/* MicroOxy 微壓氧 — 企業網站樣式 */
:root{
  --ink:#0B2A30;
  --ink-2:#3C5A60;
  --muted:#6B8287;
  --bg:#FAF8F4;
  --surface:#FFFFFF;
  --line:#E3E6E2;
  --deep:#062026;
  --deep-2:#0B3038;
  --aqua:#2A9D8B;
  --aqua-lt:#4FD8C0;
  --sand:#C9A66B;
  --todo-bg:#FFF4C2;
  --todo-ink:#7A4B00;
  --radius:14px;
  --max:1120px;
  --font:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.75;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:var(--aqua);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.35;margin:0 0 .6em;font-weight:700;letter-spacing:.02em}
h1{font-size:clamp(2rem,4.8vw,3.25rem)}
h2{font-size:clamp(1.5rem,3vw,2.1rem)}
h3{font-size:1.15rem}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.eyebrow{font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;color:var(--aqua);font-weight:700;margin-bottom:.8em;display:block}
.lead{font-size:1.1rem;color:var(--ink-2)}
.todo{background:var(--todo-bg);color:var(--todo-ink);padding:0 .35em;border-radius:4px;font-weight:600;border:1px dashed #E0B400}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(250,248,244,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:1.1rem}
.brand:hover{text-decoration:none}
.brand-mark{width:34px;height:34px;border-radius:50%;background:radial-gradient(circle at 35% 35%,var(--aqua-lt),var(--aqua) 60%,var(--deep-2));flex:none}
.brand small{display:block;font-size:.68rem;letter-spacing:.2em;color:var(--muted);font-weight:600;line-height:1}
.nav{display:flex;gap:4px;align-items:center}
.nav a{color:var(--ink-2);padding:8px 12px;border-radius:8px;font-size:.95rem}
.nav a:hover,.nav a[aria-current="page"]{background:#EEF3F1;color:var(--ink);text-decoration:none}
.nav .btn,.nav .btn:hover{margin-left:8px;color:#fff;background:var(--aqua)}
.nav .btn:hover{background:#238777}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 10px;font-size:1rem;color:var(--ink);cursor:pointer}
@media (max-width:860px){
  .nav-toggle{display:block}
  .nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--bg);flex-direction:column;align-items:stretch;padding:8px 20px 16px;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .nav .btn{margin:8px 0 0;text-align:center}
}

/* Buttons */
.btn{display:inline-block;padding:12px 22px;border-radius:999px;background:var(--aqua);color:#fff;font-weight:600;border:0;cursor:pointer}
.btn:hover{background:#238777;text-decoration:none;color:#fff}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1)}

/* Hero */
.hero{background:var(--deep);color:#EAF4F2;position:relative;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;padding-top:72px;padding-bottom:72px}
.hero h1{color:#fff}
.hero h1 em{font-style:normal;color:var(--aqua-lt)}
.hero .lead{color:#A9C3C4}
.hero .eyebrow{color:var(--aqua-lt)}
.hero-img{border-radius:20px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.45)}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:40px;border-top:1px solid rgba(255,255,255,.12);padding-top:24px}
.hero-stats b{display:block;font-size:1.6rem;color:#fff;line-height:1.2}
.hero-stats div > span{font-size:.82rem;color:#8FA9AD}
@media (max-width:860px){.hero .wrap{grid-template-columns:1fr;padding-top:48px;padding-bottom:48px}.hero-stats{grid-template-columns:repeat(2,1fr)}}

/* Sections */
section{padding:88px 0}
section.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:44px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media (max-width:860px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}section{padding:64px 0}}
@media (min-width:600px) and (max-width:860px){.grid-4{grid-template-columns:1fr 1fr}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
section.alt .card{background:var(--bg)}
.card h3{margin-bottom:.4em}
.card p{color:var(--ink-2);margin:0;font-size:.95rem}
.num{font-size:.8rem;font-weight:700;color:var(--aqua);letter-spacing:.1em;display:block;margin-bottom:10px}
.rounded-img{border-radius:var(--radius);overflow:hidden}
.scene{border-radius:var(--radius);overflow:hidden;background:var(--surface);border:1px solid var(--line)}
.scene img{aspect-ratio:16/10;object-fit:cover;width:100%}
.scene div{padding:20px 22px}
.scene p{color:var(--ink-2);margin:0;font-size:.95rem}

/* Spec table */
.spec{width:100%;border-collapse:collapse;font-size:.95rem}
.spec th,.spec td{text-align:left;padding:12px 4px;border-bottom:1px solid var(--line);vertical-align:top}
.spec th{width:38%;color:var(--muted);font-weight:600}

/* Steps */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.steps li{list-style:none;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;position:relative}
.steps li::before{counter-increment:s;content:"STEP 0" counter(s);font-size:.75rem;letter-spacing:.14em;color:var(--aqua);font-weight:700;display:block;margin-bottom:8px}
.steps{padding:0;margin:0}
.steps p{color:var(--ink-2);margin:0;font-size:.95rem}
@media (max-width:860px){.steps{grid-template-columns:1fr}}

/* Pricing */
.price-card{display:flex;flex-direction:column}
.price{font-size:2rem;font-weight:700;color:var(--ink);margin:.2em 0 .1em}
.price small{font-size:.9rem;color:var(--muted);font-weight:500}
.price-card .plan + .plan{margin-top:14px}
.price-card .plan h3{margin-bottom:0}
.price-card .plan .price{font-size:1.75rem;line-height:1.25}
.price-card .plan .price small{display:block;margin-top:4px;line-height:1.4}
.price-card ul{padding-left:1.2em;margin:12px 0 0;color:var(--ink-2);font-size:.95rem}
.note{font-size:.88rem;color:var(--muted)}
.pay-logos{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.pay-logos span{border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:6px 12px;font-size:.88rem;font-weight:600;color:var(--ink-2)}

/* Notice */
.notice{background:#EEF6F4;border-left:4px solid var(--aqua);padding:18px 22px;border-radius:0 var(--radius) var(--radius) 0;color:var(--ink-2);font-size:.95rem}
.notice.warn{background:#FDF3EC;border-color:#E08A66}

/* Contact */
.contact-list{list-style:none;padding:0;margin:0}
.contact-list li{display:flex;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}
.contact-list b{min-width:110px;color:var(--muted);font-weight:600}

/* Legal pages */
.page-hero{background:var(--deep);color:#EAF4F2;padding:64px 0 48px}
.page-hero h1{color:#fff;font-size:clamp(1.8rem,4vw,2.5rem)}
.page-hero p{color:#A9C3C4;margin:0}
.legal{padding:56px 0 88px}
.legal .wrap{max-width:820px}
.legal h2{font-size:1.3rem;margin-top:2.2em;padding-top:.4em;border-top:1px solid var(--line)}
.legal h2:first-of-type{margin-top:0;border-top:0}
.legal h3{font-size:1.05rem;margin-top:1.4em}
.legal ol,.legal ul{padding-left:1.4em}
.legal li{margin-bottom:.4em}
.legal table{width:100%;border-collapse:collapse;margin:1em 0 1.4em;font-size:.95rem}
.legal th,.legal td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.legal th{background:#F1F4F2}
.toc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px 24px;margin-bottom:36px}
.toc ol{margin:.4em 0 0}
.meta{font-size:.9rem;color:var(--muted)}
@media (max-width:600px){.legal table{display:block;overflow-x:auto}}

/* Footer */
.site-footer{background:var(--deep);color:#A9C3C4;padding:56px 0 28px;font-size:.92rem}
.site-footer a{color:#CFE6E2}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
.site-footer h4{color:#fff;font-size:.95rem;margin:0 0 12px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:6px}
.site-footer .todo{font-size:.85rem}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.82rem;color:#6F8E92}
@media (max-width:860px){.footer-grid{grid-template-columns:1fr}}

/* ---------- Motion & data visuals ---------- */
.js-anim .hero-copy,.js-anim .hero-img{visibility:hidden}
.read-progress{position:fixed;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--aqua),var(--aqua-lt));transform:scaleX(0);transform-origin:0 50%;z-index:60;pointer-events:none}
.site-header{transition:box-shadow .3s,background .3s}
.site-header.scrolled{box-shadow:0 6px 24px rgba(6,32,38,.08);background:rgba(250,248,244,.97)}

.hero{isolation:isolate}
.hero .wrap{position:relative;z-index:1}
.hero h1 .line{display:block}
.bubbles{position:absolute;inset:0;overflow:hidden;z-index:0;pointer-events:none}
.bubble{position:absolute;bottom:0;border-radius:50%;background:radial-gradient(circle at 35% 30%,rgba(147,242,225,.9),rgba(79,216,192,.25) 60%,rgba(79,216,192,0) 72%);will-change:transform}
.hero-stats b{font-variant-numeric:tabular-nums}

.stat-strip{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin:0 0 44px}
.stat{background:var(--deep);color:#A9C3C4;border-radius:var(--radius);padding:22px 20px;position:relative;overflow:hidden}
.stat::after{content:"";position:absolute;right:-30px;top:-30px;width:90px;height:90px;border-radius:50%;background:radial-gradient(circle,rgba(79,216,192,.25),rgba(79,216,192,0) 70%)}
.stat b{display:flex;align-items:baseline;gap:4px;color:#fff;font-size:2rem;line-height:1.2;font-variant-numeric:tabular-nums}
.stat b small{font-size:.9rem;color:var(--aqua-lt);font-weight:600}
.stat > span{font-size:.85rem}
@media (max-width:860px){.stat-strip{grid-template-columns:repeat(2,1fr)}.stat-strip .stat:last-child{grid-column:span 2}}

.card,.scene{transition:translate .35s ease,box-shadow .35s ease}
.card:hover,.scene:hover{translate:0 -4px;box-shadow:0 14px 34px rgba(6,32,38,.08)}

.steps li{transition:border-color .3s,box-shadow .3s,background .3s}
.steps li.active{border-color:var(--aqua);box-shadow:0 0 0 3px rgba(42,157,139,.15);background:#F2FAF8}

.chart-card{margin-top:28px;background:var(--deep);color:#CFE6E2;border-radius:20px;padding:28px}
.chart-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:12px}
.chart-head h3{color:#fff}
.chart-head .note{color:#8FA9AD;margin:0}
.chart-replay{flex:none;background:transparent;color:var(--aqua-lt);border:1px solid rgba(79,216,192,.5);border-radius:999px;padding:8px 16px;font:inherit;font-size:.9rem;cursor:pointer}
.chart-replay:hover{background:rgba(79,216,192,.12)}
.chart-body{display:grid;grid-template-columns:1fr 220px;gap:24px;align-items:center}
.chart-svg{width:100%;height:auto;overflow:visible}
.pc-phases rect{fill:rgba(255,255,255,.03)}
.pc-phases .ph-hold{fill:rgba(79,216,192,.06)}
.pc-phases text{fill:#8FA9AD;font-size:13px}
.pc-grid line{stroke:rgba(255,255,255,.08)}
.pc-grid text{fill:#6F8E92;font-size:12px}
.pc-base{fill:none;stroke:rgba(255,255,255,.15);stroke-width:2;stroke-dasharray:4 6}
.pc-area{fill:url(#pc-fill)}
.pc-line{fill:none;stroke:var(--aqua-lt);stroke-width:3.5;stroke-linejoin:round;stroke-linecap:round}
.pc-dot{fill:#fff;stroke:var(--aqua-lt);stroke-width:4;opacity:0}
.chart-readouts{margin:0;display:grid;gap:12px}
.chart-readouts div{border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:10px 14px}
.chart-readouts dt{font-size:.78rem;color:#8FA9AD}
.chart-readouts dd{margin:0;font-size:1.3rem;color:#fff;font-weight:700;font-variant-numeric:tabular-nums}
@media (max-width:860px){
  .chart-card{padding:20px 16px}
  .chart-body{grid-template-columns:1fr}
  .chart-readouts{grid-template-columns:repeat(2,1fr)}
  .chart-readouts dd{font-size:1.05rem}
  .pc-phases text{font-size:30px}
  .pc-grid text{font-size:26px}
  .pc-grid .t70,.pc-grid .t-axis{display:none}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  html:not(.motion-force) .card,html:not(.motion-force) .scene,html:not(.motion-force) .steps li,html:not(.motion-force) .site-header{transition:none}
  html:not(.motion-force) .card:hover,html:not(.motion-force) .scene:hover{translate:none}
}

/* ---------- RE: 品牌字動畫 ---------- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.re-mark{display:flex;align-items:baseline;flex-wrap:wrap;gap:6px 16px;margin:0 0 14px}
.re-word{font-family:"Sora","Segoe UI",system-ui,sans-serif;font-weight:700;font-size:clamp(2.2rem,5vw,3.4rem);letter-spacing:.02em;line-height:1;color:#fff;display:inline-flex;align-items:baseline}
.re-prefix{color:#fff}
.re-suffix{color:var(--aqua-lt);min-width:.2em}
.re-caret{display:inline-block;width:3px;height:.8em;margin-left:4px;background:var(--aqua-lt);transform:translateY(.08em);opacity:0}
.js-anim .re-caret,.re-caret.on{opacity:1;animation:re-blink 1s steps(1) infinite}
@keyframes re-blink{50%{opacity:0}}
.re-cap{font-size:1rem;color:#A9C3C4;letter-spacing:.1em}
.re-cap::before{content:"— ";color:var(--aqua)}
@media (prefers-reduced-motion: reduce){html:not(.motion-force) .re-caret{display:none}}