/* ============ 基础 ============ */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#f6f8fc; --panel:rgba(255,255,255,.7); --line:rgba(15,23,42,.08);
  --c1:#6366f1; --c2:#a855f7; --c3:#0891b2; --c4:#db2777; --ok:#059669;
  --txt:#1e293b; --dim:#64748b; --faint:#94a3b8;
}
html{scroll-behavior:smooth}
body{font-family:"Inter","SF Pro Display",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--txt);overflow-x:hidden}
a{text-decoration:none;color:inherit}

@keyframes auroraA{0%,100%{transform:translate(-18%,-18%) scale(1)}33%{transform:translate(28%,12%) scale(1.4)}66%{transform:translate(8%,28%) scale(.88)}}
@keyframes auroraB{0%,100%{transform:translate(18%,8%) scale(1)}33%{transform:translate(-28%,18%) scale(1.28)}66%{transform:translate(-8%,-18%) scale(.95)}}
@keyframes gridFlow{from{background-position:0 0}to{background-position:56px 56px}}
@keyframes marqueeX{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes scanY{0%{top:-8%}100%{top:108%}}
@keyframes radar{from{transform:rotate(0)}to{transform:rotate(360deg)}}
@keyframes dashFlow{to{stroke-dashoffset:-48}}
@keyframes pulse{0%,100%{opacity:.45}50%{opacity:1}}
@keyframes blink{50%{opacity:0}}
@keyframes borderRotate{to{transform:rotate(360deg)}}
@keyframes equalize{0%,100%{transform:scaleY(.35)}50%{transform:scaleY(1)}}
@keyframes typingDots{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}
@keyframes cubeSpin{0%{transform:rotateX(-18deg) rotateY(0)}100%{transform:rotateX(-18deg) rotateY(360deg)}}

/* 进度 + HUD */
.scroll-progress{position:fixed;top:0;left:0;height:2px;z-index:120;background:linear-gradient(90deg,var(--c1),var(--c2),var(--c3));width:0}
.hud-coord{position:fixed;z-index:90;font-family:ui-monospace,Menlo,monospace;font-size:10px;color:var(--faint);letter-spacing:.12em;pointer-events:none}
.hud-coord.tl{top:76px;left:20px}.hud-coord.br{bottom:20px;right:20px}
.hud-coord .val{color:var(--c3)}

/* 背景 */
.bg-layer{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.grid-bg{position:absolute;inset:0;opacity:.05;animation:gridFlow 3s linear infinite;background-image:linear-gradient(rgba(120,150,220,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(120,150,220,.6) 1px,transparent 1px);background-size:56px 56px}
.aurora{position:absolute;border-radius:50%;filter:blur(130px)}
.aurora-1{width:620px;height:620px;top:-230px;left:-200px;background:rgba(99,102,241,.3);animation:auroraA 13s ease-in-out infinite}
.aurora-2{width:540px;height:540px;top:25%;right:-190px;background:rgba(34,211,238,.15);animation:auroraB 17s ease-in-out infinite}
.aurora-3{width:540px;height:540px;bottom:-190px;left:24%;background:rgba(168,85,247,.2);animation:auroraA 21s ease-in-out infinite reverse}
.scanline{position:absolute;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(99,102,241,.55),transparent);animation:scanY 5s linear infinite}
#matrix{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.11}
#particles{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.8}
.mouse-glow{position:fixed;z-index:1;width:340px;height:340px;border-radius:50%;pointer-events:none;left:-999px;top:-999px;background:radial-gradient(circle,rgba(99,102,241,.13) 0%,rgba(34,211,238,.04) 45%,transparent 70%);transition:left .18s ease-out,top .18s ease-out}

/* 内容层 */
.content{position:relative;z-index:10}

/* ============ 三页独立主题 ============ */
/* ① 软件开发 · 工业科技蓝 */
.page.p-dev{
  --c1:#2563eb; --c2:#0891b2; --c3:#0284c7; --c4:#06b6d4; --ok:#059669;
  --bg:#f4f8ff; --line:rgba(37,99,235,.14); --dim:#64748b; --faint:#94a3b8;
}
.page.p-dev .beam-card{border-radius:6px}
.page.p-dev .beam-card .inner{border-radius:5px;border:1px solid rgba(37,99,235,.12);background:rgba(255,255,255,.92);box-shadow:0 10px 30px -15px rgba(37,99,235,.15)}
.page.p-dev .icon-box{border-radius:6px;background:rgba(37,99,235,.08);border-color:rgba(37,99,235,.25);color:var(--c1)}
.page.p-dev .micro-label{color:var(--c3)}
.page.p-dev .btn-primary{background:linear-gradient(135deg,#2563eb,#06b6d4)}
.page.p-dev .stat-cell .num b{color:var(--c3)}
.page.p-dev .chip{color:#0284c7;border-color:rgba(2,132,199,.25);background:rgba(56,189,248,.08)}
.page.p-dev .stat-cell{background:rgba(255,255,255,.85);border-color:rgba(37,99,235,.12)}
.p-dev-deco{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:0}
.p-dev-deco code{position:absolute;font-family:ui-monospace,Menlo,monospace;font-size:11px;color:rgba(37,99,235,.14);line-height:1.8;white-space:pre}
.p-dev-deco .bracket{position:absolute;font-size:180px;font-weight:900;color:rgba(37,99,235,.06);font-family:ui-monospace,Menlo,monospace}
.p-dev .page-inner{position:relative;z-index:1}

/* ② Fusion 管家 · 紫罗兰智能助手 */
.page.p-fusion{
  --c1:#7c3aed; --c2:#db2777; --c3:#7c3aed; --c4:#db2777; --ok:#059669;
  --bg:#faf7ff; --line:rgba(124,58,237,.14); --dim:#64748b; --faint:#94a3b8;
}
.page.p-fusion .beam-card{border-radius:20px}
.page.p-fusion .beam-card .inner{border-radius:19px;background:rgba(255,255,255,.92);border:1px solid rgba(124,58,237,.12);box-shadow:0 10px 30px -15px rgba(124,58,237,.18)}
.page.p-fusion .icon-box{border-radius:14px;background:rgba(124,58,237,.08);border-color:rgba(167,139,250,.35);color:var(--c1)}
.page.p-fusion .micro-label{color:var(--c1)}
.page.p-fusion .btn-primary{background:linear-gradient(135deg,#8b5cf6,#ec4899)}
.page.p-fusion .stat-cell .num b{color:var(--c1)}
.page.p-fusion .chip{color:#7c3aed;border-color:rgba(124,58,237,.25);background:rgba(139,92,246,.08)}
.page.p-fusion .stat-cell{background:rgba(255,255,255,.85);border-color:rgba(124,58,237,.12)}
.p-fusion-deco{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:0}
.p-fusion-deco .orb{position:absolute;border-radius:50%;border:1px solid rgba(124,58,237,.15);animation:orbitSpin 40s linear infinite}
.p-fusion-deco .orb::after{content:"";position:absolute;top:-4px;left:50%;width:8px;height:8px;border-radius:50%;background:rgba(219,39,119,.6);box-shadow:0 0 14px rgba(219,39,119,.6)}
@keyframes orbitSpin{from{transform:rotate(0)}to{transform:rotate(360deg)}}
.p-fusion-deco .spark{position:absolute;width:5px;height:5px;border-radius:50%;background:rgba(124,58,237,.5);animation:sparkFloat 5s ease-in-out infinite}
@keyframes sparkFloat{0%,100%{transform:translateY(0);opacity:.3}50%{transform:translateY(-26px);opacity:1}}
.p-fusion .page-inner{position:relative;z-index:1}

/* ③ 智汇教育 · 翡翠教育成长 */
.page.p-edu{
  --c1:#059669; --c2:#d97706; --c3:#059669; --c4:#d97706; --ok:#059669;
  --bg:#f2faf6; --line:rgba(5,150,105,.15); --dim:#64748b; --faint:#94a3b8;
}
.page.p-edu .beam-card{border-radius:18px}
.page.p-edu .beam-card .inner{border-radius:17px;background:rgba(255,255,255,.92);border:1px solid rgba(5,150,105,.12);box-shadow:0 10px 30px -15px rgba(5,150,105,.16)}
.page.p-edu .icon-box{border-radius:12px;background:rgba(5,150,105,.08);border-color:rgba(52,211,153,.35);color:var(--c1)}
.page.p-edu .micro-label{color:var(--c1)}
.page.p-edu .btn-primary{background:linear-gradient(135deg,#059669,#d97706)}
.page.p-edu .stat-cell .num b{color:var(--c1)}
.page.p-edu .chip{color:#047857;border-color:rgba(5,150,105,.25);background:rgba(16,185,129,.08)}
.page.p-edu .stat-cell{background:rgba(255,255,255,.85);border-color:rgba(5,150,105,.12)}
.page.p-edu .beam-card .inner{border-top:2px solid rgba(5,150,105,.25)}
.p-edu-deco{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:0}
.p-edu-deco .book{position:absolute;font-size:64px;opacity:.08;filter:grayscale(.3)}
.p-edu-deco .floatbook{position:absolute;font-size:26px;opacity:.18;animation:bookFloat 6s ease-in-out infinite}
@keyframes bookFloat{0%,100%{transform:translateY(0) rotate(-4deg)}50%{transform:translateY(-20px) rotate(5deg)}}
.p-edu-deco .dotgrid{position:absolute;inset:0;background-image:radial-gradient(circle,rgba(5,150,105,.18) 1px,transparent 1.5px);background-size:30px 30px;opacity:.4}
.p-edu .page-inner{position:relative;z-index:1}


.wrap{max-width:1160px;margin:0 auto;padding:0 24px}
.page{display:none;padding-bottom:40px;background:var(--bg);transition:background .4s}
.page.active{display:block;animation:pageIn .5s cubic-bezier(.22,1,.36,1)}
@keyframes pageIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

/* Navbar */
.nav{position:sticky;top:0;z-index:60;height:62px;display:flex;align-items:center;padding:0 28px;border-bottom:1px solid var(--line);background:rgba(3,5,16,.78);backdrop-filter:blur(24px)}
.nav::after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--c1) 20%,var(--c2) 50%,var(--c3) 80%,transparent);opacity:.5}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;letter-spacing:-.02em}
.logo-mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--c1),var(--c2));display:grid;place-items:center;font-size:15px;color:#fff;box-shadow:0 0 26px rgba(99,102,241,.6);position:relative}
.logo-mark::before{content:"";position:absolute;inset:-3px;border-radius:11px;border:1px solid rgba(34,211,238,.35);opacity:.7}
.nav-tabs{display:flex;gap:6px;margin-left:36px;background:var(--panel);border:1px solid var(--line);padding:4px;border-radius:11px}
.nav-tab{position:relative;padding:8px 18px;font-size:13px;color:var(--dim);cursor:pointer;border-radius:8px;transition:all .25s;border:1px solid transparent;font-weight:500}
.nav-tab:hover{color:#fff}
.nav-tab.active{background:linear-gradient(135deg,rgba(99,102,241,.22),rgba(168,85,247,.16));color:#fff;border-color:rgba(129,140,248,.4);box-shadow:0 0 18px rgba(99,102,241,.25)}
.nav-tab.active::after{content:"";position:absolute;bottom:3px;left:50%;transform:translateX(-50%);width:18px;height:2px;border-radius:2px;background:var(--c3);box-shadow:0 0 8px var(--c3)}
.nav-right{display:flex;align-items:center;gap:18px;margin-left:auto}
.lang{position:relative}
.lang-btn{display:flex;align-items:center;gap:6px;padding:7px 12px;border-radius:8px;background:var(--panel);border:1px solid var(--line);color:#a5b4fc;font-size:12px;cursor:pointer}
.lang-menu{position:absolute;right:0;top:112%;display:none;background:#0a0c1c;border:1px solid var(--line);border-radius:10px;min-width:170px;backdrop-filter:blur(20px);box-shadow:0 24px 60px rgba(0,0,0,.7);z-index:80}
.lang:hover .lang-menu{display:block}
.lang-menu a{display:block;padding:9px 16px;font-size:12px;color:var(--dim)}
.lang-menu a:hover{background:rgba(99,102,241,.14);color:#fff}
.btn{border-radius:9px;font-size:13px;font-weight:600;padding:9px 18px;transition:all .25s;position:relative;overflow:hidden;display:inline-flex;align-items:center;gap:8px}
.btn-ghost{background:var(--panel);border:1px solid var(--line);color:var(--txt)}
.btn-ghost:hover{border-color:rgba(34,211,238,.6);box-shadow:0 0 20px rgba(34,211,238,.2);color:#fff}
.btn-primary{background:linear-gradient(135deg,var(--c1),var(--c2));color:#fff;box-shadow:0 8px 30px rgba(99,102,241,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 44px rgba(168,85,247,.55)}
.btn-primary::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transform:translateX(-110%);transition:transform .6s}
.btn-primary:hover::after{transform:translateX(110%)}
@media(max-width:900px){.nav-tabs{margin-left:12px}.nav-tab{padding:7px 10px;font-size:12px}}

/* ============ 通用 ============ */
.hero{position:relative;padding:90px 24px 60px;overflow:hidden}
.micro-label{font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--c3);font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:10px;text-shadow:0 0 12px rgba(34,211,238,.6)}
.micro-label::before{content:"";width:34px;height:1px;background:var(--c3);box-shadow:0 0 8px var(--c3)}
.hero h1{font-size:clamp(36px,6vw,60px);font-weight:800;letter-spacing:-.03em;line-height:1.1;margin-bottom:16px}
.hero h1 .grad{background:linear-gradient(92deg,var(--c1),var(--c2) 35%,var(--c3) 75%,var(--c4));background-size:220% 220%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;animation:auroraA 5s ease-in-out infinite}
.hero .lead{color:var(--dim);font-size:15px;line-height:1.85;max-width:560px;margin-bottom:30px}
/* 分栏 Hero (① ② 页使用, 布局各不相同) */
.hero-split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;text-align:left;max-width:1160px;margin:0 auto;padding:50px 24px 20px}
.hero-split .hero-copy{position:relative}
.hero-split h1{font-size:clamp(34px,5vw,56px)}
.hero-split .lead{margin-bottom:28px}
@media(max-width:960px){.hero-split{grid-template-columns:1fr;text-align:center}.hero-split .cta-row,.hero-split .sys-status{justify-content:center}}
.hero-center{text-align:center}
.hero-center .lead{margin:0 auto 30px}
.typewriter{font-size:clamp(16px,2.4vw,21px);color:var(--dim);height:36px;margin-bottom:20px}
.typewriter b{color:#c7d2fe;font-weight:600}
.caret{display:inline-block;width:2px;height:1.05em;background:var(--c3);margin-left:3px;vertical-align:middle;animation:blink 1s steps(1) infinite;box-shadow:0 0 8px var(--c3)}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}
.hero-copy .btn{padding:13px 26px;font-size:14px;border-radius:11px}

.sec-head{margin-bottom:46px}
.sec-head.center{text-align:center}
.sec-kicker{font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--c3);font-weight:600;margin-bottom:12px;display:flex;align-items:center;gap:10px;text-shadow:0 0 12px rgba(34,211,238,.4)}
.sec-head.center .sec-kicker{justify-content:center}
.sec-kicker::before{content:"";width:28px;height:1px;background:var(--c3);box-shadow:0 0 8px var(--c3)}
.sec-head.center .sec-kicker::before{display:none}
.sec-title{font-size:clamp(26px,4vw,42px);font-weight:800;letter-spacing:-.02em;line-height:1.15}
.sec-title .accent{background:linear-gradient(90deg,var(--c1),var(--c3));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.sec-sub{color:var(--dim);font-size:14px;line-height:1.8;max-width:560px;margin-top:10px}
.sec-head.center .sec-sub{margin:10px auto 0}
.section{padding:80px 0;position:relative}

/* 卡片 */
.beam-card{position:relative;border-radius:16px;padding:1px;overflow:hidden}
.beam-card .beam{position:absolute;inset:-40% auto auto 50%;width:50%;aspect-ratio:1;background:conic-gradient(from 0deg,transparent 0 338deg,var(--c1) 354deg,var(--c3) 360deg);animation:borderRotate 5s linear infinite;z-index:0}
.beam-card .inner{position:relative;z-index:1;border-radius:15px;background:rgba(7,10,22,.92);backdrop-filter:blur(20px);padding:26px;height:100%;transition:transform .35s}
.beam-card:hover .inner{transform:translateY(-5px)}
.beam-card .icon-box{width:46px;height:46px;border-radius:11px;background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.25);display:grid;place-items:center;margin-bottom:18px;color:var(--c3);position:relative;overflow:hidden}
.beam-card .icon-box svg{width:22px;height:22px;stroke-width:1.6}
.beam-card h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:8px}
.beam-card p{font-size:12.5px;color:var(--dim);line-height:1.75}
.beam-card .tag-row{display:flex;gap:6px;flex-wrap:wrap;margin-top:16px}
.beam-card .chip{font-size:10px;padding:3px 9px;border-radius:5px;background:rgba(34,211,238,.07);border:1px solid rgba(34,211,238,.22);color:#7dd3fc;font-family:ui-monospace,Menlo,monospace;letter-spacing:.06em}
.corner-frame{position:absolute;width:14px;height:14px;border:1.5px solid rgba(34,211,238,.55);z-index:2;opacity:0;transition:opacity .3s}
.beam-card:hover .corner-frame{opacity:1}
.corner-frame.tl{top:8px;left:8px;border-right:0;border-bottom:0;border-top-left-radius:5px}
.corner-frame.br{bottom:8px;right:8px;border-left:0;border-top:0;border-bottom-right-radius:5px}

.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-6{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:1000px){.grid-4,.grid-3,.grid-6{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid-4,.grid-3,.grid-6{grid-template-columns:1fr}}

/* 终端 */
.terminal{position:relative;border-radius:16px;background:rgba(7,10,24,.88);border:1px solid var(--line);overflow:hidden;box-shadow:0 44px 120px -34px rgba(0,0,0,.9),0 0 60px -20px rgba(99,102,241,.3)}
.term-bar{display:flex;align-items:center;gap:8px;padding:13px 16px;border-bottom:1px solid var(--line)}
.term-dot{width:11px;height:11px;border-radius:50%}
.term-bar .title{margin-left:10px;font-size:11px;color:var(--faint);font-family:ui-monospace,Menlo,monospace}
.term-bar .live{margin-left:auto;display:flex;align-items:center;gap:6px;font-family:ui-monospace,Menlo,monospace;font-size:10px;color:var(--ok);letter-spacing:.14em}
.term-bar .live i{width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 8px var(--ok);animation:pulse 1.3s infinite}
.term-body{padding:20px;font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:12.5px;line-height:2;min-height:270px}
.term-line{display:flex;gap:10px;opacity:0;animation:typeIn .5s forwards}
@keyframes typeIn{to{opacity:1}}
.term-line .t{color:var(--faint)}.term-line .u{color:var(--c3)}.term-line .b{color:#a5b4fc}.term-line .g{color:var(--ok)}.term-line .p{color:var(--c4)}.term-line .y{color:#fbbf24}
.term-cursor::after{content:"▊";color:var(--c3);animation:blink 1s steps(1) infinite}
.term-flash{position:absolute;top:0;left:-30%;width:30%;height:100%;background:linear-gradient(90deg,transparent,rgba(34,211,238,.07),transparent);animation:scanX 4.5s linear infinite}
@keyframes scanX{from{left:-30%}to{left:130%}}

/* 流程图步骤 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative}
.flow::before{content:"";position:absolute;top:26px;left:8%;right:8%;height:1px;background:linear-gradient(90deg,var(--c1),var(--c2),var(--c3));opacity:.4}
.step{position:relative;text-align:center;padding:20px}
.step .idx{width:52px;height:52px;margin:0 auto 14px;border-radius:14px;background:rgba(99,102,241,.1);border:1px solid rgba(129,140,248,.3);display:grid;place-items:center;font-size:20px;color:#c7d2fe;position:relative;z-index:1;box-shadow:0 0 24px rgba(99,102,241,.2)}
.step h4{font-size:14px;color:#fff;margin-bottom:6px}
.step p{font-size:12px;color:var(--faint);line-height:1.6}
@media(max-width:800px){.flow{grid-template-columns:repeat(2,1fr)}.flow::before{display:none}}

/* 统计 */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:44px}
.stat-cell{position:relative;padding:22px 18px;border-radius:13px;background:var(--panel);border:1px solid var(--line);overflow:hidden;font-family:ui-monospace,Menlo,monospace;transition:all .3s}
.stat-cell:hover{transform:translateY(-3px);border-color:rgba(34,211,238,.35);box-shadow:0 20px 50px -22px rgba(34,211,238,.35)}
.stat-cell .num{font-size:32px;font-weight:800;font-variant-numeric:tabular-nums}
.stat-cell .num b{color:var(--c3)}
.stat-cell .lbl{font-size:11px;color:var(--faint);margin-top:6px;letter-spacing:.1em;text-transform:uppercase}
@media(max-width:600px){.stat-row{grid-template-columns:repeat(2,1fr)}}

/* 跑马灯 */
.marquee-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.015);padding:15px 0;overflow:hidden;position:relative}
.marquee-track{display:flex;white-space:nowrap;animation:marqueeX 32s linear infinite;width:max-content}
.marquee-track span{display:inline-flex;align-items:center;gap:12px;padding:0 24px;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:rgba(165,180,252,.5)}
.marquee-track svg{width:13px;height:13px;color:rgba(34,211,238,.6)}
.marquee-bar::before,.marquee-bar::after{content:"";position:absolute;top:0;bottom:0;width:90px;z-index:2;pointer-events:none}
.marquee-bar::before{left:0;background:linear-gradient(90deg,var(--bg),transparent)}
.marquee-bar::after{right:0;background:linear-gradient(-90deg,var(--bg),transparent)}

/* 行业详细卡片 */
.ind-card{position:relative;border-radius:16px;border:1px solid var(--line);background:var(--panel);overflow:hidden;transition:all .3s;display:flex;flex-direction:column}
.ind-card:hover{border-color:rgba(34,211,238,.4);transform:translateY(-4px);box-shadow:0 24px 60px -24px rgba(34,211,238,.2)}
.ind-card .ind-head{display:flex;align-items:center;gap:12px;padding:20px 20px 14px;position:relative}
.ind-card .ind-head::after{content:"";position:absolute;left:20px;right:20px;bottom:0;height:1px;background:linear-gradient(90deg,rgba(34,211,238,.4),transparent)}
.ind-card .ind-icon{width:42px;height:42px;border-radius:11px;background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.25);display:grid;place-items:center;color:var(--c3);flex-shrink:0}
.ind-card .ind-icon svg{width:20px;height:20px;stroke-width:1.6}
.ind-card .ind-idx{margin-left:auto;font-family:ui-monospace,Menlo,monospace;font-size:12px;color:var(--faint);border:1px solid var(--line);padding:2px 8px;border-radius:6px}
.ind-card .ind-name{font-size:15px;font-weight:600;color:#fff}
.ind-card .ind-desc{font-size:11.5px;color:var(--faint);line-height:1.6;margin-top:2px;padding-right:14px}
.ind-card .ind-body{padding:14px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.ind-sub{position:relative;padding:10px 12px;border-radius:9px;background:rgba(255,255,255,.02);border:1px solid rgba(255,255,255,.06);transition:all .25s}
.ind-sub:hover{border-color:rgba(129,140,248,.4);background:rgba(99,102,241,.06)}
.ind-sub h5{font-size:12.5px;color:#c7d2fe;font-weight:600;display:flex;align-items:center;gap:7px;margin-bottom:3px}
.ind-sub h5::before{content:"▸";color:var(--c3);font-size:10px}
.ind-sub p{font-size:11.5px;color:var(--dim);line-height:1.65}
.ind-tag{font-family:ui-monospace,Menlo,monospace;font-size:9.5px;color:var(--c3);letter-spacing:.08em}

/* 列表行 */
.list-row{display:flex;align-items:center;gap:14px;padding:18px 20px;border:1px solid var(--line);border-radius:12px;background:var(--panel);transition:all .25s}
.list-row:hover{border-color:rgba(34,211,238,.4);transform:translateX(6px)}
.list-row .li-icon{width:40px;height:40px;border-radius:10px;background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.25);display:grid;place-items:center;color:var(--c3);flex-shrink:0}
.list-row .li-icon svg{width:20px;height:20px;stroke-width:1.6}
.list-row h4{font-size:14px;color:#fff;margin-bottom:3px}
.list-row p{font-size:12px;color:var(--dim)}
.list-row .li-idx{margin-left:auto;font-family:ui-monospace,Menlo,monospace;font-size:11px;color:var(--faint)}

/* Demo */
.demo-box{max-width:820px;margin:0 auto;border-radius:18px;background:rgba(7,10,22,.9);border:1px solid var(--line);overflow:hidden;position:relative}
.demo-body{padding:28px;min-height:210px}
.msg{display:flex;gap:12px;margin-bottom:20px;opacity:0;transform:translateY(12px)}
.msg.visible{animation:msgIn .5s cubic-bezier(.22,1,.36,1) forwards}
@keyframes msgIn{to{opacity:1;transform:none}}
.msg .ava{width:38px;height:38px;border-radius:11px;flex-shrink:0;display:grid;place-items:center;color:#fff}
.msg .ava svg{width:18px;height:18px}
.msg .bubble{padding:12px 16px;border-radius:12px;font-size:13.5px;line-height:1.7;max-width:82%}
.msg.user .bubble{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-top-left-radius:3px}
.msg.ai .bubble{background:rgba(99,102,241,.1);border:1px solid rgba(129,140,248,.3);border-top-left-radius:3px}
.msg.ai .role{font-size:11px;color:#a5b4fc;margin-bottom:5px;font-family:ui-monospace,Menlo,monospace}
.typing{display:inline-flex;gap:4px;padding:4px 0}
.typing i{width:5px;height:5px;border-radius:50%;background:#a5b4fc;animation:typingDots 1.2s infinite}
.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}
.demo-tabs{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;padding:16px;border-bottom:1px solid var(--line)}
.demo-tabs button{padding:6px 13px;border-radius:7px;font-size:11px;border:1px solid var(--line);background:transparent;color:var(--dim);cursor:pointer;font-family:ui-monospace,Menlo,monospace;transition:all .2s}
.demo-tabs button:hover{color:#fff;border-color:rgba(34,211,238,.5)}
.demo-tabs button.active{background:rgba(34,211,238,.1);border-color:rgba(34,211,238,.55);color:#7dd3fc}
.demo-loop{position:absolute;top:16px;right:18px;display:flex;align-items:center;gap:6px;font-size:10px;color:var(--ok);letter-spacing:.16em;font-family:ui-monospace,Menlo,monospace}
.demo-loop i{width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 8px var(--ok);animation:pulse 1.4s infinite}

/* FAQ */
.faq-wrap{max-width:760px;margin:0 auto}
.faq{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;background:var(--panel);overflow:hidden;transition:border-color .25s}
.faq:hover{border-color:rgba(34,211,238,.4)}
.faq summary{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;cursor:pointer;list-style:none;font-weight:500;font-size:14px}
.faq summary .q-num{font-family:ui-monospace,Menlo,monospace;font-size:11px;color:var(--c3);margin-right:14px}
.faq summary .plus{width:22px;height:22px;border-radius:6px;border:1px solid var(--line);display:grid;place-items:center;font-size:14px;color:var(--c3);transition:all .3s}
.faq[open] .plus{transform:rotate(45deg);background:rgba(34,211,238,.12);border-color:rgba(34,211,238,.5)}
.faq .ans{padding:0 22px 18px;font-size:13px;color:var(--dim);line-height:1.9}
.faq .ans b{color:#7dd3fc;font-weight:500}

/* CTA */
.cta-zone{position:relative;text-align:center;padding:80px 24px;border-radius:24px;overflow:hidden;border:1px solid var(--line);background:rgba(8,10,24,.55)}
.cta-zone .aurora-bg{position:absolute;inset:0;background:radial-gradient(ellipse at 50% 130%,rgba(99,102,241,.25),rgba(34,211,238,.08) 50%,transparent 70%);animation:pulse 4s ease-in-out infinite}
.cta-title{font-size:clamp(30px,5vw,50px);font-weight:800;letter-spacing:-.02em;position:relative;z-index:1;margin-bottom:14px}
.cta-title .grad{background:linear-gradient(90deg,var(--c1),var(--c2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.cta-sub{color:var(--dim);font-size:15px;position:relative;z-index:1;margin-bottom:30px}
.cta-zone .btn{padding:14px 32px;font-size:15px;border-radius:11px;position:relative;z-index:1}
.cta-checks{display:flex;justify-content:center;gap:26px;flex-wrap:wrap;margin-top:24px;position:relative;z-index:1}
.cta-checks span{font-size:12px;color:rgba(165,180,252,.75);font-family:ui-monospace,Menlo,monospace}
.cta-checks svg{width:13px;height:13px;color:var(--ok);vertical-align:-2px;margin-right:6px}

/* Footer */
footer{border-top:1px solid var(--line);padding:56px 0 32px;background:rgba(0,0,0,.35);backdrop-filter:blur(20px)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;margin-bottom:40px}
.foot-brand{display:flex;align-items:center;gap:10px;font-weight:700;margin-bottom:14px}
.foot-tag{color:var(--faint);font-size:13px;line-height:1.8;max-width:300px}
.foot-col h4{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--dim);margin-bottom:16px;font-family:ui-monospace,Menlo,monospace}
.foot-col a{display:block;font-size:13px;color:var(--faint);padding:5px 0;transition:color .2s;cursor:pointer}
.foot-col a:hover{color:#7dd3fc}
.foot-bottom{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:12px;color:var(--faint)}
.foot-bottom svg{width:13px;height:13px;color:var(--ok);vertical-align:-2px}
@media(max-width:800px){.foot-grid{grid-template-columns:1fr}}/* ============ 白色主题修正 ============ */
body{background:var(--bg);color:var(--txt)}
/* 固定背景层在白色下的调整 */
.bg-layer{opacity:.55}
.grid-bg{background-image:linear-gradient(rgba(15,23,42,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(15,23,42,.05) 1px,transparent 1px)}
.aurora{filter:blur(120px)}
.aurora-1{background:rgba(99,102,241,.16)}
.aurora-2{background:rgba(34,211,238,.12)}
.aurora-3{background:rgba(168,85,247,.14)}
#matrix{opacity:.04}
.mouse-glow{background:radial-gradient(circle,rgba(99,102,241,.09) 0%,rgba(34,211,238,.03) 45%,transparent 70%)}
/* 导航 */
.nav{background:rgba(255,255,255,.85);border-color:var(--line)}
.nav::after{opacity:.3}
.nav-links a{color:var(--dim)}
.nav-links a:hover{color:var(--c1)}
.nav-links a::after{background:var(--c1)}
.lang-btn{color:var(--c1)}
.lang-menu{background:rgba(255,255,255,.97);border-color:var(--line);box-shadow:0 24px 60px rgba(15,23,42,.15)}
.lang-menu a{color:var(--dim)}
.lang-menu a:hover{background:rgba(99,102,241,.08);color:var(--c1)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--txt)}
/* 标题文字改暗 */
.beam-card h3,.list-row h4,.step h4,.ind-card .ind-name,.faq summary,.foot-brand span,.foot-col b,.stat-cell .num,.msg.ai .role{color:#0f172a !important}
.typewriter b,.ind-sub h5,.sec-num,.step .idx{color:var(--c1)}
.faq summary .plus{color:var(--c1);border-color:var(--line)}
.faq .ans b{color:var(--c1)}
.faq{background:#fff}
.ind-sub h5::before{color:var(--c1)}
.ind-sub{background:rgba(255,255,255,.6);border-color:var(--line)}
.ind-sub:hover{border-color:var(--c1);background:rgba(99,102,241,.05)}
.list-row{background:#fff}
.step .idx{background:rgba(99,102,241,.08);border-color:rgba(99,102,241,.25)}
/* 跑马灯 */
.marquee-bar{background:#fff;border-color:var(--line)}
.marquee-bar::before{background:linear-gradient(90deg,var(--bg),transparent)}
.marquee-bar::after{background:linear-gradient(-90deg,var(--bg),transparent)}
/* 卡片内部细节 */
.beam-card .tag-row .chip{background:rgba(99,102,241,.06)}
.cta-zone{background:rgba(255,255,255,.7);border-color:var(--line)}
.cta-zone .aurora-bg{background:radial-gradient(ellipse at 50% 130%,rgba(99,102,241,.14),rgba(34,211,238,.06) 50%,transparent 70%)}
.cta-checks span{color:var(--dim)}
/* 终端保持深色 (作为屏幕), 微调 */
.terminal,.demo-box{box-shadow:0 24px 80px -30px rgba(15,23,42,.3)}
/* footer */
footer{background:rgba(255,255,255,.7);border-color:var(--line)}
.foot-col a:hover{color:var(--c1)}
/* 数字滚动条 */
.scroll-progress{height:3px}
/* ============ v4.1 止血补丁 ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media(max-width:800px){.grid-2{grid-template-columns:1fr}}
.proof-card{position:relative;border-radius:16px;border:1px solid var(--line);background:#fff;padding:24px;box-shadow:0 18px 50px -30px rgba(15,23,42,.25)}
.proof-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;flex-wrap:wrap}
.proof-name{font-size:16px;font-weight:700;color:#0f172a;font-family:"Inter","PingFang SC",sans-serif}
.st{font-family:ui-monospace,Menlo,monospace;font-size:10.5px;letter-spacing:.06em;border-radius:999px;padding:4px 11px;border:1px solid;white-space:nowrap}
.st.ok{color:#059669;border-color:rgba(5,150,105,.35);background:rgba(5,150,105,.08)}
.st.warn{color:#d97706;border-color:rgba(217,119,6,.35);background:rgba(217,119,6,.08)}
.proof-desc{font-size:13px;color:var(--dim);line-height:1.8;margin-bottom:12px}
.proof-card .tag-row{margin-bottom:18px}
.proof-card .tag-row .chip{color:#0284c7;border-color:rgba(2,132,199,.25);background:rgba(56,189,248,.08)}
.proof-cta{display:flex;gap:10px;flex-wrap:wrap}
.proof-card .btn{padding:9px 15px;font-size:12px}
.contact-line{position:relative;z-index:1;margin-top:20px;font-size:13px;color:var(--dim)}
.contact-line a{color:var(--c1);font-weight:600;text-decoration:underline;text-underline-offset:3px}
/* ============ v4.2 案例区 ============ */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
@media(max-width:1000px){.case-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.case-grid{grid-template-columns:1fr}}
.case-card{position:relative;display:flex;flex-direction:column;border-radius:16px;background:#fff;border:1px solid var(--line);overflow:hidden;box-shadow:0 18px 50px -30px rgba(15,23,42,.25);transition:all .3s}
.case-card:hover{transform:translateY(-4px);box-shadow:0 26px 60px -28px rgba(15,23,42,.3)}
.case-top{height:4px;background:linear-gradient(90deg,var(--c1),var(--c2));flex-shrink:0}
.case-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.case-tags{display:flex;gap:6px;flex-wrap:wrap}
.case-tags .chip{font-size:10px;padding:3px 9px;border-radius:5px;background:rgba(37,99,235,.07);border:1px solid rgba(37,99,235,.2);color:#0369a1;font-family:ui-monospace,Menlo,monospace;letter-spacing:.04em}
.case-card h3{font-size:15px;color:#0f172a}
.case-card p{font-size:12.5px;color:var(--dim);line-height:1.75}
.case-stats{margin-top:auto;font-family:ui-monospace,Menlo,monospace;font-size:11px;color:var(--faint);border-top:1px dashed var(--line);padding-top:10px;display:flex;flex-wrap:wrap;gap:4px 14px}
.case-stats b{color:#0369a1;font-weight:600}
.case-cta{display:flex;gap:8px;flex-wrap:wrap;margin-top:4px}
.case-card .btn{padding:8px 13px;font-size:12px}
.foot-grid{grid-template-columns:2fr 1fr 1fr 1fr}
/* ============ v3.0 多页化 ============ */
.nav-tabs{overflow-x:auto;scrollbar-width:none;max-width:100%}
.nav-tabs::-webkit-scrollbar{display:none}
.nav-tab{white-space:nowrap}
.page.always{display:block!important;animation:pageIn .5s cubic-bezier(.22,1,.36,1)}
.sub-link{display:inline-block;margin-top:14px;font-size:13px;color:var(--c1);font-weight:600}
/* ============ v3.1 移动端精修 ============ */
@media(max-width:700px){
  .hud-coord{display:none}
  .nav{padding:0 12px}
  .logo{font-size:15px}
  .nav-tabs{flex:1 1 auto;min-width:0;margin-left:10px;padding:3px}
  .nav-tab{padding:7px 12px;font-size:12px}
  .nav-right{gap:8px}
  .nav-right .btn{padding:7px 12px;font-size:12px}
  .hero{padding:56px 16px 40px}
  .hero-split{padding:34px 16px 12px;gap:28px}
  .section{padding:52px 0}
  .wrap{padding:0 16px}
  .btn{min-height:44px;justify-content:center}
  .proof-card .btn,.case-card .btn{padding:8px 14px;min-height:40px}
  .terminal .term-body{min-height:0;padding:14px 12px;font-size:11.5px;line-height:1.9}
  .term-bar .title{font-size:10px}
  .cta-zone{padding:48px 18px}
  .foot-grid{gap:20px}
  h1{letter-spacing:-.02em}
}
@media(max-width:420px){
  .nav-tab{padding:6px 10px;font-size:11px}
  .case-stats,.proof-card .tag-row{gap:4px 8px}
}
@media(max-width:700px){
  .nav-tab{min-height:38px;display:inline-flex;align-items:center}
  .foot-bottom a{display:inline-flex;align-items:center;min-height:36px;padding:4px 2px}
}