/* ============================================================
   MAGICVIEW · 深色沉浸科技风门户站样式
   ============================================================ */
:root{
  --bg:#060911;
  --bg-2:#0a0f1c;
  --panel:rgba(17,24,42,.72);
  --panel-solid:#111828;
  --line:rgba(140,170,225,.14);
  --line-strong:rgba(120,200,255,.34);
  --txt:#eaf0fb;
  --muted:#94a3bd;
  --dim:#6b7893;
  --cyan:#3ee0f0;
  --violet:#8b6cff;
  --pink:#ff5fc8;
  --grad:linear-gradient(100deg,#3ee0f0 0%,#8b6cff 52%,#ff5fc8 100%);
  --grad-soft:linear-gradient(120deg,rgba(62,224,240,.16),rgba(139,108,255,.16) 55%,rgba(255,95,200,.14));
  --shadow:0 24px 70px rgba(0,0,0,.5);
  --r:18px;
  --maxw:1240px;
  --nav-h:74px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;line-height:1.7;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(900px 620px at 12% -8%,rgba(62,224,240,.13),transparent 65%),
    radial-gradient(820px 640px at 92% 8%,rgba(139,108,255,.15),transparent 62%),
    radial-gradient(900px 700px at 50% 108%,rgba(255,95,200,.08),transparent 65%),
    var(--bg);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.28;
  background-image:linear-gradient(rgba(120,160,220,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,160,220,.055) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),rgba(0,0,0,.25) 70%,transparent);
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
::selection{background:rgba(62,224,240,.3);color:#fff}
.wrap{width:min(var(--maxw),calc(100% - 48px));margin-inline:auto}
.section{padding:104px 0;position:relative}
.section.sm{padding:72px 0}

/* ---------- 通用文字 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--cyan);font-weight:700;margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--grad)}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.h1{font-size:clamp(38px,5.4vw,68px);line-height:1.12;letter-spacing:-.02em;font-weight:800;margin:0 0 22px}
.h2{font-size:clamp(29px,3.4vw,44px);line-height:1.22;letter-spacing:-.01em;font-weight:800;margin:0 0 16px}
.h3{font-size:20px;font-weight:700;margin:0 0 10px;line-height:1.4}
.lead{font-size:17px;color:var(--muted);max-width:760px;line-height:1.85;margin:0}
.dim{color:var(--dim)}
.sec-head{margin-bottom:48px}
.sec-head.center{text-align:center}
.sec-head.center .lead{margin-inline:auto}
.sec-head.center .eyebrow::after{content:"";width:26px;height:1px;background:var(--grad)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 28px;border-radius:999px;font-weight:700;font-size:15px;
  transition:.28s cubic-bezier(.2,.8,.2,1);white-space:nowrap;position:relative;overflow:hidden;
}
.btn-primary{background:var(--grad);color:#050a14;box-shadow:0 10px 34px rgba(110,140,255,.28)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 44px rgba(110,140,255,.45)}
.btn-ghost{border:1px solid var(--line-strong);background:rgba(255,255,255,.03);color:var(--txt);backdrop-filter:blur(8px)}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(62,224,240,.09);transform:translateY(-3px)}
.btn .arr{font-size:18px;line-height:1;transition:transform .25s}
.btn:hover .arr{transform:translateX(4px)}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:36px}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:100;
  display:flex;align-items:center;transition:.3s;
  background:rgba(6,9,17,.62);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(140,170,225,.08);
}
.nav.scrolled{background:rgba(6,9,17,.88);backdrop-filter:blur(18px);border-bottom-color:var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand img{height:60px;width:auto;object-fit:contain;filter:drop-shadow(0 2px 10px rgba(0,0,0,.55))}
.brand-txt{display:none}
.brand-txt b{font-size:15px;letter-spacing:.04em}
.brand-txt small{font-size:10px;letter-spacing:.22em;color:var(--dim);text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  padding:9px 15px;border-radius:10px;font-size:14px;color:var(--muted);transition:.22s;position:relative;
}
.nav-links a:hover{color:var(--txt);background:rgba(255,255,255,.05)}
.nav-links a.active{color:var(--txt)}
.nav-links a.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;border-radius:2px;background:var(--grad);
}
.nav-cta{padding:9px 20px!important;border-radius:999px!important;border:1px solid var(--line-strong);color:var(--cyan)!important}
.nav-cta:hover{background:rgba(62,224,240,.1)!important}
.burger{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:5px}
.burger span{width:18px;height:2px;background:var(--txt);border-radius:2px;transition:.25s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;padding-top:var(--nav-h)}
/* 首屏背景图：opacity 调图本身的可见度（越高越清晰），下方 hero-mask 调暗度 */
.hero-bg{
  position:absolute;inset:0;
  background-image:url(../assets/images/hero-cyber.webp);
  background-size:cover;background-position:center;
  opacity:.86;filter:brightness(1.2) saturate(1.08) contrast(1.02);
}
/* 遮罩：主层从左到右 70% → 0%（文字在左侧，右侧完整露出背景图）；
   辅层只管顶部导航压暗与底部融接深色页面，中间全透明，不压制画面。
   调暗度改每个 rgba(6,9,17,α) 的 α：越大越暗，0 = 完全透明。 */
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(90deg,
               rgba(6,9,17,.90) 0%,
               rgba(6,9,17,.86) 18%,
               rgba(6,9,17,.72) 38%,
               rgba(6,9,17,.30) 60%,
               rgba(6,9,17,.12) 82%,
               rgba(6,9,17,0) 100%),
             linear-gradient(0deg,
               var(--bg) 0%,
               rgba(6,9,17,.60) 5%,
               transparent 20%,
               transparent 84%,
               rgba(6,9,17,.16) 100%);
}
.hero-glow{position:absolute;width:640px;height:640px;border-radius:50%;filter:blur(120px);opacity:.22;pointer-events:none}
.hero-glow.a{background:#3ee0f0;left:-180px;top:8%}
.hero-glow.b{background:#8b6cff;right:-160px;bottom:-140px}
.hero-inner{position:relative;z-index:2;padding:80px 0 100px;min-width:0;max-width:100%}
.hero .h1{max-width:1000px;font-size:clamp(34px,4.6vw,60px);overflow-wrap:break-word;text-shadow:0 2px 20px rgba(0,0,0,.75),0 0 40px rgba(0,0,0,.45)}
.hero .h1 .grad-text{text-shadow:none}
.hero .lead{max-width:660px;font-size:18px;color:#eef3fc;text-shadow:0 1px 2px rgba(0,0,0,1),0 2px 14px rgba(0,0,0,1),0 0 8px rgba(0,0,0,.9),0 0 34px rgba(0,0,0,.9)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px}
.hero-tags span{
  padding:8px 16px;border:1px solid var(--line);border-radius:999px;font-size:13px;color:#cdd9ec;
  background:rgba(6,9,17,.58);backdrop-filter:blur(6px);text-shadow:0 1px 6px rgba(0,0,0,.8);
}
.hero-tags span::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--cyan);margin-right:9px;vertical-align:middle;box-shadow:0 0 10px var(--cyan)}
.scroll-hint{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);z-index:2;font-size:11px;letter-spacing:.22em;color:var(--dim);text-transform:uppercase;display:flex;flex-direction:column;align-items:center;gap:10px}
.scroll-hint i{width:1px;height:38px;background:linear-gradient(var(--cyan),transparent);animation:drop 1.8s infinite}
@keyframes drop{0%{opacity:0;transform:translateY(-8px)}50%{opacity:1}100%{opacity:0;transform:translateY(10px)}}

/* ---------- 统计 ---------- */
.stats-band{border-block:1px solid var(--line);background:rgba(10,15,28,.6);backdrop-filter:blur(10px)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding:38px 0}
.stat{text-align:center;border-right:1px solid var(--line);padding:6px 12px}
.stat:last-child{border-right:0}
.stat-num{font-size:clamp(30px,3.6vw,46px);font-weight:800;line-height:1;letter-spacing:-.03em}
.stat-num em{font-style:normal;font-size:.5em;margin-left:3px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-label{font-size:13px;color:var(--muted);margin-top:12px;letter-spacing:.06em}

/* ---------- 卡片通用 ---------- */
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  backdrop-filter:blur(14px);overflow:hidden;position:relative;transition:.32s cubic-bezier(.2,.8,.2,1);
}
.card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;pointer-events:none;opacity:0;transition:.3s;
  background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.card:hover::before{opacity:1}
.card-img{aspect-ratio:16/10;overflow:hidden;background:#0c1220}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.card:hover .card-img img{transform:scale(1.06)}
.card-body{padding:24px}
.card-body p{color:var(--muted);font-size:14px;margin:0;line-height:1.8}

/* ---------- 能力卡 ---------- */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cap-card{padding:30px;min-height:260px;display:flex;flex-direction:column}
.cap-no{font-size:12px;letter-spacing:.2em;color:var(--cyan);font-weight:700;margin-bottom:20px}
.cap-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;margin-bottom:22px;
  background:var(--grad-soft);border:1px solid var(--line-strong);font-size:22px;
}
.cap-card .h3{font-size:19px}
.cap-card p{color:var(--muted);font-size:14px;line-height:1.8;margin:0 0 18px;flex:1}
.cap-points{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:7px}
.cap-points li{font-size:11.5px;color:var(--dim);border:1px solid var(--line);border-radius:6px;padding:4px 9px}

/* ---------- 精选项目 ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feat-card .card-body{padding:22px}
.feat-type{font-size:11px;letter-spacing:.1em;color:var(--cyan);text-transform:uppercase;font-weight:700}
.feat-card .h3{margin-top:8px;font-size:17px}
.feat-card p{font-size:13px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.tag-row span{font-size:11px;color:var(--dim);background:rgba(255,255,255,.04);border:1px solid var(--line);padding:3px 9px;border-radius:999px}

/* ---------- Tab 筛选 ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:32px}
.tab{
  padding:9px 18px;border-radius:999px;border:1px solid var(--line);color:var(--muted);
  font-size:13.5px;transition:.22s;background:rgba(255,255,255,.02);
}
.tab:hover{color:var(--txt);border-color:var(--line-strong)}
.tab.active{background:var(--grad);color:#050a14;font-weight:700;border-color:transparent}

/* ---------- 画廊 ---------- */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gitem{
  position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--line);
  aspect-ratio:4/3;background:#0c1220;cursor:zoom-in;transition:.3s;
}
.gitem img{width:100%;height:100%;object-fit:cover;transition:transform .55s}
.gitem:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 16px 40px rgba(0,0,0,.45)}
.gitem:hover img{transform:scale(1.07)}
.gitem::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(4,7,14,.92),transparent 58%);opacity:.9}
.gcap{position:absolute;left:14px;right:14px;bottom:12px;z-index:2;text-shadow:0 1px 6px rgba(0,0,0,.95)}
.gcap b{display:block;font-size:12.5px;font-weight:600;line-height:1.45}
.gcap em{display:block;margin-top:5px;font-size:10.5px;font-style:normal;color:var(--cyan);opacity:.92;letter-spacing:.02em}
.gcap small{font-size:10.5px;color:var(--cyan);letter-spacing:.06em}
.gcount{position:absolute;top:10px;right:10px;z-index:3;padding:4px 10px;border-radius:999px;font-size:11px;font-weight:700;letter-spacing:.04em;color:#06121a;background:var(--cyan);box-shadow:0 4px 14px rgba(0,0,0,.45)}
.gitem[hidden]{display:none}

/* ---------- 证书墙 ---------- */
.cert-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.citem{
  border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#f4f6fb;
  aspect-ratio:3/4;cursor:default;transition:.3s;position:relative;
  user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;
}
.citem img{
  width:100%;height:100%;object-fit:contain;background:#fff;
  pointer-events:none;user-select:none;-webkit-user-select:none;-webkit-user-drag:none;
}
.citem:hover{transform:translateY(-5px);border-color:var(--cyan);box-shadow:0 16px 40px rgba(0,0,0,.5)}
.citem::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(4,7,14,.86),transparent 46%);opacity:0;transition:.3s}
.citem:hover::after{opacity:1}
.ccap{position:absolute;left:10px;right:10px;bottom:9px;z-index:2;font-size:11px;line-height:1.4;color:#fff;opacity:0;transition:.3s;font-weight:600}
.citem:hover .ccap{opacity:1}
.citem[hidden]{display:none}

/* ---------- 资质高亮 ---------- */
.hl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.hl{padding:26px;text-align:center}
.hl-ico{font-size:26px;margin-bottom:14px;display:block}
.hl .h3{font-size:16px;margin-bottom:6px}
.hl small{color:var(--dim);font-size:12.5px}

/* ---------- 登记表 ---------- */
.reg-table{width:100%;border-collapse:collapse;font-size:14px}
.reg-table thead th{
  text-align:left;padding:14px 18px;color:var(--cyan);font-size:12px;letter-spacing:.1em;
  text-transform:uppercase;border-bottom:1px solid var(--line-strong);font-weight:700;
}
.reg-table tbody td{padding:15px 18px;border-bottom:1px solid var(--line);color:var(--muted)}
.reg-table tbody tr:hover{background:rgba(255,255,255,.025)}
.reg-table tbody td:first-child{color:var(--txt);font-weight:600}
.reg-table code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--cyan);font-size:12.5px}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--panel)}

/* ---------- 技术栈 / 行业 ---------- */
.tech-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tech-card{padding:26px}
.tech-card h4{font-size:13px;color:var(--cyan);letter-spacing:.12em;text-transform:uppercase;margin:0 0 18px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:12.5px;color:var(--muted);border:1px solid var(--line);background:rgba(255,255,255,.025);padding:6px 12px;border-radius:8px;transition:.2s}
.chip:hover{color:var(--txt);border-color:var(--line-strong)}
.industries{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:36px}
.industries span{
  padding:9px 20px;border-radius:999px;font-size:13.5px;color:var(--muted);
  border:1px solid var(--line);background:var(--grad-soft);
}

/* ---------- 关于 / 时间线 ---------- */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}
.about-copy p{color:var(--muted);line-height:2;font-size:15px;margin:0 0 20px}
.creed{
  margin-top:34px;padding:26px 30px;border-left:3px solid var(--cyan);border-radius:0 14px 14px 0;
  background:var(--grad-soft);font-size:19px;font-weight:700;letter-spacing:.02em;
}
.timeline{position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:1px;background:linear-gradient(var(--cyan),var(--violet),transparent)}
.tl-item{position:relative;padding-bottom:30px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-28px;top:7px;width:11px;height:11px;border-radius:50%;background:var(--bg);border:2px solid var(--cyan);box-shadow:0 0 14px rgba(62,224,240,.6)}
.tl-year{font-size:12px;color:var(--cyan);font-weight:700;letter-spacing:.1em}
.tl-item h4{margin:6px 0 6px;font-size:16px}
.tl-item p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.75}

/* ---------- 分类列表 ---------- */
.cat-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.cat{border:1px solid var(--line);border-radius:14px;padding:22px 24px;background:var(--panel);transition:.25s}
.cat:hover{border-color:var(--line-strong);transform:translateX(4px)}
.cat h4{margin:0 0 8px;font-size:16px;color:var(--txt)}
.cat h4::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--cyan);margin-right:10px;vertical-align:middle;box-shadow:0 0 10px var(--cyan)}
.cat p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.8}

/* ---------- 客户致谢 ---------- */
.endorse{display:grid;grid-template-columns:340px 1fr;gap:52px;align-items:center}
.endorse-img{border-radius:var(--r);overflow:hidden;border:1px solid var(--line);background:#fff;padding:8px;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.endorse-img img{width:100%;border-radius:10px;pointer-events:none;user-select:none;-webkit-user-select:none;-webkit-user-drag:none}
.quote{font-size:clamp(18px,2.1vw,25px);line-height:1.85;font-weight:600;margin:0 0 22px}
.quote::before{content:"“";font-size:56px;color:var(--cyan);line-height:0;vertical-align:-18px;margin-right:6px;font-family:Georgia,serif}
.endorse-meta{color:var(--muted);font-size:14px;line-height:1.9}
.endorse-meta b{color:var(--txt)}
.endorse.flip{grid-template-columns:1fr 340px}
.endorse.flip .endorse-img{order:2}
.recog-award{display:inline-block;margin:0 0 18px;padding:7px 16px;border:1px solid var(--line-strong);border-radius:999px;color:var(--cyan);font-size:13px;letter-spacing:.06em;background:rgba(62,224,240,.07)}
.recog-award + .lead{max-width:620px}

/* ---------- 客户声音轮播 ---------- */
.vc{position:relative}
.vc-stage{position:relative}
.vc-viewport{overflow:hidden;border-radius:var(--r)}
.vc-track{display:flex;transition:transform .65s cubic-bezier(.22,.61,.36,1);will-change:transform}
.vc-slide{flex:0 0 100%;width:100%;min-width:0}
.vc-slide .reveal{opacity:1;transform:none}
.vc-arrow{
  position:absolute;top:50%;z-index:3;transform:translateY(-50%);
  width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line-strong);background:rgba(10,15,28,.6);
  backdrop-filter:blur(8px);color:var(--txt);font-size:25px;line-height:1;
  cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.25s;
}
.vc-prev{left:-64px}
.vc-next{right:-64px}
.vc-arrow:hover{background:rgba(62,224,240,.18);border-color:var(--cyan);color:#fff;transform:translateY(-50%) scale(1.07)}
.vc-arrow:focus-visible,.vc-dot:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.vc-bar{display:flex;align-items:center;justify-content:center;gap:20px;margin-top:28px}
.vc-dots{display:flex;align-items:center;gap:10px}
.vc-num,.vc-total,.vc-sep{font-size:12px;letter-spacing:.14em;color:var(--dim);font-variant-numeric:tabular-nums}
.vc-num{color:var(--cyan)}
.vc-sep{margin:0 2px;opacity:.6}
.vc-dot{width:26px;height:4px;padding:0;border:0;border-radius:999px;background:rgba(140,170,225,.22);cursor:pointer;transition:.25s}
.vc-dot.active{width:44px;background:var(--cyan)}

/* ---------- 视频条 ---------- */
.videos{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.vid{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--panel)}
.vid video{width:100%;display:block;aspect-ratio:16/9;object-fit:cover;background:#000}
.vid-cap{padding:16px 20px;font-size:14px;font-weight:600}
.vid-cap small{display:block;color:var(--dim);font-weight:400;font-size:12px;margin-top:4px}

/* ---------- CTA ---------- */
.cta{
  position:relative;overflow:hidden;border:1px solid var(--line-strong);border-radius:26px;
  padding:64px 56px;text-align:center;background:var(--grad-soft);
}
.cta::before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:#8b6cff;filter:blur(130px);opacity:.18;left:50%;top:-300px;transform:translateX(-50%)}
.cta .h2{position:relative}
.cta .lead{position:relative;margin-inline:auto}
.cta .btn-row{position:relative;justify-content:center}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.contact-card{padding:30px}
.contact-card .ico{font-size:24px;margin-bottom:16px;display:block}
.contact-card h4{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);margin:0 0 12px;font-weight:700}
.contact-card p{margin:0;color:var(--txt);font-size:16px;line-height:1.8;word-break:break-word}
.contact-card p a{color:var(--cyan);font-weight:700;letter-spacing:.03em;transition:.2s}
.contact-card p a:hover{color:#fff;text-shadow:0 0 16px rgba(62,224,240,.75)}
.tel-arr{font-size:.8em;opacity:.7}
.contact-card small{display:block;color:var(--dim);font-size:12.5px;margin-top:10px;line-height:1.7}
.copy-btn{margin-top:16px;font-size:12px;color:var(--cyan);border:1px solid var(--line);border-radius:8px;padding:7px 13px;transition:.2s}
.copy-btn:hover{border-color:var(--cyan);background:rgba(62,224,240,.08)}
.notice{
  margin-top:26px;padding:18px 22px;border-radius:12px;border:1px dashed var(--line-strong);
  color:var(--muted);font-size:13.5px;background:rgba(255,255,255,.02);
}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--line);background:rgba(6,9,17,.7);padding:64px 0 28px;margin-top:40px}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;padding-bottom:44px}
.foot-brand{display:flex;align-items:center;gap:16px}
.foot-brand img{height:76px;width:76px;flex:0 0 auto;object-fit:contain}
.foot-brand p{color:var(--muted);font-size:13.5px;line-height:1.9;max-width:340px;margin:0}
.foot-col h5{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--txt);margin:0 0 18px}
.foot-col a,.foot-col span{display:block;color:var(--muted);font-size:13.5px;margin-bottom:11px;transition:.2s}
.foot-col a:hover{color:var(--cyan);transform:translateX(3px)}
.foot-bottom{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:var(--dim);font-size:12.5px}

/* ---------- 内页 Hero ---------- */
.page-hero{position:relative;padding:calc(var(--nav-h) + 96px) 0 70px;overflow:hidden}
.page-hero::before{content:"";position:absolute;width:700px;height:400px;border-radius:50%;background:#3ee0f0;filter:blur(160px);opacity:.12;left:-120px;top:-120px}
.page-hero::after{content:"";position:absolute;width:600px;height:380px;border-radius:50%;background:#8b6cff;filter:blur(150px);opacity:.13;right:-100px;top:0}
.page-hero .wrap{position:relative;z-index:2}
.page-hero .h1{font-size:clamp(36px,4.6vw,58px);margin-bottom:18px;text-wrap:balance}
.breadcrumb{font-size:12.5px;color:var(--dim);margin-bottom:22px;letter-spacing:.06em}
.breadcrumb a:hover{color:var(--cyan)}

/* ---------- 灯箱 ---------- */
.lb{position:fixed;inset:0;z-index:300;background:rgba(3,5,10,.94);backdrop-filter:blur(14px);display:none;align-items:center;justify-content:center;padding:40px}
.lb.open{display:flex}
.lb img{max-width:min(94vw,1200px);max-height:82vh;object-fit:contain;border-radius:10px;box-shadow:0 30px 90px rgba(0,0,0,.7);background:#fff}
.lb-cap{position:absolute;bottom:24px;left:0;right:0;text-align:center;color:var(--muted);font-size:13.5px;padding:0 20px}
.lb-count{position:absolute;top:28px;left:50%;transform:translateX(-50%);color:var(--cyan);font-size:12px;font-weight:600;letter-spacing:.24em;font-variant-numeric:tabular-nums}
.lb.single .lb-nav{display:none}
.lb-close,.lb-nav{position:absolute;background:rgba(255,255,255,.08);border:1px solid var(--line);border-radius:50%;width:46px;height:46px;display:grid;place-items:center;font-size:22px;transition:.2s}
.lb-close{top:24px;right:26px}
.lb-nav:hover,.lb-close:hover{background:rgba(62,224,240,.18);border-color:var(--cyan)}
.lb-prev{left:26px;top:50%;transform:translateY(-50%)}
.lb-next{right:26px;top:50%;transform:translateY(-50%)}
/* 项目合集：大图下方一行缩略图，点小图直接切大图 */
.lb.with-thumbs{flex-direction:column;gap:14px;padding:24px}
.lb.with-thumbs #lbImg{max-height:62vh}
.lb.with-thumbs .lb-cap{position:static;padding:0;max-width:min(94vw,1200px);text-align:center}
.lb-thumbs{
  display:none;position:relative;width:100%;max-width:min(94vw,1200px);
  gap:8px;padding:9px 10px;overflow-x:auto;overflow-y:hidden;
  border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.045);
  scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent;
}
.lb.with-thumbs .lb-thumbs{display:flex}
.lb-thumbs::-webkit-scrollbar{height:6px}
.lb-thumbs::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:6px}
.lb-thumb{
  flex:0 0 auto;width:74px;height:56px;padding:0;border:2px solid transparent;border-radius:8px;
  overflow:hidden;background:#0c1220;cursor:pointer;opacity:.5;transition:.2s;
}
.lb-thumb:hover{opacity:.88}
.lb-thumb.active{opacity:1;border-color:var(--cyan);box-shadow:0 0 14px rgba(62,224,240,.5)}
.lb .lb-thumbs .lb-thumb img{
  width:100%;height:100%;max-width:none;max-height:none;object-fit:cover;
  border-radius:5px;box-shadow:none;background:#0c1220;pointer-events:none;
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}.reveal[data-d="4"]{transition-delay:.32s}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.vc-track{transition:none}*{animation:none!important}}

/* ---------- 响应式 ---------- */
@media (max-width:1400px){
  .vc-prev{left:8px}
  .vc-next{right:8px}
  .vc-arrow{width:40px;height:40px;font-size:22px;background:rgba(6,9,17,.82)}
  .vc-slide{padding:0 52px}
}
@media (max-width:1080px){
  .cap-grid,.feat-grid,.tech-grid,.videos{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .cert-grid{grid-template-columns:repeat(4,1fr)}
  .hl-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .endorse{grid-template-columns:280px 1fr;gap:36px}
  .endorse.flip{grid-template-columns:1fr 280px}
  /* 中等屏：文字横向占比变大，右侧终点留一点暗度兜底，避免正文尾部压在亮背景上 */
  .hero-mask{
    background:linear-gradient(90deg,rgba(6,9,17,.70) 0%,rgba(6,9,17,.60) 35%,rgba(6,9,17,.34) 70%,rgba(6,9,17,.22) 100%),
               linear-gradient(0deg,var(--bg) 0%,rgba(6,9,17,.55) 5%,transparent 20%,transparent 84%,rgba(6,9,17,.16) 100%);
  }
}
@media (max-width:820px){
  .nav-links{
    position:fixed;top:var(--nav-h);left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(6,9,17,.97);backdrop-filter:blur(20px);border-bottom:1px solid var(--line);
    padding:16px 24px 24px;transform:translateY(-12px);opacity:0;pointer-events:none;transition:.25s;
  }
  .nav-links.open{transform:none;opacity:1;pointer-events:auto}
  .nav-links a{padding:12px 14px;font-size:15px}
  .nav-links a.active::after{display:none}
  .burger{display:flex}
  .section{padding:76px 0}
  .stats{grid-template-columns:repeat(2,1fr);gap:26px 0}
  .stat:nth-child(2){border-right:0}
  .foot-top{grid-template-columns:1fr 1fr;gap:32px}
  .foot-brand{grid-column:1/-1}
  .cta{padding:46px 26px}
  .cat-list{grid-template-columns:1fr}
}
@media (max-width:620px){
  .wrap{width:calc(100% - 32px)}
  .brand img{height:48px}
  .h1,.h2{overflow-wrap:break-word}
  .cap-grid,.feat-grid,.tech-grid,.videos,.contact-grid,.hl-grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .h1{font-size:36px}
  .page-hero .h1{font-size:clamp(26px,7.2vw,34px)}
  .hero{min-height:92vh}
  /* 手机：不再把背景图压到半透明，改用整体偏暗的横向遮罩保证铺满宽度的文字可读 */
  .hero-bg{opacity:.72}
  .hero-mask{
    background:linear-gradient(90deg,rgba(6,9,17,.70) 0%,rgba(6,9,17,.58) 45%,rgba(6,9,17,.38) 100%),
               linear-gradient(0deg,var(--bg) 0%,transparent 20%,rgba(6,9,17,.18) 100%);
  }
  .endorse{grid-template-columns:1fr}
  .endorse.flip{grid-template-columns:1fr}
  .endorse-img{max-width:300px}
  .endorse.flip .endorse-img{order:0}
  .vc-prev{left:0}
  .vc-next{right:0}
  .vc-arrow{width:34px;height:34px;font-size:19px}
  .vc-slide{padding:0 40px}
  .foot-top{grid-template-columns:1fr}
  .foot-brand img{height:60px;width:60px}
  .foot-bottom{flex-direction:column;gap:8px}
  .lb{padding:16px}
  .lb.with-thumbs{padding:14px;gap:10px}
  .lb.with-thumbs #lbImg{max-height:56vh}
  .lb-thumb{width:58px;height:44px}
  .lb-nav{width:38px;height:38px;font-size:18px}
  .lb-prev{left:8px}.lb-next{right:8px}
  .page-hero{padding-top:calc(var(--nav-h) + 66px)}
}