:root{
  --ice:#F6FAFD;
  --ice-2:#ECF3F9;
  --frost:#E0EDF7;
  --navy-deep:#0D2757;
  --royal:#1E5AAC;
  --royal-soft:#2E6FC4;
  --cyan:#1BA3CF;
  --cyan-soft:#8ED9EF;
  --ink:#0F1B2D;
  --muted:#57697D;
  --line:rgba(14,42,92,.14);
  --line-cyan:rgba(27,163,207,.45);
  --display:'Marcellus',serif;
  --body:'Archivo',sans-serif;
  --radius:2px;
  --radius-img:8px;
}
html[lang="zh-Hans"]{
  --display:'Noto Serif SC',serif;
  --body:'Noto Sans SC',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{
  font-family:var(--body);
  background:var(--ice);
  color:var(--ink);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.container{max-width:1160px;margin:0 auto;padding:0 28px}
.display{font-family:var(--display);font-weight:400;letter-spacing:.01em}

/* ---------- Header ---------- */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(246,250,253,.9);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:80px;gap:18px}
.logo-img{height:50px;width:auto}
nav.main-nav{display:flex;gap:28px}
nav.main-nav a{font-size:.82rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--ink);padding:6px 0;border-bottom:2px solid transparent;transition:border-color .2s,color .2s}
nav.main-nav a:hover{color:var(--royal);border-bottom-color:var(--cyan)}
nav.main-nav a.active{color:var(--royal);border-bottom-color:var(--cyan)}
.header-right{display:flex;align-items:center;gap:18px}
.lang-switch{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:#fff}
.lang-switch button{
  font-family:var(--body);font-size:.75rem;font-weight:600;letter-spacing:.06em;
  background:none;border:none;padding:7px 14px;cursor:pointer;color:var(--muted);
  transition:background .2s,color .2s;
}
.lang-switch button[aria-pressed="true"]{background:var(--navy-deep);color:#fff}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:var(--radius);padding:8px 12px;cursor:pointer;font-size:1rem;color:var(--navy-deep)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-block;font-size:.82rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  padding:15px 30px;border-radius:var(--radius);transition:transform .2s,background .2s,color .2s,border-color .2s;
}
.btn-accent{background:var(--cyan);color:#fff}
.btn-accent:hover{background:var(--royal-soft);transform:translateY(-2px)}
.btn-ghost{border:1px solid rgba(246,250,253,.4);color:#fff}
.btn-ghost:hover{border-color:var(--cyan-soft);color:var(--cyan-soft)}
.btn-navy{background:var(--navy-deep);color:#fff;border:none;cursor:pointer;font-family:var(--body)}
.btn-navy:hover{background:var(--royal);transform:translateY(-2px)}
.btn-outline{border:1px solid var(--royal);color:var(--royal)}
.btn-outline:hover{background:var(--royal);color:#fff;transform:translateY(-2px)}

/* ---------- Home hero (photo) ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:
    linear-gradient(100deg,rgba(7,24,54,.94) 0%,rgba(13,44,100,.82) 46%,rgba(14,80,130,.38) 100%),
    url("img/render-aerial.jpg");
  background-size:cover;background-position:center;
}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.3}
.hero .container{position:relative;z-index:1}
.hero-inner{max-width:780px;padding:150px 0 130px}
.eyebrow{
  display:inline-block;font-size:.72rem;font-weight:600;letter-spacing:.28em;text-transform:uppercase;
  color:var(--cyan-soft);margin-bottom:26px;
}
.hero h1{font-family:var(--display);font-size:clamp(2.4rem,5vw,4.2rem);line-height:1.12;font-weight:400;margin-bottom:26px}
.hero h1 em{font-style:normal;color:var(--cyan-soft)}
.hero p.lede{font-size:1.06rem;line-height:1.75;color:rgba(246,250,253,.88);max-width:600px;margin-bottom:38px}
.cta-row{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{position:relative;z-index:1;border-top:1px solid rgba(142,217,239,.3);background:rgba(5,18,42,.55);backdrop-filter:blur(6px)}
.hero-stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.hstat{padding:30px 26px;border-left:1px solid rgba(142,217,239,.18)}
.hstat:first-child{border-left:none;padding-left:0}
.hstat .n{font-family:var(--display);font-size:2rem;color:var(--cyan-soft);line-height:1.1}
.hstat .l{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:rgba(246,250,253,.7);margin-top:6px}

/* ---------- Sub-page hero band ---------- */
.page-hero{
  background:linear-gradient(120deg,#081C3F 0%,#10387E 55%,#0F5B92 100%);
  color:#fff;padding:88px 0 72px;
}
.page-hero h1{font-family:var(--display);font-size:clamp(2rem,4vw,3.2rem);font-weight:400;line-height:1.15;margin-bottom:16px}
.page-hero .lede{color:rgba(246,250,253,.85);max-width:640px;font-size:1.02rem}
.page-hero .eyebrow{margin-bottom:18px}

/* ---------- Sections ---------- */
section{padding:100px 0}
.section-head{max-width:720px;margin-bottom:52px}
.section-head .eyebrow{color:var(--cyan)}
.section-head h2{font-family:var(--display);font-size:clamp(1.9rem,3.4vw,2.7rem);line-height:1.18;font-weight:400;color:var(--navy-deep)}
.section-head p{margin-top:18px;color:var(--muted)}
.section-foot{margin-top:44px}

/* ---------- Figures / photos ---------- */
figure.photo{border-radius:var(--radius-img);overflow:hidden;background:#fff;border:1px solid var(--line)}
figure.photo img{width:100%;height:auto}
figure.photo figcaption{font-size:.82rem;color:var(--muted);padding:14px 18px;border-top:1px solid var(--line)}
.figure-wide{margin:0 0 64px}

/* ---------- Teaser (text + image) ---------- */
.teaser-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:64px;align-items:center}
.teaser-grid p{color:#31445C;margin-bottom:26px}
.teaser-grid h2{font-family:var(--display);font-size:clamp(1.8rem,3.2vw,2.6rem);line-height:1.2;font-weight:400;color:var(--navy-deep);margin-bottom:20px}

/* ---------- About ---------- */
.about-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:64px;align-items:start}
.about-grid p{margin-bottom:20px;color:#31445C}
.badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}
.badge{
  font-size:.78rem;font-weight:600;letter-spacing:.1em;
  border:1px solid var(--line-cyan);color:var(--royal);
  padding:9px 16px;border-radius:999px;background:#fff;
}
.about-side{border-left:2px solid var(--cyan);padding-left:30px}
.about-side .fact{padding:18px 0;border-bottom:1px solid var(--line)}
.about-side .fact:last-child{border-bottom:none}
.about-side .fact .k{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.about-side .fact .v{font-family:var(--display);font-size:1.25rem;color:var(--navy-deep);margin-top:4px}

/* ---------- Capacity band ---------- */
.capacity{background:linear-gradient(120deg,#081C3F 0%,#0F3272 60%,#0F5B92 100%);color:#fff}
.capacity .eyebrow{color:var(--cyan-soft)}
.capacity h2{color:#fff}
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid rgba(142,217,239,.3)}
.cap{padding:52px 40px 46px;border-left:1px solid rgba(142,217,239,.18)}
.cap:first-child{border-left:none;padding-left:0}
.cap .n{font-family:var(--display);font-size:clamp(3rem,6vw,4.6rem);line-height:1;color:var(--cyan-soft)}
.cap .u{font-family:var(--display);font-size:1.15rem;color:#fff;margin-top:10px}
.cap .d{font-size:.9rem;color:rgba(246,250,253,.62);margin-top:8px}
.cap-note{margin-top:44px;font-size:.85rem;letter-spacing:.04em;color:rgba(246,250,253,.6);border-top:1px solid rgba(142,217,239,.18);padding-top:22px}

/* ---------- Phases ---------- */
.phases{background:var(--ice-2)}
.phase-list{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.phase{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:38px 32px;position:relative;transition:transform .25s,box-shadow .25s;
}
.phase:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(13,39,87,.10)}
.phase::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--royal),var(--cyan))}
.phase .years{font-size:.74rem;font-weight:700;letter-spacing:.2em;color:var(--cyan);text-transform:uppercase}
.phase h3{font-family:var(--display);font-size:1.5rem;color:var(--navy-deep);font-weight:400;margin:14px 0 6px}
.phase .cost{font-size:.95rem;font-weight:600;color:var(--royal);margin-bottom:14px}
.phase p{font-size:.95rem;color:var(--muted)}

/* ---------- CEMAC map ---------- */
.cemac{background:var(--frost)}
.cemac-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:72px;align-items:center}
.cemac-title{font-family:var(--display);font-size:clamp(1.9rem,3.4vw,2.7rem);line-height:1.18;font-weight:400;color:var(--navy-deep);margin-bottom:20px}
.cemac .eyebrow{color:var(--cyan)}
.cemac-p{color:#31445C;margin-bottom:18px}
.map-legend{display:flex;flex-direction:column;gap:12px;margin-top:28px}
.map-legend .lg{display:flex;align-items:center;gap:12px;font-size:.88rem;color:var(--muted)}
.map-legend .sw{width:18px;height:18px;border-radius:4px;background:#fff;border:1px solid var(--line);flex:none}
.map-legend .sw-cmr{background:var(--royal);border-color:var(--royal)}
.dot-pulse-mini{width:12px;height:12px;border-radius:50%;background:var(--cyan);flex:none;box-shadow:0 0 0 4px rgba(27,163,207,.25)}
.cemac-map svg{width:100%;height:auto;max-height:640px}
.cty{fill:#fff;stroke:var(--royal);stroke-width:1.1;stroke-linejoin:round;opacity:.95;transition:fill .25s}
.cty:hover{fill:var(--ice-2)}
.cty-cmr{fill:var(--royal)}
.cty-cmr:hover{fill:var(--royal-soft)}
.cty-label{font-family:var(--body);font-size:15px;font-weight:600;letter-spacing:.04em;fill:var(--navy-deep)}
.cty-label-inv{fill:#fff!important}
.site-label{font-family:var(--body);font-size:15px;font-weight:700;fill:var(--navy-deep);paint-order:stroke;stroke:#fff;stroke-width:4px;stroke-linejoin:round}
.pulse-dot{fill:var(--cyan)}
.pulse-ring{fill:none;stroke:var(--cyan);stroke-width:2;transform-origin:center;animation:pulse 2.2s ease-out infinite}
@keyframes pulse{
  0%{opacity:.9;transform:scale(.5)}
  70%{opacity:0;transform:scale(2.4)}
  100%{opacity:0;transform:scale(2.4)}
}
@media (prefers-reduced-motion:reduce){.pulse-ring{animation:none;opacity:.5}}

/* ---------- Timeline & progress ---------- */
.timeline{border-left:2px solid var(--cyan);margin-left:8px;padding-left:38px;max-width:760px}
.tl-item{position:relative;padding-bottom:44px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-46px;top:6px;width:14px;height:14px;border-radius:50%;
  background:var(--ice);border:3px solid var(--cyan);
}
.tl-item .date{font-size:.74rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan)}
.tl-item h3{font-family:var(--display);font-size:1.3rem;font-weight:400;color:var(--navy-deep);margin:8px 0 6px}
.tl-item p{color:var(--muted);font-size:.98rem;max-width:620px}
.progressbar{margin-top:18px;max-width:520px;height:30px;background:var(--ice-2);border:1px solid var(--line);border-radius:999px;overflow:hidden}
.progressbar-fill{
  height:100%;width:0;border-radius:999px;
  background:linear-gradient(90deg,var(--royal),var(--cyan));
  display:flex;align-items:center;justify-content:flex-end;
  transition:width 1.6s cubic-bezier(.22,.8,.3,1);
}
.progressbar-fill span{color:#fff;font-size:.78rem;font-weight:700;letter-spacing:.08em;padding-right:14px}
@media (prefers-reduced-motion:reduce){.progressbar-fill{transition:none}}

/* ---------- News cards ---------- */
.news{background:var(--ice)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-img);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s,box-shadow .25s;
}
.news-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(13,39,87,.12)}
.news-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--ice-2)}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.news-card:hover .thumb img{transform:scale(1.04)}
.news-card .body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-card .meta{display:flex;align-items:center;gap:10px;font-size:.74rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.news-card .meta .src{color:var(--royal)}
.news-card .lang-badge{font-size:.66rem;font-weight:700;border:1px solid var(--line-cyan);color:var(--cyan);border-radius:4px;padding:2px 6px}
.news-card h3{font-family:var(--display);font-weight:400;font-size:1.12rem;line-height:1.4;color:var(--navy-deep);flex:1}
.news-card .read{font-size:.8rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan)}
.news-card .read::after{content:" →"}
.news-note{margin-top:36px;font-size:.85rem;color:var(--muted)}

/* ---------- Gallery ---------- */
.gallery{background:var(--ice-2)}
.gallery-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.gallery-grid figure.photo .thumb{aspect-ratio:16/10;overflow:hidden}
.gallery-grid figure.photo .thumb img{width:100%;height:100%;object-fit:cover}

/* ---------- Commitments ---------- */
.commit{background:var(--frost)}
.commit-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.cgrid-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px 34px}
.cgrid-item h3{font-family:var(--display);font-size:1.35rem;font-weight:400;color:var(--navy-deep);margin-bottom:10px}
.cgrid-item p{font-size:.95rem;color:var(--muted)}
.cgrid-item .num{font-family:var(--display);color:var(--cyan);font-size:1rem;letter-spacing:.15em;margin-bottom:16px}

/* ---------- Quote ---------- */
.quote{background:linear-gradient(120deg,#081C3F 0%,#10387E 60%,#0F5B92 100%);color:#fff;text-align:center}
.quote blockquote{font-family:var(--display);font-size:clamp(1.5rem,3vw,2.3rem);line-height:1.35;max-width:880px;margin:0 auto}
.quote blockquote::before{content:"« ";color:var(--cyan-soft)}
.quote blockquote::after{content:" »";color:var(--cyan-soft)}
html[lang="zh-Hans"] .quote blockquote::before{content:"「"}
html[lang="zh-Hans"] .quote blockquote::after{content:"」"}
.quote cite{display:block;margin-top:28px;font-style:normal;font-size:.8rem;letter-spacing:.22em;text-transform:uppercase;color:var(--cyan-soft)}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:64px}
.contact-info .fact{margin-bottom:26px}
.contact-info .k{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.contact-info .v{font-family:var(--display);font-size:1.2rem;color:var(--navy-deep);margin-top:4px;line-height:1.5}
form{display:grid;gap:18px}
.field label{display:block;font-size:.76rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--royal);margin-bottom:8px}
.field input,.field textarea{
  width:100%;font-family:var(--body);font-size:1rem;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:14px 16px;transition:border-color .2s;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--cyan)}
form .btn{justify-self:start}

/* ---------- Footer ---------- */
footer{background:var(--navy-deep);color:rgba(246,250,253,.68);padding:56px 0;border-top:1px solid rgba(142,217,239,.28)}
.footer-inner{display:flex;justify-content:space-between;align-items:flex-start;gap:32px;flex-wrap:wrap}
.footer-mark{font-family:var(--display);font-size:1.25rem;letter-spacing:.14em;color:#fff}
.footer-mark .dot{color:var(--cyan)}
footer p{font-size:.82rem;max-width:460px;margin-top:12px}
footer nav{display:flex;gap:22px;flex-wrap:wrap;margin-top:6px}
footer nav a{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:rgba(246,250,253,.75)}
footer nav a:hover{color:var(--cyan-soft)}
footer .fine{font-size:.75rem;letter-spacing:.06em;margin-top:22px}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .hero-inner{padding:96px 0 84px}
  .hero-stats-grid{grid-template-columns:repeat(2,1fr)}
  .hstat{padding:24px 20px}
  .hstat:first-child{padding-left:20px}
  .about-grid,.contact-grid,.teaser-grid,.cemac-grid{grid-template-columns:1fr;gap:44px}
  .cap-grid,.phase-list,.news-grid{grid-template-columns:1fr}
  .cap{padding:36px 0;border-left:none;border-top:1px solid rgba(142,217,239,.18)}
  .cap:first-child{border-top:none}
  .commit-grid,.gallery-grid{grid-template-columns:1fr}
  .logo-img{height:40px}
  nav.main-nav{
    display:none;position:absolute;top:80px;left:0;right:0;
    background:var(--ice);border-bottom:1px solid var(--line);
    flex-direction:column;gap:0;padding:10px 28px 20px;
  }
  nav.main-nav.open{display:flex}
  nav.main-nav a{padding:13px 0;border-bottom:1px solid var(--line)}
  .menu-btn{display:block}
  section{padding:72px 0}
  .page-hero{padding:64px 0 56px}
}

/* Contact form extras */
.hp{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden;opacity:0}
.form-status{font-size:.92rem;margin-top:2px;min-height:1.4em}
.form-status.ok{color:#1B7A43}
.form-status.err{color:#B4232A}
.btn[disabled]{opacity:.55;pointer-events:none}

.mail-link{color:var(--royal);border-bottom:1px solid var(--line-cyan);transition:color .2s,border-color .2s}
.mail-link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}