:root{
  --bg:#fafafa;
  --bg-soft:#f1eefe;
  --panel:#ffffff;
  --line:#e4defa;
  --text:#141021;
  --muted:#6b6485;
  --accent:#7c3aed;      /* 紫 primary */
  --accent2:#a78bfa;     /* 淺紫 */
  --accent3:#5b21b6;     /* 深紫 */
  --neon:#22d3ee;        /* 青 pop */
  --lime:#a3e635;        /* 青檸 pop */
  --gold:#ffd166;        /* 金（紫底文字用） */
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:'Sora','PingFang HK','Microsoft JhengHei',sans-serif;line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* ═══ NAV（白底）═══ */
nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-family:'Unbounded',sans-serif;font-weight:900;font-size:15px;color:var(--text)}
.brand img{height:24px;max-width:46vw;width:auto}
/* logo 白色版喺白底要變紫 — filter 唔夠靚，用 mix-blend 或者直接整紫字版 */
.brand img.logo-white{filter:invert(1) brightness(0.15)}
.nav-links{display:flex;gap:24px;align-items:center}
.nav-links a{color:var(--muted);text-decoration:none;font-size:14px;font-weight:600;transition:color .2s;position:relative}
.nav-links a:hover{color:var(--accent)}
.nav-cta{background:var(--accent);color:var(--gold)!important;padding:10px 20px;border-radius:999px;text-decoration:none;font-weight:700;font-size:14px;transition:transform .2s,box-shadow .2s}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(124,58,237,.35)}
.nav-burger{display:none;background:none;border:0;cursor:pointer;padding:8px;flex-direction:column;gap:4px;z-index:101}
.nav-burger span{display:block;width:20px;height:2px;background:var(--text);transition:.25s}
.nav-burger.x span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-burger.x span:nth-child(2){opacity:0}
.nav-burger.x span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media(max-width:1080px){
  .nav-burger{display:flex}
  .nav-links{position:fixed;top:0;right:0;width:min(78vw,340px);height:100vh;height:100dvh;background:#ffffff;flex-direction:column;padding:80px 28px 28px;gap:4px;transform:translateX(110%);transition:transform .28s ease;z-index:99999;border-left:1px solid var(--line);overflow-y:auto;isolation:isolate;opacity:1;-webkit-overflow-scrolling:touch}
  .nav-links.open{transform:translateX(0)}
  .nav-links a{padding:12px 6px;font-size:16px;border-bottom:1px solid var(--line);color:var(--text);opacity:1}
}
@media(max-width:560px){.nav-cta{display:none}}

/* ═══ HERO（白底紫大字 — GenZ 放大）═══ */
.hero{padding:130px 0 110px;position:relative;overflow:hidden;background:
  radial-gradient(900px 480px at 85% -10%,rgba(124,58,237,.14),transparent 60%),
  radial-gradient(700px 420px at -10% 110%,rgba(167,139,250,.12),transparent 60%),
  var(--bg)}
.hero::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:56px 56px;opacity:.5;
  -webkit-mask-image:radial-gradient(720px 520px at 30% 30%,#000 20%,transparent 75%);
  mask-image:radial-gradient(720px 520px at 30% 30%,#000 20%,transparent 75%)}
.hero .wrap{position:relative;z-index:2}
.kicker{font-family:'JetBrains Mono',monospace;font-size:12.5px;font-weight:700;letter-spacing:.16em;color:var(--accent);text-transform:uppercase;
  display:inline-block;background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:7px 16px;margin-bottom:26px}
.hero h1{font-family:'Unbounded',sans-serif;font-weight:900;font-size:clamp(34px,6.2vw,74px);line-height:1.12;color:var(--text);letter-spacing:-.02em;margin:0 0 26px}
.hero h1 .hl{color:var(--accent);position:relative;display:inline-block}
.hero h1 .hl::after{content:"";position:absolute;left:0;right:0;bottom:.06em;height:.14em;background:linear-gradient(90deg,var(--accent2),var(--neon));border-radius:99px;z-index:-1;transform:rotate(-1.2deg)}
.hero .sub{color:var(--muted);font-size:18px;max-width:640px;margin:0 0 34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.btn{display:inline-block;padding:15px 30px;border-radius:999px;text-decoration:none;font-weight:700;font-size:15.5px;transition:transform .2s,box-shadow .2s}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(124,58,237,.4)}
.btn-ghost{border:2px solid var(--accent);color:var(--accent);background:transparent}
.btn-ghost:hover{background:var(--accent);color:var(--gold);transform:translateY(-2px)}

/* 跑馬燈 */
.marquee{overflow:hidden;background:var(--accent);padding:13px 0;transform:rotate(-1.1deg);margin:40px -20px 0}
.marquee-track{display:flex;gap:44px;white-space:nowrap;animation:mar 28s linear infinite;color:var(--gold);font-family:'JetBrains Mono',monospace;font-size:14px;font-weight:700;letter-spacing:.1em}
@keyframes mar{to{transform:translateX(-50%)}}

/* 數據條 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:64px 0 0}
.stat{background:var(--panel);border:1.5px solid var(--line);border-radius:18px;padding:24px 18px;text-align:center;transition:transform .25s,box-shadow .25s}
.stat:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(124,58,237,.13)}
.stat b{font-family:'Unbounded',sans-serif;font-weight:900;font-size:34px;color:var(--accent);display:block}
.stat span{color:var(--muted);font-size:13.5px}
@media(max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}}

/* ═══ 通用 section ═══ */
section{padding:88px 0}
.sec.alt{background:var(--bg-soft)}
.sec-head{margin-bottom:44px;max-width:720px}
.no{font-family:'JetBrains Mono',monospace;font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.18em;text-transform:uppercase;display:block;margin-bottom:14px}
.sec-head h2{font-family:'Unbounded',sans-serif;font-weight:900;font-size:clamp(26px,3.6vw,44px);line-height:1.18;letter-spacing:-.01em;margin-bottom:16px;color:var(--text)}
.sec-head p{color:var(--muted);font-size:16.5px}

/* 卡片 */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cards.three{grid-template-columns:repeat(3,1fr)}
.cards.two{grid-template-columns:repeat(2,1fr)}
@media(max-width:980px){.cards,.cards.four{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.cards,.cards.four,.cards.two{grid-template-columns:1fr}}
.card{background:var(--panel);border:1.5px solid var(--line);border-radius:18px;padding:26px 22px;transition:transform .25s,box-shadow .25s,border-color .25s;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--accent),var(--neon));opacity:0;transition:opacity .25s}
.card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(124,58,237,.15);border-color:var(--accent2)}
.card:hover::before{opacity:1}
.card .ic{font-family:'JetBrains Mono',monospace;font-size:11.5px;font-weight:700;color:var(--accent);letter-spacing:.14em;display:block;margin-bottom:12px}
.card h3{font-size:18.5px;font-weight:700;margin-bottom:10px;color:var(--text)}
.card p{color:var(--muted);font-size:14.5px}

/* 表格 */
.tblwrap{overflow-x:auto;border:1.5px solid var(--line);border-radius:16px;background:var(--panel)}
table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:620px}
th{background:var(--bg-soft);color:var(--accent);font-family:'JetBrains Mono',monospace;font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;padding:14px 18px;text-align:left;border-bottom:2px solid var(--line)}
td{padding:13px 18px;border-bottom:1px solid var(--line);color:var(--text)}
tr:last-child td{border-bottom:0}
tr:hover td{background:rgba(124,58,237,.04)}

/* FAQ */
.faq details{background:var(--panel);border:1.5px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden}
.faq summary{padding:17px 20px;font-weight:700;cursor:pointer;color:var(--text);list-style:none;transition:background .2s}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{background:var(--bg-soft)}
.faq details[open] summary{color:var(--accent);border-bottom:1px solid var(--line)}
.faq details p{padding:16px 20px;color:var(--muted);font-size:14.5px}

/* CTA */
.cta{background:linear-gradient(135deg,var(--accent3),var(--accent) 60%,var(--accent2));border-radius:24px;padding:56px 40px;text-align:center;color:var(--gold);margin:40px auto;max-width:1080px}
.cta h2{font-family:'Unbounded',sans-serif;font-weight:900;font-size:clamp(24px,3.4vw,40px);margin-bottom:14px;color:var(--gold)}
.cta p{color:rgba(255,209,102,.9);margin-bottom:28px;font-size:16.5px}
.cta .btn-ghost{border-color:var(--gold);color:var(--gold);margin-left:12px}
.cta .btn-ghost:hover{background:var(--gold);color:var(--accent3)}

/* page-head（服務頁 hero）*/
.page-head{padding:86px 0 54px;position:relative;overflow:hidden}
.page-head .wrap{position:relative;z-index:2}
.page-head .crumb{font-family:'JetBrains Mono',monospace;font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--accent);text-transform:uppercase}
.page-head h1{font-family:'Unbounded',sans-serif;font-weight:900;font-size:clamp(30px,4.6vw,56px);line-height:1.15;margin:16px 0 18px;color:var(--text)}
.page-head p{color:var(--muted);font-size:17px;max-width:680px}

/* clients 條 */
.clients{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0}
.clients .wrap{display:flex;flex-wrap:wrap;gap:10px 26px;align-items:center}
.clients span{font-family:'JetBrains Mono',monospace;font-size:12.5px;color:var(--muted)}
.clients b{color:var(--accent3);font-size:14px;font-weight:700}

/* gal 圖 */
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}
@media(max-width:760px){.gal{grid-template-columns:1fr}}
.gal .ph{border-radius:14px;overflow:hidden;border:1.5px solid var(--line)}
.gal .ph img{width:100%;display:block;aspect-ratio:4/3;object-fit:cover}

/* videowrap */
.videowrap{border:1.5px solid var(--line);background:var(--panel)}

/* ═══ FOOTER（白底）═══ */
footer{border-top:1px solid var(--line);padding:52px 0 28px;margin-top:60px;background:var(--bg-soft)}
.foot-cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.foot-brand{font-family:'Unbounded',sans-serif;font-weight:900;font-size:15px;margin-bottom:10px;color:var(--text)}
.foot-col p{color:var(--muted);font-size:13px;line-height:1.6;margin:0 0 8px}
.foot-lic{color:var(--accent)!important;font-weight:600}
.foot-h{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--accent);text-transform:uppercase;letter-spacing:.14em;margin-bottom:12px}
.foot-col a{display:block;color:var(--muted);text-decoration:none;font-size:14px;padding:5px 0;transition:color .2s}
.foot-col a:hover{color:var(--accent)}
.foot-base{display:flex;justify-content:space-between;border-top:1px solid var(--line);margin-top:32px;padding-top:20px;color:var(--muted);font-size:12.5px;flex-wrap:wrap;gap:8px}
@media(max-width:900px){.foot-cols{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.foot-cols{grid-template-columns:1fr}}

/* ═══ WhatsApp 浮掣 ═══ */
.wa-float{position:fixed;right:22px;bottom:22px;z-index:90;display:flex;align-items:center;gap:10px;
  background:#25D366;color:#fff;text-decoration:none;padding:12px 18px;border-radius:999px;
  box-shadow:0 6px 24px rgba(37,211,102,.35);transition:transform .2s ease,box-shadow .2s ease;
  font-size:14.5px;font-weight:600}
.wa-float:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(37,211,102,.5)}
.wa-float svg{width:22px;height:22px;fill:#fff;flex-shrink:0}
@media(max-width:640px){
  .wa-float{right:16px;bottom:16px;padding:12px}
  .wa-float .wa-txt{display:none}
}

/* ═══ reveal 淡入 ═══ */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js .reveal.in{opacity:1;transform:none}

/* ═══ HUD（index scrubbing — B 版配色）═══ */
.hero-hud{color:rgba(20,16,33,.7)!important}
.hero-hud #hud-num{color:var(--accent)!important}
.hero-hud b{background:var(--accent)!important}
.hero-hud span[style*="background"]{background:rgba(20,16,33,.12)!important}

/* ═══ form（contact）═══ */
.fld{margin-bottom:16px}
.fld label{display:block;font-size:13.5px;font-weight:700;margin-bottom:7px;color:var(--text)}
.fld input,.fld select,.fld textarea{width:100%;padding:13px 16px;border:1.5px solid var(--line);border-radius:12px;font-family:inherit;font-size:15px;background:#fff;color:var(--text);transition:border-color .2s,box-shadow .2s}
.fld input:focus,.fld select:focus,.fld textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(124,58,237,.12)}
.ok{display:none;background:rgba(163,230,53,.15);border:1.5px solid var(--lime);color:#3f6212;padding:14px 18px;border-radius:12px;margin-bottom:16px;font-size:14.5px}
.grid{display:grid;grid-template-columns:1.6fr 1fr;gap:26px;align-items:start}
.side .box{background:var(--panel);border:1.5px solid var(--line);border-radius:16px;padding:22px;margin-bottom:14px}
.side .box .ic{font-family:'JetBrains Mono',monospace;font-size:11.5px;font-weight:700;color:var(--accent);letter-spacing:.14em;display:block;margin-bottom:10px}
.side .box h3{font-size:16px;margin-bottom:8px}
.side .box p{color:var(--muted);font-size:14px}
@media(max-width:900px){.grid{grid-template-columns:1fr}}

/* index 服務線卡 */
.lines{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:980px){.lines{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.lines{grid-template-columns:1fr}}
.line-card{background:var(--panel);border:1.5px solid var(--line);border-radius:18px;padding:26px 22px;transition:transform .25s,box-shadow .25s}
.line-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(124,58,237,.15)}
.line-card .idx{font-family:'JetBrains Mono',monospace;font-size:11.5px;font-weight:700;color:var(--accent);letter-spacing:.14em}
.line-card h3{font-size:19px;margin:10px 0}
.line-card p{color:var(--muted);font-size:14.5px;margin-bottom:14px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tag{font-family:'JetBrains Mono',monospace;font-size:11.5px;font-weight:700;color:var(--accent3);background:var(--bg-soft);border:1px solid var(--line);padding:5px 11px;border-radius:999px}
.more{color:var(--accent);text-decoration:none;font-weight:700;font-size:14.5px}
.more:hover{text-decoration:underline}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:980px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.steps{grid-template-columns:1fr}}
.step{background:var(--panel);border:1.5px solid var(--line);border-radius:18px;padding:26px 22px}
.step .n{font-family:'Unbounded',sans-serif;font-weight:900;font-size:30px;color:var(--accent);opacity:.35;margin-bottom:10px}
.step h3{font-size:17px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}

/* brandgrid */
.brandgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
@media(max-width:980px){.brandgrid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.brandgrid{grid-template-columns:1fr}}
.brandcard{background:var(--panel);border:1.5px solid var(--line);border-radius:14px;padding:18px}
.brandcard b{color:var(--text);font-size:15.5px}
.brandcard small{display:block;color:var(--muted);font-size:13px;margin-top:5px}

/* AI band（index 新服務帶）*/
#ai-voice{background:linear-gradient(135deg,#f3effe,#fafafa 60%);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
#ai-voice h2{color:var(--text)}

/* timeline */
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--accent),var(--accent2))}
.tl{position:relative;margin-bottom:26px}
.tl::before{content:"";position:absolute;left:-24px;top:10px;width:10px;height:10px;border-radius:99px;background:var(--accent);box-shadow:0 0 0 4px rgba(124,58,237,.15)}
.tl .y{font-family:'JetBrains Mono',monospace;font-weight:700;color:var(--accent);font-size:13px;letter-spacing:.1em}
.tl h3{font-size:16.5px;margin:4px 0}
.tl p{color:var(--muted);font-size:14px}

/* values */
.values{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:26px}
@media(max-width:700px){.values{grid-template-columns:1fr}}
.val{background:var(--panel);border:1.5px solid var(--line);border-radius:16px;padding:22px}
.val h3{color:var(--accent3);font-size:16px;margin-bottom:8px}
.val p{color:var(--muted);font-size:14px}

/* prose（法務頁）*/
.prose{max-width:760px;margin:0 auto;color:var(--text)}
.prose h2{font-size:20px;margin:28px 0 12px;color:var(--accent3)}
.prose p,.prose li{color:var(--muted);font-size:15px;margin-bottom:10px}

/* hero 服務卡縮圖圓角 */
.line-card img{border-radius:12px}

/* ═══════════════════════════════════════════
   B2 升級：Tech Graphics 層
   1. 動態網格 + 浮動光球
   2. 漸變描邊字
   3. 卡片 3D tilt + 光掃過
   4. 數據流裝飾線
   5. 紫色噪點質感
   6. 標題動態 underline draw
═══════════════════════════════════════════ */

/* 1a. Hero 浮動光球（動畫）*/
.hero::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(340px 340px at 78% 22%, rgba(124,58,237,.22), transparent 68%),
    radial-gradient(260px 260px at 12% 78%, rgba(34,211,238,.18), transparent 66%),
    radial-gradient(200px 200px at 92% 84%, rgba(163,230,53,.14), transparent 62%);
  animation:orbFloat 14s ease-in-out infinite alternate}
@keyframes orbFloat{
  0%{transform:translate(0,0) scale(1)}
  50%{transform:translate(-24px,14px) scale(1.06)}
  100%{transform:translate(18px,-12px) scale(.97)}
}

/* 1b. 網格動態微光 */
.hero::before{animation:gridPulse 9s ease-in-out infinite alternate}
@keyframes gridPulse{
  0%{opacity:.38}
  100%{opacity:.72}
}

/* 2. 漸變描邊字（kicker 強化）*/
.kicker{position:relative;overflow:hidden}
.kicker::before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(124,58,237,.18),transparent);
  animation:kickShine 3.2s ease-in-out infinite}
@keyframes kickShine{0%{left:-100%}55%,100%{left:100%}}

/* 3a. 卡片光掃過效果 */
.card::after{content:"";position:absolute;top:-60%;left:-80%;width:60%;height:220%;
  background:linear-gradient(100deg,transparent,rgba(124,58,237,.10),rgba(34,211,238,.08),transparent);
  transform:rotate(18deg);transition:left .7s ease;pointer-events:none}
.card:hover::after{left:130%}

/* 3b. 卡片 3D 微傾（hover）*/
.card:hover{transform:translateY(-6px) rotateX(2deg) rotateY(-1.5deg);perspective:800px}

/* 4. 數據流裝飾線（section 邊緣）*/
.sec{position:relative}
.sec::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:min(880px,86%);height:1px;pointer-events:none;
  background:linear-gradient(90deg,transparent,var(--accent2) 30%,var(--accent) 50%,var(--accent2) 70%,transparent);
  opacity:.35}
.sec.alt::before{opacity:.22}

/* 5. 全站紫噪點質感（好輕）*/
body::after{content:"";position:fixed;inset:0;z-index:9999;pointer-events:none;opacity:.028;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E")}

/* 6. 標題 underline draw 動畫（hover 觸發）*/
.sec-head h2{position:relative;display:inline-block}
.sec-head h2::after{content:"";position:absolute;left:0;bottom:-6px;height:3px;width:0;
  background:linear-gradient(90deg,var(--accent),var(--neon));border-radius:99px;
  transition:width .6s var(--ease)}
.sec:hover .sec-head h2::after{width:64px}

/* 7. 數字 counter 用 Unbounded + 漸變 */
.stat b{background:linear-gradient(120deg,var(--accent3),var(--accent) 55%,var(--neon));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  font-size:38px}

/* 8. 跑馬燈升級：雙向 + 漸變字 */
.marquee{transform:rotate(-1.4deg) scale(1.02);background:linear-gradient(90deg,var(--accent3),var(--accent),var(--accent2))}
.marquee-track span,.marquee-track{font-size:15px}
.marquee-track b{color:rgba(255,255,255,.55);padding:0 6px}

/* 9. 按鈕升級：磁吸漸變 */
.btn-primary{color:var(--gold);background:linear-gradient(120deg,var(--accent3),var(--accent) 55%,var(--accent2));
  background-size:180% 100%;transition:background-position .5s,transform .2s,box-shadow .2s}
.btn-primary:hover{background-position:100% 0;box-shadow:0 14px 40px rgba(124,58,237,.45)}

/* 10. AI band 升級：動態波形背景 */
#ai-voice{position:relative;overflow:hidden}
#ai-voice::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background:repeating-linear-gradient(90deg,transparent 0 38px,rgba(124,58,237,.05) 38px 39px)}
#ai-voice::after{content:"";position:absolute;bottom:-40px;left:-5%;width:110%;height:140px;pointer-events:none;
  background:radial-gradient(60% 100% at 50% 100%,rgba(124,58,237,.16),transparent 70%)}

/* 11. services 線卡：號碼漸變大字 */
.line-card .idx{font-size:13px}
.line-card::after{content:"";position:absolute;right:-22px;top:-22px;width:110px;height:110px;border-radius:99px;
  background:radial-gradient(circle,rgba(124,58,237,.12),transparent 70%);pointer-events:none}

/* 12. brandcard hover 邊框漸變 */
.brandcard{position:relative;transition:transform .22s,border-color .22s}
.brandcard::before{content:"";position:absolute;inset:-1.5px;border-radius:15px;padding:1.5px;
  background:linear-gradient(120deg,var(--accent),var(--neon));
  -webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  opacity:0;transition:opacity .22s;pointer-events:none}
.brandcard:hover{transform:translateY(-3px)}
.brandcard:hover::before{opacity:1}

/* 13. FAQ 開合指示動畫 */
.faq summary{position:relative;padding-right:44px}
.faq summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  font-family:'Unbounded',sans-serif;font-size:20px;color:var(--accent);transition:transform .3s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}

/* 14. timeline 動畫（about）*/
.tl::before{animation:pulseDot 2.4s ease-in-out infinite}
@keyframes pulseDot{
  0%,100%{box-shadow:0 0 0 4px rgba(124,58,237,.15)}
  50%{box-shadow:0 0 0 8px rgba(124,58,237,.06)}
}

/* 15. videowrap 邊框呼吸 */
.videowrap::before{content:"";position:absolute;inset:-1.5px;border-radius:17px;padding:1.5px;z-index:1;
  background:linear-gradient(120deg,var(--accent),var(--neon),var(--lime),var(--accent));
  background-size:300% 300%;animation:borderFlow 6s linear infinite;
  -webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
@keyframes borderFlow{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}

/* 16. 404 頁彩蛋 */
.code{animation:floatY 3s ease-in-out infinite}

/* 17. Scroll progress bar（頁頂）*/
.scroll-progress{position:fixed;top:0;left:0;height:3px;width:100%;z-index:200;pointer-events:none;
  background:linear-gradient(90deg,var(--accent),var(--neon),var(--lime));
  transform-origin:left;transform:scaleX(0)}

/* reduced motion */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* anchor sticky nav 補償 */
[id]{scroll-margin-top:90px}

/* ═══════════════════════════════
   B3 Scroll Journey
   1) 主題隨捲動變身（dawn → violet → night）
   2) vibe 視差剪紙層
   3) 滑鼠光暈
   ═══════════════════════════════ */
body{transition:background-color .9s ease,color .9s ease}
.card,.faq details,.stat,.line-card,.step,.brandcard,.tblwrap,.side .box,footer,.clients,.nav-links,.marquee{transition:background-color .9s ease,border-color .9s ease,color .9s ease}

/* ── Act 2: violet（服務區）── */
body[data-theme="violet"]{--bg:#ede7fd;--bg-soft:#e3d9fc;--line:#d4c6f7}
body[data-theme="violet"] .hero::before{opacity:.55}

/* ── Act 3: night（CTA/聯絡區 — 全頁翻轉）── */
body[data-theme="night"]{--bg:#141021;--bg-soft:#1c1733;--panel:#201a3a;--line:#332b5c;
  --text:#efeaff;--muted:#a89ede;--accent:#a78bfa;--accent2:#22d3ee;--accent3:#c4b5fd}
body[data-theme="night"] .card::before{opacity:1}
body[data-theme="night"] .wa-float{box-shadow:0 6px 30px rgba(37,211,102,.5)}
body[data-theme="night"] .hero::before,body[data-theme="night"] .hero::after{opacity:.5}

/* ── Vibe 視差剪紙層 ── */
.vibe-layer{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.vibe{position:absolute;color:var(--accent);opacity:.10;will-change:transform}
body[data-theme="night"] .vibe{opacity:.22;color:var(--accent2)}
.vibe svg{display:block}
.vibe svg path,.vibe svg circle,.vibe svg rect{vector-effect:non-scaling-stroke}
/* 內容抬升過 vibe 層 */
body>.wrap,section,header,footer,.marquee,.clients{position:relative;z-index:1}

/* ── 滑鼠光暈 ── */
.glow-cursor{position:fixed;width:420px;height:420px;border-radius:50%;pointer-events:none;z-index:0;
  background:radial-gradient(circle,rgba(124,58,237,.10),rgba(34,211,238,.05) 45%,transparent 70%);
  transform:translate(-50%,-50%);opacity:0;transition:opacity .6s}
body[data-theme="night"] .glow-cursor{background:radial-gradient(circle,rgba(167,139,250,.14),rgba(34,211,238,.06) 45%,transparent 70%)}
@media(pointer:coarse){.glow-cursor{display:none}}

/* ── Hero 浮動 chip ── */
.chip-float{position:absolute;display:inline-flex;align-items:center;gap:7px;
  font-family:'JetBrains Mono',monospace;font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--accent3);background:#fff;border:1.5px solid var(--line);border-radius:999px;
  padding:8px 14px;box-shadow:0 8px 24px rgba(124,58,237,.12);
  animation:chipFloat 6s ease-in-out infinite;z-index:3}
.chip-float .cdot{width:7px;height:7px;border-radius:99px;background:var(--neon);box-shadow:0 0 8px var(--neon)}
.chip-float:nth-child(2){animation-delay:-2s}
.chip-float:nth-child(3){animation-delay:-4s}
@keyframes chipFloat{0%,100%{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-14px) rotate(2deg)}}
@media(max-width:900px){.chip-float{display:none}}

/* scroll progress 用主題色 */
.scroll-progress{transition:background .9s}
body[data-theme="night"] .brand img.logo-white{filter:none}  /* 夜間用返白 logo */

/* ═══ Parallax Band（捲動視差背景 + 白色大字）═══ */
.parallax-band{position:relative;overflow:hidden;background:linear-gradient(115deg,#1a1030 0%,#241647 55%,#3b1d6e 100%);min-height:380px;display:flex;align-items:center;margin:52px 0;border-radius:22px;max-width:1180px;margin-left:auto;margin-right:auto;box-shadow:0 20px 60px rgba(124,58,237,.25)}
.parallax-band .pb-bg{position:absolute;inset:-12% 0;background-size:cover;background-position:center right;will-change:transform;z-index:0;opacity:.5;mix-blend-mode:luminosity}
.parallax-band .pb-tint{position:absolute;inset:0;background:linear-gradient(100deg,rgba(26,16,48,.92) 0%,rgba(36,22,71,.62) 50%,rgba(124,58,237,.18) 100%);z-index:1}
.parallax-band .wrap{position:relative;z-index:2;width:100%}
.parallax-band .pb-big{font-family:'Unbounded',sans-serif;font-weight:900;font-size:clamp(24px,3.4vw,42px);line-height:1.22;color:#fff;letter-spacing:-.01em;margin-bottom:14px;text-shadow:0 3px 22px rgba(0,0,0,.5)}
.parallax-band .pb-big em{font-style:normal;color:var(--gold);background:linear-gradient(90deg,transparent,rgba(255,209,102,.16));padding:0 8px;border-radius:6px}
.parallax-band .pb-sub{color:rgba(255,255,255,.78);font-size:15.5px;max-width:520px;text-shadow:0 2px 10px rgba(0,0,0,.5)}
.parallax-band .pb-line{font-family:'JetBrains Mono',monospace;font-size:12.5px;font-weight:700;color:var(--gold);letter-spacing:.18em;text-transform:uppercase;display:block;margin-bottom:16px}
@media(max-width:700px){.parallax-band{min-height:330px;border-radius:16px;margin:36px 12px}}

/* ═══ 虛擬電話 AI Demo ═══ */
.phone-demo{max-width:380px;margin:30px auto 0;background:#141021;border-radius:38px;padding:18px 14px 22px;
  box-shadow:0 24px 70px rgba(124,58,237,.35),inset 0 0 0 2px rgba(255,255,255,.06);position:relative}
.phone-demo .pd-notch{width:90px;height:22px;background:#000;border-radius:99px;margin:0 auto 12px}
.phone-demo .pd-screen{background:linear-gradient(170deg,#1c1440,#0e0a20);border-radius:24px;padding:20px 16px;min-height:420px;display:flex;flex-direction:column}
.pd-header{text-align:center;padding-bottom:14px;border-bottom:1px solid rgba(167,139,250,.2)}
.pd-avatar{width:64px;height:64px;border-radius:99px;margin:0 auto 10px;background:linear-gradient(135deg,var(--accent),var(--accent2));
  display:flex;align-items:center;justify-content:center;font-size:30px;animation:pdBreath 3s ease-in-out infinite}
.pd-avatar.talking{animation:pdTalk .9s ease-in-out infinite}
@keyframes pdBreath{0%,100%{box-shadow:0 0 0 0 rgba(124,58,237,.4)}50%{box-shadow:0 0 0 14px rgba(124,58,237,.08)}}
@keyframes pdTalk{0%,100%{border-radius:99px}50%{border-radius:44% 56% 55% 45%/48% 42% 58% 52%}}
.pd-name{color:#fff;font-weight:700;font-size:16px}
.pd-status{font-family:'JetBrains Mono',monospace;font-size:11px;color:#a3e635;letter-spacing:.1em;margin-top:4px}
.pd-status.connecting{color:#ffd166}
.pd-chat{flex:1;overflow-y:auto;padding:16px 2px;display:flex;flex-direction:column;gap:10px;scroll-behavior:smooth}
.pd-chat::-webkit-scrollbar{width:4px}
.pd-chat::-webkit-scrollbar-thumb{background:rgba(167,139,250,.3);border-radius:99px}
.bub{max-width:85%;padding:10px 14px;border-radius:16px;font-size:13.5px;line-height:1.55}
.bub.ai{background:rgba(124,58,237,.25);color:#e9e2ff;border-bottom-left-radius:4px;align-self:flex-start}
.bub.user{background:var(--gold);color:#141021;border-bottom-right-radius:4px;align-self:flex-end}
.bub.typing{display:flex;gap:5px;padding:14px 16px}
.bub.typing i{width:7px;height:7px;border-radius:99px;background:#a78bfa;animation:tb 1.2s ease-in-out infinite}
.bub.typing i:nth-child(2){animation-delay:.15s}
.bub.typing i:nth-child(3){animation-delay:.3s}
@keyframes tb{0%,100%{transform:translateY(0);opacity:.5}50%{transform:translateY(-5px);opacity:1}}
.pd-quick{display:flex;flex-wrap:wrap;gap:6px;padding:10px 0}
.pd-quick button{background:rgba(167,139,250,.15);border:1px solid rgba(167,139,250,.4);color:#cdbdff;
  font-size:11.5px;padding:6px 11px;border-radius:99px;cursor:pointer;font-family:inherit;transition:background .2s}
.pd-quick button:hover{background:rgba(167,139,250,.35)}
.pd-inputrow{display:flex;gap:8px;padding-top:12px;border-top:1px solid rgba(167,139,250,.2)}
.pd-inputrow input{flex:1;background:rgba(255,255,255,.07);border:1px solid rgba(167,139,250,.3);border-radius:99px;
  padding:11px 16px;color:#fff;font-family:inherit;font-size:13.5px;outline:none}
.pd-inputrow input:focus{border-color:var(--accent2)}
.pd-inputrow input::placeholder{color:#8a7fb8}
.pd-send{width:44px;height:44px;border-radius:99px;border:0;background:linear-gradient(135deg,var(--accent),var(--neon));
  color:#fff;font-size:17px;cursor:pointer;flex-shrink:0;transition:transform .2s}
.pd-send:hover{transform:scale(1.08)}
.pd-send:disabled{opacity:.5;cursor:wait}
.pd-note{text-align:center;color:#8a7fb8;font-size:11px;margin-top:12px;font-family:'JetBrains Mono',monospace}

/* 手機 menu 背景暗化 */
.nav-backdrop{position:fixed;inset:0;background:rgba(20,16,33,.45);z-index:9998;opacity:0;pointer-events:none;transition:opacity .28s}
.nav-backdrop.show{opacity:1;pointer-events:auto}
@media(max-width:1080px){
  .nav-links.open ~ .nav-backdrop, .nav-backdrop.show{opacity:1;pointer-events:auto}
}

/* ═══ Interactive Avatar（小紫 face）═══ */
.pd-avatar{position:relative;overflow:visible}
.pd-face{width:100%;height:100%}
.pd-face svg{width:100%;height:100%;display:block}
.pd-face .eye{animation:blink 4.2s infinite}
@keyframes blink{0%,94%,100%{transform:scaleY(1)}96%,98%{transform:scaleY(.08)}}
.pd-face .mouth{transition:all .15s;transform-origin:center}
.pd-avatar.talking .mouth{animation:mouthTalk .32s ease-in-out infinite}
@keyframes mouthTalk{0%,100%{transform:scaleY(.5)}50%{transform:scaleY(1.6)}}
.pd-avatar.talking .wave{animation:wv 1s linear infinite;transform-origin:60px 62px}
@keyframes wv{0%,100%{transform:rotate(-6deg)}50%{transform:rotate(10deg)}}
.pd-face .pupil{transition:transform .18s ease-out}