/* 知緒 zhixu.tech v3 —— 深夜藍 × 青色光 × 和風紅 */
:root{
  --bg:#070b14; --bg2:#0d1424; --ink:#e9f1ff; --mute:#9fb0c8; --dim:#6b7a92;
  --cyan:#4fe3ff; --cyan-rgb:79,227,255; --red:#ff5a6e; --gold:#e8c27a;
  --serif:"Noto Serif TC","Songti TC",Georgia,serif;
  --sans:"Noto Sans TC","Microsoft JhengHei","PingFang TC",system-ui,sans-serif;
}
*{ box-sizing:border-box; }
html{ background:var(--bg); }
body{ margin:0; color:var(--ink); background:var(--bg); font-family:var(--sans); line-height:1.75; -webkit-text-size-adjust:100%; }
img{ max-width:100%; height:auto; }
a{ color:var(--cyan); }

#gl{ position:fixed; inset:0; width:100%; height:100%; display:block; z-index:0; }
.veil{ position:fixed; inset:0; z-index:1; pointer-events:none;
  background:radial-gradient(ellipse at 30% 50%, rgba(7,11,20,.0) 0%, rgba(7,11,20,.35) 70%, rgba(7,11,20,.75) 100%); }
.no-gl #gl{ display:none; }
.no-gl body, html.no-gl{ background:radial-gradient(ellipse at 70% 20%, #13213a, var(--bg) 60%); }

/* 頁首 */
.top{ position:fixed; top:0; left:0; right:0; z-index:20; display:flex; align-items:center; gap:18px;
  padding:12px 20px; background:linear-gradient(to bottom, rgba(7,11,20,.85), rgba(7,11,20,0)); }
.brand{ display:flex; align-items:center; gap:10px; color:var(--ink); text-decoration:none; font-family:var(--serif); font-size:20px; font-weight:700; }
.brand > img{ height:40px; width:40px; }
.brand-word{ display:flex; align-items:center; }
.brand-word img{ height:32px; width:auto; }
.brand small{ font-family:var(--sans); font-size:11px; letter-spacing:.2em; color:var(--cyan); margin-left:6px; font-weight:500; }
.top nav{ display:flex; gap:18px; margin-left:auto; }
.top nav a{ color:var(--mute); text-decoration:none; font-size:14px; }
.top nav a:hover{ color:var(--cyan); }
.ctrl{ display:flex; gap:6px; }
.ctrl button{ font:inherit; font-size:13px; color:var(--mute); background:rgba(13,20,36,.6); border:1px solid rgba(var(--cyan-rgb),.25);
  padding:4px 10px; border-radius:999px; cursor:pointer; }
.ctrl button[aria-pressed="true"]{ color:var(--bg); background:var(--cyan); border-color:var(--cyan); }

/* 區塊 */
main{ position:relative; z-index:2; }
.sec{ position:relative; padding:110px 6vw 80px; }
.sec-hero{ min-height:100vh; display:flex; align-items:center; }
.sec-logic{ min-height:260vh; }
.sec-organs{ min-height:170vh; }
.sec-scenes{ min-height:120vh; }
.panel{ max-width:560px; padding:28px 30px; background:rgba(7,11,20,.62); border:1px solid rgba(var(--cyan-rgb),.16);
  border-radius:4px; backdrop-filter:blur(6px); -webkit-backdrop-filter:blur(6px); }
.sec-hero .panel{ background:rgba(7,11,20,.35); border-color:transparent; }
.panel.wide{ max-width:820px; margin:0 auto 28px; }
.sec-logic .panel, .sec-organs .panel{ position:sticky; top:90px; }
.kicker{ margin:0 0 10px; font-size:13px; letter-spacing:.22em; color:var(--cyan); }
h1,h2,h3{ font-family:var(--serif); line-height:1.3; margin:0 0 14px; }
h1{ font-size:clamp(30px,4.6vw,58px); font-weight:900; }
h1 em{ font-style:normal; color:var(--cyan); text-shadow:0 0 24px rgba(var(--cyan-rgb),.55); }
h2{ font-size:clamp(24px,3vw,36px); }
h3{ font-size:20px; margin-top:22px; }
.lead{ color:#c9d6ea; font-size:16px; }
.lead strong{ color:var(--ink); }
.points{ list-style:none; padding:0; margin:20px 0; display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px 18px; }
.points li{ font-size:14px; color:var(--mute); border-left:2px solid var(--red); padding-left:10px; }
.points b{ display:block; color:var(--ink); font-size:16px; }
.points b small{ display:inline-block; margin-left:8px; font-size:12px; color:var(--cyan); font-weight:500; letter-spacing:.06em; }
.pts-t{ font-size:15px; letter-spacing:.2em; color:var(--gold); margin:18px 0 0; font-family:var(--sans); font-weight:500; }
.btns{ display:flex; flex-wrap:wrap; gap:10px; margin-top:18px; }
.btn{ display:inline-flex; align-items:center; font:inherit; font-size:15px; font-weight:500; color:var(--bg); background:var(--cyan);
  border:1px solid var(--cyan); padding:10px 18px; border-radius:3px; cursor:pointer; text-decoration:none;
  box-shadow:0 0 22px rgba(var(--cyan-rgb),.35); }
.btn.ghost{ color:var(--cyan); background:transparent; box-shadow:none; }
.btn:hover{ filter:brightness(1.12); }
.hero-img{ display:none; }
.no-gl .hero-img{ display:block; position:absolute; right:4vw; bottom:0; max-height:86vh; width:auto; z-index:-1; opacity:.95; }
.scroll-hint{ position:absolute; left:50%; bottom:26px; transform:translateX(-50%); font-size:12px; letter-spacing:.3em; color:var(--dim);
  animation:hint 2.4s ease-in-out infinite; margin:0; }
@keyframes hint{ 0%,100%{ opacity:.4; transform:translate(-50%,0) } 50%{ opacity:1; transform:translate(-50%,6px) } }

.contrast{ font-size:15px; color:var(--mute); border-top:1px solid rgba(var(--cyan-rgb),.15); border-bottom:1px solid rgba(var(--cyan-rgb),.15); padding:10px 0; }
.contrast span{ display:inline-block; min-width:4.5em; color:var(--dim); font-size:13px; }
.contrast .hl{ color:var(--cyan); }
.layers{ list-style:none; padding:0; margin:18px 0; }
.layers li{ display:flex; gap:14px; padding:10px 0; border-bottom:1px dashed rgba(var(--cyan-rgb),.14); font-size:14px; color:var(--mute); }
.layers i{ font-style:normal; font-family:var(--serif); color:var(--red); font-size:20px; line-height:1.2; }
.layers b{ color:var(--ink); font-size:16px; margin-right:8px; }
.layers small{ color:var(--cyan); font-size:11px; letter-spacing:.08em; }
.layers div b + small{ display:inline-block; margin-bottom:2px; }
.layers div{ display:block; }
.layers div small::after{ content:""; display:block; }
.core{ margin-top:10px; }
.core-t{ margin:0 0 8px; font-size:13px; color:var(--gold); letter-spacing:.15em; }
.core-3{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:8px; }
.core-3 span{ text-align:center; font-size:14px; padding:10px 6px; border:1px solid rgba(232,194,122,.4); color:var(--gold); background:rgba(232,194,122,.06); }

.organs, .evo{ list-style:none; padding:0; margin:12px 0; }
.organs li, .evo li{ font-size:14px; color:var(--mute); padding:8px 0; border-bottom:1px dashed rgba(var(--cyan-rgb),.14); }
.organs b, .evo b{ display:block; color:var(--ink); font-size:16px; }
.organs strong{ color:var(--gold); }
.evo{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:0 18px; }

.cards{ display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:18px; max-width:1100px; margin:0 auto; }
.card{ background:rgba(13,20,36,.72); border:1px solid rgba(var(--cyan-rgb),.14); border-radius:4px; padding:18px 18px 16px;
  backdrop-filter:blur(4px); -webkit-backdrop-filter:blur(4px); transition:transform .35s, border-color .35s; }
.card:hover{ transform:translateY(-6px); border-color:rgba(var(--cyan-rgb),.5); }
.card img{ display:block; height:150px; width:auto; margin:0 auto 10px; object-fit:contain; filter:drop-shadow(0 0 18px rgba(var(--cyan-rgb),.18)); }
.card h3{ margin:6px 0 6px; font-size:19px; }
.card p{ margin:0; font-size:14px; color:var(--mute); }

blockquote{ margin:14px 0; padding:12px 16px; border-left:3px solid var(--cyan); background:rgba(var(--cyan-rgb),.06); font-size:14px; color:#c9d6ea; }
.msg{ font-size:13px; color:var(--gold); min-height:1.2em; }
.legal{ font-size:12px; color:var(--dim); margin-top:16px; }
.foot{ max-width:820px; margin:30px auto 0; display:flex; flex-wrap:wrap; gap:8px 18px; font-size:12px; color:var(--dim); padding-bottom:30vh; }
.foot a{ color:var(--mute); }
.foot span{ width:100%; }

/* 電影字幕 */
.subtitle{ position:fixed; left:50%; bottom:11vh; transform:translateX(-50%); z-index:15; width:min(880px, calc(100vw - 32px));
  text-align:center; pointer-events:none; opacity:0; transition:opacity .45s ease; }
.subtitle.on{ opacity:1; }
.subtitle .who{ display:inline-block; font-size:11px; letter-spacing:.35em; color:var(--cyan); margin-bottom:4px; }
.subtitle p{ margin:0; font-family:var(--serif); font-size:clamp(16px,2vw,23px); line-height:1.6; color:#fff;
  text-shadow:0 0 6px #000, 0 2px 14px rgba(0,0,0,.9); padding:6px 18px;
  background:linear-gradient(90deg, rgba(7,11,20,0), rgba(7,11,20,.55) 20%, rgba(7,11,20,.55) 80%, rgba(7,11,20,0)); }
.tour-stop{ position:fixed; right:16px; bottom:16px; z-index:21; font:inherit; font-size:13px; color:var(--ink);
  background:rgba(13,20,36,.85); border:1px solid rgba(var(--cyan-rgb),.4); padding:8px 14px; border-radius:999px; cursor:pointer; }
.panel .punch{ margin:18px 0 0; padding:12px 16px; border-left:3px solid var(--red); background:rgba(var(--cyan-rgb),.06);
  font-family:"Noto Serif TC",serif; font-size:clamp(17px,2vw,21px); color:var(--ink); font-weight:700; }
.duo{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; max-width:820px; margin:0 auto 34px; }
.persona{ background:rgba(13,20,36,.78); border:1px solid rgba(var(--cyan-rgb),.22); border-top:2px solid var(--red); border-radius:4px; padding:18px 20px; }
.persona h3{ margin:0 0 8px; font-size:20px; }
.persona p{ margin:0; font-size:15px; color:#c9d6ea; }
.cards-t{ max-width:1100px; margin:0 auto 14px; color:var(--cyan); letter-spacing:.12em; font-size:14px; }
.tour-stop[hidden]{ display:none; }

/* 寬度斷點（只看視窗寬） */
@media (min-width:1000px){
  .subtitle{ left:66%; width:min(640px, 52vw); }
  .sec-hero .panel, .sec-logic .panel, .sec-organs .panel{ margin-left:2vw; }
}
@media (max-width:999px){
  .top nav{ display:none; }
  .sec{ padding:90px 16px 60px; }
  .sec-hero{ align-items:flex-end; padding-top:52vh; }
  .sec-hero .panel{ background:rgba(7,11,20,.7); }
  .sec-logic, .sec-organs{ padding-top:46vh; min-height:auto; }
  .sec-logic .panel, .sec-organs .panel{ position:relative; top:0; }
  .panel{ padding:22px 18px; margin:0 auto; }
  .no-gl .hero-img{ position:absolute; top:60px; left:50%; transform:translateX(-50%); right:auto; bottom:auto; max-height:46vh; }
  .subtitle{ bottom:0; width:100%; padding:8px 14px 12px; background:rgba(7,11,20,.92); border-top:1px solid rgba(var(--cyan-rgb),.25); }
  .subtitle p{ background:none; font-size:15px; padding:0; }
  .subtitle .who{ margin-bottom:0; }
  .foot{ padding-bottom:120px; }
}
@media (max-width:520px){
  .points, .evo, .duo{ grid-template-columns:1fr; }
  .core-3{ grid-template-columns:1fr; }
  .ctrl button{ padding:4px 8px; }
  .brand small{ display:none; }
}

/* ===== v4：流程對照、漏斗五層圖示、技術合作 ===== */
.flow{ border-top:1px solid rgba(var(--cyan-rgb),.15); border-bottom:1px solid rgba(var(--cyan-rgb),.15); padding:10px 0; margin:6px 0 4px; }
.flow-row{ display:flex; flex-wrap:wrap; align-items:center; gap:6px; margin:6px 0; font-size:13px; }
.flow-row .who{ min-width:4.6em; color:var(--dim); font-size:12px; letter-spacing:.1em; }
.flow-row .st{ padding:3px 9px; border:1px solid rgba(159,176,200,.3); border-radius:999px; color:var(--mute); }
.flow-row .st{ position:relative; }
.flow-row .st + .st{ margin-left:14px; }
.flow-row .st + .st::before{ content:"→"; position:absolute; left:-16px; color:var(--dim); }
.flow-row.new .who{ color:var(--cyan); }
.flow-row.new .st{ color:var(--ink); border-color:rgba(var(--cyan-rgb),.45); background:rgba(var(--cyan-rgb),.06); }
.flow-row.new .st + .st::before{ color:var(--cyan); }
.layers li{ align-items:flex-start; transition:background .4s, border-color .4s; border-left:2px solid transparent; padding-left:8px; }
.layers li.on{ background:linear-gradient(90deg, rgba(var(--cyan-rgb),.12), rgba(var(--cyan-rgb),0)); border-left-color:var(--cyan); color:#d6e4f5; }
.layers .ico{ position:relative; flex:0 0 44px; width:44px; height:44px; }
.layers .ico svg{ width:44px; height:44px; fill:none; stroke:var(--cyan); stroke-width:1.6; stroke-linecap:round; stroke-linejoin:round; opacity:.75; transition:opacity .4s, filter .4s; }
.layers li.on .ico svg{ opacity:1; filter:drop-shadow(0 0 6px rgba(var(--cyan-rgb),.8)); }
.layers .ico i{ position:absolute; right:-6px; bottom:-6px; font-size:12px; background:var(--bg); padding:0 3px; line-height:1.2; }
.layers li > div{ flex:1; }
/* 圖示動畫：每層各自的動作 */
.ly-prism .ray{ stroke-dasharray:18; animation:zx-ray 2.4s ease-in-out infinite; }
.ly-prism .r1{ stroke:var(--red); } .ly-prism .r2{ stroke:var(--gold); animation-delay:.25s; } .ly-prism .r3{ animation-delay:.5s; }
.ly-prism .ln{ stroke:#fff; }
@keyframes zx-ray{ 0%{ stroke-dashoffset:18 } 45%,75%{ stroke-dashoffset:0 } 100%{ stroke-dashoffset:-18 } }
.ly-loop .nd{ fill:var(--bg); } .ly-loop .n1{ stroke:var(--red); } .ly-loop .n2{ stroke:var(--gold); }
.ly-loop .run{ fill:#fff; stroke:none; transform-origin:20px 20px; animation:zx-orbit 3.6s steps(1) infinite, zx-spin 3.6s cubic-bezier(.6,0,.4,1) infinite; }
@keyframes zx-spin{ 0%{ transform:rotate(0) } 33.3%{ transform:rotate(120deg) } 66.6%{ transform:rotate(240deg) } 100%{ transform:rotate(360deg) } }
@keyframes zx-orbit{ 0%{ opacity:1 } }
.ly-scaf .bk{ animation:zx-build 4.8s ease-in-out infinite; }
.ly-scaf .b4,.ly-scaf .b5{ stroke:var(--gold); }
.ly-scaf .b2{ animation-delay:.2s } .ly-scaf .b3{ animation-delay:.4s } .ly-scaf .b4{ animation-delay:.6s } .ly-scaf .b5{ animation-delay:.8s } .ly-scaf .b6{ animation-delay:1s }
@keyframes zx-build{ 0%{ opacity:0; transform:translateY(-8px) } 15%,80%{ opacity:1; transform:none } 100%{ opacity:0 } }
.ly-gyro svg{ overflow:visible; }
.ly-gyro .g1{ transform-origin:20px 20px; animation:zx-gyro 4s ease-in-out infinite; }
.ly-gyro .g2{ transform-origin:20px 20px; animation:zx-gyro 4s ease-in-out infinite reverse; stroke:var(--gold); }
.ly-gyro .g3{ stroke:var(--red); } .ly-gyro .nd{ fill:#fff; stroke:none; }
@keyframes zx-gyro{ 0%{ transform:rotate(0) } 50%{ transform:rotate(200deg) } 70%,100%{ transform:rotate(360deg) } }
.ly-strata .st{ stroke:var(--gold); } .ly-strata .s4{ stroke:var(--red); animation:zx-fade 5s ease-in-out infinite; }
.ly-strata .drop{ fill:var(--gold); stroke:none; animation:zx-drop 2.2s ease-in infinite; }
.ly-strata .d2{ animation-delay:.7s } .ly-strata .d3{ animation-delay:1.4s }
@keyframes zx-drop{ 0%{ transform:translateY(0); opacity:1 } 85%{ opacity:1 } 100%{ transform:translateY(11px); opacity:0 } }
@keyframes zx-fade{ 0%,55%{ opacity:1 } 80%{ opacity:.1 } 100%{ opacity:1 } }
.partner{ text-align:left; }
.partner .npg{ display:inline-flex; align-items:center; gap:10px; color:var(--ink); text-decoration:none; font-size:15px; margin:4px 0 8px; }
.partner .npg img{ height:22px; width:auto; }
.partner p:last-child{ font-size:13px; color:var(--mute); margin:0; }
@media (max-width:520px){
  .brand > img{ height:34px; width:34px; } .brand-word img{ height:26px; }
  .flow-row .who{ width:100%; }
}