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

:root {
    --bg-color: #0B1026;
    --card-bg: #131A33;
    --card-border: rgba(125, 245, 212, 0.16);
    --primary-color: #7DF5D4;
    --primary-hover: #5ee5bf;
    --secondary-color: #9D8CFF;
    --text-primary: #E8ECF8;
    --text-secondary: #8E97B8;
    --divider: rgba(125, 245, 212, 0.14);
    --border-radius: 20px;
}

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

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.75;
    color: var(--text-primary);
    background-color: var(--bg-color);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Sora', 'Noto Serif SC', serif;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
}

h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
}

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.35s ease-out;
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--divider);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Sora', 'Noto Serif SC', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-5px); }
    100% { transform: translateY(0px); }
}

.logo-svg {
    animation: float 6s ease-in-out infinite;
}

nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

nav a {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border-radius: 50px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.35s ease-out;
    border: 1px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 0 15px rgba(125, 245, 212, 0.3);
}

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

.btn-secondary:hover {
    background-color: rgba(125, 245, 212, 0.1);
}

nav .btn {
    padding: 0.5rem 1.25rem;
}

/* Hero Section */
.hero {
    padding: 120px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(125,245,212,0.08) 0%, rgba(11,16,38,0) 70%);
    z-index: 0;
    pointer-events: none;
}

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

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 3rem auto;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

/* Sections & Cards */
section {
    padding: 100px 0;
    border-bottom: 1px solid var(--divider);
}

section:last-child {
    border-bottom: none;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    transition: transform 0.4s ease-out;
}

.card:hover {
    transform: translateY(-5px);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    display: inline-block;
}

/* Highlights */
.highlight-text {
    color: var(--secondary-color);
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    align-items: center;
}

.pricing-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 3rem 2.5rem;
    text-align: center;
    position: relative;
    transition: transform 0.4s ease-out;
}

.pricing-card.popular {
    border-color: var(--primary-color);
}

.badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--secondary-color);
    color: var(--bg-color);
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.price {
    font-family: 'Sora', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 1.5rem 0;
}

.price span {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 2.5rem;
    text-align: left;
}

.pricing-card li {
    margin-bottom: 1rem;
    padding-left: 2rem;
    position: relative;
    color: var(--text-secondary);
}

.pricing-card li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background-color: var(--primary-color);
    border-radius: 50%;
}

.pricing-card .btn {
    width: 100%;
}

/* Testimonials */
.testimonial-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 2.5rem;
}

.testimonial-card p {
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

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

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.faq-item h4 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.faq-item p {
    color: var(--text-secondary);
}

/* Footer */
footer {
    padding: 4rem 0;
    text-align: center;
    border-top: 1px solid var(--divider);
}

.footer-links {
    margin-bottom: 2rem;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
}

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

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

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

/* Supplementary Pages */
.page-content {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 40px;
    margin-top: 60px;
    margin-bottom: 60px;
}

.page-content h1 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 2rem;
}

.page-content h2 {
    text-align: left;
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.page-content p, .page-content ul {
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        height: auto;
        padding: 1rem 0;
        gap: 1rem;
    }
    
    nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero-actions {
        flex-direction: column;
    }
}

/* Article & News Styles */
.news-section { background-color: var(--bg-color); }
.news-card { display: flex; flex-direction: column; justify-content: flex-start; align-items: flex-start; text-align: left; }
.news-card p { font-style: normal !important; text-align: left; margin-bottom: 1rem; color: var(--text-secondary) !important; font-size: 0.95rem; }
.news-badge { position: static; transform: none; display: inline-block; background-color: var(--card-border); color: var(--primary-color); padding: 4px 12px; border-radius: 20px; font-size: 0.8rem; font-weight: bold; }
.article-content { max-width: 800px; margin: 60px auto; padding: 40px; text-align: left; }
.article-content h1 { font-size: 2.2rem; line-height: 1.4; margin-bottom: 1rem; color: var(--text-primary); text-align: left; }
.article-meta { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 2rem; border-bottom: 1px solid var(--divider); padding-bottom: 1rem; }
.breadcrumbs { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 1.5rem; text-align: left; }
.breadcrumbs a { color: var(--primary-color); }
article h2 { text-align: left; font-size: 1.6rem; margin-top: 2.5rem; margin-bottom: 1.2rem; color: var(--primary-color); border-bottom: 1px solid var(--divider); padding-bottom: 0.5rem;}
article h3 { text-align: left; font-size: 1.3rem; margin-top: 1.5rem; margin-bottom: 0.8rem; color: var(--text-primary); }
article p { margin-bottom: 1.2rem; line-height: 1.8; color: var(--text-secondary); font-size: 1.05rem; }
article ul, article ol { margin-bottom: 1.5rem; padding-left: 2rem; color: var(--text-secondary); font-size: 1.05rem; line-height: 1.8; }
article li { margin-bottom: 0.5rem; }
article strong { color: var(--text-primary); }
.article-footer { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--divider); }
.article-footer h3 { margin-bottom: 1rem; text-align: left; }
.article-footer ul { list-style: none; padding-left: 0; }
.article-footer li { margin-bottom: 0.8rem; }
.article-footer a { color: var(--primary-color); text-decoration: underline; text-underline-offset: 4px;}
.article-footer a:hover { color: var(--primary-hover); }

/* Hero Image */
.hero-image-wrapper { margin: 3rem auto 1rem; max-width: 900px; border-radius: 20px; overflow: hidden; border: 1px solid var(--card-border); box-shadow: 0 10px 40px rgba(125,245,212,0.15); }
.hero-image { width: 100%; height: auto; display: block; transition: transform 0.8s ease; }
.hero-image:hover { transform: scale(1.03); }

/* Floating Buttons */
.floating-btn { position: fixed; right: 30px; bottom: 90px; width: 50px; height: 50px; background-color: var(--card-bg); border: 1px solid var(--primary-color); border-radius: 50%; display: flex; justify-content: center; align-items: center; color: var(--primary-color); box-shadow: 0 4px 15px rgba(0,0,0,0.5); z-index: 999; transition: all 0.3s ease; }
.floating-btn:hover { background-color: var(--primary-color); color: var(--bg-color); transform: translateY(-3px); }
.floating-top { bottom: 30px; }
@media (max-width: 768px) { .floating-btn { right: 20px; width: 40px; height: 40px; } .floating-top { bottom: 20px; } .floating-btn:not(.floating-top) { bottom: 70px; } }

/* Article Nav */
.article-nav { display: flex; justify-content: space-between; margin-top: 2rem; padding-top: 2rem; border-top: 1px solid var(--divider); }
.article-nav a { display: flex; flex-direction: column; max-width: 45%; }
.article-nav .nav-label { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 0.5rem; }
.article-nav .nav-title { font-weight: 600; color: var(--primary-color); }
.article-nav a:hover .nav-title { color: var(--primary-hover); text-decoration: underline; }
.nav-next { text-align: right; align-items: flex-end; }