/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #818CF8;
    --secondary-color: #06B6D4;
    --accent-color: #F59E0B;
    --success-color: #10B981;
    --text-dark: #1F2937;
    --text-gray: #6B7280;
    --text-light: #9CA3AF;
    --bg-white: #FFFFFF;
    --bg-light: #F9FAFB;
    --bg-gray: #F3F4F6;
    --border-color: #E5E7EB;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 动态背景 */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.bg-gradient {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(236, 72, 153, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 40% 20%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    background: radial-gradient(ellipse 45% 38% at 18% 24%, rgba(129, 140, 248, 0.14) 0%, transparent 72%),
                radial-gradient(ellipse 42% 48% at 82% 72%, rgba(6, 182, 212, 0.1) 0%, transparent 70%),
                radial-gradient(ellipse 36% 34% at 55% 48%, rgba(236, 72, 153, 0.06) 0%, transparent 72%);
    animation: gradientMove 24s ease-in-out infinite;
    will-change: transform;
}

.bg-gradient::before,
.bg-gradient::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.bg-gradient::before {
    background: linear-gradient(115deg, transparent 18%, rgba(255, 255, 255, 0.42) 46%, transparent 72%);
    transform: translateX(-35%);
    animation: lightSweep 18s ease-in-out infinite;
}

.bg-gradient::after {
    background: radial-gradient(ellipse at center, transparent 42%, rgba(255, 255, 255, 0.2) 100%);
}

@keyframes lightSweep {
    0%, 100% { transform: translateX(-35%); opacity: 0.25; }
    50% { transform: translateX(35%); opacity: 0.65; }
}

@keyframes gradientMove {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(5%, 5%) rotate(5deg);
    }
    66% {
        transform: translate(-5%, 5%) rotate(-5deg);
    }
}

#particleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    text-decoration: none;
}

.brand-icon {
    font-size: 28px;
    animation: planeFloat 3s ease-in-out infinite;
}

@keyframes planeFloat {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-5px) rotate(5deg);
    }
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
    list-style: none;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.btn-register {
    padding: 10px 24px;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.btn-lg {
    padding: 16px 36px;
    font-size: 18px;
}

/* 首屏区域 */
.hero-section {
    padding: 150px 0 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 20px;
    color: var(--text-gray);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 50px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat-item {
    text-align: left;
}

.stat-num {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

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

/* 浮动卡片 */
.hero-image {
    position: relative;
    height: 500px;
}

.floating-card {
    position: absolute;
    background: white;
    padding: 20px 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 15px;
    animation: float 3s ease-in-out infinite;
}

.floating-card.card-1 {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.floating-card.card-2 {
    top: 20%;
    right: 10%;
    animation-delay: 0.5s;
}

.floating-card.card-3 {
    bottom: 30%;
    left: 5%;
    animation-delay: 1s;
}

.floating-card.card-4 {
    bottom: 10%;
    right: 15%;
    animation-delay: 1.5s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(2deg);
    }
}

.card-icon {
    font-size: 32px;
}

.card-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
}

/* 章节标题 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-gray);
}

/* 核心优势区域 */
.features-section {
    padding: 100px 0;
    background: var(--bg-light);
}

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

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: inline-block;
    animation: iconBounce 2s ease-in-out infinite;
}

@keyframes iconBounce {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.feature-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.feature-desc {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* 价格区域 */
.pricing-section {
    padding: 100px 0;
}

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

.pricing-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: scale(1.05);
}

.pricing-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--bg-gray);
    color: var(--text-gray);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

.pricing-badge.popular {
    background: var(--gradient-primary);
    color: white;
}

.pricing-name {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.pricing-price {
    margin-bottom: 10px;
    display: flex;
    align-items: baseline;
    justify-content: center;
}

.price-currency {
    font-size: 24px;
    color: var(--text-dark);
    font-weight: 600;
    margin-right: 5px;
}

.price-amount {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1;
}

.pricing-period {
    font-size: 16px;
    color: var(--text-gray);
    text-align: center;
    margin-bottom: 30px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
    padding: 0;
}

.pricing-features li {
    padding: 12px 0;
    font-size: 15px;
    color: var(--text-gray);
    border-bottom: 1px solid var(--bg-gray);
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features .icon-check {
    font-size: 18px;
    flex-shrink: 0;
}

/* 适合人群区域 */
.audience-section {
    padding: 100px 0;
    background: var(--bg-light);
}

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

.audience-card {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.audience-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.audience-icon {
    font-size: 56px;
    margin-bottom: 20px;
}

.audience-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.audience-card p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* 教程区域 */
.tutorial-section {
    padding: 100px 0;
}

.tutorial-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
}

.tab-btn {
    padding: 12px 28px;
    background: white;
    color: var(--text-gray);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.tab-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tutorial-steps {
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.tutorial-step {
    display: flex;
    gap: 30px;
    align-items: flex-start;
    padding: 30px;
    background: white;
    border-radius: 16px;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
}

.tutorial-step:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: white;
    font-size: 28px;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-content h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.step-content p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 15px;
}

.step-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.step-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* 用户评价区域 */
.reviews-section {
    padding: 100px 0;
    background: var(--bg-light);
}

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

.review-card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.review-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.review-stars {
    font-size: 20px;
    margin-bottom: 15px;
}

.review-text {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 20px;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--bg-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.author-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
}

.author-tag {
    font-size: 14px;
    color: var(--text-gray);
}

/* 文章区域 */
.articles-section {
    padding: 100px 0;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.article-card {
    background: white;
    padding: 0;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: all 0.3s ease;
    text-decoration: none;
    display: block;
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.article-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--gradient-primary);
    color: white;
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin: 20px 0 0 20px;
}

.article-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 15px 20px;
    line-height: 1.4;
}

.article-excerpt {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.7;
    margin: 0 20px 15px;
}

.article-meta {
    display: flex;
    gap: 20px;
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--text-light);
}

.articles-more {
    text-align: center;
}

/* 文章详情页共享样式 */
.article-page { padding: 120px 0 80px; min-height: 100vh; }
.article-header { max-width: 900px; margin: 0 auto 50px; }
.breadcrumb { font-size: 14px; color: var(--text-gray); margin-bottom: 20px; }
.breadcrumb a { color: var(--primary-color); text-decoration: none; }
.article-header h1 { font-size: 42px; font-weight: 700; color: var(--text-dark); line-height: 1.3; margin-bottom: 20px; }
.article-meta-info { display: flex; gap: 30px; font-size: 14px; color: var(--text-gray); }
.article-content { max-width: 900px; margin: 0 auto; background: white; padding: 60px; border-radius: 20px; box-shadow: var(--shadow-md); }
.article-content .lead { font-size: 18px; line-height: 1.8; color: var(--text-gray); margin-bottom: 40px; padding: 20px; background: var(--bg-light); border-left: 4px solid var(--primary-color); border-radius: 8px; }
.article-content h2 { font-size: 32px; color: var(--text-dark); margin: 50px 0 25px; padding-bottom: 15px; border-bottom: 2px solid var(--border-color); }
.article-content h3 { font-size: 24px; color: var(--text-dark); margin: 35px 0 20px; }
.article-content p, .article-content li { font-size: 16px; line-height: 1.8; color: var(--text-gray); }
.article-content p { margin-bottom: 20px; }
.article-content ul, .article-content ol { margin: 20px 0; padding-left: 30px; }
.article-content li { margin-bottom: 12px; }
.article-content strong { color: var(--text-dark); }
.article-cta { margin: 50px 0; padding: 40px; background: var(--gradient-primary); border-radius: 16px; text-align: center; color: white; }
.article-cta h3, .article-cta p { color: white; }
.related-articles { margin-top: 50px; padding-top: 40px; border-top: 2px solid var(--border-color); }
.related-articles ul { list-style: none; padding: 0; }
.related-articles a { color: var(--primary-color); text-decoration: none; }

/* FAQ 区域 */
.faq-section {
    padding: 100px 0;
    background: var(--bg-light);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    margin-bottom: 15px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--primary-color);
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
}

.faq-question h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
}

.faq-icon {
    font-size: 24px;
    color: var(--primary-color);
    font-weight: 300;
    transition: transform 0.3s ease;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 30px 25px;
}

.faq-answer p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
}

/* CTA 区域 */
.cta-section {
    padding: 100px 0;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.8;
    }
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: 48px;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
}

.cta-desc {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

/* 页脚 */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-content,
    .features-grid,
    .pricing-grid,
    .audience-grid,
    .reviews-grid,
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-title {
        font-size: 42px;
    }

    .section-title {
        font-size: 36px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-image {
        display: none;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .features-grid,
    .pricing-grid,
    .audience-grid,
    .reviews-grid,
    .articles-grid {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 36px;
    }

    .section-title {
        font-size: 32px;
    }

    .tutorial-tabs {
        flex-direction: column;
    }

    .tutorial-step {
        flex-direction: column;
        text-align: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .cta-title {
        font-size: 36px;
    }

    .article-content { padding: 30px 20px; }
    .article-header h1 { font-size: 32px; }
    .article-content h2 { font-size: 26px; }
    .article-content h3 { font-size: 20px; }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 减少动画复杂度 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}