:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;
    --success-color: #10b981;
    --dark-bg: #0f172a;
    --light-bg: #f8fafc;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

body {
    background: var(--light-bg);
    color: #1e293b;
    line-height: 1.6;
    overflow-x: hidden;
}

button {
    border: 0!important;
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 1);
    backdrop-filter: blur(10px);
    padding: 15px 5%;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.navbar.scrolled {
    padding: 10px 5%;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.logo i {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-links .try-btn {
    color: #fff;
}


.nav-links a {
    color: #475569;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}


.btn-primary {
    background: var(--gradient-1);
    color: white;
    padding: 6px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

/* 主横幅 */
.hero {
    padding: 150px 5% 100px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    top: -300px;
    right: -200px;
}

.hero::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    bottom: -200px;
    left: -100px;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero h1 .highlight {
    background: linear-gradient(to right, #f093fb, #f5576c);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.4rem;
    margin-bottom: 40px;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-hero {
    padding: 15px 40px;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-block;
    border: 0;
}

.btn-hero.primary {
    background: #ff5344;
    color: #fff;
}

.btn-hero.primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.btn-hero.secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid white;
}

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

/* 统计数据 */
.stats {
    background: white;
    padding: 60px 5%;
    margin-top: -50px;
    position: relative;
    z-index: 10;
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

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

.stat-item i {
    font-size: 3rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1.1rem;
    color: #64748b;
}

/* 通用section样式 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--dark-bg);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.2rem;
    color: #64748b;
}

/* 主要功能 */
.features {
    padding: 100px 5%;
    background: var(--light-bg);
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 70px;
    height: 70px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 25px;
}

.feature-card:nth-child(1) .feature-icon {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.feature-card:nth-child(2) .feature-icon {
    background: linear-gradient(135deg, #f093fb, #f5576c);
    color: white;
}

.feature-card:nth-child(3) .feature-icon {
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    color: white;
}

.feature-card:nth-child(4) .feature-icon {
    background: linear-gradient(135deg, #43e97b, #38f9d7);
    color: white;
}

.feature-card:nth-child(5) .feature-icon {
    background: linear-gradient(135deg, #fa709a, #fee140);
    color: white;
}

.feature-card:nth-child(6) .feature-icon {
    background: linear-gradient(135deg, #30cfd0, #330867);
    color: white;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-bg);
}

.feature-card p {
    color: #64748b;
    line-height: 1.8;
}

/* 核心优势 */
.advantages {
    padding: 100px 5%;
    background: white;
}

.advantages-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
}

.advantage-item {
    display: flex;
    gap: 25px;
    align-items: flex-start;
}

.advantage-number {
    min-width: 60px;
    height: 60px;
    border-radius: 12px;
    background: var(--gradient-1);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.advantage-content h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: var(--dark-bg);
}

.advantage-content p {
    color: #64748b;
    line-height: 1.8;
}

/* 使用指南 */
.guide {
    padding: 100px 5%;
    background: var(--light-bg);
}

.guide-steps {
    max-width: 1000px;
    margin: 0 auto;
}

.guide-step {
    background: white;
    padding: 40px;
    border-radius: 20px;
    margin-bottom: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    position: relative;
    border-left: 5px solid var(--primary-color);
    transition: all 0.3s;
}

.guide-step:hover {
    transform: translateX(10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.guide-step-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
}

.guide-step-number {
    min-width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-1);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
}

.guide-step h3 {
    font-size: 1.6rem;
    color: var(--dark-bg);
}

.guide-step p {
    color: #64748b;
    line-height: 1.8;
    margin-left: 70px;
}

.guide-step ul {
    margin-left: 70px;
    margin-top: 15px;
    list-style: none;
}

.guide-step ul li {
    color: #64748b;
    padding: 8px 0;
    padding-left: 30px;
    position: relative;
}

.guide-step ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* FAQ区域 */
.faq {
    padding: 100px 5%;
    background: white;
}

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

.faq-item {
    background: var(--light-bg);
    border-radius: 15px;
    margin-bottom: 20px;
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item:hover {
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--dark-bg);
    user-select: none;
}

.faq-question i {
    color: var(--primary-color);
    transition: transform 0.3s;
}

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

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

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

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer-content {
    padding: 0 30px 25px 30px;
    color: #64748b;
    line-height: 1.8;
}

/* CTA区域 */
.cta {
    padding: 100px 5%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.cta p {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.95;
}

/* 页脚 */
footer {
    background: var(--dark-bg);
    color: white;
    padding: 60px 5% 30px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.footer-section p, .footer-section a {
    color: #94a3b8;
    text-decoration: none;
    display: block;
    margin-bottom: 10px;
}

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

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #94a3b8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

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

    .hero p {
        font-size: 1.1rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .guide-step p,
    .guide-step ul {
        margin-left: 0;
    }
}


.nav-container img {
    width: 120px;
}

/* ============================================
   博客列表页
   ============================================ */
.blog-hero {
    padding: 150px 5% 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.blog-hero::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    top: -300px;
    right: -200px;
}

.blog-hero::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    bottom: -200px;
    left: -100px;
}

.blog-hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.blog-hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
}

.blog-hero p {
    font-size: 1.2rem;
    opacity: 0.92;
}

.blog-filter {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    padding: 40px 5% 0;
    max-width: 1400px;
    margin: 0 auto;
}

.filter-btn {
    padding: 8px 22px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    background: white;
    color: #475569;
    border: 2px solid #e2e8f0;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-1);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35);
}

.blog-list-section {
    padding: 60px 5% 100px;
    background: var(--light-bg);
}

.blog-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.blog-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.07);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(99, 102, 241, 0.18);
}

.blog-card-cover {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: var(--gradient-1);
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    min-height: 180px;
    position: relative;
    overflow: hidden;
    padding: 24px;
    isolation: isolate;
}

.blog-card-cover.grad-2 { background: var(--gradient-2); }
.blog-card-cover.grad-3 { background: var(--gradient-3); }

.blog-card-cover::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at top right, rgba(255, 255, 255, 0.2), transparent 42%),
        linear-gradient(180deg, rgba(15, 23, 42, 0.08), rgba(15, 23, 42, 0.36));
    z-index: -1;
}

.cover-content {
    width: 100%;
    height: 100%;
    display: grid;
    color: white;
}

.cover-content img {
    width: 100%;
}

.cover-kicker {
    display: inline-flex;
    width: fit-content;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.22);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.03em;
}

.cover-caption {
    font-size: 0.95rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.88);
    max-width: 28ch;
}

.blog-card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 0.82rem;
    color: #94a3b8;
}

.blog-tag {
    background: linear-gradient(135deg, #667eea22, #764ba222);
    color: var(--primary-color);
    padding: 3px 12px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.78rem;
}

.blog-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.45;
    margin-bottom: 10px;
    color: var(--dark-bg);
    transition: color 0.3s;
}

.blog-card:hover .blog-card-title {
    color: var(--primary-color);
}

.blog-card-excerpt {
    color: #64748b;
    font-size: 0.92rem;
    line-height: 1.75;
    flex: 1;
    margin-bottom: 18px;
}

.blog-read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
    transition: gap 0.2s;
}

.blog-card:hover .blog-read-more {
    gap: 10px;
}

/* ============================================
   博客文章详情页
   ============================================ */
.post-hero {
    padding: 130px 5% 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.post-hero::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    top: -250px;
    right: -150px;
}

.post-hero-inner {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.post-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    margin-bottom: 24px;
    transition: color 0.2s;
}

.post-back:hover { color: white; }

.post-hero-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.8);
    flex-wrap: wrap;
}

.post-hero-tag {
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 3px 14px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.8rem;
}

.post-hero h1 {
    font-size: 2.6rem;
    font-weight: 800;
    line-height: 1.25;
    max-width: 800px;
}

.post-layout {
    max-width: 1400px;
    margin: 0 auto;
    padding: 48px 5% 100px;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 60px;
    align-items: start;
}

.post-content {
    min-width: 0;
}

.post-content h2 {
    font-size: 1.6rem;
    font-weight: 800;
    margin: 40px 0 16px;
    color: var(--dark-bg);
}

.post-content h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 28px 0 12px;
    color: var(--dark-bg);
}

.post-content p {
    color: #475569;
    line-height: 1.9;
    margin-bottom: 18px;
    font-size: 1rem;
}

.post-content ul,
.post-content ol {
    color: #475569;
    line-height: 1.9;
    margin-bottom: 18px;
    padding-left: 24px;
}

.post-content ul { list-style: disc; }
.post-content ol { list-style: decimal; }

.post-content li { margin-bottom: 6px; }

.post-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding: 16px 24px;
    margin: 24px 0;
    background: linear-gradient(135deg, #667eea0d, #764ba20d);
    border-radius: 0 12px 12px 0;
    color: #475569;
    font-style: italic;
    line-height: 1.8;
}

.post-content a {
    color: var(--primary-color);
    text-decoration: none;
}

.post-content a:hover {
    text-decoration: underline;
}

.post-callout {
    margin: 28px 0;
    padding: 22px 24px;
    border-radius: 16px;
    background: linear-gradient(135deg, #eff6ff, #f8fafc);
    border: 1px solid #dbeafe;
}

.post-callout h3 {
    margin-top: 0;
}

.post-callout p:last-child,
.post-callout ul:last-child,
.post-callout ol:last-child {
    margin-bottom: 0;
}

.post-checklist {
    margin: 28px 0;
    padding: 24px;
    border-radius: 16px;
    background: #0f172a;
    color: #e2e8f0;
}

.post-checklist h3 {
    color: white;
    margin-top: 0;
}

.post-checklist ul,
.post-checklist ol,
.post-checklist p {
    color: #cbd5e1;
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    overflow: hidden;
    border-radius: 16px;
    box-shadow: 0 6px 18px rgba(15, 23, 42, 0.08);
}

.post-content th,
.post-content td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
    vertical-align: top;
    color: #475569;
    line-height: 1.7;
}

.post-content th {
    background: #f8fafc;
    font-size: 0.92rem;
    font-weight: 700;
    color: #0f172a;
}

.post-content tr:last-child td {
    border-bottom: none;
}

.media-placeholder {
    margin: 32px 0;
    padding: 28px 24px;
    border-radius: 18px;
    border: 1.5px dashed #cbd5e1;
    background:
        linear-gradient(135deg, rgba(248, 250, 252, 0.94), rgba(239, 246, 255, 0.94));
}
.media-placeholder img {
    width: 100%;
    height: auto;
}

.media-placeholder strong {
    display: block;
    margin-bottom: 8px;
    color: #0f172a;
    font-size: 1rem;
}

.media-placeholder p {
    margin: 0;
}

.media-placeholder p + p {
    margin-top: 10px;
}

.media-placeholder .prompt-label {
    font-weight: 700;
    color: #0f172a;
}

.post-sidebar {
    position: sticky;
    top: 90px;
}

.sidebar-card {
    background: white;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.07);
    margin-bottom: 24px;
}

.sidebar-card-title {
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #94a3b8;
    margin-bottom: 18px;
}

.sidebar-post-item {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid #f1f5f9;
    text-decoration: none;
    color: inherit;
}

.sidebar-post-item:last-child { border-bottom: none; }

.sidebar-post-title {
    font-size: 0.875rem;
    line-height: 1.5;
    color: #475569;
    font-weight: 500;
    transition: color 0.2s;
}

.sidebar-post-meta {
    display: block;
    margin-bottom: 4px;
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #94a3b8;
}

.sidebar-post-item:hover .sidebar-post-title {
    color: var(--primary-color);
}

.sidebar-cta {
    text-align: center;
}

.sidebar-cta p {
    font-size: 0.9rem;
    color: #64748b;
    margin-bottom: 14px;
}

/* ============================================
   博客响应式
   ============================================ */
@media (max-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .post-layout {
        grid-template-columns: 1fr;
    }
    .post-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .blog-hero h1 { font-size: 2rem; }
    .blog-grid { grid-template-columns: 1fr; }
    .post-hero h1 { font-size: 1.8rem; }
    .blog-filter { padding-top: 24px; }
}