/* =====================================================
   迪晨科技 DICHEN TECH — 官网样式（深空蓝 AI 主题）
   深蓝底 · 暗色玻璃卡片 · 亮蓝/青色光效
===================================================== */
:root{
  --bg:#050B17;
  --bg-2:#081323;
  --panel:rgba(13,26,50,.6);
  --panel-2:rgba(16,30,58,.92);
  --line:rgba(126,168,255,.14);
  --line-strong:rgba(126,168,255,.32);
  --txt:#D9E6FA;
  --muted:#9DB1D4;
  --dim:#6F83A8;
  --blue:#3D8BFF;
  --blue-2:#5AA2FF;
  --cyan:#27D3F5;
  --indigo:#7A8CFF;
  --grad:linear-gradient(100deg,#2F7BFF 0%,#18C2EE 100%);
  --glow:0 18px 50px -18px rgba(47,123,255,.55);
  --r:18px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Helvetica,Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--txt);
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:rgba(47,123,255,.4);color:#F0F6FF}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
img,svg{display:block}
b{font-weight:600;color:#F0F6FF}
em{font-style:normal}

.container{width:min(1180px,92%);margin:0 auto}
.ic{width:1.25em;height:1.25em;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* ---------- 全局背景 ---------- */
.bg-fx{position:fixed;inset:0;z-index:-1;overflow:hidden;background:
  radial-gradient(1100px 640px at 85% -8%,rgba(47,123,255,.16),transparent 60%),
  radial-gradient(900px 600px at -10% 28%,rgba(24,194,238,.10),transparent 60%),
  linear-gradient(180deg,#050B17 0%,#060D1D 55%,#04101F 100%);}
.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;pointer-events:none}
.orb-a{width:560px;height:560px;left:-160px;top:-120px;background:radial-gradient(circle,rgba(47,123,255,.22),transparent 65%);animation:drift 26s ease-in-out infinite alternate}
.orb-b{width:480px;height:480px;right:-140px;top:32%;background:radial-gradient(circle,rgba(24,194,238,.16),transparent 65%);animation:drift 32s ease-in-out infinite alternate-reverse}
.orb-c{width:640px;height:640px;left:30%;bottom:-260px;background:radial-gradient(circle,rgba(122,140,255,.16),transparent 65%);animation:drift 38s ease-in-out infinite alternate}
@keyframes drift{from{transform:translate(0,0) scale(1)}to{transform:translate(60px,40px) scale(1.12)}}
.bg-grid{position:absolute;inset:0;background:
  linear-gradient(rgba(126,168,255,.06) 1px,transparent 1px),
  linear-gradient(90deg,rgba(126,168,255,.06) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 30%,transparent 75%);
          mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 30%,transparent 75%);}

/* ---------- 导航 ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:.35s;padding:18px 0}
.nav.scrolled{padding:10px 0;background:rgba(4,10,22,.8);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--line);box-shadow:0 10px 40px -20px rgba(2,8,20,.6)}
.nav-inner{display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand-mark{width:40px;height:40px;filter:drop-shadow(0 0 12px rgba(47,123,255,.45))}
.brand-txt{font-size:19px;font-weight:800;letter-spacing:.06em;color:#F0F6FF;display:flex;flex-direction:column;line-height:1.15}
.brand-txt i{font-style:normal;font-size:9.5px;font-weight:600;letter-spacing:.34em;color:#6F83A8}
.menu{display:flex;gap:2px;margin-left:auto;flex-wrap:nowrap}
.menu a{padding:8px 11px;font-size:13.5px;color:#9DB1D4;border-radius:10px;transition:.25s;position:relative;white-space:nowrap}
.menu a:hover{color:#F0F6FF;background:rgba(47,123,255,.1)}
.menu a.active{color:#F0F6FF}
.menu a.active::after{content:"";position:absolute;left:11px;right:11px;bottom:2px;height:2px;border-radius:2px;background:var(--grad)}
.nav-cta{flex:none}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:22px;height:2px;background:#CFE0F8;border-radius:2px;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-size:15.5px;font-weight:600;padding:13px 26px;border-radius:14px;transition:.3s;cursor:pointer;border:0;letter-spacing:.02em}
.btn .ic{width:1.1em;height:1.1em}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 24px 60px -18px rgba(47,123,255,.65)}
.btn-primary::after{content:"";position:absolute;inset:0;border-radius:inherit;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.45) 50%,transparent 70%);transform:translateX(-120%);transition:transform .7s}
.btn-primary{position:relative;overflow:hidden}
.btn-primary:hover::after{transform:translateX(120%)}
.btn-ghost{color:#CFE0F8;border:1px solid var(--line-strong);background:rgba(255,255,255,.04)}
.btn-ghost:hover{border-color:rgba(90,162,255,.6);background:rgba(47,123,255,.12);transform:translateY(-2px)}
.btn-sm{padding:9px 20px;font-size:14px;border-radius:11px}
.btn-lg{padding:16px 34px;font-size:16.5px}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;padding:150px 0 90px;overflow:hidden}
#stars{position:absolute;inset:0;width:100%;height:100%}
.hero-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:min(840px,96vw);aspect-ratio:1/1;pointer-events:none}
.hero-core i{position:absolute;border-radius:50%}
.hero-core i:nth-child(1){inset:0;border:1.5px dashed rgba(90,162,255,.18);animation:spin 64s linear infinite}
.hero-core i:nth-child(2){inset:15%;border:1.5px solid transparent;border-top-color:rgba(39,211,245,.4);border-right-color:rgba(47,123,255,.18);animation:spin 28s linear infinite reverse}
.hero-core i:nth-child(3){inset:30%;border:1px dashed rgba(126,168,255,.16);animation:spin 46s linear infinite}
.hero-core::after{content:"";position:absolute;inset:36%;border-radius:50%;background:radial-gradient(circle,rgba(47,123,255,.2),transparent 70%);filter:blur(12px)}
.hero-inner{position:relative;text-align:center;max-width:920px}
.hero-badge{display:inline-flex;align-items:center;gap:10px;font-size:13.5px;letter-spacing:.12em;color:#9FC4FF;padding:9px 20px;border-radius:99px;border:1px solid rgba(90,162,255,.35);background:rgba(10,22,44,.55);backdrop-filter:blur(6px)}
.hero-badge .ic-spark{width:1em;height:1em;color:var(--cyan)}
.hero h1{margin:30px 0 24px;font-size:clamp(2.5rem,6.4vw,4.4rem);line-height:1.22;font-weight:800;letter-spacing:.015em;color:#F0F6FF}
.hero h1 em{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:clamp(1rem,1.6vw,1.15rem);color:var(--muted);max-width:760px;margin:0 auto}
.hero-sub b{color:#CFE0F8}
.hero-cta{display:flex;gap:16px;justify-content:center;margin-top:40px;flex-wrap:wrap}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:30px}
.hero-chips span{font-size:13px;color:#9FC4FF;padding:7px 16px;border-radius:99px;border:1px solid rgba(90,162,255,.28);background:rgba(10,22,44,.5)}
.hero-chips span:hover{color:#E8F1FF;border-color:rgba(90,162,255,.55);background:rgba(13,26,50,.85)}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:64px;padding-top:38px;border-top:1px solid var(--line)}
.stat{text-align:center}
.num{font-size:clamp(1.9rem,3.4vw,2.6rem);font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.num-cn{font-size:clamp(1.5rem,2.6vw,2rem)}
.lab{font-size:13.5px;color:var(--dim);margin-top:6px;letter-spacing:.06em}
.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);width:26px;height:42px;border:1.5px solid rgba(126,168,255,.4);border-radius:14px}
.scroll-hint span{position:absolute;top:7px;left:50%;width:4px;height:8px;margin-left:-2px;border-radius:4px;background:var(--blue);animation:scrolldot 1.8s ease-in-out infinite}
@keyframes scrolldot{0%{transform:translateY(0);opacity:1}70%{transform:translateY(14px);opacity:0}100%{opacity:0}}

/* ---------- AI 技术关键词滚动带 ---------- */
.tech-marquee{position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(90deg,rgba(47,123,255,.06),rgba(24,194,238,.03),rgba(47,123,255,.06));padding:17px 0;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.tm-track{display:flex;align-items:center;width:max-content;animation:tmscroll 42s linear infinite}
.tech-marquee:hover .tm-track{animation-play-state:paused}
.tm-track span{display:inline-flex;align-items:center;white-space:nowrap;font-size:14px;font-weight:600;letter-spacing:.14em;color:#9FC4FF}
.tm-track span::after{content:"";width:6px;height:6px;background:var(--cyan);transform:rotate(45deg);margin:0 30px;opacity:.65;flex:none}
@keyframes tmscroll{to{transform:translateX(-50%)}}

/* ---------- 通用 Section ---------- */
.section{position:relative;padding:clamp(62px,6.4vw,92px) 0}
.section-alt{background:linear-gradient(180deg,rgba(47,123,255,.07),rgba(47,123,255,.015));border-top:1px solid rgba(126,168,255,.09);border-bottom:1px solid rgba(126,168,255,.09)}
.sec-head{text-align:center;max-width:800px;margin:0 auto clamp(34px,3.6vw,50px)}
.sec-label{display:inline-flex;align-items:center;gap:12px;font-size:12.5px;font-weight:700;letter-spacing:.3em;color:#79ACFF;text-transform:uppercase;margin-bottom:18px}
.sec-label::before,.sec-label::after{content:"";width:26px;height:1px;background:linear-gradient(90deg,transparent,rgba(63,139,255,.8));display:inline-block}
.sec-label::after{background:linear-gradient(90deg,rgba(63,139,255,.8),transparent)}
.sec-head h2{font-size:clamp(1.7rem,3.6vw,2.6rem);font-weight:800;line-height:1.35;letter-spacing:.01em;color:#F0F6FF}
.sec-head h2 em{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sec-head p{color:var(--muted);margin-top:16px;font-size:15.5px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}

/* ---------- 卡片 ---------- */
.card{position:relative;padding:34px 30px;border-radius:var(--r);background:linear-gradient(180deg,rgba(19,35,66,.72),rgba(13,26,50,.5));border:1px solid var(--line);transition:.35s;overflow:hidden;box-shadow:0 12px 40px -24px rgba(2,8,20,.6)}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;background:radial-gradient(420px 200px at 50% -20%,rgba(47,123,255,.14),transparent 70%);opacity:0;transition:.35s}
.card:hover{transform:translateY(-5px);border-color:rgba(90,162,255,.45);box-shadow:0 26px 60px -28px rgba(47,123,255,.4)}
.card:hover::before{opacity:1}
.card h3{font-size:19px;font-weight:700;margin:16px 0 10px;color:#F0F6FF}
.card p{font-size:14.5px;color:var(--muted)}
.card-ic{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;color:var(--blue-2);background:rgba(47,123,255,.12);border:1px solid rgba(90,162,255,.3);box-shadow:inset 0 0 20px rgba(47,123,255,.08)}
.card-ic .ic{width:26px;height:26px}
.card-no{position:absolute;top:18px;right:24px;font-size:44px;font-weight:800;color:transparent;-webkit-text-stroke:1px rgba(126,168,255,.26);line-height:1}

/* ---------- 断层带 ---------- */
.gap-band{display:grid;grid-template-columns:1fr 150px 1fr;align-items:stretch;gap:0;margin-top:56px;border:1px solid var(--line);border-radius:var(--r);background:rgba(13,26,50,.45);overflow:hidden;box-shadow:0 12px 40px -24px rgba(2,8,20,.5)}
.gap-col{padding:34px 36px}
.gap-col h4{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#CFE0F8;padding-bottom:14px;margin-bottom:16px;border-bottom:1px dashed var(--line)}
.gap-col h4 .ic{color:var(--blue-2)}
.gap-col li{position:relative;padding:7px 0 7px 22px;color:var(--muted);font-size:14.5px}
.gap-col li::before{content:"";position:absolute;left:2px;top:16px;width:7px;height:7px;border-radius:2px;background:linear-gradient(135deg,#2F7BFF,#18C2EE);transform:rotate(45deg)}
.gap-mid{position:relative;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,transparent,rgba(47,123,255,.09),transparent);border-left:1px dashed var(--line-strong);border-right:1px dashed var(--line-strong)}
.gap-mid span{writing-mode:vertical-rl;letter-spacing:.5em;font-size:14px;font-weight:700;color:#9FC4FF}
.gap-conclusion{text-align:center;margin-top:34px;font-size:clamp(1.05rem,2vw,1.3rem);color:#D9E6FA}
.gap-conclusion b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800}

/* ---------- 公式 & 引用 ---------- */
.formula{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:14px;margin-top:56px;padding:26px 30px;border:1px solid var(--line);border-radius:var(--r);background:rgba(13,26,50,.5);box-shadow:0 12px 40px -24px rgba(2,8,20,.5)}
.formula span{font-size:15.5px;font-weight:600;color:#CFE0F8;padding:9px 20px;border-radius:99px;border:1px solid rgba(126,168,255,.22);background:rgba(8,17,34,.9)}
.formula i,.formula b{font-style:normal;font-size:19px;font-weight:800;color:var(--blue-2)}
.formula .formula-r{background:var(--grad);color:#fff;border:0;font-weight:800;box-shadow:var(--glow)}
.quote{display:flex;align-items:center;justify-content:center;gap:14px;margin-top:30px;text-align:center;font-size:clamp(1.02rem,2vw,1.25rem);color:#D9E6FA}
.quote .ic{color:var(--cyan);width:1.4em;height:1.4em}
.quote b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800}
.footnote{margin-top:26px;text-align:center;font-size:12.5px;color:var(--dim)}

/* ---------- 业务体系 ---------- */
.biz-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.biz-card{padding:36px 34px}
.biz-top{display:flex;align-items:center;gap:16px;margin-bottom:22px}
.biz-no{font-size:40px;font-weight:800;color:transparent;-webkit-text-stroke:1px rgba(126,168,255,.4);line-height:1}
.biz-tags{display:flex;align-items:center;gap:10px;font-size:19px}
.biz-tags b{font-weight:800;color:#F0F6FF}
.biz-tags i{color:#5F7699;font-style:normal}
.biz-tags span{color:var(--blue-2);font-size:15px;letter-spacing:.1em}
.biz-card .card-ic{margin-bottom:18px}
.biz-desc{font-size:14.5px;color:var(--muted);margin-bottom:18px}
.biz-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.biz-list li{font-size:13px;color:#9FC4FF;padding:6px 14px;border-radius:8px;background:rgba(47,123,255,.1);border:1px solid rgba(90,162,255,.24)}
.biz-foot{font-size:13.5px;color:var(--dim);padding-left:14px;border-left:2px solid rgba(39,211,245,.6)}
.base-strip{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:22px;margin-top:48px;padding:22px 30px;border-radius:var(--r);border:1px dashed var(--line-strong);background:rgba(13,26,50,.4)}
.base-tt{font-size:13px;letter-spacing:.3em;color:#9FC4FF;font-weight:700}
.base-items{display:flex;align-items:center;flex-wrap:wrap;gap:18px}
.base-items span{font-size:14.5px;color:var(--muted)}
.base-items i{width:5px;height:5px;border-radius:50%;background:rgba(90,162,255,.5)}

/* ---------- SwarmAI 仪表盘 ---------- */
.dash-wrap{position:relative;margin-bottom:26px}
.dash{width:100%;height:auto;border-radius:22px;box-shadow:0 40px 100px -40px rgba(2,8,20,.9),0 0 0 1px rgba(126,168,255,.1)}
.dash text{font-family:var(--font)}
.chart-line{stroke-dasharray:620;stroke-dashoffset:620;animation:drawline 2.4s .6s ease forwards}
@keyframes drawline{to{stroke-dashoffset:0}}
.dash-chip{position:absolute;display:flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:#CFE0F8;padding:10px 18px;border-radius:12px;border:1px solid rgba(90,162,255,.32);background:rgba(10,22,44,.88);backdrop-filter:blur(10px);box-shadow:0 14px 40px -16px rgba(2,8,20,.7);animation:float 5s ease-in-out infinite}
.dash-chip .ic{color:var(--blue-2)}
.chip-1{top:-18px;left:6%}
.chip-2{top:36%;right:-14px;animation-delay:1.2s}
.chip-3{bottom:-16px;left:16%;animation-delay:2.2s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

/* ---------- 平台横幅（安全边界） ---------- */
.sec-band{margin:26px 0;border-radius:22px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(47,123,255,.09),rgba(10,22,44,.4));padding:clamp(30px,4.5vw,48px);overflow:hidden;position:relative}
.sec-band::before{content:"";position:absolute;top:-140px;left:50%;transform:translateX(-50%);width:640px;height:280px;background:radial-gradient(closest-side,rgba(24,194,238,.14),transparent);pointer-events:none}
.sec-band-head{text-align:center;max-width:760px;margin:0 auto 36px;position:relative}
.sec-band-head h3{display:inline-flex;align-items:center;gap:12px;font-size:clamp(1.25rem,2.6vw,1.7rem);font-weight:800;color:#F0F6FF}
.sec-band-head h3 .ic{color:var(--blue-2)}
.sec-band-head p{color:var(--muted);font-size:14.5px;margin-top:12px}
.sec-band-body{display:grid;grid-template-columns:1fr 1.2fr;gap:36px;align-items:center;position:relative}
.mini{padding:16px 20px;border-radius:14px;background:rgba(13,26,50,.7);border:1px solid var(--line);margin-bottom:14px}
.mini b{display:block;font-size:15.5px;color:#CFE0F8;margin-bottom:4px}
.mini span{font-size:13.5px;color:var(--muted)}
.boundary{border:1.5px dashed rgba(90,162,255,.45);border-radius:18px;padding:24px 22px;background:rgba(10,22,44,.5);text-align:center}
.boundary-cap{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:#4DD8F5;letter-spacing:.08em;margin-bottom:18px}
.boundary-cap .ic{width:1.1em;height:1.1em}
.cluster{border:1px solid var(--line);border-radius:14px;background:rgba(47,123,255,.08);padding:16px;margin-bottom:14px}
.cluster-tt{display:block;font-size:13.5px;font-weight:700;color:#CFE0F8;margin-bottom:12px;letter-spacing:.15em}
.cluster-agents{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.agent{font-size:12.5px;color:#9FC4FF;padding:6px 14px;border-radius:99px;background:rgba(10,22,44,.75);border:1px solid rgba(126,168,255,.2)}
.agent-core{background:var(--grad);color:#fff;font-weight:700;border:0}
.gov-chips{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.gov-chips span{font-size:12px;color:#9DB1D4;padding:5px 12px;border-radius:7px;background:rgba(10,22,44,.75);border:1px solid var(--line)}
.infra{display:inline-flex;align-items:center;gap:9px;font-size:13.5px;font-weight:600;color:#C9E9F7;padding:9px 20px;border-radius:10px;background:rgba(39,211,245,.08);border:1px solid rgba(39,211,245,.32)}
.infra .ic{color:var(--cyan)}

/* ---------- 数字专家矩阵 ---------- */
.experts{margin-top:64px}
.experts-head{text-align:center;max-width:720px;margin:0 auto 40px}
.experts-head h3{display:inline-flex;align-items:center;gap:11px;font-size:clamp(1.2rem,2.4vw,1.55rem);font-weight:800;color:#F0F6FF}
.experts-head h3 .ic{color:var(--blue-2)}
.experts-head p{color:var(--muted);font-size:14.5px;margin-top:12px}
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.expert{padding:28px 22px;border-radius:var(--r);background:linear-gradient(180deg,rgba(19,35,66,.75),rgba(13,26,50,.55));border:1px solid var(--line);text-align:center;transition:.35s;position:relative;overflow:hidden;box-shadow:0 12px 40px -24px rgba(2,8,20,.6)}
.expert:hover{transform:translateY(-5px);border-color:rgba(90,162,255,.45);box-shadow:0 24px 60px -28px rgba(47,123,255,.4)}
.avatar{position:relative;width:76px;height:76px;margin:0 auto 16px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;color:#fff;box-shadow:0 0 0 3px rgba(5,11,23,.9),0 12px 34px -10px rgba(47,123,255,.6)}
.av-a{background:linear-gradient(135deg,#2F7BFF,#18C2EE)}
.av-b{background:linear-gradient(135deg,#5A6CF0,#9B4BFF)}
.av-c{background:linear-gradient(135deg,#0EA5E9,#38BDF8)}
.av-d{background:linear-gradient(135deg,#2563EB,#7C9CFF)}
.avatar .dot{position:absolute;right:2px;bottom:2px;width:16px;height:16px;border-radius:50%;border:3px solid #0A1428}
.dot.on{background:#4ADE80;animation:pulse 2s infinite}
.dot.ok{background:#3D8BFF}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(74,222,128,.4)}70%{box-shadow:0 0 0 8px rgba(74,222,128,0)}100%{box-shadow:0 0 0 0 rgba(74,222,128,0)}}
.expert h4{font-size:17px;font-weight:700;letter-spacing:.02em;color:#F0F6FF}
.expert .role{display:block;font-size:13px;color:var(--blue-2);margin:5px 0 14px;letter-spacing:.08em}
.skills{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-bottom:16px}
.skills span{font-size:11.5px;color:#9DB1D4;padding:4px 10px;border-radius:6px;background:rgba(47,123,255,.09);border:1px solid var(--line)}
.status{font-size:12px;letter-spacing:.1em;color:var(--dim)}
.status.on{color:#4ADE80}
.status.ok{color:#5AA2FF}
.experts-foot{text-align:center;margin-top:34px;font-size:14px;color:var(--dim)}
.experts-foot b{color:#9FC4FF}

/* ---------- 工作坊 ---------- */
.tri{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:52px}
.tri-item{padding:22px 24px;border-radius:14px;background:rgba(13,26,50,.55);border:1px solid var(--line);text-align:center}
.tri-item b{display:block;font-size:16.5px;color:#CFE0F8;margin-bottom:6px}
.tri-item span{font-size:13.5px;color:var(--dim)}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:step}
.steps.four{grid-template-columns:repeat(4,1fr)}
.step{position:relative;padding:30px 20px 26px;border-radius:16px;background:linear-gradient(180deg,rgba(19,35,66,.75),rgba(13,26,50,.5));border:1px solid var(--line);text-align:center;transition:.3s;box-shadow:0 12px 40px -24px rgba(2,8,20,.55)}
.step:hover{border-color:rgba(90,162,255,.45);transform:translateY(-4px)}
.step-no{position:absolute;top:14px;left:16px;font-size:13px;font-weight:800;color:transparent;-webkit-text-stroke:1px rgba(126,168,255,.45)}
.step-ic{width:48px;height:48px;margin:0 auto 14px;border-radius:13px;display:flex;align-items:center;justify-content:center;color:var(--blue-2);background:rgba(47,123,255,.12);border:1px solid rgba(90,162,255,.3)}
.step-ic .ic{width:23px;height:23px}
.step h4{font-size:16.5px;font-weight:700;margin-bottom:8px;color:#F0F6FF}
.step p{font-size:12.8px;color:var(--muted);line-height:1.7}
.step::after{content:"";position:absolute;top:50%;right:-13px;width:8px;height:8px;border-top:2px solid rgba(126,168,255,.55);border-right:2px solid rgba(126,168,255,.55);transform:translateY(-50%) rotate(45deg)}
.step:last-child::after{display:none}
.ws-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:48px}
.ws-col{padding:28px 30px;border-radius:var(--r);border:1px solid var(--line);background:rgba(13,26,50,.5)}
.ws-col h4{font-size:15.5px;color:#CFE0F8;margin-bottom:16px;letter-spacing:.1em}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chips span{font-size:13px;color:#9FC4FF;padding:8px 16px;border-radius:99px;background:rgba(47,123,255,.09);border:1px solid rgba(90,162,255,.22);transition:.25s}
.chips span:hover{border-color:rgba(90,162,255,.5);color:#E8F1FF;background:rgba(47,123,255,.16)}

/* ---------- 增长赋能 ---------- */
.growth-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}
.growth-card{padding:38px 34px}
.growth-desc{margin-bottom:22px}
.loop li{display:grid;grid-template-columns:34px 110px 1fr;gap:12px;align-items:baseline;padding:13px 0;border-bottom:1px dashed var(--line)}
.loop li:last-child{border-bottom:0}
.loop li span{width:26px;height:26px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-size:12.5px;font-weight:800;color:#fff;background:var(--grad)}
.loop li b{font-size:14.5px;color:#D9E6FA}
.loop li i{font-style:normal;font-size:12.8px;color:var(--dim);line-height:1.6}
.path-chips{margin:16px 0 18px}
.path-chips span{background:rgba(39,211,245,.08);border-color:rgba(39,211,245,.3);color:#4DD8F5}

/* ---------- 联系我们 ---------- */
.contact-box{text-align:center;padding:clamp(52px,7vw,88px) clamp(24px,5vw,72px);border-radius:26px;border:1px solid rgba(90,162,255,.32);background:
  radial-gradient(700px 320px at 50% -80px,rgba(47,123,255,.2),transparent 70%),
  linear-gradient(180deg,rgba(13,26,50,.85),rgba(9,19,38,.7));
  position:relative;overflow:hidden;box-shadow:0 30px 80px -40px rgba(2,8,20,.8)}
.contact-box h2{font-size:clamp(1.6rem,3.6vw,2.5rem);font-weight:800;line-height:1.4;margin:8px 0 18px;color:#F0F6FF}
.contact-box>p{color:var(--muted);max-width:680px;margin:0 auto;font-size:15px}
.contact-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:38px}
.contact-meta{display:flex;gap:30px;justify-content:center;flex-wrap:wrap;margin-top:30px}
.contact-meta span{display:inline-flex;align-items:center;gap:9px;font-size:14px;color:var(--dim)}
.contact-meta .ic{color:var(--blue-2)}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--line);padding:64px 0 34px;background:linear-gradient(180deg,#050B17,#030712)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.foot-brand p{margin-top:18px;font-size:13.5px;color:var(--dim);line-height:1.9}
.foot-col h5{font-size:13px;letter-spacing:.24em;color:#79ACFF;margin-bottom:18px;font-weight:700}
.foot-col a{display:block;font-size:14px;color:var(--muted);padding:5px 0;transition:.25s}
.foot-col a:hover{color:#F0F6FF;transform:translateX(3px)}
.foot-bar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding-top:26px;border-top:1px solid rgba(126,168,255,.12);font-size:12.5px;color:var(--dim)}
.foot-slogan{letter-spacing:.14em}

/* ---------- 动效（渐进增强：仅当 html.js 存在时才隐藏待显元素） ---------- */
.reveal{transition:opacity .8s cubic-bezier(.16,1,.3,1),transform .8s cubic-bezier(.16,1,.3,1)}
.js .reveal{opacity:0;transform:translateY(26px)}
.js .reveal.in{opacity:1;transform:none}
.grid-3>.reveal:nth-child(2),.expert-grid>.expert:nth-child(2),.steps>.step:nth-child(2),.biz-grid>.reveal:nth-child(2),.growth-grid>.reveal:nth-child(2),.tri>.tri-item:nth-child(2),.ws-grid>.ws-col:nth-child(2){transition-delay:.1s}
.grid-3>.reveal:nth-child(3),.expert-grid>.expert:nth-child(3),.steps>.step:nth-child(3),.biz-grid>.reveal:nth-child(3),.tri>.tri-item:nth-child(3){transition-delay:.2s}
.expert-grid>.expert:nth-child(4),.steps>.step:nth-child(4){transition-delay:.3s}
.steps>.step:nth-child(5){transition-delay:.4s}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
  html.js .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .menu{gap:0}
  .menu a{padding:8px 10px;font-size:13.5px}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .steps.four{grid-template-columns:repeat(2,1fr)}
  .step::after{display:none}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .menu{position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);flex-direction:column;gap:6px;padding:110px 30px 30px;background:rgba(4,10,22,.97);backdrop-filter:blur(20px);border-left:1px solid var(--line);transform:translateX(100%);transition:.4s cubic-bezier(.16,1,.3,1);z-index:99}
  .menu.open{transform:none}
  .menu a{font-size:17px;padding:13px 16px}
  .nav-toggle{display:flex;margin-left:auto;position:relative;z-index:101}
  .nav-cta{display:none}
  .grid-3,.tri{grid-template-columns:1fr}
  .biz-grid,.growth-grid,.ws-grid{grid-template-columns:1fr}
  .gap-band{grid-template-columns:1fr}
  .gap-mid{border:0;border-top:1px dashed var(--line-strong);border-bottom:1px dashed var(--line-strong);padding:16px 0}
  .gap-mid span{writing-mode:horizontal-tb;letter-spacing:.5em}
  .sec-band-body{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:26px}
  .dash-chip{display:none}
  .loop li{grid-template-columns:34px 96px 1fr}
}
@media (max-width:600px){
  .hero{padding-top:120px}
  .steps{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .hero-cta .btn{width:100%;justify-content:center}
  .foot-grid{grid-template-columns:1fr}
  .loop li{grid-template-columns:30px 1fr;grid-template-rows:auto auto}
  .loop li i{grid-column:2}
  .hero-core{opacity:.5}
}

/* ---------- Hero 打字机 ---------- */
.type-line{display:inline-flex;align-items:center;gap:10px;margin-top:26px;padding:11px 22px;border-radius:12px;border:1px solid rgba(90,162,255,.28);background:rgba(10,22,44,.6);backdrop-filter:blur(8px);font-size:14.5px;color:#9FC4FF}
.type-line .ic{color:var(--blue-2)}
.type-pre{font-weight:600}
.type-target{font-weight:800;color:#F0F6FF;min-width:1ch}
.caret{width:2px;height:1.15em;background:var(--cyan);animation:caret 1s steps(2) infinite;border-radius:2px}
@keyframes caret{0%,49%{opacity:1}50%,100%{opacity:0}}

/* ---------- 卡片聚光灯 ---------- */
.card,.expert,.tri-item{position:relative}
.card::after,.expert::after,.tri-item::after{content:"";position:absolute;inset:0;border-radius:inherit;background:radial-gradient(260px circle at var(--mx,50%) var(--my,50%),rgba(90,162,255,.13),transparent 65%);opacity:0;transition:opacity .35s;pointer-events:none}
.card:hover::after,.expert:hover::after,.tri-item:hover::after{opacity:1}

/* ---------- 数字员工实况演示 ---------- */
.ai-demo{margin:56px 0 26px;border-radius:22px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(15,30,58,.9),rgba(10,20,40,.85));box-shadow:0 30px 80px -40px rgba(2,8,20,.7);overflow:hidden}
.demo-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 26px;border-bottom:1px solid var(--line);background:linear-gradient(90deg,rgba(47,123,255,.12),rgba(24,194,238,.06))}
.demo-title{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:16.5px;color:#F0F6FF}
.demo-title .ic{color:var(--blue-2)}
.demo-live{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;letter-spacing:.22em;color:#FF9A5C;background:rgba(249,115,22,.12);border:1px solid rgba(249,115,22,.35);padding:5px 14px;border-radius:99px}
.demo-live i{width:8px;height:8px;border-radius:50%;background:#F97316;animation:pulse2 1.6s infinite}
@keyframes pulse2{0%{box-shadow:0 0 0 0 rgba(249,115,22,.5)}70%{box-shadow:0 0 0 7px rgba(249,115,22,0)}100%{box-shadow:0 0 0 0 rgba(249,115,22,0)}}
.demo-body{display:grid;grid-template-columns:1fr 1.25fr;gap:26px;padding:24px 26px 28px}
.demo-col-tt{font-size:13px;font-weight:700;letter-spacing:.14em;color:#9FC4FF;margin-bottom:14px}
.demo-feed{display:flex;flex-direction:column;gap:10px;min-height:285px}
.demo-feed li{display:flex;align-items:flex-start;gap:11px;padding:11px 14px;border-radius:12px;background:rgba(47,123,255,.07);border:1px solid rgba(90,162,255,.15);animation:feedin .5s ease}
@keyframes feedin{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.f-dot{flex:none;width:8px;height:8px;margin-top:7px;border-radius:50%;background:var(--grad);box-shadow:0 0 0 3px rgba(47,123,255,.16)}
.demo-feed b{display:block;font-size:13px;color:#CFE0F8}
.demo-feed span{font-size:12.5px;color:var(--dim);line-height:1.5}
.demo-feed time{margin-left:auto;flex:none;font-size:11px;color:#5F7699;font-variant-numeric:tabular-nums}
.demo-chips{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:16px}
.demo-chips button{font-family:var(--font);font-size:13.5px;font-weight:600;color:#9FC4FF;padding:9px 18px;border-radius:99px;border:1px solid rgba(90,162,255,.3);background:rgba(10,22,44,.7);cursor:pointer;transition:.25s}
.demo-chips button:hover{border-color:var(--blue-2);color:var(--blue-2);transform:translateY(-1px)}
.demo-chips button.on{background:var(--grad);color:#fff;border-color:transparent;box-shadow:var(--glow)}
.demo-out{min-height:285px;border-radius:14px;border:1px dashed rgba(126,168,255,.32);background:rgba(47,123,255,.05);padding:16px 18px}
.demo-out-empty{display:flex;align-items:center;gap:10px;height:100%;justify-content:center;color:var(--dim);font-size:13.5px;text-align:center;padding:20px 0}
.demo-out-empty .ic{color:var(--blue-2)}
.demo-run-head{display:flex;align-items:center;gap:11px;padding:12px 14px;border-radius:12px;background:rgba(47,123,255,.11);border:1px solid rgba(90,162,255,.22);margin-bottom:12px}
.demo-run-head .f-dot{margin-top:0;background:#F97316;box-shadow:0 0 0 3px rgba(249,115,22,.18);animation:pulse2 1.2s infinite}
.demo-run-head b{display:block;font-size:14.5px;color:#F0F6FF}
.demo-run-head span{font-size:12px;color:var(--dim)}
.demo-step{display:flex;align-items:center;gap:11px;padding:10px 14px;margin-bottom:8px;border-radius:10px;background:rgba(10,22,44,.7);border:1px solid var(--line);font-size:13.5px;color:#CFE0F8;animation:feedin .4s ease}
.demo-step i{flex:none;width:16px;height:16px;border-radius:50%}
.demo-step.running i{border:2px solid rgba(90,162,255,.3);border-top-color:var(--blue-2);animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.demo-step.done{border-color:rgba(74,222,128,.3);background:rgba(74,222,128,.06)}
.demo-step .okmark{background:#22C55E;position:relative}
.demo-step .okmark::after{content:"";position:absolute;left:4.5px;top:2px;width:4px;height:8px;border-right:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(42deg)}
.demo-run-foot{margin-top:4px;padding:11px 14px;border-radius:10px;background:var(--grad);color:#fff;font-size:13.5px;font-weight:700;text-align:center;animation:feedin .5s ease}
@media (max-width:900px){
  .demo-body{grid-template-columns:1fr}
  .demo-feed{min-height:0}
  .demo-feed li:nth-child(n+4){display:none}
  .demo-out{min-height:240px}
}

/* ---------- AI 技术引擎：控制台 + 实时指标 ---------- */
.ai-console{display:grid;grid-template-columns:1.3fr .9fr;gap:22px;margin-top:26px;align-items:stretch}
.console-win{border-radius:18px;border:1px solid rgba(126,168,255,.22);background:linear-gradient(180deg,#0A1428,#070F20);overflow:hidden;box-shadow:0 30px 80px -40px rgba(2,8,20,.8),0 0 0 1px rgba(47,123,255,.06)}
.con-head{display:flex;align-items:center;gap:8px;padding:13px 18px;border-bottom:1px solid rgba(126,168,255,.12);background:rgba(47,123,255,.07)}
.con-head i{width:10px;height:10px;border-radius:50%;flex:none}
.con-head .ch-r{background:#FF6159}
.con-head .ch-y{background:#FFBD2E}
.con-head .ch-g{background:#28C840}
.con-head span{margin-left:8px;display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.14em;color:#7E96BC}
.con-head span .ic{width:15px;height:15px;color:var(--cyan)}
.con-body{padding:20px 22px;font-family:"SF Mono",ui-monospace,Menlo,Consolas,"Courier New",monospace;font-size:13px;line-height:2.05;min-height:252px}
.con-line{display:flex;gap:10px;align-items:baseline;white-space:nowrap}
.con-p{color:var(--cyan);flex:none;font-weight:700;font-style:normal}
.con-line.ok .con-p{color:#4ADE80}
.cmd{color:#D9E6FA}
.con-line.ok .cmd{color:#9CCFB4}
.js .con-line{visibility:hidden}
.js .con-line.typed{visibility:visible}
@media (prefers-reduced-motion:reduce){.js .con-line{visibility:visible}.js .con-line.typed{visibility:visible}}
.ai-metrics{display:flex;flex-direction:column;gap:14px}
.am-card{flex:1;padding:20px 24px;border-radius:16px;border:1px solid var(--line);background:rgba(13,26,50,.5);display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden}
.am-card::before{content:"";position:absolute;right:-30px;top:-30px;width:120px;height:120px;border-radius:50%;background:radial-gradient(circle,rgba(47,123,255,.16),transparent 70%)}
.am-num{font-size:clamp(1.7rem,2.8vw,2.2rem);font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums;line-height:1.2}
.am-num i{font-style:normal;font-size:.55em;font-weight:700;margin-left:3px;color:var(--cyan);-webkit-text-fill-color:var(--cyan)}
.am-lab{font-size:13px;color:var(--dim);margin-top:5px;letter-spacing:.04em}
.am-note{font-size:11.5px;color:var(--dim);padding:2px 6px 0}
@media (max-width:900px){
  .ai-console{grid-template-columns:1fr}
  .con-line{white-space:normal}
  .con-body{min-height:0}
  .con-body .con-line:nth-child(n+7){display:none}
}

/* ---------- 自研产品 Light AI ---------- */
.lightai-box{display:grid;grid-template-columns:.92fr 1.35fr;gap:22px;align-items:stretch}
.la-hero{position:relative;border-radius:22px;border:1px solid rgba(90,162,255,.3);background:
  radial-gradient(500px 260px at 20% -10%,rgba(47,123,255,.22),transparent 70%),
  linear-gradient(180deg,rgba(19,35,66,.85),rgba(10,20,40,.8));
  padding:38px 34px;display:flex;flex-direction:column;justify-content:center;overflow:hidden;box-shadow:0 30px 80px -40px rgba(2,8,20,.8)}
.la-hero::after{content:"";position:absolute;right:-60px;bottom:-60px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(24,194,238,.14),transparent 70%);pointer-events:none}
.la-logo{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.la-mark{width:56px;height:56px;flex:none;filter:drop-shadow(0 0 14px rgba(47,123,255,.45))}
.la-name{font-size:26px;font-weight:800;color:#F0F6FF;letter-spacing:.02em;line-height:1.1}
.la-name i{display:block;font-style:normal;font-size:10.5px;font-weight:600;letter-spacing:.3em;color:#79ACFF;margin-top:5px}
.la-badge{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;font-size:12px;font-weight:700;letter-spacing:.12em;color:#4DD8F5;background:rgba(39,211,245,.1);border:1px solid rgba(39,211,245,.32);padding:6px 14px;border-radius:99px;margin-bottom:16px}
.la-badge .ic{width:1em;height:1em}
.la-hero p{font-size:14.5px;color:var(--muted);margin-bottom:24px}
.la-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px}
.la-platforms{display:flex;flex-wrap:wrap;gap:8px}
.la-platforms span{font-size:12px;color:#9FC4FF;padding:6px 12px;border-radius:8px;background:rgba(47,123,255,.09);border:1px solid var(--line)}
.la-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.la-cap{padding:22px 20px;border-radius:16px;border:1px solid var(--line);background:rgba(13,26,50,.5);transition:.3s;position:relative;overflow:hidden}
.la-cap::after{content:"";position:absolute;inset:0;border-radius:inherit;background:radial-gradient(240px circle at var(--mx,50%) var(--my,50%),rgba(90,162,255,.12),transparent 65%);opacity:0;transition:opacity .35s;pointer-events:none}
.la-cap:hover{border-color:rgba(90,162,255,.45);transform:translateY(-3px);box-shadow:0 18px 44px -22px rgba(47,123,255,.4)}
.la-cap:hover::after{opacity:1}
.la-cap .card-ic{width:42px;height:42px;border-radius:11px;margin-bottom:12px}
.la-cap .card-ic .ic{width:21px;height:21px}
.la-cap h4{font-size:15.5px;font-weight:700;color:#F0F6FF;margin-bottom:6px}
.la-cap p{font-size:12.8px;color:var(--muted);line-height:1.65}
@media (max-width:1080px){
  .nav-inner{gap:20px}
}
@media (max-width:900px){
  .lightai-box{grid-template-columns:1fr}
}
@media (max-width:600px){
  .la-grid{grid-template-columns:1fr}
  .la-hero{padding:30px 24px}
}

/* ---------- AI 聊天助手 ---------- */
#aiChatBtn{position:fixed;right:22px;bottom:22px;z-index:900;width:60px;height:60px;border-radius:50%;border:0;cursor:pointer;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 14px 40px -10px rgba(47,123,255,.6);transition:.3s}
#aiChatBtn::before{content:"";position:absolute;inset:-6px;border-radius:50%;border:1.5px solid rgba(90,162,255,.4);animation:chatring 2.4s ease-out infinite}
@keyframes chatring{0%{transform:scale(.9);opacity:1}70%{transform:scale(1.25);opacity:0}100%{opacity:0}}
#aiChatBtn .ic{width:27px;height:27px}
#aiChatBtn:hover{transform:translateY(-3px) scale(1.05)}
#aiChatGreet{position:fixed;right:96px;bottom:34px;z-index:900;max-width:240px;padding:12px 16px;border-radius:14px 14px 4px 14px;background:#0E1D3A;border:1px solid var(--line);box-shadow:0 16px 40px -16px rgba(2,8,20,.7);font-size:13px;color:#9FC4FF;line-height:1.6;opacity:0;transform:translateY(8px);pointer-events:none;transition:.4s}
#aiChatGreet.show{opacity:1;transform:none}
#aiChatPanel{position:fixed;right:22px;bottom:22px;z-index:901;width:390px;max-width:calc(100vw - 24px);height:600px;max-height:min(640px,78vh);display:flex;flex-direction:column;border-radius:20px;overflow:hidden;background:linear-gradient(180deg,#0B1830,#081226);border:1px solid rgba(90,162,255,.28);box-shadow:0 30px 80px -20px rgba(2,8,20,.7);opacity:0;transform:translateY(24px) scale(.97);transition:opacity .3s cubic-bezier(.16,1,.3,1),transform .3s cubic-bezier(.16,1,.3,1)}
#aiChatPanel[hidden]{display:none!important}
#aiChatPanel.open{animation:panelin .32s cubic-bezier(.16,1,.3,1) forwards}
@keyframes panelin{from{opacity:0;transform:translateY(24px) scale(.97)}to{opacity:1;transform:none}}
.c-head{display:flex;align-items:center;gap:12px;padding:15px 18px;background:linear-gradient(100deg,#2F7BFF,#18C2EE);color:#fff;flex:none}
.c-ava{width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;flex:none}
.c-ava .ic{width:22px;height:22px;color:#fff}
.c-title{line-height:1.3}
.c-title b{display:block;font-size:15.5px}
.c-title span{display:flex;align-items:center;gap:6px;font-size:11.5px;opacity:.92}
.c-online{width:7px;height:7px;border-radius:50%;background:#4ADE80;display:inline-block;animation:cpulse 2s infinite}
@keyframes cpulse{0%{box-shadow:0 0 0 0 rgba(74,222,128,.6)}70%{box-shadow:0 0 0 5px rgba(74,222,128,0)}100%{box-shadow:0 0 0 0 rgba(74,222,128,0)}}
.c-min{margin-left:auto;background:rgba(255,255,255,.15);border:0;color:#fff;width:30px;height:30px;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.2s}
.c-min:hover{background:rgba(255,255,255,.3)}
.c-min .ic{width:15px;height:15px}
.c-msgs{flex:1;overflow-y:auto;padding:16px 14px;display:flex;flex-direction:column;gap:10px;background:rgba(47,123,255,.045)}
.c-msgs::-webkit-scrollbar{width:6px}
.c-msgs::-webkit-scrollbar-thumb{background:rgba(126,168,255,.25);border-radius:6px}
.c-msg{max-width:82%;padding:10px 14px;border-radius:14px;font-size:13.5px;line-height:1.65;white-space:pre-wrap;word-break:break-word;animation:feedin .3s ease}
.c-msg.ai{align-self:flex-start;background:#0E1D3A;border:1px solid var(--line);border-top-left-radius:4px;color:#CFE0F8}
.c-msg.user{align-self:flex-end;background:var(--grad);color:#fff;border-top-right-radius:4px}
.c-msg.ai b{color:#F0F6FF}
.c-msg.typing{display:flex;gap:5px;align-items:center;padding:14px}
.c-msg.typing span{width:7px;height:7px;border-radius:50%;background:rgba(90,162,255,.45);animation:blink 1.2s infinite}
.c-msg.typing span:nth-child(2){animation-delay:.2s}
.c-msg.typing span:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,70%,100%{opacity:.35;transform:translateY(0)}35%{opacity:1;transform:translateY(-3px)}}
.c-chips{display:flex;gap:7px;padding:8px 14px 0;flex-wrap:wrap;flex:none}
.c-chips button{font-family:var(--font);font-size:12px;color:#9FC4FF;padding:6px 12px;border-radius:99px;border:1px solid rgba(90,162,255,.3);background:rgba(10,22,44,.8);cursor:pointer;transition:.2s}
.c-chips button:hover{background:rgba(47,123,255,.14);color:#CFE0F8}
.c-hint{flex:none;font-size:11px;color:#6F83A8;padding:7px 16px 0;text-align:center}
.c-inputrow{flex:none;display:flex;gap:9px;padding:10px 14px 14px}
#aiChatInput{flex:1;font-family:var(--font);font-size:14px;color:#E8F1FF;padding:11px 15px;border-radius:12px;border:1px solid rgba(126,168,255,.3);background:rgba(8,17,34,.9);outline:none;transition:.2s}
#aiChatInput::placeholder{color:#5F7699}
#aiChatInput:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(47,123,255,.15)}
#aiChatSend{width:44px;height:44px;border-radius:12px;border:0;cursor:pointer;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;transition:.2s;flex:none}
#aiChatSend .ic{width:19px;height:19px}
#aiChatSend:hover{transform:scale(1.05)}
#aiChatSend:disabled{opacity:.45;cursor:not-allowed;transform:none}
@media (max-width:600px){
  #aiChatBtn{right:16px;bottom:16px;width:54px;height:54px}
  #aiChatPanel{right:12px;bottom:12px;height:min(560px,72vh)}
  #aiChatGreet{right:82px;bottom:24px;max-width:200px}
}

/* ---------- 落地四坑 ---------- */
.pit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:36px}
.pit{position:relative;padding:24px 22px;border-radius:14px;background:var(--panel);border:1px solid var(--line);transition:.3s}
.pit:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.pit .card-no{position:static;display:inline-block;font-size:26px;margin-bottom:10px}
.pit b{display:block;font-size:16px;line-height:1.55;color:var(--txt);margin-bottom:10px}
.pit>span:last-child{font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- 原材料降本专项 ---------- */
.loss-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.ls{padding:22px 18px;border-radius:14px;background:var(--panel);border:1px solid var(--line);text-align:center}
.ls b{display:block;font-size:clamp(1.1rem,2vw,1.45rem);background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800}
.ls span{display:block;margin-top:10px;font-size:12px;color:var(--dim);line-height:1.7}
.loss-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:44px}
.loss-col h4{font-size:17px;font-weight:800;color:var(--txt);margin-bottom:16px;letter-spacing:.06em}
.calc-box{margin-top:48px;border-radius:22px;border:1px solid var(--line-strong);background:linear-gradient(180deg,rgba(90,162,255,.07),rgba(255,255,255,.02));padding:clamp(28px,4.5vw,46px)}
.calc-head h3{font-size:clamp(1.3rem,2.6vw,1.8rem);font-weight:800;color:var(--txt)}
.calc-head p{margin-top:10px;font-size:14px;color:var(--muted)}
.calc-body{display:grid;grid-template-columns:1fr 1fr 1.5fr;gap:18px;margin-top:26px;align-items:end}
.calc-in label{display:block;font-size:13px;font-weight:700;color:var(--txt);line-height:1.6;margin-bottom:10px}
.calc-in label small{font-weight:400;color:var(--dim)}
.calc-in input{width:100%;font-family:var(--font);font-size:22px;font-weight:800;padding:12px 16px;border-radius:12px;border:1px solid var(--line-strong);background:rgba(255,255,255,.04);color:var(--txt);outline:none;transition:.2s}
.calc-in input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(47,123,255,.15)}
.calc-out{border-radius:14px;background:var(--grad);padding:16px 22px;color:#fff;box-shadow:var(--glow)}
.calc-out span{display:block;font-size:12.5px;opacity:.92}
.calc-out b{font-size:clamp(1.8rem,3vw,2.4rem);font-weight:800;font-variant-numeric:tabular-nums}
.calc-out b i{font-style:normal}
.calc-out small{display:block;font-size:12px;opacity:.9;margin-top:2px}
.calc-note{margin-top:18px;font-size:13px;color:var(--muted);line-height:1.9}
.calc-note b{color:var(--txt)}
.step-out{margin-top:12px;padding:9px 12px;border-radius:10px;background:rgba(90,162,255,.08);border:1px solid rgba(90,162,255,.22);font-size:11.8px;color:var(--muted);line-height:1.6}

/* ---------- 合作方式 ---------- */
.coop-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.coop{position:relative;padding:26px 22px 22px;border-radius:16px;background:var(--panel);border:1px solid var(--line);transition:.3s}
.coop:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.coop-mode{font-size:11.5px;letter-spacing:.2em;color:var(--dim)}
.coop h4{font-size:18px;font-weight:800;color:var(--txt);margin:8px 0 10px}
.coop p{font-size:13px;color:var(--muted);line-height:1.7;min-height:66px}
.coop-meta{display:grid;grid-template-columns:auto 1fr auto 1fr;gap:6px 10px;padding-top:14px;border-top:1px dashed var(--line);font-size:12.5px;align-items:baseline}
.coop-meta span{color:var(--dim)}
.coop-meta b{color:var(--txt);text-align:right}
.coop-hot{border-color:var(--blue);background:linear-gradient(180deg,rgba(47,123,255,.12),rgba(255,255,255,.02))}
.coop-badge{position:absolute;top:-11px;right:16px;font-size:11px;font-weight:700;color:#fff;background:var(--grad);padding:3px 12px;border-radius:99px;box-shadow:var(--glow)}
@media (max-width:1280px){.menu{gap:0}.menu a{padding:8px 7px;font-size:12.5px}}
@media (max-width:900px){.pit-grid{grid-template-columns:1fr 1fr}.loss-stats{grid-template-columns:1fr 1fr}.loss-grid{grid-template-columns:1fr}.calc-body{grid-template-columns:1fr}.coop-grid{grid-template-columns:1fr 1fr}.coop p{min-height:0}}
@media (max-width:600px){.pit-grid{grid-template-columns:1fr}.coop-grid{grid-template-columns:1fr}}

/* =====================================================
   视觉升级层 v9 —— 打破模板化 / 提升质感 / 修复挤压
===================================================== */

/* ---------- 1. 顶部滚动进度条 ---------- */
.scroll-prog{position:fixed;top:0;left:0;height:2px;width:100%;z-index:200;transform-origin:0 50%;transform:scaleX(0);background:linear-gradient(90deg,#2F7BFF,#18C2EE 60%,#7A8CFF);box-shadow:0 0 14px rgba(47,123,255,.7);pointer-events:none}

/* ---------- 2. 不对称板块头（打破全居中） ---------- */
.sec-head.split{max-width:none;text-align:left;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:24px 56px;align-items:end;
  padding-bottom:26px;border-bottom:1px solid var(--line);position:relative}
.sec-head.split::after{content:"";position:absolute;left:0;bottom:-1px;width:110px;height:2px;background:var(--grad);border-radius:2px}
.sec-head.split .sec-label{grid-column:1;margin-bottom:12px}
.sec-head.split h2{grid-column:1;font-size:clamp(1.65rem,3.1vw,2.35rem)}
.sec-head.split p{grid-column:2;grid-row:1/span 3;margin-top:0;align-self:end;padding-left:26px;border-left:1px solid var(--line);font-size:14.8px;line-height:1.95}
.sec-head.split .sec-label::before{display:none}

/* 板块序号：留在文档流内，避免被固定导航裁切 */
.sec-num{grid-column:1;display:block;font-size:11px;font-weight:800;letter-spacing:.3em;color:rgba(126,168,255,.42);margin-bottom:-2px}

/* ---------- 3. 卡片质感：顶部高光线 + 更明确的层次 ---------- */
.card,.expert,.pit,.coop,.la-cap,.tri-item,.am-card,.ls{isolation:isolate}
.card::first-line{}
.card,.pit,.coop,.la-cap{border-color:rgba(126,168,255,.16)}
.card:hover,.pit:hover,.coop:hover,.la-cap:hover{box-shadow:0 30px 70px -30px rgba(47,123,255,.45),inset 0 1px 0 rgba(255,255,255,.07)}
/* 顶部一道渐变高光，hover 时点亮 —— 高端 SaaS 站常用手法 */
.card>.hl,.pit>.hl,.coop>.hl{position:absolute;left:14%;right:14%;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(122,190,255,.75),transparent);opacity:.42;transition:.35s}
.card:hover>.hl,.pit:hover>.hl,.coop:hover>.hl{opacity:1;left:4%;right:4%}

/* ---------- 4. 修复：落地断层中间竖排文字被挤压 ---------- */
.gap-band{grid-template-columns:1fr 132px 1fr}
.gap-mid span{letter-spacing:.34em;font-size:13.5px;white-space:nowrap}

/* ---------- 5. 修复：长条目横排挤成一团 → 改为均分网格 ---------- */
.base-strip.rows{display:block;padding:24px 30px}
.base-strip.rows .base-tt{display:block;text-align:center;margin-bottom:18px}
.base-strip.rows .base-items{display:grid;grid-template-columns:repeat(auto-fit,minmax(252px,1fr));gap:12px 26px}
.base-strip.rows .base-items i{display:none}
.base-strip.rows .base-items span{position:relative;padding-left:18px;font-size:13.6px;line-height:1.75}
.base-strip.rows .base-items span::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;background:linear-gradient(135deg,#2F7BFF,#18C2EE);transform:rotate(45deg)}

/* ---------- 6. 板块之间的呼吸：去掉连续金句造成的重复感 ---------- */
.quote{margin-top:24px}
.formula{margin-top:38px}
.footnote{margin-top:20px}
.experts{margin-top:46px}
.hero-stats{margin-top:48px;padding-top:32px}

/* ---------- 7. 标题排版精修 ---------- */
.sec-head h2{letter-spacing:-.005em}
.hero h1{letter-spacing:-.01em}
.sec-head p{max-width:680px;margin-left:auto;margin-right:auto}
.sec-head.split p{max-width:none}

/* ---------- 8. 响应式 ---------- */
@media (max-width:1080px){
  .sec-head.split{grid-template-columns:1fr;text-align:left;gap:14px}
  .sec-head.split p{grid-column:1;grid-row:auto;padding-left:0;border-left:0;padding-top:4px}
}
@media (max-width:900px){
  .gap-band{grid-template-columns:1fr}
}

/* =====================================================
   质感精修层 v9.1 —— 降噪 / 图标 / 色彩层次
===================================================== */

/* ---------- A. 标签降噪：全站数十个胶囊是最大的视觉噪音源 ---------- */
.biz-list li,.chips span,.skills span,.la-platforms span,.gov-chips span,.demo-chips button{
  border-color:rgba(126,168,255,.13);
  background:rgba(126,168,255,.055);
  color:#8FA8CE;
  font-weight:500;
  transition:.28s}
.biz-list li:hover,.chips span:hover,.la-platforms span:hover{
  border-color:rgba(90,162,255,.4);background:rgba(47,123,255,.13);color:#CFE0F8}
.biz-list{gap:7px}
.hero-chips span{border-color:rgba(126,168,255,.2);background:rgba(10,22,44,.4);color:#8FA8CE;font-weight:500}
.hero-chips span:hover{color:#E8F1FF;border-color:rgba(90,162,255,.5)}

/* ---------- B. 图标升级：渐变描边 + 内发光，摆脱「纯色方块」 ---------- */
.card-ic,.step-ic{position:relative;background:linear-gradient(160deg,rgba(47,123,255,.2),rgba(24,194,238,.07));border:0;
  box-shadow:inset 0 0 0 1px rgba(122,190,255,.26),inset 0 1px 0 rgba(255,255,255,.1),0 8px 22px -12px rgba(47,123,255,.6)}
.card-ic::after,.step-ic::after{content:"";position:absolute;inset:0;border-radius:inherit;
  background:radial-gradient(70% 70% at 30% 20%,rgba(255,255,255,.14),transparent 70%);pointer-events:none}
.card-ic .ic,.step-ic .ic{position:relative;z-index:1;filter:drop-shadow(0 0 10px rgba(90,162,255,.55))}
.card:hover .card-ic{box-shadow:inset 0 0 0 1px rgba(122,190,255,.5),inset 0 1px 0 rgba(255,255,255,.16),0 12px 30px -10px rgba(47,123,255,.8)}

/* ---------- C. 色彩层次：按板块轮换强调色，避免通篇一个蓝 ---------- */
#scenes .card-ic{background:linear-gradient(160deg,rgba(24,194,238,.22),rgba(47,123,255,.07))}
#scenes .card-ic .ic{color:#3FDCF8}
#cost .card-ic,#cost .ls b{--grad:linear-gradient(100deg,#3E7BFF 0%,#7A8CFF 100%)}
#lightai .card-ic{background:linear-gradient(160deg,rgba(122,140,255,.24),rgba(47,123,255,.07))}
#lightai .card-ic .ic,.la-cap .card-ic .ic{color:#9AA8FF}
#workshop .step-ic{background:linear-gradient(160deg,rgba(24,194,238,.2),rgba(47,123,255,.08))}
#workshop .step-ic .ic{color:#3FDCF8}

/* ---------- D. 卡片主次：首卡略提亮，打破「平均排布」 ---------- */
.grid-3>.card:first-child,.biz-grid>.card:first-child{
  background:linear-gradient(180deg,rgba(28,52,94,.8),rgba(14,29,55,.55));
  border-color:rgba(126,168,255,.26)}

/* ---------- E. 数字与英文：等宽科技字形 ---------- */
.num,.am-num,.calc-out b,.ls b,.card-no,.biz-no,.step-no,.sec-label,.sec-num,.coop-mode,.base-tt{
  font-feature-settings:"tnum" 1,"ss01" 1}
.sec-label{font-size:12px;letter-spacing:.26em}

/* ---------- F. 板块区隔：交替背景更明确 ---------- */
.section-alt{background:linear-gradient(180deg,rgba(47,123,255,.085),rgba(24,194,238,.02) 60%,transparent)}

/* ---------- G. 分隔线与引用：弱化重复的「金句」条 ---------- */
.quote{font-size:clamp(.98rem,1.7vw,1.14rem);color:#B8CBE8}
.gap-conclusion{font-size:clamp(1rem,1.7vw,1.18rem)}
.footnote{font-size:12px;line-height:1.9}

/* ---------- H. 节奏收尾：板块间距与数据卡注释 ---------- */
.section{padding:clamp(54px,5.4vw,78px) 0}
.ls{padding:24px 18px 20px}
.ls span{margin-top:12px;font-size:12.5px;color:#93A8C8;line-height:1.65}
.ls span br{content:"";display:block;margin-top:5px}
.loss-grid{margin-top:36px}
.calc-box{margin-top:38px}
.experts{margin-top:40px}
.ai-demo{margin:44px 0 22px}
.tri{margin-bottom:40px}
.ws-grid{margin-top:38px}
.base-strip{margin-top:38px}

/* =====================================================
   平台二级页 & 首页入口
===================================================== */
.deep-entry{display:flex;align-items:center;justify-content:space-between;gap:26px;margin-top:26px;
  padding:26px 32px;border-radius:18px;border:1px solid rgba(90,162,255,.3);
  background:linear-gradient(100deg,rgba(47,123,255,.15),rgba(24,194,238,.06));
  transition:.32s;position:relative;overflow:hidden}
.deep-entry::after{content:"";position:absolute;inset:0;border-radius:inherit;
  background:radial-gradient(420px circle at var(--mx,80%) var(--my,50%),rgba(90,162,255,.16),transparent 65%);opacity:0;transition:.35s}
.deep-entry:hover{transform:translateY(-3px);border-color:rgba(90,162,255,.6);box-shadow:0 26px 60px -28px rgba(47,123,255,.6)}
.deep-entry:hover::after{opacity:1}
.de-txt{position:relative;z-index:1}
.de-txt b{display:block;font-size:16.5px;color:#F0F6FF;margin-bottom:6px}
.de-txt span{font-size:13.5px;color:var(--muted);line-height:1.7}
.de-go{position:relative;z-index:1;flex:none;display:inline-flex;align-items:center;gap:9px;font-size:14.5px;font-weight:700;
  color:#fff;padding:11px 22px;border-radius:12px;background:var(--grad);box-shadow:var(--glow);transition:.3s}
.deep-entry:hover .de-go{gap:13px}

.page-hero{padding-top:clamp(112px,11vw,150px)}
.back-link{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:#9FC4FF;
  padding:8px 16px;border-radius:99px;border:1px solid var(--line);background:rgba(10,22,44,.5);transition:.28s}
.back-link .ic{width:1.05em;height:1.05em;transform:rotate(180deg)}
.back-link:hover{border-color:rgba(90,162,255,.5);color:#E8F1FF;background:rgba(47,123,255,.12)}
.page-hero .sec-num{color:#79ACFF}
@media (max-width:760px){
  .deep-entry{flex-direction:column;align-items:flex-start;gap:18px;padding:24px}
  .de-go{width:100%;justify-content:center}
}

/* =====================================================
   配色提亮 v12 —— 深邃但不压抑，强化 AI 光感
   原 #050B17 亮度仅 4%，接近纯黑；提到 8-9% 的深海蓝，
   同时加强蓝紫/青的光晕层次，让「科技感」来自光而不是黑
===================================================== */
:root{
  --bg:#0A1424;
  --bg-2:#0E1C33;
  --panel:rgba(24,45,82,.55);
  --panel-2:rgba(27,50,90,.92);
  --line:rgba(132,176,255,.16);
  --line-strong:rgba(132,176,255,.36);
  --txt:#DCE8FB;
  --muted:#A3B8DC;
  --dim:#7C90B5;
  --blue-2:#6AADFF;
  --cyan:#3ADCF7;
  --glow:0 18px 50px -16px rgba(47,123,255,.6);
}
/* 背景：提亮 + 更明显的蓝紫渐层 */
.bg-fx{background:
  radial-gradient(1200px 700px at 82% -10%,rgba(60,140,255,.22),transparent 62%),
  radial-gradient(980px 640px at -12% 26%,rgba(36,200,240,.13),transparent 62%),
  radial-gradient(900px 620px at 45% 108%,rgba(122,140,255,.16),transparent 62%),
  linear-gradient(180deg,#0A1424 0%,#0C1830 48%,#091628 100%)}
.orb{opacity:.62}
.orb-a{background:radial-gradient(circle,rgba(60,140,255,.28),transparent 65%)}
.orb-b{background:radial-gradient(circle,rgba(36,200,240,.2),transparent 65%)}
.orb-c{background:radial-gradient(circle,rgba(128,146,255,.22),transparent 65%)}
.bg-grid{background:
  linear-gradient(rgba(132,176,255,.075) 1px,transparent 1px),
  linear-gradient(90deg,rgba(132,176,255,.075) 1px,transparent 1px);
  background-size:56px 56px}

/* 卡片与面板：跟着提亮，保持层次差 */
.card{background:linear-gradient(180deg,rgba(30,56,100,.62),rgba(20,40,74,.42));border-color:rgba(132,176,255,.18)}
.grid-3>.card:first-child,.biz-grid>.card:first-child{background:linear-gradient(180deg,rgba(40,72,126,.72),rgba(24,46,86,.5));border-color:rgba(132,176,255,.3)}
.expert,.step{background:linear-gradient(180deg,rgba(30,56,100,.62),rgba(20,40,74,.44))}
.pit,.coop,.ls,.la-cap,.am-card,.ws-col,.tri-item,.mini,.gap-band,.formula,.base-strip{background:rgba(24,45,82,.5)}
.console-win{background:linear-gradient(180deg,#0C1A31,#0A1628)}
.con-head{background:rgba(60,140,255,.09)}
.ai-demo{background:linear-gradient(180deg,rgba(26,48,88,.9),rgba(18,36,66,.86))}
.demo-step,.agent,.gov-chips span,.hero-badge,.hero-chips span,.back-link{background:rgba(16,32,58,.72)}
.nav.scrolled{background:rgba(9,18,34,.84)}
.footer{background:linear-gradient(180deg,#0A1424,#060E1C)}
.boundary{background:rgba(16,32,58,.55)}
.contact-box{background:
  radial-gradient(760px 340px at 50% -80px,rgba(60,140,255,.26),transparent 70%),
  linear-gradient(180deg,rgba(28,52,94,.85),rgba(18,36,66,.7))}
.sec-band{background:linear-gradient(180deg,rgba(60,140,255,.12),rgba(18,36,66,.42))}
.section-alt{background:linear-gradient(180deg,rgba(60,140,255,.1),rgba(36,200,240,.025) 60%,transparent)}
.c-msg.ai,#aiChatGreet{background:#132445}
#aiChatPanel{background:linear-gradient(180deg,#102039,#0B172C)}
#aiChatInput{background:rgba(14,28,52,.9)}
.demo-chips button{background:rgba(16,32,58,.72)}
.calc-in input{background:rgba(255,255,255,.055)}
.page-hero{padding-top:clamp(108px,10.5vw,142px);padding-bottom:0}
.page-hero .sec-head.split{grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);padding-bottom:22px}

/* =====================================================
   导航二级菜单（下拉）
===================================================== */
.mi{position:relative}
.mi>.mi-top{display:inline-flex;align-items:center;gap:5px}
.mi-caret{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;
  transition:transform .28s;opacity:.7}
.mi:hover>.mi-top .mi-caret,.mi.open>.mi-top .mi-caret{transform:rotate(180deg);opacity:1}
.mi:hover>.mi-top,.mi.open>.mi-top{color:#F0F6FF;background:rgba(47,123,255,.1)}

.sub{position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%) translateY(-8px);
  min-width:286px;padding:10px;border-radius:16px;z-index:120;
  background:rgba(12,24,45,.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid rgba(132,176,255,.22);box-shadow:0 30px 70px -24px rgba(2,8,20,.9),0 0 0 1px rgba(47,123,255,.07);
  opacity:0;visibility:hidden;pointer-events:none;transition:opacity .26s,transform .26s,visibility .26s}
/* 鼠标从菜单项移到面板的过渡区，避免中途关闭 */
.sub::before{content:"";position:absolute;left:0;right:0;top:-14px;height:14px}
.mi:hover>.sub,.mi.open>.sub,.mi:focus-within>.sub{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.sub a{display:block;padding:11px 14px;border-radius:11px;white-space:normal;transition:.22s}
.sub a:hover{background:rgba(47,123,255,.15)}
.sub a b{display:block;font-size:14px;font-weight:600;color:#DCE8FB;line-height:1.5}
.sub a span{display:block;font-size:12px;color:var(--dim);line-height:1.55;margin-top:2px}
.sub a:hover b{color:#F0F6FF}
.sub a:hover span{color:var(--muted)}

@media (max-width:900px){
  /* 侧边栏里直接摊开二级项，不用点两次 */
  .mi{width:100%}
  .mi>.mi-top{width:100%;justify-content:space-between}
  .mi>.mi-top .mi-caret{display:none}
  .sub{position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;
    min-width:0;width:100%;padding:2px 0 6px 12px;margin-top:2px;
    background:none;backdrop-filter:none;-webkit-backdrop-filter:none;border:0;box-shadow:none;
    border-left:1px solid var(--line);border-radius:0}
  .sub::before{display:none}
  .sub a{padding:9px 12px;font-size:15px}
  .sub a b{font-size:14.5px}
  .sub a span{display:none}
}

/* 标题里的强调词不许在词中间断行（中文排版） */
.sec-head h2 em,.hero h1 em,.contact-box h2 em{white-space:nowrap}
.sec-head.split{grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr)}

/* ---------- 实证数据看板：2×2 大数字 ---------- */
.case-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-content:center}
.case-stats .mini{margin-bottom:0;padding:20px 20px 18px;text-align:center}
.case-stats .mini b{font-size:clamp(1.5rem,2.6vw,2rem);font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:8px;letter-spacing:.01em}
.case-stats .mini span{font-size:12.5px;line-height:1.7;color:var(--dim)}
@media (max-width:600px){.case-stats{grid-template-columns:1fr}}

/* =====================================================
   Multi-Agent 推理实况 / 技术硬指标 / 模型矩阵
===================================================== */
.reason{margin-top:26px;border-radius:22px;border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(26,48,88,.86),rgba(16,32,60,.8));
  box-shadow:0 30px 80px -40px rgba(2,8,20,.8);overflow:hidden}
.reason-head{display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 24px;border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,rgba(47,123,255,.14),rgba(24,194,238,.05))}
.reason-title{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:#F0F6FF}
.reason-title .ic{color:var(--blue-2)}
.reason-run{display:inline-flex;align-items:center;gap:8px;font-size:11.5px;font-weight:800;
  letter-spacing:.2em;color:#4ADE80;background:rgba(74,222,128,.1);
  border:1px solid rgba(74,222,128,.34);padding:5px 13px;border-radius:99px}
.reason-run i{width:7px;height:7px;border-radius:50%;background:#4ADE80;animation:pulse 1.8s infinite}

.reason-task{display:flex;align-items:flex-start;gap:14px;margin:20px 24px 4px;
  padding:14px 18px;border-radius:13px;background:rgba(47,123,255,.08);
  border:1px solid rgba(90,162,255,.22)}
.rt-label{flex:none;font-size:11px;font-weight:800;letter-spacing:.18em;color:#79ACFF;
  padding:4px 10px;border-radius:6px;background:rgba(10,22,44,.7);margin-top:1px}
.reason-task b{font-size:14.5px;color:#E3EDFC;font-weight:600;line-height:1.6}

.reason-flow{padding:18px 24px 6px}
.rnode{position:relative;padding:16px 18px;border-radius:14px;
  background:rgba(12,26,50,.72);border:1px solid var(--line);
  opacity:.34;transform:translateY(6px);transition:opacity .45s,transform .45s,border-color .45s}
.rnode.on{opacity:1;transform:none;border-color:rgba(90,162,255,.45)}
.rnode.done{opacity:1;transform:none;border-color:rgba(74,222,128,.3)}
.rn-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:9px}
.rn-tag{font-size:11px;font-weight:800;letter-spacing:.14em;color:#9FC4FF;
  padding:4px 11px;border-radius:6px;background:rgba(47,123,255,.16);border:1px solid rgba(90,162,255,.28)}
.rn-tag-b{color:#3FDCF8;background:rgba(39,211,245,.14);border-color:rgba(39,211,245,.3)}
.rn-tag-c{color:#9AA8FF;background:rgba(122,140,255,.16);border-color:rgba(122,140,255,.32)}
.rn-tag-d{color:#FFBE6B;background:rgba(249,160,60,.14);border-color:rgba(249,160,60,.32)}
.rn-tag-e{color:#5BE39B;background:rgba(74,222,128,.13);border-color:rgba(74,222,128,.3)}
.rn-time{font-size:12px;font-variant-numeric:tabular-nums;color:var(--dim);letter-spacing:.02em}
.rnode.done .rn-time{color:#5BE39B}
.rnode b{display:block;font-size:14.5px;color:#F0F6FF;margin-bottom:5px}
.rnode p{font-size:12.8px;color:var(--muted);line-height:1.68}
.rnode p em{font-style:normal;color:#9FC4FF;font-weight:600}
.rn-bar{height:2px;border-radius:2px;background:rgba(126,168,255,.13);margin-top:11px;overflow:hidden}
.rn-bar i{display:block;height:100%;width:0;border-radius:2px;background:var(--grad);transition:width .7s ease}
.rnode.on .rn-bar i,.rnode.done .rn-bar i{width:100%}

.rnode-plan{border-left:3px solid rgba(90,162,255,.6)}
.rnode-out{border-left:3px solid rgba(74,222,128,.5)}
.rnode-group{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.rflow-arrow{display:flex;justify-content:center;padding:9px 0;color:rgba(126,168,255,.4)}
.rflow-arrow .ic{width:19px;height:19px;transform:rotate(90deg)}
.reason-flow>.rnode{margin-bottom:0}

.reason-foot{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin:14px 24px 22px;padding:14px 20px;border-radius:13px;
  background:linear-gradient(90deg,rgba(74,222,128,.1),rgba(47,123,255,.06));
  border:1px solid rgba(74,222,128,.26);font-size:13px;color:var(--muted);
  animation:feedin .5s ease}
.reason-foot b{color:#E3EDFC;font-variant-numeric:tabular-nums}
.rf-ok{font-weight:800;color:#5BE39B;letter-spacing:.04em}
.rf-audit{margin-left:auto;font-size:12px;color:var(--dim)}

/* ---------- 技术硬指标 ---------- */
.techbar{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:22px}
.tb{padding:20px 16px;border-radius:14px;text-align:center;
  background:rgba(24,45,82,.5);border:1px solid var(--line);transition:.3s}
.tb:hover{border-color:rgba(90,162,255,.42);transform:translateY(-3px)}
.tb b{display:block;font-size:clamp(1.15rem,2.1vw,1.55rem);font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;letter-spacing:.01em}
.tb b i{font-style:normal;font-size:.6em;margin-left:1px}
.tb span{display:block;margin-top:8px;font-size:12.5px;color:var(--dim)}

/* ---------- 模型矩阵 ---------- */
.models{margin-top:22px;padding:24px 28px;border-radius:18px;
  border:1px dashed var(--line-strong);background:rgba(24,45,82,.38)}
.models-head b{display:block;font-size:15.5px;color:#F0F6FF;margin-bottom:6px}
.models-head span{display:block;font-size:13px;color:var(--muted);line-height:1.75}
.models-grid{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px}
.models-grid span{font-size:13px;color:#9FC4FF;padding:7px 16px;border-radius:9px;
  background:rgba(47,123,255,.09);border:1px solid rgba(90,162,255,.2);transition:.26s}
.models-grid span:hover{border-color:rgba(90,162,255,.5);color:#E8F1FF;background:rgba(47,123,255,.16);transform:translateY(-2px)}
.models-grid span:last-child{background:var(--grad);color:#fff;border-color:transparent;font-weight:600}

@media (max-width:900px){
  .rnode-group{grid-template-columns:1fr}
  .techbar{grid-template-columns:repeat(2,1fr)}
  .reason-task{flex-direction:column;gap:9px}
  .rf-audit{margin-left:0}
}
@media (max-width:600px){
  .techbar{grid-template-columns:1fr 1fr}
  .reason-head{flex-direction:column;align-items:flex-start}
}
.reason-note{margin:0 24px 20px;font-size:11.5px;color:var(--dim);line-height:1.75}

/* ---------- 多页面：面包屑 ---------- */
.crumb-wrap{padding-top:calc(76px + 2.6vw)}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:9px;font-size:13px;color:#6E86AC}
.crumb a{color:#9FC4FF;transition:.25s}
.crumb a:hover{color:#E8F1FF}
.crumb i{font-style:normal;opacity:.42}
.crumb b{font-weight:500;color:#C7D8F2}
.crumb-wrap + .section{padding-top:clamp(26px,3.2vw,42px)}
[id]{scroll-margin-top:104px}

/* ---------- 首页：分类门户 ---------- */
.portal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
a.pt-card{display:flex;flex-direction:column;gap:10px;padding:28px 28px 24px;color:inherit;text-decoration:none}
.pt-card .card-ic{margin-bottom:2px}
.pt-card h3{font-size:17.5px;margin:0}
.pt-card p{font-size:13.2px;color:var(--muted);line-height:1.75;flex:1;margin:0}
.pt-go{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:#9FC4FF;font-weight:600;transition:.25s}
.pt-go .ic{width:1.05em;height:1.05em}
.pt-card:hover .pt-go{gap:12px;color:#E8F1FF}
.pt-hot{position:absolute;top:18px;right:20px;z-index:2;font-size:11px;letter-spacing:.08em;color:#7DD3FC;
  padding:4px 11px;border-radius:99px;border:1px solid rgba(56,189,248,.42);background:rgba(39,211,245,.1)}

/* ---------- 首页：主打方向横幅（原材料降本） ---------- */
.flag{position:relative;display:block;text-decoration:none;color:inherit;margin-top:0;border-radius:22px;overflow:hidden;
  border:1px solid rgba(90,162,255,.3);background:linear-gradient(120deg,rgba(47,123,255,.16),rgba(10,22,44,.55) 55%,rgba(24,194,238,.1));
  padding:clamp(30px,4.6vw,52px);transition:.35s}
.flag::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:.4s;
  background:radial-gradient(560px 220px at 88% 12%,rgba(24,194,238,.16),transparent 70%)}
.flag:hover{transform:translateY(-3px);border-color:rgba(90,162,255,.6);box-shadow:0 28px 64px -28px rgba(47,123,255,.6)}
.flag:hover::after{opacity:1}
.flag-in{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center}
.flag-tt{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;font-weight:700;letter-spacing:.28em;color:#7DD3FC;text-transform:uppercase}
.flag h3{font-size:clamp(22px,3vw,30px);margin:14px 0 10px;color:#F0F6FF;letter-spacing:-.01em}
.flag h3 em{font-style:normal;background:linear-gradient(90deg,#5B9BFF,#37D6F2);-webkit-background-clip:text;background-clip:text;color:transparent}
.flag p{font-size:14px;color:var(--muted);line-height:1.85;margin:0}
.flag-stats{display:flex;flex-direction:column;gap:14px}
.flag-stats .fs{display:flex;align-items:baseline;gap:12px;padding:13px 18px;border-radius:13px;
  background:rgba(13,26,50,.62);border:1px solid var(--line)}
.flag-stats .fs b{font-size:20px;white-space:nowrap;background:linear-gradient(90deg,#5B9BFF,#37D6F2);-webkit-background-clip:text;background-clip:text;color:transparent}
.flag-stats .fs span{font-size:12.5px;color:var(--dim);line-height:1.6}
.flag-go{display:inline-flex;align-items:center;gap:9px;margin-top:20px;font-size:14px;font-weight:700;color:#D6E7FF;
  padding:12px 22px;border-radius:12px;border:1px solid rgba(90,162,255,.5);background:rgba(47,123,255,.16);width:max-content;transition:.3s}
.flag:hover .flag-go{gap:14px;background:rgba(47,123,255,.28)}

/* ---------- 首页：落地实证数据带 ---------- */
.proof{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.proof .mini{margin-bottom:0;padding:20px 18px 18px;text-align:center}
.proof .mini b{display:block;font-size:24px;margin-bottom:8px;background:linear-gradient(90deg,#5B9BFF,#37D6F2);-webkit-background-clip:text;background-clip:text;color:transparent}
.proof-link{display:flex;justify-content:center;margin-top:22px}
.proof-link a{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:#9FC4FF;transition:.25s}
.proof-link a:hover{gap:13px;color:#E8F1FF}

@media (max-width:900px){
  .portal-grid{grid-template-columns:1fr 1fr}
  .flag-in{grid-template-columns:1fr;gap:24px}
  .proof{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .portal-grid{grid-template-columns:1fr}
  .crumb{font-size:12px}
}