:root{
  --navy:#0b2545; --navy-2:#14406b;
  --blue:#1d6fb8; --blue-deep:#123f6b;
  --green:#2e8b57; --green-deep:#1f6e43;
  --teal:#2e8b57;                 /* legacy alias -> green */
  --gold:#c8a24b; --gold-light:#e8d5a3; --gold-deep:#9d7a2b;
  --bg:#f6f1e3; --card:#fffdf7; --text:#2b2924; --muted:#6b6150; --line:#e7dcc4;
  --radius:12px; --shadow:0 4px 22px rgba(60,45,15,.08);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:"Times New Roman",Times,"Songti SC","SimSun","STSong",serif;color:var(--text);background:var(--bg);line-height:1.65;}
a{color:var(--blue);}
.sec-head h2::after{content:"";display:block;width:60px;height:3px;background:var(--gold);margin-top:10px;border-radius:2px;}

/* ---------- language switching ---------- */
body.show-zh .en{display:none !important;}
body.show-en .zh{display:none !important;}

/* ---------- header ---------- */
header{position:sticky;top:0;z-index:100;background:rgba(11,37,69,.97);backdrop-filter:blur(8px);color:#fff;}
.nav-wrap{max-width:1180px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 24px;min-height:64px;flex-wrap:wrap;}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:.5px;white-space:nowrap;color:#fff;text-decoration:none;}
.brand .logo{width:38px;height:38px;border-radius:50%;background:conic-gradient(from 210deg,var(--gold),var(--teal),var(--navy-2),var(--gold));display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;color:#fff;border:2px solid var(--gold-light);}
.brand .logo-img{width:42px;height:42px;display:block;}
nav{display:flex;gap:2px;align-items:center;flex-wrap:wrap;}
nav a{color:#dbe4f0;text-decoration:none;font-size:13.5px;padding:8px 11px;border-radius:8px;transition:.2s;}
nav a:hover{background:rgba(255,255,255,.12);color:#fff;}
nav a.on{color:#fff;background:rgba(255,255,255,.14);}
nav a.join-link{background:var(--gold);color:var(--navy);font-weight:700;margin-left:6px;}
nav a.join-link:hover{background:var(--gold-light);}
.lang-btn{margin-left:8px;cursor:pointer;border:1px solid var(--gold);background:transparent;color:var(--gold-light);padding:6px 14px;border-radius:20px;font-size:13px;font-weight:600;}
.lang-btn:hover{background:var(--gold);color:var(--navy);}
.nav-toggle{display:none;background:transparent;border:0;color:#fff;font-size:24px;cursor:pointer;}

/* ---------- hero ---------- */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--blue-deep) 52%,var(--green-deep) 100%);color:#fff;position:relative;overflow:hidden;}
.hero::after{content:"";position:absolute;inset:0;background:
  radial-gradient(ellipse 600px 300px at 85% 20%,rgba(200,162,75,.18),transparent),
  radial-gradient(ellipse 500px 260px at 10% 90%,rgba(15,118,110,.25),transparent);}
.hero-inner{max-width:1180px;margin:0 auto;padding:88px 24px 78px;position:relative;z-index:1;}
.hero .kicker{display:inline-block;border:1px solid var(--gold);color:var(--gold-light);padding:6px 18px;border-radius:24px;font-size:13px;letter-spacing:1.5px;margin-bottom:26px;}
.hero h1{font-size:clamp(28px,4.2vw,52px);line-height:1.25;font-weight:800;max-width:900px;}
.hero h1 .accent{color:var(--gold-light);}
.hero .sub{margin-top:18px;font-size:clamp(15px,1.6vw,19px);color:#c9d6e8;max-width:780px;}
.hero .cta-row{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap;}
.btn{display:inline-block;text-decoration:none;font-weight:700;font-size:15px;padding:13px 28px;border-radius:30px;transition:.2s;border:0;cursor:pointer;}
.btn-gold{background:var(--gold);color:var(--navy);}
.btn-gold:hover{background:var(--gold-light);}
.btn-ghost{border:1.5px solid #ffffff66;color:#fff;}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1);}
.hero-stats{margin-top:54px;display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:18px;max-width:860px;}
.stat{border-left:3px solid var(--gold);padding-left:16px;}
.stat .num{font-size:30px;font-weight:800;color:var(--gold-light);}
.stat .lbl{font-size:13.5px;color:#b9c8dd;}

/* page header (subpages) */
.page-head{background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;}
.page-head .inner{max-width:1180px;margin:0 auto;padding:52px 24px 46px;}
.page-head .tag{color:var(--gold-light);font-weight:700;letter-spacing:2px;font-size:12.5px;text-transform:uppercase;}
.page-head h1{font-size:clamp(26px,3.4vw,38px);margin-top:8px;}
.page-head p{color:#c9d6e8;margin-top:12px;max-width:840px;font-size:16px;}

/* ---------- generic section ---------- */
section{max-width:1180px;margin:0 auto;padding:56px 24px 8px;}
.sec-head{margin-bottom:34px;}
.sec-head .tag{color:var(--teal);font-weight:700;letter-spacing:2px;font-size:13px;text-transform:uppercase;}
.sec-head h2{font-size:clamp(23px,3vw,33px);color:var(--navy);margin-top:6px;}
.sec-head p.lead{margin-top:12px;color:var(--muted);max-width:860px;font-size:16px;}
.grid{display:grid;gap:22px;}
.g2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr));}
.g3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));}
.g4{grid-template-columns:repeat(auto-fit,minmax(230px,1fr));}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 26px 24px;box-shadow:var(--shadow);}
.card h3{color:var(--navy);font-size:18px;margin-bottom:10px;}
.card p{color:var(--muted);font-size:14.5px;}
.icon{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:14px;background:linear-gradient(135deg,#eef3fa,#e2ecf7);}

/* ---------- membership ---------- */
.tier{position:relative;overflow:hidden;}
.tier .tier-band{position:absolute;top:0;left:0;right:0;height:6px;}
.tier ul{margin:14px 0 0 0;list-style:none;}
.tier ul li{padding:7px 0 7px 28px;position:relative;color:var(--text);font-size:14.5px;border-bottom:1px dashed var(--line);}
.tier ul li:last-child{border-bottom:none;}
.tier ul li::before{content:"✓";position:absolute;left:2px;color:var(--teal);font-weight:800;}
.tier .tier-type{display:inline-block;font-size:12px;font-weight:700;letter-spacing:1px;padding:4px 12px;border-radius:14px;margin-bottom:12px;}

/* ---------- members ---------- */
.founder-card{background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;border-radius:var(--radius);padding:34px;display:flex;gap:24px;align-items:center;flex-wrap:wrap;box-shadow:var(--shadow);margin-bottom:24px;}
.founder-card .seal{min-width:74px;height:74px;border-radius:50%;border:2px solid var(--gold);display:flex;align-items:center;justify-content:center;background:#fff;overflow:hidden;}
.founder-card .seal img{width:64px;height:auto;}
.founder-card h3{font-size:22px;}
.founder-card .role{color:var(--gold-light);font-weight:700;font-size:14px;letter-spacing:1px;margin-bottom:6px;}
.founder-card p{color:#c9d6e8;font-size:14.5px;max-width:760px;}
.member-card{display:flex;flex-direction:column;gap:6px;border-top:4px solid var(--teal);}
.member-card .m-logo{height:38px;margin-bottom:8px;display:flex;align-items:center;}
.member-card .m-logo img{height:38px;width:auto;max-width:120px;object-fit:contain;}
.member-card .m-name{font-weight:700;color:var(--navy);font-size:16px;}
.member-card .m-sub{color:var(--muted);font-size:13.5px;}
.member-card .m-tag{margin-top:auto;padding-top:10px;font-size:12px;color:var(--teal);font-weight:700;letter-spacing:.5px;}
.join-card{border:2px dashed var(--gold);background:#fdfaf2;display:flex;align-items:center;justify-content:center;text-align:center;flex-direction:column;gap:6px;}
.join-card .m-name{color:var(--gold);font-size:30px;font-weight:300;}
.scholar-strip{margin-top:22px;background:#fdfaf2;border:1px solid var(--gold-light);border-radius:var(--radius);padding:18px 22px;font-size:14.5px;}
.scholar-strip b{color:var(--teal);}
.fs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:22px;}
.fs-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px;text-align:center;box-shadow:var(--shadow);border-top:4px solid var(--gold);}
.fs-avatar{width:104px;height:104px;border-radius:50%;display:block;margin:0 auto 12px;}
.fs-name{font-weight:700;color:var(--navy);font-size:16px;}
.fs-inst{color:var(--muted);font-size:13px;margin-top:5px;line-height:1.5;}

/* membership tier tables */
.mtable{width:100%;border-collapse:collapse;background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);font-size:14px;margin:10px 0 26px;}
.mtable th{background:var(--navy);color:#fff;text-align:left;padding:11px 14px;font-size:13px;}
.mtable td{padding:11px 14px;border-bottom:1px solid var(--line);color:var(--text);vertical-align:top;}
.mtable tr:last-child td{border-bottom:none;}
.mtable tr:nth-child(even) td{background:#f7f9fc;}
.mtable .tier{font-weight:700;color:var(--navy-2);white-space:nowrap;}
.mtable .tier small{display:block;font-weight:400;color:var(--muted);font-size:11.5px;}
.msub{font-weight:800;color:var(--navy);font-size:16px;margin:24px 0 4px;}

/* ---------- partner network ---------- */
.partner-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px;margin-top:24px;}
.partner-col{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);}
.partner-col .pc-head{font-weight:800;color:var(--navy);font-size:15px;letter-spacing:.5px;padding-bottom:10px;margin-bottom:8px;border-bottom:2px solid var(--gold);}
.partner-col ul{list-style:none;}
.partner-col ul li{position:relative;padding:8px 0 8px 20px;font-size:13.8px;color:var(--text);border-bottom:1px dashed var(--line);}
.partner-col ul li:last-child{border-bottom:none;}
.partner-col ul li::before{content:"";position:absolute;left:0;top:15px;width:8px;height:8px;border-radius:50%;background:var(--teal);}

/* ---------- coverage map ---------- */
.map-wrap{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);margin-top:30px;}
.map-wrap h3{color:var(--navy);font-size:19px;margin-bottom:4px;}
.map-wrap .map-sub{color:var(--muted);font-size:14px;margin-bottom:14px;}
#brMap{width:100%;height:520px;}
@media(max-width:760px){#brMap{height:340px;}}
.map-legend{display:flex;flex-wrap:wrap;gap:18px;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);font-size:13.5px;color:var(--text);}
.map-legend .key{display:flex;align-items:center;gap:8px;}
.map-legend .swatch{width:16px;height:16px;border-radius:4px;border:1px solid rgba(0,0,0,.15);}
.map-note{margin-top:10px;font-size:12px;color:#9aa6b8;}
.map-fallback{display:none;padding:30px;text-align:center;color:var(--muted);font-size:14px;}

/* ---------- governance ---------- */
.gov-flow{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:22px;counter-reset:gov;}
.gov-step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);position:relative;}
.gov-step::before{counter-increment:gov;content:counter(gov,decimal-leading-zero);position:absolute;top:18px;right:22px;font-size:34px;font-weight:800;color:#e8edf5;}
.gov-step h3{color:var(--navy);font-size:17px;margin-bottom:8px;padding-right:48px;}
.gov-step p{color:var(--muted);font-size:14px;}

/* ---------- panels ---------- */
.panel-card{border-top:5px solid var(--teal);}
.panel-card.climate{border-top-color:#1d6fb8;}
.panel-card.environment{border-top-color:#0f766e;}
.panel-card.sustainability{border-top-color:#c8a24b;}
.panel-card h3{font-size:20px;}
.panel-card ul{list-style:none;margin-top:12px;}
.panel-card li{padding:6px 0 6px 20px;position:relative;font-size:14px;color:var(--text);}
.panel-card li::before{content:"▹";position:absolute;left:0;color:var(--teal);}

/* ---------- summit timeline ---------- */
.summit-banner{background:linear-gradient(120deg,#10243f,#173a63 60%,#0f5651);border-radius:var(--radius);color:#fff;padding:40px;display:flex;flex-wrap:wrap;gap:30px;align-items:center;justify-content:space-between;box-shadow:var(--shadow);margin-bottom:30px;}
.summit-banner h3{font-size:clamp(20px,2.4vw,28px);}
.summit-banner .when{color:var(--gold-light);font-weight:700;margin-top:6px;}
.timeline{position:relative;margin:10px 0 0 8px;padding-left:28px;border-left:2px solid var(--gold);}
.t-item{position:relative;padding:0 0 28px 8px;}
.t-item::before{content:"";position:absolute;left:-37px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--gold);border:3px solid #fff;box-shadow:0 0 0 2px var(--gold);}
.t-item .t-date{font-weight:800;color:var(--navy);font-size:15px;}
.t-item .t-body{color:var(--muted);font-size:14.5px;max-width:760px;}

/* ---------- fund ---------- */
.fund-hero{background:#fdf9ef;border:1px solid var(--gold-light);border-radius:var(--radius);padding:34px;margin-bottom:26px;}
.fund-hero .badge{display:inline-block;background:var(--gold);color:var(--navy);font-weight:800;font-size:12px;letter-spacing:1.5px;padding:5px 14px;border-radius:14px;margin-bottom:14px;}
.fund-hero h3{color:var(--navy);font-size:clamp(20px,2.4vw,26px);}
.fund-hero p{color:var(--muted);margin-top:10px;max-width:880px;font-size:15px;}
.fund-track{border-top:4px solid var(--gold);}
.fund-track .amount{color:var(--teal);font-weight:800;font-size:15px;margin:6px 0 10px;}
table.fund-table{width:100%;border-collapse:collapse;background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);font-size:14.5px;margin-top:26px;}
table.fund-table th{background:var(--navy);color:#fff;text-align:left;padding:14px 18px;font-size:14px;}
table.fund-table td{padding:13px 18px;border-bottom:1px solid var(--line);color:var(--text);vertical-align:top;}
table.fund-table tr:last-child td{border-bottom:none;}

/* ---------- join / forms ---------- */
.join-wrap{background:linear-gradient(135deg,var(--navy),#173a63);border-radius:var(--radius);color:#fff;padding:40px;box-shadow:var(--shadow);}
.join-wrap h2{font-size:clamp(22px,2.8vw,30px);}
.join-wrap p{color:#c9d6e8;margin-top:10px;max-width:760px;}
.join-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-top:30px;}
.join-box{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);border-radius:12px;padding:24px;}
.join-box h3{color:var(--gold-light);font-size:17px;margin-bottom:8px;}
.join-box p{font-size:14px;margin:0;}
.join-box a{color:#fff;}

.eoi-form{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);max-width:900px;}
.eoi-form .fg{margin-bottom:18px;}
.eoi-form label.lbl{display:block;font-weight:700;color:var(--navy);font-size:14px;margin-bottom:6px;}
.eoi-form input[type=text],.eoi-form input[type=email],.eoi-form input[type=url],.eoi-form textarea{
  width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:9px;font-size:14.5px;font-family:inherit;color:var(--text);background:#fff;}
.eoi-form input:focus,.eoi-form textarea:focus{outline:2px solid var(--gold);border-color:var(--gold);}
.eoi-form textarea{min-height:84px;resize:vertical;}
.eoi-form .row2{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.eoi-form .choices{display:flex;flex-wrap:wrap;gap:8px 20px;}
.eoi-form .choices label{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text);cursor:pointer;}
.eoi-form .choices input{width:17px;height:17px;accent-color:var(--navy);}
.eoi-form .hint{font-size:12.5px;color:var(--muted);margin-top:4px;}
.eoi-form .err-msg{background:#fdecea;border:1px solid #f5c6cb;color:#8a1f2b;padding:12px 14px;border-radius:9px;margin-bottom:18px;font-size:14px;}
.eoi-form .req{color:#c0392b;}
.hp{position:absolute;left:-9999px;opacity:0;}
.thankyou{text-align:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:60px 30px;box-shadow:var(--shadow);}
.thankyou .big{font-size:54px;}
.thankyou h2{color:var(--navy);margin:14px 0 8px;}
.thankyou p{color:var(--muted);max-width:560px;margin:0 auto;}

/* ---------- news ---------- */
.news-item{background:var(--card);border:1px solid var(--line);border-left:5px solid var(--gold);border-radius:var(--radius);padding:24px 26px;box-shadow:var(--shadow);margin-bottom:18px;}
.news-item .date{color:var(--teal);font-weight:700;font-size:13px;letter-spacing:.5px;}
.news-item h3{color:var(--navy);font-size:19px;margin:6px 0 8px;}
.news-item p{color:var(--muted);font-size:14.5px;}
.empty{color:var(--muted);font-style:italic;padding:20px 0;}

/* contact */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px;}
.contact-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);}
.contact-card h3{color:var(--navy);margin-bottom:8px;}
.contact-card p{color:var(--muted);font-size:14.5px;}

/* ---------- footer ---------- */
footer{margin-top:80px;background:#081c36;color:#9fb2cc;}
.foot-inner{max-width:1180px;margin:0 auto;padding:44px 24px 30px;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:28px;font-size:14px;}
.foot-inner h4{color:#fff;font-size:15px;margin-bottom:12px;}
.foot-inner a{color:#9fb2cc;text-decoration:none;display:block;padding:3px 0;}
.foot-inner a:hover{color:#fff;}
.copyright{border-top:1px solid #16304f;text-align:center;padding:18px;font-size:13px;color:#6e84a3;}

/* admin */
.admin-wrap{max-width:100%;padding:24px;}
.admin-wrap h1{color:var(--navy);font-size:22px;margin-bottom:6px;}
.admin-bar{margin:12px 0 16px;}
table.adm{width:100%;border-collapse:collapse;font-size:12.5px;background:#fff;}
table.adm th{background:var(--navy);color:#fff;padding:8px 10px;text-align:left;position:sticky;top:0;}
table.adm td{padding:7px 10px;border-bottom:1px solid var(--line);vertical-align:top;}
table.adm tr:nth-child(even){background:#f7f9fc;}

@media(max-width:920px){
  .nav-toggle{display:block;}
  nav{display:none;width:100%;flex-direction:column;align-items:stretch;padding-bottom:12px;}
  body.nav-open nav{display:flex;}
  nav a{padding:11px 8px;border-radius:6px;}
  .eoi-form .row2{grid-template-columns:1fr;}
}