:root{--navy:#0b2748;--blue:#1769aa;--sky:#eaf4fb;--paper:#f8fafc;--text:#172230;--muted:#5a6978;--line:#dce5ed;--white:#fff;--red:#b63438;--gold:#d59a2a;--max:1220px;--shadow:0 18px 50px rgba(8,38,68,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;color:var(--text);line-height:1.65;background:#fff}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.container{width:min(92%,var(--max));margin:auto}.narrow{max-width:840px}.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.header-inner{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;color:var(--navy);min-width:max-content}.brand:hover{text-decoration:none}.logo{width:60px;height:60px;flex:0 0 60px;object-fit:cover;border-radius:2px;display:block}.brand strong{display:block;font-size:19px;letter-spacing:-.02em}.brand small{display:block;color:var(--muted);font-size:12px}.nav-wrap{display:flex;align-items:center;gap:20px}.main-nav{display:flex;align-items:center;gap:17px}.main-nav a{color:var(--text);font-size:14px;font-weight:700;padding:28px 0 24px;border-bottom:3px solid transparent;white-space:nowrap}.main-nav a:hover{text-decoration:none;color:var(--blue)}.main-nav a.active{color:var(--blue);border-color:var(--blue)}.main-nav .donate-link{background:var(--red);color:#fff;padding:11px 16px;border:0;border-radius:8px}.language{position:relative}.language summary{cursor:pointer;list-style:none;border:1px solid var(--line);border-radius:8px;padding:9px 12px;font-weight:700;font-size:13px;color:var(--navy);white-space:nowrap}.language summary::-webkit-details-marker{display:none}.language-menu{position:absolute;right:0;top:46px;min-width:150px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:7px;box-shadow:var(--shadow)}.language-menu a{display:block;padding:9px 10px;border-radius:7px;color:var(--text);font-weight:650;font-size:14px}.language-menu a:hover{background:var(--sky);text-decoration:none}.menu-toggle{display:none;border:0;background:transparent;font-size:27px;color:var(--navy);cursor:pointer}.hero{position:relative;overflow:hidden;background:linear-gradient(125deg,#081f39 0%,#103c68 58%,#1769aa 100%);color:#fff;padding:108px 0 96px}.hero:before{content:"";position:absolute;width:620px;height:620px;border:1px solid rgba(255,255,255,.14);border-radius:50%;right:-250px;top:-300px}.hero:after{content:"";position:absolute;width:360px;height:360px;border:90px solid rgba(255,255,255,.055);border-radius:50%;right:6%;bottom:-250px}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:center}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:800;color:var(--blue);margin:0 0 13px}.hero .eyebrow{color:#a9d4f4}.hero h1{font-size:clamp(48px,6.3vw,82px);line-height:1.03;letter-spacing:-.045em;color:#fff;margin:0 0 24px;max-width:850px}.hero-text{font-size:clamp(18px,2vw,22px);color:#d9e7f3;max-width:770px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}.button{display:inline-flex;align-items:center;justify-content:center;padding:13px 20px;border-radius:8px;font-weight:800;text-decoration:none;transition:.18s ease}.button:hover{text-decoration:none;transform:translateY(-2px)}.button.primary{background:#fff;color:var(--navy)}.button.secondary{border:1px solid rgba(255,255,255,.65);color:#fff}.button.dark{background:var(--navy);color:#fff}.button.outline{border:1px solid var(--navy);color:var(--navy)}.hero-visual{position:relative;min-height:380px;display:grid;place-items:center}.house-symbol{width:min(100%,490px);aspect-ratio:1;border-radius:28px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);box-shadow:0 30px 90px rgba(0,0,0,.22);display:grid;place-items:center;position:relative;overflow:hidden}.house-symbol svg{width:66%;height:auto;filter:drop-shadow(0 12px 20px rgba(0,0,0,.18))}.hero-logo{width:100%;height:100%;object-fit:cover;display:block;border-radius:27px}.stat-strip{position:relative;z-index:2;margin-top:-34px}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);overflow:hidden}.stat{padding:25px 28px}.stat+.stat{border-left:1px solid var(--line)}.stat strong{display:block;font-size:18px;color:var(--navy);margin-bottom:3px}.stat span{font-size:14px;color:var(--muted)}.section{padding:86px 0}.section.alt{background:var(--paper)}.section.dark{background:var(--navy);color:#dbe7f1}.section.dark h2,.section.dark h3{color:#fff}.section-heading{max-width:770px;margin-bottom:36px}.section-heading.center{text-align:center;margin-left:auto;margin-right:auto}.section-heading h2,.page-hero h1,h2,h3,h4{color:var(--navy);line-height:1.15;letter-spacing:-.025em}.section-heading h2{font-size:clamp(32px,4.2vw,50px);margin:0 0 15px}.section-heading p:last-child{color:var(--muted);font-size:18px}.card-grid{display:grid;gap:22px}.card-grid.three{grid-template-columns:repeat(3,1fr)}.card-grid.two{grid-template-columns:repeat(2,1fr)}.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:29px;box-shadow:0 7px 22px rgba(10,40,70,.045)}.card h3{font-size:23px;margin:0 0 12px}.card p{color:var(--muted)}.icon{width:46px;height:46px;border-radius:12px;background:var(--sky);display:grid;place-items:center;color:var(--blue);font-weight:900;margin-bottom:20px;font-size:20px}.tag{display:inline-block;border-radius:999px;background:var(--sky);color:var(--blue);padding:5px 10px;font-weight:800;font-size:12px;margin-bottom:14px}.meta{font-size:13px;color:var(--muted);margin-bottom:8px}.feature-card{position:relative;overflow:hidden}.feature-card:after{content:"";position:absolute;width:90px;height:90px;border-radius:50%;background:var(--sky);right:-40px;top:-35px}.quote{border-left:5px solid var(--gold);padding-left:24px;font-size:25px;color:var(--navy);margin:0}.cta{background:linear-gradient(125deg,#0b2748,#145f99);color:#fff;padding:62px 0}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px}.cta h2{color:#fff;font-size:clamp(30px,4vw,48px);margin:0 0 8px}.cta p{color:#d9e7f3;margin:0}.page-hero{background:linear-gradient(130deg,#eef6fb,#f9fbfd);padding:72px 0;border-bottom:1px solid var(--line)}.page-hero h1{font-size:clamp(40px,5vw,64px);margin:0 0 18px}.page-hero p{font-size:20px;color:var(--muted);max-width:820px}.content h2{font-size:34px;margin-top:42px}.content h3{font-size:24px;margin-top:30px}.content p,.content li{font-size:17px}.notice{background:#eef7fc;border-left:4px solid var(--blue);padding:18px 20px;border-radius:7px;margin:24px 0}.notice.warning{background:#fff6ec;border-left-color:#bd7226}.list-clean{padding-left:20px}.list-clean li{margin:10px 0}.site-footer{background:#071a2c;color:#cbd8e4;padding-top:58px}.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:38px}.site-footer h3,.site-footer h4{color:#fff;margin-top:0}.site-footer a{color:#cbd8e4}.site-footer p{color:#aebdca}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:40px;padding:20px 0;font-size:13px;display:flex;justify-content:space-between;gap:20px}.zh body,.zh{font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif}
@media(max-width:1100px){.main-nav{gap:12px}.main-nav a{font-size:13px}.brand small{display:none}}
@media(max-width:950px){.menu-toggle{display:block}.nav-wrap{gap:10px}.main-nav{display:none;position:absolute;left:0;right:0;top:82px;background:#fff;padding:18px 4%;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;box-shadow:0 15px 30px rgba(0,0,0,.08)}.main-nav.open{display:flex}.main-nav a{padding:8px 0;border:0}.main-nav .donate-link{text-align:center}.hero-grid,.card-grid.three,.card-grid.two,.footer-grid{grid-template-columns:1fr}.hero-visual{min-height:300px}.stat-grid{grid-template-columns:1fr}.stat+.stat{border-left:0;border-top:1px solid var(--line)}.cta-inner{align-items:flex-start;flex-direction:column}}
@media(max-width:620px){.header-inner{min-height:72px}.brand strong{font-size:16px}.logo{width:48px;height:48px;flex-basis:48px}.main-nav{top:72px}.language summary{padding:8px 9px}.hero{padding:74px 0 70px}.hero h1{font-size:45px}.hero-visual{min-height:240px}.section{padding:62px 0}.stat-strip{margin-top:-22px}.footer-bottom{flex-direction:column}.cta{padding:48px 0}}

/* Mobile and tablet responsive improvements */
img,svg{max-width:100%;height:auto}
body{overflow-x:hidden}
.header-inner,.hero-grid,.card-grid,.footer-grid,.cta-inner{min-width:0}
.brand span,.hero-grid>div,.card,.stat{min-width:0}
h1,h2,h3,h4,p,a,span{overflow-wrap:break-word}

@media(max-width:950px){
  .site-header{position:sticky}
  .header-inner{position:relative}
  .nav-wrap{margin-left:auto}
  .menu-toggle{order:2;display:grid;place-items:center;width:42px;height:42px;padding:0;border:1px solid var(--line);border-radius:9px;font-size:23px}
  .language{order:1}
  .main-nav{z-index:50;max-height:calc(100vh - 82px);overflow-y:auto;gap:2px}
  .main-nav a{width:100%;padding:11px 4px}
  .main-nav .donate-link{margin-top:6px;padding:12px 16px}
  .hero{padding:78px 0 72px}
  .hero-grid{gap:42px}
  .hero h1{font-size:clamp(42px,9vw,66px)}
  .hero-text{font-size:19px}
  .hero-visual{min-height:0}
  .house-symbol{width:min(100%,520px);margin-inline:auto}
}

@media(max-width:700px){
  .container{width:min(90%,var(--max))}
  .header-inner{min-height:68px;gap:8px}
  .brand{gap:8px;min-width:0}
  .logo{width:44px;height:44px;flex:0 0 44px}
  .brand strong{font-size:15px;line-height:1.15;white-space:nowrap}
  .brand small{display:none}
  .language summary{font-size:0;padding:8px 9px}
  .language summary::before{content:"🌐";font-size:18px}
  .main-nav{top:68px;max-height:calc(100vh - 68px);padding:14px 5% 20px}
  .hero{padding:58px 0 54px}
  .hero-grid{gap:34px}
  .hero h1{font-size:clamp(36px,12vw,52px);line-height:1.02;margin-bottom:18px}
  .eyebrow{font-size:10px;letter-spacing:.13em}
  .hero-text{font-size:17px;line-height:1.55}
  .hero-actions{display:grid;grid-template-columns:1fr;gap:10px;margin-top:24px}
  .button{width:100%;padding:13px 16px}
  .hero-visual{width:100%}
  .house-symbol{width:100%;max-width:420px;border-radius:20px}
  .hero-logo{border-radius:19px}
  .stat{padding:20px}
  .section{padding:54px 0}
  .section-heading{margin-bottom:26px}
  .section-heading h2{font-size:34px}
  .section-heading p:last-child,.page-hero p{font-size:16px}
  .card{padding:22px}
  .card h3{font-size:21px}
  .page-hero{padding:50px 0}
  .page-hero h1{font-size:40px}
  .content h2{font-size:29px}
  .content h3{font-size:22px}
  .content p,.content li{font-size:16px}
  .quote{font-size:21px}
  .cta{padding:44px 0}
  .cta-inner{gap:22px}
  .footer-grid{gap:25px}
  .site-footer{padding-top:44px}
}

@media(max-width:420px){
  .container{width:92%}
  .brand strong{font-size:14px}
  .logo{width:40px;height:40px;flex-basis:40px}
  .menu-toggle{width:39px;height:39px}
  .language summary{padding:7px 8px}
  .hero h1{font-size:36px}
  .hero-text{font-size:16px}
  .house-symbol{border-radius:16px}
  .hero-logo{border-radius:15px}
  .section-heading h2{font-size:30px}
  .page-hero h1{font-size:35px}
}