@charset "utf-8";
/* ==========================================================================
   TopRays 上海特谱锐科技有限公司 · 全站样式
   版式参照光电行业企业门户:1200px 栅格 / 蓝色主色 #089cec / 区块标题渐变块
   ========================================================================== */

/* ---------- 1. 变量与基础 ---------- */
:root{
  /* 主色:科技亮蓝,与首页 Banner 光效一致 */
  --blue:#089cec;
  --blue-d:#0474b8;
  --blue-dd:#035d94;
  --blue-l:#eaf6fe;
  --blue-ll:#f4faff;
  --cyan:#38b6f5;
  /* 深蓝:深色区块 / 页脚 / 数据带 */
  --navy:#0a2540;
  --navy-2:#0e2f4f;
  --navy-3:#081d33;
  --red:#e05545;
  --ink:#0e2738;
  --ink-2:#2a4152;
  --text:#41505f;
  --gray:#647485;
  --gray-l:#9aa8b6;
  --line:#e4ebf1;
  --line-d:#edf2f6;
  --bg-soft:#f4f8fb;
  --surface-2:#f6f9fc;
  /* 蓝色调柔和阴影,更有层次与科技感 */
  --shadow:0 8px 24px rgba(8,64,110,.10);
  --shadow-s:0 2px 8px rgba(8,64,110,.08);
  --shadow-lg:0 22px 50px rgba(8,50,90,.16);
  --shadow-blue:0 10px 26px rgba(8,156,236,.30);
  --container:2048px;
  --hdr-h:70px;
  /* 全站统一无衬线 */
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",Arial,sans-serif;
  --font-num:ui-monospace,"SF Mono","Menlo","Consolas",monospace;
  --font-disp:var(--font);
  /* 材料适配图例里的 ◐(U+25D0)只有符号字体才有,追加在字体栈末尾做逐字回退,
     不影响中英文现有字形 */
  --font-sym:var(--font),"Segoe UI Symbol","Apple Symbols","Arial Unicode MS",sans-serif;
  /* 蓝色渐变:标题块 / 主按钮 */
  --blue-grad:linear-gradient(135deg,#0a86d4 0%,#089cec 55%,#2aa9f0 100%);
  --blue-grad-r:linear-gradient(120deg,#0790dc,#0aa5f0);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font);
  font-size:14px;
  line-height:1.7;
  color:var(--text);
  background:#fff;
  -webkit-font-smoothing:antialiased;
  -webkit-text-size-adjust:100%;
}
h1,h2,h3,h4,h5,h6,p,dl,dd,dt,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
a{color:var(--text);text-decoration:none;transition:color .25s}
a:hover{color:var(--blue)}
img{max-width:100%;border:0;vertical-align:middle}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;outline:none}
button{cursor:pointer;border:0;background:none}
i,em{font-style:normal}
table{border-collapse:collapse;width:100%}
::selection{background:var(--blue);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 clamp(18px,3vw,56px)}
.wide{width:100%}
.clearfix::after{content:"";display:table;clear:both}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.mt20{margin-top:20px}.mt30{margin-top:30px}.mt40{margin-top:40px}

/* 滚动条 */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#f1f1f1}
::-webkit-scrollbar-thumb{background:#c9c9c9;border-radius:6px}
::-webkit-scrollbar-thumb:hover{background:var(--blue)}

/* ---------- 2. 页头 ---------- */
.hdr{background:#fff;padding:0;position:relative;z-index:60;border-bottom:1px solid #e6ecf2;box-shadow:0 1px 12px rgba(16,60,100,.06)}
.hdr-card{background:#fff;border:0;border-radius:0;box-shadow:none;padding:0}
.hdr-inner{display:flex;align-items:center;gap:24px;min-height:var(--hdr-h)}
.logo{display:flex;align-items:center;gap:12px;margin-top:0;flex:0 0 auto}
.logo img{height:48px;width:auto;display:block}
.logo-txt{display:flex;flex-direction:column;justify-content:center;padding-left:14px;border-left:1px solid #e6ebef;min-width:0}
.logo-txt b{font-size:20px;font-weight:400;color:#153a5c;letter-spacing:1px;line-height:1.22;white-space:nowrap}
.logo-txt .logo-en{font-size:11px;font-weight:400;color:#8397a9;letter-spacing:.14em;line-height:1.3;padding-top:2px;white-space:nowrap}
.hdr-right{display:flex;flex-direction:column;align-items:flex-end;justify-content:center;gap:3px;flex:1 1 auto;min-width:0;padding:9px 0 8px}

/* 顶部工具条 */
.util{display:flex;align-items:center;font-size:13px;color:#555}
.util-contact{display:flex;align-items:center;gap:20px;padding-right:16px}
.util-contact a{display:flex;align-items:center;gap:6px;color:#7c7c7c;font-size:12.5px;white-space:nowrap}
.util-contact .uc-k{color:#9d9d9d}
.util-contact em{font-style:normal}
.util-contact .uc-tel em{letter-spacing:.2px}
.util-contact a:hover em{color:#333}
.util-links{display:flex;border:1px solid #e7ecef;background:#fff;border-radius:8px;height:30px;line-height:28px;overflow:hidden}
.util-links li{width:86px;text-align:center;background:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1' height='12'%3E%3Crect width='1' height='12' fill='%23e2e2e2'/%3E%3C/svg%3E") no-repeat left center}
.util-links li:first-child{background:none}
.util-links a{display:block;color:#555}
.util-links a:hover{color:var(--blue)}
.util-cart{position:relative;display:flex;align-items:center;height:30px;padding:0 12px 0 30px;margin-left:11px;border:1px solid #e7ecef;border-radius:8px;background:#fff url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='1.7'%3E%3Cpath d='M3 4h2l2.4 11.2a2 2 0 0 0 2 1.6h7.8a2 2 0 0 0 2-1.6L21 8H6'/%3E%3Ccircle cx='10' cy='20' r='1.4'/%3E%3Ccircle cx='18' cy='20' r='1.4'/%3E%3C/svg%3E") no-repeat 8px center;color:#555}
.util-cart:hover{color:var(--blue);border-color:#d7eefb}
.util-cart .badge{display:inline-block;min-width:16px;height:16px;line-height:16px;padding:0 4px;margin-left:6px;border-radius:9px;background:#e70110;color:#fff;font-size:11px;text-align:center}

/* 主导航 */
.nav{position:relative;padding-top:0;align-self:stretch;width:100%}
.nav>ul{display:flex;align-items:center;justify-content:space-between;width:100%}
.nav>ul>li:last-child>a{padding-right:0}
.nav>ul>li{position:relative}
.nav>ul>li>a{display:block;height:38px;line-height:38px;padding:0 clamp(10px,1.5vw,20px);font-size:17px;letter-spacing:1px;color:#43525f;border-bottom:2px solid transparent;white-space:nowrap}
.nav>ul>li>a:hover,.nav>ul>li>a.active{color:var(--blue);border-bottom-color:var(--blue)}
.nav>ul>li>a.active{font-weight:400}
.nav-drop{position:absolute;left:0;top:44px;width:236px;background:#fff;box-shadow:0 10px 30px rgba(0,0,0,.12);padding:8px 0;opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s;border-top:2px solid var(--blue)}
.nav>ul>li:hover .nav-drop{opacity:1;visibility:visible;transform:translateY(0)}
.nav-drop a{display:block;padding:9px 18px;font-size:15px;color:#5f5f5f}
.nav-drop a em{color:var(--gray-l);font-size:12px;margin-left:6px;font-family:var(--font-disp)}
.nav-drop a:hover{background:var(--blue-l);color:var(--blue)}

/* 移动端菜单按钮 */
.nav-toggle{display:none;position:absolute;right:16px;top:24px;width:44px;height:38px;border:1px solid var(--line);border-radius:3px;background:#fff}
.nav-close,.nav-expand{display:none}
.nav-toggle span{display:block;width:20px;height:2px;margin:4px auto;background:#555;transition:.25s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 3. 首页 Banner 轮播 ---------- */
.banner{position:relative;background:#fff;overflow:hidden}
.banner-viewport{position:relative;height:460px}
.slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .8s ease;pointer-events:none}
.slide.is-active{opacity:1;visibility:visible;pointer-events:auto}
.slide-img{position:absolute;inset:0;z-index:2;width:100%;height:100%;object-fit:cover;display:block}
.slide-img[hidden]{display:none}
.slide-ph{
  position:absolute;inset:0;z-index:1;
  background:
    url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='76' height='76' viewBox='0 0 24 24' fill='none' stroke='rgba(21,58,92,0.13)' stroke-width='1.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='16' rx='2'/%3E%3Ccircle cx='8.6' cy='9.6' r='1.6'/%3E%3Cpath d='M4 17.2l5-4.6 4 3.6 3-2.6 4 3.6'/%3E%3C/svg%3E") no-repeat center,
    #fff;
}

.banner-dots{position:absolute;left:0;right:0;bottom:22px;z-index:6;display:flex;justify-content:center;gap:12px}
.banner-dots button{width:14px;height:14px;border-radius:50%;border:0;background:rgba(21,58,92,.30);transition:.3s;padding:0;box-shadow:0 0 0 1.5px rgba(255,255,255,.9),0 1px 4px rgba(21,58,92,.18)}
.banner-dots button:hover{background:rgba(21,58,92,.55)}
.banner-dots button.is-active{width:30px;border-radius:8px;background:var(--blue)}
.banner-arrow{position:absolute;top:50%;margin-top:-24px;z-index:6;width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.9);border:1px solid rgba(21,58,92,.14);color:#5a6b7b;font-size:0;transition:.3s;box-shadow:0 3px 12px rgba(21,58,92,.16)}
.banner-arrow::before{content:"";position:absolute;left:50%;top:50%;width:12px;height:12px;border-left:2px solid #64798c;border-bottom:2px solid #64798c}
.banner-arrow.prev{left:34px}
.banner-arrow.prev::before{transform:translate(-30%,-50%) rotate(45deg)}
.banner-arrow.next{right:34px}
.banner-arrow.next::before{transform:translate(-70%,-50%) rotate(-135deg)}
.banner-arrow:hover{background:var(--blue);border-color:var(--blue)}
.banner-arrow:hover::before{border-color:#fff}
.banner-progress{position:absolute;left:0;bottom:0;height:2px;background:linear-gradient(90deg,rgba(8,156,236,.16),rgba(8,156,236,.48));z-index:7;width:0;border-radius:0 2px 2px 0}

/* ---------- 4. 检索区 ---------- */
.search-band{padding:58px 0 52px;text-align:center;background:linear-gradient(180deg,#f2f9ff 0%,#ffffff 100%);border-bottom:1px solid #e8f1f8}
.search-band .sb-kicker{font-size:12px;color:#c6d6e0;letter-spacing:5px}
.search-band .sb-title{font-size:42px;font-weight:800;letter-spacing:5px;color:#0a86cf;line-height:1.25;margin-top:2px;text-shadow:2px 3px 0 rgba(8,156,236,.18)}
.search-form{position:relative;max-width:900px;margin:26px auto 0;display:flex}
.search-form input[type=search]{flex:1;height:56px;border:2px solid var(--blue);border-right:0;padding:0 54px 0 20px;font-size:15px;background:#fff url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='22' height='22' viewBox='0 0 24 24' fill='none' stroke='%23b8c6d1' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M20 20l-4.2-4.2'/%3E%3C/svg%3E") no-repeat right 18px center}
.search-form input[type=search]::placeholder{color:#b6b6b6;font-size:14px}
.search-form button{width:132px;height:56px;margin-left:-4px;background:var(--blue-grad-r);color:#fff;font-size:16px;letter-spacing:4px;transition:.25s;transform:skewX(-12deg)}
.search-form button span{display:inline-block;transform:skewX(12deg)}
.search-form button:hover{background:var(--blue-d)}
.search-hot{margin-top:14px;font-size:12px;color:#818181}
.search-hot a{color:#818181;display:inline-block;margin:0 8px}
.search-hot a:hover{color:var(--blue)}
.search-hot .hot{color:var(--red)}

/* ---------- 5. 区块标题 ---------- */
.sec{padding:56px 0}
.sec-soft{background:var(--bg-soft)}
.sec-head{position:relative;display:flex;align-items:center;height:42px;margin-bottom:32px}
.sec-head::after{content:"";position:absolute;left:0;right:0;top:50%;height:1px;background:var(--line)}
.sec-head .sh-block{position:relative;z-index:2;display:flex;align-items:center;gap:10px;height:42px;padding:0 26px 0 22px;background:var(--blue-grad);color:#fff;font-size:18px;letter-spacing:1px;box-shadow:0 9px 22px rgba(8,146,217,.36)}
.sec-head .sh-block::after{content:"";position:absolute;right:-14px;top:0;width:0;height:0;border-top:21px solid transparent;border-bottom:21px solid transparent;border-left:14px solid #0a8fd9}
.sec-head .sh-block em{font-size:11px;letter-spacing:1px;text-transform:uppercase;color:rgba(255,255,255,.75);font-weight:400}
.sec-head .sh-more{position:relative;z-index:2;margin-left:auto;font-size:13px;color:#9a9a9a;background:#fff;padding:0 0 0 16px}
.sec-head .sh-more:hover{color:var(--red)}
.sec-head .sh-more::after{content:"›";margin-left:6px;font-size:15px}
.sec-soft .sec-head .sh-more{background:var(--bg-soft)}
.sec-lead{max-width:820px;margin:-14px 0 30px;color:var(--gray);font-size:14px}
.sec-lead strong{color:var(--ink)}

/* ---------- 6. 四大产品线卡片 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.cat-card{position:relative;display:block;background:#fff;border:1px solid var(--line-d);overflow:hidden;transition:.3s;border-radius:14px;box-shadow:var(--shadow-s)}
.cat-card-thumb{position:relative;height:186px;overflow:hidden;background:#eef4f8}
.cat-card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.cat-card-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,32,54,0) 40%,rgba(6,32,54,.55) 100%)}
.cat-card-idx{position:absolute;left:16px;top:12px;z-index:2;font-size:12px;letter-spacing:2px;color:#fff;background:rgba(8,156,236,.86);padding:2px 10px}
.cat-card-body{padding:18px 20px 22px}
.cat-card-body h3{font-size:18px;color:var(--ink);font-weight:700;letter-spacing:1px}
.cat-card-body h3 em{display:block;font-size:11px;letter-spacing:1.4px;color:var(--gray-l);font-weight:400;text-transform:uppercase;margin-top:4px}
.cat-card-body p{margin-top:12px;font-size:13px;color:var(--gray);line-height:1.85;min-height:96px}
.cat-card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.cat-card-tags span{font-size:12px;color:#0a7bb8;background:#f0f8fe;border:1px solid #dceffa;padding:2px 10px;border-radius:6px}
.cat-card-go{display:flex;align-items:center;justify-content:space-between;margin-top:18px;padding:11px 16px;border-top:0;border-radius:9px;font-size:13px;font-weight:600;letter-spacing:1px;color:#fff;background:var(--blue-grad-r);box-shadow:0 6px 16px rgba(8,156,236,.28)}
.cat-card-go::after{content:"→";transition:.3s}
.cat-card:hover{border-color:var(--blue);box-shadow:var(--shadow-lg);transform:translateY(-6px)}
.cat-card:hover .cat-card-thumb img{transform:scale(1.07)}
.cat-card:hover .cat-card-go::after{transform:translateX(5px)}

/* ---------- 7. 产品卡片 / 悬浮详情 ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.pcard{position:relative;background:#fff;border:1px solid var(--line-d);transition:border-color .3s,box-shadow .3s,transform .3s;z-index:1;border-radius:14px;overflow:hidden;box-shadow:var(--shadow-s)}
.pcard-thumb{display:block;height:182px;overflow:hidden;background:#f6f9fb;text-align:center}
.pcard-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.pcard-body{padding:14px 16px 16px}
.pcard-body h3{font-size:14px;line-height:1.5;font-weight:700;color:var(--ink);height:42px;overflow:hidden}
.pcard-body h3 a{color:var(--ink)}
.pcard-body .pcard-en{font-size:11px;color:var(--gray-l);height:34px;overflow:hidden;line-height:1.45;margin-top:4px;word-break:break-word;letter-spacing:.04em}
.pcard-body .pcard-desc{margin-top:8px;font-size:12px;line-height:1.75;color:var(--gray);height:64px;overflow:hidden}
.pcard-foot{display:flex;align-items:center;justify-content:space-between;margin-top:12px;padding-top:10px;border-top:1px solid #f0f0f0;font-size:12px;color:var(--blue)}
.pcard-foot .pcard-cat{color:#a9b4bd;border:1px solid #eef1f4;padding:1px 8px}
.pcard:hover{border-color:var(--blue);box-shadow:var(--shadow-lg);z-index:30;transform:translateY(-6px)}
.pcard:hover .pcard-thumb img{transform:scale(1.06)}
.pcard-pop{
  position:absolute;left:50%;bottom:calc(100% + 14px);width:392px;margin-left:-196px;background:#fff;border:1px solid #bababa;box-shadow:0 10px 34px rgba(20,40,60,.22);
  padding:16px;display:flex;gap:14px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.28s;z-index:40;text-align:left;
}
.pcard-pop::after{content:"";position:absolute;left:50%;bottom:-9px;width:16px;height:16px;margin-left:-8px;background:#fff;border-right:1px solid #bababa;border-bottom:1px solid #bababa;transform:rotate(45deg)}
.pcard-pop img{width:150px;height:132px;object-fit:cover;flex:0 0 150px;background:#f4f8fa}
.pcard-pop .pp-txt{flex:1;min-width:0}
.pcard-pop .pp-txt h4{font-size:14px;color:var(--ink);line-height:1.5}
.pcard-pop .pp-txt p{font-size:12px;color:var(--gray);line-height:1.7;margin-top:6px}
.pcard-pop .pp-txt ul{margin-top:8px;font-size:12px;color:#5d6b76}
.pcard-pop .pp-txt ul li{position:relative;padding-left:12px;line-height:1.9}
.pcard-pop .pp-txt ul li::before{content:"";position:absolute;left:0;top:11px;width:4px;height:4px;background:var(--blue);border-radius:50%}
.pcard-pop .pp-btn{display:inline-block;margin-top:10px;padding:5px 14px;background:var(--blue);color:#fff;font-size:12px}
.pcard-pop .pp-btn:hover{background:var(--blue-d);color:#fff}
@media (min-width:1001px){.pcard:hover .pcard-pop{opacity:1;visibility:visible;transform:translateY(0)}}
@media (max-width:1000px){.pcard-pop{display:none}}

/* ---------- 8. 应用领域 ---------- */
.app-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.app-card{position:relative;display:flex;gap:14px;align-items:flex-start;padding:20px;background:#fff;border:1px solid var(--line);transition:.3s}
.app-card .ic{flex:0 0 44px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:var(--blue-l);color:var(--blue);border-radius:50%;transition:.3s}
.app-card .ic svg{width:22px;height:22px}
.app-card h3{font-size:15px;color:var(--ink);font-weight:700}
.app-card p{font-size:12px;color:var(--gray);line-height:1.8;margin-top:6px}
.app-card:hover{border-color:var(--blue);box-shadow:var(--shadow-s);transform:translateY(-3px)}
.app-card:hover .ic{background:var(--blue);color:#fff}
.app-card:hover h3{color:var(--blue)}

/* ---------- 9. 关于我们 ---------- */
.about-wrap{display:grid;grid-template-columns:490px 1fr;gap:48px;align-items:center}
.about-media{position:relative}
.about-media img{position:relative;z-index:1;width:100%;height:340px;object-fit:cover;display:block}
.about-media::after{content:"";position:absolute;left:-14px;bottom:-14px;width:150px;height:150px;border-left:4px solid var(--blue);border-bottom:4px solid var(--blue);z-index:0}
.about-badge{position:absolute;right:0;bottom:0;background:var(--blue-grad);color:#fff;padding:14px 20px;text-align:center;line-height:1.2}
.about-badge b{display:block;font-size:26px}
.about-badge span{font-size:12px;opacity:.9}
.about-txt h2{font-size:26px;color:var(--ink);font-weight:700;letter-spacing:1px}
.about-txt .en{font-size:12px;letter-spacing:2px;text-transform:uppercase;color:var(--gray-l);margin-top:6px}
.about-txt p{margin-top:16px;font-size:14px;line-height:2;color:var(--gray)}
.about-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.about-tags span{font-size:12px;color:var(--blue);background:var(--blue-l);padding:4px 12px}
.about-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);margin-top:26px;border:1px solid var(--line)}
.about-stats li{background:#fff;padding:16px 8px;text-align:center}
.about-stats b{display:block;font-size:26px;color:var(--blue);font-weight:700;letter-spacing:0}
.about-stats span{font-size:12px;color:var(--gray)}

/* 公司简介:居中公司名 + 大图 + 正文 */
.profile{max-width:1020px;margin:0 auto;padding:6px 0 0;text-align:center}
.pf-name{font-size:26px;font-weight:700;color:var(--ink);letter-spacing:1px;line-height:1.35;margin:0}
.pf-en{font-size:11.5px;color:#7f8d9a;letter-spacing:.18em;text-transform:uppercase;margin-top:10px}
.pf-tag{display:inline-block;margin-top:16px;font-size:14px;font-weight:700;color:var(--blue)}
.pf-tag:hover{text-decoration:underline}
.pf-cats{font-size:13.5px;color:var(--gray);letter-spacing:.06em;margin-top:12px}
.pf-photo{display:block;width:100%;max-width:780px;height:auto;margin:24px auto 0}
.pf-text{margin-top:28px;text-align:left;font-size:13.5px;line-height:2.05;color:var(--text)}
.pf-text p{margin:0 0 18px}
.pf-text h3{font-size:17px;font-weight:600;color:var(--ink);letter-spacing:0;line-height:1.4;margin:32px 0 14px;padding-left:0;border-left:0;padding-bottom:9px;border-bottom:1px solid var(--line)}
.pf-text p:last-child{margin-bottom:0}
.btn-row{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 26px;font-size:14px;letter-spacing:1px;font-weight:600;transition:.25s;border:1px solid transparent;border-radius:9px}
.btn-primary{background:var(--blue-grad-r);color:#fff;box-shadow:var(--shadow-blue)}
.btn-primary:hover{background:var(--blue-d);color:#fff;box-shadow:0 10px 22px rgba(8,156,236,.42)}
.btn-ghost{border-color:#c9e4f5;color:var(--blue);background:#fff}
.btn-ghost:hover{border-color:var(--blue);color:#fff;background:var(--blue)}
.btn::after{content:"→";transition:.25s}
.btn:hover::after{transform:translateX(4px)}

/* ---------- 10. 新闻 / 技术 / 下载 三栏 ---------- */
.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
.cols3>*{min-width:0}
.col-box h3.col-title{position:relative;display:block;padding:0 0 12px;height:auto;line-height:1.3;background:none;color:var(--ink);font-size:16px;font-weight:600;letter-spacing:0;border-bottom:1px solid var(--ink)}
.col-box h3.col-title::after{content:"";position:absolute;left:0;bottom:-1px;width:44px;height:2px;background:var(--blue);border:0}
.col-box .col-sub{font-size:11px;color:var(--gray-l);letter-spacing:.2em;text-transform:uppercase;margin-top:10px}
.mslider{position:relative;margin-top:16px}
.ms-track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;-ms-overflow-style:none;scroll-behavior:smooth}
.ms-track::-webkit-scrollbar{display:none}
.ms-item{flex:0 0 100%;min-width:0;scroll-snap-align:start}
.ms-item .dl-card{margin-bottom:0}
.ms-btn{position:absolute;top:50%;transform:translateY(-50%);width:28px;height:56px;z-index:3;opacity:.85}
.ms-btn::before{content:"";position:absolute;left:50%;top:50%;width:11px;height:11px;border-top:2px solid #a9b6c0;border-right:2px solid #a9b6c0}
.ms-btn.prev{left:-16px}
.ms-btn.prev::before{transform:translate(-50%,-50%) rotate(-135deg)}
.ms-btn.next{right:-16px}
.ms-btn.next::before{transform:translate(-50%,-50%) rotate(45deg)}
.ms-btn:hover{opacity:1}
.ms-btn:hover::before{border-color:var(--blue)}
.ms-btn[hidden]{display:none}
.col-list{margin-top:18px;border-top:1px solid var(--line)}
.col-list li{position:relative;min-width:0;overflow:hidden;padding:11px 26px 11px 14px;border-bottom:1px solid #f0f0f0;font-size:13px;line-height:1.6}
.col-list li::before{content:"";position:absolute;left:2px;top:19px;width:5px;height:5px;background:#c9c9c9;border-radius:50%}
.col-list li a{display:block;color:var(--gray);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.col-list li a:hover{color:var(--blue)}
.col-list li:hover::before{background:var(--blue)}
.col-list li time{display:block;font-size:11px;color:#bdbdbd;margin-top:2px}
.col-empty{margin-top:18px;padding:28px 16px;border:1px dashed #bfe0f5;border-radius:12px;color:var(--gray);font-size:13px;line-height:1.8;text-align:center;background:var(--blue-ll)}
.col-more{display:inline-block;margin-top:16px;font-size:13px;color:var(--red)}
.col-more:hover{color:var(--red);text-decoration:underline}
.dl-card{padding:0 0 16px;margin-bottom:16px;border-bottom:1px solid #f0f0f0}
.dl-card img{min-width:0}
.dl-card:last-of-type{border-bottom:0}
.dl-card img{width:100%;height:148px;object-fit:cover;display:block;border:1px solid var(--line)}
.dl-card .dl-body{padding-top:12px}
.dl-card h4{font-size:14px;color:var(--ink);line-height:1.6;font-weight:700}
.dl-card p{font-size:12px;color:#a3a3a3;margin-top:6px}
.dl-card a.dl-more{display:inline-block;margin-top:8px;font-size:12px;color:var(--red)}
.dl-card a.dl-more:hover{text-decoration:underline}

/* ---------- 11. CTA 条 ---------- */
.cta-band{background:linear-gradient(100deg,#0769a8 0%,#089cec 52%,#38b6f5 100%);color:#fff;padding:46px 0;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(115deg,rgba(255,255,255,.07) 0 2px,transparent 2px 74px)}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-inner h2{font-size:24px;font-weight:700;letter-spacing:1px}
.cta-inner p{font-size:13px;color:rgba(255,255,255,.85);margin-top:8px}
.cta-inner .btn-white{background:#fff;color:var(--blue);height:46px;padding:0 30px;font-size:15px}
.cta-inner .btn-white:hover{background:#f0f9ff;color:var(--blue-d)}
.cta-inner .btn-outline{border-color:rgba(255,255,255,.7);color:#fff}
.cta-inner .btn-outline:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}

/* ---------- 12. 内页:页头横幅与面包屑 ---------- */
.phero{position:relative;height:auto;padding:48px 0 44px;display:flex;align-items:center;color:var(--ink);overflow:visible;background:linear-gradient(120deg,#f2f8ff 0%,#f7fbff 52%,#edf5ff 100%);
  border-bottom:1px solid #e3edf6;
}
.phero::before{display:none}
.phero::after{display:none}
.phero-inner{position:relative;z-index:2}
.phero h1{font-size:32px;font-weight:600;letter-spacing:-.01em;color:var(--ink)}
.phero h1::after{content:"";display:block;width:56px;height:4px;margin-top:14px;border-radius:3px;background:var(--blue-grad-r)}
.phero .phero-en{font-family:var(--font-num);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--gray-l);margin-top:12px;font-weight:400}
.phero .phero-desc{font-size:13px;color:#5f6b76;margin-top:14px;max-width:720px;line-height:1.9}
/* 石英材料页:导语左、配图右 */
.phero-split .phero-inner{display:grid;grid-template-columns:minmax(0,720px) clamp(320px,46%,660px);gap:clamp(28px,3vw,44px);align-items:center;width:100%}
.phero-split .phero-media img{display:block;width:100%;height:clamp(300px,27vw,410px);object-fit:cover;object-position:center;border:1px solid var(--line);background:#fff}
@media (max-width:900px){
  .phero-split .phero-inner{grid-template-columns:1fr;gap:22px}
  .phero-split .phero-media{max-width:420px}
  .phero-split .phero-media img{height:auto;aspect-ratio:4/3}
}
.crumb{background:#eef4f9;border-bottom:1px solid #e2ebf3;font-size:12px;color:#8a98a5;line-height:44px}
.crumb a{color:#9b9b9b}
.crumb a:hover{color:var(--blue)}
.crumb span.sep{margin:0 8px;color:#c8c8c8}
.crumb .cur{color:var(--blue)}

/* ---------- 13. 内页:侧栏 + 内容 ---------- */
.layout{display:block;padding:44px 0 64px}
.side{position:sticky;top:16px}
.side-head{position:relative;background:var(--blue-grad);color:#fff;padding:18px 20px}
.side-head h2{font-size:19px;font-weight:700;letter-spacing:1px}
.side-head span{display:block;font-size:11px;letter-spacing:2px;text-transform:uppercase;color:rgba(255,255,255,.75);margin-top:4px}
.side-menu{border:1px solid var(--line);border-top:0;background:#fff}
.side-menu li+li{border-top:1px solid #f0f0f0}
.side-menu a{display:block;padding:13px 18px;font-size:14px;color:#5f5f5f;border-left:3px solid transparent}
.side-menu a em{display:block;font-size:11px;color:#b3b3b3;letter-spacing:.6px;margin-top:2px}
.side-menu a:hover{background:#f7fbfe;color:var(--blue);border-left-color:var(--blue)}
.side-menu a.active{background:var(--blue-l);color:var(--blue);border-left-color:var(--blue);font-weight:700}
.side-menu a.active em{color:#7cb9dd}
.side-card{margin-top:20px;border:1px solid var(--line);background:#fff;padding:20px;text-align:center}
.side-card h3{font-size:15px;color:var(--ink);font-weight:700}
.side-card p{font-size:12px;color:var(--gray);margin-top:8px;line-height:1.8}
.side-card .tel{display:block;font-size:20px;color:var(--blue);font-weight:700;margin-top:10px;letter-spacing:.5px}
.side-card .btn{margin-top:14px;height:38px;padding:0 18px;font-size:13px;width:100%;justify-content:center}
.side-card .btn::after{content:""}
.qr-ph{margin:14px auto 0;width:132px;height:132px;border:1px dashed #c9d6e0;background:#fafcfe;display:flex;align-items:center;justify-content:center;font-size:11px;color:#a9b7c2;line-height:1.6;padding:8px;text-align:center}
/* 已放入真实二维码:去掉虚线框,图片撑满占位格 */
.qr-ph-filled{border:0;background:#fff;padding:0}
.qr-ph-filled img{display:block;width:100%;height:100%;object-fit:contain;background:#fff}
.content-main{min-width:0}
.panel{background:#fff;border:1px solid var(--line);padding:26px 28px}
.panel+.panel{margin-top:22px}
.panel-title{font-size:17px;color:var(--ink);font-weight:600;letter-spacing:0;padding-left:0;border-left:0;padding-bottom:10px;border-bottom:1px solid var(--ink);line-height:1.35;margin-bottom:16px}
.panel-title em{font-size:11px;color:var(--gray-l);letter-spacing:.18em;text-transform:uppercase;margin-left:10px;font-weight:400}
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:24px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.filter-bar .fb-label{font-size:13px;color:#9b9b9b;margin-right:4px}
.chip{font-size:13px;color:#5f5f5f;border:1px solid var(--line);background:#fff;padding:6px 16px;transition:.25s}
.chip:hover{border-color:var(--blue);color:var(--blue)}
.chip.is-on{background:var(--blue);border-color:var(--blue);color:#fff}
.filter-search{display:flex;height:36px;margin-left:auto}
.filter-search input{width:238px;border:1px solid var(--line);border-right:0;padding:0 12px;font-size:13px;background:#fff}
.filter-search input:focus{border-color:var(--blue)}
.filter-search button{padding:0 18px;background:var(--blue);color:#fff;font-size:13px;letter-spacing:1px;transition:.25s}
.filter-search button:hover{background:var(--blue-d)}
.result-tip{font-size:13px;color:#9b9b9b;margin-bottom:18px}
.empty-tip{display:none;padding:60px 0;text-align:center;color:#a9b4bd;font-size:14px}
.empty-tip.is-on{display:block}

/* ---------- 14. 文章正文 ---------- */
.article{background:#fff;border:1px solid var(--line);padding:34px 40px 42px}
.article-head{border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:26px}
.article-head h1{font-size:24px;line-height:1.6;color:var(--ink);font-weight:700;letter-spacing:.5px}
.article-meta{margin-top:12px;font-size:12px;color:#a5a5a5}
.article-meta span{margin-right:18px}
.article-body{font-size:14px;line-height:2.05;color:#4a4a4a}
.article-body h2{font-size:18px;color:var(--ink);font-weight:600;letter-spacing:0;margin:30px 0 14px;padding-left:0;border-left:0;padding-bottom:9px;border-bottom:1px solid var(--line)}
.article-body h3{font-size:15px;color:var(--ink);font-weight:700;margin:22px 0 10px}
.article-body p{margin:12px 0}
.article-body strong{color:var(--ink)}
.article-body ul{margin:14px 0 14px 4px}
.article-body ul li{position:relative;padding-left:16px;margin:8px 0}
.article-body ul li::before{content:"";position:absolute;left:0;top:13px;width:6px;height:6px;background:var(--blue);border-radius:50%}
.article-body a{color:var(--blue);text-decoration:underline}
table.spec{margin:18px 0;border:1px solid var(--line);font-size:13px}
table.spec th,table.spec td{border:1px solid var(--line);padding:10px 12px;text-align:left;line-height:1.7;font-variant-numeric:tabular-nums;vertical-align:middle;word-break:keep-all}
table.spec thead th{background:linear-gradient(135deg,#0a2f52,#0c4875);color:#fff;font-weight:600;white-space:nowrap;border-color:#0d3a5e}
table.spec tbody tr:nth-child(even){background:#f5faff}
.note{margin:20px 0;padding:14px 18px;background:#f7fbfe;border-left:4px solid var(--blue);font-size:13px;color:var(--gray);line-height:1.9}
.label-en{display:block;font-size:11px;color:#a9a9a9;letter-spacing:.6px;font-weight:400;margin-top:3px}
.pager{display:flex;justify-content:space-between;gap:20px;margin-top:26px;font-size:13px;color:#9b9b9b}
.pager a{color:#6c6c6c}
.pager a:hover{color:var(--blue)}
.rel-list{margin-top:8px}
.rel-list li{padding:10px 0;border-bottom:1px dashed #eee;font-size:13px}
.rel-list li:last-child{border-bottom:0}
.rel-list li a{color:#5f5f5f}
.rel-list li a:hover{color:var(--blue)}

/* ---------- 15. 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ccard{border:1px solid var(--line);background:#fff;padding:26px 24px;transition:.3s}
.ccard .ic{width:52px;height:52px;border-radius:50%;background:var(--blue-l);color:var(--blue);display:flex;align-items:center;justify-content:center}
.ccard .ic svg{width:24px;height:24px}
.ccard h3{font-size:16px;color:var(--ink);font-weight:700;margin-top:16px}
.ccard p{font-size:13px;color:var(--gray);margin-top:8px;line-height:1.9}
.ccard b{display:block;font-size:19px;color:var(--blue);margin-top:12px;letter-spacing:.5px}
.ccard:hover{border-color:var(--blue);box-shadow:var(--shadow-s);transform:translateY(-3px)}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.form-grid .full{grid-column:1/-1}
.field label{display:block;font-size:13px;color:#6d6d6d;margin-bottom:6px}
.field label i{color:var(--red);margin-right:2px}
.field input,.field select,.field textarea{width:100%;border:1px solid #d8d8d8;background:#fff;padding:10px 12px;font-size:13px;transition:.25s}
.field textarea{height:132px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(8,156,236,.12)}
.form-tip{font-size:12px;color:#a5a5a5;line-height:1.9;margin-top:12px}
.form-tip b{color:var(--blue)}
.form-actions{margin-top:18px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form-actions .sent{font-size:13px;color:var(--blue);display:none}
.form-actions .sent.is-on{display:inline}
.two-col{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}

/* ---------- 16. 页脚 ---------- */
.footer{background:linear-gradient(180deg,#0a2846 0%,#081f38 58%,#07182b 100%);border-top:3px solid var(--blue);padding-top:54px;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.3fr .82fr .82fr 1.16fr .8fr 1.34fr;gap:0}
.footer dl{padding:0 20px;border-right:1px solid rgba(255,255,255,.08)}
.footer dl:first-child{padding-left:0}
.footer dl:last-child{border-right:0;padding-right:0}
.footer dt{font-size:14px;color:#ffffff;font-weight:700;letter-spacing:1px;margin-bottom:16px}
.footer dd a{display:block;font-size:12px;color:#9db5cb;line-height:1.95}
.footer dd a:hover{color:var(--cyan)}
.footer .f-logo{height:40px;width:auto;margin-bottom:14px;background:#fff;padding:6px 13px;border-radius:10px;box-shadow:0 5px 16px rgba(0,0,0,.28)}
.footer .f-about{font-size:12px;color:#93aec4;line-height:1.95}
.footer .f-contact li{display:flex;align-items:baseline;gap:10px;font-size:12px;color:#9db5cb;line-height:1.8;margin-bottom:8px}
.footer .f-contact li .k{flex:0 0 42px;color:#718ca5}
.footer .f-contact li b{color:#d2e2f0;font-size:12px;font-weight:400}
.footer .f-col-qr .qr-ph{margin:0;width:116px;height:116px}
.foot-form{font-size:12px}
.ff-row{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.ff-row .ff-k{flex:0 0 34px;color:#819ab3}
.foot-form input,.foot-form textarea{flex:1;min-width:0;width:100%;border:1px solid #1d3d5c;background:#0d2b46;color:#e6f0f8;padding:8px 10px;font-size:12px;border-radius:6px}
.foot-form input::placeholder,.foot-form textarea::placeholder{color:#6e8aa5}
.foot-form input:focus,.foot-form textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(56,182,245,.16)}
.ff-are{align-items:flex-start}
.ff-are textarea{height:64px;resize:vertical}
.ff-act{display:flex;align-items:center;gap:10px;margin-top:10px}
.ff-btn{height:34px;padding:0 24px;background:var(--blue-grad-r);color:#fff;font-size:13px;border-radius:7px;transition:.25s;font-weight:600;box-shadow:0 6px 14px rgba(8,156,236,.3)}
.ff-btn:hover{background:var(--blue-d);box-shadow:0 8px 18px rgba(8,156,236,.42)}
.ff-act .sent{display:none;font-size:12px;color:var(--blue)}
.ff-act .sent.is-on{display:inline}
.footer-copy .fc-addr{color:#6d88a1}
.footer-copy{margin-top:30px;border-top:1px solid rgba(255,255,255,.09);border-bottom:1px solid rgba(255,255,255,.09)}
.footer-copy .fc-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:44px;font-size:12px;color:#7e98b1;flex-wrap:wrap;padding-right:76px}
.footer-copy a{color:#7e98b1}
.footer-copy a:hover{color:var(--cyan)}
.footer-links{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:12px;color:#5f7d97;padding:12px 0 18px}
.footer-links a{color:#5f7d97}
.footer-links a:hover{color:var(--cyan)}

/* ---------- 17. 右侧浮动导航 ---------- */
.fnav{position:fixed;right:14px;bottom:30px;z-index:50;width:56px;display:flex;flex-direction:column;gap:8px}
.fnav li{position:relative;width:56px;height:64px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 2px 10px rgba(21,24,27,.08);transition:border-color .25s,box-shadow .25s,transform .25s}
.fnav li:hover{border-color:var(--blue);box-shadow:0 8px 22px rgba(8,156,236,.3);transform:translateY(-2px)}
.fnav li>a,.fnav li>button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:100%;height:100%;color:var(--gray);font-size:11px;line-height:1.3;text-align:center;border-radius:12px}
.fnav li svg{width:20px;height:20px}
.fnav li:hover>a,.fnav li:hover>button{color:var(--blue)}
.fnav .to-top{height:48px;margin-top:6px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 2px 10px rgba(21,24,27,.08)}
.fnav .to-top:hover{border-color:var(--blue);background:#fff}
.fnav-pop{position:absolute;right:68px;top:50%;transform:translateY(-50%) translateX(6px);background:#fff;box-shadow:0 8px 28px rgba(0,0,0,.16);padding:14px 16px;opacity:0;visibility:hidden;transition:.25s;white-space:nowrap;text-align:center}
.fnav li:hover .fnav-pop{opacity:1;visibility:visible;transform:translateY(-50%) translateX(0)}
.fnav-pop::after{content:"";position:absolute;right:-6px;top:50%;margin-top:-6px;width:12px;height:12px;background:#fff;transform:rotate(45deg)}
.fnav-pop b{display:block;color:#3a3a3a;font-size:16px;letter-spacing:.5px}
.fnav-pop span{display:block;font-size:12px;color:#9a9a9a;margin-top:4px}
.fnav-pop .qr-ph{margin-top:10px}

/* ---------- 18. 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
  .slide{transition:none}
}

/* ---------- 19. 响应式 ---------- */
@media (max-width:1240px){
  .container{padding:0 clamp(18px,3vw,40px)}
  .hdr-card{padding:0}
  .logo img{height:52px}
  .logo{gap:10px}
  .logo-txt{padding-left:11px}
  .logo-txt b{font-size:16px;letter-spacing:.3px}
  .logo-txt .logo-en{font-size:11px;letter-spacing:.1px}
  .nav>ul>li>a{padding:0 clamp(10px,1.6vw,22px);font-size:16px}
  .logo img{height:54px}
  .banner-viewport{height:410px}
  .cat-card-body p{min-height:auto}
  .cat-card-thumb{height:168px}
  .layout{grid-template-columns:224px 1fr;gap:28px}
  .footer-top{grid-template-columns:repeat(3,1fr);gap:26px 0}
  .footer dl{border-right:0;padding:0 20px}
  .footer dl:nth-child(3n+1){padding-left:0}
  .footer dl:nth-child(3n){padding-right:0}
  .footer dl:last-child{padding-right:0}
}
@media (max-width:1120px){
  .container{padding:0 18px}
  .util-contact .uc-mail{display:none}
  .logo-txt{padding-left:9px}
  .logo-txt b{font-size:15px;letter-spacing:0}
  .nav>ul>li>a{font-size:14.5px;padding:0 clamp(6px,1.1vw,13px)}
}
@media (max-width:1080px){
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .prod-grid{grid-template-columns:repeat(3,1fr)}
  .app-grid{grid-template-columns:repeat(2,1fr)}
  .about-wrap{grid-template-columns:1fr;gap:28px}
  .about-media img{height:300px}
  .cols3{grid-template-columns:1fr 1fr;gap:28px}
  .contact-grid{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px 0}
  .footer dl{padding:0 20px}
  .footer dl:nth-child(odd){padding-left:0}
  .footer dl:nth-child(even){padding-right:0}
  .layout{grid-template-columns:1fr}
  .side{position:static;min-width:0}
  .side-head{padding:14px 18px}
  .side-head h2{font-size:17px}
  .side-menu{display:flex;min-width:0;overflow-x:auto;-webkit-overflow-scrolling:touch;border-top:1px solid var(--line)}
  .side-menu li{flex:0 0 auto;min-width:0}
  .side-menu li+li{border-top:0;border-left:1px solid #f0f0f0}
  .side-menu a{border-left:0;border-bottom:3px solid transparent;white-space:nowrap;padding:12px 18px}
  .side-menu a em{display:none}
  .side-menu a:hover{border-left:0}
  .side-menu a.active{border-left:0;border-bottom-color:var(--blue)}
  .side-card{margin-top:16px}
}
@media (max-width:900px){
  :root{--hdr-h:auto}
  .hdr{padding:0;border-bottom:1px solid #eee}
  .hdr-card{border:0;box-shadow:none;border-radius:0;padding:0}
  .hdr-inner{display:flex;align-items:center;justify-content:space-between;gap:0;min-height:0;padding:12px 0}
  .logo{margin-top:0}
  .logo img{height:46px}
  .logo{gap:9px}
  .logo-txt{padding-left:10px;gap:0}
  .logo-txt b{font-size:15px;letter-spacing:0}
  .logo-txt .logo-en{font-size:10.5px;letter-spacing:0;padding-top:1px}
  .hdr-right{padding-top:0;flex:0 0 auto}
  .util{display:none}
  .nav-toggle{display:block;position:static;margin-left:auto}
  .nav{position:fixed;left:0;top:0;bottom:0;right:0;width:100%;background:#fff;z-index:80;padding:0;border-top:0;opacity:0;visibility:hidden;transform:translateY(-10px);transition:opacity .28s ease,transform .28s ease,visibility .28s;overflow-y:auto;display:block}
  .nav.is-open{opacity:1;visibility:visible;transform:none}
  .nav-close{display:flex;align-items:center;gap:8px;width:100%;padding:18px 22px;color:#555;font-size:15px;border-bottom:1px solid var(--line)}
  .nav-close::before{content:"✕";font-size:16px;color:var(--blue)}
  .nav>ul{display:block;width:100%}
  .nav>ul>li{position:relative;border-bottom:1px solid #f2f2f2}
  .nav>ul>li>a{height:auto;line-height:1.6;padding:15px 22px;border-bottom:0;font-size:16px}
  .nav>ul>li:last-child>a{padding-right:22px}
  .nav>ul>li>a.active{border-bottom:0;background:var(--blue-l)}
  .nav-expand{display:block;position:absolute;right:16px;top:8px;width:38px;height:38px;border:1px solid var(--line);border-radius:3px;background:#fff}
  .nav-expand::before{content:"";position:absolute;left:50%;top:50%;width:9px;height:9px;margin:-7px 0 0 -5px;border-right:2px solid #7d7d7d;border-bottom:2px solid #7d7d7d;transform:rotate(45deg);transition:.25s}
  .nav-expand.is-open::before{margin-top:-3px;transform:rotate(-135deg)}
  .nav-drop{position:static;opacity:1;visibility:visible;transform:none;width:auto;box-shadow:none;border-top:0;background:#fafafa;display:none;padding:0}
  .has-drop.is-open .nav-drop{display:block}
  .nav-drop a{padding:12px 34px;border-bottom:1px solid #f2f2f2;font-size:14px}
  body.nav-open{overflow:hidden}
  .banner-viewport{height:340px}
  .banner-arrow{display:none}
  .phero{height:auto;padding:34px 0}
  .phero h1{font-size:26px}
  .sec{padding:44px 0}
  .search-band{padding:36px 0}
  .article{padding:24px 20px 30px}
  .article-head h1{font-size:20px}
  .panel{padding:20px 18px}
  .cta-band{padding:34px 0}
  .cta-inner h2{font-size:20px}
}
@media (max-width:760px){
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:1fr}
  .cols3{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:0}
  .footer dl{padding:18px 0;border-right:0;border-bottom:1px solid #ececec}
  .footer dl:nth-child(even){padding-right:0}
  .footer .f-col-qr .qr-ph{margin:0 auto}
  .footer dl:last-child{border-bottom:0}
  .banner-viewport{height:300px}
  /* Banner 标题文字在左侧:窄屏向左取景,保证标题完整可见 */
  .slide-img{object-position:left center}
  .btn-row{gap:10px}
  .btn{height:42px;padding:0 18px;font-size:13px}
  .fnav{right:6px;bottom:16px;width:52px}
  .footer-copy .fc-inner{height:auto;padding:12px 64px 12px 0}
  .fnav li{width:52px;height:66px}
  .fnav .fnav-pop{display:none}
  .about-stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
  .logo{gap:8px}
  .logo-txt{padding-left:9px}
  .logo-txt b{font-size:13.5px;white-space:normal;line-height:1.25}
  .logo-txt .logo-en{display:none}
  .profile{padding:4px 0 0}
  .pf-name{font-size:20px;letter-spacing:.5px}
  .pf-en{font-size:11.5px;letter-spacing:.3px}
  .pf-tag{font-size:12.5px;margin-top:12px}
  .pf-cats{font-size:12.5px;margin-top:10px}
  .pf-photo{margin-top:18px}
  .pf-text{margin-top:20px;font-size:13px;line-height:1.95}
  .pf-text p{margin-bottom:14px}
  .pf-text h3{font-size:16px;margin:24px 0 12px}
  .prod-grid{grid-template-columns:1fr}
  .app-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .search-form button{width:88px;letter-spacing:2px}
  .search-form input[type=search]{font-size:14px;padding:0 12px}
  .search-band .sb-title{font-size:30px;letter-spacing:2px}
  .sec-head .sh-block{font-size:16px;padding:0 18px}
  .sec-head .sh-more{font-size:12px}
  .article-body{font-size:13.5px}
}

/* ---------- 20. 生产工艺图集(公司简介页) ---------- */
.proc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:20px}
.proc-grid figure{border:1px solid var(--line);background:#fff}
.proc-grid img{width:100%;height:158px;object-fit:cover;display:block}
.proc-grid figcaption{font-size:12px;color:var(--gray);padding:9px 10px;text-align:center;border-top:1px solid #f2f2f2}
@media (max-width:760px){.proc-grid{grid-template-columns:repeat(2,1fr)}.proc-grid img{height:130px}}
@media (max-width:480px){.proc-grid{grid-template-columns:1fr}}

/* ---------- 21. 新闻 / 文章列表 ---------- */
.newslist li{display:flex;gap:20px;padding:20px 0;border-bottom:1px dashed #eaeaea}
.newslist li:first-child{padding-top:0}
.newslist .nd{flex:0 0 76px;text-align:center;border-right:1px solid #eee;padding-right:14px}
.newslist .nd b{display:block;font-size:24px;color:var(--blue);line-height:1.15;font-weight:700}
.newslist .nd b em{display:block;font-size:12px;color:#a9a9a9;font-weight:400;letter-spacing:0}
.newslist .nt{flex:1;min-width:0}
.newslist .nt h3{font-size:15px;color:var(--ink);line-height:1.65;font-weight:700;letter-spacing:.3px}
.newslist .nt h3 a{color:var(--ink)}
.newslist .nt h3 a:hover{color:var(--blue)}
.newslist .nt p{font-size:13px;color:var(--gray);margin-top:8px;line-height:1.9}
.newslist .nt .tagline{display:inline-block;margin-top:10px;font-size:12px;color:var(--red)}
.newslist .nt .tagline:hover{text-decoration:underline}
.news-empty{padding:26px 0;color:#a9b4bd;font-size:13px}
@media (max-width:560px){.newslist li{gap:14px}.newslist .nd{flex:0 0 62px;padding-right:10px}.newslist .nd b{font-size:20px}}

/* ---------- 产品总览:分类区块网格(参照昊量产品页) ---------- */
.prodmap{display:grid;grid-template-columns:repeat(4,1fr);gap:34px 34px;margin-top:6px}
.pm-group{min-width:0}
.pm-gt{font-size:16px;font-weight:600;color:var(--ink);letter-spacing:0;padding-left:0;border-left:0;padding-bottom:10px;border-bottom:1px solid var(--ink);line-height:1.3}
.pm-gt a{color:inherit}
.pm-gt a:hover{color:var(--blue)}
.pm-gt em{font-size:11px;color:var(--gray-l);letter-spacing:.16em;text-transform:uppercase;margin-left:10px;font-weight:400}
.pm-plist{margin-top:14px}
.pm-plist li{border-top:1px solid #f0f0f0}
.pm-plist li:first-child{border-top:0}
.pm-plist a{display:block;padding:9px 0;font-size:13.5px;color:var(--ink);line-height:1.5}
.pm-plist a:hover{color:var(--blue)}
.pm-plist em{display:block;font-style:normal;font-size:11px;color:#b3b3b3;letter-spacing:.3px;margin-top:3px}

@media (max-width:1240px){.prodmap{grid-template-columns:repeat(2,1fr);gap:30px 28px}}
@media (max-width:700px){.prodmap{grid-template-columns:1fr;gap:26px}}
/* 窄屏:规格表表头允许换行,避免英文长表头把表格撑出屏幕 */
@media (max-width:700px){table.spec thead th{white-space:normal}}

/* ---------- 联系页(参照昊量联系页) ---------- */
.ct-wrap{padding:4px 0 0}
.ct-title{font-size:18px;font-weight:700;color:var(--blue)}
.ct-company{font-size:15px;font-weight:400;letter-spacing:.5px;color:var(--ink);margin-top:16px}
.ct-rows{margin-top:4px}
.ct-rows li{display:flex;font-size:13.5px;color:var(--text);line-height:2.2}
.ct-k{flex:0 0 92px;color:#6d6d6d;letter-spacing:1px}
.ct-v a{color:var(--text)}
.ct-v a:hover{color:var(--blue)}
.ct-inner{max-width:940px;margin:0 auto}
.ct-cols{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:38px;align-items:stretch}
.ct-col{min-width:0}
.ct-qr{display:flex;flex-direction:column;gap:22px;margin-top:30px}
.ct-qr-item{display:flex;align-items:center;gap:16px}
.ct-qr-item .qr-ph{margin:0;width:108px;height:108px;flex:0 0 108px}
.ct-qr-t{font-size:15px;font-weight:700;color:var(--red);line-height:1.7}
.ct-qr-t em{display:block;font-style:normal;font-size:12px;font-weight:400;color:#9b9b9b;margin-top:5px}
.ct-map{position:relative;overflow:hidden;background:#eef1f3;min-height:430px}
.ct-map img{position:absolute;inset:0;display:block;width:100%;height:100%;object-fit:cover;object-position:center}
.ct-form{margin-top:40px;border-top:1px solid #f0f0f0;padding-top:28px}
.ct-sub{font-size:17px;font-weight:700;color:var(--ink)}
.ct-sub span{font-size:12px;font-weight:400;color:#9b9b9b;margin-left:8px}
.ct-f{margin-top:18px;max-width:680px}
.cf-row{display:grid;grid-template-columns:104px minmax(0,1fr);gap:14px;align-items:center;margin-bottom:14px}
.cf-row label{font-size:13px;color:#6d6d6d;text-align:right}
.cf-row label i{color:var(--red);font-style:normal;margin-right:2px}
.cf-row input{height:40px;border:1px solid #d8d8d8;background:#fff;padding:0 12px;font-size:13px;transition:.25s}
.cf-row textarea{height:124px;border:1px solid #d8d8d8;background:#fff;padding:10px 12px;font-size:13px;resize:vertical;transition:.25s}
.cf-row input:focus,.cf-row textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(8,156,236,.12)}
.cf-act{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-left:118px}
.cf-act .sent{font-size:13px;color:var(--blue);display:none}
.cf-act .sent.is-on{display:inline}

@media (max-width:1000px){
  .ct-cols{grid-template-columns:1fr;gap:28px}
  .ct-qr{flex-direction:row;flex-wrap:wrap;gap:30px}
  .ct-map{position:static;min-height:0}
  .ct-map img{position:static;height:auto}
}
@media (max-width:760px){
  .ct-wrap{padding:24px 18px 28px}
  .ct-qr{flex-direction:column;gap:20px}
  .cf-row{grid-template-columns:1fr;gap:6px}
  .cf-row label{text-align:left}
  .cf-act{margin-left:0}
}
@media (max-width:560px){
  .ct-k{flex:0 0 84px;letter-spacing:0}
  .ct-rows li{font-size:13px}
  .ct-qr-item{gap:14px}
  .ct-qr-item .qr-ph{width:110px;height:110px;flex:0 0 110px}
  .ct-qr-t{font-size:13.5px}
}

/* ---------- 15. 产品参数与规格书 ---------- */
.pd-list{margin-top:4px}
.pdetail{padding:26px 0 8px;border-top:1px solid #eef1f4}
.pdetail:first-child{border-top:0;padding-top:6px}
.pd-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding-bottom:14px}
.pd-idx{font-size:12.5px;font-weight:700;letter-spacing:1px;color:#fff;background:var(--blue);padding:3px 9px;line-height:1.3}
.pd-head h3{flex:1;min-width:220px;font-size:18px;font-weight:700;color:var(--ink);line-height:1.4}
.pd-head h3 em{display:block;font-size:11px;font-weight:400;letter-spacing:1.2px;text-transform:uppercase;color:var(--gray-l);margin-top:3px}
.pd-dl{flex:0 0 auto;font-size:12.5px;color:var(--blue);background:#f2faff;border:1px solid #c5e7fb;padding:7px 16px;transition:.25s}
.pd-dl:hover{background:var(--blue);border-color:var(--blue);color:#fff}
.pd-top{display:grid;grid-template-columns:290px minmax(0,1fr);gap:26px;align-items:start}
.pd-media{background:#f7fafc;display:flex;align-items:center;justify-content:center;padding:14px;min-height:190px}
.pd-media img{max-height:250px;width:auto;object-fit:contain}
.pd-intro{font-size:13.5px;line-height:2;color:var(--text)}
.pd-intro+.pd-intro{margin-top:8px}
.pd-pop{margin-top:14px}
.pd-pop li{position:relative;padding-left:16px;font-size:13px;color:#5d6b76;line-height:1.95}
.pd-pop li::before{content:"";position:absolute;left:2px;top:11px;width:5px;height:5px;background:var(--blue);border-radius:50%}
.pd-btns{margin-top:18px}
.pd-body{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 26px;margin-top:20px;padding-top:20px;border-top:1px dashed var(--line)}
.pd-sec.wide{grid-column:1/-1}
.pd-body>.pd-sec{min-width:0}
.pd-fig img{max-width:100%}
.pd-sec-t{font-size:13.5px;font-weight:600;color:var(--ink);line-height:1.35;padding-left:0;border-left:0;margin-bottom:9px;padding-bottom:8px;border-bottom:1px solid var(--line)}
.pd-li{position:relative;padding-left:14px;font-size:12.5px;color:#5d6b76;line-height:1.9;margin-bottom:3px}
.pd-li::before{content:"";position:absolute;left:1px;top:10px;width:4px;height:4px;background:#bcc9d3;border-radius:50%}
.pd-note{font-size:12px;color:#8b98a3;line-height:1.85;margin-top:6px}
.pd-para{font-size:12.5px;color:#5d6b76;line-height:1.95;margin:0 0 6px}
.pd-body .pd-para,.pd-body .pd-note,.pd-body td,.pd-body th{font-family:var(--font-sym)}
.pd-fig{margin:12px 0;text-align:center}
.pd-fig img{max-height:300px;width:auto}
.pd-fig figcaption{font-size:11.5px;color:#8b98a3;margin-top:6px}
.tblwrap{overflow-x:auto;margin:10px 0}
.tblwrap{max-width:100%}
.tblwrap table.spec{margin:0;font-size:12.5px;min-width:380px}
.tblwrap table.spec th,.tblwrap table.spec td{padding:7px 10px}

/* 产品索引列表 */
.pm-plist li{display:flex;align-items:center;gap:10px}
.pm-plist li>a:first-child{flex:1;min-width:0}
.pm-plist li.pm-empty a{color:var(--gray)}

/* 悬浮卡片第二按钮 */
.pcard-pop .pp-btn-2{background:#fff;color:var(--blue);border:1px solid var(--blue);margin-left:6px}
.pcard-pop .pp-btn-2:hover{background:var(--blue);color:#fff}

/* 卡片等高:底部按钮对齐 */
.pcard{display:flex;flex-direction:column}
.pcard-body{flex:1;display:flex;flex-direction:column}
.pcard-foot{margin-top:auto}

/* 规格书下载清单 */
.article-body .dl-cat,.dl-cat{font-size:15px;font-weight:600;color:var(--ink);line-height:1.35;letter-spacing:0;padding-left:0;border-left:0;padding-bottom:9px;border-bottom:1px solid var(--ink);margin:26px 0 12px}
.article-body .dl-cat em,.dl-cat em{font-size:11px;font-weight:400;letter-spacing:.16em;text-transform:uppercase;color:var(--gray-l);margin-left:10px}
.article-body .dl-list,.dl-list{margin:0;border-top:1px solid #f0f0f0}
.article-body .dl-list li,.dl-list li{position:static;margin:0;padding-left:0;border-bottom:1px solid #f0f0f0}
.article-body .dl-list li::before,.dl-list li::before{display:none}
.article-body .dl-list a,.dl-list a{display:block;position:relative;padding:12px 118px 12px 2px;font-size:13.5px;color:var(--ink);text-decoration:none;line-height:1.5}
.dl-list .dl-name{display:block;line-height:1.5}
.dl-list .dl-name em{display:block;font-size:11px;color:#b3b3b3;letter-spacing:.3px;margin-top:3px;line-height:1.6}
.article-body .dl-list .dl-meta,.dl-list .dl-meta{position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:11.5px;color:#9aa7b1;border:1px solid #eef1f4;padding:2px 10px;white-space:nowrap}
.dl-list a:hover .dl-name,.article-body .dl-list a:hover .dl-name{color:var(--blue)}
.dl-list a:hover .dl-meta,.article-body .dl-list a:hover .dl-meta{border-color:var(--blue);color:var(--blue)}

@media (max-width:1000px){
  .pd-top{grid-template-columns:1fr;gap:18px}
  .pd-media img{max-height:220px}
  .pd-body{grid-template-columns:1fr;gap:14px}
  .pd-head h3{font-size:16px}
  .pdetail{padding:20px 0 6px}
}
@media (max-width:560px){
  .pd-dl{width:100%;text-align:center}
  .pd-list .btn-row .btn{width:100%;justify-content:center}
  .tblwrap table.spec{min-width:320px}
}

/* ---------- 16. 单个产品页 ---------- */
.pdetail-page{padding:26px 0 60px}
.pd-head h1{flex:1;min-width:220px;font-size:24px;font-weight:700;color:var(--ink);line-height:1.4}
.pd-head h1 em{display:block;font-size:12px;font-weight:400;letter-spacing:1.2px;text-transform:uppercase;color:var(--gray-l);margin-top:5px}
.pd-cat{flex:0 0 auto;align-self:flex-start;font-size:12.5px;color:var(--blue);background:#f2faff;border:1px solid #d8ecfa;padding:5px 12px}
.pd-rel{margin-top:34px;padding-top:22px;border-top:1px solid #eef1f4}
.pd-rel .pd-sec-t em{font-size:11px;font-weight:400;letter-spacing:1.2px;text-transform:uppercase;color:var(--gray-l);margin-left:8px}
.rel-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:14px}
.rel-grid a{display:block;height:100%;border:1px solid var(--line);background:#fff;transition:.25s}
.rel-grid img{width:100%;height:132px;object-fit:cover;background:#f6f9fb}
.rel-grid span{display:block;padding:10px 12px;font-size:13px;color:var(--ink);line-height:1.5}
.rel-grid span em{display:block;font-size:11px;color:#b3b3b3;margin-top:3px;letter-spacing:.3px}
.rel-grid a:hover{border-color:var(--blue);box-shadow:var(--shadow-s)}
.rel-grid a:hover span{color:var(--blue)}
.pd-foot{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:34px;padding-top:22px;border-top:1px solid #eef1f4}
@media (max-width:1000px){
  .pd-head h1{font-size:19px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:560px){
  .rel-grid{grid-template-columns:1fr}
  .pd-foot .btn{width:100%;justify-content:center}
  .pdetail-page{padding:18px 0 44px}
}

/* ---------- 22. 页面配图(产品线横幅 / 公司简介 / 列表缩略图) ---------- */
.img-band{margin-top:22px}
.img-band img{display:block;width:100%;height:auto}
.pf-band{display:block;width:100%;height:auto;margin:26px auto 6px}
.newslist .nthumb{flex:0 0 176px;align-self:flex-start;display:block;overflow:hidden;border:1px solid var(--line);background:#fff}
.newslist .nthumb img{display:block;width:100%;height:110px;object-fit:cover;transition:transform .5s ease}
.newslist .nthumb:hover img{transform:scale(1.05)}
@media (max-width:760px){
  .img-band{margin-top:16px}
  .pf-band{margin:20px auto 4px}
  .newslist .nthumb{flex:0 0 128px}
  .newslist .nthumb img{height:82px}
}
@media (max-width:560px){
  .newslist li{flex-wrap:wrap;gap:12px}
  .newslist .nd{flex:0 0 auto;border-right:0;padding-right:0;text-align:left}
  .newslist .nd b em{display:inline;margin-left:8px}
  .newslist .nthumb{flex:0 0 92px;margin-left:auto}
  .newslist .nthumb img{height:62px}
  .newslist .nt{flex:1 1 100%}
}

/* ---------- 在线客服 / 选型咨询聊天页(2026-10-16 紧凑改版) ---------- */
.chat-wrap{display:grid;grid-template-columns:minmax(0,1fr) clamp(248px,20vw,300px);gap:clamp(20px,2.4vw,36px);align-items:start}
.chat-main{border:1px solid var(--line);background:#fff;display:flex;flex-direction:column;min-height:430px;max-height:min(74vh,720px)}
.chat-head{display:flex;align-items:center;gap:10px;padding:11px 16px;border-bottom:1px solid var(--line);background:var(--surface-2)}
.chat-avatar{width:34px;height:34px;flex:0 0 34px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;letter-spacing:.04em}
.chat-id b{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.5}
.chat-id em{font-size:11.5px;font-style:normal;color:var(--gray)}
.chat-live{margin-left:auto;display:flex;align-items:center;gap:6px;font-size:11.5px;color:#1f7a4d;white-space:nowrap}
.chat-live::before{content:"";width:6px;height:6px;border-radius:50%;background:#1f7a4d}
.chat-log{flex:1;min-height:250px;overflow-y:auto;background:#fafcfe;display:flex;flex-direction:column}
.chat-log-inner{display:flex;flex-direction:column;gap:13px;padding:14px 14px}
.chat-msg{position:relative;max-width:min(100%,176px);padding:9px 12px;font-size:13px;line-height:1.72;color:#1f2933;background:#fff;border:1px solid var(--line);border-radius:6px;word-break:break-word}
.chat-msg strong{color:var(--ink)}
.chat-msg a{color:var(--blue)}
/* 仿微信:客服在左(白气泡 + 头像 + 小尖角),访客自己在右(绿气泡 + 头像 + 小尖角) */
.chat-msg.bot{align-self:flex-start;margin-left:40px}
.chat-msg.me{align-self:flex-end;margin-right:40px;background:#95ec69;border-color:#8adc5e;color:#1a1a1a}
.chat-msg.bot::before{content:"TR";position:absolute;left:-40px;top:0;width:30px;height:30px;border-radius:4px;
  background:var(--blue);color:#fff;font-size:11px;font-weight:600;letter-spacing:.02em;
  display:flex;align-items:center;justify-content:center}
.chat-msg.bot::after{content:"";position:absolute;left:-5px;top:11px;width:8px;height:8px;
  background:#fff;border-left:1px solid var(--line);border-bottom:1px solid var(--line);transform:rotate(45deg)}
.chat-msg.me::before{content:"";position:absolute;right:-5px;top:11px;width:8px;height:8px;
  background:#95ec69;border-right:1px solid #8adc5e;border-top:1px solid #8adc5e;transform:rotate(45deg)}
.chat-msg.me::after{content:"";position:absolute;right:-40px;top:0;width:30px;height:30px;border-radius:4px;
  background-color:#e3ecf3;
  background-image:radial-gradient(circle at 50% 34%,#a8bccd 0 4.6px,transparent 5px),
                   radial-gradient(ellipse 11px 8.5px at 50% 96%,#a8bccd 0 100%,transparent 0)}
.chat-msg.typing{color:var(--gray-l);letter-spacing:.18em;padding-right:15px}
.chat-form{display:flex;gap:10px;padding:14px 16px;border-top:1px solid var(--line);background:#eef4f9}
.chat-form input{flex:1;min-width:0;font:inherit;font-size:14.5px;padding:15px 16px;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:2px}
.chat-form input:focus{outline:none;border-color:var(--blue)}
.chat-form .btn{flex:0 0 auto;font-size:14px;padding:15px 26px}
.chat-note{margin:0;padding:0 16px 12px;font-size:11.5px;line-height:1.8;color:#7c8f9f;background:#eef4f9}
.chat-side{border:1px solid var(--line);background:var(--surface-2);padding:clamp(16px,1.6vw,20px)}
.chat-qr{background:#fff;border:1px solid var(--line);padding:14px;text-align:center}
.chat-qr img{display:block;width:100%;max-width:178px;height:auto;margin:0 auto}
.chat-qr p{margin:9px 0 0;font-size:12.5px;color:var(--ink)}
.chat-side .btn{width:100%;margin-top:10px}
.chat-side .kv{list-style:none;margin:16px 0 0;padding:0;border-top:1px solid var(--line)}
.chat-side .kv li{display:grid;grid-template-columns:58px minmax(0,1fr);gap:9px;padding:8px 0;border-bottom:1px solid var(--line-d);font-size:13px;color:var(--ink)}
.chat-side .kv li:first-child{padding-top:0}
.chat-side .kv .k{font-size:12px;color:var(--gray)}
.chat-side .kv a{color:var(--ink);text-decoration:none}
.chat-side .kv a:hover{color:var(--blue)}
.chat-side-note{margin:12px 0 0;font-size:12.5px;line-height:1.75}

@media (max-width:900px){
  .chat-wrap{grid-template-columns:1fr;gap:22px}
  .chat-main{max-height:none;min-height:0}
  .chat-log{min-height:190px;max-height:48vh}
  .chat-log-inner{padding:14px;gap:8px}
  .chat-msg{max-width:min(100%,176px)}
  .chat-form,.chat-note{padding-left:14px;padding-right:14px}
  .chat-side{order:2}
  .chat-qr img{max-width:168px}
}

/* 桌面端:右侧浮动快捷栏是固定定位,给客服页留出避让空间 */
@media (min-width:901px){
  .chat-wrap{padding-right:40px}
}
.pd-row{display:flex;gap:28px;align-items:flex-start}
.pd-row>.pd-sec{flex:1 1 0;min-width:0}

/* 23 · 光纤产品线卡片图
   光纤的 23 张产品图是正方形(盘面居中、四周留白),而卡片缩略图框是 2.3:1 的横幅,
   默认的 object-fit:cover 会把盘子的上下裁掉、看上去像被放大过。这里改成 contain,
   让整个光纤盘完整落在缩略图里,四周留白与卡片白底一致。 */
.prod-grid[data-line=fiber] .pcard-thumb{height:196px;background:#fff}
.prod-grid[data-line=fiber] .pcard-thumb img{object-fit:contain;padding:4px 0}
.prod-grid[data-line=fiber] .pcard-pop img{object-fit:contain;background:#fff}

/* 石英 / 特种光源 / 光学器件三条产品线的产品图:产品完整显示、四周留白,缩略图比通用尺寸小一号
   (光纤线沿用下面 [data-line=fiber] 的规则) */
.prod-grid[data-line=quartz] .pcard-thumb,
.prod-grid[data-line=light] .pcard-thumb,
.prod-grid[data-line=optics] .pcard-thumb{height:150px;background:#fff}
.prod-grid[data-line=quartz] .pcard-thumb img,
.prod-grid[data-line=light] .pcard-thumb img,
.prod-grid[data-line=optics] .pcard-thumb img{object-fit:contain;padding:6px 30px}
.prod-grid[data-line=quartz] .pcard-pop img,
.prod-grid[data-line=light] .pcard-pop img,
.prod-grid[data-line=optics] .pcard-pop img{object-fit:contain;background:#fff}

/* 24 · 产品详情「按规格书结构」排版
   products-specs.json 里带 blocks 的小节按规格书里的先后顺序排,这里补齐需要的样式:
   副标题 / 产品图结构说明 / 次级小标题 / 并排两栏 / 表格分组标题行 / 插图题注 */
.pd-sub{font-size:14px;color:var(--gray);line-height:1.7;margin:5px 0 0}
.pd-imgcat{font-size:12px;color:var(--gray);line-height:1.75;text-align:left;
  align-self:stretch;margin:0}
.pd-media{flex-direction:column;align-items:center}
.pd-sub-t{font-size:12.5px;font-weight:600;color:var(--ink);margin:14px 0 7px}
.pd-sec>.pd-sub-t:first-child{margin-top:0}
.pd-cols{display:flex;gap:22px;align-items:flex-start}
.pd-cols>.pd-col{flex:1 1 0;min-width:0}
.pd-cols>.pd-col>*:last-child{margin-bottom:0}
.pd-fig-t{font-size:12.5px;font-weight:600;color:var(--ink);margin-bottom:6px;text-align:left}
.pd-fig-note{font-size:11.5px;color:var(--gray-l);line-height:1.8;margin-top:6px;text-align:left}
.pd-fig.half{max-width:430px}
table.spec tr.band td{background:var(--blue-l);font-weight:600;color:var(--ink)}
/* 规格书里有些说明行就排在表格内(例如馈通件「其他接口…可按需提供」),
   做成空标签 + 跨列小字,跟规格书一致 */
table.spec tr.note-row td{color:var(--gray-l);font-size:12px;border-bottom:0;padding-top:2px}
@media (max-width:760px){
  .pd-cols{flex-direction:column;gap:14px}
}

/* ---------- 25. 首页深蓝数据带 ---------- */
.stats{position:relative;overflow:hidden;padding:54px 0;
  background:linear-gradient(120deg,#0a2540 0%,#0c3358 46%,#0a2a4a 100%);}
.stats::before{content:"";position:absolute;inset:0;background:
  radial-gradient(620px 220px at 16% -10%,rgba(56,182,245,.16),transparent 60%),
  radial-gradient(560px 240px at 86% 110%,rgba(8,156,236,.18),transparent 60%);}
.stats::after{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:46px 46px;
  -webkit-mask:linear-gradient(180deg,transparent,#000 28%,#000 72%,transparent);
          mask:linear-gradient(180deg,transparent,#000 28%,#000 72%,transparent);}
.stats-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);}
.stats-grid li{position:relative;text-align:center;padding:6px 18px;}
.stats-grid li+li::before{content:"";position:absolute;left:0;top:14%;height:72%;width:1px;
  background:linear-gradient(180deg,transparent,rgba(255,255,255,.18),transparent);}
.stats-grid b{display:block;line-height:1;font-weight:800;letter-spacing:1px;font-variant-numeric:tabular-nums;
  font-size:clamp(38px,4.4vw,56px);
  background:linear-gradient(180deg,#ffffff 0%,#7fd0ff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;}
.stats-grid li:nth-child(3) b{font-size:clamp(27px,3.1vw,42px);letter-spacing:1.5px}
.stats-grid li:nth-child(4) b{font-size:clamp(34px,3.9vw,50px)}
.stats-grid span{display:block;margin-top:13px;font-size:16px;font-weight:600;color:#eaf4fc;letter-spacing:1px;}
.stats-grid em{display:block;margin-top:7px;font-size:12px;color:#7fa0bd;letter-spacing:.4px;}
@media (max-width:760px){
  .stats{padding:40px 0}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:30px 0}
  .stats-grid li:nth-child(3)::before{display:none}
  .stats-grid li:nth-child(odd)::before{display:none}
}

/* ---------- 26. 微信客服入口(右侧浮层 / 页脚 / 联系页) ---------- */
.f-qr-act,.ct-qr-act a,.fnav-pop a{color:var(--blue);font-weight:600}
.f-qr-act{display:inline-block;margin-top:10px;font-size:12px}
.f-qr-act:hover,.ct-qr-act a:hover,.fnav-pop a:hover{text-decoration:underline}
.ct-qr-txt{min-width:0}
.ct-qr-act{margin-top:9px}
.ct-qr-act a{font-size:13px}
.fnav-pop a{display:block;margin-top:10px;font-size:12px;white-space:nowrap}

/* ---------- 27. 留言表单:蜜罐字段 + 客服在线时段 ---------- */
.ff-hp,.cf-hp{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.chat-live em{font-style:normal;color:var(--gray);font-weight:400}
.chat-msg.sys{align-self:center;max-width:100%;background:transparent;border:0;color:var(--gray);font-size:12px;line-height:1.7;padding:2px 0;text-align:center}
@media (max-width:760px){
  .chat-live em{display:none}
}