/* ===== ts-binance.com - IT_04_Startup2 Style ===== */
/* Corporate blue/white theme based on IT_04_Startup2.png */

:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #3b82f6;
  --primary-bg: #eff6ff;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --text: #334155;
  --text-light: #64748b;
  --border: #e2e8f0;
  --bg-gray: #f8fafc;
  --white: #ffffff;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --max-w: 1200px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); line-height: 1.7; background: var(--white); }
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; }
ul, ol { list-style: none; }
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 1.25rem; }

/* ===== Buttons ===== */
.btn { display: inline-block; padding: .75rem 1.75rem; border-radius: var(--radius); font-weight: 600; font-size: .95rem; transition: all .25s; border: 2px solid transparent; cursor: pointer; }
.btn-primary { background: var(--primary); color: var(--white); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: var(--white); }
.btn-white { background: var(--white); color: var(--primary); border-color: var(--white); }
.btn-white:hover { background: transparent; color: var(--white); border-color: var(--white); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: var(--white); }

/* ===== Header ===== */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: var(--white); box-shadow: var(--shadow); transition: background .3s; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo-link { display: flex; align-items: center; gap: .5rem; font-weight: 700; font-size: 1.25rem; color: var(--dark); }
.logo-link:hover { color: var(--primary); }
.logo-img { border-radius: 6px; }
.main-nav { display: flex; align-items: center; gap: .25rem; }
.nav-link { padding: .5rem .85rem; border-radius: var(--radius); color: var(--text); font-weight: 500; font-size: .9rem; transition: all .2s; }
.nav-link:hover, .nav-link.active { color: var(--primary); background: var(--primary-bg); }
.nav-lang-wrap { position: relative; margin-left: .5rem; }
.nav-lang-btn { display: flex; align-items: center; gap: .35rem; padding: .45rem .75rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--white); cursor: pointer; font-size: .85rem; color: var(--text); }
.nav-lang-btn:hover { border-color: var(--primary); color: var(--primary); }
.lang-dropdown { display: none; position: absolute; top: calc(100% + 6px); right: 0; background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-lg); min-width: 140px; padding: .4rem 0; z-index: 50; }
.nav-lang-wrap.open .lang-dropdown { display: block; }
.lang-dropdown a { display: block; padding: .45rem 1rem; font-size: .85rem; color: var(--text); }
.lang-dropdown a:hover, .lang-dropdown a.active { background: var(--primary-bg); color: var(--primary); }
.mobile-toggle { display: none; background: none; border: none; color: var(--text); cursor: pointer; padding: .4rem; }

/* ===== Hero ===== */
.hero { position: relative; min-height: 520px; display: flex; flex-direction: column; justify-content: center; align-items: center; background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%); color: var(--white); text-align: center; margin-top: 70px; overflow: hidden; }
.hero-overlay { position: absolute; inset: 0; background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 600"><rect fill="%230f172a" width="1440" height="600"/><circle cx="200" cy="150" r="300" fill="%231e3a5f" opacity="0.3"/><circle cx="1200" cy="400" r="250" fill="%23164e87" opacity="0.2"/><circle cx="700" cy="100" r="200" fill="%231e40af" opacity="0.15"/></svg>') center/cover no-repeat; opacity: .6; }
.hero-content { position: relative; z-index: 2; padding: 3rem 1rem 1.5rem; }
.hero h1 { font-size: 2.75rem; font-weight: 800; line-height: 1.2; max-width: 700px; margin: 0 auto .75rem; }
.hero-desc { font-size: 1.1rem; max-width: 560px; margin: 0 auto 1.5rem; opacity: .9; line-height: 1.6; }
.hero-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.hero-stats { position: relative; z-index: 2; width: 100%; }
.stats-row { display: flex; justify-content: center; gap: 2rem; padding: 2rem 0 2.5rem; flex-wrap: wrap; }
.stat-item { text-align: center; min-width: 120px; }
.stat-num { display: block; font-size: 2rem; font-weight: 800; color: var(--primary-light); }
.stat-label { font-size: .85rem; opacity: .8; margin-top: .2rem; display: block; }

/* ===== Section Headers ===== */
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 { font-size: 2rem; font-weight: 700; color: var(--dark); margin-bottom: .5rem; }
.section-badge { display: inline-block; background: var(--primary-bg); color: var(--primary); font-size: .8rem; font-weight: 600; padding: .3rem .9rem; border-radius: 50px; margin-bottom: .75rem; text-transform: uppercase; letter-spacing: .5px; }

/* ===== About Section ===== */
.about-section { padding: 5rem 0; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.about-text h2 { font-size: 2rem; font-weight: 700; color: var(--dark); margin-bottom: 1rem; }
.about-text p { color: var(--text-light); margin-bottom: 1.5rem; line-height: 1.8; }
.about-checks { margin-bottom: 2rem; }
.about-checks li { display: flex; align-items: center; gap: .6rem; padding: .4rem 0; color: var(--text); font-weight: 500; }
.about-checks li svg { color: var(--primary); flex-shrink: 0; }
.about-visual { display: flex; justify-content: center; align-items: center; }
.about-card-stack { position: relative; width: 320px; height: 320px; }
.about-card-bg { position: absolute; top: 20px; left: 20px; right: -10px; bottom: -10px; background: var(--primary-bg); border-radius: var(--radius-lg); }
.about-card-main { position: relative; background: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); padding: 3rem 2rem; text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%; }
.about-card-main svg { color: var(--primary); margin-bottom: 1.5rem; }
.about-card-main p { color: var(--text-light); font-size: .95rem; }

/* ===== Services ===== */
.services-section { padding: 5rem 0; background: var(--bg-gray); }
.services-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.service-card { background: var(--white); border-radius: var(--radius-lg); padding: 2rem 1.5rem; text-align: center; box-shadow: var(--shadow); transition: all .3s; border: 1px solid var(--border); }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.service-icon { width: 60px; height: 60px; background: var(--primary-bg); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem; color: var(--primary); }
.service-card h3 { font-size: 1.05rem; color: var(--dark); margin-bottom: .5rem; }
.service-card p { font-size: .85rem; color: var(--text-light); margin-bottom: 1rem; line-height: 1.6; }
.service-link { font-size: .85rem; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: .3rem; }
.service-link:hover { gap: .6rem; }

/* ===== Process Steps ===== */
.process-section { padding: 5rem 0; }
.process-steps { display: flex; align-items: flex-start; justify-content: center; gap: 0; flex-wrap: wrap; }
.step-item { text-align: center; flex: 1; min-width: 160px; max-width: 240px; padding: 0 1rem; }
.step-circle { width: 64px; height: 64px; border-radius: 50%; background: var(--primary); color: var(--white); display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem; font-size: 1.5rem; font-weight: 700; }
.step-item h3 { font-size: 1rem; color: var(--dark); margin-bottom: .4rem; }
.step-item p { font-size: .85rem; color: var(--text-light); line-height: 1.6; }
.step-line { width: 60px; height: 2px; background: var(--border); margin-top: 32px; flex-shrink: 0; }

/* ===== CTA Section ===== */
.cta-section { padding: 4rem 0; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); color: var(--white); text-align: center; }
.cta-inner h2 { font-size: 2rem; font-weight: 700; margin-bottom: .75rem; }
.cta-inner p { font-size: 1.05rem; opacity: .9; margin-bottom: 1.5rem; max-width: 500px; margin-left: auto; margin-right: auto; }

/* ===== Reviews ===== */
.reviews-section { padding: 5rem 0; background: var(--bg-gray); }
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.review-card { background: var(--white); border-radius: var(--radius-lg); padding: 2rem; box-shadow: var(--shadow); }
.review-stars { color: #f59e0b; margin-bottom: .75rem; display: flex; gap: .15rem; }
.review-text { font-size: .95rem; color: var(--text); line-height: 1.7; margin-bottom: 1rem; font-style: italic; }
.review-author { font-weight: 600; color: var(--dark); font-size: .9rem; }

/* ===== FAQ ===== */
.faq-section { padding: 5rem 0; }
.faq-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; max-width: 900px; margin: 0 auto; }
.faq-card { display: flex; align-items: center; gap: .75rem; padding: 1rem 1.25rem; background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); transition: all .25s; }
.faq-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-2px); color: var(--primary); }
.faq-card-icon { flex-shrink: 0; width: 32px; height: 32px; background: var(--primary-bg); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--primary); transition: all .25s; }
.faq-card:hover .faq-card-icon { background: var(--primary); color: var(--white); }
.faq-card-text { font-size: .9rem; font-weight: 500; line-height: 1.4; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: .75rem; overflow: hidden; }
.faq-item summary { padding: 1rem 1.25rem; font-weight: 600; cursor: pointer; color: var(--dark); font-size: .95rem; list-style: none; display: flex; justify-content: space-between; align-items: center; transition: background .2s; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.25rem; color: var(--primary); font-weight: 400; }
.faq-item[open] summary::after { content: '-'; }
.faq-item[open] summary { background: var(--primary-bg); color: var(--primary); }
.faq-answer { padding: 1rem 1.25rem; font-size: .9rem; color: var(--text-light); line-height: 1.7; }
@media (max-width: 640px) { .faq-cards { grid-template-columns: 1fr; } }

/* ===== Latest Posts ===== */
.latest-section { padding: 5rem 0; background: var(--bg-gray); }
.latest-section .section-header { display: flex; justify-content: space-between; align-items: center; }
.posts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.post-card { display: block; background: var(--white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); transition: all .3s; border: 1px solid var(--border); color: var(--text); }
.post-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); color: var(--text); }
.card-body { padding: 1.5rem; }
.card-tags { display: flex; gap: .4rem; flex-wrap: wrap; margin-bottom: .6rem; }
.card-tag { font-size: .7rem; background: var(--primary-bg); color: var(--primary); padding: .15rem .55rem; border-radius: 50px; font-weight: 500; }
.card-body h3 { font-size: 1rem; color: var(--dark); margin-bottom: .5rem; font-weight: 600; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-excerpt { font-size: .85rem; color: var(--text-light); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: .75rem; }
.card-meta { display: flex; justify-content: space-between; font-size: .8rem; color: var(--text-light); }

/* ===== Archive Page ===== */
.page-hero { background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%); color: var(--white); padding: 5rem 0 3rem; margin-top: 70px; text-align: center; }
.page-hero h1 { font-size: 2.25rem; font-weight: 700; }
.page-hero p { opacity: .85; margin-top: .5rem; }
.archive-page .container, .tags-page .container, .tag-page .container { padding-top: 3rem; padding-bottom: 4rem; }

/* ===== Tags Page ===== */
.tags-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.tag-card { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 2rem 1.5rem; background: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow); border: 1px solid var(--border); transition: all .3s; color: var(--text); }
.tag-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--primary); color: var(--text); }
.tag-icon { width: 64px; height: 64px; background: var(--primary-bg); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-bottom: 1rem; color: var(--primary); }
.tag-card h3 { color: var(--dark); font-size: 1.05rem; margin-bottom: .4rem; }
.tag-card p { font-size: .8rem; color: var(--text-light); line-height: 1.5; }

/* ===== Pagination ===== */
.pagination { display: flex; justify-content: center; gap: .4rem; padding: 2rem 0; }
.page-num { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: var(--radius); border: 1px solid var(--border); color: var(--text); font-weight: 500; font-size: .9rem; transition: all .2s; }
.page-num:hover, .page-num.active { background: var(--primary); color: var(--white); border-color: var(--primary); }

/* ===== Post Page ===== */
.post-hero { background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%); color: var(--white); padding: 5rem 0 2.5rem; margin-top: 70px; }
.breadcrumb { display: flex; align-items: center; gap: .4rem; font-size: .85rem; margin-bottom: 1.25rem; opacity: .8; flex-wrap: wrap; }
.breadcrumb a { color: var(--white); opacity: .8; }
.breadcrumb a:hover { opacity: 1; color: var(--white); }
.breadcrumb span { opacity: .5; }
.breadcrumb span:last-child { opacity: .9; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.post-title { font-size: 2rem; font-weight: 700; line-height: 1.3; max-width: 800px; }
.post-meta { display: flex; gap: 1.5rem; margin-top: 1rem; font-size: .85rem; opacity: .8; flex-wrap: wrap; }
.meta-item { display: flex; align-items: center; gap: .35rem; }
.meta-item a { color: var(--white); opacity: .9; }
.meta-item a:hover { opacity: 1; }
.post-layout { display: grid; grid-template-columns: 1fr 300px; gap: 3rem; padding: 3rem 1.25rem 4rem; }
.post-content { min-width: 0; }
.post-content h2 { font-size: 1.5rem; color: var(--dark); margin: 2rem 0 .75rem; padding-bottom: .5rem; border-bottom: 2px solid var(--primary-bg); }
.post-content h3 { font-size: 1.2rem; color: var(--dark); margin: 1.5rem 0 .5rem; }
.post-content p { margin-bottom: 1rem; line-height: 1.8; }
.post-content ul, .post-content ol { margin: .75rem 0 1rem 1.5rem; }
.post-content ul { list-style: disc; }
.post-content ol { list-style: decimal; }
.post-content li { margin-bottom: .4rem; line-height: 1.7; }
.post-content a { color: var(--primary); text-decoration: underline; }
.post-content blockquote { border-left: 4px solid var(--primary); background: var(--primary-bg); padding: 1rem 1.25rem; margin: 1rem 0; border-radius: 0 var(--radius) var(--radius) 0; }
.post-content code { background: var(--bg-gray); padding: .15rem .4rem; border-radius: 4px; font-size: .9em; }
.post-content pre { background: var(--dark); color: #e2e8f0; padding: 1.25rem; border-radius: var(--radius); overflow-x: auto; margin: 1rem 0; }
.post-content pre code { background: transparent; padding: 0; }
.post-content table { width: 100%; border-collapse: collapse; margin: 1rem 0; }
.post-content th, .post-content td { border: 1px solid var(--border); padding: .6rem .8rem; text-align: left; }
.post-content th { background: var(--bg-gray); font-weight: 600; }
.post-content img { border-radius: var(--radius); margin: 1rem 0; }

/* ===== Sidebar ===== */
.post-sidebar { position: sticky; top: 90px; }
.sidebar-block { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.25rem; margin-bottom: 1.5rem; }
.sidebar-block h3 { font-size: 1rem; font-weight: 700; color: var(--dark); margin-bottom: 1rem; padding-bottom: .6rem; border-bottom: 2px solid var(--primary); }
.sidebar-posts li { padding: .5rem 0; border-bottom: 1px solid var(--border); }
.sidebar-posts li:last-child { border-bottom: none; }
.sidebar-posts a { font-size: .85rem; color: var(--text); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: 1.5; }
.sidebar-posts a:hover { color: var(--primary); }
.sidebar-cats li { padding: .4rem 0; }
.sidebar-cats a { font-size: .85rem; color: var(--text); display: flex; align-items: center; gap: .5rem; }
.sidebar-cats a:hover { color: var(--primary); }
.sidebar-cats a svg { flex-shrink: 0; }

/* ===== Related Posts ===== */
.related-section { padding: 3rem 0 4rem; background: var(--bg-gray); }
.related-section h2 { font-size: 1.5rem; font-weight: 700; color: var(--dark); margin-bottom: 1.5rem; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.related-card { display: block; background: var(--white); border-radius: var(--radius); padding: 1.25rem; box-shadow: var(--shadow); transition: all .3s; border: 1px solid var(--border); color: var(--text); }
.related-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); color: var(--text); }
.related-card h4 { font-size: .95rem; color: var(--dark); margin-bottom: .5rem; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-date { font-size: .8rem; color: var(--text-light); }

/* ===== Page Body ===== */
.page-body { padding: 3rem 0 4rem; max-width: 800px; }
.page-body h2 { font-size: 1.5rem; color: var(--dark); margin: 2rem 0 .75rem; }
.page-body h3 { font-size: 1.2rem; color: var(--dark); margin: 1.5rem 0 .5rem; }
.page-body p { margin-bottom: 1rem; line-height: 1.8; }
.page-body ul, .page-body ol { margin: .75rem 0 1rem 1.5rem; }
.page-body ul { list-style: disc; }
.page-body ol { list-style: decimal; }
.page-body li { margin-bottom: .4rem; line-height: 1.7; }
.page-body a { color: var(--primary); }

/* ===== Footer ===== */
.site-footer { background: var(--dark); color: #94a3b8; padding: 4rem 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; padding-bottom: 2.5rem; }
.footer-brand { }
.footer-logo { display: flex; align-items: center; gap: .5rem; font-size: 1.15rem; font-weight: 700; color: var(--white); margin-bottom: .75rem; }
.footer-logo:hover { color: var(--primary-light); }
.footer-desc { font-size: .85rem; line-height: 1.7; }
.footer-col h4 { color: var(--white); font-size: .95rem; margin-bottom: 1rem; font-weight: 600; }
.footer-col ul li { margin-bottom: .5rem; }
.footer-col a { color: #94a3b8; font-size: .85rem; }
.footer-col a:hover { color: var(--primary-light); }
.footer-col a.active { color: var(--primary-light); }
.footer-lang-list { columns: 2; }
.footer-risk { border-top: 1px solid rgba(255,255,255,.1); padding: 1.5rem 0; }
.footer-risk h5 { color: #f59e0b; font-size: .85rem; margin-bottom: .4rem; }
.footer-risk p { font-size: .8rem; line-height: 1.6; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 1.25rem 0; text-align: center; }
.footer-bottom p { font-size: .8rem; }

/* ===== Mobile ===== */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .tags-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .about-visual { order: -1; }
  .about-card-stack { width: 260px; height: 260px; }
}
@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .hero { min-height: 420px; }
  .stat-num { font-size: 1.5rem; }
  .stats-row { gap: 1rem; }
  .section-header h2 { font-size: 1.5rem; }
  .posts-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .post-layout { grid-template-columns: 1fr; }
  .post-sidebar { position: static; }
  .process-steps { flex-direction: column; align-items: center; }
  .step-line { width: 2px; height: 30px; margin: 0; }
  .mobile-toggle { display: block; }
  .main-nav { position: fixed; top: 70px; left: 0; right: 0; background: var(--white); flex-direction: column; padding: 1rem; gap: .25rem; box-shadow: var(--shadow-lg); transform: translateY(-120%); transition: transform .3s; z-index: 99; }
  .main-nav.open { transform: translateY(0); }
  .nav-link { width: 100%; text-align: left; padding: .65rem .85rem; }
  .nav-lang-wrap { width: 100%; margin-left: 0; }
  .nav-lang-btn { width: 100%; justify-content: center; }
  .lang-dropdown { position: static; box-shadow: none; border: 1px solid var(--border); margin-top: .4rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .latest-section .section-header { flex-direction: column; gap: 1rem; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 1.65rem; }
  .hero-desc { font-size: .95rem; }
  .posts-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .tags-grid { grid-template-columns: 1fr; }
  .post-title { font-size: 1.5rem; }
  .page-hero { padding: 4rem 0 2rem; }
  .page-hero h1 { font-size: 1.75rem; }
}

/* ===== Download Page ===== */
.dl-section { padding: 3rem 0 4rem; }
.dl-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.dl-card--desktop { grid-column: 1 / -1; }
.dl-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); display: flex; flex-direction: column; }
.dl-card-header { display: flex; align-items: center; gap: 1rem; padding: 1.5rem 2rem; border-bottom: 1px solid var(--border); }
.dl-card--android .dl-card-header { background: linear-gradient(135deg, #e8f5e9 0%, #f1f8e9 100%); }
.dl-card--ios .dl-card-header { background: linear-gradient(135deg, #e3f2fd 0%, #ede7f6 100%); }
.dl-card--desktop .dl-card-header { background: linear-gradient(135deg, #fff3e0 0%, #fce4ec 100%); }
.dl-icon { width: 56px; height: 56px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.dl-card--android .dl-icon { background: #43a047; color: var(--white); }
.dl-card--ios .dl-icon { background: var(--primary); color: var(--white); }
.dl-card--desktop .dl-icon { background: #ef6c00; color: var(--white); }
.dl-card-header h2 { font-size: 1.4rem; color: var(--dark); margin: 0; flex: 1; }
.dl-badge { display: inline-block; padding: .3rem .8rem; border-radius: 50px; font-size: .75rem; font-weight: 600; background: #43a047; color: var(--white); }
.dl-badge--alt { background: var(--primary); }
.dl-badge--neutral { background: #ef6c00; }
.dl-card-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.dl-desc { font-size: .88rem; color: var(--text); margin-bottom: 1rem; line-height: 1.6; }
.dl-btn { display: block; text-align: center; padding: .65rem 1.5rem; font-size: .9rem; border-radius: var(--radius); margin-top: auto; }
.dl-btn--ios { background: var(--dark); border-color: var(--dark); }
.dl-btn--ios:hover { background: var(--dark-2); border-color: var(--dark-2); color: var(--white); }
.dl-steps { margin-bottom: 1.25rem; }
.dl-steps h3 { font-size: .95rem; color: var(--dark); margin-bottom: .5rem; padding-bottom: .35rem; border-bottom: 2px solid var(--primary-bg); }
.dl-steps ol { margin-left: 1.25rem; list-style: decimal; }
.dl-steps ol li { margin-bottom: .35rem; line-height: 1.6; color: var(--text); font-size: .85rem; }
.dl-steps p { color: var(--text); line-height: 1.6; margin-top: .4rem; font-size: .85rem; }
.dl-note { font-size: .9rem; color: var(--text-light); margin-top: .75rem; padding: .6rem 1rem; background: var(--primary-bg); border-radius: var(--radius); }
.dl-note a { font-weight: 600; }
.dl-tips { background: #fff8e1; border: 1px solid #ffe082; border-radius: var(--radius); padding: 1.25rem; margin-top: .5rem; }
.dl-tips h4 { display: flex; align-items: center; gap: .4rem; font-size: .9rem; color: #e65100; margin-bottom: .6rem; }
.dl-tips ul { margin-left: 1.25rem; list-style: disc; }
.dl-tips ul li { font-size: .85rem; color: var(--text); margin-bottom: .35rem; line-height: 1.6; }

.dl-safety { padding: 0 0 4rem; }
.safety-box { background: var(--dark); border-radius: var(--radius-lg); padding: 2.5rem; color: #cbd5e1; }
.safety-box h2 { display: flex; align-items: center; gap: .6rem; color: var(--white); font-size: 1.4rem; margin-bottom: 1.5rem; }
.safety-box h2 svg { color: #4ade80; }
.safety-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.safety-item { background: rgba(255,255,255,.06); border-radius: var(--radius); padding: 1.25rem; border: 1px solid rgba(255,255,255,.08); }
.safety-item h4 { color: var(--white); font-size: .95rem; margin-bottom: .4rem; }
.safety-item p { font-size: .85rem; line-height: 1.6; }

@media (max-width: 768px) {
  .dl-cards { grid-template-columns: 1fr; }
  .dl-card-header { padding: 1.25rem; }
  .dl-card-body { padding: 1.25rem; }
  .safety-grid { grid-template-columns: 1fr; }
  .dl-card-header h2 { font-size: 1.15rem; }
  .safety-box { padding: 1.5rem; }
}

/* ===== About Page ===== */
.about-page-section { padding: 3rem 0 4rem; }
.about-page-grid { display: grid; grid-template-columns: 1fr 300px; gap: 3rem; }
.about-page-main { min-width: 0; }
.about-block { margin-bottom: 2.5rem; }
.about-block h2 { font-size: 1.5rem; color: var(--dark); margin-bottom: 1rem; padding-bottom: .5rem; border-bottom: 2px solid var(--primary-bg); }
.about-block p { color: var(--text); line-height: 1.8; margin-bottom: .75rem; }
.about-features { display: flex; flex-direction: column; gap: 1.25rem; }
.about-feature { display: flex; gap: 1rem; padding: 1.25rem; background: var(--bg-gray); border-radius: var(--radius); border: 1px solid var(--border); }
.about-feature-icon { width: 50px; height: 50px; background: var(--primary-bg); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--primary); flex-shrink: 0; }
.about-feature h3 { font-size: 1rem; color: var(--dark); margin-bottom: .3rem; }
.about-feature p { font-size: .9rem; color: var(--text-light); line-height: 1.6; margin: 0; }
.about-standards { list-style: none; }
.about-standards li { display: flex; align-items: flex-start; gap: .6rem; padding: .5rem 0; color: var(--text); line-height: 1.6; }
.about-standards li svg { color: var(--primary); flex-shrink: 0; margin-top: .15rem; }
.about-page-sidebar { position: sticky; top: 90px; }
.about-stats-list { display: flex; flex-direction: column; gap: .5rem; }
.about-stat-row { display: flex; align-items: center; gap: .6rem; padding: .5rem 0; border-bottom: 1px solid var(--border); font-size: .9rem; color: var(--text); }
.about-stat-row:last-child { border-bottom: none; }
.about-stat-val { font-size: 1.3rem; font-weight: 700; color: var(--primary); min-width: 50px; }

@media (max-width: 768px) {
  .about-page-grid { grid-template-columns: 1fr; }
  .about-page-sidebar { position: static; }
}