/* ============ GoodTech POS — Design System ============ */
:root{
  --navy-900:#0b1f3a; --navy-700:#14315c; --navy-500:#274a7c;
  --accent:#ff6a3d; --accent-dark:#e8532a; --accent-soft:#fff0ea;
  --teal:#0ea5a4; --wa:#25d366; --wa-dark:#1da851;
  --bg:#f6f8fb; --card:#ffffff; --ink:#17233b; --muted:#5b6b83;
  --line:#e5eaf2; --radius:16px; --radius-lg:22px;
  --shadow:0 10px 30px rgba(11,31,58,.08);
  --shadow-lg:0 20px 50px rgba(11,31,58,.14);
  --font:'Noto Sans TC',-apple-system,'PingFang TC','Microsoft JhengHei',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
h1,h2,h3,h4{line-height:1.3;font-weight:900;letter-spacing:.01em}
h1{font-size:clamp(2rem,4.6vw,3.4rem)}
h2{font-size:clamp(1.5rem,3vw,2.2rem)}
h3{font-size:1.15rem}
section{scroll-margin-top:90px}

.container{max-width:1140px;margin:0 auto;padding:0 22px}
.container-narrow{max-width:860px}
.muted{color:var(--muted)}
.fineprint{font-size:.85rem;color:var(--muted);text-align:center;margin-top:18px}
.pt-0{padding-top:0!important}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;
  border:2px solid transparent;border-radius:999px;padding:12px 26px;font-size:1rem;cursor:pointer;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;box-shadow:0 8px 20px rgba(255,106,61,.35)}
.btn-primary:hover{box-shadow:0 12px 28px rgba(255,106,61,.45)}
.btn-outline{border-color:var(--navy-700);color:var(--navy-700);background:#fff}
.btn-outline:hover{background:var(--navy-700);color:#fff}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.08)}
.btn-ghost:hover{background:rgba(255,255,255,.18)}
.btn-light{background:#fff;color:var(--navy-900)}
.btn-ghost-light{border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.15)}
.btn-sm{padding:8px 18px;font-size:.92rem}
.btn-lg{padding:15px 32px;font-size:1.05rem}
.btn-block{width:100%}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);transition:box-shadow .3s}
.site-header.scrolled{box-shadow:0 6px 20px rgba(11,31,58,.08)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-size:1.15rem}
.brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--accent),var(--accent-dark));
  color:#fff;display:grid;place-items:center;font-weight:900;font-size:.95rem;box-shadow:0 4px 12px rgba(255,106,61,.35)}
.brand-text strong{color:var(--accent)}
.main-nav{display:flex;gap:4px}
.main-nav a{padding:8px 13px;border-radius:10px;font-weight:500;color:var(--muted);font-size:.97rem;position:relative;transition:.2s}
.main-nav a:hover{color:var(--ink);background:var(--bg)}
.main-nav a.active{color:var(--accent);font-weight:700}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2.5px;background:var(--ink);border-radius:2px;transition:.3s}

/* ---------- Hero ---------- */
.hero{background:radial-gradient(1000px 500px at 85% -10%,rgba(255,106,61,.28),transparent 60%),
  radial-gradient(700px 400px at 0% 110%,rgba(14,165,164,.25),transparent 60%),
  linear-gradient(160deg,var(--navy-900),var(--navy-700) 70%,#1c3f74);
  color:#fff;padding:88px 0 96px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{display:inline-block;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  padding:6px 16px;border-radius:999px;font-size:.88rem;letter-spacing:.08em;margin-bottom:20px}
.hero .hl{background:linear-gradient(120deg,#ffb347,var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:1.12rem;color:rgba(255,255,255,.82);margin:20px 0 30px;max-width:34em}
.page-hero .lead{color:var(--muted)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:36px;margin-top:42px}
.hero-stats li{display:flex;flex-direction:column}
.hero-stats strong{font-size:1.9rem;font-weight:900;color:#ffb347}
.hero-stats span{font-size:.88rem;color:rgba(255,255,255,.65)}

/* Hero visual — CSS POS mockup */
.hero-visual{position:relative}
.pos-mock{background:#fff;border-radius:20px;box-shadow:var(--shadow-lg);overflow:hidden;transform:rotate(1.5deg);
  border:1px solid rgba(255,255,255,.4)}
.pos-mock-top{display:flex;align-items:center;gap:6px;background:var(--navy-900);padding:12px 16px}
.pos-mock-top span{width:10px;height:10px;border-radius:50%;background:#ff5f57}
.pos-mock-top span:nth-child(2){background:#febc2e}
.pos-mock-top span:nth-child(3){background:#28c840}
.pos-mock-top em{margin-left:auto;font-style:normal;color:rgba(255,255,255,.6);font-size:.75rem}
.pos-mock-body{display:grid;grid-template-columns:1.35fr 1fr;gap:0;min-height:250px}
.pos-menu{padding:14px;border-right:1px dashed var(--line)}
.pos-chips{display:flex;gap:6px;margin-bottom:12px;flex-wrap:wrap}
.pos-chips i{font-style:normal;font-size:.68rem;background:var(--bg);border-radius:999px;padding:4px 10px;color:var(--muted)}
.pos-chips i.on{background:var(--accent);color:#fff}
.pos-items{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.pos-items b{background:var(--bg);border-radius:12px;padding:12px 6px;text-align:center;font-size:1.4rem;font-weight:400}
.pos-items small{display:block;font-size:.7rem;color:var(--muted);margin-top:4px}
.pos-order{padding:14px;display:flex;flex-direction:column;font-size:.8rem}
.pos-order p{font-weight:900;margin-bottom:8px;color:var(--navy-700)}
.pos-order ul li{display:flex;justify-content:space-between;color:var(--muted);padding:3px 0}
.pos-total{margin-top:auto;padding-top:10px;border-top:1px solid var(--line);display:flex;justify-content:space-between;font-weight:700}
.pos-total strong{color:var(--accent);font-size:1.1rem}
.pos-pay{margin-top:8px;background:#e8faf0;color:#128c4b;text-align:center;border-radius:8px;padding:6px;font-weight:700;font-size:.75rem}
.float-tag{position:absolute;background:#fff;color:var(--ink);border-radius:12px;padding:9px 14px;font-size:.82rem;
  font-weight:700;box-shadow:var(--shadow-lg);animation:float 4s ease-in-out infinite}
.float-tag.t1{top:-16px;left:-10px}
.float-tag.t2{bottom:34px;right:-14px;animation-delay:1.2s}
.float-tag.t3{bottom:-16px;left:24px;animation-delay:2.2s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

/* ---------- Trust bar ---------- */
.trustbar{background:var(--navy-900);color:rgba(255,255,255,.85);border-top:1px solid rgba(255,255,255,.1)}
.trustbar-in{display:flex;justify-content:center;gap:34px;flex-wrap:wrap;padding:14px 22px;font-size:.92rem;font-weight:500}

/* ---------- Sections ---------- */
.section{padding:84px 0}
.section-alt{background:#fff}
.section-head{text-align:center;max-width:640px;margin:0 auto 48px}
.kicker{display:inline-block;color:var(--accent);font-weight:700;letter-spacing:.14em;font-size:.85rem;
  text-transform:uppercase;margin-bottom:10px}
.kicker::before{content:"— "}
.kicker::after{content:" —"}
.section-head p{color:var(--muted);margin-top:12px}

/* ---------- Grid & cards ---------- */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;
  box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}

.feature-card .f-ico{width:56px;height:56px;border-radius:16px;background:var(--accent-soft);display:grid;
  place-items:center;font-size:1.7rem;margin-bottom:16px}
.feature-card h3{margin-bottom:8px}
.feature-card p{color:var(--muted);font-size:.95rem}

/* Tech cards */
.tech-cards{margin-bottom:28px}
.tech-card h3{margin-bottom:6px}
.tech-cases{color:var(--accent);font-weight:700;font-size:.9rem;margin-bottom:12px}
.tech-card ul li{padding:6px 0 6px 24px;position:relative;color:var(--muted);font-size:.95rem}
.tech-card ul li::before{content:"✓";position:absolute;left:0;color:var(--teal);font-weight:900}
.tech-card strong{color:var(--ink)}

/* Case cards */
.case-no{display:inline-block;background:var(--navy-900);color:#fff;font-size:.72rem;font-weight:700;
  padding:3px 10px;border-radius:999px;margin-bottom:12px;letter-spacing:.06em}
.case-card h3{margin-bottom:8px}
.case-card p{color:var(--muted);font-size:.92rem}
.case-cta{background:linear-gradient(150deg,var(--navy-900),var(--navy-700));color:#fff;border:0;
  display:flex;flex-direction:column;justify-content:center;gap:8px}
.case-cta p{color:rgba(255,255,255,.75)}
.case-cta .btn{align-self:flex-start;margin-top:6px}

/* ---------- Plans ---------- */
.plan-card{display:flex;flex-direction:column;position:relative;text-align:left}
.plan-card h3{font-size:1.25rem}
.plan-desc{color:var(--muted);font-size:.9rem;margin-top:2px}
.plan-price{font-size:3rem;font-weight:900;color:var(--navy-900);margin:14px 0 18px;line-height:1}
.plan-price sup{font-size:1rem;vertical-align:super;margin-right:4px;color:var(--muted);font-weight:700}
.plan-price span{font-size:1rem;color:var(--muted);font-weight:500}
.plan-card ul{margin-bottom:24px;flex:1}
.plan-card ul li{padding:7px 0;border-bottom:1px dashed var(--line);font-size:.95rem;color:var(--muted)}
.plan-card ul li:last-child{border-bottom:0}
.plan-popular{border:2px solid var(--accent);box-shadow:0 18px 44px rgba(255,106,61,.18)}
.badge-pop{position:absolute;top:-14px;right:22px;background:linear-gradient(135deg,var(--accent),var(--accent-dark));
  color:#fff;font-size:.8rem;font-weight:700;padding:6px 14px;border-radius:999px;box-shadow:0 6px 16px rgba(255,106,61,.4)}

/* ---------- Price list ---------- */
.price-list{display:flex;flex-direction:column;gap:14px}
.price-item{display:flex;align-items:center;gap:22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:22px 26px;box-shadow:var(--shadow);flex-wrap:wrap}
.pi-info{flex:1;min-width:240px}
.pi-info h3{font-size:1.05rem}
.pi-info small{color:var(--muted);font-weight:500}
.pi-info p{color:var(--muted);font-size:.88rem;margin-top:4px}
.pi-price{text-align:right;min-width:120px}
.pi-price strong{font-size:1.7rem;color:var(--navy-900);font-weight:900}
.pi-price small{display:block;color:var(--muted);font-size:.78rem}
.pi-alt strong{color:var(--accent)}
.badge-new{background:var(--teal);color:#fff;font-size:.68rem;padding:3px 9px;border-radius:6px;
  vertical-align:middle;margin-left:6px;letter-spacing:.05em}

/* ---------- Calculator ---------- */
.calc{padding:10px 30px}
.calc-row{display:grid;grid-template-columns:1fr auto 90px;align-items:center;gap:18px;padding:18px 0;border-bottom:1px dashed var(--line)}
.calc-info strong{display:block}
.calc-info small{color:var(--muted);font-size:.82rem}
.calc-sub{text-align:right;font-weight:900;color:var(--navy-700);font-size:1.05rem;min-width:80px}
.stepper{display:flex;align-items:center;gap:4px;background:var(--bg);border-radius:999px;padding:4px}
.stepper button{width:34px;height:34px;border-radius:50%;border:0;background:#fff;font-size:1.15rem;cursor:pointer;
  color:var(--navy-700);font-weight:900;box-shadow:0 2px 6px rgba(11,31,58,.12);transition:.2s}
.stepper button:hover{background:var(--accent);color:#fff}
.stepper .qty-val{min-width:34px;text-align:center;font-weight:900}
.calc-total{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px 0 18px;flex-wrap:wrap}
.calc-total small{color:var(--muted)}
.calc-total-num{font-size:2.6rem;font-weight:900;color:var(--accent);line-height:1.1}
.calc-total-num sup{font-size:1rem;margin-right:4px;color:var(--muted)}
.calc-total-num em{font-style:normal;font-size:1.1rem;color:var(--muted);font-weight:500}

/* Toggle switch */
.switch{position:relative;display:inline-block;width:56px;height:30px}
.switch input{opacity:0;width:0;height:0}
.slider{position:absolute;inset:0;background:#cbd5e1;border-radius:999px;cursor:pointer;transition:.3s}
.slider::before{content:"";position:absolute;width:24px;height:24px;border-radius:50%;background:#fff;top:3px;left:3px;transition:.3s;box-shadow:0 2px 5px rgba(0,0,0,.2)}
.switch input:checked + .slider{background:var(--teal)}
.switch input:checked + .slider::before{transform:translateX(26px)}

/* ---------- FAQ ---------- */
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;
  padding:0 22px;box-shadow:var(--shadow);overflow:hidden}
.faq summary{cursor:pointer;font-weight:700;padding:18px 0;list-style:none;position:relative;padding-right:34px;font-size:1.02rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"＋";position:absolute;right:2px;top:50%;transform:translateY(-50%);
  font-size:1.3rem;color:var(--accent);transition:.25s;font-weight:400}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details p{color:var(--muted);padding:0 0 18px;font-size:.95rem}
.faq details a{color:var(--accent);font-weight:700}

/* ---------- CTA banner ---------- */
.cta-banner{background:radial-gradient(600px 300px at 80% 0%,rgba(255,179,71,.35),transparent 60%),
  linear-gradient(140deg,var(--accent-dark),var(--accent));color:#fff;padding:64px 0}
.cta-in{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-in p{color:rgba(255,255,255,.85);margin-top:6px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:28px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:20px}
.wa-card{display:flex;gap:18px;align-items:center;border-left:5px solid var(--wa)}
.wa-ico{width:56px;height:56px;border-radius:16px;background:#e8fbf0;display:grid;place-items:center;font-size:1.7rem;flex-shrink:0}
.wa-num{font-size:1.6rem;font-weight:900;color:var(--wa-dark)}
.steps{padding-left:4px}
.steps li{padding:10px 0;border-bottom:1px dashed var(--line);display:flex;flex-direction:column}
.steps li:last-child{border:0}
.steps span{color:var(--muted);font-size:.9rem}
.mini-plan-card p{color:var(--muted);font-size:.93rem;margin:6px 0 14px}

.form-card h2{margin-bottom:4px}
.form-card .muted{font-size:.92rem;margin-bottom:20px}
.field{margin-bottom:18px}
.field label{display:block;font-weight:700;font-size:.93rem;margin-bottom:7px}
.field label em{color:var(--accent);font-style:normal}
.field input,.field select,.field textarea{width:100%;border:1.5px solid var(--line);border-radius:12px;
  padding:13px 16px;font-family:inherit;font-size:1rem;color:var(--ink);background:#fbfcfe;transition:.2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);
  background:#fff;box-shadow:0 0 0 4px rgba(255,106,61,.12)}
.field textarea{resize:vertical}
.form-error{color:#d92d20;background:#fef3f2;border:1px solid #fecdca;border-radius:10px;
  padding:10px 14px;font-size:.9rem;margin-bottom:14px}

/* ---------- Page hero ---------- */
.page-hero{background:linear-gradient(160deg,var(--navy-900),var(--navy-700));color:#fff;padding:70px 0 64px;text-align:center}
.page-hero .eyebrow{margin-bottom:14px}
.page-hero .lead{margin-left:auto;margin-right:auto}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-900);color:rgba(255,255,255,.72);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding-bottom:40px}
.brand-footer{color:#fff;margin-bottom:12px}
.footer-grid h4{color:#fff;margin-bottom:14px;font-size:1rem}
.footer-grid a:not(.brand){display:block;padding:5px 0;font-size:.93rem;transition:.2s}
.footer-grid a:hover{color:var(--accent)}
.footer-grid p{font-size:.92rem}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);text-align:center;padding:18px;font-size:.85rem;color:rgba(255,255,255,.5)}

/* ---------- Floating WhatsApp ---------- */
.wa-float{position:fixed;right:22px;bottom:22px;z-index:90;width:58px;height:58px;border-radius:50%;
  background:var(--wa);color:#fff;display:grid;place-items:center;box-shadow:0 10px 26px rgba(37,211,102,.45);
  transition:transform .2s;animation:waPulse 2.6s infinite}
.wa-float:hover{transform:scale(1.1)}
@keyframes waPulse{0%,100%{box-shadow:0 10px 26px rgba(37,211,102,.45)}50%{box-shadow:0 10px 26px rgba(37,211,102,.45),0 0 0 12px rgba(37,211,102,.12)}}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-visual{max-width:480px;margin:0 auto}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .main-nav{position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:14px 22px 22px;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg);display:none}
  .site-header.nav-open .main-nav{display:flex}
  .main-nav a{padding:12px 8px;font-size:1.05rem;border-bottom:1px solid var(--line)}
  .main-nav a:last-child{border-bottom:0}
  .nav-toggle{display:flex}
  .site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
  .site-header.nav-open .nav-toggle span:nth-child(2){opacity:0}
  .site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
  .nav-actions .btn{display:none}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .hero{padding:60px 0 70px}
  .hero-stats{gap:24px}
  .section{padding:60px 0}
  .calc-row{grid-template-columns:1fr auto;}
  .calc-sub{grid-column:1/-1;text-align:left;padding-left:2px}
  .calc-total{flex-direction:column;align-items:stretch;text-align:center}
  .price-item{gap:12px}
  .pi-price{text-align:left}
  .cta-in{flex-direction:column;text-align:center}
  .cta-actions{justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:24px}
}