/* ===== 糖心Vlog 主样式文件 ===== */
:root {
  --primary: #e91e8c;
  --primary-dark: #c2185b;
  --primary-light: #f48fb1;
  --secondary: #7c3aed;
  --accent: #ff6b35;
  --bg: #ffffff;
  --bg-gray: #f8f9fa;
  --bg-dark: #1a1a2e;
  --text: #1a1a2e;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 32px rgba(233,30,140,0.15);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s ease;
  --font: 'PingFang SC', 'Microsoft YaHei', '微软雅黑', sans-serif;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
ul { list-style: none; }
h1,h2,h3,h4,h5,h6 { line-height: 1.3; font-weight: 700; color: var(--text); }

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

/* ===== Header ===== */
.site-header { background: #fff; box-shadow: 0 2px 12px rgba(0,0,0,0.08); position: sticky; top: 0; z-index: 1000; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--text); font-size: 1.25rem; font-weight: 800; }
.logo img { border-radius: 8px; }
.logo-text em { color: var(--primary); font-style: normal; }
.main-nav ul { display: flex; gap: 4px; }
.main-nav a { padding: 6px 12px; border-radius: 8px; color: var(--text-muted); font-size: 0.9rem; font-weight: 500; transition: var(--transition); }
.main-nav a:hover, .main-nav a.active { background: var(--primary); color: #fff; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--transition); }

/* ===== Search Bar ===== */
.search-bar-wrap { background: linear-gradient(135deg, #fce4ec 0%, #f3e5f5 100%); padding: 12px 0; border-bottom: 1px solid var(--border); }
.search-bar { display: flex; align-items: center; gap: 0; max-width: 680px; margin: 0 auto; position: relative; background: #fff; border-radius: 50px; box-shadow: 0 2px 12px rgba(233,30,140,0.12); overflow: visible; border: 2px solid var(--primary-light); }
#search-input { flex: 1; padding: 10px 20px; border: none; outline: none; font-size: 0.95rem; background: transparent; font-family: var(--font); color: var(--text); }
#search-btn { padding: 10px 24px; background: var(--primary); color: #fff; border: none; cursor: pointer; font-size: 0.9rem; font-weight: 600; display: flex; align-items: center; gap: 6px; border-radius: 0 50px 50px 0; transition: var(--transition); font-family: var(--font); }
#search-btn:hover { background: var(--primary-dark); }
.search-dropdown { position: absolute; top: calc(100% + 8px); left: 0; right: 0; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); display: none; z-index: 999; overflow: hidden; }
.search-dropdown.show { display: block; }
.search-suggest-item { padding: 10px 20px; cursor: pointer; font-size: 0.9rem; color: var(--text-muted); display: flex; align-items: center; gap: 8px; transition: var(--transition); }
.search-suggest-item:hover { background: var(--bg-gray); color: var(--primary); }
.search-suggest-item::before { content: '🔍'; font-size: 0.8rem; }

/* ===== Hero / Banner ===== */
.hero { position: relative; min-height: 520px; display: flex; align-items: center; overflow: hidden; background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%); }
.hero-bg { position: absolute; inset: 0; background-image: url('/assets/images/banner.jpg'); background-size: cover; background-position: center; opacity: 0.25; }
.hero-content { position: relative; z-index: 2; max-width: 640px; color: #fff; }
.hero-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(233,30,140,0.2); border: 1px solid rgba(233,30,140,0.4); color: var(--primary-light); padding: 6px 16px; border-radius: 50px; font-size: 0.85rem; margin-bottom: 20px; }
.hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); line-height: 1.2; margin-bottom: 16px; }
.hero h1 em { color: var(--primary); font-style: normal; }
.hero p { font-size: 1.05rem; color: rgba(255,255,255,0.8); margin-bottom: 28px; line-height: 1.8; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: 50px; font-size: 0.95rem; font-weight: 600; cursor: pointer; transition: var(--transition); border: 2px solid transparent; font-family: var(--font); text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(233,30,140,0.35); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,0.5); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; color: #fff; }
.hero-stats { display: flex; gap: 32px; margin-top: 32px; }
.hero-stat { text-align: center; }
.hero-stat strong { display: block; font-size: 1.5rem; color: var(--primary-light); }
.hero-stat span { font-size: 0.8rem; color: rgba(255,255,255,0.6); }

/* ===== Section ===== */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-gray); }
.section-header { text-align: center; margin-bottom: 48px; }
.section-tag { display: inline-block; background: rgba(233,30,140,0.08); color: var(--primary); padding: 4px 14px; border-radius: 50px; font-size: 0.82rem; font-weight: 600; margin-bottom: 12px; }
.section-header h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 12px; }
.section-header p { color: var(--text-muted); max-width: 560px; margin: 0 auto; font-size: 1rem; }

/* ===== Video Cards ===== */
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.video-card { background: #fff; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); cursor: pointer; }
.video-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.video-thumb { position: relative; aspect-ratio: 16/9; overflow: hidden; background: #000; }
.video-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.video-card:hover .video-thumb img { transform: scale(1.05); }
.video-play-btn { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,0); transition: var(--transition); }
.video-card:hover .video-play-btn { background: rgba(0,0,0,0.45); }
.play-icon { width: 56px; height: 56px; background: rgba(255,255,255,0.92); border-radius: 50%; display: flex; align-items: center; justify-content: center; opacity: 0; transform: scale(0.8); transition: var(--transition); box-shadow: 0 4px 16px rgba(0,0,0,0.3); }
.video-card:hover .play-icon { opacity: 1; transform: scale(1); }
.play-icon svg { width: 22px; height: 22px; fill: var(--primary); margin-left: 3px; }
.video-duration { position: absolute; bottom: 8px; right: 8px; background: rgba(0,0,0,0.75); color: #fff; padding: 2px 8px; border-radius: 4px; font-size: 0.78rem; font-weight: 600; }
.video-category { position: absolute; top: 8px; left: 8px; background: var(--primary); color: #fff; padding: 3px 10px; border-radius: 50px; font-size: 0.75rem; font-weight: 600; }
.video-info { padding: 16px; }
.video-title { font-size: 0.95rem; font-weight: 600; color: var(--text); margin-bottom: 8px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.video-meta { display: flex; align-items: center; gap: 12px; color: var(--text-muted); font-size: 0.82rem; }
.video-author { font-weight: 500; color: var(--primary); }
.video-stats { display: flex; gap: 10px; margin-top: 8px; font-size: 0.8rem; color: var(--text-muted); }
.video-stats span { display: flex; align-items: center; gap: 3px; }

/* ===== Features Grid ===== */
.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }
.feature-card { background: #fff; border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow); transition: var(--transition); border: 1px solid var(--border); }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--primary-light); }
.feature-icon { font-size: 2.5rem; margin-bottom: 16px; }
.feature-tag { display: inline-block; background: rgba(233,30,140,0.08); color: var(--primary); padding: 2px 10px; border-radius: 50px; font-size: 0.78rem; font-weight: 600; margin-bottom: 10px; }
.feature-card h3 { font-size: 1.05rem; margin-bottom: 10px; }
.feature-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }

/* ===== Scenarios ===== */
.scenarios-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; }
.scenario-card { background: #fff; border-radius: var(--radius); padding: 24px 20px; text-align: center; box-shadow: var(--shadow); transition: var(--transition); border: 2px solid transparent; }
.scenario-card:hover { border-color: var(--primary); transform: translateY(-4px); }
.scenario-icon { font-size: 2.8rem; margin-bottom: 12px; }
.scenario-card h3 { font-size: 1rem; margin-bottom: 8px; }
.scenario-card p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* ===== Tutorial Steps ===== */
.tutorial-steps { display: grid; gap: 40px; }
.tutorial-step { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.tutorial-step:nth-child(even) { direction: rtl; }
.tutorial-step:nth-child(even) > * { direction: ltr; }
.step-img { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); }
.step-img img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.step-content { }
.step-num { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; background: var(--primary); color: #fff; border-radius: 50%; font-size: 1.1rem; font-weight: 800; margin-bottom: 16px; }
.step-content h3 { font-size: 1.2rem; margin-bottom: 12px; }
.step-content p { color: var(--text-muted); line-height: 1.8; }

/* ===== Changelog ===== */
.changelog-list { max-width: 800px; margin: 0 auto; }
.changelog-item { display: grid; grid-template-columns: 140px 1fr; gap: 24px; padding: 28px 0; border-bottom: 1px solid var(--border); }
.changelog-item:last-child { border-bottom: none; }
.changelog-meta { text-align: right; }
.changelog-version { font-size: 1rem; font-weight: 700; color: var(--primary); }
.changelog-date { font-size: 0.82rem; color: var(--text-muted); margin-top: 4px; }
.changelog-badge { display: inline-block; padding: 2px 10px; border-radius: 50px; font-size: 0.75rem; font-weight: 600; margin-top: 6px; }
.badge-major { background: rgba(233,30,140,0.1); color: var(--primary); }
.badge-minor { background: rgba(124,58,237,0.1); color: var(--secondary); }
.changelog-content h3 { font-size: 1rem; margin-bottom: 12px; }
.changelog-content ul { padding-left: 0; }
.changelog-content li { padding: 4px 0 4px 20px; position: relative; font-size: 0.9rem; color: var(--text-muted); }
.changelog-content li::before { content: '✓'; position: absolute; left: 0; color: var(--primary); font-weight: 700; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; transition: var(--transition); }
.faq-item.open { border-color: var(--primary-light); box-shadow: 0 4px 16px rgba(233,30,140,0.08); }
.faq-q { padding: 18px 24px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: 600; font-size: 0.95rem; background: #fff; transition: var(--transition); user-select: none; }
.faq-item.open .faq-q { color: var(--primary); background: rgba(233,30,140,0.03); }
.faq-arrow { width: 20px; height: 20px; flex-shrink: 0; transition: transform 0.3s ease; color: var(--text-muted); }
.faq-item.open .faq-arrow { transform: rotate(180deg); color: var(--primary); }
.faq-a { padding: 0 24px; max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.35s ease; }
.faq-item.open .faq-a { max-height: 400px; padding: 0 24px 18px; }
.faq-a p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.8; }

/* ===== Reviews ===== */
.reviews-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.review-card { background: #fff; border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: var(--transition); }
.review-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.review-avatar { width: 48px; height: 48px; background: linear-gradient(135deg, var(--primary), var(--secondary)); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; flex-shrink: 0; }
.review-name { font-weight: 700; font-size: 0.95rem; }
.review-tag { display: inline-block; background: rgba(233,30,140,0.08); color: var(--primary); padding: 2px 8px; border-radius: 50px; font-size: 0.75rem; margin-top: 2px; }
.review-stars { color: #fbbf24; font-size: 0.9rem; margin-left: auto; }
.review-content { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 12px; }
.review-footer { display: flex; justify-content: space-between; align-items: center; font-size: 0.8rem; color: var(--text-muted); }
.review-likes { color: var(--primary); font-weight: 600; }

/* ===== Contact ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-info h3 { font-size: 1.3rem; margin-bottom: 20px; }
.contact-items { display: grid; gap: 16px; }
.contact-item { display: flex; align-items: flex-start; gap: 14px; padding: 16px; background: var(--bg-gray); border-radius: var(--radius); }
.contact-icon { font-size: 1.5rem; flex-shrink: 0; }
.contact-item strong { display: block; font-size: 0.9rem; margin-bottom: 4px; }
.contact-item span { font-size: 0.85rem; color: var(--text-muted); }
.contact-form { background: #fff; border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow); }
.contact-form h3 { font-size: 1.2rem; margin-bottom: 24px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.88rem; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 10px 14px; border: 1.5px solid var(--border); border-radius: 8px; font-size: 0.9rem; font-family: var(--font); color: var(--text); transition: var(--transition); background: #fff; outline: none; }
.form-group input:focus, .form-group textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(233,30,140,0.1); }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-submit { width: 100%; padding: 12px; background: var(--primary); color: #fff; border: none; border-radius: 8px; font-size: 0.95rem; font-weight: 600; cursor: pointer; transition: var(--transition); font-family: var(--font); }
.form-submit:hover { background: var(--primary-dark); transform: translateY(-1px); }

/* ===== CTA Section ===== */
.cta-section { background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%); padding: 72px 0; text-align: center; color: #fff; }
.cta-section h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); margin-bottom: 12px; color: #fff; }
.cta-section p { font-size: 1.05rem; opacity: 0.9; margin-bottom: 28px; }
.btn-white { background: #fff; color: var(--primary); border-color: #fff; }
.btn-white:hover { background: rgba(255,255,255,0.9); color: var(--primary-dark); }

/* ===== Page Hero (inner pages) ===== */
.page-hero { background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%); padding: 60px 0; color: #fff; text-align: center; }
.page-hero h1 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 12px; color: #fff; }
.page-hero p { color: rgba(255,255,255,0.75); font-size: 1rem; max-width: 560px; margin: 0 auto; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: rgba(255,255,255,0.6); justify-content: center; margin-top: 16px; }
.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span { color: rgba(255,255,255,0.4); }

/* ===== Download Cards ===== */
.download-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
.download-card { background: #fff; border-radius: var(--radius-lg); padding: 28px; text-align: center; box-shadow: var(--shadow); border: 2px solid var(--border); transition: var(--transition); }
.download-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.download-icon { font-size: 3rem; margin-bottom: 16px; }
.download-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.download-card p { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 20px; }
.download-btn { display: inline-flex; align-items: center; gap: 6px; padding: 10px 24px; background: var(--primary); color: #fff; border-radius: 50px; font-size: 0.9rem; font-weight: 600; transition: var(--transition); }
.download-btn:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); }
.version-info { font-size: 0.78rem; color: var(--text-muted); margin-top: 10px; }

/* ===== Tips Cards ===== */
.tips-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.tip-card { background: #fff; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); }
.tip-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.tip-card-header { background: linear-gradient(135deg, var(--primary), var(--secondary)); padding: 20px; color: #fff; }
.tip-card-header h3 { font-size: 1rem; }
.tip-card-body { padding: 20px; }
.tip-card-body p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; }
.tip-steps { margin-top: 12px; padding-left: 0; }
.tip-steps li { padding: 4px 0 4px 20px; position: relative; font-size: 0.88rem; color: var(--text-muted); }
.tip-steps li::before { content: counter(step); counter-increment: step; position: absolute; left: 0; color: var(--primary); font-weight: 700; }
.tip-steps { counter-reset: step; }

/* ===== Help Center ===== */
.help-categories { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 48px; }
.help-cat { background: #fff; border-radius: var(--radius); padding: 20px; text-align: center; box-shadow: var(--shadow); border: 2px solid transparent; cursor: pointer; transition: var(--transition); }
.help-cat:hover { border-color: var(--primary); transform: translateY(-3px); }
.help-cat-icon { font-size: 2rem; margin-bottom: 10px; }
.help-cat h3 { font-size: 0.9rem; }
.help-articles { display: grid; gap: 12px; }
.help-article { background: #fff; border-radius: var(--radius); padding: 16px 20px; display: flex; align-items: center; justify-content: space-between; box-shadow: 0 2px 8px rgba(0,0,0,0.04); border: 1px solid var(--border); transition: var(--transition); cursor: pointer; }
.help-article:hover { border-color: var(--primary-light); background: rgba(233,30,140,0.02); }
.help-article-title { font-size: 0.9rem; font-weight: 500; }
.help-article-meta { font-size: 0.8rem; color: var(--text-muted); }
.help-article-arrow { color: var(--text-muted); font-size: 1rem; }

/* ===== Footer ===== */
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,0.75); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-logo { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 1.1rem; font-weight: 700; margin-bottom: 16px; }
.footer-logo img { border-radius: 6px; }
.footer-desc { font-size: 0.88rem; line-height: 1.7; color: rgba(255,255,255,0.6); margin-bottom: 12px; }
.footer-domain { font-size: 0.85rem; color: rgba(255,255,255,0.5); margin-bottom: 16px; }
.footer-domain span { color: var(--primary-light); font-weight: 600; }
.footer-social { display: flex; gap: 10px; flex-wrap: wrap; }
.footer-social a { padding: 6px 14px; background: rgba(255,255,255,0.08); border-radius: 50px; font-size: 0.82rem; color: rgba(255,255,255,0.7); transition: var(--transition); }
.footer-social a:hover { background: var(--primary); color: #fff; }
.footer-links h4 { color: #fff; font-size: 0.95rem; margin-bottom: 16px; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { font-size: 0.88rem; color: rgba(255,255,255,0.55); transition: var(--transition); }
.footer-links a:hover { color: var(--primary-light); }
.footer-bottom { padding: 20px 0; text-align: center; }
.footer-copy { font-size: 0.85rem; color: rgba(255,255,255,0.45); margin-bottom: 6px; }
.footer-icp { font-size: 0.8rem; color: rgba(255,255,255,0.3); }

/* ===== Back to Top ===== */
.back-to-top { position: fixed; bottom: 32px; right: 32px; width: 44px; height: 44px; background: var(--primary); color: #fff; border: none; border-radius: 50%; cursor: pointer; font-size: 1.1rem; box-shadow: 0 4px 16px rgba(233,30,140,0.35); transition: var(--transition); opacity: 0; pointer-events: none; z-index: 999; }
.back-to-top.show { opacity: 1; pointer-events: auto; }
.back-to-top:hover { background: var(--primary-dark); transform: translateY(-3px); }

/* ===== Tags ===== */
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag { padding: 4px 12px; background: var(--bg-gray); border-radius: 50px; font-size: 0.8rem; color: var(--text-muted); border: 1px solid var(--border); transition: var(--transition); cursor: pointer; }
.tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ===== Pagination ===== */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; }
.page-btn { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: 8px; border: 1.5px solid var(--border); font-size: 0.9rem; cursor: pointer; transition: var(--transition); background: #fff; color: var(--text); }
.page-btn:hover, .page-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .tutorial-step { grid-template-columns: 1fr; }
  .tutorial-step:nth-child(even) { direction: ltr; }
}

@media (max-width: 768px) {
  .main-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff; box-shadow: 0 8px 24px rgba(0,0,0,0.1); padding: 16px; z-index: 999; }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 4px; }
  .main-nav a { display: block; padding: 10px 16px; }
  .nav-toggle { display: flex; }
  .hero { min-height: 400px; }
  .hero-stats { gap: 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .changelog-item { grid-template-columns: 1fr; }
  .changelog-meta { text-align: left; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .back-to-top { bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
  .features-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
}