/* 模板5 — 深蓝黄金风 (MK体育Official) */
:root{
  --primary:#1E40AF;--primary-dark:#1e3a8a;--primary-light:rgba(30,64,175,.1);
  --gold:#EAB308;--gold-dark:#ca9a06;--gold-light:rgba(234,179,8,.1);
  --bg:#F8FAFC;--bg-white:#ffffff;--bg-dark:#0f172a;--bg-dark2:#1e293b;
  --text:#0f172a;--text-light:#64748b;--border:#e2e8f0;
  --radius:12px;--shadow:0 4px 20px rgba(30,64,175,.08);--shadow-lg:0 12px 40px rgba(30,64,175,.15);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Noto Sans SC',sans-serif;background:var(--bg-white);color:var(--text);line-height:1.7}
a{color:var(--primary);text-decoration:none;transition:all .3s}
a:hover{color:var(--primary-dark)}
img{max-width:100%;height:auto}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* HEADER */
.header{background:var(--bg-white);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:1000;box-shadow:0 1px 8px rgba(0,0,0,.05)}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:72px;max-width:1200px;margin:0 auto;padding:0 20px}
.logo__img-placeholder{width:36px;height:36px;background:var(--primary);border-radius:8px;display:inline-flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:.9rem;margin-right:8px}
.logo__text{font-size:1.2rem;font-weight:800;color:var(--text);display:flex;align-items:center}
.logo__text span{color:var(--gold)}
.nav__links{display:flex;gap:4px;list-style:none}
.nav__link{padding:8px 16px;border-radius:8px;color:var(--text-light);font-size:.9rem;font-weight:500;transition:all .25s}
.nav__link:hover,.nav__link--active{background:var(--primary-light);color:var(--primary)}
.nav__actions{display:flex;gap:10px}
.btn-dl{padding:9px 20px;border-radius:8px;border:1.5px solid var(--primary);color:var(--primary);font-size:.9rem;font-weight:600;transition:all .3s}
.btn-dl:hover{background:var(--primary);color:#fff}
.btn-join{padding:9px 20px;border-radius:8px;background:var(--gold);color:var(--bg-dark);font-weight:700;font-size:.9rem;transition:all .3s}
.btn-join:hover{background:var(--gold-dark)}

/* HERO */
.hero{background:var(--primary);color:#fff;padding:80px 0;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(30,64,175,.9),rgba(30,58,138,.95));z-index:0}
.hero::after{content:'';position:absolute;top:-80px;right:-80px;width:500px;height:500px;background:radial-gradient(circle,rgba(234,179,8,.15),transparent 65%);border-radius:50%}
.hero__inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.hero__signal{display:inline-flex;align-items:center;gap:8px;background:rgba(234,179,8,.15);border:1px solid rgba(234,179,8,.4);color:var(--gold);font-size:.8rem;font-weight:700;padding:5px 14px;border-radius:20px;margin-bottom:18px;letter-spacing:.5px}
.hero__signal::before{content:'●';color:var(--gold);animation:pulse 1.5s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero__title{font-size:clamp(1.8rem,4vw,2.9rem);font-weight:800;line-height:1.2;margin-bottom:16px}
.hero__title span{color:var(--gold)}
.hero__sub{font-size:1rem;opacity:.85;max-width:480px;margin-bottom:32px;line-height:1.8}
.hero__btns{display:flex;gap:12px;flex-wrap:wrap}
.btn--hero-gold{background:var(--gold);color:var(--bg-dark);padding:13px 28px;border-radius:var(--radius);font-weight:700;font-size:.95rem;display:inline-flex;align-items:center;gap:8px;transition:all .3s}
.btn--hero-gold:hover{background:var(--gold-dark);transform:translateY(-2px)}
.btn--hero-white{border:1.5px solid rgba(255,255,255,.5);color:#fff;padding:13px 28px;border-radius:var(--radius);font-weight:600;font-size:.95rem;display:inline-flex;align-items:center;gap:8px;transition:all .3s}
.btn--hero-white:hover{border-color:#fff;background:rgba(255,255,255,.1);color:#fff}
/* 右侧数据板 */
.hero__stats{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.hero__stat-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:20px;text-align:center;backdrop-filter:blur(10px)}
.hero__stat-num{font-size:1.8rem;font-weight:800;color:var(--gold);line-height:1}
.hero__stat-label{font-size:.8rem;opacity:.8;margin-top:6px}

/* FEATURES STRIP */
.features-strip{background:var(--bg-white);box-shadow:var(--shadow-lg);padding:0;position:relative;z-index:1}
.features-strip__inner{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.strip-item{padding:28px 20px;text-align:center;border-right:1px solid var(--border);transition:all .3s}
.strip-item:last-child{border-right:none}
.strip-item:hover{background:var(--primary-light)}
.strip-icon{font-size:1.6rem;margin-bottom:8px}
.strip-title{font-weight:700;font-size:.95rem;color:var(--text);margin-bottom:4px}
.strip-desc{font-size:.8rem;color:var(--text-light)}

/* SECTION */
.section{padding:64px 0}
.section--white{background:var(--bg-white)}
.section--gray{background:var(--bg)}
.section--dark{background:var(--bg-dark);color:#fff}
.section__hd{margin-bottom:44px;text-align:center}
.section__title{font-size:1.7rem;font-weight:800;margin-bottom:8px}
.section__title--light{color:#fff}
.section__title span{color:var(--primary)}
.section__title--light span{color:var(--gold)}
.section__sub{color:var(--text-light);font-size:.95rem}
.section__sub--light{color:rgba(255,255,255,.7)}

/* 特性卡片 */
.feature-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.feat-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:all .3s;position:relative;overflow:hidden}
.feat-card::before{content:attr(data-num);position:absolute;top:-10px;right:16px;font-size:5rem;font-weight:800;color:var(--primary);opacity:.05;line-height:1}
.feat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary)}
.feat-icon{width:50px;height:50px;background:var(--primary-light);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:16px}
.feat-title{font-weight:700;font-size:1rem;margin-bottom:8px;color:var(--text)}
.feat-desc{color:var(--text-light);font-size:.9rem;line-height:1.7}

/* 新闻三列 */
.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.news-card{background:var(--bg-white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:all .3s}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.news-card__cover{height:160px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));display:flex;align-items:center;justify-content:center;font-size:2.5rem}
.news-card__body{padding:18px}
.news-card__cat{display:inline-block;background:var(--gold-light);color:var(--gold-dark);font-size:.72rem;font-weight:700;padding:2px 10px;border-radius:20px;margin-bottom:8px}
.news-card__title{font-size:.93rem;font-weight:700;color:var(--text);line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__title a{color:var(--text)}
.news-card__title a:hover{color:var(--primary)}
.news-card__meta{font-size:.78rem;color:var(--text-light)}

/* 品牌信任 */
.trust-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.trust-item{text-align:center;padding:24px}
.trust-icon{font-size:2rem;margin-bottom:10px}
.trust-title{font-weight:700;color:#fff;margin-bottom:6px}
.trust-desc{font-size:.85rem;opacity:.7;color:rgba(255,255,255,.8)}

/* FOOTER */
.footer{background:var(--bg-dark2);color:#94a3b8;padding:48px 0 22px}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;margin-bottom:36px}
.footer__brand{font-size:1.2rem;font-weight:800;color:#fff;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.footer__brand span{color:var(--gold)}
.footer__desc{font-size:.85rem;line-height:1.8}
.footer__heading{color:#fff;font-weight:700;font-size:.9rem;margin-bottom:14px}
.footer__links{list-style:none;display:flex;flex-direction:column;gap:9px}
.footer__links a{color:#94a3b8;font-size:.85rem;transition:color .3s}
.footer__links a:hover{color:var(--gold)}
.footer__bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:20px;text-align:center;font-size:.8rem}

/* 文章 */
.article-header{background:var(--primary);color:#fff;padding:52px 0 40px}
.article-cat{display:inline-block;background:rgba(234,179,8,.2);color:var(--gold);border:1px solid rgba(234,179,8,.4);font-size:.75rem;font-weight:700;padding:3px 12px;border-radius:20px;margin-bottom:12px}
.article-title{font-size:2rem;font-weight:800;line-height:1.3;margin-bottom:14px}
.article-meta{display:flex;gap:16px;font-size:.82rem;opacity:.85;flex-wrap:wrap}
.article-body{max-width:860px;margin:48px auto;padding:0 20px}
.article-body p{margin-bottom:18px;line-height:1.9;color:#374151}
.article-body h2{font-size:1.3rem;font-weight:700;margin:32px 0 12px;color:var(--text)}
.breadcrumb{font-size:.82rem;opacity:.8;margin-bottom:14px}
.breadcrumb a{color:rgba(255,255,255,.8)}
.breadcrumb a:hover{color:#fff}
.breadcrumb span{color:#fff}

@media(max-width:768px){
  .hero__inner,.footer__grid{grid-template-columns:1fr}
  .features-strip__inner{grid-template-columns:repeat(2,1fr)}
  .hero__stats{grid-template-columns:1fr 1fr}
  .nav__links,.nav__actions{display:none}
  .article-title{font-size:1.5rem}
}
@media(max-width:480px){
  .features-strip__inner{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
}