:root{
    --navy:#0E2A47; --navy2:#123B63; --blue:#1E6FCF;
    --orange:#E8590C; --orange-h:#C84708;
    --bg:#F3F5F7; --card:#ffffff; --line:#E2E7EC;
    --text:#18242F; --muted:#5C6B78;
    --radius:14px;
  }
  *{margin:0;padding:0;box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
    color:var(--text); background:var(--bg); line-height:1.6;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;}
  a{color:inherit;text-decoration:none;}
  .wrap{width:100%;max-width:1080px;margin:0 auto;padding:0 18px;box-sizing:border-box;}

  /* ===== 顶部导航 ===== */
  .topbar{
    position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
    border-bottom:1px solid var(--line);
  }
  .topbar-inner{display:flex;align-items:center;justify-content:space-between;height:58px;gap:12px;}
  .brand{display:flex;align-items:center;gap:9px;min-width:0;}
  .brand-badge{
    width:34px;height:34px;border-radius:9px;background:var(--navy);flex:none;
    display:flex;align-items:center;justify-content:center;color:#fff;
  }
  .brand-badge svg{width:20px;height:20px;}
  .brand-name{font-size:17px;font-weight:800;letter-spacing:.2px;white-space:nowrap;}
  .brand-sub{font-size:11px;color:var(--muted);white-space:nowrap;}
  .nav-links{display:none;align-items:center;gap:26px;font-size:15px;color:var(--muted);}
  .nav-links a:hover{color:var(--navy);}
  .top-phone{
    flex:none;display:inline-flex;align-items:center;gap:7px;
    background:var(--orange);color:#fff;font-weight:700;font-size:15px;
    padding:9px 14px;border-radius:20px;white-space:nowrap;
  }
  .top-phone svg{width:15px;height:15px;}

  /* ===== Hero ===== */
  .hero{position:relative;color:#fff;overflow:hidden;background:var(--navy);}
  .hero-bg{
    position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.32;
  }
  .hero-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,42,71,.82),rgba(14,42,71,.55) 55%,rgba(14,42,71,.92));}
  .hero-inner{position:relative;padding:56px 18px 60px;max-width:760px;margin:0 auto;}
  .hero-tag{
    display:inline-flex;align-items:center;gap:7px;font-size:13px;color:#FFD9C2;
    background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);
    padding:5px 12px;border-radius:20px;margin-bottom:16px;
  }
  .hero-tag svg{width:14px;height:14px;}
  .hero h1{font-size:30px;line-height:1.25;font-weight:900;letter-spacing:.5px;margin-bottom:14px;}
  .hero p{font-size:15px;color:#DCE6F1;max-width:640px;margin-bottom:24px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:16px;font-weight:700;padding:13px 22px;border-radius:30px;border:none;cursor:pointer;
  }
  .btn svg{width:17px;height:17px;}
  .btn-orange{background:var(--orange);color:#fff;box-shadow:0 8px 22px rgba(232,89,12,.35);}
  .btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.4);}
  .hero-stats{display:flex;flex-wrap:wrap;gap:26px;margin-top:28px;}
  .stat b{display:block;font-size:22px;font-weight:800;}
  .stat span{font-size:12.5px;color:#B9C9D8;}

  /* ===== 区块标题 ===== */
  section{padding:52px 0;}
  .sec-head{margin-bottom:28px;}
  .sec-kicker{font-size:13px;font-weight:700;color:var(--orange);letter-spacing:2px;margin-bottom:6px;}
  .sec-title{font-size:24px;font-weight:800;line-height:1.3;}
  .sec-sub{font-size:14px;color:var(--muted);margin-top:8px;max-width:640px;}

  /* ===== 服务 ===== */
  .service-grid{display:grid;grid-template-columns:1fr;gap:16px;}
  .s-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
    overflow:hidden;display:flex;flex-direction:column;
  }
  .s-card .img-box{position:relative;aspect-ratio:4/3;overflow:hidden;}
  .s-card .img-box img{width:100%;height:100%;object-fit:cover;}
  .s-card .body{padding:16px 16px 18px;flex:1;display:flex;flex-direction:column;}
  .s-card h3{font-size:18px;font-weight:800;margin-bottom:6px;}
  .s-card p{font-size:13.5px;color:var(--muted);flex:1;margin-bottom:14px;}
  .s-card .meta{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px;}
  .s-card .meta span{font-size:12px;background:#EEF3F8;color:var(--navy2);padding:3px 9px;border-radius:20px;}
  .s-link{
    display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;color:var(--orange);
  }
  .s-link svg{width:15px;height:15px;}

  /* ===== 优势 ===== */
  .why{background:var(--navy);color:#fff;}
  .why .sec-kicker{color:#FF9A63;}
  .why .sec-sub{color:#B9C9D8;}
  .why-grid{display:grid;grid-template-columns:1fr;gap:16px;}
  .about-body{max-width:820px;}
  .about-body p{font-size:14.5px;line-height:1.9;color:var(--muted);margin-bottom:10px;}
  .about-body a{color:var(--orange);font-weight:700;text-decoration:none;}
  .price-table{max-width:860px;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-top:6px;}
  .p-row{display:grid;grid-template-columns:1.5fr .7fr 1.9fr;gap:10px;padding:11px 16px;border-bottom:1px solid var(--line);background:var(--card);font-size:14px;align-items:center;}
  .p-row:last-child{border-bottom:none;}
  .p-row.p-head{background:var(--navy);color:#fff;font-weight:700;font-size:14px;}
  .p-price{color:var(--orange);font-weight:800;white-space:nowrap;}
  .p-note{color:var(--muted);font-size:12.5px;}
  .price-note{margin-top:12px;font-size:12.5px;color:var(--muted);}
  .tip-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:6px;}
  .tip-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;}
  .tip-card h3{font-size:15px;color:var(--navy);margin-bottom:8px;}
  .tip-card p{font-size:13px;line-height:1.8;color:var(--muted);}
  .tips-note{margin-top:14px;font-size:13px;color:var(--muted);}
  .tips-note a{color:var(--orange);font-weight:700;text-decoration:none;}
  .cons-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:6px;}
  .cons-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center;}
  .cons-card img{width:100%;max-width:180px;height:auto;margin:0 auto 10px;border-radius:8px;background:#fff;object-fit:contain;}
  .cons-card h3{font-size:15px;color:var(--navy);margin-bottom:4px;}
  .cons-model{display:block;font-size:12px;color:var(--muted);margin-bottom:8px;}
  .cons-price{display:inline-block;font-size:13px;color:var(--orange);font-weight:800;background:rgba(255,122,0,.08);padding:3px 10px;border-radius:20px;}
  .cons-note{margin-top:16px;font-size:12.5px;color:var(--muted);}
  .cons-note a{color:var(--orange);font-weight:700;text-decoration:none;}
  @media(max-width:900px){.cons-grid{grid-template-columns:repeat(2,1fr);}}
  @media(max-width:560px){.cons-grid{grid-template-columns:1fr;}}
  @media(max-width:900px){.tip-grid{grid-template-columns:repeat(2,1fr);}}
  @media(max-width:560px){.tip-grid{grid-template-columns:1fr;}}
  @media(max-width:640px){.p-row{grid-template-columns:1fr 1fr;}.p-note{grid-column:1/-1;}}
  .w-item{
    background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
    border-radius:var(--radius);padding:20px;
  }
  .w-item .ic{width:42px;height:42px;border-radius:11px;background:rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;margin-bottom:14px;}
  .w-item .ic svg{width:22px;height:22px;color:#FF9A63;}
  .w-item h4{font-size:17px;font-weight:800;margin-bottom:6px;}
  .w-item p{font-size:13.5px;color:#C7D5E1;}

  /* ===== 流程 ===== */
  .flow-grid{display:grid;grid-template-columns:1fr;gap:14px;}
  .f-step{display:flex;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;}
  .f-num{
    flex:none;width:40px;height:40px;border-radius:50%;background:var(--navy);color:#fff;
    display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;
  }
  .f-body b{display:block;font-size:16px;margin-bottom:4px;}
  .f-body p{font-size:13.5px;color:var(--muted);}

  /* ===== 维修案例 ===== */
  .case-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px;}
  .case-tab{padding:8px 16px;border-radius:20px;background:#fff;border:1px solid var(--line);font-size:13.5px;cursor:pointer;color:var(--muted);}
  .case-tab.active{background:var(--navy);color:#fff;border-color:var(--navy);font-weight:700;}
  .case-grid{display:grid;grid-template-columns:1fr;gap:14px;}
  .case-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
  .case-head{padding:15px 16px;cursor:pointer;display:flex;align-items:center;gap:11px;transition:background .15s;}
  .case-head:hover{background:#F7F9FB;}
  .case-head .brand-tag{flex:none;font-size:12px;background:var(--orange);color:#fff;padding:4px 10px;border-radius:6px;font-weight:800;}
  .case-head b{flex:1;font-size:15px;line-height:1.45;}
  .case-head .chev{flex:none;color:var(--muted);transition:transform .2s;display:flex;}
  .case-card.open .chev{transform:rotate(180deg);}
  .case-body{max-height:0;overflow:hidden;transition:max-height .3s ease;background:#F7F9FB;border-top:0 solid var(--line);}
  .case-card.open .case-body{max-height:2000px;border-top:1px solid var(--line);}
  .case-body-in{padding:4px 16px 16px;font-size:14px;color:var(--text);line-height:1.75;}
  .case-body-in h5{font-size:13px;color:var(--navy);margin:13px 0 5px;font-weight:800;}
  .case-body-in h5:first-child{margin-top:12px;}
  .case-body-in .cta{display:inline-flex;align-items:center;gap:7px;background:var(--orange);color:#fff;font-weight:700;padding:9px 16px;border-radius:20px;font-size:14px;margin-top:16px;}
  .case-empty{padding:30px;text-align:center;color:var(--muted);}
  .manual-brand{margin-bottom:6px;}
  .manual-brand-name{font-size:1.15rem;color:var(--navy);margin:4px 0 12px;font-weight:800;}
  .fault-list{margin:0 0 12px;padding-left:18px;line-height:1.8;}
  .fault-list li{margin-bottom:8px;}

  /* ===== 清零服务 ===== */
  .clearing{background:var(--navy);color:#fff;}
  .clearing .sec-kicker{color:#FF9A63;}
  .clearing .sec-sub{color:#B9C9D8;}
  .clear-grid{display:grid;grid-template-columns:1fr;gap:16px;}
  .ci-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:20px;}
  .ci-card .ic{width:42px;height:42px;border-radius:11px;background:rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;margin-bottom:13px;}
  .ci-card .ic svg{width:22px;height:22px;color:#FF9A63;}
  .ci-card h4{font-size:16.5px;font-weight:800;margin-bottom:8px;}
  .ci-card p{font-size:13.5px;color:#C7D5E1;line-height:1.7;}
  .ci-card ul{font-size:13.5px;color:#C7D5E1;padding-left:17px;line-height:1.9;}
  .ci-card a.tel{color:#FF9A63;font-weight:800;}

  /* ===== 客户评价 ===== */
  .review{background:var(--bg);}
  .review-grid{display:grid;grid-template-columns:1fr;gap:16px;}
  .review-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;max-width:640px;margin:0 auto;box-shadow:0 6px 20px rgba(0,0,0,.04);}
  .review-stars{color:#F5A623;font-size:18px;letter-spacing:2px;margin-bottom:12px;}
  .review-text{font-size:16px;color:var(--text);line-height:1.8;font-weight:600;}
  .review-text::before{content:"“";color:var(--orange);font-size:26px;line-height:0;}
  .review-text::after{content:"”";color:var(--orange);font-size:26px;line-height:0;}
  .review-by{font-size:13px;color:var(--muted);margin-top:14px;}

  /* ===== FAQ ===== */
  .faq-list{display:flex;flex-direction:column;gap:10px;}
  .faq-list details{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:2px 18px;overflow:hidden;
  }
  .faq-list summary{
    list-style:none;cursor:pointer;font-size:15.5px;font-weight:700;color:var(--navy);
    padding:15px 0;display:flex;align-items:center;justify-content:space-between;gap:12px;
  }
  .faq-list summary::-webkit-details-marker{display:none;}
  .faq-list summary::after{content:"+";font-size:20px;font-weight:400;color:var(--orange);flex:none;transition:transform .2s;}
  .faq-list details[open] summary::after{transform:rotate(45deg);}
  .faq-list details p{font-size:14px;color:var(--muted);line-height:1.75;padding:0 0 16px;}
  .faq-list details p a{color:var(--orange);font-weight:700;}

  /* ===== 联系 ===== */
  .contact{background:var(--bg);}
  .contact-grid{display:grid;grid-template-columns:1fr;gap:16px;}
  .c-card .map-link{display:inline-block;margin-top:8px;font-size:12.5px;color:var(--orange);text-decoration:none;font-weight:700;}
  .c-card .map-link:hover{text-decoration:underline;}
  .c-wx{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:18px;background:linear-gradient(135deg,#fff,#eafaf1);border:1px solid #d1f2df;border-radius:var(--radius);padding:20px 24px;}
  .c-wx-txt{flex:1;min-width:220px;}
  .c-wx-txt b{font-size:16px;color:var(--navy);}
  .c-wx-txt p{font-size:13.5px;color:var(--muted);line-height:1.7;margin-top:6px;}
  .c-wx .qr{text-align:center;flex:none;}
  .c-wx .qr img{height:220px;width:auto;border-radius:8px;background:#fff;padding:8px;box-shadow:0 4px 14px rgba(0,0,0,.12);}
  .c-wx-hint{font-size:12px;color:#07C160;font-weight:700;margin-top:6px;}
  .c-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;display:flex;gap:14px;}
  .c-card .ic{flex:none;width:44px;height:44px;border-radius:12px;background:#EEF3F8;display:flex;align-items:center;justify-content:center;}
  .c-card .ic svg{width:22px;height:22px;color:var(--navy);}
  .c-card b{display:block;font-size:15px;margin-bottom:3px;}
  .c-card .val{font-size:14.5px;color:var(--text);}
  .c-card .val a{font-weight:800;color:var(--orange);font-size:18px;}
  .c-card p{font-size:13px;color:var(--muted);margin-top:2px;}

  /* ===== footer ===== */
  footer{background:#0B223A;color:#A9BBCB;padding:26px 0;font-size:13px;}
  footer .wrap{display:flex;flex-direction:column;gap:8px;align-items:flex-start;}
  footer b{color:#fff;font-size:14px;}
  .footer-links{margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.12);width:100%;}
  .footer-links .fl-group{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 2px;margin-bottom:8px;}
  .footer-links h4{font-size:13px;color:#fff;font-weight:800;margin-right:8px;flex:none;white-space:nowrap;}
  .footer-links a{font-size:12px;color:rgba(255,255,255,.7);text-decoration:none;padding:2px 7px;border-radius:4px;transition:background .15s,color .15s;}
  .footer-links a:hover{background:rgba(255,255,255,.12);color:#fff;}

  /* ===== 悬浮客服按钮 ===== */
  .fab{
    position:fixed;right:16px;bottom:18px;z-index:90;
    display:flex;align-items:center;gap:8px;background:var(--orange);color:#fff;
    padding:12px 16px;border-radius:30px;font-weight:800;font-size:15px;
    box-shadow:0 10px 28px rgba(232,89,12,.45);border:none;cursor:pointer;
  }
  .fab svg{width:20px;height:20px;}
  .fab .pulse{position:relative;width:8px;height:8px;border-radius:50%;background:#fff;}
  .fab .pulse::after{content:"";position:absolute;inset:0;border-radius:50%;background:#fff;animation:pulse 1.8s infinite;}
  @keyframes pulse{0%{transform:scale(1);opacity:.9}70%{transform:scale(2.6);opacity:0}100%{transform:scale(1);opacity:0}}

  /* ===== 聊天窗口 ===== */
  .chat{
    position:fixed;right:0;bottom:0;left:0;top:0;z-index:100;
    display:flex;flex-direction:column;background:var(--bg);
    transform:translateY(105%);transition:transform .28s ease;visibility:hidden;
  }
  .chat.open{transform:translateY(0);visibility:visible;}
  .chat-head{
    background:var(--navy);color:#fff;padding:14px 16px;display:flex;align-items:center;gap:11px;
  }
  .chat-avatar{width:42px;height:42px;border-radius:50%;background:var(--orange);display:flex;align-items:center;justify-content:center;flex:none;}
  .chat-avatar svg{width:22px;height:22px;color:#fff;}
  .chat-identity{flex:1;min-width:0;}
  .chat-identity b{display:block;font-size:16px;}
  .chat-identity span{font-size:12px;color:#C7D5E1;display:flex;align-items:center;gap:5px;}
  .chat-identity span i{width:7px;height:7px;border-radius:50%;background:#35D07F;display:inline-block;}
  .chat-close{flex:none;width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.12);border:none;color:#fff;font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;}
  .chat-human{
    flex:none;display:flex;align-items:center;gap:5px;margin-right:8px;
    background:#07C160;color:#fff;border:none;border-radius:16px;padding:6px 11px;
    font-size:12.5px;font-weight:700;cursor:pointer;transition:transform .15s,background .15s;
  }
  .chat-human:hover{background:#06ae56;transform:scale(1.04);}
  .chat-human svg{width:13px;height:13px;}
  .chat-wxbar{
    display:flex;align-items:center;justify-content:center;gap:8px;width:100%;
    background:linear-gradient(90deg,#07C160,#06AD56);color:#fff;border:none;
    padding:12px 10px;font-size:14px;font-weight:800;cursor:pointer;flex:none;
  }
  .chat-wxbar svg{width:18px;height:18px;}
  .chat-wxbar:hover{filter:brightness(1.06);}
  .chat-body{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px;}
  .msg{display:flex;gap:9px;max-width:88%;}
  .msg .av{flex:none;width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;}
  .msg.bot .av{background:var(--orange);}
  .msg.bot .av svg{width:15px;height:15px;color:#fff;}
  .msg.user{flex-direction:row-reverse;margin-left:auto;}
  .msg.user .av{background:var(--navy2);}
  .msg.user .av svg{width:15px;height:15px;color:#fff;}
  .bubble{
    background:#fff;border:1px solid var(--line);border-radius:14px;
    border-top-left-radius:4px;padding:10px 13px;font-size:14.5px;line-height:1.6;
  }
  .msg.user .bubble{background:var(--navy2);color:#fff;border:none;border-top-left-radius:14px;border-top-right-radius:4px;}
  .bubble .t{color:var(--muted);font-size:12px;margin-top:7px;}
  .quick{display:flex;flex-wrap:wrap;gap:8px;padding:2px 0;}
  .quick button{
    background:#fff;border:1px solid #CFD8E0;color:var(--navy2);font-size:13px;
    padding:7px 13px;border-radius:18px;cursor:pointer;
  }
  .quick button:hover{background:#EEF3F8;}
  .chat-foot{border-top:1px solid var(--line);background:#fff;padding:10px 12px;}
  .chat-tools{display:flex;gap:8px;margin-bottom:8px;}
  .chat-tools a{
    flex:1;display:inline-flex;align-items:center;justify-content:center;gap:7px;
    background:var(--orange);color:#fff;font-weight:700;font-size:14px;padding:11px;border-radius:10px;
  }
  .chat-tools a svg{width:16px;height:16px;}
  .input-row{display:flex;gap:8px;align-items:center;}
  .input-row input{
    flex:1;min-width:0;border:1px solid var(--line);border-radius:22px;padding:12px 16px;
    font-size:16px;outline:none;background:#F7F9FB;
  }
  .input-row input:focus{border-color:var(--blue);}
  .send-btn{
    flex:none;width:44px;height:44px;border-radius:50%;background:var(--orange);border:none;color:#fff;
    cursor:pointer;display:flex;align-items:center;justify-content:center;
  }
  .send-btn svg{width:18px;height:18px;}

  /* ===== 桌面 ===== */
  @media (min-width:768px){
    .wrap{padding:0 26px;}
    .nav-links{display:flex;}
    .hero-inner{padding:78px 26px;}
    .hero h1{font-size:44px;}
    .hero p{font-size:17px;}
    .stat b{font-size:26px;}
    section{padding:66px 0;}
    .sec-title{font-size:30px;}
    .service-grid{grid-template-columns:repeat(3,1fr);gap:20px;}
    .why-grid{grid-template-columns:repeat(4,1fr);gap:18px;}
    .flow-grid{grid-template-columns:repeat(3,1fr);gap:18px;}
    .contact-grid{grid-template-columns:repeat(3,1fr);gap:18px;}
    .case-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
    .clear-grid{grid-template-columns:repeat(3,1fr);gap:18px;}
    .chat{
      top:auto;left:auto;right:20px;bottom:20px;width:400px;height:560px;
      border-radius:18px;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.3);
      border:1px solid var(--line);
    }
  }
  /* ===== 移动端汉堡菜单 ===== */
  .hamburger{
    display:none;flex:none;width:40px;height:40px;border:none;background:transparent;cursor:pointer;
    flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0;
  }
  .hamburger span{display:block;width:20px;height:2px;background:var(--navy);border-radius:2px;transition:transform .25s,opacity .25s;}
  .hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .hamburger.open span:nth-child(2){opacity:0;}
  .hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  @media (max-width:767px){
    .hamburger{display:flex;}
    .nav-links{
      display:none;flex-direction:column;align-items:stretch;gap:0;
      position:absolute;top:58px;left:0;right:0;background:#fff;
      border-bottom:1px solid var(--line);padding:6px 18px 14px;
      box-shadow:0 8px 20px rgba(0,0,0,.06);
    }
    .nav-links.open{display:flex;}
    .nav-links a{width:100%;padding:11px 0;font-size:15px;color:var(--text);border-bottom:1px solid var(--line);}
    .nav-links a:last-child{border-bottom:none;}
  }
  /* ===== 耗材中心（扩展：品牌×系列） ===== */
  .cons-brands{display:flex;flex-direction:column;gap:28px;margin-top:8px;}
  .cons-brand{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 16px 16px;}
  .cb-head{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--line);}
  .cb-badge{font-size:15px;font-weight:800;color:#fff;background:var(--navy);padding:5px 13px;border-radius:8px;letter-spacing:.5px;white-space:nowrap;}
  .cb-scope{font-size:12.5px;color:var(--muted);}
  .cons-series{display:flex;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:14px;}
  .cons-series:last-child{margin-bottom:0;}
  .cons-series .cs-img{width:200px;max-width:36%;height:auto;align-self:flex-start;border-radius:8px;background:#fff;object-fit:contain;flex:none;}
  .cs-body{flex:1;min-width:0;}
  .cs-body h4{font-size:16px;color:var(--navy);margin-bottom:4px;}
  .cs-desc{font-size:12.5px;color:var(--muted);margin-bottom:10px;}
  .cons-series table{width:100%;border-collapse:collapse;font-size:12.5px;}
  .cons-series thead th{font-size:12px;color:var(--muted);font-weight:600;text-align:left;padding:6px 8px;border-bottom:1px solid var(--line);background:#EEF3F8;}
  .cons-series thead th:last-child{width:118px;}
  .cons-series tbody td{padding:6px 8px;border-bottom:1px dashed var(--line);vertical-align:top;line-height:1.5;}
  .cons-series tbody tr:last-child td{border-bottom:none;}
  .cons-series td:first-child{font-weight:700;color:var(--navy);white-space:nowrap;}
  .cons-series td:last-child{color:var(--orange);font-weight:700;white-space:nowrap;font-size:12.5px;}
  .cons-series td:nth-child(2){color:var(--muted);}
  .cons-series tbody tr:hover td{background:#F7F9FB;}
  .hot{display:inline-block;margin-left:6px;font-size:10.5px;color:#fff;background:var(--orange);padding:1px 7px;border-radius:10px;font-weight:700;vertical-align:middle;letter-spacing:.5px;}
  .scs-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:6px;}
  .scs-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;}
  .scs-card h4{font-size:15px;color:var(--navy);margin-bottom:6px;}
  .scs-card p{font-size:13px;line-height:1.7;color:var(--muted);}
  .scs-note{margin-top:14px;font-size:12.5px;color:var(--muted);}
  .scs-note a{color:var(--orange);font-weight:700;text-decoration:none;}
  @media(max-width:900px){.scs-grid{grid-template-columns:repeat(2,1fr);}}
  @media(max-width:560px){.scs-grid{grid-template-columns:1fr;}}
  @media(max-width:640px){
    .cons-series{flex-direction:column;}
    .cons-series .cs-img{width:100%;max-width:180px;margin:0 auto 10px;}
    .cons-series table{font-size:12px;}
    .cons-series thead th:last-child{width:auto;}
  }


/* ===== 多页导航 active ===== */
.nav-links a.active{color:var(--orange);font-weight:800;}
/* ===== 子页页头 ===== */
.page-head{background:linear-gradient(120deg,#0F2A47,#16375F);color:#fff;padding:56px 0 40px;text-align:center;}
.page-head h1{font-size:30px;margin:0 0 8px;letter-spacing:.5px;}
.page-head p{color:#cfe0f0;font-size:15px;margin:0;}
@media(max-width:560px){.page-head{padding:40px 0 28px;}.page-head h1{font-size:22px;}}
/* ===== 主页服务概览 ===== */
.home-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:6px;}
.h-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 16px;text-align:center;}
.h-card h4{font-size:16px;color:var(--navy);margin-bottom:8px;}
.h-card p{font-size:13px;line-height:1.7;color:var(--muted);margin-bottom:12px;}
.h-card .btn{padding:8px 18px;font-size:13px;}
/* ===== 主页分类按钮 ===== */
.home-cats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:6px;}
.cat-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px 16px;text-align:center;text-decoration:none;transition:.2s;}
.cat-card:hover{border-color:var(--orange);transform:translateY(-2px);box-shadow:0 6px 18px rgba(255,122,0,.12);}
.cat-card b{display:block;font-size:17px;color:var(--navy);margin-bottom:6px;}
.cat-card span{display:block;font-size:12.5px;color:var(--muted);}
@media(max-width:900px){.home-grid,.home-cats{grid-template-columns:repeat(2,1fr);}}
@media(max-width:560px){.home-grid,.home-cats{grid-template-columns:1fr;}}