:root{
      --bg:#07111f;--bg2:#0b1728;--text:#f5f7fb;--muted:#aeb9c9;
      --gold:#d7aa54;--gold2:#f3d08a;--green:#8de5c7;
      --line:rgba(255,255,255,.14);--shadow:0 22px 72px rgba(0,0,0,.32);
      --max:1180px;--card-pad:26px;--card-radius:24px;--reading:760px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;background:#030914}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
      color:var(--text);
      background:#030914;
      overflow-x:hidden;
      min-height:100vh;
      position:relative;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      z-index:0;
      pointer-events:none;
      background:
        radial-gradient(ellipse 72rem 48rem at -6% 18%, rgba(215,170,84,.23), transparent 64%),
        radial-gradient(ellipse 58rem 42rem at 18% 68%, rgba(215,170,84,.10), transparent 68%),
        radial-gradient(ellipse 50rem 38rem at 96% 6%, rgba(117,168,255,.14), transparent 66%),
        radial-gradient(ellipse 48rem 34rem at 82% 92%, rgba(117,168,255,.08), transparent 70%),
        linear-gradient(180deg,#030914 0%,#07111f 32%,#081322 64%,#040a13 100%);
    }
    .nav,main,footer{position:relative}
    main,footer{z-index:1}
    body.lang-en .zh{display:none!important}
    body.lang-zh .en{display:none!important}
    body.is-lang-switching section,body.is-lang-switching .nav,body.is-lang-switching footer{opacity:.84;transform:translateY(2px);transition:opacity .22s ease,transform .22s ease}
    a{color:inherit;text-decoration:none}
    .container{max-width:var(--max);margin:0 auto;padding:0 22px}
    .nav{position:fixed;top:0;left:0;right:0;z-index:60;backdrop-filter:blur(18px);background:rgba(5,12,22,.72);border-bottom:1px solid rgba(255,255,255,.10)}
    .nav-inner{height:74px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .brand{position:relative;display:flex;align-items:center;gap:14px;min-width:230px;padding:8px 14px;border-radius:12px;background:linear-gradient(180deg,rgba(54,58,55,.96),rgba(42,47,48,.94));border:1px solid rgba(205,166,86,.52);box-shadow:0 12px 26px rgba(0,0,0,.22),inset 0 1px 0 rgba(255,255,255,.10),inset 0 -1px 0 rgba(0,0,0,.20);overflow:hidden}
    .brand:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(246,205,118,.12),transparent 38%);pointer-events:none}
    .brand-logo{position:relative;width:178px;height:auto;display:block;filter:drop-shadow(0 5px 12px rgba(0,0,0,.28))}
    .nav-links{display:flex;align-items:center;gap:22px;color:#d9e0eb;font-size:14px;white-space:nowrap}
    .nav-links a{opacity:.86;transition:.2s}.nav-links a:hover,.nav-links a.is-active{opacity:1;color:var(--gold2)}
    .actions{display:flex;align-items:center;gap:10px}
    .lang-toggle{display:flex;align-items:center;gap:4px;border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:4px;background:rgba(255,255,255,.06)}
    .lang-toggle button{cursor:pointer;border:0;border-radius:999px;padding:8px 11px;min-width:46px;background:transparent;color:#c9d3e4;font-weight:650;letter-spacing:.02em}
    body.lang-zh button[data-set-lang="zh"],body.lang-en button[data-set-lang="en"]{background:linear-gradient(135deg,var(--gold),var(--gold2));color:#08111e}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:999px;padding:12px 18px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);color:#fff;font-weight:700;box-shadow:0 12px 30px rgba(0,0,0,.16);transition:.25s}
    .btn:hover{transform:translateY(-2px);background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.34)}
    .btn-primary{background:linear-gradient(135deg,var(--gold),var(--gold2));color:#091323;border-color:transparent}
    .hero{position:relative;min-height:94vh;display:flex;align-items:center;padding:134px 0 74px;overflow:hidden;isolation:isolate}
    .hero:before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;background:radial-gradient(ellipse 74rem 46rem at 0% 20%,rgba(215,170,84,.22),transparent 68%),radial-gradient(ellipse 58rem 42rem at 86% 6%,rgba(117,168,255,.14),transparent 70%),linear-gradient(180deg,rgba(4,10,18,.08) 0%,rgba(4,10,18,.16) 54%,rgba(4,10,18,0) 100%);-webkit-mask-image:linear-gradient(180deg,#000 0%,#000 76%,transparent 100%);mask-image:linear-gradient(180deg,#000 0%,#000 76%,transparent 100%)}
    .hero:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:64px 64px;mask-image:linear-gradient(180deg,rgba(0,0,0,.78),transparent 86%)}
    .hero .container{position:relative;z-index:1}
    .eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--gold2);font-weight:760;letter-spacing:.14em;text-transform:uppercase;font-size:11px;margin-bottom:20px}
    .eyebrow:before{content:"";width:38px;height:1px;background:linear-gradient(90deg,var(--gold),transparent)}
    h1{font-size:clamp(38px,5.6vw,72px);line-height:1.08;margin:0 0 18px;letter-spacing:0;max-width:1040px;font-weight:760;text-wrap:balance}
    .hero h1,.hero-sub{text-shadow:0 12px 34px rgba(0,0,0,.34)}
    .hero-sub{font-size:clamp(18px,1.55vw,21px);line-height:1.82;color:#d9e1ed;max-width:min(100%,1040px);margin:0 0 30px;text-wrap:pretty}
    .keep{white-space:nowrap}
    .hero-panel{display:block;margin-top:56px}
    .glass{background:linear-gradient(180deg,rgba(255,255,255,.11),rgba(255,255,255,.055));border:1px solid rgba(255,255,255,.16);box-shadow:var(--shadow);border-radius:var(--card-radius);backdrop-filter:blur(16px)}
    .strategy-card,.metric-card,.approach-card,.feature,.stage,.project,.eco,.list-card{padding:var(--card-pad);border-radius:var(--card-radius)}
    .strategy-card h3,.metric-card h3,.approach-card h3,.feature h3,.list-card h3,.eco h3,.project h3{margin:0 0 12px;font-size:20px;font-weight:740}
    .approach-card{padding:28px;overflow:hidden}
    .approach-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center}
    .approach-head h3{font-size:24px;margin-bottom:8px}
    .approach-head p{margin:0;color:#c7d1df;line-height:1.72;font-size:15px;text-wrap:pretty}
    .approach-metric{font-size:44px;font-weight:820;letter-spacing:0;color:#fff;white-space:nowrap}
    .approach-metric span{color:#d8e0ec;margin:0 8px}
    .approach-card .metric-line{margin:22px 0 18px}
    .strategy-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .chip{border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:16px;background:rgba(4,12,23,.42)}
    .chip b{display:block;color:var(--gold2);font-size:16px;margin-bottom:7px}.chip span{color:#c3cede;font-size:13px;line-height:1.55;text-wrap:pretty}
    .metric-card{display:flex;flex-direction:column;justify-content:space-between;gap:20px;min-height:226px}
    .metric-card .num{font-size:42px;font-weight:820;letter-spacing:0;color:#fff}.metric-card p{margin:0;color:#c7d1df;line-height:1.72;font-size:15px}
    .metric-line{height:1px;background:linear-gradient(90deg,var(--gold),rgba(255,255,255,.12),transparent)}
    section{padding:90px 0;position:relative}
    .section-head{display:grid;grid-template-columns:minmax(0,1fr) calc((100% - 22px)/2);align-items:end;gap:22px;margin-bottom:28px}
    .section-head-solo{display:block}
    #stages .section-head{grid-template-columns:minmax(0,1fr) calc(50% - 7px)}
    #portfolio .section-head{grid-template-columns:minmax(0,1fr) calc(33.333333% + 101.333px)}
    #capabilities .section-head{grid-template-columns:minmax(0,1fr) calc(50% - 8px)}
    .section-kicker{color:var(--gold2);font-size:11px;font-weight:780;letter-spacing:.16em;text-transform:uppercase;margin-bottom:10px}
    h2{font-size:clamp(28px,3.7vw,42px);line-height:1.16;margin:0;letter-spacing:0;font-weight:760;text-wrap:balance}
    .section-desc{width:100%;max-width:none;margin:0;color:var(--muted);line-height:1.7;font-size:12.5px;text-wrap:pretty;white-space:nowrap}
    .section-desc .zh,.section-desc .en{display:inline}
    body.lang-zh #about .section-desc{font-size:15px;line-height:1.72;font-weight:650;color:#d7e0ec;white-space:normal;text-wrap:auto}
    body.lang-zh #about .section-desc .zh{display:block}
    #portfolio .section-desc{white-space:normal}
    #portfolio .portfolio-desc-split{display:grid;gap:6px;text-align:left}
    .portfolio-desc-main{display:block;color:#edf3fb;font-size:18px;font-weight:760;line-height:1.4;white-space:nowrap}
    .portfolio-desc-sub{display:block;color:#aeb9c9;font-size:13px;line-height:1.55}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .feature{position:relative;overflow:hidden}.feature:before{content:"";position:absolute;top:-90px;right:-90px;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,rgba(215,170,84,.18),transparent 70%)}
    .feature .index{width:40px;height:40px;border-radius:14px;background:rgba(215,170,84,.15);border:1px solid rgba(215,170,84,.34);display:flex;align-items:center;justify-content:center;color:var(--gold2);font-weight:820;margin-bottom:16px}
    .feature p,.eco p,.project p,.list-card p{margin:0;color:#c6d0df;line-height:1.74;font-size:15px;text-wrap:pretty}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .stage{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.13);min-height:214px;position:relative;overflow:hidden}
    .stage:before{content:"";position:absolute;left:26px;right:26px;top:60px;height:2px;background:linear-gradient(90deg,var(--gold),rgba(255,255,255,.12))}
    .stage .range{font-size:26px;font-weight:860;color:#fff;margin-bottom:28px;letter-spacing:0}
    .stage h3{margin:0 0 10px;color:var(--gold2);font-size:16px;font-weight:740}.stage p{margin:0;color:#c4cede;line-height:1.74;font-size:14px;text-wrap:pretty}
    .legal-note{position:relative;width:100%;max-width:none;padding:17px 18px 20px;border-radius:18px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);color:#b9c5d6;font-size:14px;line-height:1.65;margin-top:18px;text-wrap:pretty;overflow:hidden}
    .legal-note:after{content:"";position:absolute;left:18px;right:18px;bottom:12px;height:1px;background:linear-gradient(90deg,var(--gold),rgba(255,255,255,.14),transparent)}
    .portfolio-layout{display:grid;grid-template-columns:minmax(0,1fr) 142px;grid-template-areas:"content nav";gap:26px;align-items:start;margin-top:28px}
    .portfolio-content{grid-area:content;min-width:0}
    .portfolio-nav{grid-area:nav;position:sticky;top:104px;z-index:8;display:grid;gap:4px;align-self:start;margin:2px 0 0;padding:12px 0 12px 18px;background:transparent;border-left:1px solid rgba(255,255,255,.13)}
    .portfolio-nav:before{content:"";position:absolute;left:-1px;top:14px;bottom:14px;width:1px;background:rgba(255,255,255,.16);pointer-events:none}
    .pill{position:relative;display:flex;align-items:center;justify-content:flex-start;min-height:36px;padding:7px 8px 7px 14px;border:0;border-radius:10px;background:transparent;color:#aeb9c9;font-size:14px;font-weight:700;transition:.22s;box-shadow:none}
    .pill:before{content:"";position:absolute;left:-22px;top:50%;width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.22);transform:translateY(-50%);transition:.22s}
    .pill:hover,.pill:focus-visible{transform:translateX(2px);background:rgba(215,170,84,.075);color:var(--gold2);outline:none}
    .pill.is-active{background:rgba(215,170,84,.11);color:var(--gold2);box-shadow:none}
    .pill.is-active:before{background:var(--gold2);box-shadow:0 0 0 4px rgba(215,170,84,.12)}
    .portfolio-group{scroll-margin-top:118px;margin-bottom:46px}.portfolio-group:last-child{margin-bottom:0}
    .portfolio-category-head{display:flex;align-items:center;justify-content:space-between;gap:28px;margin-bottom:18px}
    .portfolio-category-head h3{font-size:26px;font-weight:760;margin:0;white-space:nowrap}.portfolio-category-desc{margin:0;color:#b8c4d5;line-height:1.65;font-size:15px;text-align:right;max-width:560px;text-wrap:pretty}
    .portfolio-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .project{background:rgba(255,255,255,.066);border:1px solid rgba(255,255,255,.12);min-height:190px;transition:.25s}.project:hover{transform:translateY(-4px);border-color:rgba(215,170,84,.38);background:rgba(255,255,255,.095)}
    .project .tag{display:inline-flex;margin-bottom:18px;border-radius:999px;padding:6px 10px;background:rgba(117,168,255,.14);color:#cfe1ff;font-weight:740;font-size:12px}
    .project h3{font-size:19px;letter-spacing:0}.project p b{color:#edf3fb;font-weight:700}
    .principles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .list-card{background:linear-gradient(180deg,rgba(255,255,255,.11),rgba(255,255,255,.055));border:1px solid rgba(255,255,255,.16);box-shadow:var(--shadow)}
    .checklist{display:grid;gap:12px;margin:0;padding:0;list-style:none}.checklist li{display:grid;grid-template-columns:28px 1fr;gap:12px;color:#c8d3e3;line-height:1.68;font-size:15px}.checklist li:before{content:"✓";width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(141,229,199,.13);color:var(--green);font-weight:900;margin-top:1px}
    .ecosystem{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.eco{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.13)}
    .capability-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.capability-grid .feature{padding:24px}.capability-grid .feature h3{font-size:18px;line-height:1.35}
    .cta{padding:76px 0 98px}.cta-panel{padding:40px;border-radius:30px;background:linear-gradient(135deg,rgba(215,170,84,.20),rgba(117,168,255,.12)),rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);box-shadow:var(--shadow);display:grid;grid-template-columns:1.25fr .75fr;gap:30px;align-items:center}.cta h2{font-size:clamp(30px,4vw,44px);line-height:1.14}.cta p{color:#d1dae8;line-height:1.8;max-width:680px;font-size:15px}.contact-card{display:inline-grid;grid-template-columns:1fr auto;gap:16px;align-items:center;min-width:min(100%,430px);margin-top:22px;padding:15px 16px 15px 18px;border-radius:18px;background:rgba(6,15,28,.42);border:1px solid rgba(255,255,255,.13);box-shadow:inset 0 1px 0 rgba(255,255,255,.04)}.contact-label{display:block;color:#98a7ba;font-size:12px;font-weight:760;letter-spacing:.12em;text-transform:uppercase;margin-bottom:5px}.contact-email{display:block;color:#eef4fc;font-weight:780;letter-spacing:.01em}.contact-card .btn{box-shadow:none;white-space:nowrap}.cta-mini{display:grid;gap:12px}.cta-mini div{padding:16px 18px;border-radius:18px;background:rgba(6,15,28,.43);border:1px solid rgba(255,255,255,.13);color:#dce5f1;font-weight:720}
    .careers{padding:96px 0 106px}.careers-content{display:grid;grid-template-columns:minmax(0,1.56fr) minmax(280px,.44fr);gap:18px;align-items:stretch;margin-top:28px}.careers-card,.careers-contact{position:relative;overflow:hidden;padding:30px;border-radius:var(--card-radius);background:linear-gradient(180deg,rgba(255,255,255,.105),rgba(255,255,255,.052));border-color:rgba(255,255,255,.15)}.careers-card:before,.careers-contact:before{content:"";position:absolute;left:30px;right:30px;top:0;height:1px;background:linear-gradient(90deg,rgba(243,208,138,.86),rgba(243,208,138,.22),transparent)}.careers-card:after{content:"";position:absolute;left:30px;bottom:22px;width:76px;height:2px;background:linear-gradient(90deg,var(--gold),rgba(255,255,255,.18),transparent);opacity:.86}.careers-copy{position:relative;margin:0;color:#d5deeb;line-height:1.92;font-size:15.5px;text-wrap:pretty}.careers-copy p{margin:0;max-width:860px}.careers-copy p+p{margin-top:12px}.careers-contact{display:flex;flex-direction:column;justify-content:space-between;gap:28px;background:linear-gradient(180deg,rgba(255,255,255,.10),rgba(255,255,255,.048))}.careers-contact .contact-label{color:#aab8ca}.careers-contact-note{display:block;margin-top:12px;color:#d7e0eb;font-size:14px;line-height:1.78;text-wrap:pretty}.careers-contact-link{display:inline-flex;align-self:flex-start;align-items:center;justify-content:center;min-height:34px;margin-top:0;padding:0 14px;border-radius:999px;background:rgba(215,170,84,.10);border:1px solid rgba(215,170,84,.24);color:var(--gold2);font-size:14px;font-weight:780;white-space:nowrap;transition:.22s}.careers-contact-link:hover,.careers-contact-link:focus-visible{color:#ffe1a0;background:rgba(215,170,84,.16);border-color:rgba(215,170,84,.42);outline:none}
    footer{padding:28px 0 46px;border-top:1px solid rgba(255,255,255,.10);color:#909dad;font-size:13px}.footer-inner{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}
    .reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}.reveal.show{opacity:1;transform:none}
    body.lang-en h1{font-size:clamp(38px,5vw,62px);max-width:760px;line-height:1.08;letter-spacing:0}body.lang-en .hero-sub{font-size:clamp(16px,1.45vw,19px);max-width:720px;line-height:1.84}body.lang-en h2{font-size:clamp(26px,3vw,38px);letter-spacing:0}body.lang-en .section-kicker{letter-spacing:.13em}body.lang-en .section-head{align-items:flex-start}body.lang-en .section-desc{max-width:560px;font-size:14px;line-height:1.72;white-space:normal;overflow-wrap:break-word}body.lang-en .section-desc .en{display:block}body.lang-en .strategy-grid{grid-template-columns:repeat(2,1fr)}body.lang-en .project h3,body.lang-en .feature h3,body.lang-en .eco h3,body.lang-en .list-card h3{font-size:18px}
    @media (min-width:981px){body.lang-en .portfolio-layout{grid-template-columns:minmax(0,1fr) 190px;gap:22px}body.lang-en .pill{width:170px;min-height:38px;padding:7px 12px 7px 14px;font-size:13px;line-height:1.2;white-space:nowrap}}
    @media (min-width:981px) and (max-width:1100px){.section-desc{font-size:11px;line-height:1.7}.strategy-grid,.capability-grid{grid-template-columns:repeat(2,1fr)}body.lang-en .section-desc{font-size:13px;line-height:1.72;white-space:normal}}
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