:root{
  --bg:#FAFAF8;
  --ink:#15161A;
  --muted:#9A9AA2;
  --line:#ECEAE3;
  --accent:#FF4A1C;
  --sun:#FFB020;
  --star:#E3E0D6;
  --mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,Consolas,monospace;
  --disp:'Space Grotesk','Avenir Next','Helvetica Neue',Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  position:relative;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--disp);
  min-height:100vh;
  overflow-x:hidden;
}
/* twinkling day-stars */
.star{position:fixed;width:3px;height:3px;border-radius:50%;background:var(--star);z-index:0;animation:twinkle 3s ease-in-out infinite}
.star.s2{width:2px;height:2px}
@keyframes twinkle{0%,100%{opacity:.25}50%{opacity:1}}
.wrap{position:relative;z-index:1;max-width:1000px;margin:0 auto;padding:0 24px 80px}
.top{display:flex;justify-content:space-between;align-items:center;padding:22px 0;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:12.5px;color:var(--muted);letter-spacing:.4px}
.top .l span{color:var(--accent)}
.top .r{display:flex;align-items:center;gap:6px}
.live{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:pulse 1.6s infinite}
@keyframes pulse{50%{opacity:.35}}
/* hero */
.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:20px;align-items:center;padding:58px 0 48px}
.h-l .tag{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.5px;margin-bottom:16px}
.h-l .tag b{color:var(--accent)}
.brand{font-size:clamp(58px,11vw,118px);font-weight:700;letter-spacing:-3px;line-height:.95}
.brand span{color:var(--accent)}
.sub{margin-top:14px;font-size:clamp(15px,2.3vw,19px);min-height:1.4em}
.sub .en{color:var(--muted);display:block;margin-top:4px;font-size:clamp(13px,1.9vw,16px)}
.coord{font-family:var(--mono);font-size:12px;color:var(--muted);margin-top:24px;letter-spacing:.3px}
.coord b{color:var(--accent);font-weight:400}
.rx{font-family:var(--mono);font-size:12px;color:var(--muted);margin-top:10px;letter-spacing:.3px;display:none}
.rx b{color:var(--accent);font-weight:400}
.rx.show{display:block;animation:rxin .8s ease-out}
@keyframes rxin{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
/* radar */
.radar{position:relative;width:min(330px,80vw);aspect-ratio:1;margin:0 auto}
.rings{position:absolute;inset:0}
.rings i{position:absolute;border:1px solid var(--line);border-radius:50%}
.rings i:nth-child(1){inset:6%}
.rings i:nth-child(2){inset:24%}
.rings i:nth-child(3){inset:42%}
.sweep{position:absolute;inset:0;border-radius:50%;
  background:conic-gradient(from 0deg, rgba(255,74,28,.30), rgba(255,74,28,0) 70deg, transparent 70deg);
  animation:spin 3.4s linear infinite;
  -webkit-mask:radial-gradient(circle, transparent 0, #000 62%);
          mask:radial-gradient(circle, transparent 0, #000 62%);
}
@keyframes spin{to{transform:rotate(360deg)}}
.beacon{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;cursor:pointer;border-radius:50%}
.beacon b{font-size:26px;font-weight:700;letter-spacing:1px}
.beacon b i{font-style:normal;color:var(--accent)}
.beacon:active{transform:scale(.98)}
.sig{position:absolute;cursor:pointer}
.sig .d{position:absolute;width:11px;height:11px;border-radius:50%;background:var(--accent);transition:transform .2s}
.sig .d::after{content:"";position:absolute;inset:-6px;border:1px solid var(--accent);border-radius:50%;animation:ripple 1.8s ease-out infinite}
@keyframes ripple{0%{transform:scale(.5);opacity:.9}100%{transform:scale(2);opacity:0}}
.sig em{position:absolute;top:50%;transform:translateY(-50%);font-style:normal;white-space:nowrap;font-family:var(--mono);font-size:12px;letter-spacing:.3px;color:var(--ink)}
.s1{top:22%;left:56%}
.s1 .d{right:-14px}
.s1 em{right:-10px}
.s2{bottom:24%;left:54%}
.s2 .d{right:-14px}
.s2 em{right:-10px}
.s3{top:20%;left:14%}
.s3 .d{right:-14px}
.s3 em{right:-10px}
.s4{bottom:20%;left:18%}
.s4 .d{right:-14px}
.s4 em{right:-10px}
.sig:hover .d{transform:scale(1.5)}
.sig.hot .d{animation:dotpulse .5s ease-out}
@keyframes dotpulse{0%{transform:scale(1)}35%{transform:scale(1.7)}100%{transform:scale(1)}}
/* section label */
.lab{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.6px;margin-bottom:18px}
.lab b{color:var(--accent)}
/* daily signal */
.dsec{border-top:1px solid var(--line);padding:36px 0}
.daily{display:flex;flex-direction:column;align-items:center;text-align:center;gap:18px;min-height:120px;justify-content:center}
.dline{font-size:clamp(18px,3.2vw,26px);font-weight:500;line-height:1.6;max-width:660px;min-height:3.2em;transition:opacity .4s,transform .4s}
.dline .en{display:block;color:var(--muted);font-size:clamp(13px,2vw,16px);margin-top:6px;font-weight:400}
.dline.fade{opacity:0;transform:translateY(6px)}
.dsub{display:flex;align-items:center;gap:14px;font-family:var(--mono);font-size:12px;color:var(--muted)}
.dnext{border:1px solid var(--line);background:#fff;color:var(--ink);font-family:var(--mono);font-size:11.5px;padding:7px 14px;border-radius:999px;cursor:pointer;transition:.2s}
.dnext:hover{border-color:var(--accent);color:var(--accent)}
.dnum{letter-spacing:.4px}
/* transmissions · horizontal tags */
.ptags{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pcard{display:flex;gap:14px;align-items:flex-start;padding:20px 22px;border:1px dashed var(--line);border-radius:16px;background:#fff;cursor:pointer;text-decoration:none;color:var(--ink);transition:.25s;position:relative}
.pcard:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 14px 30px rgba(21,22,26,.07)}
.pcard .dot{flex:none;width:13px;height:13px;border-radius:50%;margin-top:5px;position:relative}
.pcard .dot::after{content:"";position:absolute;inset:-7px;border:1px solid currentColor;border-radius:50%;opacity:.45;animation:ripple 2s ease-out infinite}
.pcard.a .dot{background:var(--accent);color:var(--accent)}
.pcard.b .dot{background:var(--sun);color:var(--sun)}
.pcard .bd{flex:1;min-width:0}
.pcard .nm{font-size:19px;font-weight:700;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.pcard .tagn{font-family:var(--mono);font-size:10.5px;color:var(--muted);letter-spacing:.4px}
.pcard .ds{color:#55565C;margin-top:6px;font-size:13.5px;line-height:1.5}
.pcard .ar{flex:none;font-size:18px;color:var(--accent);margin-top:2px;transition:transform .2s}
.pcard:hover .ar{transform:translateX(5px)}
.pcard.hot{border-color:var(--accent);background:#FFF6F1}
@keyframes cardhot{0%{box-shadow:0 0 0 0 rgba(255,74,28,.5)}100%{box-shadow:0 0 0 26px rgba(255,74,28,0)}}
/* manifesto */
.transmit{display:flex;flex-direction:column;align-items:center;text-align:center;padding:36px 0}
.tline{max-width:520px}
.tline .zh{font-size:clamp(18px,3vw,26px);font-weight:500;line-height:1.5}
.tline .en{color:var(--muted);margin-top:6px;font-size:14px}
/* footer */
.foot{padding:34px 0 0;border-top:1px solid var(--line)}
.mail{display:inline-block;font-size:clamp(26px,5vw,44px);font-weight:700;color:var(--accent);text-decoration:none;word-break:break-all;margin-top:14px}
.mail:hover{text-decoration:underline}
.foot .note{font-family:var(--mono);font-size:12px;color:var(--muted);margin-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
/* cursor follow */
.cursor-fx{position:fixed;top:0;left:0;width:10px;height:10px;border-radius:50%;background:var(--accent);opacity:0;z-index:200;pointer-events:none;transform:translate(-50%,-50%);transition:opacity .25s,width .25s,height .25s}
.cursor-fx::after{content:"";position:absolute;inset:-12px;border:1px solid rgba(255,74,28,.32);border-radius:50%;animation:curring 1.8s ease-out infinite}
.cursor-fx.on-link{width:28px;height:28px;background:rgba(255,74,28,.10);border:1px solid var(--accent)}
.cursor-fx.on-link::after{animation:none;opacity:0}
@keyframes curring{0%{transform:scale(.55);opacity:.75}100%{transform:scale(1.4);opacity:0}}
/* toast */
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(90px);background:var(--ink);color:#fff;font-family:var(--mono);font-size:13px;padding:11px 18px;border-radius:10px;opacity:0;transition:.35s;z-index:99;pointer-events:none;max-width:88vw;text-align:center;white-space:nowrap}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
@media(max-width:760px){
  .hero{grid-template-columns:1fr;padding:42px 0 28px}
  .radar{margin:26px auto 0;width:min(290px,76vw)}
  .transmit{padding:28px 0}
  .ptags{grid-template-columns:1fr}
}
/* ——— added sections: about / work / principles ——— */
.brand-inline{font-weight:700;color:var(--ink);letter-spacing:-.3px;white-space:nowrap}
.brand-inline span{color:var(--accent)}
.about-lead{font-size:clamp(17px,2.6vw,22px);font-weight:500;line-height:1.65;max-width:760px}
.about-en{color:var(--muted);margin-top:12px;font-size:14px;line-height:1.7;max-width:760px}
.about-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:34px}
.afact{border-top:1px solid var(--line);padding-top:12px}
.afact-k{font-family:var(--mono);font-size:11px;letter-spacing:.5px;color:var(--muted);text-transform:uppercase}
.afact-v{margin-top:6px;font-size:14.5px;font-weight:500}
.svc-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.svc{padding:22px;border:1px solid var(--line);border-radius:16px;background:#fff;transition:.25s}
.svc:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 14px 30px rgba(21,22,26,.07)}
.svc-ic{font-size:16px;color:var(--accent)}
.svc-nm{margin-top:12px;font-size:17px;font-weight:700}
.svc-ds{margin-top:6px;color:#55565C;font-size:13.5px;line-height:1.6}
/* bilingual en lines */
.pcard .ds-en{display:block;color:var(--muted);font-size:12px;margin-top:3px;font-family:var(--mono)}
.svc-nm .en{display:block;font-size:12px;font-weight:400;color:var(--muted);margin-top:3px;font-family:var(--mono);letter-spacing:.2px}
.svc-ds .en{display:block;color:var(--muted);font-size:12px;margin-top:3px;font-family:var(--mono)}
.prin{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.prin-card{position:relative;display:flex;flex-direction:column;min-height:215px;padding:26px 24px 22px;border:1px solid var(--line);border-radius:16px;background:#fff;transition:border-color .25s,transform .25s,box-shadow .25s}
.prin-card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 14px 30px rgba(21,22,26,.07)}
.prin-no{position:absolute;top:20px;right:22px;font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.4px;transition:color .25s}
.prin-card:hover .prin-no{color:var(--accent)}
.prin-zh{font-size:clamp(17px,2.3vw,21px);font-weight:700;line-height:1.6;margin-top:36px;letter-spacing:-.2px}
.prin-en{margin-top:auto;padding-top:24px;color:var(--muted);font-family:var(--mono);font-size:12.5px;line-height:1.7}
/* reveal on scroll */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media(max-width:760px){
  .about-grid{grid-template-columns:1fr;gap:18px}
  .svc-grid{grid-template-columns:1fr}
  .prin{grid-template-columns:1fr}
}