:root{
  --navy:#0d2438; --navy2:#123454; --navy3:#0a1c2c;
  --ink:#12181f; --steel:#55636f; --line:#e3e6e1; --bg:#f6f7f4;
  --accent:#00a0e8; --accent-dark:#0080bd;
  --line-green:#06c755;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:'Noto Sans TC','Barlow Condensed',sans-serif;background:var(--bg);color:var(--ink);overflow-x:hidden;}
body.nav-open{overflow:hidden;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--accent);}
img{max-width:100%;}
.eyebrow{font-family:'Barlow Condensed',sans-serif;letter-spacing:.28em;text-transform:uppercase;font-size:13px;color:var(--accent);font-weight:700;margin-bottom:14px;}
.wrap{max-width:1360px;margin:0 auto;padding:0 32px;}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ===== header ===== */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);}
.header-inner{max-width:1360px;margin:0 auto;padding:16px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.logo img{height:48px;width:auto;object-fit:contain;display:block;}
.nav-desktop{display:flex;gap:36px;font-size:15px;font-weight:500;}
.nav-desktop a{color:#3c4750;}
.nav-desktop a.active{color:var(--navy);border-bottom:2px solid var(--accent);padding-bottom:4px;}
.header-right{display:flex;align-items:center;gap:20px;}
.phone{font-family:'Barlow Condensed',sans-serif;font-weight:700;font-size:20px;color:var(--navy);}
.btn-cta{display:inline-block;background:var(--accent);color:#fff;padding:14px 30px;font-weight:700;font-size:15px;border-radius:2px;transition:background .2s;}
.btn-cta:hover{background:var(--accent-dark);color:#fff;}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:10px;flex-direction:column;gap:5px;}
.nav-toggle span{width:26px;height:2px;background:var(--navy);display:block;transition:transform .25s,opacity .2s;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-panel{display:none;flex-direction:column;background:#fff;border-top:1px solid var(--line);}
.mobile-panel.open{display:flex;}
.mobile-panel a{padding:16px 24px;border-bottom:1px solid var(--line);font-size:15px;}
.mobile-panel a.active{color:var(--accent);font-weight:700;}

/* ===== hero ===== */
.hero{position:relative;background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 55%,var(--navy3) 100%);color:#fff;overflow:hidden;}
.hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.035) 0 1px,transparent 1px 120px);pointer-events:none;}
.hero-grid{max-width:1360px;margin:0 auto;padding:96px 32px 84px;display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;position:relative;}
.hero-title{font-size:clamp(28px,4vw,50px);line-height:1.3;font-weight:900;margin:0 0 24px;}
.hero-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:28px 40px;margin-bottom:36px;}
.hero-meta-label{font-size:13px;color:#9db2c4;margin-bottom:6px;letter-spacing:.05em;}
.hero-meta-text{font-size:15.5px;line-height:1.8;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}
.btn-outline{display:inline-block;padding:14px 30px;border:1px solid rgba(255,255,255,.4);border-radius:2px;font-weight:700;font-size:15px;color:#fff;transition:background .2s,border-color .2s;}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}
.hero-image-wrap{position:relative;}
.hero-image-wrap::before{content:"";position:absolute;inset:-24px;border:1px solid rgba(255,255,255,.18);pointer-events:none;}
.hero-image-wrap img{width:100%;height:auto;display:block;box-shadow:0 30px 70px rgba(0,0,0,.45);}

/* ===== inner page hero ===== */
.page-hero{position:relative;background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 55%,var(--navy3) 100%);color:#fff;overflow:hidden;}
.page-hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.035) 0 1px,transparent 1px 120px);pointer-events:none;}
.page-hero-inner{max-width:1360px;margin:0 auto;padding:72px 32px 64px;position:relative;}
.breadcrumb{font-size:13px;color:#9db2c4;margin-bottom:14px;}
.breadcrumb a{color:#9db2c4;}
.breadcrumb span{color:#fff;}
.page-hero h1{font-size:clamp(26px,3.6vw,44px);line-height:1.35;font-weight:900;margin:0 0 16px;}
.page-hero .wordmark{height:34px;width:auto;margin-bottom:18px;display:block;}

/* ===== feature strip ===== */
.feature-strip{background:#fff;border-bottom:1px solid var(--line);}
.feature-grid{max-width:1360px;margin:0 auto;padding:56px 32px;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:36px;}
.feature-card{border-top:3px solid var(--accent);padding-top:18px;}
.feature-card h3{font-weight:900;font-size:19px;margin:0 0 10px;}
.feature-card p{color:var(--steel);font-size:14.5px;line-height:1.8;margin:0;}

/* ===== why section ===== */
.why-section{background:var(--bg);}
.why-grid{max-width:1360px;margin:0 auto;padding:96px 32px;display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:center;}
.why-image-wrap{position:relative;}
.why-image-wrap::before{content:"";position:absolute;inset:20px -20px -20px 20px;background:var(--accent);z-index:0;}
.why-image-wrap img{position:relative;z-index:1;width:100%;height:auto;display:block;box-shadow:0 24px 50px rgba(13,36,56,.18);}
.why-title{font-size:clamp(24px,3vw,38px);font-weight:900;line-height:1.42;margin:0 0 22px;color:var(--navy);}
.why-text{font-size:15.5px;line-height:1.9;color:#3c4750;margin:0 0 40px;}
.why-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:28px 40px;}
.why-item{display:flex;gap:16px;}
.why-num{font-family:'Barlow Condensed',sans-serif;font-weight:700;font-size:34px;line-height:1;color:var(--accent);flex:none;}
.why-item h4{font-weight:700;font-size:16px;margin:0 0 6px;}
.why-item p{font-size:14px;line-height:1.8;color:var(--steel);margin:0;}

/* ===== video section ===== */
.video-section{background:#fff;border-top:1px solid var(--line);}
.video-inner{max-width:1360px;margin:0 auto;padding:96px 32px;}
.video-head{text-align:center;max-width:860px;margin:0 auto 52px;}
.video-head h2{font-size:clamp(24px,3vw,36px);font-weight:900;line-height:1.4;margin:0 0 16px;color:var(--navy);}
.video-head > p:last-child{font-size:16px;line-height:1.9;color:#3c4750;margin:0;}
.video-intro-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:32px;margin-bottom:56px;}
.video-intro-item{background:var(--bg);border-left:3px solid var(--accent);padding:28px 30px;}
.video-intro-item h3{font-weight:900;font-size:18px;margin:0 0 12px;color:var(--navy);}
.video-intro-item p{font-size:14.5px;line-height:1.95;color:var(--steel);margin:0;}
.video-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:28px;}
.video-card{margin:0;}
.video-thumb{position:relative;display:block;width:100%;padding:0;border:0;background:#000;cursor:pointer;overflow:hidden;aspect-ratio:16/9;}
.video-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease,opacity .25s ease;}
.video-thumb:hover img,.video-thumb:focus-visible img{transform:scale(1.04);opacity:.85;}
.video-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none;}
.video-play svg{width:68px;height:48px;filter:drop-shadow(0 4px 14px rgba(0,0,0,.45));transition:transform .2s ease;}
.video-play .yt-bg{fill:#212121;opacity:.8;transition:fill .2s ease,opacity .2s ease;}
.video-thumb:hover .video-play svg,.video-thumb:focus-visible .video-play svg{transform:scale(1.08);}
.video-thumb:hover .video-play .yt-bg,.video-thumb:focus-visible .video-play .yt-bg{fill:#ff0000;opacity:1;}
.video-card iframe{width:100%;aspect-ratio:16/9;display:block;border:0;background:#000;}
.video-title{font-size:15px;font-weight:700;line-height:1.65;margin:14px 0 0;color:var(--navy);}
.video-more{text-align:center;margin-top:44px;}
.video-more a{font-weight:700;font-size:15px;color:var(--accent);}

/* ===== stats ===== */
.stats-section{background:var(--navy);color:#fff;}
.stats-grid{max-width:1360px;margin:0 auto;padding:56px 32px;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:32px;text-align:center;}
.stat-num{font-family:'Barlow Condensed',sans-serif;font-weight:700;font-size:clamp(30px,4vw,44px);color:var(--accent);}
.stat-label{font-size:14px;color:#a9bbc9;margin-top:8px;}
/* single highlighted stat */
.stats-grid.single{grid-template-columns:1fr;padding:80px 32px;}
.stats-grid.single .stat-num{font-size:clamp(48px,8vw,88px);line-height:1.02;letter-spacing:.005em;}
.stats-grid.single .stat-label{font-size:clamp(15px,2vw,20px);font-weight:700;color:#e2ecf4;letter-spacing:.16em;margin-top:20px;}
.stats-grid.single .stat-label::after{content:"";display:block;width:64px;height:3px;background:var(--accent);margin:22px auto 0;}

/* ===== products ===== */
.products-section{background:#fff;}
.products-head{text-align:center;margin-bottom:56px;padding:96px 24px 0;}
.products-head h2{font-size:clamp(24px,3vw,36px);font-weight:900;margin:0;color:var(--navy);}
.products-grid{max-width:1360px;margin:0 auto;padding:0 32px 96px;display:grid;grid-template-columns:repeat(auto-fit,minmax(380px,1fr));gap:40px;}
.product-card{display:block;background:var(--bg);border:1px solid var(--line);overflow:hidden;transition:box-shadow .25s,transform .25s;}
.product-card:hover{box-shadow:0 20px 44px rgba(13,36,56,.14);transform:translateY(-3px);}
.product-card img{width:100%;height:320px;object-fit:cover;display:block;}
.product-body{padding:32px;}
.product-tag{font-size:13px;color:var(--accent);font-weight:700;margin-bottom:8px;letter-spacing:.05em;}
.product-sub{font-size:15px;color:#3c4750;margin-bottom:18px;}
.product-specs{font-size:14px;line-height:2;color:var(--steel);}
.product-link{margin-top:20px;font-weight:700;color:var(--navy);}

/* ===== content sections (inner pages) ===== */
.content-section{background:#fff;}
.content-section.alt{background:var(--bg);}
.content-grid{max-width:1360px;margin:0 auto;padding:96px 32px;display:grid;gap:64px;align-items:center;}
.content-grid.cols-105{grid-template-columns:1.05fr .95fr;}
.content-grid.cols-95{grid-template-columns:.95fr 1.05fr;align-items:start;}
.content-text h2{font-size:clamp(22px,2.8vw,34px);font-weight:900;line-height:1.5;margin:0 0 24px;color:var(--navy);}
.content-text p{font-size:15.5px;line-height:1.95;color:#3c4750;margin:0 0 20px;}
.content-text p.strong{font-size:16px;color:var(--navy);font-weight:700;}
.content-image{position:relative;}
.content-image::before{content:"";position:absolute;inset:20px -20px -20px 20px;background:var(--accent);z-index:0;}
.content-image img{position:relative;z-index:1;width:100%;height:auto;display:block;box-shadow:0 24px 50px rgba(13,36,56,.18);}
.cards-head{text-align:center;margin-bottom:56px;padding:96px 24px 0;}
.cards-head h2{font-size:clamp(24px,3vw,36px);font-weight:900;margin:0;color:var(--navy);}
.cards-grid{max-width:1360px;margin:0 auto;padding:0 32px 96px;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:32px;}
.card{background:#fff;border-top:3px solid var(--accent);padding:36px 30px;box-shadow:0 12px 30px rgba(13,36,56,.06);}
.card h3{font-weight:900;font-size:19px;margin:0 0 14px;color:var(--navy);}
.card p{color:var(--steel);font-size:14.5px;line-height:1.9;margin:0;}

/* ===== spec table ===== */
.spec-list{display:flex;flex-direction:column;}
.spec-row{display:flex;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--line);gap:16px;}
.spec-row:last-child{border-bottom:none;}
.spec-row .spec-k{color:var(--steel);flex:none;}
.spec-row .spec-v{font-weight:700;text-align:right;}
.spec-row .spec-note{display:block;font-weight:400;font-size:12.5px;color:var(--steel);margin-top:4px;}
.spec-block{margin-top:32px;}
.spec-block p{font-size:14.5px;line-height:2;color:#3c4750;margin:0;}

/* ===== contact cards ===== */
.contact-grid{max-width:1360px;margin:0 auto;padding:96px 32px;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:32px;}
.contact-card{background:var(--bg);border-top:3px solid var(--accent);padding:36px 30px;}
.contact-card .label{font-size:13px;color:var(--steel);margin-bottom:10px;}
.contact-card .big{font-size:clamp(20px,2.4vw,26px);font-weight:900;color:var(--navy);margin-bottom:4px;word-break:break-word;}
.contact-card .mid{font-size:16px;font-weight:700;color:var(--navy);margin-bottom:10px;}
.contact-card .small{font-size:13px;color:var(--steel);}
.contact-card .qr{width:120px;height:120px;background:#fff;padding:6px;display:block;}

/* ===== cta banner ===== */
.cta-banner{background:linear-gradient(120deg,var(--navy),var(--navy2));color:#fff;}
.cta-inner{max-width:1000px;margin:0 auto;padding:88px 32px;text-align:center;}
.cta-inner.wide{max-width:1100px;}
.cta-inner h2{font-size:clamp(20px,2.6vw,32px);line-height:1.6;font-weight:700;margin:0 0 32px;}
.cta-inner h2.tight{font-size:clamp(22px,3vw,34px);font-weight:900;line-height:1.4;}

/* ===== footer ===== */
.site-footer{background:var(--navy3);color:#c4d0da;}
.footer-grid{max-width:1360px;margin:0 auto;padding:72px 32px 40px;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;}
.footer-brand img{height:46px;width:auto;object-fit:contain;margin-bottom:20px;display:block;background:#fff;padding:7px 10px;border-radius:3px;}
.footer-brand p{font-size:14px;line-height:1.9;max-width:340px;color:#8fa3b3;margin:0;}
.footer-col h4{font-weight:700;color:#fff;margin:0 0 18px;letter-spacing:.05em;font-size:15px;}
.footer-phone{font-size:20px;font-weight:700;color:#fff;margin-bottom:4px;}
.footer-phone a:hover,.footer-mail a:hover{color:var(--accent);}
.footer-hours{font-size:13px;color:#8fa3b3;margin-bottom:16px;}
.footer-mail{font-size:15px;color:#fff;font-weight:700;word-break:break-word;}
.footer-support{font-size:13px;color:#8fa3b3;}
.footer-qr{width:110px;height:110px;background:#fff;padding:6px;display:block;}
.footer-nav{display:flex;flex-direction:column;gap:10px;font-size:14px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);}
.footer-bottom-inner{max-width:1360px;margin:0 auto;padding:22px 32px;font-size:13px;color:#6c8090;}

/* ===== floating LINE button ===== */
.float-line{position:fixed;right:24px;bottom:28px;z-index:900;display:inline-flex;align-items:center;gap:10px;
  background:var(--line-green);color:#fff;padding:13px 22px 13px 17px;border-radius:999px;
  font-weight:700;font-size:15px;line-height:1;box-shadow:0 10px 26px rgba(6,199,85,.38);
  transition:transform .2s ease,box-shadow .2s ease;}
.float-line:hover,.float-line:focus-visible{color:#fff;transform:translateY(-3px);box-shadow:0 16px 34px rgba(6,199,85,.5);}
.float-line svg{width:26px;height:26px;flex:none;fill:#fff;}

/* ===== responsive ===== */
@media (max-width:1180px){
  .hero-grid{gap:40px;padding:80px 28px 72px;}
  .why-grid{gap:48px;padding:80px 28px;}
  .content-grid{gap:48px;padding:80px 28px;}
  .nav-desktop{gap:24px;font-size:14.5px;}
  .header-right{gap:14px;}
  .btn-cta{padding:13px 22px;}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;padding:72px 28px 64px;gap:44px;}
  .hero-image-wrap{max-width:620px;}
  .why-grid{grid-template-columns:1fr;}
  .content-grid.cols-105,.content-grid.cols-95{grid-template-columns:1fr;align-items:start;}
  .content-image{max-width:620px;}
  .products-grid{grid-template-columns:1fr;max-width:640px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;padding:64px 28px 32px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-brand p{max-width:560px;}
}
@media (max-width:880px){
  .nav-desktop{display:none!important;}
  .header-right{display:none!important;}
  .nav-toggle{display:flex!important;}
  .grid-2{grid-template-columns:1fr!important;}
  .header-inner{padding:12px 20px;}
  .logo img{height:40px;}
}
@media (max-width:768px){
  .hero-grid{padding:56px 20px 52px;gap:36px;}
  .hero-title{line-height:1.35;margin-bottom:20px;}
  .hero-meta{grid-template-columns:1fr;gap:20px;margin-bottom:30px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn-cta,.hero-actions .btn-outline{flex:1 1 160px;text-align:center;padding:14px 18px;}
  .hero-image-wrap::before{inset:-12px;}
  .hero-image-wrap img{box-shadow:0 16px 36px rgba(0,0,0,.4);}
  .page-hero-inner{padding:48px 20px 44px;}
  .feature-grid{padding:44px 20px;gap:28px;}
  .why-grid{padding:56px 20px;gap:40px;}
  .why-list{gap:24px;}
  .why-text{margin-bottom:28px;}
  .why-image-wrap::before{inset:14px -14px -14px 14px;}
  .video-inner{padding:56px 20px;}
  .video-head{margin-bottom:36px;}
  .video-intro-grid{gap:20px;margin-bottom:36px;}
  .video-intro-item{padding:22px 22px;}
  .video-grid{gap:24px;}
  .video-play svg{width:56px;height:40px;}
  .video-more{margin-top:32px;}
  .stats-grid{padding:44px 20px;gap:28px;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));}
  .stats-grid.single{padding:56px 20px;}
  .stats-grid.single .stat-label{margin-top:14px;}
  .stats-grid.single .stat-label::after{margin-top:18px;}
  .products-head,.cards-head{padding:64px 20px 0;margin-bottom:36px;}
  .products-grid{padding:0 20px 64px;gap:28px;}
  .product-card img{height:230px;}
  .product-body{padding:24px;}
  .content-grid{padding:56px 20px;gap:40px;}
  .content-image::before{inset:14px -14px -14px 14px;}
  .cards-grid{padding:0 20px 64px;gap:24px;}
  .card{padding:28px 24px;}
  .contact-grid{padding:56px 20px;gap:24px;}
  .cta-inner{padding:56px 20px;}
  .cta-inner h2{margin-bottom:26px;}
  .footer-grid{padding:52px 20px 28px;gap:36px;}
  .footer-bottom-inner{padding:18px 20px;}
  .float-line{right:16px;bottom:16px;padding:14px;gap:0;border-radius:50%;}
  .float-line .float-line-text{display:none;}
}
@media (max-width:520px){
  .hero-image-wrap::before{display:none;}
  .why-image-wrap::before,.content-image::before{display:none;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .spec-row{flex-direction:column;gap:4px;}
  .spec-row .spec-v{text-align:left;}
}