/* 基础重置与全局变量 */
:root {
    --bg-color: #0B0E23;
    --glass-bg: rgba(19, 26, 58, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    --brand-violet: #7C5CFF;
    --brand-cyan: #00D4FF;
    --brand-mint: #00FFC2;
    --brand-gradient: linear-gradient(135deg, var(--brand-violet), var(--brand-cyan), var(--brand-mint));
    --text-main: #EEF0FF;
    --text-muted: #8F99C6;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 10;
}

/* 渐变文本 */
.text-gradient {
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 玻璃拟物化通用类 */
.glass-panel, .glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
}

.glass-card {
    border-radius: 20px;
    padding: 32px;
    transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.glass-card:hover {
    transform: translateY(-8px);
    background: rgba(25, 33, 73, 0.7);
    border-color: rgba(255, 255, 255, 0.15);
}

/* 极光背景动画 */
.aurora-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.5;
    animation: drift 20s infinite alternate ease-in-out;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: var(--brand-violet);
    animation-delay: 0s;
}

.blob-2 {
    bottom: -20%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: var(--brand-cyan);
    animation-delay: -5s;
    animation-duration: 25s;
}

.blob-3 {
    top: 40%;
    left: 40%;
    width: 40vw;
    height: 40vw;
    background: var(--brand-mint);
    animation-delay: -10s;
    opacity: 0.3;
}

@keyframes drift {
    0% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(5vw, -5vh) scale(1.1); }
    66% { transform: translate(-3vw, 4vh) scale(0.9); }
    100% { transform: translate(0, 0) scale(1); }
}

/* 导航栏 */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    border-top: none;
    border-left: none;
    border-right: none;
    border-radius: 0 0 24px 24px;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

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

.nav-menu a {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    opacity: 0.8;
}

.nav-menu a:hover {
    opacity: 1;
    color: var(--brand-cyan);
}

/* 按钮样式 */
.btn-glow {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 999px;
    background: var(--brand-gradient);
    color: var(--bg-color);
    font-weight: 800;
    font-size: 16px;
    border: none;
    cursor: pointer;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.4);
    text-align: center;
    background-size: 150% 150%;
    transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.btn-glow:hover {
    box-shadow: 0 0 30px rgba(0, 255, 194, 0.6);
    background-position: 100% 50%;
    transform: scale(1.05);
}

.btn-glow.large {
    padding: 16px 40px;
    font-size: 18px;
}

.btn-glow.full-width {
    width: 100%;
}

.btn-outline {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 999px;
    background: transparent;
    color: var(--brand-cyan);
    font-weight: 600;
    border: 1px solid var(--brand-cyan);
}

.btn-outline:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: scale(1.05);
}

/* 通用布局 */
section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 50px;
    letter-spacing: -0.02em;
}

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

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

/* Hero Section */
.hero {
    padding: 80px 0 120px;
    text-align: center;
}

.hero-text h1 {
    font-size: 56px;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-text p {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 50px;
}

/* App Mockup Glass Window */
.hero-mockup {
    max-width: 700px;
    margin: 0 auto;
    border-radius: 24px;
    position: relative;
    padding: 0;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.mockup-header {
    background: rgba(0,0,0,0.2);
    padding: 16px 24px;
    display: flex;
    gap: 8px;
    border-bottom: 1px solid var(--glass-border);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #FF5F56; }
.dot.yellow { background: #FFBD2E; }
.dot.green { background: #27C93F; }

.mockup-body {
    padding: 80px 40px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 350px;
}

.connect-toggle {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 2px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 2;
}

.connect-inner {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: var(--brand-gradient);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    font-weight: 800;
    color: var(--bg-color);
    box-shadow: 0 0 40px rgba(124, 92, 255, 0.6);
    transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.connect-toggle:hover .connect-inner {
    transform: scale(1.08);
    box-shadow: 0 0 60px rgba(0, 255, 194, 0.8);
}

.stat-chip {
    position: absolute;
    padding: 12px 20px;
    border-radius: 999px;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 3;
}

.stat-chip .value {
    font-weight: 800;
    font-size: 18px;
    color: var(--brand-cyan);
}

.stat-chip .label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.chip-left { top: 20%; left: 10%; animation: float 4s ease-in-out infinite alternate; }
.chip-right { top: 30%; right: 10%; animation: float 5s ease-in-out infinite alternate-reverse; }
.chip-bottom { bottom: 15%; left: 50%; transform: translateX(-50%); animation: float 3.5s ease-in-out infinite alternate; }

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

/* Features */
.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-muted);
}

/* Stats */
.stats-banner {
    display: flex;
    justify-content: space-around;
    text-align: center;
    padding: 40px;
}

.stat-item h4 {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.stat-num {
    font-size: 40px;
    font-weight: 800;
}

/* Pricing */
.price-card {
    position: relative;
    text-align: center;
}

.price-card.highlight {
    border-color: var(--brand-violet);
    background: rgba(124, 92, 255, 0.1);
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--brand-gradient);
    color: var(--bg-color);
    padding: 4px 16px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
}

.price-card h3 {
    font-size: 20px;
    color: var(--brand-cyan);
    margin-bottom: 15px;
}

.price {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 5px;
}

.price span {
    font-size: 16px;
    color: var(--text-muted);
    font-weight: normal;
}

.price-desc {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 25px;
}

.price-features {
    text-align: left;
    margin-bottom: 30px;
}

.price-features li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    color: var(--text-main);
    display: flex;
    align-items: center;
}

.price-features li::before {
    content: "✓";
    color: var(--brand-mint);
    margin-right: 10px;
    font-weight: bold;
}

/* Resources */
.resource-banner {
    text-align: center;
    background: rgba(0, 212, 255, 0.05);
    border-color: rgba(0, 212, 255, 0.2);
}

.resource-banner h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.resource-banner p {
    color: var(--text-muted);
    margin-bottom: 25px;
}

/* Testimonials */
.testi-card .quote {
    font-size: 16px;
    font-style: italic;
    margin-bottom: 20px;
    color: #E2E8F0;
}

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

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.gradient-bg {
    background: var(--brand-gradient);
}

.author span {
    font-weight: 600;
    color: var(--brand-mint);
}

/* CTA */
.download-cta {
    text-align: center;
    padding-bottom: 120px;
}

.download-cta h2 {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 20px;
}

/* Footer */
footer {
    padding: 40px 0;
    border-bottom: none;
    border-left: none;
    border-right: none;
    border-radius: 24px 24px 0 0;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 20px;
}

.footer-links a {
    color: var(--text-muted);
}

.footer-links a:hover {
    color: var(--brand-mint);
}

.copyright {
    color: rgba(143, 153, 198, 0.5);
    font-size: 14px;
}

/* 响应式 */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        height: auto;
        padding: 20px 0;
        gap: 20px;
    }
    
    .nav-menu ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .hero-text h1 {
        font-size: 38px;
    }
    
    .grid-3, .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .stats-banner {
        flex-direction: column;
        gap: 30px;
    }

    .chip-left, .chip-right {
        display: none; /* 移动端精简界面 */
    }

    .btn-glow, .btn-outline {
        padding: 16px 24px;
        font-size: 16px;
    }
}

/* Guide Cards */
.guide-category {
    color: var(--brand-mint);
    font-size: 12px;
    font-weight: 800;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.guide-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-main);
    line-height: 1.4;
}
.guide-card p {
    color: var(--text-muted);
    margin-bottom: 25px;
    font-size: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.guide-meta {
    display: flex;
    justify-content: space-between;
    color: rgba(143, 153, 198, 0.6);
    font-size: 13px;
    margin-bottom: 25px;
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 15px;
}
.guide-card .btn-outline {
    width: 100%;
    text-align: center;
    padding: 12px;
    display: block;
}

/* Article Layout */
.article-page {
    padding-top: 50px;
}
.article-container {
    max-width: 850px;
    margin: 50px auto 100px;
    padding: 50px;
}
.breadcrumb {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 30px;
}
.breadcrumb a {
    color: var(--brand-cyan);
}
.article-container h1 {
    font-size: 42px;
    margin-bottom: 20px;
    line-height: 1.3;
    letter-spacing: -0.02em;
}
.article-meta {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 40px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 20px;
}
.article-body h2 {
    font-size: 26px;
    margin: 40px 0 20px;
    color: var(--brand-mint);
}
.article-body h3 {
    font-size: 20px;
    margin: 30px 0 15px;
}
.article-body p {
    margin-bottom: 20px;
    font-size: 17px;
    line-height: 1.8;
    color: #C0C8E5;
}
.article-body ul, .article-body ol {
    margin-bottom: 20px;
    padding-left: 25px;
    color: #C0C8E5;
}
.article-body li {
    margin-bottom: 10px;
    font-size: 17px;
    line-height: 1.6;
}
.article-body a {
    color: var(--brand-cyan);
    text-decoration: none;
    border-bottom: 1px solid rgba(0, 212, 255, 0.3);
    transition: all 0.2s;
}
.article-body a:hover {
    border-bottom-color: var(--brand-cyan);
    color: var(--brand-mint);
}
@media (max-width: 768px) {
    .article-container { padding: 30px 20px; margin: 30px auto; }
    .article-container h1 { font-size: 32px; }
}

/* Hero Image Update */
.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}
.hero-text {
    flex: 1;
    text-align: left;
}
.hero-visual {
    flex: 1;
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--glass-border);
}
.hero-image-img {
    width: 100%;
    height: auto;
    display: block;
}
@media (max-width: 992px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    .hero-text {
        text-align: center;
    }
}

/* FAQ */
.faq-section {
    padding: 100px 0;
}
.faq-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    padding: 24px;
    border-radius: 16px;
}
.faq-item h4 {
    font-size: 18px;
    color: var(--brand-cyan);
    margin-bottom: 12px;
}
.faq-item p {
    color: var(--text-muted);
}

/* Floating Button */
.floating-tools {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 1000;
}
.float-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    color: var(--text-main);
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    transition: all 0.3s;
    text-decoration: none;
}
.float-btn:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-5px);
    border-color: var(--brand-cyan);
    color: var(--brand-mint);
}
.float-btn.glow {
    background: var(--brand-gradient);
    border: none;
    color: var(--bg-color);
}
.float-btn.glow:hover {
    color: var(--bg-color);
    box-shadow: 0 0 15px rgba(0, 255, 194, 0.5);
}

/* Article Nav */
.article-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid var(--glass-border);
    gap: 20px;
}
.article-nav a {
    flex: 1;
    padding: 20px;
    border-radius: 12px;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.05);
    transition: all 0.2s;
    display: block;
    text-decoration: none !important;
}
.article-nav a:hover {
    background: rgba(255,255,255,0.05);
    border-color: var(--brand-cyan);
}
.article-nav .prev-nav { text-align: left; }
.article-nav .next-nav { text-align: right; }
.nav-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; margin-bottom: 5px; }
.nav-title { font-size: 16px; font-weight: 600; color: var(--text-main); }
@media (max-width: 600px) {
    .article-nav { flex-direction: column; }
    .article-nav .prev-nav, .article-nav .next-nav { text-align: center; }
}

/* Credibility & Trust Styles (Bing SEO) */
.ssl-badge {
    text-align: center;
    background: rgba(39, 201, 63, 0.1);
    border: 1px solid rgba(39, 201, 63, 0.3);
    color: #27C93F;
    padding: 10px 20px;
    border-radius: 8px;
    display: inline-block;
    margin: 0 auto 40px;
    font-size: 14px;
    font-weight: 600;
    left: 50%;
    position: relative;
    transform: translateX(-50%);
}
.ssl-badge .lock-icon {
    margin-right: 8px;
}

.trust-banner {
    text-align: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(8px);
    padding: 20px;
    border-radius: 12px;
    max-width: 600px;
    margin: 0 auto 40px;
}
.trust-banner .stars {
    font-size: 20px;
    color: #FFBD2E;
    margin-bottom: 5px;
    letter-spacing: 2px;
}
.trust-banner .trust-text {
    font-size: 14px;
    color: var(--text-muted);
}
.trust-banner .trust-text strong {
    color: var(--text-main);
}

.social-signals {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin-bottom: 20px;
}
.social-signals a {
    color: var(--text-muted);
    font-size: 15px;
    transition: color 0.2s;
    text-decoration: none;
    display: flex;
    align-items: center;
}
.social-signals a:hover {
    color: var(--brand-cyan);
}
.enterprise-info {
    font-size: 13px;
    color: rgba(143, 153, 198, 0.4);
    margin-bottom: 15px;
}

/* Affiliate Trust Styles */
.affiliate-disclosure {
    background: rgba(255, 189, 46, 0.1);
    border: 1px solid rgba(255, 189, 46, 0.3);
    color: #FFBD2E;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 13px;
    text-align: left;
    line-height: 1.6;
    margin-top: 30px;
}
.pros-card ul li { margin-bottom: 15px; color: #C0C8E5; display: flex; align-items: flex-start; }
.cons-card ul li { margin-bottom: 15px; color: #C0C8E5; display: flex; align-items: flex-start; }
.pros-card ul li::before { content: "✓"; color: #27C93F; font-weight: bold; margin-right: 10px; font-size: 18px; }
.cons-card ul li::before { content: "✗"; color: #FF5F56; font-weight: bold; margin-right: 10px; font-size: 18px; }