:root{
  --blue:#1656d6; --blue-dark:#0e3a9c; --ink:#1a1a1a; --gray:#666; --bg-gray:#f5f7fb;
  --gold:#c8961e; --radius:12px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:70px}
body{font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",sans-serif;color:var(--ink);background:#fff;line-height:1.7}
a{text-decoration:none;color:inherit}
img{max-width:100%}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.btn{display:inline-block;padding:13px 32px;border-radius:30px;font-size:16px;cursor:pointer;border:none;transition:.25s}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 6px 16px rgba(22,86,214,.35)}
.btn-outline{background:#fff;color:var(--blue);border:2px solid var(--blue)}
.btn-outline:hover{background:var(--blue);color:#fff}
.btn-sm{padding:9px 22px;font-size:14px}
.btn-block{width:100%;text-align:center}
.btn-mini{background:var(--blue);color:#fff;border:none;border-radius:6px;padding:5px 14px;font-size:13px;cursor:pointer}
.btn-mini:hover{background:var(--blue-dark)}

/* 导航 */
.navbar{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.96);box-shadow:0 2px 12px rgba(0,0,0,.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-size:20px;font-weight:700;color:var(--ink)}
.logo em{font-style:normal;font-size:1.2em;color:#1656d6;margin-left:6px}
.logo-mark{display:inline-block;background:var(--blue);color:#fff;border-radius:8px;padding:2px 8px;font-size:15px;margin-right:6px}
.nav-menu{display:flex;list-style:none;gap:26px}
.nav-menu a{font-size:15px;color:var(--ink);padding:6px 2px;border-bottom:2px solid transparent}
.nav-menu a:hover{color:var(--blue);border-bottom-color:var(--blue)}
.nav-phone{font-size:16px;font-weight:700;color:#d4380d}
.nav-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer}

/* Banner */
.banner{min-height:100vh;display:flex;align-items:center;position:relative;background:linear-gradient(135deg,#f7faff 0%,#eaf1fd 100%);padding:110px 0 60px;overflow:hidden}
.banner-inner{display:flex;align-items:center;gap:40px;flex-wrap:wrap}
.banner-text{flex:1 1 480px}
.banner-text h1{font-size:46px;line-height:1.3;color:var(--ink)}
.banner-text h1 span{color:var(--blue)}
.banner-sub{margin:22px 0 30px;font-size:17px;color:var(--gray)}
.banner-btns{display:flex;gap:16px;flex-wrap:wrap}
.banner-note{margin-top:14px;font-size:13px;color:#999}
.banner-img{flex:1 1 380px;position:relative;text-align:center}
.banner-img img{width:min(100%,460px);filter:drop-shadow(0 24px 40px rgba(14,58,156,.22));animation:float 5s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.ripple{position:absolute;left:50%;top:55%;border:2px solid rgba(22,86,214,.25);border-radius:50%;transform:translate(-50%,-50%);animation:ripple 4s linear infinite}
.r1{width:280px;height:280px}.r2{width:380px;height:380px;animation-delay:1.3s}.r3{width:480px;height:480px;animation-delay:2.6s}
@keyframes ripple{0%{opacity:.7;transform:translate(-50%,-50%) scale(.8)}100%{opacity:0;transform:translate(-50%,-50%) scale(1.15)}}
.scroll-hint{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);font-size:30px;color:var(--blue);animation:float 2s ease-in-out infinite}

/* 通用区块 */
.section{padding:84px 0}
.section-gray{background:var(--bg-gray)}
.sec-title{text-align:center;font-size:32px;color:var(--ink)}
.sec-title::after{content:"";display:block;width:52px;height:4px;background:var(--blue);margin:14px auto 0;border-radius:2px}
.sec-sub{text-align:center;color:var(--gray);margin:12px 0 44px;font-size:16px}

/* 产品 */
.tabs{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-bottom:30px}
.tab{padding:9px 24px;border-radius:22px;border:1px solid #ddd;background:#fff;font-size:15px;cursor:pointer;transition:.2s}
.tab.active,.tab:hover{background:var(--blue);color:#fff;border-color:var(--blue)}
.table-wrap{overflow-x:auto;margin-bottom:40px}
.prod-table{width:100%;border-collapse:collapse;background:#fff;font-size:14px}
.prod-table th{background:var(--ink);color:#fff;padding:13px 14px;text-align:left;white-space:nowrap}
.prod-table td{padding:13px 14px;border-bottom:1px solid #eee}
.prod-table tbody tr:hover{background:#f2f6ff}
.prod-table .model{color:var(--blue);font-weight:700;white-space:nowrap}
.soon-td{text-align:center;color:#999;padding:18px!important;background:#fafafa}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:26px}
.cards.cols-3{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.card{background:#fff;border-radius:var(--radius);padding:28px;box-shadow:0 4px 18px rgba(0,0,0,.06);transition:.25s}
.card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(14,58,156,.14)}
.card h3{font-size:19px;margin-bottom:8px}
.card img{height:150px;object-fit:contain;margin-bottom:10px}
.card .slogan{color:var(--blue);font-weight:600;margin-bottom:10px}
.card ul{list-style:none;margin-bottom:16px}
.card ul li{padding:5px 0 5px 20px;position:relative;font-size:14.5px;color:#444}
.card ul li::before{content:"▸";color:var(--blue);position:absolute;left:0}
.card p{font-size:14.5px;color:#444;margin-bottom:10px}
.card .tagline{color:var(--gold);font-weight:600;margin-bottom:10px}
.card-btns{display:flex;gap:10px;flex-wrap:wrap}
.case-card h3{color:var(--blue)}
.case-more{font-size:13px;color:#999}
.quality-bar{margin-top:44px;background:var(--ink);color:#fff;border-radius:var(--radius);padding:18px 24px;text-align:center;font-size:14.5px}
.quality-bar i{color:var(--gold);margin:0 10px;font-style:normal}
.logo-wall{border:1px dashed #ccc;border-radius:var(--radius);padding:22px;text-align:center;margin-bottom:30px;background:#fafafa}
.wall-note{color:#999;font-size:14px}

/* 关于 */
.about-text{max-width:900px;margin:0 auto 40px;text-align:center;font-size:16px;color:#444}
.stats{display:flex;justify-content:center;gap:60px;flex-wrap:wrap}
.stat{text-align:center}
.stat strong{font-size:44px;color:var(--blue)}
.stat strong span{font-size:18px;margin-left:2px}
.stat p{color:var(--gray)}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:36px}
.contact-form{background:#fff;border-radius:var(--radius);box-shadow:0 4px 18px rgba(0,0,0,.06);padding:32px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-form label{display:block;font-size:14px;color:#555;margin-bottom:16px}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;margin-top:6px;padding:11px 14px;border:1px solid #ddd;border-radius:8px;font-size:14.5px;font-family:inherit}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:none;border-color:var(--blue)}
.form-tip{font-size:13px;color:#999;margin-top:12px;text-align:center}
.contact-info{background:var(--ink);color:#fff;border-radius:var(--radius);padding:32px}
.contact-info h3{margin-bottom:16px;font-size:18px}
.contact-info p{margin-bottom:12px;font-size:14.5px}
.contact-info a{color:#8db4ff}
.map-placeholder{margin-top:18px;border:1px dashed #666;border-radius:8px;padding:36px 16px;text-align:center;color:#999;font-size:13.5px}

/* 页脚 */
.footer{background:#111;color:#bbb;padding:34px 0 26px;text-align:center;position:relative}
.footer p{margin-bottom:8px;font-size:13.5px}
.footer-nav a:hover{color:#fff}
.to-top{position:fixed;right:22px;bottom:90px;width:44px;height:44px;border-radius:50%;border:none;background:var(--blue);color:#fff;font-size:18px;cursor:pointer;opacity:0;pointer-events:none;transition:.3s;z-index:99}
.to-top.show{opacity:1;pointer-events:auto}

/* 悬浮条 */
.float-bar{position:fixed;right:0;top:55%;transform:translateY(-50%);z-index:98;display:flex;flex-direction:column;gap:10px}
.float-quote{writing-mode:vertical-rl;background:#d4380d;color:#fff;border:none;padding:18px 10px;font-size:15px;letter-spacing:4px;cursor:pointer;border-radius:8px 0 0 8px}
.float-wx{writing-mode:vertical-rl;background:#fff;border:1px solid #eee;color:var(--ink);padding:16px 10px;font-size:14px;border-radius:8px 0 0 8px;cursor:pointer;position:relative}
.wx-tip{display:none;position:absolute;right:182px;top:0;background:#fff;border-radius:8px;box-shadow:0 4px 16px rgba(0,0,0,.15);padding:20px;font-size:12px;text-align:center;writing-mode:horizontal-tb}
.float-wx:hover .wx-tip{display:block}

/* 弹窗 */
.modal-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:200;align-items:center;justify-content:center}
.modal-mask.open{display:flex}
.modal{background:#fff;border-radius:14px;padding:34px;width:min(92vw,420px);position:relative;animation:pop .25s}
@keyframes pop{from{transform:scale(.92);opacity:0}to{transform:scale(1);opacity:1}}
.modal-close{position:absolute;top:12px;right:14px;background:none;border:none;font-size:18px;cursor:pointer;color:#999}
.modal h3{text-align:center;font-size:20px}
.modal-sub{text-align:center;color:var(--gray);font-size:13.5px;margin:8px 0 20px}
.modal input,.modal textarea{width:100%;margin-bottom:12px;padding:11px 14px;border:1px solid #ddd;border-radius:8px;font-size:14.5px;font-family:inherit}
.modal input:focus,.modal textarea:focus{outline:none;border-color:var(--blue)}
.modal-note{text-align:center;font-size:12px;color:#999;margin-top:10px}

/* 响应式 */
@media(max-width:900px){
  .banner-text h1{font-size:32px}
  .contact-grid{grid-template-columns:1fr}
  .nav-phone{display:none}
  .nav-toggle{display:block}
  .nav-menu{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:10px 0;box-shadow:0 8px 16px rgba(0,0,0,.08)}
  .nav-menu.open{display:flex}
  .nav-menu li{padding:10px 24px}
  .section{padding:60px 0}
}
@media(max-width:520px){
  .form-row{grid-template-columns:1fr}
  .banner-text h1{font-size:27px}
  .stats{gap:34px}
  .float-wx .wx-tip{display:none!important}
}

/* v1.1 新增：Logo与产品实拍图 */
.logo-img{height:34px;vertical-align:middle;border-radius:4px}
.logo em{margin-left:8px}
.prod-photo{height:170px;width:100%;object-fit:contain;background:#f7f9fc;border-radius:8px;margin-bottom:12px}