/* 烈焰红 主题 - 体育企业模板 (sp) · 通用企业落地页版式 */
:root {
    --sp-primary: #C41E3A;
    --sp-primary-dark: #861428;
    --sp-accent: #FFC300;
    --sp-accent-dark: #D9A000;
    --sp-hero-btn: #C41E3A;
    --sp-hero-btn-hover: #861428;
    --sp-cta: #FFC300;
    --sp-bg: #ffffff;
    --sp-sub-bg: #FDF1F2;
    --sp-text: #1F2430;
    --sp-text2: #6B7280;
    --sp-dark1: #2A0A12;
    --sp-dark2: #861428;
    --sp-update-grad: linear-gradient(135deg, #C41E3A, #861428);
    --sp-line: #ECEEF1;
}
* { box-sizing: border-box; }
body { font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; color: var(--sp-text); background: var(--sp-bg); margin: 0; padding: 0; line-height: 1.7; }
a { color: var(--sp-primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--sp-primary-dark); }
img { max-width: 100%; display: block; }
.sp-wrap { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* ============ Header (白色 sticky) ============ */
.sp-header { background: #fff; box-shadow: 0 2px 12px rgba(0,0,0,.08); position: sticky; top: 0; z-index: 1000; }
.sp-header .sp-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.sp-logo { display: flex; align-items: center; gap: 10px; }
.sp-logo .sp-logo-badge { width: 40px; height: 40px; border-radius: 10px; background: var(--sp-update-grad); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 20px; }
.sp-logo .sp-logo-text { font-size: 21px; font-weight: 800; color: var(--sp-text); letter-spacing: .5px; }
.sp-nav { display: flex; align-items: center; gap: 6px; }
.sp-nav a { color: var(--sp-text); font-weight: 600; font-size: 15px; padding: 9px 14px; border-radius: 6px; transition: all .2s; }
.sp-nav a:hover { color: var(--sp-primary); background: var(--sp-sub-bg); }
.sp-nav a.sp-cta { background: var(--sp-primary); color: #fff; font-weight: 700; border-radius: 30px; padding: 9px 22px; }
.sp-nav a.sp-cta:hover { background: var(--sp-primary-dark); color: #fff; }

/* ============ Hero (左文右图 / 大图遮罩) ============ */
.sp-hero { position: relative; min-height: 560px; display: flex; align-items: center; background: var(--sp-dark1); overflow: hidden; }
.sp-hero .sp-hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .6; }
.sp-hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(0,0,0,.78) 0%, rgba(0,0,0,.45) 50%, rgba(0,0,0,.2) 100%); }
.sp-hero .sp-wrap { position: relative; z-index: 2; }
.sp-hero .sp-hero-txt { max-width: 680px; color: #fff; }
.sp-hero .sp-eyebrow { display: inline-block; letter-spacing: 3px; font-size: 14px; font-weight: 700; color: var(--sp-cta); margin-bottom: 14px; text-transform: uppercase; }
.sp-hero h1 { font-size: 46px; font-weight: 800; margin: 0 0 18px; line-height: 1.18; }
.sp-hero h1 .sp-accent { color: var(--sp-cta); }
.sp-hero p { font-size: 18px; color: rgba(255,255,255,.9); margin: 0 0 30px; }
.sp-hero-btns { display: flex; flex-wrap: wrap; gap: 14px; }
.sp-btn-hero { display: inline-block; padding: 14px 32px; background: var(--sp-hero-btn); color: #fff; font-weight: 700; border-radius: 34px; font-size: 16px; transition: all .2s; box-shadow: 0 8px 22px rgba(0,0,0,.25); }
.sp-btn-hero:hover { background: var(--sp-hero-btn-hover); color: #fff; transform: translateY(-2px); }
.sp-btn-ghost { display: inline-block; padding: 14px 32px; background: transparent; color: #fff; font-weight: 700; border-radius: 34px; font-size: 16px; border: 2px solid rgba(255,255,255,.6); transition: all .2s; }
.sp-btn-ghost:hover { background: #fff; color: var(--sp-dark1); border-color: #fff; }

/* ============ Section base ============ */
.sp-section { padding: 78px 0; }
.sp-section.alt { background: var(--sp-sub-bg); }
.sp-head { text-align: center; margin-bottom: 46px; }
.sp-head .sp-en { letter-spacing: 3px; font-size: 14px; color: var(--sp-primary); font-weight: 700; text-transform: uppercase; }
.sp-head h2 { font-size: 32px; font-weight: 800; margin: 8px 0 10px; color: var(--sp-text); }
.sp-head .sp-bar { width: 54px; height: 3px; background: var(--sp-cta); margin: 0 auto 14px; border-radius: 3px; }
.sp-head p { color: var(--sp-text2); margin: 0; font-size: 16px; }

/* ============ Services (我们的服务 4卡) ============ */
.sp-services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 24px; }
.sp-service-card { background: #fff; padding: 34px 26px; border-radius: 14px; box-shadow: 0 6px 20px rgba(0,0,0,.06); border: 1px solid var(--sp-line); transition: all .25s; text-align: center; }
.sp-service-card:hover { transform: translateY(-6px); box-shadow: 0 16px 34px rgba(0,0,0,.12); border-color: var(--sp-primary); }
.sp-service-card .sp-svc-icon { width: 68px; height: 68px; border-radius: 16px; background: var(--sp-update-grad); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 28px; margin: 0 auto 18px; }
.sp-service-card h3 { font-size: 19px; font-weight: 700; margin: 0 0 10px; color: var(--sp-text); }
.sp-service-card p { font-size: 14px; color: var(--sp-text2); margin: 0; line-height: 1.75; }

/* ============ Stats (数据带) ============ */
.sp-stats { background: var(--sp-update-grad); color: #fff; padding: 58px 0; }
.sp-stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 24px; text-align: center; }
.sp-stats-item .sp-stats-num { font-size: 46px; font-weight: 800; line-height: 1; }
.sp-stats-item .sp-stats-num i { font-size: 30px; margin-right: 8px; opacity: .9; }
.sp-stats-item .sp-stats-label { font-size: 15px; color: rgba(255,255,255,.9); margin-top: 12px; }

/* ============ About (关于我们) ============ */
.sp-about .sp-row { display: flex; flex-wrap: wrap; align-items: center; gap: 46px; }
.sp-about .sp-about-img { flex: 1 1 48%; border-radius: 16px; overflow: hidden; box-shadow: 0 14px 36px rgba(0,0,0,.15); aspect-ratio: 4/3; }
.sp-about .sp-about-img img { width: 100%; height: 100%; object-fit: cover; }
.sp-about .sp-about-txt { flex: 1 1 44%; }
.sp-about .sp-about-txt .sp-en { letter-spacing: 3px; font-size: 14px; color: var(--sp-primary); font-weight: 700; text-transform: uppercase; }
.sp-about .sp-about-txt h2 { font-size: 30px; font-weight: 800; color: var(--sp-text); margin: 8px 0 16px; }
.sp-about .sp-about-txt p { color: var(--sp-text2); font-size: 16px; line-height: 1.95; margin: 0 0 14px; }
.sp-points { list-style: none; padding: 0; margin: 16px 0 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sp-points li { display: flex; align-items: center; gap: 10px; color: var(--sp-text); font-size: 15px; }
.sp-points li i { color: var(--sp-primary); }

/* ============ 体育板块 (图片卡) ============ */
.sp-cats { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.sp-cat-card { position: relative; border-radius: 14px; overflow: hidden; aspect-ratio: 4/3; box-shadow: 0 6px 18px rgba(0,0,0,.12); }
.sp-cat-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.sp-cat-card:hover img { transform: scale(1.08); }
.sp-cat-card .sp-cat-mask { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,.8), transparent 62%); display: flex; flex-direction: column; justify-content: flex-end; padding: 22px; color: #fff; }
.sp-cat-card .sp-cat-mask h4 { margin: 0 0 4px; font-size: 20px; font-weight: 800; }
.sp-cat-card .sp-cat-mask span { font-size: 13px; color: rgba(255,255,255,.85); }

/* ============ News (最新资讯) ============ */
.sp-news-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 26px; }
.sp-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; border: 1px solid var(--sp-line); }
.sp-news-card:hover { transform: translateY(-5px); box-shadow: 0 14px 30px rgba(0,0,0,.12); }
.sp-news-card .sp-news-img { aspect-ratio: 16/9; overflow: hidden; background: var(--sp-update-grad); }
.sp-news-card .sp-news-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.sp-news-card:hover .sp-news-img img { transform: scale(1.06); }
.sp-news-card .sp-news-body { padding: 20px 22px; flex: 1; display: flex; flex-direction: column; }
.sp-news-card .sp-tag { align-self: flex-start; font-size: 12px; font-weight: 700; color: var(--sp-primary); background: var(--sp-sub-bg); padding: 3px 12px; border-radius: 20px; margin-bottom: 10px; }
.sp-news-card .sp-news-body h3 { font-size: 17px; font-weight: 700; margin: 0 0 10px; line-height: 1.5; }
.sp-news-card .sp-news-body h3 a { color: var(--sp-text); }
.sp-news-card .sp-news-body h3 a:hover { color: var(--sp-primary); }
.sp-news-card .sp-news-body p { font-size: 14px; color: var(--sp-text2); margin: 0 0 14px; flex: 1; }
.sp-news-meta { display: flex; gap: 14px; font-size: 12px; color: var(--sp-text2); }
.sp-news-meta i { color: var(--sp-primary); margin-right: 3px; }
.sp-news-more { text-align: center; margin-top: 40px; }
.sp-news-more a { display: inline-block; padding: 12px 34px; border: 2px solid var(--sp-primary); color: var(--sp-primary); border-radius: 30px; font-weight: 700; }
.sp-news-more a:hover { background: var(--sp-primary); color: #fff; }

/* ============ FAQ (常见问题 手风琴) ============ */
.sp-faq { max-width: 860px; margin: 0 auto; }
.sp-faq .accordion-item { border: 1px solid var(--sp-line); border-radius: 12px !important; margin-bottom: 14px; overflow: hidden; }
.sp-faq .accordion-button { font-weight: 700; font-size: 17px; color: var(--sp-text); background: #fff; box-shadow: none !important; }
.sp-faq .accordion-button:not(.collapsed) { color: var(--sp-primary); background: var(--sp-sub-bg); }
.sp-faq .accordion-button::after { filter: grayscale(1); }
.sp-faq .accordion-body { color: var(--sp-text2); font-size: 15px; line-height: 1.85; }

/* ============ CTA band (准备好开始了吗) ============ */
.sp-ctaband { background: var(--sp-update-grad); color: #fff; padding: 60px 0; text-align: center; }
.sp-ctaband h2 { margin: 0 0 10px; font-size: 30px; font-weight: 800; }
.sp-ctaband p { margin: 0 0 26px; color: rgba(255,255,255,.9); font-size: 17px; }
.sp-ctaband .sp-cta-btn { display: inline-block; background: #fff; color: var(--sp-dark2); padding: 15px 40px; border-radius: 34px; font-weight: 800; font-size: 17px; }
.sp-ctaband .sp-cta-btn:hover { transform: translateY(-2px); color: var(--sp-dark1); }

/* ============ 内页 Banner / 详情 ============ */
.sp-pagehead { background: var(--sp-update-grad); color: #fff; padding: 58px 0; text-align: center; }
.sp-pagehead h1 { margin: 0; font-size: 32px; font-weight: 800; }
.sp-pagehead p { margin: 10px 0 0; color: rgba(255,255,255,.88); }
.sp-crumb { font-size: 14px; color: var(--sp-text2); margin-bottom: 24px; }
.sp-crumb a { color: var(--sp-text2); }
.sp-crumb a:hover { color: var(--sp-primary); }
.sp-detail { max-width: 880px; margin: 0 auto; }
.sp-detail h1.sp-detail-title { font-size: 30px; font-weight: 800; color: var(--sp-text); margin: 0 0 16px; line-height: 1.4; }
.sp-detail .sp-detail-meta { display: flex; flex-wrap: wrap; gap: 18px; color: var(--sp-text2); font-size: 14px; padding-bottom: 18px; border-bottom: 1px solid var(--sp-line); margin-bottom: 26px; }
.sp-detail .sp-detail-meta i { color: var(--sp-primary); margin-right: 4px; }
.sp-detail-body { font-size: 17px; line-height: 1.95; color: #3a3f47; word-break: break-word; }
.sp-detail-body img { border-radius: 10px; margin: 16px auto; height: auto; }
.sp-back { display: inline-block; margin-top: 34px; padding: 11px 24px; background: var(--sp-primary); color: #fff; border-radius: 8px; }
.sp-back:hover { background: var(--sp-primary-dark); color: #fff; }

/* ============ Pagination / search / tags ============ */
.sp-page { display: flex; justify-content: center; gap: 8px; margin-top: 40px; flex-wrap: wrap; }
.sp-page a, .sp-page span { padding: 8px 14px; border: 1px solid var(--sp-line); border-radius: 8px; color: var(--sp-text2); font-size: 14px; }
.sp-page .active, .sp-page a:hover { background: var(--sp-primary); color: #fff; border-color: var(--sp-primary); }
.sp-searchbar { display: flex; gap: 10px; max-width: 640px; margin: 0 auto 40px; }
.sp-searchbar input { flex: 1; padding: 13px 18px; border: 1px solid var(--sp-line); border-radius: 10px; font-size: 16px; }
.sp-searchbar button { padding: 13px 30px; background: var(--sp-primary); color: #fff; border: 0; border-radius: 10px; font-weight: 700; cursor: pointer; }
.sp-searchbar button:hover { background: var(--sp-primary-dark); }
.sp-tagcloud { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; max-width: 880px; margin: 0 auto; }
.sp-tagcloud a { padding: 8px 18px; background: var(--sp-sub-bg); color: var(--sp-primary); border-radius: 24px; font-size: 14px; border: 1px solid transparent; }
.sp-tagcloud a:hover { background: var(--sp-primary); color: #fff; }

/* ============ Footer (深色 4 列) ============ */
.sp-footer { background: var(--sp-dark1); color: rgba(255,255,255,.7); padding: 58px 0 24px; }
.sp-footer .sp-footer-grid { display: grid; grid-template-columns: 2.2fr 1fr 1fr 1.4fr; gap: 34px; margin-bottom: 32px; }
.sp-footer h5 { color: #fff; font-size: 16px; font-weight: 700; margin: 0 0 18px; }
.sp-footer .sp-brand-text { font-size: 21px; font-weight: 800; color: #fff; margin-bottom: 14px; }
.sp-footer .sp-brand-text i { color: var(--sp-cta); margin-right: 6px; }
.sp-footer p { font-size: 14px; line-height: 1.9; margin: 0; }
.sp-footer ul { list-style: none; padding: 0; margin: 0; }
.sp-footer ul li { margin-bottom: 11px; }
.sp-footer ul li a { color: rgba(255,255,255,.68); font-size: 14px; }
.sp-footer ul li a:hover { color: var(--sp-cta); }
.sp-footer .sp-contact li { display: flex; gap: 10px; align-items: flex-start; }
.sp-footer .sp-contact i { color: var(--sp-cta); margin-top: 4px; }
.sp-footer .sp-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); line-height: 1.9; }

/* ============ 返回顶部 ============ */
.sp-totop { position: fixed; right: 22px; bottom: 26px; width: 46px; height: 46px; border-radius: 10px; background: var(--sp-primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 18px; z-index: 900; box-shadow: 0 6px 18px rgba(0,0,0,.2); }
.sp-totop:hover { background: var(--sp-primary-dark); color: #fff; }

/* ============ Responsive ============ */
@media (max-width: 992px) {
    .sp-nav { display: none; }
    .sp-hero { min-height: 460px; }
    .sp-hero h1 { font-size: 32px; }
    .sp-about .sp-row { flex-direction: column; }
    .sp-footer .sp-footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .sp-section { padding: 48px 0; }
    .sp-head h2 { font-size: 24px; }
    .sp-hero h1 { font-size: 27px; }
    .sp-hero p { font-size: 15px; }
    .sp-stats-item .sp-stats-num { font-size: 34px; }
    .sp-points { grid-template-columns: 1fr; }
    .sp-footer .sp-footer-grid { grid-template-columns: 1fr; }
}