/* ============================================================
   量剑数智 · 设计系统 v2.1
   基调：全浅色通透画布（回归品牌蓝）
   配色：品牌蓝三阶 #0071e3 / #0066cc / #2997ff（取自品牌色卡）
         + logo 青绿 #00a887（唯一辅助点缀，呼应 logo 弧线）
   ============================================================ */
:root{
  /* 主色 —— 品牌蓝（浅色 banner / 按钮 / 高亮） */
  --blue:#0071e3; --blue-d:#0066cc; --blue-l:#eaf3ff; --blue-ll:#f5f9ff; --signal:#2997ff;
  /* 辅助 —— logo 青绿（克制使用） */
  --green:#00a887; --green-l:#e3f5f0;
  /* 中性 */
  --ink:#0b1220; --muted:#5b6472; --muted-l:#94a3b8;
  --bg:#f6f8fb; --card:#fff; --line:#e6eaf0; --line-d:#d3dae6;
  --radius:20px; --radius-sm:14px;
  /* 阴影（克制，靠色面与描边建立层级） */
  --shadow-sm:0 1px 3px rgba(11,18,32,.05);
  --shadow:0 8px 28px rgba(11,18,32,.07);
  --shadow-lg:0 20px 56px rgba(11,18,32,.13);
  /* 渐变（全浅色系） */
  --grad-brand:linear-gradient(135deg,#0071e3 0%,#2997ff 100%);
  --grad-cyan:linear-gradient(135deg,#e8f4ff 0%,#ddf3ec 100%);
  --grad-hero:linear-gradient(135deg,#f0f7ff 0%,#e3eeff 52%,#e0f5ef 100%);
  --grad-dark:linear-gradient(135deg,#0f172a 0%,#334155 100%);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
img{max-width:100%}

/* ---------------- 顶部导航（玻璃药丸） ---------------- */
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.5px;color:var(--ink)}
.logo img{height:38px;width:auto;display:block;border-radius:10px}
.logo .logo-txt{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;gap:4px;background:rgba(255,255,255,.7);border:1px solid var(--line);border-radius:999px;padding:6px}
.nav-links a{padding:9px 18px;border-radius:999px;font-size:15px;font-weight:500;color:var(--muted);transition:.22s;white-space:nowrap}
.nav-links a:hover{color:var(--blue);background:var(--blue-l)}
.nav-links a.active{background:var(--blue);color:#fff;box-shadow:0 6px 16px rgba(0,113,227,.3)}
/* 下拉子栏目（支持无限层级） */
.nav-links .has-sub{position:relative;display:inline-flex}
.nav-links .has-sub::after{content:"";position:absolute;left:0;right:0;top:100%;height:12px}
.nav-links .caret{font-style:normal;font-size:11px;opacity:.65;margin-left:2px;transition:transform .2s}
.nav-links .has-sub:hover .caret{transform:rotate(90deg)}
.nav-links .sub{position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%);min-width:196px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-lg);padding:8px;display:none;flex-direction:column;z-index:80}
.nav-links .has-sub:hover .sub{display:flex}
.nav-links .sub a{padding:10px 14px;border-radius:12px;font-size:14px;white-space:nowrap}
.nav-links .sub a:hover{background:var(--blue-l);color:var(--blue)}
.nav-links .sub a.active{background:var(--blue);color:#fff;box-shadow:none}
.nav-links .sub .has-sub{display:block}
.nav-links .sub .sub{top:-10px;left:calc(100% + 12px);transform:none;min-width:180px}
/* 父栏目页子栏目入口 */
.sub-cols{display:flex;gap:10px;flex-wrap:wrap}
.sub-cols a{padding:10px 22px;border:1px solid var(--line);border-radius:999px;background:#fff;font-weight:500;color:var(--muted);transition:.2s;box-shadow:var(--shadow-sm)}
.sub-cols a:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-l);transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,113,227,.12)}
.menu-btn{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--ink)}

/* ---------------- 区块通用 ---------------- */
.sec{padding:84px 0}
h1{font-size:40px;font-weight:800;margin-bottom:12px;letter-spacing:-1.2px;line-height:1.15}
h2{font-size:32px;font-weight:800;margin-bottom:14px;letter-spacing:-.8px;line-height:1.2}
.lead{color:var(--muted);font-size:18px;margin-bottom:30px;line-height:1.75}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--blue);background:var(--blue-l);padding:6px 14px;border-radius:999px;margin-bottom:16px}
.muted{color:var(--muted)}

/* ---------------- 关于我们：首屏文字块 ---------------- */
/* 标题区与下方「公司简介」之间收窄留白，避免两个 .sec 各 84px 造成的大空档 */
.about-head{padding:84px 0 34px}
.about-head + .sec{padding-top:36px}
.about-head h1{margin-bottom:10px}
.about-head .lead{margin-bottom:18px}
/* 首段文字（后台「关于我们 · 首段文字」富文本字段）：支持分段 / 字号 / 加粗 / 图片 */
.about-lead{max-width:860px;color:#334155;font-size:17px;line-height:1.85}
.about-lead p{margin:0 0 12px}
.about-lead p:last-child{margin-bottom:0}
.about-lead h2{font-size:24px;margin:16px 0 8px;letter-spacing:-.4px}
.about-lead h3{font-size:20px;margin:14px 0 8px}
.about-lead h2:first-child,.about-lead h3:first-child{margin-top:0}
.about-lead img{max-width:100%;height:auto;border-radius:12px;margin:12px 0;display:block}
.about-lead ul,.about-lead ol{margin:0 0 12px 22px}
.about-lead li{margin:4px 0}
.about-lead blockquote{border-left:3px solid var(--blue);padding-left:14px;color:var(--muted);margin:12px 0}
.about-lead strong{color:var(--ink)}

/* ---------------- 首页 Banner 轮播（纯色渐变 + 白字，回归 test 站版式） ---------------- */
.banner-slider{position:relative;width:100%;height:500px;overflow:hidden;background:#0a84ff;border-radius:0 0 28px 28px}
.banner-slides{position:relative;width:100%;height:100%}
.banner-slide{position:absolute;inset:0;opacity:0;transition:opacity .7s ease;z-index:1;display:flex;align-items:center;justify-content:center}
.banner-slide.active{opacity:1;z-index:2}
.banner-bg{position:absolute;inset:0;z-index:1}
.banner-bg.gradient-1{background:linear-gradient(135deg,#0a84ff 0%,#7c3aed 100%)}
.banner-bg.gradient-2{background:linear-gradient(135deg,#00c6ff 0%,#0072ff 100%)}
.banner-bg.gradient-3{background:linear-gradient(135deg,#89f7fe 0%,#66a6ff 100%)}
.banner-slide img{width:100%;height:100%;object-fit:cover;display:block}
.banner-caption{position:relative;z-index:2;text-align:center;color:#fff;max-width:820px;padding:0 24px}
.banner-caption h2{font-size:46px;margin-bottom:16px;color:#fff;font-weight:800;letter-spacing:-1px;text-shadow:0 4px 24px rgba(0,0,0,.28)}
.banner-caption p{font-size:19px;margin-bottom:28px;color:rgba(255,255,255,.86);line-height:1.7}
.banner-caption .btn{background:#fff;color:var(--blue);font-weight:700;padding:13px 30px;border-radius:999px;box-shadow:0 10px 26px rgba(0,0,0,.22)}
.banner-caption .btn:hover{background:#f0f7ff;transform:translateY(-2px)}
.banner-dots{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:10}
.banner-dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;transition:.2s}
.banner-dot.active{background:#fff;width:30px;border-radius:999px}
.banner-prev,.banner-next{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.85);border:none;color:var(--blue-d);font-size:28px;width:50px;height:50px;border-radius:50%;cursor:pointer;z-index:10;display:flex;align-items:center;justify-content:center;transition:.2s;box-shadow:0 8px 24px rgba(0,0,0,.18)}
.banner-prev:hover,.banner-next:hover{background:#fff}
.banner-prev{left:22px}.banner-next{right:22px}
@media(max-width:860px){.banner-slider{height:400px;border-radius:0}.banner-caption{padding:22px 24px;border-radius:22px}.banner-caption h2{font-size:27px}.banner-caption p{font-size:15px}.banner-prev,.banner-next{display:none}}

/* ---------------- Hero 价值主张（浅色品牌区） ---------------- */
.hero{background:var(--grad-hero);color:var(--ink);text-align:center;padding:96px 0 84px;position:relative;overflow:hidden;border-radius:0 0 28px 28px}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(800px 360px at 80% 12%,rgba(41,151,255,.16),transparent 60%),radial-gradient(680px 340px at 10% 88%,rgba(0,168,135,.12),transparent 60%);pointer-events:none}
.hero .wrap{position:relative;z-index:1}
.hero h1{font-size:64px;letter-spacing:-2px;line-height:1.08;margin-bottom:20px;font-weight:800;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{font-size:20px;color:var(--muted);margin:0 auto 34px;max-width:680px}
.cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-sec{background:#fff;border-radius:28px;margin:32px 0;padding:56px 36px;box-shadow:var(--shadow)}

/* ---------------- 按钮（药丸） ---------------- */
.btn{display:inline-block;background:var(--blue);color:#fff;padding:12px 26px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;border:none;transition:.22s;box-shadow:0 6px 18px rgba(0,113,227,.26)}
.btn:hover{background:var(--blue-d);transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,113,227,.34)}
.btn.big{padding:15px 36px;font-size:17px}
.btn.accent{background:var(--green);box-shadow:0 6px 18px rgba(0,168,135,.3)}
.btn.accent:hover{background:#008f73;box-shadow:0 10px 26px rgba(0,168,135,.38)}
.btn.ghost{background:#fff;color:var(--blue);border:1.5px solid var(--blue);box-shadow:none}
.btn.ghost:hover{background:var(--blue-l)}
.more{color:var(--blue);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.more:hover{gap:8px}

/* ---------------- 卡片网格 ---------------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s;position:relative;box-shadow:var(--shadow-sm)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--line-d)}
.card .ico{font-size:34px;margin-bottom:14px;width:60px;height:60px;display:flex;align-items:center;justify-content:center;background:var(--blue-l);border-radius:16px;color:var(--blue)}
.card h3{font-size:19px;margin-bottom:8px;font-weight:700}
.card p{color:var(--muted);font-size:14px;line-height:1.65}
.card .hl{color:var(--blue);font-weight:600}
.card .price{color:var(--blue);font-weight:800;font-size:19px}
.card .row{display:flex;align-items:center;justify-content:space-between;margin-top:16px}
.badge{position:absolute;top:18px;right:18px;background:var(--blue-l);color:var(--blue);font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px}

/* 页面通用 Hero */
.page-hero{background:linear-gradient(180deg,#fff 0%,#eef3ff 100%);padding:80px 0 52px;text-align:center}
.page-hero h1{font-size:44px;margin-bottom:12px;letter-spacing:-1.5px}
.page-hero .lead{font-size:18px;max-width:680px;margin:0 auto;color:var(--muted)}

/* 区块头 */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:38px;gap:20px;flex-wrap:wrap}
.sec-head h2{margin:0;letter-spacing:-.8px}
.sec-head .lead{margin:0;font-size:16px}

/* 产品中心 */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.product-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s;display:flex;flex-direction:column;box-shadow:var(--shadow-sm)}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--line-d)}
.p-thumb{height:188px;background:var(--grad-brand);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.p-thumb::before{content:"";position:absolute;inset:0;background:radial-gradient(380px 180px at 80% 10%,rgba(41,151,255,.22),transparent 55%),linear-gradient(180deg,transparent 0%,rgba(11,18,32,.24) 100%)}
.p-thumb img{width:100%;height:100%;object-fit:cover;position:relative;z-index:1}
.p-thumb.emoji{font-size:58px;position:relative;z-index:1}
.p-thumb.emoji span{filter:drop-shadow(0 6px 16px rgba(0,0,0,.25))}
.p-body{padding:26px;flex:1;display:flex;flex-direction:column}
.p-body h3{font-size:19px;margin-bottom:6px;font-weight:700}
.p-body .subtitle{color:var(--blue);font-size:13px;font-weight:700;margin-bottom:10px;letter-spacing:.3px}
.p-body .desc{color:var(--muted);font-size:14px;line-height:1.65;margin-bottom:16px;flex:1}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.tag-pill{font-size:12px;background:var(--blue-l);color:var(--blue);padding:5px 12px;border-radius:999px;font-weight:600}
.p-body .link{color:var(--blue);font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:4px}
.product-card:hover .link{gap:8px}

/* 产品详情页 */
.product-detail{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:start}
.pd-cover{border-radius:var(--radius);overflow:hidden;background:var(--grad-brand);min-height:380px;display:flex;align-items:center;justify-content:center;position:relative}
.pd-cover::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 0%,rgba(11,18,32,.28) 100%)}
.pd-cover img{width:100%;height:100%;min-height:380px;object-fit:cover;display:block;position:relative;z-index:1}
.pd-cover.emoji{font-size:104px;position:relative;z-index:1}
.pd-info h1{font-size:34px;margin-bottom:8px;letter-spacing:-1px}
.pd-info .subtitle{font-size:18px;color:var(--blue);font-weight:700;margin-bottom:18px}
.pd-info .article{margin:24px 0}
.pd-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}

/* CTA 区块（回归 test 站蓝紫渐变 + 白字） */
.cta-sec{background:linear-gradient(135deg,#0a84ff 0%,#7c3aed 100%);color:#fff;text-align:center;border-radius:28px;margin:28px 0;padding:64px 32px;position:relative;overflow:hidden}
.cta-sec h2{color:#fff;font-size:34px;margin-bottom:12px;position:relative;z-index:1;letter-spacing:-1px}
.cta-sec .lead{color:rgba(255,255,255,.86);margin-bottom:26px;position:relative;z-index:1}
.cta-sec .btn{background:#fff;color:var(--blue);font-weight:700;position:relative;z-index:1}
.cta-sec .btn:hover{background:#f0f7ff}
.cta-sec .btn.ghost{color:#fff;border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.12);position:relative;z-index:1}
.cta-sec .btn.ghost:hover{background:rgba(255,255,255,.24)}

/* 自定义栏目首页区块 */
.custom-sec{background:#fff;border-radius:28px;padding:56px 36px;margin:32px 0;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.custom-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.custom-card{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.25s;box-shadow:var(--shadow-sm)}
.custom-card:hover{box-shadow:var(--shadow);border-color:var(--line-d);transform:translateY(-3px)}
.custom-thumb{height:148px;background:var(--grad-cyan);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.custom-thumb img{width:100%;height:100%;object-fit:cover}
.custom-video{height:148px;background:#000}
.custom-video video{width:100%;height:100%;object-fit:cover}
.custom-body{padding:20px}
.custom-body h3,.custom-body h4{font-size:17px;margin-bottom:8px;font-weight:700}
.custom-body h3 a:hover,.custom-body h4 a:hover{color:var(--blue)}
.custom-body p{color:var(--muted);font-size:13px;line-height:1.6}

/* 解决方案 / 案例分享 卡片 */
.solution-grid,.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.solution-card,.case-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;box-shadow:var(--shadow-sm)}
.solution-card:hover,.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--line-d)}
.sc-thumb,.case-thumb{height:188px;background:var(--grad-cyan);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.sc-thumb::before,.case-thumb::before{content:"";position:absolute;inset:0;background:radial-gradient(360px 180px at 82% 12%,rgba(41,151,255,.14),transparent 55%),linear-gradient(180deg,transparent 0%,rgba(11,18,32,.05) 100%)}
.sc-thumb img,.case-thumb img{width:100%;height:100%;object-fit:cover;position:relative;z-index:1}
.sc-thumb.emoji,.case-thumb.emoji{font-size:58px;position:relative;z-index:1}
.sc-thumb.emoji span,.case-thumb.emoji span{filter:drop-shadow(0 6px 16px rgba(0,0,0,.25))}
.sc-body,.case-body{padding:26px}
.sc-body h3,.case-body h3{font-size:19px;margin-bottom:10px;font-weight:700}
.sc-body p,.case-body p{color:var(--muted);font-size:14px;line-height:1.7}
.case-body .hl{color:var(--blue);font-weight:700;margin-bottom:12px;font-size:15px}

/* 通用媒体视频 */
.media-video,.page-video,.pd-video,.sc-video,.case-video{width:100%;border-radius:var(--radius-sm);overflow:hidden;margin:18px 0;background:#000}
.media-video video,.page-video video,.pd-video video,.sc-video video,.case-video video{width:100%;max-height:380px;display:block}

/* 新闻 */
.news-list{display:flex;flex-direction:column;gap:14px}
.news-row{display:flex;align-items:center;gap:16px;padding:20px 22px;border:1px solid var(--line);border-radius:16px;background:#fff;transition:.2s;box-shadow:var(--shadow-sm)}
.news-row:hover{border-color:var(--blue);background:var(--blue-ll);transform:translateX(5px)}
.news-row.has-thumb{align-items:flex-start}
.news-row b{font-size:17px;display:block;margin-bottom:6px;font-weight:700}
.news-thumb{width:128px;height:88px;border-radius:12px;overflow:hidden;flex-shrink:0;background:#eef1f5}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-meta{flex:1;min-width:0}
.news-meta p{color:var(--muted);font-size:14px;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tag{background:var(--blue-l);color:var(--blue);font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;white-space:nowrap}
.date{color:var(--muted-l);font-size:13px;white-space:nowrap}
.news-cover{width:100%;max-height:380px;border-radius:18px;overflow:hidden;margin:18px 0;background:#eef1f5}
.news-cover img{width:100%;height:100%;max-height:380px;object-fit:cover}
.news-video{width:100%;border-radius:18px;overflow:hidden;margin:18px 0;background:#000}
.news-video video{width:100%;max-height:440px;display:block}
.tabs{display:flex;gap:10px;margin-bottom:26px;flex-wrap:wrap}
.tab{padding:9px 20px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px;font-weight:500;color:var(--muted);transition:.2s;cursor:pointer}
.tab:hover{border-color:var(--blue);color:var(--blue)}
.tab.on{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:0 6px 16px rgba(0,113,227,.26)}
.article p{margin:14px 0;color:#334155;font-size:16px;line-height:1.85}
.article img{max-width:100%;height:auto;border-radius:12px;margin:14px 0;display:block}
.article h2{font-size:22px;margin:30px 0 12px}
.article h3{font-size:18px;margin:24px 0 8px;color:var(--ink)}
.article ul,.article ol{margin:14px 0 14px 22px;color:#334155;font-size:16px;line-height:1.85}
.article li{margin:6px 0}
.article blockquote{border-left:3px solid var(--blue);padding-left:14px;color:var(--muted);margin:14px 0}
.article blockquote p{margin:8px 0}
/* 正文内表格：GEO / SEO 对比等结构化内容 */
.article table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 10px rgba(15,23,42,.06)}
.article th,.article td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);color:#334155;line-height:1.65}
.article th{background:#f5f8fc;color:var(--ink);font-weight:600;white-space:nowrap}
.article tbody tr:last-child td{border-bottom:none}
.article tbody tr:hover td{background:#fafcff}
/* 正文内超链接：蓝色 + 下划线，悬停加深 */
.article a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.article a:hover{color:var(--blue-d)}
.article strong{color:var(--ink)}
.back{margin-bottom:18px}
.back a{color:var(--blue);font-weight:500}

/* 线索表单（报名 / 预约 / 留言） */
.form{display:flex;flex-direction:column;gap:12px;max-width:400px;margin-top:14px}
.form input,.form textarea{padding:13px 16px;border:1px solid var(--line);border-radius:14px;font-size:14px;transition:.2s;font-family:inherit;background:#fff;color:var(--ink);width:100%}
.form textarea{resize:vertical;min-height:86px;line-height:1.6}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-l)}
.form input::placeholder,.form textarea::placeholder{color:var(--muted-l)}
.form .btn{width:100%;text-align:center;margin-top:2px}
.form .btn:disabled{opacity:.72;cursor:default;transform:none;box-shadow:none}
.form-tip{font-size:12.5px;color:var(--muted-l);text-align:center;margin-top:2px}
.form-done{padding:22px 8px;text-align:center}
.form-done .ok{width:50px;height:50px;border-radius:50%;background:var(--green);color:#fff;font-size:25px;display:flex;align-items:center;justify-content:center;margin:0 auto 12px;box-shadow:0 8px 20px rgba(0,168,135,.3)}
.form-done b{display:block;font-size:17px;margin-bottom:6px}
.form-done p{color:var(--muted);font-size:13.5px}
.lead-tip{position:fixed;left:50%;bottom:38px;transform:translate(-50%,14px);background:rgba(11,18,32,.92);color:#fff;padding:12px 22px;border-radius:999px;font-size:14px;opacity:0;pointer-events:none;transition:.28s;z-index:9999;box-shadow:0 12px 30px rgba(11,18,32,.28);max-width:90vw;text-align:center}
.lead-tip.on{opacity:1;transform:translate(-50%,0)}
.enroll{background:var(--blue-ll);border:1px solid #d4e2ff;border-radius:18px;padding:26px 30px;max-width:660px;margin:0 auto}
.enroll h3{font-size:19px;margin-bottom:10px}
.enroll p{color:var(--muted)}
.enroll .enroll-note{margin:4px 0 8px;font-size:14px}
.enroll b{color:var(--blue)}
.enroll .form{max-width:100%}
.enroll-sec{padding-top:0}
.footer .muted{line-height:1.9}

/* 页脚（深色收尾） */
.footer{background:var(--grad-dark);border-top:none;padding:56px 0 36px;margin-top:72px;text-align:center;color:#cbd5e1}
.footer p{font-size:14px;margin:7px 0}
.footer .muted{color:#94a3b8}
.footer a{color:#cbd5e1}
/* 页脚备案号链接（工信部备案系统） */
.footer .icp-link{color:#cbd5e1;text-decoration:none;transition:color .18s ease}
.footer .icp-link:hover,.footer .icp-link:focus{color:#fff;text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--blue)}

/* ============================================================
   响应式：七断点体系
   1280↑ | 1024 | 860 | 640 | 400 | hover:none | print
   ============================================================ */
@media(min-width:1280px){ .wrap{max-width:1240px} }

@media(max-width:1024px){
  .wrap{padding:0 20px}
  .grid-3,.product-grid,.solution-grid,.case-grid,.custom-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .nav-links a{padding:8px 13px;font-size:14px}
  .banner-slider{height:440px}
  .banner-caption h2{font-size:36px}
  h1{font-size:34px} h2{font-size:28px}
  .sec{padding:68px 0}
  .about-head{padding:68px 0 28px}
  .about-head + .sec{padding-top:30px}
  .hero{padding:84px 0 72px}
  .hero h1{font-size:52px}
}

@media(max-width:860px){
  .menu-btn{display:block;font-size:24px;padding:6px 10px;border-radius:10px}
  .menu-btn:hover{background:var(--blue-l)}
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;gap:4px;padding:14px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);max-height:calc(100vh - 72px);overflow-y:auto;border-radius:0}
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 16px;font-size:15px}
  /* 移动端：子栏目菜单改为常驻内联展开（跟随汉堡菜单） */
  .nav-links .has-sub{display:block}
  .nav-links .has-sub::after{display:none}
  .nav-links .sub{position:static;display:flex;transform:none;box-shadow:none;border:none;padding:0 0 2px 14px;min-width:0;background:transparent;border-radius:0}
  .nav-links .sub a{padding:11px 12px 11px 26px;font-size:14px}
  .nav-links .sub .sub{position:static;padding-left:14px}
  .grid-3,.product-grid,.solution-grid,.case-grid,.custom-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .product-detail{grid-template-columns:1fr;gap:26px}
  .pd-cover{min-height:280px}
  .pd-cover img{min-height:280px}
  .pd-info h1{font-size:28px}
  .page-hero{padding:56px 0 40px}
  .page-hero h1{font-size:32px}
  .hero{padding:64px 0 52px}
  .hero h1{font-size:38px}
  .hero .lead{font-size:17px}
  h1{font-size:28px} h2{font-size:25px}
  .lead{font-size:16px}
  .sec{padding:52px 0}
  .about-head{padding:52px 0 24px}
  .about-head + .sec{padding-top:26px}
  .cta-sec{padding:52px 24px;border-radius:24px}
  .cta-sec h2{font-size:27px}
  .banner-slider{height:380px;border-radius:0}
  .banner-caption h2{font-size:28px}
  .banner-caption p{font-size:15px}
  .banner-prev,.banner-next{display:none}
  .hero-sec,.custom-sec{padding:36px 22px;border-radius:22px}
  .footer{padding:40px 0 28px;margin-top:48px}
}

@media(max-width:640px){
  .wrap{padding:0 16px}
  .grid-3,.product-grid,.solution-grid,.case-grid,.custom-grid{grid-template-columns:1fr;gap:16px}
  .card,.p-body,.sc-body,.case-body{padding:22px}
  h1{font-size:25px} h2{font-size:22px}
  .lead{font-size:15px;margin-bottom:22px}
  .hero h1{font-size:30px;letter-spacing:-1px}
  .hero{padding:52px 0 44px}
  .hero .lead{font-size:16px}
  .sec{padding:44px 0}
  .about-head{padding:44px 0 20px}
  .about-head + .sec{padding-top:22px}
  .about-lead{font-size:15.5px}
  .page-hero{padding:44px 0 30px}
  .page-hero h1{font-size:27px}
  .banner-slider{height:320px}
  .banner-caption h2{font-size:24px}
  .banner-caption p{font-size:14px;margin-bottom:20px}
  .banner-caption .btn{padding:11px 24px;font-size:14px}
  .banner-dots{bottom:14px}
  .cta-sec{padding:42px 18px}
  .cta-sec h2{font-size:23px}
  .btn.big{padding:13px 26px;font-size:15px}
  .cta{flex-direction:column;align-items:stretch;gap:10px}
  .cta .btn{width:100%;text-align:center}
  .news-row{flex-direction:column;align-items:flex-start;gap:10px;padding:16px}
  .news-thumb{width:100%;height:160px}
  .news-meta p{white-space:normal}
  .tag-row{gap:5px}
  .form{max-width:100%}
  .form input{width:100%}
  .enroll{padding:18px}
  .tabs{gap:8px}
  .tab{padding:7px 14px;font-size:13px}
  .article p{font-size:15px}
  .pd-info h1{font-size:23px}
  .pd-actions{flex-direction:column}
  .pd-actions .btn{width:100%;text-align:center}
  .custom-sec,.hero-sec{padding:28px 16px}
  .footer{padding:34px 0 22px}
  .footer p{font-size:13px}
}

@media(max-width:400px){
  .wrap{padding:0 12px}
  h1{font-size:22px} h2{font-size:20px}
  .hero h1{font-size:26px}
  .banner-slider{height:280px}
  .banner-caption h2{font-size:21px}
  .card,.p-body,.sc-body,.case-body{padding:18px}
  .nav-links a{padding:11px 12px;font-size:14px}
  .sc-thumb,.case-thumb,.p-thumb{height:150px}
  .p-thumb.emoji,.sc-thumb.emoji,.case-thumb.emoji{font-size:44px}
  .stat-num{font-size:38px}
}

/* 触摸设备：去掉 hover 位移 */
@media(hover:none){
  .card:hover,.product-card:hover,.solution-card:hover,.case-card:hover,.custom-card:hover,.btn:hover{transform:none}
  .news-row:hover{transform:none}
}

/* ---------------- 联系我们：自由编辑的联系方式条目 ---------------- */
.contact-head{padding:84px 0 34px}
.contact-head h1{margin-bottom:10px}
.contact-head + .sec{padding-top:36px}
.contact-head .about-lead{margin:4px 0 0}
.ct-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px;margin-top:26px}
.ct-item{display:flex;gap:14px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);padding:20px;box-shadow:var(--shadow-sm);transition:.22s}
.ct-item:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.ct-ico{flex:0 0 44px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;font-size:21px;line-height:1;background:var(--blue-l);border-radius:12px}
.ct-body{min-width:0;flex:1}
.ct-label{display:block;font-size:13px;font-weight:700;color:var(--blue);letter-spacing:.4px;margin-bottom:6px}
.ct-value{margin:0;color:#334155;font-size:15.5px;line-height:1.75;word-break:break-word}
.contact-head .about-lead img{border-radius:12px}
@media (max-width:1024px){
  .contact-head{padding:68px 0 28px}
  .contact-head + .sec{padding-top:30px}
}
@media (max-width:860px){
  .contact-head{padding:52px 0 24px}
  .contact-head + .sec{padding-top:26px}
  .ct-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}
}
@media (max-width:640px){
  .contact-head{padding:44px 0 20px}
  .contact-head + .sec{padding-top:22px}
  .ct-grid{grid-template-columns:1fr;gap:12px}
  .ct-item{padding:16px;gap:12px}
  .ct-value{font-size:15px}
  /* 正文表格在窄屏可横向滑动，避免撑破版面 */
  .article table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;font-size:13.5px}
  .article th,.article td{padding:9px 11px}
  .article h2{font-size:19px}
  .article h3{font-size:16.5px}
}

/* 打印优化 */
@media print{
  .topbar,.footer,.banner-slider,.cta-sec,.banner-dots{display:none}
  .sec{padding:16px 0}
}

/* ============================================================
   SEO / GEO 增强组件（v20 新增，仅追加，不改动既有样式）
   面包屑 / 常见问题 FAQ / 相关内链 / 无障碍隐藏文本
   ============================================================ */
/* 仅对搜索引擎与读屏软件可见（补齐首页 h1 等语义，不影响视觉） */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* 面包屑导航 */
.crumb{padding:16px 0 0;font-size:13px;color:var(--muted)}
.crumb ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin:0;padding:0}
.crumb li{display:flex;align-items:center;gap:6px}
.crumb li+li::before{content:"›";color:var(--muted-l);font-size:13px;line-height:1}
.crumb a{color:var(--muted);transition:color .18s ease}
.crumb a:hover{color:var(--blue)}
.crumb li.on span{color:var(--ink);font-weight:600}

/* 常见问题（面向 AI 问答引用，结构化、一问一答） */
.faq-sec{padding-top:36px}
.faq-list{display:flex;flex-direction:column;gap:12px;margin-top:18px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px 20px;background:var(--card);box-shadow:var(--shadow-sm);transition:border-color .18s ease,box-shadow .18s ease}
.faq-item:hover{border-color:var(--line-d);box-shadow:var(--shadow)}
.faq-q{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:8px;line-height:1.55}
.faq-q::before{content:"Q";display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:6px;background:var(--blue-l);color:var(--blue-d);font-size:12px;font-weight:700;margin-right:9px;vertical-align:2px}
.faq-a{font-size:14.5px;color:var(--muted);line-height:1.85}
.faq-a::before{content:"A";display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:6px;background:var(--green-l);color:var(--green);font-size:12px;font-weight:700;margin-right:9px;vertical-align:2px}

/* 相关内链推荐 */
.rel-sec{padding-top:8px}
.rel-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-top:16px}
.rel-item{display:flex;flex-direction:column;gap:6px;padding:16px 18px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--card);box-shadow:var(--shadow-sm);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}
.rel-item:hover{transform:translateY(-2px);border-color:var(--blue-l);box-shadow:var(--shadow)}
.rel-item b{font-size:15px;font-weight:700;color:var(--ink);line-height:1.5}
.rel-item span{font-size:13px;color:var(--muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

@media (max-width:640px){
  .crumb{padding:12px 0 0;font-size:12.5px}
  .faq-item{padding:14px 16px}
  .faq-q{font-size:15px}
  .faq-a{font-size:14px}
  .rel-list{grid-template-columns:1fr}
}

/* 列表页「服务范围说明」：低对比度辅助文案，承载业务关键词又不抢视觉焦点（v21 新增） */
.seo-note{max-width:840px;margin:36px auto 0;text-align:center;color:var(--muted);font-size:15px;line-height:1.95}
@media(max-width:640px){.seo-note{margin-top:24px;font-size:14px;text-align:left}}
@media print{.seo-note{display:none}}