:root {
  --navy:#09182b;
  --navy2:#102947;
  --cyan:#39bde8;
  --ink:#17263a;
  --muted:#607084;
  --line:#dce6ef;
  --green:#06c755;
}

* {
  box-sizing:border-box;
}

html {
  scroll-behavior:smooth;
}

body {
  margin:0;
  font-family:system-ui,-apple-system,"Noto Sans TC","Microsoft JhengHei",sans-serif;
  color:var(--ink);
  background:#f2f6fa;
  line-height:1.65;
}

a {
  color:inherit;
}

button {
  font:inherit;
}

.wrap {
  width:min(1160px,calc(100% - 40px));
  margin:0 auto;
}

.site-head {
  position:relative;
  background:#071526;
  color:#fff;
}

.nav {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:17px 0;
}

.logo {
  font-size:18px;
  font-weight:850;
  letter-spacing:.04em;
}

.logo b {
  color:#6dd4f2;
}

.nav-note {
  color:#b5c8d8;
  font-size:13px;
}

.nav-link {
  font-size:14px;
  text-decoration:none;
  border:1px solid #57778f;
  border-radius:50px;
  padding:8px 15px;
  white-space:nowrap;
}

.hero {
  background:radial-gradient(circle at 72% 34%,#154d7a 0%,transparent 43%),linear-gradient(125deg,#071526,#11314d);
  color:#fff;
  overflow:hidden;
}

.hero-inner {
  display:grid;
  grid-template-columns:1fr .94fr;
  align-items:center;
  gap:48px;
  padding:62px 0 75px;
}

.hero h1 {
  font-size:clamp(32px,4vw,58px);
  line-height:1.22;
  letter-spacing:-.03em;
  margin:20px 0 17px;
}

.hero h1 em {
  color:#78d9ff;
  font-style:normal;
}

.hero .intro {
  font-size:17px;
  color:#cbd9e5;
  max-width:550px;
  margin:0 0 25px;
}

.chips {
  display:flex;
  flex-wrap:wrap;
  gap:9px;
  margin:0 0 25px;
}

.chips span {
  border:1px solid #42627d;
  padding:6px 11px;
  border-radius:8px;
  color:#e5f4fb;
  font-size:13px;
}

.cta {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:12px;
  text-decoration:none;
  background:var(--green);
  color:#fff;
  font-weight:850;
  border-radius:12px;
  padding:15px 25px;
  box-shadow:0 9px 24px rgba(6,199,85,.2);
  transition:transform .2s,filter .2s;
  text-align:center;
}

.cta:hover {
  transform:translateY(-2px);
  filter:brightness(1.05);
}

.line-logo {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:31px;
  height:31px;
  border-radius:50%;
  background:#fff;
  color:#06aa49;
  font-weight:900;
  font-size:11px;
}

.hero-note {
  font-size:12px;
  color:#b5cedc;
  margin-top:12px;
}

.hero-img-wrap {
  background:#0d2237;
  position:relative;
  box-shadow:0 30px 65px rgba(0,0,0,.35);
  border:1px solid #426984;
  border-radius:18px;
  overflow:hidden;
  transform:rotate(1deg);
}

.hero-img-wrap img {
  display:block;
  width:100%;
  height:auto;
}

.hero-img-cap {
  position:absolute;
  bottom:0;
  left:0;
  right:0;
  background:linear-gradient(transparent,rgba(4,15,29,.9));
  padding:32px 16px 14px;
  color:#fff;
  font-size:13px;
  text-align:center;
}

.section {
  padding:66px 0;
}

.section-h {
  text-align:center;
  max-width:750px;
  margin:0 auto 34px;
}

.kicker {
  font-size:13px;
  letter-spacing:.12em;
  font-weight:850;
  color:#1383ad;
}

.section h2 {
  font-size:clamp(25px,3vw,36px);
  line-height:1.35;
  margin:10px 0;
}

.section-h p {
  color:var(--muted);
  margin:0;
}

.features {
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
}

.feature {
  border:1px solid #e0e8f0;
  border-radius:16px;
  padding:24px 20px;
  background:#fff;
  box-shadow:0 10px 24px rgba(35,61,87,.04);
}

.feature .number {
  font-size:12px;
  color:#0e8db7;
  font-weight:900;
  letter-spacing:.08em;
}

.feature h3 {
  margin:12px 0 8px;
  font-size:20px;
}

.feature p {
  color:var(--muted);
  font-size:14px;
  margin:0;
}

.feature .symbol {
  font-size:31px;
  line-height:1.1;
}

.deep {
  background:#fff;
}

.deep-grid {
  display:grid;
  grid-template-columns:1fr 1fr;
  align-items:center;
  gap:60px;
}

.deep-visual {
  background:linear-gradient(145deg,#0a2942,#124d69);
  border-radius:22px;
  padding:28px;
  min-height:335px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  color:#fff;
}

.layer {
  display:flex;
  align-items:center;
  gap:16px;
  padding:15px;
  background:#ffffff15;
  border:1px solid #ffffff29;
  border-radius:12px;
  margin:6px 0;
}

.layer strong {
  font-size:18px;
}

.layer small {
  display:block;
  color:#bed8e9;
}

.deep-copy h2 {
  text-align:left;
}

.deep-copy p {
  color:var(--muted);
}

.bullets {
  margin:16px 0 0;
  padding:0;
  list-style:none;
}

.bullets li {
  padding:11px 0;
  border-bottom:1px solid #edf1f5;
}

.bullets li:before {
  content:'✓';
  color:#06996b;
  font-weight:900;
  margin-right:10px;
}

.join {
  background:linear-gradient(120deg,#0a2540,#113f62);
  color:#fff;
}

.join-inner {
  display:flex;
  gap:32px;
  justify-content:space-between;
  align-items:center;
}

.join h2 {
  margin:0 0 12px;
}

.join p {
  color:#c0d5e5;
  max-width:650px;
  margin:0;
}

.join .cta {
  flex-shrink:0;
}

.faq-grid {
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:15px;
}

.faq {
  background:#fff;
  padding:21px;
  border-radius:14px;
  border:1px solid #e2eaf2;
}

.faq h3 {
  font-size:16px;
  margin:0 0 8px;
}

.faq p {
  margin:0;
  color:var(--muted);
  font-size:14px;
}

.foot {
  padding:28px 0 100px;
  text-align:center;
  color:#66788b;
  font-size:12px;
}

.foot p {
  margin:5px auto;
  max-width:840px;
}

.sticky {
  position:fixed;
  bottom:0;
  left:0;
  right:0;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(12px);
  border-top:1px solid #dfe8ef;
  z-index:20;
  padding:10px max(16px,env(safe-area-inset-left)) calc(10px + env(safe-area-inset-bottom));
}

.sticky-inner {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  max-width:1160px;
  margin:auto;
}

.sticky-copy {
  font-size:14px;
  font-weight:800;
}

.sticky-copy small {
  display:block;
  color:#718195;
  font-weight:400;
  font-size:12px;
}

.sticky .cta {
  padding:11px 19px;
  border-radius:10px;
  font-size:15px;
}

@media(max-width:920px) {
  .hero-inner {
    gap:25px;
  }

  .features {
    grid-template-columns:repeat(2,1fr);
  }

  .deep-grid {
    gap:25px;
  }

}

@media(max-width:680px) {
  .wrap {
    width:min(100% - 32px,500px);
  }

  .nav {
    padding:13px 0;
  }

  .nav-note {
    display:none;
  }

  .logo {
    font-size:15px;
  }

  .nav-link {
    font-size:12px;
    padding:7px 11px;
  }

  .hero-inner {
    display:flex;
    flex-direction:column;
    padding:31px 0 40px;
    gap:26px;
  }

  .hero h1 {
    font-size:36px;
    margin:15px 0;
  }

  .hero .intro {
    font-size:15px;
  }

  .hero-img-wrap {
    width:100%;
    max-width:480px;
    transform:none;
  }

  .hero .cta {
    width:100%;
  }

  .chips span {
    font-size:12px;
  }

  .section {
    padding:44px 0;
  }

  .features {
    gap:10px;
  }

  .feature {
    padding:17px 13px;
  }

  .feature h3 {
    font-size:17px;
  }

  .feature p {
    font-size:13px;
  }

  .deep-grid {
    grid-template-columns:1fr;
    gap:22px;
  }

  .deep-visual {
    min-height:0;
  }

  .join-inner {
    flex-direction:column;
    align-items:stretch;
  }

  .join .cta {
    width:100%;
  }

  .faq-grid {
    grid-template-columns:1fr;
  }

  .sticky-copy {
    display:none;
  }

  .sticky .cta {
    width:100%;
    padding:12px;
  }

  .foot {
    padding-bottom:98px;
  }

}

@media(prefers-reduced-motion:reduce) {
  * {
    scroll-behavior:auto!important;
    transition:none!important;
  }

}

/* 2026 responsive refinement */
.hero-inner > div:first-child {
  min-width:0;
}

.hero-img-wrap {
  isolation:isolate;
}

.cta:focus-visible,.nav-link:focus-visible {
  outline:3px solid #ffd464;
  outline-offset:3px;
}

@media (max-width:680px) {
  body {
    background:#fff;
  }

  .wrap {
    width:calc(100% - 36px);
    max-width:520px;
  }

  .site-head .nav {
    padding:14px 0;
  }

  .site-head .logo {
    font-size:16px;
    letter-spacing:0;
  }

  .nav-link {
    border-color:#526e82;
    background:#ffffff0d;
  }

  .hero {
    background:linear-gradient(165deg,#06182b 0%,#0b3053 62%,#0b253a 100%);
  }

  .hero-inner {
    gap:19px;
    padding:27px 0 32px;
  }

  .hero h1 {
    font-size:clamp(30px,8.2vw,41px);
    line-height:1.25;
    letter-spacing:-.025em;
    margin:0 0 12px;
    font-weight:900;
  }

  .hero h1 em {
    color:#79dcff;
  }

  .hero .intro {
    font-size:14px;
    line-height:1.85;
    margin:0 0 15px;
    color:#e2eef7;
  }

  .chips {
    gap:7px;
    margin:0 0 18px;
  }

  .chips span {
    padding:5px 9px;
    font-size:11px;
    border-color:#49718c;
    background:#ffffff0b;
  }

  .hero .cta {
    padding:14px 16px;
    border-radius:15px;
    font-size:16px;
    min-height:55px;
  }

  .hero-note {
    font-size:11px;
    line-height:1.55;
    text-align:center;
    margin-top:9px;
  }

  .hero-img-wrap {
    max-width:100%;
    border-radius:15px;
    border-color:#3b5e7c;
    box-shadow:0 14px 36px #0005;
  }

  .hero-img-cap {
    font-size:11px;
    padding:23px 10px 9px;
  }

  .section {
    padding:37px 0;
  }

  .section-h {
    margin-bottom:20px;
  }

  .section h2 {
    font-size:26px;
    line-height:1.35;
  }

  .section-h p {
    font-size:13px;
    line-height:1.8;
  }

  .kicker {
    font-size:11px;
    letter-spacing:.09em;
  }

  .features {
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:10px;
  }

  .feature {
    padding:17px 13px;
    border-radius:14px;
  }

  .feature .symbol {
    font-size:26px;
  }

  .feature h3 {
    font-size:16px;
    margin:8px 0 5px;
  }

  .feature p {
    font-size:12px;
    line-height:1.7;
  }

  .feature .number {
    font-size:10px;
  }

  .deep-grid {
    gap:20px;
  }

  .deep-visual {
    padding:16px;
    border-radius:16px;
  }

  .layer {
    padding:12px;
    gap:12px;
  }

  .layer strong {
    font-size:15px;
  }

  .layer small {
    font-size:11px;
  }

  .deep-copy p,.bullets {
    font-size:14px;
  }

  .join-inner {
    gap:22px;
  }

  .join .cta {
    min-height:54px;
  }

  .faq-grid {
    gap:9px;
  }

  .faq {
    padding:16px;
    border-radius:13px;
  }

  .foot {
    font-size:11px;
    line-height:1.8;
    padding-bottom:105px;
  }

  .sticky {
    padding:9px 14px calc(9px + env(safe-area-inset-bottom));
  }

  .sticky .cta {
    max-width:520px;
    min-height:49px;
    border-radius:13px;
    font-size:15px;
  }

}

@media (max-width:370px) {
  .wrap {
    width:calc(100% - 28px);
  }

  .hero h1 {
    font-size:29px;
  }

  .feature {
    padding:14px 10px;
  }

  .feature h3 {
    font-size:15px;
  }

  .feature p {
    font-size:11px;
  }

  .chips span {
    font-size:10px;
  }

}