/* ============================================================
   达州掌讯官网 · 明亮权威设计系统 v3
   设计语言：暖白底 + 深藏青权威主色 + 品牌蓝强调 + 暖橙 CTA
            浅色内容区为主，深藏青大区块（轮播/数据带/CTA/页脚）营造明暗节奏
   ============================================================ */
:root{
  /* —— 基础色板（浅色）—— */
  --bg:#F6F8FB;
  --bg-soft:#EEF3F9;
  --surface:#FFFFFF;
  --surface-2:#F8FAFD;
  --line:#E4EAF3;
  --line-strong:#D3DCEA;

  /* —— 文字 —— */
  --ink:#0E2244;
  --ink-2:#4E5F7D;
  --ink-3:#8593AB;

  /* —— 品牌主色（权威蓝）—— */
  --brand:#1D5BD8;
  --brand-strong:#1448AE;
  --brand-soft:#EBF1FE;
  --brand-glow:rgba(29,91,216,.25);

  /* —— 强调（暖橙 CTA，品牌记忆）—— */
  --accent:#F97316;
  --accent-strong:#EA6A0C;
  --accent-soft:#FEF0E4;

  /* —— 深藏青（深色区块）—— */
  --navy:#0A1E3E;
  --navy-2:#0F2C58;

  /* —— 渐变 —— */
  --grad:linear-gradient(135deg,#1448AE 0%,#1D5BD8 55%,#3B82F6 100%);
  --grad-navy:linear-gradient(135deg,#0A1E3E 0%,#0F2C58 60%,#14417E 100%);
  --grad-warm:linear-gradient(135deg,#F97316,#F0512C);

  /* —— 兼容旧变量名（页面内联样式引用，勿删）—— */
  --c-primary:#1D5BD8;
  --c-primary-700:#1448AE;
  --c-primary-900:#0A1E3E;
  --c-primary-50:#EBF1FE;
  --c-primary-100:#DCE8FC;
  --c-accent:#F97316;
  --c-accent-d:#EA6A0C;
  --c-ink:#0E2244;
  --c-ink-2:#4E5F7D;
  --c-ink-3:#8593AB;
  --c-line:#E4EAF3;
  --c-line-2:#EDF1F7;
  --c-bg:#F6F8FB;
  --c-white:#FFFFFF;

  --radius:16px;
  --radius-sm:12px;
  --radius-lg:22px;
  --shadow-sm:0 2px 12px rgba(14,34,68,.07);
  --shadow:0 16px 44px rgba(14,34,68,.12);
  --shadow-lg:0 28px 70px rgba(14,34,68,.16);
  --ease:.3s cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
body{
  font-family:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink-2);
  background:var(--bg);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
/* 顶部柔和光斑，替代死板网格 */
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(900px 480px at 12% -6%,rgba(29,91,216,.07),transparent 62%),
    radial-gradient(760px 420px at 92% 2%,rgba(249,115,22,.05),transparent 58%);
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
h1,h2,h3,h4{line-height:1.25;color:var(--ink)}

.container{width:min(1200px,92%);margin:0 auto}
.wrap{width:min(1200px,92%);margin:0 auto}

/* ---------- 区块通用 ---------- */
.section{padding:100px 0;position:relative}
.section.alt{background:linear-gradient(180deg,#FBFCFE,var(--bg));border-top:1px solid var(--c-line-2);border-bottom:1px solid var(--c-line-2)}
.section-head{text-align:center;max-width:760px;margin:0 auto 62px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand);font-weight:700;letter-spacing:3px;font-size:12.5px;text-transform:uppercase;
  background:var(--brand-soft);border:1px solid #D5E3FB;
  padding:7px 16px;border-radius:999px;margin-bottom:20px;
}
.section-head .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.section-head h2{font-size:clamp(28px,3.4vw,40px);font-weight:800;margin-bottom:16px;letter-spacing:-.8px;line-height:1.22}
.section-head p{color:var(--ink-2);font-size:16.5px}

/* ---------- 顶栏导航 ---------- */
.header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;font-size:19px;color:var(--ink)}
.logo .mark{
  width:40px;height:40px;border-radius:11px;
  background:var(--grad);display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:19px;font-weight:800;
  box-shadow:0 6px 18px var(--brand-glow);
}
.logo img{height:58px;width:auto;display:block}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{font-size:15px;color:var(--ink-2);font-weight:600;position:relative;padding:8px 0;transition:color var(--ease)}
.nav-links a:hover,.nav-links a.active{color:var(--brand)}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2.5px;width:0;
  background:var(--grad);border-radius:2px;transition:width var(--ease);
}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-cta{
  background:var(--accent);color:#fff!important;padding:10px 22px;border-radius:999px;
  font-weight:700;font-size:15px;box-shadow:0 8px 20px rgba(249,115,22,.3);
  transition:transform var(--ease),box-shadow var(--ease);
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(249,115,22,.4)}
.menu-btn{display:none;background:none;border:0;font-size:24px;color:var(--ink);cursor:pointer}

/* 顶栏搜索图标 + 电话 */
.nav-ico{display:flex;align-items:center;color:var(--ink-2);transition:color var(--ease)}
.nav-ico:hover{color:var(--brand)}
.nav-tel{display:flex;align-items:center;gap:8px;font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.3px;transition:color var(--ease)}
.nav-tel:hover{color:var(--brand)}

/* ---------- Hero（无轮播静态版：浅色） ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(1000px 560px at 16% -10%,rgba(29,91,216,.10),transparent 60%),
    radial-gradient(820px 480px at 88% 0%,rgba(249,115,22,.06),transparent 55%),
    linear-gradient(180deg,#FDFEFF,var(--bg));
}
.hero::after{content:none}
.hero .wrap{position:relative;display:block;padding:104px 0 92px;z-index:2}
.hero-tagline{
  display:inline-block;font-size:14px;font-weight:700;color:var(--brand);
  letter-spacing:2.5px;margin-bottom:22px;text-transform:uppercase;
  background:var(--brand-soft);border:1px solid #D5E3FB;
  padding:7px 16px;border-radius:999px;
}
.hero h1{
  font-size:clamp(34px,5vw,56px);line-height:1.14;font-weight:800;
  margin-bottom:18px;letter-spacing:-1.2px;color:var(--ink);max-width:820px;
}
.hero h1 .hl{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:21px;font-weight:700;color:var(--brand);margin-bottom:18px}
.hero p.lead{font-size:16.5px;color:var(--ink-2);max-width:620px;margin-bottom:36px}
.hero .btns{display:flex;gap:16px;flex-wrap:wrap}

/* 按钮系统 */
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:15px 30px;border-radius:999px;
  font-weight:700;font-size:15px;cursor:pointer;border:0;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 12px 28px rgba(249,115,22,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(249,115,22,.4)}
.btn-blue{background:var(--grad);color:#fff;box-shadow:0 12px 28px rgba(29,91,216,.28)}
.btn-blue:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(29,91,216,.38)}
.btn-dark{background:var(--navy);color:#fff;box-shadow:0 12px 28px rgba(10,30,62,.28)}
.btn-dark:hover{transform:translateY(-2px);background:var(--navy-2);box-shadow:0 16px 34px rgba(10,30,62,.36)}
.btn-dark svg,.btn-blue svg{flex:none}
.btn-light{background:#fff;color:var(--brand-strong);box-shadow:0 12px 28px rgba(0,0,0,.22)}
.btn-light:hover{transform:translateY(-2px);background:#F0F6FF}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line-strong)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.btn-outline{background:transparent;color:var(--brand);border:1.5px solid rgba(29,91,216,.4)}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand)}

/* Hero 底部信任项 */
.hero-trust{display:flex;gap:34px;margin-top:50px;flex-wrap:wrap}
.ht-item{display:flex;align-items:center;gap:12px}
.ht-ic{
  width:44px;height:44px;border-radius:12px;background:var(--brand-soft);
  color:var(--brand);display:flex;align-items:center;justify-content:center;flex:none;
  border:1px solid #D5E3FB;
}
.ht-item b{display:block;font-size:15px;color:var(--ink);line-height:1.3}
.ht-item i{display:block;font-style:normal;font-size:12.5px;color:var(--ink-3);line-height:1.3;margin-top:2px}

/* ---------- 首页图片轮播（深色区，图片本身深蓝科技风） ---------- */
.hero-slider{position:relative;height:620px;overflow:hidden;background:var(--navy)}
.hero-slider .slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1s ease;z-index:1}
.hero-slider .slide.active{opacity:1;z-index:2}
.hero-slider .slide::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(7,16,34,.9) 0%,rgba(7,16,34,.68) 44%,rgba(7,16,34,.28) 72%,rgba(7,16,34,.45) 100%);
}
.hero-slider .slide::after{content:none}
.hero-slider .wrap{position:relative;height:100%;display:flex;align-items:center;z-index:3}
.hero-slider .slide-inner{max-width:820px}
.hero-slider .hero-tagline{
  color:#BFDBFE;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
  backdrop-filter:blur(6px);
}
.hero-slider h1{color:#fff;text-shadow:0 4px 30px rgba(0,0,0,.45)}
.hero-slider .hero-sub{color:#8FC1FF}
.slider-btn{
  position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:52px;height:52px;
  border-radius:50%;border:1px solid rgba(255,255,255,.26);background:rgba(255,255,255,.1);
  color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;
  backdrop-filter:blur(6px);transition:background var(--ease),border-color var(--ease);
}
.slider-btn:hover{background:rgba(29,91,216,.5);border-color:rgba(255,255,255,.5)}
.slider-btn.prev{left:28px}
.slider-btn.next{right:28px}
.slider-dots{position:absolute;bottom:28px;left:0;right:0;z-index:5;display:flex;gap:10px;justify-content:center}
.slider-dots .dot{width:10px;height:10px;border-radius:999px;border:0;background:rgba(255,255,255,.35);cursor:pointer;padding:0;transition:width var(--ease),background var(--ease)}
.slider-dots .dot.active{width:28px;background:#fff}

/* 数据带（深藏青，承接轮播形成顶部深色整体） */
.stats-band{background:var(--grad-navy);position:relative;overflow:hidden}
.stats-band::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 320px at 85% -30%,rgba(59,130,246,.35),transparent 60%)}
.stats-band .wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:20px;padding:56px 0;position:relative}
.stat-box{text-align:center;position:relative}
.stat-box:not(:last-child)::after{content:"";position:absolute;right:-10px;top:18%;height:64%;width:1px;background:rgba(255,255,255,.14)}
.stat-box .n{
  font-size:46px;font-weight:800;line-height:1;letter-spacing:-1px;color:#fff;
}
.stat-box .n em{font-style:normal}
.stat-box .t{color:rgba(255,255,255,.75);margin-top:12px;font-size:15px}

/* ---------- 卡片网格（业务/能力） ---------- */
.grid{display:grid;gap:26px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{
  background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);padding:36px;
  position:relative;overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad);opacity:0;transition:opacity var(--ease);
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#C9DAF8}
.card:hover::before{opacity:1}
.card .ic{
  width:58px;height:58px;border-radius:15px;background:var(--brand-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:22px;color:var(--brand);
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.card:hover .ic{background:var(--grad);color:#fff;transform:scale(1.05);box-shadow:0 8px 22px var(--brand-glow)}
.card h3{font-size:20px;margin-bottom:10px;font-weight:700}
.card p{color:var(--ink-2);font-size:15px}
.card .more{display:inline-flex;align-items:center;gap:6px;margin-top:18px;color:var(--brand);font-weight:700;font-size:14px;transition:gap var(--ease)}
.card .more:hover{gap:11px}

/* ---------- 关于 ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-grid h2{font-size:clamp(26px,3vw,34px);margin-bottom:18px;font-weight:800;letter-spacing:-.5px}
.about-grid p{color:var(--ink-2);margin-bottom:14px;font-size:15.5px}
.about-visual{
  position:relative;border-radius:var(--radius-lg);padding:44px;color:#fff;overflow:hidden;
  background:var(--grad-navy);
  box-shadow:var(--shadow);
}
.about-visual::before{content:"";position:absolute;inset:0;background:radial-gradient(560px 300px at 85% -10%,rgba(59,130,246,.4),transparent 60%)}
.about-visual::after{content:"";position:absolute;right:-50px;bottom:-50px;width:200px;height:200px;border-radius:50%;background:rgba(59,130,246,.16);filter:blur(2px)}
.about-visual .tag{display:inline-block;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.24);padding:7px 16px;border-radius:999px;font-size:13px;margin-bottom:22px;position:relative;color:#BFDBFE}
.about-visual ul{position:relative}
.about-visual li{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.12);align-items:center;font-size:15px;color:#EAF1FC}
.about-visual li:last-child{border-bottom:0}
.about-visual svg{flex:0 0 auto;color:#7EB3F8}

/* 使命 · 愿景 · 价值观 */
.mvv .section-head{margin-bottom:52px}
.mvv-duo{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-bottom:44px}
.mvv-card{
  position:relative;border-radius:var(--radius-lg);padding:48px 44px;color:#fff;overflow:hidden;
  box-shadow:var(--shadow);
}
.mvv-card::before{content:"";position:absolute;inset:0;background:radial-gradient(560px 300px at 85% -10%,rgba(59,130,246,.42),transparent 60%)}
.mvv-card::after{content:"";position:absolute;right:-56px;bottom:-60px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.08);filter:blur(2px)}
.mvv-mission{background:var(--grad)}
.mvv-vision{background:var(--grad-navy)}
.mvv-tag{
  display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);
  padding:6px 16px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:2px;
  margin-bottom:22px;position:relative;color:#EAF1FC;
}
.mvv-main{font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.4;margin-bottom:16px;position:relative;letter-spacing:-.4px}
.mvv-desc{color:rgba(255,255,255,.85);font-size:15.5px;line-height:1.9;position:relative}
.values-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.value-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 22px;box-shadow:var(--shadow-sm);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.value-item:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#C9DAF8}
.value-ic{
  display:inline-flex;width:42px;height:42px;border-radius:12px;background:var(--brand-soft);
  color:var(--brand);align-items:center;justify-content:center;margin-bottom:16px;
}
.value-item h3{font-size:17px;font-weight:700;margin-bottom:8px;color:var(--ink)}
.value-item p{font-size:13.5px;color:var(--ink-2);line-height:1.75}

/* 我们的承诺（专业技术 / 贴心服务 / 创业伙伴） */
.pillars{background:#EEF3FA}
.pillar-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.pillar{
  background:#fff;border-radius:var(--radius-lg);padding:38px 32px;box-shadow:var(--shadow-sm);
  border:1px solid var(--line);transition:transform var(--ease),box-shadow var(--ease);
}
.pillar:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.pillar-ic{
  display:inline-flex;width:60px;height:60px;border-radius:16px;background:var(--grad);color:#fff;
  align-items:center;justify-content:center;margin-bottom:20px;box-shadow:0 10px 24px var(--brand-glow);
}
.pillar h3{font-size:21px;font-weight:800;margin-bottom:20px;color:var(--ink)}
.pillar ul li{
  padding:14px 0;border-bottom:1px dashed var(--line);display:flex;flex-direction:column;gap:4px;
}
.pillar ul li:last-child{border-bottom:0;padding-bottom:0}
.pillar ul li b{font-size:15px;color:var(--ink);font-weight:700}
.pillar ul li span{font-size:13.5px;color:var(--ink-2);line-height:1.7}

/* 企业文化与理念 */
.culture-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:44px;margin-top:10px}
.cul-item img{width:100%;aspect-ratio:1/1.18;object-fit:cover;border-radius:14px;display:block;box-shadow:var(--shadow-sm);transition:transform var(--ease),box-shadow var(--ease)}
.cul-item:hover img{transform:translateY(-6px);box-shadow:var(--shadow)}
.cul-item h3{font-size:20px;font-weight:700;margin:18px 0 6px}
.cul-item p{color:var(--ink-2);font-size:14.5px}
.concept{background:#EEF3FA}
.concept-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:10px}
.con-item{background:#fff;border-radius:14px;padding:34px 28px;box-shadow:var(--shadow-sm);transition:transform var(--ease),box-shadow var(--ease)}
.con-item:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.con-ic{display:inline-flex;width:64px;height:64px;border-radius:16px;background:#EAF1FE;color:var(--brand);align-items:center;justify-content:center;margin-bottom:18px}
.con-item h3{font-size:18px;font-weight:700;margin-bottom:10px}
.con-item p{color:var(--ink-2);font-size:14px;line-height:1.8}

/* 时间轴 */
.timeline{margin-top:10px;border-left:2px solid #D5E3FB;padding-left:30px}
.timeline .item{position:relative;padding:0 0 28px}
.timeline .item::before{content:"";position:absolute;left:-37px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--brand);border:3px solid #D5E3FB;box-shadow:0 0 0 4px rgba(29,91,216,.1)}
.timeline .yr{font-weight:800;color:var(--brand);font-size:18px}
.timeline .desc{color:var(--ink-2)}

/* ---------- 案例 ---------- */
.case-card{
  background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  display:flex;flex-direction:column;height:100%;
}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#C9DAF8}
.case-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--grad-navy)}
.case-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.case-card:hover .thumb img{transform:scale(1.06)}
.case-card .thumb .cat{position:absolute;left:16px;top:16px;background:var(--accent);color:#fff;font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;box-shadow:0 4px 12px rgba(249,115,22,.35)}
.case-card .body{padding:26px 28px 30px;flex:1;display:flex;flex-direction:column}
.case-card .body h3{font-size:20px;margin-bottom:8px;font-weight:700;transition:color var(--ease)}
.case-card:hover .body h3{color:var(--brand)}
.case-card .body p{color:var(--ink-2);font-size:14px;flex:1;margin-bottom:14px}
.case-card .more{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:14px;transition:gap var(--ease)}
.case-card:hover .more{gap:11px}

/* 案例详情页（单列文章排版） */
.case-detail{max-width:840px}
.case-cover{width:100%;border-radius:16px;margin-bottom:30px;box-shadow:var(--shadow);display:block;border:1px solid var(--line)}
.case-meta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px}
.case-meta .meta-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:12px 18px;font-size:14.5px;color:var(--ink);line-height:1.5;box-shadow:var(--shadow-sm);
}
.case-meta .meta-item b{display:block;font-size:12px;color:var(--brand);font-weight:700;letter-spacing:1px;margin-bottom:3px}
.case-body{font-size:16px;line-height:1.95;color:var(--ink-2)}
.case-body h3{font-size:20px;font-weight:800;color:var(--ink);margin:30px 0 14px;padding-left:14px;border-left:3px solid var(--brand);line-height:1.4}
.case-body h3:first-child{margin-top:0}
.case-body p{margin-bottom:16px}
.case-body p:last-child{margin-bottom:0}
.case-body ul{padding-left:20px;margin-bottom:16px}
.case-body li{list-style:disc;margin-bottom:8px;color:var(--ink-2)}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  text-decoration:none;color:inherit;display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#C9DAF8}
.news-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft)}
.news-card .thumb img{width:100%;height:100%;object-fit:cover}
.news-card .body{padding:22px 24px;flex:1;display:flex;flex-direction:column;gap:9px}
.news-card .cat{display:inline-block;align-self:flex-start;font-size:12px;color:var(--brand);background:var(--brand-soft);padding:4px 11px;border-radius:999px;font-weight:600;border:1px solid #D5E3FB}
.news-card h3{font-size:17px;color:var(--ink);line-height:1.45;margin:0}
.news-card p{font-size:14px;color:var(--ink-2);margin:0;flex:1}
.news-card .meta{font-size:13px;color:var(--ink-3)}

/* 列表式新闻（左图右文横卡） */
.news{background:transparent}
.news-item{
  display:flex;gap:28px;align-items:stretch;
  background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:18px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.news-item:hover{box-shadow:var(--shadow);transform:translateY(-3px);border-color:#C9DAF8}
.news-item .thumb{
  flex:0 0 264px;aspect-ratio:16/10;border-radius:11px;overflow:hidden;
  background:var(--brand-soft);position:relative;
}
.news-item .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-item:hover .thumb img{transform:scale(1.05)}
.news-item .body{flex:1;display:flex;flex-direction:column;justify-content:center;min-width:0;padding:6px 8px}
.news-item .meta{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--ink-3);margin-bottom:10px}
.news-item .body h3{font-size:20px;margin-bottom:9px;font-weight:700;line-height:1.45;transition:color var(--ease)}
.news-item:hover .body h3{color:var(--brand)}
.news-item .body p{
  color:var(--ink-2);font-size:14.5px;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-item .more{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  color:var(--brand);font-weight:700;font-size:14px;transition:gap var(--ease);
}
.news-item:hover .more{gap:11px}
/* 无缩略图的条目：内容区加左侧蓝条平衡视觉 */
.news-item.no-thumb .body{padding-left:16px;border-left:3px solid var(--brand-soft)}

/* ---------- FAQ 常见问题 ---------- */
.faq{background:transparent}
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item[open]{border-color:#C9DAF8;box-shadow:var(--shadow)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:22px 26px;font-size:17px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .ico{flex:none;width:28px;height:28px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;transition:transform var(--ease),background var(--ease)}
.faq-item[open] summary .ico{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-item .ans{padding:0 26px 24px;color:var(--ink-2);font-size:15px;line-height:1.9}

/* ---------- 联系 ---------- */
.contact{
  background:linear-gradient(180deg,#FBFCFE,var(--bg));
  position:relative;overflow:hidden;
}
.contact::before{content:"";position:absolute;inset:0;background:radial-gradient(800px 400px at 88% -10%,rgba(29,91,216,.08),transparent 60%)}
.contact .wrap{position:relative}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px}
.contact-info h2{color:var(--ink);margin-bottom:24px;font-size:28px;font-weight:800}
.contact-info .ci{display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--line)}
.contact-info .ci:last-child{border-bottom:0}
.contact-info .ci .ic{width:50px;height:50px;border-radius:13px;background:var(--brand-soft);display:flex;align-items:center;justify-content:center;color:var(--brand);flex:none;border:1px solid #D5E3FB}
.contact-info .ci .lab{font-size:13px;color:var(--ink-3)}
.contact-info .ci .val{font-size:16px;font-weight:600;color:var(--ink)}
.form{
  background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:38px;
  box-shadow:var(--shadow);
}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form input,.form textarea{
  width:100%;padding:15px 17px;border-radius:11px;
  border:1px solid var(--line-strong);background:var(--surface-2);
  color:var(--ink);font-size:15px;font-family:inherit;margin-bottom:15px;
  transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.form input::placeholder,.form textarea::placeholder{color:var(--ink-3)}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(29,91,216,.1)}
.form textarea{resize:vertical;min-height:120px}
.form .note{font-size:13px;color:var(--ink-3);margin-top:8px}
.form .alert{background:#E9F9EF;border:1px solid #B5E5C8;color:#177A3E;padding:14px 16px;border-radius:11px;margin-bottom:14px;font-size:14px}
.form .alert.err{background:#FDECEC;border-color:#F5C2C2;color:#B42323}

/* ---------- 子页头部（深藏青，全站统一深色节奏） ---------- */
.banner{
  background:var(--grad-navy);
  color:#fff;padding:84px 0 76px;position:relative;overflow:hidden;
}
.banner::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 360px at 82% -20%,rgba(59,130,246,.4),transparent 60%),
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:auto,46px 46px,46px 46px;
}
.banner .wrap{position:relative}
.banner h1{font-size:clamp(30px,3.6vw,42px);font-weight:800;margin-bottom:12px;letter-spacing:-.8px;color:#fff}
.banner h1 .hl{background:linear-gradient(135deg,#7EB3F8,#BFDBFE);-webkit-background-clip:text;background-clip:text;color:transparent}
.banner p{color:rgba(255,255,255,.78);font-size:16px}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:16px}
.breadcrumb a:hover{color:#fff}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--grad);
  color:#fff;text-align:center;padding:88px 0;position:relative;overflow:hidden;
}
.cta-band::before{content:"";position:absolute;right:-80px;bottom:-90px;width:300px;height:300px;border-radius:50%;background:rgba(255,255,255,.1)}
.cta-band::after{content:"";position:absolute;left:-60px;top:-70px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.07)}
.cta-band h2{font-size:clamp(26px,3.2vw,38px);margin-bottom:16px;font-weight:800;position:relative;letter-spacing:-.5px;color:#fff}
.cta-band p{color:rgba(255,255,255,.88);margin-bottom:30px;font-size:16px;position:relative}
.cta-band .btn{position:relative}

/* ---------- 页脚 ---------- */
.footer{
  background:var(--navy);color:rgba(255,255,255,.72);padding:70px 0 30px;position:relative;
}
.footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer .logo{color:#fff;margin-bottom:16px}
.footer .logo img{filter:brightness(1.55) saturate(1.05)}
.footer p{font-size:14px;line-height:1.85}
.footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer ul li{padding:7px 0;font-size:14px}
.footer ul li a{transition:color var(--ease)}
.footer ul li a:hover{color:#7EB3F8}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:24px;text-align:center;font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- 响应式 ---------- */
@media(max-width:980px){
  .hero .wrap{padding:76px 0 66px}
  .hero h1{font-size:38px}
  .hero-trust{gap:22px}
  .about-grid,.contact-grid,.footer-grid{grid-template-columns:1fr}
  .grid-3,.grid-2{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:1fr 1fr}
  .stats-band .wrap{grid-template-columns:repeat(2,1fr);gap:26px}
  .stat-box::after{display:none}
  .nav-links{display:none}
  .menu-btn{display:block}
  .hero-slider{height:480px}
  .hero-slider h1{font-size:36px}
  .section-head h2{font-size:32px}
  .news-item{gap:20px;padding:18px}
  .news-item .thumb{flex:0 0 200px}
  .news-item .body h3{font-size:18px}
  .culture-grid,.concept-grid{gap:20px}
  .mvv-duo{grid-template-columns:1fr}
  .values-grid{grid-template-columns:repeat(3,1fr)}
  .pillar-grid{grid-template-columns:1fr}
}
@media(max-width:560px){
  .grid-3,.grid-2,.news-grid{grid-template-columns:1fr}
  .section{padding:64px 0}
  .section-head h2{font-size:28px}
  .form .row{grid-template-columns:1fr}
  .nav-tel span{display:none}
  .banner h1{font-size:32px}
  .logo img{height:46px}
  .nav{height:64px}
  .hero h1{font-size:29px;max-width:100%}
  .hero-sub{font-size:17px}
  .hero-tagline{font-size:12px;letter-spacing:1.5px}
  .hero-trust{gap:14px;margin-top:36px}
  .ht-ic{width:38px;height:38px}
  .hero-slider{height:420px}
  .hero-slider h1{font-size:28px;max-width:100%}
  .slider-btn{width:40px;height:40px}
  .slider-btn.prev{left:12px}
  .slider-btn.next{right:12px}
  /* 新闻列表移动端：上图下文 */
  .news-item{flex-direction:column;gap:14px;padding:16px}
  .news-item .thumb{flex:none;width:100%;aspect-ratio:16/9}
  .culture-grid{grid-template-columns:1fr;gap:30px}
  .concept-grid{grid-template-columns:1fr;gap:16px}
  .values-grid{grid-template-columns:1fr 1fr}
  .mvv-card{padding:36px 26px}
  .news-item.no-thumb .body{padding-left:0;border-left:0}
}

/* 移动端展开菜单 */
.mobile-menu{
  display:none;position:fixed;inset:76px 0 auto 0;
  background:#fff;box-shadow:var(--shadow);padding:18px 6%;
  flex-direction:column;gap:4px;z-index:99;border-top:1px solid var(--line);
}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:14px 8px;font-weight:600;color:var(--ink-2);border-bottom:1px solid var(--c-line-2)}
.mobile-menu a:last-child{border-bottom:0}

/* ---------- 滚动入场动画 ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.4,0,.2,1),transform .7s cubic-bezier(.4,0,.2,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}