/* ═══════════════════════════════════════════════════
   心鼎企業 Diamond Ship — Corporate Maritime Design
   Palette: #19AACE  #005083  #097586
   ═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Barlow:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300&family=Noto+Sans+TC:wght@300;400;500;700&display=swap');

:root {
  /* Brand colours */
  --c-sky:    #19AACE;   /* primary accent – bright teal-blue  */
  --c-deep:   #005083;   /* secondary – deep navy              */
  --c-teal:   #097586;   /* tertiary  – dark teal              */

  /* Tints & shades */
  --c-sky-10: rgba(25,170,206,0.10);
  --c-sky-20: rgba(25,170,206,0.20);
  --c-sky-light: #e8f7fb;
  --c-deep-10: rgba(0,80,131,0.08);
  --c-deep-hover: #003f6b;

  /* Neutrals */
  --c-white:  #ffffff;
  --c-bg:     #f7fafc;
  --c-line:   #dde8ef;
  --c-line2:  #b8d0de;
  --c-txt:    #1a2d3a;
  --c-txt2:   #3e5a6e;
  --c-muted:  #7a9aad;

  /* Typography */
  --ff-head:  'Barlow', 'Noto Sans TC', sans-serif;
  --ff-body:  'Noto Sans TC', 'Barlow', sans-serif;

  /* Easing */
  --ease-out: cubic-bezier(0.22,1,0.36,1);
  --ease-io:  cubic-bezier(0.45,0,0.55,1);

  /* Sizing */
  --nav-h: 68px;
}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--c-white);
  color:var(--c-txt);
  font-family:var(--ff-body);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{border:0;display:block;max-width:100%}
ul{list-style:none}
button{cursor:pointer;border:none;background:transparent;font:inherit}

/* ── Utilities ── */
.wrap{max-width:1220px;margin:0 auto;padding:0 40px}
.cc{clear:both}

/* ══════════════════════════════════════
   NAVIGATION
══════════════════════════════════════ */
#site-nav{
  position:fixed;top:0;left:0;right:0;
  height:var(--nav-h);
  background:var(--c-white);
  border-bottom:1px solid var(--c-line);
  z-index:900;
  transition:box-shadow .3s;
}
#site-nav.scrolled{
  box-shadow:0 2px 20px rgba(0,80,131,.10);
}
.nav-inner{
  max-width:1340px;margin:0 auto;padding:0 36px;
  height:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}

/* Logo */
.nav-logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-logo img{height:38px;width:auto;display:block}
.nav-logo-sep{
  width:1px;height:30px;
  background:var(--c-line2);
  flex-shrink:0;
}
.nav-logo-text .company-tc{
  font-family:var(--ff-body);
  font-size:13px;font-weight:500;
  color:var(--c-deep);
  letter-spacing:.06em;
  line-height:1.2;
}
.nav-logo-text .company-en{
  font-family:var(--ff-head);
  font-size:10.5px;font-weight:400;
  color:var(--c-muted);
  letter-spacing:.12em;
  text-transform:uppercase;
}

/* Desktop links */
.nav-links{
  display:flex;align-items:center;
  flex:1;justify-content:center;gap:2px;
}
.nav-links a{
  font-family:var(--ff-head);
  font-size:14px;font-weight:500;
  color:var(--c-txt2);
  padding:8px 16px;
  position:relative;
  white-space:nowrap;
  transition:color .25s;
}
.nav-links a::after{
  content:'';
  position:absolute;bottom:-1px;left:16px;right:16px;
  height:2px;background:var(--c-sky);
  transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease-out);
}
.nav-links a:hover{color:var(--c-sky)}
.nav-links a:hover::after,
.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-deep);font-weight:600}

/* Lang + CTA */
.nav-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
.nav-lang{
  display:flex;align-items:center;gap:0;
  border:1px solid var(--c-line2);
  overflow:hidden;
}
.nav-lang a{
  font-family:var(--ff-head);
  font-size:12px;font-weight:600;
  letter-spacing:.08em;
  padding:5px 11px;
  color:var(--c-muted);
  transition:background .25s,color .25s;
}
.nav-lang a + a{border-left:1px solid var(--c-line2)}
.nav-lang a.cur,.nav-lang a:hover{
  background:var(--c-sky);
  color:var(--c-white);
}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 20px;
  background:var(--c-deep);
  color:var(--c-white);
  font-family:var(--ff-head);
  font-size:13px;font-weight:600;
  letter-spacing:.05em;
  transition:background .25s;
}
.nav-cta:hover{background:var(--c-teal)}

/* Hamburger */
.nav-burger{
  display:none;
  flex-direction:column;gap:5px;
  padding:6px;margin-right:-6px;
}
.nav-burger span{
  display:block;width:24px;height:2px;
  background:var(--c-deep);
  transition:all .3s var(--ease-out);
}
.nav-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0;transform:scaleX(0)}
.nav-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Mobile drawer */
.nav-drawer{
  display:none;
  position:fixed;inset:var(--nav-h) 0 0 0;
  background:var(--c-white);
  z-index:800;
  overflow-y:auto;
  flex-direction:column;
  border-top:3px solid var(--c-sky);
}
.nav-drawer.open{display:flex}
.nav-drawer-links{flex:1;padding:20px 0}
.nav-drawer-links a{
  display:block;
  font-family:var(--ff-head);font-size:18px;font-weight:500;
  color:var(--c-txt);
  padding:16px 32px;
  border-bottom:1px solid var(--c-line);
  transition:color .2s,padding-left .2s;
}
.nav-drawer-links a:hover,
.nav-drawer-links a.active{
  color:var(--c-sky);
  padding-left:40px;
}
.nav-drawer-links a.active{font-weight:700}
.nav-drawer-foot{
  padding:24px 32px;
  border-top:1px solid var(--c-line);
  display:flex;align-items:center;gap:16px;
}
.nav-drawer-foot .nav-lang{border:1px solid var(--c-line2)}

/* ══════════════════════════════════════
   PAGE HERO (inner pages)
══════════════════════════════════════ */
.page-hero{
  margin-top:var(--nav-h);
  background:var(--c-deep);
  position:relative;overflow:hidden;
  padding:64px 0 54px;
}
/* geometric accent line */
.page-hero::before{
  content:'';
  position:absolute;left:0;top:0;bottom:0;
  width:5px;
  background:linear-gradient(to bottom,var(--c-sky),var(--c-teal));
}
.page-hero-bg-geo{
  position:absolute;right:-60px;top:-60px;
  width:420px;height:420px;
  border:1px solid rgba(255,255,255,.05);
  border-radius:50%;
  pointer-events:none;
}
.page-hero-bg-geo::before{
  content:'';position:absolute;inset:40px;
  border:1px solid rgba(255,255,255,.04);
  border-radius:50%;
}
.page-hero-inner{
  max-width:1220px;margin:0 auto;padding:0 60px;
  display:flex;align-items:flex-end;
  justify-content:space-between;gap:30px;
}
.page-hero-label{
  font-family:var(--ff-head);
  font-size:11px;font-weight:600;
  letter-spacing:.28em;text-transform:uppercase;
  color:var(--c-sky);
  margin-bottom:10px;
  display:flex;align-items:center;gap:10px;
}
.page-hero-label::before{
  content:'';width:24px;height:1px;background:var(--c-sky);
}
.page-hero h1{
  font-family:var(--ff-head);
  font-size:clamp(28px,3.5vw,44px);
  font-weight:700;
  color:var(--c-white);
  letter-spacing:.02em;
  line-height:1.15;
}
.page-hero-sub{
  font-size:15px;color:rgba(255,255,255,.55);
  margin-top:10px;font-weight:300;
  letter-spacing:.03em;
}
.page-hero-aside{
  text-align:right;flex-shrink:0;
}
.page-hero-aside .kicker{
  font-family:var(--ff-head);
  font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:rgba(255,255,255,.3);
}

/* ── Page hero background image variants ── */
.page-hero-has-img{
  padding:80px 0 68px;
  height:350px;
  display:flex;
  align-items:center;
}
.page-hero-has-img .page-hero-inner{
  width:100%;
  align-items:center;
}
@media(max-width:768px){
  .page-hero-has-img{
    height:500px;
    padding:48px 0 40px;
    display:flex;
  }
}
.page-hero-has-img .page-hero-img{
  position:absolute;inset:0;
  background-size:cover;
  background-position:center center;
  background-repeat:no-repeat;
}
/* dark overlay so text stays legible over the photo */
.page-hero-has-img .page-hero-img::after{
  content:'';
  position:absolute;inset:0;
  background:linear-gradient(
    90deg,
    rgba(0,28,54,.82) 0%,
    rgba(0,50,83,.60) 45%,
    rgba(0,80,131,.30) 100%
  );
}
/* accent stripe still rendered on top */
.page-hero-has-img::before{z-index:2}
.page-hero-has-img .page-hero-bg-geo,
.page-hero-has-img .page-hero-inner{position:relative;z-index:2}

/* Breadcrumb */
.breadcrumb{
  background:var(--c-bg);
  border-bottom:1px solid var(--c-line);
  padding:12px 0;
}
.breadcrumb-inner{
  max-width:1220px;margin:0 auto;padding:0 60px;
  display:flex;align-items:center;gap:8px;
  font-family:var(--ff-head);
  font-size:12px;color:var(--c-muted);
  letter-spacing:.04em;
}
.breadcrumb-inner a{color:var(--c-sky);transition:color .2s}
.breadcrumb-inner a:hover{color:var(--c-deep)}
.breadcrumb-inner .sep{opacity:.4}

/* ══════════════════════════════════════
   SECTION HELPERS
══════════════════════════════════════ */
.section{padding:80px 0}
.section--bg{background:var(--c-bg)}
.section--deep{background:var(--c-deep)}

.section-eyebrow{
  font-family:var(--ff-head);
  font-size:11px;font-weight:700;
  letter-spacing:.28em;text-transform:uppercase;
  color:var(--c-sky);
  margin-bottom:12px;
  display:flex;align-items:center;gap:10px;
}
.section-eyebrow::before{content:'';width:24px;height:2px;background:var(--c-sky)}
.section-title{
  font-family:var(--ff-head);
  font-size:clamp(24px,3vw,36px);
  font-weight:700;
  color:var(--c-deep);
  letter-spacing:.02em;
  line-height:1.2;
}
.section-title.on-dark{color:var(--c-white)}
.section-lead{
  font-size:15px;color:var(--c-txt2);
  line-height:1.85;margin-top:14px;
  max-width:680px;
}
.section-lead.on-dark{color:rgba(255,255,255,.65)}
.rule{
  width:48px;height:3px;
  background:linear-gradient(to right,var(--c-sky),var(--c-teal));
  margin:18px 0;
  border-radius:2px;
}

/* ══════════════════════════════════════
   BUTTONS
══════════════════════════════════════ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--ff-head);font-size:13px;font-weight:600;
  letter-spacing:.07em;text-transform:uppercase;
  padding:12px 28px;
  transition:all .25s var(--ease-out);
  position:relative;overflow:hidden;
}
.btn-primary{
  background:var(--c-sky);color:var(--c-white);
}
.btn-primary:hover{background:var(--c-deep);transform:translateY(-2px)}
.btn-outline{
  border:2px solid var(--c-sky);color:var(--c-sky);
}
.btn-outline:hover{background:var(--c-sky);color:var(--c-white);transform:translateY(-2px)}
.btn-white{
  background:var(--c-white);color:var(--c-deep);
}
.btn-white:hover{background:var(--c-sky-light);transform:translateY(-2px)}
.btn-arrow::after{content:'→';margin-left:4px;transition:transform .25s}
.btn-arrow:hover::after{transform:translateX(4px)}

/* ══════════════════════════════════════
   CARDS
══════════════════════════════════════ */
.card{
  background:var(--c-white);
  border:1px solid var(--c-line);
  transition:box-shadow .3s,transform .35s var(--ease-out),border-color .3s;
}
.card:hover{
  box-shadow:0 8px 40px rgba(0,80,131,.12);
  transform:translateY(-4px);
  border-color:var(--c-sky);
}
.card-top-bar{
  height:3px;
  background:linear-gradient(to right,var(--c-sky),var(--c-teal));
}

/* ══════════════════════════════════════
   FOOTER
══════════════════════════════════════ */
#site-footer{
  background:var(--c-deep);
  border-top:3px solid var(--c-sky);
}
.footer-main{
  max-width:1220px;margin:0 auto;
  padding:60px 40px 44px;
  display:grid;
  grid-template-columns:260px 1fr auto;
  gap:60px;
  align-items:start;
}
.footer-brand img{height:36px;width:auto;margin-bottom:14px;
  filter:brightness(0) invert(1) opacity(.9);}
.footer-brand p{
  font-size:13px;color:rgba(255,255,255,.45);
  line-height:1.8;margin-top:6px;
}
.footer-info{display:flex;flex-direction:column;gap:14px}
.footer-info-item{
  display:flex;align-items:flex-start;gap:12px;
}
.footer-info-label{
  font-family:var(--ff-head);font-size:10px;font-weight:700;
  letter-spacing:.18em;text-transform:uppercase;
  color:var(--c-sky);
  min-width:34px;padding-top:2px;
}
.footer-info-val{
  font-size:13px;color:rgba(255,255,255,.6);
  line-height:1.6;
}
.footer-info-val a{color:rgba(255,255,255,.6);transition:color .2s}
.footer-info-val a:hover{color:var(--c-sky)}
.footer-nav-col h4{
  font-family:var(--ff-head);font-size:11px;font-weight:700;
  letter-spacing:.2em;text-transform:uppercase;
  color:rgba(255,255,255,.35);
  margin-bottom:18px;
}
.footer-nav-col a{
  display:block;
  font-size:13.5px;color:rgba(255,255,255,.55);
  margin-bottom:10px;
  transition:color .2s,padding-left .2s;
}
.footer-nav-col a:hover{color:var(--c-sky);padding-left:4px}
.footer-bar{
  border-top:1px solid rgba(255,255,255,.08);
  padding:18px 40px;
  max-width:1220px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  font-family:var(--ff-head);font-size:12px;
  color:rgba(255,255,255,.28);
  letter-spacing:.04em;
}

/* ══════════════════════════════════════
   SCROLL REVEAL
══════════════════════════════════════ */
.reveal{
  opacity:0;transform:translateY(24px);
  transition:opacity .7s var(--ease-out),transform .7s var(--ease-out);
}
.reveal.visible{opacity:1;transform:none}
.reveal-up{opacity:0;transform:translateY(40px);
  transition:opacity .8s var(--ease-out),transform .8s var(--ease-out)}
.reveal-up.visible{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}
.d3{transition-delay:.24s}.d4{transition-delay:.32s}
.d5{transition-delay:.40s}.d6{transition-delay:.48s}

/* ══════════════════════════════════════
   RESPONSIVE BREAKPOINTS
══════════════════════════════════════ */
@media(max-width:1080px){
  .nav-links,.nav-cta{display:none}
  .nav-lang{display:none}
  .nav-burger{display:flex}
}
@media(max-width:640px){
  /* 左右邊界縮小至 10px */
  .nav-inner{padding:0 10px;gap:8px}
  /* 顯示語言切換按鈕 */
  .nav-lang{display:flex}
}
@media(max-width:900px){
  .wrap,.breadcrumb-inner,.page-hero-inner{padding-left:24px;padding-right:24px}
  .section{padding:56px 0}
  .footer-main{grid-template-columns:1fr;gap:36px}
  .footer-bar{flex-direction:column;gap:6px;text-align:center}
}
@media(max-width:640px){
  .page-hero{padding:44px 0 36px}
  .page-hero-inner{flex-direction:column;gap:16px}
  .page-hero-aside{display:none}
  .page-hero h1{font-size:26px}

  /* 情境圖頁面：手機版文字置右、不斷行 */
  .page-hero-has-img .page-hero-inner{
    align-items:flex-end;
    text-align:right;
  }
  .page-hero-has-img .page-hero-inner > div:first-child{
    width:100%;
  }
  .page-hero-has-img .page-hero-label{
    justify-content:flex-end;
    white-space:nowrap;
  }
  .page-hero-has-img .page-hero-label::before{
    display:none;  /* 左側裝飾線移除，改放右側 */
  }
  .page-hero-has-img .page-hero-label::after{
    content:'';width:24px;height:1px;background:var(--c-sky);
    flex-shrink:0;
  }
  .page-hero-has-img .page-hero h1{
    white-space:nowrap;
    font-size:clamp(18px,5.5vw,26px); /* 縮小字級防止溢出 */
  }
  .page-hero-has-img .page-hero-sub{
    white-space:nowrap;
    font-size:13px;
  }
}