/* 魔戒VPN官方网站 - 全局样式 */
:root {
    --primary: #6c5ce7;
    --primary-dark: #5a4bd1;
    --secondary: #00cec9;
    --accent: #fd79a8;
    --dark: #2d3436;
    --light: #f5f6fa;
    --gray: #636e72;
    --white: #ffffff;
    --border: #dfe6e9;
    --shadow: 0 2px 15px rgba(0,0,0,0.08);
    --radius: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--dark);
    background: var(--light);
    line-height: 1.6;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s;
}

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

/* Header */
.site-header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.logo span {
    color: var(--secondary);
}

.main-nav {
    display: flex;
    gap: 30px;
    list-style: none;
}

.main-nav a {
    color: var(--dark);
    font-weight: 500;
    font-size: 15px;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s;
}

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

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #a29bfe 100%);
    color: var(--white);
    padding: 80px 20px;
    text-align: center;
}

.hero h1 {
    font-size: 42px;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero p {
    font-size: 20px;
    opacity: 0.9;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--light);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    color: var(--primary);
}

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

.btn-accent:hover {
    background: #e8608d;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    color: var(--white);
}

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

.btn-secondary:hover {
    background: #00b5b0;
    transform: translateY(-2px);
    color: var(--white);
}

/* Section */
.section {
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 15px;
    color: var(--dark);
}

.section-desc {
    text-align: center;
    color: var(--gray);
    margin-bottom: 40px;
    font-size: 16px;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

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

.feature-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--dark);
}

.feature-card p {
    color: var(--gray);
    font-size: 14px;
}

/* Products */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

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

.product-card .card-body {
    padding: 30px;
}

.product-card h3 {
    font-size: 22px;
    margin-bottom: 10px;
}

.product-card .price {
    font-size: 28px;
    color: var(--primary);
    font-weight: 700;
    margin: 15px 0;
}

.product-card ul {
    list-style: none;
    margin: 15px 0;
}

.product-card ul li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    color: var(--gray);
    font-size: 14px;
}

.product-card ul li::before {
    content: "✓ ";
    color: var(--secondary);
    font-weight: 700;
}

/* Download */
.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.download-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

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

.download-card .platform-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.download-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.download-card .btn {
    margin-top: 15px;
    padding: 10px 24px;
    font-size: 14px;
}

/* FAQ */
.faq-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.faq-category {
    background: var(--white);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.faq-category h3 {
    font-size: 20px;
    color: var(--primary);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary);
}

.faq-item {
    margin-bottom: 20px;
}

.faq-item h4 {
    font-size: 16px;
    color: var(--dark);
    margin-bottom: 10px;
}

.faq-item .steps {
    list-style: none;
    counter-reset: step;
}

.faq-item .steps li {
    counter-increment: step;
    padding: 8px 0 8px 35px;
    position: relative;
    color: var(--gray);
    font-size: 14px;
    line-height: 1.6;
}

.faq-item .steps li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 8px;
    width: 24px;
    height: 24px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    font-size: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* About */
.about-content {
    background: var(--white);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.about-content h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--primary);
}

.about-content p {
    color: var(--gray);
    margin-bottom: 15px;
    line-height: 1.8;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.contact-card {
    background: var(--light);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
}

.contact-card h4 {
    color: var(--primary);
    margin-bottom: 10px;
}

/* Footer */
.site-footer {
    background: var(--dark);
    color: var(--white);
    padding: 40px 20px 20px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-col h4 {
    font-size: 16px;
    margin-bottom: 15px;
    color: var(--secondary);
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col ul li a {
    color: #b2bec3;
    font-size: 14px;
}

.footer-col ul li a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #636e72;
    color: #b2bec3;
    font-size: 13px;
}

/* Breadcrumb */
.breadcrumb {
    background: var(--white);
    padding: 15px 20px;
    font-size: 14px;
    color: var(--gray);
}

.breadcrumb-inner {
    max-width: 1200px;
    margin: 0 auto;
}

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

.breadcrumb span {
    margin: 0 8px;
    color: var(--gray);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding: 60px 20px;
    text-align: center;
}

.cta-section h2 {
    font-size: 32px;
    margin-bottom: 15px;
}

.cta-section p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 30px;
}

/* Responsive */
@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        height: auto;
        padding: 15px 20px;
    }

    .main-nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .hero h1 {
        font-size: 28px;
    }

    .hero p {
        font-size: 16px;
    }

    .section-title {
        font-size: 24px;
    }

    .faq-categories {
        grid-template-columns: 1fr;
    }
}