/* ============================================================
   鹏冲科技 · 官网样式表
   主题：晨光科技 (Morning Light Tech)
   亮底 + 极光渐变 + 玻璃拟态 + 彩色柔光阴影
   字体：思源宋体（文化厚度）/ 思源黑体（信息）/ 等宽（场记感）
   ============================================================ */

:root{
  /* 底色 */
  --bg:#F4F7FC;
  --bg2:#FFFFFF;
  --bg3:#EBF2FC;
  --warm:#FFF7F0;

  /* 文字 */
  --ink:#0A1428;
  --ink2:#1D2C48;
  --muted:#5D6E8A;
  --dim:#93A3BD;

  /* 线条 */
  --line:rgba(10,20,40,.085);
  --line2:rgba(10,20,40,.16);

  /* 主色 */
  --sky:#0D8CFF;
  --sky-d:#0A5CD6;
  --mint:#00C39E;
  --mint-d:#029B7E;
  --sun:#FF8A2B;
  --sun-d:#EC6208;
  --indigo:#6E59F0;

  /* 彩色柔光阴影 */
  --sh1:0 1px 2px rgba(12,45,90,.05), 0 6px 18px rgba(12,45,90,.06);
  --sh2:0 2px 6px rgba(12,45,90,.06), 0 18px 44px rgba(12,45,90,.10);
  --sh3:0 6px 16px rgba(12,45,90,.08), 0 32px 70px rgba(12,45,90,.14);
  --glow-sky:0 14px 44px rgba(13,140,255,.30);
  --glow-sun:0 14px 40px rgba(255,138,43,.34);
  --glow-mint:0 14px 40px rgba(0,195,158,.30);
  --glow-indigo:0 14px 40px rgba(110,89,240,.30);

  --f-disp:'Noto Serif SC',Georgia,'Songti SC','SimSun',serif;
  --f-body:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --f-mono:'JetBrains Mono',ui-monospace,Menlo,Consolas,monospace;

  --ease:cubic-bezier(.16,1,.3,1);
  --wrap:1280px;
  --r:18px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:104px}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--f-body);font-weight:400;line-height:1.7;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--f-disp);font-weight:900;line-height:1.18;margin:0;letter-spacing:-.012em;color:var(--ink)}
p{margin:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
button{font-family:inherit}
::selection{background:var(--sky);color:#fff}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px}
.mono{font-family:var(--f-mono);letter-spacing:.04em}

/* ---------- 极光背景层 ---------- */
.aurora{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:0}
.aurora i{position:absolute;border-radius:50%;filter:blur(78px);opacity:.62}
.aurora i:nth-child(1){width:680px;height:680px;left:-160px;top:-220px;background:radial-gradient(circle,rgba(13,140,255,.62),transparent 72%)}
.aurora i:nth-child(2){width:560px;height:560px;right:-120px;top:-60px;background:radial-gradient(circle,rgba(255,138,43,.52),transparent 72%)}
.aurora i:nth-child(3){width:520px;height:520px;left:22%;bottom:-260px;background:radial-gradient(circle,rgba(0,195,158,.44),transparent 72%)}

/* 蓝图网格 */
.blueprint{
  position:absolute;inset:0;pointer-events:none;z-index:0;opacity:.62;
  background-image:
    linear-gradient(rgba(13,140,255,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(13,140,255,.10) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(120% 90% at 50% 0%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(120% 90% at 50% 0%,#000 30%,transparent 78%);
}

/* ---------- 滚动进度 ---------- */
.progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:9999;border-radius:0 3px 3px 0;
  background:linear-gradient(90deg,var(--sky),var(--mint),var(--sun));transition:width .1s linear}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:900;height:76px;display:flex;align-items:center;
  transition:background .4s var(--ease),box-shadow .4s var(--ease),border-color .4s;
  border-bottom:1px solid transparent;
}
.nav.solid{
  background:rgba(255,255,255,.80);
  backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);
  border-bottom-color:var(--line);box-shadow:0 6px 30px rgba(12,45,90,.06);
}
.nav .wrap{display:flex;align-items:center;gap:36px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo img{height:34px;width:auto;display:block}
.navlinks{display:flex;gap:26px;margin-left:auto;font-size:14.5px;color:var(--muted)}
.navlinks a{position:relative;padding:6px 0;transition:color .25s;white-space:nowrap}
.navlinks a::after{content:'';position:absolute;left:0;bottom:0;height:2px;width:0;border-radius:2px;
  background:linear-gradient(90deg,var(--sky),var(--mint));transition:width .3s var(--ease)}
.navlinks a:hover{color:var(--ink)}
.navlinks a:hover::after,.navlinks a.on::after{width:100%}
.navlinks a.on{color:var(--ink);font-weight:500}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;cursor:pointer;border:0;position:relative;overflow:hidden;
  font-family:var(--f-body);font-weight:500;font-size:14.5px;
  padding:13px 26px;border-radius:100px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-primary{background:linear-gradient(135deg,var(--sun),var(--sun-d));color:#fff;box-shadow:var(--glow-sun)}
.btn-primary::before{content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.5),transparent);transform:translateX(-130%)}
.btn-primary:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 20px 50px rgba(255,138,43,.46)}
.btn-primary:hover::before{animation:sheen .8s var(--ease)}
@keyframes sheen{to{transform:translateX(130%)}}
.btn-sky{background:linear-gradient(135deg,var(--sky),var(--sky-d));color:#fff;box-shadow:var(--glow-sky)}
.btn-sky:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 20px 50px rgba(13,140,255,.44)}
.btn-ghost{background:rgba(255,255,255,.75);color:var(--ink);border:1px solid var(--line2);backdrop-filter:blur(8px)}
.btn-ghost:hover{border-color:var(--sky);color:var(--sky-d);transform:translateY(-2px);box-shadow:var(--sh2)}
.btn-sm{padding:10px 20px;font-size:13.5px}
.nav .btn{padding:11px 22px;flex-shrink:0}

/* 了解详情 文字链 */
.more{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--sky-d);
  margin-top:22px;transition:gap .3s var(--ease),color .3s;
}
.more::after{content:'';width:16px;height:1.5px;background:currentColor;position:relative;transition:width .3s var(--ease)}
.more:hover{gap:12px}
.more:hover::after{width:24px}

/* ---------- 首屏 ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:160px 0 100px;overflow:hidden;
  background:linear-gradient(180deg,#F8FBFF 0%,#F2F7FE 55%,var(--bg) 100%)}
@supports(min-height:100svh){.hero{min-height:100svh}}
#heroCanvas{position:absolute;inset:0;width:100%;height:100%;z-index:1}
.hero-veil{position:absolute;inset:0;z-index:2;pointer-events:none;opacity:var(--hero-mask,1);transition:opacity .35s var(--ease);
  background:linear-gradient(90deg,rgba(248,251,255,.93) 0%,rgba(248,251,255,.66) 30%,rgba(248,251,255,.20) 52%,transparent 74%)}
.hero-inner{position:relative;z-index:3;display:grid;grid-template-columns:1fr 244px;gap:56px;align-items:end;width:100%}
/* 首屏“纯净模式”：停留到后台设定的秒数后，隐藏文字、蒙版淡出为透明，让视频清晰可见（滑过半屏由 JS 移除 .is-clean 恢复） */
.hero-inner{transition:opacity .6s var(--ease),transform .6s var(--ease)}
.hero.is-clean .hero-inner{opacity:0;transform:translateY(-14px);pointer-events:none}
.hero.is-clean .hero-veil{opacity:0}
.hero.is-clean .hero-bg::after{opacity:0}
.eyebrow{display:flex;align-items:center;gap:11px;font-size:12px;color:var(--muted);letter-spacing:.1em;margin-bottom:26px}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(0,195,158,.16);animation:pulse 2.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{font-size:clamp(2.5rem,6vw,5.4rem);letter-spacing:-.035em;margin-bottom:28px}
.hero h1 .l{display:block;overflow:hidden}
.hero h1 .l span{display:block;transform:translateY(105%);animation:riseIn 1.05s var(--ease) forwards}
.hero h1 .l:nth-child(1) span{animation-delay:.15s}
.hero h1 .l:nth-child(2) span{animation-delay:.27s}
.hero h1 em{
  font-style:normal;position:relative;
  background:linear-gradient(100deg,var(--sky),var(--mint) 52%,var(--sun));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
@keyframes riseIn{to{transform:translateY(0)}}
.hero-sub{max-width:610px;font-size:clamp(15px,1.5vw,17.5px);color:var(--muted);line-height:1.95;
  opacity:0;animation:fadeUp .9s var(--ease) .62s forwards}
.hero-sub b{color:var(--ink);font-weight:500}
.hero-cta{display:flex;gap:15px;align-items:center;margin-top:42px;flex-wrap:wrap;
  opacity:0;animation:fadeUp .9s var(--ease) .78s forwards}
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}

/* 场记栏 */
.rail{position:relative;border-left:1px solid var(--line2);padding-left:24px;
  display:flex;flex-direction:column;gap:22px;
  opacity:0;animation:fadeUp .9s var(--ease) .9s forwards}
.rail::before{content:'';position:absolute;left:-25px;top:-40px;bottom:-40px;right:-140px;z-index:-1;
  background:linear-gradient(90deg,transparent,rgba(248,251,255,.86) 58%);pointer-events:none}
.rail-row{font-size:10.5px;color:var(--dim);letter-spacing:.16em;text-transform:uppercase}
.rail-row strong{display:block;color:var(--ink2);font-size:13px;font-weight:500;letter-spacing:.02em;margin-top:5px;font-family:var(--f-body)}
.rec{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--sun-d);letter-spacing:.18em;font-weight:500}
.rec i{width:8px;height:8px;border-radius:50%;background:var(--sun);animation:pulse 1.6s infinite;box-shadow:0 0 0 4px rgba(255,138,43,.16)}
.rail-bars{display:flex;gap:3px;align-items:flex-end;height:34px}
.rail-bars i{flex:1;border-radius:2px;background:linear-gradient(180deg,var(--sky),rgba(13,140,255,.16));animation:bar 2.4s ease-in-out infinite}
@keyframes bar{0%,100%{transform:scaleY(.3)}50%{transform:scaleY(1)}}

.scrollhint{position:absolute;left:32px;bottom:36px;z-index:3;display:flex;align-items:center;gap:10px;
  font-size:10.5px;color:var(--dim);letter-spacing:.18em}
.scrollhint i{display:block;width:2px;height:34px;border-radius:2px;
  background:linear-gradient(180deg,var(--sky),transparent);animation:drop 2.2s ease-in-out infinite}
@keyframes drop{0%,100%{transform:scaleY(.4);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}}

/* ---------- 业务滚动带 ---------- */
.marquee{border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:22px 0;overflow:hidden;background:rgba(255,255,255,.72);backdrop-filter:blur(10px)}
.marquee-track{display:flex;width:max-content;animation:slide 44s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes slide{to{transform:translateX(-50%)}}
.marquee-item{display:flex;align-items:center;gap:26px;padding:0 26px;white-space:nowrap;
  font-family:var(--f-disp);font-weight:700;font-size:clamp(17px,2.1vw,26px);color:var(--dim);
  transition:color .3s}
.marquee-item:hover{color:var(--sky-d)}
.marquee-item i{width:6px;height:6px;border-radius:50%;background:linear-gradient(135deg,var(--sky),var(--mint));flex-shrink:0}

/* ---------- 通用区块 ---------- */
section{position:relative}
.sec{padding:120px 0}
.sec-tint{background:linear-gradient(180deg,var(--bg) 0%,var(--bg3) 22%,var(--bg3) 78%,var(--bg) 100%)}
.sec-warm{background:linear-gradient(180deg,var(--bg) 0%,var(--warm) 24%,var(--warm) 76%,var(--bg) 100%)}
.shead{margin-bottom:62px;max-width:840px;position:relative;z-index:2}
.shead .tc{display:block;font-family:var(--f-mono);font-size:11px;color:var(--sky-d);letter-spacing:.2em;margin-bottom:20px}
.shead h2{font-size:clamp(1.9rem,3.9vw,3.25rem);margin-bottom:22px}
.shead p{font-size:clamp(15px,1.4vw,17px);color:var(--muted);line-height:1.95;max-width:700px}
.shead-row{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;flex-wrap:wrap}

.rv{opacity:0;transform:translateY(26px);transition:opacity .75s var(--ease),transform .75s var(--ease)}
.rv.in{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}.d4{transition-delay:.32s}

/* 待填占位 */
.tbd{border-bottom:1.5px dashed var(--dim);color:var(--dim);padding:0 6px;font-family:var(--f-mono);font-size:.9em}
.tbd-note{font-family:var(--f-mono);font-size:10.5px;color:var(--dim);letter-spacing:.06em;margin-top:16px;line-height:1.9}

/* ---------- 数据带 ---------- */
.stats{padding:76px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;z-index:5}
.stat{background:var(--bg2);border:1px solid var(--line);border-radius:var(--r);padding:38px 32px;box-shadow:var(--sh1);
  transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.stat:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.stat .n{font-family:var(--f-disp);font-weight:900;font-size:clamp(2.1rem,3.4vw,2.9rem);line-height:1;margin-bottom:14px;
  background:linear-gradient(120deg,var(--sky),var(--mint));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .k{font-size:13px;color:var(--muted)}
.stat .k+.tbd{display:none}

/* ---------- 四大板块 ---------- */
.pillars{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.pillar{
  position:relative;display:flex;flex-direction:column;background:var(--bg2);
  border:1px solid var(--line);border-radius:22px;padding:42px 38px 36px;overflow:hidden;
  box-shadow:var(--sh1);transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s;
}
.pillar::before{content:'';position:absolute;inset:0;opacity:0;transition:opacity .5s var(--ease);pointer-events:none;
  background:radial-gradient(120% 100% at 100% 0%,var(--pc,rgba(13,140,255,.10)),transparent 62%)}
.pillar:hover{transform:translateY(-6px);box-shadow:var(--sh3);border-color:var(--pc-b,var(--line2))}
.pillar:hover::before{opacity:1}
.pillar .ic{
  width:52px;height:52px;border-radius:15px;display:grid;place-items:center;margin-bottom:26px;
  background:var(--pc-soft,rgba(13,140,255,.10));transition:transform .5s var(--ease)
}
.pillar:hover .ic{transform:translateY(-3px) rotate(-6deg)}
.pillar .ic svg{width:24px;height:24px}
.pillar .no{margin-left:auto;position:absolute;right:34px;top:36px;font-family:var(--f-mono);font-size:11px;
  color:var(--dim);letter-spacing:.16em;transition:color .35s}
.pillar:hover .no{color:var(--pc-t,var(--sky))}
.pillar h3{font-size:clamp(1.35rem,2vw,1.7rem);margin-bottom:14px}
.pillar .pdesc{font-size:14px;color:var(--muted);line-height:1.85;max-width:440px}
.pillar .plist{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.pillar .plist li{font-size:12.5px;color:var(--ink2);background:var(--bg3);border:1px solid var(--line);
  padding:6px 14px;border-radius:100px;transition:.3s}
.pillar:hover .plist li{background:var(--bg2);border-color:var(--pc-b,var(--line2))}
.pillar .more{margin-top:auto;padding-top:26px}
.pillar.wide{grid-column:1/-1}
.pillar.wide .pdesc{max-width:620px}
.pillar.wide .plist{max-width:760px}

/* 三大板块分组 */
.pillar-groups{display:flex;flex-direction:column;gap:46px}
.pgroup{position:relative}
.pillars.solo{grid-template-columns:1fr}
.pillars.solo .pillar{grid-column:1/-1}

/* 板块级标题（首页 pillars / 关于矩阵 / 关于业务范围 三处通用）：
   放大加粗 + 强调色胶囊编号，扁平线性，区别于信息卡 */
.pgroup-h,.mgrp-h,.scope-div{display:flex;align-items:center;gap:16px}
.pgroup-h .pgn,.mgrp-h .pgn,.scope-div .pgn{
  font-family:var(--f-mono);font-size:12px;font-weight:700;letter-spacing:.12em;color:#fff;
  padding:6px 15px;border-radius:100px;white-space:nowrap;
  background:linear-gradient(135deg,var(--sky),var(--mint));
  box-shadow:0 8px 18px -8px rgba(13,140,255,.7)}
.pgroup-h h3,.mgrp-h b,.scope-div>b{
  font-family:var(--f-body);font-size:clamp(1.6rem,2.9vw,2.15rem);font-weight:700;
  color:var(--ink);letter-spacing:-.02em;line-height:1;margin:0}
.pgroup-h{margin-bottom:22px}
@media(max-width:720px){
  .pgroup-h,.mgrp-h,.scope-div{gap:12px}
  .pgroup-h .pgn,.mgrp-h .pgn,.scope-div .pgn{font-size:11px;padding:5px 12px}
  .pgroup-h h3,.mgrp-h b,.scope-div>b{font-size:1.35rem}
}

/* 板块强调色 */
.p-sky{--pc:rgba(13,140,255,.11);--pc-b:rgba(13,140,255,.32);--pc-t:var(--sky-d);--pc-soft:rgba(13,140,255,.10)}
.p-sun{--pc:rgba(255,138,43,.12);--pc-b:rgba(255,138,43,.34);--pc-t:var(--sun-d);--pc-soft:rgba(255,138,43,.12)}
.p-mint{--pc:rgba(0,195,158,.12);--pc-b:rgba(0,195,158,.34);--pc-t:var(--mint-d);--pc-soft:rgba(0,195,158,.11)}
.p-indigo{--pc:rgba(110,89,240,.12);--pc-b:rgba(110,89,240,.32);--pc-t:var(--indigo);--pc-soft:rgba(110,89,240,.11)}

/* ============================================================
   AI视频 —— 三段成形
   ============================================================ */
.tiles{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.tile{position:relative;background:var(--bg2);border:1px solid var(--line);border-radius:20px;overflow:hidden;
  box-shadow:var(--sh1);transition:border-color .4s var(--ease),transform .5s var(--ease),box-shadow .5s var(--ease)}
.tile:hover{transform:translateY(-5px);border-color:var(--line2);box-shadow:var(--sh3)}
.tile-art{position:relative;aspect-ratio:16/10;background:#EEF5FF;overflow:hidden;border-bottom:1px solid var(--line)}
.lyr{position:absolute;inset:0;opacity:0;transition:opacity .55s var(--ease)}
.lyr svg{width:100%;height:100%;display:block}
.tile[data-stage="1"] .l1,.tile[data-stage="2"] .l2,.tile[data-stage="3"] .l3{opacity:1}
.stage-tag{position:absolute;top:16px;left:16px;z-index:3;font-family:var(--f-mono);font-size:10px;letter-spacing:.14em;
  padding:6px 12px;border-radius:100px;color:var(--ink2);
  background:rgba(255,255,255,.86);border:1px solid var(--line2);backdrop-filter:blur(8px);
  box-shadow:0 4px 14px rgba(12,45,90,.08)}
.tile-body{padding:26px 28px 30px}
.tile-body h3{font-size:clamp(1.2rem,1.8vw,1.5rem);margin-bottom:12px}
.tile-body p{font-size:14px;color:var(--muted);line-height:1.85;max-width:540px}
.steps{display:flex;gap:7px;margin-top:20px;flex-wrap:wrap}
.steps li{font-family:var(--f-mono);font-size:10px;letter-spacing:.1em;color:var(--dim);
  padding:6px 12px;border:1px solid var(--line);border-radius:100px;background:var(--bg3);
  transition:color .3s,background .3s,border-color .3s,transform .3s}
.steps li.on{color:#fff;transform:translateY(-1px);box-shadow:var(--sh1)}
.ui-manga .steps li.on{background:linear-gradient(135deg,var(--sun),var(--sun-d));border-color:transparent}
.ui-face  .steps li.on{background:linear-gradient(135deg,var(--indigo),#4B36D8);border-color:transparent}
.ui-ad    .steps li.on{background:linear-gradient(135deg,#FFB020,#F08A00);border-color:transparent}
.ui-3d    .steps li.on{background:linear-gradient(135deg,var(--mint),var(--mint-d));border-color:transparent}

/* ============================================================
   AI系统 —— 后台演示
   ============================================================ */
.tilt-wrap{perspective:1700px;perspective-origin:50% 40%}
.tilt{border-radius:20px;overflow:hidden;border:1px solid var(--line2);background:var(--bg2);
  box-shadow:0 40px 100px -30px rgba(12,45,90,.40),0 0 0 1px rgba(255,255,255,.6) inset;
  transform:rotateY(-9deg) rotateX(5deg) scale(.965);transition:transform 1.4s var(--ease);transform-style:preserve-3d}
.tilt.in{transform:rotateY(0) rotateX(0) scale(1)}
.dash{display:grid;grid-template-columns:196px 1fr;min-height:440px;font-size:12px;background:var(--bg2)}
.dash-side{background:#F7FAFF;border-right:1px solid var(--line);padding:20px 16px}
.dash-brand{display:flex;align-items:center;gap:9px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:16px}
.dash-brand i{width:22px;height:22px;border-radius:7px;flex-shrink:0;background:linear-gradient(135deg,var(--sky),var(--mint))}
.dash-brand span{font-family:var(--f-disp);font-weight:700;font-size:12.5px}
.dash-nav li{padding:9px 11px;border-radius:9px;color:var(--muted);margin-bottom:3px;display:flex;align-items:center;gap:9px;transition:.3s}
.dash-nav li.on{background:rgba(13,140,255,.10);color:var(--sky-d);font-weight:500}
.dash-nav i{width:5px;height:5px;border-radius:50%;background:currentColor;opacity:.65;flex-shrink:0}
.dash-main{padding:22px 24px}
.dash-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.dash-top h4{font-family:var(--f-body);font-size:13px;font-weight:500;letter-spacing:0;color:var(--ink2)}
.dash-pill{font-family:var(--f-mono);font-size:9.5px;color:var(--mint-d);background:rgba(0,195,158,.10);
  border:1px solid rgba(0,195,158,.30);padding:4px 10px;border-radius:100px}
.dash-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px}
.dash-card{background:#F9FBFF;border:1px solid var(--line);border-radius:12px;padding:15px}
.dash-card .lb{font-size:10px;color:var(--dim);margin-bottom:8px}
.dash-card .vl{font-family:var(--f-disp);font-weight:900;font-size:22px;line-height:1;color:var(--ink)}
.dash-card .vl small{font-family:var(--f-mono);font-size:10px;color:var(--dim);font-weight:400;margin-left:4px}
.dash-chart{display:flex;align-items:flex-end;gap:7px;height:108px;padding:0 2px;margin-bottom:20px}
.dash-chart i{flex:1;border-radius:4px 4px 0 0;height:0;transition:height .9s var(--ease);
  background:linear-gradient(180deg,var(--sky),rgba(13,140,255,.18))}
.tilt.in .dash-chart i{height:var(--h)}
.dash-chart i:nth-child(3n+2){background:linear-gradient(180deg,var(--mint),rgba(0,195,158,.18))}
.dash-chart i:nth-child(3n){background:linear-gradient(180deg,var(--sun),rgba(255,138,43,.18))}
.dash-rows li{display:flex;align-items:center;gap:12px;padding:10px 0;border-top:1px solid var(--line);color:var(--muted)}
.dash-rows .st{font-family:var(--f-mono);font-size:9.5px;padding:3px 9px;border-radius:100px;flex-shrink:0}
.st.ok{color:var(--mint-d);background:rgba(0,195,158,.10)}
.st.run{color:var(--sun-d);background:rgba(255,138,43,.12)}
.st.wait{color:var(--dim);background:rgba(10,20,40,.05)}
.dash-rows .nm{color:var(--ink2)}
.dash-rows .rt{margin-left:auto;font-family:var(--f-mono);font-size:10px;color:var(--dim)}
.sys-points{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:60px}
.sys-point{border-top:2px solid var(--sky);padding-top:24px}
.sys-point:nth-child(2){border-top-color:var(--mint)}
.sys-point:nth-child(3){border-top-color:var(--sun)}
.sys-point h4{font-size:1.08rem;margin-bottom:10px}
.sys-point p{font-size:13.5px;color:var(--muted);line-height:1.85}

/* ============================================================
   GEO / OPC 各自独立整屏
   ============================================================ */
.feature{position:relative;overflow:hidden}
.feature .wrap{position:relative;z-index:3}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.feature-grid.rev>.feature-copy{order:2}
.feature-tag{display:inline-flex;align-items:center;gap:9px;font-family:var(--f-mono);font-size:10.5px;
  letter-spacing:.18em;padding:8px 16px;border-radius:100px;margin-bottom:24px;
  background:rgba(255,255,255,.8);border:1px solid var(--line2);box-shadow:var(--sh1)}
.feature-tag i{width:7px;height:7px;border-radius:50%;background:currentColor;flex-shrink:0}
.feature h2{font-size:clamp(1.9rem,3.6vw,3rem);margin-bottom:24px;line-height:1.24}
.feature .lead{font-size:15.5px;color:var(--muted);line-height:2;margin-bottom:30px;max-width:560px}
.feature-list li{display:flex;gap:16px;padding:18px 0;border-top:1px solid var(--line)}
.feature-list li:last-child{border-bottom:1px solid var(--line)}
.feature-list .fl-ic{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;flex-shrink:0;
  background:var(--fc-soft,rgba(255,138,43,.12));color:var(--fc,var(--sun-d))}
.feature-list .fl-ic svg{width:18px;height:18px}
#geoSec .feature-list .fl-ic{--fc:var(--sun-d);--fc-soft:rgba(255,138,43,.12)}
#opcSec .feature-list .fl-ic{--fc:var(--indigo);--fc-soft:rgba(110,89,240,.11)}
/* 独立整屏的锚点占位 */
span[id="geo"],span[id="opc"]{display:block;height:0}
.feature-list h4{font-size:1rem;margin-bottom:6px}
.feature-list p{font-size:13px;color:var(--muted);line-height:1.8}
.feature-cta{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}

/* 视觉面板 */
.feature-vis{position:relative;border-radius:22px;border:1px solid var(--line2);background:var(--bg2);
  box-shadow:var(--sh3);overflow:hidden;padding:30px}
.feature-vis .vh{display:flex;align-items:center;gap:10px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:22px}
.feature-vis .vh b{font-size:12.5px;font-weight:500;color:var(--ink2)}
.feature-vis .vh .mono{font-size:10px;color:var(--dim);margin-left:auto;letter-spacing:.12em}

/* GEO 面板 */
.geo-rows li{display:flex;align-items:center;gap:14px;padding:14px 0;border-top:1px solid var(--line);font-size:12.5px}
.geo-rows li:first-child{border-top:0}
.geo-rows .q{flex:1;color:var(--ink2)}
.geo-rows .bar{width:120px;height:7px;border-radius:100px;background:var(--bg3);overflow:hidden;flex-shrink:0}
.geo-rows .bar i{display:block;height:100%;border-radius:100px;width:0;transition:width 1.4s var(--ease);
  background:linear-gradient(90deg,var(--mint),var(--sky))}
.feature.in .geo-rows .bar i{width:var(--w)}
.geo-rows .pct{font-family:var(--f-mono);font-size:11px;color:var(--muted);width:42px;text-align:right;flex-shrink:0}
.geo-note{font-size:11px;color:var(--dim);margin-top:16px;font-family:var(--f-mono);letter-spacing:.04em;line-height:1.8}
/* 7 大 AI 引擎清单 */
.ai-grid{display:flex;flex-direction:column;gap:9px}
.ai-grid span{display:flex;align-items:center;gap:11px;font-size:13.5px;color:var(--ink2);
  background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:14px 18px;box-shadow:var(--sh1);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.ai-grid span::before{content:'';width:7px;height:7px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--sky),var(--mint))}
.ai-grid span:hover{transform:translateX(4px);box-shadow:var(--sh2)}

/* OPC 面板 */
.opc-stack{display:flex;flex-direction:column;gap:12px}
.opc-card{display:flex;align-items:center;gap:14px;padding:16px 18px;border-radius:14px;
  border:1px solid var(--line);background:#FAFBFF;transition:.35s var(--ease)}
.opc-card:hover{transform:translateX(5px);border-color:rgba(110,89,240,.34);background:#fff;box-shadow:var(--sh2)}
.opc-card .av{width:38px;height:38px;border-radius:12px;flex-shrink:0;display:grid;place-items:center;
  font-family:var(--f-disp);font-weight:900;font-size:15px;color:#fff}
.opc-card h4{font-size:13.5px;margin-bottom:3px}
.opc-card p{font-size:11.5px;color:var(--muted)}
.opc-card .tagx{margin-left:auto;font-family:var(--f-mono);font-size:9.5px;color:var(--indigo);
  background:rgba(110,89,240,.09);padding:4px 10px;border-radius:100px;flex-shrink:0}

/* ============================================================
   3D打印
   ============================================================ */
.print-wrap{display:grid;grid-template-columns:1.02fr .98fr;gap:60px;align-items:center}
.print-art{position:relative;aspect-ratio:1/1;border:1px solid var(--line2);border-radius:22px;overflow:hidden;
  background:linear-gradient(150deg,#F2FBFF,#EAF6F2 60%,#FFF6EC);box-shadow:var(--sh2)}
.print-art svg{position:absolute;inset:0;width:100%;height:100%}
.slice-lines i{position:absolute;left:14%;right:14%;height:1.5px;border-radius:2px;background:var(--mint);
  opacity:0;transform:scaleX(.4);transition:opacity .35s linear,transform .35s var(--ease)}
.print-art.in .slice-lines i{opacity:.55;transform:scaleX(1)}
.print-solid{opacity:0;transform:translateY(30px);transition:opacity 1s var(--ease) .9s,transform 1.1s var(--ease) .9s}
.print-art.in .print-solid{opacity:1;transform:none}
.print-tags{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 32px}
.print-tags span{font-size:13px;color:var(--ink2);background:var(--bg2);border:1px solid var(--line);
  padding:9px 17px;border-radius:100px;box-shadow:var(--sh1);transition:.3s var(--ease)}
.print-tags span:hover{transform:translateY(-3px);border-color:rgba(0,195,158,.4);color:var(--mint-d);box-shadow:var(--sh2)}
.print-params{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:6px}
.print-params div{background:var(--bg2);border:1px solid var(--line);border-radius:14px;padding:18px 20px;box-shadow:var(--sh1)}
.print-params .k{font-size:11px;color:var(--dim);margin-bottom:7px;font-family:var(--f-mono);letter-spacing:.06em}
.print-params .v{font-size:14px;color:var(--ink)}

/* ============================================================
   作品墙
   ============================================================ */
.filters{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:32px}
.filters button{font-size:13.5px;color:var(--muted);cursor:pointer;background:var(--bg2);
  border:1px solid var(--line);padding:10px 21px;border-radius:100px;box-shadow:var(--sh1);transition:.3s var(--ease)}
.filters button:hover{color:var(--sky-d);border-color:rgba(13,140,255,.32);transform:translateY(-2px)}
.filters button.on{background:linear-gradient(135deg,var(--sky),var(--sky-d));color:#fff;border-color:transparent;box-shadow:var(--glow-sky)}
.works-wrap{container-type:inline-size}
.works-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px;grid-auto-flow:dense;
  grid-auto-rows:calc(25cqw - 9px)}
.wk{grid-column:span 2;grid-row:span 1;position:relative;border-radius:18px;overflow:hidden;cursor:pointer;background:var(--bg2);
  border:1px solid var(--line);box-shadow:var(--sh1);
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .4s}
.wk.wide{grid-column:span 4;grid-row:span 2}
.wk.tall{grid-column:span 2;grid-row:span 2}
.wk:hover{transform:translateY(-6px);box-shadow:var(--sh3);border-color:var(--line2)}
.wk-art{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(var(--wkz,1));transition:transform .7s var(--ease)}
.wk:hover .wk-art{transform:scale(calc(var(--wkz,1) * 1.06))}
.wk::after{content:'';position:absolute;inset:0;z-index:1;border-radius:inherit;
  background:linear-gradient(180deg,transparent 30%,rgba(6,14,30,.72) 100%)}
.wk-body{position:absolute;left:0;right:0;bottom:0;padding:22px 24px;z-index:2;color:#fff}
.wk-type{font-family:var(--f-mono);font-size:12px;letter-spacing:.12em;color:rgba(255,255,255,.86);margin-bottom:9px}
.wk-body h3{font-size:1.15rem;margin-bottom:7px;color:#fff}
.wk-body p{font-size:14px;color:rgba(255,255,255,.8);line-height:1.7}
.wk-play{position:absolute;top:50%;left:50%;width:60px;height:60px;margin:-30px 0 0 -30px;border-radius:50%;
  background:rgba(255,255,255,.95);display:grid;place-items:center;z-index:3;opacity:0;transform:scale(.6);
  box-shadow:0 10px 30px rgba(6,14,30,.28);transition:.45s var(--ease)}
.wk:hover .wk-play{opacity:1;transform:scale(1)}
.wk-play::before{content:'';border-left:15px solid var(--sky-d);border-top:9px solid transparent;border-bottom:9px solid transparent;margin-left:5px}
.wk.hide{display:none}
.wk.pop{animation:popIn .55s var(--ease) both}
@keyframes popIn{from{opacity:0;transform:translateY(16px) scale(.97)}to{opacity:1;transform:none}}

/* ============================================================
   为什么是鹏冲
   ============================================================ */
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.why-item{position:relative;background:var(--bg2);border:1px solid var(--line);border-radius:20px;
  padding:44px 40px;display:flex;gap:26px;overflow:hidden;box-shadow:var(--sh1);
  transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s}
.why-item:hover{transform:translateY(-5px);box-shadow:var(--sh3);border-color:var(--line2)}
.why-no{font-family:var(--f-disp);font-weight:900;font-size:clamp(2.4rem,4.6vw,4rem);line-height:.84;flex-shrink:0;
  color:rgba(10,20,40,.09);transition:color .5s var(--ease)}
.why-item:hover .why-no{color:rgba(255,138,43,.34)}
.why-item h3{font-size:1.22rem;margin-bottom:12px}
.why-item p{font-size:13.5px;color:var(--muted);line-height:1.9}

/* 关于我们 */
.about-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.about-card{background:var(--bg2);border:1px solid var(--line);border-radius:16px;padding:24px 26px;box-shadow:var(--sh1);
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s}
.about-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:var(--line2)}
.about-card .ak,.about-scope .ak{font-family:var(--f-mono);font-size:10.5px;color:var(--dim);letter-spacing:.1em;margin-bottom:11px}
.about-card .av2{font-size:14.5px;color:var(--ink);line-height:1.7}
.about-scope{margin-top:18px;background:var(--bg2);border:1px solid var(--line);border-radius:16px;
  padding:26px 28px;box-shadow:var(--sh1)}
.scope-tags{display:flex;flex-direction:column;gap:0}
.scope-grp{display:flex;flex-wrap:wrap;gap:9px;align-items:center;padding:13px 0;border-top:1px dashed var(--line2)}
.scope-grp:first-child{border-top:0;padding-top:0}
.scope-grp:last-child{padding-bottom:0}
.scope-grp>b{font-size:13px;font-weight:700;color:var(--ink);letter-spacing:-.01em;flex:0 0 96px}
.scope-tags span{font-size:13px;color:var(--ink2);background:var(--bg3);border:1px solid var(--line);
  padding:8px 16px;border-radius:100px;transition:.3s var(--ease)}
.scope-grp span:hover{background:#fff;border-color:rgba(255,138,43,.42);color:var(--sun-d);transform:translateY(-2px)}
/* 业务范围按三大板块分组 */
.scope-div{margin:20px 0 12px}
.scope-div:first-child{margin-top:0}
.scope-div+.scope-grp{border-top:0;padding-top:4px}
@media(max-width:720px){.scope-grp>b{flex-basis:100%;margin-bottom:2px}}
@media(max-width:1080px){.about-row{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){.about-row{grid-template-columns:1fr}}

/* 业务范围：三大板块并列成板 */
.scope-board{display:grid;grid-template-columns:1fr 1.35fr 1fr;gap:0}
.scope-col{padding:0 30px;border-left:1px dashed var(--line2)}
.scope-col:first-child{border-left:0;padding-left:0}
.scope-col:last-child{padding-right:0}
.scope-col .scope-div{margin:0 0 14px}
.scope-col .scope-grp{padding:11px 0;border-top:1px dashed var(--line2)}
.scope-col .scope-grp:first-of-type{border-top:0;padding-top:0}
.scope-col .scope-grp:last-child{padding-bottom:0}
@media(max-width:1080px){
  .scope-board{grid-template-columns:1fr 1fr;gap:6px 0}
  .scope-col:nth-child(3){grid-column:1/-1;border-left:0;padding-left:0;border-top:1px dashed var(--line2);margin-top:14px;padding-top:20px}
}
@media(max-width:720px){
  .scope-board{grid-template-columns:1fr}
  .scope-col{padding:0;border-left:0;border-top:1px dashed var(--line2);margin-top:16px;padding-top:16px}
  .scope-col:first-child{border-top:0;margin-top:0;padding-top:0}
}

/* 公司展示画廊 */
.about-gallery{margin-top:18px;background:var(--bg2);border:1px solid var(--line);border-radius:16px;
  padding:26px 28px;box-shadow:var(--sh1)}
.about-gallery .ak{font-family:var(--f-mono);font-size:10.5px;color:var(--dim);letter-spacing:.1em;margin-bottom:14px}
.about-gallery .media-tip{margin-top:0}

/* ============================================================
   合作流程
   ============================================================ */
.flow{position:relative;padding-top:60px}
.flow-line{position:absolute;top:22px;left:0;right:0;height:2px;border-radius:2px;background:var(--line2)}
.flow-fill{position:absolute;top:22px;left:0;height:2px;width:0;border-radius:2px;
  background:linear-gradient(90deg,var(--sky),var(--mint) 60%,var(--sun));transition:width 1.8s var(--ease)}
.flow.in .flow-fill{width:100%}
.flow-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.flow-step{position:relative}
.flow-step .dot{width:13px;height:13px;border-radius:50%;background:var(--bg);border:2px solid var(--line2);
  position:absolute;top:-45px;left:0;transition:.5s var(--ease)}
.flow.in .flow-step .dot{border-color:#fff;background:linear-gradient(135deg,var(--sky),var(--mint));
  box-shadow:0 0 0 5px rgba(13,140,255,.16)}
.flow-step .no{font-family:var(--f-mono);font-size:11px;color:var(--sky-d);letter-spacing:.16em;margin-bottom:14px}
.flow-step h3{font-size:1.05rem;margin-bottom:10px}
.flow-step p{font-size:13px;color:var(--muted);line-height:1.8}
@media(min-width:1081px){
  .flow-steps.six{grid-template-columns:repeat(6,1fr)}
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-wrap{max-width:900px}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-q{width:100%;text-align:left;background:none;border:0;color:var(--ink);cursor:pointer;
  font-size:clamp(15px,1.5vw,17px);font-weight:500;padding:26px 50px 26px 0;position:relative;transition:color .3s}
.faq-q:hover{color:var(--sky-d)}
.faq-q::after{content:'';position:absolute;right:10px;top:50%;width:11px;height:11px;margin-top:-6px;
  border-right:1.5px solid var(--dim);border-bottom:1.5px solid var(--dim);
  transform:rotate(45deg);transition:transform .4s var(--ease),border-color .3s}
.faq-item.open .faq-q::after{transform:rotate(-135deg);border-color:var(--sky)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .45s var(--ease)}
.faq-a p{padding:0 64px 28px 0;font-size:14px;color:var(--muted);line-height:1.95}
.faq-a em{font-style:normal;color:var(--sun-d);font-weight:500}

/* ============================================================
   转化区
   ============================================================ */
.cta-sec{position:relative;overflow:hidden;padding:130px 0;
  background:linear-gradient(160deg,#EAF3FF 0%,#F4F9FF 34%,#FFF6EE 100%)}
.cta-sec .aurora i:nth-child(1){opacity:.4}
.cta-sec .aurora i:nth-child(2){opacity:.36}
.cta-inner{position:relative;z-index:3;display:grid;grid-template-columns:.94fr 1.06fr;gap:70px;align-items:start}
.cta-inner h2{font-size:clamp(1.9rem,3.7vw,3.05rem);margin-bottom:22px}
.cta-inner .lead{font-size:15px;color:var(--muted);line-height:1.95;margin-bottom:34px}
.cta-side .btn-primary{animation:halo 3.4s ease-in-out infinite}
@keyframes halo{0%,100%{box-shadow:var(--glow-sun)}50%{box-shadow:var(--glow-sun),0 0 0 14px rgba(255,138,43,.10)}}
.cta-note{font-family:var(--f-mono);font-size:11px;color:var(--dim);letter-spacing:.05em;margin-top:22px;line-height:2.1}
.form{background:rgba(255,255,255,.86);backdrop-filter:blur(14px);border:1px solid var(--line2);
  border-radius:22px;padding:40px;box-shadow:var(--sh3)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:18px}
.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:9px;font-family:var(--f-mono);letter-spacing:.06em}
.field input,.field select,.field textarea{width:100%;background:#FBFDFF;border:1px solid var(--line2);border-radius:12px;
  color:var(--ink);font-family:var(--f-body);font-size:14px;padding:14px 16px;transition:border-color .3s,box-shadow .3s,background .3s}
.field input::placeholder,.field textarea::placeholder{color:#A9B6CB}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--sky);
  background:#fff;box-shadow:0 0 0 4px rgba(13,140,255,.13)}
.field textarea{resize:vertical;min-height:90px}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px;background-repeat:no-repeat}
.form .btn{width:100%;justify-content:center;margin-top:8px}
.form .fine{font-size:11.5px;color:var(--dim);text-align:center;margin-top:16px;line-height:1.7}

/* 转化区默认态：微信二维码 + 「获取合作方案」按钮（点按钮以弹窗打开表单） */
.lead-intro{background:rgba(255,255,255,.86);backdrop-filter:blur(14px);border:1px solid var(--line2);
  border-radius:22px;padding:40px;box-shadow:var(--sh3);display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:22px;text-align:center}
.lead-form-hidden{display:none!important}
.lead-qr{display:flex;flex-direction:column;align-items:center;gap:12px}
.lead-qr img{width:190px;height:190px;object-fit:contain;background:#fff;border:1px solid var(--line2);
  border-radius:16px;padding:10px;box-shadow:0 14px 34px -16px rgba(10,20,40,.30)}
.lead-qr-cap{font-size:13px;color:var(--muted);letter-spacing:.04em}
.lead-intro .lead-toggle{width:auto;min-width:230px;justify-content:center;animation:halo 3.4s ease-in-out infinite}
.lead-toggle-note{font-size:11.5px;color:var(--dim);line-height:1.7;margin:0}

/* 表单弹窗（点「获取合作方案」后弹出） */
.lead-backdrop{position:fixed;inset:0;background:rgba(9,18,38,.50);backdrop-filter:blur(4px);z-index:950}
form.lead.lead-form--modal{position:fixed;inset:0;margin:auto;z-index:951;transform:none;
  width:min(540px,calc(100vw - 32px));height:fit-content;max-height:90vh;overflow-y:auto;
  padding:38px 40px 40px}
.lead-modal-title{font-size:19px;font-weight:800;color:var(--ink);margin-bottom:20px;padding-right:34px}
.lead-modal-close{position:absolute;top:14px;right:16px;width:36px;height:36px;border:0;border-radius:11px;
  background:transparent;color:var(--muted);font-size:26px;line-height:1;cursor:pointer;transition:.2s;font-family:inherit}
.lead-modal-close:hover{background:var(--bg3);color:var(--ink)}
body.lead-modal-lock{overflow:hidden}

/* ============================================================
   页脚
   ============================================================ */
footer{background:linear-gradient(180deg,var(--bg) 0%,#E9F1FB 100%);border-top:1px solid var(--line);padding:72px 0 34px}
.foot-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px;border-bottom:1px solid var(--line)}
.foot-brand p{font-size:13px;color:var(--muted);line-height:1.9;margin-top:20px;max-width:310px}
.foot-col h4{font-family:var(--f-body);font-size:13px;font-weight:500;color:var(--ink);margin-bottom:18px;letter-spacing:0}
.foot-col li{margin-bottom:11px}
.foot-col a{font-size:13px;color:var(--muted);transition:color .3s}
.foot-col a:hover{color:var(--sky-d)}
.foot-bot{display:flex;justify-content:space-between;gap:20px;padding-top:28px;flex-wrap:wrap}
.foot-bot p{font-family:var(--f-mono);font-size:11px;color:var(--dim);letter-spacing:.05em}
.foot-bot .pc-entry{color:inherit;text-decoration:none;cursor:default}
.foot-bot .pc-entry:hover{color:inherit}
.foot-slogan{font-family:var(--f-disp);font-weight:900;font-size:clamp(1.6rem,4.4vw,3.4rem);line-height:1;padding:34px 0 0;
  background:linear-gradient(100deg,rgba(13,140,255,.30),rgba(0,195,158,.26) 50%,rgba(255,138,43,.26));
  -webkit-background-clip:text;background-clip:text;color:transparent;user-select:none}

/* ============================================================
   内页
   ============================================================ */
.page-hero{position:relative;overflow:hidden;padding:170px 0 90px;
  background:linear-gradient(180deg,#F8FBFF 0%,var(--bg) 100%)}
.page-hero .wrap{position:relative;z-index:3}
.crumb{display:flex;align-items:center;gap:10px;font-family:var(--f-mono);font-size:11px;color:var(--dim);
  letter-spacing:.14em;margin-bottom:26px}
.crumb a:hover{color:var(--sky-d)}
.crumb span{opacity:.5}
.page-hero h1{font-size:clamp(2.1rem,5vw,4.1rem);letter-spacing:-.03em;margin-bottom:26px;max-width:16em}
.page-hero .lead{font-size:clamp(15px,1.5vw,17px);color:var(--muted);line-height:2;max-width:660px}
.page-hero .hero-cta{margin-top:38px;opacity:1;animation:none}
.page-tag{display:inline-flex;align-items:center;gap:9px;font-family:var(--f-mono);font-size:10.5px;letter-spacing:.18em;
  padding:8px 16px;border-radius:100px;margin-bottom:26px;background:rgba(255,255,255,.86);
  border:1px solid var(--line2);box-shadow:var(--sh1)}
.page-tag i{width:7px;height:7px;border-radius:50%;background:var(--acc,var(--sky));flex-shrink:0}

/* 内页强调色 */
.acc-sky{--acc:var(--sky);--acc-d:var(--sky-d);--acc-soft:rgba(13,140,255,.10);--acc-glow:var(--glow-sky)}
.acc-sun{--acc:var(--sun);--acc-d:var(--sun-d);--acc-soft:rgba(255,138,43,.12);--acc-glow:var(--glow-sun)}
.acc-mint{--acc:var(--mint);--acc-d:var(--mint-d);--acc-soft:rgba(0,195,158,.11);--acc-glow:var(--glow-mint)}
.acc-indigo{--acc:var(--indigo);--acc-d:#4B36D8;--acc-soft:rgba(110,89,240,.11);--acc-glow:var(--glow-indigo)}

/* 能力块 */
.blocks{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.blocks.cols2{grid-template-columns:repeat(2,1fr)}
.block{background:var(--bg2);border:1px solid var(--line);border-radius:20px;padding:36px 32px;box-shadow:var(--sh1);
  transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s}
.block:hover{transform:translateY(-6px);box-shadow:var(--sh3);border-color:var(--line2)}
.block .bi{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;margin-bottom:24px;
  background:var(--acc-soft);color:var(--acc-d)}
.block .bi svg{width:22px;height:22px}
.block h3{font-size:1.16rem;margin-bottom:12px}
.block p{font-size:13.5px;color:var(--muted);line-height:1.9}

/* 步骤条 */
.steps-vert{counter-reset:s}
.steps-vert li{position:relative;padding:0 0 34px 62px;counter-increment:s}
.steps-vert li::before{content:counter(s,decimal-leading-zero);position:absolute;left:0;top:0;
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-family:var(--f-mono);font-size:12px;color:#fff;background:linear-gradient(135deg,var(--acc),var(--acc-d))}
.steps-vert li::after{content:'';position:absolute;left:19px;top:46px;bottom:8px;width:1.5px;background:var(--line2)}
.steps-vert li:last-child{padding-bottom:0}
.steps-vert li:last-child::after{display:none}
.steps-vert h4{font-size:1.04rem;margin-bottom:8px}
.steps-vert p{font-size:13.5px;color:var(--muted);line-height:1.9}

/* 参数表 */
.spec{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.spec div{background:var(--bg2);border:1px solid var(--line);border-radius:14px;padding:20px 22px;box-shadow:var(--sh1)}
.spec .k{font-size:11px;color:var(--dim);margin-bottom:8px;font-family:var(--f-mono);letter-spacing:.06em}
.spec .v{font-size:14.5px;color:var(--ink)}

/* 内页底部导航 */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:10px}
.pager a{display:flex;flex-direction:column;gap:8px;background:var(--bg2);border:1px solid var(--line);
  border-radius:18px;padding:28px 30px;box-shadow:var(--sh1);transition:.4s var(--ease)}
.pager a:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:var(--acc)}
.pager .pk{font-family:var(--f-mono);font-size:10px;color:var(--dim);letter-spacing:.16em}
.pager .pt{font-family:var(--f-disp);font-weight:900;font-size:1.2rem}
.pager a:last-child{text-align:right;align-items:flex-end}

/* ============================================================
   响应式
   ============================================================ */
@media(max-width:1080px){
  .hero-inner{grid-template-columns:1fr}
  .rail{display:none}
  .pillars{grid-template-columns:1fr}
  .tiles{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:1fr;gap:44px}
  .feature-grid.rev>.feature-copy{order:0}
  .print-wrap{grid-template-columns:1fr;gap:44px}
  .cta-inner{grid-template-columns:1fr;gap:44px}
  .why-grid{grid-template-columns:1fr}
  .blocks,.blocks.cols2{grid-template-columns:1fr}
  .flow-steps{grid-template-columns:repeat(2,1fr);gap:34px 20px}
  .flow-line,.flow-fill{display:none}
  .flow{padding-top:0}
  .flow-step .dot{position:static;margin-bottom:16px}
  .works-grid{grid-template-columns:repeat(4,1fr);grid-auto-rows:calc(37.5cqw - 6.75px)}
  .wk{grid-column:span 2}
  .wk.wide{grid-column:span 4}
  .dash{grid-template-columns:1fr}
  .dash-side{display:none}
}
@media(max-width:720px){
  .wrap{padding:0 20px}
  .navlinks{display:none}
  .sec{padding:80px 0}
  .stats-grid{grid-template-columns:1fr}
  .sys-points{grid-template-columns:1fr;gap:0}
  .sys-point{padding:22px 0}
  .works-grid{grid-template-columns:1fr;gap:14px;grid-auto-flow:row;grid-auto-rows:auto}
  .wk,.wk.wide,.wk.tall{grid-column:span 1;grid-row:auto;aspect-ratio:4/3}
  .form-row{grid-template-columns:1fr}
  .form{padding:28px 22px}
  .spec{grid-template-columns:1fr}
  .print-params{grid-template-columns:1fr}
  .dash-cards{grid-template-columns:1fr}
  .why-item{padding:32px 24px;gap:18px}
  .pillar{padding:34px 26px 30px}
  .pager{grid-template-columns:1fr}
  .pager a:last-child{text-align:left;align-items:flex-start}
  .foot-top{grid-template-columns:1fr 1fr}
  .scrollhint{display:none}
  .marquee-item{gap:16px;padding:0 16px}
  .page-hero{padding:130px 0 70px}
  .feature-vis{padding:22px}
  /* 中文标题在窄屏避免断在中间、避免标点单独成行 */
  .hero h1{font-size:clamp(1.75rem,7.6vw,2.5rem);line-height:1.26}
  .hero h1 .l span{white-space:nowrap}
  .page-hero h1{font-size:clamp(1.6rem,7.2vw,2.6rem);line-height:1.3}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .rv{opacity:1;transform:none}
  .hero h1 .l span{transform:none}
  .hero-sub,.hero-cta,.rail{opacity:1;animation:none}
  .tilt{transform:none}
  .print-solid{opacity:1;transform:none}
  .rock{opacity:1;transform:none}
}

/* ============================================================
   ============================================================
   升级层（v2）
   1) 导航：首页 / 关于我们
   2) 章节识别：水印编号 + 区块强调色 + 底色节奏 + 深色影院区
   3) 高级特效：光标聚光 / 分字上升 / 章节导轨 / 极光漂浮
   4) 差异化内页页头 .phero（每个板块一套专属视觉）
   ============================================================
   ============================================================ */

/* ---------- 1. 导航 ---------- */
.nav .wrap{gap:22px}
.navlinks{gap:21px;font-size:13.5px}
@media(max-width:1180px){
  .navlinks{gap:16px;font-size:13px}
  .navlinks a.opt{display:none}
}
@media(max-width:900px){
  .nav .btn{padding:10px 16px;font-size:13px}
  .logo img{height:30px}
  .navlinks{gap:13px;font-size:12.5px}
  .navlinks a.opt2{display:none}
}
@media(max-width:720px){
  .nav .wrap{gap:12px}
  .navlinks a.opt,.navlinks a.opt2{display:inline-block}
  .navlinks{display:flex;overflow-x:auto;gap:15px;font-size:13px;margin-left:6px;
    -ms-overflow-style:none;scrollbar-width:none;-webkit-overflow-scrolling:touch;
    mask-image:linear-gradient(90deg,#000 84%,transparent);
    -webkit-mask-image:linear-gradient(90deg,#000 84%,transparent)}
  .navlinks::-webkit-scrollbar{display:none}
  .nav .btn{display:none}
}

/* ---------- 2. 章节识别 ---------- */
/* 区块强调色（由 .s-xxx 提供 --sc 系列变量） */
.s-sky{--sc:var(--sky);--sc-ink:var(--sky-d);--sc-soft:rgba(13,140,255,.10);
  --sc-line:rgba(13,140,255,.24);--sp:rgba(13,140,255,.13)}
.s-mint{--sc:var(--mint);--sc-ink:var(--mint-d);--sc-soft:rgba(0,195,158,.11);
  --sc-line:rgba(0,195,158,.24);--sp:rgba(0,195,158,.12)}
.s-sun{--sc:var(--sun);--sc-ink:var(--sun-d);--sc-soft:rgba(255,138,43,.12);
  --sc-line:rgba(255,138,43,.26);--sp:rgba(255,138,43,.14)}
.s-indigo{--sc:var(--indigo);--sc-ink:#4B36D8;--sc-soft:rgba(110,89,240,.11);
  --sc-line:rgba(110,89,240,.24);--sp:rgba(110,89,240,.13)}

/* 区块顶边彩色细线 */
.sec::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;z-index:4;pointer-events:none;
  background:linear-gradient(90deg,transparent 4%,var(--sc,var(--sky)) 50%,transparent 96%);opacity:.42}
.sec>.wrap{position:relative;z-index:2}

/* 角部柔光：让每个区块自带色温 */
.sec-band::after{content:'';position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(64% 48% at 100% 0%,var(--sc-soft,transparent),transparent 62%),
    radial-gradient(56% 44% at 0% 100%,var(--sc-soft,transparent),transparent 62%)}

/* 超大描边水印编号 */
.sec-num{position:absolute;top:54px;right:0;z-index:1;pointer-events:none;user-select:none;
  font-family:var(--f-disp);font-weight:900;font-size:clamp(5.4rem,12.5vw,12rem);line-height:.76;
  letter-spacing:-.05em;color:transparent;
  -webkit-text-stroke:1.5px var(--sc-line,rgba(10,20,40,.10));
  opacity:.85}
.sec-tint .sec-num,.sec-warm .sec-num,.sec-band .sec-num{opacity:1}

/* 章节标签：从纯文字改为彩色徽标（内页沿用页面主色） */
.shead .tc{display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:100px;
  letter-spacing:.18em;margin-bottom:22px;color:var(--sc-ink,var(--acc-d,var(--sky-d)));
  background:var(--sc-soft,var(--acc-soft,rgba(13,140,255,.09)));
  border:1px solid var(--sc-line,var(--acc-soft,rgba(13,140,255,.24)))}
.shead .tc::before{content:'';width:6px;height:6px;border-radius:50%;flex-shrink:0;
  background:var(--sc,var(--acc,var(--sky)));
  box-shadow:0 0 0 4px var(--sc-soft,var(--acc-soft,transparent))}

/* 深色「影院」区：作品墙 */
.sec-dark{background:linear-gradient(180deg,#0A1730 0%,#0E2140 46%,#0A1830 100%);color:#DCE7F7}
.sec-dark::before{opacity:.9}
.sec-dark .sec-num{-webkit-text-stroke-color:rgba(255,255,255,.12);opacity:1}
.sec-dark .shead .tc{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.18);color:#A8CBFF}
.sec-dark .shead .tc::before{background:var(--sky);box-shadow:0 0 0 4px rgba(255,255,255,.06)}
.sec-dark h2,.sec-dark h3,.sec-dark h4{color:#fff}
.sec-dark .shead p{color:#93A9C8}
.sec-dark .tbd{color:#7E93B4;border-color:#46597A}
.sec-dark .tbd-note{color:#7E93B4}
.sec-dark .filters button{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.16);color:#A9BDD8}
.sec-dark .filters button:hover{color:#fff;border-color:rgba(255,255,255,.34)}
.sec-dark .filters button.on{background:linear-gradient(135deg,var(--sky),var(--sky-d));color:#fff;border-color:transparent}
.sec-dark .wk{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.13)}
.sec-dark .wk:hover{border-color:rgba(255,255,255,.34);box-shadow:0 32px 70px -18px rgba(0,0,0,.6)}
.sec-dark .wk-body p{color:rgba(255,255,255,.72)}
.sec-dark .pager a{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.14)}
.sec-dark .pager .pt{color:#fff}

/* ---------- 3. 高级特效 ---------- */
/* 光标聚光：跟随鼠标的柔光 */
.spot{background-image:radial-gradient(300px circle at var(--mx,50%) var(--my,0%),var(--sp,rgba(13,140,255,.13)),transparent 62%);
  background-repeat:no-repeat;background-position:0 0;transition:background-image .3s linear}

/* 标题分字上升（默认可见，位于 .rv 内且未入场时隐藏） */
.h2m{display:block;overflow:hidden;padding:.12em 0;margin:-.12em 0}
.h2m>.ch{display:inline-block;transition:transform .9s var(--ease),opacity .6s var(--ease)}
.rv:not(.in) .h2m>.ch{transform:translateY(112%);opacity:0}

/* 章节导轨（宽屏才出现，避免压住内容） */
.chapter{position:fixed;right:20px;top:50%;transform:translateY(-50%);z-index:880;
  display:flex;flex-direction:column;align-items:flex-end;gap:13px}
.chapter a{display:flex;align-items:center;gap:9px;opacity:.7;transition:opacity .35s var(--ease)}
.chapter .lbl{font-family:var(--f-body);font-size:11px;color:var(--ink2);white-space:nowrap;
  background:rgba(255,255,255,.9);border:1px solid var(--line);padding:3px 10px;border-radius:100px;
  box-shadow:var(--sh1);opacity:0;transform:translateX(10px);transition:.4s var(--ease)}
.chapter i{width:8px;height:8px;border-radius:50%;background:var(--line2);flex-shrink:0;transition:.4s var(--ease)}
.chapter a:hover{opacity:1}
.chapter a:hover .lbl{opacity:1;transform:none}
.chapter a.on{opacity:1}
.chapter a.on .lbl{opacity:1;transform:none;border-color:var(--line2)}
.chapter a.on i{width:10px;height:10px;background:linear-gradient(135deg,var(--sky),var(--mint));
  box-shadow:0 0 0 4px rgba(13,140,255,.16)}
@media(max-width:1439px){.chapter{display:none}}

/* 板块显隐（后台勾选控制）：隐藏时整块不占位，导轨里也不会出现该项 */
.sec-off{display:none!important}

/* 极光漂浮 */
@keyframes auroraFloat{
  0%,100%{transform:translate3d(0,0,0) scale(1)}
  33%{transform:translate3d(32px,-26px,0) scale(1.07)}
  66%{transform:translate3d(-26px,22px,0) scale(.95)}
}
.aurora i{animation:auroraFloat 22s ease-in-out infinite}
.aurora i:nth-child(2){animation-duration:27s;animation-delay:-7s}
.aurora i:nth-child(3){animation-duration:32s;animation-delay:-14s}

/* 首屏滚动提示加一层光晕 */
.scrollhint::after{content:'';position:absolute;left:-62px;bottom:-40px;width:150px;height:150px;border-radius:50%;
  pointer-events:none;background:radial-gradient(circle,rgba(13,140,255,.16),transparent 66%);filter:blur(6px)}

/* ---------- 4. 差异化内页页头 .phero ---------- */
.phero{position:relative;overflow:hidden;padding:156px 0 96px;
  background:linear-gradient(180deg,#F8FBFF 0%,var(--bg) 100%)}
.phero .wrap{position:relative;z-index:3}
.phero-grid{position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.85;
  background-image:
    linear-gradient(var(--acc-grid,rgba(13,140,255,.09)) 1px,transparent 1px),
    linear-gradient(90deg,var(--acc-grid,rgba(13,140,255,.09)) 1px,transparent 1px);
  background-size:58px 58px;
  mask-image:radial-gradient(118% 82% at 50% 0%,#000 20%,transparent 76%);
  -webkit-mask-image:radial-gradient(118% 82% at 50% 0%,#000 20%,transparent 76%)}
.phero::before{content:'';position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(56% 54% at 90% 10%,var(--acc-soft,transparent),transparent 66%),
    radial-gradient(50% 46% at 4% 90%,var(--acc-soft,transparent),transparent 66%)}
.phero::after{content:'';position:absolute;right:-10%;top:-16%;width:52vw;height:52vw;
  max-width:700px;max-height:700px;border-radius:50%;z-index:0;pointer-events:none;filter:blur(26px);
  background:radial-gradient(circle,var(--acc-soft,transparent),transparent 62%)}
.acc-sky{--acc-grid:rgba(13,140,255,.10)}
.acc-sun{--acc-grid:rgba(255,138,43,.11)}
.acc-mint{--acc-grid:rgba(0,195,158,.10)}
.acc-indigo{--acc-grid:rgba(110,89,240,.10)}

.phero-kick{display:inline-flex;align-items:center;gap:9px;font-family:var(--f-mono);font-size:10.5px;
  letter-spacing:.18em;padding:8px 16px;border-radius:100px;margin-bottom:26px;color:var(--acc-d,var(--sky-d));
  background:rgba(255,255,255,.86);border:1px solid var(--line2);box-shadow:var(--sh1)}
.phero-kick i{width:7px;height:7px;border-radius:50%;background:var(--acc,var(--sky));flex-shrink:0;
  animation:pulse 2.6s ease-in-out infinite}
.phero h1{font-size:clamp(2.3rem,5.3vw,4.4rem);letter-spacing:-.035em;margin-bottom:20px}
.phero h1 em{font-style:normal;
  background:linear-gradient(100deg,var(--acc,var(--sky)),var(--acc-d,var(--sky-d)));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.phero-sub{font-family:var(--f-disp);font-weight:900;font-size:clamp(1.05rem,2.1vw,1.72rem);
  line-height:1.42;color:var(--ink2);margin-bottom:22px}
.phero-lead{font-size:clamp(14.5px,1.45vw,16.5px);color:var(--muted);line-height:2;max-width:620px}
.phero-lead b{color:var(--ink);font-weight:500}
.phero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:38px}
.phero-2col{display:grid;grid-template-columns:1.02fr .98fr;gap:62px;align-items:center}
.phero-2col.rev>.pvis{order:0}
.phero-2col.rev>.ptxt{order:2}
.phero-center{max-width:900px;margin:0 auto;text-align:center}
.phero-center .phero-lead{margin:0 auto}
.phero-center .phero-cta{justify-content:center}
.phero-center .phero-badges{justify-content:center}
.pvis{position:relative}
.phero .crumb{margin-bottom:24px}

/* (a) AI视频 —— 四格分镜切换 */
.mstage{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.mscard{position:relative;margin:0;border-radius:16px;overflow:hidden;background:var(--bg2);
  border:1px solid var(--line2);box-shadow:var(--sh1);animation:msGlow 8s ease-in-out infinite}
.mscard:nth-child(1){animation-delay:0s}
.mscard:nth-child(2){animation-delay:2s}
.mscard:nth-child(3){animation-delay:4s}
.mscard:nth-child(4){animation-delay:6s}
@keyframes msGlow{
  0%,74%,100%{box-shadow:var(--sh1);border-color:var(--line2);transform:none}
  82%,92%{box-shadow:0 14px 38px rgba(13,140,255,.26);border-color:rgba(13,140,255,.46);transform:translateY(-3px)}
}
.mstage .mscard:nth-child(2) .msstop{color:var(--indigo)}
.mscard .msstop{position:absolute;top:9px;left:9px;z-index:3;font-family:var(--f-mono);font-size:9px;
  letter-spacing:.12em;padding:4px 9px;border-radius:100px;color:var(--ink2);
  background:rgba(255,255,255,.9);border:1px solid var(--line2)}
.mscard svg{display:block;width:100%;height:auto}

/* (b) AI系统 —— 终端 */
.term{border-radius:18px;overflow:hidden;border:1px solid rgba(10,20,40,.5);background:#0B1730;
  box-shadow:0 32px 74px -24px rgba(12,45,90,.55);font-family:var(--f-mono)}
.term-bar{display:flex;align-items:center;gap:7px;padding:12px 16px;
  background:rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.09)}
.term-bar .d{width:10px;height:10px;border-radius:50%;background:#FF5F57}
.term-bar .d:nth-child(2){background:#FEBC2E}
.term-bar .d:nth-child(3){background:#28C840}
.term-bar b{font-family:var(--f-body);font-weight:500;font-size:11.5px;color:#8FB2DC;margin-left:6px}
.term-body{padding:20px 22px 24px;font-size:12.5px;line-height:2.15;color:#B9D3F5;min-height:250px}
.term-body .ln{display:flex;gap:10px;opacity:0;transform:translateY(7px);
  animation:termIn .55s var(--ease) forwards}
.term-body .ln:nth-child(1){animation-delay:.30s}
.term-body .ln:nth-child(2){animation-delay:.70s}
.term-body .ln:nth-child(3){animation-delay:1.10s}
.term-body .ln:nth-child(4){animation-delay:1.50s}
.term-body .ln:nth-child(5){animation-delay:1.90s}
.term-body .ln:nth-child(6){animation-delay:2.30s}
.term-body .ln:nth-child(7){animation-delay:2.70s}
@keyframes termIn{to{opacity:1;transform:none}}
.term-body .pr{color:var(--mint);flex-shrink:0}
.term-body .cm{color:#EAF2FF}
.term-body .ok{color:#6EE7B7}
.term-body .wn{color:#FFC078}
.term-body .dim{color:#6E88AC}
.term-body .cur{display:inline-block;width:8px;height:15px;background:var(--mint);vertical-align:-2px;
  animation:blink 1.05s steps(1,end) infinite}
@keyframes blink{0%,49%{opacity:1}50%,100%{opacity:0}}

/* (c) GEO —— 对话模拟 */
.chat{display:flex;flex-direction:column;gap:14px}
.bub{max-width:86%;padding:14px 18px;border-radius:16px;font-size:13.5px;line-height:1.85;
  opacity:0;transform:translateY(12px);animation:bubIn .62s var(--ease) forwards}
.bub:nth-child(1){animation-delay:.35s}
.bub:nth-child(2){animation-delay:1.00s}
.bub:nth-child(3){animation-delay:1.70s}
.bub:nth-child(4){animation-delay:2.40s}
@keyframes bubIn{to{opacity:1;transform:none}}
.bub.me{align-self:flex-end;border-bottom-right-radius:5px;color:#fff;
  background:linear-gradient(135deg,var(--acc,var(--sun)),var(--acc-d,var(--sun-d)));
  box-shadow:0 12px 30px rgba(236,98,8,.26)}
.bub.ai{align-self:flex-start;border-bottom-left-radius:5px;color:var(--ink2);
  background:#fff;border:1px solid var(--line2);box-shadow:var(--sh1)}
.bub.ai mark{background:rgba(255,138,43,.20);color:var(--sun-d);padding:1px 6px;border-radius:5px;font-weight:500}
.bub .who{display:block;font-family:var(--f-mono);font-size:9.5px;letter-spacing:.14em;
  opacity:.72;margin-bottom:7px}
.bub.ai .who{color:var(--dim)}
.chat-note{font-family:var(--f-mono);font-size:10.5px;color:var(--dim);letter-spacing:.04em;
  margin-top:18px;line-height:1.9}
.chat-center{max-width:620px;margin:52px auto 0}

/* (d) OPC —— 节点网络 */
.net{border-radius:20px;border:1px solid var(--line2);background:#fff;box-shadow:var(--sh3);
  padding:18px;overflow:hidden}
.net svg{display:block;width:100%;height:auto}
.net .lk{stroke:rgba(110,89,240,.34);stroke-width:1.3;stroke-dasharray:5 6;animation:dash 3.6s linear infinite}
@keyframes dash{to{stroke-dashoffset:-22}}
.net .nd{fill:#fff;stroke:rgba(110,89,240,.5);stroke-width:1.5;
  transform-box:fill-box;transform-origin:center;animation:ndPulse 4.2s ease-in-out infinite}
.net .nd:nth-child(2){animation-delay:.3s}
.net .nd:nth-child(3){animation-delay:.6s}
.net .nd:nth-child(4){animation-delay:.9s}
.net .nd:nth-child(5){animation-delay:1.2s}
.net .nd:nth-child(6){animation-delay:1.5s}
.net .nd:nth-child(7){animation-delay:1.8s}
@keyframes ndPulse{0%,100%{opacity:.85}50%{opacity:.42}}
.net .core{fill:url(#gNet);stroke:none}
.net .ring{fill:none;stroke:rgba(110,89,240,.28);stroke-width:1.2;
  transform-box:fill-box;transform-origin:center;animation:ringPulse 3.4s ease-out infinite}
@keyframes ringPulse{0%{transform:scale(.7);opacity:.9}100%{transform:scale(1.5);opacity:0}}
.net .nlbl{font-family:'Noto Sans SC',sans-serif;font-size:11px;fill:#5D6E8A}
.net .nlbl.core-lbl{fill:#fff;font-weight:500;font-size:12px}
.net-note{font-family:var(--f-mono);font-size:10.5px;color:var(--dim);letter-spacing:.04em;
  margin-top:16px;text-align:center;line-height:1.9}

/* (e) 3D打印 —— 层叠带 */
.layerband{position:relative;border-radius:20px;border:1px solid var(--line2);overflow:hidden;
  background:linear-gradient(150deg,#F2FBFF,#EAF6F2 58%,#FFF6EC);box-shadow:var(--sh3)}
.layerband svg{display:block;width:100%;height:auto}
.lb-l{opacity:0;transform:translateY(16px);animation:lbIn .8s var(--ease) forwards}
@keyframes lbIn{to{opacity:1;transform:none}}
.phero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
.phero-badges span{font-size:12.5px;color:var(--ink2);background:rgba(255,255,255,.86);
  border:1px solid var(--line2);padding:8px 15px;border-radius:100px;box-shadow:var(--sh1);
  transition:.3s var(--ease)}
.phero-badges span:hover{transform:translateY(-3px);color:var(--mint-d);
  border-color:rgba(0,195,158,.42);box-shadow:var(--sh2)}

/* ---------- 5. 升级层的响应式 ---------- */
@media(max-width:1080px){
  .phero{padding:132px 0 78px}
  .phero-2col,.phero-2col.rev{grid-template-columns:1fr;gap:46px}
  .phero-2col.rev>.pvis{order:0}
  .phero-2col.rev>.ptxt{order:1}
  .sec-num{top:44px}
}
@media(max-width:720px){
  .phero{padding:118px 0 66px}
  .phero h1{font-size:clamp(1.95rem,8.4vw,2.7rem);line-height:1.24}
  .phero-sub{font-size:1rem}
  .sec-num{font-size:4.6rem;top:36px;opacity:.6}
  .mstage{grid-template-columns:1fr 1fr;gap:10px}
  .term-body{font-size:11.5px;min-height:210px;padding:16px 16px 20px}
  .bub{max-width:94%;font-size:13px}
  .net{padding:10px}
  .phero-lead{font-size:14.5px}
}
@media(prefers-reduced-motion:reduce){
  .h2m>.ch{transform:none!important;opacity:1!important}
  .aurora i{animation:none}
  .mscard{animation:none}
  .term-body .ln,.bub{opacity:1;transform:none;animation:none}
  .lb-l{opacity:1;transform:none;animation:none}
  .net .lk,.net .nd,.net .ring,.term-body .cur,.phero-kick i{animation:none}
}

/* ============================================================
   ============================================================
   升级层（v3）
   1) 首屏支持图片 / 视频背景
   2) 案例墙（works.html 页头 3D 案例带）
   3) 业务矩阵（about.html 页头）
   4) 背景音乐开关
   ============================================================
   ============================================================ */

/* ---------- 1. 首屏媒体背景 ---------- */
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.hero-bg img,.hero-bg video{width:100%;height:100%;object-fit:cover;display:block;
  animation:kbDrift 24s ease-in-out infinite alternate}
@keyframes kbDrift{from{transform:scale(1.06) translate3d(0,0,0)}
  to{transform:scale(1.14) translate3d(-1.6%,-1.2%,0)}}
.hero-bg::after{content:'';position:absolute;inset:0;opacity:var(--hero-mask,1);transition:opacity .35s var(--ease);
  background:
    linear-gradient(90deg,rgba(248,251,255,.98) 0%,rgba(248,251,255,.93) 34%,rgba(248,251,255,.55) 64%,rgba(248,251,255,.34) 100%),
    linear-gradient(180deg,rgba(248,251,255,.62) 0%,rgba(248,251,255,.10) 34%,rgba(244,247,252,.86) 100%)}
.hero.has-bg #heroCanvas{display:none}
.hero.has-bg .blueprint{opacity:.28}

/* 轮播：每个媒体是一层叠加的 slide，靠 .on 交叉切换 */
.hero-bg .hero-slide{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;
  opacity:0;transition:opacity .9s var(--ease),transform .9s var(--ease);will-change:opacity}
.hero-bg .hero-slide.on{opacity:1}
.hero-bg.t-slide .hero-slide{animation:none;transform:translateX(3%)}
.hero-bg.t-slide .hero-slide.on{transform:none}
.hero-bg.t-none .hero-slide{transition:none}

/* 视频右下角的声音开关（只在有视频时出现） */
.hero-sound{display:none;position:absolute;right:26px;bottom:26px;z-index:5;width:46px;height:46px;padding:0;
  border-radius:50%;cursor:pointer;color:#fff;border:1px solid rgba(255,255,255,.55);
  background:rgba(17,24,39,.42);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  align-items:center;justify-content:center;transition:background .25s,transform .25s}
.hero.has-video .hero-sound{display:flex}
.hero-sound:hover{background:rgba(17,24,39,.66)}
.hero-sound:active{transform:scale(.94)}
.hero-sound svg{width:21px;height:21px;display:block;pointer-events:none}
@media(max-width:720px){.hero-sound{right:16px;bottom:16px;width:40px;height:40px}}

/* 轮播手动控制（后台可开关）：圆点居中，左右箭头分列两侧，整行居中 */
.hero-ctl{position:absolute;left:50%;bottom:46px;transform:translateX(-50%);z-index:5;
  display:none;align-items:center;gap:14px}
.hero-ctl.show{display:flex}
.hero-arrow{flex-shrink:0;width:46px;height:46px;padding:0;border-radius:50%;cursor:pointer;color:#fff;
  border:1px solid rgba(255,255,255,.55);background:rgba(17,24,39,.42);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  display:grid;place-items:center;transition:background .25s,transform .25s}
.hero-arrow:hover{background:rgba(17,24,39,.66)}
.hero-arrow:active{transform:scale(.94)}
.hero-arrow svg{width:20px;height:20px;display:block;pointer-events:none}
.hero-dots{display:flex;gap:12px;align-items:center;padding:10px 16px;border-radius:100px;
  background:rgba(17,24,39,.42);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.4)}
.hero-dot{width:26px;height:8px;padding:0;border:0;border-radius:100px;cursor:pointer;
  background:rgba(255,255,255,.42);transition:width .3s var(--ease),background .25s var(--ease)}
.hero-dot:hover{background:rgba(255,255,255,.72)}
.hero-dot.on{width:40px;background:#fff}
@media(max-width:720px){
  .hero-ctl{gap:10px;bottom:60px}
  .hero-arrow{width:38px;height:38px}
  .hero-dot{width:20px}
  .hero-dot.on{width:30px}
}

/* ---------- 2. 案例墙 ---------- */
.wall3d{position:relative;margin-top:56px;padding:14px 0 4px;overflow:hidden;
  mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
  perspective:1400px}
.wall-track{display:flex;gap:16px;width:max-content;
  transform:rotateX(11deg) rotateZ(-1.3deg);
  animation:wallScroll 52s linear infinite}
.wall3d:hover .wall-track{animation-play-state:paused}
@keyframes wallScroll{
  from{transform:rotateX(11deg) rotateZ(-1.3deg) translateX(0)}
  to{transform:rotateX(11deg) rotateZ(-1.3deg) translateX(-50%)}
}
.wtile{position:relative;width:302px;height:190px;flex-shrink:0;border-radius:16px;overflow:hidden;
  background-size:cover;background-position:center;
  border:1px solid var(--line2);box-shadow:0 22px 46px -20px rgba(10,20,40,.42);
  display:flex;flex-direction:column;justify-content:flex-end;gap:5px;padding:16px 18px;
  color:#fff;transition:box-shadow .4s var(--ease)}
.wtile:hover{box-shadow:0 30px 62px -20px rgba(10,20,40,.55)}
.wtile b{font-size:14.5px;font-weight:700;letter-spacing:-.01em;
  text-shadow:0 2px 10px rgba(0,0,0,.5)}
.wtile span{font-family:var(--f-mono);font-size:9.5px;letter-spacing:.15em;opacity:.92;
  text-shadow:0 2px 10px rgba(0,0,0,.55)}
.wtile::after{content:'';position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(6,14,28,.06) 34%,rgba(6,14,28,.66))}
.wtile>*{position:relative;z-index:2}
.wall-note{font-family:var(--f-mono);font-size:10.5px;color:var(--dim);letter-spacing:.04em;
  margin-top:22px;text-align:center;line-height:1.9}

/* ---------- 3. 业务矩阵 ---------- */
.matrix8{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.mcell{position:relative;display:flex;flex-direction:column;gap:9px;padding:17px 18px 18px 22px;
  border-radius:15px;background:var(--bg2);border:1px solid var(--line2);box-shadow:var(--sh1);
  opacity:0;scale:.93;animation:mcellIn .72s var(--ease) forwards;
  transition:translate .38s var(--ease),border-color .38s var(--ease),box-shadow .38s var(--ease)}
.mcell:hover{translate:0 -4px;border-color:rgba(0,195,158,.5);box-shadow:var(--sh3)}
@keyframes mcellIn{to{opacity:1;scale:1}}
.mcell i{font-style:normal;font-family:var(--f-mono);font-size:10px;letter-spacing:.15em;color:var(--dim)}
.mcell b{font-size:13.5px;font-weight:700;color:var(--ink);letter-spacing:-.01em;line-height:1.4}
.mcell::before{content:'';position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--sky),var(--mint))}
.mcell:nth-child(2n)::before{background:linear-gradient(180deg,var(--sun),var(--indigo))}
.matrix-note{font-family:var(--f-mono);font-size:10.5px;color:var(--dim);letter-spacing:.04em;
  margin-top:16px;text-align:center;line-height:1.9}

/* 矩阵按三大板块分组 */
.matrix-groups{display:flex;flex-direction:column;gap:24px}
.matrix8.solo{grid-template-columns:1fr}
.mgrp-h{margin-bottom:16px}

/* ---------- 4. 背景音乐开关 ---------- */
.music-btn{position:fixed;right:20px;bottom:22px;z-index:900;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line2);background:rgba(255,255,255,.93);backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);box-shadow:var(--sh2);cursor:pointer;
  display:flex;align-items:center;justify-content:center;color:var(--ink2);
  transition:.35s var(--ease)}
.music-btn:hover{transform:translateY(-3px);border-color:var(--sky);color:var(--sky-d)}
.music-btn svg{width:19px;height:19px}
.music-btn.on{background:linear-gradient(135deg,var(--sky),var(--mint));border-color:transparent;color:#fff;
  box-shadow:0 14px 32px -8px rgba(13,140,255,.6)}
.music-btn .bars{display:flex;align-items:flex-end;gap:2.5px;height:15px}
.music-btn .bars i{display:block;width:2.5px;border-radius:2px;background:currentColor;
  animation:eqBounce 1.05s ease-in-out infinite}
.music-btn .bars i:nth-child(1){height:7px;animation-delay:0s}
.music-btn .bars i:nth-child(2){height:14px;animation-delay:.16s}
.music-btn .bars i:nth-child(3){height:9px;animation-delay:.32s}
.music-btn .bars i:nth-child(4){height:12px;animation-delay:.48s}
@keyframes eqBounce{0%,100%{transform:scaleY(.42)}50%{transform:scaleY(1)}}
@media(max-width:720px){
  .music-btn{right:14px;bottom:14px;width:42px;height:42px}
  .wall3d{perspective:900px;margin-top:40px}
  .wtile{width:224px;height:144px;border-radius:13px;padding:13px 14px}
  .wtile b{font-size:13px}
  .matrix8{gap:9px}
  .mcell{padding:14px 14px 15px 18px}
  .mcell b{font-size:12.5px}
}
@media(prefers-reduced-motion:reduce){
  .wall-track,.hero-bg img,.hero-bg video{animation:none}
  .mcell{opacity:1;scale:1;animation:none}
  .music-btn .bars i{animation:none}
}

/* ============================================================
   板块区分强化：让每一块的分界和标题一眼看得见
   ============================================================ */
/* 1) 板块分界：顶部色带加粗提亮（原来是 42% 的极浅一道） */
.sec::before{height:4px;opacity:.8}
/* 2) 相邻板块底色拉开对比：有色区段覆盖面更大 */
.sec-tint{background:linear-gradient(180deg,var(--bg) 0%,var(--bg3) 6%,var(--bg3) 94%,var(--bg) 100%)}
.sec-warm{background:linear-gradient(180deg,var(--bg) 0%,var(--warm) 6%,var(--warm) 94%,var(--bg) 100%)}
/* 没有 tint/warm 的色带区块，也各染上自己的主色（每块颜色不同，一眼分得开） */
.sec-band:not(.sec-tint):not(.sec-warm){
  background:linear-gradient(180deg,rgba(255,255,255,0) 0%,var(--sc-soft,rgba(13,140,255,.10)) 16%,
    var(--sc-soft,rgba(13,140,255,.10)) 84%,rgba(255,255,255,0) 100%),
    linear-gradient(180deg,rgba(255,255,255,0) 0%,var(--sc-soft,rgba(13,140,255,.10)) 16%,
    var(--sc-soft,rgba(13,140,255,.10)) 84%,rgba(255,255,255,0) 100%),
    var(--bg)}
/* 3) 标题：短杠 + 实心彩色徽标 + 更大字号，一眼看清"这一块在讲什么" */
.shead::before{content:'';display:block;width:56px;height:5px;border-radius:6px;margin-bottom:20px;
  background:linear-gradient(90deg,var(--sc,var(--sky)),rgba(13,140,255,0))}
.shead h2{font-size:clamp(2.3rem,4.8vw,4rem);line-height:1.14;letter-spacing:-.028em}
.shead .tc{font-size:13px;font-weight:700;padding:10px 22px;margin-bottom:24px;letter-spacing:.16em;
  color:#fff;border-color:transparent;
  background:linear-gradient(135deg,var(--sc,var(--sky)),var(--sc-ink,var(--sky-d)));
  box-shadow:0 10px 24px -10px var(--sc,var(--sky))}
.shead .tc::before{width:7px;height:7px;background:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.28)}

/* ============================================================
   信息卡配图位（卡片顶部横幅）
   没配图时露出品牌底纹，不会出现"破图"图标
   ============================================================ */
.block .bimg{display:block;position:relative;height:150px;margin:-36px -32px 24px;
  border-radius:20px 20px 0 0;overflow:hidden;background-size:cover;background-position:center;
  background-image:linear-gradient(135deg,#D9EAFF 0%,#E2F7EE 52%,#FFEEDC 100%)}
.block .bimg i{position:absolute;inset:0;opacity:.7;pointer-events:none;
  background-image:radial-gradient(120% 90% at 8% 0%,rgba(13,140,255,.30),transparent 62%),
                   radial-gradient(110% 90% at 100% 100%,rgba(0,195,158,.26),transparent 64%),
                   linear-gradient(0deg,rgba(255,255,255,.72) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.72) 1px,transparent 1px);
  background-size:auto,auto,26px 26px,26px 26px}
.block .bimg.has-img i{display:none}

/* 首页「五件事」业务卡：可选配图。有图才显示顶部横幅，无图完全维持原样 */
.pillar .bimg{display:none}
.pillar .bimg.has-img{display:block;position:relative;height:150px;margin:-42px -38px 26px;
  border-radius:21px 21px 0 0;overflow:hidden;background-size:cover;background-position:center}
.pillar .bimg i{display:none}

/* ============================================================
   返回顶部（固定右下角，避开音乐按钮）
   ============================================================ */
.toTop{position:fixed;right:20px;bottom:80px;z-index:900;width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;cursor:pointer;padding:0;
  border:1px solid var(--line2);background:rgba(255,255,255,.93);backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);box-shadow:var(--sh2);color:var(--ink2);
  opacity:0;visibility:hidden;transform:translateY(10px);pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s,
             background .35s var(--ease),color .35s var(--ease)}
.toTop svg{width:20px;height:20px}
.toTop.show{opacity:1;visibility:visible;transform:none;pointer-events:auto}
.toTop:hover{background:linear-gradient(135deg,var(--sky),var(--mint));border-color:transparent;color:#fff;
  box-shadow:0 14px 32px -8px rgba(13,140,255,.6)}
@media(max-width:720px){.toTop{right:14px;bottom:70px;width:42px;height:42px}}

/* ============================================================
   媒体位 / 案例板块 / 版块排序（通用组件）
   ============================================================ */

/* 空案例板块整块隐藏（由 app.js 打 .sec-empty） */
.sec-empty{display:none!important}

/* ---------- 媒体位 ----------
   画廊：无内容时整块隐藏（旁边 .media-tip 提示照常显示）；
   轮播 / 单媒体槽：无内容时显示其内部自带的兜底内容（.mstage / SVG）。 */
.media-grid:not(.has-media){display:none}
.media-grid.has-media{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.mg-item{position:relative;margin:0;border-radius:16px;overflow:hidden;background:var(--bg2);
  border:1px solid var(--line);box-shadow:var(--sh1)}
.mg-item img,.mg-item video{display:block;width:100%;height:100%;object-fit:cover}
.media-grid .mg-item{aspect-ratio:4/3}
.mg-item figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px 16px;font-size:12.5px;color:#fff;
  background:linear-gradient(180deg,transparent,rgba(6,14,30,.72))}
.media-tip{margin-top:14px;font-size:12.5px;color:var(--dim);text-align:center;padding:26px 16px;
  border:1px dashed var(--line2);border-radius:14px}
.media-grid.has-media~.media-tip{display:none}

/* ---------- 轮播媒体位 ---------- */
.media-carousel.has-media{display:block;position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--line2);background:#0B1730;box-shadow:var(--sh3);aspect-ratio:4/3}
.media-carousel .mc-track{position:absolute;inset:0}
.media-carousel .mc-slide{position:absolute;inset:0;margin:0;opacity:0;transition:opacity .8s var(--ease);pointer-events:none}
.media-carousel .mc-slide.on{opacity:1;pointer-events:auto}
.media-carousel img,.media-carousel video{display:block;width:100%;height:100%;object-fit:cover}
.media-carousel figcaption{position:absolute;left:0;right:0;bottom:0;padding:16px 18px;font-size:12.5px;color:#fff;
  background:linear-gradient(180deg,transparent,rgba(6,14,30,.75))}
.media-carousel .mc-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:10px;
  z-index:4;padding:8px 14px;border-radius:100px;background:rgba(17,24,39,.42);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.4)}
.media-carousel .mc-dot{width:24px;height:8px;padding:0;border:0;border-radius:100px;cursor:pointer;
  background:rgba(255,255,255,.42);transition:.3s var(--ease)}
.media-carousel .mc-dot.on{width:36px;background:#fff}

/* ---------- 3D打印首屏媒体位 ---------- */
.print-hero-media{margin-top:52px}
.print-hero-media .media-slot{width:100%}
.print-hero-media .media-slot .mg-item{width:100%;aspect-ratio:900/260;border-radius:20px}

/* ---------- 案例板块 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px}
.case-card{background:var(--bg2);border:1px solid var(--line);border-radius:18px;overflow:hidden;
  box-shadow:var(--sh1);transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .5s var(--ease)}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--sh3);border-color:var(--line2)}
.case-media{position:relative;aspect-ratio:16/10;background:var(--bg3);overflow:hidden}
.case-media img,.case-media video{display:block;width:100%;height:100%;object-fit:cover}
.case-body{padding:18px 20px 22px}
.case-body h3{font-size:1.05rem;margin-bottom:8px;color:var(--ink);letter-spacing:-.01em}
.case-body p{font-size:13px;color:var(--muted);line-height:1.8}

/* ---------- 点击查看详情：提示按钮 ---------- */
.is-openable{cursor:pointer;-webkit-tap-highlight-color:transparent}
.is-openable:focus-visible{outline:2px solid var(--sky);outline-offset:3px}
.media-more{position:absolute;right:12px;bottom:12px;z-index:3;display:inline-flex;align-items:center;gap:6px;
  padding:7px 12px;border-radius:100px;font-size:12px;font-weight:600;line-height:1;color:#fff;white-space:nowrap;
  background:rgba(10,20,40,.5);border:1px solid rgba(255,255,255,.5);box-shadow:0 6px 18px -8px rgba(0,0,0,.6);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);pointer-events:none;
  transition:background .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease)}
.media-more svg{width:14px;height:14px;flex:none}
.is-openable:hover .media-more{background:linear-gradient(135deg,var(--sky),var(--mint));border-color:transparent;transform:translateY(-2px)}
.case-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:12.5px;font-weight:600;color:var(--sky);
  transition:color .3s var(--ease)}
.case-more svg{width:15px;height:15px;flex:none}
.case-card:hover .case-more{color:var(--mint)}
/* 作品案例卡：提示按钮放右上角，避免压住底部文字与播放图标 */
.wk .media-more{top:12px;right:12px;bottom:auto;background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.55)}
.wk:hover .media-more{background:linear-gradient(135deg,var(--sky),var(--mint));border-color:transparent;transform:translateY(2px)}

/* ---------- 详情弹层 ---------- */
.dt-layer{position:fixed;inset:0;z-index:9999;display:none}
.dt-layer.on{display:block}
.dt-mask{position:absolute;inset:0;background:rgba(6,14,30,.74);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);opacity:0;transition:opacity .3s var(--ease)}
.dt-layer.on .dt-mask{opacity:1}
.dt-panel{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.96);opacity:0;
  width:min(920px,92vw);max-height:90vh;overflow:auto;background:var(--bg2);border:1px solid var(--line2);
  border-radius:22px;box-shadow:var(--sh3);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.dt-layer.on .dt-panel{opacity:1;transform:translate(-50%,-50%) scale(1)}
.dt-media{position:relative;background:#0B1730}
.dt-media img,.dt-media video{display:block;width:100%;max-height:66vh;object-fit:contain;margin:0 auto}
/* 视频缓冲时：先给出视频框高度，避免塌陷成一条 */
.dt-media.vload-frame{min-height:min(46vh,460px)}
/* 视频加载中：转圈 + 提示（所有视频通用） */
.vload{position:absolute;inset:0;z-index:3;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;background:rgba(6,14,30,.62);text-align:center;padding:20px;pointer-events:none}
.vload[hidden]{display:none}
.vload-spin{width:40px;height:40px;border-radius:50%;border:3px solid rgba(255,255,255,.22);border-top-color:#6fb4ff;
  animation:vloadspin .85s linear infinite}
@keyframes vloadspin{to{transform:rotate(360deg)}}
.vload-txt{font-size:13.5px;letter-spacing:.04em;color:#e6eeff;font-weight:500}
.vload-host{position:relative}
.dt-grad{height:min(320px,42vh)}
.dt-body{padding:20px 24px 26px}
.dt-kick{display:block;font-family:var(--f-mono);font-size:12px;letter-spacing:.12em;color:var(--sky-d);margin-bottom:9px}
.dt-title{font-size:1.2rem;color:var(--ink);margin-bottom:8px;letter-spacing:-.01em}
.dt-desc{font-size:14px;color:var(--muted);line-height:1.9}
.dt-link{display:inline-flex;align-items:center;gap:7px;margin-top:18px;padding:11px 20px;border-radius:100px;
  font-size:13.5px;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--sky),var(--sky-d));
  box-shadow:var(--glow-sky);transition:.3s var(--ease)}
.dt-link::after{content:'↗';font-size:13px}
.dt-link:hover{transform:translateY(-2px)}
.dt-x{position:absolute;right:14px;top:14px;z-index:2;width:40px;height:40px;border-radius:50%;cursor:pointer;
  display:flex;align-items:center;justify-content:center;color:#fff;background:rgba(10,20,40,.55);
  border:1px solid rgba(255,255,255,.4);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:.3s var(--ease)}
.dt-x svg{width:20px;height:20px}
.dt-x:hover{background:rgba(255,90,90,.9);border-color:transparent}
@media(max-width:720px){
  .dt-panel{width:94vw;max-height:92vh}
  .dt-media img,.dt-media video{max-height:54vh}
  .dt-media.vload-frame{min-height:38vh}
  .media-more{right:8px;bottom:8px;padding:6px 10px;font-size:11px}
}

/* ---------- 关于我们首屏单栏 ---------- */
.phero-2col.solo{grid-template-columns:1fr;max-width:820px}

@media(max-width:1080px){
  .media-grid.has-media{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:720px){
  .media-grid.has-media{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .phero-2col.solo{max-width:none}
}