/* AI 文化導覽平台｜全站樣式 */
:root{
    --navy:#0E2038;
    --navy-deep:#081523;
    --panel:rgba(255,255,255,.035);
    --panel-line:rgba(212,175,90,.22);
    --cream:#F4EFE3;
    --cream-dim:rgba(244,239,227,.72);
    --gold:#D4AF5A;
    --gold-deep:#B68C36;
    --green:#46C2A1;
    --line:rgba(244,239,227,.12);
    --display:"Noto Serif TC",serif;
    --body:"Noto Sans TC",sans-serif;
    --mono:"Space Mono",monospace;
    --maxw:1160px;
    --glow:0 0 0 1px rgba(212,175,90,.4),0 14px 50px -22px rgba(212,175,90,.4);
  }
  *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    background:var(--navy-deep); color:var(--cream);font-family:var(--body);line-height:1.85;
    -webkit-font-smoothing:antialiased;overflow-x:hidden;
    background-image:radial-gradient(rgba(212,175,90,.05) 1px,transparent 1px);
    background-size:24px 24px;
  }
  a{color:inherit;text-decoration:none}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 30px}
  .mono{font-family:var(--mono);letter-spacing:.04em}


  /* nav */
  .site-hd{position:sticky;top:0;z-index:60;background:rgba(8,21,35,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--panel-line)}
  .site-hd nav{display:flex;align-items:center;justify-content:space-between;height:66px;position:relative}
  .brand{display:flex;align-items:center;gap:11px;font-family:var(--display);font-weight:700;font-size:1.08rem;color:var(--cream)}
  .brand svg{width:24px;height:20px;filter:drop-shadow(0 0 6px rgba(212,175,90,.5))}
  .brand path,.brand line{stroke:var(--gold);stroke-width:2.2;fill:none;stroke-linecap:round}
  .navlinks{display:flex;gap:22px;font-size:.85rem;font-weight:500;align-items:center}
  .navlinks a{color:var(--cream-dim);position:relative;transition:color .2s}
  .navlinks a:hover,.navlinks a:focus-visible,.navlinks a.active{color:var(--gold)}
  .navlinks a:not(.nav-cta)::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1.5px;background:var(--gold);transition:width .25s}
  .navlinks a:not(.nav-cta):hover::after,.navlinks a:not(.nav-cta):focus-visible::after,.navlinks a.active::after{width:100%}
  .nav-cta{background:var(--gold);color:var(--navy-deep)!important;padding:9px 16px;border-radius:3px;font-weight:700;font-size:.82rem;transition:.2s;box-shadow:0 0 18px -4px rgba(212,175,90,.7)}
  .nav-cta:hover{background:var(--cream)}
  .menu-btn{display:none;background:none;border:1px solid var(--panel-line);border-radius:4px;padding:7px 11px;font-family:var(--mono);font-size:.74rem;color:var(--cream);cursor:pointer}

  /* buttons */
  .btn{font-family:var(--body);font-weight:500;font-size:.95rem;padding:14px 28px;border-radius:3px;cursor:pointer;border:1.5px solid transparent;transition:transform .18s,background .2s,color .2s,box-shadow .2s;display:inline-flex;align-items:center;gap:9px}
  .btn-gold{background:var(--gold);border-color:var(--gold);color:var(--navy-deep);font-weight:700;box-shadow:0 0 24px -6px rgba(212,175,90,.8)}
  .btn-gold:hover,.btn-gold:focus-visible{background:var(--cream);border-color:var(--cream);transform:translateY(-2px)}
  .btn-line{background:transparent;border-color:rgba(244,239,227,.45);color:var(--cream)}
  .btn-line:hover,.btn-line:focus-visible{background:var(--cream);color:var(--navy);transform:translateY(-2px)}

  /* section */
  .sec{padding:104px 0;position:relative}
  .sec-label{font-family:var(--mono);font-size:.8rem;letter-spacing:.1em;margin-bottom:14px;display:flex;align-items:center;gap:10px;color:var(--gold)}
  .sec-label .live{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green);animation:pulse 2s infinite}
  @keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
  .sec-h{font-family:var(--display);font-weight:700;font-size:clamp(1.85rem,4vw,2.7rem);line-height:1.28;margin-bottom:16px;color:var(--cream)}
  .sec-intro{max-width:620px;color:var(--cream-dim);font-weight:300;font-size:1.05rem;margin-bottom:54px}
  .center{text-align:center}.center .sec-label{justify-content:center}.center .sec-intro{margin-inline:auto}

  /* HUD frame signature */
  .frame{position:relative}
  .frame::before,.frame::after{content:"";position:absolute;width:16px;height:16px;border:1.5px solid var(--gold);pointer-events:none;opacity:.7}
  .frame::before{top:8px;left:8px;border-right:none;border-bottom:none}
  .frame::after{bottom:8px;right:8px;border-left:none;border-top:none}

  /* glass */
  .glass{background:var(--panel);border:1px solid var(--line);border-radius:5px;backdrop-filter:blur(6px);transition:transform .22s,box-shadow .22s,border-color .22s}
  .glass:hover{transform:translateY(-5px);border-color:var(--gold);box-shadow:var(--glow)}

  /* hero */
  .hero{position:relative;overflow:hidden;padding:100px 0 108px;border-bottom:1px solid var(--panel-line)}
  #net{position:absolute;inset:0;width:100%;height:100%;z-index:0}
  /* 分頁的全頁動態背景（由 site.js 自動產生） */
  #net-bg{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
  main,.site-ft{position:relative;z-index:1}
  .hero-glow{position:absolute;right:-10%;top:-20%;width:60%;height:120%;background:radial-gradient(closest-side,rgba(70,194,161,.12),transparent);z-index:0;pointer-events:none}
  .hero-torii{position:absolute;right:4%;top:50%;transform:translateY(-50%);width:min(440px,42%);z-index:1;opacity:.55}
  .hero-torii path,.hero-torii line{fill:none;stroke:var(--gold);stroke-width:2;stroke-linecap:round}
  .hero-torii .faint{stroke:rgba(212,175,90,.3)}
  .hero-inner{position:relative;z-index:3;max-width:680px}
  .eyebrow{font-family:var(--mono);font-size:.95rem;color:var(--gold);letter-spacing:.08em;margin-bottom:20px}
  .status{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:.74rem;color:var(--green);border:1px solid rgba(70,194,161,.35);border-radius:30px;padding:5px 14px;margin-bottom:24px;letter-spacing:.05em}
  .status .live{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green);animation:pulse 2s infinite}
  .hero h1{font-family:var(--display);font-weight:900;font-size:clamp(2.4rem,6.2vw,4.2rem);line-height:1.16;margin-bottom:20px;color:var(--cream)}
  .hero h1 .x{color:var(--gold);font-weight:500}
  .hero .tagline{font-family:var(--mono);font-size:.95rem;color:var(--gold);margin-bottom:18px;letter-spacing:.05em}
  .hero .tagline .cursor{display:inline-block;width:9px;background:var(--gold);margin-left:2px;animation:blink 1.1s step-end infinite}
  @keyframes blink{50%{opacity:0}}
  .hero .lede{font-size:1.08rem;color:var(--cream-dim);font-weight:300;max-width:530px;margin-bottom:38px}
  .hero .cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:44px}

  /* 計畫介紹 */
  .intro-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:start}
  .intro-grid p{color:var(--cream-dim);font-weight:300;margin-bottom:18px}
  .info-panel{padding:8px 0;border:1px solid var(--line);border-radius:6px;background:var(--panel);backdrop-filter:blur(6px);transition:border-color .22s,box-shadow .22s}
  .info-panel:hover{border-color:var(--gold);box-shadow:var(--glow)}
  .info-panel .ip-head{font-family:var(--mono);font-size:.74rem;color:var(--gold);letter-spacing:.06em;padding:14px 22px;border-bottom:1px solid var(--line)}
  .info-row{display:flex;justify-content:space-between;gap:16px;padding:13px 22px;border-bottom:1px solid var(--line);font-size:.9rem}
  .info-row:last-child{border-bottom:none}
  .info-row .k{font-family:var(--mono);font-size:.78rem;color:var(--cream-dim)}
  .info-row .v{font-weight:500;text-align:right}
  .info-row .v.live-v{color:var(--green)}

  /* highlights */
  .hl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
  .hl{padding:34px 28px 30px}
  .hl .head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
  .hl .ic{width:46px;height:46px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:rgba(212,175,90,.1);border:1px solid var(--panel-line)}
  .hl .ic svg{width:23px;height:23px;fill:none;stroke:var(--gold);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
  .hl .idx{font-family:var(--mono);font-size:.74rem;color:var(--cream-dim)}
  .hl h3{font-family:var(--display);font-weight:700;font-size:1.32rem;margin-bottom:10px;color:var(--cream)}
  .hl p{color:var(--cream-dim);font-weight:300;font-size:.97rem}

  /* sites */
  .sites{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
  .site{display:flex;flex-direction:column;overflow:hidden}
  .site-img{height:130px;display:flex;align-items:flex-end;justify-content:space-between;padding:13px;position:relative}
  .site-img::after{content:"";position:absolute;inset:0;background:linear-gradient(transparent,rgba(8,21,35,.55))}
  .site-img.s1{background:linear-gradient(150deg,#2b4a73,#102742)}
  .site-img.s2{background:linear-gradient(150deg,#1f6b5a,#0f3a30)}
  .site-img.s3{background:linear-gradient(150deg,#3f6b45,#21401f)}
  .site-img .tag,.site-img .geo{position:relative;z-index:2;font-family:var(--mono);font-size:.66rem;color:var(--cream);background:rgba(8,21,35,.5);padding:3px 8px;border-radius:2px}
  .site-b{padding:20px 22px 22px;flex:1;display:flex;flex-direction:column}
  .site-b h3{font-family:var(--display);font-weight:700;font-size:1.3rem;margin-bottom:4px;color:var(--cream)}
  .site-b .sub{font-family:var(--mono);font-size:.72rem;color:var(--green);margin-bottom:12px}
  .site-b p{font-size:.9rem;color:var(--cream-dim);font-weight:300;margin-bottom:14px;flex:1}
  .site-b .more{font-family:var(--mono);font-size:.78rem;color:var(--gold);font-weight:700}
  .site.future{align-items:center;justify-content:center;text-align:center;padding:40px 22px;border-style:dashed}
  .site.future .fk{font-family:var(--mono);font-size:.7rem;color:var(--cream-dim);letter-spacing:.08em;margin-bottom:10px}
  .site.future h3{font-family:var(--display);font-weight:700;font-size:1.3rem;margin-bottom:8px;color:var(--cream)}
  .site.future p{font-size:.86rem;color:var(--cream-dim);font-weight:300}

  /* AI guide console */
  .console{max-width:880px;margin:0 auto;border:1px solid var(--panel-line);border-radius:8px;background:rgba(8,21,35,.6);overflow:hidden;box-shadow:0 24px 70px -34px rgba(0,0,0,.8)}
  .console-bar{display:flex;align-items:center;gap:8px;padding:11px 16px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:.74rem;color:var(--cream-dim)}
  .console-bar i{width:10px;height:10px;border-radius:50%;display:block}
  .console-bar i.r{background:#e0654f}.console-bar i.y{background:var(--gold)}.console-bar i.g{background:var(--green)}
  .console-bar span{margin-left:8px}
  .console-body{padding:30px 28px 32px}
  .prompt{font-family:var(--mono);font-size:.84rem;color:var(--green);margin-bottom:20px}
  .picks{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:24px}
  .pick{flex:1;min-width:160px;background:var(--panel);border:1.5px solid var(--line);border-radius:5px;padding:18px 22px;cursor:pointer;transition:.2s;text-align:left}
  .pick:hover{transform:translateY(-3px);border-color:rgba(212,175,90,.5)}
  .pick.on{border-color:var(--gold);background:rgba(212,175,90,.1);box-shadow:0 0 22px -8px rgba(212,175,90,.7)}
  .pick .pk{font-family:var(--mono);font-size:.7rem;color:var(--gold);margin-bottom:5px}
  .pick h4{font-family:var(--display);font-weight:700;font-size:1.18rem;color:var(--cream)}
  .console-action{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
  .guide-hint{font-family:var(--mono);font-size:.78rem;color:var(--cream-dim)}

  /* outcomes */
  .out-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
  .out{padding:28px 22px}
  .out .on{font-family:var(--mono);font-size:.74rem;color:var(--gold)}
  .out h4{font-family:var(--display);font-weight:700;font-size:1.28rem;margin:10px 0 8px;color:var(--cream)}
  .out p{font-size:.85rem;color:var(--cream-dim);font-weight:300}

  /* events */
  .ev-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:46px;align-items:start}
  .ev-main{padding:30px 32px}
  .ev-main h3{font-family:var(--display);font-weight:700;font-size:1.5rem;margin-bottom:8px;color:var(--cream)}
  .ev-main .when{font-family:var(--mono);font-size:.82rem;color:var(--green);margin-bottom:14px}
  .ev-main p{color:var(--cream-dim);font-weight:300;margin-bottom:22px}
  .ev-side h4{font-family:var(--mono);font-size:.78rem;color:var(--gold);letter-spacing:.06em;margin-bottom:16px}
  .gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}
  .gallery .g{aspect-ratio:1;border-radius:3px;background:linear-gradient(150deg,#1c3552,#0f2742);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:.66rem;color:var(--cream-dim);overflow:hidden}
  .gallery .g img{width:100%;height:100%;object-fit:cover}

  /* partners */
  .part-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
  .logo-slot{height:96px;border:1px dashed var(--line);border-radius:6px;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:.78rem;color:var(--cream-dim);background:var(--panel);transition:border-color .22s,box-shadow .22s,transform .22s}
  .logo-slot:hover{border-color:var(--gold);color:var(--gold);box-shadow:var(--glow);transform:translateY(-3px)}
  .logo-slot img{max-width:80%;max-height:70%;object-fit:contain}

  /* footer */
  .site-ft{padding:64px 0 34px;border-top:1px solid var(--panel-line);background:rgba(8,21,35,.6)}
  .foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:42px;margin-bottom:42px}
  .foot-brand h4{font-family:var(--display);font-size:1.3rem;font-weight:700;margin-bottom:12px;color:var(--cream)}
  .foot-brand p{color:var(--cream-dim);font-weight:300;font-size:.92rem;max-width:340px}
  .foot-col h5{font-family:var(--mono);font-size:.76rem;color:var(--gold);letter-spacing:.06em;margin-bottom:16px}
  .foot-col p,.foot-col a{display:block;color:var(--cream-dim);font-size:.9rem;font-weight:300;margin-bottom:9px}
  .foot-col a:hover{color:var(--gold)}
  .foot-bottom{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-family:var(--mono);font-size:.74rem;color:rgba(244,239,227,.45)}

  .reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
  .reveal.in{opacity:1;transform:none}

  @media(max-width:980px){.sites{grid-template-columns:1fr 1fr}}
  @media(max-width:880px){
    .navlinks{display:none}.menu-btn{display:block}
    .navlinks.open{display:flex;flex-direction:column;align-items:flex-start;gap:16px;position:absolute;top:66px;left:0;right:0;padding:22px 30px 26px;background:#081523;border-bottom:1px solid var(--panel-line);box-shadow:0 20px 40px -10px rgba(0,0,0,.6)}
    .hl-grid,.out-grid,.part-grid{grid-template-columns:1fr 1fr}
    .intro-grid,.ev-grid,.foot-grid{grid-template-columns:1fr}
    .hero-torii{opacity:.22}.sec{padding:74px 0}
  }
  @media(max-width:560px){
    .hl-grid,.sites,.out-grid,.part-grid{grid-template-columns:1fr}
  }
  @media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important}.reveal{opacity:1;transform:none;transition:none}}