/* 星辰蓝 - 百家体育模板 (bjty) */
:root {
    --bj-primary: #1E3A8A;
    --bj-primary-dark: #1E2761;
    --bj-accent: #3B82F6;
    --bj-accent-dark: #2563EB;
    --bj-hero-btn: #2563EB;
    --bj-hero-btn-hover: #1E3A8A;
    --bj-cta: #FBBF24;
    --bj-bg: #ffffff;
    --bj-sub-bg: #EFF6FF;
    --bj-text: #0F172A;
    --bj-text2: #475569;
    --bj-dark1: #0F172A;
    --bj-dark2: #1E3A8A;
    --bj-update-grad: linear-gradient(135deg, #1E3A8A, #1D4ED8);
    --bj-footer-grad: linear-gradient(to right, #0F172A, #1E3A8A);
}

* { box-sizing: border-box; }
body { font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif; color: var(--bj-text); background: var(--bj-bg); margin: 0; padding: 0; line-height: 1.65; }
a { color: var(--bj-primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--bj-primary-dark); }
img { max-width: 100%; display: block; }
.bj-wrap { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* Header */
.bj-header { background: var(--bj-bg); border-bottom: 1px solid #e5e7eb; position: sticky; top: 0; z-index: 100; padding: 12px 0; box-shadow: 0 1px 4px rgba(0,0,0,.06); }
.bj-header .bj-wrap { display: flex; align-items: center; justify-content: space-between; }
.bj-header .bj-logo { font-size: 22px; font-weight: 800; color: var(--bj-primary); }
.bj-header .bj-logo i { color: var(--bj-accent); margin-right: 6px; }
.bj-nav { display: flex; align-items: center; gap: 8px; }
.bj-nav a { color: var(--bj-text); font-weight: 500; font-size: 15px; padding: 8px 14px; border-radius: 6px; transition: all .2s; }
.bj-nav a:hover { color: var(--bj-primary); background: var(--bj-sub-bg); }
.bj-nav a.bj-nav-cta { background: var(--bj-primary); color: #fff; font-weight: 600; }
.bj-nav a.bj-nav-cta:hover { background: var(--bj-primary-dark); }

/* Hero */
.bj-hero { position: relative; min-height: 520px; display: flex; align-items: center; background: var(--bj-dark1); overflow: hidden; }
.bj-hero .bj-hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .5; }
.bj-hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(0,0,0,.75) 0%, rgba(0,0,0,.35) 60%, transparent 100%); }
.bj-hero .bj-wrap { position: relative; z-index: 2; color: #fff; }
.bj-hero h1 { font-size: 42px; font-weight: 800; margin: 0 0 16px; line-height: 1.2; }
.bj-hero h1 .bj-hero-accent { color: var(--bj-cta); }
.bj-hero p { font-size: 18px; max-width: 640px; color: rgba(255,255,255,.88); margin: 0 0 28px; }
.bj-btn-hero { display: inline-block; padding: 14px 32px; background: var(--bj-hero-btn); color: #fff; font-weight: 700; border-radius: 10px; font-size: 16px; transition: all .2s; box-shadow: 0 6px 20px rgba(0,0,0,.3); }
.bj-btn-hero:hover { background: var(--bj-hero-btn-hover); color: #fff; transform: translateY(-2px); }
.bj-btn-outline { display: inline-block; padding: 14px 32px; border: 2px solid #fff; color: #fff; font-weight: 600; border-radius: 10px; font-size: 16px; margin-left: 12px; transition: all .2s; }
.bj-btn-outline:hover { background: rgba(255,255,255,.15); color: #fff; }
.bj-hero-tags { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 12px; }
.bj-hero-tags span { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22); color: #fff; padding: 6px 16px; border-radius: 30px; font-size: 13px; }
.bj-hero-tags span i { color: var(--bj-cta); margin-right: 5px; }

/* Section base */
.bj-section { padding: 72px 0; }
.bj-section.alt { background: var(--bj-sub-bg); }
.bj-section.dark { background: var(--bj-dark1); color: #fff; }
.bj-title { font-size: 32px; font-weight: 800; text-align: center; margin: 0 0 12px; }
.bj-section.dark .bj-title { color: #fff; }
.bj-sub { text-align: center; color: var(--bj-text2); margin: 0 0 44px; font-size: 16px; }
.bj-section.dark .bj-sub { color: rgba(255,255,255,.7); }

/* Stats */
.bj-stats { background: var(--bj-update-grad); color: #fff; padding: 56px 0; }
.bj-stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 24px; text-align: center; }
.bj-stats-item .bj-stat-num { font-size: 42px; font-weight: 800; line-height: 1.1; }
.bj-stats-item .bj-stat-num i { font-size: 28px; margin-right: 6px; opacity: .9; }
.bj-stats-item .bj-stat-label { font-size: 15px; color: rgba(255,255,255,.85); margin-top: 8px; }

/* Services cards */
.bj-services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.bj-service-card { background: #fff; border-radius: 14px; overflow: hidden; box-shadow: 0 4px 16px rgba(0,0,0,.07); transition: all .3s; }
.bj-service-card:hover { transform: translateY(-6px); box-shadow: 0 14px 30px rgba(0,0,0,.12); }
.bj-service-card .bj-svc-img { aspect-ratio: 16/9; overflow: hidden; background: linear-gradient(135deg, var(--bj-primary), var(--bj-primary-dark)); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 36px; }
.bj-service-card .bj-svc-body { padding: 22px 24px; }
.bj-service-card h3 { font-size: 18px; font-weight: 700; margin: 0 0 10px; color: var(--bj-text); }
.bj-service-card p { font-size: 14px; color: var(--bj-text2); margin: 0; line-height: 1.7; }

/* About + Timeline */
.bj-about .bj-row { display: flex; flex-wrap: wrap; gap: 40px; align-items: center; }
.bj-about .bj-about-txt { flex: 1 1 45%; }
.bj-about .bj-about-txt h2 { font-size: 28px; font-weight: 800; color: var(--bj-primary); margin: 0 0 16px; }
.bj-about .bj-about-txt p { color: var(--bj-text2); font-size: 15px; line-height: 1.9; margin: 0 0 12px; }
.bj-about .bj-timeline { flex: 1 1 50%; position: relative; padding-left: 28px; }
.bj-about .bj-timeline::before { content: ''; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 3px; background: var(--bj-accent); border-radius: 2px; }
.bj-tl-item { position: relative; margin-bottom: 28px; padding: 18px 22px; background: #fff; border-radius: 12px; box-shadow: 0 3px 12px rgba(0,0,0,.07); }
.bj-tl-item::before { content: ''; position: absolute; left: -24px; top: 22px; width: 14px; height: 14px; border-radius: 50%; background: var(--bj-primary); border: 3px solid var(--bj-accent); }
.bj-tl-item h4 { font-size: 16px; font-weight: 700; color: var(--bj-primary); margin: 0 0 8px; }
.bj-tl-item p { font-size: 14px; color: var(--bj-text2); margin: 0; line-height: 1.7; }

/* App section */
.bj-app { background: var(--bj-dark2); color: #fff; }
.bj-app .bj-row { display: flex; flex-wrap: wrap; gap: 40px; align-items: center; }
.bj-app .bj-app-txt { flex: 1 1 55%; }
.bj-app .bj-app-txt h2 { font-size: 28px; font-weight: 800; margin: 0 0 16px; }
.bj-app .bj-app-txt p { color: rgba(255,255,255,.8); margin: 0 0 14px; font-size: 15px; }
.bj-app .bj-app-list { list-style: none; padding: 0; margin: 18px 0 24px; }
.bj-app .bj-app-list li { color: rgba(255,255,255,.85); font-size: 15px; margin-bottom: 10px; }
.bj-app .bj-app-list li i { color: var(--bj-cta); margin-right: 8px; }
.bj-app .bj-app-img { flex: 1 1 40%; text-align: center; }
.bj-app .bj-app-img img { border-radius: 16px; box-shadow: 0 12px 36px rgba(0,0,0,.35); max-width: 100%; }

/* Security / Quality */
.bj-quality-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.bj-quality-card { background: #fff; border-radius: 12px; padding: 28px 22px; text-align: center; box-shadow: 0 3px 14px rgba(0,0,0,.06); border: 1px solid #f0f0f0; transition: all .25s; }
.bj-quality-card:hover { transform: translateY(-4px); box-shadow: 0 10px 28px rgba(0,0,0,.1); }
.bj-quality-card .bj-q-icon { width: 56px; height: 56px; border-radius: 14px; background: var(--bj-sub-bg); color: var(--bj-primary); display: flex; align-items: center; justify-content: center; font-size: 24px; margin: 0 auto 16px; }
.bj-quality-card h4 { font-size: 16px; font-weight: 700; margin: 0 0 8px; color: var(--bj-text); }
.bj-quality-card p { font-size: 13px; color: var(--bj-text2); margin: 0; }

/* Update log */
.bj-updates { background: var(--bj-dark1); color: #fff; }
.bj-update-list { max-width: 720px; margin: 0 auto; }
.bj-update-item { display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
.bj-update-item:last-child { border-bottom: 0; }
.bj-update-badge { flex-shrink: 0; width: 44px; height: 44px; border-radius: 10px; background: var(--bj-primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 18px; }
.bj-update-body h4 { font-size: 16px; font-weight: 700; margin: 0 0 6px; }
.bj-update-body p { font-size: 14px; color: rgba(255,255,255,.7); margin: 0; line-height: 1.6; }
.bj-update-body .bj-up-time { font-size: 12px; color: var(--bj-accent); margin-top: 4px; }

/* Testimonials */
.bj-testimonials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.bj-testimonial-card { background: #fff; border-radius: 14px; padding: 26px 24px; box-shadow: 0 4px 14px rgba(0,0,0,.06); border-left: 4px solid var(--bj-primary); }
.bj-testimonial-card .bj-t-quote { font-size: 15px; color: var(--bj-text2); font-style: italic; margin: 0 0 16px; line-height: 1.7; }
.bj-testimonial-card .bj-t-author { display: flex; align-items: center; gap: 12px; }
.bj-testimonial-card .bj-t-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--bj-sub-bg); display: flex; align-items: center; justify-content: center; color: var(--bj-primary); font-weight: 700; font-size: 16px; }
.bj-testimonial-card .bj-t-info h5 { margin: 0; font-size: 14px; font-weight: 700; color: var(--bj-text); }
.bj-testimonial-card .bj-t-info span { font-size: 12px; color: var(--bj-text2); }
.bj-stars { color: var(--bj-cta); font-size: 14px; margin-bottom: 10px; }

/* News cards */
.bj-news-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 26px; }
.bj-news-card { background: #fff; border-radius: 14px; overflow: hidden; box-shadow: 0 4px 16px rgba(0,0,0,.07); transition: all .3s; display: flex; flex-direction: column; }
.bj-news-card:hover { transform: translateY(-5px); box-shadow: 0 14px 30px rgba(0,0,0,.12); }
.bj-news-card .bj-news-img { aspect-ratio: 16/9; overflow: hidden; background: linear-gradient(135deg, var(--bj-primary), var(--bj-primary-dark)); }
.bj-news-card .bj-news-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.bj-news-card:hover .bj-news-img img { transform: scale(1.05); }
.bj-news-card .bj-news-body { padding: 20px 22px; flex: 1; display: flex; flex-direction: column; }
.bj-news-card .bj-news-body h3 { font-size: 17px; font-weight: 700; margin: 0 0 10px; line-height: 1.5; }
.bj-news-card .bj-news-body h3 a { color: var(--bj-text); }
.bj-news-card .bj-news-body h3 a:hover { color: var(--bj-primary); }
.bj-news-card .bj-news-body p { font-size: 14px; color: var(--bj-text2); margin: 0 0 14px; flex: 1; }
.bj-news-meta { display: flex; gap: 14px; font-size: 12px; color: var(--bj-text2); }
.bj-news-meta i { color: var(--bj-primary); margin-right: 3px; }

/* CTA band */
.bj-ctaband { background: var(--bj-cta); color: #1a1a1a; padding: 44px 0; }
.bj-ctaband .bj-wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; }
.bj-ctaband h2 { margin: 0; font-size: 24px; font-weight: 800; }
.bj-ctaband a { background: var(--bj-dark2); color: #fff; padding: 14px 30px; border-radius: 10px; font-weight: 700; font-size: 15px; transition: all .2s; }
.bj-ctaband a:hover { background: var(--bj-dark1); }

/* Inner page header */
.bj-pagehead { background: var(--bj-update-grad); color: #fff; padding: 56px 0; text-align: center; }
.bj-pagehead h1 { margin: 0; font-size: 30px; font-weight: 800; }
.bj-pagehead p { margin: 10px 0 0; color: rgba(255,255,255,.85); }

/* Detail */
.bj-detail { max-width: 860px; margin: 0 auto; }
.bj-detail h1.bj-detail-title { font-size: 28px; font-weight: 800; color: var(--bj-text); margin: 0 0 16px; line-height: 1.35; }
.bj-detail .bj-detail-meta { display: flex; flex-wrap: wrap; gap: 18px; color: var(--bj-text2); font-size: 14px; padding-bottom: 18px; border-bottom: 1px solid #eef0f3; margin-bottom: 24px; }
.bj-detail .bj-detail-meta i { color: var(--bj-primary); margin-right: 4px; }
.bj-detail-body { font-size: 17px; line-height: 1.9; color: #374151; word-break: break-word; }
.bj-detail-body img { border-radius: 10px; margin: 16px auto; height: auto; }
.bj-back { display: inline-block; margin-top: 32px; padding: 10px 22px; background: var(--bj-primary); color: #fff; border-radius: 8px; }
.bj-back:hover { background: var(--bj-primary-dark); color: #fff; }

/* Pagination */
.bj-page { display: flex; justify-content: center; gap: 8px; margin-top: 36px; flex-wrap: wrap; }
.bj-page a, .bj-page span { padding: 8px 14px; border: 1px solid #e5e7eb; border-radius: 8px; color: var(--bj-text2); font-size: 14px; }
.bj-page .active, .bj-page a:hover { background: var(--bj-primary); color: #fff; border-color: var(--bj-primary); }

/* Search */
.bj-searchbar { display: flex; gap: 10px; max-width: 620px; margin: 0 auto 36px; }
.bj-searchbar input { flex: 1; padding: 13px 18px; border: 1px solid #dee2e6; border-radius: 10px; font-size: 16px; }
.bj-searchbar button { padding: 13px 28px; background: var(--bj-primary); color: #fff; border: 0; border-radius: 10px; font-weight: 700; cursor: pointer; }
.bj-searchbar button:hover { background: var(--bj-primary-dark); }

/* Tags */
.bj-tagcloud { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; max-width: 860px; margin: 0 auto; }
.bj-tagcloud a { padding: 8px 18px; background: var(--bj-sub-bg); color: var(--bj-primary); border-radius: 24px; font-size: 14px; border: 1px solid transparent; transition: all .2s; }
.bj-tagcloud a:hover { background: var(--bj-primary); color: #fff; }

/* Footer */
.bj-footer { background: var(--bj-footer-grad); color: rgba(255,255,255,.7); padding: 56px 0 24px; }
.bj-footer .bj-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.3fr; gap: 32px; margin-bottom: 32px; }
.bj-footer h5 { color: #fff; font-size: 16px; font-weight: 700; margin: 0 0 16px; }
.bj-footer .bj-brand-text { font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 12px; }
.bj-footer .bj-brand-text i { color: var(--bj-cta); margin-right: 6px; }
.bj-footer p { font-size: 14px; line-height: 1.8; margin: 0; }
.bj-footer ul { list-style: none; padding: 0; margin: 0; }
.bj-footer ul li { margin-bottom: 10px; }
.bj-footer ul li a { color: rgba(255,255,255,.68); font-size: 14px; }
.bj-footer ul li a:hover { color: var(--bj-cta); }
.bj-footer .bj-contact li { display: flex; gap: 10px; align-items: flex-start; }
.bj-footer .bj-contact i { color: var(--bj-cta); margin-top: 3px; }
.bj-footer .bj-copy { text-align: center; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.12); font-size: 13px; color: rgba(255,255,255,.5); }

/* Responsive */
@media (max-width: 768px) {
    .bj-header .bj-wrap { flex-direction: column; gap: 10px; }
    .bj-nav { flex-wrap: wrap; justify-content: center; gap: 6px; }
    .bj-nav a { font-size: 13px; padding: 6px 10px; }
    .bj-hero { min-height: 400px; }
    .bj-hero h1 { font-size: 28px; }
    .bj-hero p { font-size: 15px; }
    .bj-btn-outline { margin-left: 0; margin-top: 10px; }
    .bj-about .bj-row, .bj-app .bj-row { flex-direction: column; }
    .bj-title { font-size: 24px; }
    .bj-section { padding: 44px 0; }
    .bj-stats-item .bj-stat-num { font-size: 32px; }
    .bj-footer .bj-footer-grid { grid-template-columns: 1fr; }
    .bj-ctaband .bj-wrap { flex-direction: column; text-align: center; }
}