:root{
  --navy:#0c3453;
  --navy-2:#0f4167;
  --blue:#2d77a8;
  --sky:#8fc7e7;
  --ice:#edf7fb;
  --paper:#f8fbfd;
  --ink:#102333;
  --muted:#607282;
  --line:#d8e6ef;
  --white:#fff;
  --shadow:0 22px 70px rgba(12,52,83,.12);
  --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans TC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--ink);
  background:#fff;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
.container{width:min(1160px,calc(100% - 40px));margin-inline:auto}
.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}

.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(12,52,83,.08);
}
.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:12px;min-width:max-content}
.brand-seal{
  width:46px;height:46px;border-radius:12px;
  background:linear-gradient(145deg,var(--navy),var(--blue));
  color:white;display:grid;place-items:center;
  font-weight:900;font-size:13px;letter-spacing:.08em;
  box-shadow:0 10px 30px rgba(12,52,83,.2);
}
.brand strong{display:block;font-size:18px;line-height:1.15}
.brand small{display:block;color:var(--muted);font-size:11px;margin-top:4px;letter-spacing:.08em}
.main-nav{display:flex;align-items:center;gap:28px;font-size:14px;font-weight:700}
.main-nav a:not(.nav-cta){color:#345064}
.main-nav a:hover{color:var(--blue)}
.nav-cta{
  background:var(--navy);color:white;padding:11px 18px;border-radius:999px;
  box-shadow:0 9px 24px rgba(12,52,83,.2);
}
.menu-btn{display:none;background:none;border:0;padding:8px}
.menu-btn span:not(.sr-only){display:block;width:24px;height:2px;background:var(--navy);margin:5px}

.hero{
  position:relative;overflow:hidden;
  min-height:700px;
  background:
    radial-gradient(circle at 82% 12%, rgba(143,199,231,.45), transparent 30%),
    linear-gradient(135deg,#f9fcfe 0%,#eef7fb 52%,#dceefa 100%);
}
.hero:before{
  content:"";position:absolute;inset:auto -10% -180px 42%;
  height:520px;border-radius:50%;
  background:linear-gradient(135deg,rgba(45,119,168,.12),rgba(143,199,231,.05));
  transform:rotate(-9deg);
}
.hero-grid{
  position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(rgba(44,100,135,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(44,100,135,.08) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(to right,transparent,black 35%,black);
}
.hero-content{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.1fr .82fr;gap:72px;
  align-items:center;padding:100px 0 90px;
}
.eyebrow,.kicker{
  color:var(--blue);font-size:12px;letter-spacing:.19em;font-weight:900;
}
.hero h1{
  margin:18px 0 24px;
  font-size:clamp(44px,5.7vw,76px);
  line-height:1.12;letter-spacing:-.05em;
}
.hero h1 span{color:var(--blue)}
.lead{font-size:18px;color:#456174;max-width:720px;margin:0 0 26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.hero-tags span{
  border:1px solid rgba(45,119,168,.24);
  background:rgba(255,255,255,.66);
  color:#315a74;padding:7px 12px;border-radius:999px;font-size:13px;font-weight:700
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:0 22px;border-radius:12px;border:1px solid transparent;
  font-weight:800;cursor:pointer;transition:.2s ease
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--navy);color:white;box-shadow:0 14px 32px rgba(12,52,83,.2)}
.btn-ghost{background:rgba(255,255,255,.65);border-color:#bfd8e7;color:var(--navy)}
.btn-white{background:white;color:var(--navy)}
.btn-outline-light{background:transparent;color:white;border-color:rgba(255,255,255,.42)}
.trust-row{
  display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:42px;
  padding-top:24px;border-top:1px solid rgba(12,52,83,.12)
}
.trust-row strong,.trust-row span{display:block}
.trust-row strong{font-size:14px}
.trust-row span{font-size:12px;color:var(--muted);margin-top:3px}

.hero-card{
  position:relative;border-radius:32px;overflow:hidden;min-height:470px;
  color:white;background:linear-gradient(160deg,#0c3453,#145b87);
  box-shadow:0 36px 90px rgba(12,52,83,.28)
}
.card-topline{
  position:absolute;top:25px;left:28px;font-size:12px;letter-spacing:.16em;font-weight:800;opacity:.7
}
.blueprint{position:absolute;inset:0;opacity:.44}
.bp-building{position:absolute;bottom:0;border:1px solid rgba(255,255,255,.35);border-bottom:0}
.bp-building:before,.bp-building:after{content:"";position:absolute;left:20%;right:20%;height:1px;background:rgba(255,255,255,.2)}
.bp-building:before{top:28%}.bp-building:after{top:62%}
.b1{width:108px;height:265px;left:8%}.b2{width:165px;height:350px;left:34%}.b3{width:110px;height:230px;right:7%}
.bp-line{position:absolute;background:rgba(255,255,255,.22)}
.l1{width:1px;height:88%;left:23%;top:8%}.l2{height:1px;width:86%;left:7%;top:35%}.l3{height:1px;width:65%;right:5%;top:70%}
.bp-node{position:absolute;border:1px solid rgba(255,255,255,.5);border-radius:50%}
.n1{width:18px;height:18px;right:22%;top:19%}.n2{width:10px;height:10px;left:28%;top:59%}
.hero-card-inner{
  position:absolute;left:34px;right:34px;bottom:34px;
  padding:28px;border-radius:22px;background:rgba(5,27,43,.54);
  backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.1)
}
.hero-card h2{font-size:36px;line-height:1.25;margin:0 0 9px}
.hero-card p{margin:0 0 14px;color:#cbe6f5;font-weight:800;letter-spacing:.09em}
.hero-card ul{margin:0;padding-left:20px;color:#eef8fd}

.section{padding:96px 0}
.section-head{text-align:center;max-width:760px;margin:0 auto 46px}
.section-head.compact{margin-bottom:34px}
.section-head h2,.about h2,.monthly h2,.contact h2{
  font-size:clamp(30px,4vw,48px);line-height:1.25;letter-spacing:-.035em;margin:10px 0 14px
}
.section-head p{color:var(--muted);margin:0;font-size:16px}
.intro-strip{background:#fff}
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.adv-card{
  padding:26px;border-radius:18px;border:1px solid var(--line);background:#fff;
  transition:.2s ease
}
.adv-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.adv-no{font-size:12px;color:var(--blue);font-weight:900;letter-spacing:.12em}
.adv-card h3{margin:9px 0 8px;font-size:20px}
.adv-card p{margin:0;color:var(--muted);font-size:14px}

.services{background:var(--paper)}
.service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.service-card{
  background:white;border:1px solid var(--line);border-radius:var(--radius);padding:32px;
  position:relative;overflow:hidden;transition:.25s ease
}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.service-card:after{
  content:"";position:absolute;width:150px;height:150px;border-radius:50%;
  right:-65px;top:-70px;background:rgba(143,199,231,.12)
}
.service-icon{
  width:52px;height:52px;border-radius:14px;background:var(--ice);color:var(--navy);
  display:grid;place-items:center;font-weight:900;margin-bottom:18px
}
.service-card h3{font-size:25px;margin:0 0 8px}
.service-card p{color:var(--muted);margin:0 0 12px}
.service-card ul{margin:0;padding-left:20px;color:#385366}
.service-card-wide{grid-column:1/-1;display:grid;grid-template-columns:auto 1.1fr 1fr;align-items:center;gap:24px}
.service-card-wide .service-icon{margin:0}
.wide-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.wide-list span{
  background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:11px 14px;font-size:14px;font-weight:700
}

.monthly{padding-top:0;background:var(--paper)}
.monthly-card{
  background:linear-gradient(130deg,var(--navy),#175d8b);
  color:white;border-radius:28px;padding:46px 50px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:0 26px 60px rgba(12,52,83,.2)
}
.kicker.light{color:#abd8ef}
.monthly h2{font-size:36px;margin-top:10px}
.monthly p{max-width:760px;margin:0;color:#d8ecf6}
.process{background:#fff}
.process-line{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
.process-line:before{
  content:"";position:absolute;left:8%;right:8%;top:27px;height:1px;background:#c7dce8
}
.step{position:relative;text-align:center;padding:0 12px}
.step-no{
  width:54px;height:54px;margin:0 auto 18px;border-radius:50%;position:relative;z-index:1;
  display:grid;place-items:center;background:var(--navy);color:white;font-weight:900;
  border:7px solid white;box-shadow:0 0 0 1px #c7dce8
}
.step h3{margin:0 0 8px;font-size:20px}
.step p{margin:0;color:var(--muted);font-size:14px}

.about{background:var(--ice)}
.about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:center}
.about-copy p{color:var(--muted);font-size:17px}
.about-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.about-points span{
  background:white;border:1px solid #cae0eb;border-radius:999px;padding:8px 14px;font-weight:700;font-size:13px;color:#315a74
}
.poster-panel{
  background:white;padding:14px;border-radius:24px;box-shadow:var(--shadow)
}
.poster-panel img{border-radius:14px}

.contact{background:#fff}
.contact-card{
  background:linear-gradient(140deg,#0a2f4b,#135c89);color:white;
  border-radius:32px;padding:54px;display:grid;grid-template-columns:1fr auto;gap:48px;align-items:center
}
.contact-copy p{color:#d7eaf4;max-width:700px}
.contact-actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 14px}
.contact-copy small{color:#abd8ef}
.qr-box{
  width:240px;background:white;color:var(--ink);padding:16px;border-radius:22px;text-align:center
}
.qr-box img{border-radius:12px;margin-bottom:10px}
.qr-box strong,.qr-box span{display:block}
.qr-box span{font-size:12px;color:var(--muted)}

.floating-line{
  position:fixed;right:20px;bottom:20px;z-index:45;
  width:62px;height:62px;border-radius:50%;display:grid;place-items:center;
  background:#06c755;color:white;font-weight:900;font-size:13px;
  box-shadow:0 14px 38px rgba(0,0,0,.2);border:4px solid white
}
.site-footer{background:#071d2d;color:#b8cfdd;padding:28px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
.footer-inner strong{color:white;display:block}
.footer-inner span,.footer-inner p{font-size:12px;margin:0}
.toast{
  position:fixed;left:50%;bottom:30px;z-index:100;transform:translate(-50%,18px);
  background:#071d2d;color:white;padding:10px 16px;border-radius:999px;font-size:13px;
  opacity:0;pointer-events:none;transition:.25s ease
}
.toast.show{opacity:1;transform:translate(-50%,0)}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

@media (max-width: 980px){
  .main-nav{display:none;position:absolute;left:20px;right:20px;top:72px;background:white;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:6px}
  .main-nav.open{display:flex}
  .main-nav a{padding:10px 12px}
  .menu-btn{display:block}
  .hero-content{grid-template-columns:1fr;gap:42px;padding-top:78px}
  .hero-card{min-height:390px}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .process-line{grid-template-columns:repeat(2,1fr);gap:36px 18px}
  .process-line:before{display:none}
  .about-grid{grid-template-columns:1fr}
}
@media (max-width: 700px){
  .container{width:min(100% - 28px,1160px)}
  .brand small{display:none}
  .brand strong{font-size:16px}
  .hero{min-height:auto}
  .hero-content{padding:62px 0}
  .hero h1{font-size:42px}
  .lead{font-size:16px}
  .trust-row{grid-template-columns:1fr;gap:12px}
  .hero-card{min-height:360px}
  .hero-card-inner{left:18px;right:18px;bottom:18px;padding:22px}
  .hero-card h2{font-size:30px}
  .section{padding:72px 0}
  .adv-grid,.service-grid,.process-line{grid-template-columns:1fr}
  .service-card-wide{grid-column:auto;display:block}
  .service-card-wide .service-icon{margin-bottom:18px}
  .wide-list{grid-template-columns:1fr}
  .monthly-card{padding:34px 26px;display:block}
  .monthly-card .btn{margin-top:22px}
  .contact-card{grid-template-columns:1fr;padding:34px 24px}
  .qr-box{width:100%;max-width:260px}
  .footer-inner{display:block}
  .footer-inner p{margin-top:12px}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .btn,.adv-card,.service-card{transition:none}
}


/* V2: Portfolio / case showcase */
.cases{
  background:#fff;
  position:relative;
}
.cases:before{
  content:"";position:absolute;inset:0 0 auto 0;height:280px;
  background:linear-gradient(180deg,#f2f8fc 0%,rgba(242,248,252,0) 100%);
  pointer-events:none
}
.cases .container{position:relative}
.case-feature{
  display:grid;grid-template-columns:.8fr 1.2fr;gap:38px;align-items:center;
  padding:34px;border:1px solid var(--line);border-radius:28px;background:#fff;
  box-shadow:var(--shadow);margin-bottom:24px
}
.case-feature-copy h3,.case-body h3{margin:8px 0 12px;line-height:1.35}
.case-feature-copy h3{font-size:32px}
.case-feature-copy p,.case-body p{color:var(--muted);margin:0}
.case-label{
  display:inline-block;color:var(--blue);font-size:12px;font-weight:900;letter-spacing:.08em
}
.case-points{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}
.case-points span{
  padding:7px 11px;border-radius:999px;background:var(--ice);border:1px solid #d4e7f1;
  color:#315a74;font-size:12px;font-weight:800
}
.case-image-button,.case-thumb{
  border:0;padding:0;background:none;cursor:zoom-in;width:100%;position:relative
}
.case-image-button img{
  width:100%;border-radius:18px;border:1px solid var(--line);
  box-shadow:0 16px 40px rgba(12,52,83,.12)
}
.case-image-button span{
  position:absolute;right:12px;bottom:12px;background:rgba(7,29,45,.84);color:white;
  border-radius:999px;padding:6px 10px;font-size:11px;font-weight:800
}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case-card{
  overflow:hidden;border:1px solid var(--line);border-radius:22px;background:white;
  transition:.22s ease
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.case-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--paper)}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.case-card:hover .case-thumb img{transform:scale(1.02)}
.case-body{padding:24px}
.case-body h3{font-size:20px}
.case-body p{font-size:14px}
.case-note{
  margin-top:24px;padding:16px 20px;border-radius:14px;background:var(--paper);
  border:1px solid var(--line);display:flex;gap:12px;align-items:flex-start;color:var(--muted);font-size:13px
}
.case-note strong{color:var(--navy);white-space:nowrap}
.contact-meta{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:10px}
.contact-meta span{color:#abd8ef;font-size:12px}
.floating-line span{line-height:1.05;text-align:center}
.floating-line small{font-size:9px;font-weight:800}
.lightbox{
  position:fixed;inset:0;z-index:120;background:rgba(5,17,26,.92);
  display:none;align-items:center;justify-content:center;padding:32px
}
.lightbox.open{display:flex}
.lightbox img{max-width:min(1500px,94vw);max-height:90vh;border-radius:14px;background:white}
.lightbox-close{
  position:absolute;top:16px;right:22px;width:44px;height:44px;border:0;border-radius:50%;
  background:white;color:var(--navy);font-size:29px;line-height:1;cursor:pointer
}
@media (max-width: 900px){
  .case-feature{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
}
@media (max-width: 700px){
  .case-feature{padding:22px}
  .case-feature-copy h3{font-size:27px}
  .case-note{display:block}
  .case-note strong{display:block;margin-bottom:4px}
}


.seo-entry{background:#f7fbfd}.seo-card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.seo-card{display:block;background:white;border:1px solid var(--line);border-radius:20px;padding:25px;transition:.22s ease}.seo-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#bfd9e7}.seo-card>span{font-size:12px;color:var(--blue);font-weight:900;letter-spacing:.12em}.seo-card h3{font-size:21px;line-height:1.35;margin:10px 0}.seo-card p{font-size:14px;color:var(--muted);margin:0 0 18px}.seo-card strong{font-size:13px;color:var(--navy)}
.inner-hero{background:linear-gradient(135deg,#f8fcfe,#e5f3fa);border-bottom:1px solid var(--line);padding:82px 0 70px}.breadcrumb{font-size:12px;color:var(--muted);margin-bottom:18px}.breadcrumb a{color:var(--blue)}.inner-hero h1{font-size:clamp(38px,5vw,62px);line-height:1.16;margin:0 0 18px;letter-spacing:-.04em}.inner-hero p{font-size:18px;color:#496578;max-width:800px;margin:0}.inner-hero .hero-actions{margin-top:28px}.content-wrap{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:42px;align-items:start}.article-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:38px}.article-card h2{font-size:30px;line-height:1.3;margin:0 0 16px}.article-card h3{font-size:22px;margin:30px 0 12px}.article-card p,.article-card li{color:#4f6676}.article-card ul{padding-left:22px}.sidebar-card{position:sticky;top:100px;background:var(--navy);color:#fff;border-radius:22px;padding:26px;box-shadow:var(--shadow)}.sidebar-card h3{margin:0 0 10px;font-size:22px}.sidebar-card p{color:#d5e9f4;font-size:14px}.sidebar-card .btn{width:100%;margin-top:12px}.sidebar-card .meta{font-size:12px;color:#acd6eb;margin-top:14px}.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:26px 0}.feature-box{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:16px}.feature-box strong{display:block;color:var(--navy);margin-bottom:4px}.feature-box span{font-size:13px;color:var(--muted)}.faq{margin-top:36px}.faq details{border-top:1px solid var(--line);padding:16px 0}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;font-weight:800;color:var(--navy)}.faq p{margin:10px 0 0}.related-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.related-links a{padding:8px 12px;border:1px solid var(--line);border-radius:999px;font-size:13px;font-weight:700;color:#315a74;background:white}@media (max-width:980px){.seo-card-grid{grid-template-columns:repeat(2,1fr)}.content-wrap{grid-template-columns:1fr}.sidebar-card{position:static}}@media (max-width:650px){.seo-card-grid,.feature-list{grid-template-columns:1fr}.article-card{padding:26px}.inner-hero{padding:58px 0 50px}}

/* V3.1 contact layout refinement */
.contact-card{grid-template-columns:minmax(0,1fr) 230px;align-items:center}
.contact-copy{min-width:0}
.contact-copy h2{max-width:760px}
.contact-copy p{max-width:760px}
.contact-meta{display:grid;grid-template-columns:repeat(3,max-content);gap:8px 22px;align-items:center;margin-top:14px}
.contact-meta span{position:relative;white-space:nowrap}
.contact-meta span:not(:last-child)::after{content:"";position:absolute;right:-12px;top:50%;width:1px;height:12px;background:rgba(255,255,255,.24);transform:translateY(-50%)}
.qr-box{width:230px;padding:18px}
.qr-box img{width:100%;aspect-ratio:1/1;object-fit:contain;background:#fff;border-radius:10px;margin:0 0 10px}
@media (max-width:760px){
  .contact-card{grid-template-columns:1fr}
  .contact-meta{grid-template-columns:1fr;gap:5px}
  .contact-meta span:not(:last-child)::after{display:none}
  .qr-box{width:min(100%,260px)}
}