/* ============================================================
   爱云软件中心 - 统一样式
   深蓝主色 + 橙色点缀
   ============================================================ */
:root{
  --primary:#1e3a5f;
  --primary-dark:#14273f;
  --primary-2:#2a4d7a;
  --accent:#e8833a;
  --accent-dark:#d6712c;
  --green:#2e8b57;
  --bg:#f5f7fa;
  --card:#ffffff;
  --text:#333a45;
  --text-light:#6b7480;
  --border:#e3e8ef;
  --radius:12px;
}
*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.75;}
img{max-width:100%;}
a{color:var(--primary);text-decoration:none;}
a:hover{text-decoration:underline;}

/* ---- 顶部导航 ---- */
.topbar{
  background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 60%,var(--primary-2) 100%);
  color:#fff;
}
.topbar-inner{max-width:1080px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;}
.brand{font-size:20px;font-weight:700;letter-spacing:1px;color:#fff;display:flex;align-items:center;gap:10px;}
.brand .logo{height:32px;width:auto;border-radius:6px;display:inline-block;object-fit:contain;}
.brand a{color:#fff;}
.brand a:hover{text-decoration:none;}
.nav{display:flex;gap:18px;font-size:14px;}
.nav a{color:rgba(255,255,255,.85);}
.nav a:hover{color:#fff;text-decoration:none;}
.nav a.on{color:var(--accent);font-weight:600;}

/* ---- 页面容器 ---- */
.wrap{max-width:1080px;margin:0 auto;padding:30px 20px 60px;}

/* ---- 列表页 Hero ---- */
.hero{text-align:center;padding:46px 20px 20px;}
.hero h1{font-size:30px;color:var(--primary-dark);}
.hero p{color:var(--text-light);font-size:15px;margin-top:10px;max-width:640px;margin-left:auto;margin-right:auto;}

/* ---- 商品卡片网格 ---- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;margin-top:30px;}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:.2s;display:flex;flex-direction:column;
  box-shadow:0 2px 10px rgba(20,39,63,.05);
}
.card:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(20,39,63,.12);border-color:#c9d4e3;}
.card-thumb{height:150px;display:flex;align-items:center;justify-content:center;font-size:44px;color:#fff;position:relative;}
.card-body{padding:16px 18px 20px;flex:1;display:flex;flex-direction:column;}
.card-body h3{font-size:17px;color:var(--primary);}
.card-body .tag{display:inline-block;background:#eef4fb;color:var(--primary-2);font-size:12px;padding:2px 10px;border-radius:12px;margin-top:6px;}
.card-body p{font-size:13.5px;color:var(--text-light);margin:10px 0 14px;flex:1;}
.card-meta{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--text-light);}
.card-meta .price{color:var(--accent);font-weight:700;font-size:16px;}
.btn{
  display:inline-block;background:var(--accent);color:#fff;padding:8px 20px;border-radius:7px;
  font-size:14px;font-weight:600;transition:.2s;
}
.btn:hover{background:var(--accent-dark);text-decoration:none;}
.btn-primary{background:var(--primary);}
.btn-primary:hover{background:var(--primary-dark);}
.btn-lg{padding:12px 32px;font-size:16px;border-radius:8px;}

/* ---- 详情页 ---- */
.crumb{font-size:13px;color:var(--text-light);margin-bottom:20px;}
.crumb a{color:var(--primary);}
.detail-head{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px 30px;display:flex;flex-wrap:wrap;gap:20px;align-items:flex-start;margin-bottom:24px;box-shadow:0 2px 10px rgba(20,39,63,.05);}
.detail-head .icon{width:84px;height:84px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:38px;color:#fff;flex-shrink:0;}
.detail-head .dh-info{flex:1;min-width:260px;}
.detail-head h1{font-size:24px;color:var(--primary-dark);}
.detail-head .meta{font-size:13.5px;color:var(--text-light);margin-top:8px;}
.detail-head .meta span{margin-right:16px;}
.detail-head .act{margin-top:14px;display:flex;gap:12px;flex-wrap:wrap;}

.card-sec{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px 30px;margin-bottom:24px;box-shadow:0 2px 10px rgba(20,39,63,.05);}
.card-sec h2{font-size:19px;color:var(--primary);padding-left:12px;border-left:4px solid var(--accent);margin-bottom:16px;}
.card-sec p{font-size:15px;margin-bottom:12px;}
.card-sec ul{list-style:none;margin:0 0 14px;}
.card-sec li{padding:7px 0 7px 26px;position:relative;font-size:15px;}
.card-sec li::before{content:"✓";position:absolute;left:2px;color:var(--green);font-weight:700;}

.mods{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;margin-bottom:14px;}
.mod{background:#fafbfd;border:1px solid var(--border);border-radius:9px;padding:14px 16px;}
.mod h3{font-size:15px;color:var(--primary);margin-bottom:6px;}
.mod p{font-size:13px;color:var(--text-light);margin:0;line-height:1.6;}

table{width:100%;border-collapse:collapse;margin:8px 0 16px;font-size:14px;}
th,td{border:1px solid var(--border);padding:9px 12px;text-align:left;}
th{background:#f0f4f9;color:var(--primary);font-weight:600;white-space:nowrap;}
td{color:var(--text);}

.steps{counter-reset:st;margin-bottom:12px;}
.step{position:relative;padding:10px 0 10px 48px;font-size:15px;}
.step::before{
  counter-increment:st;content:counter(st);position:absolute;left:0;top:8px;
  width:32px;height:32px;background:var(--primary);color:#fff;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;
}
.step b{color:var(--primary);}
code{background:#eef2f7;color:#c0392b;padding:2px 7px;border-radius:4px;font-family:Consolas,Menlo,monospace;font-size:13px;}

/* 截图占位 */
.shots{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-bottom:10px;}
.shot{border:1px dashed #c4cede;border-radius:8px;background:#fafbfd;min-height:150px;display:flex;align-items:center;justify-content:center;color:#9aa8bb;font-size:13px;text-align:center;padding:14px;}
.shot.has{border-style:solid;overflow:hidden;min-height:auto;padding:0;color:inherit;}
.shot img{width:100%;display:block;}

/* 图片点击放大 */
#lightbox{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.86);z-index:9999;align-items:center;justify-content:center;cursor:zoom-out;}
#lightbox.show{display:flex;}
#lightbox img{max-width:92%;max-height:92%;border-radius:8px;box-shadow:0 6px 40px rgba(0,0,0,.6);}
#lightbox-close{position:fixed;top:18px;right:28px;color:#fff;font-size:38px;line-height:1;cursor:pointer;opacity:.85;}
#lightbox-close:hover{opacity:1;}

/* 购买 */
.buy{border:1px solid #f2d5bb;background:linear-gradient(180deg,#fffaf5,#fff);}
.price-line{display:flex;align-items:baseline;gap:10px;margin-bottom:8px;flex-wrap:wrap;}
.price{font-size:34px;font-weight:700;color:var(--accent);}
.price small{font-size:14px;color:var(--text-light);font-weight:400;}
.plan{display:flex;flex-wrap:wrap;gap:12px;margin:14px 0;}
.plan-item{flex:1;min-width:220px;background:#fafbfd;border:1px solid var(--border);border-radius:8px;padding:14px 16px;}
.plan-item h4{font-size:15px;color:var(--primary);margin-bottom:6px;}
.plan-item p{font-size:13px;color:var(--text-light);margin:0;}

/* FAQ */
.faq details{border:1px solid var(--border);border-radius:8px;padding:12px 16px;margin-bottom:10px;background:#fafbfd;}
.faq summary{font-size:15px;color:var(--primary);font-weight:600;cursor:pointer;}
.faq details p{font-size:14px;color:var(--text);margin:10px 0 0;}

/* 联系 */
.contact{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;margin-bottom:10px;}
.citem{background:#fafbfd;border:1px solid var(--border);border-radius:8px;padding:12px 16px;text-align:center;}
.citem .k{font-size:12px;color:var(--text-light);margin-bottom:4px;}
.citem .v{font-size:15px;color:var(--primary);font-weight:600;}
.citem .v a{font-weight:600;}

/* 提示框 */
.tip{border-radius:8px;padding:12px 16px;font-size:14px;margin:12px 0;}
.tip.info{background:#eef6ff;border:1px solid #cfe4fb;color:#24548a;}
.tip.warn{background:#fff6ec;border:1px solid #f4ddc6;color:#8a5a2c;}

footer{text-align:center;color:var(--text-light);font-size:13px;padding:20px 0 46px;border-top:1px solid var(--border);margin-top:10px;}
footer a{color:var(--primary);}
.note{font-size:12.5px;color:var(--text-light);}

@media (max-width:640px){
  .hero h1{font-size:24px;}
  .detail-head{padding:20px;}
  .card-sec{padding:20px;}
}