/* =========================================================
   安讯奔官网 · 设计系统
   品牌色取自公司 PPT 模板：深海军蓝 #001038 / 主蓝 #184880
   辅助：亮蓝 #2563EB / 青蓝 #38BDF8(AI 感) / 金 #F8C000
   ========================================================= */

:root{
  --navy-950:#000B2E;
  --navy-900:#001038;
  --navy-800:#001A55;
  --navy-700:#0A2472;
  --brand:#184880;
  --blue:#2563EB;
  --blue-bright:#0047D0;
  --cyan:#38BDF8;
  --gold:#F8C000;
  --ink:#0F172A;
  --ink-2:#334155;
  --ink-3:#64748B;
  --line:#E2E8F0;
  --bg:#FFFFFF;
  --bg-soft:#F4F7FC;
  --bg-tint:#EEF3FB;
  --radius:14px;
  --radius-lg:20px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06),0 1px 3px rgba(15,23,42,.06);
  --shadow:0 4px 16px rgba(15,23,42,.08);
  --shadow-lg:0 18px 48px rgba(0,16,56,.14);
  --grad-brand:linear-gradient(135deg,#001038 0%,#0A2472 55%,#184880 100%);
  --grad-accent:linear-gradient(135deg,#2563EB 0%,#38BDF8 100%);
  --header-h:72px;
  --wrap:1200px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","微软雅黑","PingFang SC","Hiragino Sans GB","Noto Sans SC",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s}
a:hover{color:var(--blue)}
h1,h2,h3,h4{line-height:1.3;margin:0 0 .6em;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}

/* ---------- 图标 ---------- */
.ic{width:20px;height:20px;flex:0 0 auto;vertical-align:-.18em}
.ic-sm{width:16px;height:16px}
.ic-lg{width:28px;height:28px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  padding:11px 22px;border-radius:10px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .2s ease;
  font-family:inherit;line-height:1.4;white-space:nowrap;
}
.btn-primary{
  background:var(--grad-accent);color:#fff;
  box-shadow:0 6px 18px rgba(37,99,235,.28);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 10px 26px rgba(37,99,235,.36)}
.btn-ghost{border-color:rgba(255,255,255,.4);color:#fff;background:rgba(255,255,255,.06);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.7)}
.btn-outline{border-color:var(--line);color:var(--brand);background:#fff}
.btn-outline:hover{border-color:var(--blue);color:var(--blue);background:var(--bg-tint)}
.btn-sm{padding:8px 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(0,16,56,.88);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav-wrap{height:var(--header-h);display:flex;align-items:center;gap:14px;flex-wrap:nowrap}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-width:0}
.brand-logo{height:32px;width:auto;filter:drop-shadow(0 1px 3px rgba(0,0,0,.3))}
.brand-slogan{
  color:rgba(255,255,255,.62);font-size:11px;letter-spacing:.14em;
  border-left:1px solid rgba(255,255,255,.2);padding-left:10px;white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:3px;margin-left:auto;flex-wrap:nowrap;white-space:nowrap}
.main-nav > ul{display:flex;align-items:center;gap:1px;flex-wrap:nowrap}
.main-nav > ul > li{position:relative;flex:0 0 auto}
.main-nav > ul > li > a{
  display:flex;align-items:center;gap:4px;padding:9px 12px;
  color:rgba(255,255,255,.86);font-size:14.5px;font-weight:500;border-radius:8px;
  white-space:nowrap;
}
.main-nav > ul > li > a:hover,
.main-nav > ul > li.active > a{color:#fff;background:rgba(255,255,255,.1)}
.caret{font-size:9px;opacity:.7}
.nav-cta{margin-left:10px;padding:9px 16px !important;font-size:14px !important}

/* 下拉面板 */
.sub-panel{
  position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%) translateY(6px);
  background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);
  padding:20px;min-width:620px;opacity:0;visibility:hidden;
  transition:all .2s ease;border:1px solid var(--line);
}
.has-sub:hover .sub-panel,
.has-sub:focus-within .sub-panel{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.sub-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 26px;max-height:60vh;overflow:auto}
.sub-col .sub-head{
  display:flex;align-items:center;gap:8px;font-weight:700;color:var(--navy-800);
  font-size:14px;padding-bottom:8px;margin-bottom:8px;border-bottom:1px solid var(--line);
}
.sub-col .sub-head:hover{color:var(--blue)}
.sub-col ul li a{
  display:block;padding:5px 0 5px 26px;font-size:13.5px;color:var(--ink-2);
  border-radius:6px;position:relative;
}
.sub-col ul li a::before{
  content:"";position:absolute;left:8px;top:50%;width:5px;height:5px;border-radius:50%;
  background:var(--line);transform:translateY(-50%);transition:background .18s;
}
.sub-col ul li a:hover{color:var(--blue);background:var(--bg-tint)}
.sub-col ul li a:hover::before{background:var(--blue)}
.sub-all{
  display:flex;align-items:center;gap:6px;justify-content:center;margin-top:14px;padding-top:12px;
  border-top:1px solid var(--line);font-size:13.5px;font-weight:600;color:var(--brand);
}
.sub-all:hover{color:var(--blue)}

/* 分类原站图标 */
.cat-ico{width:20px;height:20px;object-fit:contain;flex:0 0 auto}
.sub-col .sub-head .cat-ico{margin-right:2px}
.cat-kicker{display:inline-flex;align-items:center;gap:9px;color:var(--brand)}
.cat-kicker .ic{width:20px;height:20px;color:var(--blue)}
.chip .ic{width:16px;height:16px;color:var(--blue)}
.case-ico{display:inline-flex;width:42px;height:42px;border-radius:12px;background:var(--bg-tint);color:var(--blue);align-items:center;justify-content:center;margin-bottom:12px}
.case-ico .ic{width:24px;height:24px}

.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.hotline{display:flex;align-items:center;gap:7px;color:#fff;font-size:14px;font-weight:600;opacity:.9}
.hotline:hover{opacity:1;color:#fff}
.nav-toggle{display:none;width:40px;height:40px;border:0;background:transparent;cursor:pointer;padding:9px 8px}
.nav-toggle span{display:block;height:2px;background:#fff;border-radius:2px;margin:5px 0;transition:.25s}

/* ---------- 首页 Hero ---------- */
.hero{
  position:relative;overflow:hidden;background:var(--grad-brand);
  color:#fff;padding:110px 0 130px;isolation:isolate;
}
#heroCanvas{position:absolute;inset:0;width:100%;height:100%;z-index:-2;opacity:.55}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(900px 420px at 15% 20%,rgba(56,189,248,.16),transparent 60%),
    radial-gradient(700px 380px at 85% 75%,rgba(37,99,235,.2),transparent 60%),
    linear-gradient(180deg,transparent 55%,rgba(0,11,46,.55) 100%);
}
.hero-grid-lines{
  position:absolute;inset:0;z-index:-1;pointer-events:none;opacity:.14;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 75% 70% at 50% 40%,#000 20%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 75% 70% at 50% 40%,#000 20%,transparent 75%);
}
.hero-inner{max-width:900px;margin:0 auto;text-align:center;position:relative}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.3);
  color:var(--cyan);font-size:13px;font-weight:600;letter-spacing:.04em;margin-bottom:26px;
}
.hero h1{
  font-size:clamp(30px,5.2vw,54px);line-height:1.22;margin-bottom:22px;letter-spacing:-.02em;
  background:linear-gradient(180deg,#fff 40%,#BFD6F5 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero p.lead{
  font-size:clamp(15px,2vw,19px);color:rgba(255,255,255,.76);
  max-width:680px;margin:0 auto 36px;
}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-stats{
  display:flex;justify-content:center;gap:clamp(24px,6vw,72px);margin-top:64px;
  padding-top:34px;border-top:1px solid rgba(255,255,255,.12);flex-wrap:wrap;
}
.hero-stat b{
  display:block;font-size:clamp(26px,4vw,38px);font-weight:800;letter-spacing:-.02em;
  background:linear-gradient(135deg,#fff,#8CC5F8);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.62);letter-spacing:.06em}

/* 轮播 */
.carousel{position:relative}
.carousel-track{display:block}
.slide-item{
  display:none;animation:fadeUp .5s ease both;
}
.slide-item.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.carousel-dots{display:flex;gap:9px;justify-content:center;margin-top:30px}
.carousel-dots button{
  width:26px;height:4px;border:0;border-radius:3px;background:rgba(255,255,255,.28);
  cursor:pointer;transition:.2s;padding:0;
}
.carousel-dots button.active{background:var(--cyan);width:38px}

/* ---------- 通用 Section ---------- */
.section{padding:76px 0}
.section.tint{background:var(--bg-soft)}
.section.dark{background:var(--grad-brand);color:#fff}
.section-head{text-align:center;max-width:720px;margin:0 auto 48px}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--blue);letter-spacing:.16em;text-transform:uppercase;margin-bottom:12px;
}
.section-head .kicker::before,.section-head .kicker::after{
  content:"";width:22px;height:2px;background:var(--grad-accent);border-radius:2px;
}
.section-head h2{font-size:clamp(24px,3.4vw,34px);color:var(--navy-800)}
.section.dark .section-head h2{color:#fff}
.section-head p{color:var(--ink-3);font-size:15.5px;margin:0}
.section.dark .section-head p{color:rgba(255,255,255,.72)}

/* ---------- 产品矩阵 ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.prod-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 26px;overflow:hidden;transition:all .25s ease;display:block;
}
.prod-card::before{
  content:"";position:absolute;inset:0 0 auto;height:3px;background:var(--grad-accent);
  transform:scaleX(0);transform-origin:left;transition:transform .3s ease;
}
.prod-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:transparent}
.prod-card:hover::before{transform:scaleX(1)}
.prod-ico{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--bg-tint),#E0EDFF);color:var(--brand);margin-bottom:18px;
  transition:.25s;
}
.prod-card:hover .prod-ico{background:var(--grad-accent);color:#fff;transform:scale(1.06) rotate(-3deg)}
.prod-ico .ic{width:26px;height:26px}
.prod-card h3{font-size:17px;color:var(--navy-800);margin-bottom:8px}
.prod-card h3 small{display:block;font-size:12px;color:var(--ink-3);font-weight:500;letter-spacing:.04em;margin-top:3px}
.prod-card p{font-size:14px;color:var(--ink-3);margin:0;line-height:1.65}
.prod-card .more{
  display:inline-flex;align-items:center;gap:5px;margin-top:16px;font-size:13.5px;
  font-weight:600;color:var(--blue);
}
.prod-card .more .ic{transition:transform .2s}
.prod-card:hover .more .ic{transform:translateX(4px)}
.cat-badge{
  display:inline-block;font-size:11.5px;padding:3px 10px;border-radius:999px;margin-bottom:12px;
  background:var(--bg-tint);color:var(--brand);font-weight:600;letter-spacing:.03em;
}

/* ---------- 解决方案 ---------- */
.sol-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.sol-card{
  display:flex;gap:20px;align-items:flex-start;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-lg);padding:26px;
  transition:.25s;backdrop-filter:blur(6px);
}
.sol-card:hover{background:rgba(255,255,255,.1);border-color:rgba(56,189,248,.4);transform:translateY(-3px)}
.sol-ico{
  width:46px;height:46px;border-radius:12px;flex:0 0 auto;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(56,189,248,.22),rgba(37,99,235,.22));color:var(--cyan);
  overflow:hidden;
}
.sol-ico img{width:100%;height:100%;object-fit:cover}
.sol-card h3{font-size:16.5px;color:#fff;margin-bottom:6px}
.sol-card p{font-size:13.8px;color:rgba(255,255,255,.66);margin:0;line-height:1.65}

/* ---------- 能力/特性 ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;transition:.25s}
.feat-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.feat-num{
  font-size:13px;font-weight:800;color:var(--blue);letter-spacing:.1em;margin-bottom:10px;
  display:block;
}
.feat-card h3{font-size:17px;color:var(--navy-800)}
.feat-card p{font-size:14.2px;color:var(--ink-3);margin:0}

/* ---------- AI 面板（亮点） ---------- */
.ai-panel{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:var(--grad-brand);color:#fff;padding:44px 40px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center;
}
.ai-panel::before{
  content:"";position:absolute;inset:0;opacity:.16;
  background-image:linear-gradient(rgba(255,255,255,.4) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.4) 1px,transparent 1px);
  background-size:40px 40px;
  mask-image:radial-gradient(ellipse at 80% 50%,#000,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 80% 50%,#000,transparent 70%);
}
.ai-panel h2{font-size:clamp(22px,2.8vw,30px);position:relative}
.ai-panel p{color:rgba(255,255,255,.74);position:relative}
.ai-chips{display:flex;flex-wrap:wrap;gap:10px;position:relative;margin-top:18px}
.ai-chip{
  font-size:13px;padding:7px 14px;border-radius:999px;
  background:rgba(56,189,248,.14);border:1px solid rgba(56,189,248,.32);color:#BFE4FB;font-weight:600;
}
.ai-visual{position:relative;min-height:200px}

/* ---------- 视频 ---------- */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.video-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;transition:.25s;display:block;
}
.video-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.video-thumb{
  position:relative;aspect-ratio:16/9;background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.video-thumb .play{
  width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.4);backdrop-filter:blur(4px);
  transition:.25s;
}
.video-card:hover .play{background:var(--blue);border-color:var(--blue);transform:scale(1.08)}
.video-thumb .play .ic{width:22px;height:22px;margin-left:2px}
.video-thumb .vt-label{
  position:absolute;top:14px;left:14px;font-size:12px;padding:4px 10px;border-radius:6px;
  background:rgba(0,11,46,.5);backdrop-filter:blur(4px);font-weight:600;
}
.video-embed video{
  width:100%;display:block;background:#000;aspect-ratio:16/9;
  border-radius:var(--radius-lg) var(--radius-lg) 0 0;
}
.vt-tag{
  display:inline-block;font-size:12px;color:var(--blue);background:var(--bg-tint);
  padding:3px 11px;border-radius:999px;margin-bottom:8px;font-weight:600;
}
.video-body{padding:20px 22px 24px}
.video-body h3{font-size:15.5px;color:var(--navy-800);margin-bottom:8px}
.video-body p{font-size:13.5px;color:var(--ink-3);margin:0}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;
  transition:.25s;position:relative;overflow:hidden;
}
.case-card::after{
  content:"";position:absolute;right:-30px;bottom:-30px;width:100px;height:100px;border-radius:50%;
  background:radial-gradient(circle,rgba(37,99,235,.08),transparent 70%);
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.case-card .industry{font-size:12px;font-weight:700;color:var(--blue);letter-spacing:.08em;margin-bottom:10px}
.case-card h3{font-size:16.5px;color:var(--navy-800)}
.case-card p{font-size:13.6px;color:var(--ink-3);margin:0}

/* ---------- 解决方案卡片配图 ---------- */
.sol-tile{padding:0 !important;overflow:hidden;display:flex;flex-direction:column}
.sol-cover{
  width:100%;aspect-ratio:16/9;background:linear-gradient(135deg,#eef3fb,#e2ecfa);
  display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.sol-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.sol-tile:hover .sol-cover img{transform:scale(1.05)}
.sol-cover-ph{color:var(--blue);opacity:.55}
.sol-cover-ph .ic{width:44px;height:44px}
.sol-card-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.detail-cover{margin:0 0 22px;border-radius:var(--radius);overflow:hidden;background:#eef3fb}
.detail-cover img{width:100%;height:auto;display:block}

/* 方案卡片：演示视频角标 */
.sol-cover{position:relative}
.sol-play{
  position:absolute;right:12px;bottom:12px;width:38px;height:38px;border-radius:50%;
  background:rgba(0,24,72,.72);color:#fff;display:flex;align-items:center;justify-content:center;
  backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.28);transition:background .25s,transform .25s;
}
.sol-play .ic{width:15px;height:15px;margin-left:2px}
.sol-tile:hover .sol-play{background:var(--blue);transform:scale(1.08)}

/* 方案详情：演示视频 */
.sol-video{margin:34px 0 0;padding-top:26px;border-top:1px solid var(--line)}
.sol-video-title{
  display:flex;align-items:center;gap:9px;font-size:19px;color:var(--navy);margin:0 0 16px;
}
.sol-video-title .ic{width:20px;height:20px;color:var(--blue)}
.sol-video-box{
  border-radius:var(--radius);overflow:hidden;background:#000;
  box-shadow:0 12px 34px rgba(0,24,72,.16);line-height:0;
}
.sol-video-box video,.sol-video-box iframe{width:100%;height:auto;aspect-ratio:16/9;display:block;border:0}

/* 相关视频 */
.rel-video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.rel-video{display:block;text-decoration:none;color:inherit}
.rel-video-thumb{
  position:relative;display:block;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:#eef3fb;
}
.rel-video-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease}
.rel-video:hover .rel-video-thumb img{transform:scale(1.06)}
.play-badge{
  position:absolute;inset:0;margin:auto;width:42px;height:42px;border-radius:50%;
  background:rgba(0,24,72,.6);color:#fff;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.3);
}
.play-badge .ic{width:16px;height:16px;margin-left:2px}
.rel-video-name{display:block;margin-top:9px;font-size:13.8px;color:var(--navy);line-height:1.5}
.rel-video:hover .rel-video-name{color:var(--blue)}

@media (max-width:860px){
  .rel-video-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
  .rel-video-grid{grid-template-columns:1fr}
  .sol-play{width:32px;height:32px;right:9px;bottom:9px}
}

/* ---------- 客户案例（Logo + 名称，简洁版） ---------- */
.client-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.client-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px 16px 18px;text-align:center;transition:.25s;
  display:flex;flex-direction:column;align-items:center;gap:14px;
}
.client-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(37,99,235,.28)}
.client-logo{
  width:100%;height:70px;display:flex;align-items:center;justify-content:center;
}
.client-logo img{
  max-width:100%;max-height:70px;width:auto;height:auto;object-fit:contain;
  filter:grayscale(100%);opacity:.72;transition:.3s;
}
.client-card:hover .client-logo img{filter:grayscale(0);opacity:1}
.client-fallback{
  width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--navy-700),var(--blue));color:#fff;font-size:19px;font-weight:700;
}
.client-name{font-size:14.5px;color:var(--navy-800);font-weight:600;line-height:1.4}

/* 案例中心：行业分组 + 锚点 */
.case-anchors{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.case-anchors .chip{display:inline-flex;align-items:center;gap:6px;text-decoration:none}
.chip-n{
  display:inline-block;min-width:19px;padding:0 5px;border-radius:9px;
  background:rgba(37,99,235,.12);color:var(--blue);font-size:12px;font-weight:700;line-height:19px;text-align:center;
}
.case-group{margin-bottom:44px;scroll-margin-top:96px}
.case-group:last-child{margin-bottom:0}
.case-group-title{
  display:flex;align-items:baseline;gap:10px;margin:0 0 18px;
  font-size:19px;font-weight:700;color:var(--navy-800);
  padding-left:12px;border-left:4px solid var(--blue);
}
.case-group-title span{font-size:13px;font-weight:500;color:var(--ink-3)}

/* ---------- 资质荣誉 ---------- */
.honor-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.honor-item{
  display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);padding:20px 14px;transition:.25s;
}
.honor-item:hover{background:rgba(255,255,255,.12);transform:translateY(-3px)}
.honor-item .ic{width:26px;height:26px;color:var(--gold)}
.honor-item span{font-size:13px;color:rgba(255,255,255,.86);line-height:1.5}

/* ---------- 评价 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;position:relative}
.quote-card .ic{color:var(--bg-tint);width:34px;height:34px;position:absolute;top:20px;right:24px}
.quote-card blockquote{margin:0;font-size:14.5px;color:var(--ink-2);position:relative;z-index:1}
.quote-card cite{display:flex;align-items:center;gap:10px;margin-top:18px;font-style:normal;font-size:13.5px;font-weight:700;color:var(--navy-800)}
.avatar{
  width:36px;height:36px;border-radius:50%;background:var(--grad-accent);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex:0 0 auto;
}
.quote-card cite small{display:block;font-weight:500;color:var(--ink-3)}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;
  transition:.25s;display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.news-meta{display:flex;gap:10px;align-items:center;font-size:12.5px;color:var(--ink-3);margin-bottom:14px}
.news-meta .tag{background:var(--bg-tint);color:var(--brand);padding:3px 10px;border-radius:999px;font-weight:600}
.news-card h3{font-size:16px;color:var(--navy-800);margin-bottom:10px}
.news-card p{font-size:13.8px;color:var(--ink-3);margin:0 0 16px;flex:1}
.news-card .more{font-size:13.5px;font-weight:600;color:var(--blue);display:inline-flex;gap:5px;align-items:center;margin-top:auto}

/* ---------- 页头（内页） ---------- */
.page-hero{
  background:var(--grad-brand);color:#fff;padding:66px 0 60px;position:relative;overflow:hidden;isolation:isolate;
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;opacity:.12;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 70% 80% at 30% 30%,#000,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 70% 80% at 30% 30%,#000,transparent 75%);
}
.page-hero::after{
  content:"";position:absolute;right:-8%;top:-30%;width:520px;height:520px;z-index:-1;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.18),transparent 65%);
}
.breadcrumb{display:flex;gap:8px;align-items:center;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:14px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:#fff}
.page-hero h1{font-size:clamp(26px,4vw,40px);margin-bottom:12px;letter-spacing:-.02em}
.page-hero .sub{color:rgba(255,255,255,.72);font-size:15.5px;max-width:760px;margin:0}

/* 分类过滤 chips */
.chip-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.chip{
  padding:7px 18px;border-radius:999px;font-size:14px;font-weight:600;
  color:rgba(255,255,255,.8);border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);
  transition:.2s;
}
.chip:hover{color:#fff;border-color:rgba(255,255,255,.5)}
.chip.active{background:#fff;color:var(--navy-800);border-color:#fff}

/* ---------- 详情页 ---------- */
.detail-layout{display:grid;grid-template-columns:1fr 300px;gap:36px;align-items:start}
.article{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:40px 44px}
.article h1{font-size:clamp(24px,3.2vw,32px);color:var(--navy-800);margin-bottom:8px}
.article .art-sub{font-size:14px;color:var(--ink-3);margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.article .lead{font-size:16.5px;color:var(--ink-2);background:var(--bg-soft);border-left:3px solid var(--blue);padding:16px 20px;border-radius:0 10px 10px 0;margin-bottom:26px}
.article h3{font-size:19px;color:var(--navy-800);margin:30px 0 12px;position:relative;padding-left:14px}
.article h3::before{content:"";position:absolute;left:0;top:.3em;width:4px;height:1em;border-radius:2px;background:var(--grad-accent)}
.article p{color:var(--ink-2);font-size:15.3px}
.article ul{list-style:none;margin:0 0 1em}
.article ul li{position:relative;padding-left:24px;margin-bottom:9px;color:var(--ink-2);font-size:15px}
.article ul li::before{content:"";position:absolute;left:2px;top:.62em;width:7px;height:7px;border-radius:50%;background:var(--grad-accent)}
.article b,.article strong{color:var(--navy-800)}

/* ---------- 产品详情 · 产品下载 ---------- */
.pd-downloads{margin-top:38px;padding-top:30px;border-top:1px solid var(--line)}
.pd-dl-head{margin-bottom:20px}
.pd-dl-title{display:flex;align-items:center;gap:9px;font-size:20px;font-weight:700;color:var(--navy-900);margin:0 0 6px}
.pd-dl-title .ic{color:var(--blue)}
.pd-dl-sub{margin:0;font-size:13.5px;color:var(--ink-3);line-height:1.7}

.pd-dl-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.pd-dl-card{
  display:flex;flex-direction:column;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.pd-dl-card:hover{border-color:#C7D7F0;box-shadow:var(--shadow);transform:translateY(-2px)}

.pd-dl-icon{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--bg-tint);color:var(--brand);flex:none;
}
.pd-dl-icon svg{width:24px;height:24px}
.pd-dl-android{background:#E8F6EC;color:#16A34A}
.pd-dl-ios{background:#EEF2F7;color:#334155}
.pd-dl-windows{background:#E9F2FE;color:#0078D4}
.pd-dl-mac{background:#F1F0FE;color:#6D5BD0}
.pd-dl-other{background:var(--bg-tint);color:var(--brand)}

.pd-dl-body{flex:1}
.pd-dl-name{margin:0 0 8px;font-size:16px;font-weight:700;color:var(--navy-900);line-height:1.4}
.pd-dl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:7px;margin-bottom:9px}
.pd-dl-tag{
  font-size:12px;font-weight:700;color:#fff;background:var(--grad-accent);
  padding:2px 9px;border-radius:20px;letter-spacing:.2px;
}
.pd-dl-plat,.pd-dl-size{font-size:12.5px;color:var(--ink-3)}
.pd-dl-plat{position:relative;padding-left:9px}
.pd-dl-plat::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:3px;border-radius:50%;background:var(--ink-3)}
.pd-dl-desc{margin:0;font-size:13px;color:var(--ink-2);line-height:1.7}

.pd-dl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  height:40px;padding:0 18px;border-radius:10px;
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;text-decoration:none;
  transition:background .2s ease,box-shadow .2s ease;
}
.pd-dl-btn svg{width:17px;height:17px}
.pd-dl-btn:hover{background:var(--blue-bright);color:#fff;box-shadow:0 6px 18px rgba(24,72,128,.24)}
.pd-dl-btn.is-disabled{background:var(--bg-tint);color:var(--brand);box-shadow:none}
.pd-dl-btn.is-disabled:hover{background:#E1E9F7}

@media (max-width:640px){
  .pd-dl-grid{grid-template-columns:1fr}
  .pd-dl-title{font-size:18px}
}

/* 隐私声明等单页：正文层级 */
.article h2{
  font-size:20px;color:var(--navy-800);margin:34px 0 14px;
  padding-left:14px;border-left:4px solid var(--blue);line-height:1.4;
}
.article h2:first-child{margin-top:0}
.article a{color:var(--blue);text-decoration:underline}
.article a:hover{color:var(--navy-700)}
.privacy-body{max-width:920px;margin:0 auto}
.privacy-updated{
  max-width:920px;margin:20px auto 0;text-align:right;
  font-size:13.5px;color:var(--ink-3);
}
.privacy-body .privacy-updated{
  margin:34px 0 0;padding-top:18px;border-top:1px solid var(--line);text-align:left;
}
@media (max-width:768px){
  .article{padding:26px 22px}
  .article h2{font-size:18px;margin:26px 0 12px}
}

.side-card{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;margin-bottom:20px}
.side-card h4{font-size:15px;color:var(--navy-800);margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--navy-800)}
.side-list li{margin-bottom:10px}
.side-list a{display:block;font-size:14px;color:var(--ink-2);padding:8px 12px;border-radius:8px;background:#fff;border:1px solid var(--line)}
.side-list a:hover{color:var(--blue);border-color:var(--blue);background:var(--bg-tint)}
.contact-mini{font-size:14px;color:var(--ink-2)}
.contact-mini p{display:flex;gap:9px;align-items:flex-start;margin-bottom:12px}
.contact-mini .ic{color:var(--blue);margin-top:3px}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}
.contact-info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px}
.contact-row{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--line)}
.contact-row:last-of-type{border-bottom:0}
.contact-row .c-ico{
  width:44px;height:44px;border-radius:12px;flex:0 0 auto;display:flex;align-items:center;justify-content:center;
  background:var(--bg-tint);color:var(--brand);
}
.contact-row b{display:block;font-size:14px;color:var(--navy-800);margin-bottom:3px}
.contact-row span{font-size:14.5px;color:var(--ink-2)}
.contact-row a{font-weight:600}

.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px;box-shadow:var(--shadow-sm)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:13.5px;font-weight:600;color:var(--ink-2)}
.field label .req{color:#DC2626}
.field input,.field textarea,.field select{
  font-family:inherit;font-size:14.5px;padding:11px 14px;border:1px solid var(--line);
  border-radius:10px;background:var(--bg-soft);color:var(--ink);transition:.18s;width:100%;
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:0;border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(37,99,235,.12);
}
.field textarea{min-height:120px;resize:vertical}
.hp-field{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}
.form-msg{margin-top:14px;padding:12px 16px;border-radius:10px;font-size:14px;display:none}
.form-msg.ok{display:block;background:#ECFDF5;color:#065F46;border:1px solid #A7F3D0}
.form-msg.err{display:block;background:#FEF2F2;color:#991B1B;border:1px solid #FECACA}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--grad-brand);color:#fff;border-radius:var(--radius-lg);
  padding:44px 46px;display:flex;align-items:center;justify-content:space-between;gap:26px;
  position:relative;overflow:hidden;isolation:isolate;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;z-index:-1;opacity:.14;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse at 20% 50%,#000,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 20% 50%,#000,transparent 70%);
}
.cta-band h2{font-size:clamp(20px,2.6vw,28px);margin-bottom:8px}
.cta-band p{color:rgba(255,255,255,.72);margin:0}
.cta-band .actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 搜索 ---------- */
.search-box{display:flex;gap:10px;max-width:560px;margin:26px auto 0}
.search-box input{
  flex:1;font-family:inherit;font-size:15px;padding:13px 18px;border-radius:12px;
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.1);color:#fff;
}
.search-box input::placeholder{color:rgba(255,255,255,.5)}
.search-box input:focus{outline:0;border-color:var(--cyan);background:rgba(255,255,255,.16)}
.search-box button{
  padding:0 22px;border-radius:12px;border:0;background:var(--grad-accent);color:#fff;
  font-size:15px;font-weight:600;cursor:pointer;
}
.result-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;margin-bottom:14px;transition:.2s}
.result-item:hover{border-color:var(--blue);box-shadow:var(--shadow-sm)}
.result-item h3{font-size:16.5px;margin-bottom:6px}
.result-item p{font-size:14px;color:var(--ink-3);margin:0 0 8px}
.result-item .kind{font-size:12px;font-weight:700;color:var(--blue);letter-spacing:.06em}

/* ---------- 分页 ---------- */
.pager{display:flex;gap:8px;justify-content:center;margin-top:40px;flex-wrap:wrap}
.pager a,.pager span{
  min-width:40px;height:40px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--ink-2);
}
.pager a:hover{border-color:var(--blue);color:var(--blue)}
.pager .cur{background:var(--navy-800);color:#fff;border-color:var(--navy-800)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--navy-950);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1.5fr;gap:32px;padding-bottom:44px}
.foot-logo{height:30px;width:auto;margin-bottom:14px}
.foot-slogan{color:var(--cyan);font-size:13px;letter-spacing:.12em;margin-bottom:12px}
.foot-desc{font-size:13.4px;line-height:1.75;color:rgba(255,255,255,.5)}
.foot-col h4{color:#fff;font-size:14.5px;margin-bottom:16px;letter-spacing:.04em}
.foot-col ul li{margin-bottom:10px}
.foot-col ul a{color:rgba(255,255,255,.62);font-size:13.8px}
.foot-col ul a:hover{color:#fff}
.foot-contact p{display:flex;gap:9px;align-items:flex-start;font-size:13.6px;margin-bottom:12px}
.foot-contact .ic{color:var(--cyan);margin-top:3px}
.foot-contact a{color:#fff;font-weight:600}
.foot-cities{color:rgba(255,255,255,.45);font-size:12.5px;letter-spacing:.06em}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.09);padding:20px 0;display:flex;
  justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.8px;color:rgba(255,255,255,.45);
}
.foot-bottom p{margin:0}
.foot-links{display:flex;gap:10px;align-items:center}
.foot-links span{opacity:.4}
.foot-links a{color:rgba(255,255,255,.55)}
.foot-links a:hover{color:#fff}

/* 返回顶部 */
.back-top{
  position:fixed;right:24px;bottom:88px;width:44px;height:44px;border-radius:12px;z-index:60;
  background:var(--navy-800);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s;
}
.back-top .ic{transform:rotate(-90deg)}
.back-top.show{opacity:1;visibility:visible;transform:none}
.back-top:hover{background:var(--blue);color:#fff}

/* 移动端悬浮咨询条 */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  background:rgba(0,16,56,.96);backdrop-filter:blur(10px);
  border-top:1px solid rgba(255,255,255,.1);
  padding-bottom:env(safe-area-inset-bottom);
}
.mc-item{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:11px 0;color:rgba(255,255,255,.82);font-size:12px;
}
.mc-item .ic{width:19px;height:19px}
.mobile-cta .mc-primary{color:#fff;background:linear-gradient(135deg,var(--blue),var(--cyan));font-weight:700}

/* ---------- 错误页 ---------- */
.error-page{text-align:center;padding:110px 20px}
.error-code{
  font-size:clamp(64px,14vw,120px);font-weight:800;letter-spacing:-.04em;line-height:1;
  background:var(--grad-accent);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .brand-slogan{display:none}
  .hotline span{display:none}
}
@media (max-width:1080px){
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .honor-grid{grid-template-columns:repeat(3,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr 1fr;gap:28px}
  .detail-layout{grid-template-columns:1fr}
  .ai-panel{grid-template-columns:1fr}
  .ai-visual{display:none}
}
@media (max-width:860px){
  :root{--header-h:64px}
  .brand-slogan{display:none}
  .hotline span{display:none}
  .nav-toggle{display:block}
  .main-nav{
    position:fixed;top:var(--header-h);left:0;right:0;bottom:0;
    background:var(--navy-950);flex-direction:column;align-items:stretch;
    padding:18px 20px 90px;overflow:auto;
    transform:translateX(100%);transition:transform .3s ease;z-index:99;
  }
  .main-nav.open{transform:none}
  .main-nav > ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav > ul > li{border-bottom:1px solid rgba(255,255,255,.08)}
  .main-nav > ul > li > a{padding:16px 4px;font-size:16.5px;justify-content:space-between;border-radius:0}
  .sub-panel{
    position:static;transform:none;opacity:1;visibility:visible;
    box-shadow:none;background:transparent;border:0;padding:0 0 14px;min-width:0;display:none;
  }
  .has-sub.open .sub-panel{display:block}
  .sub-grid{grid-template-columns:1fr;gap:12px;max-height:none}
  .sub-col .sub-head{color:var(--cyan)}
  .sub-col ul li a{color:rgba(255,255,255,.72);padding-left:24px}
  .sub-col ul li a::before{background:rgba(255,255,255,.25)}
  .sub-all{color:var(--cyan)}
  .nav-cta{margin:16px 0 0;justify-content:center}
  body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  body.nav-open .nav-toggle span:nth-child(2){opacity:0}
  body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

  .mobile-cta{display:flex}
  .back-top{bottom:78px;right:16px}
  body{padding-bottom:56px}

  .hero{padding:74px 0 92px}
  .hero-stats{gap:20px;margin-top:44px}
  .hero-stat{flex:1 1 38%}
  .section{padding:56px 0}
  .sol-list,.feat-grid,.video-grid,.case-grid,.news-grid,.quote-grid{grid-template-columns:1fr}
  .client-grid{grid-template-columns:repeat(3,1fr)}
  .contact-grid,.form-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .article{padding:26px 22px}
  .cta-band{padding:32px 26px}
  .foot-bottom{justify-content:center;text-align:center}
}
@media (max-width:560px){
  .prod-grid{grid-template-columns:1fr}
  .honor-grid{grid-template-columns:repeat(2,1fr)}
  .client-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr}
  .hero-stat{flex:1 1 44%}
  .chip{padding:6px 14px;font-size:13px}
}

/* 动画 */
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 产品卡片：架构示意图 ---------- */
.prod-cover{background:linear-gradient(135deg,#f4f8fd,#e8f0fb)}
.prod-cover img{object-fit:contain;padding:14px;background:#fff}
.sol-tile:hover .prod-cover img{transform:scale(1.03)}
.sol-card-body h3 small{
  display:block;font-size:12px;color:var(--ink-3);font-weight:500;letter-spacing:.04em;margin-top:3px;
}
/* 产品详情：架构图说明 */
.detail-cover figcaption{
  padding:9px 14px;font-size:12.5px;color:var(--ink-3);background:#f7fafd;
  border-top:1px solid var(--line);text-align:center;letter-spacing:.04em;
}