.pcf-page{
  --bg:#09090b; --bg-2:#0f0f12; --bg-3:#16161a; --bg-card:#131316;
  --violet:#7c3aed; --violet-2:#a78bfa; --violet-3:#c4b5fd;
  --glow:rgba(124,58,237,.18);
  --border:#242428; --border-2:#2e2e34;
  --t1:#fafafa; --t2:#a1a1aa; --t3:#71717a; --t4:#52525b;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --mono:"SF Mono","JetBrains Mono",ui-monospace,Menlo,monospace;
}
.pcf-page,.pcf-page *{box-sizing:border-box;margin:0;padding:0}
html.pcf-page-root{scroll-behavior:smooth;scrollbar-width:none;-ms-overflow-style:none}
body.pcf-page-active{font-family:var(--sans);background:var(--bg);color:var(--t2);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden;scrollbar-width:none;-ms-overflow-style:none}
html.pcf-page-root::-webkit-scrollbar,body.pcf-page-active::-webkit-scrollbar{display:none;width:0;height:0}
.pcf-page ::selection{background:var(--violet);color:#fff}

/* reading progress */
.progress{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--violet),var(--violet-2));z-index:100;transition:width .1s linear}

.wrap{max-width:1080px;margin:0 auto;padding:0 32px}

/* HERO */
.hero{position:relative;padding:150px 0 120px;overflow:hidden;border-bottom:1px solid var(--border)}
.hero::before{content:"";position:absolute;top:-30%;left:50%;transform:translateX(-50%);width:900px;height:700px;background:radial-gradient(circle,var(--glow),transparent 60%);pointer-events:none;z-index:0}
.hero .grid-bg{position:absolute;inset:0;background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);background-size:56px 56px;opacity:.25;mask-image:radial-gradient(ellipse 70% 60% at 50% 40%,#000 30%,transparent 75%);pointer-events:none}
.hero-inner{position:relative;z-index:1;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--violet-2);margin-bottom:28px;padding:7px 16px;border:1px solid rgba(124,58,237,.3);border-radius:100px;background:rgba(124,58,237,.08)}
.eyebrow .dot{width:5px;height:5px;border-radius:50%;background:var(--violet);box-shadow:0 0 8px var(--violet)}
h1.hero-title{font-size:clamp(32px,5vw,56px);font-weight:300;letter-spacing:-.03em;line-height:1.15;color:var(--t1);max-width:800px;margin:0 auto}
h1.hero-title b{font-weight:600;background:linear-gradient(120deg,var(--violet-2),var(--violet-3));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{font-size:clamp(17px,2.2vw,21px);color:var(--t2);max-width:660px;margin:28px auto 0;font-weight:300;line-height:1.8}
.hero-sub b{color:var(--t1);font-weight:500}
.hero-chips{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:40px}
.chip{font-size:13px;color:var(--t2);padding:9px 18px;border:1px solid var(--border-2);border-radius:100px;background:var(--bg-2);display:flex;align-items:center;gap:8px}
.chip svg{width:15px;height:15px;color:var(--violet-2)}
.scroll-hint{margin-top:64px;display:inline-flex;flex-direction:column;align-items:center;gap:8px;color:var(--t4);font-size:11px;letter-spacing:.1em;text-transform:uppercase}
.scroll-hint .arrow{width:20px;height:20px;animation:bounce 2s infinite}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

/* OVERVIEW rail */
.overview{padding:80px 0 20px}
.ov-title{text-align:center;margin-bottom:12px}
.ov-title .k{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--violet-2);font-weight:500}
.ov-title h2{font-size:28px;font-weight:300;letter-spacing:-.02em;color:var(--t1);margin-top:10px}
.ov-note{text-align:center;color:var(--t3);font-size:14px;margin-bottom:48px}
.ov-rail{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.ov-stage{border:1px solid var(--border);border-radius:14px;background:var(--bg-2);padding:20px 18px;cursor:pointer;transition:.25s;position:relative;overflow:hidden}
.ov-stage:hover{border-color:var(--border-2);transform:translateY(-3px)}
.ov-stage::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--violet),var(--violet-2));opacity:.5}
.ov-stage .num{font-family:var(--mono);font-size:12px;color:var(--violet-2);font-weight:500}
.ov-stage .nm{font-size:15px;color:var(--t1);font-weight:600;margin:8px 0 6px}
.ov-stage .ct{font-size:12px;color:var(--t3)}
.ov-stage .dots{display:flex;gap:4px;margin-top:14px;flex-wrap:wrap}
.ov-stage .dots i{width:6px;height:6px;border-radius:50%;background:var(--violet);opacity:.35}

/* STAGES */
.stages{padding:40px 0 20px}
.stage{padding:60px 0;border-top:1px solid var(--border);scroll-margin-top:70px}
.stage-head{display:flex;align-items:baseline;gap:20px;margin-bottom:48px;flex-wrap:wrap}
.stage-head .bignum{font-family:var(--mono);font-size:64px;font-weight:200;color:transparent;-webkit-text-stroke:1px var(--border-2);line-height:1;letter-spacing:-.04em}
.stage-head .meta h3{font-size:30px;font-weight:500;color:var(--t1);letter-spacing:-.02em}
.stage-head .meta p{font-size:16px;color:var(--t3);margin-top:8px}

/* node timeline */
.nodes{position:relative;padding-left:44px}
.nodes::before{content:"";position:absolute;left:15px;top:12px;bottom:12px;width:1px;background:linear-gradient(var(--border-2),var(--border) 60%,transparent)}
.node{position:relative;margin-bottom:16px}
.node .bullet{position:absolute;left:-44px;top:18px;width:32px;height:32px;border-radius:50%;background:var(--bg-2);border:1px solid var(--border-2);display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:11px;color:var(--violet-2);font-weight:600;z-index:2;transition:.3s}
.node.open .bullet{background:var(--violet);border-color:var(--violet);color:#fff;box-shadow:0 0 0 4px rgba(124,58,237,.15)}
.node-card{border:1px solid var(--border);border-radius:14px;background:var(--bg-card);overflow:hidden;transition:.25s}
.node.open .node-card{border-color:var(--border-2);background:var(--bg-3)}
.node-card:hover{border-color:var(--border-2)}
.node-head{padding:24px 26px;display:flex;align-items:center;gap:16px}
.node-head .txt{flex:1;min-width:0}
.node-head .tt{font-size:20px;font-weight:600;color:var(--t1);letter-spacing:-.01em}
.node-head .desc{font-size:16px;color:var(--t3);margin-top:6px;line-height:1.65}
.node.open .node-head .desc{color:var(--t2)}
.node-head .caret{display:none}
.node.open .node-head .caret{transform:rotate(180deg);border-color:var(--violet);color:var(--violet-2)}
.node-body{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.4,0,.2,1)}
.node-body-inner{padding:0 24px 24px;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);border-radius:12px;overflow:hidden;margin-top:2px}
.tile{background:var(--bg-2);padding:22px 22px 24px}
.tile .lbl{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;margin-bottom:12px}
.tile.a .lbl{color:var(--violet-2)} .tile.b .lbl{color:#5eb0ef} .tile.c .lbl{color:#6ee7b7}
.tile .lbl svg{width:16px;height:16px}
.tile .val{font-size:15.5px;color:var(--t2);line-height:1.7}
.tile .val b{color:var(--t1);font-weight:600}

/* OPERATIONS */
.ops{padding:84px 0 100px;border-top:1px solid var(--border);position:relative;overflow:hidden}
.ops::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(36,36,40,.38) 1px,transparent 1px),linear-gradient(90deg,rgba(36,36,40,.38) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(transparent,rgba(0,0,0,.55) 18%,rgba(0,0,0,.55) 82%,transparent);pointer-events:none}
.ops-inner{position:relative}
.ops-head{max-width:720px;margin-bottom:38px}
.ops-head .k{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#5eb0ef;font-weight:600}
.ops-head h2{font-size:clamp(28px,4vw,40px);font-weight:400;color:var(--t1);line-height:1.25;margin-top:12px;letter-spacing:0}
.ops-head p{font-size:16px;color:var(--t2);line-height:1.85;margin-top:16px}
.ops-console{border:1px solid var(--border-2);border-radius:14px;background:rgba(15,15,18,.94);overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.3)}
.ops-toolbar{min-height:54px;padding:0 20px;display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--border);background:#111114}
.ops-toolbar .live{width:8px;height:8px;border-radius:50%;background:#34d399;box-shadow:0 0 0 5px rgba(52,211,153,.1),0 0 14px rgba(52,211,153,.55);animation:livePulse 2.2s ease-in-out infinite}
.ops-toolbar strong{font-size:14px;color:var(--t1);font-weight:600;white-space:nowrap}
.ops-toolbar .support{margin-left:auto;font-family:var(--mono);font-size:11px;color:#6ee7b7;padding:5px 9px;border:1px solid rgba(52,211,153,.22);border-radius:5px;background:rgba(52,211,153,.07);white-space:nowrap}
@keyframes livePulse{50%{opacity:.55;transform:scale(.86)}}
.ops-grid{display:grid;grid-template-columns:1.05fr .95fr}
.ops-panel{padding:28px}
.ops-panel+.ops-panel{border-left:1px solid var(--border)}
.ops-label{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--t3);text-transform:uppercase;margin-bottom:20px}
.signal-list{display:grid;gap:10px}
.signal{min-height:52px;display:grid;grid-template-columns:30px 110px 1fr auto;align-items:center;gap:12px;border-bottom:1px solid var(--border);padding:6px 0 12px}
.signal:last-child{border-bottom:0}
.signal .sic{width:28px;height:28px;border-radius:6px;display:grid;place-items:center;color:#5eb0ef;background:rgba(94,176,239,.1)}
.signal .sic svg{width:15px;height:15px}
.signal .sn{font-size:13px;color:var(--t1);font-weight:500}
.signal .bar{height:4px;border-radius:4px;background:#232329;overflow:hidden}
.signal .bar i{display:block;height:100%;width:var(--v);border-radius:inherit;background:linear-gradient(90deg,#2563eb,#60a5fa);transform-origin:left;animation:barScan 3s ease-in-out infinite alternate}
.signal .state{font-family:var(--mono);font-size:10px;color:#6ee7b7}
@keyframes barScan{from{transform:scaleX(.76);opacity:.65}to{transform:scaleX(1);opacity:1}}
.wecom{margin-top:22px;padding:16px 18px;border:1px solid rgba(94,176,239,.2);border-radius:8px;background:rgba(94,176,239,.06);display:flex;gap:13px;align-items:flex-start}
.wecom .wic{width:34px;height:34px;flex:none;border-radius:7px;background:#1683df;color:#fff;display:grid;place-items:center}
.wecom .wic svg{width:18px;height:18px}
.wecom b{display:block;font-size:13px;color:var(--t1);font-weight:600;margin-bottom:3px}
.wecom p{font-size:12px;color:var(--t3);line-height:1.6}
.levels{display:grid;gap:8px}
.level{display:grid;grid-template-columns:58px 1fr auto;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--border)}
.level:last-child{border-bottom:0}
.level .tag{font-size:12px;font-weight:600;text-align:center;padding:5px 7px;border-radius:5px}
.level .ld{font-size:12px;color:var(--t3);line-height:1.55}
.level .time{font-family:var(--mono);font-size:12px;color:var(--t1);white-space:nowrap}
.level.urgent .tag{color:#fca5a5;background:rgba(239,68,68,.12)}
.level.major .tag{color:#fdba74;background:rgba(249,115,22,.12)}
.level.normal .tag{color:#fcd34d;background:rgba(245,158,11,.12)}
.level.minor .tag{color:#93c5fd;background:rgba(59,130,246,.12)}
.response-note{font-size:11px;color:var(--t4);line-height:1.65;margin-top:14px}
.delivery{border-top:1px solid var(--border);padding:28px;background:#0d0d10}
.delivery-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.delivery-head h3{font-size:17px;color:var(--t1);font-weight:600}
.delivery-head p{font-size:12px;color:var(--t3);margin-top:4px}
.delivery-head .rollback{font-family:var(--mono);font-size:11px;color:#c4b5fd;white-space:nowrap}
.pipeline{display:grid;grid-template-columns:repeat(6,1fr);position:relative;gap:18px}
.pipeline::before{content:"";position:absolute;left:7%;right:7%;top:18px;height:1px;background:linear-gradient(90deg,#5eb0ef,var(--violet-2),#6ee7b7)}
.pipeline::after{content:"";position:absolute;top:15px;left:7%;width:7px;height:7px;border-radius:50%;background:#fff;box-shadow:0 0 12px #a78bfa;animation:deployRun 5s linear infinite}
@keyframes deployRun{from{left:7%}to{left:92%}}
.pipe-step{position:relative;text-align:center;z-index:1}
.pipe-step .pic{width:36px;height:36px;border-radius:50%;margin:0 auto 10px;background:var(--bg-3);border:1px solid var(--border-2);display:grid;place-items:center;color:var(--violet-2)}
.pipe-step .pic svg{width:16px;height:16px}
.pipe-step b{display:block;font-size:12px;color:var(--t1);font-weight:600}
.pipe-step span{display:block;font-size:10px;color:var(--t4);margin-top:3px}
.ops-outcome{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--border)}
.outcome{padding:18px 22px;display:flex;align-items:center;gap:10px;font-size:12px;color:var(--t2)}
.outcome+.outcome{border-left:1px solid var(--border)}
.outcome i{width:6px;height:6px;border-radius:50%;background:#6ee7b7;box-shadow:0 0 9px rgba(110,231,183,.5);flex:none}

/* PROMISE */
.promise{padding:100px 0;border-top:1px solid var(--border);position:relative;overflow:hidden}
.promise::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:600px;height:400px;background:radial-gradient(circle,var(--glow),transparent 65%);pointer-events:none}
.promise-inner{position:relative}
.promise .ov-title{margin-bottom:48px}
.pg{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.pcard{border:1px solid var(--border);border-radius:16px;background:var(--bg-2);padding:28px;display:flex;gap:18px;transition:.25s}
.pcard:hover{border-color:var(--border-2);transform:translateY(-3px)}
.pcard .ic{flex:none;width:44px;height:44px;border-radius:12px;background:rgba(124,58,237,.12);border:1px solid rgba(124,58,237,.25);display:flex;align-items:center;justify-content:center;color:var(--violet-2)}
.pcard .ic svg{width:22px;height:22px}
.pcard h4{font-size:18px;color:var(--t1);font-weight:600;margin-bottom:7px}
.pcard p{font-size:15px;color:var(--t3);line-height:1.65}

/* CTA */
.pcf-page .cta{padding:110px 0;text-align:center;border-top:1px solid var(--border);position:relative;overflow:hidden}
.pcf-page .cta .grid-bg{position:absolute;inset:0;background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);background-size:56px 56px;opacity:.2;mask-image:radial-gradient(ellipse 60% 70% at 50% 50%,#000,transparent 70%)}
.pcf-page .cta-inner{position:relative;z-index:1}
.pcf-page .cta h2{font-size:clamp(28px,4vw,42px);font-weight:300;letter-spacing:-.03em;color:var(--t1);line-height:1.2}
.pcf-page .cta h2 b{font-weight:600;color:var(--violet-2)}
.pcf-page .cta p{font-size:16px;color:var(--t2);margin-top:18px;font-weight:300}
.pcf-page .cta-btns{display:flex;justify-content:center;gap:14px;margin-top:40px;flex-wrap:wrap}
.btn{padding:14px 30px;border-radius:100px;font-size:14.5px;font-weight:600;cursor:pointer;transition:.25s;border:1px solid transparent;text-decoration:none;display:inline-flex;align-items:center;gap:9px}
.btn.primary{background:var(--violet);color:#fff;box-shadow:0 4px 20px rgba(124,58,237,.35)}
.btn.primary:hover{background:#8b4ef0;transform:translateY(-2px);box-shadow:0 6px 28px rgba(124,58,237,.5)}
.btn.ghost{background:var(--bg-2);color:var(--t1);border-color:var(--border-2)}
.btn.ghost:hover{border-color:var(--violet);color:var(--violet-2)}

/* FOOTER */
.pcf-page footer{border-top:1px solid var(--border);padding:40px 0;text-align:center}
.pcf-page footer .fbrand{font-size:14px;font-weight:600;color:var(--t1);letter-spacing:.02em;display:inline-flex;align-items:center;gap:8px}
.pcf-page footer .fbrand .dot{width:6px;height:6px;border-radius:50%;background:var(--violet)}
.pcf-page footer .fmeta{font-size:12px;color:var(--t4);margin-top:12px;line-height:1.8}

/* reveal anim */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ===== 趣味交互 ===== */
/* 时间轴填充线：随滚动点亮 */
.nodes .track{position:absolute;left:15px;top:12px;width:2px;margin-left:-.5px;background:linear-gradient(var(--violet),var(--violet-2));height:0;z-index:1;box-shadow:0 0 10px rgba(124,58,237,.75);transition:height .15s linear;border-radius:2px}
/* 节点圆点：进入视口脉冲 */
@keyframes bulletPulse{0%{box-shadow:0 0 0 0 rgba(124,58,237,.55)}70%{box-shadow:0 0 0 15px rgba(124,58,237,0)}100%{box-shadow:0 0 0 4px rgba(124,58,237,.15)}}
.node.seen .bullet{animation:bulletPulse 1.1s ease-out forwards}
/* 三件事：错位淡入淡出（可见态由 .reveal/.in 统一控制，此处仅设错位延迟） */
.node .tile.b.reveal{transition-delay:.1s}
.node .tile.c.reveal{transition-delay:.2s}
/* 关键时效词高亮 + 进入闪光 */
.kw{color:var(--violet-2);font-weight:600;white-space:nowrap;padding:1px 5px;border-radius:5px;background:rgba(124,58,237,.12)}
.node.seen .kw{animation:kwFlash 1.5s ease .35s}
@keyframes kwFlash{0%,100%{background:rgba(124,58,237,.12);text-shadow:none}42%{background:rgba(124,58,237,.32);text-shadow:0 0 14px rgba(167,139,250,.85)}}
/* 承诺卡图标 hover 弹跳 */
.pcard .ic{transition:transform .4s cubic-bezier(.34,1.56,.64,1),background .3s}
.pcard:hover .ic{transform:rotate(-9deg) scale(1.14);background:rgba(124,58,237,.24)}
/* 概览卡 hover：小圆点依次点亮 */
.ov-stage:hover .dots i{animation:dotBounce .7s ease}
.ov-stage:hover .dots i:nth-child(2){animation-delay:.06s}
.ov-stage:hover .dots i:nth-child(3){animation-delay:.12s}
.ov-stage:hover .dots i:nth-child(4){animation-delay:.18s}
.ov-stage:hover .dots i:nth-child(5){animation-delay:.24s}
.ov-stage:hover .dots i:nth-child(6){animation-delay:.3s}
@keyframes dotBounce{40%{transform:scale(1.7) translateY(-3px);opacity:1;background:var(--violet-2);box-shadow:0 0 8px var(--violet)}}
/* hero 数字 */
.chip b{font-variant-numeric:tabular-nums;color:var(--violet-2);font-weight:700;margin-right:1px}
/* hero 光晕跟随鼠标 */
.hero::before{left:var(--mx,50%);top:var(--my,22%);transform:translate(-50%,-50%);transition:left .6s cubic-bezier(.22,1,.36,1),top .6s cubic-bezier(.22,1,.36,1)}
/* 回到顶部 */
.totop{position:fixed;right:28px;bottom:28px;width:50px;height:50px;border-radius:50%;background:var(--violet);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transform:translateY(22px) scale(.85);transition:.35s cubic-bezier(.34,1.56,.64,1);z-index:85;box-shadow:0 6px 26px rgba(124,58,237,.55);border:none}
.totop.show{opacity:1;transform:none}
.totop:hover{background:#8b4ef0;transform:translateY(-5px)}
.totop svg{width:22px;height:22px}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition-duration:.01ms!important}.reveal{opacity:1!important;transform:none!important}}

@media(max-width:860px){
  .ov-rail{grid-template-columns:repeat(2,1fr)}
  .pg{grid-template-columns:1fr}
  .node-body-inner{grid-template-columns:1fr}
  .wrap{padding:0 20px}
  .hero{padding:120px 0 90px}
  .stage-head .bignum{font-size:48px}
  .ops-grid{grid-template-columns:1fr}
  .ops-panel+.ops-panel{border-left:0;border-top:1px solid var(--border)}
  .pipeline{grid-template-columns:1fr;gap:12px;padding-left:12px}
  .pipeline::before{left:29px;right:auto;top:18px;bottom:18px;width:1px;height:auto;background:linear-gradient(#5eb0ef,var(--violet-2),#6ee7b7)}
  .pipeline::after{display:none}
  .pipe-step{text-align:left;display:grid;grid-template-columns:36px 1fr;column-gap:12px;align-items:center}
  .pipe-step .pic{margin:0;grid-row:1/3}
  .pipe-step span{margin:0}
  .ops-outcome{grid-template-columns:1fr}
  .outcome+.outcome{border-left:0;border-top:1px solid var(--border)}
  .delivery-head{align-items:flex-start;flex-direction:column}
}
@media(max-width:560px){
  .ops{padding:68px 0 80px}
  .ops-panel,.delivery{padding:22px 18px}
  .ops-toolbar{padding:0 16px}
  .ops-toolbar strong{flex:1;min-width:0;white-space:normal;line-height:1.35}
  .ops-toolbar .support{font-size:9px;padding:5px 7px}
  .signal{grid-template-columns:28px 1fr auto}
  .signal .bar{display:none}
  .level{grid-template-columns:52px 1fr}
  .level .time{grid-column:2}
}