/* ==========================================================================
   江门市城安消防技术有限公司 官网 全局样式表  style.css
   设计风格：商务稳重 · 深蓝主色 + 浅灰辅助
   结构说明：
     1. 变量与基础重置
     2. 通用布局容器 / 栅格
     3. 顶部信息条 + 吸顶导航
     4. Banner 大图
     5. 通用区块标题 / 卡片 / 按钮
     6. 首页专用（核心优势、数据、业务入口、案例预览）
     7. 内页专用（关于 / 业务 / 案例轮播 / 资质 / 联系）
     8. 页脚
     9. 返回顶部按钮
    10. 响应式适配（1024 / 768 / 480）
   ========================================================================== */

/* ---------- 1. 变量与基础重置 ---------- */
:root{
  --primary:#0B2A5B;        /* 主色：深蓝 */
  --primary-2:#17457F;      /* 主色浅一档：渐变、悬浮 */
  --primary-3:#3E6CB5;      /* 主色浅二档：图标、线条 */
  --accent:#C0392B;         /* 点缀色：消防红（仅少量使用） */
  --bg:#F4F6F9;             /* 页面浅灰背景 */
  --bg-2:#E9EDF3;           /* 浅灰深一档 */
  --white:#FFFFFF;
  --text:#22303F;           /* 正文深色 */
  --muted:#6B7A8D;          /* 辅助说明文字 */
  --border:#E2E8F0;         /* 分隔线 */
  --radius:8px;
  --shadow:0 6px 24px rgba(11,42,91,.08);
  --shadow-hover:0 12px 32px rgba(11,42,91,.16);
  --container:1200px;       /* 内容最大宽度 */
  --nav-h:74px;             /* 导航高度 */

  /* 侧边工具条图标（内联 SVG，避免额外请求） */
  --ico-tel:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="%23000" d="M6.6 10.8c1.3 2.5 3.4 4.6 5.9 5.9l2-2c.3-.3.7-.4 1-.2 1.1.4 2.3.6 3.5.6.5 0 .9.4.9.9V20c0 .5-.4.9-.9.9A16.5 16.5 0 0 1 2 4.9C2 4.4 2.4 4 2.9 4H6c.5 0 .9.4.9.9c0 1.2.2 2.4.6 3.5.1.4 0 .7-.2 1l-1.7 1.4z"/></svg>');
  --ico-msg:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="%23000" d="M4 4h16a1 1 0 0 1 1 1v11a1 1 0 0 1-1 1H9l-5 4v-4H4a1 1 0 0 1-1-1V5a1 1 0 0 1 1-1z"/></svg>');
  --ico-up:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="%23000" d="M12 5l7 7h-4v7h-6v-7H5l7-7z"/></svg>');
}

*{margin:0;padding:0;box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;height:auto;}
a{text-decoration:none;color:inherit;transition:color .2s;}
ul,ol{list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}

/* ---------- 2. 通用布局容器 / 栅格 ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}

/* 通用区块：上下留白 */
.section{padding:72px 0;}
.section--gray{background:var(--bg);}          /* 浅灰背景区块 */
.section--white{background:var(--white);}
.section--blue{background:var(--primary);color:#fff;}

/* 三列卡片栅格：桌面3列 → 平板2列 → 手机1列 */
.grid{display:grid;gap:28px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

/* ---------- 3. 顶部信息条 + 吸顶导航 ---------- */

/* 3.1 顶部窄信息条（手机端隐藏） */
.topbar{
  background:var(--primary);
  color:rgba(255,255,255,.85);
  font-size:13px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:40px;}
.topbar span{margin-right:22px;}
.topbar a:hover{color:#fff;}

/* 3.2 导航主体：滚动时吸顶（position:sticky） */
.header{
  position:sticky;top:0;z-index:900;
  background:#fff;
  border-bottom:1px solid var(--border);
  transition:box-shadow .3s;
}
/* JS 监听滚动后添加该类，吸顶时加深阴影 */
.header.scrolled{box-shadow:0 4px 18px rgba(11,42,91,.12);}
.header .container{display:flex;align-items:center;justify-content:space-between;height:var(--nav-h);}

/* Logo 区：图形 + 文字 */
.logo{display:flex;align-items:center;gap:12px;}
.logo-mark{
  width:44px;height:44px;border-radius:6px;flex:0 0 44px;
  background:linear-gradient(135deg,var(--primary),var(--primary-3));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:700;font-size:18px;letter-spacing:1px;
}
.logo-txt strong{display:block;font-size:20px;color:var(--primary);letter-spacing:2px;line-height:1.3;}
.logo-txt small{display:block;font-size:12px;color:var(--muted);letter-spacing:1px;}

/* 导航菜单 */
.nav{display:flex;align-items:center;}
.nav li{position:relative;}
.nav > li > a{
  display:block;padding:0 20px;height:var(--nav-h);line-height:var(--nav-h);
  font-size:16px;color:var(--text);position:relative;
}
.nav > li > a::after{  /* 底部红色指示条 */
  content:"";position:absolute;left:20px;right:20px;bottom:0;height:3px;
  background:var(--accent);transform:scaleX(0);transition:transform .25s;
}
.nav > li > a:hover{color:var(--primary);}
.nav > li > a:hover::after,
.nav > li > a.active::after{transform:scaleX(1);}
.nav > li > a.active{color:var(--primary);font-weight:600;}

/* 导航右侧电话 CTA */
.header-cta{
  background:var(--primary);color:#fff;padding:10px 20px;border-radius:4px;font-size:15px;
  display:flex;align-items:center;gap:8px;white-space:nowrap;
}
.header-cta:hover{background:var(--primary-2);color:#fff;}

/* 移动端汉堡按钮 */
.menu-toggle{display:none;width:44px;height:44px;position:relative;}
.menu-toggle span{
  position:absolute;left:10px;right:10px;height:2px;background:var(--primary);
  transition:all .3s;
}
.menu-toggle span:nth-child(1){top:15px;}
.menu-toggle span:nth-child(2){top:21px;}
.menu-toggle span:nth-child(3){top:27px;}
.menu-toggle.open span:nth-child(1){top:21px;transform:rotate(45deg);}
.menu-toggle.open span:nth-child(2){opacity:0;}
.menu-toggle.open span:nth-child(3){top:21px;transform:rotate(-45deg);}

/* ---------- 4. Banner 大图 ---------- */
.hero{
  position:relative;height:520px;overflow:hidden;
  background:linear-gradient(120deg,#061A3A 0%,var(--primary) 45%,var(--primary-2) 100%);
  display:flex;align-items:center;
}
/* 背景占位图（上线替换 assets/img/hero-banner.jpg 即可） */
.hero-bg{
  position:absolute;inset:0;
  background:url("../img/hero-banner.jpg") center/cover no-repeat;
  opacity:.55;
}
.hero-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,26,58,.92) 0%,rgba(6,26,58,.72) 55%,rgba(6,26,58,.35) 100%);}
.hero-inner{position:relative;z-index:2;color:#fff;max-width:760px;}
.hero-tag{
  display:inline-block;font-size:14px;letter-spacing:2px;
  border:1px solid rgba(255,255,255,.45);border-radius:20px;
  padding:5px 16px;margin-bottom:22px;color:rgba(255,255,255,.9);
}
.hero h1{
  font-size:44px;line-height:1.35;font-weight:700;letter-spacing:1px;
  margin-bottom:20px;text-shadow:0 2px 12px rgba(0,0,0,.25);
}
.hero h1 em{font-style:normal;color:#FFC72C;}
.hero p{font-size:17px;color:rgba(255,255,255,.86);margin-bottom:32px;line-height:1.9;}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;}

/* 内页小 Banner */
.page-banner{
  position:relative;height:260px;display:flex;align-items:center;overflow:hidden;
  background:linear-gradient(120deg,#061A3A,var(--primary-2));
}
.page-banner .bg{
  position:absolute;inset:0;
  background-repeat:no-repeat;background-size:cover;background-position:center;opacity:.45;
}
.page-banner .mask{position:absolute;inset:0;background:rgba(6,26,58,.62);}
.page-banner .container{position:relative;z-index:2;color:#fff;}
.page-banner h2{font-size:38px;letter-spacing:2px;font-weight:700;margin-bottom:10px;}
.page-banner .crumbs{font-size:13px;color:rgba(255,255,255,.7);margin-top:10px;}
.page-banner .crumbs a:hover{color:#fff;}

/* 内页 Banner 增强：英文眉标 + 一句页面说明 */
.page-banner{height:280px;}
.pb-eyebrow{
  display:inline-block;font-size:13px;letter-spacing:5px;color:#FF8A6B;font-weight:700;
  margin-bottom:12px;
}
.page-banner h2{
  position:relative;padding-bottom:14px;display:inline-block;
}
.page-banner h2::after{
  content:"";position:absolute;left:0;bottom:0;width:56px;height:3px;background:var(--accent);border-radius:2px;
}
.pb-desc{
  font-size:16px;color:rgba(255,255,255,.82);margin-top:14px;letter-spacing:1px;
}

/* 面包屑导航条（浅色，位于内页 banner 下方） */
.crumb-bar{background:var(--bg);border-bottom:1px solid var(--border);font-size:14px;color:var(--muted);}
.crumb-bar .container{display:flex;align-items:center;height:46px;}
.crumb-bar a:hover{color:var(--primary);}

/* ---------- 5. 通用区块标题 / 卡片 / 按钮 ---------- */
.sec-head{text-align:center;margin-bottom:48px;}
.sec-head h2{
  font-size:32px;color:var(--primary);font-weight:700;letter-spacing:1px;position:relative;
  padding-bottom:18px;display:inline-block;
}
.sec-head h2::after{  /* 标题下方短红线 */
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:0;width:56px;height:3px;background:var(--accent);border-radius:2px;
}
.sec-head p{margin-top:14px;color:var(--muted);font-size:15px;letter-spacing:1px;}
.sec-head.left{text-align:left;}
.sec-head.left h2::after{left:0;transform:none;}

/* 按钮 */
.btn{
  display:inline-block;padding:13px 32px;border-radius:4px;font-size:15px;
  transition:all .25s;border:1px solid transparent;letter-spacing:1px;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-2);color:#fff;box-shadow:0 6px 18px rgba(11,42,91,.28);}
.btn-outline{border-color:#fff;color:#fff;}
.btn-outline:hover{background:#fff;color:var(--primary);}
.btn-ghost{border-color:var(--primary);color:var(--primary);}
.btn-ghost:hover{background:var(--primary);color:#fff;}
.btn-block{display:block;width:100%;text-align:center;}

/* 通用白卡片 */
.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:32px 28px;transition:all .3s;height:100%;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:transparent;}
.card .icon{
  width:56px;height:56px;border-radius:10px;margin-bottom:18px;
  background:linear-gradient(135deg,var(--primary),var(--primary-3));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:24px;font-weight:700;
}
.card h3{font-size:19px;color:var(--primary);margin-bottom:12px;letter-spacing:1px;}
.card p{color:var(--muted);font-size:15px;line-height:1.85;}

/* ---------- 6. 首页专用样式 ---------- */

/* 6.1 公司简介：左文右图 */
.intro-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.intro-lead{font-size:17px;color:var(--text);line-height:2;margin-bottom:18px;}
.intro-lead b{color:var(--primary);}
.intro-list{margin-top:22px;display:grid;grid-template-columns:1fr 1fr;gap:12px 20px;}
.intro-list li{position:relative;padding-left:24px;color:var(--muted);font-size:15px;}
.intro-list li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:50%;background:var(--primary-3);
}
.intro-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}

/* 6.2 核心优势：5 列图标条 */
.adv-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:24px;}
.adv-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:30px 20px;text-align:center;transition:all .3s;
}
.adv-item:hover{background:var(--primary);border-color:var(--primary);}
.adv-item:hover h4,.adv-item:hover p{color:#fff;}
.adv-ico{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;
  background:var(--bg);display:flex;align-items:center;justify-content:center;
  font-size:26px;color:var(--primary);transition:all .3s;
}
.adv-item:hover .adv-ico{background:rgba(255,255,255,.16);color:#fff;}
.adv-item h4{font-size:17px;color:var(--primary);margin-bottom:10px;transition:color .3s;}
.adv-item p{font-size:14px;color:var(--muted);line-height:1.75;transition:color .3s;}

/* 6.3 数据统计条 */
.stat-bar{background:linear-gradient(120deg,var(--primary),var(--primary-2));color:#fff;padding:56px 0;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center;}
.stat-item .num{font-size:40px;font-weight:700;line-height:1.2;letter-spacing:1px;}
.stat-item .num small{font-size:20px;font-weight:400;}
.stat-item .label{font-size:15px;color:rgba(255,255,255,.75);margin-top:6px;letter-spacing:1px;}

/* 6.4 业务快捷入口 */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.entry-item{
  position:relative;display:block;border-radius:var(--radius);overflow:hidden;
  height:230px;color:#fff;box-shadow:var(--shadow);
}
.entry-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.entry-item:hover img{transform:scale(1.08);}
.entry-item .mask{
  position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,26,58,.15),rgba(6,26,58,.9));
  display:flex;flex-direction:column;justify-content:flex-end;padding:24px;
}
.entry-item h3{font-size:20px;margin-bottom:6px;letter-spacing:1px;}
.entry-item span{font-size:14px;color:rgba(255,255,255,.8);}
.entry-item .arrow{position:absolute;right:24px;top:24px;font-size:22px;opacity:.7;transition:all .3s;}
.entry-item:hover .arrow{transform:translate(4px,-4px);opacity:1;}

/* 6.5 首页案例预览 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.case-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:all .3s;
}
.case-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.case-card .thumb{position:relative;overflow:hidden;height:200px;}
.case-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.case-card:hover .thumb img{transform:scale(1.06);}
.case-card .tag{
  position:absolute;left:14px;top:14px;background:var(--accent);color:#fff;
  font-size:12px;padding:4px 12px;border-radius:3px;letter-spacing:1px;
}
.case-card .body{padding:22px 24px 26px;}
.case-card h3{font-size:18px;color:var(--primary);margin-bottom:10px;}
.case-card p{font-size:14px;color:var(--muted);line-height:1.8;}
.case-card .meta{margin-top:14px;font-size:13px;color:var(--primary-3);}

/* 6.6 首页 CTA 咨询条 */
.cta-bar{padding:60px 0;text-align:center;}
.cta-bar h2{font-size:30px;color:var(--primary);margin-bottom:14px;letter-spacing:1px;}
.cta-bar p{color:var(--muted);margin-bottom:26px;}

/* ---------- 7. 内页专用样式 ---------- */

/* 7.1 关于我们 */
.timeline{border-left:2px solid var(--border);padding-left:30px;margin-left:10px;}
.timeline li{position:relative;padding-bottom:34px;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";position:absolute;left:-37px;top:6px;width:14px;height:14px;border-radius:50%;
  background:var(--primary);border:3px solid #fff;box-shadow:0 0 0 2px var(--primary);
}
.timeline .year{color:var(--primary);font-weight:700;font-size:18px;letter-spacing:1px;}
.timeline .txt{color:var(--muted);font-size:15px;}

/* 左右图文块：even 顺序反转 */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;margin-bottom:64px;}
.feature-row:last-child{margin-bottom:0;}
.feature-row.reverse .feature-img{order:2;}
.feature-row.reverse .feature-txt{order:1;}
.feature-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.feature-txt h3{font-size:26px;color:var(--primary);margin-bottom:16px;letter-spacing:1px;}
.feature-txt .sub{color:var(--primary-3);font-size:14px;letter-spacing:2px;margin-bottom:14px;}
.feature-txt p{color:var(--muted);line-height:2;margin-bottom:14px;}
.feature-txt ul li{position:relative;padding-left:22px;color:var(--muted);font-size:15px;margin-bottom:8px;}
.feature-txt ul li::before{content:"";position:absolute;left:0;top:13px;width:8px;height:8px;border-radius:2px;background:var(--primary-3);}

/* 7.2 业务服务：流程步骤 */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
.step-item{text-align:center;position:relative;}
.step-item .no{
  width:64px;height:64px;margin:0 auto 16px;border-radius:50%;
  background:#fff;border:2px solid var(--primary);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;
}
.step-item:not(:last-child)::after{  /* 步骤之间的虚线连接 */
  content:"";position:absolute;top:32px;left:calc(50% + 42px);right:calc(-50% + 42px);
  border-top:2px dashed var(--border);
}
.step-item h4{font-size:17px;color:var(--primary);margin-bottom:8px;}
.step-item p{font-size:14px;color:var(--muted);}

/* 说明 / 提示框（用于页面中的诚实说明、注意事项） */
.notice{
  background:#fff;border:1px solid var(--border);border-left:4px solid var(--primary-3);
  border-radius:var(--radius);padding:22px 26px;color:var(--muted);
  font-size:15px;line-height:2;
}
.notice b{color:var(--text);}
.notice ul{margin-top:10px;}
.notice li{position:relative;padding-left:22px;}
.notice li::before{
  content:"";position:absolute;left:0;top:14px;width:8px;height:8px;border-radius:50%;background:var(--primary-3);
}

/* 服务对象标签（胶囊标签） */
.chip-list{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.chip{
  background:#fff;border:1px solid var(--border);border-radius:20px;
  padding:8px 20px;font-size:14px;color:var(--text);transition:all .25s;
}
.chip:hover{background:var(--primary);color:#fff;border-color:var(--primary);}

/* 7.3 项目案例：筛选 + 轮播 */
.filter-bar{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:36px;}
.filter-btn{
  padding:9px 24px;border:1px solid var(--border);border-radius:22px;
  font-size:15px;color:var(--text);background:#fff;transition:all .25s;
}
.filter-btn:hover{border-color:var(--primary);color:var(--primary);}
.filter-btn.active{background:var(--primary);color:#fff;border-color:var(--primary);}

/* 轮播容器 */
.carousel{
  position:relative;border-radius:var(--radius);overflow:hidden;
  background:var(--primary);box-shadow:var(--shadow);
}
.carousel .viewport{position:relative;height:460px;}
.carousel .slide{
  position:absolute;inset:0;opacity:0;transition:opacity .6s;display:flex;
}
.carousel .slide.active{opacity:1;}
.carousel .slide img{width:100%;height:100%;object-fit:cover;}
.carousel .cap{
  position:absolute;left:0;bottom:0;right:0;padding:34px 40px;
  background:linear-gradient(0deg,rgba(6,26,58,.92),rgba(6,26,58,0));color:#fff;
}
.carousel .cap h3{font-size:26px;margin-bottom:8px;letter-spacing:1px;}
.carousel .cap p{font-size:15px;color:rgba(255,255,255,.82);}
.carousel .ctrl{
  position:absolute;top:50%;transform:translateY(-50%);width:46px;height:46px;border-radius:50%;
  background:rgba(255,255,255,.85);color:var(--primary);font-size:24px;line-height:46px;text-align:center;
  transition:all .25s;z-index:5;
}
.carousel .ctrl:hover{background:#fff;}
.carousel .prev{left:16px;}
.carousel .next{right:16px;}
.carousel .dots{position:absolute;right:24px;top:20px;z-index:5;display:flex;gap:8px;}
.carousel .dots i{
  width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.45);cursor:pointer;transition:all .25s;
}
.carousel .dots i.active{background:#fff;width:24px;border-radius:5px;}

/* 案例列表网格 */
.case-list{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:56px;}

/* 7.4 资质荣誉：证书墙 */
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;}
.cert-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
  text-align:center;transition:all .3s;cursor:zoom-in;
}
.cert-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.cert-item .pic{
  padding:18px;background:var(--bg);border-bottom:1px dashed var(--border);
  display:flex;align-items:center;justify-content:center;height:300px;
}
.cert-item .pic img{max-height:100%;width:auto;object-fit:contain;}
.cert-item h4{font-size:16px;color:var(--text);padding:16px 12px;}
.cert-item p{font-size:13px;color:var(--muted);padding:0 12px 18px;}

/* 荣誉列表（文字型） */
.honor-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.honor-list li{
  display:flex;gap:14px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);padding:20px 22px;align-items:flex-start;
}
.honor-list .medal{
  flex:0 0 40px;height:40px;border-radius:6px;background:var(--primary);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;
}
.honor-list strong{display:block;color:var(--primary);font-size:16px;margin-bottom:4px;}
.honor-list span{font-size:14px;color:var(--muted);}

/* 图片灯箱 */
.lightbox{
  position:fixed;inset:0;background:rgba(6,26,58,.92);z-index:2000;
  display:none;align-items:center;justify-content:center;padding:40px;
}
.lightbox.show{display:flex;}
.lightbox img{max-width:90%;max-height:86%;border:6px solid #fff;border-radius:4px;}
.lightbox .close{
  position:absolute;right:30px;top:24px;color:#fff;font-size:40px;line-height:1;opacity:.85;
}
.lightbox .cap-text{position:absolute;bottom:30px;color:#fff;font-size:16px;letter-spacing:1px;}

/* 7.5 联系我们 */
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:52px;}
.info-card{
  background:#fff;border:1px solid var(--border);border-left:4px solid var(--primary);
  border-radius:var(--radius);padding:26px 28px;margin-bottom:20px;
}
.info-card h3{font-size:18px;color:var(--primary);margin-bottom:12px;letter-spacing:1px;}
.info-card p{color:var(--muted);font-size:15px;line-height:1.9;}
.info-card .big{font-size:24px;color:var(--accent);font-weight:700;letter-spacing:1px;}

/* 表单 */
.form-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:38px 36px;box-shadow:var(--shadow);}
.form-row{margin-bottom:20px;}
.form-row label{display:block;font-size:15px;color:var(--text);margin-bottom:8px;}
.form-row label i{color:var(--accent);font-style:normal;margin-right:4px;}
.form-row input,.form-row textarea{
  width:100%;border:1px solid var(--border);border-radius:4px;padding:12px 14px;
  font-size:15px;font-family:inherit;color:var(--text);background:#fff;transition:border-color .2s;
}
.form-row input:focus,.form-row textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(11,42,91,.08);}
.form-row textarea{resize:vertical;min-height:130px;}
.form-row.err input,.form-row.err textarea{border-color:var(--accent);}
.form-tip{display:none;color:var(--accent);font-size:13px;margin-top:6px;}
.form-row.err .form-tip{display:block;}
.form-note{font-size:13px;color:var(--muted);margin-top:14px;}
.form-msg{display:none;margin-top:18px;padding:14px 18px;border-radius:4px;font-size:15px;}
.form-msg.ok{display:block;background:#EAF6EE;border:1px solid #B6E0C4;color:#1E7A3C;}

/* ---------- 8. 页脚 ---------- */
.footer{background:#071B3D;color:rgba(255,255,255,.75);font-size:14px;}
.footer-top{padding:56px 0 36px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer h4{color:#fff;font-size:17px;margin-bottom:20px;letter-spacing:1px;position:relative;padding-bottom:12px;}
.footer h4::after{content:"";position:absolute;left:0;bottom:0;width:32px;height:2px;background:var(--accent);}
.footer ul li{margin-bottom:10px;}
.footer ul li a:hover{color:#fff;}
.footer .intro p{line-height:1.9;margin-top:16px;}
.footer-contact li{display:flex;gap:10px;line-height:1.9;}
.footer-contact b{color:#fff;font-weight:400;}
/* 服务时间（原二维码占位位置，改为更有用的信息） */
.footer-svc{margin-top:14px;padding-top:14px;border-top:1px solid rgba(255,255,255,.14);}
.footer-svc li{display:flex;gap:10px;line-height:1.9;font-size:13px;}
.footer-svc b{color:#fff;font-weight:400;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;text-align:center;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a:hover{color:#fff;}

/* ---------- 8b. 相关站点（页脚上方的外链区） ---------- */
.friend-link{background:var(--bg);border-top:1px solid var(--border);padding:18px 0;}
.friend-link .container{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 20px;font-size:13px;}
.fl-title{color:var(--text);font-weight:600;flex:0 0 auto;position:relative;padding-left:12px;}
.fl-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:12px;background:var(--accent);border-radius:2px;
}
.fl-list{display:flex;flex-wrap:wrap;gap:8px 22px;}
.friend-link a{color:var(--muted);}
.friend-link a:hover{color:var(--primary);text-decoration:underline;}

/* ---------- 8c. 政策与技术依据（首页） ---------- */
.std-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;max-width:1000px;margin:0 auto;}
.std-item{
  display:flex;gap:16px;align-items:flex-start;background:#fff;
  border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px;
}
.std-item .code{
  flex:0 0 auto;font-size:13px;font-weight:700;color:var(--primary);
  background:var(--bg);border:1px solid var(--border);border-radius:4px;
  padding:4px 10px;letter-spacing:.5px;white-space:nowrap;
}
.std-item b{display:block;font-size:15.5px;color:var(--text);font-weight:600;margin-bottom:4px;}
.std-item span{font-size:13.5px;color:var(--muted);line-height:1.7;}
.std-note{
  max-width:1000px;margin:24px auto 0;font-size:13px;color:var(--muted);
  text-align:center;line-height:1.8;
}

/* ---------- 9. 返回顶部 ---------- */
#toTop{
  position:fixed;right:24px;bottom:34px;width:46px;height:46px;border-radius:50%;
  background:var(--primary);color:#fff;font-size:20px;line-height:46px;text-align:center;
  box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:all .3s;z-index:800;
}
#toTop.show{opacity:.9;visibility:visible;}
#toTop:hover{opacity:1;background:var(--primary-2);}

/* ---------- 9.5 新版视觉组件（v2 改版新增） ---------- */

/* 9.5.1 阅读滚动进度条 */
.nav-progress{
  position:absolute;left:0;bottom:-1px;height:2px;width:0;
  background:linear-gradient(90deg,var(--accent),#FF7A5C);
  transition:width .1s linear;z-index:5;
}

/* 9.5.2 滚动淡入：初始下沉透明，JS 添加 .in 后复位 */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s cubic-bezier(.22,.8,.3,1);transition-delay:var(--d,0ms);}
.reveal.in{opacity:1;transform:none;}
/* 关闭动画偏好用户的动效 */
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* 9.5.3 小眉标题（区块标题上方的红色小字标签） */
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:3px;color:var(--accent);
  font-weight:700;margin-bottom:10px;position:relative;padding-left:20px;
}
.eyebrow::before{
  content:"";position:absolute;left:0;top:50%;width:12px;height:2px;background:var(--accent);
}
.eyebrow--light{color:#FF8A6B;}
.eyebrow--light::before{background:#FF8A6B;}

/* 9.5.4 新版首屏 Hero：左文右屏双栏 */
.hero--v2{height:auto;min-height:600px;padding:76px 0 84px;}
.hero-grid{
  position:absolute;inset:0;z-index:1;opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:linear-gradient(90deg,#000 0%,rgba(0,0,0,.35) 60%,transparent 100%);
  -webkit-mask-image:linear-gradient(90deg,#000 0%,rgba(0,0,0,.35) 60%,transparent 100%);
}
.hero-wrap{position:relative;z-index:3;display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;}
.hero-inner{max-width:100%;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:1px;
  border:1px solid rgba(255,255,255,.4);border-radius:20px;padding:6px 16px;
  margin-bottom:22px;color:rgba(255,255,255,.92);background:rgba(255,255,255,.06);
  backdrop-filter:blur(4px);
}
.hero-tag .dot{
  width:7px;height:7px;border-radius:50%;background:#4ADE80;box-shadow:0 0 0 4px rgba(74,222,128,.25);
  animation:blink 1.8s infinite;
}
@keyframes blink{0%,100%{opacity:1;}50%{opacity:.35;}}
.hero--v2 h1{font-size:52px;line-height:1.28;margin-bottom:14px;letter-spacing:0;}
.hero--v2 h1 em{color:#FFC72C;position:relative;}
.hero-sub{
  font-size:18px;color:rgba(255,255,255,.95);margin-bottom:16px;letter-spacing:1px;
  padding-left:14px;border-left:3px solid var(--accent);
}
.hero-desc{font-size:16px;color:rgba(255,255,255,.78);margin-bottom:30px;line-height:1.95;max-width:600px;}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;}
.hero-trust{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:30px;}
.hero-trust li{
  position:relative;padding-left:26px;font-size:14px;color:rgba(255,255,255,.88);
}
.hero-trust li::before{
  content:"";position:absolute;left:0;top:8px;width:16px;height:9px;
  border-left:2px solid #4ADE80;border-bottom:2px solid #4ADE80;transform:rotate(-45deg);
}

/* 右侧：监控中心实拍照片框（干净版，不做浮夸装饰） */
.hero-visual{position:relative;}
.photo-frame{
  margin:0;padding:8px;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.2);border-radius:10px;
  box-shadow:0 24px 50px rgba(0,0,0,.4);
}
.photo-frame img{width:100%;display:block;border-radius:5px;}
.photo-frame figcaption{
  margin-top:12px;padding:0 4px 2px;font-size:13px;letter-spacing:1px;
  color:rgba(255,255,255,.72);text-align:center;
}

/* 向下滚动提示 */
.scroll-hint{
  position:absolute;left:50%;bottom:22px;transform:translateX(-50%);z-index:4;
  width:26px;height:42px;border:2px solid rgba(255,255,255,.5);border-radius:14px;display:block;
}
.scroll-hint span{
  position:absolute;left:50%;top:8px;width:3px;height:8px;border-radius:2px;background:#fff;
  transform:translateX(-50%);animation:wheel 1.8s infinite;
}
@keyframes wheel{0%{opacity:0;top:8px;}30%{opacity:1;}100%{opacity:0;top:22px;}}

/* 首屏逐条入场（纯 CSS，无 JS 依赖） */
@keyframes heroIn{from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:none;}}
.hero--v2 .hero-inner > *{animation:heroIn .75s cubic-bezier(.22,.8,.3,1) both;}
.hero--v2 .hero-inner > *:nth-child(1){animation-delay:.05s;}
.hero--v2 .hero-inner > *:nth-child(2){animation-delay:.15s;}
.hero--v2 .hero-inner > *:nth-child(3){animation-delay:.28s;}
.hero--v2 .hero-inner > *:nth-child(4){animation-delay:.40s;}
.hero--v2 .hero-inner > *:nth-child(5){animation-delay:.52s;}
.hero--v2 .hero-inner > *:nth-child(6){animation-delay:.64s;}
.hero--v2 .hero-visual{animation:heroIn .9s cubic-bezier(.22,.8,.3,1) .3s both;}
@media (prefers-reduced-motion:reduce){
  .hero--v2 .hero-inner > *,.hero--v2 .hero-visual{animation:none;}
}

/* 9.5.5 痛点板块 */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.pain-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:34px 30px 30px;
  transition:all .3s;position:relative;overflow:hidden;
}
.pain-item::after{
  content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .35s;
}
.pain-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-5px);}
.pain-item:hover::after{transform:scaleX(1);}
.pain-q{display:flex;gap:14px;align-items:flex-start;margin-bottom:16px;}
.q-mark{
  flex:0 0 34px;height:34px;border-radius:50%;background:rgba(192,57,43,.1);color:var(--accent);
  display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;
}
.pain-q h3{font-size:20px;line-height:1.6;color:var(--primary);letter-spacing:0;}
.pain-item > p{font-size:15px;color:var(--muted);line-height:1.9;margin-bottom:18px;}
.pain-ans{
  background:var(--bg);border-left:3px solid var(--primary-3);border-radius:0 6px 6px 0;
  padding:14px 18px;font-size:14px;color:var(--muted);line-height:1.8;
}
.pain-ans b{color:var(--primary);}

/* 9.5.6 对比板块 */
.vs-wrap{display:grid;grid-template-columns:1fr auto 1fr;gap:24px;align-items:center;}
.vs-col{
  background:#fff;border:1px solid var(--border);border-radius:12px;padding:32px 30px;height:100%;
}
.vs-new{border-color:var(--primary);box-shadow:0 18px 40px rgba(11,42,91,.16);}
.vs-head{margin-bottom:22px;padding-bottom:18px;border-bottom:1px dashed var(--border);}
.vs-badge{
  display:inline-block;font-size:12px;letter-spacing:2px;padding:5px 14px;border-radius:20px;
  background:var(--bg-2);color:var(--muted);margin-bottom:12px;
}
.vs-badge.hot{background:var(--primary);color:#fff;}
.vs-head h3{font-size:21px;color:var(--text);letter-spacing:0;}
.vs-list li{
  display:flex;gap:14px;padding:13px 0;border-bottom:1px solid var(--border);
  font-size:15px;color:var(--muted);line-height:1.7;
}
.vs-list li:last-child{border-bottom:none;}
.vs-list li span{
  flex:0 0 76px;color:var(--text);font-weight:600;font-size:14px;
}
.vs-old .vs-list li{flex-wrap:wrap;}
.vs-new .vs-list li{color:var(--text);}
.vs-arrow{color:var(--primary-3);display:flex;align-items:center;justify-content:center;}

/* 9.5.7 深色区块 + 处置链路时间线 */
.section--dark{background:linear-gradient(160deg,#061A3A 0%,#0B2A5B 60%,#123A72 100%);color:rgba(255,255,255,.82);position:relative;overflow:hidden;}
.section--dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.4;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
}
.chain-sec .container{position:relative;z-index:2;}
.sec-head.light h2{color:#fff;}
.sec-head.light p{color:rgba(255,255,255,.5);}

.chain{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:8px;}
.chain-line{
  position:absolute;left:12.5%;right:12.5%;top:31px;height:2px;background:rgba(255,255,255,.16);
}
.chain-fill{
  display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent),#FFC72C);
  transition:width 1.6s ease;
}
.chain-item{position:relative;text-align:left;}
.chain-node span{
  width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);border:2px solid rgba(255,255,255,.5);color:#fff;
  font-size:20px;font-weight:700;letter-spacing:1px;
}
.chain-body{margin-top:20px;}
.chain-body h3{font-size:19px;color:#fff;margin-bottom:10px;letter-spacing:1px;}
.chain-body p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);margin-bottom:14px;}
.chain-tag{
  display:inline-block;font-size:12px;padding:5px 12px;border-radius:4px;
  background:rgba(255,255,255,.1);color:rgba(255,255,255,.85);letter-spacing:1px;
}

/* 9.5.8 公司简介：图片上的实拍角标 */
.intro-img{position:relative;}
.intro-badge{
  position:absolute;right:0;bottom:0;background:var(--primary);color:#fff;
  padding:16px 22px;border-radius:10px 0 0 0;display:flex;gap:12px;align-items:center;
}
.intro-badge b{
  background:var(--accent);font-size:11px;letter-spacing:1px;padding:3px 8px;border-radius:3px;font-weight:400;
}
.intro-badge span{font-size:13px;line-height:1.6;}

/* 9.5.9 核心优势：图标 + 序号（覆盖旧版汉字圆形图标） */
.adv-item{text-align:left;padding:30px 26px;}
.adv-ico{
  width:58px;height:58px;border-radius:14px;margin:0;
  background:linear-gradient(135deg,var(--primary),var(--primary-3));
  color:#fff;display:flex;align-items:center;justify-content:center;
  transition:all .3s;
}
.adv-ico svg{width:30px;height:30px;display:block;}
.adv-item:hover .adv-ico{background:rgba(255,255,255,.18);}
.adv-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.adv-no{font-size:30px;font-weight:800;color:var(--bg-2);font-style:italic;letter-spacing:-1px;transition:color .3s;}
.adv-item:hover .adv-no{color:rgba(255,255,255,.28);}
.adv-item h4{font-size:18px;}
.adv-item p{font-size:14.5px;}

/* 9.5.10 底部 CTA：深色强化版 */
.cta-bar--v2{
  background:linear-gradient(120deg,#04122B 0%,var(--primary) 55%,#17457F 100%);
  color:rgba(255,255,255,.85);padding:72px 0;text-align:center;position:relative;overflow:hidden;
}
.cta-bar--v2::before{
  content:"";position:absolute;inset:0;opacity:.35;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:44px 44px;
}
.cta-bar--v2 .container{position:relative;z-index:2;}
.cta-bar--v2 h2{font-size:32px;color:#fff;margin-bottom:16px;letter-spacing:1px;}
.cta-bar--v2 p{max-width:760px;margin:0 auto 30px;line-height:2;}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#A93226;color:#fff;box-shadow:0 8px 24px rgba(192,57,43,.35);}

/* 9.5.11 常见问题手风琴 */
.faq-wrap{max-width:920px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  margin-bottom:14px;overflow:hidden;transition:all .3s;
}
.faq-item.open{border-color:var(--primary-3);box-shadow:var(--shadow);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 26px;text-align:left;font-size:17px;line-height:1.6;color:var(--primary);
  font-weight:600;font-family:inherit;
}
.faq-item.open .faq-q{color:var(--primary-2);}
.faq-q .sign{
  flex:0 0 26px;height:26px;border-radius:50%;background:var(--bg);color:var(--primary);
  position:relative;transition:all .3s;
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;
  transform:translate(-50%,-50%);transition:transform .3s;
}
.faq-q .sign::before{width:12px;height:2px;}
.faq-q .sign::after{width:2px;height:12px;}
.faq-item.open .faq-q .sign{background:var(--primary);color:#fff;}
.faq-item.open .faq-q .sign::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-a p{padding:0 26px 22px;color:var(--muted);font-size:15px;line-height:2;}

/* 9.5.12 移动端底部快捷联系条 */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:950;
  background:#fff;border-top:1px solid var(--border);box-shadow:0 -6px 20px rgba(11,42,91,.12);
}
.mobile-bar a{
  flex:1;text-align:center;padding:14px 0;font-size:15px;letter-spacing:1px;
}
.mb-tel{background:var(--primary);color:#fff;}
.mb-msg{color:var(--primary);border-left:1px solid var(--border);}

/* ---------- 9.6 资讯中心（news.html） ---------- */
.news-list{max-width:920px;margin:0 auto;}

/* 单条资讯：点击标题区域展开/收起全文（复用 FAQ 手风琴脚本） */
.news-item{padding:0;}
.news-head{
  display:grid;grid-template-columns:120px 1fr 26px;align-items:start;gap:18px;
  padding:22px 26px;
}
.news-item.open .news-head{border-bottom:1px solid var(--border);}

.news-meta{display:flex;flex-direction:column;gap:8px;padding-top:2px;}
.news-date{
  font-size:15px;font-weight:700;color:var(--primary);letter-spacing:.5px;
  font-family:Georgia,"Times New Roman",serif;
}
.news-cat{
  display:inline-block;align-self:flex-start;font-size:12px;line-height:1;
  padding:5px 9px;border-radius:3px;font-weight:600;letter-spacing:1px;
}
.cat-policy{background:rgba(11,42,91,.08);color:var(--primary);}
.cat-std{background:rgba(192,57,43,.10);color:var(--accent);}
.cat-tech{background:rgba(62,108,181,.12);color:var(--primary-2);}
.cat-corp{background:rgba(34,197,94,.12);color:#1E8449;}

.news-title{
  font-size:18px;line-height:1.7;color:var(--text);font-weight:600;
  transition:color .25s;
}
.news-item:hover .news-title{color:var(--primary-2);}
.news-item.open .news-title{color:var(--primary);}
.news-head .sign{margin-top:2px;}

/* 展开后的正文排版 */
.news-body{padding:22px 26px 26px;}
.news-sum{
  font-size:15px;line-height:1.85;color:var(--text);
  padding:14px 18px;background:var(--bg);border-left:3px solid var(--primary-3);
  border-radius:0 var(--radius) var(--radius) 0;margin-bottom:18px;
}
.news-body h4{
  font-size:15px;color:var(--primary);margin:20px 0 10px;font-weight:700;
  padding-left:10px;border-left:3px solid var(--accent);line-height:1.4;
}
.news-body p{font-size:15px;line-height:1.9;color:var(--muted);margin-bottom:12px;}
.news-body ul{margin:0 0 12px;padding-left:20px;}
.news-body li{font-size:15px;line-height:1.9;color:var(--muted);margin-bottom:6px;}
.news-body b{color:var(--text);}
.news-src{
  font-size:13px!important;color:#8A94A6!important;
  border-top:1px dashed var(--border);padding-top:14px!important;margin-bottom:0!important;
}
.news-src a{color:var(--primary-3);text-decoration:underline;}

/* ---------- 9.7 侧边悬浮客服工具条（PC 显示） ---------- */
.side-tools{
  position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:80;
  display:flex;flex-direction:column;gap:10px;
}
.side-tools .st-item{
  width:58px;height:58px;border-radius:10px;background:#fff;
  border:1px solid var(--border);box-shadow:0 6px 20px rgba(11,42,91,.12);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  font-size:11px;color:var(--muted);transition:all .25s;
}
.side-tools .st-item:hover{
  background:var(--primary);color:#fff;border-color:var(--primary);
  transform:translateX(-3px);box-shadow:0 10px 26px rgba(11,42,91,.22);
}
.side-tools .st-item i{width:18px;height:18px;display:block;background:currentColor;
  -webkit-mask-size:contain;mask-size:contain;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;}
.st-item.st-tel i{-webkit-mask-image:var(--ico-tel);mask-image:var(--ico-tel);}
.st-item.st-msg i{-webkit-mask-image:var(--ico-msg);mask-image:var(--ico-msg);}
.st-item.st-top i{-webkit-mask-image:var(--ico-up);mask-image:var(--ico-up);}

/* ---------- 9.8 首页最新资讯（三栏概览） ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-mini{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:24px 22px;display:flex;flex-direction:column;gap:12px;transition:all .3s;
}
.news-mini:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--primary-3);}
.news-mini .nm-top{display:flex;align-items:center;gap:10px;}
.news-mini .nm-date{font-size:13px;color:var(--muted);}
.news-mini h3{font-size:17px;line-height:1.65;color:var(--text);font-weight:600;}
.news-mini:hover h3{color:var(--primary);}
.news-mini p{font-size:14px;line-height:1.85;color:var(--muted);flex:1;}
.news-mini .nm-more{font-size:14px;color:var(--primary-2);font-weight:600;}

/* ---------- 9.9 页脚主体登记信息 ---------- */
.reg-info{
  margin-top:8px;font-size:12px;line-height:1.9;color:#8A94A6;
  border-top:1px dashed rgba(255,255,255,.14);padding-top:10px;
}

/* ---------- 9.6 解决方案按行业（Solution by Industry） ---------- */
.ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}

.ind-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:10px;
  padding:30px 26px 26px;position:relative;overflow:hidden;
  transition:box-shadow .32s ease,transform .32s cubic-bezier(.22,.8,.3,1),border-color .32s ease;
}
/* 顶部细红条：hover 时从左向右展开 */
.ind-card::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;
  background:var(--accent);transition:width .38s cubic-bezier(.22,.8,.3,1);
}
/* 右下角淡淡的水印图标 */
.ind-card::after{
  content:"";position:absolute;right:-18px;bottom:-18px;width:96px;height:96px;border-radius:50%;
  background:var(--primary);opacity:.035;transition:transform .45s ease;
}
.ind-card:hover{
  box-shadow:0 16px 36px rgba(11,42,91,.13);transform:translateY(-6px);border-color:transparent;
}
.ind-card:hover::before{width:100%;}
.ind-card:hover::after{transform:scale(1.35);}

.ind-ico{
  width:52px;height:52px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(145deg,#EEF3FB 0%,#DFE9F7 100%);color:var(--primary);
  border:1px solid #D9E4F4;margin-bottom:18px;position:relative;z-index:1;
  transition:background .32s ease,color .32s ease;
}
.ind-ico svg{width:26px;height:26px;}
.ind-card:hover .ind-ico{background:var(--primary);color:#fff;}

.ind-card b{display:block;font-size:19px;color:var(--text);letter-spacing:1px;position:relative;z-index:1;}
.ind-card em{
  display:block;font-style:normal;font-size:14px;color:var(--muted);line-height:1.75;
  margin-top:8px;position:relative;z-index:1;
}
.ind-go{
  display:inline-block;font-style:normal;font-size:13px;color:var(--primary);font-weight:600;
  margin-top:16px;letter-spacing:1px;position:relative;z-index:1;transition:color .3s ease;
}
.ind-card:hover .ind-go{color:var(--accent);}

/* 从首页按业态跳转过来时，目标卡片短暂高亮，提示"就是这张" */
@keyframes indFlash{
  0%{box-shadow:0 0 0 0 rgba(192,57,43,.34);}
  70%{box-shadow:0 0 0 14px rgba(192,57,43,0);}
  100%{box-shadow:0 0 0 0 rgba(192,57,43,0);}
}
.case-card.flash{
  border-color:var(--accent);
  animation:indFlash 1.5s ease-out;
}

/* ---------- 10. 响应式适配 ---------- */

/* <=1200px：容器略缩 */
@media (max-width:1200px){
  .container{max-width:100%;padding:0 24px;}
  .hero h1{font-size:38px;}
  .hero--v2 h1{font-size:44px;}
  .hero-wrap{gap:36px;}
}

/* <=1024px：导航折叠为汉堡菜单 */
@media (max-width:1024px){
  .topbar{display:none;}
  .ind-grid{grid-template-columns:repeat(2,1fr);gap:18px;}
  .menu-toggle{display:block;}
  .header-cta{display:none;}
  /* 移动端下拉菜单：默认收起，JS 添加 .open 展开 */
  .nav{
    display:block;position:absolute;left:0;right:0;top:var(--nav-h);
    background:#fff;border-bottom:1px solid var(--border);
    max-height:0;overflow:hidden;transition:max-height .35s ease;
    box-shadow:0 10px 20px rgba(11,42,91,.08);
  }
  .nav.open{max-height:520px;}
  .nav > li > a{height:52px;line-height:52px;border-top:1px solid var(--border);padding:0 24px;}
  .nav > li > a::after{display:none;}
  .nav > li > a.active{background:var(--bg);}

  .intro-wrap,.feature-row,.contact-wrap{grid-template-columns:1fr;gap:36px;}
  .feature-row.reverse .feature-img,.feature-row.reverse .feature-txt{order:0;}
  .grid-3,.grid-4,.entry-grid,.case-grid,.case-list,.footer-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(3,1fr);gap:18px;}
  .side-tools{right:10px;}
  .adv-grid{grid-template-columns:repeat(3,1fr);}
  .cert-grid{grid-template-columns:repeat(3,1fr);}
  .step-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .step-item:not(:last-child)::after{display:none;}
  .hero{height:460px;}
  .footer-top{gap:28px;}

  /* —— v2 新增组件的平板适配 —— */
  .hero--v2{min-height:auto;padding:56px 0 64px;}
  .hero-wrap{grid-template-columns:1fr;gap:40px;}
  .hero--v2 h1{font-size:40px;}
  .hero-visual{max-width:560px;}
  .pain-grid{grid-template-columns:repeat(2,1fr);}
  .vs-wrap{grid-template-columns:1fr;gap:20px;}
  .vs-arrow{transform:rotate(90deg);}
  .chain{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .chain-line{display:none;}
}

/* <=768px：平板竖屏 / 大屏手机 */
@media (max-width:768px){
  body{font-size:15px;}
  .section{padding:52px 0;}
  .sec-head{margin-bottom:36px;}
  .sec-head h2{font-size:26px;}
  .hero{height:auto;padding:70px 0;}
  .hero h1{font-size:28px;}
  .hero p{font-size:15px;}
  .hero-btns .btn{flex:1;text-align:center;min-width:140px;}
  .page-banner{height:190px;}
  .page-banner h2{font-size:26px;}

  .grid-2,.grid-3,.grid-4,.adv-grid,.entry-grid,.case-grid,.case-list,
  .cert-grid,.honor-list,.intro-list,.footer-grid{grid-template-columns:1fr;}
  .cert-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
  .adv-grid{grid-template-columns:repeat(2,1fr);}
  .ind-grid{grid-template-columns:1fr;gap:14px;}
  .ind-card{padding:22px 20px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
  .ind-ico{width:44px;height:44px;margin-bottom:0;flex:0 0 44px;}
  .ind-ico svg{width:22px;height:22px;}
  .ind-card b{flex:1 1 auto;}
  .ind-card em{flex:1 1 100%;margin-top:4px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:28px 12px;}
  .stat-item .num{font-size:32px;}
  .step-grid{grid-template-columns:1fr;}

  /* 资讯中心：手机端改为单列纵排，整行可点 */
  .news-grid{grid-template-columns:1fr;}
  .news-head{grid-template-columns:1fr;gap:12px;padding:20px;}
  .news-meta{flex-direction:row;align-items:center;gap:12px;padding-top:0;}
  .news-head .sign{display:none;}
  .news-title{font-size:16px;}
  .news-body{padding:18px 20px 22px;}
  /* 手机端已有底部联系条，隐藏侧边工具条避免遮挡 */
  .side-tools{display:none;}

  .feature-txt h3{font-size:22px;}
  .carousel .viewport{height:300px;}
  .carousel .cap{padding:22px;}
  .carousel .cap h3{font-size:19px;}
  .carousel .ctrl{width:38px;height:38px;line-height:38px;font-size:20px;}
  .form-card{padding:26px 22px;}
  .info-card{padding:20px;}

  /* —— v2 新增组件的手机适配 —— */
  body{padding-bottom:56px;}                 /* 给底部联系条留位 */
  .mobile-bar{display:flex;}                 /* 显示悬浮联系条 */
  .hero--v2{padding:44px 0 60px;}
  .hero--v2 h1{font-size:29px;line-height:1.4;}
  .hero-sub{font-size:15px;}
  .hero-desc{font-size:14.5px;margin-bottom:24px;}
  .hero-trust{gap:8px 18px;margin-top:22px;}
  .hero-trust li{font-size:13px;}
  .hero-visual{max-width:100%;}
  .scroll-hint{display:none;}
  .std-grid{grid-template-columns:1fr;}
  .std-item{flex-direction:column;gap:10px;padding:18px 20px;}
  .pain-grid{grid-template-columns:1fr;gap:18px;}
  .pain-item{padding:26px 22px;}
  .vs-col{padding:24px 20px;}
  .vs-list li{flex-direction:column;gap:4px;}
  .vs-list li span{flex:none;}
  .chain{grid-template-columns:1fr;gap:26px;}
  .chain-item{display:flex;gap:18px;align-items:flex-start;}
  .chain-node span{width:52px;height:52px;font-size:17px;flex:0 0 52px;}
  .chain-body{margin-top:0;}
  .cta-bar--v2{padding:52px 0;}
  .cta-bar--v2 h2{font-size:24px;}
  .cta-btns .btn{flex:1;min-width:150px;text-align:center;}
  .faq-q{padding:16px 18px;font-size:15.5px;gap:14px;}
  .faq-q .sign{flex:0 0 24px;height:24px;}
  .faq-a p{padding:0 18px 18px;font-size:14.5px;}
  .intro-badge{padding:12px 16px;}
  .intro-badge span{font-size:12px;}
}

/* <=480px：小屏手机 */
@media (max-width:480px){
  .container{padding:0 16px;}
  .cert-grid{grid-template-columns:1fr;}
  .adv-grid{grid-template-columns:1fr;}
  .logo-txt strong{font-size:17px;}
  .logo-mark{width:38px;height:38px;flex:0 0 38px;font-size:15px;}
  .footer-top{padding:40px 0 26px;}
  #toTop{right:14px;bottom:20px;}
}

/* 打印样式：方便投标时直接打印网页 */
@media print{
  .header,.topbar,.footer,.hero,#toTop,.cta-bar,.mobile-bar,.scroll-hint{display:none!important;}
  body{background:#fff;padding-bottom:0;}
  .section{padding:20px 0;}
  .reveal{opacity:1!important;transform:none!important;}
  .section--dark{background:#fff!important;color:var(--text)!important;}
  .section--dark h2,.chain-body h3{color:var(--primary)!important;}
  .chain-body p{color:var(--muted)!important;}
  .faq-a{max-height:none!important;}   /* 打印时全部答案展开 */
}