/* ==========================================================================
   中山市贝安智能科技有限公司 · 官网前台设计系统
   --------------------------------------------------------------------------
   设计语言：科技蓝渐变（#0B4FE8 → #12A6FF）+ 纯白底 + 深灰文字 + LED 点阵纹理
   结构：设计变量 → 基础 → 组件（按钮/标题/点阵）→ 顶部条/导航 → 页头/面包屑
        → 卡片与网格 → 筛选 → 规格表 → CTA → 详情页 → 表单 → 页脚
        → 浮动客服/二维码 → 动效 → 响应式
   ========================================================================== */

/* ============================== 1. 设计变量 ============================== */
:root{
  /* 主色：科技蓝 */
  --brand-1:#0B4FE8;
  --brand-2:#12A6FF;
  --brand-grad:linear-gradient(135deg,#0B4FE8 0%,#12A6FF 100%);
  --brand-grad-rev:linear-gradient(135deg,#12A6FF 0%,#0B4FE8 100%);
  --brand-soft:#EDF4FF;
  --brand-tint:#F7FAFF;
  --brand-line:#CFE1FF;
  --brand-shadow:0 12px 30px rgba(11,79,232,.26);
  --brand-deep:#0732A0;
  /* 文字 */
  --ink:#141B2D;
  --ink-2:#48546C;
  --ink-3:#8794AB;
  --ink-4:#B7C1D2;
  /* 面 */
  --bg:#fff;
  --soft:#F4F7FC;
  --dark:#081228;
  --dark-2:#0E1D3A;
  --line:#E6EBF4;
  --line-2:#EFF3FA;
  /* 形状 */
  --r-sm:10px;
  --r:16px;
  --r-lg:24px;
  --sh-1:0 6px 18px rgba(24,32,48,.06);
  --sh-2:0 16px 44px rgba(24,32,48,.10);
  --sh-3:0 26px 70px rgba(24,32,48,.16);
  --hdr:74px;
  --container:1220px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ============================== 2. 基础 ============================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:15.5px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;border:0;vertical-align:middle}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-1)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em}
p{margin:0 0 12px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.muted{color:var(--ink-3)}
.mt-40{margin-top:40px}
.mt-24{margin-top:24px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.page-main{padding-bottom:0}

/* ============================== 3. 通用组件 ============================== */
/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;font-weight:600;font-size:15px;
  border:1px solid transparent;transition:all .24s var(--ease);white-space:nowrap;
}
.btn-primary{background-image:var(--brand-grad);color:#fff;box-shadow:0 8px 22px rgba(11,79,232,.24)}
.btn-primary:hover{background-image:var(--brand-grad-rev);color:#fff;transform:translateY(-2px);box-shadow:var(--brand-shadow)}
.btn-white{background:#fff;color:var(--brand-1)}
.btn-white:hover{background:#fff;color:var(--brand-2);transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,0,0,.16)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.14);color:#fff}
.btn-outline{border-color:var(--brand-line);color:var(--brand-1);background:var(--brand-tint)}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand-1);color:var(--brand-1)}
.btn-line{border-color:var(--line);color:var(--ink-2);background:#fff}
.btn-line:hover{border-color:var(--brand-1);color:var(--brand-1)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:15px 30px;font-size:16px}
.btn-block{display:flex;width:100%}
.btn[disabled]{opacity:.6;cursor:not-allowed;transform:none}

/* 小标题 / 段落标题 */
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand-1);margin-bottom:10px;
}
.eyebrow--light{color:#9AD2FF}
.section{padding:76px 0}
.section--soft{background:var(--soft)}
.section--tight{padding:56px 0}
.section-head{max-width:760px;margin:0 auto 40px;text-align:center}
.section-head h2{font-size:34px}
.section-head h2 em{
  font-style:normal;
  background-image:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px}
.section-head--left{margin-left:0;text-align:left}
.section-bar{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap}
.section-bar .section-head{margin:0}
.link-more{color:var(--brand-1);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{gap:10px}

/* 模块右上角“查看全部”入口（产品中心等） */
.section-bar__more{
  display:flex;flex-direction:column;align-items:flex-end;gap:9px;
  margin-left:auto;align-self:flex-start;flex:0 0 auto;
}
.section-bar__more .btn{gap:7px;white-space:nowrap}
.section-bar__more .btn svg{transition:transform .25s var(--ease)}
.section-bar__more .btn:hover svg{transform:translateX(3px)}
.section-bar__count{font-size:13px;color:var(--ink-3);letter-spacing:.02em}
.section-bar__count b{color:var(--brand-1);font-size:15px;font-weight:800;padding:0 2px}

/* LED 点阵纹理（纯 CSS，无外部图片） */
.led-dots{
  position:absolute;inset:0;pointer-events:none;color:var(--brand-1);opacity:.16;
  background-image:radial-gradient(currentColor 1.15px,transparent 1.3px);
  background-size:12px 12px;
  -webkit-mask-image:radial-gradient(closest-side,#000 0%,rgba(0,0,0,.35) 62%,transparent 100%);
  mask-image:radial-gradient(closest-side,#000 0%,rgba(0,0,0,.35) 62%,transparent 100%);
}
.led-dots--light{color:#fff;opacity:.22}
.led-dots--flat{-webkit-mask-image:none;mask-image:none}

/* ============================== 4. 顶部信息条 ============================== */
.topbar{background:var(--dark);color:rgba(255,255,255,.82);font-size:13.5px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:40px}
.topbar__links{display:flex;align-items:center;gap:26px}
.topbar__item{display:inline-flex;align-items:center;gap:7px}
.topbar__item svg{flex:0 0 auto;color:var(--brand-2)}
.topbar__item b{color:#fff;font-weight:600}
.topbar a.topbar__item:hover{color:#fff}

/* ============================== 5. 吸顶导航 ============================== */
.site-header{
  position:sticky;top:0;z-index:90;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);transition:box-shadow .25s var(--ease),background .25s var(--ease);
}
.site-header.is-stuck{box-shadow:0 8px 26px rgba(24,32,48,.08)}
.header__inner{display:flex;align-items:center;gap:26px;min-height:var(--hdr)}
.logo{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto}
.logo__mark{
  width:42px;height:42px;border-radius:12px;background-image:var(--brand-grad);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:17px;letter-spacing:.02em;
  box-shadow:0 8px 18px rgba(11,79,232,.26);
}
.logo__text{display:flex;flex-direction:column;line-height:1.2}
.logo__text b{font-size:17.5px;color:var(--ink);letter-spacing:.01em}
.logo__text i{font-style:normal;font-size:11px;color:var(--ink-3);letter-spacing:.10em;text-transform:uppercase}

.nav{margin-left:auto}
.nav__list{display:flex;align-items:center;gap:4px}
.nav__list>li{position:relative}
.nav__list>li>a{
  display:block;padding:10px 14px;font-size:15.5px;font-weight:600;color:var(--ink-2);border-radius:10px;
  transition:all .2s var(--ease);
}
.nav__list>li>a:hover{color:var(--brand-1);background:var(--brand-tint)}
.nav__list>li>a.is-active{color:var(--brand-1)}
.nav__list>li>a.is-active::after{
  content:"";display:block;height:2.5px;border-radius:2px;background-image:var(--brand-grad);margin-top:5px;
}
/* 二级下拉 */
.nav__sub{
  position:absolute;left:0;top:calc(100% + 8px);min-width:216px;background:#fff;border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--sh-2);padding:8px;opacity:0;visibility:hidden;transform:translateY(6px);
  transition:all .22s var(--ease);
}
.nav__list>li:hover .nav__sub{opacity:1;visibility:visible;transform:translateY(0)}
.nav__sub a{display:block;padding:9px 12px;border-radius:9px;font-size:14.5px;color:var(--ink-2)}
.nav__sub a:hover{background:var(--brand-tint);color:var(--brand-1)}
.header__cta{flex:0 0 auto}
.nav-toggle{display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);background:#fff;padding:11px}
.nav-toggle span{display:block;height:2px;background:var(--ink);border-radius:2px;margin:3px 0;transition:all .24s var(--ease)}

/* ============================== 6. 内页页头 ============================== */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:var(--brand-grad);
  padding:58px 0 52px;
}
.page-hero::after{
  content:"";position:absolute;right:-90px;top:-70px;width:340px;height:340px;border-radius:50%;
  background:rgba(255,255,255,.12);
}
.page-hero__inner{position:relative;z-index:2;max-width:860px}
.page-hero h1{font-size:40px;letter-spacing:-.02em}
.page-hero p{margin-top:14px;font-size:16px;color:rgba(255,255,255,.92);max-width:800px}
.page-hero .eyebrow{color:#A9D8FF}
.page-hero__dots{opacity:.2}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;margin-top:18px;color:rgba(255,255,255,.78)}
.breadcrumb a{color:rgba(255,255,255,.9)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb .sep{opacity:.6}
.breadcrumb .cur{color:#fff}
.breadcrumb--inline{color:var(--ink-3);margin:0 0 22px}
.breadcrumb--inline a{color:var(--ink-2)}
.breadcrumb--inline a:hover{color:var(--brand-1)}
.breadcrumb--inline .cur{color:var(--ink-3)}

/* ============================== 7. 首页首屏 ============================== */
.hero{position:relative;background:var(--dark);overflow:hidden}
.hero-track{position:relative;height:520px}
.hero-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .7s var(--ease)}
.hero-slide.on{opacity:1;visibility:visible}
.hero-slide img{width:100%;height:100%;object-fit:cover}
.hero-slide::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(5,14,34,.82) 0%,rgba(6,18,44,.5) 42%,rgba(11,79,232,.16) 100%);
}
.hero-slide .led-dots{z-index:1;opacity:.22;color:#fff}
.hero-caption{
  position:absolute;left:0;right:0;bottom:0;top:0;z-index:3;display:flex;flex-direction:column;
  justify-content:center;max-width:var(--container);margin:0 auto;padding:0 20px;
}
.hero-caption>*{max-width:640px}
.hero-caption h2{font-size:44px;color:#fff;letter-spacing:-.02em;text-shadow:0 4px 24px rgba(0,0,0,.3)}
.hero-caption p{color:rgba(255,255,255,.9);font-size:17px;margin-top:16px}
.hero-caption .btn{margin-top:26px;align-self:flex-start}
.hero-dots{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:4;display:flex;gap:10px}
.hero-dots button{width:34px;height:4px;border-radius:3px;background:rgba(255,255,255,.42);transition:all .25s var(--ease)}
.hero-dots button.on{background-image:var(--brand-grad);width:48px}

/* ============================== 8. 卡片与网格 ============================== */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.card:hover{transform:translateY(-6px);box-shadow:var(--sh-2);border-color:var(--brand-line)}

/* 媒体区（真实图片 + 渐变叠加 + LED 点阵） */
.media{position:relative;overflow:hidden;background:var(--soft)}
.media img{width:100%;height:100%;object-fit:cover;display:block;position:relative;z-index:1;transition:transform .5s var(--ease)}
.card:hover .media img{transform:scale(1.05)}
.media__veil{position:absolute;inset:0;z-index:2;opacity:.46;mix-blend-mode:multiply;pointer-events:none}
.media .led-dots{z-index:3}
.media__figure{position:absolute;inset:0;z-index:2;display:grid;place-items:center;gap:8px}
.media__figure i{display:block;width:62%;height:8px;border-radius:4px;background:rgba(255,255,255,.52);box-shadow:0 0 18px rgba(255,255,255,.5)}
.media__figure i:nth-child(2){width:44%}
.media__figure i:nth-child(3){width:30%}

/* 渐变调色（按内容轮转分配） */
.g-azure{background-image:linear-gradient(135deg,#0B4FE8,#2E9BFF)}
.g-blue{background-image:linear-gradient(135deg,#1266F1,#4EA8FF)}
.g-cyan{background-image:linear-gradient(135deg,#0072D6,#00C8F0)}
.g-sky{background-image:linear-gradient(135deg,#0E86C8,#58CCF5)}
.g-indigo{background-image:linear-gradient(135deg,#2A3FCE,#6B7BFF)}
.g-aqua{background-image:linear-gradient(135deg,#0784A8,#3ED6E0)}
.g-teal{background-image:linear-gradient(135deg,#0B7A8C,#35C4C6)}
.g-steel{background-image:linear-gradient(135deg,#24406E,#5D7FA8)}
.g-violet{background-image:linear-gradient(135deg,#4B3BC9,#8A78FF)}
.g-slate{background-image:linear-gradient(135deg,#35405A,#7A8AA6)}

/* 产品卡 */
.product-card{position:relative}
.product-card__media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--soft)}
.product-card__media img{width:100%;height:100%;object-fit:cover;position:relative;z-index:1;transition:transform .5s var(--ease)}
.product-card:hover .product-card__media img{transform:scale(1.06)}
.product-card__badge{
  position:absolute;left:12px;top:12px;z-index:4;padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.94);color:var(--brand-1);font-size:12.5px;font-weight:700;backdrop-filter:blur(6px);
}
.product-card__sp{
  position:absolute;right:12px;bottom:12px;z-index:4;padding:5px 11px;border-radius:999px;
  background:rgba(31,36,48,.62);color:#fff;font-size:12px;backdrop-filter:blur(6px);
}
.product-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.product-card__body h3{font-size:17px;margin-bottom:8px}
.product-card__body p{color:var(--ink-2);font-size:14.2px;margin:0;flex:1}
.product-card__foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line-2);
}
.product-card__price{font-size:13px;color:var(--ink-3)}
.product-card__price b{color:var(--brand-1);font-size:15px}
.link-arrow{display:inline-flex;align-items:center;gap:5px;color:var(--brand-1);font-weight:600;font-size:14px}
.card:hover .link-arrow svg{transform:translateX(3px)}
.link-arrow svg{transition:transform .25s var(--ease)}

/* 首页产品中心：固定单行四列，卡片等高、文案截断对齐 */
.product-row>.product-card{height:100%}
.product-row .product-card__body h3{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  min-height:2.62em;line-height:1.31;
}
.product-row .product-card__body p{
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}

/* 案例卡 */
.case-card .product-card__media{aspect-ratio:16/10}
.case-card__meta{display:flex;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--ink-3);margin-bottom:8px}
.case-card__meta span{display:inline-flex;align-items:center;gap:5px}

/* 服务卡（图标 + 标题 + 说明） */
.service-card{padding:26px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--r);transition:all .3s var(--ease)}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--sh-2);border-color:var(--brand-line)}
.service-card__ico{
  width:50px;height:50px;border-radius:14px;background:var(--brand-soft);color:var(--brand-1);
  display:grid;place-items:center;margin-bottom:16px;
}
.service-card:hover .service-card__ico{background-image:var(--brand-grad);color:#fff}
.service-card h3{font-size:17px;margin-bottom:8px}
.service-card p{color:var(--ink-2);font-size:14.2px;margin:0}
.service-card .link-arrow{margin-top:14px}

/* 新闻行 */
.news-row{display:grid;gap:0}
.news-item{
  display:grid;grid-template-columns:112px 1fr auto;gap:22px;align-items:center;
  padding:22px 4px;border-bottom:1px solid var(--line);
}
.news-item:first-child{border-top:1px solid var(--line)}
.news-item time{font-size:13.5px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.news-item h3{font-size:17.5px;margin-bottom:6px}
.news-item p{margin:0;color:var(--ink-2);font-size:14.2px}
.news-item:hover h3 a{color:var(--brand-1)}

/* 优势卡（深色段） */
.section--dark{background:var(--dark);color:#fff;position:relative;overflow:hidden}
.section--dark .section-head h2{color:#fff}
.section--dark .section-head p,.section--dark .eyebrow{color:rgba(255,255,255,.78)}
.tech-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;z-index:2}
.tech-item{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--r);padding:24px 22px;
  transition:all .3s var(--ease);
}
.tech-item:hover{background:rgba(255,255,255,.11);transform:translateY(-4px)}
.tech-item h3{font-size:16.5px;margin-bottom:10px;color:#fff}
.tech-item p{color:rgba(255,255,255,.72);font-size:14.2px;margin:0}
.tech-item .num{
  display:inline-block;font-size:13px;font-weight:800;color:var(--brand-2);letter-spacing:.1em;margin-bottom:12px;
}

/* 数字背书 */
.intro-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.intro-text h2{font-size:32px;margin-bottom:18px}
.intro-text p{color:var(--ink-2)}
.intro-nums{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:28px;padding-top:26px;border-top:1px solid var(--line)}
.intro-nums li{text-align:left}
.intro-nums b{font-variant-numeric:tabular-nums;
  display:block;font-size:32px;font-weight:800;
  background-image:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.intro-nums span{font-size:13.5px;color:var(--ink-3)}
.intro-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2)}
.intro-media img{width:100%;display:block}

/* 服务与支持（左图右列表） */
.service-split{display:grid;grid-template-columns:.92fr 1.08fr;gap:46px;align-items:center}
.service-split__media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2)}
.service-split__media img{width:100%;display:block;aspect-ratio:4/3;object-fit:cover}
.service-list{display:grid;gap:14px;margin-top:22px}
.service-list a{
  display:flex;gap:16px;align-items:flex-start;padding:16px 18px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;transition:all .26s var(--ease);
}
.service-list a:hover{border-color:var(--brand-line);background:var(--brand-tint);transform:translateX(4px)}
.service-list b{font-size:15.5px;display:block;margin-bottom:4px}
.service-list span{color:var(--ink-2);font-size:14px;display:block}

/* ============================== 9. 筛选胶囊 ============================== */
.filter{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.filter button,.filter a{
  padding:9px 18px;border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:14.5px;font-weight:600;color:var(--ink-2);transition:all .22s var(--ease);
}
.filter button:hover,.filter a:hover{border-color:var(--brand-line);color:var(--brand-1)}
.filter button.is-active,.filter .btn-primary{background-image:var(--brand-grad);border-color:transparent;color:#fff;box-shadow:0 8px 20px rgba(11,79,232,.22)}
.filter .btn-sm{padding:8px 16px;font-size:14px}
.filter .btn-line{background:#fff}
.card.is-hidden{display:none}

/* ============================== 10. 表格 / 规格表 ============================== */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff}
table.spec{min-width:720px;font-size:14.5px}
table.spec thead th{
  background:var(--dark);color:#fff;font-weight:600;text-align:left;padding:15px 18px;white-space:nowrap;
}
table.spec tbody td{padding:15px 18px;border-top:1px solid var(--line-2);color:var(--ink-2)}
table.spec tbody tr:nth-child(even){background:var(--tint,none)}
table.spec tbody tr:hover{background:var(--brand-tint)}
table.spec tbody td:first-child{color:var(--ink);font-weight:600}
.param-table,.info-table{border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.param-table th,.param-table td,.info-table th,.info-table td{
  padding:14px 18px;border-top:1px solid var(--line-2);font-size:14.5px;text-align:left;vertical-align:top;
}
.param-table tr:first-child th,.param-table tr:first-child td,
.info-table tr:first-child th,.info-table tr:first-child td{border-top:0}
.param-table th,.info-table th{background:var(--soft);color:var(--ink);font-weight:600;width:180px;white-space:nowrap}
.param-table td,.info-table td{color:var(--ink-2)}

/* ============================== 11. CTA 条 ============================== */
.cta-wrap{padding:0 0 76px}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);background-image:var(--brand-grad);color:#fff;
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;
  box-shadow:var(--brand-shadow);
}
.cta-band h2{font-size:27px;color:#fff;margin-bottom:8px}
.cta-band p{margin:0;color:rgba(255,255,255,.92);max-width:640px}
.cta-band__dots{opacity:.24}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}
.cta-band>*{position:relative;z-index:2}

/* ============================== 12. 列表页 ============================== */
.list-layout{display:grid;grid-template-columns:1fr 320px;gap:42px;padding:56px 0 0}
.list-main{min-width:0}
.list-side{display:grid;gap:20px;align-content:start;position:sticky;top:calc(var(--hdr) + 20px)}
.side-box{border:1px solid var(--line);border-radius:var(--r);padding:22px 22px 18px;background:#fff}
.side-box h3{font-size:16px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line-2);position:relative}
.side-box h3::after{content:"";position:absolute;left:0;bottom:-1px;width:38px;height:2.5px;border-radius:2px;background-image:var(--brand-grad)}
.side-links{display:grid;gap:2px}
.side-links a{display:block;padding:8px 0;font-size:14.5px;color:var(--ink-2);border-bottom:1px dashed var(--line-2)}
.side-links li:last-child a{border-bottom:0}
.side-links a:hover{color:var(--brand-1);padding-left:5px}
.side-links.plain li{font-size:14.2px;color:var(--ink-2);padding:6px 0}
.side-tel a{font-size:22px;font-weight:800;color:var(--brand-1);letter-spacing:-.01em}
.side-note{font-size:13.5px;color:var(--ink-3);margin:6px 0 0}
.empty{
  padding:56px 28px;text-align:center;color:var(--ink-2);border:1px dashed var(--line);border-radius:var(--r);background:var(--soft);
}
.sec-inline-form{padding:56px 0 0}
.pager{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:38px 0 0}
.pager a,.pager .cur,.pager .total{
  padding:8px 14px;border-radius:9px;border:1px solid var(--line);font-size:14px;color:var(--ink-2);background:#fff;
}
.pager a:hover{border-color:var(--brand-1);color:var(--brand-1)}
.pager .cur{background-image:var(--brand-grad);border-color:transparent;color:#fff;font-weight:700}
.pager .total{border:0;background:none;color:var(--ink-3);margin-left:6px}

/* 搜索结果 */
.search-form{display:flex;gap:12px;margin-top:22px;max-width:620px}
.search-form input{
  flex:1;padding:13px 18px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:15px;
}
.search-form input:focus{border-color:var(--brand-1);outline:none;box-shadow:0 0 0 4px rgba(11,79,232,.12)}
.search-results{display:grid;gap:14px}
.search-results li{border:1px solid var(--line);border-radius:var(--r);padding:20px 22px;background:#fff;transition:all .25s var(--ease)}
.search-results li:hover{border-color:var(--brand-line);box-shadow:var(--sh-1)}
.search-results .sr-type{
  display:inline-block;font-size:12px;font-weight:700;color:var(--brand-1);background:var(--brand-soft);
  padding:3px 10px;border-radius:999px;margin-bottom:10px;
}
.search-results a{font-size:17px;font-weight:700}
.search-results p{margin:8px 0 0;color:var(--ink-2);font-size:14.2px}

/* 404 */
.err-404{text-align:center;padding:72px 0 40px}
.err-code{
  font-size:96px;font-weight:800;line-height:1;margin:0 0 12px;letter-spacing:-.04em;
  background-image:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.err-404 h1{font-size:27px;margin-bottom:12px}
.err-404 p{color:var(--ink-2)}
.err-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:26px}
.err-actions .btn-ghost{border-color:var(--line);color:var(--ink-2)}
.err-actions .btn-ghost:hover{border-color:var(--brand-1);color:var(--brand-1);background:var(--brand-tint)}
.related-list{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 24px}
.related-list a{color:var(--ink-2);font-size:14.6px}
.related-list a:hover{color:var(--brand-1)}

/* ============================== 13. 详情页 ============================== */
.detail-layout{display:grid;grid-template-columns:1fr 340px;gap:42px;padding:46px 0 0}
.detail-main{min-width:0}
.detail-side{display:grid;gap:20px;align-content:start;position:sticky;top:calc(var(--hdr) + 20px)}
.detail-title{font-size:32px;margin-bottom:14px;letter-spacing:-.02em}
.detail-meta{color:var(--ink-3);font-size:14px;margin-bottom:22px}
.gallery{margin:0 0 26px}
.gallery-main{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--soft)}
.gallery-main img{width:100%;display:block}
.gallery-thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.gallery-thumbs button{
  width:88px;height:66px;border-radius:10px;overflow:hidden;border:2px solid transparent;padding:0;background:var(--soft);
}
.gallery-thumbs button.on{border-color:var(--brand-1)}
.gallery-thumbs img{width:100%;height:100%;object-fit:cover}
.tldr{
  border-left:4px solid var(--brand-1);background:var(--brand-tint);border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:18px 22px;margin-bottom:26px;color:var(--ink-2);font-size:15px;
}
.detail-block{margin-bottom:34px}
.detail-block>h2{
  font-size:22px;margin-bottom:18px;padding-left:14px;position:relative;
}
.detail-block>h2::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:4px;border-radius:3px;background-image:var(--brand-grad);
}
.article-body{color:var(--ink-2);font-size:15.6px;line-height:1.85}
.article-body h2,.article-body h3{color:var(--ink);margin:26px 0 12px;font-size:19px}
.article-body p{margin:0 0 14px}
.article-body ul,.article-body ol{margin:0 0 16px;padding-left:22px;list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:6px}
.article-body img{border-radius:var(--r-sm);margin:10px 0}
/* 文章内单图与图注 */
.article-body figure{margin:24px 0}
.article-body figure img{width:100%;margin:0}
.article-body figcaption{font-size:13px;color:var(--ink-3);line-height:1.6;margin-top:8px}

/* 文章内一行两图（展厅实景） */
.article-body .fig-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:22px 0}
.article-body .fig-row figure{margin:0}
.article-body .fig-row img{width:100%;aspect-ratio:4/3;object-fit:cover;margin:0;border-radius:var(--r-sm)}
.article-body .fig-row figcaption{font-size:13px;color:var(--ink-3);line-height:1.6;margin-top:8px}
@media (max-width:760px){
  .article-body .fig-row{grid-template-columns:1fr;gap:14px}
  .article-body .fig-row img{aspect-ratio:16/10}
}

.article-body table{margin:16px 0;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden}
.article-body th,.article-body td{border:1px solid var(--line-2);padding:10px 14px;font-size:14.5px}
.article-body th{background:var(--soft)}
.article-body blockquote{
  margin:16px 0;padding:14px 20px;border-left:4px solid var(--brand-line);background:var(--soft);color:var(--ink-2);
}
.article-body a{color:var(--brand-1);text-decoration:underline}
/* FAQ */
.faq-list{display:grid;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;overflow:hidden}
.faq-item[open]{border-color:var(--brand-line);box-shadow:var(--sh-1)}
.faq-item summary{
  cursor:pointer;padding:16px 20px;font-weight:600;font-size:15.5px;list-style:none;position:relative;padding-right:52px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:20px;color:var(--brand-1);font-weight:700;
}
.faq-item[open] summary::after{content:"–"}
.faq-item summary:hover{color:var(--brand-1)}
.faq-a{padding:0 20px 18px;color:var(--ink-2);font-size:14.8px;border-top:1px solid var(--line-2);padding-top:14px;margin-top:0}
/* 场景 / 覆盖范围 */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.scene-item{border:1px solid var(--line);border-radius:var(--r);padding:22px;background:#fff}
.scene-item h3{font-size:16.5px;margin-bottom:8px}
.scene-item p{margin:0;color:var(--ink-2);font-size:14.3px}
.map-box{margin-top:8px;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.map-box iframe{width:100%;height:340px;display:block;border:0}
.map-placeholder{padding:34px;background:var(--soft);text-align:center}
.map-placeholder p{margin-bottom:10px;color:var(--ink-2)}
.map-live{height:420px;background:#e8edf4;border-radius:var(--r) var(--r) 0 0;cursor:grab}
.map-live:active{cursor:grabbing}
.map-live .leaflet-container{height:100%;width:100%;font:inherit}
.map-live .leaflet-popup-content-wrapper{border-radius:10px;box-shadow:0 8px 24px rgba(15,23,42,.18)}
.map-live .leaflet-popup-content{margin:10px 14px;font-size:13.5px;line-height:1.55}
.map-live .leaflet-popup-content strong{font-size:14px;color:var(--ink)}
.map-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:12px 16px;border:1px solid var(--line);border-top:0;border-radius:0 0 var(--r) var(--r);background:#fff}
.map-actions__addr{font-size:13.5px;color:var(--ink-2);display:inline-flex;align-items:center;gap:6px}
.map-actions__btns{display:inline-flex;gap:8px;flex-wrap:wrap}
.form-note{display:flex;gap:10px;align-items:flex-start;color:var(--ink-2);font-size:14.2px}
.form-note svg{flex:0 0 auto;color:var(--brand-1);margin-top:3px}

/* ============================== 14. 表单 ============================== */
.lead-form{width:100%}
.lf-head{margin-bottom:18px}
.lf-title{font-size:19px;margin-bottom:8px}
.lf-sub{font-size:13.8px;color:var(--ink-3);margin:0}
.lf-sub a{color:var(--brand-1);font-weight:600}
.lf-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.lf-horizontal .lf-grid{grid-template-columns:repeat(4,1fr)}
.lf-grid label,.lf-full{
  display:block;font-size:13.8px;color:var(--ink-2);font-weight:600;
}
.lf-grid label i,.lf-full i{color:var(--brand-1);font-style:normal}
.lead-form input[type=text],.lead-form input[type=email],.lead-form input[type=tel],
.lead-form select,.lead-form textarea{
  width:100%;margin-top:7px;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;font-size:14.6px;font-weight:400;color:var(--ink);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.lead-form textarea{resize:vertical;line-height:1.7}
.lead-form input:focus,.lead-form select:focus,.lead-form textarea:focus{
  border-color:var(--brand-1);outline:none;box-shadow:0 0 0 4px rgba(11,79,232,.12);
}
.lf-full{display:block;margin-top:14px}
.lf-foot{display:flex;gap:18px;align-items:flex-start;justify-content:space-between;margin:16px 0 18px;flex-wrap:wrap}
.lf-checks{display:grid;gap:9px;flex:1;min-width:240px}
.lf-check{display:flex;gap:9px;align-items:flex-start;font-size:13.2px;color:var(--ink-3);font-weight:400;line-height:1.6}
.lf-check input{margin-top:3px;accent-color:var(--brand-1)}
.lf-check a{color:var(--brand-1)}
.lf-captcha{display:grid;gap:6px}
.lf-captcha input{width:130px}
.lf-captcha img{height:40px;border-radius:8px;border:1px solid var(--line)}
.lf-captcha span{font-size:12px;color:var(--ink-4)}
.lf-captcha-img{height:44px;border-radius:8px;border:1px solid var(--line);cursor:pointer}
.lf-privacy{font-size:12.5px;color:var(--ink-4);margin-top:12px;line-height:1.7}
.lf-privacy a{color:var(--brand-1)}
/* 表单提交成功态：整块替换表单，移动端也能一眼看到 */
.lf-success{text-align:center;padding:30px 20px 26px;border:1px solid #c9ecd6;border-radius:16px;
  background:linear-gradient(180deg,#f4fcf7 0%,#fff 70%);animation:lfOkIn .36s var(--ease) both}
.lf-success .lf-ok{display:inline-flex;align-items:center;justify-content:center;width:58px;height:58px;border-radius:50%;
  background:#12a150;color:#fff;font-size:30px;font-weight:700;box-shadow:0 8px 22px rgba(18,161,80,.24);margin-bottom:14px}
.lf-success h3{font-size:21px;margin:0 0 8px;color:var(--ink)}
.lf-success-lead{font-size:15px;color:var(--ink-2);margin:0 0 6px}
.lf-success-sub{font-size:14px;color:var(--ink-3);margin:0 0 4px;line-height:1.7}
.lf-success-tip{font-size:13.5px;color:var(--ink-3);margin:0 0 16px}
.lf-success-tip a{color:var(--brand-1);font-weight:600}
.lf-success .btn{margin:0 auto}
@keyframes lfOkIn{from{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:none}}
.hp{position:absolute!important;left:-9999px;opacity:0;height:0;width:0}
.form-side .form-points{display:grid;gap:10px;margin-top:16px}
.form-side .form-points li{
  position:relative;padding-left:26px;color:var(--ink-2);font-size:15px;
}
.form-side .form-points li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:8px;border-left:2px solid var(--brand-1);border-bottom:2px solid var(--brand-1);
  transform:rotate(-45deg);
}
.form-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:52px;align-items:start}
/* 侧栏里的紧凑表单 */
.list-side .lead-form,.detail-side .lead-form{
  border:1px solid var(--line);border-radius:var(--r);padding:22px;background:#fff;box-shadow:var(--sh-1);
}
.list-side .lf-grid,.detail-side .lf-grid{grid-template-columns:1fr;gap:12px}
/* 问卷 */
.survey-form{border:1px solid var(--line);border-radius:var(--r);padding:28px;background:#fff;box-shadow:var(--sh-1)}
.form-row{margin-bottom:18px}
.form-row>label{display:block;font-size:14.6px;font-weight:600;margin-bottom:8px}
.form-row .opts{display:grid;gap:8px}
.form-row .opts label{display:flex;gap:9px;align-items:center;font-weight:400;font-size:14.4px;color:var(--ink-2)}
.form-row input[type=radio],.form-row input[type=checkbox]{accent-color:var(--brand-1)}
.form-row input[type=text],.form-row input[type=email],.form-row textarea,.form-row select{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-sm);font-size:14.6px;
}

/* ============================== 15. 页脚 ============================== */
.site-footer{position:relative;overflow:hidden;background:var(--dark);color:rgba(255,255,255,.72);padding:60px 0 0}
.site-footer__dots{opacity:.14}
.site-footer .container{position:relative;z-index:2}
.footer__top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer__brand .logo__text b{color:#fff}
.footer__brand .logo__text i{color:rgba(255,255,255,.5)}
.footer__desc{margin:18px 0 20px;font-size:14.2px;line-height:1.8}
.footer__contact{display:grid;gap:11px}
.footer__contact>div{display:flex;gap:10px;align-items:flex-start;font-size:14px}
.footer__contact svg{flex:0 0 auto;color:var(--brand-2);margin-top:3px}
.footer__contact b{color:#fff;font-weight:600}
.footer__col h4{font-size:15.5px;color:#fff;margin-bottom:16px}
.footer__col ul{display:grid;gap:10px}
.footer__col a{font-size:14.2px;color:rgba(255,255,255,.72)}
.footer__col a:hover{color:var(--brand-2)}
.footer__quick{
  display:flex;flex-wrap:wrap;gap:8px 22px;padding:20px 0;border-top:1px solid rgba(255,255,255,.10);
}
.footer__quick a{font-size:14px;color:rgba(255,255,255,.68)}
.footer__quick a:hover{color:var(--brand-2)}
.footer__bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.10);padding:18px 0;font-size:13.2px;color:rgba(255,255,255,.52);
}
.footer__bottom a{color:rgba(255,255,255,.62)}
.footer__bottom a:hover{color:var(--brand-2)}

/* ============================== 16. 浮动客服 / 二维码 ============================== */
.float-contact{
  position:fixed;right:18px;bottom:96px;z-index:80;display:grid;gap:10px;
}
.float-contact__item{
  position:relative;width:50px;height:50px;border-radius:14px;background:#fff;border:1px solid var(--line);
  color:var(--ink-2);display:grid;place-items:center;box-shadow:var(--sh-1);transition:all .24s var(--ease);
}
.float-contact__item span{
  position:absolute;right:calc(100% + 12px);top:50%;transform:translateY(-50%) scale(.96);
  background:var(--dark);color:#fff;font-size:13px;padding:7px 12px;border-radius:9px;white-space:nowrap;
  opacity:0;visibility:hidden;transition:all .22s var(--ease);
}
.float-contact__item:hover{background-image:var(--brand-grad);color:#fff;border-color:transparent;transform:translateY(-2px)}
.float-contact__item:hover span{opacity:1;visibility:visible;transform:translateY(-50%) scale(1)}
.float-contact__top{opacity:0;pointer-events:none}
.float-contact__top.is-on{opacity:1;pointer-events:auto}
.qr-pop{
  position:fixed;right:18px;bottom:96px;z-index:85;width:200px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r);padding:18px;text-align:center;box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all .26s var(--ease);
}
.qr-pop::after{
  content:"";position:absolute;right:26px;bottom:-7px;width:14px;height:14px;background:#fff;
  border-right:1px solid var(--line);border-bottom:1px solid var(--line);transform:rotate(45deg);
}
.qr-pop.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.qr-pop__code{border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:12px}
.qr-pop__code svg{display:block;width:100%;height:auto}
.qr-pop b{display:block;font-size:14.5px;margin-bottom:4px}
.qr-pop span{font-size:12.8px;color:var(--ink-3)}

/* 在线客服面板（沿用既有交互，重绘外观） */
.chat-widget{position:fixed;right:18px;bottom:22px;z-index:86}
.chat-panel{
  position:absolute;right:0;bottom:66px;width:344px;max-width:calc(100vw - 32px);background:#fff;
  border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh-3);overflow:hidden;display:flex;flex-direction:column;
}
.chat-panel[hidden]{display:none}
.chat-head{background-image:var(--brand-grad);color:#fff;padding:16px 18px;position:relative}
.chat-head strong{display:block;font-size:15.5px}
.chat-head span{font-size:12.6px;opacity:.9}
.chat-close{position:absolute;right:10px;top:10px;color:#fff;font-size:20px;line-height:1;padding:4px 8px;border-radius:8px}
.chat-close:hover{background:rgba(255,255,255,.18)}
.chat-body{max-height:min(300px,40vh);overflow-y:auto;padding:16px;display:grid;gap:12px;background:var(--soft)}
.chat-msg{max-width:82%;padding:11px 14px;border-radius:14px;font-size:14.2px;line-height:1.7;word-break:break-word}
.chat-msg.admin,.chat-msg.bot{background:#fff;border:1px solid var(--line);border-top-left-radius:4px;justify-self:start}
.chat-msg.bot{max-width:88%;border-left:3px solid var(--brand-1);box-shadow:0 2px 10px rgba(11,79,232,.05)}
.chat-msg.visitor{background-image:var(--brand-grad);color:#fff;border-top-right-radius:4px;justify-self:end}
.chat-who{display:block;font-size:11px;font-weight:700;color:var(--brand-1);letter-spacing:.02em;margin-bottom:3px}
.chat-text{display:block;white-space:pre-wrap}
/* 机器人给出的站内入口 */
.chat-links{display:flex;flex-wrap:wrap;gap:6px;margin-top:9px}
.chat-links a{
  font-size:12px;font-weight:600;padding:4px 11px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-1);transition:all .2s var(--ease);
}
.chat-links a:hover{background:var(--brand-line);color:var(--brand-deep)}
/* 快捷问题条 */
.chat-quick{
  display:flex;gap:6px;overflow-x:auto;padding:10px 12px;
  border-bottom:1px solid var(--line);background:#FAFCFF;scrollbar-width:none;
}
.chat-quick::-webkit-scrollbar{display:none}
.chat-quick button{
  flex:0 0 auto;font-size:12.5px;padding:6px 12px;border-radius:999px;white-space:nowrap;
  border:1px solid var(--brand-line);background:#fff;color:var(--brand-1);transition:all .2s var(--ease);
}
.chat-quick button:hover{background:var(--brand-soft);border-color:var(--brand-1)}
/* 留资卡片（中性引导，可随时关闭） */
.chat-lead{border-top:1px solid var(--brand-line);background:linear-gradient(180deg,#F7FBFF,#EDF4FF);padding:13px 14px 11px}
.chat-lead[hidden]{display:none}
.chat-lead__title{font-size:13.4px;font-weight:700;color:var(--brand-deep);margin:0 0 4px;letter-spacing:.01em}
.chat-lead__sub{font-size:12.2px;line-height:1.65;color:var(--ink-3);margin:0 0 10px}
.chat-lead__form{display:grid;grid-template-columns:1fr 1.15fr auto;gap:6px}
.chat-lead__form input{
  min-width:0;padding:9px 10px;border:1px solid var(--brand-line);border-radius:8px;
  font-size:13px;background:#fff;color:var(--ink-1);font-family:inherit;
}
.chat-lead__form input:focus{outline:2px solid rgba(11,79,232,.16);border-color:var(--brand-1)}
.chat-lead__form .btn{padding:0 12px;height:34px;font-size:12.5px;white-space:nowrap}
.chat-lead__foot{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:8px;font-size:11.2px;color:var(--ink-4)}
.chat-lead__foot button{border:0;background:none;color:var(--ink-3);font-size:11.6px;text-decoration:underline;padding:2px;cursor:pointer}
.chat-lead__foot button:hover{color:var(--brand-1)}
/* 机器人"正在输入" */
.typing-dots{display:inline-flex;align-items:center;gap:4px;padding:5px 0 3px}
.typing-dots i{width:6px;height:6px;border-radius:50%;background:var(--brand-2);animation:typingDot 1.1s infinite ease-in-out}
.typing-dots i:nth-child(2){animation-delay:.16s}
.typing-dots i:nth-child(3){animation-delay:.32s}
@keyframes typingDot{0%,60%,100%{opacity:.28;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}
/* 转人工 */
.chat-handoff{border:0;background:none;color:var(--brand-1);font-weight:700;font-size:11.8px;padding:0 2px;text-decoration:underline}
.chat-handoff:hover{color:var(--brand-deep)}
.chat-msg img{max-width:190px;border-radius:9px;display:block}
.chat-tools{display:flex;gap:8px;align-items:center;padding:12px;border-top:1px solid var(--line)}
.chat-tools input[type=text]{flex:1;padding:10px 12px;border:1px solid var(--line);border-radius:9px;font-size:14px}
.chat-img-btn{width:36px;height:36px;display:grid;place-items:center;border:1px solid var(--line);border-radius:9px;cursor:pointer}
.chat-tip{padding:9px 12px 12px;font-size:11.8px;color:var(--ink-4);line-height:1.6}
.chat-fabs{display:flex;gap:8px}
.fab{
  width:50px;height:50px;border-radius:14px;background-image:var(--brand-grad);color:#fff;display:grid;place-items:center;
  font-size:19px;box-shadow:var(--brand-shadow);transition:transform .22s var(--ease);
}
.fab:hover{color:#fff;transform:translateY(-2px)}
.fab-top{opacity:.94}
.fab{position:relative}
.fab-dot{
  position:absolute;top:-3px;right:-3px;width:12px;height:12px;border-radius:50%;
  background:#ff4d4f;border:2px solid #fff;box-shadow:0 0 0 0 rgba(255,77,79,.55);
  animation:dotPulse 1.9s ease-out infinite;
}
.fab-dot[hidden]{display:none}
@keyframes dotPulse{0%{box-shadow:0 0 0 0 rgba(255,77,79,.5)}70%{box-shadow:0 0 0 9px rgba(255,77,79,0)}100%{box-shadow:0 0 0 0 rgba(255,77,79,0)}}

/* 进站邀请气泡：先摇一下按钮、再浮出小气泡，5 秒后展开对话框 */
.chat-teaser{
  position:absolute;right:0;bottom:66px;width:262px;max-width:calc(100vw - 32px);
  background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh-3);
  padding:13px 34px 13px 15px;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(12px) scale(.94);transform-origin:100% 100%;
  transition:opacity .26s var(--ease),transform .32s cubic-bezier(.2,.8,.3,1.06),visibility .26s;
}
.chat-teaser[hidden]{display:none}
.chat-teaser.is-in{opacity:1;visibility:visible;transform:none}
.chat-teaser::after{
  content:"";position:absolute;right:22px;bottom:-7px;width:13px;height:13px;
  background:#fff;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transform:rotate(45deg);
}
.chat-teaser b{display:block;font-size:13.8px;color:var(--ink-1);margin-bottom:4px;letter-spacing:.01em}
.chat-teaser span{display:block;font-size:12.4px;line-height:1.65;color:var(--ink-3)}
.chat-teaser__x{
  position:absolute;right:5px;top:5px;width:24px;height:24px;border-radius:8px;border:0;background:none;
  color:var(--ink-4);font-size:16px;line-height:1;cursor:pointer;
}
.chat-teaser__x:hover{background:#f2f5fa;color:var(--ink-2)}
.chat-teaser:hover{border-color:var(--brand-line);box-shadow:var(--sh-2)}

/* 弹出动作：缩放上浮 + 轻微回弹，让访客注意到对话框 */
.chat-panel.is-open{animation:chatPop .52s cubic-bezier(.2,.78,.28,1.04)}
@keyframes chatPop{
  0%{opacity:0;transform:translateY(22px) scale(.92)}
  62%{opacity:1;transform:translateY(-5px) scale(1.015)}
  100%{opacity:1;transform:none}
}
.chat-fabs .fab.nudge{animation:chatNudge .86s cubic-bezier(.36,.07,.19,.97) 2}
@keyframes chatNudge{
  0%,100%{transform:none}
  14%{transform:rotate(-9deg) scale(1.05)}
  32%{transform:rotate(8deg) scale(1.05)}
  50%{transform:rotate(-5deg) scale(1.02)}
  70%{transform:rotate(4deg)}
  86%{transform:rotate(-2deg)}
}
@media (prefers-reduced-motion:reduce){
  .chat-panel.is-open,.chat-fabs .fab.nudge,.fab-dot{animation:none}
  .chat-teaser{transition:none}
}

/* ============================== 17. 入场动效 ============================== */
/*
  门控：<html class="js-anim"> 由 head 内联脚本在解析前立即写入。
  · 无 JS / 爬虫直读 / 打印：不加该类，所有内容 100% 可见，不影响 SEO 与可读性
  · 目标集合须与 assets/js/main.js 的 REV 常量保持一致
  · 归位采用 animation（backwards）而非 transform:none，
    动画结束后不保留 transform 声明，卡片 hover 等变换不受干扰
*/
:where(html.js-anim) :is(.reveal,.section-head,.card,.tech-item,.news-item,.scene-item,
  .service-list>a,.detail-block,.side-box,.faq-item,.related-list>li,.cta-band,
  .form-side,.filter,.pager,.empty,.intro-nums,.detail-title,.detail-meta,
  .article-hero,.article-foot,.list-side>div,.detail-side>div,
  .footer__top>div,.footer__bottom):not(.is-in){opacity:0}
:where(html.js-anim) :is(.reveal,.section-head,.card,.tech-item,.news-item,.scene-item,
  .service-list>a,.detail-block,.side-box,.faq-item,.related-list>li,.cta-band,
  .form-side,.filter,.pager,.empty,.intro-nums,.detail-title,.detail-meta,
  .article-hero,.article-foot,.list-side>div,.detail-side>div,
  .footer__top>div,.footer__bottom).is-in{
  opacity:1;
  animation:revUp .78s var(--ease) backwards;
  animation-delay:calc(var(--d,0) * 85ms);
  transform-origin:50% 60%;
}
/* 方向变体（JS 按模块类型分配） */
:where(html.js-anim) .rev-left.is-in{animation-name:revLeft}
:where(html.js-anim) .rev-right.is-in{animation-name:revRight}
:where(html.js-anim) .rev-zoom.is-in{animation-name:revZoom}
:where(html.js-anim) .rev-fade.is-in{animation-name:revFade}

@keyframes revUp{from{opacity:0;transform:translate3d(0,30px,0)}to{opacity:1;transform:none}}
@keyframes revLeft{from{opacity:0;transform:translate3d(-42px,0,0)}to{opacity:1;transform:none}}
@keyframes revRight{from{opacity:0;transform:translate3d(42px,0,0)}to{opacity:1;transform:none}}
@keyframes revZoom{from{opacity:0;transform:translate3d(0,36px,0) scale(.94)}to{opacity:1;transform:none}}
@keyframes revFade{from{opacity:0}to{opacity:1}}

/* 首屏：图缓慢推近 + 文案分层浮现（每次轮播切换自动重播） */
.hero-slide.on img{animation:heroZoom 15s cubic-bezier(.2,.6,.3,1) forwards}
.hero-slide.on .hero-caption .eyebrow{animation:revUp .8s var(--ease) .06s backwards}
.hero-slide.on .hero-caption h2{animation:revUp .92s var(--ease) .18s backwards}
.hero-slide.on .hero-caption p{animation:revUp .92s var(--ease) .3s backwards}
.hero-slide.on .hero-caption .btn{animation:revUp .92s var(--ease) .42s backwards}
.hero-slide.on .hero-dots-none{animation:none}
@keyframes heroZoom{from{transform:scale(1.09)}to{transform:scale(1)}}

/* 内页页头：标题 / 摘要 / 面包屑依次上浮 */
.page-hero__inner>*{animation:revUp .8s var(--ease) backwards}
.page-hero__inner>*:nth-child(1){animation-delay:.05s}
.page-hero__inner>*:nth-child(2){animation-delay:.16s}
.page-hero__inner>*:nth-child(3){animation-delay:.27s}

/* 标题渐变缓慢流动，强化科技质感 */
.section-head h2 em{background-size:220% 100%;animation:gradShift 7s ease-in-out infinite alternate}
@keyframes gradShift{from{background-position:0% 50%}to{background-position:100% 50%}}

/* 滚动进度条（由 JS 注入） */
.scroll-bar{
  position:fixed;left:0;top:0;height:3px;width:100%;z-index:1200;
  transform:scaleX(0);transform-origin:0 50%;
  background-image:var(--brand-grad);box-shadow:0 0 12px rgba(18,166,255,.55);
  pointer-events:none;transition:transform .1s linear;
}

@media (prefers-reduced-motion:reduce){
  :where(html.js-anim) :is(.reveal,.section-head,.card,.tech-item,.news-item,.scene-item,
  .service-list>a,.detail-block,.side-box,.faq-item,.related-list>li,.cta-band,
  .form-side,.filter,.pager,.empty,.intro-nums,.detail-title,.detail-meta,
  .article-hero,.article-foot,.list-side>div,.detail-side>div,
  .footer__top>div,.footer__bottom):not(.is-in){opacity:1}
  :where(html.js-anim) :is(.reveal,.section-head,.card,.tech-item,.news-item,.scene-item,
  .service-list>a,.detail-block,.side-box,.faq-item,.related-list>li,.cta-band,
  .form-side,.filter,.pager,.empty,.intro-nums,.detail-title,.detail-meta,
  .article-hero,.article-foot,.list-side>div,.detail-side>div,
  .footer__top>div,.footer__bottom).is-in,
  .hero-slide.on img,
  .hero-slide.on .hero-caption>*,
  .page-hero__inner>*,
  .section-head h2 em{animation:none;opacity:1}
  .scroll-bar{display:none}
  html{scroll-behavior:auto}
}

/* ============================== 18. 响应式 ============================== */
@media (max-width:1080px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .tech-grid{grid-template-columns:repeat(2,1fr)}
  .list-layout,.detail-layout{grid-template-columns:1fr;gap:34px}
  .list-side,.detail-side{position:static}
  .intro-wrap,.service-split,.form-wrap{grid-template-columns:1fr;gap:32px}
  .footer__top{grid-template-columns:1fr 1fr;gap:30px}
  .hero-track{height:430px}
  .hero-caption h2{font-size:34px}
  .section-head h2{font-size:29px}
  .nav-toggle{display:block}
  .header__cta{display:none}
  .nav{
    position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--sh-2);padding:12px 20px 20px;display:none;
  }
  .nav.open{display:block}
  .nav__list{display:block}
  .nav__list>li{border-bottom:1px solid var(--line-2)}
  .nav__list>li>a{padding:13px 2px}
  .nav__list>li>a.is-active::after{display:none}
  .nav__sub{position:static;display:none;border:0;box-shadow:none;padding:0 0 10px 12px;min-width:0}
  .nav__sub.is-open{display:block}
  .nav__sub a{padding:9px 2px;font-size:14.2px;color:var(--ink-3)}
}
@media (max-width:760px){
  body{font-size:15px}
  .container{padding:0 16px}
  .section{padding:52px 0}
  .grid-2,.grid-3,.grid-4,.tech-grid,.scene-grid,.related-list{grid-template-columns:1fr}
  .page-hero{padding:40px 0 36px}
  .page-hero h1{font-size:29px}
  .hero-track{height:360px;aspect-ratio:auto}
  .hero-caption h2{font-size:26px}
  .hero-caption p{font-size:15px}
  .intro-nums{grid-template-columns:repeat(2,1fr)}
  .lf-grid,.lf-horizontal .lf-grid{grid-template-columns:1fr}
  .footer__top{grid-template-columns:1fr;gap:26px}
  .news-item{grid-template-columns:1fr;gap:8px;padding:18px 2px}
  .news-item time{order:-1}
  .cta-band{padding:32px 26px;border-radius:var(--r)}
  .cta-band h2{font-size:22px}
  .float-contact{bottom:84px;right:12px}
  .float-contact__item{width:44px;height:44px;border-radius:12px}
  .float-contact__item span{display:none}
  .qr-pop{right:12px;bottom:84px;width:180px}
  .topbar__inner{justify-content:center}
  .topbar__links{display:none}
  .detail-title{font-size:24px}
  .section-head h2{font-size:25px}
  .err-code{font-size:72px}
  /* 右上角入口在窄屏转为一行操作条 */
  .section-bar__more{flex-direction:row;align-items:center;justify-content:space-between;width:100%;gap:12px}
  .product-row .product-card__body h3{min-height:0}
  /* 地图窄屏：降高 + 地址与按钮分两行 */
  .map-live{height:300px}
  .map-actions{flex-direction:column;align-items:flex-start;gap:10px}
}

/* 客服留资卡片：窄屏两行布局，避免输入框被挤压 */
@media (max-width:480px){
  .chat-panel{width:calc(100vw - 26px)}
  .chat-lead__form{grid-template-columns:1fr 1fr}
  .chat-lead__form .btn{grid-column:1/-1;height:36px}
  .chat-body{max-height:38vh}
}