/* ========== 产品详情页共用样式 ==========
   继承主页主色：#0d1b3e / #1e5799 / #2980b9 / #6db3f2
   用法：<link rel="stylesheet" href="../css/product.css">
*/

/* --- 面包屑 --- */
.breadcrumb{background:#0d1b3e;color:#fff;padding:14px 20px}
.breadcrumb .wrap{max-width:1100px;margin:0 auto;display:flex;align-items:center;gap:10px;font-size:.9em}
.breadcrumb a{color:#6db3f2;text-decoration:none}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.4}
.breadcrumb .current{color:#fff;font-weight:600}

/* --- 产品页 hero --- */
.prod-hero{background:linear-gradient(135deg,#0d1b3e 0%,#1a3a6b 45%,#1e5799 75%,#2980b9 100%);color:#fff;padding:60px 20px 70px;position:relative;overflow:hidden}
.prod-hero::before{content:'';position:absolute;top:-50%;right:-10%;width:500px;height:500px;background:radial-gradient(circle,rgba(109,179,242,.18) 0%,transparent 70%);pointer-events:none}
.prod-hero .wrap{max-width:1100px;margin:0 auto;position:relative;z-index:1}
.prod-hero .breadcrumb-row{display:flex;align-items:center;gap:8px;font-size:.85em;margin-bottom:30px}
.prod-hero .breadcrumb-row a{color:rgba(255,255,255,.7);text-decoration:none}
.prod-hero .breadcrumb-row a:hover{color:#fff}
.prod-hero .breadcrumb-row .sep{opacity:.4}
.prod-hero .breadcrumb-row .current{color:#fff;font-weight:600}
.prod-hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.prod-hero h1{font-size:2.2em;font-weight:700;letter-spacing:2px;margin-bottom:12px}
.prod-hero .sub{color:rgba(255,255,255,.75);font-size:1em;line-height:1.8;margin-bottom:20px}
.prod-hero .tags{display:flex;flex-wrap:wrap;gap:8px}
.prod-hero .tag{background:rgba(109,179,242,.2);border:1px solid rgba(109,179,242,.4);color:#6db3f2;padding:3px 12px;border-radius:15px;font-size:.8em;font-weight:500}

/* --- 图片画廊（轮播）--- */
.gallery{background:#fff;padding:50px 20px}
.gallery .wrap{max-width:1100px;margin:0 auto}
.gallery h2{font-size:1.6em;color:#0d1b3e;margin-bottom:20px;font-weight:700}
.gallery-main{position:relative;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.1);background:#f5f5f5}
.gallery-main img{width:100%;height:420px;object-fit:contain;background:#fff;display:block}
.gallery-nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(13,27,62,.55);color:#fff;border:none;width:42px;height:42px;border-radius:50%;font-size:1.1em;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s}
.gallery-nav:hover{background:#1e5799}
.gallery-nav.prev{left:15px}
.gallery-nav.next{right:15px}
.gallery-thumbs{display:flex;gap:10px;margin-top:15px;overflow-x:auto;padding-bottom:8px}
.gallery-thumbs img{height:70px;width:90px;object-fit:cover;border-radius:8px;cursor:pointer;opacity:.55;border:2px solid transparent;transition:all .25s;flex-shrink:0;background:#fff}
.gallery-thumbs img.active,.gallery-thumbs img:hover{opacity:1;border-color:#1e5799}
.gallery-caption{text-align:center;color:#999;font-size:.85em;margin-top:12px}

/* --- 规格参数表 --- */
.specs{background:#f7f9fc;padding:70px 20px}
.specs .wrap{max-width:1100px;margin:0 auto}
.specs h2{font-size:1.8em;color:#0d1b3e;margin-bottom:25px;font-weight:700}
.spec-table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 15px rgba(0,0,0,.05)}
.spec-table th,.spec-table td{padding:14px 18px;text-align:left;font-size:.92em;border-bottom:1px solid #eef1f5}
.spec-table th{background:#0d1b3e;color:#fff;font-weight:600;width:30%;min-width:160px}
.spec-table tr:last-child td,.spec-table tr:last-child th{border-bottom:none}
.spec-table td{color:#444}
.spec-table tr:nth-child(even) td{background:#fafbfc}
.spec-table .highlight{color:#1e5799;font-weight:600}

/* --- 应用领域 --- */
.apps{background:#fff;padding:70px 20px}
.apps .wrap{max-width:1100px;margin:0 auto}
.apps h2{font-size:1.8em;color:#0d1b3e;margin-bottom:10px;font-weight:700;text-align:center}
.apps .lead{text-align:center;color:#888;margin-bottom:35px;font-size:.95em}
.app-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.app-card{background:#f7f9fc;border:1px solid #e8edf5;border-radius:12px;padding:24px 20px;transition:all .3s}
.app-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,.08)}
.app-card .icon{font-size:1.8em;margin-bottom:10px}
.app-card h4{color:#0d1b3e;font-size:1em;margin-bottom:8px}
.app-card p{color:#777;font-size:.88em;line-height:1.7}

/* --- 机台兼容 --- */
.compat{background:#0d1b3e;color:#fff;padding:60px 20px}
.compat .wrap{max-width:1100px;margin:0 auto;text-align:center}
.compat h2{font-size:1.6em;margin-bottom:12px;font-weight:700}
.compat .sub{color:rgba(255,255,255,.6);margin-bottom:30px;font-size:.9em}
.compat-list{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}
.compat-item{background:rgba(255,255,255,.08);border:1px solid rgba(109,179,242,.3);color:#fff;padding:10px 20px;border-radius:8px;font-size:.9em;font-weight:500}
.compat-item small{display:block;color:rgba(255,255,255,.55);font-size:.75em;margin-top:3px;font-weight:400}

/* --- 资料下载区 --- */
.downloads{background:#f7f9fc;padding:70px 20px}
.downloads .wrap{max-width:1100px;margin:0 auto}
.downloads h2{font-size:1.8em;color:#0d1b3e;margin-bottom:8px;font-weight:700}
.downloads .lead{color:#888;margin-bottom:30px;font-size:.95em}
.dl-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:15px}
.dl-card{background:#fff;border:1px solid #e8edf5;border-radius:12px;padding:20px;display:flex;align-items:center;gap:14px;text-decoration:none;transition:all .3s;box-shadow:0 2px 10px rgba(0,0,0,.03)}
.dl-card:hover{border-color:#1e5799;transform:translateY(-2px);box-shadow:0 6px 20px rgba(30,87,153,.12)}
.dl-card .dl-icon{width:44px;height:44px;background:linear-gradient(135deg,#1e5799,#2980b9);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.2em;flex-shrink:0}
.dl-card .dl-info h4{color:#0d1b3e;font-size:.95em;margin-bottom:3px}
.dl-card .dl-info p{color:#999;font-size:.8em}

/* --- 视频区 --- */
.video-section{background:#fff;padding:70px 20px}
.video-section .wrap{max-width:1100px;margin:0 auto}
.video-section h2{font-size:1.8em;color:#0d1b3e;margin-bottom:8px;font-weight:700}
.video-section .lead{color:#888;margin-bottom:30px;font-size:.95em}
.video-frame{max-width:800px;margin:0 auto;border-radius:12px;overflow:hidden;box-shadow:0 8px 30px rgba(0,0,0,.12);background:#000}
.video-frame video{width:100%;display:block}
.video-note{text-align:center;color:#999;font-size:.85em;margin-top:15px}

/* --- CTA 联系区 --- */
.cta{background:linear-gradient(135deg,#0d1b3e,#1e5799);color:#fff;padding:60px 20px;text-align:center}
.cta .wrap{max-width:700px;margin:0 auto}
.cta h2{font-size:1.8em;margin-bottom:12px;font-weight:700}
.cta p{color:rgba(255,255,255,.8);margin-bottom:28px;line-height:1.8}
.cta-buttons{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cta-btn{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);color:#fff;padding:13px 26px;border-radius:10px;font-size:.95em;font-weight:500;text-decoration:none;transition:all .3s}
.cta-btn:hover{background:#6db3f2;border-color:#6db3f2;transform:translateY(-2px)}
.cta-btn.primary{background:#6db3f2;border-color:#6db3f2}
.cta-btn.primary:hover{background:#fff;color:#0d1b3e}

/* --- 相关产品 --- */
.related{background:#f7f9fc;padding:70px 20px}
.related .wrap{max-width:1100px;margin:0 auto}
.related h2{font-size:1.8em;color:#0d1b3e;margin-bottom:25px;font-weight:700;text-align:center}
.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.related-card{background:#fff;border-radius:12px;overflow:hidden;text-decoration:none;box-shadow:0 2px 12px rgba(0,0,0,.05);transition:all .3s;display:block}
.related-card:hover{transform:translateY(-4px);box-shadow:0 8px 25px rgba(0,0,0,.1)}
.related-card img{width:100%;height:140px;object-fit:cover;background:#f0f2f5}
.related-card .rc-body{padding:16px}
.related-card .rc-body h4{color:#0d1b3e;font-size:1em;margin-bottom:6px}
.related-card .rc-body p{color:#999;font-size:.82em;line-height:1.6}
.related-card .rc-body .more{color:#1e5799;font-size:.85em;font-weight:600;margin-top:10px;display:inline-block}

/* --- 页面 footer 复用主页样式（简化版）--- */
.prod-footer{background:#0d1b3e;color:#888;padding:40px 20px;text-align:center}
.prod-footer a{color:#888;text-decoration:none;margin:0 10px;font-size:.85em}
.prod-footer a:hover{color:#6db3f2}
.prod-footer .copy{margin-top:18px;font-size:.78em;color:#555}
.prod-footer .links{margin-bottom:10px}

/* --- 响应式 --- */
@media(max-width:768px){
  .prod-hero-grid{grid-template-columns:1fr;gap:25px}
  .prod-hero h1{font-size:1.6em}
  .gallery-main img{height:260px}
  .spec-table th,.spec-table td{padding:10px 12px;font-size:.85em}
  .spec-table th{width:40%}
  .cta-buttons{flex-direction:column;align-items:stretch}
}

/* --- 缺失素材占位 --- */
.img-missing{height:420px;display:flex;align-items:center;justify-content:center;color:#ccc;font-size:.95em;background:#f5f7fa;background-image:linear-gradient(135deg,#f0f2f5,#e8edf5)}