/* =========================================================
   尚奥体育 · 现代场馆主题 (sport-theme.css)
   深炭灰 + 霓虹青 + 球场橙 | 体育馆视觉体系
   ========================================================= */

:root{
  --bg:#0c0e13;
  --bg-soft:#12161f;
  --panel:#161b26;
  --panel-2:#1d2433;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --ink:#eef2f7;
  --muted:#98a3b5;
  --cyan:#25e6ff;
  --cyan-2:#00b4d8;
  --orange:#ff6a2c;
  --orange-2:#ff8c42;
  --green:#2ee6a6;
  --radius:14px;
  --radius-sm:10px;
  --maxw:1200px;
  --shadow:0 18px 50px rgba(0,0,0,.45);
  --glow-cyan:0 0 0 1px rgba(37,230,255,.35), 0 10px 40px rgba(37,230,255,.18);
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans CN",system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.2;font-weight:800;letter-spacing:.5px;}

.container{width:min(var(--maxw),92vw);margin:0 auto;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  padding:.85em 1.7em;border-radius:999px;font-weight:700;font-size:15px;
  cursor:pointer;transition:.25s;border:1px solid transparent;letter-spacing:1px;
}
.btn-primary{
  background:linear-gradient(135deg,var(--cyan),var(--cyan-2));
  color:#04222b;box-shadow:var(--glow-cyan);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(37,230,255,.6),0 14px 50px rgba(37,230,255,.32);}
.btn-ghost{border-color:var(--line-strong);color:var(--ink);background:rgba(255,255,255,.04);}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(12,14,19,.72);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;}
.brand img{height:42px;width:auto;}
.brand-name{font-weight:800;font-size:19px;line-height:1;display:flex;flex-direction:column;}
.brand-name small{font-size:10px;letter-spacing:3px;color:var(--cyan);font-weight:600;margin-top:3px;}
.site-nav{display:flex;gap:6px;margin-left:auto;}
.site-nav a{
  padding:9px 15px;border-radius:9px;font-weight:600;font-size:15px;color:var(--muted);transition:.2s;position:relative;
}
.site-nav a:hover,.site-nav a.active{color:var(--ink);}
.site-nav a.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
}
.nav-cta{
  padding:.6em 1.3em;border-radius:999px;font-weight:700;font-size:14px;
  background:linear-gradient(135deg,var(--orange),var(--orange-2));color:#1a0d05;white-space:nowrap;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(255,106,44,.35);}
.nav-toggle{display:none;background:none;border:0;color:var(--ink);font-size:26px;cursor:pointer;}

/* ---------- HERO ---------- */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.05);}
.hero-bg::after{content:"";position:absolute;inset:0;background:
  radial-gradient(120% 90% at 20% 10%,rgba(37,230,255,.18),transparent 55%),
  radial-gradient(120% 90% at 90% 90%,rgba(255,106,44,.18),transparent 55%),
  linear-gradient(180deg,rgba(12,14,19,.55),rgba(12,14,19,.92));}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,14,19,.35),var(--bg) 96%);}
.hero-inner{position:relative;z-index:2;padding:90px 0;text-align:center;}
.hero-kicker{
  display:inline-block;font-size:13px;letter-spacing:6px;color:var(--cyan);
  border:1px solid rgba(37,230,255,.35);padding:6px 16px;border-radius:999px;margin-bottom:26px;
}
.hero-title{font-size:clamp(34px,5.4vw,68px);font-weight:900;line-height:1.1;}
.hero-title b{
  background:linear-gradient(120deg,var(--cyan),var(--orange));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{max-width:680px;margin:24px auto 0;color:var(--muted);font-size:17px;}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:38px;}
.hero-stats{
  display:flex;gap:14px;justify-content:center;flex-wrap:wrap;
  margin-top:60px;padding-top:36px;border-top:1px solid var(--line);
}
.hero-stats li{min-width:150px;padding:0 22px;border-right:1px solid var(--line);}
.hero-stats li:last-child{border-right:0;}
.hero-stats b{display:block;font-size:38px;font-weight:900;color:var(--ink);}
.hero-stats b span{font-size:18px;color:var(--cyan);margin-left:2px;}
.hero-stats em{font-style:normal;color:var(--muted);font-size:14px;letter-spacing:1px;}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0;position:relative;}
.section-alt{background:linear-gradient(180deg,var(--bg-soft),var(--bg));}
.sec-head{text-align:center;max-width:720px;margin:0 auto 56px;}
.sec-kicker{display:inline-block;font-size:12px;letter-spacing:5px;color:var(--orange);margin-bottom:14px;font-weight:700;}
.sec-title{font-size:clamp(26px,3.4vw,42px);}
.sec-desc{color:var(--muted);margin-top:16px;font-size:16px;}

/* ---------- 运动场景卡片 ---------- */
.card-grid{display:grid;gap:22px;}
.sport-grid{grid-template-columns:repeat(3,1fr);}
.sport-card{
  position:relative;padding:34px 28px;border-radius:var(--radius);
  background:linear-gradient(160deg,var(--panel),var(--bg-soft));
  border:1px solid var(--line);overflow:hidden;transition:.3s;
}
.sport-card::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--orange));transition:width .35s;
}
.sport-card:hover{border-color:rgba(37,230,255,.4);transform:translateY(-6px);box-shadow:var(--shadow);}
.sport-card:hover::before{width:100%;}
.sport-ico{
  width:62px;height:62px;display:grid;place-items:center;font-size:30px;border-radius:14px;
  background:rgba(37,230,255,.1);border:1px solid rgba(37,230,255,.25);margin-bottom:18px;
}
.sport-card h3{font-size:21px;margin-bottom:8px;}
.sport-card p{color:var(--muted);font-size:14.5px;margin:0;}

/* ---------- 工程案例 ---------- */
.case-grid{grid-template-columns:repeat(4,1fr);}
.case-card{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);}
.case-card img{height:220px;width:100%;object-fit:cover;transition:.4s;}
.case-card:hover img{transform:scale(1.08);}
.case-card figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:16px 18px;font-weight:700;font-size:15px;
  background:linear-gradient(180deg,transparent,rgba(8,10,14,.92));
}
.case-card::after{
  /*content:"查看";*/
  position:absolute;inset:0;display:grid;place-items:center;
  background:rgba(12,14,19,.55);color:var(--cyan);font-weight:800;letter-spacing:3px;
  opacity:0;transition:.3s;
}
.case-card:hover::after{opacity:1;}

/* ---------- 关于 ---------- */
.about-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:48px;align-items:center;}
.about-grid h2{font-size:clamp(26px,3vw,38px);margin-bottom:18px;}
.about-grid p{color:var(--muted);margin:0 0 26px;}
.feat-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.feat-list li{
  padding:18px 20px;border-radius:var(--radius-sm);background:var(--panel);border:1px solid var(--line);
  font-weight:600;position:relative;padding-left:46px;
}
.feat-list li::before{
  content:"✓";position:absolute;left:16px;top:50%;transform:translateY(-50%);
  width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:12px;
  background:var(--cyan);color:#04222b;font-weight:900;
}

/* ---------- CTA ---------- */
.section-cta{text-align:center;}
.cta-inner{
  max-width:820px;margin:0 auto;padding:64px 32px;border-radius:24px;
  background:
    radial-gradient(120% 140% at 50% 0%,rgba(37,230,255,.12),transparent 60%),
    linear-gradient(160deg,var(--panel-2),var(--bg-soft));
  border:1px solid var(--line);position:relative;overflow:hidden;
}
.cta-inner::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;
  background:linear-gradient(90deg,var(--cyan),var(--orange),var(--cyan));
}
.cta-inner h2{font-size:clamp(24px,3vw,36px);}
.cta-inner p{color:var(--muted);margin:14px 0 30px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--line);padding:64px 0 28px;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;}
.site-footer h4{font-size:16px;margin-bottom:18px;color:var(--ink);}
.site-footer p{color:var(--muted);font-size:14px;margin:0 0 10px;}
.foot-grid a{color:var(--muted);display:block;padding:5px 0;font-size:14px;transition:.2s;}
.foot-grid a:hover{color:var(--cyan);padding-left:6px;}
.foot-bottom{text-align:center;color:var(--muted);font-size:13px;margin-top:44px;padding-top:22px;border-top:1px solid var(--line);}

/* ---------- 响应式 ---------- */
/* ===== 内页通用 ===== */
.subhero{position:relative;padding:118px 0 74px;text-align:center;overflow:hidden;
  background:
    radial-gradient(120% 100% at 50% 0%,rgba(37,230,255,.10),transparent 60%),
    linear-gradient(160deg,var(--panel-2),var(--bg-soft));
  border-bottom:1px solid var(--line);}
.subhero::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;
  background:linear-gradient(90deg,var(--cyan),var(--orange),var(--cyan));}
.subhero h1{font-size:clamp(28px,4vw,46px);}
.subhero .crumb{color:var(--muted);font-size:14px;margin-top:14px;letter-spacing:1px;}
.subhero .crumb a:hover{color:var(--cyan);}

/* 产品/结构卡片 */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.prod-card{background:linear-gradient(160deg,var(--panel),var(--bg-soft));border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;transition:.3s;}
.prod-card:hover{border-color:rgba(37,230,255,.4);transform:translateY(-6px);box-shadow:var(--shadow);}
.prod-card img{height:200px;width:100%;object-fit:cover;}
.prod-card h3{font-size:17px;padding:16px 18px 20px;font-weight:700;}

/* 小栏目标题 */
.col-title{font-size:clamp(22px,2.6vw,30px);margin:0 0 26px;display:flex;align-items:center;gap:12px;}
.col-title::before{content:"";width:5px;height:24px;border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--orange));}

/* 新闻列表 */
.news-grid{display:grid;grid-template-columns:1.7fr 1fr;gap:40px;align-items:start;}
.news-list{display:grid;gap:18px;}
.news-item{display:flex;gap:18px;padding:16px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--panel);transition:.25s;}
.news-item:hover{border-color:rgba(37,230,255,.4);transform:translateX(4px);}
.news-item img{width:170px;height:118px;object-fit:cover;border-radius:8px;flex:none;}
.news-item h3{font-size:17px;margin:0 0 8px;}
.news-item p{color:var(--muted);font-size:14px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item .date{color:var(--cyan);font-size:13px;margin-top:8px;display:block;}
.news-side h4{font-size:16px;margin-bottom:14px;}
.news-side ul li{border-bottom:1px solid var(--line);}
.news-side ul a{display:flex;justify-content:space-between;gap:10px;padding:11px 0;color:var(--muted);font-size:14px;transition:.2s;}
.news-side ul a:hover{color:var(--cyan);padding-left:6px;}
.news-side ul a span{color:var(--muted);font-size:12px;flex:none;}

/* 分页（TP5 render 输出在 #pages 内） */
#pages{display:flex;justify-content:center;gap:8px;margin-top:40px;flex-wrap:wrap;}
#pages a,#pages span{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;
  padding:0 12px;border-radius:10px;border:1px solid var(--line);color:var(--muted);font-size:14px;transition:.2s;}
#pages a:hover{border-color:var(--cyan);color:var(--cyan);}
#pages .active,#pages b,#pages span.active{background:linear-gradient(135deg,var(--cyan),var(--cyan-2));
  color:#04222b;border-color:transparent;font-weight:700;}

/* 详情页 */
.detail{max-width:880px;margin:0 auto;}
.detail h1{font-size:clamp(24px,3vw,34px);margin-bottom:14px;}
.detail .meta{color:var(--muted);font-size:14px;margin-bottom:26px;padding-bottom:18px;border-bottom:1px solid var(--line);}
.detail .lead-img{width:100%;border-radius:var(--radius);border:1px solid var(--line);margin-bottom:26px;}
.detail .content{font-size:16px;color:#cdd5e1;line-height:1.95;}
.detail .content img{max-width:100%;border-radius:10px;margin:16px 0;}
.detail-nav{display:flex;justify-content:space-between;gap:16px;margin-top:40px;padding-top:24px;
  border-top:1px solid var(--line);flex-wrap:wrap;}
.detail-nav a{color:var(--muted);font-size:14px;transition:.2s;}
.detail-nav a:hover{color:var(--cyan);}

/* 解决方案网格 */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}

@media (max-width:980px){
  .sport-grid,.prod-grid,.sol-grid{grid-template-columns:repeat(2,1fr);}
  .case-grid{grid-template-columns:repeat(2,1fr);}
  .about-grid{grid-template-columns:1fr;gap:32px;}
  .news-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:680px){
  .site-nav,.nav-cta{display:none;}
  .site-nav.open{
    display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;
    background:var(--bg-soft);border-bottom:1px solid var(--line);padding:14px;gap:4px;
  }
  .nav-toggle{display:block;margin-left:auto;}
  .sport-grid,.case-grid,.feat-list,.prod-grid,.sol-grid{grid-template-columns:1fr;}
  .news-item{flex-direction:column;}
  .news-item img{width:100%;height:180px;}
  .hero-stats li{min-width:120px;flex:1;}
  .section{padding:64px 0;}
}