:root{
  /* 声明纯浅色站点：禁止手机浏览器「自动深色模式」反色（部分手机反色后汉堡三条线消失） */
  color-scheme:light only;
  /* 品牌色：红仅作强调，主色为白 + 中性灰，整体克制大气 */
  --red:#bf1a20;--red-2:#9e151a;--red-3:#d93a40;--red-light:#fdf0f0;
  --ink:#1f2329;--ink-2:#2b3038;--ink-3:#3a3f47;
  --muted:#6b7280;--muted-2:#9aa1ab;
  --bg:#ffffff;--bg2:#f6f7f9;--bg3:#eef0f3;
  --line:#e8eaed;--line-2:#d8dce1;
  --blue:#2563eb;--blue-2:#1d4ed8;--blue-3:#60a5fa;--blue-bg:#eef3fd;
  --shadow:0 10px 30px rgba(20,25,35,.06);
  --shadow-lg:0 20px 50px rgba(20,25,35,.12);
  --shadow-red:0 12px 28px rgba(191,26,32,.22);
  --radius:16px;--radius-sm:10px;
  --maxw:1280px;--header-h:76px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.75;-webkit-font-smoothing:antialiased;margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ===== 线性图标（iconfont / Lucide 风格内联 SVG） ===== */
.ic{width:20px;height:20px;flex-shrink:0;display:inline-block;vertical-align:-0.18em;fill:none}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:999px;font-weight:600;font-size:15px;transition:.25s;border:0;cursor:pointer}
.btn-primary{background:linear-gradient(135deg,var(--red),var(--red-2));color:#fff;box-shadow:var(--shadow-red)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(191,26,32,.30)}
.btn-ghost{background:rgba(255,255,255,.10);color:#fff;border:1px solid rgba(255,255,255,.6);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.22)}
.btn-sm{padding:9px 20px;font-size:14px}
.btn-block{width:100%}

/* Header —— 白底克制，红仅作强调 */
/* position:relative 写在前：老内核不支持 sticky 时退回 relative，保证 .menu{position:absolute;top:100%} 有定位锚点（否则手机端点汉堡菜单弹到一屏外） */
.site-header{position:relative;position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);backdrop-filter:saturate(160%) blur(8px);border-bottom:1px solid var(--line);box-shadow:0 1px 0 rgba(20,25,35,.03)}
.topbar{background:var(--bg2);color:var(--muted);font-size:13px;border-bottom:1px solid var(--line)}
.topbar-in{display:flex;justify-content:space-between;align-items:center;padding:8px 24px;max-width:var(--maxw);margin:0 auto}
.topbar a{color:var(--ink-2);margin-left:18px;transition:.2s}
.topbar a:hover{color:var(--red)}
.nav{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);max-width:var(--maxw);margin:0 auto;padding:0 24px}
.logo{display:flex;align-items:center;gap:12px}
.logo img{height:46px;width:auto}
.logo-txt{display:none}
.menu{display:flex;align-items:center;gap:6px}
.menu>a,.menu>.has-sub>a{position:relative;color:var(--ink-2);font-size:16px;font-weight:500;padding:12px 18px;border-radius:10px;transition:.22s;display:flex;align-items:center;gap:8px}
.menu>a .ic,.menu>.has-sub>a .ic{width:18px;height:18px;transition:.22s}
.menu>a:hover,.menu>.has-sub:hover>a{color:var(--red);background:var(--red-light)}
.menu>a:hover .ic,.menu>.has-sub:hover>a .ic{transform:scale(1.08)}
.menu>a.active{color:var(--red);font-weight:600}
.menu>a.active::after{content:'';position:absolute;left:18px;right:18px;bottom:4px;height:3px;border-radius:2px;background:var(--red)}
.ic-chev{margin-left:1px;opacity:.55;transition:transform .25s}
.has-sub:hover .ic-chev{transform:rotate(180deg)}
.has-sub{position:relative;display:flex;align-items:center}
.sub-toggle{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;margin-left:-2px;border:0;background:transparent;color:var(--ink-2);cursor:pointer;border-radius:6px;transition:.2s;pointer-events:none}
.sub-toggle:hover{color:var(--red);background:var(--red-light)}
.sub{position:absolute;top:calc(100% + 8px);left:0;background:#fff;border-radius:12px;box-shadow:var(--shadow-lg);padding:8px;min-width:210px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.2s;border:1px solid var(--line)}
.has-sub:hover .sub{opacity:1;visibility:visible;transform:translateY(0)}
.sub a{display:block;padding:9px 14px;border-radius:8px;font-size:14px;color:var(--ink);transition:.15s}
.sub a:hover{background:var(--bg2);color:var(--red)}
.search{display:flex;align-items:center}
.search input{border:1px solid var(--line-2);border-radius:999px 0 0 999px;padding:9px 16px;width:170px;outline:none;font-size:13px;background:#fff;color:var(--ink);transition:.2s}
.search input::placeholder{color:var(--muted-2)}
.search input:focus{border-color:var(--red)}
.search button{border:0;background:linear-gradient(135deg,var(--red),var(--red-2));color:#fff;padding:9px 18px;border-radius:0 999px 999px 0;cursor:pointer;font-weight:500;transition:.2s}
.search button:hover{filter:brightness(1.06)}
.header-actions{display:flex;align-items:center;gap:16px}
.header-phone{display:flex;flex-direction:column;align-items:flex-end;color:var(--ink-2)}
.header-phone small{font-size:12px;color:var(--muted);letter-spacing:.5px}
.header-phone b{font-size:16px;font-weight:700;color:var(--red)}

/* 移动端汉堡按钮 —— 白底上清晰可见 */
/* 汉堡按钮：不依赖 CSS 变量做唯一颜色来源（字面量在前 var 在后），不用 flex gap（Chrome84 前
   不支持，线条会叠死），间隔用相邻兄弟 margin 实现——全内核兼容 */
.menu-toggle{display:none;flex-direction:column;justify-content:center;width:46px;height:42px;background:#fff;border:1px solid #d8dce1;border-color:var(--line-2);border-radius:10px;cursor:pointer;padding:0 11px;transition:.2s}
.menu-toggle span{display:block;width:100%;height:2px;background:#2b3038;background:var(--ink-2);border-radius:2px;transition:.2s}
.menu-toggle span+span{margin-top:5px}
.menu-toggle.open{background:#fdf0f0;background:var(--red-light);border-color:#bf1a20;border-color:var(--red)}
.menu-toggle.open span{background:#bf1a20;background:var(--red)}

/* Hero slider —— 多图背景轮播，中性深色遮罩，红仅作点缀 */
.hero-slider{position:relative;min-height:84vh;display:flex;align-items:center;overflow:hidden;color:#fff;background:#11151b}
.hero-slider .slides{position:absolute;inset:0}
.hero-slider .hslide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;visibility:hidden;transition:opacity .9s ease;display:flex;align-items:center}
.hero-slider .hslide::before{content:'';position:absolute;inset:0;background:linear-gradient(105deg,rgba(16,19,26,.82) 0%,rgba(16,19,26,.52) 55%,rgba(16,19,26,.30) 100%)}
.hero-slider .hslide::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 78% 28%,rgba(191,26,32,.22),transparent 42%)}
.hero-slider .hslide.active{opacity:1;visibility:visible}
.slide-in{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:0 24px;width:100%;padding-top:56px;padding-bottom:130px}
.hero-tag{display:inline-flex;align-items:center;gap:10px;letter-spacing:3px;font-size:12px;color:#dfe6f2;text-transform:uppercase;font-weight:700;margin-bottom:22px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.28);padding:8px 16px;border-radius:999px;backdrop-filter:blur(4px)}
.hero-slider h1{font-size:clamp(36px,5.2vw,64px);font-weight:800;line-height:1.15;margin:0 0 22px;max-width:760px;letter-spacing:-1px}
.hero-slider p{font-size:clamp(16px,2vw,20px);max-width:620px;margin-bottom:34px;color:rgba(255,255,255,.86);line-height:1.85}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
/* 轮播控制：箭头 + 切换点 */
.slider-arrow{position:absolute;top:46%;transform:translateY(-50%);z-index:4;width:50px;height:50px;border-radius:50%;border:0;background:rgba(16,19,26,.42);color:#fff;font-size:28px;line-height:1;cursor:pointer;display:grid;place-items:center;transition:.2s;backdrop-filter:blur(4px)}
.slider-arrow:hover{background:linear-gradient(135deg,var(--red),var(--red-2));transform:translateY(-50%) scale(1.06)}
.slider-arrow.prev{left:22px}
.slider-arrow.next{right:22px}
.slider-dots{position:absolute;left:0;right:0;bottom:126px;z-index:4;display:flex;gap:10px;justify-content:center}
.slider-dot{width:11px;height:11px;border-radius:50%;background:rgba(255,255,255,.42);cursor:pointer;transition:.25s;border:0;padding:0}
.slider-dot.active{background:#fff;width:30px;border-radius:6px}
.hero-stats{position:absolute;bottom:0;left:0;right:0;z-index:3;background:linear-gradient(0deg,rgba(16,19,26,.92),transparent);padding:48px 0 38px}
.hs-grid{max-width:var(--maxw);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.hs-item{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(10px);border-radius:var(--radius);padding:22px 24px;text-align:center;transition:.25s}
.hs-item:hover{background:rgba(255,255,255,.14);transform:translateY(-4px)}
.hs-item b{display:block;font-size:34px;font-weight:800;color:#fff;line-height:1}
.hs-item b span{color:#ff9ea1}
.hs-item span{display:block;font-size:13px;color:rgba(255,255,255,.78);margin-top:8px;letter-spacing:.5px}

/* Sections */
.sec{padding:88px 0}
.sec-alt{background:var(--bg2)}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:44px;gap:20px;flex-wrap:wrap}
.sec-head h2{font-size:32px;font-weight:800;margin:8px 0 0;letter-spacing:-.5px;color:var(--ink)}
.sec-en{display:block;font-size:13px;letter-spacing:3px;color:var(--red);font-weight:700;text-transform:uppercase}
.sec-en::before{content:'';display:inline-block;width:8px;height:8px;background:var(--red);border-radius:50%;margin-right:10px;vertical-align:middle}
.sec-desc{margin:10px 0 0;color:var(--muted);font-size:15px;max-width:640px;line-height:1.7}
.more{color:var(--red);font-weight:700;font-size:15px;display:inline-flex;align-items:center;gap:4px;transition:.2s;border:1px solid var(--line);padding:9px 18px;border-radius:999px;background:#fff}
.more:hover{color:#fff;background:linear-gradient(135deg,var(--red),var(--red-2));border-color:transparent;gap:8px}

/* 优势 */
.sec-why{background:#fff;border-bottom:1px solid var(--line)}
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.why{display:flex;gap:18px;align-items:flex-start;background:#fff;border-radius:var(--radius);padding:28px 30px;box-shadow:var(--shadow);border:1px solid var(--line);transition:.25s;position:relative;overflow:hidden}
.why::before{content:'';position:absolute;left:0;top:0;width:4px;height:0;background:linear-gradient(180deg,var(--red),var(--red-2));transition:.25s}
.why:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.why:hover::before{height:100%}
.why-ic{width:56px;height:56px;border-radius:14px;background:var(--red-light);display:grid;place-items:center;color:var(--red);margin-bottom:0;flex-shrink:0}
.why-ic .ic{width:30px;height:30px}
.why-body{flex:1;min-width:0}
.why h3{font-size:19px;font-weight:700;margin:2px 0 10px;color:var(--ink)}
.why p{font-size:14px;color:var(--muted);margin:0;line-height:1.85}

/* 服务流程 */
.sec-flow{background:var(--bg2)}
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:step}
.flow-step{display:flex;gap:14px;align-items:flex-start;text-align:left;background:#fff;border-radius:var(--radius);padding:22px 18px;box-shadow:var(--shadow);border:1px solid var(--line);transition:.25s;position:relative}
.flow-step:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.flow-n{display:flex;align-items:center;justify-content:center;width:42px;height:42px;flex-shrink:0;border-radius:50%;background:linear-gradient(135deg,var(--red),var(--red-2));color:#fff;font-size:17px;font-weight:800;font-style:normal;box-shadow:0 8px 18px rgba(191,26,32,.22)}
.flow-body{flex:1;min-width:0}
.flow-step h3{font-size:16px;font-weight:700;margin:2px 0 8px;color:var(--ink)}
.flow-step p{font-size:13px;color:var(--muted);margin:0;line-height:1.75}

/* Product cards */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{background:var(--bg);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s;border:1px solid var(--line);display:flex;flex-direction:column}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:var(--red-3)}
.card-img{height:190px;background-size:cover;background-position:center;position:relative;overflow:hidden}
.card-img::after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(16,19,26,.30),transparent 60%);opacity:0;transition:.3s}
.card:hover .card-img::after{opacity:1}
.card-body{padding:22px 20px 24px;flex:1;display:flex;flex-direction:column}
.card-body h3{font-size:18px;font-weight:700;margin:0 0 10px;color:var(--ink)}
.card-body p{font-size:13.5px;color:var(--muted);line-height:1.7;margin:0 0 16px;flex:1}
.card-link{color:var(--red);font-weight:700;font-size:14px;display:inline-flex;align-items:center;gap:4px;margin-top:auto}
.card:hover .card-link{gap:8px}

/* Case cards */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.case{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s;display:block;height:320px;background:#11151b}
.case:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.case-img{position:absolute;inset:0;background-size:cover;background-position:center;transition:.5s}
.case:hover .case-img{transform:scale(1.08)}
.case-overlay{position:absolute;inset:0;background:linear-gradient(0deg,rgba(16,19,26,.90) 0%,rgba(16,19,26,.28) 50%,transparent 100%);display:flex;flex-direction:column;justify-content:flex-end;padding:24px;color:#fff;transition:.3s}
.case-cat{position:absolute;left:18px;top:18px;background:var(--red);color:#fff;font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px}
.case-overlay h3{font-size:20px;font-weight:700;margin:0 0 8px}
.case-overlay p{font-size:14px;color:rgba(255,255,255,.86);margin:0;line-height:1.6}

/* News cards */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news{display:flex;background:var(--bg);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);transition:.3s}
.news:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.news-img{width:220px;min-height:170px;background-size:cover;background-position:center;flex-shrink:0}
.news-body{padding:22px 24px;flex:1;display:flex;flex-direction:column;justify-content:center}
.news-date{font-size:12px;color:var(--red);font-weight:700;letter-spacing:.5px;margin-bottom:8px}
.news-body h3{font-size:17px;font-weight:700;margin:0 0 10px;line-height:1.45;color:var(--ink)}
.news-body p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.7}

/* CTA —— 深色克制，红仅作按钮 */
.cta{position:relative;padding:80px 0;background:linear-gradient(135deg,#1f2329 0%,#11151b 100%);color:#fff;overflow:hidden}
.cta::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 18% 80%,rgba(191,26,32,.20),transparent 50%);pointer-events:none}
.cta-in{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;align-items:center;gap:30px}
.cta-in h2{font-size:32px;font-weight:800;margin:0 0 10px}
.cta-in p{font-size:16px;color:rgba(255,255,255,.82);margin:0}

/* Inner page banner（横幅图 + 半透明文案叠加） + 标题条 */
.page-banner{height:320px;background-size:cover;background-position:center;position:relative;overflow:hidden;display:flex;align-items:center}
.banner-cap{position:relative;z-index:2;max-width:680px;padding:26px 0}
.banner-cap h1,.banner-cap-t{font-size:clamp(26px,3.4vw,40px);font-weight:800;color:#fff;margin:0;line-height:1.2;text-shadow:0 2px 14px rgba(0,0,0,.45)}
.banner-cap p{margin:14px 0 0;color:rgba(255,255,255,.82);font-size:clamp(14px,1.6vw,18px);line-height:1.7;max-width:560px;text-shadow:0 1px 8px rgba(0,0,0,.35)}
/* 半透明文案：直接叠加在 banner 图上，不加深色面板，文字本身半透明并带阴影 */
.page-title{background:#fff;border-bottom:1px solid var(--line);padding:18px 0;box-shadow:0 8px 24px rgba(20,25,35,.05)}
.page-title .wrap{position:relative;z-index:1}
.page-title h1{font-size:34px;font-weight:800;margin:6px 0 4px;color:var(--ink);letter-spacing:-.5px}
.page-title .pt-sub{color:var(--muted);font-size:15px;margin:0;letter-spacing:.5px}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:4px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--red)}

/* Content */
.content{max-width:860px;margin:0 auto;font-size:16px;line-height:1.9;color:var(--ink)}
.content h2,.content h3{font-weight:800;margin:36px 0 16px;color:var(--ink)}
.content p{margin:0 0 18px;color:var(--muted-2)}
.content ul,.content ol{margin:0 0 18px;padding-left:24px;color:var(--muted-2)}
.content li{margin-bottom:8px;line-height:1.9}
.content li:last-child{margin-bottom:0}
.content li::marker{color:var(--red)}
.content b,.content strong{color:var(--ink-2);font-weight:700}
.content h2,.content h3{color:var(--ink)}
.content h3{font-size:19px;position:relative;padding-left:14px}
.content h3::before{content:'';position:absolute;left:0;top:.55em;width:4px;height:.95em;border-radius:2px;background:var(--red)}
.content img{border-radius:var(--radius-sm);margin:24px auto;box-shadow:var(--shadow);max-width:50%;height:auto;display:block}
.content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px}
.content th,.content td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.content th{background:var(--bg2);font-weight:700;color:var(--red-2)}

/* Lists */
.list-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:30px}
.list-card{background:var(--bg);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);transition:.3s}
.list-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.list-card-img{height:200px;background-size:cover;background-position:center}
.list-card-body{padding:20px}
.list-card-body h3{font-size:17px;font-weight:700;margin:0 0 8px;color:var(--ink)}
.list-card-body p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.7}

/* Pagination */
.pager{display:flex;justify-content:center;gap:8px;margin-top:40px;flex-wrap:wrap}
.pager a,.pager span{padding:9px 16px;border-radius:8px;font-size:14px;font-weight:600;border:1px solid var(--line);background:#fff;color:var(--muted)}
.pager a:hover{background:var(--bg2);color:var(--red);border-color:var(--red)}
.pager .current{background:linear-gradient(135deg,var(--red),var(--red-2));color:#fff;border-color:transparent}

/* Search */
.search-page{padding:40px 0 90px}
.search-form{max-width:700px;margin:0 auto 40px;display:flex;gap:0}
.search-form input{flex:1;padding:16px 24px;border:1px solid var(--line);border-radius:999px 0 0 999px;font-size:16px;outline:none}
.search-form button{border:0;background:linear-gradient(135deg,var(--red),var(--red-2));color:#fff;padding:16px 32px;border-radius:0 999px 999px 0;font-weight:600;cursor:pointer}
.search-form button:hover{filter:brightness(1.06)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start}
.contact-info{background:linear-gradient(135deg,#1f2329,#11151b);color:#fff;border-radius:var(--radius);padding:36px}
.contact-info h3{font-size:22px;font-weight:700;margin:0 0 22px}
.ci-item{display:flex;gap:16px;margin-bottom:22px}
.ci-item i{width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.12);display:grid;place-items:center;color:#fff;font-size:18px;flex-shrink:0;font-style:normal}
.ci-item i .ic{width:20px;height:20px}
.ci-item b{display:block;font-size:15px;margin-bottom:3px}
.ci-item span{font-size:14px;color:rgba(255,255,255,.82)}
.contact-form{background:var(--bg);border-radius:var(--radius);padding:36px;box-shadow:var(--shadow);border:1px solid var(--line)}
.contact-form h3{font-size:22px;font-weight:700;margin:0 0 22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
.form-group label{display:block;font-size:13px;font-weight:600;margin-bottom:7px;color:var(--muted)}
.form-group input,.form-group textarea{width:100%;padding:13px 16px;border:1px solid var(--line);border-radius:var(--radius-sm);font-size:15px;outline:none;transition:.2s}
.form-group input:focus,.form-group textarea:focus{border-color:var(--red);box-shadow:0 0 0 3px rgba(191,26,32,.08)}
.form-group textarea{min-height:120px;resize:vertical}

/* Footer —— 深色，新增顶部联系方式条，移动端更饱满 */
.site-footer{background:#1f2329;color:#c7ccd3;padding:0 0 0}
.foot-top{background:#11151b;border-bottom:1px solid rgba(255,255,255,.08)}
.foot-top-in{max-width:var(--maxw);margin:0 auto;padding:22px 24px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.foot-top-item{display:flex;align-items:center;gap:14px}
.foot-top-item .ft-ic{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--red),var(--red-2));display:grid;place-items:center;font-size:18px;color:#fff;flex-shrink:0}
.foot-top-item .ft-ic .ic{width:20px;height:20px}
.foot-top-item b{display:block;font-size:13px;color:#9aa1ab;font-weight:500;margin-bottom:2px}
.foot-top-item span,.foot-top-item a{font-size:15px;color:#fff;font-weight:600}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;max-width:var(--maxw);margin:0 auto;padding:56px 24px 50px}
.foot-col h4{color:#fff;font-size:16px;font-weight:700;margin:0 0 20px;position:relative;padding-bottom:10px}
.foot-col h4::after{content:'';position:absolute;left:0;bottom:0;width:30px;height:3px;background:var(--red);border-radius:2px}
.foot-col .foot-logo-chip{display:inline-flex;background:#fff;border-radius:12px;padding:10px 14px;box-shadow:0 8px 22px rgba(0,0,0,.28);margin-bottom:18px}
.foot-col .foot-logo-chip img{height:44px;width:auto}
.foot-addr{line-height:1.8;margin:0 0 14px;font-size:14px;color:#aab1ba}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-col li{margin-bottom:10px}
.foot-col a{color:#c7ccd3;font-size:14px;transition:.2s}
.foot-col a:hover{color:var(--red-3);padding-left:4px}
/* 产品中心列表：一行两列（桌面+移动统一），页面更紧凑充实 */
.foot-col.foot-prods ul{display:grid;grid-template-columns:1fr 1fr;gap:8px 24px}
.foot-col.foot-prods li{margin-bottom:0}
/* 热门关键词：独立整行，一行多个，不再一行一个 */
.foot-tags-bar{border-top:1px solid rgba(255,255,255,.06);padding:18px 0 6px}
.foot-tags-bar .wrap{display:flex;align-items:flex-start;gap:16px;flex-wrap:wrap}
.ftb-label{flex-shrink:0;padding-top:6px;color:#fff;font-size:14px;font-weight:700;letter-spacing:.5px}
.foot-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:0;flex:1;min-width:0}
.foot-tags a{display:inline-block;padding:6px 13px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.05);border-radius:999px;font-size:12.5px;color:#9aa1ab;white-space:nowrap;transition:.2s}
.foot-tags a:hover{background:var(--red);border-color:var(--red);color:#fff}
/* 页脚二维码：缩小并靠左（提高优先级，避免被后方的 .kefu-qrcode{width:180px;margin:auto} 反向覆盖） */
.foot-grid .foot-qr{width:110px;height:110px;margin:0 0 10px;border-radius:10px;background:#fff;padding:6px}
.foot-contact-txt{font-size:14px;line-height:1.8;margin:0 0 12px;color:#aab1ba}
.foot-contact-txt a{color:#c7ccd3}
/* 友情链接（弱化展现，不抢视觉） */
.foot-links{border-top:1px solid rgba(255,255,255,.06);background:#191d23;padding:15px 0}
.foot-links .wrap{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.fl-label{font-size:12px;color:#727a84;font-weight:600;letter-spacing:.5px;flex-shrink:0}
.fl-list{display:flex;flex-wrap:wrap;gap:6px 18px}
.fl-list a{font-size:13px;color:#868d96;transition:.2s}
.fl-list a:hover{color:#c7ccd3}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 0;background:#11151b}
.foot-bottom .wrap{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:#9aa1ab}
.foot-bottom a{color:#c7ccd3}

/* 底部悬浮导航（移动端） */
.float-nav{position:fixed;left:0;right:0;bottom:0;z-index:9999;background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 20px rgba(0,0,0,.08);display:none;grid-template-columns:repeat(3,1fr);height:62px}
.float-nav a,.float-nav button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:12px;color:var(--ink-2);background:#fff;border:0;border-right:1px solid var(--line);cursor:pointer;transition:.2s}
.float-nav a:last-child,.float-nav button:last-child{border-right:0}
.float-nav a:hover,.float-nav button:hover{color:var(--red);background:var(--red-light)}
.float-nav .ic{width:20px;height:20px;margin-bottom:2px}
.float-nav a,.float-nav button{font-size:12px;line-height:1.2}
.float-nav .kefu{color:#fff;background:linear-gradient(135deg,var(--red),var(--red-2))}
.float-nav .kefu:hover{color:#fff;background:linear-gradient(135deg,var(--red-3),var(--red))}

/* 电话悬浮弹层（固话 + 手机） */
.fn-pop{position:fixed;left:50%;transform:translateX(-50%) translateY(10px);bottom:78px;z-index:10000;background:#fff;border-radius:14px;box-shadow:var(--shadow-lg);padding:14px;width:248px;opacity:0;visibility:hidden;transition:.2s;border:1px solid var(--line)}
.fn-pop.on{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.fn-pop-h{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:8px;padding-bottom:8px;border-bottom:1px solid var(--line)}
.fn-pop-row{display:flex;justify-content:space-between;align-items:center;padding:10px 6px;border-radius:8px;transition:.15s}
.fn-pop-row:hover{background:var(--bg2)}
.fn-pop-label{font-size:13px;color:var(--muted)}
.fn-pop-val{font-size:15px;font-weight:700;color:var(--red)}

/* 客服弹窗（移动端微信客服） */
.kefu-modal{display:none;position:fixed;inset:0;z-index:10001;background:rgba(0,0,0,.55);align-items:center;justify-content:center;padding:20px}
.kefu-modal.on{display:flex}
.kefu-box{background:#fff;border-radius:var(--radius);max-width:360px;width:100%;padding:24px;position:relative;box-shadow:var(--shadow-lg);text-align:center;animation:pop .25s ease}
@keyframes pop{from{opacity:0;transform:translateY(20px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}
.kefu-close{position:absolute;top:12px;right:12px;width:32px;height:32px;border:0;background:var(--bg2);border-radius:50%;font-size:20px;color:var(--muted);cursor:pointer}
.kefu-close:hover{background:var(--red-light);color:var(--red)}
.kefu-box h3{margin:0 0 6px;font-size:20px;color:var(--ink)}
.kefu-box .sub{color:var(--muted);font-size:13px;margin:0 0 18px}
.kefu-qrcode{width:180px;height:180px;margin:0 auto 16px;background:var(--bg2);border-radius:var(--radius-sm);display:grid;place-items:center;overflow:hidden;border:1px solid var(--line)}
.kefu-qrcode img{width:100%;height:100%;object-fit:contain}
.kefu-qrcode .no-qrcode{color:var(--muted);font-size:13px}
.kefu-info{text-align:left;background:var(--bg2);border-radius:var(--radius-sm);padding:14px 16px;margin-bottom:16px}
.kefu-info p{margin:0 0 8px;font-size:14px;color:var(--ink)}
.kefu-info p:last-child{margin-bottom:0}
.kefu-info strong{color:var(--red);font-weight:700}
.kefu-btn{display:block;width:100%;padding:12px;background:linear-gradient(135deg,var(--red),var(--red-2));color:#fff;border-radius:999px;font-weight:600}

/* PC 右侧悬浮客服 */
.pc-kefu{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:9990;display:flex;flex-direction:column;gap:12px}
.pk-item{width:56px;height:56px;border-radius:14px;background:#fff;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--ink-2);border:1px solid var(--line);cursor:pointer;transition:.2s;font-size:11px;font-weight:600;padding:0}
.pk-item .ic{width:22px;height:22px;margin-bottom:2px}
.pk-item:hover{color:#fff;background:linear-gradient(135deg,var(--red),var(--red-2));transform:translateY(-2px);border-color:transparent}
.pk-item.pk-msg{background:linear-gradient(135deg,var(--red),var(--red-2));color:#fff}
.pk-item.pk-msg:hover{filter:brightness(1.07)}
.pk-pop{position:fixed;right:84px;top:50%;transform:translateY(-50%);z-index:9991;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:16px;width:200px;display:none;border:1px solid var(--line)}
.pk-pop.on{display:block;animation:pop .2s ease}
.pk-pop h4{margin:0 0 10px;font-size:14px;color:var(--ink);text-align:center}
.pk-pop .pk-qr{width:160px;height:160px;background:var(--bg2);border-radius:var(--radius-sm);overflow:hidden;display:grid;place-items:center}
.pk-pop .pk-qr img{width:100%;height:100%;object-fit:contain}
.pk-pop p{margin:10px 0 0;font-size:13px;color:var(--ink);text-align:center;font-weight:600}
.pk-pop .pk-row{display:flex;flex-direction:column;align-items:flex-start;gap:4px;padding:10px 12px;border-radius:10px;background:var(--bg2);margin-top:9px;text-decoration:none;transition:.15s;white-space:nowrap}
.pk-pop .pk-row:hover{background:var(--red-light)}
.pk-pop .pk-row span{font-size:12px;color:var(--muted)}
.pk-pop .pk-row b{font-size:15px;color:var(--ink);font-weight:700}
.pk-pop .pk-row:hover b{color:var(--red)}
.pk-pop .pk-noqr{color:var(--muted);font-size:12px;font-weight:400}

/* 留言弹窗（PC 咨询） */
.msg-modal{display:none;position:fixed;inset:0;z-index:10002;background:rgba(16,19,26,.55);align-items:center;justify-content:center;padding:20px}
.msg-modal.on{display:flex}
.msg-box{background:#fff;border-radius:var(--radius);max-width:420px;width:100%;padding:30px;position:relative;box-shadow:var(--shadow-lg);animation:pop .25s ease}
.msg-close{position:absolute;top:14px;right:14px;width:32px;height:32px;border:0;background:var(--bg2);border-radius:50%;font-size:20px;color:var(--muted);cursor:pointer}
.msg-close:hover{background:var(--red-light);color:var(--red)}
.msg-box h3{margin:0 0 6px;font-size:22px;color:var(--ink)}
.msg-box .sub{color:var(--muted);font-size:14px;margin:0 0 22px}
.msg-form .form-group{margin-bottom:14px}
.msg-form input,.msg-form textarea{width:100%;padding:12px 15px;border:1px solid var(--line);border-radius:var(--radius-sm);font-size:15px;outline:none;transition:.2s;font-family:var(--font)}
.msg-form input:focus,.msg-form textarea:focus{border-color:var(--red);box-shadow:0 0 0 3px rgba(191,26,32,.08)}
.msg-form textarea{min-height:96px;resize:vertical}
.msg-ok{display:none;background:var(--red-light);color:var(--red-2);border:1px solid #f3c9cb;border-radius:var(--radius-sm);padding:10px 14px;margin-bottom:16px;font-size:14px}
.msg-ok.on{display:block}

/* Utilities */
.text-center{text-align:center}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.page-section{padding:60px 0 90px}

/* Filter tabs */
.filter-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:34px}
.filter-tabs a{padding:9px 20px;border-radius:999px;font-size:14px;font-weight:600;background:#fff;border:1px solid var(--line);color:var(--muted);transition:.2s}
.filter-tabs a:hover{color:var(--red);border-color:var(--red)}
.filter-tabs a.on{background:linear-gradient(135deg,var(--red),var(--red-2));color:#fff;border-color:transparent}
.m-cat-select{display:none}

/* Product / case detail */
.product-detail{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:start;margin-bottom:60px}
.product-media{position:sticky;top:100px}
.product-main-img{height:460px;border-radius:var(--radius);background-size:cover;background-position:center;box-shadow:var(--shadow)}
.product-info h2{font-size:32px;font-weight:800;margin:0 0 14px;color:var(--ink)}
.product-info .lead{font-size:16px;color:var(--muted);line-height:1.8;margin:0 0 24px}
.spec-box{background:var(--bg2);border-radius:var(--radius);padding:22px 24px;margin-bottom:24px;border:1px solid var(--line)}
.spec-box h4{font-size:15px;font-weight:700;color:var(--red-2);margin:0 0 10px}
.spec-box p{margin:0;font-size:14px;color:var(--muted);line-height:1.7}
.spec-content{font-size:14px;color:var(--muted);line-height:1.7}
.spec-content p{margin:0 0 8px}
.spec-content p:last-child{margin-bottom:0}
.meta-list{list-style:none;margin:0;padding:0}
.meta-list li{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
.meta-list li:last-child{border-bottom:0}
.meta-list li span{color:var(--muted)}
.detail-actions{display:flex;gap:14px;flex-wrap:wrap}

/* News list */
.news-list{display:flex;flex-direction:column;gap:20px}
.news-row{display:flex;gap:22px;background:var(--bg);border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);transition:.25s}
.news-row:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.news-row-img{width:260px;min-height:180px;background-size:cover;background-position:center;flex-shrink:0}
.news-row-body{padding:24px 26px;flex:1;display:flex;flex-direction:column;justify-content:center}
.news-row-date{font-size:12px;color:var(--red);font-weight:700;letter-spacing:.5px;margin-bottom:8px}
.news-row-body h3{font-size:18px;font-weight:700;margin:0 0 10px;line-height:1.45;color:var(--ink)}
.news-row-body p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}

/* Article */
.article-head{margin-bottom:30px}
.article-meta{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.article-cover{height:420px;border-radius:var(--radius);background-size:cover;background-position:center;margin-bottom:40px;box-shadow:var(--shadow)}
.content.article-content{max-width:100%}
.article-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:40px;padding-top:30px;border-top:1px solid var(--line)}
.article-tags a{padding:7px 14px;background:var(--bg2);border-radius:999px;font-size:13px;color:var(--muted);transition:.2s}
.article-tags a:hover{background:linear-gradient(135deg,var(--red),var(--red-2));color:#fff}
.article-inline img{width:auto;max-width:50%;border-radius:var(--radius-sm);margin:24px auto;display:block}

/* 详情页上下篇导航 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:48px}
.pn{display:flex;flex-direction:column;gap:6px;padding:18px 20px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:.2s;min-width:0}
.pn:hover{border-color:var(--red);box-shadow:var(--shadow);transform:translateY(-2px)}
.pn-next{text-align:right;align-items:flex-end}
.pn-lbl{font-size:12px;color:var(--muted);font-weight:600;letter-spacing:.5px}
.pn-prev .pn-lbl::before{content:'‹ '}
.pn-next .pn-lbl::after{content:' ›'}
.pn-tit{font-size:15px;font-weight:700;color:var(--ink);line-height:1.45;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.pn-empty{color:var(--muted-2);background:transparent;border-style:dashed;align-items:center;justify-content:center;text-align:center;font-size:14px}

/* About */
.about-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:50px;align-items:start}
.about-text h2{font-size:30px;font-weight:800;margin:12px 0 22px;color:var(--ink)}
.about-aside{position:sticky;top:100px}
.info-box{background:var(--bg2);border-radius:var(--radius);padding:28px;border:1px solid var(--line)}
.info-box h4{font-size:17px;font-weight:700;color:var(--red-2);margin:0 0 18px}
.info-box p{font-size:14px;color:var(--muted);margin:0 0 12px;line-height:1.7}
.info-box p strong{display:inline-block;width:56px;color:var(--ink)}
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.adv{background:var(--bg);border-radius:var(--radius);padding:28px;border:1px solid var(--line);transition:.25s}
.adv:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.adv b{display:block;font-size:34px;font-weight:800;color:var(--red);margin-bottom:12px}
.adv h3{font-size:18px;font-weight:700;margin:0 0 10px;color:var(--ink)}
.adv p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}

/* Form messages */
.form-ok{background:var(--red-light);color:var(--red-2);border:1px solid #f6c5c7;border-radius:var(--radius-sm);padding:12px 16px;margin-bottom:20px;font-size:14px}

/* ================= 产品详情页（清爽大气版） ================= */
.pd-page{padding-top:6px}
.pd-page .product-detail{gap:56px;margin-bottom:0}
.pd-page .product-media{position:sticky;top:100px}
.pd-page .product-main-img{height:480px;background-color:var(--bg3);box-shadow:var(--shadow-lg);transition:.35s}
.pd-thumbs{display:flex;gap:12px;margin-top:14px;flex-wrap:wrap}
.pd-thumb{width:88px;height:66px;border-radius:10px;background-size:cover;background-position:center;cursor:pointer;border:2px solid transparent;box-shadow:0 2px 8px rgba(20,25,35,.08);opacity:.72;transition:.22s;background-color:var(--bg3)}
.pd-thumb:hover{opacity:1;transform:translateY(-2px)}
.pd-thumb.on{opacity:1;border-color:var(--red);box-shadow:0 6px 16px rgba(191,26,32,.18)}
.pd-cat{display:inline-block;font-size:12px;font-weight:700;letter-spacing:1.5px;color:var(--red);background:var(--red-light);border-radius:999px;padding:6px 14px;margin-bottom:16px}
.pd-page .product-info h2{font-size:34px;line-height:1.3;margin:0 0 16px}
.pd-page .product-info .lead{font-size:16px;color:var(--muted);line-height:1.9;margin:0 0 26px;padding-bottom:26px;border-bottom:1px dashed var(--line-2)}
.pd-page .spec-box{border-radius:14px;padding:20px 22px;background:linear-gradient(180deg,#fbfcfd,var(--bg2))}
.pd-facts{list-style:none;margin:0 0 26px;padding:0;border-top:1px solid var(--line)}
.pd-facts li{display:flex;gap:16px;align-items:baseline;padding:13px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.pd-facts li b{flex:0 0 74px;font-weight:700;color:var(--ink);font-size:14px}
.pd-facts li b::after{content:''}
.pd-facts li span{color:var(--muted);line-height:1.7}
.btn-line{background:#fff;color:var(--ink);border:1px solid var(--line-2)}
.btn-line:hover{border-color:var(--red);color:var(--red);transform:translateY(-2px);box-shadow:0 10px 24px rgba(20,25,35,.08)}
.pd-contact{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:26px;padding:20px 22px;border-radius:14px;background:var(--bg2);border:1px solid var(--line)}
.pd-contact div{display:flex;flex-direction:column;gap:4px;min-width:0}
.pd-contact b{font-size:12px;color:var(--muted-2);font-weight:600;letter-spacing:.5px}
.pd-contact a,.pd-contact span{font-size:18px;font-weight:800;color:var(--ink);letter-spacing:.3px}
.pd-contact a:hover{color:var(--red)}
/* 信任数据条 */
.pd-trust{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:16px;overflow:hidden;margin:56px 0 64px}
.pd-trust-item{background:#fff;padding:28px 20px;text-align:center;transition:.25s}
.pd-trust-item:hover{background:var(--bg2)}
.pd-trust-item b{display:block;font-size:30px;font-weight:800;color:var(--red);line-height:1.2;letter-spacing:-.5px}
.pd-trust-item b span{font-size:18px}
.pd-trust-item span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted)}
/* 内容区块 */
.pd-block{margin-bottom:64px}
.pd-block:last-of-type{margin-bottom:0}
.pd-block-h{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:26px;padding-bottom:18px;border-bottom:1px solid var(--line)}
/* 主标题在上、英文小标题在下作辅助 */
.pbh-t{display:flex;flex-direction:column;gap:5px;min-width:0}
.pd-block-h h3{margin:0;font-size:24px;font-weight:800;color:var(--ink);letter-spacing:-.3px;line-height:1.3}
.pd-block-h .sec-en{margin:0;font-size:12px;letter-spacing:2.5px;color:var(--red);opacity:.85}
.pd-block-h .more{margin-left:auto;padding:8px 16px;font-size:14px}
.pd-block.content{max-width:100%;margin:0 0 64px}
/* 样板展示 */
.pd-gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pd-shot{display:block;height:200px;border-radius:14px;background-size:cover;background-position:center;background-color:var(--bg3);box-shadow:var(--shadow);transition:.3s;position:relative;overflow:hidden}
.pd-shot::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(15,20,28,.35));opacity:0;transition:.3s}
.pd-shot:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.pd-shot:hover::after{opacity:1}
/* 图片查看器 */
.lbx{position:fixed;inset:0;z-index:9999;background:rgba(12,16,22,.88);display:flex;align-items:center;justify-content:center;padding:40px;opacity:0;transition:.25s}
.lbx.on{opacity:1}
.lbx img{max-width:100%;max-height:100%;border-radius:10px;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.lbx-close{position:absolute;top:24px;right:28px;width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.10);color:#fff;font-size:24px;line-height:1;cursor:pointer;transition:.2s}
.lbx-close:hover{background:rgba(255,255,255,.24)}

/* ================= 发展历程（横向滚动时间轴） ================= */
.sec-history{background:linear-gradient(180deg,#fff 0%,#f6f7f9 46%,#eef0f3 100%);position:relative;overflow:hidden}
.sec-history::before{content:'';position:absolute;top:-120px;right:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(191,26,32,.07),transparent 68%);pointer-events:none}
.tl-ctrl{display:flex;gap:10px}
.tl-arrow{width:46px;height:46px;border-radius:50%;border:1px solid var(--line-2);background:#fff;color:var(--ink-2);font-size:22px;line-height:1;cursor:pointer;transition:.22s;box-shadow:var(--shadow)}
.tl-arrow:hover{background:linear-gradient(135deg,var(--red),var(--red-2));color:#fff;border-color:transparent;transform:translateY(-2px);box-shadow:var(--shadow-red)}
.tl-scroll{position:relative;overflow-x:auto;overflow-y:hidden;padding:8px 0 4px;scroll-behavior:smooth;-webkit-overflow-scrolling:touch}
.tl-scroll::-webkit-scrollbar{height:6px}
.tl-scroll::-webkit-scrollbar-track{background:rgba(191,26,32,.07);border-radius:999px}
.tl-scroll::-webkit-scrollbar-thumb{background:rgba(191,26,32,.32);border-radius:999px}
.tl-scroll::-webkit-scrollbar-thumb:hover{background:rgba(191,26,32,.6)}
/* width:max-content 让轨道宽度 = 全部卡片总宽，中轴线才会一路延伸到底 */
.tl-track{position:relative;display:flex;align-items:stretch;height:460px;width:max-content;min-width:100%;padding:0 max(24px,calc((100vw - var(--maxw)) / 2 + 24px))}
.tl-axis{position:absolute;left:0;right:0;top:50%;height:2px;transform:translateY(-1px);background:linear-gradient(90deg,transparent,var(--line-2) 4%,var(--line-2) 96%,transparent)}
.tl-item{position:relative;flex:0 0 320px;width:320px;height:100%}
.tl-dot{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:18px;height:18px;border-radius:50%;background:#fff;border:4px solid var(--red);z-index:3;box-shadow:0 0 0 7px rgba(191,26,32,.10);transition:.25s}
.tl-item:hover .tl-dot{transform:translate(-50%,-50%) scale(1.18);box-shadow:0 0 0 11px rgba(191,26,32,.14)}
.tl-stem{position:absolute;left:50%;width:2px;background:linear-gradient(180deg,var(--line-2),var(--red));z-index:1}
.side-bottom .tl-stem{top:50%;height:46px}
.side-top .tl-stem{bottom:50%;height:46px;background:linear-gradient(0deg,var(--line-2),var(--red))}
.tl-card{position:absolute;left:14px;right:14px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 22px 24px;box-shadow:var(--shadow);transition:.28s;z-index:2}
.tl-item:hover .tl-card{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(191,26,32,.28)}
.side-bottom .tl-card{top:calc(50% + 46px)}
.side-top .tl-card{bottom:calc(50% + 46px)}
.tl-year{display:inline-block;font-size:30px;font-weight:800;color:var(--red);line-height:1;letter-spacing:-.5px;margin-bottom:12px;font-family:"DIN Alternate","Helvetica Neue",Arial,sans-serif}
.tl-year i{font-size:14px;font-style:normal;margin-left:3px;color:var(--red-3)}
.tl-card h3{margin:0 0 10px;font-size:17px;font-weight:700;line-height:1.6;color:var(--ink)}
.tl-card p{margin:0;font-size:13.5px;line-height:1.8;color:var(--muted)}
.tl-hint{text-align:center;font-size:13px;color:var(--muted-2);letter-spacing:1px;padding:22px 0 4px}

/* Responsive */
@media (max-width:1100px){
  .card-grid{grid-template-columns:repeat(3,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(3,1fr)}
  .foot-grid{grid-template-columns:repeat(2,1fr)}
  .search{display:none}
  .pd-page .product-detail{grid-template-columns:1fr;gap:34px}
  .pd-page .product-media{position:static}
  .pd-gallery{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:900px){
  .menu{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;padding:10px 20px 16px;gap:0;box-shadow:0 12px 30px rgba(20,25,35,.12);border-bottom:1px solid var(--line)}
  .menu>.has-sub{width:100%;display:flex;flex-wrap:wrap;align-items:center}
  .sub-toggle{pointer-events:auto}
  .menu.open{display:flex}
  .menu>a,.menu>.has-sub>a{color:var(--ink-2);padding:15px 4px;border-bottom:1px solid var(--line);border-radius:0;width:100%;font-size:17px}
  .menu>.has-sub>a{width:auto;flex:1}
  .menu>a .ic,.menu>.has-sub>a .ic{width:20px;height:20px}
  .menu>a.active{background:var(--red-light);color:var(--red);border-radius:10px;padding-left:12px;padding-right:12px}
  .menu>a.active::after{display:none}
  .menu>a:hover,.menu>.has-sub:hover>a{background:var(--red-light);color:var(--red)}
  .menu>.has-sub .sub-toggle .ic-chev{transform:rotate(0deg)}
  .has-sub.open .sub-toggle .ic-chev{transform:rotate(180deg)}
  .sub{position:static;width:100%;flex-basis:100%;max-height:0;opacity:0;overflow:hidden;transform:translateY(-6px);transition:max-height .4s ease,opacity .3s ease,transform .3s ease,margin .3s ease,padding .3s ease;background:#fbfbfc;box-shadow:0 10px 24px rgba(20,25,35,.10);border:1px solid var(--line);border-radius:12px;margin:0;padding:0 10px}
  .has-sub.open .sub{max-height:75vh;opacity:1;transform:none;overflow:visible;margin:10px 0 6px;padding:10px}
  .sub a{padding:13px 14px;font-size:15px;color:var(--ink-2);border-bottom:1px solid var(--line);transition:.15s}
  .sub a:last-child{border-bottom:0}
  .sub a:hover{background:var(--red-light);color:var(--red)}
  .sub-all{margin-top:4px;padding-top:14px !important;border-top:1px dashed var(--line);font-weight:700;color:var(--red) !important}
  .header-phone{display:none}
  .header-actions{display:none}
  .menu-toggle{display:flex;margin-left:auto}
  .hs-grid{grid-template-columns:repeat(2,1fr)}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .news{flex-direction:column}
  .news-img{width:100%;height:200px}
  .product-detail{grid-template-columns:1fr;gap:30px}
  .product-media{position:static}
  .about-grid{grid-template-columns:1fr}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .news-row{flex-direction:column}
  .news-row-img{width:100%;height:200px}
  /* 移动端隐藏 PC 右侧悬浮客服，使用底部悬浮导航 */
  .pc-kefu{display:none}
}
@media (max-width:768px){
  .float-nav{display:grid}
  body{padding-bottom:64px}
  .foot-bottom{padding-bottom:86px}
  /* 手机端：顶部导航条压矮，logo 同步缩小 */
  :root{--header-h:58px}
  .nav{padding:0 14px}
  .logo{gap:8px}
  .logo img{height:36px}
  .menu-toggle{width:42px;height:38px;padding:0 10px}
  .menu-toggle span+span{margin-top:4px}
  /* 移动端：隐藏顶部欢迎条，避免长文字叠加在导航上 */
  .topbar{display:none}
  /* 手机端：栏目分类筛选改为下拉选择器 */
  .filter-tabs{display:none}
  .m-cat-select{display:block;width:100%;padding:13px 42px 13px 16px;border:1px solid var(--line-2);border-radius:10px;font-size:15px;color:var(--ink);background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%239aa1ab' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 14px center;-webkit-appearance:none;appearance:none;box-shadow:0 1px 0 rgba(20,25,35,.03);margin-bottom:24px}
  /* 移动端首页轮播：更紧凑，四数据并成一行 */
  .hero-slider{min-height:58vh}
  .slide-in{padding-top:24px;padding-bottom:116px}
  .hero-slider h1{font-size:24px;letter-spacing:.5px;line-height:1.2;margin-bottom:14px}
  .hero-slider p{font-size:13px;line-height:1.7;margin-bottom:18px}
  .hero-btns{flex-direction:row;gap:10px}
  .hero-btns .btn{flex:1;padding:11px 16px;font-size:14px}
  .hero-tag{font-size:10px;padding:6px 12px;margin-bottom:14px}
  .slider-arrow{width:36px;height:36px;font-size:20px}
  .slider-arrow.prev{left:8px}
  .slider-arrow.next{right:8px}
  .slider-dots{bottom:108px;gap:8px}
  .slider-dot{width:8px;height:8px}.slider-dot.active{width:22px}
  .hero-stats{padding:26px 0 18px}
  .hs-grid{grid-template-columns:repeat(4,1fr);gap:6px;padding:0 16px}
  .hs-item{padding:10px 4px;border-radius:8px}
  .hs-item b{font-size:20px}
  .hs-item b span{font-size:14px}
  .hs-item span{font-size:10px;margin-top:4px;line-height:1.25;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  /* 内页横幅更小 + 文案更紧凑 */
  .page-banner{height:150px}
  .page-banner .banner-cap{padding:14px 16px}
  .banner-cap h1,.banner-cap-t{font-size:20px}
  .banner-cap p{font-size:13px;margin-top:6px}
  /* 移动端：标题更大、留白更克制、内容更饱满大气 */
  .page-header{padding:48px 0 30px}
  .page-header h1{font-size:24px;letter-spacing:.5px}
  .page-header p{font-size:13.5px}
  .sec{padding:36px 0}
  .sec-head{margin-bottom:20px}
  .sec-head h2{font-size:21px;line-height:1.3}
  .sec-en{font-size:11px}
  .sec-desc{font-size:13.5px;line-height:1.65}
  .why-grid,.flow{grid-template-columns:1fr}
  /* 手机端：图标+文字左右结构，缩短页面 */
  .why{display:flex;gap:14px;align-items:flex-start;text-align:left;padding:16px 16px}
  .why-ic{margin-bottom:0;flex-shrink:0}
  .why h3{margin:0 0 6px;font-size:17px}
  .why p{font-size:13px}
  .flow{gap:12px}
  .flow-step{display:flex;gap:16px;align-items:center;padding:18px 18px}
  .flow-n{margin-bottom:0;flex-shrink:0;font-size:24px}
  .flow-step h3{margin:0 0 4px;font-size:16px}
  .flow-step p{font-size:12.5px}
  .card-grid,.case-grid,.list-grid{grid-template-columns:1fr}
  .card-img{height:200px}
  .case{height:240px}
  .cta-in{flex-direction:column;text-align:center;gap:18px;padding:0 14px}
  .cta-in h2{font-size:23px;line-height:1.35}
  .cta-in div>p{font-size:12px;line-height:1.7;margin:0 0 0}
  .cta-in .btn{width:100%}
  /* ===== 手机端页脚：整体收紧，避免占据过长的一屏 ===== */
  /* 顶部条：热线 + 微信 两列一行（公司地址过长，改由下方公司信息区展示） */
  .foot-top-in{grid-template-columns:repeat(2,1fr);gap:6px;padding:10px 12px}
  .foot-top-item:nth-child(3){display:none}
  .foot-top-item{flex-direction:column;align-items:center;text-align:center;gap:4px}
  .foot-top-item .ft-ic{width:30px;height:30px;border-radius:9px}
  .foot-top-item .ft-ic .ic{width:15px;height:15px}
  .foot-top-item b{font-size:11px;margin-bottom:0;line-height:1.3}
  .foot-top-item span,.foot-top-item a{font-size:13px;line-height:1.35;word-break:break-all}
  /* 手机端：隐藏「快速导航」，公司信息 / 联系我们 并排，产品中心独占一行两列 */
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:11px 12px;padding:13px 14px 11px}
  .foot-col.foot-nav{display:none}
  /* 手机端三段各占整行：公司信息 / 产品中心(两列) / 联系我们(二维码左+文字右)，铺满不留空 */
  .foot-col:first-child{grid-column:1/-1}
  .foot-col.foot-prods{grid-column:1/-1}
  .foot-col:last-child{grid-column:1/-1}
  /* 公司信息段：地址整行；电话/手机左侧竖排，logo 右侧跨两行居中靠右；微信整行落底 */
  .foot-col:first-child{display:grid;grid-template-columns:1fr auto;align-items:center;row-gap:3px}
  .foot-addr{grid-column:1/-1;grid-row:1;margin:0 0 4px;font-size:13px;line-height:1.55}
  .foot-col:first-child>p.foot-tel{grid-column:1;grid-row:2;margin:0;font-size:12.5px;line-height:1.6}
  .foot-col:first-child>p.foot-mob{grid-column:1;grid-row:3;margin:0;font-size:12.5px;line-height:1.6}
  .foot-col:first-child>p.foot-wx{grid-column:1;grid-row:4;margin:5px 0 0;font-size:12.5px;line-height:1.6}
  .foot-col .foot-logo-chip{grid-column:2;grid-row:2/5;justify-self:end;align-self:center;margin:0;padding:6px 10px;border-radius:10px}
  /* 手机端 logo 再缩小一档，给内容让空间 */
  .foot-logo-chip img{height:26px}
  .foot-addr{margin:0 0 4px;font-size:13px;line-height:1.55}
  .foot-col:first-child p{margin:0 0 2px;font-size:13px;line-height:1.5}
  .foot-col h4{font-size:15px;margin-bottom:8px;padding-bottom:6px}
  .foot-col li{margin-bottom:4px}
  .foot-col a{font-size:13px}
  /* 产品中心列表两列（继承桌面规则，间距收紧） */
  .foot-col.foot-prods ul{gap:4px 10px}
  /* 联系我们：二维码靠左 + 文字信息右侧，文字相对二维码上下居中 */
  .foot-col:last-child{display:grid;grid-template-columns:auto 1fr;column-gap:14px;align-items:center}
  .foot-col:last-child h4{grid-column:1/-1;margin-bottom:8px;padding-bottom:6px}
  .foot-col:last-child .foot-qr{grid-column:1;grid-row:2;width:84px;height:84px;margin:0;align-self:center}
  .foot-col:last-child p.foot-contact-txt{grid-column:2;grid-row:2;font-size:12.5px;line-height:1.75;margin:0;align-self:center}
  /* 关键词：整行铺开，一行多个 */
  .foot-tags-bar{padding:9px 0 2px}
  .foot-tags-bar .wrap{gap:6px;padding:0 16px}
  .ftb-label{width:100%;padding-top:0;font-size:13px;color:#c7ccd3}
  .foot-tags{gap:5px}
  .foot-tags a{padding:4px 10px;font-size:12px}
  .foot-links{padding:8px 0}
  .foot-bottom{padding:11px 0 84px}
  .foot-bottom .wrap{flex-direction:column;gap:6px;text-align:center;padding:0 16px;font-size:12px}
  .form-row{grid-template-columns:1fr}
  .page-section{padding:34px 0 56px}
  .content{font-size:15px;padding:0 16px}
  .content img,.article-inline img{max-width:100%}
  .article-cover{height:220px}
  .contact-info,.contact-form{padding:24px}
  .news-img{height:190px}
  .product-main-img{height:280px}
  .pd-page .product-main-img{height:260px}
  .pd-thumb{width:70px;height:54px}
  .pd-page .product-info h2{font-size:25px}
  .pd-page .product-info .lead{font-size:15px;margin-bottom:22px;padding-bottom:22px}
  .pd-facts li{flex-direction:column;gap:4px;padding:11px 0}
  .pd-facts li b{flex:none}
  .pd-contact{grid-template-columns:1fr;gap:12px;padding:16px 18px}
  .pd-contact a,.pd-contact span{font-size:17px}
  .pd-trust{grid-template-columns:repeat(2,1fr);margin:36px 0 40px}
  .pd-trust-item{padding:20px 12px}
  .pd-trust-item b{font-size:24px}
  .pd-block{margin-bottom:44px}
  .pd-block.content{margin-bottom:44px}
  .pd-block-h{gap:10px;margin-bottom:18px;padding-bottom:14px}
  .pbh-t{gap:3px}
  .pd-block-h h3{font-size:19px}
  .pd-block-h .sec-en{font-size:10.5px;letter-spacing:2px}
  .pd-block-h .more{margin-left:0;padding:7px 14px;font-size:13px}
  .pd-gallery{grid-template-columns:repeat(2,1fr);gap:12px}
  .pd-shot{height:132px}
  /* 发展历程：手机端改为「竖向时间轴」，全部展开、不再被遮挡 */
  .sec-history{padding:36px 0 28px}
  .sec-history .sec-head{margin-bottom:18px}
  .tl-ctrl{display:none}
  .tl-scroll{overflow:visible;padding:0}
  .tl-track{display:block;width:auto;min-width:0;height:auto;padding:4px 16px 0;position:relative}
  .tl-axis{left:42px;right:auto;top:12px;bottom:12px;width:2px;height:auto;transform:none;
    background:linear-gradient(180deg,transparent,rgba(191,26,32,.18) 4%,var(--line-2) 10%,var(--line-2) 90%,rgba(191,26,32,.18) 96%,transparent)}
  .tl-item{display:block;width:auto;height:auto;padding:0 0 16px 44px;position:relative}
  .tl-item:last-child{padding-bottom:0}
  .tl-dot{left:18px;top:16px;transform:none}
  .tl-item:hover .tl-dot{transform:scale(1.12)}
  .tl-stem{display:none}
  .tl-card,.side-top .tl-card,.side-bottom .tl-card{position:static;left:auto;right:auto;top:auto;bottom:auto;transform:none;padding:14px 16px 16px;border-radius:12px}
  .tl-item:hover .tl-card{transform:none;box-shadow:var(--shadow)}
  .tl-year{font-size:22px;margin-bottom:6px}
  .tl-card h3{font-size:15px}
  .tl-card p{font-size:12.5px;line-height:1.7}
  .tl-hint{display:none}
  .float-nav{height:60px}
  .float-nav .ic{width:22px;height:22px}
  .float-nav a,.float-nav button{font-size:12.5px}
  .post-nav{grid-template-columns:1fr;gap:12px}
}

/* ===== 全局 Toast 提示层 ===== */
.zx-toast{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) scale(.94);z-index:99999;max-width:86vw;min-width:220px;padding:16px 22px;border-radius:14px;color:#fff;font-size:15px;font-weight:600;line-height:1.5;display:flex;align-items:center;gap:12px;box-shadow:0 18px 50px rgba(20,30,48,.32);opacity:0;pointer-events:none;transition:opacity .26s ease,transform .26s ease}
.zx-toast.show{opacity:1;transform:translate(-50%,-50%) scale(1)}
.zx-toast .ic{flex:0 0 26px;width:26px;height:26px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;background:rgba(255,255,255,.22)}
.zx-toast.ok{background:linear-gradient(135deg,#1a7f37,#27b15e)}
.zx-toast.err{background:linear-gradient(135deg,#c8161d,#e23b41)}
.zx-toast .tx{white-space:normal}
@media(max-width:600px){.zx-toast{font-size:14px;padding:13px 16px;gap:10px}}