:root{
  --blue:#0b2f5b;
  --blue2:#155f96;
  --cyan:#3fb7d7;
  --ink:#172033;
  --gray:#344054;
  --muted:#667085;
  --line:#d7e2ef;
  --light:#f4f8fb;
  --soft:#eaf3f8;
  --white:#ffffff;
  --shadow:0 18px 45px rgba(11,47,91,.12);
  --radius:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans TC","Microsoft JhengHei",Arial,sans-serif;
  color:var(--gray);
  background:#ffffff;
  line-height:1.72;
  letter-spacing:.01em;
}
img,svg,video{max-width:100%;height:auto}
a{color:var(--blue2);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
.container{width:min(1120px,calc(100% - 40px));margin:auto}
.site-header{
  position:sticky;
  top:0;
  z-index:15;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid rgba(215,226,239,.95);
  backdrop-filter:saturate(140%) blur(12px);
  box-shadow:0 8px 28px rgba(12,38,69,.06);
}
.nav-wrap{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:8px 0}
.brand{
  font-weight:900;
  color:var(--blue);
  font-size:1.08rem;
  letter-spacing:.04em;
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.brand:before{
  content:"";
  width:16px;
  height:16px;
  flex:0 0 16px;
  border-radius:50%;
  background:radial-gradient(circle,#ffffff 0 20%,#55c7e8 22% 45%,#0b2f5b 48% 100%);
  box-shadow:0 0 18px rgba(63,183,215,.55);
}
.top-nav{display:flex;gap:10px;flex-wrap:wrap;font-size:.94rem;justify-content:flex-end}
.top-nav a{
  color:#344054;
  padding:8px 10px;
  border-radius:999px;
  transition:.18s ease;
}
.top-nav a:hover{background:#eef6fb;color:var(--blue);text-decoration:none}

/* Hero: 全深色背景，避免白字落在白底 */
.hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(circle at 82% 18%,rgba(63,183,215,.28),transparent 32%),
    radial-gradient(circle at 18% 0%,rgba(255,255,255,.10),transparent 28%),
    linear-gradient(135deg,#061c36 0%,#0b2f5b 55%,#102f50 100%);
  padding:88px 0 64px;
  border-bottom:1px solid var(--line);
}
.hero:before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(110deg,transparent 0 52%,rgba(63,183,215,.12) 52.2% 53%,transparent 53.2% 100%),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(180deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:auto,56px 56px,56px 56px;
  pointer-events:none;
}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(300px,.85fr);gap:36px;align-items:center}
.eyebrow{color:var(--blue2);font-weight:900;margin:0 0 12px;letter-spacing:.08em}
.hero .eyebrow{color:#b9ecff}
h1{
  font-size:clamp(2rem,4vw,3.65rem);
  line-height:1.16;
  margin:.1em 0 .35em;
  color:var(--blue);
  letter-spacing:-.025em;
}
.hero h1{
  color:#ffffff;
  text-shadow:0 10px 30px rgba(0,0,0,.20);
}
.lead{font-size:1.12rem;color:#475467;max-width:760px}
.hero .lead{color:#e7f3fa}
.index-lead{max-width:850px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.primary-cta,.secondary-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:14px;
  padding:13px 18px;
  min-height:48px;
  font-weight:900;
  text-decoration:none!important;
  transition:.18s ease;
  text-align:center;
}
.primary-cta{
  background:#ffffff;
  color:var(--blue);
  box-shadow:0 14px 30px rgba(0,0,0,.16);
}
.primary-cta:hover{transform:translateY(-1px);box-shadow:0 18px 34px rgba(0,0,0,.20)}
.secondary-cta{
  background:rgba(255,255,255,.12);
  color:#ffffff;
  border:1px solid rgba(255,255,255,.45);
  backdrop-filter:blur(8px);
}
.secondary-cta:hover{background:rgba(255,255,255,.18)}
.store-cta{background:rgba(255,255,255,.16)}
.quote-card{
  background:#ffffff;
  border:1px solid rgba(255,255,255,.75);
  border-radius:var(--radius);
  box-shadow:0 28px 60px rgba(4,25,49,.24);
  padding:30px;
  position:relative;
  overflow:hidden;
  color:var(--gray);
}
.quote-card:before{
  content:"";
  position:absolute;
  width:180px;
  height:180px;
  right:-70px;
  top:-70px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(63,183,215,.24),transparent 68%);
}
.quote-card span{display:block;color:var(--muted);font-weight:800;margin-bottom:8px;position:relative}
.quote-card strong{display:block;font-size:1.35rem;color:var(--blue);line-height:1.45;position:relative}
.quote-card p{color:var(--muted);margin-bottom:0;position:relative}

.section{padding:64px 0}
.section.alt{
  background:linear-gradient(180deg,#f4f8fb 0%,#eef5fa 100%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
h2{
  font-size:clamp(1.38rem,2.1vw,2.05rem);
  line-height:1.28;
  margin:0 0 16px;
  color:var(--blue);
  letter-spacing:-.01em;
}
h3{font-size:1.12rem;margin:0 0 8px;color:#1d2b3a}
p{margin-top:0}
.two-col{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);gap:24px}
.card{
  background:#ffffff;
  border:1px solid rgba(215,226,239,.96);
  border-radius:var(--radius);
  padding:30px;
  box-shadow:var(--shadow);
  color:var(--gray);
}
.source-card a{display:inline-block;margin-top:8px;font-weight:900}
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.check-list{padding-left:0;list-style:none;margin:0}
.check-list li{
  padding:12px 0 12px 34px;
  border-bottom:1px solid var(--line);
  position:relative;
}
.check-list li:before{
  content:"";
  position:absolute;
  left:0;
  top:22px;
  width:13px;
  height:13px;
  border-radius:50%;
  background:radial-gradient(circle,#fff 0 25%,var(--cyan) 28% 100%);
  box-shadow:0 0 12px rgba(63,183,215,.45);
}
.table-wrap{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.spec-table{width:100%;border-collapse:collapse;background:#fff;color:var(--gray)}
.spec-table th,.spec-table td{padding:16px 18px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}
.spec-table th{width:230px;background:#f7fbfe;color:var(--blue);font-weight:900}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none}
.spec-note{color:var(--muted);margin-top:14px}
.faq-grid{display:grid;gap:14px}
details{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:16px 18px;
  box-shadow:0 8px 22px rgba(11,47,91,.05);
  color:var(--gray);
}
summary{cursor:pointer;font-weight:900;color:var(--blue)}
details p{margin:10px 0 0}
.notice-box{
  background:#f9fbfd;
  border:1px solid #d9e5ee;
  border-left:4px solid #6e92aa;
  border-radius:14px;
  padding:16px 18px;
  color:#4d5966;
}
.bottom-cta{
  margin-top:28px;
  background:linear-gradient(135deg,#eaf5fb,#ffffff);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:30px;
  box-shadow:var(--shadow);
  color:var(--gray);
}
.bottom-cta .text-link{display:inline-block;margin-left:14px;font-weight:900}
.site-footer{
  background:linear-gradient(135deg,#071b32,#152b43);
  color:#dfe7ef;
  padding:38px 0;
  margin-top:0;
}
.site-footer a{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:28px}
.footer-grid p{margin:.35em 0;color:#d4dde8}
.product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.product-card{
  background:#ffffff;
  border:1px solid var(--line);
  border-radius:18px;
  padding:20px;
  box-shadow:0 10px 26px rgba(11,47,91,.07);
  display:flex;
  flex-direction:column;
  gap:8px;
  transition:.18s ease;
  color:var(--gray);
}
.product-card:hover{
  transform:translateY(-2px);
  border-color:#a8d7e7;
  box-shadow:0 18px 36px rgba(11,47,91,.12);
}
.product-card strong{color:var(--blue);font-size:1.08rem}
.product-card span{color:var(--muted);font-size:.94rem}
.product-card .small-cta{margin-top:auto;font-weight:900;color:var(--blue2)}
.category-title{margin-top:22px}
.source-list{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow);
}
.muted-text{color:var(--muted);font-size:.96rem}

.screen-match{
  background:
    radial-gradient(circle at 88% 16%,rgba(63,183,215,.12),transparent 25%),
    #ffffff;
}
.screen-match p{max-width:980px}
.screen-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:22px}
.screen-card{
  background:linear-gradient(180deg,#ffffff,#f8fbfe);
  border:1px solid var(--line);
  border-radius:18px;
  padding:24px;
  box-shadow:0 10px 28px rgba(11,47,91,.07);
  color:var(--gray);
}
.screen-card h3{color:var(--blue);font-size:1.18rem;margin-bottom:10px}
.screen-card p{color:#4d5966;margin:0 0 14px}
.small-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  padding:10px 14px;
  min-height:42px;
  background:#edf7fb;
  color:var(--blue)!important;
  font-weight:900;
  border:1px solid #cce7f2;
  text-align:center;
}
.promo-offer{padding:26px 0 8px;background:transparent}
.promo-banner{
  position:relative;
  overflow:hidden;
  background:linear-gradient(135deg,#082445 0%,#0f3b6b 58%,#1f6ea2 100%);
  border:1px solid rgba(255,255,255,.14);
  border-radius:22px;
  padding:28px 30px;
  box-shadow:0 20px 46px rgba(8,36,69,.18);
  color:#ffffff;
}
.promo-banner:before{
  content:"";
  position:absolute;
  right:-55px;
  top:-55px;
  width:190px;
  height:190px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.20),transparent 68%);
}
.promo-banner:after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent);
}
.promo-banner > *{position:relative}
.promo-tag{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:7px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.26);
  color:#dff6ff;
  font-weight:900;
  font-size:.9rem;
  letter-spacing:.06em;
  margin-bottom:12px;
}
.promo-banner h2{
  margin:0 0 12px;
  color:#ffffff;
  font-size:clamp(1.35rem,2.5vw,2rem);
  line-height:1.3;
}
.promo-banner p{margin:0;color:#e9f5fb;font-size:1.02rem;max-width:980px}
.promo-banner a{
  color:#ffffff;
  font-weight:900;
  text-decoration:underline;
  text-decoration-color:rgba(255,255,255,.55);
  text-underline-offset:3px;
}

/* 平板 */
@media (max-width:980px){
  .container{width:min(100% - 32px,1120px)}
  .nav-wrap{align-items:flex-start;flex-direction:column;gap:8px;padding:12px 0}
  .top-nav{width:100%;justify-content:flex-start;gap:8px}
  .top-nav a{background:#f4f8fb;border:1px solid #e3edf5}
  .hero{padding:64px 0 46px}
  .hero-grid,.two-col,.split,.footer-grid{grid-template-columns:1fr}
  .quote-card{max-width:640px}
  .product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* 手機 */
@media (max-width:640px){
  body{line-height:1.68}
  .container{width:min(100% - 24px,1120px)}
  .site-header{position:static}
  .brand{font-size:1rem;line-height:1.35}
  .top-nav{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:8px;
    font-size:.9rem;
  }
  .top-nav a{
    display:flex;
    align-items:center;
    justify-content:center;
    min-height:42px;
    text-align:center;
    padding:8px 6px;
  }
  .hero{
    padding:48px 0 36px;
    background:
      radial-gradient(circle at 80% 12%,rgba(63,183,215,.24),transparent 34%),
      linear-gradient(150deg,#061c36 0%,#0b2f5b 100%);
  }
  h1{font-size:clamp(1.9rem,9vw,2.55rem)}
  h2{font-size:1.38rem}
  .lead{font-size:1.02rem}
  .hero-actions{gap:10px;margin-top:22px}
  .primary-cta,.secondary-cta{width:100%;padding:12px 14px}
  .quote-card,.card,.bottom-cta,.promo-banner,.screen-card{padding:20px}
  .section{padding:44px 0}
  .product-grid,.screen-grid{grid-template-columns:1fr}
  .product-card{padding:18px}
  .footer-grid{gap:12px}
  .site-footer{padding:32px 0}
  .promo-offer{padding:18px 0 0}
  .promo-banner p{font-size:.98rem}
}

/* 小手機：規格表改為卡片式，避免橫向閱讀困難 */
@media (max-width:520px){
  .top-nav{grid-template-columns:1fr}
  .table-wrap{border:none;box-shadow:none;background:transparent;overflow:visible}
  .spec-table,.spec-table tbody,.spec-table tr,.spec-table th,.spec-table td{display:block;width:100%}
  .spec-table tr{
    background:#fff;
    border:1px solid var(--line);
    border-radius:14px;
    margin-bottom:12px;
    overflow:hidden;
    box-shadow:0 6px 18px rgba(11,47,91,.05);
  }
  .spec-table th{
    width:100%;
    border-bottom:1px solid var(--line);
    padding:12px 14px;
  }
  .spec-table td{
    border-bottom:none;
    padding:12px 14px;
  }
  .spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}
}