/* ═══════════════ Qentor 品牌官網樣式 ═══════════════ */
:root{
  --bg:#0d0820;          /* 深空紫黑 */
  --bg-alt:#160f2e;
  --panel:rgba(255,255,255,.04);
  --line:rgba(184,150,255,.14);
  --txt:#f1ecfb;
  --txt-dim:#a99ec6;
  --blue:#7c3aed;
  --cyan:#d946ef;
  --grad:linear-gradient(100deg,var(--blue),var(--cyan));
  --radius:18px;
  --font:"Noto Sans TC",system-ui,-apple-system,"PingFang TC","Microsoft JhengHei",sans-serif;
  --mono:"Orbitron","Noto Sans TC",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);font-family:var(--font);line-height:1.75;overflow-x:hidden}
::selection{background:rgba(217,70,239,.35)}
img,svg{max-width:100%}
a{color:inherit;text-decoration:none}

.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ─── 導覽列 ─── */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .35s,box-shadow .35s,backdrop-filter .35s}
.nav.scrolled{background:rgba(13,8,32,.82);backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--line)}
.nav-inner{max-width:1180px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:44px;height:44px;object-fit:contain;filter:drop-shadow(0 0 10px rgba(217,70,239,.45))}
.hero-logo{display:block;width:clamp(96px,14vw,150px);height:auto;margin:0 auto 22px;filter:drop-shadow(0 0 34px rgba(217,70,239,.55))}
.brand-text{font-weight:900;font-size:1.25rem;letter-spacing:.08em;display:flex;flex-direction:column;line-height:1.15}
.brand-text small{font-family:var(--mono);font-size:.58rem;font-weight:500;letter-spacing:.42em;color:var(--txt-dim)}
.nav-links{display:flex;align-items:center;gap:30px;font-weight:500}
.nav-links a{position:relative;padding:4px 0;color:var(--txt-dim);transition:color .25s}
.nav-links a:hover{color:var(--txt)}
.nav-links a:not(.nav-cta)::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--grad);border-radius:2px;transition:width .3s}
.nav-links a:not(.nav-cta):hover::after{width:100%}
.nav-cta{background:var(--grad);color:#fff!important;padding:9px 22px!important;border-radius:99px;font-weight:700;box-shadow:0 4px 18px rgba(124,58,237,.4);transition:transform .25s,box-shadow .25s}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(124,58,237,.55)}
.nav-burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-burger span{display:block;width:24px;height:2px;background:var(--txt);margin:5px 0;border-radius:2px;transition:.3s}

/* ─── Hero ─── */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;padding:120px 24px 80px}
#net{position:absolute;inset:0;width:100%;height:100%}
.hero-glow{position:absolute;border-radius:50%;filter:blur(110px);opacity:.5;pointer-events:none;animation:drift 14s ease-in-out infinite alternate}
.g1{width:480px;height:480px;background:rgba(124,58,237,.35);top:-120px;left:-120px}
.g2{width:520px;height:520px;background:rgba(217,70,239,.22);bottom:-160px;right:-140px;animation-delay:-7s}
@keyframes drift{from{transform:translate(0,0) scale(1)}to{transform:translate(60px,40px) scale(1.15)}}
.hero-inner{position:relative;z-index:2;max-width:900px}
.hero-badge{display:inline-block;font-family:var(--mono);font-size:.78rem;letter-spacing:.5em;color:var(--cyan);border:1px solid var(--line);border-radius:99px;padding:9px 26px 9px 30px;margin-bottom:30px;background:rgba(217,70,239,.06)}
.hero h1{font-size:clamp(2.5rem,6.5vw,4.6rem);font-weight:900;line-height:1.22;letter-spacing:.02em}
.hero-brand{font-family:var(--mono);font-size:clamp(3rem,9vw,5.8rem)!important;font-weight:700!important;letter-spacing:.05em!important;text-shadow:0 0 60px rgba(124,58,237,.5)}
.hero-tagline{margin-top:20px;font-size:clamp(1.15rem,2.6vw,1.65rem);font-weight:700;letter-spacing:.16em}
.hero-sub{margin:26px auto 0;color:var(--txt-dim);font-size:clamp(1rem,1.6vw,1.18rem);max-width:720px}
.hero-cta{margin-top:40px;display:flex;gap:18px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:14px 36px;border-radius:99px;font-weight:700;font-size:1.02rem;transition:transform .25s,box-shadow .25s,background .25s}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 6px 24px rgba(124,58,237,.45)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 12px 34px rgba(124,58,237,.6)}
.btn-ghost{border:1px solid rgba(184,150,255,.4);color:var(--txt)}
.btn-ghost:hover{background:rgba(217,70,239,.1);transform:translateY(-3px)}
.btn-lg{padding:17px 52px;font-size:1.12rem}
.hero-stats{margin-top:70px;display:flex;justify-content:center;gap:clamp(24px,5vw,64px);flex-wrap:wrap}
.stat{display:flex;flex-direction:column;align-items:center}
.stat b{font-family:var(--mono);font-size:clamp(1.9rem,3.5vw,2.6rem);font-weight:700;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat b i{font-style:normal;font-size:.6em}
.stat span{color:var(--txt-dim);font-size:.88rem;margin-top:4px;letter-spacing:.06em}
.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);width:26px;height:42px;border:2px solid rgba(184,150,255,.4);border-radius:14px;z-index:2}
.scroll-hint span{position:absolute;left:50%;top:7px;width:4px;height:9px;margin-left:-2px;border-radius:3px;background:var(--cyan);animation:wheel 1.8s ease-in-out infinite}
@keyframes wheel{0%{opacity:0;transform:translateY(0)}35%{opacity:1}100%{opacity:0;transform:translateY(14px)}}

/* ─── 區塊共通 ─── */
.section{padding:110px 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{text-align:center;margin-bottom:64px}
.sec-tag{font-family:var(--mono);font-size:.75rem;letter-spacing:.5em;color:var(--cyan)}
.sec-head h2{font-size:clamp(1.9rem,4vw,2.8rem);font-weight:900;margin-top:12px;letter-spacing:.04em}
.sec-sub{color:var(--txt-dim);margin-top:14px}

/* ─── 關於 ─── */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}
.about-text .lead{font-size:1.16rem;font-weight:500;margin-bottom:20px}
.about-text p{margin-bottom:18px;color:var(--txt-dim)}
.about-text strong{color:var(--txt)}
.about-text em{color:var(--cyan);font-style:normal;font-weight:700}
.about-cards{display:flex;flex-direction:column;gap:18px}
.mini-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;transition:transform .3s,border-color .3s,box-shadow .3s}
.mini-card:hover{transform:translateY(-4px);border-color:rgba(217,70,239,.45);box-shadow:0 14px 34px rgba(0,0,0,.35)}
.mini-ico{font-size:1.7rem;margin-bottom:8px}
.mini-card h3{font-size:1.08rem;margin-bottom:6px}
.mini-card p{color:var(--txt-dim);font-size:.94rem}

/* ─── AI 卡片 ─── */
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.ai-card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:32px 30px;display:flex;flex-direction:column;overflow:hidden;transition:transform .35s,border-color .35s,box-shadow .35s}
.ai-card::before{content:"";position:absolute;inset:0;background:radial-gradient(400px circle at var(--mx,50%) var(--my,50%),rgba(217,70,239,.1),transparent 45%);opacity:0;transition:opacity .35s;pointer-events:none}
.ai-card:hover{transform:translateY(-6px);border-color:rgba(217,70,239,.5);box-shadow:0 18px 46px rgba(0,0,0,.42)}
.ai-card:hover::before{opacity:1}
.ai-ico{width:60px;height:60px;border-radius:16px;background:rgba(217,70,239,.1);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--cyan);margin-bottom:20px}
.ai-ico svg{width:34px;height:34px}
.ai-card h3{font-size:1.18rem;margin-bottom:10px;letter-spacing:.02em}
.ai-card p{color:var(--txt-dim);font-size:.94rem;flex:1}
.ai-tags{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 14px}
.ai-tags li{font-size:.74rem;padding:4px 12px;border-radius:99px;background:rgba(124,58,237,.16);border:1px solid rgba(217,70,239,.25);color:#e6c6ff;letter-spacing:.04em}
.ai-link{font-weight:700;color:var(--cyan);font-size:.95rem;transition:letter-spacing .25s}
.ai-link:hover{letter-spacing:.12em}
.ai-card-cta{justify-content:center;text-align:center;background:linear-gradient(160deg,rgba(124,58,237,.2),rgba(217,70,239,.06));border-color:rgba(217,70,239,.35)}
.ai-card-cta h3{font-size:1.3rem}
.ai-card-cta p{flex:0;margin-bottom:24px}
.ai-card-cta .btn{align-self:center}

/* ─── 產品卡片 ─── */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.prod-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:34px 30px;transition:transform .35s,border-color .35s,box-shadow .35s}
.prod-card:hover{transform:translateY(-6px);border-color:rgba(217,70,239,.5);box-shadow:0 18px 46px rgba(0,0,0,.42)}
.prod-card svg{width:44px;height:44px;color:var(--cyan);margin-bottom:18px;filter:drop-shadow(0 0 8px rgba(217,70,239,.35))}
.prod-card h3{font-size:1.14rem;margin-bottom:10px}
.prod-card p{color:var(--txt-dim);font-size:.93rem}

/* ─── 導入前後對照 ─── */
.cmp{margin-top:90px}
.cmp-head{text-align:center;margin-bottom:34px}
.cmp-head h3{font-size:clamp(1.4rem,2.8vw,1.9rem);font-weight:900}
.cmp-toggle{display:flex;justify-content:center;gap:0;margin-bottom:36px}
.cmp-btn{border:1px solid var(--line);background:var(--panel);color:var(--txt-dim);padding:11px 30px;font-family:var(--font);font-size:.98rem;font-weight:700;cursor:pointer;transition:all .25s}
.cmp-btn:first-child{border-radius:99px 0 0 99px}
.cmp-btn:last-child{border-radius:0 99px 99px 0;border-left:0}
.cmp-btn.on[data-mode="before"]{background:rgba(255,110,110,.14);border-color:rgba(255,110,110,.45);color:#ffb3b3}
.cmp-btn.on[data-mode="after"]{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 4px 18px rgba(124,58,237,.4)}
.cmp-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.cmp-row{display:grid;grid-template-columns:250px 1fr;gap:0;background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:border-color .3s}
.cmp-scene{padding:18px 22px;font-weight:700;font-size:.95rem;background:rgba(255,255,255,.03);border-right:1px solid var(--line);display:flex;align-items:center}
.cmp-ans{position:relative;padding:18px 22px;font-size:.93rem;display:flex;align-items:center}
.cmp-ans p{margin:0;animation:cmpfade .4s ease}
@keyframes cmpfade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.cmp-list[data-mode="before"] .c-after{display:none}
.cmp-list[data-mode="after"] .c-before{display:none}
.cmp-list[data-mode="before"] .c-before{color:#e8a0a0}
.cmp-list[data-mode="after"] .c-after{color:#9fd8ff}
.cmp-list[data-mode="before"] .cmp-row{border-color:rgba(255,110,110,.22)}
.cmp-list[data-mode="after"] .cmp-row{border-color:rgba(217,70,239,.3)}

/* ─── 實績影片 ─── */
.video-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.video-card{position:relative;display:block;width:100%;padding:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#000;cursor:pointer;aspect-ratio:16/9;transition:transform .3s,border-color .3s,box-shadow .3s}
.video-card:hover{transform:translateY(-5px);border-color:rgba(217,70,239,.5);box-shadow:0 18px 46px rgba(0,0,0,.45)}
.video-card img{width:100%;height:100%;object-fit:cover;opacity:.82;transition:opacity .3s,transform .5s}
.video-card:hover img{opacity:1;transform:scale(1.04)}
.vc-play{position:absolute;top:50%;left:50%;width:70px;height:70px;margin:-35px 0 0 -35px;border-radius:50%;background:rgba(13,8,32,.72);border:2px solid rgba(184,150,255,.55);backdrop-filter:blur(4px);transition:background .3s,transform .3s}
.vc-play::after{content:"";position:absolute;top:50%;left:50%;transform:translate(-38%,-50%);border-style:solid;border-width:13px 0 13px 22px;border-color:transparent transparent transparent var(--cyan)}
.video-card:hover .vc-play{background:rgba(124,58,237,.5);transform:scale(1.1)}
.vc-title{position:absolute;left:0;right:0;bottom:0;padding:34px 18px 14px;text-align:left;font-family:var(--font);font-size:.95rem;font-weight:700;color:var(--txt);background:linear-gradient(transparent,rgba(4,8,18,.92))}
.video-card iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* ─── 合作實績列 ─── */
.trust{margin-top:56px;display:flex;align-items:center;justify-content:center;gap:22px;flex-wrap:wrap}
.trust-label{font-family:var(--mono);font-size:.72rem;letter-spacing:.4em;color:var(--cyan);flex:none}
.trust ul{list-style:none;display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.trust li{font-size:.92rem;font-weight:500;color:var(--txt-dim);padding:8px 20px;border:1px solid var(--line);border-radius:99px;background:var(--panel);transition:color .25s,border-color .25s}
.trust li:hover{color:var(--txt);border-color:rgba(217,70,239,.45)}

/* ─── 時間軸 ─── */
.timeline{position:relative;max-width:760px;margin:0 auto;padding-left:36px}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--blue),var(--cyan));border-radius:2px;opacity:.5}
.tl-item{position:relative;padding-bottom:46px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{position:absolute;left:-36px;top:6px;width:20px;height:20px;border-radius:50%;background:var(--bg);border:3px solid var(--cyan);box-shadow:0 0 14px rgba(217,70,239,.7)}
.tl-era{font-family:var(--mono);font-size:.8rem;letter-spacing:.3em;color:var(--cyan)}
.tl-body h3{font-size:1.2rem;margin:6px 0 8px}
.tl-body p{color:var(--txt-dim);font-size:.95rem}

/* ─── 聯絡 ─── */
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.contact-grid.single{grid-template-columns:min(460px,100%);justify-content:center}
.contact-card{display:flex;flex-direction:column;align-items:center;text-align:center;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:34px 20px;transition:transform .3s,border-color .3s}
.contact-card:hover{transform:translateY(-5px);border-color:rgba(217,70,239,.5)}
.contact-card svg{width:38px;height:38px;color:var(--cyan);margin-bottom:14px}
.contact-card h3{font-size:1rem;color:var(--txt-dim);font-weight:500;margin-bottom:4px}
.contact-card p{font-weight:700;font-size:1.02rem;word-break:break-all}
.contact-cta{text-align:center;margin-top:48px}

/* ─── Footer ─── */
.footer{border-top:1px solid var(--line);background:#0a0518;padding:52px 0 0}
.footer-inner{display:flex;justify-content:space-between;align-items:flex-start;gap:32px;flex-wrap:wrap;padding-bottom:36px}
.footer-brand p{color:var(--txt-dim);font-size:.88rem;margin-top:10px}
.footer-links{display:flex;gap:26px;flex-wrap:wrap}
.footer-links a{color:var(--txt-dim);font-size:.92rem;transition:color .25s}
.footer-links a:hover{color:var(--cyan)}
.footer-copy{text-align:center;color:#7a6c9c;font-size:.82rem;padding:20px 24px;border-top:1px solid rgba(184,150,255,.08)}

/* ─── 進場動畫 ─── */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.7,.3,1),transform .8s cubic-bezier(.2,.7,.3,1)}
.reveal.on{opacity:1;transform:none}
.d1{transition-delay:.12s}.d2{transition-delay:.24s}.d3{transition-delay:.36s}.d4{transition-delay:.48s}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero-glow,.scroll-hint span{animation:none}
}

/* ─── RWD ─── */
.br-m{display:none}
@media (max-width:1024px){
  .ai-grid,.prod-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr;gap:36px}
}
@media (max-width:640px){
  .section{padding:80px 0}
  .ai-grid,.prod-grid,.contact-grid{grid-template-columns:1fr}
  .br-m{display:block}
  .br-d{display:none}
  .hero-badge{letter-spacing:.28em;font-size:.68rem}
  .nav-links{position:fixed;top:0;right:-290px;width:270px;height:100vh;background:rgba(13,8,32,.97);backdrop-filter:blur(16px);flex-direction:column;justify-content:center;gap:34px;transition:right .35s;box-shadow:-10px 0 40px rgba(0,0,0,.5)}
  .nav-links.open{right:0}
  .nav-burger{display:block;z-index:110}
  .nav-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-burger.open span:nth-child(2){opacity:0}
  .nav-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}

/* ═══════════════ 編輯雜誌風升級 ═══════════════ */
/* 左對齊標題 + 幽靈大字 + 前導線 */
.sec-head{text-align:left;position:relative;overflow:visible}
.sec-head[data-ghost]::before{content:attr(data-ghost);position:absolute;left:-6px;top:-.62em;z-index:0;
  font-family:var(--mono);font-weight:700;font-size:clamp(3.6rem,10vw,8rem);line-height:.9;letter-spacing:-.03em;
  color:rgba(184,150,255,.055);white-space:nowrap;pointer-events:none}
.sec-head .sec-tag{position:relative;z-index:1;display:inline-flex;align-items:center;gap:12px}
.sec-head[data-ghost] .sec-tag::before{content:"";width:36px;height:2px;background:var(--grad);border-radius:2px}
.sec-head h2{position:relative;z-index:1;font-size:clamp(2rem,4.6vw,3.35rem);letter-spacing:-.01em}
.sec-head .sec-sub{position:relative;z-index:1;max-width:54ch}
/* 對照區維持置中，製造節奏變化 */
.cmp-head{text-align:center}

/* 大型引言 */
.pull{position:relative;margin-top:26px;padding-left:26px;font-size:clamp(1.35rem,2.7vw,1.95rem);
  font-weight:800;line-height:1.42;letter-spacing:.01em}
.pull::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;border-radius:3px;background:var(--grad)}
.pull span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* 關鍵字跑馬燈 */
.marquee{overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,rgba(124,58,237,.06),rgba(217,70,239,.03));padding:22px 0;position:relative}
.marquee-track{display:inline-flex;align-items:center;gap:28px;white-space:nowrap;animation:marq 38s linear infinite;will-change:transform}
.marquee-track span{font-family:var(--mono);font-weight:700;font-size:clamp(1.05rem,2.3vw,1.7rem);letter-spacing:.05em;
  color:transparent;-webkit-text-stroke:1px rgba(200,170,255,.45);text-stroke:1px rgba(200,170,255,.45)}
.marquee-track em{color:var(--cyan);font-style:normal;font-size:.72rem;opacity:.7}
@keyframes marq{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.marquee:hover .marquee-track{animation-play-state:paused}

/* 非對稱 bento：首張放大 + CTA 橫幅 */
.ai-card:first-child{grid-column:span 2;
  background:linear-gradient(155deg,rgba(124,58,237,.18),rgba(217,70,239,.04));border-color:rgba(217,70,239,.32)}
.ai-card:first-child h3{font-size:1.5rem}
.ai-card:first-child > p{font-size:1.02rem;max-width:46ch}
.ai-card-cta{grid-column:span 3;flex-direction:row;align-items:center;justify-content:space-between;gap:36px;text-align:left}
.ai-card-cta .cta-txt{flex:1}
.ai-card-cta h3{font-size:1.5rem;margin-bottom:8px}
.ai-card-cta .btn{flex:none;white-space:nowrap}

@media (max-width:1024px){
  .ai-card:first-child{grid-column:span 2}
  .ai-card-cta{grid-column:span 2;flex-direction:column;text-align:center;align-items:stretch}
}
@media (max-width:640px){
  .ai-card:first-child,.ai-card-cta{grid-column:span 1}
  .sec-head[data-ghost]::before{font-size:clamp(3rem,16vw,4.5rem)}
  .marquee-track{animation-duration:24s}
}
@media (prefers-reduced-motion:reduce){.marquee-track{animation:none;transform:translateX(0)}}

/* ═══════════════ 編輯風 v2：非對稱 + 雜誌清單 ═══════════════ */
/* Hero 左右非對稱 */
.hero-inner{max-width:1180px;width:100%;margin:0 auto;padding:0 24px;
  display:grid;grid-template-columns:1.12fr .88fr;align-items:center;gap:30px;text-align:left}
.hero-text{position:relative;z-index:1}
.hero-logo{width:100%;max-width:440px;height:auto;margin:0;justify-self:center;
  filter:drop-shadow(0 0 70px rgba(217,70,239,.55))}
.hero-badge{margin-bottom:22px}
.hero-brand{font-size:clamp(3.2rem,11vw,7.2rem)!important;line-height:1}
.hero-tagline{margin-top:16px}
.hero-sub{margin:24px 0 0;max-width:560px}
.hero-cta{justify-content:flex-start}
.hero-stats{justify-content:flex-start;gap:clamp(22px,4vw,52px);margin-top:52px}
.stat{align-items:flex-start}
@media (max-width:860px){
  .hero-inner{grid-template-columns:1fr;text-align:center;gap:6px}
  .hero-logo{order:-1;max-width:150px;margin:0 auto 8px}
  .hero-sub{margin-left:auto;margin-right:auto}
  .hero-cta,.hero-stats{justify-content:center}
  .stat{align-items:center}
}

/* 幽靈大字加大加膽 */
.sec-head[data-ghost]::before{font-size:clamp(4.5rem,14vw,11rem);left:-10px;top:-.5em;color:rgba(184,150,255,.06)}
.sec-head h2{font-size:clamp(2.2rem,5.5vw,4rem)}

/* 跑馬燈：傾斜全出血 */
.marquee{transform:rotate(-2.2deg) scale(1.05);margin:34px 0}

/* AI 平台：雜誌式編號清單 */
.ai-index{border-top:1px solid var(--line)}
.ai-row{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:34px;
  padding:36px 10px;border-bottom:1px solid var(--line);position:relative;
  transition:padding-left .4s cubic-bezier(.2,.7,.3,1),background .4s}
.ai-row::after{content:"";position:absolute;left:0;bottom:-1px;height:2px;width:0;background:var(--grad);transition:width .5s}
.ai-row:hover{padding-left:30px;background:linear-gradient(90deg,rgba(124,58,237,.08),transparent 70%)}
.ai-row:hover::after{width:100%}
.ai-no{font-family:var(--mono);font-weight:700;font-size:clamp(1.7rem,3.4vw,2.7rem);line-height:1;
  color:rgba(184,150,255,.32);min-width:2.2em;transition:color .35s}
.ai-row:hover .ai-no{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.ai-main h3{font-size:clamp(1.35rem,2.7vw,2rem);font-weight:800;letter-spacing:-.01em}
.ai-main p{color:var(--txt-dim);margin-top:10px;max-width:64ch;font-size:.98rem}
.ai-main .ai-tags{margin-top:16px}
.ai-arrow{font-size:1.9rem;color:var(--cyan);justify-self:end;transition:transform .4s}
.ai-row:hover .ai-arrow{transform:translate(8px,-8px)}

.ai-closing{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
  margin-top:48px;padding:36px 40px;border-radius:var(--radius);
  background:linear-gradient(120deg,rgba(124,58,237,.2),rgba(217,70,239,.05));border:1px solid rgba(217,70,239,.3)}
.ai-closing > div{flex:1;min-width:260px}
.ai-closing h3{font-size:clamp(1.4rem,2.6vw,1.75rem);font-weight:800}
.ai-closing p{color:var(--txt-dim);margin-top:8px;max-width:56ch}
.ai-closing .btn{flex:none}
@media (max-width:640px){
  .ai-row{grid-template-columns:auto 1fr;gap:16px;padding:26px 4px}
  .ai-arrow{display:none}
  .ai-main p{font-size:.92rem}
  .ai-closing{padding:28px 24px}
}

/* 手機 hero 溢出修正 */
@media (max-width:640px){
  .hero-badge{letter-spacing:.1em;font-size:.56rem;padding:8px 14px;white-space:nowrap}
  .hero-inner{padding:0 20px}
  .hero-stats{gap:20px}
  .stat b{font-size:clamp(1.6rem,7vw,2rem)}
}

/* 跑馬燈裁切容器（防止傾斜/縮放造成頁面橫向溢出） */
html{overflow-x:hidden}
.marquee-wrap{overflow:hidden;width:100%}
.marquee{transform:rotate(-2.2deg);width:108%;margin-left:-4%;scale:1}

@media (max-width:640px){
  .hero-tagline{font-size:1.05rem;letter-spacing:.06em}
  .hero-brand{font-size:clamp(2.8rem,15vw,4.5rem)!important}
}

/* 防止幽靈大字/子元素造成頁面橫向溢出 */
.section{overflow-x:clip}
.hero{overflow:hidden}
@media (max-width:640px){
  .hero-cta{width:100%}
  .hero-cta .btn{flex:1 1 140px;text-align:center;padding:13px 14px;font-size:.95rem}
  .hero-stats{width:100%;gap:14px}
  .stat{flex:1}
  .sec-head[data-ghost]::before{font-size:clamp(3rem,15vw,4.2rem)}
}

/* 修正 grid 項目被不可斷行大字撐寬 → 全頁溢出 */
.hero-text{min-width:0}
@media (max-width:640px){
  .hero-brand{font-size:clamp(2.4rem,13vw,3.6rem)!important;letter-spacing:.02em!important}
}

/* ═══════════════ 動畫增強 ═══════════════ */
/* 頂部滾動進度條 */
.scroll-prog{position:fixed;top:0;left:0;height:3px;width:0;z-index:300;background:var(--grad);
  box-shadow:0 0 12px rgba(217,70,239,.7);pointer-events:none}

/* 漸層文字緩慢流動 */
.grad{background-size:220% auto;animation:gradFlow 7s ease-in-out infinite}
@keyframes gradFlow{0%,100%{background-position:0 50%}50%{background-position:100% 50%}}

/* Hero 火花 Q 漂浮 + 火花閃爍 */
.hero-logo{animation:qFloat 5.5s ease-in-out infinite;will-change:transform}
@keyframes qFloat{0%,100%{transform:translateY(0) rotate(0deg)}50%{transform:translateY(-16px) rotate(3.5deg)}}
.hero-logo .spark{transform-box:fill-box;transform-origin:center;animation:qTwinkle 2.6s ease-in-out infinite}
@keyframes qTwinkle{0%,100%{opacity:.5;transform:scale(.7)}50%{opacity:1;transform:scale(1.3)}}

/* 主按鈕光澤掃過 */
.btn-primary{position:relative;overflow:hidden}
.btn-primary::after{content:"";position:absolute;top:0;left:-70%;width:45%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.35),transparent);
  transform:skewX(-20deg);transition:left .6s ease}
.btn-primary:hover::after{left:130%}

/* 幽靈大字滾動視差（JS 設 --gx） */
.sec-head[data-ghost]::before{transform:translateX(var(--gx,0));transition:transform .1s linear}

/* AI 清單逐列進場 */
.ai-index .ai-row:nth-child(2){transition-delay:.08s}
.ai-index .ai-row:nth-child(3){transition-delay:.16s}
.ai-index .ai-row:nth-child(4){transition-delay:.24s}
.ai-index .ai-row:nth-child(5){transition-delay:.32s}

/* Hero 進場（標誌淡入放大） */
@keyframes logoIn{from{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}

@media (prefers-reduced-motion:reduce){
  .grad,.hero-logo,.hero-logo .spark{animation:none!important}
  .scroll-prog,.btn-primary::after{display:none}
  .sec-head[data-ghost]::before{transform:none}
}

/* ═══════════════ 語言切換 ═══════════════ */
.lang-switch{display:inline-flex;gap:2px;border:1px solid var(--line);border-radius:99px;padding:3px;margin-left:8px}
.lang-btn{background:none;border:0;color:var(--txt-dim);font-family:var(--font);font-size:.8rem;font-weight:700;
  padding:5px 11px;border-radius:99px;cursor:pointer;transition:color .2s,background .2s;line-height:1}
.lang-btn:hover{color:var(--txt)}
.lang-btn.on{background:var(--grad);color:#fff}
@media (max-width:640px){.lang-switch{margin:12px 0 0}}

.about-text .about-onprem{font-size:.95rem;color:var(--txt-dim);margin-top:16px}

/* ═══════════════ 目標客戶一句話 ═══════════════ */
.hero-aud{margin-top:14px;font-size:.95rem;color:var(--cyan);font-weight:700;letter-spacing:.04em}

/* ═══════════════ FAQ ═══════════════ */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .3s}
.faq-item[open]{border-color:rgba(217,70,239,.4)}
.faq-item summary{cursor:pointer;list-style:none;padding:18px 22px;font-weight:700;font-size:1.02rem;position:relative;padding-right:52px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:1.5rem;font-weight:400;color:var(--cyan);transition:transform .3s}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item p{padding:0 22px 18px;color:var(--txt-dim);font-size:.94rem;line-height:1.8}

/* ═══════════════ 預約 Demo 表單 ═══════════════ */
.contact-wrap{display:grid;grid-template-columns:1.25fr .75fr;gap:28px;max-width:980px;margin:0 auto}
.contact-form{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px 30px 26px;display:flex;flex-direction:column;gap:16px}
.contact-form h3{font-size:1.3rem;font-weight:800}
.cf-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact-form label{display:flex;flex-direction:column;gap:6px;font-size:.88rem;color:var(--txt-dim)}
.contact-form input[type=text],.contact-form textarea{background:rgba(13,8,32,.6);border:1px solid var(--line);border-radius:10px;
  padding:11px 14px;color:var(--txt);font-family:var(--font);font-size:.95rem;transition:border-color .25s}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:rgba(217,70,239,.55)}
.cf-needs{border:0;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.cf-needs legend{font-size:.88rem;color:var(--txt-dim);margin-bottom:8px}
.cf-needs label{flex-direction:row;align-items:center;gap:7px;cursor:pointer;background:rgba(13,8,32,.5);
  border:1px solid var(--line);border-radius:99px;padding:7px 16px;font-size:.9rem;color:var(--txt);transition:border-color .25s,background .25s}
.cf-needs label:has(input:checked){background:rgba(124,58,237,.28);border-color:rgba(217,70,239,.55)}
.cf-needs input{accent-color:#d946ef}
.cf-needs i{font-style:normal}
.cf-hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.contact-form .btn{align-self:flex-start;border:0;cursor:pointer;font-family:var(--font)}
.cf-status{font-size:.9rem;min-height:1.4em;margin:0}
.cf-status.ok{color:#7fe0ae}
.cf-status.err{color:#ffb3b3}
.contact-side{display:flex;flex-direction:column;gap:16px}
.contact-note{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;font-size:.9rem;color:var(--txt-dim);display:flex;flex-direction:column;gap:10px}
.contact-note strong{color:var(--txt)}
@media (max-width:860px){.contact-wrap{grid-template-columns:1fr}.cf-row{grid-template-columns:1fr}}

/* ═══════════════ 手機首屏精簡 ═══════════════ */
@media (max-width:640px){
  .hero{padding:96px 24px 40px}
  .hero-logo{max-width:92px;margin-bottom:2px}
  .hero-badge{margin-bottom:14px}
  .hero-tagline{margin-top:10px}
  .hero-sub{margin-top:14px;font-size:.95rem}
  .hero-aud{font-size:.86rem;margin-top:10px}
  .hero-cta{margin-top:22px}
  .hero-stats{margin-top:30px}
}

/* 手機：hero 改自然高度，CTA 提早入屏 */
@media (max-width:640px){
  .hero{min-height:auto}
}