、橙 */
    --gradient-moon: radial-gradient(circle at 75% 20%, #ffeaa7 0%, #fdcb6e 15%, rgba(225, 112, 85, 0.8) 30%, rgba(108, 92, 231, 0.4) 60%, rgba(9, 9, 22, 0) 80%);
    --gradient-hero: linear-gradient(180deg, #090916 0%, #120c2a 35%, #0f1638 70%, #090916 100%);
    --gradient-3d-cyan: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #00c6ff 100%);
    --gradient-orange-gold: linear-gradient(135deg, #ff9f1c 0%, #ffbf69 100%);
    
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --primary-cyan: #00f2fe;
    --primary-blue: #4facfe;
    --accent-gold: #ffd166;
    --accent-orange: #ff9f1c;

    --font-family: 'Plus Jakarta Sans', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-glow: 0 0 35px rgba(0, 242, 254, 0.25);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-family);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ==========================================================================
   背景月亮与夜空动画效果 (Instruction 4)
   ========================================================================== */
.moon-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -2;
    background: var(--gradient-hero);
    overflow: hidden;
}

.moon-element {
    position: absolute;
    top: 8%;
    right: 10%;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #fff9e6 0%, #ffeaa7 40%, #fdcb6e 70%, #e17055 95%);
    box-shadow: 0 0 60px rgba(255, 234, 167, 0.6), 0 0 120px rgba(253, 203, 110, 0.4), 0 0 200px rgba(225, 112, 85, 0.3);
    animation: moonGlow 8s ease-in-out infinite alternate;
}

.moon-element::after {
    content: '';
    position: absolute;
    top: -10%;
    left: -10%;
    width: 120%;
    height: 120%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(162, 155, 254, 0.25) 0%, rgba(108, 92, 231, 0.1) 50%, transparent 70%);
    pointer-events: none;
}

@keyframes moonGlow {
    0% { transform: scale(1) translateY(0); filter: brightness(1); }
    100% { transform: scale(1.05) translateY(-10px); filter: brightness(1.15); }
}

.stars-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(1.5px 1.5px at 20px 30px, #ffffff, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 150px 80px, #ffd166, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 280px 120px, #00f2fe, rgba(0,0,0,0)),
        radial-gradient(2.5px 2.5px at 420px 200px, #ffffff, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 700px 350px, #ff9f1c, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 950px 180px, #00f2fe, rgba(0,0,0,0));
    background-repeat: repeat;
    background-size: 1000px 600px;
    opacity: 0.65;
    animation: starPulse 6s ease-in-out infinite alternate;
}

@keyframes starPulse {
    0% { opacity: 0.4; }
    100% { opacity: 0.8; }
}

/* ==========================================================================
   3D 蓝青渐变文字特效 (Instruction 5)
   ========================================================================== */
.text-gradient-3d {
    background: var(--gradient-3d-cyan);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    position: relative;
    filter: drop-shadow(0 4px 12px rgba(0, 242, 254, 0.35));
    text-shadow: 0 10px 20px rgba(0, 242, 254, 0.2);
}

.text-gradient-gold {
    background: linear-gradient(135deg, #ffd166 0%, #ff9f1c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   导航栏 Header
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1.2rem 0;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    background: rgba(9, 9, 22, 0.7);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

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

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.logo-icon-wrap {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(0, 242, 254, 0.2), rgba(255, 159, 28, 0.2));
    border: 1px solid rgba(0, 242, 254, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: 0 0 20px rgba(0, 242, 254, 0.4);
}

.brand-logo-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
}

.logo-text-title {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: #ffffff;
}

.logo-text-title span {
    color: var(--primary-cyan);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

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

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

.btn-primary {
    background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    color: #090916;
    font-weight: 700;
    padding: 0.7rem 1.6rem;
    border-radius: 30px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 20px rgba(0, 242, 254, 0.4);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 242, 254, 0.6);
}

/* ==========================================================================
   Hero 主视觉区 (支持 H1 右侧 3D Logo Icon 展位)
   ========================================================================== */
.hero-section {
    padding: 10rem 0 5rem;
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: center;
}

.hero-content {
    text-align: left;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 1.2rem;
    border-radius: 20px;
    background: rgba(255, 209, 102, 0.1);
    border: 1px solid rgba(255, 209, 102, 0.3);
    color: var(--accent-gold);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.8rem;
}

.hero-title {
    font-size: 3.6rem;
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.18rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 1.2rem;
}

/* H1 右侧 3D 纯矢量 SVG 浮动 Icon 展位 */
.hero-media {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-media-wrap {
    position: relative;
    width: 250px;
    height: 250px;
    border-radius: 40px;
    padding: 15px;
    background: radial-gradient(circle at 35% 35%, rgba(0, 242, 254, 0.15) 0%, rgba(18, 16, 38, 0.8) 100%);
    border: 1px solid rgba(0, 242, 254, 0.4);
    box-shadow: 0 0 50px rgba(0, 242, 254, 0.35), 0 20px 50px rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(20px);
    display: flex;
    justify-content: center;
    align-items: center;
    animation: floatIcon 6s ease-in-out infinite;
}

.pure-icon-box {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.pure-icon-box svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 10px 20px rgba(0, 242, 254, 0.4));
}

@keyframes floatIcon {
    0% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(2deg); }
    100% { transform: translateY(0) rotate(0deg); }
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border-hover);
    color: #ffffff;
    font-weight: 600;
    padding: 0.75rem 1.8rem;
    border-radius: 30px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: rgba(0, 242, 254, 0.15);
    border-color: var(--primary-cyan);
}

/* ==========================================================================
   实时节点与下载流量直排上下展示 (Instruction 2)
   ========================================================================== */
.live-stats-container {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    margin-bottom: 5rem;
}

.stats-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 1rem;
}

.stats-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.2rem;
    font-weight: 700;
}

.live-dot {
    width: 10px;
    height: 10px;
    background-color: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 10px #10b981;
    animation: pulseDot 1.5s infinite;
}

@keyframes pulseDot {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.3); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.8; }
}

.stats-vertical-ticker {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-height: 240px;
    overflow-y: hidden;
    position: relative;
}

.ticker-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.ticker-item:hover {
    border-color: var(--primary-cyan);
    transform: translateX(4px);
}

.node-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

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

.node-name {
    font-weight: 700;
    color: #ffffff;
}

.node-protocol {
    font-size: 0.8rem;
    padding: 0.2rem 0.6rem;
    background: rgba(0, 242, 254, 0.15);
    color: var(--primary-cyan);
    border-radius: 6px;
    font-weight: 600;
}

.node-metrics {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.metric-box {
    text-align: right;
}

.metric-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.metric-value {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--accent-gold);
}

/* ==========================================================================
   套餐价格表 (Pricing Grid & 360° 圆形 3D 旋转木马展台)
   ========================================================================== */
.pricing-section {
    padding: 5rem 0;
    perspective: 1600px;
    overflow: hidden;
}

.pricing-controls-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.btn-3d-toggle {
    background: rgba(0, 242, 254, 0.1);
    border: 1px solid var(--primary-cyan);
    color: var(--primary-cyan);
    padding: 0.65rem 1.4rem;
    border-radius: 25px;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.btn-3d-toggle:hover, .btn-3d-toggle.active {
    background: var(--gradient-3d-cyan);
    color: #090916;
    box-shadow: 0 0 25px rgba(0, 242, 254, 0.5);
    transform: translateY(-2px);
}

/* 360度圆形 3D 舞台容器 (增加上边距，防止遮挡上方控制栏) */
.pricing-360-stage {
    position: relative;
    width: 100%;
    height: 560px;
    margin: 3.5rem auto 1rem;
    perspective: 1600px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 360度 3D 旋转环 (正向倾斜 10deg 避开上方按钮) */
.pricing-360-ring {
    position: absolute;
    width: 310px;
    height: 490px;
    transform-style: preserve-3d;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 自动 360° 旋转 (使用正向倾斜 8deg) */
.pricing-360-ring.auto-rotate {
    animation: rotateRing360 32s linear infinite;
}

.pricing-360-ring.auto-rotate:hover {
    animation-play-state: paused;
}

@keyframes rotateRing360 {
    0% { transform: rotateY(0deg) rotateX(10deg); }
    100% { transform: rotateY(-360deg) rotateX(10deg); }
}

/* 360度圆形环内卡片：隐藏背面文本 (backface-visibility: hidden) 解决文字镜像透出混淆视线问题 */
.pricing-360-ring .pricing-card {
    position: absolute;
    top: 0;
    left: 0;
    width: 310px;
    height: 490px;
    margin: 0;
    backface-visibility: hidden !important;
    -webkit-backface-visibility: hidden !important;
    transform-style: preserve-3d;
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.7), 0 0 25px rgba(0, 242, 254, 0.2);
    transition: filter 0.4s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* 6个卡片在 360度 环上的精准 60° 角度推开 (半径 400px) */
.pricing-360-ring .pricing-card:nth-child(1) { transform: rotateY(0deg) translateZ(400px); }
.pricing-360-ring .pricing-card:nth-child(2) { transform: rotateY(60deg) translateZ(400px); }
.pricing-360-ring .pricing-card:nth-child(3) { transform: rotateY(120deg) translateZ(400px); }
.pricing-360-ring .pricing-card:nth-child(4) { transform: rotateY(180deg) translateZ(400px); }
.pricing-360-ring .pricing-card:nth-child(5) { transform: rotateY(240deg) translateZ(400px); }
.pricing-360-ring .pricing-card:nth-child(6) { transform: rotateY(300deg) translateZ(400px); }

/* 卡片鼠标悬浮强调 */
.pricing-360-ring .pricing-card:hover {
    border-color: var(--primary-cyan);
    box-shadow: 0 0 45px rgba(0, 242, 254, 0.6), 0 20px 50px rgba(0, 0, 0, 0.8);
    filter: brightness(1.15);
}

/* 平铺网格模式回退 */
.pricing-grid-flat {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    position: relative;
    width: 100%;
}

.pricing-grid-flat .pricing-card {
    position: relative !important;
    transform: none !important;
    width: 100% !important;
    height: auto !important;
}

.popular-badge {
    position: absolute;
    top: -14px;
    right: 20px;
    background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    color: #090916;
    font-size: 0.8rem;
    font-weight: 800;
    padding: 0.3rem 1rem;
    border-radius: 12px;
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.plan-price {
    font-size: 2.8rem;
    font-weight: 900;
    color: #ffffff;
    margin-bottom: 1.5rem;
}

.plan-price span {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 400;
}

.plan-features {
    list-style: none;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.plan-features li {
    padding: 0.6rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-muted);
}

.plan-features li svg {
    color: var(--primary-cyan);
    flex-shrink: 0;
}

/* ==========================================================================
   客户评价平排左右自动展示 (Instruction 6)
   ========================================================================== */
.reviews-section {
    padding: 5rem 0;
    overflow: hidden;
}

.reviews-carousel-wrapper {
    position: relative;
    width: 100%;
    overflow: hidden;
    padding: 1rem 0;
}

.reviews-track {
    display: flex;
    gap: 1.5rem;
    width: max-content;
    animation: scrollHorizontal 35s linear infinite;
}

.reviews-track:hover {
    animation-play-state: paused;
}

@keyframes scrollHorizontal {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.review-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 1.8rem;
    width: 360px;
    backdrop-filter: blur(10px);
    flex-shrink: 0;
}

.review-user {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.avatar-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-cyan), var(--accent-gold));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #090916;
}

.user-meta h4 {
    font-size: 1rem;
    color: #ffffff;
}

.user-meta span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.rating-stars {
    color: var(--accent-gold);
    margin-bottom: 0.75rem;
}

.review-comment {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* ==========================================================================
   FAQ 常见问题答疑手风琴
   ========================================================================== */
.faq-section {
    padding: 5rem 0;
}

.faq-accordion {
    max-width: 840px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 0.3s ease;
}

.faq-question {
    padding: 1.5rem;
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary-cyan);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 1.5rem;
    color: var(--text-muted);
    transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.active .faq-answer {
    max-height: 250px;
    padding: 0 1.5rem 1.5rem;
}

/* ==========================================================================
   SEO 文章导览网格
   ========================================================================== */
.articles-preview-section {
    padding: 5rem 0;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.8rem;
}

.article-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 1.8rem;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.article-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-cyan);
}

.article-card-tag {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-gold);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.article-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.article-card-title a {
    color: #ffffff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.article-card-title a:hover {
    color: var(--primary-cyan);
}

.article-card-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.article-card-link {
    color: var(--primary-cyan);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

/* ==========================================================================
   页脚 PBN 权重输血管道 (Footer Backlinks Requirement)
   ========================================================================== */
.site-footer {
    background: rgba(5, 5, 12, 0.95);
    border-top: 1px solid var(--glass-border);
    padding: 3rem 0 2rem;
    margin-top: 5rem;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.2rem;
}

.footer-brand {
    font-size: 1.2rem;
    font-weight: 800;
    color: #ffffff;
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* 核心要求：友情链接区、小字号、低调融合、水平居中、DOFOLLOW 外链 */
.friend-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.friend-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
}

.friend-links a:hover {
    color: var(--primary-cyan);
}

.friend-links .sep {
    opacity: 0.4;
}

/* ==========================================================================
   文章详情页特定样式
   ========================================================================== */
.article-body {
    background-color: #090916;
}

.article-header {
    background: rgba(9, 9, 22, 0.9);
    border-bottom: 1px solid var(--glass-border);
    padding: 1.2rem 0;
}

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

.logo-link {
    text-decoration: none;
    color: #ffffff;
    font-size: 1.3rem;
    font-weight: 800;
}

.logo-sub {
    font-size: 0.85rem;
    color: var(--primary-cyan);
}

.article-nav a {
    color: var(--text-muted);
    text-decoration: none;
    margin-left: 1.5rem;
}

.btn-register-sm {
    background: var(--gradient-3d-cyan);
    color: #090916 !important;
    font-weight: 700;
    padding: 0.4rem 1rem;
    border-radius: 20px;
}

.article-main {
    padding: 4rem 1.5rem;
}

.content-box {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 3rem;
    backdrop-filter: blur(16px);
}

.article-title {
    font-size: 2.2rem;
    font-weight: 900;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.article-meta {
    color: var(--text-muted);
    font-size: 0.85rem;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 1.5rem;
    margin-bottom: 2rem;
}

.article-section {
    margin-bottom: 2.5rem;
}

.article-section h2 {
    font-size: 1.5rem;
    color: var(--primary-cyan);
    margin-bottom: 1rem;
}

.article-section p {
    margin-bottom: 1rem;
    color: #cbd5e1;
    font-size: 1.05rem;
    line-height: 1.8;
}

.article-section ul, .article-section ol {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
    color: #cbd5e1;
}

.article-section li {
    margin-bottom: 0.6rem;
    line-height: 1.7;
}

.internal-links-box {
    background: rgba(0, 242, 254, 0.05);
    border: 1px dashed var(--primary-cyan);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    margin-top: 1.5rem;
}

.internal-links-box a {
    color: var(--primary-cyan);
    text-decoration: none;
    font-weight: 600;
}

.internal-links-box a:hover {
    text-decoration: underline;
}

.cta-banner {
    background: linear-gradient(135deg, rgba(0, 242, 254, 0.15) 0%, rgba(255, 159, 28, 0.15) 100%);
    border: 1px solid var(--primary-cyan);
    border-radius: var(--radius-md);
    padding: 2.5rem;
    text-align: center;
    margin-top: 3rem;
}

.cta-banner h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.cta-banner p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.btn-cta {
    background: var(--gradient-3d-cyan);
    color: #090916;
    font-weight: 800;
    padding: 0.8rem 2rem;
    border-radius: 30px;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 4px 20px rgba(0, 242, 254, 0.4);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

.comparison-table th, .comparison-table td {
    border: 1px solid var(--glass-border);
    padding: 0.8rem 1rem;
    text-align: left;
}

.comparison-table th {
    background: rgba(0, 242, 254, 0.1);
    color: var(--primary-cyan);
}

/* ==========================================================================
   响应式 Mobile 适配
   ========================================================================== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.4rem;
    }
    .nav-links {
        display: none;
    }
    .moon-element {
        width: 180px;
        height: 180px;
        right: 5%;
    }
    .stats-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    .ticker-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.8rem;
    }
    .metric-box {
        text-align: left;
    }
    .content-box {
        padding: 1.5rem;
    }
}